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/* sc4pd
Latoocarfian, Latoocarfian~
Copyright (c) 2004 Tim Blechmann.
This code is derived from:
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
http://www.audiosynth.com
This program 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 program 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 program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Based on:
PureData by Miller Puckette and others.
http://www.crca.ucsd.edu/~msp/software.html
FLEXT by Thomas Grill
http://www.parasitaere-kapazitaeten.net/ext
SuperCollider by James McCartney
http://www.audiosynth.com
Coded while listening to: Keith Rowe & John Tilbury: Duos For Doris
*/
#include "sc4pd.hpp"
/* ------------------------ Latoocarfian~ -------------------------------*/
class Latoocarfian_ar:
public flext_dsp
{
FLEXT_HEADER(Latoocarfian_ar,flext_dsp);
public:
Latoocarfian_ar(int argc, t_atom *argv);
protected:
virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
void m_set_a(float f)
{
m_a = f;
}
void m_set_b(float f)
{
m_b = f;
}
void m_set_c(float f)
{
m_c = f;
}
void m_set_d(float f)
{
m_d = f;
}
private:
float m_x, m_y; //state
float m_a, m_b, m_c, m_d; //parameters
FLEXT_CALLBACK_F(m_set_a);
FLEXT_CALLBACK_F(m_set_b);
FLEXT_CALLBACK_F(m_set_c);
FLEXT_CALLBACK_F(m_set_d);
};
FLEXT_LIB_DSP_V("Latoocarfian~",Latoocarfian_ar);
Latoocarfian_ar::Latoocarfian_ar(int argc, t_atom *argv)
:m_x(4),m_y(1)
{
FLEXT_ADDMETHOD_(0,"a",m_set_a);
FLEXT_ADDMETHOD_(0,"b",m_set_b);
FLEXT_ADDMETHOD_(0,"c",m_set_c);
FLEXT_ADDMETHOD_(0,"d",m_set_d);
//parse arguments
AtomList Args(argc,argv);
if (Args.Count()!=4)
{
post("4 arguments needed");
}
m_a = sc_getfloatarg(Args,0);
m_b = sc_getfloatarg(Args,1);
m_c = sc_getfloatarg(Args,2);
m_d = sc_getfloatarg(Args,3);
AddOutSignal();
AddOutSignal(); // supercollider is only using the x coordinate
}
void Latoocarfian_ar::m_signal(int n, t_sample *const *in,
t_sample *const *out)
{
t_sample *xout = *out;
t_sample *yout = *(out+1);
float a = m_a;
float b = m_b;
float c = m_c;
float d = m_d;
float x = m_x;
float y = m_y;
for (int i = 0; i!= n;++i)
{
float x_new=sin(y*b)+c*sin(x*b);
float y_new=sin(x*a)+d*sin(y*a);
(*(xout)++)=x=x_new;
(*(yout)++)=y=y_new;
}
m_x = x;
m_y = y;
}
/* ------------------------ Latoocarfian ---------------------------------*/
class Latoocarfian_kr:
public flext_base
{
FLEXT_HEADER(Latoocarfian_kr,flext_base);
public:
Latoocarfian_kr(int argc, t_atom *argv);
protected:
void m_perform();
void m_set_a(float f)
{
m_a = f;
}
void m_set_b(float f)
{
m_b = f;
}
void m_set_c(float f)
{
m_c = f;
}
void m_set_d(float f)
{
m_d = f;
}
private:
float m_x, m_y; //state
float m_a, m_b, m_c, m_d; //parameters
FLEXT_CALLBACK_F(m_set_a);
FLEXT_CALLBACK_F(m_set_b);
FLEXT_CALLBACK_F(m_set_c);
FLEXT_CALLBACK_F(m_set_d);
FLEXT_CALLBACK(m_perform);
};
FLEXT_LIB_V("Latoocarfian",Latoocarfian_kr);
Latoocarfian_kr::Latoocarfian_kr(int argc, t_atom *argv)
:m_x(1),m_y(1)
{
FLEXT_ADDMETHOD_(0,"a",m_set_a);
FLEXT_ADDMETHOD_(0,"b",m_set_b);
FLEXT_ADDMETHOD_(0,"c",m_set_c);
FLEXT_ADDMETHOD_(0,"d",m_set_d);
FLEXT_ADDBANG(0,m_perform);
//parse arguments
AtomList Args(argc,argv);
if (Args.Count()!=4)
{
post("4 arguments needed");
}
m_a = sc_getfloatarg(Args,0);
m_b = sc_getfloatarg(Args,1);
m_c = sc_getfloatarg(Args,2);
m_d = sc_getfloatarg(Args,3);
AddOutFloat();
AddOutFloat(); // one outlet more than sc
}
void Latoocarfian_kr::m_perform()
{
m_x=sin(m_y*m_b)+m_c*sin(m_x*m_b);
m_y=sin(m_x*m_a)+m_d*sin(m_y*m_a);
ToOutFloat(0,m_x);
ToOutFloat(1,m_y);
}
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