filename | src/display.c |
changeset | 736:a02d1475ccfd |
prev | 700:4650d0c7f6f9 |
next | 770:429ff505c450 |
author | nkeynes |
date | Sat Jul 19 02:34:11 2008 +0000 (15 years ago) |
permissions | -rw-r--r-- |
last change | Fix make clean target And therefore (finally) fix the distcheck target overall |
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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 struct mouse_entry *mousehooks = NULL;
98 static gboolean display_focused = TRUE;
99 static GList *input_drivers= NULL;
100 static display_keysym_callback_t display_keysym_hook = NULL;
101 void *display_keysym_hook_data;
103 gboolean input_register_device( input_driver_t driver, uint16_t max_keycode )
104 {
105 GList *ptr;
106 for( ptr = input_drivers; ptr != NULL; ptr = g_list_next(ptr) ) {
107 input_driver_entry_t entry = (input_driver_entry_t)ptr->data;
108 if( strcasecmp( entry->driver->id, driver->id ) == 0 ) {
109 return FALSE;
110 }
111 }
113 input_driver_entry_t entry = g_malloc0( sizeof(struct input_driver_entry) + (sizeof(keymap_entry_t) * max_keycode) );
114 entry->driver = driver;
115 entry->entry_count = max_keycode;
116 input_drivers = g_list_append( input_drivers, entry );
117 return TRUE;
118 }
120 gboolean input_has_device( const gchar *id )
121 {
122 GList *ptr;
123 for( ptr = input_drivers; ptr != NULL; ptr = g_list_next(ptr) ) {
124 input_driver_entry_t entry = (input_driver_entry_t)ptr->data;
125 if( strcasecmp(entry->driver->id, id) == 0 ) {
126 return TRUE;
127 }
128 }
129 return FALSE;
130 }
133 void input_unregister_device( input_driver_t driver )
134 {
135 GList *ptr;
136 for( ptr = input_drivers; ptr != NULL; ptr = g_list_next(ptr) ) {
137 input_driver_entry_t entry = (input_driver_entry_t)ptr->data;
138 if( entry->driver == driver ) {
139 if( driver->destroy != NULL ) {
140 driver->destroy(driver);
141 }
142 input_drivers = g_list_remove(input_drivers, (gpointer)entry);
143 g_free( entry );
144 return;
145 }
146 }
147 }
149 /**
150 * Resolve the keysym and return a pointer to the keymap entry pointer
151 * @return keymap pointer or NULL if the key was unresolved
152 */
153 static struct keymap_entry **input_entry_from_keysym( const gchar *keysym )
154 {
155 if( keysym == NULL || keysym[0] == 0 ) {
156 return NULL;
157 }
158 char **strv = g_strsplit(keysym,":",2);
159 if( strv[1] == NULL ) {
160 /* root device */
161 if( display_driver == NULL || display_driver->resolve_keysym == NULL) {
162 // Root device has no input handling
163 g_strfreev(strv);
164 return NULL;
165 }
166 uint16_t keycode = display_driver->resolve_keysym(g_strstrip(strv[0]));
167 g_strfreev(strv);
168 if( keycode == 0 ) {
169 return NULL;
170 }
171 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 static gchar *input_keysym_for_keycode( 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_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_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_register_mouse_hook( gboolean relative, input_mouse_callback_t callback,
322 void *data )
323 {
324 mouse_entry_t ent = malloc( sizeof( struct mouse_entry ) );
325 assert( ent != NULL );
326 ent->callback = callback;
327 ent->data = data;
328 ent->next = mousehooks;
329 mousehooks = ent;
330 return TRUE;
331 }
333 void input_unregister_mouse_hook( input_mouse_callback_t callback, void *data )
334 {
335 mouse_entry_t ent = mousehooks;
336 if( ent != NULL ) {
337 if( ent->callback == callback && ent->data == data ) {
338 mousehooks = mousehooks->next;
339 free(ent);
340 return;
341 }
342 while( ent->next != NULL ) {
343 if( ent->next->callback == callback && ent->next->data == data ) {
344 mouse_entry_t next = ent->next;
345 ent->next = next->next;
346 free(next);
347 return;
348 }
349 ent = ent->next;
350 }
351 }
352 }
354 void input_event_mouse( uint32_t buttons, int32_t x, int32_t y )
355 {
356 mouse_entry_t ent = mousehooks;
357 while( ent != NULL ) {
358 ent->callback(ent->data, buttons, x, y);
359 ent = ent->next;
360 }
361 }
363 gboolean input_is_key_valid( const gchar *keysym )
364 {
365 keymap_entry_t *ptr = input_entry_from_keysym(keysym);
366 return ptr != NULL;
367 }
369 gboolean input_is_key_registered( const gchar *keysym )
370 {
371 keymap_entry_t *ptr = input_entry_from_keysym(keysym);
372 return ptr != NULL && *ptr != NULL;
373 }
375 void input_event_keydown( input_driver_t driver, uint16_t keycode, uint32_t pressure )
376 {
377 if( display_focused ) {
378 keymap_entry_t *entryp = input_entry_from_keycode(driver,keycode);
379 if( entryp != NULL && *entryp != NULL ) {
380 (*entryp)->callback( (*entryp)->data, (*entryp)->value, pressure, TRUE );
381 }
382 keymap_entry_t key = keyhooks;
383 while( key != NULL ) {
384 key->callback( key->data, keycode, pressure, TRUE );
385 key = key->next;
386 }
387 }
388 if( display_keysym_hook != NULL ) {
389 gchar *sym = input_keysym_for_keycode( driver, keycode );
390 if( sym != NULL ) {
391 display_keysym_hook(display_keysym_hook_data, sym);
392 g_free(sym);
393 }
394 }
395 }
397 void input_event_keyup( input_driver_t driver, uint16_t keycode, uint32_t pressure )
398 {
399 if( display_focused ) {
400 keymap_entry_t *entryp = input_entry_from_keycode(driver,keycode);
401 if( entryp != NULL && *entryp != NULL ) {
402 (*entryp)->callback( (*entryp)->data, (*entryp)->value, pressure, FALSE );
403 }
405 keymap_entry_t key = keyhooks;
406 while( key != NULL ) {
407 key->callback( key->data, keycode, pressure, FALSE );
408 key = key->next;
409 }
410 }
411 }
413 uint16_t input_keycode_to_dckeysym( uint16_t keycode )
414 {
415 return display_driver->convert_to_dckeysym(keycode);
416 }
418 void print_display_drivers( FILE *out )
419 {
420 int i;
421 fprintf( out, "Available video drivers:\n" );
422 for( i=0; display_driver_list[i] != NULL; i++ ) {
423 fprintf( out, " %-8s %s\n", display_driver_list[i]->name,
424 gettext(display_driver_list[i]->description) );
425 }
426 }
428 display_driver_t get_display_driver_by_name( const char *name )
429 {
430 int i;
431 if( name == NULL ) {
432 return display_driver_list[0];
433 }
434 for( i=0; display_driver_list[i] != NULL; i++ ) {
435 if( strcasecmp( display_driver_list[i]->name, name ) == 0 ) {
436 return display_driver_list[i];
437 }
438 }
440 return NULL;
441 }
444 gboolean display_set_driver( display_driver_t driver )
445 {
446 gboolean rv = TRUE;
447 if( display_driver != NULL && display_driver->shutdown_driver != NULL )
448 display_driver->shutdown_driver();
450 display_driver = driver;
451 if( driver->init_driver != NULL )
452 rv = driver->init_driver();
453 if( !rv ) {
454 display_driver = NULL;
455 }
456 return rv;
457 }
459 void display_set_focused( gboolean has_focus )
460 {
461 display_focused = has_focus;
462 }
464 void input_set_keysym_hook( display_keysym_callback_t hook, void *data )
465 {
466 display_keysym_hook = hook;
467 display_keysym_hook_data = data;
468 }
.