1 files changed, 114 insertions, 0 deletions
diff --git a/chromium/cc/layers/picture_layer_impl_perftest.cc b/chromium/cc/layers/picture_layer_impl_perftest.cc
new file mode 100644
index 00000000000..26280c10de8
--- /dev/null
+++ b/chromium/cc/layers/picture_layer_impl_perftest.cc
@@ -0,0 +1,114 @@
+// Copyright 2014 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/layers/picture_layer_impl.h"
+
+#include "cc/debug/lap_timer.h"
+#include "cc/test/fake_impl_proxy.h"
+#include "cc/test/fake_layer_tree_host_impl.h"
+#include "cc/test/fake_output_surface.h"
+#include "cc/test/fake_picture_layer_impl.h"
+#include "cc/test/fake_picture_pile_impl.h"
+#include "cc/test/impl_side_painting_settings.h"
+#include "cc/test/test_shared_bitmap_manager.h"
+#include "cc/trees/layer_tree_impl.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/perf/perf_test.h"
+
+namespace cc {
+namespace {
+
+static const int kTimeLimitMillis = 2000;
+static const int kWarmupRuns = 5;
+static const int kTimeCheckInterval = 10;
+
+class PictureLayerImplPerfTest : public testing::Test {
+ public:
+  PictureLayerImplPerfTest()
+      : proxy_(base::MessageLoopProxy::current()),
+        host_impl_(ImplSidePaintingSettings(),
+                   &proxy_,
+                   &shared_bitmap_manager_),
+        timer_(kWarmupRuns,
+               base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
+               kTimeCheckInterval) {}
+
+  virtual void SetUp() OVERRIDE {
+    host_impl_.InitializeRenderer(
+        FakeOutputSurface::Create3d().PassAs<OutputSurface>());
+  }
+
+  void SetupPendingTree(const gfx::Size& layer_bounds,
+                        const gfx::Size& tile_size) {
+    scoped_refptr<FakePicturePileImpl> pile =
+        FakePicturePileImpl::CreateFilledPile(tile_size, layer_bounds);
+    host_impl_.CreatePendingTree();
+    LayerTreeImpl* pending_tree = host_impl_.pending_tree();
+    pending_tree->DetachLayerTree();
+
+    scoped_ptr<FakePictureLayerImpl> pending_layer =
+        FakePictureLayerImpl::CreateWithPile(pending_tree, 7, pile);
+    pending_layer->SetDrawsContent(true);
+    pending_tree->SetRootLayer(pending_layer.PassAs<LayerImpl>());
+
+    pending_layer_ = static_cast<FakePictureLayerImpl*>(
+        host_impl_.pending_tree()->LayerById(7));
+    pending_layer_->DoPostCommitInitializationIfNeeded();
+  }
+
+  void RunLayerRasterTileIteratorTest(const std::string& test_name,
+                                      int num_tiles,
+                                      const gfx::Size& viewport_size) {
+    host_impl_.SetViewportSize(viewport_size);
+    host_impl_.pending_tree()->UpdateDrawProperties();
+
+    timer_.Reset();
+    do {
+      int count = num_tiles;
+      for (PictureLayerImpl::LayerRasterTileIterator it(pending_layer_, false);
+           it && count;
+           ++it) {
+        --count;
+      }
+      timer_.NextLap();
+    } while (!timer_.HasTimeLimitExpired());
+
+    perf_test::PrintResult("layer_raster_tile_iterator",
+                           "",
+                           test_name,
+                           timer_.LapsPerSecond(),
+                           "runs/s",
+                           true);
+  }
+
+ protected:
+  TestSharedBitmapManager shared_bitmap_manager_;
+  FakeImplProxy proxy_;
+  FakeLayerTreeHostImpl host_impl_;
+  FakePictureLayerImpl* pending_layer_;
+  LapTimer timer_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(PictureLayerImplPerfTest);
+};
+
+TEST_F(PictureLayerImplPerfTest, LayerRasterTileIterator) {
+  SetupPendingTree(gfx::Size(10000, 10000), gfx::Size(256, 256));
+
+  float low_res_factor = host_impl_.settings().low_res_contents_scale_factor;
+
+  pending_layer_->AddTiling(low_res_factor);
+  pending_layer_->AddTiling(0.3f);
+  pending_layer_->AddTiling(0.7f);
+  pending_layer_->AddTiling(1.0f);
+  pending_layer_->AddTiling(2.0f);
+
+  RunLayerRasterTileIteratorTest("32_100x100", 32, gfx::Size(100, 100));
+  RunLayerRasterTileIteratorTest("32_500x500", 32, gfx::Size(500, 500));
+  RunLayerRasterTileIteratorTest("64_100x100", 64, gfx::Size(100, 100));
+  RunLayerRasterTileIteratorTest("64_500x500", 64, gfx::Size(500, 500));
+}
+
+}  // namespace
+}  // namespace cc