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