/**

 * $Id$

 *

 * Public interface for dreamcast.c -

 * Central switchboard for the system. This pulls all the individual modules

 * together into some kind of coherent structure. This is also where you'd

 * add Naomi support, if I ever get a board to play with...

 *

 * Copyright (c) 2005 Nathan Keynes.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */

#ifndef lxdream_dreamcast_H

#define lxdream_dreamcast_H 1

#include <stdio.h>

#include "lxdream.h"

#ifdef __cplusplus

extern "C" {

#endif

#define DEFAULT_TIMESLICE_LENGTH 1000000 /* nanoseconds */

#define XLAT_NEW_CACHE_SIZE 40 MB

#define XLAT_TEMP_CACHE_SIZE 2 MB

#define XLAT_OLD_CACHE_SIZE 8 MB

struct lxdream_config_group; // Forward declaration

void dreamcast_configure(gboolean use_bootrom);

void dreamcast_configure_aica_only(void);

void dreamcast_init(gboolean use_bootrom);

void dreamcast_reset(void);

void dreamcast_run(void);

void dreamcast_set_run_time( unsigned int seconds, unsigned int nanosecs );

void dreamcast_set_exit_on_stop( gboolean flag );

void dreamcast_stop(void);

void dreamcast_shutdown(void);

gboolean dreamcast_is_running(void);

gboolean dreamcast_config_changed(void *data, struct lxdream_config_group *group, unsigned item,

                                       const gchar *oldval, const gchar *newval);

/**

 * Return if it's possible to start the VM - currently this requires 

 * a) A configured system

 * b) Some code to run (either a user program or a ROM)

 */

gboolean dreamcast_can_run(void);

/**

 * Notify the VM that a program (ELF or other binary) has been loaded.

 * 

 */

void dreamcast_program_loaded( const gchar *name, sh4addr_t entry_point );

#define DREAMCAST_SAVE_MAGIC "%!-lxDream!Save\0"

#define DREAMCAST_SAVE_VERSION 0x00010006

int dreamcast_save_state( const gchar *filename );

int dreamcast_load_state( const gchar *filename );

/* Quick saves */

#define MAX_QUICK_STATE 9

#define QUICK_STATE_FILENAME "%s/quicksave%d.dst"

void dreamcast_quick_save();

void dreamcast_quick_load();

unsigned int dreamcast_get_quick_state();

void dreamcast_set_quick_state( unsigned int state );

gboolean dreamcast_has_quick_state( unsigned int state );

/**

 * Load the front-buffer image from the specified file.

 * If the file is not a valid save state, returns NULL. Otherwise,

 * returns a newly allocated frame_buffer that should be freed

 * by the caller. (The data buffer is contained within the

 * allocation and does not need to be freed separately)

 */

frame_buffer_t dreamcast_load_preview( const gchar *filename );

gboolean dreamcast_load_fakebios();

#define SCENE_SAVE_MAGIC "%!-lxDream!Scene"

#define SCENE_SAVE_VERSION 0x00010000

extern unsigned char dc_main_ram[];

extern unsigned char dc_boot_rom[];

extern unsigned char dc_flash_ram[];

#ifdef __cplusplus

}

#endif

#endif /* !lxdream_dreamcast_H */