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 "content/common/message_router.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 }
  34
  35 namespace gpu {
  36 class SyncPointManager;
  37 union ValueState;
  38 namespace gles2 {
  39 class FramebufferCompletenessCache;
  40 class MailboxManager;
  41 class ProgramCache;
  42 class ShaderTranslatorCache;
  43 }
  44 }
  45
  46 namespace IPC {
  47 struct ChannelHandle;
  48 class SyncChannel;
  49 }
  50
  51 struct GPUCreateCommandBufferConfig;
  52
  53 namespace content {
  54 class GpuChannel;
  55 class GpuMemoryBufferFactory;
  56 class GpuWatchdog;
  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   GpuChannelManager(IPC::SyncChannel* channel,
  65                     GpuWatchdog* watchdog,
  66                     base::SingleThreadTaskRunner* task_runner,
  67                     base::SingleThreadTaskRunner* io_task_runner,
  68                     base::WaitableEvent* shutdown_event,
  69                     gpu::SyncPointManager* sync_point_manager,
  70                     GpuMemoryBufferFactory* gpu_memory_buffer_factory);
  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   void LoseAllContexts();
  83
  84   int GenerateRouteID();
  85   void AddRoute(int32 routing_id, IPC::Listener* listener);
  86   void RemoveRoute(int32 routing_id);
  87
  88   gpu::gles2::ProgramCache* program_cache();
  89   gpu::gles2::ShaderTranslatorCache* shader_translator_cache();
  90   gpu::gles2::FramebufferCompletenessCache* framebuffer_completeness_cache();
  91
  92   GpuMemoryManager* gpu_memory_manager() { return &gpu_memory_manager_; }
  93
  94   GpuChannel* LookupChannel(int32 client_id) const;
  95
  96   gpu::SyncPointManager* sync_point_manager() {
  97     return sync_point_manager_;
  98   }
  99
 100   gfx::GLSurface* GetDefaultOffscreenSurface();
 101
 102   GpuMemoryBufferFactory* gpu_memory_buffer_factory() {
 103     return gpu_memory_buffer_factory_;
 104   }
 105
 106   // Returns the maximum order number for unprocessed IPC messages across all
 107   // channels.
 108   uint32_t GetUnprocessedOrderNum() const;
 109
 110   // Returns the maximum order number for processed IPC messages across all
 111   // channels.
 112   uint32_t GetProcessedOrderNum() const;
 113
 114  protected:
 115   virtual scoped_ptr<GpuChannel> CreateGpuChannel(
 116       gfx::GLShareGroup* share_group,
 117       gpu::gles2::MailboxManager* mailbox_manager,
 118       int client_id,
 119       uint64_t client_tracing_id,
 120       bool allow_future_sync_points,
 121       bool allow_real_time_streams);
 122
 123   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 124   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
 125
 126   // These objects manage channels to individual renderer processes there is
 127   // one channel for each renderer process that has connected to this GPU
 128   // process.
 129   base::ScopedPtrHashMap<int32, scoped_ptr<GpuChannel>> gpu_channels_;
 130
 131  private:
 132   // Message handlers.
 133   bool OnControlMessageReceived(const IPC::Message& msg);
 134   void OnEstablishChannel(int client_id,
 135                           uint64_t client_tracing_id,
 136                           bool share_context,
 137                           bool allow_future_sync_points,
 138                           bool allow_real_time_streams);
 139   void OnCloseChannel(const IPC::ChannelHandle& channel_handle);
 140   void OnVisibilityChanged(
 141       int32 render_view_id, int32 client_id, bool visible);
 142   void OnCreateViewCommandBuffer(
 143       const gfx::GLSurfaceHandle& window,
 144       int32 render_view_id,
 145       int32 client_id,
 146       const GPUCreateCommandBufferConfig& init_params,
 147       int32 route_id);
 148   void OnLoadedShader(std::string shader);
 149   void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id, int client_id);
 150   void DestroyGpuMemoryBufferOnIO(gfx::GpuMemoryBufferId id, int client_id);
 151   void OnDestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
 152                                 int client_id,
 153                                 int32 sync_point);
 154
 155   void OnUpdateValueState(int client_id,
 156                           unsigned int target,
 157                           const gpu::ValueState& state);
 158   void OnLoseAllContexts();
 159
 160   // Used to send and receive IPC messages from the browser process.
 161   IPC::SyncChannel* const channel_;
 162   MessageRouter router_;
 163
 164   GpuWatchdog* watchdog_;
 165
 166   base::WaitableEvent* shutdown_event_;
 167
 168   scoped_refptr<gfx::GLShareGroup> share_group_;
 169   scoped_refptr<gpu::gles2::MailboxManager> mailbox_manager_;
 170   GpuMemoryManager gpu_memory_manager_;
 171   // SyncPointManager guaranteed to outlive running MessageLoop.
 172   gpu::SyncPointManager* sync_point_manager_;
 173   scoped_ptr<gpu::gles2::ProgramCache> program_cache_;
 174   scoped_refptr<gpu::gles2::ShaderTranslatorCache> shader_translator_cache_;
 175   scoped_refptr<gpu::gles2::FramebufferCompletenessCache>
 176       framebuffer_completeness_cache_;
 177   scoped_refptr<gfx::GLSurface> default_offscreen_surface_;
 178   GpuMemoryBufferFactory* const gpu_memory_buffer_factory_;
 179
 180   // Member variables should appear before the WeakPtrFactory, to ensure
 181   // that any WeakPtrs to Controller are invalidated before its members
 182   // variable's destructors are executed, rendering them invalid.
 183   base::WeakPtrFactory<GpuChannelManager> weak_factory_;
 184
 185   DISALLOW_COPY_AND_ASSIGN(GpuChannelManager);
 186 };
 187
 188 }  // namespace content
 189
 190 #endif  // CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_