3 * SDL keyboard input support
27 #define KEY_BUFFER_SIZE 16
29 static unsigned char Installed = 0;
31 //-------- Variable accessed by outside functions ---------
32 unsigned char keyd_buffer_type; // 0=No buffer, 1=buffer ASCII, 2=buffer scans
33 unsigned char keyd_repeat;
34 unsigned char keyd_editor_mode;
35 volatile unsigned char keyd_last_pressed;
36 volatile unsigned char keyd_last_released;
37 volatile unsigned char keyd_pressed[256];
38 volatile int keyd_time_when_last_pressed;
40 typedef struct Key_info {
41 ubyte state; // state of key 1 == down, 0 == up
42 ubyte last_state; // previous state of key
43 int counter; // incremented each time key is down in handler
44 fix timewentdown; // simple counter incremented each time in interrupt and key is down
45 fix timehelddown; // counter to tell how long key is down -- gets reset to 0 by key routines
46 ubyte downcount; // number of key counts key was down
47 ubyte upcount; // number of times key was released
50 typedef struct keyboard {
51 unsigned short keybuffer[KEY_BUFFER_SIZE];
53 fix time_pressed[KEY_BUFFER_SIZE];
54 unsigned int keyhead, keytail;
57 static keyboard key_data;
59 typedef struct key_props {
61 unsigned char ascii_value;
62 unsigned char shifted_ascii_value;
66 key_props key_properties[256] = {
68 { "ESC", 255, 255, SDLK_ESCAPE },
69 { "1", '1', '!', SDLK_1 },
70 { "2", '2', '@', SDLK_2 },
71 { "3", '3', '#', SDLK_3 },
72 { "4", '4', '$', SDLK_4 },
73 { "5", '5', '%', SDLK_5 },
74 { "6", '6', '^', SDLK_6 },
75 { "7", '7', '&', SDLK_7 },
76 { "8", '8', '*', SDLK_8 },
77 { "9", '9', '(', SDLK_9 },
78 { "0", '0', ')', SDLK_0 },
79 { "-", '-', '_', SDLK_MINUS },
80 { "=", '=', '+', SDLK_EQUALS },
81 { "BSPC", 255, 255, SDLK_BACKSPACE },
82 { "TAB", 255, 255, SDLK_TAB },
83 { "Q", 'q', 'Q', SDLK_q },
84 { "W", 'w', 'W', SDLK_w },
85 { "E", 'e', 'E', SDLK_e },
86 { "R", 'r', 'R', SDLK_r },
87 { "T", 't', 'T', SDLK_t },
88 { "Y", 'y', 'Y', SDLK_y },
89 { "U", 'u', 'U', SDLK_u },
90 { "I", 'i', 'I', SDLK_i },
91 { "O", 'o', 'O', SDLK_o },
92 { "P", 'p', 'P', SDLK_p },
93 { "[", '[', '{', SDLK_LEFTBRACKET },
94 { "]", ']', '}', SDLK_RIGHTBRACKET },
95 //edited 06/08/99 Matt Mueller - set to correct key_text
96 { "\x83", 255, 255, SDLK_RETURN },
98 { "LCTRL", 255, 255, SDLK_LCTRL },
99 { "A", 'a', 'A', SDLK_a },
100 { "S", 's', 'S', SDLK_s },
101 { "D", 'd', 'D', SDLK_d },
102 { "F", 'f', 'F', SDLK_f },
103 { "G", 'g', 'G', SDLK_g },
104 { "H", 'h', 'H', SDLK_h },
105 { "J", 'j', 'J', SDLK_j },
106 { "K", 'k', 'K', SDLK_k },
107 { "L", 'l', 'L', SDLK_l },
108 //edited 06/08/99 Matt Mueller - set to correct sym
109 { ";", ';', ':', SDLK_SEMICOLON },
111 { "'", '\'', '"', SDLK_QUOTE },
112 //edited 06/08/99 Matt Mueller - set to correct sym
113 { "`", '`', '~', SDLK_BACKQUOTE },
115 { "LSHFT", 255, 255, SDLK_LSHIFT },
116 { "\\", '\\', '|', SDLK_BACKSLASH },
117 { "Z", 'z', 'Z', SDLK_z },
118 { "X", 'x', 'X', SDLK_x },
119 { "C", 'c', 'C', SDLK_c },
120 { "V", 'v', 'V', SDLK_v },
121 { "B", 'b', 'B', SDLK_b },
122 { "N", 'n', 'N', SDLK_n },
123 { "M", 'm', 'M', SDLK_m },
124 //edited 06/08/99 Matt Mueller - set to correct syms
125 { ",", ',', '<', SDLK_COMMA },
126 { ".", '.', '>', SDLK_PERIOD },
127 { "/", '/', '?', SDLK_SLASH },
129 { "RSHFT", 255, 255, SDLK_RSHIFT },
130 { "PAD*", '*', 255, SDLK_KP_MULTIPLY },
131 { "LALT", 255, 255, SDLK_LALT },
132 { "SPC", ' ', ' ', SDLK_SPACE },
133 { "CPSLK", 255, 255, SDLK_CAPSLOCK },
134 { "F1", 255, 255, SDLK_F1 },
135 { "F2", 255, 255, SDLK_F2 },
136 { "F3", 255, 255, SDLK_F3 },
137 { "F4", 255, 255, SDLK_F4 },
138 { "F5", 255, 255, SDLK_F5 },
139 { "F6", 255, 255, SDLK_F6 },
140 { "F7", 255, 255, SDLK_F7 },
141 { "F8", 255, 255, SDLK_F8 },
142 { "F9", 255, 255, SDLK_F9 },
143 { "F10", 255, 255, SDLK_F10 },
144 { "NMLCK", 255, 255, SDLK_NUMLOCK },
145 { "SCLK", 255, 255, SDLK_SCROLLOCK },
146 { "PAD7", 255, 255, SDLK_KP7 },
147 { "PAD8", 255, 255, SDLK_KP8 },
148 { "PAD9", 255, 255, SDLK_KP9 },
149 { "PAD-", 255, 255, SDLK_KP_MINUS },
150 { "PAD4", 255, 255, SDLK_KP4 },
151 { "PAD5", 255, 255, SDLK_KP5 },
152 { "PAD6", 255, 255, SDLK_KP6 },
153 { "PAD+", 255, 255, SDLK_KP_PLUS },
154 { "PAD1", 255, 255, SDLK_KP1 },
155 { "PAD2", 255, 255, SDLK_KP2 },
156 { "PAD3", 255, 255, SDLK_KP3 },
157 { "PAD0", 255, 255, SDLK_KP0 },
158 { "PAD.", 255, 255, SDLK_KP_PERIOD },
159 { "", 255, 255, -1 },
160 { "", 255, 255, -1 },
161 { "", 255, 255, -1 },
162 { "F11", 255, 255, SDLK_F11 },
163 { "F12", 255, 255, SDLK_F12 },
164 { "", 255, 255, -1 },
165 { "", 255, 255, -1 },
166 { "", 255, 255, -1 },
167 { "", 255, 255, -1 },
168 { "", 255, 255, -1 },
169 { "", 255, 255, -1 },
170 { "", 255, 255, -1 },
171 { "", 255, 255, -1 },
172 //edited 06/08/99 Matt Mueller - add pause ability
173 { "PAUSE", 255, 255, SDLK_PAUSE },
175 { "", 255, 255, -1 },
176 { "", 255, 255, -1 },
177 { "", 255, 255, -1 },
178 { "", 255, 255, -1 },
179 { "", 255, 255, -1 },
180 { "", 255, 255, -1 },
181 { "", 255, 255, -1 },
182 { "", 255, 255, -1 },
183 { "", 255, 255, -1 },
184 { "", 255, 255, -1 },
185 { "", 255, 255, -1 },
186 { "", 255, 255, -1 },
187 { "", 255, 255, -1 },
188 { "", 255, 255, -1 },
189 { "", 255, 255, -1 },
190 { "", 255, 255, -1 },
191 { "", 255, 255, -1 },
192 { "", 255, 255, -1 },
193 { "", 255, 255, -1 },
194 { "", 255, 255, -1 },
195 { "", 255, 255, -1 },
196 { "", 255, 255, -1 },
197 { "", 255, 255, -1 },
198 { "", 255, 255, -1 },
199 { "", 255, 255, -1 },
200 { "", 255, 255, -1 },
201 { "", 255, 255, -1 },
202 { "", 255, 255, -1 },
203 { "", 255, 255, -1 },
204 { "", 255, 255, -1 },
205 { "", 255, 255, -1 },
206 { "", 255, 255, -1 },
207 { "", 255, 255, -1 },
208 { "", 255, 255, -1 },
209 { "", 255, 255, -1 },
210 { "", 255, 255, -1 },
211 { "", 255, 255, -1 },
212 { "", 255, 255, -1 },
213 { "", 255, 255, -1 },
214 { "", 255, 255, -1 },
215 { "", 255, 255, -1 },
216 { "", 255, 255, -1 },
217 { "", 255, 255, -1 },
218 { "", 255, 255, -1 },
219 { "", 255, 255, -1 },
220 { "", 255, 255, -1 },
221 { "", 255, 255, -1 },
222 { "", 255, 255, -1 },
223 { "", 255, 255, -1 },
224 { "", 255, 255, -1 },
225 { "", 255, 255, -1 },
226 { "", 255, 255, -1 },
227 { "", 255, 255, -1 },
228 { "", 255, 255, -1 },
229 { "", 255, 255, -1 },
230 { "", 255, 255, -1 },
231 { "", 255, 255, -1 },
232 { "", 255, 255, -1 },
233 //edited 06/08/99 Matt Mueller - set to correct key_text
234 { "PAD\x83",255, 255, SDLK_KP_ENTER },
236 //edited 06/08/99 Matt Mueller - set to correct sym
237 { "RCTRL", 255, 255, SDLK_RCTRL },
239 { "LCMD", 255, 255, SDLK_LMETA },
240 { "RCMD", 255, 255, SDLK_RMETA },
241 { "", 255, 255, -1 },
242 { "", 255, 255, -1 },
243 { "", 255, 255, -1 },
244 { "", 255, 255, -1 },
245 { "", 255, 255, -1 },
246 { "", 255, 255, -1 },
247 { "", 255, 255, -1 },
248 { "", 255, 255, -1 },
249 { "", 255, 255, -1 },
250 { "", 255, 255, -1 },
251 { "", 255, 255, -1 },
252 { "", 255, 255, -1 },
253 { "", 255, 255, -1 },
254 { "", 255, 255, -1 },
255 { "", 255, 255, -1 },
256 { "", 255, 255, -1 },
257 { "", 255, 255, -1 },
258 { "", 255, 255, -1 },
259 { "", 255, 255, -1 },
260 { "", 255, 255, -1 },
261 { "", 255, 255, -1 },
262 { "PAD/", 255, 255, SDLK_KP_DIVIDE },
263 { "", 255, 255, -1 },
264 //edited 06/08/99 Matt Mueller - add printscreen ability
265 { "PRSCR", 255, 255, SDLK_PRINT },
267 { "RALT", 255, 255, SDLK_RALT },
268 { "", 255, 255, -1 },
269 { "", 255, 255, -1 },
270 { "", 255, 255, -1 },
271 { "", 255, 255, -1 },
272 { "", 255, 255, -1 },
273 { "", 255, 255, -1 },
274 { "", 255, 255, -1 },
275 { "", 255, 255, -1 },
276 { "", 255, 255, -1 },
277 { "", 255, 255, -1 },
278 { "", 255, 255, -1 },
279 { "", 255, 255, -1 },
280 { "", 255, 255, -1 },
281 { "", 255, 255, -1 },
282 { "HOME", 255, 255, SDLK_HOME },
283 //edited 06/08/99 Matt Mueller - set to correct key_text
284 { "UP", 255, 255, SDLK_UP },
286 { "PGUP", 255, 255, SDLK_PAGEUP },
287 { "", 255, 255, -1 },
288 //edited 06/08/99 Matt Mueller - set to correct key_text
289 { "LEFT", 255, 255, SDLK_LEFT },
291 { "", 255, 255, -1 },
292 //edited 06/08/99 Matt Mueller - set to correct key_text
293 { "RIGHT", 255, 255, SDLK_RIGHT },
295 { "", 255, 255, -1 },
296 //edited 06/08/99 Matt Mueller - set to correct key_text
297 { "END", 255, 255, SDLK_END },
299 { "DOWN", 255, 255, SDLK_DOWN },
300 { "PGDN", 255, 255, SDLK_PAGEDOWN },
301 { "INS", 255, 255, SDLK_INSERT },
302 { "DEL", 255, 255, SDLK_DELETE },
303 { "", 255, 255, -1 },
304 { "", 255, 255, -1 },
305 { "", 255, 255, -1 },
306 { "", 255, 255, -1 },
307 { "", 255, 255, -1 },
308 { "", 255, 255, -1 },
309 { "", 255, 255, -1 },
310 { "", 255, 255, -1 },
311 { "", 255, 255, -1 },
312 { "", 255, 255, -1 },
313 { "", 255, 255, -1 },
314 { "", 255, 255, -1 },
315 { "", 255, 255, -1 },
316 { "", 255, 255, -1 },
317 { "", 255, 255, -1 },
318 { "", 255, 255, -1 },
319 { "", 255, 255, -1 },
320 { "", 255, 255, -1 },
321 { "", 255, 255, -1 },
322 { "", 255, 255, -1 },
323 { "", 255, 255, -1 },
324 { "", 255, 255, -1 },
325 { "", 255, 255, -1 },
326 { "", 255, 255, -1 },
327 { "", 255, 255, -1 },
328 { "", 255, 255, -1 },
329 { "", 255, 255, -1 },
330 { "", 255, 255, -1 },
331 { "", 255, 255, -1 },
332 { "", 255, 255, -1 },
333 { "", 255, 255, -1 },
334 { "", 255, 255, -1 },
335 { "", 255, 255, -1 },
336 { "", 255, 255, -1 },
337 { "", 255, 255, -1 },
338 { "", 255, 255, -1 },
339 { "", 255, 255, -1 },
340 { "", 255, 255, -1 },
341 { "", 255, 255, -1 },
342 { "", 255, 255, -1 },
343 { "", 255, 255, -1 },
344 { "", 255, 255, -1 },
345 { "", 255, 255, -1 },
346 { "", 255, 255, -1 },
351 void key_buid_key_text(void)
355 unsigned char key_to_ascii(int keycode )
359 shifted = keycode & KEY_SHIFTED;
363 return key_properties[keycode].shifted_ascii_value;
365 return key_properties[keycode].ascii_value;
369 /* The list of keybindings */
370 static char *key_binding_list[256];
373 /* get the action bound to a key, if any */
374 char *key_binding(ubyte keycode)
376 return key_binding_list[keycode];
380 /* Write key bindings to file */
381 void key_write_bindings(CFILE *file)
385 for (i = 0; i < 256; i++)
386 if (key_binding_list[i])
387 PHYSFSX_printf(file, "bind %s \"%s\"\n", key_text[i], key_binding_list[i]);
392 /* FIXME: key_text is not really adequate for this */
393 void key_cmd_bind(int argc, char **argv)
395 char buf[CMD_MAX_LENGTH] = "";
396 unsigned char key = 0;
401 con_printf(CON_NORMAL, "key bindings:\n");
402 for (i = 0; i < 256; i++) {
403 if (!key_binding_list[i])
405 con_printf(CON_NORMAL, "%s: %s\n", key_text[i], key_binding_list[i]);
410 for (i = 2; i < argc; i++) {
412 strncat(buf, " ", CMD_MAX_LENGTH);
413 strncat(buf, argv[i], CMD_MAX_LENGTH);
416 for (i = 0; i < 256; i++) {
417 if (!stricmp(argv[1], key_text[i])) {
424 con_printf(CON_CRITICAL, "bind: key %s not found\n", argv[1]);
428 if (key_binding_list[key])
429 d_free(key_binding_list[key]);
430 key_binding_list[key] = d_strdup(buf);
435 void key_cmd_unbind(int argc, char **argv)
442 for (key = 0; key < 256; key++) {
443 if (!stricmp(argv[1], key_text[key])) {
448 if (key_binding_list[key])
449 d_free(key_binding_list[key]);
450 key_binding_list[key] = NULL;
454 static void key_handle_binding(int keycode, int state)
456 if (!key_binding_list[keycode])
462 if (Function_mode != FMODE_GAME)
468 if (!state && key_binding_list[keycode][0] == '+')
469 cmd_appendf("-%s", &key_binding_list[keycode][1]);
471 cmd_append(key_binding_list[keycode]);
475 void key_handler(SDL_KeyboardEvent *event)
478 int i, keycode, event_key, key_state;
482 event_key = event->keysym.sym;
484 key_state = (event->state == SDL_PRESSED); // !(wInfo & KF_UP);
485 //=====================================================
486 //Here a translation from win keycodes to mac keycodes!
487 //=====================================================
489 for (i = 255; i >= 0; i--) {
492 key = &(key_data.keys[keycode]);
493 if (key_properties[i].sym == event_key) {
495 key_handle_binding(keycode, state);
497 state = key->last_state;
499 if ( key->last_state == state ) {
502 keyd_last_pressed = keycode;
503 keyd_time_when_last_pressed = timer_get_fixed_seconds();
507 keyd_last_pressed = keycode;
508 keyd_pressed[keycode] = 1;
509 key->downcount += state;
511 key->timewentdown = keyd_time_when_last_pressed = timer_get_fixed_seconds();
514 keyd_pressed[keycode] = 0;
515 keyd_last_released = keycode;
516 key->upcount += key->state;
519 key->timehelddown += timer_get_fixed_seconds() - key->timewentdown;
522 if ( (state && !key->last_state) || (state && key->last_state && (key->counter > 30) && (key->counter & 0x01)) ) {
523 if ( keyd_pressed[KEY_LSHIFT] || keyd_pressed[KEY_RSHIFT])
524 keycode |= KEY_SHIFTED;
525 if ( keyd_pressed[KEY_LALT] || keyd_pressed[KEY_RALT])
526 keycode |= KEY_ALTED;
527 if ( keyd_pressed[KEY_LCTRL] || keyd_pressed[KEY_RCTRL])
528 keycode |= KEY_CTRLED;
529 if ( keyd_pressed[KEY_DELETE] )
530 keycode |= KEY_DEBUGGED;
531 if ( keyd_pressed[KEY_LMETA] || keyd_pressed[KEY_RMETA])
532 keycode |= KEY_METAED;
534 temp = key_data.keytail+1;
535 if ( temp >= KEY_BUFFER_SIZE ) temp=0;
536 if (temp!=key_data.keyhead) {
537 key_data.keybuffer[key_data.keytail] = keycode;
538 key_data.time_pressed[key_data.keytail] = keyd_time_when_last_pressed;
539 key_data.keytail = temp;
542 key->last_state = state;
550 for (i = 0; i < 256; i++)
551 if (key_binding_list[i])
552 d_free(key_binding_list[i]);
561 if (Installed) return;
565 keyd_time_when_last_pressed = timer_get_fixed_seconds();
566 keyd_buffer_type = 1;
570 key_text[i] = key_properties[i].key_text;
572 cmd_addcommand("bind", key_cmd_bind);
573 cmd_addcommand("unbind", key_cmd_unbind);
575 // Clear the keyboard array
588 key_data.keyhead = key_data.keytail = 0;
590 //Clear the keyboard buffer
591 for (i=0; i<KEY_BUFFER_SIZE; i++ ) {
592 key_data.keybuffer[i] = 0;
593 key_data.time_pressed[i] = 0;
596 //use gettimeofday here:
597 curtime = timer_get_fixed_seconds();
599 for (i=0; i<256; i++ ) {
601 key_data.keys[i].state = 1;
602 key_data.keys[i].last_state = 0;
603 key_data.keys[i].timewentdown = curtime;
604 key_data.keys[i].downcount=0;
605 key_data.keys[i].upcount=0;
606 key_data.keys[i].timehelddown = 0;
607 key_data.keys[i].counter = 0;
614 if ( n >= KEY_BUFFER_SIZE ) n=0;
620 int is_one_waiting = 0;
622 if (key_data.keytail!=key_data.keyhead)
624 return is_one_waiting;
633 if (key_data.keytail!=key_data.keyhead) {
634 key = key_data.keybuffer[key_data.keyhead];
635 key_data.keyhead = add_one(key_data.keyhead);
637 //added 9/3/98 by Matt Mueller to free cpu time instead of hogging during menus and such
639 //end addition - Matt Mueller
644 int key_inkey_time(fix * time)
651 if (key_data.keytail!=key_data.keyhead) {
652 key = key_data.keybuffer[key_data.keyhead];
653 *time = key_data.time_pressed[key_data.keyhead];
654 key_data.keyhead = add_one(key_data.keyhead);
663 if (key_data.keytail!=key_data.keyhead)
664 key = key_data.keybuffer[key_data.keyhead];
677 while (!key_checkch())
682 unsigned int key_get_shift_status()
684 unsigned int shift_status = 0;
686 if ( keyd_pressed[KEY_LSHIFT] || keyd_pressed[KEY_RSHIFT] )
687 shift_status |= KEY_SHIFTED;
689 if ( keyd_pressed[KEY_LALT] || keyd_pressed[KEY_RALT] )
690 shift_status |= KEY_ALTED;
692 if ( keyd_pressed[KEY_LCTRL] || keyd_pressed[KEY_RCTRL] )
693 shift_status |= KEY_CTRLED;
695 if ( keyd_pressed[KEY_LMETA] || keyd_pressed[KEY_RMETA] )
696 shift_status |= KEY_METAED;
699 if (keyd_pressed[KEY_DELETE])
700 shift_status |=KEY_DEBUGGED;
706 // Returns the number of seconds this key has been down since last call.
707 fix key_down_time(int scancode)
712 if ((scancode<0)|| (scancode>255)) return 0;
714 if (!keyd_pressed[scancode]) {
715 time_down = key_data.keys[scancode].timehelddown;
716 key_data.keys[scancode].timehelddown = 0;
718 time = timer_get_fixed_seconds();
719 time_down = time - key_data.keys[scancode].timewentdown;
720 key_data.keys[scancode].timewentdown = time;
726 unsigned int key_down_count(int scancode)
730 if ((scancode<0)|| (scancode>255)) return 0;
732 n = key_data.keys[scancode].downcount;
733 key_data.keys[scancode].downcount = 0;
738 unsigned int key_up_count(int scancode)
742 if ((scancode<0)|| (scancode>255)) return 0;
744 n = key_data.keys[scancode].upcount;
745 key_data.keys[scancode].upcount = 0;