frontend/main.c

   1 /*
   2  * (C) notaz, 2010-2011
   3  *
   4  * This work is licensed under the terms of the GNU GPLv2 or later.
   5  * See the COPYING file in the top-level directory.
   6  */
   7
   8 #include <stdio.h>
   9 #include <string.h>
  10 #include <stdarg.h>
  11 #include <dlfcn.h>
  12 #include <sys/stat.h>
  13 #include <sys/types.h>
  14 #include <unistd.h>
  15 #include <signal.h>
  16
  17 #include "main.h"
  18 #include "plugin.h"
  19 #include "pcnt.h"
  20 #include "menu.h"
  21 #include "../libpcsxcore/misc.h"
  22 #include "../plugins/cdrcimg/cdrcimg.h"
  23 #include "common/plat.h"
  24 #include "common/input.h"
  25
  26 int ready_to_go;
  27 unsigned long gpuDisp;
  28 char cfgfile_basename[MAXPATHLEN];
  29 static char *(*real_getenv)(const char *name);
  30
  31 static void make_path(char *buf, size_t size, const char *dir, const char *fname)
  32 {
  33         if (fname)
  34                 snprintf(buf, size, ".%s%s", dir, fname);
  35         else
  36                 snprintf(buf, size, ".%s", dir);
  37 }
  38 #define MAKE_PATH(buf, dir, fname) \
  39         make_path(buf, sizeof(buf), dir, fname)
  40
  41 static void create_profile_dir(const char *directory) {
  42         char path[MAXPATHLEN];
  43
  44         MAKE_PATH(path, directory, NULL);
  45         mkdir(path, S_IRWXU | S_IRWXG);
  46 }
  47
  48 static void CheckSubDir() {
  49         // make sure that ~/.pcsx exists
  50         create_profile_dir(PCSX_DOT_DIR);
  51
  52         create_profile_dir(BIOS_DIR);
  53         create_profile_dir(MEMCARD_DIR);
  54         create_profile_dir(STATES_DIR);
  55         create_profile_dir(PLUGINS_DIR);
  56         create_profile_dir(PLUGINS_CFG_DIR);
  57         create_profile_dir(CHEATS_DIR);
  58         create_profile_dir(PATCHES_DIR);
  59         create_profile_dir(PCSX_DOT_DIR "cfg");
  60 }
  61
  62 void set_cd_image(const char *fname)
  63 {
  64         const char *ext;
  65         int len;
  66
  67         len = strlen(fname);
  68         ext = fname;
  69         if (len > 2)
  70                 ext = fname + len - 2;
  71
  72         if (strcasecmp(ext, ".z") == 0) {
  73                 SetIsoFile(NULL);
  74                 cdrcimg_set_fname(fname);
  75                 strcpy(Config.Cdr, "builtin_cdrcimg");
  76         } else {
  77                 SetIsoFile(fname);
  78                 strcpy(Config.Cdr, "builtin_cdr");
  79         }
  80 }
  81
  82 int main(int argc, char *argv[])
  83 {
  84         char file[MAXPATHLEN] = "";
  85         char path[MAXPATHLEN];
  86         const char *cdfile = NULL;
  87         int loadst = 0;
  88         void *tmp;
  89         int i;
  90
  91         tmp = dlopen("/lib/libdl.so.2", RTLD_LAZY);
  92         if (tmp == NULL)
  93                 tmp = dlopen("/lib32/libdl.so.2", RTLD_LAZY);
  94         if (tmp != NULL)
  95                 real_getenv = dlsym(tmp, "getenv");
  96         if (real_getenv == NULL) {
  97                 fprintf(stderr, "%s\n", dlerror());
  98                 return 1;
  99         }
 100         dlclose(tmp);
 101
 102         // what is the name of the config file?
 103         // it may be redefined by -cfg on the command line
 104         strcpy(cfgfile_basename, "pcsx.cfg");
 105
 106         emuLog = stdout;
 107         SetIsoFile(NULL);
 108
 109         // read command line options
 110         for (i = 1; i < argc; i++) {
 111                      if (!strcmp(argv[i], "-psxout")) Config.PsxOut = 1;
 112                 else if (!strcmp(argv[i], "-load")) loadst = atol(argv[++i]);
 113                 else if (!strcmp(argv[i], "-cfg")) {
 114                         if (i+1 >= argc) break;
 115                         strncpy(cfgfile_basename, argv[++i], MAXPATHLEN-100);   /* TODO buffer overruns */
 116                         printf("Using config file %s.\n", cfgfile_basename);
 117                 }
 118                 else if (!strcmp(argv[i], "-cdfile")) {
 119                         char isofilename[MAXPATHLEN];
 120
 121                         if (i+1 >= argc) break;
 122                         strncpy(isofilename, argv[++i], MAXPATHLEN);
 123                         if (isofilename[0] != '/') {
 124                                 getcwd(path, MAXPATHLEN);
 125                                 if (strlen(path) + strlen(isofilename) + 1 < MAXPATHLEN) {
 126                                         strcat(path, "/");
 127                                         strcat(path, isofilename);
 128                                         strcpy(isofilename, path);
 129                                 } else
 130                                         isofilename[0] = 0;
 131                         }
 132
 133                         cdfile = isofilename;
 134                 }
 135                 else if (!strcmp(argv[i], "-h") ||
 136                          !strcmp(argv[i], "-help") ||
 137                          !strcmp(argv[i], "--help")) {
 138                          printf(PACKAGE_NAME " " PACKAGE_VERSION "\n");
 139                          printf("%s\n", _(
 140                                                         " pcsx [options] [file]\n"
 141                                                         "\toptions:\n"
 142                                                         "\t-cdfile FILE\tRuns a CD image file\n"
 143                                                         "\t-nogui\t\tDon't open the GTK GUI\n"
 144                                                         "\t-cfg FILE\tLoads desired configuration file (default: ~/.pcsx/pcsx.cfg)\n"
 145                                                         "\t-psxout\t\tEnable PSX output\n"
 146                                                         "\t-load STATENUM\tLoads savestate STATENUM (1-5)\n"
 147                                                         "\t-h -help\tDisplay this message\n"
 148                                                         "\tfile\t\tLoads file\n"));
 149                          return 0;
 150                 } else {
 151                         strncpy(file, argv[i], MAXPATHLEN);
 152                         if (file[0] != '/') {
 153                                 getcwd(path, MAXPATHLEN);
 154                                 if (strlen(path) + strlen(file) + 1 < MAXPATHLEN) {
 155                                         strcat(path, "/");
 156                                         strcat(path, file);
 157                                         strcpy(file, path);
 158                                 } else
 159                                         file[0] = 0;
 160                         }
 161                 }
 162         }
 163
 164         memset(&Config, 0, sizeof(PcsxConfig));
 165         strcpy(Config.Net, "Disabled");
 166
 167         CheckSubDir();
 168
 169         MAKE_PATH(Config.Mcd1, MEMCARD_DIR, "card1.mcd");
 170         MAKE_PATH(Config.Mcd2, MEMCARD_DIR, "card2.mcd");
 171         strcpy(Config.Bios, "HLE");
 172         strcpy(Config.BiosDir, "./");
 173
 174         strcpy(Config.PluginsDir, "plugins");
 175         strcpy(Config.Gpu, "builtin_gpu");
 176         strcpy(Config.Spu, "builtin_spu");
 177         strcpy(Config.Cdr, "builtin_cdr");
 178         strcpy(Config.Pad1, "builtin_pad");
 179         strcpy(Config.Pad2, "builtin_pad");
 180         Config.PsxAuto = 1;
 181
 182         snprintf(Config.PatchesDir, sizeof(Config.PatchesDir), "." PATCHES_DIR);
 183 /*
 184         // switch to plugin dotdir
 185         // this lets plugins work without modification!
 186         gchar *plugin_default_dir = g_build_filename(getenv("HOME"), PLUGINS_DIR, NULL);
 187         chdir(plugin_default_dir);
 188         g_free(plugin_default_dir);
 189 */
 190
 191         if (cdfile)
 192                 set_cd_image(cdfile);
 193
 194         if (SysInit() == -1)
 195                 return 1;
 196
 197         // frontend stuff
 198         in_init();
 199         in_probe();
 200         plat_init();
 201         menu_init();
 202
 203         if (LoadPlugins() == -1) {
 204                 SysMessage("Failed loading plugins!");
 205                 return 1;
 206         }
 207         pcnt_hook_plugins();
 208
 209         if (OpenPlugins() == -1) {
 210                 return 1;
 211         }
 212         plugin_call_rearmed_cbs();
 213
 214         CheckCdrom();
 215         SysReset();
 216
 217         if (file[0] != '\0') {
 218                 if (Load(file) != -1)
 219                         ready_to_go = 1;
 220         } else {
 221                 if (cdfile) {
 222                         if (LoadCdrom() == -1) {
 223                                 ClosePlugins();
 224                                 printf(_("Could not load CD-ROM!\n"));
 225                                 return -1;
 226                         }
 227                         ready_to_go = 1;
 228                 }
 229         }
 230
 231         // If a state has been specified, then load that
 232         if (loadst) {
 233                 char state_filename[MAXPATHLEN];
 234                 int ret = get_state_filename(state_filename, sizeof(state_filename), loadst - 1);
 235                 if (ret == 0)
 236                         ret = LoadState(state_filename);
 237                 printf("%s state %s\n", ret ? "failed to load" : "loaded", state_filename);
 238         }
 239
 240         if (ready_to_go)
 241                 menu_prepare_emu();
 242         else
 243                 menu_loop();
 244
 245         while (1)
 246         {
 247                 psxCpu->Execute();
 248                 menu_loop();
 249         }
 250
 251         return 0;
 252 }
 253
 254 int SysInit() {
 255         if (EmuInit() == -1) {
 256                 printf("PSX emulator couldn't be initialized.\n");
 257                 return -1;
 258         }
 259
 260         LoadMcds(Config.Mcd1, Config.Mcd2);     /* TODO Do we need to have this here, or in the calling main() function?? */
 261
 262         if (Config.Debug) {
 263                 StartDebugger();
 264         }
 265
 266         return 0;
 267 }
 268
 269 void SysRunGui() {
 270         printf("SysRunGui\n");
 271 }
 272
 273 void StartGui() {
 274         printf("StartGui\n");
 275 }
 276
 277 void SysReset() {
 278         EmuReset();
 279
 280         // hmh core forgets this
 281         CDR_stop();
 282 }
 283
 284 void SysClose() {
 285         EmuShutdown();
 286         ReleasePlugins();
 287
 288         StopDebugger();
 289
 290         if (emuLog != NULL) fclose(emuLog);
 291 }
 292
 293 void SysUpdate() {
 294 }
 295
 296 void OnFile_Exit() {
 297         printf("OnFile_Exit\n");
 298         menu_finish();
 299         plat_finish();
 300         SysClose();
 301         exit(0);
 302 }
 303
 304 int get_state_filename(char *buf, int size, int i) {
 305         char trimlabel[33];
 306         int j;
 307
 308         strncpy(trimlabel, CdromLabel, 32);
 309         trimlabel[32] = 0;
 310         for (j = 31; j >= 0; j--)
 311                 if (trimlabel[j] == ' ')
 312                         trimlabel[j] = 0;
 313                 else
 314                         continue;
 315
 316         snprintf(buf, size, "." STATES_DIR "%.32s-%.9s.%3.3d",
 317                 trimlabel, CdromId, i);
 318
 319         return 0;
 320 }
 321
 322 void SysPrintf(const char *fmt, ...) {
 323         va_list list;
 324         char msg[512];
 325
 326         va_start(list, fmt);
 327         vsprintf(msg, fmt, list);
 328         va_end(list);
 329
 330         fprintf(emuLog, "%s", msg);
 331 }
 332
 333 void SysMessage(const char *fmt, ...) {
 334         va_list list;
 335         char msg[512];
 336
 337         va_start(list, fmt);
 338         vsprintf(msg, fmt, list);
 339         va_end(list);
 340
 341         if (msg[strlen(msg) - 1] == '\n')
 342                 msg[strlen(msg) - 1] = 0;
 343
 344         fprintf(stderr, "%s\n", msg);
 345 }
 346
 347 static void SignalExit(int sig) {
 348         ClosePlugins();
 349         OnFile_Exit();
 350 }
 351
 352 #define PARSEPATH(dst, src) \
 353         ptr = src + strlen(src); \
 354         while (*ptr != '\\' && ptr != src) ptr--; \
 355         if (ptr != src) { \
 356                 strcpy(dst, ptr+1); \
 357         }
 358
 359 static int _OpenPlugins(void) {
 360         int ret;
 361
 362         signal(SIGINT, SignalExit);
 363         signal(SIGPIPE, SignalExit);
 364
 365         GPU_clearDynarec(clearDynarec);
 366
 367         ret = CDR_open();
 368         if (ret < 0) { SysMessage(_("Error opening CD-ROM plugin!")); return -1; }
 369         ret = SPU_open();
 370         if (ret < 0) { SysMessage(_("Error opening SPU plugin!")); return -1; }
 371         SPU_registerCallback(SPUirq);
 372         // pcsx-rearmed: we handle gpu elsewhere
 373         //ret = GPU_open(&gpuDisp, "PCSX", NULL);
 374         //if (ret < 0) { SysMessage(_("Error opening GPU plugin!")); return -1; }
 375         ret = PAD1_open(&gpuDisp);
 376         if (ret < 0) { SysMessage(_("Error opening Controller 1 plugin!")); return -1; }
 377         ret = PAD2_open(&gpuDisp);
 378         if (ret < 0) { SysMessage(_("Error opening Controller 2 plugin!")); return -1; }
 379
 380         if (Config.UseNet && !NetOpened) {
 381                 netInfo info;
 382                 char path[MAXPATHLEN];
 383                 char dotdir[MAXPATHLEN];
 384
 385                 MAKE_PATH(dotdir, "/.pcsx/plugins/", NULL);
 386
 387                 strcpy(info.EmuName, "PCSX " PACKAGE_VERSION);
 388                 strncpy(info.CdromID, CdromId, 9);
 389                 strncpy(info.CdromLabel, CdromLabel, 9);
 390                 info.psxMem = psxM;
 391                 info.GPU_showScreenPic = GPU_showScreenPic;
 392                 info.GPU_displayText = GPU_displayText;
 393                 info.GPU_showScreenPic = GPU_showScreenPic;
 394                 info.PAD_setSensitive = PAD1_setSensitive;
 395                 sprintf(path, "%s%s", Config.BiosDir, Config.Bios);
 396                 strcpy(info.BIOSpath, path);
 397                 strcpy(info.MCD1path, Config.Mcd1);
 398                 strcpy(info.MCD2path, Config.Mcd2);
 399                 sprintf(path, "%s%s", dotdir, Config.Gpu);
 400                 strcpy(info.GPUpath, path);
 401                 sprintf(path, "%s%s", dotdir, Config.Spu);
 402                 strcpy(info.SPUpath, path);
 403                 sprintf(path, "%s%s", dotdir, Config.Cdr);
 404                 strcpy(info.CDRpath, path);
 405                 NET_setInfo(&info);
 406
 407                 ret = NET_open(&gpuDisp);
 408                 if (ret < 0) {
 409                         if (ret == -2) {
 410                                 // -2 is returned when something in the info
 411                                 // changed and needs to be synced
 412                                 char *ptr;
 413
 414                                 PARSEPATH(Config.Bios, info.BIOSpath);
 415                                 PARSEPATH(Config.Gpu,  info.GPUpath);
 416                                 PARSEPATH(Config.Spu,  info.SPUpath);
 417                                 PARSEPATH(Config.Cdr,  info.CDRpath);
 418
 419                                 strcpy(Config.Mcd1, info.MCD1path);
 420                                 strcpy(Config.Mcd2, info.MCD2path);
 421                                 return -2;
 422                         } else {
 423                                 Config.UseNet = FALSE;
 424                         }
 425                 } else {
 426                         if (NET_queryPlayer() == 1) {
 427                                 if (SendPcsxInfo() == -1) Config.UseNet = FALSE;
 428                         } else {
 429                                 if (RecvPcsxInfo() == -1) Config.UseNet = FALSE;
 430                         }
 431                 }
 432                 NetOpened = TRUE;
 433         } else if (Config.UseNet) {
 434                 NET_resume();
 435         }
 436
 437         return 0;
 438 }
 439
 440 int OpenPlugins() {
 441         int ret;
 442
 443         while ((ret = _OpenPlugins()) == -2) {
 444                 ReleasePlugins();
 445                 LoadMcds(Config.Mcd1, Config.Mcd2);
 446                 if (LoadPlugins() == -1) return -1;
 447         }
 448         return ret;
 449 }
 450
 451 void ClosePlugins() {
 452         int ret;
 453
 454         signal(SIGINT, SIG_DFL);
 455         signal(SIGPIPE, SIG_DFL);
 456         ret = CDR_close();
 457         if (ret < 0) { SysMessage(_("Error closing CD-ROM plugin!")); return; }
 458         ret = SPU_close();
 459         if (ret < 0) { SysMessage(_("Error closing SPU plugin!")); return; }
 460         ret = PAD1_close();
 461         if (ret < 0) { SysMessage(_("Error closing Controller 1 Plugin!")); return; }
 462         ret = PAD2_close();
 463         if (ret < 0) { SysMessage(_("Error closing Controller 2 plugin!")); return; }
 464         // pcsx-rearmed: we handle gpu elsewhere
 465         //ret = GPU_close();
 466         //if (ret < 0) { SysMessage(_("Error closing GPU plugin!")); return; }
 467
 468         if (Config.UseNet) {
 469                 NET_pause();
 470         }
 471 }
 472
 473 #if 1
 474 /* this is to avoid having to hack every plugin to stop using $HOME */
 475 char *getenv(const char *name)
 476 {
 477         static char ret[8] = ".";
 478
 479         if (name && strcmp(name, "HOME") == 0 &&
 480                         ((int)name >> 28) == 0) // HACK: let libs find home
 481                 return ret;
 482
 483         return real_getenv(name);
 484 }
 485 #endif
 486
 487 /* we hook statically linked plugins here */
 488 static const char *builtin_plugins[] = {
 489         "builtin_gpu", "builtin_spu", "builtin_cdr", "builtin_pad",
 490         "builtin_cdrcimg",
 491 };
 492
 493 static const int builtin_plugin_ids[] = {
 494         PLUGIN_GPU, PLUGIN_SPU, PLUGIN_CDR, PLUGIN_PAD,
 495         PLUGIN_CDRCIMG,
 496 };
 497
 498 void *SysLoadLibrary(const char *lib) {
 499         const char *tmp = strrchr(lib, '/');
 500         void *ret;
 501         int i;
 502
 503         printf("plugin: %s\n", lib);
 504
 505         if (tmp != NULL) {
 506                 tmp++;
 507                 for (i = 0; i < ARRAY_SIZE(builtin_plugins); i++)
 508                         if (strcmp(tmp, builtin_plugins[i]) == 0)
 509                                 return (void *)(long)(PLUGIN_DL_BASE + builtin_plugin_ids[i]);
 510         }
 511
 512 #if defined(__x86_64__) || defined(__i386__)
 513         // convenience hack
 514         char name[MAXPATHLEN];
 515         snprintf(name, sizeof(name), "%s.x86", lib);
 516         lib = name;
 517 #endif
 518
 519         ret = dlopen(lib, RTLD_NOW);
 520         if (ret == NULL)
 521                 fprintf(stderr, "dlopen: %s\n", dlerror());
 522         return ret;
 523 }
 524
 525 void *SysLoadSym(void *lib, const char *sym) {
 526         unsigned int plugid = (unsigned int)(long)lib;
 527
 528         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 529                 return plugin_link(plugid - PLUGIN_DL_BASE, sym);
 530
 531         return dlsym(lib, sym);
 532 }
 533
 534 const char *SysLibError() {
 535         return dlerror();
 536 }
 537
 538 void SysCloseLibrary(void *lib) {
 539         unsigned int plugid = (unsigned int)(long)lib;
 540
 541         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 542                 return;
 543
 544         dlclose(lib);
 545 }
 546