nkeynes@144 | 1 | /**
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nkeynes@166 | 2 | * $Id: display.c,v 1.2 2006-06-18 12:01:50 nkeynes Exp $
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nkeynes@144 | 3 | *
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nkeynes@144 | 4 | * Generic support for keyboard and other input sources. The active display
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nkeynes@144 | 5 | * driver is expected to deliver events here, where they're translated and
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nkeynes@144 | 6 | * passed to the appropriate dreamcast controllers (if any).
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nkeynes@144 | 7 | *
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nkeynes@144 | 8 | * Copyright (c) 2005 Nathan Keynes.
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nkeynes@144 | 9 | *
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nkeynes@144 | 10 | * This program is free software; you can redistribute it and/or modify
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nkeynes@144 | 11 | * it under the terms of the GNU General Public License as published by
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nkeynes@144 | 12 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@144 | 13 | * (at your option) any later version.
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nkeynes@144 | 14 | *
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nkeynes@144 | 15 | * This program is distributed in the hope that it will be useful,
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nkeynes@144 | 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@144 | 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@144 | 18 | * GNU General Public License for more details.
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nkeynes@144 | 19 | */
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nkeynes@144 | 20 |
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nkeynes@144 | 21 | #include <stdint.h>
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nkeynes@144 | 22 | #include <assert.h>
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nkeynes@144 | 23 | #include "dream.h"
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nkeynes@144 | 24 | #include "display.h"
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nkeynes@144 | 25 |
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nkeynes@144 | 26 | typedef struct keymap_entry {
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nkeynes@144 | 27 | uint16_t keycode;
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nkeynes@144 | 28 | input_key_callback_t callback;
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nkeynes@144 | 29 | void *data;
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nkeynes@144 | 30 | uint32_t value;
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nkeynes@144 | 31 | } *keymap_entry_t;
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nkeynes@144 | 32 |
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nkeynes@144 | 33 | /**
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nkeynes@144 | 34 | * FIXME: make this more memory efficient
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nkeynes@144 | 35 | */
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nkeynes@144 | 36 | struct keymap_entry *keymap[65536];
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nkeynes@144 | 37 |
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nkeynes@144 | 38 |
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nkeynes@144 | 39 | static struct keymap_entry *input_create_key( uint16_t keycode )
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nkeynes@144 | 40 | {
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nkeynes@144 | 41 | struct keymap_entry *key = keymap[ keycode ];
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nkeynes@144 | 42 | if( key == NULL ) {
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nkeynes@144 | 43 | key = malloc( sizeof( struct keymap_entry ) );
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nkeynes@144 | 44 | assert( key != NULL );
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nkeynes@144 | 45 | keymap[ keycode ] = key;
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nkeynes@144 | 46 | key->keycode = keycode;
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nkeynes@144 | 47 | }
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nkeynes@144 | 48 | return key;
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nkeynes@144 | 49 | }
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nkeynes@144 | 50 |
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nkeynes@144 | 51 | static void input_delete_key( uint16_t keycode )
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nkeynes@144 | 52 | {
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nkeynes@144 | 53 | struct keymap_entry *key = keymap[keycode];
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nkeynes@144 | 54 | if( key != NULL ) {
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nkeynes@144 | 55 | free( key );
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nkeynes@144 | 56 | keymap[keycode] = NULL;
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nkeynes@144 | 57 | }
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nkeynes@144 | 58 | }
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nkeynes@144 | 59 |
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nkeynes@144 | 60 | static struct keymap_entry *input_get_key( uint16_t keycode )
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nkeynes@144 | 61 | {
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nkeynes@144 | 62 | return keymap[ keycode ];
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nkeynes@144 | 63 | }
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nkeynes@144 | 64 |
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nkeynes@144 | 65 | gboolean input_register_key( const gchar *keysym, input_key_callback_t callback,
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nkeynes@144 | 66 | void *data, uint32_t value )
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nkeynes@144 | 67 | {
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nkeynes@144 | 68 | if( display_driver == NULL || keysym == NULL )
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nkeynes@144 | 69 | return FALSE; /* No display driver */
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nkeynes@144 | 70 | uint16_t keycode = display_driver->resolve_keysym(keysym);
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nkeynes@144 | 71 | if( keycode == 0 )
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nkeynes@144 | 72 | return FALSE; /* Invalid keysym */
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nkeynes@144 | 73 |
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nkeynes@144 | 74 | struct keymap_entry *key = input_create_key( keycode );
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nkeynes@144 | 75 | key->callback = callback;
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nkeynes@144 | 76 | key->data = data;
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nkeynes@144 | 77 | key->value = value;
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nkeynes@144 | 78 | return TRUE;
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nkeynes@144 | 79 | }
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nkeynes@144 | 80 |
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nkeynes@144 | 81 | void input_unregister_key( const gchar *keysym )
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nkeynes@144 | 82 | {
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nkeynes@144 | 83 | if( display_driver == NULL || keysym == NULL )
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nkeynes@144 | 84 | return;
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nkeynes@144 | 85 | uint16_t keycode = display_driver->resolve_keysym(keysym);
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nkeynes@144 | 86 | if( keycode == 0 )
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nkeynes@144 | 87 | return;
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nkeynes@144 | 88 | input_delete_key( keycode );
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nkeynes@144 | 89 | }
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nkeynes@144 | 90 |
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nkeynes@144 | 91 |
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nkeynes@144 | 92 | gboolean input_is_key_valid( const gchar *keysym )
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nkeynes@144 | 93 | {
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nkeynes@144 | 94 | if( display_driver == NULL )
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nkeynes@144 | 95 | return FALSE; /* No display driver */
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nkeynes@144 | 96 | return display_driver->resolve_keysym(keysym) != 0;
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nkeynes@144 | 97 | }
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nkeynes@144 | 98 |
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nkeynes@144 | 99 | gboolean input_is_key_registered( const gchar *keysym )
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nkeynes@144 | 100 | {
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nkeynes@144 | 101 | if( display_driver == NULL )
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nkeynes@144 | 102 | return FALSE;
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nkeynes@144 | 103 | uint16_t keycode = display_driver->resolve_keysym(keysym);
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nkeynes@144 | 104 | if( keycode == 0 )
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nkeynes@144 | 105 | return FALSE;
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nkeynes@144 | 106 | return input_get_key( keycode ) != NULL;
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nkeynes@144 | 107 | }
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nkeynes@144 | 108 |
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nkeynes@144 | 109 | void input_event_keydown( uint16_t keycode )
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nkeynes@144 | 110 | {
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nkeynes@144 | 111 | struct keymap_entry *key = input_get_key(keycode);
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nkeynes@144 | 112 | if( key != NULL ) {
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nkeynes@144 | 113 | key->callback( key->data, key->value, TRUE );
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nkeynes@144 | 114 | }
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nkeynes@144 | 115 | }
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nkeynes@144 | 116 |
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nkeynes@144 | 117 | void input_event_keyup( uint16_t keycode )
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nkeynes@144 | 118 | {
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nkeynes@144 | 119 | struct keymap_entry *key = input_get_key(keycode);
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nkeynes@144 | 120 | if( key != NULL ) {
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nkeynes@144 | 121 | key->callback( key->data, key->value, FALSE );
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nkeynes@144 | 122 | }
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nkeynes@144 | 123 | }
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nkeynes@144 | 124 |
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nkeynes@144 | 125 |
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nkeynes@144 | 126 |
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nkeynes@144 | 127 | void display_set_driver( display_driver_t driver )
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nkeynes@144 | 128 | {
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nkeynes@144 | 129 | if( display_driver != NULL && display_driver->shutdown_driver != NULL )
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nkeynes@144 | 130 | display_driver->shutdown_driver();
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nkeynes@144 | 131 |
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nkeynes@144 | 132 | display_driver = driver;
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nkeynes@144 | 133 | if( driver->init_driver != NULL )
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nkeynes@144 | 134 | driver->init_driver();
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nkeynes@144 | 135 | driver->set_display_format( 640, 480, COLFMT_ARGB8888 );
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nkeynes@144 | 136 | driver->set_render_format( 640, 480, COLFMT_ARGB8888, FALSE );
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nkeynes@144 | 137 | texcache_gl_init();
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nkeynes@144 | 138 | }
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