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/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
iemlib2 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2006 */
#include "m_pd.h"
#include "iemlib.h"
/* ------------------------ round_zero ---------------------------- */
/* ------ small float numbers of an anything message within ------- */
/* ---- plus minus initial argument will be truncated to zero ----- */
static t_class *round_zero_class;
typedef struct _round_zero
{
t_object x_obj;
t_float x_bound;
} t_round_zero;
static void round_zero_anything(t_round_zero *x, t_symbol *s, int ac, t_atom *av)
{
int i;
t_float f, bound=x->x_bound;
for(i=0; i<ac; i++)
{
if(IS_A_FLOAT(av, i))
{
f = atom_getfloatarg(i, ac, av);
if((f <= bound)&&(f >= -bound))
{
f = 0.0f;
SETFLOAT(av+i, f);
}
}
}
outlet_anything(x->x_obj.ob_outlet, s, ac, av);
}
static void *round_zero_new(t_floatarg bound)
{
t_round_zero *x = (t_round_zero *)pd_new(round_zero_class);
if(bound < 0.0f)
x->x_bound = -bound;
else
x->x_bound = bound;
outlet_new(&x->x_obj, &s_list);
return (x);
}
void round_zero_setup(void)
{
round_zero_class = class_new(gensym("round_zero"), (t_newmethod)round_zero_new,
0, sizeof(t_round_zero), 0, A_DEFFLOAT, 0);
class_addanything(round_zero_class, round_zero_anything);
// class_sethelpsymbol(round_zero_class, gensym("iemhelp/help-round_zero"));
}
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