main.c

   1 #undef _GNU_SOURCE
   2 #define _GNU_SOURCE
   3 #include <string.h>
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6
   7 #include <stdarg.h>
   8 #include <signal.h>
   9
  10 #include "input.h"
  11 #include "rc.h"
  12 #include "sys.h"
  13 #include "rckeys.h"
  14 #include "emu.h"
  15 #include "exports.h"
  16 #include "loader.h"
  17 #include "mem.h"
  18 #include "menu.h"
  19
  20 #include "Version"
  21
  22 #ifdef __psp__
  23 #include <pspmoduleinfo.h>
  24 #include <pspthreadman.h>
  25 PSP_MODULE_INFO("GnuBoy", 0, 1, 0);
  26 PSP_MAIN_THREAD_ATTR(THREAD_ATTR_VFPU | THREAD_ATTR_USER);
  27 #endif
  28
  29
  30 static char *defaultconfig[] =
  31 {
  32         "bootrom_dmg \"\"",
  33         "bootrom_gbc \"\"",
  34         "bind esc quit",
  35         "bind up +up",
  36         "bind down +down",
  37         "bind left +left",
  38         "bind right +right",
  39         "bind d +a",
  40         "bind s +b",
  41         "bind enter +start",
  42         "bind space +select",
  43         "bind tab +select",
  44         "bind joyup +up",
  45         "bind joydown +down",
  46         "bind joyleft +left",
  47         "bind joyright +right",
  48         "bind joy0 +b",
  49         "bind joy1 +a",
  50         "bind joy2 +select",
  51         "bind joy3 +start",
  52         "bind 1 \"set saveslot 1\"",
  53         "bind 2 \"set saveslot 2\"",
  54         "bind 3 \"set saveslot 3\"",
  55         "bind 4 \"set saveslot 4\"",
  56         "bind 5 \"set saveslot 5\"",
  57         "bind 6 \"set saveslot 6\"",
  58         "bind 7 \"set saveslot 7\"",
  59         "bind 8 \"set saveslot 8\"",
  60         "bind 9 \"set saveslot 9\"",
  61         "bind 0 \"set saveslot 0\"",
  62         "bind ins savestate",
  63         "bind del loadstate",
  64         "set romdir .",
  65         "source gnuboy.rc",
  66         NULL
  67 };
  68
  69
  70 static void banner()
  71 {
  72         printf("\ngnuboy " VERSION "\n");
  73 }
  74
  75 static void copyright()
  76 {
  77         banner();
  78         printf(
  79 "Copyright (C) 2000-2001 Laguna and Gilgamesh\n"
  80 "Portions contributed by other authors; see CREDITS for details.\n"
  81 "\n"
  82 "This program is free software; you can redistribute it and/or modify\n"
  83 "it under the terms of the GNU General Public License as published by\n"
  84 "the Free Software Foundation; either version 2 of the License, or\n"
  85 "(at your option) any later version.\n"
  86 "\n"
  87 "This program is distributed in the hope that it will be useful,\n"
  88 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
  89 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
  90 "GNU General Public License for more details.\n"
  91 "\n"
  92 "You should have received a copy of the GNU General Public License\n"
  93 "along with this program; if not, write to the Free Software\n"
  94 "Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n"
  95 "\n");
  96 }
  97
  98 static void usage(char *name)
  99 {
 100         copyright();
 101         printf("Type %s --help for detailed help.\n\n", name);
 102         exit(1);
 103 }
 104
 105 static void copying()
 106 {
 107         copyright();
 108         exit(0);
 109 }
 110
 111 static void joytest()
 112 {
 113         event_t e;
 114         char *ename, *kname;
 115         printf("press joystick buttons to see their name mappings\n");
 116         joy_init();
 117         while(1) {
 118                 ev_poll(0);
 119                 if(ev_getevent(&e)) {
 120                         switch(e.type) {
 121                         case EV_NONE: ename = "none"; break;
 122                         case EV_PRESS: ename = "press"; break;
 123                         case EV_RELEASE: ename = "release"; break;
 124                         case EV_REPEAT: ename = "repeat"; break;
 125                         case EV_MOUSE: ename = "mouse"; break;
 126                         default: ename = "unknown";
 127                         };
 128                         kname = k_keyname(e.code);
 129                         printf("%s: %s\n", ename, kname ? kname : "<null>");
 130                 } else {
 131                         sys_sleep(300);
 132                 }
 133         }
 134         joy_close();
 135         exit(0);
 136 }
 137
 138 static void help(char *name)
 139 {
 140         banner();
 141         printf("Usage: %s [options] romfile\n", name);
 142         printf("\n"
 143 "      --source FILE             read rc commands from FILE\n"
 144 "      --bind KEY COMMAND        bind KEY to perform COMMAND\n"
 145 "      --VAR=VALUE               set rc variable VAR to VALUE\n"
 146 "      --VAR                     set VAR to 1 (turn on boolean options)\n"
 147 "      --no-VAR                  set VAR to 0 (turn off boolean options)\n"
 148 "      --showvars                list all available rc variables\n"
 149 "      --help                    display this help and exit\n"
 150 "      --version                 output version information and exit\n"
 151 "      --copying                 show copying permissions\n"
 152 "      --joytest                 init joystick and show button names pressed\n"
 153 "      --rominfo                 show some info about the rom\n"
 154 "");
 155         exit(0);
 156 }
 157
 158 static void rominfo(char* fn) {
 159         extern int rom_load_simple(char *fn);
 160         if(rom_load_simple(fn)) {
 161                 fprintf(stderr, "rom load failed: %s\n", loader_get_error()?loader_get_error():"");
 162                 exit(1);
 163         }
 164         printf( "rom name:\t%s\n"
 165                 "mbc type:\t%s\n"
 166                 "rom size:\t%u KB\n"
 167                 "ram size:\t%u KB\n"
 168                 , rom.name, mbc_to_string(mbc.type), mbc.romsize*16, mbc.ramsize*8);
 169         exit(0);
 170 }
 171
 172 static void version(char *name)
 173 {
 174         printf("%s-" VERSION "\n", name);
 175         exit(0);
 176 }
 177
 178
 179 void doevents()
 180 {
 181         event_t ev;
 182         int st;
 183
 184         ev_poll(0);
 185         while (ev_getevent(&ev))
 186         {
 187                 if (ev.type != EV_PRESS && ev.type != EV_RELEASE)
 188                         continue;
 189                 st = (ev.type != EV_RELEASE);
 190                 rc_dokey(ev.code, st);
 191         }
 192 }
 193
 194
 195
 196
 197 static void shutdown()
 198 {
 199         joy_close();
 200         vid_close();
 201         pcm_close();
 202 }
 203
 204 void die(char *fmt, ...)
 205 {
 206         va_list ap;
 207
 208         va_start(ap, fmt);
 209         vfprintf(stderr, fmt, ap);
 210         va_end(ap);
 211         exit(1);
 212 }
 213
 214 static int bad_signals[] =
 215 {
 216         /* These are all standard, so no need to #ifdef them... */
 217         SIGINT, SIGSEGV, SIGTERM, SIGFPE, SIGABRT, SIGILL,
 218 #ifdef SIGQUIT
 219         SIGQUIT,
 220 #endif
 221 #ifdef SIGPIPE
 222         SIGPIPE,
 223 #endif
 224         0
 225 };
 226
 227 static void fatalsignal(int s)
 228 {
 229         die("Signal %d\n", s);
 230 }
 231
 232 static void catch_signals()
 233 {
 234         int i;
 235         for (i = 0; bad_signals[i]; i++)
 236                 signal(bad_signals[i], fatalsignal);
 237 }
 238
 239
 240
 241 static char *base(char *s)
 242 {
 243         char *p;
 244         p = strrchr(s, '/');
 245         if (p) return p+1;
 246         return s;
 247 }
 248
 249 int load_rom_and_rc(char *rom) {
 250         char *s, *cmd = malloc(strlen(rom) + 11);
 251         sprintf(cmd, "source %s", rom);
 252         s = strchr(cmd, '.');
 253         if (s) *s = 0;
 254         strcat(cmd, ".rc");
 255         rc_command(cmd);
 256         free(cmd);
 257         rom = strdup(rom);
 258         sys_sanitize(rom);
 259         if(loader_init(rom)) {
 260                 /*loader_get_error();*/
 261                 return -1;
 262         }
 263         emu_reset();
 264         return 0;
 265 }
 266
 267
 268 int main(int argc, char *argv[])
 269 {
 270         int i, ri = 0, sv = 0;
 271         char *opt, *arg, *cmd, *s, *rom = 0;
 272
 273         /* Avoid initializing video if we don't have to */
 274         for (i = 1; i < argc; i++)
 275         {
 276                 if (!strcmp(argv[i], "--help"))
 277                         help(base(argv[0]));
 278                 else if (!strcmp(argv[i], "--version"))
 279                         version(base(argv[0]));
 280                 else if (!strcmp(argv[i], "--copying"))
 281                         copying();
 282                 else if (!strcmp(argv[i], "--bind")) i += 2;
 283                 else if (!strcmp(argv[i], "--source")) i++;
 284                 else if (!strcmp(argv[i], "--showvars")) sv = 1;
 285                 else if (!strcmp(argv[i], "--joytest"))
 286                         joytest();
 287                 else if (!strcmp(argv[i], "--rominfo")) ri = 1;
 288                 else if (argv[i][0] == '-' && argv[i][1] == '-');
 289                 else if (argv[i][0] == '-' && argv[i][1]);
 290                 else rom = argv[i];
 291         }
 292
 293         if (ri && !rom) usage(base(argv[0]));
 294         if (ri) rominfo(rom);
 295
 296         /* If we have special perms, drop them ASAP! */
 297         vid_preinit();
 298
 299         init_exports();
 300
 301         s = strdup(argv[0]);
 302         sys_sanitize(s);
 303         sys_initpath(s);
 304
 305         for (i = 0; defaultconfig[i]; i++)
 306                 rc_command(defaultconfig[i]);
 307
 308         if (sv) {
 309                 show_exports();
 310                 exit(0);
 311         }
 312
 313         for (i = 1; i < argc; i++)
 314         {
 315                 if (!strcmp(argv[i], "--bind"))
 316                 {
 317                         if (i + 2 >= argc) die("missing arguments to bind\n");
 318                         cmd = malloc(strlen(argv[i+1]) + strlen(argv[i+2]) + 9);
 319                         sprintf(cmd, "bind %s \"%s\"", argv[i+1], argv[i+2]);
 320                         rc_command(cmd);
 321                         free(cmd);
 322                         i += 2;
 323                 }
 324                 else if (!strcmp(argv[i], "--source"))
 325                 {
 326                         if (i + 1 >= argc) die("missing argument to source\n");
 327                         cmd = malloc(strlen(argv[i+1]) + 6);
 328                         sprintf(cmd, "source %s", argv[++i]);
 329                         rc_command(cmd);
 330                         free(cmd);
 331                 }
 332                 else if (!strncmp(argv[i], "--no-", 5))
 333                 {
 334                         opt = strdup(argv[i]+5);
 335                         while ((s = strchr(opt, '-'))) *s = '_';
 336                         cmd = malloc(strlen(opt) + 7);
 337                         sprintf(cmd, "set %s 0", opt);
 338                         rc_command(cmd);
 339                         free(cmd);
 340                         free(opt);
 341                 }
 342                 else if (argv[i][0] == '-' && argv[i][1] == '-')
 343                 {
 344                         opt = strdup(argv[i]+2);
 345                         if ((s = strchr(opt, '=')))
 346                         {
 347                                 *s = 0;
 348                                 arg = s+1;
 349                         }
 350                         else arg = "1";
 351                         while ((s = strchr(opt, '-'))) *s = '_';
 352                         while ((s = strchr(arg, ','))) *s = ' ';
 353
 354                         cmd = malloc(strlen(opt) + strlen(arg) + 6);
 355                         sprintf(cmd, "set %s %s", opt, arg);
 356
 357                         rc_command(cmd);
 358                         free(cmd);
 359                         free(opt);
 360                 }
 361                 /* short options not yet implemented */
 362                 else if (argv[i][0] == '-' && argv[i][1]);
 363         }
 364
 365         /* FIXME - make interface modules responsible for atexit() */
 366         atexit(shutdown);
 367         catch_signals();
 368         vid_init();
 369         joy_init();
 370         pcm_init();
 371         menu_init();
 372
 373         if(rom) load_rom_and_rc(rom);
 374         else {
 375                 rc_command("bind esc menu");
 376                 menu_initpage(mp_romsel);
 377                 menu_enter();
 378         }
 379         while(1) {
 380                 emu_run();
 381                 /* if we get here it means emu was paused, so enter menu. */
 382                 pcm_pause(1);
 383                 menu_initpage(mp_main);
 384                 menu_enter();
 385                 pcm_pause(0);
 386                 emu_pause(0);
 387         }
 388
 389         /* never reached */
 390         return 0;
 391 }
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