src/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 "content/common/content_export.h"
  10 #include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
  11
  12 namespace content {
  13 class GpuMemoryBufferImpl;
  14
  15 class CONTENT_EXPORT BrowserGpuMemoryBufferManager
  16     : public gpu::GpuMemoryBufferManager {
  17  public:
  18   typedef base::Callback<void(const gfx::GpuMemoryBufferHandle& handle)>
  19       AllocationCallback;
  20
  21   explicit BrowserGpuMemoryBufferManager(int gpu_client_id);
  22   ~BrowserGpuMemoryBufferManager() override;
  23
  24   static BrowserGpuMemoryBufferManager* current();
  25
  26   // Overridden from gpu::GpuMemoryBufferManager:
  27   scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
  28       const gfx::Size& size,
  29       gfx::GpuMemoryBuffer::Format format,
  30       gfx::GpuMemoryBuffer::Usage usage) override;
  31   gfx::GpuMemoryBuffer* GpuMemoryBufferFromClientBuffer(
  32       ClientBuffer buffer) override;
  33   void SetDestructionSyncPoint(gfx::GpuMemoryBuffer* buffer,
  34                                uint32 sync_point) override;
  35
  36   void AllocateGpuMemoryBufferForChildProcess(
  37       const gfx::Size& size,
  38       gfx::GpuMemoryBuffer::Format format,
  39       gfx::GpuMemoryBuffer::Usage usage,
  40       base::ProcessHandle child_process_handle,
  41       int child_client_id,
  42       const AllocationCallback& callback);
  43   void ChildProcessDeletedGpuMemoryBuffer(
  44       gfx::GpuMemoryBufferId id,
  45       base::ProcessHandle child_process_handle,
  46       int child_client_id,
  47       uint32 sync_point);
  48   void ProcessRemoved(base::ProcessHandle process_handle, int client_id);
  49
  50  private:
  51   struct AllocateGpuMemoryBufferRequest;
  52
  53   void GpuMemoryBufferAllocatedForChildProcess(
  54       base::ProcessHandle child_process_handle,
  55       int child_client_id,
  56       const AllocationCallback& callback,
  57       const gfx::GpuMemoryBufferHandle& handle);
  58
  59   static void AllocateGpuMemoryBufferOnIO(
  60       AllocateGpuMemoryBufferRequest* request);
  61   static void GpuMemoryBufferCreatedOnIO(
  62       AllocateGpuMemoryBufferRequest* request,
  63       scoped_ptr<GpuMemoryBufferImpl> buffer);
  64
  65   int gpu_client_id_;
  66
  67   typedef base::hash_map<gfx::GpuMemoryBufferId, gfx::GpuMemoryBufferType>
  68       BufferMap;
  69   typedef base::hash_map<int, BufferMap> ClientMap;
  70   ClientMap clients_;
  71
  72   DISALLOW_COPY_AND_ASSIGN(BrowserGpuMemoryBufferManager);
  73 };
  74
  75 }  // namespace content
  76
  77 #endif  // CONTENT_BROWSER_GPU_BROWSER_GPU_MEMORY_BUFFER_MANAGER_H_