nkeynes@144: /**
nkeynes@477:  * $Id: display.c,v 1.12 2007-10-31 09:10:23 nkeynes Exp $
nkeynes@144:  *
nkeynes@144:  * Generic support for keyboard and other input sources. The active display
nkeynes@144:  * driver is expected to deliver events here, where they're translated and
nkeynes@144:  * passed to the appropriate dreamcast controllers (if any).
nkeynes@144:  *
nkeynes@144:  * Copyright (c) 2005 Nathan Keynes.
nkeynes@144:  *
nkeynes@144:  * This program is free software; you can redistribute it and/or modify
nkeynes@144:  * it under the terms of the GNU General Public License as published by
nkeynes@144:  * the Free Software Foundation; either version 2 of the License, or
nkeynes@144:  * (at your option) any later version.
nkeynes@144:  *
nkeynes@144:  * This program is distributed in the hope that it will be useful,
nkeynes@144:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@144:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@144:  * GNU General Public License for more details.
nkeynes@144:  */
nkeynes@144: 
nkeynes@144: #include <stdint.h>
nkeynes@144: #include <assert.h>
nkeynes@144: #include "dream.h"
nkeynes@144: #include "display.h"
nkeynes@431: #include "pvr2/pvr2.h"
nkeynes@144: 
nkeynes@531: display_driver_t display_driver_list[] = { 
nkeynes@531: 					   &display_gtk_driver,
nkeynes@531: 					   &display_null_driver,
nkeynes@531: 					   NULL };
nkeynes@531: 
nkeynes@144: typedef struct keymap_entry {
nkeynes@144:     uint16_t keycode;
nkeynes@144:     input_key_callback_t callback;
nkeynes@144:     void *data;
nkeynes@144:     uint32_t value;
nkeynes@144: } *keymap_entry_t;
nkeynes@144: 
nkeynes@144: /**
nkeynes@327:  * Colour format information
nkeynes@327:  */
nkeynes@327: struct colour_format colour_formats[] = {
nkeynes@329:     { GL_UNSIGNED_SHORT_1_5_5_5_REV, GL_BGRA, GL_RGB5_A1, 2 },
nkeynes@327:     { GL_UNSIGNED_SHORT_5_6_5, GL_RGB, GL_RGB5, 2 },
nkeynes@327:     { GL_UNSIGNED_SHORT_4_4_4_4_REV, GL_BGRA, GL_RGBA4, 2 },
nkeynes@451:     { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 }, /* YUV decoded to ARGB8888 */
nkeynes@327:     { GL_UNSIGNED_BYTE, GL_BGR, GL_RGB, 3 },
nkeynes@451:     { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 },
nkeynes@477:     { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 }, /* Index4 decoded */
nkeynes@477:     { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 }, /* Index8 decoded */
nkeynes@477:     { GL_UNSIGNED_BYTE, GL_BGRA, GL_RGBA8, 4 },
nkeynes@477:     { GL_UNSIGNED_BYTE, GL_RGB, GL_RGB, 3 },
nkeynes@352:     
nkeynes@327: };
nkeynes@327: 
nkeynes@327: /**
nkeynes@144:  * FIXME: make this more memory efficient
nkeynes@144:  */
nkeynes@144: struct keymap_entry *keymap[65536];
nkeynes@144: 
nkeynes@144: 
nkeynes@144: static struct keymap_entry *input_create_key( uint16_t keycode )
nkeynes@144: {
nkeynes@144:     struct keymap_entry *key = keymap[ keycode ];
nkeynes@144:     if( key == NULL ) {
nkeynes@144: 	key = malloc( sizeof( struct keymap_entry ) );
nkeynes@144: 	assert( key != NULL );
nkeynes@144: 	keymap[ keycode ] = key;
nkeynes@144: 	key->keycode = keycode;
nkeynes@144:     }
nkeynes@144:     return key;
nkeynes@144: }
nkeynes@144: 
nkeynes@451: static void input_delete_key( uint16_t keycode, input_key_callback_t callback, void *data,
nkeynes@451: 			      uint32_t value )
nkeynes@144: {
nkeynes@144:     struct keymap_entry *key = keymap[keycode];
nkeynes@451:     if( key != NULL && key->callback == callback && key->data == data && key->value == value ) {
nkeynes@144: 	free( key );
nkeynes@144: 	keymap[keycode] = NULL;
nkeynes@144:     }
nkeynes@144: }
nkeynes@144: 
nkeynes@144: static struct keymap_entry *input_get_key( uint16_t keycode )
nkeynes@144: {
nkeynes@144:     return keymap[ keycode ];
nkeynes@144: }
nkeynes@144: 
nkeynes@144: gboolean input_register_key( const gchar *keysym, input_key_callback_t callback,
nkeynes@144: 			     void *data, uint32_t value )
nkeynes@144: {
nkeynes@356:     if( display_driver == NULL || keysym == NULL || display_driver->resolve_keysym == NULL )
nkeynes@144: 	return FALSE; /* No display driver */
nkeynes@271:     gchar **strv = g_strsplit(keysym, ",", 16);
nkeynes@271:     gchar **s = strv;
nkeynes@271:     while( *s != NULL ) {
nkeynes@271: 	uint16_t keycode = display_driver->resolve_keysym(g_strstrip(*s));
nkeynes@271: 	if( keycode == 0 )
nkeynes@271: 	    return FALSE; /* Invalid keysym */
nkeynes@271: 	
nkeynes@271: 	struct keymap_entry *key = input_create_key( keycode );
nkeynes@271: 	key->callback = callback;
nkeynes@271: 	key->data = data;
nkeynes@271: 	key->value = value;
nkeynes@271: 	s++;
nkeynes@271:     }
nkeynes@271:     g_strfreev(strv);
nkeynes@144:     return TRUE;
nkeynes@144: }
nkeynes@144: 
nkeynes@451: void input_unregister_key( const gchar *keysym, input_key_callback_t callback,
nkeynes@451: 			   void *data, uint32_t value )
nkeynes@144: {
nkeynes@144:     if( display_driver == NULL || keysym == NULL )
nkeynes@144: 	return;
nkeynes@144:     uint16_t keycode = display_driver->resolve_keysym(keysym);
nkeynes@144:     if( keycode == 0 )
nkeynes@144: 	return;
nkeynes@451:     input_delete_key( keycode, callback, data, value );
nkeynes@144: }
nkeynes@144:     
nkeynes@144: 
nkeynes@144: gboolean input_is_key_valid( const gchar *keysym )
nkeynes@144: {
nkeynes@144:     if( display_driver == NULL )
nkeynes@144: 	return FALSE; /* No display driver */
nkeynes@144:     return display_driver->resolve_keysym(keysym) != 0;
nkeynes@144: }
nkeynes@144: 
nkeynes@144: gboolean input_is_key_registered( const gchar *keysym )
nkeynes@144: {
nkeynes@144:     if( display_driver == NULL )
nkeynes@144: 	return FALSE;
nkeynes@144:     uint16_t keycode = display_driver->resolve_keysym(keysym);
nkeynes@144:     if( keycode == 0 )
nkeynes@144: 	return FALSE;
nkeynes@144:     return input_get_key( keycode ) != NULL;
nkeynes@144: }
nkeynes@144: 
nkeynes@144: void input_event_keydown( uint16_t keycode )
nkeynes@144: {
nkeynes@144:     struct keymap_entry *key = input_get_key(keycode);
nkeynes@144:     if( key != NULL ) {
nkeynes@144: 	key->callback( key->data, key->value, TRUE );
nkeynes@144:     }	
nkeynes@144: }
nkeynes@144: 
nkeynes@144: void input_event_keyup( uint16_t keycode )
nkeynes@144: {
nkeynes@144:     struct keymap_entry *key = input_get_key(keycode);
nkeynes@144:     if( key != NULL ) {
nkeynes@144: 	key->callback( key->data, key->value, FALSE );
nkeynes@144:     }
nkeynes@144: }
nkeynes@144: 
nkeynes@531: display_driver_t get_display_driver_by_name( const char *name )
nkeynes@531: {
nkeynes@531:     int i;
nkeynes@531:     if( name == NULL ) {
nkeynes@531: 	return display_driver_list[0];
nkeynes@531:     }
nkeynes@531:     for( i=0; display_driver_list[i] != NULL; i++ ) {
nkeynes@531: 	if( strcasecmp( display_driver_list[i]->name, name ) == 0 ) {
nkeynes@531: 	    return display_driver_list[i];
nkeynes@531: 	}
nkeynes@531:     }
nkeynes@531: 
nkeynes@531:     return NULL;
nkeynes@531: }
nkeynes@144: 
nkeynes@144: 
nkeynes@370: gboolean display_set_driver( display_driver_t driver )
nkeynes@144: {
nkeynes@370:     gboolean rv = TRUE;
nkeynes@370:     if( display_driver != NULL && display_driver->shutdown_driver != NULL ) 
nkeynes@144: 	display_driver->shutdown_driver();
nkeynes@144: 
nkeynes@144:     display_driver = driver;
nkeynes@144:     if( driver->init_driver != NULL )
nkeynes@370: 	rv = driver->init_driver();
nkeynes@531:     if( !rv ) {
nkeynes@531: 	display_driver = NULL;
nkeynes@370:     }
nkeynes@370:     return rv;
nkeynes@144: }