engines/gig/EGDecay.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *   Copyright (C) 2005 - 2015 Christian Schoenebeck                       *
 *                                                                         *
 *   This library 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 library 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 library; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#include "EGDecay.h"

#include "../../common/global_private.h"

namespace LinuxSampler { namespace gig {

    EGDecay::EGDecay() {
    }

    void EGDecay::trigger(float Depth, float DecayTime, unsigned int SampleRate) {
        this->Level = Depth;

        // calculate decay parameters (lin. curve)
        StepsLeft = (int) (DecayTime * SampleRate);
        Coeff     = (StepsLeft) ? (1.0f - Depth) / (float) StepsLeft : 0.0f;

        dmsg(4,("Depth=%f, DecayTime=%f\n", Depth, DecayTime));
    }

}} // namespace LinuxSampler::gig
1	/***************************************************************************
2	* *
3	* LinuxSampler - modular, streaming capable sampler *
4	* *
5	* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	* Copyright (C) 2005 - 2015 Christian Schoenebeck *
7	* *
8	* This library is free software; you can redistribute it and/or modify *
9	* it under the terms of the GNU General Public License as published by *
10	* the Free Software Foundation; either version 2 of the License, or *
11	* (at your option) any later version. *
12	* *
13	* This library is distributed in the hope that it will be useful, *
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16	* GNU General Public License for more details. *
17	* *
18	* You should have received a copy of the GNU General Public License *
19	* along with this library; if not, write to the Free Software *
20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21	* MA 02111-1307 USA *
22	***************************************************************************/
23
24	#include "EGDecay.h"
25
26	#include "../../common/global_private.h"
27
28	namespace LinuxSampler { namespace gig {
29
30	EGDecay::EGDecay() {
31	}
32
33	void EGDecay::trigger(float Depth, float DecayTime, unsigned int SampleRate) {
34	this->Level = Depth;
35
36	// calculate decay parameters (lin. curve)
37	StepsLeft = (int) (DecayTime * SampleRate);
38	Coeff = (StepsLeft) ? (1.0f - Depth) / (float) StepsLeft : 0.0f;
39
40	dmsg(4,("Depth=%f, DecayTime=%f\n", Depth, DecayTime));
41	}
42
43	}} // namespace LinuxSampler::gig