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_COMMON_GPU_GPU_MEMORY_TRACKING_H_
6#define CONTENT_COMMON_GPU_GPU_MEMORY_TRACKING_H_
7
8#include "base/basictypes.h"
9#include "base/process/process.h"
10#include "content/common/content_export.h"
11#include "gpu/command_buffer/service/memory_tracking.h"
12
13namespace content {
14
15class GpuMemoryManager;
16
17// All decoders in a context group point to a single GpuMemoryTrackingGroup,
18// which tracks GPU resource consumption for the entire context group.
19class CONTENT_EXPORT GpuMemoryTrackingGroup {
20 public:
21  ~GpuMemoryTrackingGroup();
22  void TrackMemoryAllocatedChange(
23      uint64 old_size,
24      uint64 new_size,
25      gpu::gles2::MemoryTracker::Pool tracking_pool);
26  bool EnsureGPUMemoryAvailable(uint64 size_needed);
27  base::ProcessId GetPid() const {
28    return pid_;
29  }
30  uint64 GetSize() const {
31    return size_;
32  }
33  gpu::gles2::MemoryTracker* GetMemoryTracker() const {
34    return memory_tracker_;
35  }
36
37 private:
38  friend class GpuMemoryManager;
39
40  GpuMemoryTrackingGroup(base::ProcessId pid,
41                         gpu::gles2::MemoryTracker* memory_tracker,
42                         GpuMemoryManager* memory_manager);
43
44  base::ProcessId pid_;
45  uint64 size_;
46
47  // Set and used only during the Manage function, to determine which
48  // non-surface clients should be hibernated.
49  bool hibernated_;
50
51  gpu::gles2::MemoryTracker* memory_tracker_;
52  GpuMemoryManager* memory_manager_;
53};
54
55}  // namespace content
56
57#endif // CONTENT_COMMON_GPU_GPU_MEMORY_TRACKING_H_
58