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- /*
- ZynAddSubFX - a software synthesizer
-
- Envelope.h - Envelope implementation
- Copyright (C) 2002-2004 Nasca Octavian Paul
- Author: Nasca Octavian Paul
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of version 2 of the GNU General Public License
- as published by the Free Software Foundation.
-
- 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 (version 2) for more details.
-
- You should have received a copy of the GNU General Public License (version 2)
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- */
-
- #ifndef ENVELOPE_H
- #define ENVELOPE_H
-
- #include <math.h>
- #include "../globals.h"
- #include "../Params/EnvelopeParams.h"
-
- class Envelope{
- public:
- Envelope(EnvelopeParams *envpars,REALTYPE basefreq);
- ~Envelope();
- void relasekey();
- REALTYPE envout();
- REALTYPE envout_dB();
- int finished();//returns 1 if the envelope is finished
- private:
- int envpoints;
- int envsustain;//"-1" means disabled
- REALTYPE envdt[MAX_ENVELOPE_POINTS];//millisecons
- REALTYPE envval[MAX_ENVELOPE_POINTS];// [0.0 .. 1.0]
- REALTYPE envstretch;
- int linearenvelope;
-
- int currentpoint; //current envelope point (starts from 1)
- int forcedrelase;
- char keyreleased; //if the key was released
- char envfinish;
- REALTYPE t; // the time from the last point
- REALTYPE inct;// the time increment
- REALTYPE envoutval;//used to do the forced release
- };
-
-
- #endif
-
-
-