lxdream 0.9.1| filename | src/display.c |
| changeset | 370:3131ba1440fc |
| prev | 356:b281cad966b7 |
| next | 425:17f019f4ed8d |
| author | nkeynes |
| date | Sat Sep 08 04:05:35 2007 +0000 (16 years ago) |
| permissions | -rw-r--r-- |
| last change | Handle video driver init failure cleanly (fallback to headless) Hookup shutdown for the GTK driver |
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1 /**
2 * $Id: display.c,v 1.8 2007-09-08 04:05:35 nkeynes Exp $
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"
26 typedef struct keymap_entry {
27 uint16_t keycode;
28 input_key_callback_t callback;
29 void *data;
30 uint32_t value;
31 } *keymap_entry_t;
33 /**
34 * Colour format information
35 */
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 },
44 };
46 /**
47 * FIXME: make this more memory efficient
48 */
49 struct keymap_entry *keymap[65536];
52 static struct keymap_entry *input_create_key( uint16_t keycode )
53 {
54 struct keymap_entry *key = keymap[ keycode ];
55 if( key == NULL ) {
56 key = malloc( sizeof( struct keymap_entry ) );
57 assert( key != NULL );
58 keymap[ keycode ] = key;
59 key->keycode = keycode;
60 }
61 return key;
62 }
64 static void input_delete_key( uint16_t keycode )
65 {
66 struct keymap_entry *key = keymap[keycode];
67 if( key != NULL ) {
68 free( key );
69 keymap[keycode] = NULL;
70 }
71 }
73 static struct keymap_entry *input_get_key( uint16_t keycode )
74 {
75 return keymap[ keycode ];
76 }
78 gboolean input_register_key( const gchar *keysym, input_key_callback_t callback,
79 void *data, uint32_t value )
80 {
81 int i;
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);
85 gchar **s = strv;
86 while( *s != NULL ) {
87 uint16_t keycode = display_driver->resolve_keysym(g_strstrip(*s));
88 if( keycode == 0 )
89 return FALSE; /* Invalid keysym */
91 struct keymap_entry *key = input_create_key( keycode );
92 key->callback = callback;
93 key->data = data;
94 key->value = value;
95 s++;
96 }
97 g_strfreev(strv);
98 return TRUE;
99 }
101 void input_unregister_key( const gchar *keysym )
102 {
103 if( display_driver == NULL || keysym == NULL )
104 return;
105 uint16_t keycode = display_driver->resolve_keysym(keysym);
106 if( keycode == 0 )
107 return;
108 input_delete_key( keycode );
109 }
112 gboolean input_is_key_valid( const gchar *keysym )
113 {
114 if( display_driver == NULL )
115 return FALSE; /* No display driver */
116 return display_driver->resolve_keysym(keysym) != 0;
117 }
119 gboolean input_is_key_registered( const gchar *keysym )
120 {
121 if( display_driver == NULL )
122 return FALSE;
123 uint16_t keycode = display_driver->resolve_keysym(keysym);
124 if( keycode == 0 )
125 return FALSE;
126 return input_get_key( keycode ) != NULL;
127 }
129 void input_event_keydown( uint16_t keycode )
130 {
131 struct keymap_entry *key = input_get_key(keycode);
132 if( key != NULL ) {
133 key->callback( key->data, key->value, TRUE );
134 }
135 }
137 void input_event_keyup( uint16_t keycode )
138 {
139 struct keymap_entry *key = input_get_key(keycode);
140 if( key != NULL ) {
141 key->callback( key->data, key->value, FALSE );
142 }
143 }
147 gboolean display_set_driver( display_driver_t driver )
148 {
149 gboolean rv = TRUE;
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();
156 if( rv ) {
157 texcache_gl_init();
158 }
159 return rv;
160 }
.