sdm/libs/hwc/cpuhint.h

/* Copyright (c) 2015, The Linux Foundataion. All rights reserved.
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#ifndef __CPUHINT_H__
#define __CPUHINT_H__

#include <core/sdm_types.h>

namespace sdm {

class HWCDebugHandler;

class CPUHint {
 public:
  ~CPUHint();
  DisplayError Init(HWCDebugHandler *debug_handler);
  void Set();
  void Reset();

 private:
  enum { HINT =  0x4501 /* 45-display layer hint, 01-Enable */ };
  bool enabled_ = false;
  // frames to wait before setting this hint
  int pre_enable_window_ = 0;
  int frame_countdown_ = 0;
  int lock_handle_ = 0;
  bool lock_acquired_ = false;
  void *lib_handle_ = NULL;
  int (*fn_lock_acquire_)(int handle, int duration, int *hints, int num_args) = NULL;
  int (*fn_lock_release_)(int value) = NULL;
};

}  // namespace sdm

#endif  // __CPUHINT_H__