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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.
iem_dp written by IOhannes m zmoelnig, Thomas Musil, Copyright (c) IEM KUG Graz Austria 1999 - 2007 */
/* double precision library */
#include "m_pd.h"
#include "iemlib.h"
#include "iem_dp.h"
/* ------------------------ div__ or /__ ---------------------------- */
/* based on miller's /, which is part of pd, only with double precision */
static t_class *div___class;
typedef struct _div__
{
t_object x_obj;
t_float x_coarse_left;
t_float x_fine_left;
t_float x_coarse_right;
t_float x_fine_right;
t_outlet *x_out_coarse;
t_outlet *x_out_fine;
} t_div__;
static void div___bang(t_div__ *x)
{
double ddiv, nom;
t_float fdiv;
nom = iem_dp_calc_sum(x->x_coarse_right, x->x_fine_right);
ddiv = (nom ? iem_dp_calc_sum(x->x_coarse_left, x->x_fine_left) / nom : 0);
fdiv = (t_float)ddiv;
outlet_float(x->x_out_fine, iem_dp_calc_residual(ddiv, fdiv));
outlet_float(x->x_out_coarse, fdiv);
}
static void div___float(t_div__ *x, t_floatarg f)
{
x->x_coarse_left = f;
div___bang(x);
}
static void *div___new(t_symbol *s, int ac, t_atom *av)
{
t_div__ *x = (t_div__ *)pd_new(div___class);
floatinlet_new(&x->x_obj, &x->x_fine_left);
floatinlet_new(&x->x_obj, &x->x_coarse_right);
floatinlet_new(&x->x_obj, &x->x_fine_right);
x->x_coarse_left = 0.0f;
x->x_fine_left = 0.0f;
if((ac > 0) && (IS_A_FLOAT(av, 0)))
x->x_coarse_right = atom_getfloatarg(0, ac, av);
else
x->x_coarse_right = 0.0f;
if((ac > 1) && (IS_A_FLOAT(av, 1)))
x->x_fine_right = atom_getfloatarg(1, ac, av);
else
x->x_fine_right = 0.0f;
x->x_out_coarse = outlet_new(&x->x_obj, &s_float);
x->x_out_fine = outlet_new(&x->x_obj, &s_float);
return (x);
}
static void div___free(t_div__ *x)
{
}
void div___setup(void)
{
div___class = class_new(gensym("div__"), (t_newmethod)div___new, 0, sizeof(t_div__), 0, A_GIMME, 0);
class_addcreator((t_newmethod)div___new, gensym("/__"), A_GIMME, 0);
class_addcreator((t_newmethod)div___new, gensym("/''"), A_GIMME, 0);
class_addbang(div___class, div___bang);
class_addfloat(div___class, div___float);
}
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