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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
/******************************************************
*
* dmxout_b - implementation file
*
* this is the "blocking" version
*
* copyleft (c) IOhannes m zmölnig
*
* 0603:forum::für::umläute:2008
*
* institute of electronic music and acoustics (iem)
*
******************************************************
*
* license: GNU General Public License v.2
*
******************************************************/
#include "dmx4pd.h"
#include <unistd.h>
#include <string.h>
#include <stdio.h>
static t_class *dmxout_b_class;
static t_class *dmxout_b_class2;
#define NUM_DMXVALUES 512
typedef struct _dmxout_b
{
t_object x_obj;
t_inlet *x_portinlet;
int x_device;
t_float x_port;
int x_portrange;
dmx_t x_values[NUM_DMXVALUES];
} t_dmxout_b;
static void dmxout_b_clearbuf(t_dmxout_b*x)
{
int i=0;
for(i=0; i<NUM_DMXVALUES; i++) x->x_values[i]=0;
}
static void dmxout_b_close(t_dmxout_b*x)
{
if(x->x_device>=0) {
close(x->x_device);
}
x->x_device=-1;
}
static void dmxout_b_open(t_dmxout_b*x, t_symbol*s_devname)
{
int argc=2;
const char *args[2] = {"--dmx", s_devname->s_name};
const char**argv=args;
const char*devname="";
int fd;
dmxout_b_close(x);
if(s_devname && s_devname->s_name)
devname=s_devname->s_name;
verbose(2, "[dmxout_b]: trying to open '%s'", args[1]);
devname=DMXdev(&argc, argv);
if(!devname){
pd_error(x, "couldn't find DMX device");
return;
}
verbose(1, "[dmxout_b] opening %s", devname);
fd = open (devname, O_WRONLY | O_NONBLOCK);
if(fd!=-1) {
x->x_device=fd;
dmxout_b_clearbuf(x);
} else {
pd_error(x, "failed to open DMX-device '%s'",devname);
}
}
static void dmxout_b_doout(t_dmxout_b*x) {
int device = x->x_device;
if(device<=0) {
pd_error(x, "no DMX universe found");
return;
}
lseek (device, 0, SEEK_SET); /* set to the current channel */
write (device, x->x_values, NUM_DMXVALUES); /* write the channel */
}
static void dmxout_b_doout1(t_dmxout_b*x, short port, unsigned char value)
{
x->x_values[port]=value;
dmxout_b_doout(x);
}
static void dmxout_b_float(t_dmxout_b*x, t_float f)
{
unsigned char val=(unsigned char)f;
short port = (short)x->x_port;
if(f<0. || f>255.) {
pd_error(x, "value %f out of bounds [0..255]", f);
return;
}
if(x->x_port<0. || x->x_port>NUM_DMXVALUES) {
pd_error(x, "port %f out of bounds [0..%d]", x->x_port, NUM_DMXVALUES);
return;
}
dmxout_b_doout1(x, port, val);
}
static void dmxout_b_list(t_dmxout_b*x, t_symbol*s, int argc, t_atom*argv)
{
int count=(argc<x->x_portrange)?argc:x->x_portrange;
int i=0;
int errors=0;
int port=x->x_port;
if((port+count)>=NUM_DMXVALUES) {
if(count>NUM_DMXVALUES)count=NUM_DMXVALUES;
port=NUM_DMXVALUES-count;
}
for(i=0; i<count; i++) {
t_float f=atom_getfloat(argv+i);
if(f<0. || f>255.) {
errors++;
if(f<0.)f=0.;
if(f>255)f=255;
}
x->x_values[port+i]=(unsigned char)f;
}
if(errors) {
pd_error(x, "%d valu%s out of bound [0..255]", errors, (1==errors)?"e":"es");
}
dmxout_b_doout(x);
}
static void dmxout_b_port(t_dmxout_b*x, t_float f_baseport, t_floatarg f_portrange)
{
short baseport =(short)f_baseport;
short portrange=(short)f_portrange;
if(baseport<0 || baseport>=NUM_DMXVALUES) {
pd_error(x, "port %f out of bounds [0..%d]", f_baseport, NUM_DMXVALUES);
baseport =0;
}
x->x_port = baseport;
if(portrange<0) {
pd_error(x, "portrange %f<0! setting to 1", portrange);
portrange=1;
} else if (portrange==0) {
portrange=x->x_portrange;
}
if (baseport+portrange>NUM_DMXVALUES) {
pd_error(x, "upper port exceeds %d! clamping", NUM_DMXVALUES);
portrange=NUM_DMXVALUES-baseport;
}
x->x_portrange=portrange;
}
static void *dmxout_b_new(t_symbol*s, int argc, t_atom*argv)
{
t_floatarg baseport=0.f, portrange=0.f;
t_dmxout_b *x = 0;
switch(argc) {
case 2:
x=(t_dmxout_b *)pd_new(dmxout_b_class2);
x->x_portinlet=inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("port"));
baseport=atom_getfloat(argv);
portrange=atom_getfloat(argv+1);
dmxout_b_port(x, baseport, portrange);
break;
case 1:
baseport=atom_getfloat(argv);
case 0:
x=(t_dmxout_b *)pd_new(dmxout_b_class);
x->x_portinlet=floatinlet_new(&x->x_obj, &x->x_port);
x->x_port = baseport;
x->x_portrange = -1;
break;
default:
return 0;
}
x->x_device=-1;
dmxout_b_open(x, gensym(""));
return (x);
}
static void *dmxout_b_free(t_dmxout_b*x)
{
dmxout_b_close(x);
}
void dmxout_b_setup(void)
{
#ifdef DMX4PD_POSTBANNER
DMX4PD_POSTBANNER;
#endif
dmxout_b_class = class_new(gensym("dmxout_b"), (t_newmethod)dmxout_b_new, (t_method)dmxout_b_free,
sizeof(t_dmxout_b),
0,
A_GIMME, A_NULL);
class_addfloat(dmxout_b_class, dmxout_b_float);
class_addmethod(dmxout_b_class, (t_method)dmxout_b_open, gensym("open"), A_SYMBOL, A_NULL);
dmxout_b_class2 = class_new(gensym("dmxout_b"), (t_newmethod)dmxout_b_new, (t_method)dmxout_b_free,
sizeof(t_dmxout_b),
0,
A_GIMME, A_NULL);
class_addlist(dmxout_b_class2, dmxout_b_list);
class_addmethod(dmxout_b_class2, (t_method)dmxout_b_port, gensym("port"),
A_FLOAT, A_DEFFLOAT, A_NULL);
class_addmethod(dmxout_b_class2, (t_method)dmxout_b_open, gensym("open"), A_SYMBOL, A_NULL);
}
|
