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      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_
     58