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                     GpuMemoryBufferFactory* gpu_memory_buffer_factory);
  72   ~GpuChannelManager() override;
  73
  74   // Remove the channel for a particular renderer.
  75   void RemoveChannel(int client_id);
  76
  77   // Listener overrides.
  78   bool OnMessageReceived(const IPC::Message& msg) override;
  79
  80   // Sender overrides.
  81   bool Send(IPC::Message* msg) override;
  82
  83   bool HandleMessagesScheduled();
  84   uint64 MessagesProcessed();
  85
  86   void LoseAllContexts();
  87
  88   int GenerateRouteID();
  89   void AddRoute(int32 routing_id, IPC::Listener* listener);
  90   void RemoveRoute(int32 routing_id);
  91
  92   gpu::gles2::ProgramCache* program_cache();
  93   gpu::gles2::ShaderTranslatorCache* shader_translator_cache();
  94
  95   GpuMemoryManager* gpu_memory_manager() { return &gpu_memory_manager_; }
  96
  97   GpuChannel* LookupChannel(int32 client_id);
  98
  99   gpu::SyncPointManager* sync_point_manager() {
 100     return sync_point_manager_.get();
 101   }
 102
 103   gfx::GLSurface* GetDefaultOffscreenSurface();
 104
 105   GpuMemoryBufferFactory* gpu_memory_buffer_factory() {
 106     return gpu_memory_buffer_factory_;
 107   }
 108
 109  private:
 110   typedef base::ScopedPtrHashMap<int, scoped_ptr<GpuChannel>> GpuChannelMap;
 111
 112   // Message handlers.
 113   void OnEstablishChannel(int client_id,
 114                           bool share_context,
 115                           bool allow_future_sync_points);
 116   void OnCloseChannel(const IPC::ChannelHandle& channel_handle);
 117   void OnVisibilityChanged(
 118       int32 render_view_id, int32 client_id, bool visible);
 119   void OnCreateViewCommandBuffer(
 120       const gfx::GLSurfaceHandle& window,
 121       int32 render_view_id,
 122       int32 client_id,
 123       const GPUCreateCommandBufferConfig& init_params,
 124       int32 route_id);
 125   void OnLoadedShader(std::string shader);
 126   void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id, int client_id);
 127   void DestroyGpuMemoryBufferOnIO(gfx::GpuMemoryBufferId id, int client_id);
 128   void OnDestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
 129                                 int client_id,
 130                                 int32 sync_point);
 131
 132   void OnRelinquishResources();
 133   void OnResourcesRelinquished();
 134
 135   void OnUpdateValueState(int client_id,
 136                           unsigned int target,
 137                           const gpu::ValueState& state);
 138
 139   void OnLoseAllContexts();
 140   void CheckRelinquishGpuResources();
 141
 142   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
 143   base::WaitableEvent* shutdown_event_;
 144
 145   // Used to send and receive IPC messages from the browser process.
 146   MessageRouter* const router_;
 147
 148   // These objects manage channels to individual renderer processes there is
 149   // one channel for each renderer process that has connected to this GPU
 150   // process.
 151   GpuChannelMap gpu_channels_;
 152   scoped_refptr<gfx::GLShareGroup> share_group_;
 153   scoped_refptr<gpu::gles2::MailboxManager> mailbox_manager_;
 154   GpuMemoryManager gpu_memory_manager_;
 155   GpuWatchdog* watchdog_;
 156   scoped_refptr<gpu::SyncPointManager> sync_point_manager_;
 157   scoped_ptr<gpu::gles2::ProgramCache> program_cache_;
 158   scoped_refptr<gpu::gles2::ShaderTranslatorCache> shader_translator_cache_;
 159   scoped_refptr<gfx::GLSurface> default_offscreen_surface_;
 160   GpuMemoryBufferFactory* const gpu_memory_buffer_factory_;
 161   IPC::SyncChannel* channel_;
 162   bool relinquish_resources_pending_;
 163   // Must outlive this instance of GpuChannelManager.
 164   IPC::AttachmentBroker* attachment_broker_;
 165
 166   // Member variables should appear before the WeakPtrFactory, to ensure
 167   // that any WeakPtrs to Controller are invalidated before its members
 168   // variable's destructors are executed, rendering them invalid.
 169   base::WeakPtrFactory<GpuChannelManager> weak_factory_;
 170
 171   DISALLOW_COPY_AND_ASSIGN(GpuChannelManager);
 172 };
 173
 174 }  // namespace content
 175
 176 #endif  // CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_