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 #include <time.h>
  17
  18 #include "main.h"
  19 #include "plugin.h"
  20 #include "plugin_lib.h"
  21 #include "pcnt.h"
  22 #include "menu.h"
  23 #include "../libpcsxcore/misc.h"
  24 #include "../libpcsxcore/new_dynarec/new_dynarec.h"
  25 #include "../plugins/cdrcimg/cdrcimg.h"
  26 #include "common/plat.h"
  27 #include "common/input.h"
  28 #include "common/readpng.h"
  29
  30 int ready_to_go;
  31 unsigned long gpuDisp;
  32 char cfgfile_basename[MAXPATHLEN];
  33 static char *(*real_getenv)(const char *name);
  34 int state_slot;
  35 enum sched_action emu_action, emu_action_old;
  36 char hud_msg[64];
  37 int hud_new_msg;
  38
  39 static void make_path(char *buf, size_t size, const char *dir, const char *fname)
  40 {
  41         if (fname)
  42                 snprintf(buf, size, ".%s%s", dir, fname);
  43         else
  44                 snprintf(buf, size, ".%s", dir);
  45 }
  46 #define MAKE_PATH(buf, dir, fname) \
  47         make_path(buf, sizeof(buf), dir, fname)
  48
  49 static void create_profile_dir(const char *directory) {
  50         char path[MAXPATHLEN];
  51
  52         MAKE_PATH(path, directory, NULL);
  53         mkdir(path, S_IRWXU | S_IRWXG);
  54 }
  55
  56 static void CheckSubDir() {
  57         // make sure that ~/.pcsx exists
  58         create_profile_dir(PCSX_DOT_DIR);
  59
  60         create_profile_dir(BIOS_DIR);
  61         create_profile_dir(MEMCARD_DIR);
  62         create_profile_dir(STATES_DIR);
  63         create_profile_dir(PLUGINS_DIR);
  64         create_profile_dir(PLUGINS_CFG_DIR);
  65         create_profile_dir(CHEATS_DIR);
  66         create_profile_dir(PATCHES_DIR);
  67         create_profile_dir(PCSX_DOT_DIR "cfg");
  68         create_profile_dir("/screenshots/");
  69 }
  70
  71 static int get_gameid_filename(char *buf, int size, const char *fmt, int i) {
  72         char trimlabel[33];
  73         int j;
  74
  75         strncpy(trimlabel, CdromLabel, 32);
  76         trimlabel[32] = 0;
  77         for (j = 31; j >= 0; j--)
  78                 if (trimlabel[j] == ' ')
  79                         trimlabel[j] = 0;
  80                 else
  81                         continue;
  82
  83         snprintf(buf, size, fmt, trimlabel, CdromId, i);
  84
  85         return 0;
  86 }
  87
  88 void set_cd_image(const char *fname)
  89 {
  90         const char *ext = NULL;
  91
  92         if (fname != NULL)
  93                 ext = strrchr(fname, '.');
  94
  95         if (ext && (
  96             strcasecmp(ext, ".z") == 0 || strcasecmp(ext, ".bz") == 0 ||
  97             strcasecmp(ext, ".znx") == 0 /*|| strcasecmp(ext, ".pbp") == 0*/)) {
  98                 SetIsoFile(NULL);
  99                 cdrcimg_set_fname(fname);
 100                 strcpy(Config.Cdr, "builtin_cdrcimg");
 101         } else {
 102                 SetIsoFile(fname);
 103                 strcpy(Config.Cdr, "builtin_cdr");
 104         }
 105 }
 106
 107 static void set_default_paths(void)
 108 {
 109         MAKE_PATH(Config.Mcd1, MEMCARD_DIR, "card1.mcd");
 110         MAKE_PATH(Config.Mcd2, MEMCARD_DIR, "card2.mcd");
 111         strcpy(Config.BiosDir, "bios");
 112
 113         strcpy(Config.PluginsDir, "plugins");
 114         strcpy(Config.Gpu, "builtin_gpu");
 115         strcpy(Config.Spu, "builtin_spu");
 116         strcpy(Config.Cdr, "builtin_cdr");
 117         strcpy(Config.Pad1, "builtin_pad");
 118         strcpy(Config.Pad2, "builtin_pad");
 119         strcpy(Config.Net, "Disabled");
 120         Config.PsxAuto = 1;
 121
 122         snprintf(Config.PatchesDir, sizeof(Config.PatchesDir), "." PATCHES_DIR);
 123 }
 124
 125 void do_emu_action(void)
 126 {
 127         char buf[MAXPATHLEN];
 128         int ret;
 129
 130         emu_action_old = emu_action;
 131
 132         switch (emu_action) {
 133         case SACTION_NONE:
 134                 return;
 135         case SACTION_ENTER_MENU:
 136                 menu_loop();
 137                 return;
 138         case SACTION_LOAD_STATE:
 139                 ret = emu_load_state(state_slot);
 140                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "LOADED" : "FAIL!");
 141                 break;
 142         case SACTION_SAVE_STATE:
 143                 ret = emu_save_state(state_slot);
 144                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "SAVED" : "FAIL!");
 145                 break;
 146         case SACTION_NEXT_SSLOT:
 147                 state_slot++;
 148                 if (state_slot > 9)
 149                         state_slot = 0;
 150                 goto do_state_slot;
 151         case SACTION_PREV_SSLOT:
 152                 state_slot--;
 153                 if (state_slot < 0)
 154                         state_slot = 9;
 155                 goto do_state_slot;
 156         case SACTION_TOGGLE_FSKIP:
 157                 pl_rearmed_cbs.frameskip ^= 1;
 158                 snprintf(hud_msg, sizeof(hud_msg), "FRAMESKIP %s",
 159                         pl_rearmed_cbs.frameskip ? "ON" : "OFF");
 160                 break;
 161         case SACTION_SCREENSHOT:
 162                 {
 163                         void *scrbuf;
 164                         int w, h, bpp;
 165                         time_t t = time(NULL);
 166                         struct tm *tb = localtime(&t);
 167                         int ti = tb->tm_yday * 1000000 + tb->tm_hour * 10000 +
 168                                 tb->tm_min * 100 + tb->tm_sec;
 169
 170                         scrbuf = pl_prepare_screenshot(&w, &h, &bpp);
 171                         get_gameid_filename(buf, sizeof(buf),
 172                                 "screenshots/%.32s-%.9s.%d.png", ti);
 173                         ret = -1;
 174                         if (scrbuf != 0 && bpp == 16)
 175                                 ret = writepng(buf, scrbuf, w, h);
 176                         if (ret == 0)
 177                                 snprintf(hud_msg, sizeof(hud_msg), "SCREENSHOT TAKEN");
 178                         break;
 179                 }
 180         }
 181         hud_new_msg = 3;
 182         return;
 183
 184 do_state_slot:
 185         snprintf(hud_msg, sizeof(hud_msg), "STATE SLOT %d [%s]", state_slot,
 186                 emu_check_state(state_slot) == 0 ? "USED" : "FREE");
 187         hud_new_msg = 3;
 188 }
 189
 190 int main(int argc, char *argv[])
 191 {
 192         void *tmp;
 193
 194         tmp = dlopen("/lib/libdl.so.2", RTLD_LAZY);
 195         if (tmp == NULL)
 196                 tmp = dlopen("/lib32/libdl.so.2", RTLD_LAZY);
 197         if (tmp != NULL)
 198                 real_getenv = dlsym(tmp, "getenv");
 199         if (real_getenv == NULL) {
 200                 fprintf(stderr, "%s\n", dlerror());
 201                 return 1;
 202         }
 203         dlclose(tmp);
 204
 205         // what is the name of the config file?
 206         // it may be redefined by -cfg on the command line
 207         strcpy(cfgfile_basename, "pcsx.cfg");
 208
 209         emuLog = stdout;
 210         SetIsoFile(NULL);
 211
 212         memset(&Config, 0, sizeof(Config));
 213
 214         CheckSubDir();
 215         set_default_paths();
 216         strcpy(Config.Bios, "HLE");
 217
 218 #ifdef MAEMO
 219         extern int maemo_main(int argc, char **argv);
 220         return maemo_main(argc, argv);
 221 #else
 222         char file[MAXPATHLEN] = "";
 223         char path[MAXPATHLEN];
 224         const char *cdfile = NULL;
 225         const char *loadst_f = NULL;
 226         int psxout = 0;
 227         int loadst = 0;
 228         int i;
 229
 230         // read command line options
 231         for (i = 1; i < argc; i++) {
 232                      if (!strcmp(argv[i], "-psxout")) psxout = 1;
 233                 else if (!strcmp(argv[i], "-load")) loadst = atol(argv[++i]);
 234                 else if (!strcmp(argv[i], "-cfg")) {
 235                         if (i+1 >= argc) break;
 236                         strncpy(cfgfile_basename, argv[++i], MAXPATHLEN-100);   /* TODO buffer overruns */
 237                         printf("Using config file %s.\n", cfgfile_basename);
 238                 }
 239                 else if (!strcmp(argv[i], "-cdfile")) {
 240                         char isofilename[MAXPATHLEN];
 241
 242                         if (i+1 >= argc) break;
 243                         strncpy(isofilename, argv[++i], MAXPATHLEN);
 244                         if (isofilename[0] != '/') {
 245                                 getcwd(path, MAXPATHLEN);
 246                                 if (strlen(path) + strlen(isofilename) + 1 < MAXPATHLEN) {
 247                                         strcat(path, "/");
 248                                         strcat(path, isofilename);
 249                                         strcpy(isofilename, path);
 250                                 } else
 251                                         isofilename[0] = 0;
 252                         }
 253
 254                         cdfile = isofilename;
 255                 }
 256                 else if (!strcmp(argv[i], "-loadf")) {
 257                         if (i+1 >= argc) break;
 258                         loadst_f = argv[++i];
 259                 }
 260                 else if (!strcmp(argv[i], "-h") ||
 261                          !strcmp(argv[i], "-help") ||
 262                          !strcmp(argv[i], "--help")) {
 263                          printf(PACKAGE_NAME " " PACKAGE_VERSION "\n");
 264                          printf("%s\n", _(
 265                                                         " pcsx [options] [file]\n"
 266                                                         "\toptions:\n"
 267                                                         "\t-cdfile FILE\tRuns a CD image file\n"
 268                                                         "\t-nogui\t\tDon't open the GTK GUI\n"
 269                                                         "\t-cfg FILE\tLoads desired configuration file (default: ~/.pcsx/pcsx.cfg)\n"
 270                                                         "\t-psxout\t\tEnable PSX output\n"
 271                                                         "\t-load STATENUM\tLoads savestate STATENUM (1-5)\n"
 272                                                         "\t-h -help\tDisplay this message\n"
 273                                                         "\tfile\t\tLoads file\n"));
 274                          return 0;
 275                 } else {
 276                         strncpy(file, argv[i], MAXPATHLEN);
 277                         if (file[0] != '/') {
 278                                 getcwd(path, MAXPATHLEN);
 279                                 if (strlen(path) + strlen(file) + 1 < MAXPATHLEN) {
 280                                         strcat(path, "/");
 281                                         strcat(path, file);
 282                                         strcpy(file, path);
 283                                 } else
 284                                         file[0] = 0;
 285                         }
 286                 }
 287         }
 288
 289         if (cdfile)
 290                 set_cd_image(cdfile);
 291
 292         if (SysInit() == -1)
 293                 return 1;
 294
 295         // frontend stuff
 296         in_init();
 297         //in_probe();
 298         plat_init();
 299         menu_init(); // loads config
 300
 301         if (psxout)
 302                 Config.PsxOut = 1;
 303
 304         if (LoadPlugins() == -1) {
 305                 // FIXME: this recovery doesn't work, just delete bad config and bail out
 306                 // SysMessage("could not load plugins, retrying with defaults\n");
 307                 set_default_paths();
 308                 snprintf(path, sizeof(path), "." PCSX_DOT_DIR "%s", cfgfile_basename);
 309                 remove(path);
 310                 SysMessage("Failed loading plugins!");
 311                 return 1;
 312         }
 313         pcnt_hook_plugins();
 314
 315         if (OpenPlugins() == -1) {
 316                 return 1;
 317         }
 318         plugin_call_rearmed_cbs();
 319
 320         CheckCdrom();
 321         SysReset();
 322
 323         if (file[0] != '\0') {
 324                 if (Load(file) != -1)
 325                         ready_to_go = 1;
 326         } else {
 327                 if (cdfile) {
 328                         if (LoadCdrom() == -1) {
 329                                 ClosePlugins();
 330                                 printf(_("Could not load CD-ROM!\n"));
 331                                 return -1;
 332                         }
 333                         ready_to_go = 1;
 334                 }
 335         }
 336
 337         if (ready_to_go) {
 338                 menu_prepare_emu();
 339
 340                 // If a state has been specified, then load that
 341                 if (loadst) {
 342                         int ret = emu_load_state(loadst - 1);
 343                         printf("%s state %d\n", ret ? "failed to load" : "loaded", loadst);
 344                 }
 345                 if (loadst_f) {
 346                         int ret = LoadState(loadst_f);
 347                         printf("%s state file: %s\n", ret ? "failed to load" : "loaded", loadst_f);
 348                 }
 349         }
 350         else
 351                 menu_loop();
 352
 353         pl_start_watchdog();
 354
 355         while (1)
 356         {
 357                 stop = 0;
 358                 emu_action = SACTION_NONE;
 359
 360                 psxCpu->Execute();
 361                 if (emu_action != SACTION_NONE)
 362                         do_emu_action();
 363         }
 364
 365         return 0;
 366 #endif
 367 }
 368
 369 int SysInit() {
 370         if (EmuInit() == -1) {
 371                 printf("PSX emulator couldn't be initialized.\n");
 372                 return -1;
 373         }
 374
 375         LoadMcds(Config.Mcd1, Config.Mcd2);     /* TODO Do we need to have this here, or in the calling main() function?? */
 376
 377         if (Config.Debug) {
 378                 StartDebugger();
 379         }
 380
 381         return 0;
 382 }
 383
 384 void SysRunGui() {
 385         printf("SysRunGui\n");
 386 }
 387
 388 void StartGui() {
 389         printf("StartGui\n");
 390 }
 391
 392 static void dummy_lace()
 393 {
 394 }
 395
 396 void SysReset() {
 397         // rearmed hack: EmuReset() runs some code when real BIOS is used,
 398         // but we usually do reset from menu while GPU is not open yet,
 399         // so we need to prevent updateLace() call..
 400         void *real_lace = GPU_updateLace;
 401         GPU_updateLace = dummy_lace;
 402
 403         EmuReset();
 404
 405         // hmh core forgets this
 406         CDR_stop();
 407
 408         GPU_updateLace = real_lace;
 409 }
 410
 411 void SysClose() {
 412         EmuShutdown();
 413         ReleasePlugins();
 414
 415         StopDebugger();
 416
 417         if (emuLog != NULL) fclose(emuLog);
 418 }
 419
 420 void SysUpdate() {
 421 }
 422
 423 void OnFile_Exit() {
 424         printf("OnFile_Exit\n");
 425 #ifndef MAEMO
 426         menu_finish();
 427 #endif
 428         SysClose();
 429         plat_finish();
 430         exit(0);
 431 }
 432
 433 int get_state_filename(char *buf, int size, int i) {
 434         return get_gameid_filename(buf, size,
 435                 "." STATES_DIR "%.32s-%.9s.%3.3d", i);
 436 }
 437
 438 int emu_check_state(int slot)
 439 {
 440         char fname[MAXPATHLEN];
 441         int ret;
 442
 443         ret = get_state_filename(fname, sizeof(fname), slot);
 444         if (ret != 0)
 445                 return ret;
 446
 447         return CheckState(fname);
 448 }
 449
 450 int emu_save_state(int slot)
 451 {
 452         char fname[MAXPATHLEN];
 453         int ret;
 454
 455         ret = get_state_filename(fname, sizeof(fname), slot);
 456         if (ret != 0)
 457                 return ret;
 458
 459         return SaveState(fname);
 460 }
 461
 462 int emu_load_state(int slot)
 463 {
 464         char fname[MAXPATHLEN];
 465         int ret;
 466
 467         ret = get_state_filename(fname, sizeof(fname), slot);
 468         if (ret != 0)
 469                 return ret;
 470
 471         return LoadState(fname);
 472 }
 473
 474 void SysPrintf(const char *fmt, ...) {
 475         va_list list;
 476         char msg[512];
 477
 478         va_start(list, fmt);
 479         vsprintf(msg, fmt, list);
 480         va_end(list);
 481
 482         fprintf(emuLog, "%s", msg);
 483 }
 484
 485 void SysMessage(const char *fmt, ...) {
 486         va_list list;
 487         char msg[512];
 488
 489         va_start(list, fmt);
 490         vsprintf(msg, fmt, list);
 491         va_end(list);
 492
 493         if (msg[strlen(msg) - 1] == '\n')
 494                 msg[strlen(msg) - 1] = 0;
 495
 496         fprintf(stderr, "%s\n", msg);
 497 }
 498
 499 static void SignalExit(int sig) {
 500         ClosePlugins();
 501         OnFile_Exit();
 502 }
 503
 504 #define PARSEPATH(dst, src) \
 505         ptr = src + strlen(src); \
 506         while (*ptr != '\\' && ptr != src) ptr--; \
 507         if (ptr != src) { \
 508                 strcpy(dst, ptr+1); \
 509         }
 510
 511 static int _OpenPlugins(void) {
 512         int ret;
 513
 514         signal(SIGINT, SignalExit);
 515         signal(SIGPIPE, SignalExit);
 516
 517         GPU_clearDynarec(clearDynarec);
 518
 519         ret = CDR_open();
 520         if (ret < 0) { SysMessage(_("Error opening CD-ROM plugin!")); return -1; }
 521         ret = SPU_open();
 522         if (ret < 0) { SysMessage(_("Error opening SPU plugin!")); return -1; }
 523         SPU_registerCallback(SPUirq);
 524         // pcsx-rearmed: we handle gpu elsewhere
 525         //ret = GPU_open(&gpuDisp, "PCSX", NULL);
 526         //if (ret < 0) { SysMessage(_("Error opening GPU plugin!")); return -1; }
 527         ret = PAD1_open(&gpuDisp);
 528         if (ret < 0) { SysMessage(_("Error opening Controller 1 plugin!")); return -1; }
 529         ret = PAD2_open(&gpuDisp);
 530         if (ret < 0) { SysMessage(_("Error opening Controller 2 plugin!")); return -1; }
 531
 532         if (Config.UseNet && !NetOpened) {
 533                 netInfo info;
 534                 char path[MAXPATHLEN];
 535                 char dotdir[MAXPATHLEN];
 536
 537                 MAKE_PATH(dotdir, "/.pcsx/plugins/", NULL);
 538
 539                 strcpy(info.EmuName, "PCSX " PACKAGE_VERSION);
 540                 strncpy(info.CdromID, CdromId, 9);
 541                 strncpy(info.CdromLabel, CdromLabel, 9);
 542                 info.psxMem = psxM;
 543                 info.GPU_showScreenPic = GPU_showScreenPic;
 544                 info.GPU_displayText = GPU_displayText;
 545                 info.GPU_showScreenPic = GPU_showScreenPic;
 546                 info.PAD_setSensitive = PAD1_setSensitive;
 547                 sprintf(path, "%s%s", Config.BiosDir, Config.Bios);
 548                 strcpy(info.BIOSpath, path);
 549                 strcpy(info.MCD1path, Config.Mcd1);
 550                 strcpy(info.MCD2path, Config.Mcd2);
 551                 sprintf(path, "%s%s", dotdir, Config.Gpu);
 552                 strcpy(info.GPUpath, path);
 553                 sprintf(path, "%s%s", dotdir, Config.Spu);
 554                 strcpy(info.SPUpath, path);
 555                 sprintf(path, "%s%s", dotdir, Config.Cdr);
 556                 strcpy(info.CDRpath, path);
 557                 NET_setInfo(&info);
 558
 559                 ret = NET_open(&gpuDisp);
 560                 if (ret < 0) {
 561                         if (ret == -2) {
 562                                 // -2 is returned when something in the info
 563                                 // changed and needs to be synced
 564                                 char *ptr;
 565
 566                                 PARSEPATH(Config.Bios, info.BIOSpath);
 567                                 PARSEPATH(Config.Gpu,  info.GPUpath);
 568                                 PARSEPATH(Config.Spu,  info.SPUpath);
 569                                 PARSEPATH(Config.Cdr,  info.CDRpath);
 570
 571                                 strcpy(Config.Mcd1, info.MCD1path);
 572                                 strcpy(Config.Mcd2, info.MCD2path);
 573                                 return -2;
 574                         } else {
 575                                 Config.UseNet = FALSE;
 576                         }
 577                 } else {
 578                         if (NET_queryPlayer() == 1) {
 579                                 if (SendPcsxInfo() == -1) Config.UseNet = FALSE;
 580                         } else {
 581                                 if (RecvPcsxInfo() == -1) Config.UseNet = FALSE;
 582                         }
 583                 }
 584                 NetOpened = TRUE;
 585         } else if (Config.UseNet) {
 586                 NET_resume();
 587         }
 588
 589         return 0;
 590 }
 591
 592 int OpenPlugins() {
 593         int ret;
 594
 595         while ((ret = _OpenPlugins()) == -2) {
 596                 ReleasePlugins();
 597                 LoadMcds(Config.Mcd1, Config.Mcd2);
 598                 if (LoadPlugins() == -1) return -1;
 599         }
 600         return ret;
 601 }
 602
 603 void ClosePlugins() {
 604         int ret;
 605
 606         signal(SIGINT, SIG_DFL);
 607         signal(SIGPIPE, SIG_DFL);
 608         ret = CDR_close();
 609         if (ret < 0) { SysMessage(_("Error closing CD-ROM plugin!")); return; }
 610         ret = SPU_close();
 611         if (ret < 0) { SysMessage(_("Error closing SPU plugin!")); return; }
 612         ret = PAD1_close();
 613         if (ret < 0) { SysMessage(_("Error closing Controller 1 Plugin!")); return; }
 614         ret = PAD2_close();
 615         if (ret < 0) { SysMessage(_("Error closing Controller 2 plugin!")); return; }
 616         // pcsx-rearmed: we handle gpu elsewhere
 617         //ret = GPU_close();
 618         //if (ret < 0) { SysMessage(_("Error closing GPU plugin!")); return; }
 619
 620         if (Config.UseNet) {
 621                 NET_pause();
 622         }
 623 }
 624
 625 #if 1
 626 /* this is to avoid having to hack every plugin to stop using $HOME */
 627 char *getenv(const char *name)
 628 {
 629         static char ret[8] = ".";
 630
 631         if (name && strcmp(name, "HOME") == 0 &&
 632                         ((int)name >> 28) == 0) // HACK: let libs find home
 633                 return ret;
 634
 635         return real_getenv(name);
 636 }
 637 #endif
 638
 639 /* we hook statically linked plugins here */
 640 static const char *builtin_plugins[] = {
 641         "builtin_gpu", "builtin_spu", "builtin_cdr", "builtin_pad",
 642         "builtin_cdrcimg",
 643 };
 644
 645 static const int builtin_plugin_ids[] = {
 646         PLUGIN_GPU, PLUGIN_SPU, PLUGIN_CDR, PLUGIN_PAD,
 647         PLUGIN_CDRCIMG,
 648 };
 649
 650 void *SysLoadLibrary(const char *lib) {
 651         const char *tmp = strrchr(lib, '/');
 652         void *ret;
 653         int i;
 654
 655         printf("plugin: %s\n", lib);
 656
 657         if (tmp != NULL) {
 658                 tmp++;
 659                 for (i = 0; i < ARRAY_SIZE(builtin_plugins); i++)
 660                         if (strcmp(tmp, builtin_plugins[i]) == 0)
 661                                 return (void *)(long)(PLUGIN_DL_BASE + builtin_plugin_ids[i]);
 662         }
 663
 664 #if defined(__x86_64__) || defined(__i386__)
 665         // convenience hack
 666         char name[MAXPATHLEN];
 667         snprintf(name, sizeof(name), "%s.x86", lib);
 668         lib = name;
 669 #endif
 670
 671         ret = dlopen(lib, RTLD_NOW);
 672         if (ret == NULL)
 673                 fprintf(stderr, "dlopen: %s\n", dlerror());
 674         return ret;
 675 }
 676
 677 void *SysLoadSym(void *lib, const char *sym) {
 678         unsigned int plugid = (unsigned int)(long)lib;
 679
 680         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 681                 return plugin_link(plugid - PLUGIN_DL_BASE, sym);
 682
 683         return dlsym(lib, sym);
 684 }
 685
 686 const char *SysLibError() {
 687         return dlerror();
 688 }
 689
 690 void SysCloseLibrary(void *lib) {
 691         unsigned int plugid = (unsigned int)(long)lib;
 692
 693         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 694                 return;
 695
 696         dlclose(lib);
 697 }
 698