Poly.h

/* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009 Dean Beeler, Jerome Fisher
 * Copyright (C) 2011-2022 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_POLY_H
#define MT32EMU_POLY_H

#include "globals.h"
#include "internals.h"

namespace MT32Emu {

class Part;
class Partial;
struct PatchCache;

class Poly {
private:
    Part *part;
    unsigned int key;
    unsigned int velocity;
    unsigned int activePartialCount;
    bool sustain;

    PolyState state;

    Partial *partials[4];

    Poly *next;

    void setState(PolyState state);

public:
    Poly();
    void setPart(Part *usePart);
    void reset(unsigned int key, unsigned int velocity, bool sustain, Partial **partials);
    bool noteOff(bool pedalHeld);
    bool stopPedalHold();
    bool startDecay();
    bool startAbort();

    void backupCacheToPartials(PatchCache cache[4]);

    unsigned int getKey() const;
    unsigned int getVelocity() const;
    bool canSustain() const;
    PolyState getState() const;
    unsigned int getActivePartialCount() const;
    bool isActive() const;

    void partialDeactivated(Partial *partial);

    Poly *getNext() const;
    void setNext(Poly *poly);
}; // class Poly

} // namespace MT32Emu

#endif // #ifndef MT32EMU_POLY_H