lxdream 0.9.1| filename | src/display.c |
| changeset | 849:bbe26d798fc2 |
| prev | 839:51f1c4195790 |
| next | 1010:a506a2f66180 |
| author | nkeynes |
| date | Mon Oct 06 01:05:12 2008 +0000 (15 years ago) |
| permissions | -rw-r--r-- |
| last change | Move bundle/system paths into paths.c, install lxdreamrc into the bundle (Fix OSX bundle missing default configuration) |
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1 /**
2 * $Id$
3 *
4 * Generic support for keyboard and other input sources. The active display
5 * driver is expected to deliver events here, where they're translated and
6 * passed to the appropriate dreamcast controllers (if any).
7 *
8 * Copyright (c) 2005 Nathan Keynes.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 */
21 #include <stdint.h>
22 #include <assert.h>
23 #include "dream.h"
24 #include "display.h"
25 #include "pvr2/pvr2.h"
27 display_driver_t display_driver_list[] = {
28 #ifdef HAVE_GTK
29 &display_gtk_driver,
30 #else
31 #ifdef HAVE_COCOA
32 &display_osx_driver,
33 #endif
34 #endif
35 &display_null_driver,
36 NULL };
38 /* Some explanation:
39 * The system has at least one "root" device representing the main display
40 * (which may be the null display). This device is part of the display_driver
41 * and generates events with no input_driver. The root device has no id
42 * as such (for the purposes of event names)
43 *
44 * The system may also have one or more auxilliary devices which each have
45 * an input_driver and an id (eg "JS0"). So the keysym "Return" is (de)coded by
46 * the root device, and the keysym "JS0: Button0" is (de)coded by the JS0 input
47 * device as "Button0".
48 *
49 * For the moment, mice are handled specially, as they behave a little
50 * differently from other devices (although this will probably change in the
51 * future.
52 */
55 typedef struct keymap_entry {
56 input_key_callback_t callback;
57 void *data;
58 uint32_t value;
59 struct keymap_entry *next; // allow chaining
60 } *keymap_entry_t;
62 typedef struct mouse_entry {
63 gboolean relative;
64 input_mouse_callback_t callback;
65 void *data;
66 struct mouse_entry *next;
67 } *mouse_entry_t;
69 typedef struct input_driver_entry {
70 input_driver_t driver;
71 uint16_t entry_count;
72 struct keymap_entry *keymap[0];
73 } *input_driver_entry_t;
75 /**
76 * Colour format information
77 */
78 struct colour_format colour_formats[] = {
79 { GL_UNSIGNED_SHORT_1_5_5_5_REV, GL_BGRA, GL_RGB5_A1, 2 },
80 { GL_UNSIGNED_SHORT_5_6_5, GL_RGB, GL_RGB5, 2 },
81 { GL_UNSIGNED_SHORT_4_4_4_4_REV, GL_BGRA, GL_RGBA4, 2 },
82 { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 }, /* YUV decoded to ARGB8888 */
83 { GL_UNSIGNED_BYTE, GL_BGR, GL_RGB, 3 },
84 { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 },
85 { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 }, /* Index4 decoded */
86 { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 }, /* Index8 decoded */
87 { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 },
88 { GL_UNSIGNED_BYTE, GL_RGB, GL_RGB, 3 },
90 };
92 /**
93 * FIXME: make this more memory efficient
94 */
95 static struct keymap_entry *root_keymap[65535];
96 static struct keymap_entry *keyhooks = NULL;
97 static gboolean display_focused = TRUE;
98 static GList *input_drivers= NULL;
99 static display_keysym_callback_t display_keysym_hook = NULL;
100 void *display_keysym_hook_data;
102 gboolean input_register_device( input_driver_t driver, uint16_t max_keycode )
103 {
104 GList *ptr;
105 for( ptr = input_drivers; ptr != NULL; ptr = g_list_next(ptr) ) {
106 input_driver_entry_t entry = (input_driver_entry_t)ptr->data;
107 if( strcasecmp( entry->driver->id, driver->id ) == 0 ) {
108 return FALSE;
109 }
110 }
112 input_driver_entry_t entry = g_malloc0( sizeof(struct input_driver_entry) + (sizeof(keymap_entry_t) * max_keycode) );
113 entry->driver = driver;
114 entry->entry_count = max_keycode;
115 input_drivers = g_list_append( input_drivers, entry );
116 return TRUE;
117 }
119 gboolean input_has_device( const gchar *id )
120 {
121 GList *ptr;
122 for( ptr = input_drivers; ptr != NULL; ptr = g_list_next(ptr) ) {
123 input_driver_entry_t entry = (input_driver_entry_t)ptr->data;
124 if( strcasecmp(entry->driver->id, id) == 0 ) {
125 return TRUE;
126 }
127 }
128 return FALSE;
129 }
132 void input_unregister_device( input_driver_t driver )
133 {
134 GList *ptr;
135 for( ptr = input_drivers; ptr != NULL; ptr = g_list_next(ptr) ) {
136 input_driver_entry_t entry = (input_driver_entry_t)ptr->data;
137 if( entry->driver == driver ) {
138 if( driver->destroy != NULL ) {
139 driver->destroy(driver);
140 }
141 input_drivers = g_list_remove(input_drivers, (gpointer)entry);
142 g_free( entry );
143 return;
144 }
145 }
146 }
148 /**
149 * Resolve the keysym and return a pointer to the keymap entry pointer
150 * @return keymap pointer or NULL if the key was unresolved
151 */
152 static struct keymap_entry **input_entry_from_keysym( const gchar *keysym )
153 {
154 if( keysym == NULL || keysym[0] == 0 ) {
155 return NULL;
156 }
157 char **strv = g_strsplit(keysym,":",2);
158 if( strv[1] == NULL ) {
159 /* root device */
160 if( display_driver == NULL || display_driver->resolve_keysym == NULL) {
161 // Root device has no input handling
162 g_strfreev(strv);
163 return NULL;
164 }
165 uint16_t keycode = display_driver->resolve_keysym(g_strstrip(strv[0]));
166 g_strfreev(strv);
167 if( keycode == 0 ) {
168 return NULL;
169 }
170 return &root_keymap[keycode-1];
172 } else {
173 char *id = g_strstrip(strv[0]);
174 GList *ptr;
175 for( ptr = input_drivers; ptr != NULL; ptr = g_list_next(ptr) ) {
176 input_driver_entry_t entry = (input_driver_entry_t)ptr->data;
177 if( strcasecmp( entry->driver->id, id ) == 0 ) {
178 /* we have ze device */
179 if( entry->driver->resolve_keysym == NULL ) {
180 g_strfreev(strv);
181 return NULL;
182 }
183 uint16_t keycode = entry->driver->resolve_keysym(entry->driver, g_strstrip(strv[1]));
184 g_strfreev(strv);
185 if( keycode == 0 || keycode > entry->entry_count ) {
186 return NULL;
187 }
188 return &entry->keymap[keycode-1];
189 }
190 }
191 g_strfreev(strv);
192 return NULL; // device not found
193 }
194 }
196 static struct keymap_entry **input_entry_from_keycode( input_driver_t driver, uint16_t keycode )
197 {
198 GList *ptr;
200 if( keycode == 0 ) {
201 return NULL;
202 }
204 if( driver == NULL ) {
205 return &root_keymap[keycode-1];
206 }
208 for( ptr = input_drivers; ptr != NULL; ptr = g_list_next(ptr) ) {
209 input_driver_entry_t entry = (input_driver_entry_t)ptr->data;
210 if( entry->driver == driver ) {
211 if( keycode > entry->entry_count ) {
212 return NULL;
213 } else {
214 return &entry->keymap[keycode-1];
215 }
216 }
217 }
218 return NULL;
219 }
221 gchar *input_keycode_to_keysym( input_driver_t driver, uint16_t keycode )
222 {
223 if( keycode == 0 ) {
224 return NULL;
225 }
226 if( driver == NULL ) {
227 if( display_driver != NULL && display_driver->get_keysym_for_keycode != NULL ) {
228 return display_driver->get_keysym_for_keycode(keycode);
229 }
230 } else if( driver->get_keysym_for_keycode ) {
231 gchar *sym = driver->get_keysym_for_keycode(driver,keycode);
232 if( sym != NULL ) {
233 gchar *result = g_strdup_printf( "%s: %s", driver->id, sym );
234 g_free(sym);
235 return result;
236 }
237 }
238 return NULL;
239 }
242 gboolean input_register_key( const gchar *keysym, input_key_callback_t callback,
243 void *data, uint32_t value )
244 {
245 if( keysym == NULL ) {
246 return FALSE;
247 }
248 int keys = 0;
249 gchar **strv = g_strsplit(keysym, ",", 16);
250 gchar **s = strv;
251 while( *s != NULL ) {
252 keymap_entry_t *entryp = input_entry_from_keysym(*s);
253 if( entryp != NULL ) {
254 *entryp = g_malloc0(sizeof(struct keymap_entry));
255 (*entryp)->callback = callback;
256 (*entryp)->data = data;
257 (*entryp)->value = value;
258 keys++;
259 }
260 s++;
261 }
262 g_strfreev(strv);
263 return keys != 0;
264 }
266 void input_unregister_key( const gchar *keysym, input_key_callback_t callback,
267 void *data, uint32_t value )
268 {
269 if( keysym == NULL ) {
270 return;
271 }
273 gchar **strv = g_strsplit(keysym, ",", 16);
274 gchar **s = strv;
275 while( *s != NULL ) {
276 keymap_entry_t *entryp = input_entry_from_keysym(*s);
277 if( entryp != NULL && *entryp != NULL && (*entryp)->callback == callback &&
278 (*entryp)->data == data && (*entryp)->value == value ) {
279 g_free( *entryp );
280 *entryp = NULL;
281 }
282 s++;
283 }
284 g_strfreev(strv);
285 }
287 gboolean input_register_keyboard_hook( input_key_callback_t callback,
288 void *data )
289 {
290 keymap_entry_t key = malloc( sizeof( struct keymap_entry ) );
291 assert( key != NULL );
292 key->callback = callback;
293 key->data = data;
294 key->next = keyhooks;
295 keyhooks = key;
296 return TRUE;
297 }
299 void input_unregister_keyboard_hook( input_key_callback_t callback,
300 void *data )
301 {
302 keymap_entry_t key = keyhooks;
303 if( key != NULL ) {
304 if( key->callback == callback && key->data == data ) {
305 keyhooks = keyhooks->next;
306 free(key);
307 return;
308 }
309 while( key->next != NULL ) {
310 if( key->next->callback == callback && key->next->data == data ) {
311 keymap_entry_t next = key->next;
312 key->next = next->next;
313 free(next);
314 return;
315 }
316 key = key->next;
317 }
318 }
319 }
321 gboolean input_is_key_valid( const gchar *keysym )
322 {
323 keymap_entry_t *ptr = input_entry_from_keysym(keysym);
324 return ptr != NULL;
325 }
327 gboolean input_is_key_registered( const gchar *keysym )
328 {
329 keymap_entry_t *ptr = input_entry_from_keysym(keysym);
330 return ptr != NULL && *ptr != NULL;
331 }
333 void input_event_keydown( input_driver_t driver, uint16_t keycode, uint32_t pressure )
334 {
335 if( display_focused ) {
336 keymap_entry_t *entryp = input_entry_from_keycode(driver,keycode);
337 if( entryp != NULL && *entryp != NULL ) {
338 (*entryp)->callback( (*entryp)->data, (*entryp)->value, pressure, TRUE );
339 }
340 if( driver == NULL ) {
341 keymap_entry_t key = keyhooks;
342 while( key != NULL ) {
343 key->callback( key->data, keycode, pressure, TRUE );
344 key = key->next;
345 }
346 }
347 }
348 if( display_keysym_hook != NULL ) {
349 gchar *sym = input_keycode_to_keysym( driver, keycode );
350 if( sym != NULL ) {
351 display_keysym_hook(display_keysym_hook_data, sym);
352 g_free(sym);
353 }
354 }
355 }
357 void input_event_keyup( input_driver_t driver, uint16_t keycode, uint32_t pressure )
358 {
359 if( display_focused ) {
360 keymap_entry_t *entryp = input_entry_from_keycode(driver,keycode);
361 if( entryp != NULL && *entryp != NULL ) {
362 (*entryp)->callback( (*entryp)->data, (*entryp)->value, pressure, FALSE );
363 }
365 if( driver == NULL ) {
366 keymap_entry_t key = keyhooks;
367 while( key != NULL ) {
368 key->callback( key->data, keycode, pressure, FALSE );
369 key = key->next;
370 }
371 }
372 }
373 }
375 uint16_t input_keycode_to_dckeysym( uint16_t keycode )
376 {
377 return display_driver->convert_to_dckeysym(keycode);
378 }
380 void input_set_keysym_hook( display_keysym_callback_t hook, void *data )
381 {
382 display_keysym_hook = hook;
383 display_keysym_hook_data = data;
384 }
386 /***************** System mouse driver ****************/
388 static struct keymap_entry *mouse_keymap[MAX_MOUSE_BUTTONS];
389 static struct mouse_entry *mousehooks = NULL;
390 static uint32_t mouse_x = -1, mouse_y = -1, mouse_buttons = 0;
392 uint16_t mouse_resolve_keysym( struct input_driver *driver, const gchar *keysym )
393 {
394 if( strncasecmp( keysym, "Button", 6 ) == 0 ){
395 unsigned long button = strtoul( keysym+6, NULL, 10 );
396 if( button > MAX_MOUSE_BUTTONS ) {
397 return 0;
398 }
399 return (uint16_t)button;
400 }
401 return 0;
402 }
404 gchar *mouse_get_keysym( struct input_driver *driver, uint16_t keycode )
405 {
406 return g_strdup_printf( "Button%d", (keycode) );
407 }
409 struct input_driver system_mouse_driver = { "Mouse", mouse_resolve_keysym, NULL, mouse_get_keysym, NULL };
412 gboolean input_register_mouse_hook( gboolean relative, input_mouse_callback_t callback,
413 void *data )
414 {
415 mouse_entry_t ent = malloc( sizeof( struct mouse_entry ) );
416 assert( ent != NULL );
417 ent->callback = callback;
418 ent->data = data;
419 ent->next = mousehooks;
420 mousehooks = ent;
421 return TRUE;
422 }
424 void input_unregister_mouse_hook( input_mouse_callback_t callback, void *data )
425 {
426 mouse_entry_t ent = mousehooks;
427 if( ent != NULL ) {
428 if( ent->callback == callback && ent->data == data ) {
429 mousehooks = mousehooks->next;
430 free(ent);
431 return;
432 }
433 while( ent->next != NULL ) {
434 if( ent->next->callback == callback && ent->next->data == data ) {
435 mouse_entry_t next = ent->next;
436 ent->next = next->next;
437 free(next);
438 return;
439 }
440 ent = ent->next;
441 }
442 }
443 }
445 void input_event_run_mouse_hooks( uint32_t buttons, int32_t x, int32_t y, gboolean absolute )
446 {
447 mouse_entry_t ent = mousehooks;
448 while( ent != NULL ) {
449 ent->callback(ent->data, buttons, x, y, absolute);
450 ent = ent->next;
451 }
452 }
454 void input_event_mousedown( uint16_t button, int32_t x, int32_t y, gboolean absolute )
455 {
456 if( absolute ) {
457 mouse_x = x;
458 mouse_y = y;
459 }
460 mouse_buttons |= (1<<button);
461 input_event_keydown( &system_mouse_driver, button+1, 1 );
462 input_event_run_mouse_hooks( mouse_buttons, x, y, absolute );
463 }
465 void input_event_mouseup( uint16_t button, int32_t x, int32_t y, gboolean absolute )
466 {
467 if( absolute ) {
468 mouse_x = x;
469 mouse_y = y;
470 }
471 mouse_buttons &= ~(1<<button);
472 input_event_keyup( &system_mouse_driver, button+1, 1 );
473 input_event_run_mouse_hooks( mouse_buttons, x, y, absolute );
474 }
476 void input_event_mousemove( int32_t x, int32_t y, gboolean absolute )
477 {
478 if( absolute ) {
479 mouse_x = x;
480 mouse_y = y;
481 }
482 input_event_run_mouse_hooks( mouse_buttons, x, y, absolute );
483 }
485 /************************ Main display driver *************************/
487 void print_display_drivers( FILE *out )
488 {
489 int i;
490 fprintf( out, "Available video drivers:\n" );
491 for( i=0; display_driver_list[i] != NULL; i++ ) {
492 fprintf( out, " %-8s %s\n", display_driver_list[i]->name,
493 gettext(display_driver_list[i]->description) );
494 }
495 }
497 display_driver_t get_display_driver_by_name( const char *name )
498 {
499 int i;
500 if( name == NULL ) {
501 return display_driver_list[0];
502 }
503 for( i=0; display_driver_list[i] != NULL; i++ ) {
504 if( strcasecmp( display_driver_list[i]->name, name ) == 0 ) {
505 return display_driver_list[i];
506 }
507 }
509 return NULL;
510 }
513 gboolean display_set_driver( display_driver_t driver )
514 {
515 gboolean rv = TRUE;
516 if( display_driver != NULL && display_driver->shutdown_driver != NULL )
517 display_driver->shutdown_driver();
519 display_driver = driver;
520 if( driver->init_driver != NULL )
521 rv = driver->init_driver();
522 if( rv ) {
523 input_register_device(&system_mouse_driver, MAX_MOUSE_BUTTONS);
524 } else {
525 display_driver = NULL;
526 }
527 return rv;
528 }
530 void display_set_focused( gboolean has_focus )
531 {
532 display_focused = has_focus;
533 }
.