File: vvminus.c

package info (click to toggle)
pd-smlib 0.12.2-1
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd, stretch
  • size: 828 kB
  • ctags: 642
  • sloc: ansic: 2,982; makefile: 345
file content (142 lines) | stat: -rw-r--r-- 3,367 bytes parent folder | download | duplicates (3)
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
#include "defines.h"

/*--------------- vvminus ---------------*/
/* vector substraction
*/

static t_class *vvminus_class;
static t_class *vvminus_scal_class;

typedef struct _vvminus
{
  t_object x_obj;

  t_int n1, n2;

  t_float *buf1, *buf2;

  t_float f;
} t_vvminus;


static void vvminus_lst2(t_vvminus *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 vvminus_lst(t_vvminus *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, f-*fp++);
      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 vvminus_free(t_vvminus *x)
{
  freebytes(x->buf1, sizeof(t_float)*x->n1);
  freebytes(x->buf2, sizeof(t_float)*x->n2);
}

static void *vvminus_new(t_symbol *s, int argc, t_atom *argv)
{
  t_vvminus *x;

  if (argc-1){
    x = (t_vvminus *)pd_new(vvminus_class);
    inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("list"), gensym(""));
  } else x = (t_vvminus *)pd_new(vvminus_scal_class);

  outlet_new(&x->x_obj, 0);

  x->n1   =1;
  x->buf1 =(t_float*)getbytes(sizeof(t_float));
  *x->buf1=0;

  if (argc)vvminus_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 vvminus_setup(void)
{
  vvminus_class = class_new(gensym("vvminus"), (t_newmethod)vvminus_new, 
			    (t_method)vvminus_free, sizeof(t_vvminus), 0, A_GIMME, 0);
  class_addcreator((t_newmethod)vvminus_new, gensym("vv-"), A_GIMME, 0);
  class_addlist(vvminus_class, vvminus_lst);
  class_addmethod  (vvminus_class, (t_method)vvminus_lst2, gensym(""), A_GIMME, 0);
  vvminus_scal_class = class_new(gensym("vv-"), 0, (t_method)vvminus_free, 
				 sizeof(t_vvminus), 0, 0);
  class_addlist(vvminus_scal_class, vvminus_lst);
}