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, bool share_context); 114 void OnCloseChannel(const IPC::ChannelHandle& channel_handle); 115 void OnVisibilityChanged( 116 int32 render_view_id, int32 client_id, bool visible); 117 void OnCreateViewCommandBuffer( 118 const gfx::GLSurfaceHandle& window, 119 int32 render_view_id, 120 int32 client_id, 121 const GPUCreateCommandBufferConfig& init_params, 122 int32 route_id); 123 void CreateImage( 124 gfx::PluginWindowHandle window, int32 client_id, int32 image_id); 125 void OnCreateImage( 126 gfx::PluginWindowHandle window, int32 client_id, int32 image_id); 127 void DeleteImage(int32 client_id, int32 image_id); 128 void OnDeleteImage(int32 client_id, int32 image_id, int32 sync_point); 129 void OnDeleteImageSyncPointRetired(ImageOperation*); 130 void OnLoadedShader(std::string shader); 131 void OnCreateGpuMemoryBuffer(const gfx::GpuMemoryBufferHandle& handle, 132 const gfx::Size& size, 133 unsigned internalformat, 134 unsigned usage); 135 void OnDestroyGpuMemoryBuffer(const gfx::GpuMemoryBufferHandle& handle, 136 int32 sync_point); 137 138 void OnLoseAllContexts(); 139 140 scoped_refptr<base::MessageLoopProxy> io_message_loop_; 141 base::WaitableEvent* shutdown_event_; 142 143 // Used to send and receive IPC messages from the browser process. 144 MessageRouter* const router_; 145 146 // These objects manage channels to individual renderer processes there is 147 // one channel for each renderer process that has connected to this GPU 148 // process. 149 GpuChannelMap gpu_channels_; 150 scoped_refptr<gfx::GLShareGroup> share_group_; 151 scoped_refptr<gpu::gles2::MailboxManager> mailbox_manager_; 152 GpuMemoryManager gpu_memory_manager_; 153 GpuEventsDispatcher gpu_devtools_events_dispatcher_; 154 GpuWatchdog* watchdog_; 155 scoped_refptr<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 ImageOperationQueue image_operations_; 160 161 DISALLOW_COPY_AND_ASSIGN(GpuChannelManager); 162 }; 163 164 } // namespace content 165 166 #endif // CONTENT_COMMON_GPU_GPU_CHANNEL_MANAGER_H_ 167