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-rw-r--r--src/iemlib2/bpe.c125
1 files changed, 125 insertions, 0 deletions
diff --git a/src/iemlib2/bpe.c b/src/iemlib2/bpe.c
new file mode 100644
index 0000000..c011424
--- /dev/null
+++ b/src/iemlib2/bpe.c
@@ -0,0 +1,125 @@
+/* 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 - 2003 */
+
+#ifdef NT
+#pragma warning( disable : 4244 )
+#pragma warning( disable : 4305 )
+#endif
+
+#include "m_pd.h"
+#include "iemlib.h"
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <math.h>
+
+/* ------------------------ bpe ---------------------------- */
+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"));
+}
+