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Viewing changes to plugins/ladspa_effect/caps/SweepVF.h

  • Committer: Bazaar Package Importer
  • Author(s): Tobias Doerffel
  • Date: 2007-09-17 15:00:24 UTC
  • mfrom: (1.1.4 upstream)
  • Revision ID: james.westby@ubuntu.com-20070917150024-mo0zk4ks81jawqii
Tags: 0.3.0-1ubuntu1
https://launchpad.net/bugs/139759
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https://launchpad.net/bugs/121172
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* Resynchronized with Debian (LP: #139759, LP: #90806, LP: #102639,
  LP: #113447, LP: #121172, LP: #124890)
* reverted changes from 0.2.1-1.1ubuntu1 as upstream merged/included them

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plugins/ladspa_effect/caps/SweepVF.h
 
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/*
 
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        SweepVF.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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        SweepVFI, a lorenz fractal modulating the cutoff frequency of a 
 
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        state-variable (ladder) filter.
 
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        SweepVFII, the same with Q being modulated by a second fractal.
 
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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 _SWEEP_VF_H_
 
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#define _SWEEP_VF_H_
 
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#include "dsp/SVF.h"
 
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#include "dsp/Lorenz.h"
 
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#include "dsp/Roessler.h"
 
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class SweepVFI
 
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{
 
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        public:
 
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                double fs;
 
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                /* svf parameters */
 
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                d_sample f, Q;
 
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                /* needs to be a power of two */
 
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                enum {
 
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                        BLOCK_SIZE = 32
 
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                };
 
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                DSP::StackedSVF<1,2> svf;
 
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                DSP::Lorenz lorenz;
 
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                d_sample normal;
 
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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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                d_sample * ports [9];
 
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                d_sample adding_gain;
 
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                void init (double _fs);
 
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                void activate();
 
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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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class SweepVFII
 
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{
 
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        public:
 
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                double fs;
 
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                /* svf parameters */
 
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                d_sample f, Q;
 
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                /* needs to be a power of two */
 
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                enum {
 
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                        BLOCK_SIZE = 32
 
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                };
 
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                DSP::StackedSVF<1,2> svf;
 
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                DSP::Lorenz lorenz1;
 
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                DSP::Lorenz lorenz2;
 
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                d_sample normal;
 
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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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                d_sample * ports [13];
 
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                d_sample adding_gain;
 
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                void init (double _fs);
 
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                void activate();
 
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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 /* _SWEEP_VF_H_ */