Reland of: cc: Add occlusion checker as a fixed view of occlusion tracker.

cc/resources/picture_layer_tiling_perftest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/debug/lap_timer.h"
 #include "cc/resources/picture_layer_tiling.h"
 #include "cc/resources/resource_provider.h"
 #include "cc/resources/scoped_resource.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_output_surface_client.h"
@@ skipping 56 matching lines @@
     perf_test::PrintResult(
         "invalidation", "", test_name, timer_.LapsPerSecond(), "runs/s", true);
   }
 
   void RunUpdateTilePrioritiesStationaryTest(const std::string& test_name,
                                              const gfx::Transform& transform) {
     gfx::Rect viewport_rect(0, 0, 1024, 768);
 
     timer_.Reset();
     do {
-      picture_layer_tiling_->UpdateTilePriorities(PENDING_TREE,
-                                                  viewport_rect,
-                                                  1.f,
-                                                  timer_.NumLaps() + 1,
-                                                  NULL,
-                                                  NULL,
-                                                  gfx::Transform());
+      picture_layer_tiling_->UpdateTilePriorities(
+          PENDING_TREE, viewport_rect, 1.f, timer_.NumLaps() + 1, Occlusion());
       timer_.NextLap();
     } while (!timer_.HasTimeLimitExpired());
 
     perf_test::PrintResult("update_tile_priorities_stationary",
                            "",
                            test_name,
                            timer_.LapsPerSecond(),
                            "runs/s",
                            true);
   }
 
   void RunUpdateTilePrioritiesScrollingTest(const std::string& test_name,
                                             const gfx::Transform& transform) {
     gfx::Size viewport_size(1024, 768);
     gfx::Rect viewport_rect(viewport_size);
     int xoffsets[] = {10, 0, -10, 0};
     int yoffsets[] = {0, 10, 0, -10};
     int offsetIndex = 0;
     int offsetCount = 0;
     const int maxOffsetCount = 1000;
 
     timer_.Reset();
     do {
-      picture_layer_tiling_->UpdateTilePriorities(PENDING_TREE,
-                                                  viewport_rect,
-                                                  1.f,
-                                                  timer_.NumLaps() + 1,
-                                                  NULL,
-                                                  NULL,
-                                                  gfx::Transform());
+      picture_layer_tiling_->UpdateTilePriorities(
+          PENDING_TREE, viewport_rect, 1.f, timer_.NumLaps() + 1, Occlusion());
 
       viewport_rect = gfx::Rect(viewport_rect.x() + xoffsets[offsetIndex],
                                 viewport_rect.y() + yoffsets[offsetIndex],
                                 viewport_rect.width(),
                                 viewport_rect.height());
 
       if (++offsetCount > maxOffsetCount) {
         offsetCount = 0;
         offsetIndex = (offsetIndex + 1) % 4;
       }
       timer_.NextLap();
     } while (!timer_.HasTimeLimitExpired());
 
     perf_test::PrintResult("update_tile_priorities_scrolling",
                            "",
                            test_name,
                            timer_.LapsPerSecond(),
                            "runs/s",
                            true);
   }
 
   void RunRasterIteratorConstructTest(const std::string& test_name,
                                       const gfx::Rect& viewport) {
     gfx::Size bounds(viewport.size());
     picture_layer_tiling_ =
         PictureLayerTiling::Create(1, bounds, &picture_layer_tiling_client_);
     picture_layer_tiling_client_.set_tree(ACTIVE_TREE);
     picture_layer_tiling_->UpdateTilePriorities(
-        ACTIVE_TREE, viewport, 1.0f, 1.0, NULL, NULL, gfx::Transform());
+        ACTIVE_TREE, viewport, 1.0f, 1.0, Occlusion());
 
     timer_.Reset();
     do {
       PictureLayerTiling::TilingRasterTileIterator it(
           picture_layer_tiling_.get(), ACTIVE_TREE);
       timer_.NextLap();
     } while (!timer_.HasTimeLimitExpired());
 
     perf_test::PrintResult("tiling_raster_tile_iterator_construct",
                            "",
                            test_name,
                            timer_.LapsPerSecond(),
                            "runs/s",
                            true);
   }
 
   void RunRasterIteratorConstructAndIterateTest(const std::string& test_name,
                                                 int num_tiles,
                                                 const gfx::Rect& viewport) {
     gfx::Size bounds(10000, 10000);
     picture_layer_tiling_ =
         PictureLayerTiling::Create(1, bounds, &picture_layer_tiling_client_);
     picture_layer_tiling_client_.set_tree(ACTIVE_TREE);
     picture_layer_tiling_->UpdateTilePriorities(
-        ACTIVE_TREE, viewport, 1.0f, 1.0, NULL, NULL, gfx::Transform());
+        ACTIVE_TREE, viewport, 1.0f, 1.0, Occlusion());
 
     timer_.Reset();
     do {
       int count = num_tiles;
       PictureLayerTiling::TilingRasterTileIterator it(
           picture_layer_tiling_.get(), ACTIVE_TREE);
       while (count--) {
         ASSERT_TRUE(it) << "count: " << count;
         ASSERT_TRUE(*it != NULL) << "count: " << count;
         ++it;
       }
       timer_.NextLap();
     } while (!timer_.HasTimeLimitExpired());
 
     perf_test::PrintResult("tiling_raster_tile_iterator_construct_and_iterate",
                            "",
                            test_name,
                            timer_.LapsPerSecond(),
                            "runs/s",
                            true);
   }
 
   void RunEvictionIteratorConstructTest(const std::string& test_name,
                                         const gfx::Rect& viewport) {
     gfx::Size bounds(viewport.size());
     picture_layer_tiling_ =
         PictureLayerTiling::Create(1, bounds, &picture_layer_tiling_client_);
     picture_layer_tiling_client_.set_tree(ACTIVE_TREE);
     picture_layer_tiling_->UpdateTilePriorities(
-        ACTIVE_TREE, viewport, 1.0f, 1.0, NULL, NULL, gfx::Transform());
+        ACTIVE_TREE, viewport, 1.0f, 1.0, Occlusion());
 
     timer_.Reset();
     TreePriority priorities[] = {SAME_PRIORITY_FOR_BOTH_TREES,
                                  SMOOTHNESS_TAKES_PRIORITY,
                                  NEW_CONTENT_TAKES_PRIORITY};
     int priority_count = 0;
     do {
       PictureLayerTiling::TilingEvictionTileIterator it(
           picture_layer_tiling_.get(),
           priorities[priority_count],
@@ skipping 11 matching lines @@
   }
 
   void RunEvictionIteratorConstructAndIterateTest(const std::string& test_name,
                                                   int num_tiles,
                                                   const gfx::Rect& viewport) {
     gfx::Size bounds(10000, 10000);
     picture_layer_tiling_ =
         PictureLayerTiling::Create(1, bounds, &picture_layer_tiling_client_);
     picture_layer_tiling_client_.set_tree(ACTIVE_TREE);
     picture_layer_tiling_->UpdateTilePriorities(
-        ACTIVE_TREE, viewport, 1.0f, 1.0, NULL, NULL, gfx::Transform());
+        ACTIVE_TREE, viewport, 1.0f, 1.0, Occlusion());
 
     TreePriority priorities[] = {SAME_PRIORITY_FOR_BOTH_TREES,
                                  SMOOTHNESS_TAKES_PRIORITY,
                                  NEW_CONTENT_TAKES_PRIORITY};
 
     // Ensure all tiles have resources.
     std::vector<Tile*> all_tiles = picture_layer_tiling_->AllTilesForTesting();
     for (std::vector<Tile*>::iterator tile_it = all_tiles.begin();
          tile_it != all_tiles.end();
          ++tile_it) {
@@ skipping 121 matching lines @@
       "32_500x500", 32, gfx::Rect(0, 0, 500, 500));
   RunEvictionIteratorConstructAndIterateTest(
       "64_100x100", 64, gfx::Rect(0, 0, 100, 100));
   RunEvictionIteratorConstructAndIterateTest(
       "64_500x500", 64, gfx::Rect(0, 0, 500, 500));
 }
 
 }  // namespace
 
 }  // namespace cc