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