content/browser/gpu/browser_gpu_memory_buffer_manager.h

   1 // Copyright 2014 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_MEMORY_BUFFER_MANAGER_H_
   6 #define CONTENT_BROWSER_GPU_BROWSER_GPU_MEMORY_BUFFER_MANAGER_H_
   7
   8 #include "base/callback.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "content/common/content_export.h"
  11 #include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
  12
  13 namespace content {
  14 class GpuMemoryBufferFactoryHost;
  15 class GpuMemoryBufferImpl;
  16
  17 class CONTENT_EXPORT BrowserGpuMemoryBufferManager
  18     : public gpu::GpuMemoryBufferManager {
  19  public:
  20   typedef base::Callback<void(const gfx::GpuMemoryBufferHandle& handle)>
  21       AllocationCallback;
  22
  23   BrowserGpuMemoryBufferManager(
  24       GpuMemoryBufferFactoryHost* gpu_memory_buffer_factory_host,
  25       int gpu_client_id);
  26   ~BrowserGpuMemoryBufferManager() override;
  27
  28   static BrowserGpuMemoryBufferManager* current();
  29
  30   // Overridden from gpu::GpuMemoryBufferManager:
  31   scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
  32       const gfx::Size& size,
  33       gfx::GpuMemoryBuffer::Format format,
  34       gfx::GpuMemoryBuffer::Usage usage) override;
  35   gfx::GpuMemoryBuffer* GpuMemoryBufferFromClientBuffer(
  36       ClientBuffer buffer) override;
  37   void SetDestructionSyncPoint(gfx::GpuMemoryBuffer* buffer,
  38                                uint32 sync_point) override;
  39
  40   // Virtual for testing.
  41   virtual scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBufferForScanout(
  42       const gfx::Size& size,
  43       gfx::GpuMemoryBuffer::Format format,
  44       int32 surface_id);
  45   void AllocateGpuMemoryBufferForChildProcess(
  46       const gfx::Size& size,
  47       gfx::GpuMemoryBuffer::Format format,
  48       gfx::GpuMemoryBuffer::Usage usage,
  49       base::ProcessHandle child_process_handle,
  50       int child_client_id,
  51       const AllocationCallback& callback);
  52   void ChildProcessDeletedGpuMemoryBuffer(
  53       gfx::GpuMemoryBufferId id,
  54       base::ProcessHandle child_process_handle,
  55       int child_client_id,
  56       uint32 sync_point);
  57   void ProcessRemoved(base::ProcessHandle process_handle, int client_id);
  58
  59  private:
  60   struct AllocateGpuMemoryBufferRequest;
  61
  62   scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBufferCommon(
  63       const gfx::Size& size,
  64       gfx::GpuMemoryBuffer::Format format,
  65       gfx::GpuMemoryBuffer::Usage usage,
  66       int32 surface_id);
  67   void AllocateGpuMemoryBufferOnIO(AllocateGpuMemoryBufferRequest* request);
  68   void GpuMemoryBufferAllocatedOnIO(AllocateGpuMemoryBufferRequest* request,
  69                                     const gfx::GpuMemoryBufferHandle& handle);
  70   void GpuMemoryBufferDeleted(gfx::GpuMemoryBufferId id,
  71                               int client_id,
  72                               uint32 sync_point);
  73   void GpuMemoryBufferAllocatedForChildProcess(
  74       int child_client_id,
  75       const AllocationCallback& callback,
  76       const gfx::GpuMemoryBufferHandle& handle);
  77
  78   GpuMemoryBufferFactoryHost* gpu_memory_buffer_factory_host_;
  79   int gpu_client_id_;
  80
  81   typedef base::hash_map<gfx::GpuMemoryBufferId, gfx::GpuMemoryBufferType>
  82       BufferMap;
  83   typedef base::hash_map<int, BufferMap> ClientMap;
  84   ClientMap clients_;
  85
  86   base::WeakPtrFactory<BrowserGpuMemoryBufferManager> weak_ptr_factory_;
  87
  88   DISALLOW_COPY_AND_ASSIGN(BrowserGpuMemoryBufferManager);
  89 };
  90
  91 }  // namespace content
  92
  93 #endif  // CONTENT_BROWSER_GPU_BROWSER_GPU_MEMORY_BUFFER_MANAGER_H_