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/* sc4pd:
Dust, Dust~
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: Assif Tsahar & Tatsuya Nakatani: Come Sunday
*/
#include "sc4pd.hpp"
/* ------------------------ Dust~ -------------------------------------*/
class Dust_ar:
public sc4pd_dsp
{
FLEXT_HEADER(Dust_ar,sc4pd_dsp);
public:
Dust_ar(int argc, t_atom *argv);
protected:
virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
virtual void m_dsp (int n,t_signalvec const * insigs,
t_signalvec const * outsigs);
void m_set(float f)
{
m_density = f;
m_thresh = m_density/Samplerate();
m_scale = m_thresh > 0.f ? 1.f / m_thresh : 0.f;
}
void m_seed(int i)
{
rgen.init(i);
}
private:
FLEXT_CALLBACK_F(m_set);
FLEXT_CALLBACK_I(m_seed);
float m_density, m_thresh, m_scale;
RGen rgen;
};
FLEXT_LIB_DSP_V("Dust~",Dust_ar);
Dust_ar::Dust_ar(int argc, t_atom *argv)
{
FLEXT_ADDMETHOD_(0,"set",m_set);
FLEXT_ADDMETHOD_(0,"seed",m_seed);
//parse arguments
AtomList Args(argc,argv);
m_density=sc_getfloatarg(Args,0);
rgen.init(timeseed());
AddOutSignal();
}
void Dust_ar::m_dsp(int n,t_signalvec const * insigs,
t_signalvec const * outsigs)
{
m_thresh = m_density/Samplerate();
m_scale = m_thresh > 0.f ? 1.f / m_thresh : 0.f;
}
void Dust_ar::m_signal(int n, t_sample *const *in,
t_sample *const *out)
{
t_sample *nout = *out;
RGET;
float thresh = m_thresh;
float scale = m_scale;
for (int i = 0; i!= n;++i)
{
float z = frand(s1,s2,s3);
if (z < thresh)
(*(nout)++) = z * scale;
else
(*(nout)++) = 0.f;
}
RPUT;
}
/* ------------------------ Dust ---------------------------------------*/
class Dust_kr:
public flext_base
{
FLEXT_HEADER(Dust_kr,flext_base);
public:
Dust_kr(int argc, t_atom *argv);
protected:
void m_set(float f);
Timer Dust_timer;
void m_doit(void*);
void m_seed(int i)
{
rgen.init(i);
}
private:
float m_density, m_scale;
float mtbt; //medium time between trigger
RGen rgen;
FLEXT_CALLBACK_1(m_set,float);
FLEXT_CALLBACK_T(m_doit);
FLEXT_CALLBACK_I(m_seed);
};
FLEXT_LIB_V("Dust",Dust_kr);
Dust_kr::Dust_kr(int argc, t_atom *argv)
: Dust_timer(false)
{
FLEXT_ADDMETHOD(0,m_set);
FLEXT_ADDMETHOD_(0,"seed",m_seed);
//parse arguments
AtomList Args(argc,argv);
m_density=sc_getfloatarg(Args,0);
rgen.init(timeseed());
AddOutFloat();
FLEXT_ADDTIMER(Dust_timer,m_doit);
m_set(m_density);
}
void Dust_kr::m_set(float f)
{
Dust_timer.Reset();
if(f==0)
{
return;
}
m_density = f;
mtbt = 1/f*1000;
Dust_timer.Delay(mtbt * 0.002 * rgen.frand());
}
void Dust_kr::m_doit(void*)
{
ToOutFloat(0,rgen.frand());
Dust_timer.Delay(mtbt * 0.002 * rgen.frand());
}
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