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 "base/process/process.h"
  13 #include "base/synchronization/waitable_event.h"
  14 #include "content/common/gpu/client/gpu_channel_host.h"
  15 #include "ipc/ipc_channel_handle.h"
  16 #include "ipc/message_filter.h"
  17
  18 namespace content {
  19
  20 class CONTENT_EXPORT BrowserGpuChannelHostFactory
  21     : public GpuChannelHostFactory {
  22  public:
  23   static void Initialize(bool establish_gpu_channel);
  24   static void Terminate();
  25   static BrowserGpuChannelHostFactory* instance() { return instance_; }
  26
  27   // GpuChannelHostFactory implementation.
  28   virtual bool IsMainThread() OVERRIDE;
  29   virtual base::MessageLoop* GetMainLoop() OVERRIDE;
  30   virtual scoped_refptr<base::MessageLoopProxy> GetIOLoopProxy() OVERRIDE;
  31   virtual scoped_ptr<base::SharedMemory> AllocateSharedMemory(
  32       size_t size) OVERRIDE;
  33   virtual bool CreateViewCommandBuffer(
  34       int32 surface_id,
  35       const GPUCreateCommandBufferConfig& init_params,
  36       int32 route_id) OVERRIDE;
  37   virtual void CreateImage(
  38       gfx::PluginWindowHandle window,
  39       int32 image_id,
  40       const CreateImageCallback& callback) OVERRIDE;
  41   virtual void DeleteImage(int32 image_idu, int32 sync_point) OVERRIDE;
  42   virtual scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
  43       size_t width,
  44       size_t height,
  45       unsigned internalformat,
  46       unsigned usage) OVERRIDE;
  47
  48   // Specify a task runner and callback to be used for a set of messages. The
  49   // callback will be set up on the current GpuProcessHost, identified by
  50   // GpuProcessHostId().
  51   virtual void SetHandlerForControlMessages(
  52       const uint32* message_ids,
  53       size_t num_messages,
  54       const base::Callback<void(const IPC::Message&)>& handler,
  55       base::TaskRunner* target_task_runner);
  56   int GpuProcessHostId() { return gpu_host_id_; }
  57   GpuChannelHost* EstablishGpuChannelSync(
  58       CauseForGpuLaunch cause_for_gpu_launch);
  59   void EstablishGpuChannel(CauseForGpuLaunch cause_for_gpu_launch,
  60                            const base::Closure& callback);
  61   GpuChannelHost* GetGpuChannel();
  62   int GetGpuChannelId() { return gpu_client_id_; }
  63
  64   // Used to skip GpuChannelHost tests when there can be no GPU process.
  65   static bool CanUseForTesting();
  66
  67  private:
  68   struct CreateRequest {
  69     CreateRequest();
  70     ~CreateRequest();
  71     base::WaitableEvent event;
  72     int gpu_host_id;
  73     int32 route_id;
  74     bool succeeded;
  75   };
  76
  77   class EstablishRequest : public base::RefCountedThreadSafe<EstablishRequest> {
  78    public:
  79     explicit EstablishRequest(CauseForGpuLaunch cause,
  80                               int gpu_client_id,
  81                               int gpu_host_id);
  82     void Wait();
  83     void Cancel();
  84
  85     int gpu_host_id() { return gpu_host_id_; }
  86     IPC::ChannelHandle& channel_handle() { return channel_handle_; }
  87     gpu::GPUInfo gpu_info() { return gpu_info_; }
  88
  89    private:
  90     friend class base::RefCountedThreadSafe<EstablishRequest>;
  91     ~EstablishRequest();
  92     void EstablishOnIO();
  93     void OnEstablishedOnIO(const IPC::ChannelHandle& channel_handle,
  94                            const gpu::GPUInfo& gpu_info);
  95     void FinishOnIO();
  96     void FinishOnMain();
  97
  98     base::WaitableEvent event_;
  99     CauseForGpuLaunch cause_for_gpu_launch_;
 100     const int gpu_client_id_;
 101     int gpu_host_id_;
 102     bool reused_gpu_process_;
 103     IPC::ChannelHandle channel_handle_;
 104     gpu::GPUInfo gpu_info_;
 105     bool finished_;
 106     scoped_refptr<base::MessageLoopProxy> main_loop_;
 107   };
 108
 109   explicit BrowserGpuChannelHostFactory(bool establish_gpu_channel);
 110   virtual ~BrowserGpuChannelHostFactory();
 111
 112   void GpuChannelEstablished();
 113   void CreateViewCommandBufferOnIO(
 114       CreateRequest* request,
 115       int32 surface_id,
 116       const GPUCreateCommandBufferConfig& init_params);
 117   static void CommandBufferCreatedOnIO(CreateRequest* request, bool succeeded);
 118   void CreateImageOnIO(
 119       gfx::PluginWindowHandle window,
 120       int32 image_id,
 121       const CreateImageCallback& callback);
 122   static void ImageCreatedOnIO(
 123       const CreateImageCallback& callback, const gfx::Size size);
 124   static void OnImageCreated(
 125       const CreateImageCallback& callback, const gfx::Size size);
 126   void DeleteImageOnIO(int32 image_id, int32 sync_point);
 127   static void AddFilterOnIO(int gpu_host_id,
 128                             scoped_refptr<IPC::MessageFilter> filter);
 129
 130   const int gpu_client_id_;
 131   scoped_ptr<base::WaitableEvent> shutdown_event_;
 132   scoped_refptr<GpuChannelHost> gpu_channel_;
 133   int gpu_host_id_;
 134   scoped_refptr<EstablishRequest> pending_request_;
 135   std::vector<base::Closure> established_callbacks_;
 136
 137   static BrowserGpuChannelHostFactory* instance_;
 138
 139   DISALLOW_COPY_AND_ASSIGN(BrowserGpuChannelHostFactory);
 140 };
 141
 142 }  // namespace content
 143
 144 #endif  // CONTENT_BROWSER_GPU_BROWSER_GPU_CHANNEL_HOST_FACTORY_H_