/**

  * $Id$

  *

  * 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 <stdlib.h>

 #include <unistd.h>

 #include <getopt.h>

 #include <glib/gi18n.h>

 #include "lxdream.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/sh4.h"

 char *option_list = "a:A:c:dhHl:m:npt:T:uvV:x?";

 struct option longopts[] = {

         { "aica", required_argument, NULL, 'a' },

         { "audio", required_argument, NULL, 'A' },

         { "config", required_argument, NULL, 'c' },

         { "debugger", no_argument, NULL, 'D' },

         { "help", no_argument, NULL, 'h' },

         { "headless", no_argument, NULL, 'H' },

         { "log", required_argument, NULL,'l' }, 

         { "multiplier", required_argument, NULL, 'm' },

         { "run-time", required_argument, NULL, 't' },

         { "trace", required_argument, NULL, 'T' },

         { "unsafe", no_argument, NULL, 'u' },

         { "video", no_argument, NULL, 'V' },

         { "version", no_argument, NULL, 'v' }, 

         { NULL, 0, 0, 0 } };

 char *aica_program = NULL;

 char *display_driver_name = NULL;

 char *audio_driver_name = NULL;

 char *trace_regions = NULL;

 gboolean start_immediately = FALSE;

 gboolean no_start = FALSE;

 gboolean headless = FALSE;

 gboolean use_xlat = TRUE;

 gboolean show_debugger = FALSE;

 extern uint32_t sh4_cpu_multiplier;

 void print_version()

 {

     printf( "lxdream " APP_VERSION "\n" );

 }

 void print_usage()

 {

     print_version();

     printf( "Usage: lxdream [options] [disc-file] [program-file]\n\n" );

     printf( "Options:\n" );

     printf( "   -a, --aica=PROGFILE    %s\n", _("Run the AICA SPU only, with the supplied program") );

     printf( "   -A, --audio=DRIVER     %s\n", _("Use the specified audio driver (? to list)") );

     printf( "   -c, --config=CONFFILE  %s\n", _("Load configuration from CONFFILE") );

     printf( "   -d, --debugger         %s\n", _("Start in debugger mode") );

     printf( "   -h, --help             %s\n", _("Display this usage information") );

     printf( "   -H, --headless         %s\n", _("Run in headless (no video) mode") );

     printf( "   -l, --log=LEVEL        %s\n", _("Set the output log level") );

     printf( "   -m, --multiplier=SCALE %s\n", _("Set the SH4 multiplier (1.0 = fullspeed)") );

     printf( "   -n                     %s\n", _("Don't start running immediately") );

     printf( "   -p                     %s\n", _("Start running immediately on startup") );

     printf( "   -t, --run-time=SECONDS %s\n", _("Run for the specified number of seconds") );

     printf( "   -T, --trace=REGIONS    %s\n", _("Output trace information for the named regions") );

     printf( "   -u, --unsafe           %s\n", _("Allow unsafe dcload syscalls") );

     printf( "   -v, --version          %s\n", _("Print the lxdream version string") );

     printf( "   -V, --video=DRIVER     %s\n", _("Use the specified video driver (? to list)") );

     printf( "   -x                     %s\n", _("Disable the SH4 translator") );

 }

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

 {

     int opt;

     double t;

     gboolean display_ok;

     uint32_t time_secs, time_nanos;

     install_crash_handler();

     gdrom_get_native_devices();

 #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 'A': /* Audio driver */

         audio_driver_name = optarg;

         if( strcmp(audio_driver_name, "?") == 0 ) {

             print_version();

             print_audio_drivers(stdout);

             exit(0);

         }

         break;

 	case 'c': /* Config file */

 	    lxdream_set_config_filename(optarg);

 	    break;

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

 	    show_debugger = TRUE;

 	    break;

     case 'h': /* help */

     case '?':

         print_usage();

         exit(0);

         break;

     case 'H': /* Headless - shorthand for -V null */

         display_driver_name = "null";

         break;

     case 'l': /* Log verbosity */

         if( !set_global_log_level(optarg) ) {

             ERROR( "Unrecognized log level '%s'", optarg );

         }

         break;

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

 	    t = strtod(optarg, NULL);

 	    sh4_cpu_multiplier = (int)(1000.0/t);

 	    break;

 	case 'n': /* Don't start immediately */

 	    no_start = TRUE;

 	    start_immediately = FALSE;

 	    break;

 	case 'p': /* Start immediately */

 	    start_immediately = TRUE;

 	    no_start = FALSE;

 	    break;

 	case 't': /* Time limit + auto quit */

 	    t = strtod(optarg, NULL);

 	    time_secs = (uint32_t)t;

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

 	    dreamcast_set_run_time( time_secs, time_nanos );

 	    dreamcast_set_exit_on_stop( TRUE );

 	    break;

 	case 'T': /* trace regions */

 	    trace_regions = optarg;

 	    set_global_log_level("trace");

 	    break;

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

         dcload_set_allow_unsafe(TRUE);

         break;

 	case 'v': 

 	    print_version();

 	    exit(0);

 	    break;

     case 'V': /* Video driver */

         display_driver_name = optarg;

         if( strcmp(display_driver_name,"?") == 0 ) {

             print_version();

             print_display_drivers(stdout);

             exit(0);

         }

         break;

 	case 'x': /* Disable translator */

 	    use_xlat = FALSE;

 	    break;

 	}

     }

     lxdream_load_config( );

     gdrom_list_init();

     if( aica_program == NULL ) {

         dreamcast_init();

     } else {

         dreamcast_configure_aica_only();

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

     }

     mem_set_trace( trace_regions, TRUE );

     audio_init_driver( audio_driver_name, 44100, AUDIO_FMT_16ST );

     headless = display_driver_name != NULL && strcasecmp( display_driver_name, "null" ) == 0;

     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_mount_image(argv[optind]);

         if( !ok ) {

             ok = file_load_magic( argv[optind] );

         }

         if( !ok ) {

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

         }

         if( !no_start ) {

             start_immediately = ok;

         }

     }

     if( gdrom_get_current_disc() == NULL ) {

         const gchar *disc_file = lxdream_get_config_value( CONFIG_GDROM );

         if( disc_file != NULL ) {

             gdrom_mount_image( disc_file );

         }

     }

     sh4_set_use_xlat( use_xlat );

     if( headless ) {

         dreamcast_run();

     } else {

         gui_main_loop( start_immediately && dreamcast_can_run() );

     }

     dreamcast_shutdown();

     return 0;

 }