diff options
Diffstat (limited to 'speedlim.c')
| -rw-r--r-- | speedlim.c | 470 |
1 files changed, 235 insertions, 235 deletions
@@ -1,235 +1,235 @@ -/* ------------------------- speedlim ----------------------------------------- */
-/* */
-/* Lets information through only every N milliseconds. */
-/* Written by Krzysztof Czaja for his cyclone library. */
-/* Modified to fit into maxlib by Olaf Matthes <olaf.matthes@gmx.de>. */
-/* 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. */
-/* */
-/* You should have received a copy of the GNU Lesser General Public */
-/* License along with this library; 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. */
-/* */
-/* ---------------------------------------------------------------------------- */
-
-/* this is the original copyright notice: */
-
-/* Copyright (c) 1997-2002 Miller Puckette and others.
- * For information on usage and redistribution, and for a DISCLAIMER OF ALL
- * WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
-
-
-#include <string.h>
-#include "m_pd.h"
-
-#define SPEEDLIM_INISIZE 32 /* LATER rethink */
-#define SPEEDLIM_MAXSIZE 256 /* not used */
-
-typedef struct _speedlim
-{
- t_object x_ob;
- int x_open;
- t_float x_delta;
- t_symbol *x_selector;
- t_float x_float;
- t_symbol *x_symbol;
- t_gpointer *x_pointer;
- int x_size; /* as allocated */
- int x_natoms; /* as used */
- t_atom *x_message;
- t_atom x_messini[SPEEDLIM_INISIZE];
- int x_entered;
- t_clock *x_clock;
-} t_speedlim;
-
-static t_class *speedlim_class;
-
-/* a caller must check for nrequested > *sizep */
-/* returns actual number of atoms: requested (success)
- or a default value of initial size (failure) */
-/* the result is guaranteed to be >= min(nrequested, inisize) */
-static int speedlim_grow(int nrequested, int *sizep, t_atom **bufp,
- int inisize, t_atom *bufini)
-{
- int newsize = *sizep * 2;
- while (newsize < nrequested) newsize *= 2;
- if (*bufp == bufini)
- *bufp = (t_atom *)getbytes(newsize * sizeof(**bufp));
- else
- *bufp = (t_atom *)resizebytes(*bufp, *sizep * sizeof(**bufp),
- newsize * sizeof(**bufp));
- if (*bufp)
- *sizep = newsize;
- else
- {
- *bufp = bufini;
- nrequested = *sizep = inisize;
- }
- return (nrequested);
-}
-
-static void speedlim_dooutput(t_speedlim *x, t_symbol *s, int ac, t_atom *av)
-{
- x->x_open = 0; /* so there will be no reentrant calls of dooutput */
- x->x_entered = 1; /* this prevents a message from being overridden */
- clock_unset(x->x_clock);
- if (s == &s_bang)
- outlet_bang(((t_object *)x)->ob_outlet);
- else if (s == &s_float)
- outlet_float(((t_object *)x)->ob_outlet, x->x_float);
- else if (s == &s_symbol && x->x_symbol)
- {
- /* if x_symbol is null, then symbol &s_ is passed
- by outlet_anything() -> typedmess() */
- outlet_symbol(((t_object *)x)->ob_outlet, x->x_symbol);
- x->x_symbol = 0;
- }
- else if (s == &s_pointer && x->x_pointer)
- {
- /* LATER */
- x->x_pointer = 0;
- }
- else if (s == &s_list)
- outlet_list(((t_object *)x)->ob_outlet, &s_list, ac, av);
- else if (s)
- outlet_anything(((t_object *)x)->ob_outlet, s, ac, av);
- x->x_selector = 0;
- x->x_natoms = 0;
- if (x->x_delta > 0)
- clock_delay(x->x_clock, x->x_delta);
- else
- x->x_open = 1;
- x->x_entered = 0;
-}
-
-static void speedlim_tick(t_speedlim *x)
-{
- if (x->x_selector)
- speedlim_dooutput(x, x->x_selector, x->x_natoms, x->x_message);
- else
- x->x_open = 1;
-}
-
-static void speedlim_anything(t_speedlim *x, t_symbol *s, int ac, t_atom *av)
-{
- if (x->x_open)
- speedlim_dooutput(x, s, ac, av);
- else if (s && s != &s_ && !x->x_entered)
- {
- if (ac > x->x_size)
- /* MAXSIZE not used, not even a warning...
- LATER consider clipping */
- ac = speedlim_grow(ac, &x->x_size, &x->x_message,
- SPEEDLIM_INISIZE, x->x_messini);
- x->x_selector = s;
- x->x_natoms = ac;
- if (ac)
- memcpy(x->x_message, av, ac * sizeof(*x->x_message));
- }
-}
-
-static void speedlim_bang(t_speedlim *x)
-{
- x->x_selector = &s_bang;
- speedlim_anything(x, x->x_selector, 0, 0);
-}
-
-static void speedlim_float(t_speedlim *x, t_float f)
-{
- x->x_selector = &s_float;
- x->x_float = f;
- speedlim_anything(x, x->x_selector, 0, 0);
-}
-
-static void speedlim_symbol(t_speedlim *x, t_symbol *s)
-{
- x->x_selector = &s_symbol;
- x->x_symbol = s;
- speedlim_anything(x, x->x_selector, 0, 0);
-}
-
-/* LATER gpointer */
-
-static void speedlim_list(t_speedlim *x, t_symbol *s, int ac, t_atom *av)
-{
- x->x_selector = &s_list;
- speedlim_anything(x, x->x_selector, ac, av);
-}
-
-static void speedlim_ft1(t_speedlim *x, t_floatarg f)
-{
- if (f < 0)
- f = 0; /* redundant (and CHECKED) */
- x->x_delta = f;
- /* CHECKED: no rearming --
- if clock is set, then new delta value is not used until next tick */
-}
-
-static void speedlim_free(t_speedlim *x)
-{
- if (x->x_message != x->x_messini)
- freebytes(x->x_message, x->x_size * sizeof(*x->x_message));
- if (x->x_clock)
- clock_free(x->x_clock);
-}
-
-static void *speedlim_new(t_floatarg f)
-{
- t_speedlim *x = (t_speedlim *)pd_new(speedlim_class);
- x->x_open = 1; /* CHECKED */
- x->x_delta = 0;
- x->x_selector = 0;
- x->x_float = 0;
- x->x_symbol = 0;
- x->x_pointer = 0;
- x->x_size = SPEEDLIM_INISIZE;
- x->x_natoms = 0;
- x->x_message = x->x_messini;
- x->x_entered = 0;
- inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft1"));
- outlet_new((t_object *)x, &s_anything);
- x->x_clock = clock_new(x, (t_method)speedlim_tick);
- speedlim_ft1(x, f);
- return (x);
-}
-
-#ifndef MAXLIB
-void speedlim_setup(void)
-{
- speedlim_class = class_new(gensym("speedlim"), (t_newmethod)speedlim_new,
- (t_method)speedlim_free, sizeof(t_speedlim), 0, A_DEFFLOAT, 0);
-#else
-void maxlib_speedlim_setup(void)
-{
- speedlim_class = class_new(gensym("maxlib_speedlim"), (t_newmethod)speedlim_new,
- (t_method)speedlim_free, sizeof(t_speedlim), 0, A_DEFFLOAT, 0);
- class_addcreator((t_newmethod)speedlim_new, gensym("speedlim"), A_DEFFLOAT, 0);
-#endif
- class_addbang(speedlim_class, speedlim_bang);
- class_addfloat(speedlim_class, speedlim_float);
- class_addsymbol(speedlim_class, speedlim_symbol);
- class_addlist(speedlim_class, speedlim_list);
- class_addanything(speedlim_class, speedlim_anything);
- class_addmethod(speedlim_class, (t_method)speedlim_ft1, gensym("ft1"), A_FLOAT, 0);
-#ifndef MAXLIB
-
-#else
- class_sethelpsymbol(speedlim_class, gensym("maxlib/speedlim-help.pd"));
-#endif
-}
+/* ------------------------- speedlim ----------------------------------------- */ +/* */ +/* Lets information through only every N milliseconds. */ +/* Written by Krzysztof Czaja for his cyclone library. */ +/* Modified to fit into maxlib by Olaf Matthes <olaf.matthes@gmx.de>. */ +/* 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. */ +/* */ +/* You should have received a copy of the GNU Lesser General Public */ +/* License along with this library; 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. */ +/* */ +/* ---------------------------------------------------------------------------- */ + +/* this is the original copyright notice: */ + +/* Copyright (c) 1997-2002 Miller Puckette and others. + * For information on usage and redistribution, and for a DISCLAIMER OF ALL + * WARRANTIES, see the file, "LICENSE.txt," in this distribution. */ + + +#include <string.h> +#include "m_pd.h" + +#define SPEEDLIM_INISIZE 32 /* LATER rethink */ +#define SPEEDLIM_MAXSIZE 256 /* not used */ + +typedef struct _speedlim +{ + t_object x_ob; + int x_open; + t_float x_delta; + t_symbol *x_selector; + t_float x_float; + t_symbol *x_symbol; + t_gpointer *x_pointer; + int x_size; /* as allocated */ + int x_natoms; /* as used */ + t_atom *x_message; + t_atom x_messini[SPEEDLIM_INISIZE]; + int x_entered; + t_clock *x_clock; +} t_speedlim; + +static t_class *speedlim_class; + +/* a caller must check for nrequested > *sizep */ +/* returns actual number of atoms: requested (success) + or a default value of initial size (failure) */ +/* the result is guaranteed to be >= min(nrequested, inisize) */ +static int speedlim_grow(int nrequested, int *sizep, t_atom **bufp, + int inisize, t_atom *bufini) +{ + int newsize = *sizep * 2; + while (newsize < nrequested) newsize *= 2; + if (*bufp == bufini) + *bufp = (t_atom *)getbytes(newsize * sizeof(**bufp)); + else + *bufp = (t_atom *)resizebytes(*bufp, *sizep * sizeof(**bufp), + newsize * sizeof(**bufp)); + if (*bufp) + *sizep = newsize; + else + { + *bufp = bufini; + nrequested = *sizep = inisize; + } + return (nrequested); +} + +static void speedlim_dooutput(t_speedlim *x, t_symbol *s, int ac, t_atom *av) +{ + x->x_open = 0; /* so there will be no reentrant calls of dooutput */ + x->x_entered = 1; /* this prevents a message from being overridden */ + clock_unset(x->x_clock); + if (s == &s_bang) + outlet_bang(((t_object *)x)->ob_outlet); + else if (s == &s_float) + outlet_float(((t_object *)x)->ob_outlet, x->x_float); + else if (s == &s_symbol && x->x_symbol) + { + /* if x_symbol is null, then symbol &s_ is passed + by outlet_anything() -> typedmess() */ + outlet_symbol(((t_object *)x)->ob_outlet, x->x_symbol); + x->x_symbol = 0; + } + else if (s == &s_pointer && x->x_pointer) + { + /* LATER */ + x->x_pointer = 0; + } + else if (s == &s_list) + outlet_list(((t_object *)x)->ob_outlet, &s_list, ac, av); + else if (s) + outlet_anything(((t_object *)x)->ob_outlet, s, ac, av); + x->x_selector = 0; + x->x_natoms = 0; + if (x->x_delta > 0) + clock_delay(x->x_clock, x->x_delta); + else + x->x_open = 1; + x->x_entered = 0; +} + +static void speedlim_tick(t_speedlim *x) +{ + if (x->x_selector) + speedlim_dooutput(x, x->x_selector, x->x_natoms, x->x_message); + else + x->x_open = 1; +} + +static void speedlim_anything(t_speedlim *x, t_symbol *s, int ac, t_atom *av) +{ + if (x->x_open) + speedlim_dooutput(x, s, ac, av); + else if (s && s != &s_ && !x->x_entered) + { + if (ac > x->x_size) + /* MAXSIZE not used, not even a warning... + LATER consider clipping */ + ac = speedlim_grow(ac, &x->x_size, &x->x_message, + SPEEDLIM_INISIZE, x->x_messini); + x->x_selector = s; + x->x_natoms = ac; + if (ac) + memcpy(x->x_message, av, ac * sizeof(*x->x_message)); + } +} + +static void speedlim_bang(t_speedlim *x) +{ + x->x_selector = &s_bang; + speedlim_anything(x, x->x_selector, 0, 0); +} + +static void speedlim_float(t_speedlim *x, t_float f) +{ + x->x_selector = &s_float; + x->x_float = f; + speedlim_anything(x, x->x_selector, 0, 0); +} + +static void speedlim_symbol(t_speedlim *x, t_symbol *s) +{ + x->x_selector = &s_symbol; + x->x_symbol = s; + speedlim_anything(x, x->x_selector, 0, 0); +} + +/* LATER gpointer */ + +static void speedlim_list(t_speedlim *x, t_symbol *s, int ac, t_atom *av) +{ + x->x_selector = &s_list; + speedlim_anything(x, x->x_selector, ac, av); +} + +static void speedlim_ft1(t_speedlim *x, t_floatarg f) +{ + if (f < 0) + f = 0; /* redundant (and CHECKED) */ + x->x_delta = f; + /* CHECKED: no rearming -- + if clock is set, then new delta value is not used until next tick */ +} + +static void speedlim_free(t_speedlim *x) +{ + if (x->x_message != x->x_messini) + freebytes(x->x_message, x->x_size * sizeof(*x->x_message)); + if (x->x_clock) + clock_free(x->x_clock); +} + +static void *speedlim_new(t_floatarg f) +{ + t_speedlim *x = (t_speedlim *)pd_new(speedlim_class); + x->x_open = 1; /* CHECKED */ + x->x_delta = 0; + x->x_selector = 0; + x->x_float = 0; + x->x_symbol = 0; + x->x_pointer = 0; + x->x_size = SPEEDLIM_INISIZE; + x->x_natoms = 0; + x->x_message = x->x_messini; + x->x_entered = 0; + inlet_new((t_object *)x, (t_pd *)x, &s_float, gensym("ft1")); + outlet_new((t_object *)x, &s_anything); + x->x_clock = clock_new(x, (t_method)speedlim_tick); + speedlim_ft1(x, f); + return (x); +} + +#ifndef MAXLIB +void speedlim_setup(void) +{ + speedlim_class = class_new(gensym("speedlim"), (t_newmethod)speedlim_new, + (t_method)speedlim_free, sizeof(t_speedlim), 0, A_DEFFLOAT, 0); +#else +void maxlib_speedlim_setup(void) +{ + speedlim_class = class_new(gensym("maxlib_speedlim"), (t_newmethod)speedlim_new, + (t_method)speedlim_free, sizeof(t_speedlim), 0, A_DEFFLOAT, 0); + class_addcreator((t_newmethod)speedlim_new, gensym("speedlim"), A_DEFFLOAT, 0); +#endif + class_addbang(speedlim_class, speedlim_bang); + class_addfloat(speedlim_class, speedlim_float); + class_addsymbol(speedlim_class, speedlim_symbol); + class_addlist(speedlim_class, speedlim_list); + class_addanything(speedlim_class, speedlim_anything); + class_addmethod(speedlim_class, (t_method)speedlim_ft1, gensym("ft1"), A_FLOAT, 0); +#ifndef MAXLIB + +#else + class_sethelpsymbol(speedlim_class, gensym("maxlib/speedlim-help.pd")); +#endif +} |