/**

  * $Id: main.c,v 1.35 2007-11-07 11:45:53 nkeynes Exp $

  *

  * Main program, initializes dreamcast and gui, then passes control off to

  * the main loop. 

  *

  * 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.

  */

 #include <unistd.h>

 #include <getopt.h>

 #include "dream.h"

 #include "config.h"

 #include "syscall.h"

 #include "mem.h"

 #include "dreamcast.h"

 #include "display.h"

 #include "loader.h"

 #include "gui.h"

 #include "aica/audio.h"

 #include "gdrom/gdrom.h"

 #include "maple/maple.h"

 #include "sh4/sh4core.h"

 #define S3M_PLAYER "s3mplay.bin"

 char *option_list = "a:m:s:A:V:puhbd:c:t:xD";

 struct option longopts[1] = { { NULL, 0, 0, 0 } };

 char *aica_program = NULL;

 char *s3m_file = NULL;

 const char *disc_file = NULL;

 char *display_driver_name = NULL;

 char *audio_driver_name = NULL;

 gboolean start_immediately = FALSE;

 gboolean headless = FALSE;

 gboolean without_bios = FALSE;

 gboolean use_xlat = TRUE;

 gboolean show_debugger = FALSE;

 uint32_t time_secs = 0;

 uint32_t time_nanos = 0;

 extern uint32_t sh4_cpu_multiplier;

 int main (int argc, char *argv[])

 {

     int opt, i;

     double t;

     gboolean display_ok;

     install_crash_handler();

 #ifdef ENABLE_NLS

     bindtextdomain (PACKAGE, PACKAGE_LOCALE_DIR);

     textdomain (PACKAGE);

 #endif

     display_ok = gui_parse_cmdline(&argc, &argv);

     while( (opt = getopt_long( argc, argv, option_list, longopts, NULL )) != -1 ) {

 	switch( opt ) {

 	case 'a': /* AICA only mode - argument is an AICA program */

 	    aica_program = optarg;

 	    break;

 	case 'c': /* Config file */

 	    lxdream_set_config_filename(optarg);

 	    break;

 	case 'd': /* Mount disc */

 	    disc_file = optarg;

 	    break;

 	case 'D': /* Launch w/ debugger */

 	    show_debugger = TRUE;

 	    break;

 	case 'm': /* Set SH4 CPU clock multiplier (default 0.5) */

 	    t = strtod(optarg, NULL);

 	    sh4_cpu_multiplier = (int)(1000.0/t);

 	    break;

 	case 's': /* AICA-only w/ S3M player */

 	    aica_program = S3M_PLAYER;

 	    s3m_file = optarg;

 	    break;

 	case 'A': /* Audio driver */

 	    audio_driver_name = optarg;

 	    break;

 	case 'V': /* Video driver */

 	    display_driver_name = optarg;

 	    break;

 	case 'p': /* Start immediately */

 	    start_immediately = TRUE;

     	    break;

 	case 'u': /* Allow unsafe dcload syscalls */

 	    dcload_set_allow_unsafe(TRUE);

 	    break;

     	case 'b': /* No BIOS */

     	    without_bios = TRUE;

     	    break;

         case 'h': /* Headless */

             headless = TRUE;

             break;

 	case 't': /* Time limit */

 	    t = strtod(optarg, NULL);

 	    time_secs = (uint32_t)t;

 	    time_nanos = (int)((t - time_secs) * 1000000000);

 	    break;

 	case 'x': /* Disable translator */

 	    use_xlat = FALSE;

 	    break;

 	}

     }

     lxdream_load_config( );

     if( aica_program == NULL ) {

 	dreamcast_init();

     } else {

 	dreamcast_configure_aica_only();

 	mem_load_block( aica_program, 0x00800000, 2048*1024 );

 	if( s3m_file != NULL ) {

 	    mem_load_block( s3m_file, 0x00810000, 2048*1024 - 0x10000 );

 	}

     }

     if( without_bios ) {

     	bios_install();

 	dcload_install();

     }

     audio_driver_t audio_driver = get_audio_driver_by_name(audio_driver_name);

     if( audio_driver == NULL ) {

 	ERROR( "Audio driver '%s' not found, aborting.", audio_driver_name );

 	exit(2);

     } else if( audio_set_driver( audio_driver, 44100, AUDIO_FMT_16ST ) == FALSE ) {

 	ERROR( "Failed to initialize audio driver '%s', using null driver", 

 	       audio_driver->name );

 	audio_set_driver( &audio_null_driver, 44100, AUDIO_FMT_16ST );

     }

     if( headless ) {

 	display_set_driver( &display_null_driver );

     } else {

 	gui_init(show_debugger);

 	display_driver_t display_driver = get_display_driver_by_name(display_driver_name);

 	if( display_driver == NULL ) {

 	    ERROR( "Video driver '%s' not found, aborting.", display_driver_name );

 	    exit(2);

 	} else if( display_set_driver( display_driver ) == FALSE ) {

 	    ERROR( "Video driver '%s' failed to initialize (could not connect to display?)", 

 		   display_driver->name );

 	    exit(2);

 	}

     }

     maple_reattach_all();

     INFO( "%s! ready...", APP_NAME );

     for( ; optind < argc; optind++ ) {

 	gboolean ok = gdrom_menu_open_file(argv[optind]);

 	if( !ok ) {

 	    ok = file_load_magic( argv[optind] );

 	}

 	if( !ok ) {

 	    ERROR( "Unrecognized file '%s'", argv[optind] );

 	}

 	start_immediately = ok;

     }

     if( disc_file != NULL ) {

 	gdrom_menu_open_file( disc_file );

     }

     if( gdrom_get_current_disc() == NULL ) {

 	disc_file = lxdream_get_config_value( CONFIG_GDROM );

 	if( disc_file != NULL ) {

 	    gdrom_menu_open_file( disc_file );

 	}

     }

     sh4_set_use_xlat( use_xlat );

     if( start_immediately ) {

 	if( time_nanos != 0 || time_secs != 0 ) {

 	    dreamcast_run_for(time_secs, time_nanos);

 	    return 0;

 	} else {

 	    dreamcast_run();

 	}

     }

     if( !headless ) {

 	gui_main_loop();

     }

     return 0;

 }