content/common/gpu/gpu_channel_manager.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_COMMON_GPU_GPU_CHANNEL_MANAGER_H_
   6 #define CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_
   7
   8 #include <deque>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/containers/scoped_ptr_hash_map.h"
  13 #include "base/memory/ref_counted.h"
  14 #include "base/memory/scoped_ptr.h"
  15 #include "base/memory/weak_ptr.h"
  16 #include "build/build_config.h"
  17 #include "content/common/content_export.h"
  18 #include "content/common/content_param_traits.h"
  19 #include "content/common/gpu/gpu_memory_manager.h"
  20 #include "ipc/ipc_listener.h"
  21 #include "ipc/ipc_sender.h"
  22 #include "ui/gfx/gpu_memory_buffer.h"
  23 #include "ui/gfx/native_widget_types.h"
  24 #include "ui/gl/gl_surface.h"
  25
  26 namespace base {
  27 class WaitableEvent;
  28 }
  29
  30 namespace gfx {
  31 class GLShareGroup;
  32 }
  33
  34 namespace gpu {
  35 class SyncPointManager;
  36 union ValueState;
  37 namespace gles2 {
  38 class MailboxManager;
  39 class ProgramCache;
  40 class ShaderTranslatorCache;
  41 }
  42 }
  43
  44 namespace IPC {
  45 class AttachmentBroker;
  46 struct ChannelHandle;
  47 class SyncChannel;
  48 }
  49
  50 struct GPUCreateCommandBufferConfig;
  51
  52 namespace content {
  53 class GpuChannel;
  54 class GpuMemoryBufferFactory;
  55 class GpuWatchdog;
  56 class MessageRouter;
  57
  58 // A GpuChannelManager is a thread responsible for issuing rendering commands
  59 // managing the lifetimes of GPU channels and forwarding IPC requests from the
  60 // browser process to them based on the corresponding renderer ID.
  61 class CONTENT_EXPORT GpuChannelManager : public IPC::Listener,
  62                           public IPC::Sender {
  63  public:
  64   // |broker| must outlive GpuChannelManager and any channels it creates.
  65   GpuChannelManager(MessageRouter* router,
  66                     GpuWatchdog* watchdog,
  67                     base::SingleThreadTaskRunner* io_task_runner,
  68                     base::WaitableEvent* shutdown_event,
  69                     IPC::SyncChannel* channel,
  70                     IPC::AttachmentBroker* broker,
  71                     gpu::SyncPointManager* sync_point_manager,
  72                     GpuMemoryBufferFactory* gpu_memory_buffer_factory);
  73   ~GpuChannelManager() override;
  74
  75   // Remove the channel for a particular renderer.
  76   void RemoveChannel(int client_id);
  77
  78   // Listener overrides.
  79   bool OnMessageReceived(const IPC::Message& msg) override;
  80
  81   // Sender overrides.
  82   bool Send(IPC::Message* msg) override;
  83
  84   bool HandleMessagesScheduled();
  85   uint64 MessagesProcessed();
  86
  87   void LoseAllContexts();
  88
  89   int GenerateRouteID();
  90   void AddRoute(int32 routing_id, IPC::Listener* listener);
  91   void RemoveRoute(int32 routing_id);
  92
  93   gpu::gles2::ProgramCache* program_cache();
  94   gpu::gles2::ShaderTranslatorCache* shader_translator_cache();
  95
  96   GpuMemoryManager* gpu_memory_manager() { return &gpu_memory_manager_; }
  97
  98   GpuChannel* LookupChannel(int32 client_id);
  99
 100   gpu::SyncPointManager* sync_point_manager() {
 101     return sync_point_manager_;
 102   }
 103
 104   gfx::GLSurface* GetDefaultOffscreenSurface();
 105
 106   GpuMemoryBufferFactory* gpu_memory_buffer_factory() {
 107     return gpu_memory_buffer_factory_;
 108   }
 109
 110  private:
 111   typedef base::ScopedPtrHashMap<int, scoped_ptr<GpuChannel>> GpuChannelMap;
 112
 113   // Message handlers.
 114   void OnEstablishChannel(int client_id,
 115                           bool share_context,
 116                           bool allow_future_sync_points);
 117   void OnCloseChannel(const IPC::ChannelHandle& channel_handle);
 118   void OnVisibilityChanged(
 119       int32 render_view_id, int32 client_id, bool visible);
 120   void OnCreateViewCommandBuffer(
 121       const gfx::GLSurfaceHandle& window,
 122       int32 render_view_id,
 123       int32 client_id,
 124       const GPUCreateCommandBufferConfig& init_params,
 125       int32 route_id);
 126   void OnLoadedShader(std::string shader);
 127   void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id, int client_id);
 128   void DestroyGpuMemoryBufferOnIO(gfx::GpuMemoryBufferId id, int client_id);
 129   void OnDestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
 130                                 int client_id,
 131                                 int32 sync_point);
 132
 133   void OnRelinquishResources();
 134   void OnResourcesRelinquished();
 135
 136   void OnUpdateValueState(int client_id,
 137                           unsigned int target,
 138                           const gpu::ValueState& state);
 139
 140   void OnLoseAllContexts();
 141   void CheckRelinquishGpuResources();
 142
 143   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
 144   base::WaitableEvent* shutdown_event_;
 145
 146   // Used to send and receive IPC messages from the browser process.
 147   MessageRouter* const router_;
 148
 149   // These objects manage channels to individual renderer processes there is
 150   // one channel for each renderer process that has connected to this GPU
 151   // process.
 152   GpuChannelMap gpu_channels_;
 153   scoped_refptr<gfx::GLShareGroup> share_group_;
 154   scoped_refptr<gpu::gles2::MailboxManager> mailbox_manager_;
 155   GpuMemoryManager gpu_memory_manager_;
 156   GpuWatchdog* watchdog_;
 157   // SyncPointManager guaranteed to outlive running MessageLoop.
 158   gpu::SyncPointManager* sync_point_manager_;
 159   scoped_ptr<gpu::gles2::ProgramCache> program_cache_;
 160   scoped_refptr<gpu::gles2::ShaderTranslatorCache> shader_translator_cache_;
 161   scoped_refptr<gfx::GLSurface> default_offscreen_surface_;
 162   GpuMemoryBufferFactory* const gpu_memory_buffer_factory_;
 163   IPC::SyncChannel* channel_;
 164   bool relinquish_resources_pending_;
 165   // Must outlive this instance of GpuChannelManager.
 166   IPC::AttachmentBroker* attachment_broker_;
 167
 168   // Member variables should appear before the WeakPtrFactory, to ensure
 169   // that any WeakPtrs to Controller are invalidated before its members
 170   // variable's destructors are executed, rendering them invalid.
 171   base::WeakPtrFactory<GpuChannelManager> weak_factory_;
 172
 173   DISALLOW_COPY_AND_ASSIGN(GpuChannelManager);
 174 };
 175
 176 }  // namespace content
 177
 178 #endif  // CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_