content/gpu/gpu_child_thread.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_GPU_GPU_CHILD_THREAD_H_
   6 #define CONTENT_GPU_GPU_CHILD_THREAD_H_
   7
   8 #include <queue>
   9 #include <string>
  10
  11 #include "base/basictypes.h"
  12 #include "base/command_line.h"
  13 #include "base/memory/ref_counted.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "base/time/time.h"
  16 #include "build/build_config.h"
  17 #include "content/child/child_thread_impl.h"
  18 #include "content/common/gpu/gpu_channel.h"
  19 #include "content/common/gpu/gpu_channel_manager.h"
  20 #include "content/common/gpu/gpu_config.h"
  21 #include "content/common/gpu/x_util.h"
  22 #include "gpu/config/gpu_info.h"
  23 #include "ui/gfx/native_widget_types.h"
  24
  25 namespace gpu {
  26 class SyncPointManager;
  27 }
  28
  29 namespace sandbox {
  30 class TargetServices;
  31 }
  32
  33 namespace content {
  34 class GpuMemoryBufferFactory;
  35 class GpuWatchdogThread;
  36
  37 // The main thread of the GPU child process. There will only ever be one of
  38 // these per process. It does process initialization and shutdown. It forwards
  39 // IPC messages to GpuChannelManager, which is responsible for issuing rendering
  40 // commands to the GPU.
  41 class GpuChildThread : public ChildThreadImpl {
  42  public:
  43   typedef std::queue<IPC::Message*> DeferredMessages;
  44
  45   GpuChildThread(GpuWatchdogThread* gpu_watchdog_thread,
  46                  bool dead_on_arrival,
  47                  const gpu::GPUInfo& gpu_info,
  48                  const DeferredMessages& deferred_messages,
  49                  GpuMemoryBufferFactory* gpu_memory_buffer_factory,
  50                  gpu::SyncPointManager* sync_point_manager);
  51
  52   GpuChildThread(const InProcessChildThreadParams& params,
  53                  GpuMemoryBufferFactory* gpu_memory_buffer_factory,
  54                  gpu::SyncPointManager* sync_point_manager);
  55
  56   ~GpuChildThread() override;
  57
  58   static gfx::GpuMemoryBufferType GetGpuMemoryBufferFactoryType();
  59
  60   void Shutdown() override;
  61
  62   void Init(const base::Time& process_start_time);
  63   void StopWatchdog();
  64
  65   // ChildThread overrides.
  66   bool Send(IPC::Message* msg) override;
  67   bool OnControlMessageReceived(const IPC::Message& msg) override;
  68   bool OnMessageReceived(const IPC::Message& msg) override;
  69
  70  private:
  71   // Message handlers.
  72   void OnInitialize();
  73   void OnFinalize();
  74   void OnCollectGraphicsInfo();
  75   void OnGetVideoMemoryUsageStats();
  76   void OnSetVideoMemoryWindowCount(uint32 window_count);
  77
  78   void OnClean();
  79   void OnCrash();
  80   void OnHang();
  81   void OnDisableWatchdog();
  82   void OnGpuSwitched();
  83
  84 #if defined(USE_TCMALLOC)
  85   void OnGetGpuTcmalloc();
  86 #endif
  87
  88   // Set this flag to true if a fatal error occurred before we receive the
  89   // OnInitialize message, in which case we just declare ourselves DOA.
  90   bool dead_on_arrival_;
  91   base::Time process_start_time_;
  92   scoped_refptr<GpuWatchdogThread> watchdog_thread_;
  93
  94 #if defined(OS_WIN)
  95   // Windows specific client sandbox interface.
  96   sandbox::TargetServices* target_services_;
  97 #endif
  98
  99   // Non-owning.
 100   gpu::SyncPointManager* sync_point_manager_;
 101
 102   scoped_ptr<GpuChannelManager> gpu_channel_manager_;
 103
 104   // Information about the GPU, such as device and vendor ID.
 105   gpu::GPUInfo gpu_info_;
 106
 107   // Error messages collected in gpu_main() before the thread is created.
 108   DeferredMessages deferred_messages_;
 109
 110   // Whether the GPU thread is running in the browser process.
 111   bool in_browser_process_;
 112
 113   // The GpuMemoryBufferFactory instance used to allocate GpuMemoryBuffers.
 114   GpuMemoryBufferFactory* const gpu_memory_buffer_factory_;
 115
 116   DISALLOW_COPY_AND_ASSIGN(GpuChildThread);
 117 };
 118
 119 }  // namespace content
 120
 121 #endif  // CONTENT_GPU_GPU_CHILD_THREAD_H_