cc/raster/raster_buffer_provider_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/raster/raster_buffer_provider.h"

 #include <stddef.h>
 #include <stdint.h>

 #include <algorithm>
 #include <limits>
 #include <vector>

 #include "base/cancelable_callback.h"
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "cc/base/unique_notifier.h"
 #include "cc/raster/bitmap_raster_buffer_provider.h"
 #include "cc/raster/gpu_raster_buffer_provider.h"
 #include "cc/raster/one_copy_raster_buffer_provider.h"
 #include "cc/raster/synchronous_task_graph_runner.h"
 #include "cc/raster/zero_copy_raster_buffer_provider.h"
 #include "cc/resources/platform_color.h"
 #include "cc/resources/resource_pool.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"
 #include "cc/test/fake_raster_source.h"
 #include "cc/test/fake_resource_provider.h"
 #include "cc/test/test_gpu_memory_buffer_manager.h"
 #include "cc/test/test_shared_bitmap_manager.h"
 #include "cc/test/test_web_graphics_context_3d.h"
 #include "cc/tiles/tile_task_manager.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "testing/gtest/include/gtest/gtest.h"

 namespace cc {
 namespace {

 const size_t kMaxBytesPerCopyOperation = 1000U;
 const size_t kMaxStagingBuffers = 32U;

 enum RasterBufferProviderType {
   RASTER_BUFFER_PROVIDER_TYPE_ZERO_COPY,
   RASTER_BUFFER_PROVIDER_TYPE_ONE_COPY,
   RASTER_BUFFER_PROVIDER_TYPE_GPU,
   RASTER_BUFFER_PROVIDER_TYPE_BITMAP
 };

 class TestRasterTaskCompletionHandler {
  public:
   virtual void OnRasterTaskCompleted(
       std::unique_ptr<RasterBuffer> raster_buffer,
       unsigned id,
       bool was_canceled) = 0;
 };

 class TestRasterTaskImpl : public TileTask {
  public:
   TestRasterTaskImpl(TestRasterTaskCompletionHandler* completion_handler,
                      std::unique_ptr<ScopedResource> resource,
                      unsigned id,
                      std::unique_ptr<RasterBuffer> raster_buffer,
                      TileTask::Vector* dependencies)
       : TileTask(true, dependencies),
         completion_handler_(completion_handler),
         resource_(std::move(resource)),
         id_(id),
         raster_buffer_(std::move(raster_buffer)),
         raster_source_(FakeRasterSource::CreateFilled(gfx::Size(1, 1))) {}

   // Overridden from Task:
   void RunOnWorkerThread() override {
     // Don't use the image hijack canvas for these tests, as they have no image
     // decode controller.
     RasterSource::PlaybackSettings settings;
     settings.use_image_hijack_canvas = false;

     uint64_t new_content_id = 0;
     raster_buffer_->Playback(raster_source_.get(), gfx::Rect(1, 1),
                              gfx::Rect(1, 1), new_content_id, 1.f, settings);
   }

   // Overridden from TileTask:
   void OnTaskCompleted() override {
     completion_handler_->OnRasterTaskCompleted(std::move(raster_buffer_), id_,
                                                state().IsCanceled());
   }

  protected:
   ~TestRasterTaskImpl() override {}

  private:
   TestRasterTaskCompletionHandler* completion_handler_;
   std::unique_ptr<ScopedResource> resource_;
   unsigned id_;
   std::unique_ptr<RasterBuffer> raster_buffer_;
   scoped_refptr<RasterSource> raster_source_;

   DISALLOW_COPY_AND_ASSIGN(TestRasterTaskImpl);
 };

 class BlockingTestRasterTaskImpl : public TestRasterTaskImpl {
  public:
   BlockingTestRasterTaskImpl(
       TestRasterTaskCompletionHandler* completion_handler,
       std::unique_ptr<ScopedResource> resource,
       unsigned id,
       std::unique_ptr<RasterBuffer> raster_buffer,
       base::Lock* lock,
       TileTask::Vector* dependencies)
       : TestRasterTaskImpl(completion_handler,
                            std::move(resource),
                            id,
                            std::move(raster_buffer),
                            dependencies),
         lock_(lock) {}

   // Overridden from Task:
   void RunOnWorkerThread() override {
     base::AutoLock lock(*lock_);
     TestRasterTaskImpl::RunOnWorkerThread();
   }

  protected:
   ~BlockingTestRasterTaskImpl() override {}

  private:
   base::Lock* lock_;

   DISALLOW_COPY_AND_ASSIGN(BlockingTestRasterTaskImpl);
 };

 class RasterBufferProviderTest
     : public TestRasterTaskCompletionHandler,
       public testing::TestWithParam<RasterBufferProviderType> {
  public:
   struct RasterTaskResult {
     unsigned id;
     bool canceled;
   };

   typedef std::vector<scoped_refptr<TileTask>> RasterTaskVector;

   enum NamedTaskSet { REQUIRED_FOR_ACTIVATION, REQUIRED_FOR_DRAW, ALL };

   RasterBufferProviderTest()
       : context_provider_(TestContextProvider::Create()),
         worker_context_provider_(TestContextProvider::CreateWorker()),
         all_tile_tasks_finished_(
             base::ThreadTaskRunnerHandle::Get().get(),
             base::Bind(&RasterBufferProviderTest::AllTileTasksFinished,
                        base::Unretained(this))),
         timeout_seconds_(5),
         timed_out_(false) {}

   // Overridden from testing::Test:
   void SetUp() override {
     switch (GetParam()) {
       case RASTER_BUFFER_PROVIDER_TYPE_ZERO_COPY:
         Create3dOutputSurfaceAndResourceProvider();
         raster_buffer_provider_ = ZeroCopyRasterBufferProvider::Create(
             resource_provider_.get(), PlatformColor::BestTextureFormat());
         break;
       case RASTER_BUFFER_PROVIDER_TYPE_ONE_COPY:
         Create3dOutputSurfaceAndResourceProvider();
         raster_buffer_provider_ = base::MakeUnique<OneCopyRasterBufferProvider>(
             base::ThreadTaskRunnerHandle::Get().get(), context_provider_.get(),
             worker_context_provider_.get(), resource_provider_.get(),
             kMaxBytesPerCopyOperation, false, kMaxStagingBuffers,
             PlatformColor::BestTextureFormat(), false);
         break;
       case RASTER_BUFFER_PROVIDER_TYPE_GPU:
         Create3dOutputSurfaceAndResourceProvider();
         raster_buffer_provider_ = base::MakeUnique<GpuRasterBufferProvider>(
             context_provider_.get(), worker_context_provider_.get(),
             resource_provider_.get(), false, 0, false);
         break;
       case RASTER_BUFFER_PROVIDER_TYPE_BITMAP:
         CreateSoftwareOutputSurfaceAndResourceProvider();
         raster_buffer_provider_ =
             BitmapRasterBufferProvider::Create(resource_provider_.get());
         break;
     }

     DCHECK(raster_buffer_provider_);

     tile_task_manager_ = TileTaskManagerImpl::Create(&task_graph_runner_);
   }

   void TearDown() override {
     tile_task_manager_->Shutdown();
     tile_task_manager_->CheckForCompletedTasks();

     raster_buffer_provider_->Shutdown();
   }

   void AllTileTasksFinished() {
     tile_task_manager_->CheckForCompletedTasks();
     base::MessageLoop::current()->QuitWhenIdle();
   }

   void RunMessageLoopUntilAllTasksHaveCompleted() {
     task_graph_runner_.RunUntilIdle();
     tile_task_manager_->CheckForCompletedTasks();
   }

   void ScheduleTasks() {
     graph_.Reset();

     size_t priority = 0;

     for (RasterTaskVector::const_iterator it = tasks_.begin();
          it != tasks_.end(); ++it) {
       graph_.nodes.emplace_back(it->get(), 0 /* group */, priority++,
                                 0 /* dependencies */);
     }

     raster_buffer_provider_->OrderingBarrier();
     tile_task_manager_->ScheduleTasks(&graph_);
   }

   void AppendTask(unsigned id, const gfx::Size& size) {
     std::unique_ptr<ScopedResource> resource(
         ScopedResource::Create(resource_provider_.get()));
     resource->Allocate(size, ResourceProvider::TEXTURE_HINT_IMMUTABLE,
                        RGBA_8888, gfx::ColorSpace());

     // The raster buffer has no tile ids associated with it for partial update,
     // so doesn't need to provide a valid dirty rect.
     std::unique_ptr<RasterBuffer> raster_buffer =
         raster_buffer_provider_->AcquireBufferForRaster(resource.get(), 0, 0);
     TileTask::Vector empty;
     tasks_.push_back(new TestRasterTaskImpl(this, std::move(resource), id,
                                             std::move(raster_buffer), &empty));
   }

   void AppendTask(unsigned id) { AppendTask(id, gfx::Size(1, 1)); }

   void AppendBlockingTask(unsigned id, base::Lock* lock) {
     const gfx::Size size(1, 1);

     std::unique_ptr<ScopedResource> resource(
         ScopedResource::Create(resource_provider_.get()));
     resource->Allocate(size, ResourceProvider::TEXTURE_HINT_IMMUTABLE,
                        RGBA_8888, gfx::ColorSpace());

     std::unique_ptr<RasterBuffer> raster_buffer =
         raster_buffer_provider_->AcquireBufferForRaster(resource.get(), 0, 0);
     TileTask::Vector empty;
     tasks_.push_back(new BlockingTestRasterTaskImpl(
         this, std::move(resource), id, std::move(raster_buffer), lock, &empty));
   }

   const std::vector<RasterTaskResult>& completed_tasks() const {
     return completed_tasks_;
   }

   void LoseContext(ContextProvider* context_provider) {
     if (!context_provider)
       return;
     context_provider->ContextGL()->LoseContextCHROMIUM(
         GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
     context_provider->ContextGL()->Flush();
   }

   void OnRasterTaskCompleted(std::unique_ptr<RasterBuffer> raster_buffer,
                              unsigned id,
                              bool was_canceled) override {
     raster_buffer_provider_->ReleaseBufferForRaster(std::move(raster_buffer));
     RasterTaskResult result;
     result.id = id;
     result.canceled = was_canceled;
     completed_tasks_.push_back(result);
   }

  private:
   void Create3dOutputSurfaceAndResourceProvider() {
     output_surface_ = FakeOutputSurface::Create3d(context_provider_,
                                                   worker_context_provider_);
     CHECK(output_surface_->BindToClient(&output_surface_client_));
     TestWebGraphicsContext3D* context3d = context_provider_->TestContext3d();
     context3d->set_support_sync_query(true);
     resource_provider_ = FakeResourceProvider::Create(
         output_surface_.get(), nullptr, &gpu_memory_buffer_manager_);
   }

   void CreateSoftwareOutputSurfaceAndResourceProvider() {
     output_surface_ = FakeOutputSurface::CreateSoftware(
         base::WrapUnique(new SoftwareOutputDevice));
     CHECK(output_surface_->BindToClient(&output_surface_client_));
     resource_provider_ = FakeResourceProvider::Create(
         output_surface_.get(), &shared_bitmap_manager_, nullptr);
   }

   void OnTimeout() {
     timed_out_ = true;
     base::MessageLoop::current()->QuitWhenIdle();
   }

  protected:
   scoped_refptr<TestContextProvider> context_provider_;
   scoped_refptr<TestContextProvider> worker_context_provider_;
   FakeOutputSurfaceClient output_surface_client_;
   std::unique_ptr<FakeOutputSurface> output_surface_;
   std::unique_ptr<ResourceProvider> resource_provider_;
   std::unique_ptr<TileTaskManager> tile_task_manager_;
   std::unique_ptr<RasterBufferProvider> raster_buffer_provider_;
   TestGpuMemoryBufferManager gpu_memory_buffer_manager_;
   TestSharedBitmapManager shared_bitmap_manager_;
   SynchronousTaskGraphRunner task_graph_runner_;
   base::CancelableClosure timeout_;
   UniqueNotifier all_tile_tasks_finished_;
   int timeout_seconds_;
   bool timed_out_;
   RasterTaskVector tasks_;
   std::vector<RasterTaskResult> completed_tasks_;
   TaskGraph graph_;
 };

 TEST_P(RasterBufferProviderTest, Basic) {
   AppendTask(0u);
   AppendTask(1u);
   ScheduleTasks();

   RunMessageLoopUntilAllTasksHaveCompleted();

   ASSERT_EQ(2u, completed_tasks().size());
   EXPECT_FALSE(completed_tasks()[0].canceled);
   EXPECT_FALSE(completed_tasks()[1].canceled);
 }

 TEST_P(RasterBufferProviderTest, FailedMapResource) {
   if (GetParam() == RASTER_BUFFER_PROVIDER_TYPE_BITMAP)
     return;

   TestWebGraphicsContext3D* context3d = context_provider_->TestContext3d();
   context3d->set_times_map_buffer_chromium_succeeds(0);
   AppendTask(0u);
   ScheduleTasks();

   RunMessageLoopUntilAllTasksHaveCompleted();

   ASSERT_EQ(1u, completed_tasks().size());
   EXPECT_FALSE(completed_tasks()[0].canceled);
 }

 // This test checks that replacing a pending raster task with another does
 // not prevent the DidFinishRunningTileTasks notification from being sent.
 TEST_P(RasterBufferProviderTest, FalseThrottling) {
   base::Lock lock;

   // Schedule a task that is prevented from completing with a lock.
   lock.Acquire();
   AppendBlockingTask(0u, &lock);
   ScheduleTasks();

   // Schedule another task to replace the still-pending task. Because the old
   // task is not a throttled task in the new task set, it should not prevent
   // DidFinishRunningTileTasks from getting signaled.
   RasterTaskVector tasks;
   tasks.swap(tasks_);
   AppendTask(1u);
   ScheduleTasks();

   // Unblock the first task to allow the second task to complete.
   lock.Release();

   RunMessageLoopUntilAllTasksHaveCompleted();
 }

 TEST_P(RasterBufferProviderTest, LostContext) {
   LoseContext(output_surface_->context_provider());
   LoseContext(output_surface_->worker_context_provider());

   AppendTask(0u);
   AppendTask(1u);
   ScheduleTasks();

   RunMessageLoopUntilAllTasksHaveCompleted();

   ASSERT_EQ(2u, completed_tasks().size());
   EXPECT_FALSE(completed_tasks()[0].canceled);
   EXPECT_FALSE(completed_tasks()[1].canceled);
 }

 INSTANTIATE_TEST_CASE_P(RasterBufferProviderTests,
                         RasterBufferProviderTest,
                         ::testing::Values(RASTER_BUFFER_PROVIDER_TYPE_ZERO_COPY,
                                           RASTER_BUFFER_PROVIDER_TYPE_ONE_COPY,
                                           RASTER_BUFFER_PROVIDER_TYPE_GPU,
                                           RASTER_BUFFER_PROVIDER_TYPE_BITMAP));

 }  // 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/raster/raster_buffer_provider.h"

	#include <stddef.h>
	#include <stdint.h>

	#include <algorithm>
	#include <limits>
	#include <vector>

	#include "base/cancelable_callback.h"
	#include "base/location.h"
	#include "base/macros.h"
	#include "base/memory/ptr_util.h"
	#include "base/single_thread_task_runner.h"
	#include "base/threading/thread_task_runner_handle.h"
	#include "cc/base/unique_notifier.h"
	#include "cc/raster/bitmap_raster_buffer_provider.h"
	#include "cc/raster/gpu_raster_buffer_provider.h"
	#include "cc/raster/one_copy_raster_buffer_provider.h"
	#include "cc/raster/synchronous_task_graph_runner.h"
	#include "cc/raster/zero_copy_raster_buffer_provider.h"
	#include "cc/resources/platform_color.h"
	#include "cc/resources/resource_pool.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"
	#include "cc/test/fake_raster_source.h"
	#include "cc/test/fake_resource_provider.h"
	#include "cc/test/test_gpu_memory_buffer_manager.h"
	#include "cc/test/test_shared_bitmap_manager.h"
	#include "cc/test/test_web_graphics_context_3d.h"
	#include "cc/tiles/tile_task_manager.h"
	#include "gpu/GLES2/gl2extchromium.h"
	#include "testing/gtest/include/gtest/gtest.h"

	namespace cc {
	namespace {

	const size_t kMaxBytesPerCopyOperation = 1000U;
	const size_t kMaxStagingBuffers = 32U;

	enum RasterBufferProviderType {
	RASTER_BUFFER_PROVIDER_TYPE_ZERO_COPY,
	RASTER_BUFFER_PROVIDER_TYPE_ONE_COPY,
	RASTER_BUFFER_PROVIDER_TYPE_GPU,
	RASTER_BUFFER_PROVIDER_TYPE_BITMAP
	};

	class TestRasterTaskCompletionHandler {
	public:
	virtual void OnRasterTaskCompleted(
	std::unique_ptr<RasterBuffer> raster_buffer,
	unsigned id,
	bool was_canceled) = 0;
	};

	class TestRasterTaskImpl : public TileTask {
	public:
	TestRasterTaskImpl(TestRasterTaskCompletionHandler* completion_handler,
	std::unique_ptr<ScopedResource> resource,
	unsigned id,
	std::unique_ptr<RasterBuffer> raster_buffer,
	TileTask::Vector* dependencies)
	: TileTask(true, dependencies),
	completion_handler_(completion_handler),
	resource_(std::move(resource)),
	id_(id),
	raster_buffer_(std::move(raster_buffer)),
	raster_source_(FakeRasterSource::CreateFilled(gfx::Size(1, 1))) {}

	// Overridden from Task:
	void RunOnWorkerThread() override {
	// Don't use the image hijack canvas for these tests, as they have no image
	// decode controller.
	RasterSource::PlaybackSettings settings;
	settings.use_image_hijack_canvas = false;

	uint64_t new_content_id = 0;
	raster_buffer_->Playback(raster_source_.get(), gfx::Rect(1, 1),
	gfx::Rect(1, 1), new_content_id, 1.f, settings);
	}

	// Overridden from TileTask:
	void OnTaskCompleted() override {
	completion_handler_->OnRasterTaskCompleted(std::move(raster_buffer_), id_,
	state().IsCanceled());
	}

	protected:
	~TestRasterTaskImpl() override {}

	private:
	TestRasterTaskCompletionHandler* completion_handler_;
	std::unique_ptr<ScopedResource> resource_;
	unsigned id_;
	std::unique_ptr<RasterBuffer> raster_buffer_;
	scoped_refptr<RasterSource> raster_source_;

	DISALLOW_COPY_AND_ASSIGN(TestRasterTaskImpl);
	};

	class BlockingTestRasterTaskImpl : public TestRasterTaskImpl {
	public:
	BlockingTestRasterTaskImpl(
	TestRasterTaskCompletionHandler* completion_handler,
	std::unique_ptr<ScopedResource> resource,
	unsigned id,
	std::unique_ptr<RasterBuffer> raster_buffer,
	base::Lock* lock,
	TileTask::Vector* dependencies)
	: TestRasterTaskImpl(completion_handler,
	std::move(resource),
	id,
	std::move(raster_buffer),
	dependencies),
	lock_(lock) {}

	// Overridden from Task:
	void RunOnWorkerThread() override {
	base::AutoLock lock(*lock_);
	TestRasterTaskImpl::RunOnWorkerThread();
	}

	protected:
	~BlockingTestRasterTaskImpl() override {}

	private:
	base::Lock* lock_;

	DISALLOW_COPY_AND_ASSIGN(BlockingTestRasterTaskImpl);
	};

	class RasterBufferProviderTest
	: public TestRasterTaskCompletionHandler,
	public testing::TestWithParam<RasterBufferProviderType> {
	public:
	struct RasterTaskResult {
	unsigned id;
	bool canceled;
	};

	typedef std::vector<scoped_refptr<TileTask>> RasterTaskVector;

	enum NamedTaskSet { REQUIRED_FOR_ACTIVATION, REQUIRED_FOR_DRAW, ALL };

	RasterBufferProviderTest()
	: context_provider_(TestContextProvider::Create()),
	worker_context_provider_(TestContextProvider::CreateWorker()),
	all_tile_tasks_finished_(
	base::ThreadTaskRunnerHandle::Get().get(),
	base::Bind(&RasterBufferProviderTest::AllTileTasksFinished,
	base::Unretained(this))),
	timeout_seconds_(5),
	timed_out_(false) {}

	// Overridden from testing::Test:
	void SetUp() override {
	switch (GetParam()) {
	case RASTER_BUFFER_PROVIDER_TYPE_ZERO_COPY:
	Create3dOutputSurfaceAndResourceProvider();
	raster_buffer_provider_ = ZeroCopyRasterBufferProvider::Create(
	resource_provider_.get(), PlatformColor::BestTextureFormat());
	break;
	case RASTER_BUFFER_PROVIDER_TYPE_ONE_COPY:
	Create3dOutputSurfaceAndResourceProvider();
	raster_buffer_provider_ = base::MakeUnique<OneCopyRasterBufferProvider>(
	base::ThreadTaskRunnerHandle::Get().get(), context_provider_.get(),
	worker_context_provider_.get(), resource_provider_.get(),
	kMaxBytesPerCopyOperation, false, kMaxStagingBuffers,
	PlatformColor::BestTextureFormat(), false);
	break;
	case RASTER_BUFFER_PROVIDER_TYPE_GPU:
	Create3dOutputSurfaceAndResourceProvider();
	raster_buffer_provider_ = base::MakeUnique<GpuRasterBufferProvider>(
	context_provider_.get(), worker_context_provider_.get(),
	resource_provider_.get(), false, 0, false);
	break;
	case RASTER_BUFFER_PROVIDER_TYPE_BITMAP:
	CreateSoftwareOutputSurfaceAndResourceProvider();
	raster_buffer_provider_ =
	BitmapRasterBufferProvider::Create(resource_provider_.get());
	break;
	}

	DCHECK(raster_buffer_provider_);

	tile_task_manager_ = TileTaskManagerImpl::Create(&task_graph_runner_);
	}

	void TearDown() override {
	tile_task_manager_->Shutdown();
	tile_task_manager_->CheckForCompletedTasks();

	raster_buffer_provider_->Shutdown();
	}

	void AllTileTasksFinished() {
	tile_task_manager_->CheckForCompletedTasks();
	base::MessageLoop::current()->QuitWhenIdle();
	}

	void RunMessageLoopUntilAllTasksHaveCompleted() {
	task_graph_runner_.RunUntilIdle();
	tile_task_manager_->CheckForCompletedTasks();
	}

	void ScheduleTasks() {
	graph_.Reset();

	size_t priority = 0;

	for (RasterTaskVector::const_iterator it = tasks_.begin();
	it != tasks_.end(); ++it) {
	graph_.nodes.emplace_back(it->get(), 0 /* group */, priority++,
	0 /* dependencies */);
	}

	raster_buffer_provider_->OrderingBarrier();
	tile_task_manager_->ScheduleTasks(&graph_);
	}

	void AppendTask(unsigned id, const gfx::Size& size) {
	std::unique_ptr<ScopedResource> resource(
	ScopedResource::Create(resource_provider_.get()));
	resource->Allocate(size, ResourceProvider::TEXTURE_HINT_IMMUTABLE,
	RGBA_8888, gfx::ColorSpace());

	// The raster buffer has no tile ids associated with it for partial update,
	// so doesn't need to provide a valid dirty rect.
	std::unique_ptr<RasterBuffer> raster_buffer =
	raster_buffer_provider_->AcquireBufferForRaster(resource.get(), 0, 0);
	TileTask::Vector empty;
	tasks_.push_back(new TestRasterTaskImpl(this, std::move(resource), id,
	std::move(raster_buffer), &empty));
	}

	void AppendTask(unsigned id) { AppendTask(id, gfx::Size(1, 1)); }

	void AppendBlockingTask(unsigned id, base::Lock* lock) {
	const gfx::Size size(1, 1);

	std::unique_ptr<ScopedResource> resource(
	ScopedResource::Create(resource_provider_.get()));
	resource->Allocate(size, ResourceProvider::TEXTURE_HINT_IMMUTABLE,
	RGBA_8888, gfx::ColorSpace());

	std::unique_ptr<RasterBuffer> raster_buffer =
	raster_buffer_provider_->AcquireBufferForRaster(resource.get(), 0, 0);
	TileTask::Vector empty;
	tasks_.push_back(new BlockingTestRasterTaskImpl(
	this, std::move(resource), id, std::move(raster_buffer), lock, &empty));
	}

	const std::vector<RasterTaskResult>& completed_tasks() const {
	return completed_tasks_;
	}

	void LoseContext(ContextProvider* context_provider) {
	if (!context_provider)
	return;
	context_provider->ContextGL()->LoseContextCHROMIUM(
	GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
	context_provider->ContextGL()->Flush();
	}

	void OnRasterTaskCompleted(std::unique_ptr<RasterBuffer> raster_buffer,
	unsigned id,
	bool was_canceled) override {
	raster_buffer_provider_->ReleaseBufferForRaster(std::move(raster_buffer));
	RasterTaskResult result;
	result.id = id;
	result.canceled = was_canceled;
	completed_tasks_.push_back(result);
	}

	private:
	void Create3dOutputSurfaceAndResourceProvider() {
	output_surface_ = FakeOutputSurface::Create3d(context_provider_,
	worker_context_provider_);
	CHECK(output_surface_->BindToClient(&output_surface_client_));
	TestWebGraphicsContext3D* context3d = context_provider_->TestContext3d();
	context3d->set_support_sync_query(true);
	resource_provider_ = FakeResourceProvider::Create(
	output_surface_.get(), nullptr, &gpu_memory_buffer_manager_);
	}

	void CreateSoftwareOutputSurfaceAndResourceProvider() {
	output_surface_ = FakeOutputSurface::CreateSoftware(
	base::WrapUnique(new SoftwareOutputDevice));
	CHECK(output_surface_->BindToClient(&output_surface_client_));
	resource_provider_ = FakeResourceProvider::Create(
	output_surface_.get(), &shared_bitmap_manager_, nullptr);
	}

	void OnTimeout() {
	timed_out_ = true;
	base::MessageLoop::current()->QuitWhenIdle();
	}

	protected:
	scoped_refptr<TestContextProvider> context_provider_;
	scoped_refptr<TestContextProvider> worker_context_provider_;
	FakeOutputSurfaceClient output_surface_client_;
	std::unique_ptr<FakeOutputSurface> output_surface_;
	std::unique_ptr<ResourceProvider> resource_provider_;
	std::unique_ptr<TileTaskManager> tile_task_manager_;
	std::unique_ptr<RasterBufferProvider> raster_buffer_provider_;
	TestGpuMemoryBufferManager gpu_memory_buffer_manager_;
	TestSharedBitmapManager shared_bitmap_manager_;
	SynchronousTaskGraphRunner task_graph_runner_;
	base::CancelableClosure timeout_;
	UniqueNotifier all_tile_tasks_finished_;
	int timeout_seconds_;
	bool timed_out_;
	RasterTaskVector tasks_;
	std::vector<RasterTaskResult> completed_tasks_;
	TaskGraph graph_;
	};

	TEST_P(RasterBufferProviderTest, Basic) {
	AppendTask(0u);
	AppendTask(1u);
	ScheduleTasks();

	RunMessageLoopUntilAllTasksHaveCompleted();

	ASSERT_EQ(2u, completed_tasks().size());
	EXPECT_FALSE(completed_tasks()[0].canceled);
	EXPECT_FALSE(completed_tasks()[1].canceled);
	}

	TEST_P(RasterBufferProviderTest, FailedMapResource) {
	if (GetParam() == RASTER_BUFFER_PROVIDER_TYPE_BITMAP)
	return;

	TestWebGraphicsContext3D* context3d = context_provider_->TestContext3d();
	context3d->set_times_map_buffer_chromium_succeeds(0);
	AppendTask(0u);
	ScheduleTasks();

	RunMessageLoopUntilAllTasksHaveCompleted();

	ASSERT_EQ(1u, completed_tasks().size());
	EXPECT_FALSE(completed_tasks()[0].canceled);
	}

	// This test checks that replacing a pending raster task with another does
	// not prevent the DidFinishRunningTileTasks notification from being sent.
	TEST_P(RasterBufferProviderTest, FalseThrottling) {
	base::Lock lock;

	// Schedule a task that is prevented from completing with a lock.
	lock.Acquire();
	AppendBlockingTask(0u, &lock);
	ScheduleTasks();

	// Schedule another task to replace the still-pending task. Because the old
	// task is not a throttled task in the new task set, it should not prevent
	// DidFinishRunningTileTasks from getting signaled.
	RasterTaskVector tasks;
	tasks.swap(tasks_);
	AppendTask(1u);
	ScheduleTasks();

	// Unblock the first task to allow the second task to complete.
	lock.Release();

	RunMessageLoopUntilAllTasksHaveCompleted();
	}

	TEST_P(RasterBufferProviderTest, LostContext) {
	LoseContext(output_surface_->context_provider());
	LoseContext(output_surface_->worker_context_provider());

	AppendTask(0u);
	AppendTask(1u);
	ScheduleTasks();

	RunMessageLoopUntilAllTasksHaveCompleted();

	ASSERT_EQ(2u, completed_tasks().size());
	EXPECT_FALSE(completed_tasks()[0].canceled);
	EXPECT_FALSE(completed_tasks()[1].canceled);
	}

	INSTANTIATE_TEST_CASE_P(RasterBufferProviderTests,
	RasterBufferProviderTest,
	::testing::Values(RASTER_BUFFER_PROVIDER_TYPE_ZERO_COPY,
	RASTER_BUFFER_PROVIDER_TYPE_ONE_COPY,
	RASTER_BUFFER_PROVIDER_TYPE_GPU,
	RASTER_BUFFER_PROVIDER_TYPE_BITMAP));

	} // namespace
	} // namespace cc