engines/gig/EGDecay.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *   Copyright (C) 2005, 2007 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=%d, DecayTime=%f\n", Depth, DecayTime));
    }

}} // namespace LinuxSampler::gig
1	schoenebeck	53	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5	schoenebeck	56	* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	schoenebeck	1149	* Copyright (C) 2005, 2007 Christian Schoenebeck *
7	schoenebeck	53	* *
8	schoenebeck	738	* This library is free software; you can redistribute it and/or modify *
9	schoenebeck	53	* 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	schoenebeck	738	* This library is distributed in the hope that it will be useful, *
14	schoenebeck	53	* 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	schoenebeck	738	* along with this library; if not, write to the Free Software *
20	schoenebeck	53	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21			* MA 02111-1307 USA *
22			***************************************************************************/
23
24			#include "EGDecay.h"
25
26	schoenebeck	1424	#include "../../common/global_private.h"
27
28	schoenebeck	53	namespace LinuxSampler { namespace gig {
29
30	schoenebeck	738	EGDecay::EGDecay() {
31	schoenebeck	53	}
32
33	schoenebeck	738	void EGDecay::trigger(float Depth, float DecayTime, unsigned int SampleRate) {
34			this->Level = Depth;
35	schoenebeck	53
36			// calculate decay parameters (lin. curve)
37	schoenebeck	738	StepsLeft = (int) (DecayTime * SampleRate);
38	schoenebeck	1149	Coeff = (StepsLeft) ? (1.0f - Depth) / (float) StepsLeft : 0.0f;
39	schoenebeck	53
40			dmsg(4,("Depth=%d, DecayTime=%f\n", Depth, DecayTime));
41			}
42
43			}} // namespace LinuxSampler::gig