diff options
author | musil <tmusil@users.sourceforge.net> | 2006-12-09 02:00:52 +0000 |
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committer | musil <tmusil@users.sourceforge.net> | 2006-12-09 02:00:52 +0000 |
commit | d6b088044e161a27d49df537bbb6d998a8d0e50d (patch) | |
tree | 1a1b3a30e994767f4ef97b90194782258f2baa8a /iemlib2/src/bpe.c | |
parent | 32dc0c0deb13ce57f099f616ddc427296970d8a5 (diff) |
// class_sethelpsymbol();
changed help-*.pd to *-help.pd
chanded file structure to standard
1st step remove old
svn path=/trunk/externals/iemlib/; revision=6756
Diffstat (limited to 'iemlib2/src/bpe.c')
-rw-r--r-- | iemlib2/src/bpe.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/iemlib2/src/bpe.c b/iemlib2/src/bpe.c new file mode 100644 index 0000000..a1311cc --- /dev/null +++ b/iemlib2/src/bpe.c @@ -0,0 +1,119 @@ +/* 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 - 2006 */ + +#include "m_pd.h" +#include "iemlib.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; + t_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; + t_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")); +} |