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/* Copyright (c) 2005 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 <stdio.h>
#include <stdarg.h>
#include <string.h>
#include "m_pd.h"
#include "fitter.h"
#ifdef KRZYSZCZ
# include "loud.h"
# define FITTER_DEBUG
#else
# define loudbug_bug(msg) fprintf(stderr, "BUG: %s\n", msg), bug(msg)
#endif
/* FIXME compatibility mode should be a standard Pd feature. When it is,
it will be possible to simplify the implementation. Until then,
we have to handle multiple copies of the 'fittermode_value' variable
(coming from different externals), and the only way is multicasting
through a symbol (#compatibility). */
static t_symbol *fittermode_value = 0;
typedef struct _fittermode_client
{
t_class *fc_owner;
t_canvas *fc_canvas;
t_fittermode_callback fc_callback;
struct _fittermode_client *fc_next;
} t_fittermode_client;
static t_fittermode_client *fittermode_clients = 0;
static t_class *fittermode_class = 0;
static t_pd *fittermode_target = 0;
static int fittermode_ready = 0;
static t_symbol *fitterps_hashcompatibility = 0;
static t_symbol *fitterps_max = 0;
static t_symbol *fitterps_none = 0;
/* read access (query), only from fittermode_dosetup() */
static void fittermode_bang(t_pd *x)
{
if (fitterps_hashcompatibility)
{
if (fittermode_ready /* do not reply to own request */
&& fitterps_hashcompatibility->s_thing)
/* this proliferates for the third and subsequent
fittermode_dosetup() calls... */
pd_symbol(fitterps_hashcompatibility->s_thing,
fittermode_value);
}
else loudbug_bug("fittermode_bang");
}
/* read access (reply), only from fitter_dosetup() */
static void fittermode_symbol(t_pd *x, t_symbol *s)
{
if (!s || s == &s_)
{
loudbug_bug("fittermode_symbol");
s = fitterps_none;
}
fittermode_value = s;
}
/* write access, only from fitter_setmode() */
static void fittermode_set(t_pd *x, t_symbol *s)
{
t_fittermode_client *fc;
fittermode_value = s;
for (fc = fittermode_clients; fc; fc = fc->fc_next)
if (fc->fc_callback)
fc->fc_callback();
}
static void fittermode_dosetup(int noquery)
{
if (fittermode_class || fittermode_target)
loudbug_bug("fittermode_dosetup");
fitterps_hashcompatibility = gensym("#compatibility");
fitterps_max = gensym("max");
fitterps_none = gensym("none");
fittermode_value = fitterps_none;
fittermode_class = class_new(fitterps_hashcompatibility,
0, 0, sizeof(t_pd),
CLASS_PD | CLASS_NOINLET, 0);
class_addbang(fittermode_class, fittermode_bang);
class_addsymbol(fittermode_class, fittermode_symbol);
class_addmethod(fittermode_class,
(t_method)fittermode_set,
gensym("set"), A_SYMBOL, 0);
fittermode_target = pd_new(fittermode_class);
pd_bind(fittermode_target, fitterps_hashcompatibility);
if (!noquery)
pd_bang(fitterps_hashcompatibility->s_thing);
fittermode_ready = 1;
}
void fitter_setup(t_class *owner, t_fittermode_callback callback)
{
if (!fittermode_class)
fittermode_dosetup(0);
if (callback)
{
t_fittermode_client *fc = getbytes(sizeof(*fc));
fc->fc_owner = owner;
fc->fc_canvas = 0; /* a global client */
fc->fc_callback = callback;
fc->fc_next = fittermode_clients;
fittermode_clients = fc;
}
}
void fitter_drop(t_class *owner)
{
if (fittermode_class && fitterps_hashcompatibility->s_thing)
{
t_fittermode_client *fcp = 0,
*fc = fittermode_clients;
while (fc)
{
if (fc->fc_owner == owner)
{
if (fcp)
fcp->fc_next = fc->fc_next;
else
fittermode_clients = fc->fc_next;
break;
}
fcp = fc;
fc = fc->fc_next;
}
if (fc)
freebytes(fc, sizeof(*fc));
else
loudbug_bug("fitter_drop 1");
}
else loudbug_bug("fitter_drop 2");
}
void fitter_setmode(t_symbol *s)
{
if (!s || s == &s_)
s = fitterps_none;
post("setting compatibility mode to '%s'", s->s_name);
if (!fittermode_class)
fittermode_dosetup(1);
if (fitterps_hashcompatibility->s_thing)
{
t_atom at;
SETSYMBOL(&at, s);
typedmess(fitterps_hashcompatibility->s_thing, gensym("set"), 1, &at);
}
else loudbug_bug("fitter_setmode");
}
t_symbol *fitter_getmode(void)
{
if (!fittermode_class)
fittermode_dosetup(0);
return (fittermode_value);
}
void fittermax_set(void)
{
if (!fittermode_class)
fittermode_dosetup(0);
fitter_setmode(fitterps_max);
}
int fittermax_get(void)
{
if (!fittermode_class)
fittermode_dosetup(0);
return (fittermode_value == fitterps_max);
}
void fittermax_warning(t_class *c, char *fmt, ...)
{
if (!fittermode_class)
fittermode_dosetup(0);
if (fittermode_value == fitterps_max)
{
char buf[MAXPDSTRING];
va_list ap;
va_start(ap, fmt);
vsprintf(buf, fmt, ap);
post("'%s' class incompatibility warning:\n\t%s",
class_getname(c), buf);
va_end(ap);
}
}
void fittermax_rangewarning(t_class *c, int maxmax, char *what)
{
fittermax_warning(c, "more than %d %s requested", maxmax, what);
}
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