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/* ------------------------- sync ------------------------------------------- */
/* */
/* syncronises outputs depending on inputs. */
/* Written by Olaf Matthes <olaf.matthes@gmx.de> */
/* Based on 'sync' from jMax. */
/* Get source at http://www.akustische-kunst.org/puredata/maxlib/ */
/* */
/* This program is free software; you can redistribute it and/or */
/* modify it under the terms of the GNU General Public License */
/* as published by the Free Software Foundation; either version 2 */
/* of the License, or (at your option) any later version. */
/* */
/* This program is distributed in the hope that it will be useful, */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
/* GNU General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public License */
/* along with this program; if not, write to the Free Software */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* */
/* Based on PureData by Miller Puckette and others. */
/* */
/* ---------------------------------------------------------------------------- */
#include "m_pd.h"
#include <stdio.h>
#include <math.h>
#define SYNC_MAX_SIZE (int)(sizeof(unsigned int) * 8)
static char *version = "sync v0.1, written by Olaf Matthes <olaf.matthes@gmx.de>\n"
" based on sync from jMax";
typedef struct sync
{
t_object x_ob;
t_float x_min; /* low border of input range */
t_float x_max; /* high border of input range */
t_outlet *x_outlet[SYNC_MAX_SIZE];
t_int x_n;
unsigned int x_trigger; /* control bits: trigger on input at given inlets */
unsigned int x_require; /* control bits: require input on given inlets */
unsigned int x_reset; /* control bits: reset memory of given inputs after on each input */
unsigned int x_wait; /* status bits: wait for input at given inlet before output */
t_atom x_a[SYNC_MAX_SIZE];
enum {mode_all, mode_select} mode;
} t_sync;
typedef struct proxy
{
t_object obj;
t_int index; /* number of proxy inlet(s) */
t_sync *x; /* we'll put the other struct in here */
} t_proxy;
static void sync_output(t_sync *x)
{
int i;
for(i=x->x_n-1; i>=0; i--)
if(x->x_a[i].a_type != A_SEMI)
outlet_list(x->x_outlet[i], NULL, 1, x->x_a + i);
}
static void sync_input(t_proxy *p, t_symbol *s, int ac, t_atom *at)
{
t_sync *x = (t_sync *)(p->x);
int winlet = p->index;
if(ac)
{
unsigned int bit = 1 << winlet;
x->x_a[winlet] = at[0];
x->x_wait &= ~bit;
if(!x->x_wait && (x->x_trigger & bit))
{
sync_output(x);
x->x_wait |= x->x_reset & x->x_require;
}
}
}
static void sync_float_input(t_proxy *p, t_floatarg f)
{
t_sync *x = (t_sync *)(p->x);
int winlet = p->index;
{
unsigned int bit = 1 << winlet;
SETFLOAT(x->x_a + winlet, f);
x->x_wait &= ~bit;
if(!x->x_wait && (x->x_trigger & bit))
{
sync_output(x);
x->x_wait |= x->x_reset & x->x_require;
}
}
}
static void sync_set_bits(unsigned int *bits, int n, t_atom *at, int sign)
{
if(at->a_type == A_SYMBOL)
{
t_symbol *mode = atom_getsymbol(at);
if(mode == gensym("all"))
*bits = (1 << n) - 1;
else if(mode == gensym("none"))
*bits = 0;
}
else if(at->a_type == A_FLOAT)
{
int in = (int)atom_getfloat(at) * sign;
if(in >= 0 && in < n)
*bits = 1 << in;
}
else if(at->a_type == A_GIMME)
{
int size = n;
int i;
*bits = 0;
for(i=0; i<size; i++)
{
if(at[i].a_type == A_FLOAT)
{
int in = atom_getfloatarg(i, size, at) * sign;
if(in >= 0 && in < n)
*bits |= 1 << in;
}
}
}
}
static void sync_set_trigger(t_sync *x, t_symbol *s, int ac, t_atom *at)
{
sync_set_bits(&x->x_trigger, x->x_n, at, 1);
}
static void sync_set_require(t_sync *x, t_symbol *s, int ac, t_atom *at)
{
unsigned int once = 0;
sync_set_bits(&x->x_require, x->x_n, at, 1);
sync_set_bits(&once, x->x_n, at, -1);
x->x_reset = ~once;
x->x_wait = x->x_require | once;
}
static void sync_set_mode(t_sync *x, t_symbol *mode)
{
if(mode == gensym("any"))
{
x->x_trigger = (1 << x->x_n) - 1;
x->x_reset = 0;
x->x_require = 0;
}
else if(mode == gensym("all"))
x->x_trigger = x->x_require = x->x_reset = x->x_wait = (1 << x->x_n) - 1;
else if(mode == gensym("left"))
{
x->x_trigger = 1;
x->x_reset = 0;
x->x_require = 0;
}
else if(mode == gensym("right"))
{
x->x_trigger = (1 << (x->x_n - 1));
x->x_reset = 0;
x->x_require = 0;
}
x->x_wait = x->x_require;
}
static void sync_float(t_sync *x, t_floatarg f)
{
unsigned int bit = 1 << 0;
SETFLOAT(x->x_a, f);
x->x_wait &= ~bit;
if(!x->x_wait && (x->x_trigger & bit))
{
sync_output(x);
x->x_wait |= x->x_reset & x->x_require;
}
}
static t_class *sync_class;
static t_class *proxy_class;
static void *sync_new(t_symbol *s, int ac, t_atom *at)
{
int n = 0;
int i;
t_sync *x = (t_sync *)pd_new(sync_class);
t_proxy *inlet[SYNC_MAX_SIZE];
/* void state - we fill with SEMI and treat this as 'void' */
for(i=0; i<SYNC_MAX_SIZE; i++)
SETSEMI(x->x_a + i);
if(ac == 1)
{
if(at->a_type == A_FLOAT)
{
n = atom_getfloat(at);
if(n < 2)
n = 2;
else if(n > SYNC_MAX_SIZE)
n = SYNC_MAX_SIZE;
}
else
{
post("sync: wrong argument");
return (0);
}
}
else if(ac > 1)
{
if(ac > SYNC_MAX_SIZE)
ac = SYNC_MAX_SIZE;
n = ac;
for(i=0; i<n; i++)
x->x_a[i] = at[i];
}
x->x_n = n;
x->x_trigger = x->x_require = x->x_reset = x->x_wait = (1 << n) - 1;
x->x_outlet[0] = outlet_new(&x->x_ob, gensym("list"));
for(i=1; i<n; i++)
{
inlet[i] = (t_proxy *)pd_new(proxy_class); /* create the proxy inlet */
inlet[i]->x = x; /* make t_sync *x visible to the proxy inlets */
inlet[i]->index = i; /* remember it's number */
/* it belongs to the object t_sync but the destination is t_proxy */
inlet_new(&x->x_ob, &inlet[i]->obj.ob_pd, 0,0);
x->x_outlet[i] = outlet_new(&x->x_ob, gensym("list"));
}
return (void *)x;
}
#ifndef MAXLIB
void sync_setup(void)
{
sync_class = class_new(gensym("sync"), (t_newmethod)sync_new,
0, sizeof(t_sync), 0, A_GIMME, 0);
#else
void maxlib_sync_setup(void)
{
sync_class = class_new(gensym("maxlib_sync"), (t_newmethod)sync_new,
0, sizeof(t_sync), 0, A_GIMME, 0);
#endif
/* a class for the proxy inlet: */
proxy_class = class_new(gensym("maxlib_sync_proxy"), NULL, NULL, sizeof(t_proxy),
CLASS_PD|CLASS_NOINLET, A_NULL);
class_addfloat(proxy_class, sync_float_input);
class_addanything(proxy_class, sync_input);
class_addfloat(sync_class, sync_float);
class_addmethod(sync_class, (t_method)sync_set_trigger, gensym("trigger"), A_GIMME, 0);
class_addmethod(sync_class, (t_method)sync_set_require, gensym("require"), A_GIMME, 0);
class_addmethod(sync_class, (t_method)sync_set_mode, gensym("mode"), A_SYMBOL, 0);
#ifndef MAXLIB
post(version);
#else
class_addcreator((t_newmethod)sync_new, gensym("sync"), A_GIMME, 0);
class_sethelpsymbol(sync_class, gensym("maxlib/sync-help.pd"));
#endif
}
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