content/common/gpu/gpu_command_buffer_stub.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_COMMAND_BUFFER_STUB_H_
   6 #define CONTENT_COMMON_GPU_GPU_COMMAND_BUFFER_STUB_H_
   7
   8 #include <deque>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/memory/scoped_vector.h"
  13 #include "base/memory/weak_ptr.h"
  14 #include "base/observer_list.h"
  15 #include "content/common/content_export.h"
  16 #include "content/common/gpu/gpu_memory_manager.h"
  17 #include "content/common/gpu/gpu_memory_manager_client.h"
  18 #include "gpu/command_buffer/common/constants.h"
  19 #include "gpu/command_buffer/common/gpu_memory_allocation.h"
  20 #include "gpu/command_buffer/service/command_buffer_service.h"
  21 #include "gpu/command_buffer/service/context_group.h"
  22 #include "gpu/command_buffer/service/gpu_scheduler.h"
  23 #include "ipc/ipc_listener.h"
  24 #include "ipc/ipc_sender.h"
  25 #include "media/base/video_decoder_config.h"
  26 #include "ui/events/latency_info.h"
  27 #include "ui/gfx/geometry/size.h"
  28 #include "ui/gfx/gpu_memory_buffer.h"
  29 #include "ui/gfx/native_widget_types.h"
  30 #include "ui/gfx/swap_result.h"
  31 #include "ui/gl/gl_surface.h"
  32 #include "ui/gl/gpu_preference.h"
  33 #include "url/gurl.h"
  34
  35 namespace gpu {
  36 struct Mailbox;
  37 class ValueStateMap;
  38 namespace gles2 {
  39 class MailboxManager;
  40 class SubscriptionRefSet;
  41 }
  42 }
  43
  44 namespace content {
  45
  46 class GpuChannel;
  47 class GpuVideoDecodeAccelerator;
  48 class GpuVideoEncodeAccelerator;
  49 class GpuWatchdog;
  50 struct WaitForCommandState;
  51
  52 class GpuCommandBufferStub
  53     : public GpuMemoryManagerClient,
  54       public IPC::Listener,
  55       public IPC::Sender,
  56       public base::SupportsWeakPtr<GpuCommandBufferStub> {
  57  public:
  58   class DestructionObserver {
  59    public:
  60     // Called in Destroy(), before the context/surface are released.
  61     virtual void OnWillDestroyStub() = 0;
  62
  63    protected:
  64     virtual ~DestructionObserver() {}
  65   };
  66
  67   typedef base::Callback<void(const std::vector<ui::LatencyInfo>&)>
  68       LatencyInfoCallback;
  69
  70   GpuCommandBufferStub(
  71       GpuChannel* channel,
  72       GpuCommandBufferStub* share_group,
  73       const gfx::GLSurfaceHandle& handle,
  74       gpu::gles2::MailboxManager* mailbox_manager,
  75       gpu::gles2::SubscriptionRefSet* subscription_ref_set,
  76       gpu::ValueStateMap* pending_valuebuffer_state,
  77       const gfx::Size& size,
  78       const gpu::gles2::DisallowedFeatures& disallowed_features,
  79       const std::vector<int32>& attribs,
  80       gfx::GpuPreference gpu_preference,
  81       bool use_virtualized_gl_context,
  82       int32 route_id,
  83       int32 surface_id,
  84       GpuWatchdog* watchdog,
  85       bool software,
  86       const GURL& active_url);
  87
  88   ~GpuCommandBufferStub() override;
  89
  90   // IPC::Listener implementation:
  91   bool OnMessageReceived(const IPC::Message& message) override;
  92
  93   // IPC::Sender implementation:
  94   bool Send(IPC::Message* msg) override;
  95
  96   // GpuMemoryManagerClient implementation:
  97   gfx::Size GetSurfaceSize() const override;
  98   gpu::gles2::MemoryTracker* GetMemoryTracker() const override;
  99   void SetMemoryAllocation(const gpu::MemoryAllocation& allocation) override;
 100   void SuggestHaveFrontBuffer(bool suggest_have_frontbuffer) override;
 101   bool GetTotalGpuMemory(uint64* bytes) override;
 102
 103   // Whether this command buffer can currently handle IPC messages.
 104   bool IsScheduled();
 105
 106   // If the command buffer is pre-empted and cannot process commands.
 107   bool IsPreempted() const {
 108     return scheduler_.get() && scheduler_->IsPreempted();
 109   }
 110
 111   // Whether there are commands in the buffer that haven't been processed.
 112   bool HasUnprocessedCommands();
 113
 114   gpu::gles2::GLES2Decoder* decoder() const { return decoder_.get(); }
 115   gpu::GpuScheduler* scheduler() const { return scheduler_.get(); }
 116   GpuChannel* channel() const { return channel_; }
 117
 118   // Identifies the target surface.
 119   int32 surface_id() const { return surface_id_; }
 120
 121   // Identifies the various GpuCommandBufferStubs in the GPU process belonging
 122   // to the same renderer process.
 123   int32 route_id() const { return route_id_; }
 124
 125   gfx::GpuPreference gpu_preference() { return gpu_preference_; }
 126
 127   int32 GetRequestedAttribute(int attr) const;
 128
 129   // Sends a message to the console.
 130   void SendConsoleMessage(int32 id, const std::string& message);
 131
 132   void SendCachedShader(const std::string& key, const std::string& shader);
 133
 134   gfx::GLSurface* surface() const { return surface_.get(); }
 135
 136   void AddDestructionObserver(DestructionObserver* observer);
 137   void RemoveDestructionObserver(DestructionObserver* observer);
 138
 139   // Associates a sync point to this stub. When the stub is destroyed, it will
 140   // retire all sync points that haven't been previously retired.
 141   void AddSyncPoint(uint32 sync_point);
 142
 143   void SetPreemptByFlag(scoped_refptr<gpu::PreemptionFlag> flag);
 144
 145   void SetLatencyInfoCallback(const LatencyInfoCallback& callback);
 146
 147   void MarkContextLost();
 148
 149   const gpu::gles2::FeatureInfo* GetFeatureInfo() const;
 150
 151   uint64 GetMemoryUsage() const;
 152
 153   void SendSwapBuffersCompleted(
 154       const std::vector<ui::LatencyInfo>& latency_info,
 155       gfx::SwapResult result);
 156   void SendUpdateVSyncParameters(base::TimeTicks timebase,
 157                                  base::TimeDelta interval);
 158
 159  private:
 160   GpuMemoryManager* GetMemoryManager() const;
 161   bool MakeCurrent();
 162   void Destroy();
 163
 164   // Cleans up and sends reply if OnInitialize failed.
 165   void OnInitializeFailed(IPC::Message* reply_message);
 166
 167   // Message handlers:
 168   void OnInitialize(base::SharedMemoryHandle shared_state_shm,
 169                     IPC::Message* reply_message);
 170   void OnSetGetBuffer(int32 shm_id, IPC::Message* reply_message);
 171   void OnProduceFrontBuffer(const gpu::Mailbox& mailbox);
 172   void OnGetState(IPC::Message* reply_message);
 173   void OnWaitForTokenInRange(int32 start,
 174                              int32 end,
 175                              IPC::Message* reply_message);
 176   void OnWaitForGetOffsetInRange(int32 start,
 177                                  int32 end,
 178                                  IPC::Message* reply_message);
 179   void OnAsyncFlush(int32 put_offset, uint32 flush_count,
 180                     const std::vector<ui::LatencyInfo>& latency_info);
 181   void OnRescheduled();
 182   void OnRegisterTransferBuffer(int32 id,
 183                                 base::SharedMemoryHandle transfer_buffer,
 184                                 uint32 size);
 185   void OnDestroyTransferBuffer(int32 id);
 186   void OnGetTransferBuffer(int32 id, IPC::Message* reply_message);
 187
 188   void OnCreateVideoDecoder(media::VideoCodecProfile profile,
 189                             int32 route_id,
 190                             IPC::Message* reply_message);
 191   void OnCreateVideoEncoder(media::VideoPixelFormat input_format,
 192                             const gfx::Size& input_visible_size,
 193                             media::VideoCodecProfile output_profile,
 194                             uint32 initial_bitrate,
 195                             int32 route_id,
 196                             IPC::Message* reply_message);
 197
 198   void OnSetSurfaceVisible(bool visible);
 199
 200   void OnEnsureBackbuffer();
 201
 202   void OnRetireSyncPoint(uint32 sync_point);
 203   bool OnWaitSyncPoint(uint32 sync_point);
 204   void OnWaitSyncPointCompleted(uint32 sync_point);
 205   void OnSignalSyncPoint(uint32 sync_point, uint32 id);
 206   void OnSignalSyncPointAck(uint32 id);
 207   void OnSignalQuery(uint32 query, uint32 id);
 208
 209   void OnSetClientHasMemoryAllocationChangedCallback(bool has_callback);
 210
 211   void OnCreateImage(int32 id,
 212                      gfx::GpuMemoryBufferHandle handle,
 213                      gfx::Size size,
 214                      gfx::GpuMemoryBuffer::Format format,
 215                      uint32 internalformat);
 216   void OnDestroyImage(int32 id);
 217
 218   void OnCommandProcessed();
 219   void OnParseError();
 220   void OnCreateStreamTexture(
 221       uint32 texture_id, int32 stream_id, bool* succeeded);
 222
 223   void ReportState();
 224
 225   // Wrapper for GpuScheduler::PutChanged that sets the crash report URL.
 226   void PutChanged();
 227
 228   // Poll the command buffer to execute work.
 229   void PollWork();
 230
 231   // Whether this command buffer needs to be polled again in the future.
 232   bool HasMoreWork();
 233
 234   void ScheduleDelayedWork(int64 delay);
 235
 236   bool CheckContextLost();
 237   void CheckCompleteWaits();
 238   void PullTextureUpdates(uint32 sync_point);
 239
 240   // The lifetime of objects of this class is managed by a GpuChannel. The
 241   // GpuChannels destroy all the GpuCommandBufferStubs that they own when they
 242   // are destroyed. So a raw pointer is safe.
 243   GpuChannel* channel_;
 244
 245   // The group of contexts that share namespaces with this context.
 246   scoped_refptr<gpu::gles2::ContextGroup> context_group_;
 247
 248   gfx::GLSurfaceHandle handle_;
 249   gfx::Size initial_size_;
 250   gpu::gles2::DisallowedFeatures disallowed_features_;
 251   std::vector<int32> requested_attribs_;
 252   gfx::GpuPreference gpu_preference_;
 253   bool use_virtualized_gl_context_;
 254   int32 route_id_;
 255   int32 surface_id_;
 256   bool software_;
 257   uint32 last_flush_count_;
 258
 259   scoped_ptr<gpu::CommandBufferService> command_buffer_;
 260   scoped_ptr<gpu::gles2::GLES2Decoder> decoder_;
 261   scoped_ptr<gpu::GpuScheduler> scheduler_;
 262   scoped_refptr<gfx::GLSurface> surface_;
 263
 264   scoped_ptr<GpuMemoryManagerClientState> memory_manager_client_state_;
 265   // The last memory allocation received from the GpuMemoryManager (used to
 266   // elide redundant work).
 267   bool last_memory_allocation_valid_;
 268   gpu::MemoryAllocation last_memory_allocation_;
 269
 270   GpuWatchdog* watchdog_;
 271
 272   base::ObserverList<DestructionObserver> destruction_observers_;
 273
 274   // A queue of sync points associated with this stub.
 275   std::deque<uint32> sync_points_;
 276   int sync_point_wait_count_;
 277
 278   bool delayed_work_scheduled_;
 279   uint64 previous_messages_processed_;
 280   base::TimeTicks last_idle_time_;
 281
 282   scoped_refptr<gpu::PreemptionFlag> preemption_flag_;
 283
 284   LatencyInfoCallback latency_info_callback_;
 285
 286   GURL active_url_;
 287   size_t active_url_hash_;
 288
 289   size_t total_gpu_memory_;
 290   scoped_ptr<WaitForCommandState> wait_for_token_;
 291   scoped_ptr<WaitForCommandState> wait_for_get_offset_;
 292
 293   DISALLOW_COPY_AND_ASSIGN(GpuCommandBufferStub);
 294 };
 295
 296 }  // namespace content
 297
 298 #endif  // CONTENT_COMMON_GPU_GPU_COMMAND_BUFFER_STUB_H_