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/* sIgpAck
* for
* pure-data
* www.weiss-archiv.de */
#include "m_pd.h"
#ifdef _MSC_VER
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif
// ------------------------ chop~ -----------------------------
// signal chopping modulator
static t_class *chop_tilde_class;
typedef struct _chop_tilde
{
t_object x_obj;
t_sample x_factor;
float x_f;
} t_chop_tilde;
static void *chop_tilde_new(t_floatarg factor)
{
t_chop_tilde *x = (t_chop_tilde *)pd_new(chop_tilde_class);
x->x_factor = factor;
outlet_new(&x->x_obj, gensym("signal"));
inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
floatinlet_new(&x->x_obj, &x->x_factor);
x->x_f = 0;
if(factor) x->x_factor = factor;
else x->x_factor = 0;
return (x);
}
static t_int *chop_tilde_perform(t_int *w)
{
t_chop_tilde *x = (t_chop_tilde *)(w[1]);
t_float *in1 = (t_float *)(w[2]);
t_float *in2 = (t_float *)(w[3]);
t_float *out = (t_float *)(w[4]);
int n = (int)(w[5]);
float f, m, value;
while (n--)
{
f = *in1++;
m = *in2++;
if(m > 0.) value = f * x->x_factor;
else value = f;
*out++ = value;
}
return (w+6);
}
static void chop_tilde_dsp(t_chop_tilde *x, t_signal **sp)
{
dsp_add(chop_tilde_perform, 5, x, sp[0]->s_vec, sp[1]->s_vec, sp[2]->s_vec, sp[0]->s_n);
}
void chop_tilde_setup(void)
{
chop_tilde_class = class_new(gensym("chop~"), (t_newmethod)chop_tilde_new, 0,
sizeof(t_chop_tilde), 0, A_DEFFLOAT, 0);
CLASS_MAINSIGNALIN(chop_tilde_class, t_chop_tilde, x_f);
class_addmethod(chop_tilde_class, (t_method)chop_tilde_dsp, gensym("dsp"), 0);
}
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