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 <map>
   9 #include <vector>
  10
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "content/common/gpu/client/gpu_channel_host.h"
  14 #include "content/common/gpu/client/gpu_memory_buffer_factory_host.h"
  15 #include "ipc/message_filter.h"
  16
  17 namespace content {
  18 class BrowserGpuMemoryBufferManager;
  19
  20 class CONTENT_EXPORT BrowserGpuChannelHostFactory
  21     : public GpuChannelHostFactory,
  22       public GpuMemoryBufferFactoryHost {
  23  public:
  24   static void Initialize(bool establish_gpu_channel);
  25   static void Terminate();
  26   static BrowserGpuChannelHostFactory* instance() { return instance_; }
  27
  28   static void EnableGpuMemoryBufferFactoryUsage(
  29       gfx::GpuMemoryBuffer::Usage usage);
  30   static bool IsGpuMemoryBufferFactoryUsageEnabled(
  31       gfx::GpuMemoryBuffer::Usage usage);
  32   static uint32 GetImageTextureTarget();
  33
  34   // Overridden from GpuChannelHostFactory:
  35   bool IsMainThread() override;
  36   scoped_refptr<base::MessageLoopProxy> GetIOLoopProxy() override;
  37   scoped_ptr<base::SharedMemory> AllocateSharedMemory(size_t size) override;
  38   CreateCommandBufferResult CreateViewCommandBuffer(
  39       int32 surface_id,
  40       const GPUCreateCommandBufferConfig& init_params,
  41       int32 route_id) override;
  42
  43   // Overridden from GpuMemoryBufferFactoryHost:
  44   bool IsGpuMemoryBufferConfigurationSupported(
  45       gfx::GpuMemoryBuffer::Format format,
  46       gfx::GpuMemoryBuffer::Usage usage) override;
  47   void CreateGpuMemoryBuffer(
  48       gfx::GpuMemoryBufferId id,
  49       const gfx::Size& size,
  50       gfx::GpuMemoryBuffer::Format format,
  51       gfx::GpuMemoryBuffer::Usage usage,
  52       int client_id,
  53       int32 surface_id,
  54       const CreateGpuMemoryBufferCallback& callback) override;
  55   void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
  56                               int client_id,
  57                               int32 sync_point) override;
  58
  59   int GpuProcessHostId() { return gpu_host_id_; }
  60 #if !defined(OS_ANDROID)
  61   GpuChannelHost* EstablishGpuChannelSync(
  62       CauseForGpuLaunch cause_for_gpu_launch);
  63 #endif
  64   void EstablishGpuChannel(CauseForGpuLaunch cause_for_gpu_launch,
  65                            const base::Closure& callback);
  66   GpuChannelHost* GetGpuChannel();
  67   int GetGpuChannelId() { return gpu_client_id_; }
  68
  69   // Used to skip GpuChannelHost tests when there can be no GPU process.
  70   static bool CanUseForTesting();
  71
  72  private:
  73   struct CreateRequest;
  74   class EstablishRequest;
  75
  76   BrowserGpuChannelHostFactory();
  77   ~BrowserGpuChannelHostFactory() override;
  78
  79   void GpuChannelEstablished();
  80   void CreateViewCommandBufferOnIO(
  81       CreateRequest* request,
  82       int32 surface_id,
  83       const GPUCreateCommandBufferConfig& init_params);
  84   static void CommandBufferCreatedOnIO(CreateRequest* request,
  85                                        CreateCommandBufferResult result);
  86   static void AddFilterOnIO(int gpu_host_id,
  87                             scoped_refptr<IPC::MessageFilter> filter);
  88   void DestroyGpuMemoryBufferOnIO(gfx::GpuMemoryBufferId id,
  89                                   int client_id,
  90                                   int32 sync_point);
  91   void OnGpuMemoryBufferCreated(uint32 request_id,
  92                                 const gfx::GpuMemoryBufferHandle& handle);
  93
  94   const int gpu_client_id_;
  95   scoped_ptr<base::WaitableEvent> shutdown_event_;
  96   scoped_refptr<GpuChannelHost> gpu_channel_;
  97   scoped_ptr<BrowserGpuMemoryBufferManager> gpu_memory_buffer_manager_;
  98   int gpu_host_id_;
  99   scoped_refptr<EstablishRequest> pending_request_;
 100   std::vector<base::Closure> established_callbacks_;
 101   uint32 next_create_gpu_memory_buffer_request_id_;
 102   typedef std::map<uint32, CreateGpuMemoryBufferCallback>
 103       CreateGpuMemoryBufferCallbackMap;
 104   CreateGpuMemoryBufferCallbackMap create_gpu_memory_buffer_requests_;
 105
 106   static BrowserGpuChannelHostFactory* instance_;
 107
 108   DISALLOW_COPY_AND_ASSIGN(BrowserGpuChannelHostFactory);
 109 };
 110
 111 }  // namespace content
 112
 113 #endif  // CONTENT_BROWSER_GPU_BROWSER_GPU_CHANNEL_HOST_FACTORY_H_