filename | src/display.c |
changeset | 477:9a373f2ff009 |
prev | 451:50622730f226 |
next | 531:f0fee3ba71d1 |
author | nkeynes |
date | Sat Nov 17 01:17:01 2007 +0000 (16 years ago) |
permissions | -rw-r--r-- |
last change | Skip over the "undefined" instructions that actually pass on the SH4 - leaving in until we can determine if they actually do anything, or if they're effectively NOPs |
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1 /**
2 * $Id: display.c,v 1.12 2007-10-31 09:10:23 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"
25 #include "pvr2/pvr2.h"
27 typedef struct keymap_entry {
28 uint16_t keycode;
29 input_key_callback_t callback;
30 void *data;
31 uint32_t value;
32 } *keymap_entry_t;
34 /**
35 * Colour format information
36 */
37 struct colour_format colour_formats[] = {
38 { GL_UNSIGNED_SHORT_1_5_5_5_REV, GL_BGRA, GL_RGB5_A1, 2 },
39 { GL_UNSIGNED_SHORT_5_6_5, GL_RGB, GL_RGB5, 2 },
40 { GL_UNSIGNED_SHORT_4_4_4_4_REV, GL_BGRA, GL_RGBA4, 2 },
41 { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 }, /* YUV decoded to ARGB8888 */
42 { GL_UNSIGNED_BYTE, GL_BGR, GL_RGB, 3 },
43 { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 },
44 { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 }, /* Index4 decoded */
45 { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 }, /* Index8 decoded */
46 { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 },
47 { GL_UNSIGNED_BYTE, GL_RGB, GL_RGB, 3 },
49 };
51 /**
52 * FIXME: make this more memory efficient
53 */
54 struct keymap_entry *keymap[65536];
57 static struct keymap_entry *input_create_key( uint16_t keycode )
58 {
59 struct keymap_entry *key = keymap[ keycode ];
60 if( key == NULL ) {
61 key = malloc( sizeof( struct keymap_entry ) );
62 assert( key != NULL );
63 keymap[ keycode ] = key;
64 key->keycode = keycode;
65 }
66 return key;
67 }
69 static void input_delete_key( uint16_t keycode, input_key_callback_t callback, void *data,
70 uint32_t value )
71 {
72 struct keymap_entry *key = keymap[keycode];
73 if( key != NULL && key->callback == callback && key->data == data && key->value == value ) {
74 free( key );
75 keymap[keycode] = NULL;
76 }
77 }
79 static struct keymap_entry *input_get_key( uint16_t keycode )
80 {
81 return keymap[ keycode ];
82 }
84 gboolean input_register_key( const gchar *keysym, input_key_callback_t callback,
85 void *data, uint32_t value )
86 {
87 if( display_driver == NULL || keysym == NULL || display_driver->resolve_keysym == NULL )
88 return FALSE; /* No display driver */
89 gchar **strv = g_strsplit(keysym, ",", 16);
90 gchar **s = strv;
91 while( *s != NULL ) {
92 uint16_t keycode = display_driver->resolve_keysym(g_strstrip(*s));
93 if( keycode == 0 )
94 return FALSE; /* Invalid keysym */
96 struct keymap_entry *key = input_create_key( keycode );
97 key->callback = callback;
98 key->data = data;
99 key->value = value;
100 s++;
101 }
102 g_strfreev(strv);
103 return TRUE;
104 }
106 void input_unregister_key( const gchar *keysym, input_key_callback_t callback,
107 void *data, uint32_t value )
108 {
109 if( display_driver == NULL || keysym == NULL )
110 return;
111 uint16_t keycode = display_driver->resolve_keysym(keysym);
112 if( keycode == 0 )
113 return;
114 input_delete_key( keycode, callback, data, value );
115 }
118 gboolean input_is_key_valid( const gchar *keysym )
119 {
120 if( display_driver == NULL )
121 return FALSE; /* No display driver */
122 return display_driver->resolve_keysym(keysym) != 0;
123 }
125 gboolean input_is_key_registered( const gchar *keysym )
126 {
127 if( display_driver == NULL )
128 return FALSE;
129 uint16_t keycode = display_driver->resolve_keysym(keysym);
130 if( keycode == 0 )
131 return FALSE;
132 return input_get_key( keycode ) != NULL;
133 }
135 void input_event_keydown( uint16_t keycode )
136 {
137 struct keymap_entry *key = input_get_key(keycode);
138 if( key != NULL ) {
139 key->callback( key->data, key->value, TRUE );
140 }
141 }
143 void input_event_keyup( uint16_t keycode )
144 {
145 struct keymap_entry *key = input_get_key(keycode);
146 if( key != NULL ) {
147 key->callback( key->data, key->value, FALSE );
148 }
149 }
153 gboolean display_set_driver( display_driver_t driver )
154 {
155 gboolean rv = TRUE;
156 if( display_driver != NULL && display_driver->shutdown_driver != NULL )
157 display_driver->shutdown_driver();
159 display_driver = driver;
160 if( driver->init_driver != NULL )
161 rv = driver->init_driver();
162 if( rv ) {
163 texcache_gl_init();
164 }
165 return rv;
166 }
.