lxdream.org :: lxdream/src/display.c r144:7f0714e89aaa (annotated)

tree revision 144:7f0714e89aaa

filename	src/display.c
changeset	144:7f0714e89aaa
next	166:8aa70cf503a2
author	nkeynes
date	Mon May 15 08:28:52 2006 +0000 (16 years ago)
permissions	-rw-r--r--
last change	Rename video_driver to display_driver Add input source to display Implement configuration file support Hook controllers up to configuration

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nkeynes@144	1	/**
nkeynes@144	2	* $Id: display.c,v 1.1 2006-05-15 08:28:48 nkeynes Exp $
nkeynes@144	3	*
nkeynes@144	4	* Generic support for keyboard and other input sources. The active display
nkeynes@144	5	* driver is expected to deliver events here, where they're translated and
nkeynes@144	6	* passed to the appropriate dreamcast controllers (if any).
nkeynes@144	7	*
nkeynes@144	8	* Copyright (c) 2005 Nathan Keynes.
nkeynes@144	9	*
nkeynes@144	10	* This program is free software; you can redistribute it and/or modify
nkeynes@144	11	* it under the terms of the GNU General Public License as published by
nkeynes@144	12	* the Free Software Foundation; either version 2 of the License, or
nkeynes@144	13	* (at your option) any later version.
nkeynes@144	14	*
nkeynes@144	15	* This program is distributed in the hope that it will be useful,
nkeynes@144	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@144	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
nkeynes@144	18	* GNU General Public License for more details.
nkeynes@144	19	*/
nkeynes@144	20
nkeynes@144	21	#include <stdint.h>
nkeynes@144	22	#include <assert.h>
nkeynes@144	23	#include "dream.h"
nkeynes@144	24	#include "display.h"
nkeynes@144	25
nkeynes@144	26	typedef struct keymap_entry {
nkeynes@144	27	uint16_t keycode;
nkeynes@144	28	input_key_callback_t callback;
nkeynes@144	29	void *data;
nkeynes@144	30	uint32_t value;
nkeynes@144	31	} *keymap_entry_t;
nkeynes@144	32
nkeynes@144	33	/**
nkeynes@144	34	* FIXME: make this more memory efficient
nkeynes@144	35	*/
nkeynes@144	36	struct keymap_entry *keymap[65536];
nkeynes@144	37
nkeynes@144	38
nkeynes@144	39	static struct keymap_entry *input_create_key( uint16_t keycode )
nkeynes@144	40	{
nkeynes@144	41	struct keymap_entry *key = keymap[ keycode ];
nkeynes@144	42	if( key == NULL ) {
nkeynes@144	43	key = malloc( sizeof( struct keymap_entry ) );
nkeynes@144	44	assert( key != NULL );
nkeynes@144	45	keymap[ keycode ] = key;
nkeynes@144	46	key->keycode = keycode;
nkeynes@144	47	}
nkeynes@144	48	return key;
nkeynes@144	49	}
nkeynes@144	50
nkeynes@144	51	static void input_delete_key( uint16_t keycode )
nkeynes@144	52	{
nkeynes@144	53	struct keymap_entry *key = keymap[keycode];
nkeynes@144	54	if( key != NULL ) {
nkeynes@144	55	free( key );
nkeynes@144	56	keymap[keycode] = NULL;
nkeynes@144	57	}
nkeynes@144	58	}
nkeynes@144	59
nkeynes@144	60	static struct keymap_entry *input_get_key( uint16_t keycode )
nkeynes@144	61	{
nkeynes@144	62	return keymap[ keycode ];
nkeynes@144	63	}
nkeynes@144	64
nkeynes@144	65	gboolean input_register_key( const gchar *keysym, input_key_callback_t callback,
nkeynes@144	66	void *data, uint32_t value )
nkeynes@144	67	{
nkeynes@144	68	if( display_driver == NULL \|\| keysym == NULL )
nkeynes@144	69	return FALSE; /* No display driver */
nkeynes@144	70	uint16_t keycode = display_driver->resolve_keysym(keysym);
nkeynes@144	71	if( keycode == 0 )
nkeynes@144	72	return FALSE; /* Invalid keysym */
nkeynes@144	73
nkeynes@144	74	struct keymap_entry *key = input_create_key( keycode );
nkeynes@144	75	key->callback = callback;
nkeynes@144	76	key->data = data;
nkeynes@144	77	key->value = value;
nkeynes@144	78	INFO( "Registered key '%s' (%4x)", keysym, keycode );
nkeynes@144	79	return TRUE;
nkeynes@144	80	}
nkeynes@144	81
nkeynes@144	82	void input_unregister_key( const gchar *keysym )
nkeynes@144	83	{
nkeynes@144	84	if( display_driver == NULL \|\| keysym == NULL )
nkeynes@144	85	return;
nkeynes@144	86	uint16_t keycode = display_driver->resolve_keysym(keysym);
nkeynes@144	87	if( keycode == 0 )
nkeynes@144	88	return;
nkeynes@144	89	input_delete_key( keycode );
nkeynes@144	90	}
nkeynes@144	91
nkeynes@144	92
nkeynes@144	93	gboolean input_is_key_valid( const gchar *keysym )
nkeynes@144	94	{
nkeynes@144	95	if( display_driver == NULL )
nkeynes@144	96	return FALSE; /* No display driver */
nkeynes@144	97	return display_driver->resolve_keysym(keysym) != 0;
nkeynes@144	98	}
nkeynes@144	99
nkeynes@144	100	gboolean input_is_key_registered( const gchar *keysym )
nkeynes@144	101	{
nkeynes@144	102	if( display_driver == NULL )
nkeynes@144	103	return FALSE;
nkeynes@144	104	uint16_t keycode = display_driver->resolve_keysym(keysym);
nkeynes@144	105	if( keycode == 0 )
nkeynes@144	106	return FALSE;
nkeynes@144	107	return input_get_key( keycode ) != NULL;
nkeynes@144	108	}
nkeynes@144	109
nkeynes@144	110	void input_event_keydown( uint16_t keycode )
nkeynes@144	111	{
nkeynes@144	112	struct keymap_entry *key = input_get_key(keycode);
nkeynes@144	113	if( key != NULL ) {
nkeynes@144	114	key->callback( key->data, key->value, TRUE );
nkeynes@144	115	}
nkeynes@144	116	}
nkeynes@144	117
nkeynes@144	118	void input_event_keyup( uint16_t keycode )
nkeynes@144	119	{
nkeynes@144	120	struct keymap_entry *key = input_get_key(keycode);
nkeynes@144	121	if( key != NULL ) {
nkeynes@144	122	key->callback( key->data, key->value, FALSE );
nkeynes@144	123	}
nkeynes@144	124	}
nkeynes@144	125
nkeynes@144	126
nkeynes@144	127
nkeynes@144	128	void display_set_driver( display_driver_t driver )
nkeynes@144	129	{
nkeynes@144	130	if( display_driver != NULL && display_driver->shutdown_driver != NULL )
nkeynes@144	131	display_driver->shutdown_driver();
nkeynes@144	132
nkeynes@144	133	display_driver = driver;
nkeynes@144	134	if( driver->init_driver != NULL )
nkeynes@144	135	driver->init_driver();
nkeynes@144	136	driver->set_display_format( 640, 480, COLFMT_ARGB8888 );
nkeynes@144	137	driver->set_render_format( 640, 480, COLFMT_ARGB8888, FALSE );
nkeynes@144	138	texcache_gl_init();
nkeynes@144	139	}