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#include "defines.h"
/*--------------- itov ---------------*/
static t_class *itov_class;
typedef struct _itov
{
t_object x_obj;
t_outlet *f_out1;
t_outlet *f_out2;
t_outlet *f_out3;
t_float m_lo;
t_float m_hi;
t_float m_scale;
int m_nbins;
} t_itov;
static void itov_perform_float(t_itov *x, t_float j)
{
t_float i;
j-=1.0f;
j=(j>0)?(j<x->m_nbins?j:x->m_nbins-1):0; // limit without IF
// j=(int)((f-x->m_lo)*x->m_scale);
i=(j/x->m_scale)-x->m_lo;
outlet_float(x->f_out2, i);
}
static void itov_perform_list(t_itov *x, t_symbol *s, int argc, t_atom *argv)
{
}
static void itov_set(t_itov *x, t_float lo, t_float hi, t_float nbins)
{
if (nbins<1)
{
nbins=1;
logpost(x, 2, "[itov] minimum number of bins is 1");
}
if (hi<=lo)
{
logpost(x, 2, "[itov] higher bound (%g) must be higher than lower bound (%g)",
hi, lo);
hi=lo+1.0f;
}
x->m_hi=hi;
x->m_lo=lo;
x->m_nbins=(int)nbins;
x->m_scale=(t_float)x->m_nbins/(hi-lo);
}
static void *itov_new(t_float lo, t_float hi, t_float nbins)
{
t_itov *x=(t_itov *)pd_new(itov_class);
x->f_out1=outlet_new(&x->x_obj, gensym("float"));
x->f_out2=outlet_new(&x->x_obj, gensym("float"));
x->f_out3=outlet_new(&x->x_obj, gensym("float"));
x->m_nbins=0;
itov_set(x, lo, hi, nbins);
return (void *)x;
}
static void itov_free(t_itov *x)
{
}
void itov_setup(void)
{
itov_class = class_new(gensym("itov"),
(t_newmethod)itov_new, (t_method)itov_free,
sizeof(t_itov),
CLASS_DEFAULT,
A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT,0);
// class_addlist(itov_class, (t_method)itov_perform_list);
class_addfloat(itov_class, (t_method)itov_perform_float);
}
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