filename | src/display.c |
changeset | 144:7f0714e89aaa |
next | 166:8aa70cf503a2 |
author | nkeynes |
date | Thu Jun 15 10:27:10 2006 +0000 (17 years ago) |
permissions | -rw-r--r-- |
last change | Add preliminary call-stack tracing ability Fix INTC state save/load/reset |
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1 /**
2 * $Id: display.c,v 1.1 2006-05-15 08:28:48 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 * FIXME: make this more memory efficient
35 */
36 struct keymap_entry *keymap[65536];
39 static struct keymap_entry *input_create_key( uint16_t keycode )
40 {
41 struct keymap_entry *key = keymap[ keycode ];
42 if( key == NULL ) {
43 key = malloc( sizeof( struct keymap_entry ) );
44 assert( key != NULL );
45 keymap[ keycode ] = key;
46 key->keycode = keycode;
47 }
48 return key;
49 }
51 static void input_delete_key( uint16_t keycode )
52 {
53 struct keymap_entry *key = keymap[keycode];
54 if( key != NULL ) {
55 free( key );
56 keymap[keycode] = NULL;
57 }
58 }
60 static struct keymap_entry *input_get_key( uint16_t keycode )
61 {
62 return keymap[ keycode ];
63 }
65 gboolean input_register_key( const gchar *keysym, input_key_callback_t callback,
66 void *data, uint32_t value )
67 {
68 if( display_driver == NULL || keysym == NULL )
69 return FALSE; /* No display driver */
70 uint16_t keycode = display_driver->resolve_keysym(keysym);
71 if( keycode == 0 )
72 return FALSE; /* Invalid keysym */
74 struct keymap_entry *key = input_create_key( keycode );
75 key->callback = callback;
76 key->data = data;
77 key->value = value;
78 INFO( "Registered key '%s' (%4x)", keysym, keycode );
79 return TRUE;
80 }
82 void input_unregister_key( const gchar *keysym )
83 {
84 if( display_driver == NULL || keysym == NULL )
85 return;
86 uint16_t keycode = display_driver->resolve_keysym(keysym);
87 if( keycode == 0 )
88 return;
89 input_delete_key( keycode );
90 }
93 gboolean input_is_key_valid( const gchar *keysym )
94 {
95 if( display_driver == NULL )
96 return FALSE; /* No display driver */
97 return display_driver->resolve_keysym(keysym) != 0;
98 }
100 gboolean input_is_key_registered( const gchar *keysym )
101 {
102 if( display_driver == NULL )
103 return FALSE;
104 uint16_t keycode = display_driver->resolve_keysym(keysym);
105 if( keycode == 0 )
106 return FALSE;
107 return input_get_key( keycode ) != NULL;
108 }
110 void input_event_keydown( uint16_t keycode )
111 {
112 struct keymap_entry *key = input_get_key(keycode);
113 if( key != NULL ) {
114 key->callback( key->data, key->value, TRUE );
115 }
116 }
118 void input_event_keyup( uint16_t keycode )
119 {
120 struct keymap_entry *key = input_get_key(keycode);
121 if( key != NULL ) {
122 key->callback( key->data, key->value, FALSE );
123 }
124 }
128 void display_set_driver( display_driver_t driver )
129 {
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 );
138 texcache_gl_init();
139 }
.