/**

 * $Id: dream.h,v 1.7 2005-12-26 03:54:52 nkeynes Exp $

 *

 * Miscellaneous application-wide declarations (mainly logging atm)

 *

 * 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 dream_H

#define dream_H 1

#include <stdio.h>

#include <stdlib.h>

#include <stdint.h>

#include <string.h>

#include <glib/gtypes.h>

#ifdef __cplusplus

extern "C" {

#endif

/************************ Modules ********************************/

/**

 * Basic module structure defining the common operations across all

 * modules, ie start, stop, reset, etc. 

 */

typedef struct dreamcast_module {

    char *name;

    /**

     * Perform all initial module setup (ie register / allocate any

     * memory required, etc). Only called once during DreamOn startup

     */

    void (*init)();

    /**

     * Reset the module into it's initial system boot state. Will be called

     * once after init(), as well as whenever the user requests a reset.

     */

    void (*reset)();

    /**

     * Set the module into a running state (may be NULL)

     */

    void (*start)();

    /**

     * Execute one time-slice worth of operations, for the given number of

     * nanoseconds.

     * @return Number of nanoseconds actually executed

     */

    uint32_t (*run_time_slice)( uint32_t nanosecs );

    /**

     * Set the module into a stopped state (may be NULL)

     */

    void (*stop)();

    /**

     * Save the module state to the FILE stream. May be NULL, in which case

     * the module is considered to have no state.

     */

    void (*save)(FILE *);

    /**

     * Load the saved module state from the FILE stream. May be NULL, in which

     * case reset() will be called instead.

     * @return 0 on success, nonzero on failure.

     */

    int (*load)(FILE *);

} *dreamcast_module_t;

void dreamcast_register_module( dreamcast_module_t );

extern struct dreamcast_module mem_module;

extern struct dreamcast_module sh4_module;

extern struct dreamcast_module asic_module;

extern struct dreamcast_module pvr2_module;

extern struct dreamcast_module aica_module;

extern struct dreamcast_module ide_module;

extern struct dreamcast_module maple_module;

extern struct dreamcast_module pvr2_module;

extern struct dreamcast_module gui_module;

extern struct dreamcast_module unknown_module;

/*************************** Logging **************************/

#define EMIT_FATAL 0

#define EMIT_ERR 1

#define EMIT_WARN 2

#define EMIT_INFO 3

#define EMIT_DEBUG 4

#define EMIT_TRACE 5

#ifndef MODULE

#define MODULE unknown_module

#endif

void emit( void *, int level, const char *source, const char *msg, ... );

#define FATAL( ... ) emit( NULL, EMIT_FATAL, MODULE.name, __VA_ARGS__ )

#define ERROR( ... ) emit( NULL, EMIT_ERR, MODULE.name, __VA_ARGS__ )

#define WARN( ... ) emit( NULL, EMIT_WARN, MODULE.name, __VA_ARGS__ )

#define INFO( ... ) emit( NULL, EMIT_INFO, MODULE.name, __VA_ARGS__ )

#define DEBUG( ... ) emit( NULL, EMIT_DEBUG, MODULE.name, __VA_ARGS__ )

#define TRACE( ... ) emit( NULL, EMIT_TRACE, MODULE.name, __VA_ARGS__ )

#define BIOS_PATH "../bios"

void fwrite_string( char *s, FILE *f );

int fread_string( char *s, int maxlen, FILE *f );

#ifdef __cplusplus

}

#endif

#endif