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/gpu/devtools_gpu_instrumentation.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/native_widget_types.h"
  23 #include "ui/gl/gl_surface.h"
  24
  25 namespace base {
  26 class WaitableEvent;
  27 }
  28
  29 namespace gfx {
  30 class GLShareGroup;
  31 struct GpuMemoryBufferHandle;
  32 }
  33
  34 namespace gpu {
  35 namespace gles2 {
  36 class MailboxManager;
  37 class ProgramCache;
  38 class ShaderTranslatorCache;
  39 }
  40 }
  41
  42 namespace IPC {
  43 struct ChannelHandle;
  44 }
  45
  46 struct GPUCreateCommandBufferConfig;
  47
  48 namespace content {
  49 class GpuChannel;
  50 class GpuWatchdog;
  51 class MessageRouter;
  52 class SyncPointManager;
  53
  54 // A GpuChannelManager is a thread responsible for issuing rendering commands
  55 // managing the lifetimes of GPU channels and forwarding IPC requests from the
  56 // browser process to them based on the corresponding renderer ID.
  57 class GpuChannelManager : public IPC::Listener,
  58                           public IPC::Sender {
  59  public:
  60   GpuChannelManager(MessageRouter* router,
  61                     GpuWatchdog* watchdog,
  62                     base::MessageLoopProxy* io_message_loop,
  63                     base::WaitableEvent* shutdown_event);
  64   virtual ~GpuChannelManager();
  65
  66   // Remove the channel for a particular renderer.
  67   void RemoveChannel(int client_id);
  68
  69   // Listener overrides.
  70   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
  71
  72   // Sender overrides.
  73   virtual bool Send(IPC::Message* msg) OVERRIDE;
  74
  75   bool HandleMessagesScheduled();
  76   uint64 MessagesProcessed();
  77
  78   void LoseAllContexts();
  79
  80   base::WeakPtrFactory<GpuChannelManager> weak_factory_;
  81
  82   int GenerateRouteID();
  83   void AddRoute(int32 routing_id, IPC::Listener* listener);
  84   void RemoveRoute(int32 routing_id);
  85
  86   gpu::gles2::ProgramCache* program_cache();
  87   gpu::gles2::ShaderTranslatorCache* shader_translator_cache();
  88
  89   GpuMemoryManager* gpu_memory_manager() { return &gpu_memory_manager_; }
  90
  91   GpuEventsDispatcher* gpu_devtools_events_dispatcher() {
  92     return &gpu_devtools_events_dispatcher_;
  93   }
  94
  95   GpuChannel* LookupChannel(int32 client_id);
  96
  97   SyncPointManager* sync_point_manager() { return sync_point_manager_.get(); }
  98
  99   gfx::GLSurface* GetDefaultOffscreenSurface();
 100
 101  private:
 102   struct ImageOperation {
 103     ImageOperation(int32 sync_point, base::Closure callback);
 104     ~ImageOperation();
 105
 106     int32 sync_point;
 107     base::Closure callback;
 108   };
 109   typedef base::ScopedPtrHashMap<int, GpuChannel> GpuChannelMap;
 110   typedef std::deque<ImageOperation*> ImageOperationQueue;
 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 CreateImage(
 126       gfx::PluginWindowHandle window, int32 client_id, int32 image_id);
 127   void OnCreateImage(
 128       gfx::PluginWindowHandle window, int32 client_id, int32 image_id);
 129   void DeleteImage(int32 client_id, int32 image_id);
 130   void OnDeleteImage(int32 client_id, int32 image_id, int32 sync_point);
 131   void OnDeleteImageSyncPointRetired(ImageOperation*);
 132   void OnLoadedShader(std::string shader);
 133   void OnCreateGpuMemoryBuffer(const gfx::GpuMemoryBufferHandle& handle,
 134                                const gfx::Size& size,
 135                                unsigned internalformat,
 136                                unsigned usage);
 137   void OnDestroyGpuMemoryBuffer(const gfx::GpuMemoryBufferHandle& handle,
 138                                 int32 sync_point);
 139
 140   void OnLoseAllContexts();
 141
 142   scoped_refptr<base::MessageLoopProxy> io_message_loop_;
 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   GpuEventsDispatcher gpu_devtools_events_dispatcher_;
 156   GpuWatchdog* watchdog_;
 157   scoped_refptr<SyncPointManager> sync_point_manager_;
 158   scoped_ptr<gpu::gles2::ProgramCache> program_cache_;
 159   scoped_refptr<gpu::gles2::ShaderTranslatorCache> shader_translator_cache_;
 160   scoped_refptr<gfx::GLSurface> default_offscreen_surface_;
 161   ImageOperationQueue image_operations_;
 162
 163   DISALLOW_COPY_AND_ASSIGN(GpuChannelManager);
 164 };
 165
 166 }  // namespace content
 167
 168 #endif  // CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_