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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 GPU_IPC_SERVICE_GPU_CHANNEL_MANAGER_H_
#define GPU_IPC_SERVICE_GPU_CHANNEL_MANAGER_H_
#include <stdint.h>
#include <deque>
#include <memory>
#include <string>
#include <vector>
#include "base/containers/scoped_ptr_hash_map.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "build/build_config.h"
#include "gpu/command_buffer/common/constants.h"
#include "gpu/config/gpu_driver_bug_workarounds.h"
#include "gpu/gpu_export.h"
#include "gpu/ipc/service/gpu_memory_manager.h"
#include "ui/gfx/gpu_memory_buffer.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gl/gl_surface.h"
#include "url/gurl.h"
namespace base {
class WaitableEvent;
}
namespace gfx {
class GLShareGroup;
}
namespace gpu {
struct GpuPreferences;
class PreemptionFlag;
class SyncPointClient;
class SyncPointManager;
struct SyncToken;
namespace gles2 {
class FramebufferCompletenessCache;
class MailboxManager;
class ProgramCache;
class ShaderTranslatorCache;
}
}
namespace IPC {
struct ChannelHandle;
}
namespace gpu {
class GpuChannel;
class GpuChannelManagerDelegate;
class GpuMemoryBufferFactory;
class GpuWatchdog;
// A GpuChannelManager is a thread responsible for issuing rendering commands
// managing the lifetimes of GPU channels and forwarding IPC requests from the
// browser process to them based on the corresponding renderer ID.
class GPU_EXPORT GpuChannelManager {
public:
GpuChannelManager(const GpuPreferences& gpu_preferences,
GpuChannelManagerDelegate* delegate,
GpuWatchdog* watchdog,
base::SingleThreadTaskRunner* task_runner,
base::SingleThreadTaskRunner* io_task_runner,
base::WaitableEvent* shutdown_event,
SyncPointManager* sync_point_manager,
GpuMemoryBufferFactory* gpu_memory_buffer_factory);
virtual ~GpuChannelManager();
GpuChannelManagerDelegate* delegate() const { return delegate_; }
IPC::ChannelHandle EstablishChannel(int client_id,
uint64_t client_tracing_id,
bool preempts,
bool allow_view_command_buffers,
bool allow_real_time_streams);
void PopulateShaderCache(const std::string& shader);
void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
int client_id,
const SyncToken& sync_token);
#if defined(OS_ANDROID)
void WakeUpGpu();
#endif
void DestroyAllChannels();
// Remove the channel for a particular renderer.
void RemoveChannel(int client_id);
void LoseAllContexts();
void MaybeExitOnContextLost();
const GpuPreferences& gpu_preferences() const {
return gpu_preferences_;
}
const GpuDriverBugWorkarounds& gpu_driver_bug_workarounds() const {
return gpu_driver_bug_workarounds_;
}
gles2::ProgramCache* program_cache();
gles2::ShaderTranslatorCache* shader_translator_cache();
gles2::FramebufferCompletenessCache* framebuffer_completeness_cache();
GpuMemoryManager* gpu_memory_manager() { return &gpu_memory_manager_; }
GpuChannel* LookupChannel(int32_t client_id) const;
gfx::GLSurface* GetDefaultOffscreenSurface();
GpuMemoryBufferFactory* gpu_memory_buffer_factory() {
return gpu_memory_buffer_factory_;
}
// Returns the maximum order number for unprocessed IPC messages across all
// channels.
uint32_t GetUnprocessedOrderNum() const;
// Returns the maximum order number for processed IPC messages across all
// channels.
uint32_t GetProcessedOrderNum() const;
#if defined(OS_ANDROID)
void DidAccessGpu();
#endif
bool is_exiting_for_lost_context() {
return exiting_for_lost_context_;
}
protected:
virtual std::unique_ptr<GpuChannel> CreateGpuChannel(
int client_id,
uint64_t client_tracing_id,
bool preempts,
bool allow_view_command_buffers,
bool allow_real_time_streams);
SyncPointManager* sync_point_manager() const {
return sync_point_manager_;
}
gfx::GLShareGroup* share_group() const { return share_group_.get(); }
gles2::MailboxManager* mailbox_manager() const {
return mailbox_manager_.get();
}
PreemptionFlag* preemption_flag() const {
return preemption_flag_.get();
}
scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
// These objects manage channels to individual renderer processes there is
// one channel for each renderer process that has connected to this GPU
// process.
base::ScopedPtrHashMap<int32_t, std::unique_ptr<GpuChannel>> gpu_channels_;
private:
void InternalDestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id, int client_id);
void InternalDestroyGpuMemoryBufferOnIO(gfx::GpuMemoryBufferId id,
int client_id);
#if defined(OS_ANDROID)
void ScheduleWakeUpGpu();
void DoWakeUpGpu();
#endif
const GpuPreferences& gpu_preferences_;
GpuDriverBugWorkarounds gpu_driver_bug_workarounds_;
GpuChannelManagerDelegate* const delegate_;
GpuWatchdog* watchdog_;
base::WaitableEvent* shutdown_event_;
scoped_refptr<gfx::GLShareGroup> share_group_;
scoped_refptr<gles2::MailboxManager> mailbox_manager_;
scoped_refptr<PreemptionFlag> preemption_flag_;
GpuMemoryManager gpu_memory_manager_;
// SyncPointManager guaranteed to outlive running MessageLoop.
SyncPointManager* sync_point_manager_;
std::unique_ptr<SyncPointClient> sync_point_client_waiter_;
std::unique_ptr<gles2::ProgramCache> program_cache_;
scoped_refptr<gles2::ShaderTranslatorCache> shader_translator_cache_;
scoped_refptr<gles2::FramebufferCompletenessCache>
framebuffer_completeness_cache_;
scoped_refptr<gfx::GLSurface> default_offscreen_surface_;
GpuMemoryBufferFactory* const gpu_memory_buffer_factory_;
#if defined(OS_ANDROID)
// Last time we know the GPU was powered on. Global for tracking across all
// transport surfaces.
base::TimeTicks last_gpu_access_time_;
base::TimeTicks begin_wake_up_time_;
#endif
// Set during intentional GPU process shutdown.
bool exiting_for_lost_context_;
// Member variables should appear before the WeakPtrFactory, to ensure
// that any WeakPtrs to Controller are invalidated before its members
// variable's destructors are executed, rendering them invalid.
base::WeakPtrFactory<GpuChannelManager> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(GpuChannelManager);
};
} // namespace gpu
#endif // GPU_IPC_SERVICE_GPU_CHANNEL_MANAGER_H_