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135 lines
2.4 KiB
C++
135 lines
2.4 KiB
C++
/*
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VCO.h
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Copyright 2004-5 Tim Goetze <tim@quitte.de>
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http://quitte.de/dsp/
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an oversampled triangle/saw/square oscillator, and a combination of two
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such oscillators with hard sync.
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*/
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/*
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA or point your web browser to http://www.gnu.org.
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*/
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#ifndef _VCO_H_
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#define _VCO_H_
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#include "dsp/util.h"
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#include "dsp/VCO.h"
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#include "dsp/FIR.h"
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#include "dsp/sinc.h"
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#include "dsp/windows.h"
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class VCOs
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: public Plugin
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{
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public:
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sample_t f, gain;
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/* ok to just change these as you please, 4/32 works ok, sortof. */
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enum {
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OVERSAMPLE = 8,
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FIR_SIZE = 64,
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};
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DSP::TriSawSquare vco;
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/* downsampling filter */
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DSP::FIR down;
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template <sample_func_t F>
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void one_cycle (int frames);
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public:
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static PortInfo port_info[];
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VCOs()
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: down (FIR_SIZE)
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{ }
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void init();
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void activate()
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{
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gain = *ports[3];
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down.reset();
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vco.reset();
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}
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void run (int n)
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{
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one_cycle<store_func> (n);
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}
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void run_adding (int n)
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{
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one_cycle<adding_func> (n);
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}
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};
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/* //////////////////////////////////////////////////////////////////////// */
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class VCOd
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: public Plugin
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{
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public:
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double fs;
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sample_t f, gain;
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/* ok to just change these as you please, 4/32 works ok, sortof. */
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enum {
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OVERSAMPLE = 8,
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FIR_SIZE = 64,
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};
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DSP::VCO2 vco;
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/* downsampling filter */
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DSP::FIR down;
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template <sample_func_t F>
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void one_cycle (int frames);
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public:
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static PortInfo port_info[];
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VCOd()
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: down (FIR_SIZE)
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{ }
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void init();
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void activate()
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{
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gain = *ports[8];
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down.reset();
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vco.reset();
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}
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void run (int n)
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{
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one_cycle<store_func> (n);
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}
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void run_adding (int n)
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{
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one_cycle<adding_func> (n);
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}
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};
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#endif /* _VCO_H_ */
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