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-rw-r--r--src/0x2e.c178
1 files changed, 178 insertions, 0 deletions
diff --git a/src/0x2e.c b/src/0x2e.c
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+/******************************************************
+ *
+ * zexy - implementation file
+ *
+ * copyleft (c) IOhannes m zmölnig
+ *
+ * 1999:forum::für::umläute:2004
+ *
+ * institute of electronic music and acoustics (iem)
+ *
+ ******************************************************
+ *
+ * license: GNU General Public License v.2
+ *
+ ******************************************************/
+
+/* 2305:forum::für::umläute:2001 */
+
+/*skalar multiplikation */
+
+
+#include "zexy.h"
+
+static t_class *scalmul_class;
+static t_class *scalmul_scal_class;
+
+typedef struct _scalmul
+{
+ t_object x_obj;
+
+ t_int n1, n2;
+
+ t_float *buf1, *buf2;
+
+ t_float f;
+} t_scalmul;
+
+
+static void scalmul_lst2(t_scalmul *x, t_symbol *s, int argc, t_atom *argv)
+{
+ t_float *fp;
+ if (x->n2 != argc) {
+ freebytes(x->buf2, x->n2 * sizeof(t_float));
+ x->n2 = argc;
+ x->buf2=(t_float *)getbytes(sizeof(t_float)*x->n2);
+ };
+ fp = x->buf2;
+ while(argc--)*fp++=atom_getfloat(argv++);
+}
+
+static void scalmul_lst(t_scalmul *x, t_symbol *s, int argc, t_atom *argv)
+{
+ t_float *fp;
+ t_atom *ap;
+ int n;
+
+ if (argc){
+ if (x->n1 != argc) {
+ freebytes(x->buf1, x->n1 * sizeof(t_float));
+ x->n1 = argc;
+ x->buf1=(t_float *)getbytes(sizeof(t_float)*x->n1);
+ };
+ fp = x->buf1;
+ while(argc--)*fp++=atom_getfloat(argv++);
+ }
+
+ if (x->n1*x->n2==1){
+ outlet_float(x->x_obj.ob_outlet, *x->buf1**x->buf2);
+ return;
+ }
+ if (x->n1==1){
+ t_atom *a;
+ int i = x->n2;
+ t_float f = *x->buf1;
+ fp = x->buf2;
+ n = x->n2;
+ ap = (t_atom *)getbytes(sizeof(t_atom)*n);
+ a = ap;
+ while(i--){
+ SETFLOAT(a, *fp++*f);
+ a++;
+ }
+ } else if (x->n2==1){
+ t_float f = *x->buf2;
+ t_atom *a;
+ int i = x->n1;
+ n = x->n1;
+ ap = (t_atom *)getbytes(sizeof(t_atom)*n);
+ a = ap;
+ fp = x->buf1;
+ while(i--){
+ SETFLOAT(a, *fp++*f);
+ a++;
+ }
+ } else {
+ t_atom *a;
+ int i;
+ t_float *fp2=x->buf2;
+ fp = x->buf1;
+ n = x->n1;
+ if (x->n1!=x->n2){
+ post("scalar multiplication: truncating vectors to the same length");
+ if (x->n2<x->n1)n=x->n2;
+ }
+ ap = (t_atom *)getbytes(sizeof(t_atom)*n);
+ a = ap;
+ i=n;
+ while(i--){
+ SETFLOAT(a, *fp++**fp2++);
+ a++;
+ }
+ }
+ outlet_list(x->x_obj.ob_outlet, gensym("list"), n, ap);
+ freebytes(ap, sizeof(t_atom)*n);
+}
+static void scalmul_free(t_scalmul *x)
+{
+ freebytes(x->buf1, sizeof(t_float)*x->n1);
+ freebytes(x->buf2, sizeof(t_float)*x->n2);
+}
+
+static void *scalmul_new(t_symbol *s, int argc, t_atom *argv)
+{
+ t_scalmul *x;
+
+ if (argc-1){
+ x = (t_scalmul *)pd_new(scalmul_class);
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("list"), gensym(""));
+ } else x = (t_scalmul *)pd_new(scalmul_scal_class);
+
+ outlet_new(&x->x_obj, 0);
+
+ x->n1 =1;
+ x->buf1 =(t_float*)getbytes(sizeof(t_float));
+ *x->buf1=0;
+
+ if (argc)scalmul_lst2(x, gensym("list"), argc, argv);
+ else {
+ x->n2 =1;
+ x->buf2 =(t_float*)getbytes(sizeof(t_float));
+ *x->buf2=0;
+ }
+
+ if (argc==1)floatinlet_new(&x->x_obj, x->buf2);
+
+ return (x);
+}
+
+void dot_setup(void)
+{
+ scalmul_class = class_new(gensym("."), (t_newmethod)scalmul_new,
+ (t_method)scalmul_free, sizeof(t_scalmul), 0, A_GIMME, 0);
+ class_addlist(scalmul_class, scalmul_lst);
+ class_addmethod (scalmul_class, (t_method)scalmul_lst2, gensym(""), A_GIMME, 0);
+ scalmul_scal_class = class_new(gensym("."), 0, (t_method)scalmul_free,
+ sizeof(t_scalmul), 0, 0);
+ class_addlist(scalmul_scal_class, scalmul_lst);
+
+ class_sethelpsymbol(scalmul_class, gensym("zexy/scalarmult"));
+ class_sethelpsymbol(scalmul_scal_class, gensym("zexy/scalarmult"));
+ zexy_register(".");
+}
+
+void z_dot_setup(void)
+{
+ dot_setup();
+}
+
+void z_0x2e_setup(void)
+{
+ dot_setup();
+}
+
+void setup_0x2e(void)
+{
+ dot_setup();
+}
+