1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/******************************************************
*
* 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;
ZEXY_USEVAR(s);
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;
ZEXY_USEVAR(s);
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;
ZEXY_USEVAR(s);
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 setup_0x2e(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(".");
}
|
