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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 "sickle/sic.h"
#define COUNTMAXINT 0x7fffffff
typedef struct _count
{
t_sic x_sic;
int x_min;
int x_max;
int x_limit;
int x_on;
int x_autoreset;
int x_count; /* MAYBE use 64 bits (if 13.5 hours is not enough...) */
} t_count;
static t_class *count_class;
static void count_bang(t_count *x)
{
x->x_count = x->x_min;
x->x_on = 1;
}
static void count_min(t_count *x, t_floatarg f)
{
x->x_min = (int)f;
count_bang(x);
}
static void count_max(t_count *x, t_floatarg f)
{
x->x_max = (int)f;
/* MAYBE use 64 bits */
x->x_limit = (x->x_max == 0 ? COUNTMAXINT
: x->x_max - 1); /* CHECKED */
count_bang(x);
}
static void count_autoreset(t_count *x, t_floatarg f)
{
x->x_autoreset = (f != 0);
}
static void count_float(t_count *x, t_floatarg f)
{
x->x_count = x->x_min = (int)f;
x->x_on = 1;
}
static void count_list(t_count *x, t_symbol *s, int ac, t_atom *av)
{
int i;
if (ac > 4) ac = 4;
for (i = 0; i < ac; i++)
if (av[i].a_type != A_FLOAT) break;
switch (i)
{
case 4:
count_autoreset(x, av[3].a_w.w_float);
case 3:
x->x_on = (av[2].a_w.w_float != 0);
case 2:
count_max(x, av[1].a_w.w_float);
case 1:
count_min(x, av[0].a_w.w_float);
default:
x->x_count = x->x_min;
}
}
/* changes minimum (and optional the maximum) without changing current value */
static void count_set(t_count *x, t_symbol *s, int ac, t_atom *av)
{
if (ac > 0)
{
if (av[0].a_type == A_FLOAT) {
x->x_min = (int)av[0].a_w.w_float;
}
}
if (ac > 1)
{
if (av[1].a_type == A_FLOAT)
{
x->x_max = (int)av[1].a_w.w_float;
x->x_limit = (x->x_max == 0 ? COUNTMAXINT
: x->x_max - 1); /* CHECKED */
}
}
}
static void count_stop(t_count *x)
{
x->x_count = x->x_min;
x->x_on = 0;
}
static t_int *count_perform(t_int *w)
{
t_count *x = (t_count *)(w[1]);
int nblock = (int)(w[2]);
t_float *out = (t_float *)(w[3]);
int count = x->x_count;
int limit = x->x_limit;
if (x->x_on)
{
while (nblock--)
{
if (count > limit) count = x->x_min;
*out++ = (t_float)count++;
}
}
else
while (nblock--) *out++ = count;
x->x_count = count;
return (w + 4);
}
static void count_dsp(t_count *x, t_signal **sp)
{
if (x->x_autoreset) count_bang(x);
dsp_add(count_perform, 3, x, sp[0]->s_n, sp[0]->s_vec);
}
static void *count_new(t_floatarg minval, t_floatarg maxval,
t_floatarg onflag, t_floatarg autoflag)
{
t_count *x = (t_count *)pd_new(count_class);
count_min(x, minval);
count_max(x, maxval);
x->x_on = (onflag != 0);
count_autoreset(x, autoflag);
x->x_count = x->x_min;
inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft1"));
outlet_new((t_object *)x, &s_signal);
return (x);
}
void count_tilde_setup(void)
{
count_class = class_new(gensym("count~"),
(t_newmethod)count_new, 0,
sizeof(t_count), 0,
A_DEFFLOAT, A_DEFFLOAT,
A_DEFFLOAT, A_DEFFLOAT, 0);
sic_setup(count_class, count_dsp, SIC_NOMAINSIGNALIN);
class_addbang(count_class, count_bang);
class_addfloat(count_class, count_float);
class_addlist(count_class, count_list);
class_addmethod(count_class, (t_method)count_max,
gensym("ft1"), A_FLOAT, 0);
class_addmethod(count_class, (t_method)count_autoreset,
gensym("autoreset"), A_FLOAT, 0);
class_addmethod(count_class, (t_method)count_min,
gensym("min"), A_FLOAT, 0);
class_addmethod(count_class, (t_method)count_set,
gensym("set"), A_GIMME, 0);
class_addmethod(count_class, (t_method)count_stop, gensym("stop"), 0);
}
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