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 <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/command_line.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "base/time.h"
  15 #include "build/build_config.h"
  16 #include "content/common/child_thread.h"
  17 #include "content/common/gpu/gpu_channel.h"
  18 #include "content/common/gpu/gpu_channel_manager.h"
  19 #include "content/common/gpu/gpu_config.h"
  20 #include "content/common/gpu/x_util.h"
  21 #include "content/public/common/gpu_info.h"
  22 #include "ui/gfx/native_widget_types.h"
  23
  24 namespace sandbox {
  25 class TargetServices;
  26 }
  27
  28 class GpuWatchdogThread;
  29
  30 // The main thread of the GPU child process. There will only ever be one of
  31 // these per process. It does process initialization and shutdown. It forwards
  32 // IPC messages to GpuChannelManager, which is responsible for issuing rendering
  33 // commands to the GPU.
  34 class GpuChildThread : public ChildThread {
  35  public:
  36   explicit GpuChildThread(bool dead_on_arrival,
  37                           const content::GPUInfo& gpu_info);
  38
  39   // For single-process mode.
  40   explicit GpuChildThread(const std::string& channel_id);
  41
  42   virtual ~GpuChildThread();
  43
  44   void Init(const base::Time& process_start_time);
  45   void StopWatchdog();
  46
  47   // ChildThread overrides.
  48   virtual bool Send(IPC::Message* msg) OVERRIDE;
  49   virtual bool OnControlMessageReceived(const IPC::Message& msg) OVERRIDE;
  50
  51  private:
  52   // Message handlers.
  53   void OnInitialize();
  54   void OnCollectGraphicsInfo();
  55   void OnGetVideoMemoryUsageStats();
  56   void OnClean();
  57   void OnCrash();
  58   void OnHang();
  59
  60 #if defined(USE_TCMALLOC)
  61   void OnGetGpuTcmalloc();
  62 #endif
  63
  64 #if defined(OS_WIN)
  65   static void CollectDxDiagnostics(GpuChildThread* thread);
  66   static void SetDxDiagnostics(GpuChildThread* thread,
  67                                const content::DxDiagNode& node);
  68 #endif
  69
  70   // Set this flag to true if a fatal error occurred before we receive the
  71   // OnInitialize message, in which case we just declare ourselves DOA.
  72   bool dead_on_arrival_;
  73   base::Time process_start_time_;
  74   scoped_refptr<GpuWatchdogThread> watchdog_thread_;
  75
  76 #if defined(OS_WIN)
  77   // Windows specific client sandbox interface.
  78   sandbox::TargetServices* target_services_;
  79
  80   // Indicates whether DirectX Diagnostics collection is ongoing.
  81   bool collecting_dx_diagnostics_;
  82 #endif
  83
  84   scoped_ptr<GpuChannelManager> gpu_channel_manager_;
  85
  86   // Information about the GPU, such as device and vendor ID.
  87   content::GPUInfo gpu_info_;
  88
  89   DISALLOW_COPY_AND_ASSIGN(GpuChildThread);
  90 };
  91
  92 #endif  // CONTENT_GPU_GPU_CHILD_THREAD_H_