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// Copyright (c) 2012 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.
#ifndef CONTENT_GPU_GPU_CHILD_THREAD_H_
#define CONTENT_GPU_GPU_CHILD_THREAD_H_
#include <stdint.h>
#include <memory>
#include <queue>
#include <string>
#include "base/callback.h"
#include "base/command_line.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/metrics/field_trial.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "content/child/child_thread_impl.h"
#include "content/common/associated_interface_registry_impl.h"
#include "gpu/command_buffer/service/gpu_preferences.h"
#include "gpu/config/gpu_feature_info.h"
#include "gpu/config/gpu_info.h"
#include "gpu/ipc/service/gpu_channel.h"
#include "gpu/ipc/service/gpu_channel_manager.h"
#include "gpu/ipc/service/gpu_channel_manager_delegate.h"
#include "gpu/ipc/service/gpu_config.h"
#include "gpu/ipc/service/x_util.h"
#include "media/base/android_overlay_mojo_factory.h"
#include "mojo/public/cpp/bindings/associated_binding_set.h"
#include "mojo/public/cpp/bindings/binding_set.h"
#include "services/service_manager/public/interfaces/service_factory.mojom.h"
#include "services/ui/gpu/gpu_service.h"
#include "services/ui/gpu/interfaces/gpu_main.mojom.h"
#include "ui/gfx/native_widget_types.h"
namespace gpu {
class GpuWatchdogThread;
}
namespace service_manager {
struct BindSourceInfo;
}
namespace content {
class GpuServiceFactory;
// The main thread of the GPU child process. There will only ever be one of
// these per process. It does process initialization and shutdown. It forwards
// IPC messages to gpu::GpuChannelManager, which is responsible for issuing
// rendering commands to the GPU.
class GpuChildThread : public ChildThreadImpl,
public ui::mojom::GpuMain,
public base::FieldTrialList::Observer {
public:
struct LogMessage {
int severity;
std::string header;
std::string message;
};
typedef std::vector<LogMessage> DeferredMessages;
GpuChildThread(std::unique_ptr<gpu::GpuWatchdogThread> gpu_watchdog_thread,
bool dead_on_arrival,
const gpu::GPUInfo& gpu_info,
const gpu::GpuFeatureInfo& gpu_feature_info,
DeferredMessages deferred_messages);
GpuChildThread(const InProcessChildThreadParams& params,
const gpu::GPUInfo& gpu_info,
const gpu::GpuFeatureInfo& gpu_feature_info);
~GpuChildThread() override;
void Init(const base::Time& process_start_time);
static GpuChildThread* instance() { return instance_; }
gpu::GpuChannelManager* gpu_channel_manager() {
return gpu_service_->gpu_channel_manager();
}
private:
GpuChildThread(const ChildThreadImpl::Options& options,
std::unique_ptr<gpu::GpuWatchdogThread> gpu_watchdog_thread,
bool dead_on_arrival,
bool in_browser_process,
const gpu::GPUInfo& gpu_info,
const gpu::GpuFeatureInfo& gpu_feature_info);
void CreateGpuMainService(ui::mojom::GpuMainAssociatedRequest request);
// ChildThreadImpl:.
bool Send(IPC::Message* msg) override;
// IPC::Listener implementation via ChildThreadImpl:
void OnAssociatedInterfaceRequest(
const std::string& name,
mojo::ScopedInterfaceEndpointHandle handle) override;
// ui::mojom::GpuMain:
void CreateGpuService(ui::mojom::GpuServiceRequest request,
ui::mojom::GpuHostPtr gpu_host,
const gpu::GpuPreferences& preferences,
mojo::ScopedSharedBufferHandle activity_flags) override;
void CreateFrameSinkManager(
cc::mojom::FrameSinkManagerRequest request,
cc::mojom::FrameSinkManagerClientPtr client) override;
// base::FieldTrialList::Observer:
void OnFieldTrialGroupFinalized(const std::string& trial_name,
const std::string& group_name) override;
void BindServiceFactoryRequest(
const service_manager::BindSourceInfo& source_info,
service_manager::mojom::ServiceFactoryRequest request);
#if defined(OS_ANDROID)
static std::unique_ptr<media::AndroidOverlay> CreateAndroidOverlay(
const base::UnguessableToken& routing_token,
media::AndroidOverlayConfig);
#endif
// Set this flag to true if a fatal error occurred before we receive the
// OnInitialize message, in which case we just declare ourselves DOA.
const bool dead_on_arrival_;
// Error messages collected in gpu_main() before the thread is created.
DeferredMessages deferred_messages_;
// Whether the GPU thread is running in the browser process.
const bool in_browser_process_;
// ServiceFactory for service_manager::Service hosting.
std::unique_ptr<GpuServiceFactory> service_factory_;
// Bindings to the service_manager::mojom::ServiceFactory impl.
mojo::BindingSet<service_manager::mojom::ServiceFactory>
service_factory_bindings_;
AssociatedInterfaceRegistryImpl associated_interfaces_;
std::unique_ptr<ui::GpuService> gpu_service_;
mojo::AssociatedBinding<ui::mojom::GpuMain> gpu_main_binding_;
// Holds a closure that releases pending interface requests on the IO thread.
base::Closure release_pending_requests_closure_;
base::WeakPtrFactory<GpuChildThread> weak_factory_;
static GpuChildThread* instance_;
DISALLOW_COPY_AND_ASSIGN(GpuChildThread);
};
} // namespace content
#endif // CONTENT_GPU_GPU_CHILD_THREAD_H_
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