3 * SDL keyboard input support
25 #define KEY_BUFFER_SIZE 16
27 static unsigned char Installed = 0;
29 //-------- Variable accessed by outside functions ---------
30 unsigned char keyd_buffer_type; // 0=No buffer, 1=buffer ASCII, 2=buffer scans
31 unsigned char keyd_repeat;
32 unsigned char keyd_editor_mode;
33 volatile unsigned char keyd_last_pressed;
34 volatile unsigned char keyd_last_released;
35 volatile unsigned char keyd_pressed[256];
36 volatile int keyd_time_when_last_pressed;
38 typedef struct Key_info {
39 ubyte state; // state of key 1 == down, 0 == up
40 ubyte last_state; // previous state of key
41 int counter; // incremented each time key is down in handler
42 fix timewentdown; // simple counter incremented each time in interrupt and key is down
43 fix timehelddown; // counter to tell how long key is down -- gets reset to 0 by key routines
44 ubyte downcount; // number of key counts key was down
45 ubyte upcount; // number of times key was released
48 typedef struct keyboard {
49 unsigned short keybuffer[KEY_BUFFER_SIZE];
51 fix time_pressed[KEY_BUFFER_SIZE];
52 unsigned int keyhead, keytail;
55 static keyboard key_data;
57 typedef struct key_props {
59 unsigned char ascii_value;
60 unsigned char shifted_ascii_value;
64 key_props key_properties[256] = {
66 { "ESC", 255, 255, SDLK_ESCAPE },
67 { "1", '1', '!', SDLK_1 },
68 { "2", '2', '@', SDLK_2 },
69 { "3", '3', '#', SDLK_3 },
70 { "4", '4', '$', SDLK_4 },
71 { "5", '5', '%', SDLK_5 },
72 { "6", '6', '^', SDLK_6 },
73 { "7", '7', '&', SDLK_7 },
74 { "8", '8', '*', SDLK_8 },
75 { "9", '9', '(', SDLK_9 },
76 { "0", '0', ')', SDLK_0 },
77 { "-", '-', '_', SDLK_MINUS },
78 { "=", '=', '+', SDLK_EQUALS },
79 { "BSPC", 255, 255, SDLK_BACKSPACE },
80 { "TAB", 255, 255, SDLK_TAB },
81 { "Q", 'q', 'Q', SDLK_q },
82 { "W", 'w', 'W', SDLK_w },
83 { "E", 'e', 'E', SDLK_e },
84 { "R", 'r', 'R', SDLK_r },
85 { "T", 't', 'T', SDLK_t },
86 { "Y", 'y', 'Y', SDLK_y },
87 { "U", 'u', 'U', SDLK_u },
88 { "I", 'i', 'I', SDLK_i },
89 { "O", 'o', 'O', SDLK_o },
90 { "P", 'p', 'P', SDLK_p },
91 { "[", '[', '{', SDLK_LEFTBRACKET },
92 { "]", ']', '}', SDLK_RIGHTBRACKET },
93 //edited 06/08/99 Matt Mueller - set to correct key_text
94 { "\x83", 255, 255, SDLK_RETURN },
96 { "LCTRL", 255, 255, SDLK_LCTRL },
97 { "A", 'a', 'A', SDLK_a },
98 { "S", 's', 'S', SDLK_s },
99 { "D", 'd', 'D', SDLK_d },
100 { "F", 'f', 'F', SDLK_f },
101 { "G", 'g', 'G', SDLK_g },
102 { "H", 'h', 'H', SDLK_h },
103 { "J", 'j', 'J', SDLK_j },
104 { "K", 'k', 'K', SDLK_k },
105 { "L", 'l', 'L', SDLK_l },
106 //edited 06/08/99 Matt Mueller - set to correct sym
107 { ";", ';', ':', SDLK_SEMICOLON },
109 { "'", '\'', '"', SDLK_QUOTE },
110 //edited 06/08/99 Matt Mueller - set to correct sym
111 { "`", '`', '~', SDLK_BACKQUOTE },
113 { "LSHFT", 255, 255, SDLK_LSHIFT },
114 { "\\", '\\', '|', SDLK_BACKSLASH },
115 { "Z", 'z', 'Z', SDLK_z },
116 { "X", 'x', 'X', SDLK_x },
117 { "C", 'c', 'C', SDLK_c },
118 { "V", 'v', 'V', SDLK_v },
119 { "B", 'b', 'B', SDLK_b },
120 { "N", 'n', 'N', SDLK_n },
121 { "M", 'm', 'M', SDLK_m },
122 //edited 06/08/99 Matt Mueller - set to correct syms
123 { ",", ',', '<', SDLK_COMMA },
124 { ".", '.', '>', SDLK_PERIOD },
125 { "/", '/', '?', SDLK_SLASH },
127 { "RSHFT", 255, 255, SDLK_RSHIFT },
128 { "PAD*", '*', 255, SDLK_KP_MULTIPLY },
129 { "LALT", 255, 255, SDLK_LALT },
130 { "SPC", ' ', ' ', SDLK_SPACE },
131 { "CPSLK", 255, 255, SDLK_CAPSLOCK },
132 { "F1", 255, 255, SDLK_F1 },
133 { "F2", 255, 255, SDLK_F2 },
134 { "F3", 255, 255, SDLK_F3 },
135 { "F4", 255, 255, SDLK_F4 },
136 { "F5", 255, 255, SDLK_F5 },
137 { "F6", 255, 255, SDLK_F6 },
138 { "F7", 255, 255, SDLK_F7 },
139 { "F8", 255, 255, SDLK_F8 },
140 { "F9", 255, 255, SDLK_F9 },
141 { "F10", 255, 255, SDLK_F10 },
142 { "NMLCK", 255, 255, SDLK_NUMLOCK },
143 { "SCLK", 255, 255, SDLK_SCROLLOCK },
144 { "PAD7", 255, 255, SDLK_KP7 },
145 { "PAD8", 255, 255, SDLK_KP8 },
146 { "PAD9", 255, 255, SDLK_KP9 },
147 { "PAD-", 255, 255, SDLK_KP_MINUS },
148 { "PAD4", 255, 255, SDLK_KP4 },
149 { "PAD5", 255, 255, SDLK_KP5 },
150 { "PAD6", 255, 255, SDLK_KP6 },
151 { "PAD+", 255, 255, SDLK_KP_PLUS },
152 { "PAD1", 255, 255, SDLK_KP1 },
153 { "PAD2", 255, 255, SDLK_KP2 },
154 { "PAD3", 255, 255, SDLK_KP3 },
155 { "PAD0", 255, 255, SDLK_KP0 },
156 { "PAD.", 255, 255, SDLK_KP_PERIOD },
157 { "", 255, 255, -1 },
158 { "", 255, 255, -1 },
159 { "", 255, 255, -1 },
160 { "F11", 255, 255, SDLK_F11 },
161 { "F12", 255, 255, SDLK_F12 },
162 { "", 255, 255, -1 },
163 { "", 255, 255, -1 },
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 //edited 06/08/99 Matt Mueller - add pause ability
171 { "PAUSE", 255, 255, SDLK_PAUSE },
173 { "", 255, 255, -1 },
174 { "", 255, 255, -1 },
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 //edited 06/08/99 Matt Mueller - set to correct key_text
232 { "PAD\x83",255, 255, SDLK_KP_ENTER },
234 //edited 06/08/99 Matt Mueller - set to correct sym
235 { "RCTRL", 255, 255, SDLK_RCTRL },
237 { "LCMD", 255, 255, SDLK_LMETA },
238 { "RCMD", 255, 255, SDLK_RMETA },
239 { "", 255, 255, -1 },
240 { "", 255, 255, -1 },
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 { "PAD/", 255, 255, SDLK_KP_DIVIDE },
261 { "", 255, 255, -1 },
262 //edited 06/08/99 Matt Mueller - add printscreen ability
263 { "PRSCR", 255, 255, SDLK_PRINT },
265 { "RALT", 255, 255, SDLK_RALT },
266 { "", 255, 255, -1 },
267 { "", 255, 255, -1 },
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 { "HOME", 255, 255, SDLK_HOME },
281 //edited 06/08/99 Matt Mueller - set to correct key_text
282 { "UP", 255, 255, SDLK_UP },
284 { "PGUP", 255, 255, SDLK_PAGEUP },
285 { "", 255, 255, -1 },
286 //edited 06/08/99 Matt Mueller - set to correct key_text
287 { "LEFT", 255, 255, SDLK_LEFT },
289 { "", 255, 255, -1 },
290 //edited 06/08/99 Matt Mueller - set to correct key_text
291 { "RIGHT", 255, 255, SDLK_RIGHT },
293 { "", 255, 255, -1 },
294 //edited 06/08/99 Matt Mueller - set to correct key_text
295 { "END", 255, 255, SDLK_END },
297 { "DOWN", 255, 255, SDLK_DOWN },
298 { "PGDN", 255, 255, SDLK_PAGEDOWN },
299 { "INS", 255, 255, SDLK_INSERT },
300 { "DEL", 255, 255, SDLK_DELETE },
301 { "", 255, 255, -1 },
302 { "", 255, 255, -1 },
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 },
349 void key_buid_key_text(void)
353 unsigned char key_to_ascii(int keycode )
357 shifted = keycode & KEY_SHIFTED;
361 return key_properties[keycode].shifted_ascii_value;
363 return key_properties[keycode].ascii_value;
367 /* The list of keybindings */
368 static char *key_binding_list[256];
372 /* FIXME: key_text is not really adequate for this */
373 void key_cmd_bind(int argc, char **argv)
375 char buf[CMD_MAX_LENGTH] = "";
376 unsigned char key = 0;
381 con_printf(CON_NORMAL, "key bindings:\n");
382 for (i = 0; i < 256; i++) {
383 if (!key_binding_list[i])
385 con_printf(CON_NORMAL, "%s: %s\n", key_text[i], key_binding_list[i]);
390 for (i = 2; i < argc; i++) {
392 strncat(buf, " ", CMD_MAX_LENGTH);
393 strncat(buf, argv[i], CMD_MAX_LENGTH);
396 for (i = 0; i < 256; i++) {
397 if (!stricmp(argv[1], key_text[i])) {
404 con_printf(CON_CRITICAL, "bind: key %s not found\n", argv[1]);
408 if (key_binding_list[key])
409 d_free(key_binding_list[key]);
410 key_binding_list[key] = d_strdup(buf);
414 static void key_handle_binding(int keycode, int state)
416 if (!key_binding_list[keycode])
419 if (!state && key_binding_list[keycode][0] == '+')
420 cmd_appendf("-%s", &key_binding_list[keycode][1]);
422 cmd_append(key_binding_list[keycode]);
426 void key_handler(SDL_KeyboardEvent *event)
429 int i, keycode, event_key, key_state;
433 event_key = event->keysym.sym;
435 key_state = (event->state == SDL_PRESSED); // !(wInfo & KF_UP);
436 //=====================================================
437 //Here a translation from win keycodes to mac keycodes!
438 //=====================================================
440 for (i = 255; i >= 0; i--) {
443 key = &(key_data.keys[keycode]);
444 if (key_properties[i].sym == event_key) {
446 key_handle_binding(keycode, state);
448 state = key->last_state;
450 if ( key->last_state == state ) {
453 keyd_last_pressed = keycode;
454 keyd_time_when_last_pressed = timer_get_fixed_seconds();
458 keyd_last_pressed = keycode;
459 keyd_pressed[keycode] = 1;
460 key->downcount += state;
462 key->timewentdown = keyd_time_when_last_pressed = timer_get_fixed_seconds();
465 keyd_pressed[keycode] = 0;
466 keyd_last_released = keycode;
467 key->upcount += key->state;
470 key->timehelddown += timer_get_fixed_seconds() - key->timewentdown;
473 if ( (state && !key->last_state) || (state && key->last_state && (key->counter > 30) && (key->counter & 0x01)) ) {
474 if ( keyd_pressed[KEY_LSHIFT] || keyd_pressed[KEY_RSHIFT])
475 keycode |= KEY_SHIFTED;
476 if ( keyd_pressed[KEY_LALT] || keyd_pressed[KEY_RALT])
477 keycode |= KEY_ALTED;
478 if ( keyd_pressed[KEY_LCTRL] || keyd_pressed[KEY_RCTRL])
479 keycode |= KEY_CTRLED;
480 if ( keyd_pressed[KEY_DELETE] )
481 keycode |= KEY_DEBUGGED;
482 if ( keyd_pressed[KEY_LMETA] || keyd_pressed[KEY_RMETA])
483 keycode |= KEY_METAED;
485 temp = key_data.keytail+1;
486 if ( temp >= KEY_BUFFER_SIZE ) temp=0;
487 if (temp!=key_data.keyhead) {
488 key_data.keybuffer[key_data.keytail] = keycode;
489 key_data.time_pressed[key_data.keytail] = keyd_time_when_last_pressed;
490 key_data.keytail = temp;
493 key->last_state = state;
501 for (i = 0; i < 256; i++)
502 if (key_binding_list[i])
503 d_free(key_binding_list[i]);
512 if (Installed) return;
516 keyd_time_when_last_pressed = timer_get_fixed_seconds();
517 keyd_buffer_type = 1;
521 key_text[i] = key_properties[i].key_text;
523 cmd_addcommand("bind", key_cmd_bind);
525 // Clear the keyboard array
538 key_data.keyhead = key_data.keytail = 0;
540 //Clear the keyboard buffer
541 for (i=0; i<KEY_BUFFER_SIZE; i++ ) {
542 key_data.keybuffer[i] = 0;
543 key_data.time_pressed[i] = 0;
546 //use gettimeofday here:
547 curtime = timer_get_fixed_seconds();
549 for (i=0; i<256; i++ ) {
551 key_data.keys[i].state = 1;
552 key_data.keys[i].last_state = 0;
553 key_data.keys[i].timewentdown = curtime;
554 key_data.keys[i].downcount=0;
555 key_data.keys[i].upcount=0;
556 key_data.keys[i].timehelddown = 0;
557 key_data.keys[i].counter = 0;
564 if ( n >= KEY_BUFFER_SIZE ) n=0;
570 int is_one_waiting = 0;
572 if (key_data.keytail!=key_data.keyhead)
574 return is_one_waiting;
583 if (key_data.keytail!=key_data.keyhead) {
584 key = key_data.keybuffer[key_data.keyhead];
585 key_data.keyhead = add_one(key_data.keyhead);
587 //added 9/3/98 by Matt Mueller to free cpu time instead of hogging during menus and such
589 //end addition - Matt Mueller
594 int key_inkey_time(fix * time)
601 if (key_data.keytail!=key_data.keyhead) {
602 key = key_data.keybuffer[key_data.keyhead];
603 *time = key_data.time_pressed[key_data.keyhead];
604 key_data.keyhead = add_one(key_data.keyhead);
613 if (key_data.keytail!=key_data.keyhead)
614 key = key_data.keybuffer[key_data.keyhead];
627 while (!key_checkch())
632 unsigned int key_get_shift_status()
634 unsigned int shift_status = 0;
636 if ( keyd_pressed[KEY_LSHIFT] || keyd_pressed[KEY_RSHIFT] )
637 shift_status |= KEY_SHIFTED;
639 if ( keyd_pressed[KEY_LALT] || keyd_pressed[KEY_RALT] )
640 shift_status |= KEY_ALTED;
642 if ( keyd_pressed[KEY_LCTRL] || keyd_pressed[KEY_RCTRL] )
643 shift_status |= KEY_CTRLED;
645 if ( keyd_pressed[KEY_LMETA] || keyd_pressed[KEY_RMETA] )
646 shift_status |= KEY_METAED;
649 if (keyd_pressed[KEY_DELETE])
650 shift_status |=KEY_DEBUGGED;
656 // Returns the number of seconds this key has been down since last call.
657 fix key_down_time(int scancode)
662 if ((scancode<0)|| (scancode>255)) return 0;
664 if (!keyd_pressed[scancode]) {
665 time_down = key_data.keys[scancode].timehelddown;
666 key_data.keys[scancode].timehelddown = 0;
668 time = timer_get_fixed_seconds();
669 time_down = time - key_data.keys[scancode].timewentdown;
670 key_data.keys[scancode].timewentdown = time;
676 unsigned int key_down_count(int scancode)
680 if ((scancode<0)|| (scancode>255)) return 0;
682 n = key_data.keys[scancode].downcount;
683 key_data.keys[scancode].downcount = 0;
688 unsigned int key_up_count(int scancode)
692 if ((scancode<0)|| (scancode>255)) return 0;
694 n = key_data.keys[scancode].upcount;
695 key_data.keys[scancode].upcount = 0;