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
241
242
243
244
245
246
247
248
249
250
251
|
/* Copyright 2003 Hans-Christoph Steiner <hans@eds.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
* $Id: rawjoystick.c,v 1.1 2003-04-25 03:39:28 eighthave Exp $
*/
static char *version = "$Revision: 1.1 $";
#include <SDL/SDL.h>
#include "m_imp.h"
/*#define DEBUG(x) */
#define DEBUG(x) x
#define RAWJOYSTICK_AXES 6
#define RAWJOYSTICK_BUTTONS 9
/*------------------------------------------------------------------------------
* CLASS DEF
*/
static t_class *rawjoystick_class;
typedef struct _rawjoystick {
t_object x_obj;
SDL_Joystick *x_joystick;
t_int x_devnum;
int read_ok;
int started;
t_outlet *x_axis_out[RAWJOYSTICK_AXES];
t_outlet *x_button_num_out;
t_outlet *x_button_val_out;
t_clock *x_clock;
double x_delaytime;
int x_buttons;
int x_hats;
int x_axes;
} t_rawjoystick;
/*------------------------------------------------------------------------------
*/
static int rawjoystick_close(t_rawjoystick *x) {
DEBUG(post("rawjoystick_CLOSE"));
if ( SDL_JoystickOpened(x->x_devnum) ) {
SDL_JoystickClose(x->x_joystick);
return 1;
}
else {
return 0;
}
}
static int rawjoystick_open(t_rawjoystick *x) {
rawjoystick_close(x);
DEBUG(post("rawjoystick_OPEN"));
/* open device */
SDL_JoystickEventState(SDL_ENABLE);
x->x_joystick = SDL_JoystickOpen(x->x_devnum);
/* test if device open */
/* get name of device */
if ( SDL_JoystickOpened(x->x_devnum) ) {
post ("Configuring %s",SDL_JoystickName(x->x_devnum));
}
else {
return 0;
}
x->x_axes = SDL_JoystickNumAxes(x->x_joystick);
x->x_hats = SDL_JoystickNumHats(x->x_joystick);
x->x_buttons = SDL_JoystickNumButtons(x->x_joystick);
post (" device has %i axes, %i hats, and %i buttons.\n",x->x_axes,x->x_hats,x->x_buttons);
post ("WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING");
post ("This object is under development! The interface could change at anytime!");
post ("As I write cross-platform versions, the interface might have to change.");
post ("WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING");
return 1;
}
static int rawjoystick_read(t_rawjoystick *x,int fd) {
SDL_Event event;
DEBUG(post("rawjoystick_READ"));
if ( ! SDL_JoystickOpened(x->x_devnum) ) {
return 0;
}
post("Joystick read: %s",SDL_JoystickName(x->x_devnum));
if ( SDL_PollEvent(&event) ) {
post("SDL_Event.type: %i",event.type);
post("SDL_JoyAxisEvent.value: %i",event.jaxis.value);
post("SDL_JoyButtonEvent.value: %i",event.jbutton.state);
switch (event.type) {
case SDL_JOYAXISMOTION:
outlet_float (x->x_axis_out[event.jaxis.axis], event.jaxis.value);
break;
case SDL_JOYHATMOTION:
break;
case SDL_JOYBUTTONDOWN:
outlet_float (x->x_button_val_out, 1);
outlet_float (x->x_button_num_out, event.jaxis.axis);
break;
case SDL_JOYBUTTONUP:
outlet_float (x->x_button_val_out, 0);
outlet_float (x->x_button_num_out, event.jaxis.axis);
break;
default:
DEBUG(post("Unhandled event."));
}
}
return 1;
}
/* Actions */
static void rawjoystick_bang(t_rawjoystick* x) {
DEBUG(post("rawjoystick_bang"));
}
static void rawjoystick_float(t_rawjoystick* x) {
DEBUG(post("rawjoystick_float"));
}
// DONE
void rawjoystick_start(t_rawjoystick* x)
{
DEBUG(post("rawjoystick_START"));
if ( ( SDL_JoystickOpened(x->x_devnum) ) && ( ! x->started ) ) {
sys_addpollfn(x->x_devnum, (t_fdpollfn)rawjoystick_read, x);
x->started = 1;
}
}
// DONE
void rawjoystick_stop(t_rawjoystick* x) {
DEBUG(post("rawjoystick_STOP");)
if ( ( SDL_JoystickOpened(x->x_devnum) ) && ( x->started ) ) {
sys_rmpollfn(x->x_devnum);
x->started = 0;
}
}
/* Misc setup functions */
static void rawjoystick_free(t_rawjoystick* x) {
DEBUG(post("rawjoystick_free"));
rawjoystick_stop(x);
if ( SDL_JoystickOpened(x->x_devnum))
SDL_JoystickClose(x->x_joystick);
SDL_Quit();
}
static void *rawjoystick_new(t_float argument) {
int i,joystickNumber;
t_rawjoystick *x = (t_rawjoystick *)pd_new(rawjoystick_class);
DEBUG(post("rawjoystick_NEW"));
post("rawHID objects, %s", version);
post(" by Hans-Christoph Steiner <hans@eds.org>");
/* init vars */
x->x_devnum = 0;
x->read_ok = 1;
x->started = 0;
/* INIT SDL using joystick layer */
if ( SDL_Init( SDL_INIT_JOYSTICK ) == -1 ) {
post("Could not initialize SDL: %s.\n", SDL_GetError());
exit(-1);
}
post("%i joysticks were found:", SDL_NumJoysticks() );
for( i=0; i < SDL_NumJoysticks(); i++ ) {
post(" %s", SDL_JoystickName(i));
}
joystickNumber = (int)argument;
if ( (joystickNumber >= 0) && (joystickNumber < SDL_NumJoysticks() ) )
x->x_devnum = joystickNumber;
else
post("Joystick %i does not exist!",joystickNumber);
/* create outlets for each axis */
for (i = 0; i < RAWJOYSTICK_AXES; i++)
x->x_axis_out[i] = outlet_new(&x->x_obj, &s_float);
/* create outlets for buttons */
x->x_button_num_out = outlet_new(&x->x_obj, &s_float);
x->x_button_val_out = outlet_new(&x->x_obj, &s_float);
/* Open the device and save settings */
if ( ! rawjoystick_open(x) ) return x;
return (x);
}
void rawjoystick_setup(void)
{
DEBUG(post("rawjoystick_setup");)
rawjoystick_class = class_new(gensym("rawjoystick"),
(t_newmethod)rawjoystick_new,
(t_method)rawjoystick_free,
sizeof(t_rawjoystick),0,A_DEFSYM,0);
/* add inlet datatype methods */
class_addfloat(rawjoystick_class,(t_method) rawjoystick_float);
class_addbang(rawjoystick_class,(t_method) rawjoystick_bang);
/* add inlet message methods */
class_addmethod(rawjoystick_class,(t_method) rawjoystick_open,gensym("open"),0);
class_addmethod(rawjoystick_class,(t_method) rawjoystick_close,gensym("close"),0);
class_addmethod(rawjoystick_class,(t_method) rawjoystick_start,gensym("start"),0);
class_addmethod(rawjoystick_class,(t_method) rawjoystick_stop,gensym("stop"),0);
class_addmethod(rawjoystick_class,(t_method) rawjoystick_read,gensym("read"),0);
}
|
