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Viewing changes to arts/modules/synth_wave_softsaw_impl.cc

  • Committer: Bazaar Package Importer
  • Author(s): Martin Schulze
  • Date: 2003-01-22 15:00:51 UTC
  • Revision ID: james.westby@ubuntu.com-20030122150051-uihwkdoxf15mi1tn
Tags: upstream-2.2.2
Import upstream version 2.2.2

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arts/modules/synth_wave_softsaw_impl.cc
 
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    /*
 
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    Copyright (C) 2000 Jeff Tranter
 
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                       tranter@pobox.com
 
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    This library is free software; you can redistribute it and/or
 
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    modify it under the terms of the GNU Library General Public
 
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    License as published by the Free Software Foundation; either
 
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    version 2 of the License, or (at your option) any later version.
 
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    This library is distributed in the hope that it will be useful,
 
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 
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    Library General Public License for more details.
 
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    You should have received a copy of the GNU Library General Public License
 
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    along with this library; see the file COPYING.LIB.  If not, write to
 
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    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 
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    Boston, MA 02111-1307, USA.
 
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    */
 
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#include <math.h>
 
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#include "artsmodules.h"
 
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#include "stdsynthmodule.h"
 
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using namespace Arts;
 
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namespace Arts {
 
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// This is a sawtooth that has it's trough rounded off using a cosine
 
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// wave.
 
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class Synth_WAVE_SOFTSAW_impl : virtual public Synth_WAVE_SOFTSAW_skel,
 
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                                                        virtual public StdSynthModule
 
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{
 
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public:
 
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        void calculateBlock(unsigned long cycles)
 
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        {
 
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                for(unsigned long i=0; i<cycles; i++)
 
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                        if ((pos[i] < 0.1) || (pos[i] > 0.9))
 
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                                outvalue[i] = 1 - pos[i] * 2;
 
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                        else
 
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                                outvalue[i] = cos(pos[i]*2*M_PI);
 
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        }
 
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};
 
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REGISTER_IMPLEMENTATION(Synth_WAVE_SOFTSAW_impl);
 
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};