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#include "defines.h"
/*--------------- vftom ----------------*/
static t_class *vftom_class;
typedef struct _vftom
{
t_object x_obj;
} t_vftom;
float ftom(float f)
{
return (float)(f > 0 ? 17.3123405046 * log(.12231220585 * f) : -1500);
}
static void vftom_perform(t_vftom *x, t_symbol *s, int argc, t_atom *argv)
{
int i;
t_atom *ap,*app;
ap = (t_atom *)getbytes(sizeof(t_atom)*argc);
app=ap;
for (i = 0; i < argc; i++)
{
SETFLOAT(app, ftom(atom_getfloat(argv++)));
app++;
}
outlet_list(x->x_obj.ob_outlet,gensym("list"),argc,ap);
freebytes(ap,argc);
}
static void *vftom_new()
{
t_vftom *x=(t_vftom *)pd_new(vftom_class);
outlet_new(&x->x_obj, gensym("list"));
return (void *)x;
}
void vftom_setup(void)
{
vftom_class = class_new(gensym("vftom"),
(t_newmethod)vftom_new, 0,
sizeof(t_vftom),
CLASS_DEFAULT,
0);
class_addlist(vftom_class, (t_method)vftom_perform);
}
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