1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58


ash / components / arc / video_accelerator / gpu_arc_video_protected_buffer_allocator.h [blame]

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef ASH_COMPONENTS_ARC_VIDEO_ACCELERATOR_GPU_ARC_VIDEO_PROTECTED_BUFFER_ALLOCATOR_H_
#define ASH_COMPONENTS_ARC_VIDEO_ACCELERATOR_GPU_ARC_VIDEO_PROTECTED_BUFFER_ALLOCATOR_H_

#include <memory>

#include "ash/components/arc/mojom/video_protected_buffer_allocator.mojom.h"
#include "base/threading/thread_checker.h"
#include "mojo/public/cpp/system/handle.h"

namespace arc {
class ProtectedBufferAllocator;
class ProtectedBufferManager;

// GpuArcProtectedBufferAllocator runs in the GPU process.
// It takes allocating/releasing protected buffer request from ARC via IPC
// channel.
// Closing Mojo IPC message pipe to this instance will automatically release
// all buffers allocated for this instance.
class GpuArcVideoProtectedBufferAllocator
    : public mojom::VideoProtectedBufferAllocator {
 public:
  GpuArcVideoProtectedBufferAllocator(
      const GpuArcVideoProtectedBufferAllocator&) = delete;
  GpuArcVideoProtectedBufferAllocator& operator=(
      const GpuArcVideoProtectedBufferAllocator&) = delete;

  ~GpuArcVideoProtectedBufferAllocator() override;

  static std::unique_ptr<GpuArcVideoProtectedBufferAllocator> Create(
      scoped_refptr<ProtectedBufferManager> protected_buffer_manager);

  // Implementation of mojom::VideoProtectedBufferAllocator
  void AllocateProtectedSharedMemory(
      mojo::ScopedHandle handle_fd,
      uint64_t size,
      AllocateProtectedSharedMemoryCallback callback) override;
  void AllocateProtectedNativePixmap(
      mojo::ScopedHandle handle_fd,
      mojom::HalPixelFormat format,
      const gfx::Size& picture_size,
      AllocateProtectedNativePixmapCallback callback) override;
  void ReleaseProtectedBuffer(mojo::ScopedHandle handle_fd) override;

 private:
  explicit GpuArcVideoProtectedBufferAllocator(
      std::unique_ptr<ProtectedBufferAllocator> protected_buffer_allocator);

  const std::unique_ptr<ProtectedBufferAllocator> protected_buffer_allocator_;

  THREAD_CHECKER(thread_checker_);
};
}  // namespace arc

#endif  // ASH_COMPONENTS_ARC_VIDEO_ACCELERATOR_GPU_ARC_VIDEO_PROTECTED_BUFFER_ALLOCATOR_H_