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/* sc4pd
absdif, absdif~
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: Evan Parker & Keith Rowe: Dark Rags
*/
#include "sc4pd.hpp"
inline float sc_absdif (float a, float b)
{
float f=a-b;
return fabsf(f);
}
/* ------------------------ absdif~ -----------------------------*/
class absdif_ar
:public sc4pd_dsp
{
FLEXT_HEADER(absdif_ar,sc4pd_dsp);
public:
absdif_ar(int argc,t_atom * argv);
protected:
virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
private:
};
FLEXT_LIB_DSP_V("absdif~",absdif_ar);
absdif_ar::absdif_ar(int argc,t_atom * argv)
{
AddInSignal();
AddInSignal();
AddOutSignal();
}
void absdif_ar::m_signal(int n, t_sample *const *in,
t_sample *const *out)
{
t_sample *nout = *out;
t_sample *nin1 = *in;
t_sample *nin2 = *(in+1);
for (int i = 0; i!= n;++i)
{
if( *nin2 > 0)
(*(nout)++) = sc_absdif( (*(nin1)++), (*(nin2)++) );
}
}
/* ------------------------ absdif ------------------------------*/
class absdif_kr
:public flext_base
{
FLEXT_HEADER(absdif_kr,flext_base);
public:
absdif_kr(int argc,t_atom * argv);
protected:
void m_perform(float f);
void m_set(float f);
private:
float b;
FLEXT_CALLBACK_F(m_perform);
FLEXT_CALLBACK_F(m_set);
};
FLEXT_LIB_V("absdif",absdif_kr);
absdif_kr::absdif_kr(int argc,t_atom * argv)
:b(0)
{
AddInFloat();
AddInFloat();
AddOutFloat();
FLEXT_ADDMETHOD(0,m_perform);
FLEXT_ADDMETHOD(1,m_set);
}
void absdif_kr::m_perform(float f)
{
ToOutFloat(0,sc_absdif(f,b));
}
void absdif_kr::m_set(float f)
{
b=f;
}
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