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 "plugin_lib.h"
  20 #include "pcnt.h"
  21 #include "menu.h"
  22 #include "../libpcsxcore/misc.h"
  23 #include "../libpcsxcore/new_dynarec/new_dynarec.h"
  24 #include "../plugins/cdrcimg/cdrcimg.h"
  25 #include "common/plat.h"
  26 #include "common/input.h"
  27
  28 int ready_to_go;
  29 unsigned long gpuDisp;
  30 char cfgfile_basename[MAXPATHLEN];
  31 static char *(*real_getenv)(const char *name);
  32 int state_slot;
  33 enum sched_action emu_action, emu_action_old;
  34 char hud_msg[64];
  35 int hud_new_msg;
  36
  37 // from softgpu plugin
  38 extern int UseFrameSkip;
  39
  40 static void make_path(char *buf, size_t size, const char *dir, const char *fname)
  41 {
  42         if (fname)
  43                 snprintf(buf, size, ".%s%s", dir, fname);
  44         else
  45                 snprintf(buf, size, ".%s", dir);
  46 }
  47 #define MAKE_PATH(buf, dir, fname) \
  48         make_path(buf, sizeof(buf), dir, fname)
  49
  50 static void create_profile_dir(const char *directory) {
  51         char path[MAXPATHLEN];
  52
  53         MAKE_PATH(path, directory, NULL);
  54         mkdir(path, S_IRWXU | S_IRWXG);
  55 }
  56
  57 static void CheckSubDir() {
  58         // make sure that ~/.pcsx exists
  59         create_profile_dir(PCSX_DOT_DIR);
  60
  61         create_profile_dir(BIOS_DIR);
  62         create_profile_dir(MEMCARD_DIR);
  63         create_profile_dir(STATES_DIR);
  64         create_profile_dir(PLUGINS_DIR);
  65         create_profile_dir(PLUGINS_CFG_DIR);
  66         create_profile_dir(CHEATS_DIR);
  67         create_profile_dir(PATCHES_DIR);
  68         create_profile_dir(PCSX_DOT_DIR "cfg");
  69 }
  70
  71 void set_cd_image(const char *fname)
  72 {
  73         const char *ext = NULL;
  74
  75         if (fname != NULL)
  76                 ext = strrchr(fname, '.');
  77
  78         if (ext && (
  79             strcasecmp(ext, ".z") == 0 || strcasecmp(ext, ".bz") == 0 ||
  80             strcasecmp(ext, ".znx") == 0 || strcasecmp(ext, ".pbp") == 0)) {
  81                 SetIsoFile(NULL);
  82                 cdrcimg_set_fname(fname);
  83                 strcpy(Config.Cdr, "builtin_cdrcimg");
  84         } else {
  85                 SetIsoFile(fname);
  86                 strcpy(Config.Cdr, "builtin_cdr");
  87         }
  88 }
  89
  90 static void set_default_paths(void)
  91 {
  92         MAKE_PATH(Config.Mcd1, MEMCARD_DIR, "card1.mcd");
  93         MAKE_PATH(Config.Mcd2, MEMCARD_DIR, "card2.mcd");
  94         strcpy(Config.BiosDir, "bios");
  95
  96         strcpy(Config.PluginsDir, "plugins");
  97         strcpy(Config.Gpu, "builtin_gpu");
  98         strcpy(Config.Spu, "builtin_spu");
  99         strcpy(Config.Cdr, "builtin_cdr");
 100         strcpy(Config.Pad1, "builtin_pad");
 101         strcpy(Config.Pad2, "builtin_pad");
 102         strcpy(Config.Net, "Disabled");
 103         Config.PsxAuto = 1;
 104
 105         snprintf(Config.PatchesDir, sizeof(Config.PatchesDir), "." PATCHES_DIR);
 106 }
 107
 108 void do_emu_action(void)
 109 {
 110         int ret;
 111
 112         emu_action_old = emu_action;
 113
 114         switch (emu_action) {
 115         case SACTION_NONE:
 116                 return;
 117         case SACTION_ENTER_MENU:
 118                 menu_loop();
 119                 return;
 120         case SACTION_LOAD_STATE:
 121                 ret = emu_load_state(state_slot);
 122                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "LOADED" : "FAIL!");
 123                 break;
 124         case SACTION_SAVE_STATE:
 125                 ret = emu_save_state(state_slot);
 126                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "SAVED" : "FAIL!");
 127                 break;
 128         case SACTION_NEXT_SSLOT:
 129                 state_slot++;
 130                 if (state_slot > 9)
 131                         state_slot = 0;
 132                 goto do_state_slot;
 133         case SACTION_PREV_SSLOT:
 134                 state_slot--;
 135                 if (state_slot < 0)
 136                         state_slot = 9;
 137                 goto do_state_slot;
 138         case SACTION_TOGGLE_FSKIP:
 139                 UseFrameSkip ^= 1;
 140                 snprintf(hud_msg, sizeof(hud_msg), "FRAMESKIP %s",
 141                         UseFrameSkip ? "ON" : "OFF");
 142                 break;
 143         }
 144         hud_new_msg = 3;
 145         return;
 146
 147 do_state_slot:
 148         snprintf(hud_msg, sizeof(hud_msg), "STATE SLOT %d [%s]", state_slot,
 149                 emu_check_state(state_slot) == 0 ? "USED" : "FREE");
 150         hud_new_msg = 3;
 151 }
 152
 153 int main(int argc, char *argv[])
 154 {
 155         void *tmp;
 156
 157         tmp = dlopen("/lib/libdl.so.2", RTLD_LAZY);
 158         if (tmp == NULL)
 159                 tmp = dlopen("/lib32/libdl.so.2", RTLD_LAZY);
 160         if (tmp != NULL)
 161                 real_getenv = dlsym(tmp, "getenv");
 162         if (real_getenv == NULL) {
 163                 fprintf(stderr, "%s\n", dlerror());
 164                 return 1;
 165         }
 166         dlclose(tmp);
 167
 168         // what is the name of the config file?
 169         // it may be redefined by -cfg on the command line
 170         strcpy(cfgfile_basename, "pcsx.cfg");
 171
 172         emuLog = stdout;
 173         SetIsoFile(NULL);
 174
 175         memset(&Config, 0, sizeof(Config));
 176
 177         CheckSubDir();
 178         set_default_paths();
 179         strcpy(Config.Bios, "HLE");
 180
 181 #ifdef MAEMO
 182         extern int maemo_main(int argc, char **argv);
 183         return maemo_main(argc, argv);
 184 #else
 185         char file[MAXPATHLEN] = "";
 186         char path[MAXPATHLEN];
 187         const char *cdfile = NULL;
 188         int loadst = 0;
 189         int i;
 190
 191         // read command line options
 192         for (i = 1; i < argc; i++) {
 193                      if (!strcmp(argv[i], "-psxout")) Config.PsxOut = 1;
 194                 else if (!strcmp(argv[i], "-load")) loadst = atol(argv[++i]);
 195                 else if (!strcmp(argv[i], "-cfg")) {
 196                         if (i+1 >= argc) break;
 197                         strncpy(cfgfile_basename, argv[++i], MAXPATHLEN-100);   /* TODO buffer overruns */
 198                         printf("Using config file %s.\n", cfgfile_basename);
 199                 }
 200                 else if (!strcmp(argv[i], "-cdfile")) {
 201                         char isofilename[MAXPATHLEN];
 202
 203                         if (i+1 >= argc) break;
 204                         strncpy(isofilename, argv[++i], MAXPATHLEN);
 205                         if (isofilename[0] != '/') {
 206                                 getcwd(path, MAXPATHLEN);
 207                                 if (strlen(path) + strlen(isofilename) + 1 < MAXPATHLEN) {
 208                                         strcat(path, "/");
 209                                         strcat(path, isofilename);
 210                                         strcpy(isofilename, path);
 211                                 } else
 212                                         isofilename[0] = 0;
 213                         }
 214
 215                         cdfile = isofilename;
 216                 }
 217                 else if (!strcmp(argv[i], "-h") ||
 218                          !strcmp(argv[i], "-help") ||
 219                          !strcmp(argv[i], "--help")) {
 220                          printf(PACKAGE_NAME " " PACKAGE_VERSION "\n");
 221                          printf("%s\n", _(
 222                                                         " pcsx [options] [file]\n"
 223                                                         "\toptions:\n"
 224                                                         "\t-cdfile FILE\tRuns a CD image file\n"
 225                                                         "\t-nogui\t\tDon't open the GTK GUI\n"
 226                                                         "\t-cfg FILE\tLoads desired configuration file (default: ~/.pcsx/pcsx.cfg)\n"
 227                                                         "\t-psxout\t\tEnable PSX output\n"
 228                                                         "\t-load STATENUM\tLoads savestate STATENUM (1-5)\n"
 229                                                         "\t-h -help\tDisplay this message\n"
 230                                                         "\tfile\t\tLoads file\n"));
 231                          return 0;
 232                 } else {
 233                         strncpy(file, argv[i], MAXPATHLEN);
 234                         if (file[0] != '/') {
 235                                 getcwd(path, MAXPATHLEN);
 236                                 if (strlen(path) + strlen(file) + 1 < MAXPATHLEN) {
 237                                         strcat(path, "/");
 238                                         strcat(path, file);
 239                                         strcpy(file, path);
 240                                 } else
 241                                         file[0] = 0;
 242                         }
 243                 }
 244         }
 245
 246         if (cdfile)
 247                 set_cd_image(cdfile);
 248
 249         if (SysInit() == -1)
 250                 return 1;
 251
 252         // frontend stuff
 253         in_init();
 254         in_probe();
 255         plat_init();
 256         menu_init();
 257
 258         if (LoadPlugins() == -1) {
 259                 // FIXME: this recovery doesn't work, just delete bad config and bail out
 260                 // SysMessage("could not load plugins, retrying with defaults\n");
 261                 set_default_paths();
 262                 snprintf(path, sizeof(path), "." PCSX_DOT_DIR "%s", cfgfile_basename);
 263                 remove(path);
 264                 SysMessage("Failed loading plugins!");
 265                 return 1;
 266         }
 267         pcnt_hook_plugins();
 268
 269         if (OpenPlugins() == -1) {
 270                 return 1;
 271         }
 272         plugin_call_rearmed_cbs();
 273
 274         CheckCdrom();
 275         SysReset();
 276
 277         if (file[0] != '\0') {
 278                 if (Load(file) != -1)
 279                         ready_to_go = 1;
 280         } else {
 281                 if (cdfile) {
 282                         if (LoadCdrom() == -1) {
 283                                 ClosePlugins();
 284                                 printf(_("Could not load CD-ROM!\n"));
 285                                 return -1;
 286                         }
 287                         ready_to_go = 1;
 288                 }
 289         }
 290
 291         // If a state has been specified, then load that
 292         if (loadst) {
 293                 int ret = emu_load_state(loadst - 1);
 294                 printf("%s state %d\n", ret ? "failed to load" : "loaded", loadst);
 295         }
 296
 297         if (ready_to_go)
 298                 menu_prepare_emu();
 299         else
 300                 menu_loop();
 301
 302         pl_start_watchdog();
 303
 304         while (1)
 305         {
 306                 stop = 0;
 307                 emu_action = SACTION_NONE;
 308
 309                 psxCpu->Execute();
 310                 if (emu_action != SACTION_NONE)
 311                         do_emu_action();
 312         }
 313
 314         return 0;
 315 #endif
 316 }
 317
 318 int SysInit() {
 319         if (EmuInit() == -1) {
 320                 printf("PSX emulator couldn't be initialized.\n");
 321                 return -1;
 322         }
 323
 324         LoadMcds(Config.Mcd1, Config.Mcd2);     /* TODO Do we need to have this here, or in the calling main() function?? */
 325
 326         if (Config.Debug) {
 327                 StartDebugger();
 328         }
 329
 330         return 0;
 331 }
 332
 333 void SysRunGui() {
 334         printf("SysRunGui\n");
 335 }
 336
 337 void StartGui() {
 338         printf("StartGui\n");
 339 }
 340
 341 static void dummy_lace()
 342 {
 343 }
 344
 345 void SysReset() {
 346         // rearmed hack: EmuReset() runs some code when real BIOS is used,
 347         // but we usually do reset from menu while GPU is not open yet,
 348         // so we need to prevent updateLace() call..
 349         void *real_lace = GPU_updateLace;
 350         GPU_updateLace = dummy_lace;
 351
 352         EmuReset();
 353
 354         // hmh core forgets this
 355         CDR_stop();
 356
 357         GPU_updateLace = real_lace;
 358 }
 359
 360 void SysClose() {
 361         EmuShutdown();
 362         ReleasePlugins();
 363
 364         StopDebugger();
 365
 366         if (emuLog != NULL) fclose(emuLog);
 367 }
 368
 369 void SysUpdate() {
 370 }
 371
 372 void OnFile_Exit() {
 373         printf("OnFile_Exit\n");
 374 #ifndef MAEMO
 375         menu_finish();
 376 #endif
 377         plat_finish();
 378         SysClose();
 379         exit(0);
 380 }
 381
 382 int get_state_filename(char *buf, int size, int i) {
 383         char trimlabel[33];
 384         int j;
 385
 386         strncpy(trimlabel, CdromLabel, 32);
 387         trimlabel[32] = 0;
 388         for (j = 31; j >= 0; j--)
 389                 if (trimlabel[j] == ' ')
 390                         trimlabel[j] = 0;
 391                 else
 392                         continue;
 393
 394         snprintf(buf, size, "." STATES_DIR "%.32s-%.9s.%3.3d",
 395                 trimlabel, CdromId, i);
 396
 397         return 0;
 398 }
 399
 400 int emu_check_state(int slot)
 401 {
 402         char fname[MAXPATHLEN];
 403         int ret;
 404
 405         ret = get_state_filename(fname, sizeof(fname), slot);
 406         if (ret != 0)
 407                 return ret;
 408
 409         return CheckState(fname);
 410 }
 411
 412 int emu_save_state(int slot)
 413 {
 414         char fname[MAXPATHLEN];
 415         int ret;
 416
 417         ret = get_state_filename(fname, sizeof(fname), slot);
 418         if (ret != 0)
 419                 return ret;
 420
 421         return SaveState(fname);
 422 }
 423
 424 int emu_load_state(int slot)
 425 {
 426         char fname[MAXPATHLEN];
 427         int ret;
 428
 429         ret = get_state_filename(fname, sizeof(fname), slot);
 430         if (ret != 0)
 431                 return ret;
 432
 433         return LoadState(fname);
 434 }
 435
 436 void SysPrintf(const char *fmt, ...) {
 437         va_list list;
 438         char msg[512];
 439
 440         va_start(list, fmt);
 441         vsprintf(msg, fmt, list);
 442         va_end(list);
 443
 444         fprintf(emuLog, "%s", msg);
 445 }
 446
 447 void SysMessage(const char *fmt, ...) {
 448         va_list list;
 449         char msg[512];
 450
 451         va_start(list, fmt);
 452         vsprintf(msg, fmt, list);
 453         va_end(list);
 454
 455         if (msg[strlen(msg) - 1] == '\n')
 456                 msg[strlen(msg) - 1] = 0;
 457
 458         fprintf(stderr, "%s\n", msg);
 459 }
 460
 461 static void SignalExit(int sig) {
 462         ClosePlugins();
 463         OnFile_Exit();
 464 }
 465
 466 #define PARSEPATH(dst, src) \
 467         ptr = src + strlen(src); \
 468         while (*ptr != '\\' && ptr != src) ptr--; \
 469         if (ptr != src) { \
 470                 strcpy(dst, ptr+1); \
 471         }
 472
 473 static int _OpenPlugins(void) {
 474         int ret;
 475
 476         signal(SIGINT, SignalExit);
 477         signal(SIGPIPE, SignalExit);
 478
 479         GPU_clearDynarec(clearDynarec);
 480
 481         ret = CDR_open();
 482         if (ret < 0) { SysMessage(_("Error opening CD-ROM plugin!")); return -1; }
 483         ret = SPU_open();
 484         if (ret < 0) { SysMessage(_("Error opening SPU plugin!")); return -1; }
 485         SPU_registerCallback(SPUirq);
 486         // pcsx-rearmed: we handle gpu elsewhere
 487         //ret = GPU_open(&gpuDisp, "PCSX", NULL);
 488         //if (ret < 0) { SysMessage(_("Error opening GPU plugin!")); return -1; }
 489         ret = PAD1_open(&gpuDisp);
 490         if (ret < 0) { SysMessage(_("Error opening Controller 1 plugin!")); return -1; }
 491         ret = PAD2_open(&gpuDisp);
 492         if (ret < 0) { SysMessage(_("Error opening Controller 2 plugin!")); return -1; }
 493
 494         if (Config.UseNet && !NetOpened) {
 495                 netInfo info;
 496                 char path[MAXPATHLEN];
 497                 char dotdir[MAXPATHLEN];
 498
 499                 MAKE_PATH(dotdir, "/.pcsx/plugins/", NULL);
 500
 501                 strcpy(info.EmuName, "PCSX " PACKAGE_VERSION);
 502                 strncpy(info.CdromID, CdromId, 9);
 503                 strncpy(info.CdromLabel, CdromLabel, 9);
 504                 info.psxMem = psxM;
 505                 info.GPU_showScreenPic = GPU_showScreenPic;
 506                 info.GPU_displayText = GPU_displayText;
 507                 info.GPU_showScreenPic = GPU_showScreenPic;
 508                 info.PAD_setSensitive = PAD1_setSensitive;
 509                 sprintf(path, "%s%s", Config.BiosDir, Config.Bios);
 510                 strcpy(info.BIOSpath, path);
 511                 strcpy(info.MCD1path, Config.Mcd1);
 512                 strcpy(info.MCD2path, Config.Mcd2);
 513                 sprintf(path, "%s%s", dotdir, Config.Gpu);
 514                 strcpy(info.GPUpath, path);
 515                 sprintf(path, "%s%s", dotdir, Config.Spu);
 516                 strcpy(info.SPUpath, path);
 517                 sprintf(path, "%s%s", dotdir, Config.Cdr);
 518                 strcpy(info.CDRpath, path);
 519                 NET_setInfo(&info);
 520
 521                 ret = NET_open(&gpuDisp);
 522                 if (ret < 0) {
 523                         if (ret == -2) {
 524                                 // -2 is returned when something in the info
 525                                 // changed and needs to be synced
 526                                 char *ptr;
 527
 528                                 PARSEPATH(Config.Bios, info.BIOSpath);
 529                                 PARSEPATH(Config.Gpu,  info.GPUpath);
 530                                 PARSEPATH(Config.Spu,  info.SPUpath);
 531                                 PARSEPATH(Config.Cdr,  info.CDRpath);
 532
 533                                 strcpy(Config.Mcd1, info.MCD1path);
 534                                 strcpy(Config.Mcd2, info.MCD2path);
 535                                 return -2;
 536                         } else {
 537                                 Config.UseNet = FALSE;
 538                         }
 539                 } else {
 540                         if (NET_queryPlayer() == 1) {
 541                                 if (SendPcsxInfo() == -1) Config.UseNet = FALSE;
 542                         } else {
 543                                 if (RecvPcsxInfo() == -1) Config.UseNet = FALSE;
 544                         }
 545                 }
 546                 NetOpened = TRUE;
 547         } else if (Config.UseNet) {
 548                 NET_resume();
 549         }
 550
 551         return 0;
 552 }
 553
 554 int OpenPlugins() {
 555         int ret;
 556
 557         while ((ret = _OpenPlugins()) == -2) {
 558                 ReleasePlugins();
 559                 LoadMcds(Config.Mcd1, Config.Mcd2);
 560                 if (LoadPlugins() == -1) return -1;
 561         }
 562         return ret;
 563 }
 564
 565 void ClosePlugins() {
 566         int ret;
 567
 568         signal(SIGINT, SIG_DFL);
 569         signal(SIGPIPE, SIG_DFL);
 570         ret = CDR_close();
 571         if (ret < 0) { SysMessage(_("Error closing CD-ROM plugin!")); return; }
 572         ret = SPU_close();
 573         if (ret < 0) { SysMessage(_("Error closing SPU plugin!")); return; }
 574         ret = PAD1_close();
 575         if (ret < 0) { SysMessage(_("Error closing Controller 1 Plugin!")); return; }
 576         ret = PAD2_close();
 577         if (ret < 0) { SysMessage(_("Error closing Controller 2 plugin!")); return; }
 578         // pcsx-rearmed: we handle gpu elsewhere
 579         //ret = GPU_close();
 580         //if (ret < 0) { SysMessage(_("Error closing GPU plugin!")); return; }
 581
 582         if (Config.UseNet) {
 583                 NET_pause();
 584         }
 585 }
 586
 587 #if 1
 588 /* this is to avoid having to hack every plugin to stop using $HOME */
 589 char *getenv(const char *name)
 590 {
 591         static char ret[8] = ".";
 592
 593         if (name && strcmp(name, "HOME") == 0 &&
 594                         ((int)name >> 28) == 0) // HACK: let libs find home
 595                 return ret;
 596
 597         return real_getenv(name);
 598 }
 599 #endif
 600
 601 /* we hook statically linked plugins here */
 602 static const char *builtin_plugins[] = {
 603         "builtin_gpu", "builtin_spu", "builtin_cdr", "builtin_pad",
 604         "builtin_cdrcimg",
 605 };
 606
 607 static const int builtin_plugin_ids[] = {
 608         PLUGIN_GPU, PLUGIN_SPU, PLUGIN_CDR, PLUGIN_PAD,
 609         PLUGIN_CDRCIMG,
 610 };
 611
 612 void *SysLoadLibrary(const char *lib) {
 613         const char *tmp = strrchr(lib, '/');
 614         void *ret;
 615         int i;
 616
 617         printf("plugin: %s\n", lib);
 618
 619         if (tmp != NULL) {
 620                 tmp++;
 621                 for (i = 0; i < ARRAY_SIZE(builtin_plugins); i++)
 622                         if (strcmp(tmp, builtin_plugins[i]) == 0)
 623                                 return (void *)(long)(PLUGIN_DL_BASE + builtin_plugin_ids[i]);
 624         }
 625
 626 #if defined(__x86_64__) || defined(__i386__)
 627         // convenience hack
 628         char name[MAXPATHLEN];
 629         snprintf(name, sizeof(name), "%s.x86", lib);
 630         lib = name;
 631 #endif
 632
 633         ret = dlopen(lib, RTLD_NOW);
 634         if (ret == NULL)
 635                 fprintf(stderr, "dlopen: %s\n", dlerror());
 636         return ret;
 637 }
 638
 639 void *SysLoadSym(void *lib, const char *sym) {
 640         unsigned int plugid = (unsigned int)(long)lib;
 641
 642         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 643                 return plugin_link(plugid - PLUGIN_DL_BASE, sym);
 644
 645         return dlsym(lib, sym);
 646 }
 647
 648 const char *SysLibError() {
 649         return dlerror();
 650 }
 651
 652 void SysCloseLibrary(void *lib) {
 653         unsigned int plugid = (unsigned int)(long)lib;
 654
 655         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 656                 return;
 657
 658         dlclose(lib);
 659 }
 660