content/common/gpu/gpu_memory_tracking.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_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
  13 namespace content {
  14
  15 class 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.
  19 class 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_