src/mt32/DelayReverb.h

/* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009 Dean Beeler, Jerome Fisher
 * Copyright (C) 2011, 2012, 2013 Dean Beeler, Jerome Fisher, Sergey V. Mikayev
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation, either version 2.1 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 Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MT32EMU_DELAYREVERB_H
#define MT32EMU_DELAYREVERB_H

namespace MT32Emu {

class DelayReverb : public ReverbModel {
private:
        Bit8u time;
        Bit8u level;

        Bit32u bufIx;
        float *buf;

        Bit32u delayLeft;
        Bit32u delayRight;
        Bit32u delayFeedback;

        float amp;
        float feedback;

        void recalcParameters();

public:
        DelayReverb();
        ~DelayReverb();
        void open();
        void close();
        void setParameters(Bit8u newTime, Bit8u newLevel);
        void process(const float *inLeft, const float *inRight, float *outLeft, float *outRight, unsigned long numSamples);
        bool isActive() const;

        void saveState( std::ostream &stream );
        void loadState( std::istream &stream );
};
}
#endif