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 "content/common/gpu/client/gpu_memory_buffer_factory_host.h"
  14 #include "ipc/message_filter.h"
  15
  16 namespace content {
  17
  18 class CONTENT_EXPORT BrowserGpuChannelHostFactory
  19     : public GpuChannelHostFactory,
  20       public GpuMemoryBufferFactoryHost {
  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   virtual bool IsMainThread() OVERRIDE;
  28   virtual base::MessageLoop* GetMainLoop() OVERRIDE;
  29   virtual scoped_refptr<base::MessageLoopProxy> GetIOLoopProxy() OVERRIDE;
  30   virtual scoped_ptr<base::SharedMemory> AllocateSharedMemory(
  31       size_t size) OVERRIDE;
  32   virtual CreateCommandBufferResult CreateViewCommandBuffer(
  33       int32 surface_id,
  34       const GPUCreateCommandBufferConfig& init_params,
  35       int32 route_id) OVERRIDE;
  36   virtual scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
  37       size_t width,
  38       size_t height,
  39       unsigned internalformat,
  40       unsigned usage) OVERRIDE;
  41   virtual void DeleteGpuMemoryBuffer(
  42       scoped_ptr<gfx::GpuMemoryBuffer> buffer) OVERRIDE {}
  43
  44   // GpuMemoryBufferFactoryHost implementation.
  45   virtual void CreateGpuMemoryBuffer(
  46       const gfx::GpuMemoryBufferHandle& handle,
  47       const gfx::Size& size,
  48       unsigned internalformat,
  49       unsigned usage,
  50       const CreateGpuMemoryBufferCallback& callback) OVERRIDE;
  51   virtual void DestroyGpuMemoryBuffer(const gfx::GpuMemoryBufferHandle& handle,
  52                                       int32 sync_point) OVERRIDE;
  53
  54   // Specify a task runner and callback to be used for a set of messages. The
  55   // callback will be set up on the current GpuProcessHost, identified by
  56   // GpuProcessHostId().
  57   virtual void SetHandlerForControlMessages(
  58       const uint32* message_ids,
  59       size_t num_messages,
  60       const base::Callback<void(const IPC::Message&)>& handler,
  61       base::TaskRunner* target_task_runner);
  62   int GpuProcessHostId() { return gpu_host_id_; }
  63   GpuChannelHost* EstablishGpuChannelSync(
  64       CauseForGpuLaunch cause_for_gpu_launch);
  65   void EstablishGpuChannel(CauseForGpuLaunch cause_for_gpu_launch,
  66                            const base::Closure& callback);
  67   GpuChannelHost* GetGpuChannel();
  68   int GetGpuChannelId() { return gpu_client_id_; }
  69
  70   // Used to skip GpuChannelHost tests when there can be no GPU process.
  71   static bool CanUseForTesting();
  72
  73  private:
  74   struct CreateRequest;
  75   class EstablishRequest;
  76
  77   BrowserGpuChannelHostFactory();
  78   virtual ~BrowserGpuChannelHostFactory();
  79
  80   void GpuChannelEstablished();
  81   void CreateViewCommandBufferOnIO(
  82       CreateRequest* request,
  83       int32 surface_id,
  84       const GPUCreateCommandBufferConfig& init_params);
  85   static void CommandBufferCreatedOnIO(CreateRequest* request,
  86                                        CreateCommandBufferResult result);
  87   static void AddFilterOnIO(int gpu_host_id,
  88                             scoped_refptr<IPC::MessageFilter> filter);
  89
  90   void CreateGpuMemoryBufferOnIO(const gfx::GpuMemoryBufferHandle& handle,
  91                                  const gfx::Size& size,
  92                                  unsigned internalformat,
  93                                  unsigned usage,
  94                                  uint32 request_id);
  95   void GpuMemoryBufferCreatedOnIO(
  96       uint32 request_id,
  97       const gfx::GpuMemoryBufferHandle& handle);
  98   void OnGpuMemoryBufferCreated(
  99       uint32 request_id,
 100       const gfx::GpuMemoryBufferHandle& handle);
 101   void DestroyGpuMemoryBufferOnIO(const gfx::GpuMemoryBufferHandle& handle,
 102                                   int32 sync_point);
 103
 104   const int gpu_client_id_;
 105   scoped_ptr<base::WaitableEvent> shutdown_event_;
 106   scoped_refptr<GpuChannelHost> gpu_channel_;
 107   int gpu_host_id_;
 108   scoped_refptr<EstablishRequest> pending_request_;
 109   std::vector<base::Closure> established_callbacks_;
 110
 111   uint32 next_create_gpu_memory_buffer_request_id_;
 112   typedef std::map<uint32, CreateGpuMemoryBufferCallback>
 113       CreateGpuMemoryBufferCallbackMap;
 114   CreateGpuMemoryBufferCallbackMap create_gpu_memory_buffer_requests_;
 115
 116   static BrowserGpuChannelHostFactory* instance_;
 117
 118   DISALLOW_COPY_AND_ASSIGN(BrowserGpuChannelHostFactory);
 119 };
 120
 121 }  // namespace content
 122
 123 #endif  // CONTENT_BROWSER_GPU_BROWSER_GPU_CHANNEL_HOST_FACTORY_H_