2 * $Id: display.c,v 1.1 2006-05-15 08:28:48 nkeynes Exp $
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).
8 * Copyright (c) 2005 Nathan Keynes.
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.
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.
26 typedef struct keymap_entry {
28 input_key_callback_t callback;
34 * FIXME: make this more memory efficient
36 struct keymap_entry *keymap[65536];
39 static struct keymap_entry *input_create_key( uint16_t keycode )
41 struct keymap_entry *key = keymap[ keycode ];
43 key = malloc( sizeof( struct keymap_entry ) );
44 assert( key != NULL );
45 keymap[ keycode ] = key;
46 key->keycode = keycode;
51 static void input_delete_key( uint16_t keycode )
53 struct keymap_entry *key = keymap[keycode];
56 keymap[keycode] = NULL;
60 static struct keymap_entry *input_get_key( uint16_t keycode )
62 return keymap[ keycode ];
65 gboolean input_register_key( const gchar *keysym, input_key_callback_t callback,
66 void *data, uint32_t value )
68 if( display_driver == NULL || keysym == NULL )
69 return FALSE; /* No display driver */
70 uint16_t keycode = display_driver->resolve_keysym(keysym);
72 return FALSE; /* Invalid keysym */
74 struct keymap_entry *key = input_create_key( keycode );
75 key->callback = callback;
78 INFO( "Registered key '%s' (%4x)", keysym, keycode );
82 void input_unregister_key( const gchar *keysym )
84 if( display_driver == NULL || keysym == NULL )
86 uint16_t keycode = display_driver->resolve_keysym(keysym);
89 input_delete_key( keycode );
93 gboolean input_is_key_valid( const gchar *keysym )
95 if( display_driver == NULL )
96 return FALSE; /* No display driver */
97 return display_driver->resolve_keysym(keysym) != 0;
100 gboolean input_is_key_registered( const gchar *keysym )
102 if( display_driver == NULL )
104 uint16_t keycode = display_driver->resolve_keysym(keysym);
107 return input_get_key( keycode ) != NULL;
110 void input_event_keydown( uint16_t keycode )
112 struct keymap_entry *key = input_get_key(keycode);
114 key->callback( key->data, key->value, TRUE );
118 void input_event_keyup( uint16_t keycode )
120 struct keymap_entry *key = input_get_key(keycode);
122 key->callback( key->data, key->value, FALSE );
128 void display_set_driver( display_driver_t driver )
130 if( display_driver != NULL && display_driver->shutdown_driver != NULL )
131 display_driver->shutdown_driver();
133 display_driver = driver;
134 if( driver->init_driver != NULL )
135 driver->init_driver();
136 driver->set_display_format( 640, 480, COLFMT_ARGB8888 );
137 driver->set_render_format( 640, 480, COLFMT_ARGB8888, FALSE );
.