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/* sc4pd
LinRand, LinRand~
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: Jim O'Rourke & Loren Mazzacane Connors: In Bern
*/
#include "sc4pd.hpp"
/* ------------------------ LinRand~ -------------------------------*/
class LinRand_ar:
public sc4pd_dsp
{
FLEXT_HEADER(LinRand_ar,sc4pd_dsp);
public:
LinRand_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_sample *const *in, t_sample *const *out);
void m_seed(int i)
{
rgen.init(i);
}
private:
float m_sample;
float lo;
float hi;
int sc_n;
RGen rgen;
FLEXT_CALLBACK_I(m_seed);
};
FLEXT_LIB_DSP_V("LinRand~",LinRand_ar);
LinRand_ar::LinRand_ar(int argc, t_atom *argv)
{
FLEXT_ADDMETHOD_(0,"seed",m_seed);
AtomList Args(argc,argv);
if (Args.Count() != 3)
{
post("not enough arguments");
return;
}
lo=sc_getfloatarg(Args,0);
hi=sc_getfloatarg(Args,1);
sc_n=sc_getfloatarg(Args,2);
rgen.init(timeseed());
AddOutSignal();
}
void LinRand_ar::m_dsp(int n, t_sample *const *in, t_sample *const *out)
{
float range = hi - lo;
float a, b;
a = rgen.frand();
b = rgen.frand();
if (sc_n <= 0) {
m_sample = sc_min(a, b) * range + lo;
} else {
m_sample = sc_max(a, b) * range + lo;
}
}
void LinRand_ar::m_signal(int n, t_sample *const *in,
t_sample *const *out)
{
t_sample *nout = *out;
float sample = m_sample;
for (int i = 0; i!= n;++i)
{
(*(nout)++) = sample;
}
}
/* ------------------------ LinRand ---------------------------------*/
class LinRand_kr:
public flext_base
{
FLEXT_HEADER(LinRand_kr,flext_base);
public:
LinRand_kr(int argc, t_atom *argv);
protected:
void m_loadbang();
void m_seed(int i)
{
rgen.init(i);
}
private:
float lo;
float hi;
int sc_n;
RGen rgen;
FLEXT_CALLBACK_I(m_seed);
};
FLEXT_LIB_V("LinRand",LinRand_kr);
LinRand_kr::LinRand_kr(int argc, t_atom *argv)
{
FLEXT_ADDMETHOD_(0,"seed",m_seed);
AtomList Args(argc,argv);
if (Args.Count() != 3)
{
post("not enough arguments");
return;
}
lo=sc_getfloatarg(Args,0);
hi=sc_getfloatarg(Args,1);
sc_n=sc_getfloatarg(Args,2);
rgen.init(timeseed());
AddOutFloat();
}
void LinRand_kr::m_loadbang()
{
float range = hi - lo;
float a, b;
a = rgen.frand();
b = rgen.frand();
if (sc_n <= 0) {
ToOutFloat(0,sc_min(a, b) * range + lo);
} else {
ToOutFloat(0,sc_max(a, b) * range + lo);
}
}
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