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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 - 2013 */
/* double precision library */
#include "m_pd.h"
#include "iemlib.h"
#include "iem_dp.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* -------------------------- dptohex ------------------------------ */
/* double float to 16 digits of hexadecimal converter */
/* double float is only internal used */
/* to transfer this value, we divide this double value into use one float casted value */
/* and into the difference to the accurate double value. */
/* double float (sign_1 + exp_12 + mant_51) */
static t_class *dptohex_class;
typedef struct _dptohex
{
t_object x_obj;
t_float x_float_casted_value;
t_float x_residual;
} t_dptohex;
static void dptohex_bang(t_dptohex *x)
{
char buf[100];
union tabfudge_d tf;
tf.tf_d = iem_dp_calc_sum(x->x_float_casted_value, x->x_residual);
sprintf(buf, "#%08X%08X", tf.tf_i[HIOFFSET], tf.tf_i[LOWOFFSET]);
outlet_symbol(x->x_obj.ob_outlet, gensym(buf));
}
static void dptohex_float(t_dptohex *x, t_floatarg f)
{
x->x_float_casted_value = f;
dptohex_bang(x);
}
static void *dptohex_new(void)
{
t_dptohex *x = (t_dptohex *)pd_new(dptohex_class);
floatinlet_new(&x->x_obj, &x->x_residual);
x->x_float_casted_value = 0.0f;
x->x_residual = 0.0f;
outlet_new(&x->x_obj, &s_symbol);
return (x);
}
static void dptohex_free(t_dptohex *x)
{
}
void dptohex_setup(void)
{
dptohex_class = class_new(gensym("dptohex"),
(t_newmethod)dptohex_new, (t_method)dptohex_free, sizeof(t_dptohex), 0, 0);
class_addbang(dptohex_class, dptohex_bang);
class_addfloat(dptohex_class, dptohex_float);
}
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