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53 lines
1.5 KiB
53 lines
1.5 KiB
/*
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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., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "artsmodulessynth.h"
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#include "stdsynthmodule.h"
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using namespace Arts;
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// A square wave with a programmable duty cycle. The duty cycle should
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// be in the range 0..1.
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class Synth_WAVE_PULSE_impl : virtual public Synth_WAVE_PULSE_skel,
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virtual public StdSynthModule
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{
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protected:
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float _dutycycle;
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public:
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float dutycycle() { return _dutycycle; }
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void dutycycle(float newDutycycle) { _dutycycle = newDutycycle; }
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void calculateBlock(unsigned long samples)
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{
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unsigned long i;
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for(i=0;i<samples;i++)
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{
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outvalue[i] = (pos[i] < _dutycycle) ? 1.0 : -1.0;
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}
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}
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};
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REGISTER_IMPLEMENTATION(Synth_WAVE_PULSE_impl);
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