project64/Source/Project64-core/N64System/SpeedLimiterClass.h

/****************************************************************************
*                                                                           *
* Project64 - A Nintendo 64 emulator.                                      *
* http://www.pj64-emu.com/                                                  *
* Copyright (C) 2012 Project64. All rights reserved.                        *
*                                                                           *
* License:                                                                  *
* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html                        *
*                                                                           *
****************************************************************************/
#pragma once

#include "../Settings/GameSettings.h"

class CSpeedLimiter :
    private CGameSettings
{
public:
    CSpeedLimiter();
    ~CSpeedLimiter();

    void SetHertz(const uint32_t Hertz);
    bool Timer_Process(uint32_t* const FrameRate);
    void IncreaseSpeed();
    void DecreaseSpeed();

private:
    CSpeedLimiter(const CSpeedLimiter&);            // Disable copy constructor
    CSpeedLimiter& operator=(const CSpeedLimiter&); // Disable assignment

    void FixSpeedRatio();

    uint32_t  m_Speed, m_BaseSpeed, m_Frames, m_LastTime;
    double m_Ratio;
};