pathops version two

src/pathops/SkPathOpsTightBounds.cpp

 /*
  * 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 "SkOpEdgeBuilder.h"
 #include "SkPathOpsCommon.h"
 
 bool TightBounds(const SkPath& path, SkRect* result) {
+    SkOpContour contour;
+    SkOpGlobalState globalState( NULL  PATH_OPS_DEBUG_PARAMS(&contour));
     // turn path into list of segments
-    SkTArray<SkOpContour> contours;
-    SkOpEdgeBuilder builder(path, contours);
-    if (!builder.finish()) {
+    SkChunkAlloc allocator(4096);  // FIXME: constant-ize, tune
+    SkOpEdgeBuilder builder(path, &contour, &allocator, &globalState);
+    if (!builder.finish(&allocator)) {
         return false;
     }
-    SkTArray<SkOpContour*, true> contourList;
-    MakeContourList(contours, contourList, false, false);
+    SkTDArray<SkOpContour* > contourList;
+    MakeContourList(&contour, contourList, false, false);
     SkOpContour** currentPtr = contourList.begin();
     result->setEmpty();
     if (!currentPtr) {
         return true;
     }
     SkOpContour** listEnd = contourList.end();
     SkOpContour* current = *currentPtr++;
     SkPathOpsBounds bounds = current->bounds();
     while (currentPtr != listEnd) {
         current = *currentPtr++;
         bounds.add(current->bounds());
     }
     *result = bounds;
     return true;
 }