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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. */
/* LATER compare with buddy.c from max sdk */
/* LATER revisit buffer handling (maxsize, reentrancy) */
#include <string.h>
#include "m_pd.h"
#include "common/grow.h"
#define BUDDY_MINSLOTS 2
#define BUDDY_INISIZE 4 /* LATER rethink */
typedef struct _buddy
{
t_object x_ob;
int x_nslots;
int x_nproxies; /* as requested (and allocated) */
t_pd **x_proxies;
t_outlet **x_outs;
} t_buddy;
typedef struct _buddy_proxy
{
t_object p_ob;
t_buddy *p_master;
t_symbol *p_selector;
t_float p_float;
t_symbol *p_symbol;
t_gpointer *p_pointer;
int p_size; /* as allocated */
int p_natoms; /* as used */
t_atom *p_message;
t_atom p_messini[BUDDY_INISIZE];
} t_buddy_proxy;
static t_class *buddy_class;
static t_class *buddy_proxy_class;
static void buddy_clear(t_buddy *x)
{
t_buddy_proxy **p = (t_buddy_proxy **)x->x_proxies;
int i = x->x_nslots;
while (i--)
{
(*p)->p_selector = 0;
(*p++)->p_natoms = 0; /* defensive */
}
}
static void buddy_check(t_buddy *x)
{
t_buddy_proxy **p = (t_buddy_proxy **)x->x_proxies;
int i = x->x_nslots;
while (i--)
if (!(*p++)->p_selector)
return;
p = (t_buddy_proxy **)x->x_proxies;
i = x->x_nslots;
while (i--)
{
t_symbol *s = p[i]->p_selector;
if (s == &s_bang)
outlet_bang(x->x_outs[i]);
else if (s == &s_float)
outlet_float(x->x_outs[i], p[i]->p_float);
else if (s == &s_symbol && p[i]->p_symbol)
outlet_symbol(x->x_outs[i], p[i]->p_symbol);
else if (s == &s_pointer)
{
/* LATER */
}
else if (s == &s_list)
outlet_list(x->x_outs[i], s, p[i]->p_natoms, p[i]->p_message);
else if (s)
outlet_anything(x->x_outs[i], s, p[i]->p_natoms, p[i]->p_message);
}
buddy_clear(x);
}
static void buddy_proxy_bang(t_buddy_proxy *x)
{
x->p_selector = &s_bang;
x->p_natoms = 0; /* defensive */
buddy_check(x->p_master);
}
static void buddy_proxy_float(t_buddy_proxy *x, t_float f)
{
x->p_selector = &s_float;
x->p_float = f;
x->p_natoms = 0; /* defensive */
buddy_check(x->p_master);
}
static void buddy_proxy_symbol(t_buddy_proxy *x, t_symbol *s)
{
x->p_selector = &s_symbol;
x->p_symbol = s;
x->p_natoms = 0; /* defensive */
buddy_check(x->p_master);
}
static void buddy_proxy_pointer(t_buddy_proxy *x, t_gpointer *gp)
{
x->p_selector = &s_pointer;
x->p_pointer = gp;
x->p_natoms = 0; /* defensive */
buddy_check(x->p_master);
}
static void buddy_proxy_domessage(t_buddy_proxy *x, int ac, t_atom *av)
{
if (ac > x->p_size)
{
/* LATER consider using BUDDY_MAXSIZE (and warning if exceeded) */
x->p_message = grow_nodata(&ac, &x->p_size, x->p_message,
BUDDY_INISIZE, x->p_messini,
sizeof(*x->p_message));
}
x->p_natoms = ac;
memcpy(x->p_message, av, ac * sizeof(*x->p_message));
buddy_check(x->p_master);
}
static void buddy_proxy_list(t_buddy_proxy *x,
t_symbol *s, int ac, t_atom *av)
{
x->p_selector = &s_list; /* LATER rethink */
buddy_proxy_domessage(x, ac, av);
}
static void buddy_proxy_anything(t_buddy_proxy *x,
t_symbol *s, int ac, t_atom *av)
{
x->p_selector = s; /* LATER rethink */
buddy_proxy_domessage(x, ac, av);
}
static void buddy_bang(t_buddy *x)
{
buddy_proxy_bang((t_buddy_proxy *)x->x_proxies[0]);
}
static void buddy_float(t_buddy *x, t_float f)
{
buddy_proxy_float((t_buddy_proxy *)x->x_proxies[0], f);
}
static void buddy_symbol(t_buddy *x, t_symbol *s)
{
buddy_proxy_symbol((t_buddy_proxy *)x->x_proxies[0], s);
}
static void buddy_pointer(t_buddy *x, t_gpointer *gp)
{
buddy_proxy_pointer((t_buddy_proxy *)x->x_proxies[0], gp);
}
static void buddy_list(t_buddy *x, t_symbol *s, int ac, t_atom *av)
{
buddy_proxy_list((t_buddy_proxy *)x->x_proxies[0], s, ac, av);
}
static void buddy_anything(t_buddy *x, t_symbol *s, int ac, t_atom *av)
{
buddy_proxy_anything((t_buddy_proxy *)x->x_proxies[0], s, ac, av);
}
static void buddy_free(t_buddy *x)
{
if (x->x_proxies)
{
int i = x->x_nslots;
while (i--)
{
t_buddy_proxy *y = (t_buddy_proxy *)x->x_proxies[i];
if (y->p_message != y->p_messini)
freebytes(y->p_message, y->p_size * sizeof(*y->p_message));
pd_free((t_pd *)y);
}
freebytes(x->x_proxies, x->x_nproxies * sizeof(*x->x_proxies));
}
if (x->x_outs)
freebytes(x->x_outs, x->x_nslots * sizeof(*x->x_outs));
}
static void *buddy_new(t_floatarg f)
{
t_buddy *x;
int i, nslots, nproxies = (int)f;
t_pd **proxies;
t_outlet **outs;
if (nproxies < BUDDY_MINSLOTS)
nproxies = BUDDY_MINSLOTS;
if (!(proxies = (t_pd **)getbytes(nproxies * sizeof(*proxies))))
return (0);
for (nslots = 0; nslots < nproxies; nslots++)
if (!(proxies[nslots] = pd_new(buddy_proxy_class))) break;
if (nslots < BUDDY_MINSLOTS
|| !(outs = (t_outlet **)getbytes(nslots * sizeof(*outs))))
{
int i = nslots;
while (i--) pd_free(proxies[i]);
freebytes(proxies, nproxies * sizeof(*proxies));
return (0);
}
x = (t_buddy *)pd_new(buddy_class);
x->x_nslots = nslots;
x->x_nproxies = nproxies;
x->x_proxies = proxies;
x->x_outs = outs;
for (i = 0; i < nslots; i++)
{
t_buddy_proxy *y = (t_buddy_proxy *)proxies[i];
y->p_master = x;
y->p_selector = 0;
y->p_float = 0;
y->p_symbol = 0;
y->p_pointer = 0;
y->p_size = BUDDY_INISIZE;
y->p_natoms = 0;
y->p_message = y->p_messini;
if (i) inlet_new((t_object *)x, (t_pd *)y, 0, 0);
x->x_outs[i] = outlet_new((t_object *)x, &s_anything);
}
return (x);
}
void buddy_setup(void)
{
buddy_class = class_new(gensym("buddy"),
(t_newmethod)buddy_new,
(t_method)buddy_free,
sizeof(t_buddy), 0, A_DEFFLOAT, 0);
class_addbang(buddy_class, buddy_bang);
class_addfloat(buddy_class, buddy_float);
class_addsymbol(buddy_class, buddy_symbol);
class_addpointer(buddy_class, buddy_pointer);
class_addlist(buddy_class, buddy_list);
class_addanything(buddy_class, buddy_anything);
class_addmethod(buddy_class, (t_method)buddy_clear, gensym("clear"), 0);
buddy_proxy_class = class_new(gensym("_buddy_proxy"), 0, 0,
sizeof(t_buddy_proxy),
CLASS_PD | CLASS_NOINLET, 0);
class_addbang(buddy_proxy_class, buddy_proxy_bang);
class_addfloat(buddy_proxy_class, buddy_proxy_float);
class_addsymbol(buddy_proxy_class, buddy_proxy_symbol);
class_addpointer(buddy_proxy_class, buddy_proxy_pointer);
class_addlist(buddy_proxy_class, buddy_proxy_list);
class_addanything(buddy_proxy_class, buddy_proxy_anything);
}
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