cc/layers/picture_layer_unittest.cc - chromium/src - Git at Google

 // 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 <stddef.h>

 #include "base/thread_task_runner_handle.h"
 #include "cc/layers/append_quads_data.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_image_serialization_processor.h"
 #include "cc/test/fake_layer_tree_host.h"
 #include "cc/test/fake_output_surface.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/skia_common.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);

     FakeLayerTreeHostClient host_client(FakeLayerTreeHostClient::DIRECT_3D);
     TestTaskGraphRunner task_graph_runner;
     LayerTreeSettings settings;
     scoped_ptr<FakeImageSerializationProcessor>
         fake_image_serialization_processor =
             make_scoped_ptr(new FakeImageSerializationProcessor);
     scoped_ptr<FakeLayerTreeHost> host =
         FakeLayerTreeHost::Create(&host_client, &task_graph_runner, settings,
                                   CompositorMode::SINGLE_THREADED,
                                   fake_image_serialization_processor.get());
     scoped_refptr<TestSerializationPictureLayer> layer =
         TestSerializationPictureLayer::Create(recording_source_viewport_);
     host->SetRootLayer(layer);
     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 {

 TEST(PictureLayerTest, TestSetAllPropsSerializationDeserialization) {
   FakeLayerTreeHostClient host_client(FakeLayerTreeHostClient::DIRECT_3D);
   TestTaskGraphRunner task_graph_runner;
   LayerTreeSettings settings;
   scoped_ptr<FakeImageSerializationProcessor>
       fake_image_serialization_processor =
           make_scoped_ptr(new FakeImageSerializationProcessor);
   scoped_ptr<FakeLayerTreeHost> host =
       FakeLayerTreeHost::Create(&host_client, &task_graph_runner, settings,
                                 CompositorMode::SINGLE_THREADED,
                                 fake_image_serialization_processor.get());

   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;
   LayerTreeSettings settings;
   settings.use_compositor_animation_timelines = true;
   scoped_ptr<FakeImageSerializationProcessor>
       fake_image_serialization_processor =
           make_scoped_ptr(new FakeImageSerializationProcessor);
   scoped_ptr<FakeLayerTreeHost> host =
       FakeLayerTreeHost::Create(&host_client, &task_graph_runner, settings,
                                 CompositorMode::SINGLE_THREADED,
                                 fake_image_serialization_processor.get());
   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) {
   ContentLayerClient* client = EmptyContentLayerClient::GetInstance();
   scoped_refptr<PictureLayer> layer =
       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();

   EXPECT_EQ(0, host->source_frame_number());
   host->CommitComplete();
   EXPECT_EQ(1, host->source_frame_number());

   layer->SetBounds(gfx::Size(0, 0));
   layer->SavePaintProperties();
   // Intentionally skipping Update since it would normally be skipped on
   // a layer with empty bounds.

   FakeImplTaskRunnerProvider impl_task_runner_provider;

   TestSharedBitmapManager shared_bitmap_manager;
   FakeLayerTreeHostImpl host_impl(LayerTreeSettingsForTesting(),
                                   &impl_task_runner_provider,
                                   &shared_bitmap_manager, &task_graph_runner);
   host_impl.CreatePendingTree();
   scoped_ptr<FakePictureLayerImpl> layer_impl =
       FakePictureLayerImpl::Create(host_impl.pending_tree(), 1);

   layer->PushPropertiesTo(layer_impl.get());
   EXPECT_FALSE(layer_impl->CanHaveTilings());
   EXPECT_TRUE(layer_impl->bounds() == gfx::Size(0, 0));
   EXPECT_EQ(gfx::Size(), layer_impl->raster_source()->GetSize());
   EXPECT_FALSE(layer_impl->raster_source()->HasRecordings());
 }

 TEST(PictureLayerTest, ClearVisibleRectWhenNoTiling) {
   gfx::Size layer_size(50, 50);
   FakeContentLayerClient client;
   client.set_bounds(layer_size);
   skia::RefPtr<SkImage> image = CreateDiscardableImage(layer_size);
   client.add_draw_image(image.get(), gfx::Point(), SkPaint());
   scoped_refptr<PictureLayer> layer =
       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();

   EXPECT_EQ(0, host->source_frame_number());
   host->CommitComplete();
   EXPECT_EQ(1, host->source_frame_number());

   layer->SavePaintProperties();
   layer->Update();

   FakeImplTaskRunnerProvider impl_task_runner_provider;

   TestSharedBitmapManager shared_bitmap_manager;
   scoped_ptr<OutputSurface> output_surface(FakeOutputSurface::Create3d());
   LayerTreeSettings layer_tree_settings = LayerTreeSettingsForTesting();
   layer_tree_settings.image_decode_tasks_enabled = true;
   FakeLayerTreeHostImpl host_impl(layer_tree_settings,
                                   &impl_task_runner_provider,
                                   &shared_bitmap_manager, &task_graph_runner);
   host_impl.SetVisible(true);
   EXPECT_TRUE(host_impl.InitializeRenderer(output_surface.get()));

   host_impl.CreatePendingTree();
   host_impl.pending_tree()->SetRootLayer(
       FakePictureLayerImpl::Create(host_impl.pending_tree(), 1));

   FakePictureLayerImpl* layer_impl = static_cast<FakePictureLayerImpl*>(
       host_impl.pending_tree()->root_layer());

   layer->PushPropertiesTo(layer_impl);

   host->CommitComplete();
   EXPECT_EQ(2, host->source_frame_number());

   host_impl.ActivateSyncTree();

   // By updating the draw proprties on the active tree, we will set the viewport
   // rect for tile priorities to something non-empty.
   const bool can_use_lcd_text = false;
   host_impl.active_tree()->property_trees()->needs_rebuild = true;
   host_impl.active_tree()->BuildPropertyTreesForTesting();
   host_impl.active_tree()->UpdateDrawProperties(can_use_lcd_text);

   layer->SetBounds(gfx::Size(11, 11));
   layer->SavePaintProperties();

   host_impl.CreatePendingTree();
   layer_impl = static_cast<FakePictureLayerImpl*>(
       host_impl.pending_tree()->root_layer());

   // We should now have invalid contents and should therefore clear the
   // recording source.
   layer->PushPropertiesTo(layer_impl);

   host_impl.ActivateSyncTree();

   scoped_ptr<RenderPass> render_pass = RenderPass::Create();
   AppendQuadsData data;
   host_impl.active_tree()->root_layer()->WillDraw(DRAW_MODE_SOFTWARE, nullptr);
   host_impl.active_tree()->root_layer()->AppendQuads(render_pass.get(), &data);
   host_impl.active_tree()->root_layer()->DidDraw(nullptr);
 }

 TEST(PictureLayerTest, SuitableForGpuRasterization) {
   scoped_ptr<FakeDisplayListRecordingSource> recording_source_owned(
       new FakeDisplayListRecordingSource);
   FakeDisplayListRecordingSource* recording_source =
       recording_source_owned.get();

   ContentLayerClient* client = EmptyContentLayerClient::GetInstance();
   scoped_refptr<FakePictureLayer> layer =
       FakePictureLayer::CreateWithRecordingSource(
           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,
       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;

   ContentLayerClient* client = EmptyContentLayerClient::GetInstance();
   scoped_refptr<FakePictureLayer> layer =
       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);
   host_client1.SetLayerTreeHost(host1.get());

   params.client = &host_client2;
   scoped_ptr<LayerTreeHost> host2 =
       LayerTreeHost::CreateSingleThreaded(&host_client2, &params);
   host2->SetVisible(true);
   host_client2.SetLayerTreeHost(host2.get());

   // The PictureLayer is put in one LayerTreeHost.
   host1->SetRootLayer(layer);
   // Do a main frame, record the picture layers.
   EXPECT_EQ(0, layer->update_count());
   layer->SetNeedsDisplay();
   host1->Composite(base::TimeTicks::Now());
   EXPECT_EQ(1, layer->update_count());
   EXPECT_EQ(1, host1->source_frame_number());

   // The source frame number in |host1| is now higher than host2.
   layer->SetNeedsDisplay();
   host1->Composite(base::TimeTicks::Now());
   EXPECT_EQ(2, layer->update_count());
   EXPECT_EQ(2, host1->source_frame_number());

   // Then moved to another LayerTreeHost.
   host1->SetRootLayer(nullptr);
   host2->SetRootLayer(layer);

   // 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
	// 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 <stddef.h>

	#include "base/thread_task_runner_handle.h"
	#include "cc/layers/append_quads_data.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_image_serialization_processor.h"
	#include "cc/test/fake_layer_tree_host.h"
	#include "cc/test/fake_output_surface.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/skia_common.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);

	FakeLayerTreeHostClient host_client(FakeLayerTreeHostClient::DIRECT_3D);
	TestTaskGraphRunner task_graph_runner;
	LayerTreeSettings settings;
	scoped_ptr<FakeImageSerializationProcessor>
	fake_image_serialization_processor =
	make_scoped_ptr(new FakeImageSerializationProcessor);
	scoped_ptr<FakeLayerTreeHost> host =
	FakeLayerTreeHost::Create(&host_client, &task_graph_runner, settings,
	CompositorMode::SINGLE_THREADED,
	fake_image_serialization_processor.get());
	scoped_refptr<TestSerializationPictureLayer> layer =
	TestSerializationPictureLayer::Create(recording_source_viewport_);
	host->SetRootLayer(layer);
	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 {

	TEST(PictureLayerTest, TestSetAllPropsSerializationDeserialization) {
	FakeLayerTreeHostClient host_client(FakeLayerTreeHostClient::DIRECT_3D);
	TestTaskGraphRunner task_graph_runner;
	LayerTreeSettings settings;
	scoped_ptr<FakeImageSerializationProcessor>
	fake_image_serialization_processor =
	make_scoped_ptr(new FakeImageSerializationProcessor);
	scoped_ptr<FakeLayerTreeHost> host =
	FakeLayerTreeHost::Create(&host_client, &task_graph_runner, settings,
	CompositorMode::SINGLE_THREADED,
	fake_image_serialization_processor.get());

	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;
	LayerTreeSettings settings;
	settings.use_compositor_animation_timelines = true;
	scoped_ptr<FakeImageSerializationProcessor>
	fake_image_serialization_processor =
	make_scoped_ptr(new FakeImageSerializationProcessor);
	scoped_ptr<FakeLayerTreeHost> host =
	FakeLayerTreeHost::Create(&host_client, &task_graph_runner, settings,
	CompositorMode::SINGLE_THREADED,
	fake_image_serialization_processor.get());
	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) {
	ContentLayerClient* client = EmptyContentLayerClient::GetInstance();
	scoped_refptr<PictureLayer> layer =
	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();

	EXPECT_EQ(0, host->source_frame_number());
	host->CommitComplete();
	EXPECT_EQ(1, host->source_frame_number());

	layer->SetBounds(gfx::Size(0, 0));
	layer->SavePaintProperties();
	// Intentionally skipping Update since it would normally be skipped on
	// a layer with empty bounds.

	FakeImplTaskRunnerProvider impl_task_runner_provider;

	TestSharedBitmapManager shared_bitmap_manager;
	FakeLayerTreeHostImpl host_impl(LayerTreeSettingsForTesting(),
	&impl_task_runner_provider,
	&shared_bitmap_manager, &task_graph_runner);
	host_impl.CreatePendingTree();
	scoped_ptr<FakePictureLayerImpl> layer_impl =
	FakePictureLayerImpl::Create(host_impl.pending_tree(), 1);

	layer->PushPropertiesTo(layer_impl.get());
	EXPECT_FALSE(layer_impl->CanHaveTilings());
	EXPECT_TRUE(layer_impl->bounds() == gfx::Size(0, 0));
	EXPECT_EQ(gfx::Size(), layer_impl->raster_source()->GetSize());
	EXPECT_FALSE(layer_impl->raster_source()->HasRecordings());
	}

	TEST(PictureLayerTest, ClearVisibleRectWhenNoTiling) {
	gfx::Size layer_size(50, 50);
	FakeContentLayerClient client;
	client.set_bounds(layer_size);
	skia::RefPtr<SkImage> image = CreateDiscardableImage(layer_size);
	client.add_draw_image(image.get(), gfx::Point(), SkPaint());
	scoped_refptr<PictureLayer> layer =
	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();

	EXPECT_EQ(0, host->source_frame_number());
	host->CommitComplete();
	EXPECT_EQ(1, host->source_frame_number());

	layer->SavePaintProperties();
	layer->Update();

	FakeImplTaskRunnerProvider impl_task_runner_provider;

	TestSharedBitmapManager shared_bitmap_manager;
	scoped_ptr<OutputSurface> output_surface(FakeOutputSurface::Create3d());
	LayerTreeSettings layer_tree_settings = LayerTreeSettingsForTesting();
	layer_tree_settings.image_decode_tasks_enabled = true;
	FakeLayerTreeHostImpl host_impl(layer_tree_settings,
	&impl_task_runner_provider,
	&shared_bitmap_manager, &task_graph_runner);
	host_impl.SetVisible(true);
	EXPECT_TRUE(host_impl.InitializeRenderer(output_surface.get()));

	host_impl.CreatePendingTree();
	host_impl.pending_tree()->SetRootLayer(
	FakePictureLayerImpl::Create(host_impl.pending_tree(), 1));

	FakePictureLayerImpl* layer_impl = static_cast<FakePictureLayerImpl*>(
	host_impl.pending_tree()->root_layer());

	layer->PushPropertiesTo(layer_impl);

	host->CommitComplete();
	EXPECT_EQ(2, host->source_frame_number());

	host_impl.ActivateSyncTree();

	// By updating the draw proprties on the active tree, we will set the viewport
	// rect for tile priorities to something non-empty.
	const bool can_use_lcd_text = false;
	host_impl.active_tree()->property_trees()->needs_rebuild = true;
	host_impl.active_tree()->BuildPropertyTreesForTesting();
	host_impl.active_tree()->UpdateDrawProperties(can_use_lcd_text);

	layer->SetBounds(gfx::Size(11, 11));
	layer->SavePaintProperties();

	host_impl.CreatePendingTree();
	layer_impl = static_cast<FakePictureLayerImpl*>(
	host_impl.pending_tree()->root_layer());

	// We should now have invalid contents and should therefore clear the
	// recording source.
	layer->PushPropertiesTo(layer_impl);

	host_impl.ActivateSyncTree();

	scoped_ptr<RenderPass> render_pass = RenderPass::Create();
	AppendQuadsData data;
	host_impl.active_tree()->root_layer()->WillDraw(DRAW_MODE_SOFTWARE, nullptr);
	host_impl.active_tree()->root_layer()->AppendQuads(render_pass.get(), &data);
	host_impl.active_tree()->root_layer()->DidDraw(nullptr);
	}

	TEST(PictureLayerTest, SuitableForGpuRasterization) {
	scoped_ptr<FakeDisplayListRecordingSource> recording_source_owned(
	new FakeDisplayListRecordingSource);
	FakeDisplayListRecordingSource* recording_source =
	recording_source_owned.get();

	ContentLayerClient* client = EmptyContentLayerClient::GetInstance();
	scoped_refptr<FakePictureLayer> layer =
	FakePictureLayer::CreateWithRecordingSource(
	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,
	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;

	ContentLayerClient* client = EmptyContentLayerClient::GetInstance();
	scoped_refptr<FakePictureLayer> layer =
	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);
	host_client1.SetLayerTreeHost(host1.get());

	params.client = &host_client2;
	scoped_ptr<LayerTreeHost> host2 =
	LayerTreeHost::CreateSingleThreaded(&host_client2, &params);
	host2->SetVisible(true);
	host_client2.SetLayerTreeHost(host2.get());

	// The PictureLayer is put in one LayerTreeHost.
	host1->SetRootLayer(layer);
	// Do a main frame, record the picture layers.
	EXPECT_EQ(0, layer->update_count());
	layer->SetNeedsDisplay();
	host1->Composite(base::TimeTicks::Now());
	EXPECT_EQ(1, layer->update_count());
	EXPECT_EQ(1, host1->source_frame_number());

	// The source frame number in \|host1\| is now higher than host2.
	layer->SetNeedsDisplay();
	host1->Composite(base::TimeTicks::Now());
	EXPECT_EQ(2, layer->update_count());
	EXPECT_EQ(2, host1->source_frame_number());

	// Then moved to another LayerTreeHost.
	host1->SetRootLayer(nullptr);
	host2->SetRootLayer(layer);

	// 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