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/* Copyright (c) 2002-2003 krzYszcz and others.
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
#include "m_pd.h"
#include "common/loud.h"
#define MAXIMUM_C74MAXITEMS 256
typedef struct _maximum
{
t_object x_ob;
t_float x_last;
t_float x_test;
} t_maximum;
static t_class *maximum_class;
static void maximum_bang(t_maximum *x)
{
outlet_float(((t_object *)x)->ob_outlet, x->x_last);
}
static void maximum_float(t_maximum *x, t_float f)
{
outlet_float(((t_object *)x)->ob_outlet,
x->x_last = (f > x->x_test ? f : x->x_test));
}
static void maximum_list(t_maximum *x, t_symbol *s, int ac, t_atom *av)
{
if (ac > MAXIMUM_C74MAXITEMS)
loud_incompatible_max(*(t_pd *)x, MAXIMUM_C74MAXITEMS, "items");
while (ac && av->a_type != A_FLOAT) ac--, av++; /* CHECKME (a warning?) */
if (ac)
{
t_float fpick = av->a_w.w_float;
ac--; av++;
while (ac && av->a_type != A_FLOAT) ac--, av++; /* CHECKME */
if (ac)
{
t_float fnext, f = av->a_w.w_float;
if (f > fpick)
{
fnext = fpick;
fpick = f;
}
else fnext = f;
ac--; av++;
while (ac--)
{
if (av->a_type == A_FLOAT)
{
f = av->a_w.w_float;
if (f > fpick)
{
fnext = fpick;
fpick = f;
}
else if (f > fnext) fnext = f;
}
/* CHECKME else */
av++;
}
x->x_test = fnext;
outlet_float(((t_object *)x)->ob_outlet, x->x_last = fpick);
}
else maximum_float(x, fpick); /* CHECKME */
}
/* CHECKME else */
}
static void *maximum_new(t_floatarg f)
{
t_maximum *x = (t_maximum *)pd_new(maximum_class);
x->x_last = 0; /* CHECKME */
x->x_test = f;
floatinlet_new((t_object *)x, &x->x_test);
outlet_new((t_object *)x, &s_float);
return (x);
}
void maximum_setup(void)
{
maximum_class = class_new(gensym("maximum"),
(t_newmethod)maximum_new, 0,
sizeof(t_maximum), 0, A_DEFFLOAT, 0);
class_addbang(maximum_class, maximum_bang);
class_addfloat(maximum_class, maximum_float);
class_addlist(maximum_class, maximum_list);
}
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