lxdream.org :: lxdream/src/display.c r477:9a373f2ff009

tree revision 509:d72564edc482

filename	src/display.c
changeset	477:9a373f2ff009
prev	451:50622730f226
next	531:f0fee3ba71d1
author	nkeynes
date	Wed Nov 14 10:18:21 2007 +0000 (16 years ago)
permissions	-rw-r--r--
last change	Add portugese and german translations (thanks to GT and TK)

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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 }