/**

  * $Id$

  *

  * 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 <libisofs.h>

 #include "lxdream.h"

 #include "lxpaths.h"

 #include "gettext.h"

 #include "dream.h"

 #include "dreamcast.h"

 #include "display.h"

 #include "gui.h"

 #include "gdlist.h"

 #include "hotkeys.h"

 #include "loader.h"

 #include "mem.h"

 #include "plugin.h"

 #include "serial.h"

 #include "syscall.h"

 #include "aica/audio.h"

 #include "aica/armdasm.h"

 #include "gdrom/gdrom.h"

 #include "maple/maple.h"

 #include "pvr2/glutil.h"

 #include "sh4/sh4.h"

 #include "vmu/vmulist.h"

 #define GL_INFO_OPT 1

 char *option_list = "a:A:bc:e:dfg:G:hHl:m:npt:T:uvV:xX?";

 struct option longopts[] = {

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

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

         { "biosless", no_argument, NULL, 'b' },

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

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

         { "execute", required_argument, NULL, 'e' },

         { "fullscreen", no_argument, NULL, 'f' },

         { "gdb-sh4", required_argument, NULL, 'g' },  

         { "gdb-arm", required_argument, NULL, 'G' },

         { "gl-info", no_argument, NULL, GL_INFO_OPT },

         { "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' },

         { "shadow", no_argument, NULL, 'X' },

         { "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;

 char *sh4_gdb_port = NULL;

 char *arm_gdb_port = NULL;

 gboolean start_immediately = FALSE;

 gboolean no_start = FALSE;

 gboolean headless = FALSE;

 sh4core_t sh4_core = SH4_TRANSLATE;

 gboolean show_debugger = FALSE;

 gboolean show_fullscreen = FALSE;

 gboolean use_bootrom = TRUE;

 extern uint32_t sh4_cpu_multiplier;

 static void print_version()

 {

     printf( "lxdream %s\n", lxdream_full_version );

 }

 static void print_usage()

 {

     print_version();

     printf( "Usage: lxdream %s [options] [disc-file] [save-state]\n\n", lxdream_full_version );

     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( "   -b, --biosless         %s\n", _("Run without the BIOS boot rom even if available") );

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

     printf( "   -e, --execute=PROGRAM  %s\n", _("Load and execute the given SH4 program") );

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

     printf( "   -f, --fullscreen       %s\n", _("Start in fullscreen mode") );

     printf( "   -g, --gdb-sh4=PORT     %s\n", _("Start GDB remote server on PORT for SH4") );

     printf( "   -G, --gdb-arm=PORT     %s\n", _("Start GDB remote server on PORT for ARM") );

     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") );

     printf( "   -X                     %s\n", _("Run both SH4 interpreter and translator") );

 }

 static void bind_gettext_domain()

 {

 #ifdef ENABLE_NLS

     bindtextdomain( PACKAGE, get_locale_path() );

     textdomain(PACKAGE);

 #endif

 }

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

 {

     int opt;

     double t;

     gboolean display_ok, have_disc = FALSE, have_save = FALSE, have_exec = FALSE;

     gboolean print_glinfo = FALSE;

     uint32_t time_secs, time_nanos;

     const char *exec_name = NULL;

     install_crash_handler();

     bind_gettext_domain();

     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;

             break;

         case 'b': /* No Boot rom */

             use_bootrom = FALSE;

         case 'c': /* Config file */

             lxdream_set_config_filename(optarg);

             break;

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

             show_debugger = TRUE;

             break;

         case 'e':

             exec_name = optarg;

             break;

         case 'f':

             show_fullscreen = TRUE;

             break;

         case 'g':

             sh4_gdb_port = optarg;

             break;

         case 'G':

             arm_gdb_port = optarg;

             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;

             break;

         case 'x': /* Disable translator */

             sh4_core = SH4_INTERPRET;

             break;

         case 'X': /* Shadow translator */

             sh4_core = SH4_SHADOW;

             break;

         case GL_INFO_OPT:

             print_glinfo = TRUE;

             break;

         }

     }

 #ifdef ENABLE_SHARED

     plugin_init();

 #endif

     lxdream_make_config_dir( );

     lxdream_load_config( );

     if( audio_driver_name != NULL && strcmp(audio_driver_name, "?") == 0 ) {

         print_version();

         print_audio_drivers(stdout);

         exit(0);

     }

     if( display_driver_name != NULL && strcmp(display_driver_name,"?") == 0 ) {

         print_version();

         print_display_drivers(stdout);

         exit(0);

     }

     if( print_glinfo ) {

         gui_init(FALSE, FALSE);

         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);

         } else if( display_driver->capabilities.has_gl == FALSE ) {

             ERROR( "Video driver '%s' has no GL capabilities.", display_driver_name );

             exit(2);

         }

         glPrintInfo(stdout);

         exit(0);

     }

     iso_init();

     gdrom_list_init();

     vmulist_init();

     if( aica_program == NULL ) {

         dreamcast_init(use_bootrom);

     } 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 );

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

     if( headless ) {

         display_set_driver( &display_null_driver );

     } else {

         gui_init(show_debugger, show_fullscreen);

         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);

         }

     }

     hotkeys_init();

     serial_init();

     maple_reattach_all();

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

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

         ERROR err;

         lxdream_file_type_t type = file_identify(argv[optind], -1, &err);

         if( type == FILE_SAVE_STATE ) {

             if( have_save ) {

                 ERROR( "Multiple save states given on command-line, ignoring %s", argv[optind] );

             } else {

                 have_save = dreamcast_load_state(argv[optind]);

                 if( !have_save )

                     no_start = TRUE;

             }

         } else {

             if( have_disc ) {

                 ERROR( "Multiple GD-ROM discs given on command-line, ignoring %s", argv[optind] );

             } else {

                 have_disc = gdrom_mount_image(argv[optind], &err);

                 if( !have_disc ) {

                     ERROR( err.msg );

                     no_start = TRUE;

                 }

             }

         }

     }

     if( exec_name != NULL ) {

         ERROR err;

         if( have_save ) {

             ERROR( "Both a save state and an executable were specified, ignoring %s", exec_name );

         } else {

             have_exec = file_load_exec( exec_name, &err );

             if( !have_exec ) {

                 ERROR( err.msg );

                 no_start = TRUE;

             }

         }

     }

     if( !no_start && (have_exec || have_disc || have_save) ) {

         start_immediately = TRUE;

     }

     if( gdrom_get_current_disc() == NULL ) {

         ERROR err;

         gchar *disc_file = lxdream_get_global_config_path_value( CONFIG_GDROM );

         if( disc_file != NULL ) {

             gboolean ok = gdrom_mount_image( disc_file, &err );

             g_free(disc_file);

             if( !ok ) {

                 WARN( err.msg );

             }

         }

     }

     sh4_set_core( sh4_core );

     /* If requested, start the gdb server immediately before we go into the main

      * loop.

      */

     if( sh4_gdb_port != NULL ) {

         gdb_init_server( NULL, strtol(sh4_gdb_port,NULL,0), &sh4_cpu_desc, TRUE );

     }

     if( arm_gdb_port != NULL ) {

         gdb_init_server( NULL, strtol(arm_gdb_port,NULL,0), &arm_cpu_desc, TRUE );

     }

     if( headless ) {

         dreamcast_run();

     } else {

         gui_main_loop( start_immediately && dreamcast_can_run() );

     }

     dreamcast_shutdown();

     return 0;

 }