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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
/* ------------------------ sp.ustep~ ----------------------------- */
/* signal unity step function */
static t_class *ustep_tilde_class;
typedef struct _ustep_tilde
{
t_object x_obj;
t_sample x_mode;
t_sample x_thres;
float x_f;
} t_ustep_tilde;
static void *ustep_tilde_new(t_floatarg mode, t_floatarg thres)
{
t_ustep_tilde *x = (t_ustep_tilde *)pd_new(ustep_tilde_class);
x->x_mode = mode;
x->x_thres = thres;
outlet_new(&x->x_obj, gensym("signal"));
floatinlet_new(&x->x_obj, &x->x_mode);
floatinlet_new(&x->x_obj, &x->x_thres);
x->x_f = 0;
if(mode) x->x_mode = mode;
else x->x_mode = 0;
if(x->x_mode > 1) x->x_mode = 1;
if(x->x_mode < 0) x->x_mode = 0;
if(thres) x->x_thres = thres;
else x->x_thres = 0.5;
return (x);
}
static t_int *ustep_tilde_perform(t_int *w)
{
t_ustep_tilde *x = (t_ustep_tilde *)(w[1]);
t_float *in = (t_float *)(w[2]);
t_float *out = (t_float *)(w[3]);
int n = (int)(w[4]);
float f, value;
int mode = x->x_mode;
while (n--)
{
f = *in++;
switch(mode){
case(0):
if (f >= x->x_thres)
value = 1;
else
value = 0;
break;
case(1):
if (f >= x->x_thres)
value = 1;
else
value = f;
}
*out++ = value;
}
return (w+5);
}
static void ustep_tilde_dsp(t_ustep_tilde *x, t_signal **sp)
{
dsp_add(ustep_tilde_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
}
void ustep_tilde_setup(void)
{
ustep_tilde_class = class_new(gensym("sp.ustep~"), (t_newmethod)ustep_tilde_new, 0,
sizeof(t_ustep_tilde), 0, A_DEFFLOAT, A_DEFFLOAT, 0);
CLASS_MAINSIGNALIN(ustep_tilde_class, t_ustep_tilde, x_f);
class_addmethod(ustep_tilde_class, (t_method)ustep_tilde_dsp, gensym("dsp"), 0);
}
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