Initial QuadTree implementation

tools/PictureRenderingFlags.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 "PictureRenderingFlags.h"
 
 #include "CopyTilesRenderer.h"
 #include "PictureRenderer.h"
 #include "picture_utils.h"
 #include "SkCommandLineFlags.h"
 #include "SkData.h"
 #include "SkImage.h"
 #include "SkImageDecoder.h"
 #include "SkString.h"
 
 // Alphabetized list of flags used by this file or bench_ and render_pictures.
 DEFINE_string(bbh, "none", "bbhType [width height]: Set the bounding box hierarchy type to "
-              "be used. Accepted values are: none, rtree, grid. "
+              "be used. Accepted values are: none, rtree, quadtree, grid. "
               "Not compatible with --pipe. With value "
               "'grid', width and height must be specified. 'grid' can "
               "only be used with modes tile, record, and "
               "playbackCreation.");
 
 
 #if SK_SUPPORT_GPU
 #define GPU_CONFIG_STRING "|gpu|msaa4|msaa16"
 #else
 #define GPU_CONFIG_STRING ""
@@ skipping 286 matching lines @@
 #endif
     }
 
 
     sk_tools::PictureRenderer::BBoxHierarchyType bbhType
             = sk_tools::PictureRenderer::kNone_BBoxHierarchyType;
     if (FLAGS_bbh.count() > 0) {
         const char* type = FLAGS_bbh[0];
         if (0 == strcmp(type, "none")) {
             bbhType = sk_tools::PictureRenderer::kNone_BBoxHierarchyType;
+        } else if (0 == strcmp(type, "quadtree")) {
+            bbhType = sk_tools::PictureRenderer::kQuadTree_BBoxHierarchyType;
         } else if (0 == strcmp(type, "rtree")) {
             bbhType = sk_tools::PictureRenderer::kRTree_BBoxHierarchyType;
         } else if (0 == strcmp(type, "grid")) {
             if (!gridSupported) {
                 error.printf("'--bbh grid' is not compatible with --mode=%s.\n", mode);
                 return NULL;
             }
             bbhType = sk_tools::PictureRenderer::kTileGrid_BBoxHierarchyType;
             if (FLAGS_bbh.count() != 3) {
                 error.printf("--bbh grid requires a width and a height.\n");
@@ skipping 10 matching lines @@
         if (FLAGS_pipe && sk_tools::PictureRenderer::kNone_BBoxHierarchyType != bbhType) {
             error.printf("--pipe and --bbh cannot be used together\n");
             return NULL;
         }
     }
     renderer->setBBoxHierarchyType(bbhType);
     renderer->setScaleFactor(SkDoubleToScalar(FLAGS_scale));
 
     return renderer.detach();
 }