Serialize PictureLayer properties.

cc/layers/picture_layer_unittest.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/layers/picture_layer.h"
 
 #include "base/thread_task_runner_handle.h"
 #include "cc/layers/content_layer_client.h"
+#include "cc/layers/empty_content_layer_client.h"
 #include "cc/layers/layer_settings.h"
 #include "cc/layers/picture_layer_impl.h"
 #include "cc/playback/display_item_list_settings.h"
+#include "cc/proto/layer.pb.h"
 #include "cc/test/fake_display_list_recording_source.h"
 #include "cc/test/fake_layer_tree_host.h"
 #include "cc/test/fake_picture_layer.h"
 #include "cc/test/fake_picture_layer_impl.h"
 #include "cc/test/fake_proxy.h"
 #include "cc/test/layer_tree_settings_for_testing.h"
 #include "cc/test/test_shared_bitmap_manager.h"
 #include "cc/test/test_task_graph_runner.h"
 #include "cc/trees/single_thread_proxy.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
+
+class TestSerializationPictureLayer : public PictureLayer {
+ public:
+  static scoped_refptr<TestSerializationPictureLayer> Create(
+      const gfx::Size& recording_source_viewport) {
+    return make_scoped_refptr(new TestSerializationPictureLayer(
+        LayerSettings(), EmptyContentLayerClient::GetInstance(),
+        FakeDisplayListRecordingSource::CreateFilledRecordingSource(
+            recording_source_viewport),
+        recording_source_viewport));
+  }
+
+  FakeDisplayListRecordingSource* recording_source() {
+    return static_cast<FakeDisplayListRecordingSource*>(
+        recording_source_.get());
+  }
+
+  void set_invalidation(const Region& invalidation) {
+    *invalidation_.region() = invalidation;
+  }
+
+  void set_last_updated_visible_layer_rect(const gfx::Rect& rect) {
+    last_updated_visible_layer_rect_ = rect;
+  }
+
+  void set_update_source_frame_number(int number) {
+    update_source_frame_number_ = number;
+  }
+
+  void set_is_mask(bool is_mask) { is_mask_ = is_mask; }
+
+  void set_nearest_neighbor(bool nearest_neighbor) {
+    nearest_neighbor_ = nearest_neighbor;
+  }
+
+  void ValidateSerialization() {
+    proto::LayerProperties proto;
+    LayerSpecificPropertiesToProto(&proto);
+
+    scoped_refptr<TestSerializationPictureLayer> layer =
+        TestSerializationPictureLayer::Create(recording_source_viewport_);
+    layer->FromLayerSpecificPropertiesProto(proto);
+
+    // Validate that the PictureLayer specific fields are properly set.
+    EXPECT_TRUE(recording_source()->EqualsTo(*layer->recording_source()));
+    EXPECT_EQ(last_updated_visible_layer_rect_,
+              layer->last_updated_visible_layer_rect_);
+    EXPECT_EQ(update_source_frame_number_, layer->update_source_frame_number_);
+    EXPECT_EQ(is_mask_, layer->is_mask_);
+    EXPECT_EQ(nearest_neighbor_, layer->nearest_neighbor_);
+  }
+
+ private:
+  TestSerializationPictureLayer(const LayerSettings& settings,
+                                ContentLayerClient* client,
+                                scoped_ptr<DisplayListRecordingSource> source,
+                                const gfx::Size& recording_source_viewport)
+      : PictureLayer(settings, client, std::move(source)),
+        recording_source_viewport_(recording_source_viewport) {}
+  ~TestSerializationPictureLayer() override {}
+
+  gfx::Size recording_source_viewport_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestSerializationPictureLayer);
+};
+
 namespace {
 
-class MockContentLayerClient : public ContentLayerClient {
- public:
-  gfx::Rect PaintableRegion() override { return gfx::Rect(); }
-  scoped_refptr<DisplayItemList> PaintContentsToDisplayList(
-      PaintingControlSetting picture_control) override {
-    return DisplayItemList::Create(gfx::Rect(), DisplayItemListSettings());
-  }
-  bool FillsBoundsCompletely() const override { return false; };
-  size_t GetApproximateUnsharedMemoryUsage() const override { return 0; }
-};
+TEST(PictureLayerTest, TestSetAllPropsSerializationDeserialization) {
+  FakeLayerTreeHostClient host_client(FakeLayerTreeHostClient::DIRECT_3D);
+  TestTaskGraphRunner task_graph_runner;
+  scoped_ptr<FakeLayerTreeHost> host =
+      FakeLayerTreeHost::Create(&host_client, &task_graph_runner);
+
+  gfx::Size recording_source_viewport(256, 256);
+  scoped_refptr<TestSerializationPictureLayer> layer =
+      TestSerializationPictureLayer::Create(recording_source_viewport);
+  host->SetRootLayer(layer);
+
+  Region region(gfx::Rect(14, 15, 16, 17));
+  layer->set_invalidation(region);
+  layer->set_last_updated_visible_layer_rect(gfx::Rect(5, 6, 7, 8));
+  layer->set_is_mask(true);
+  layer->set_nearest_neighbor(true);
+
+  layer->SetBounds(recording_source_viewport);
+  layer->set_update_source_frame_number(0);
+  layer->recording_source()->SetDisplayListUsesCachedPicture(false);
+  layer->recording_source()->add_draw_rect(
+      gfx::Rect(recording_source_viewport));
+  layer->recording_source()->SetGenerateDiscardableImagesMetadata(true);
+  layer->recording_source()->Rerecord();
+  layer->ValidateSerialization();
+}
+
+TEST(PictureLayerTest, TestSerializationDeserialization) {
+  FakeLayerTreeHostClient host_client(FakeLayerTreeHostClient::DIRECT_3D);
+  TestTaskGraphRunner task_graph_runner;
+  scoped_ptr<FakeLayerTreeHost> host =
+      FakeLayerTreeHost::Create(&host_client, &task_graph_runner);
+
+  gfx::Size recording_source_viewport(256, 256);
+  scoped_refptr<TestSerializationPictureLayer> layer =
+      TestSerializationPictureLayer::Create(recording_source_viewport);
+  host->SetRootLayer(layer);
+
+  layer->SetBounds(recording_source_viewport);
+  layer->set_update_source_frame_number(0);
+  layer->recording_source()->SetDisplayListUsesCachedPicture(false);
+  layer->recording_source()->add_draw_rect(
+      gfx::Rect(recording_source_viewport));
+  layer->recording_source()->SetGenerateDiscardableImagesMetadata(true);
+  layer->recording_source()->Rerecord();
+  layer->ValidateSerialization();
+}
+
+TEST(PictureLayerTest, TestEmptySerializationDeserialization) {
+  FakeLayerTreeHostClient host_client(FakeLayerTreeHostClient::DIRECT_3D);
+  TestTaskGraphRunner task_graph_runner;
+  scoped_ptr<FakeLayerTreeHost> host =
+      FakeLayerTreeHost::Create(&host_client, &task_graph_runner);
+
+  gfx::Size recording_source_viewport(256, 256);
+  scoped_refptr<TestSerializationPictureLayer> layer =
+      TestSerializationPictureLayer::Create(recording_source_viewport);
+  host->SetRootLayer(layer);
+  layer->ValidateSerialization();
+}
 
 TEST(PictureLayerTest, NoTilesIfEmptyBounds) {
-  MockContentLayerClient client;
+  ContentLayerClient* client = EmptyContentLayerClient::GetInstance();
   scoped_refptr<PictureLayer> layer =
-      PictureLayer::Create(LayerSettings(), &client);
+      PictureLayer::Create(LayerSettings(), client);
   layer->SetBounds(gfx::Size(10, 10));
 
   FakeLayerTreeHostClient host_client(FakeLayerTreeHostClient::DIRECT_3D);
   TestTaskGraphRunner task_graph_runner;
   scoped_ptr<FakeLayerTreeHost> host =
       FakeLayerTreeHost::Create(&host_client, &task_graph_runner);
   host->SetRootLayer(layer);
   layer->SetIsDrawable(true);
   layer->SavePaintProperties();
   layer->Update();
@@ skipping 23 matching lines @@
   EXPECT_EQ(gfx::Size(), layer_impl->raster_source()->GetSize());
   EXPECT_FALSE(layer_impl->raster_source()->HasRecordings());
 }
 
 TEST(PictureLayerTest, SuitableForGpuRasterization) {
   scoped_ptr<FakeDisplayListRecordingSource> recording_source_owned(
       new FakeDisplayListRecordingSource);
   FakeDisplayListRecordingSource* recording_source =
       recording_source_owned.get();
 
-  MockContentLayerClient client;
+  ContentLayerClient* client = EmptyContentLayerClient::GetInstance();
   scoped_refptr<FakePictureLayer> layer =
       FakePictureLayer::CreateWithRecordingSource(
-          LayerSettings(), &client, std::move(recording_source_owned));
+          LayerSettings(), client, std::move(recording_source_owned));
 
   FakeLayerTreeHostClient host_client(FakeLayerTreeHostClient::DIRECT_3D);
   TestTaskGraphRunner task_graph_runner;
   scoped_ptr<FakeLayerTreeHost> host =
       FakeLayerTreeHost::Create(&host_client, &task_graph_runner);
   host->SetRootLayer(layer);
 
   // Update layers to initialize the recording source.
   gfx::Size layer_bounds(200, 200);
   gfx::Rect layer_rect(layer_bounds);
   Region invalidation(layer_rect);
   recording_source->UpdateAndExpandInvalidation(
-      &client, &invalidation, layer_bounds, layer_rect, 1,
+      client, &invalidation, layer_bounds, layer_rect, 1,
       DisplayListRecordingSource::RECORD_NORMALLY);
 
   // Layer is suitable for gpu rasterization by default.
   EXPECT_TRUE(recording_source->IsSuitableForGpuRasterization());
   EXPECT_TRUE(layer->IsSuitableForGpuRasterization());
 
   // Veto gpu rasterization.
   recording_source->SetUnsuitableForGpuRasterization();
   EXPECT_FALSE(recording_source->IsSuitableForGpuRasterization());
   EXPECT_FALSE(layer->IsSuitableForGpuRasterization());
 }
 
 // PicturePile uses the source frame number as a unit for measuring invalidation
 // frequency. When a pile moves between compositors, the frame number increases
 // non-monotonically. This executes that code path under this scenario allowing
 // for the code to verify correctness with DCHECKs.
 TEST(PictureLayerTest, NonMonotonicSourceFrameNumber) {
   LayerTreeSettingsForTesting settings;
   settings.single_thread_proxy_scheduler = false;
   settings.use_zero_copy = true;
 
   FakeLayerTreeHostClient host_client1(FakeLayerTreeHostClient::DIRECT_3D);
   FakeLayerTreeHostClient host_client2(FakeLayerTreeHostClient::DIRECT_3D);
   TestSharedBitmapManager shared_bitmap_manager;
   TestTaskGraphRunner task_graph_runner;
 
-  MockContentLayerClient client;
+  ContentLayerClient* client = EmptyContentLayerClient::GetInstance();
   scoped_refptr<FakePictureLayer> layer =
-      FakePictureLayer::Create(LayerSettings(), &client);
+      FakePictureLayer::Create(LayerSettings(), client);
 
   LayerTreeHost::InitParams params;
   params.client = &host_client1;
   params.shared_bitmap_manager = &shared_bitmap_manager;
   params.settings = &settings;
   params.task_graph_runner = &task_graph_runner;
   params.main_task_runner = base::ThreadTaskRunnerHandle::Get();
   scoped_ptr<LayerTreeHost> host1 =
       LayerTreeHost::CreateSingleThreaded(&host_client1, &params);
   host1->SetVisible(true);
@@ skipping 27 matching lines @@
   // Do a main frame, record the picture layers. The frame number has changed
   // non-monotonically.
   layer->SetNeedsDisplay();
   host2->Composite(base::TimeTicks::Now());
   EXPECT_EQ(3, layer->update_count());
   EXPECT_EQ(1, host2->source_frame_number());
 }
 
 }  // namespace
 }  // namespace cc