Adsr.h

Go to the documentation of this file.

/*
 * Hydrogen
 * Copyright(c) 2002-2008 by Alex >Comix< Cominu [comix@users.sourceforge.net]
 * Copyright(c) 2008-2024 The hydrogen development team [hydrogen-devel@lists.sourceforge.net]
 *
 * http://www.hydrogen-music.org
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY, without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see https://www.gnu.org/licenses
 *
 */
 
#ifndef H2C_ADSR_H
#define H2C_ADSR_H
 
#include <core/Object.h>
 
#include <memory>
 
namespace H2Core
{
 
class ADSR : public Object<ADSR>
{
                H2_OBJECT(ADSR)
        public:
 
                ADSR ( unsigned int attack = 0, unsigned int decay = 0, float sustain = 1.0, unsigned int release = 1000 );
 
                ADSR( const std::shared_ptr<ADSR> other );
 
                ~ADSR();
 
                void setAttack( unsigned int value );
                unsigned int getAttack();
                void setDecay( unsigned int value );
                unsigned int getDecay();
                void setSustain( float value );
                float getSustain();
                void setRelease( unsigned int value );
                unsigned int getRelease();
 
 
                void attack();
                float release();
 
                bool applyADSR( float *pLeft, float *pRight, int nFinalBufferPos, int nReleaseFrame, float fStep );
 
                enum class State {
                        Attack = 0,
                        Decay,
                        Sustain,
                        Release,
                        Idle
                };
        static QString StateToQString( State state );
 
                State getState() const;
 
                QString toQString( const QString& sPrefix = "", bool bShort = true ) const override;
        private:
        
                unsigned int m_nAttack;         
                unsigned int m_nDecay;          
                float m_fSustain;                       
                unsigned int m_nRelease;                
                State m_state;      
                float m_fFramesInState;
                float m_fValue;          
                float m_fReleaseValue;  
 
                double m_fQ;                            
 
                void normalise();
};
 
// DEFINITIONS
 
inline void ADSR::setAttack( unsigned int value )
{
        m_nAttack = value;
}
 
inline unsigned int ADSR::getAttack()
{
        return m_nAttack;
}
 
inline void ADSR::setDecay( unsigned int value )
{
        m_nDecay = value;
}
 
inline unsigned int ADSR::getDecay()
{
        return m_nDecay;
}
 
inline void ADSR::setSustain( float value )
{
        m_fSustain = value;
}
 
inline float ADSR::getSustain()
{
        return m_fSustain;
}
 
inline void ADSR::setRelease( unsigned int value )
{
        m_nRelease = value;
}
 
inline unsigned int ADSR::getRelease()
{
        return m_nRelease;
}
inline ADSR::State ADSR::getState() const {
        return m_state;
}
 
};
 
#endif // H2C_ADRS_H
 
/* vim: set softtabstop=4 noexpandtab: */