2 * $Id: display.c,v 1.8 2007-09-08 04:05:35 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 * Colour format information
36 struct colour_format colour_formats[] = {
37 { GL_UNSIGNED_SHORT_1_5_5_5_REV, GL_BGRA, GL_RGB5_A1, 2 },
38 { GL_UNSIGNED_SHORT_5_6_5, GL_RGB, GL_RGB5, 2 },
39 { GL_UNSIGNED_SHORT_4_4_4_4_REV, GL_BGRA, GL_RGBA4, 2 },
40 { GL_UNSIGNED_INT_8_8_8_8_REV, GL_BGRA, GL_RGBA8, 4 }, /* YUV decoded to ARGB8888 */
41 { GL_UNSIGNED_BYTE, GL_BGR, GL_RGB, 3 },
42 { GL_UNSIGNED_INT_8_8_8_8_REV, GL_BGRA, GL_RGBA8, 4 },
47 * FIXME: make this more memory efficient
49 struct keymap_entry *keymap[65536];
52 static struct keymap_entry *input_create_key( uint16_t keycode )
54 struct keymap_entry *key = keymap[ keycode ];
56 key = malloc( sizeof( struct keymap_entry ) );
57 assert( key != NULL );
58 keymap[ keycode ] = key;
59 key->keycode = keycode;
64 static void input_delete_key( uint16_t keycode )
66 struct keymap_entry *key = keymap[keycode];
69 keymap[keycode] = NULL;
73 static struct keymap_entry *input_get_key( uint16_t keycode )
75 return keymap[ keycode ];
78 gboolean input_register_key( const gchar *keysym, input_key_callback_t callback,
79 void *data, uint32_t value )
82 if( display_driver == NULL || keysym == NULL || display_driver->resolve_keysym == NULL )
83 return FALSE; /* No display driver */
84 gchar **strv = g_strsplit(keysym, ",", 16);
87 uint16_t keycode = display_driver->resolve_keysym(g_strstrip(*s));
89 return FALSE; /* Invalid keysym */
91 struct keymap_entry *key = input_create_key( keycode );
92 key->callback = callback;
101 void input_unregister_key( const gchar *keysym )
103 if( display_driver == NULL || keysym == NULL )
105 uint16_t keycode = display_driver->resolve_keysym(keysym);
108 input_delete_key( keycode );
112 gboolean input_is_key_valid( const gchar *keysym )
114 if( display_driver == NULL )
115 return FALSE; /* No display driver */
116 return display_driver->resolve_keysym(keysym) != 0;
119 gboolean input_is_key_registered( const gchar *keysym )
121 if( display_driver == NULL )
123 uint16_t keycode = display_driver->resolve_keysym(keysym);
126 return input_get_key( keycode ) != NULL;
129 void input_event_keydown( uint16_t keycode )
131 struct keymap_entry *key = input_get_key(keycode);
133 key->callback( key->data, key->value, TRUE );
137 void input_event_keyup( uint16_t keycode )
139 struct keymap_entry *key = input_get_key(keycode);
141 key->callback( key->data, key->value, FALSE );
147 gboolean display_set_driver( display_driver_t driver )
150 if( display_driver != NULL && display_driver->shutdown_driver != NULL )
151 display_driver->shutdown_driver();
153 display_driver = driver;
154 if( driver->init_driver != NULL )
155 rv = driver->init_driver();
.