diff options
Diffstat (limited to 'src/iemlib2/bpe.c')
-rw-r--r-- | src/iemlib2/bpe.c | 244 |
1 files changed, 122 insertions, 122 deletions
diff --git a/src/iemlib2/bpe.c b/src/iemlib2/bpe.c index 5797ba0..bc31ef8 100644 --- a/src/iemlib2/bpe.c +++ b/src/iemlib2/bpe.c @@ -1,122 +1,122 @@ -/* For information on usage and redistribution, and for a DISCLAIMER OF ALL
-* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
-
-iemlib2 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */
-
-#include "m_pd.h"
-#include "iemlib.h"
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <math.h>
-
-/* --------------------------- bpe -------------------------------- */
-/* -- break-point-envelope, convert a list of value-time-doubles -- */
-/* ------- into a time-scheduled stream of value-time-pairs ------- */
-
-static t_class *bpe_class;
-
-typedef struct _bpe
-{
- t_object x_obj;
- t_clock *x_clock;
- int x_maxnum;
- int x_curnum;
- int x_curindex;
- t_atom *x_beg;
- void *x_out_val;
- void *x_out_time;
- void *x_out_finished;
-} t_bpe;
-
-static void bpe_stop(t_bpe *x)
-{
- clock_unset(x->x_clock);
-}
-
-static void bpe_tick(t_bpe *x)
-{
- t_atom *vec = x->x_beg;
- float val, time;
-
- if(x->x_curindex >= x->x_curnum)
- {
- bpe_stop(x);
- outlet_bang(x->x_out_finished);
- }
- else
- {
- vec += x->x_curindex;
- val = atom_getfloat(vec++);
- time = atom_getfloat(vec);
- outlet_float(x->x_out_time, time);
- outlet_float(x->x_out_val, val);
- x->x_curindex += 2;
- clock_delay(x->x_clock, time);
- }
-}
-
-static void bpe_bang(t_bpe *x)
-{
- t_atom *vec = x->x_beg;
- float val, time;
-
- if(x->x_curnum)
- {
- x->x_curindex = 2;
- val = atom_getfloat(vec++);
- time = atom_getfloat(vec);
- outlet_float(x->x_out_time, time);
- outlet_float(x->x_out_val, val);
- clock_delay(x->x_clock, time);
- }
-}
-
-static void bpe_list(t_bpe *x, t_symbol *s, int ac, t_atom *av)
-{
- int n = ac & 0xfffffffe, i;
- t_atom *vec = x->x_beg;
- if(n > x->x_maxnum)
- {
- freebytes(x->x_beg, x->x_maxnum*sizeof(t_atom));
- x->x_maxnum = 2 + n;
- x->x_beg = (t_atom *)getbytes(x->x_maxnum*sizeof(t_atom));
- vec = x->x_beg;
- }
- x->x_curnum = n;
- for(i=0; i<n; i++)
- {
- *vec++ = *av++;
- }
-}
-
-static void bpe_free(t_bpe *x)
-{
- freebytes(x->x_beg, x->x_maxnum*sizeof(t_atom));
- clock_free(x->x_clock);
-}
-
-static void *bpe_new(void)
-{
- t_bpe *x = (t_bpe *)pd_new(bpe_class);
-
- x->x_curindex = 0;
- x->x_maxnum = 20;
- x->x_curnum = 0;
- x->x_beg = (t_atom *)getbytes(x->x_maxnum*sizeof(t_atom));
- x->x_clock = clock_new(x, (t_method)bpe_tick);
- x->x_out_val = outlet_new(&x->x_obj, &s_float);
- x->x_out_time = outlet_new(&x->x_obj, &s_float);
- x->x_out_finished = outlet_new(&x->x_obj, &s_bang);
- return (x);
-}
-
-void bpe_setup(void)
-{
- bpe_class = class_new(gensym("bpe"), (t_newmethod)bpe_new,
- (t_method)bpe_free, sizeof(t_bpe), 0, 0);
- class_addmethod(bpe_class, (t_method)bpe_stop, gensym("stop"), 0);
- class_addbang(bpe_class, bpe_bang);
- class_addlist(bpe_class, (t_method)bpe_list);
- class_sethelpsymbol(bpe_class, gensym("iemhelp/help-bpe"));
-}
+/* For information on usage and redistribution, and for a DISCLAIMER OF ALL +* WARRANTIES, see the file, "LICENSE.txt," in this distribution. + +iemlib2 written by Thomas Musil, Copyright (c) IEM KUG Graz Austria 2000 - 2005 */ + +#include "m_pd.h" +#include "iemlib.h" +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <math.h> + +/* --------------------------- bpe -------------------------------- */ +/* -- break-point-envelope, convert a list of value-time-doubles -- */ +/* ------- into a time-scheduled stream of value-time-pairs ------- */ + +static t_class *bpe_class; + +typedef struct _bpe +{ + t_object x_obj; + t_clock *x_clock; + int x_maxnum; + int x_curnum; + int x_curindex; + t_atom *x_beg; + void *x_out_val; + void *x_out_time; + void *x_out_finished; +} t_bpe; + +static void bpe_stop(t_bpe *x) +{ + clock_unset(x->x_clock); +} + +static void bpe_tick(t_bpe *x) +{ + t_atom *vec = x->x_beg; + float val, time; + + if(x->x_curindex >= x->x_curnum) + { + bpe_stop(x); + outlet_bang(x->x_out_finished); + } + else + { + vec += x->x_curindex; + val = atom_getfloat(vec++); + time = atom_getfloat(vec); + outlet_float(x->x_out_time, time); + outlet_float(x->x_out_val, val); + x->x_curindex += 2; + clock_delay(x->x_clock, time); + } +} + +static void bpe_bang(t_bpe *x) +{ + t_atom *vec = x->x_beg; + float val, time; + + if(x->x_curnum) + { + x->x_curindex = 2; + val = atom_getfloat(vec++); + time = atom_getfloat(vec); + outlet_float(x->x_out_time, time); + outlet_float(x->x_out_val, val); + clock_delay(x->x_clock, time); + } +} + +static void bpe_list(t_bpe *x, t_symbol *s, int ac, t_atom *av) +{ + int n = ac & 0xfffffffe, i; + t_atom *vec = x->x_beg; + if(n > x->x_maxnum) + { + freebytes(x->x_beg, x->x_maxnum*sizeof(t_atom)); + x->x_maxnum = 2 + n; + x->x_beg = (t_atom *)getbytes(x->x_maxnum*sizeof(t_atom)); + vec = x->x_beg; + } + x->x_curnum = n; + for(i=0; i<n; i++) + { + *vec++ = *av++; + } +} + +static void bpe_free(t_bpe *x) +{ + freebytes(x->x_beg, x->x_maxnum*sizeof(t_atom)); + clock_free(x->x_clock); +} + +static void *bpe_new(void) +{ + t_bpe *x = (t_bpe *)pd_new(bpe_class); + + x->x_curindex = 0; + x->x_maxnum = 20; + x->x_curnum = 0; + x->x_beg = (t_atom *)getbytes(x->x_maxnum*sizeof(t_atom)); + x->x_clock = clock_new(x, (t_method)bpe_tick); + x->x_out_val = outlet_new(&x->x_obj, &s_float); + x->x_out_time = outlet_new(&x->x_obj, &s_float); + x->x_out_finished = outlet_new(&x->x_obj, &s_bang); + return (x); +} + +void bpe_setup(void) +{ + bpe_class = class_new(gensym("bpe"), (t_newmethod)bpe_new, + (t_method)bpe_free, sizeof(t_bpe), 0, 0); + class_addmethod(bpe_class, (t_method)bpe_stop, gensym("stop"), 0); + class_addbang(bpe_class, bpe_bang); + class_addlist(bpe_class, (t_method)bpe_list); + class_sethelpsymbol(bpe_class, gensym("iemhelp/help-bpe")); +} |