src/content/browser/gpu/browser_gpu_channel_host_factory.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_BROWSER_GPU_BROWSER_GPU_CHANNEL_HOST_FACTORY_H_
   6 #define CONTENT_BROWSER_GPU_BROWSER_GPU_CHANNEL_HOST_FACTORY_H_
   7
   8 #include <vector>
   9
  10 #include "base/memory/ref_counted.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "content/common/gpu/client/gpu_channel_host.h"
  13 #include "ipc/message_filter.h"
  14
  15 namespace content {
  16 class BrowserGpuMemoryBufferManager;
  17 class GpuMemoryBufferFactoryHostImpl;
  18
  19 class CONTENT_EXPORT BrowserGpuChannelHostFactory
  20     : public GpuChannelHostFactory {
  21  public:
  22   static void Initialize(bool establish_gpu_channel);
  23   static void Terminate();
  24   static BrowserGpuChannelHostFactory* instance() { return instance_; }
  25
  26   // GpuChannelHostFactory implementation.
  27   bool IsMainThread() override;
  28   base::MessageLoop* GetMainLoop() override;
  29   scoped_refptr<base::MessageLoopProxy> GetIOLoopProxy() override;
  30   scoped_ptr<base::SharedMemory> AllocateSharedMemory(size_t size) override;
  31   CreateCommandBufferResult CreateViewCommandBuffer(
  32       int32 surface_id,
  33       const GPUCreateCommandBufferConfig& init_params,
  34       int32 route_id) override;
  35
  36   // Specify a task runner and callback to be used for a set of messages. The
  37   // callback will be set up on the current GpuProcessHost, identified by
  38   // GpuProcessHostId().
  39   virtual void SetHandlerForControlMessages(
  40       const uint32* message_ids,
  41       size_t num_messages,
  42       const base::Callback<void(const IPC::Message&)>& handler,
  43       base::TaskRunner* target_task_runner);
  44   int GpuProcessHostId() { return gpu_host_id_; }
  45   GpuChannelHost* EstablishGpuChannelSync(
  46       CauseForGpuLaunch cause_for_gpu_launch);
  47   void EstablishGpuChannel(CauseForGpuLaunch cause_for_gpu_launch,
  48                            const base::Closure& callback);
  49   GpuChannelHost* GetGpuChannel();
  50   int GetGpuChannelId() { return gpu_client_id_; }
  51
  52   // Used to skip GpuChannelHost tests when there can be no GPU process.
  53   static bool CanUseForTesting();
  54
  55  private:
  56   struct CreateRequest;
  57   class EstablishRequest;
  58
  59   BrowserGpuChannelHostFactory();
  60   ~BrowserGpuChannelHostFactory() override;
  61
  62   void GpuChannelEstablished();
  63   void CreateViewCommandBufferOnIO(
  64       CreateRequest* request,
  65       int32 surface_id,
  66       const GPUCreateCommandBufferConfig& init_params);
  67   static void CommandBufferCreatedOnIO(CreateRequest* request,
  68                                        CreateCommandBufferResult result);
  69   static void AddFilterOnIO(int gpu_host_id,
  70                             scoped_refptr<IPC::MessageFilter> filter);
  71
  72   const int gpu_client_id_;
  73   scoped_ptr<base::WaitableEvent> shutdown_event_;
  74   scoped_refptr<GpuChannelHost> gpu_channel_;
  75   scoped_ptr<GpuMemoryBufferFactoryHostImpl> gpu_memory_buffer_factory_host_;
  76   scoped_ptr<BrowserGpuMemoryBufferManager> gpu_memory_buffer_manager_;
  77   int gpu_host_id_;
  78   scoped_refptr<EstablishRequest> pending_request_;
  79   std::vector<base::Closure> established_callbacks_;
  80
  81   static BrowserGpuChannelHostFactory* instance_;
  82
  83   DISALLOW_COPY_AND_ASSIGN(BrowserGpuChannelHostFactory);
  84 };
  85
  86 }  // namespace content
  87
  88 #endif  // CONTENT_BROWSER_GPU_BROWSER_GPU_CHANNEL_HOST_FACTORY_H_