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 static void check_memcards(void)
 126 {
 127         char buf[MAXPATHLEN];
 128         FILE *f;
 129         int i;
 130
 131         for (i = 1; i <= 9; i++) {
 132                 snprintf(buf, sizeof(buf), ".%scard%d.mcd", MEMCARD_DIR, i);
 133
 134                 f = fopen(buf, "rb");
 135                 if (f == NULL) {
 136                         printf("Creating memcard: %s\n", buf);
 137                         CreateMcd(buf);
 138                 }
 139                 else
 140                         fclose(f);
 141         }
 142 }
 143
 144 void do_emu_action(void)
 145 {
 146         char buf[MAXPATHLEN];
 147         int ret;
 148
 149         emu_action_old = emu_action;
 150
 151         switch (emu_action) {
 152         case SACTION_NONE:
 153                 return;
 154         case SACTION_ENTER_MENU:
 155                 menu_loop();
 156                 return;
 157         case SACTION_LOAD_STATE:
 158                 ret = emu_load_state(state_slot);
 159                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "LOADED" : "FAIL!");
 160                 break;
 161         case SACTION_SAVE_STATE:
 162                 ret = emu_save_state(state_slot);
 163                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "SAVED" : "FAIL!");
 164                 break;
 165         case SACTION_NEXT_SSLOT:
 166                 state_slot++;
 167                 if (state_slot > 9)
 168                         state_slot = 0;
 169                 goto do_state_slot;
 170         case SACTION_PREV_SSLOT:
 171                 state_slot--;
 172                 if (state_slot < 0)
 173                         state_slot = 9;
 174                 goto do_state_slot;
 175         case SACTION_TOGGLE_FSKIP:
 176                 pl_rearmed_cbs.frameskip ^= 1;
 177                 snprintf(hud_msg, sizeof(hud_msg), "FRAMESKIP %s",
 178                         pl_rearmed_cbs.frameskip ? "ON" : "OFF");
 179                 break;
 180         case SACTION_SCREENSHOT:
 181                 {
 182                         void *scrbuf;
 183                         int w, h, bpp;
 184                         time_t t = time(NULL);
 185                         struct tm *tb = localtime(&t);
 186                         int ti = tb->tm_yday * 1000000 + tb->tm_hour * 10000 +
 187                                 tb->tm_min * 100 + tb->tm_sec;
 188
 189                         scrbuf = pl_prepare_screenshot(&w, &h, &bpp);
 190                         get_gameid_filename(buf, sizeof(buf),
 191                                 "screenshots/%.32s-%.9s.%d.png", ti);
 192                         ret = -1;
 193                         if (scrbuf != 0 && bpp == 16)
 194                                 ret = writepng(buf, scrbuf, w, h);
 195                         if (ret == 0)
 196                                 snprintf(hud_msg, sizeof(hud_msg), "SCREENSHOT TAKEN");
 197                         break;
 198                 }
 199         }
 200         hud_new_msg = 3;
 201         return;
 202
 203 do_state_slot:
 204         snprintf(hud_msg, sizeof(hud_msg), "STATE SLOT %d [%s]", state_slot,
 205                 emu_check_state(state_slot) == 0 ? "USED" : "FREE");
 206         hud_new_msg = 3;
 207 }
 208
 209 int main(int argc, char *argv[])
 210 {
 211         void *tmp;
 212
 213         tmp = dlopen("/lib/libdl.so.2", RTLD_LAZY);
 214         if (tmp == NULL)
 215                 tmp = dlopen("/lib32/libdl.so.2", RTLD_LAZY);
 216         if (tmp != NULL)
 217                 real_getenv = dlsym(tmp, "getenv");
 218         if (real_getenv == NULL) {
 219                 fprintf(stderr, "%s\n", dlerror());
 220                 return 1;
 221         }
 222         dlclose(tmp);
 223
 224         // what is the name of the config file?
 225         // it may be redefined by -cfg on the command line
 226         strcpy(cfgfile_basename, "pcsx.cfg");
 227
 228         emuLog = stdout;
 229         SetIsoFile(NULL);
 230
 231         memset(&Config, 0, sizeof(Config));
 232
 233         CheckSubDir();
 234         set_default_paths();
 235         check_memcards();
 236         strcpy(Config.Bios, "HLE");
 237
 238 #ifdef MAEMO
 239         extern int maemo_main(int argc, char **argv);
 240         return maemo_main(argc, argv);
 241 #else
 242         char file[MAXPATHLEN] = "";
 243         char path[MAXPATHLEN];
 244         const char *cdfile = NULL;
 245         const char *loadst_f = NULL;
 246         int psxout = 0;
 247         int loadst = 0;
 248         int i;
 249
 250         // read command line options
 251         for (i = 1; i < argc; i++) {
 252                      if (!strcmp(argv[i], "-psxout")) psxout = 1;
 253                 else if (!strcmp(argv[i], "-load")) loadst = atol(argv[++i]);
 254                 else if (!strcmp(argv[i], "-cfg")) {
 255                         if (i+1 >= argc) break;
 256                         strncpy(cfgfile_basename, argv[++i], MAXPATHLEN-100);   /* TODO buffer overruns */
 257                         printf("Using config file %s.\n", cfgfile_basename);
 258                 }
 259                 else if (!strcmp(argv[i], "-cdfile")) {
 260                         char isofilename[MAXPATHLEN];
 261
 262                         if (i+1 >= argc) break;
 263                         strncpy(isofilename, argv[++i], MAXPATHLEN);
 264                         if (isofilename[0] != '/') {
 265                                 getcwd(path, MAXPATHLEN);
 266                                 if (strlen(path) + strlen(isofilename) + 1 < MAXPATHLEN) {
 267                                         strcat(path, "/");
 268                                         strcat(path, isofilename);
 269                                         strcpy(isofilename, path);
 270                                 } else
 271                                         isofilename[0] = 0;
 272                         }
 273
 274                         cdfile = isofilename;
 275                 }
 276                 else if (!strcmp(argv[i], "-loadf")) {
 277                         if (i+1 >= argc) break;
 278                         loadst_f = argv[++i];
 279                 }
 280                 else if (!strcmp(argv[i], "-h") ||
 281                          !strcmp(argv[i], "-help") ||
 282                          !strcmp(argv[i], "--help")) {
 283                          printf(PACKAGE_NAME " " PACKAGE_VERSION "\n");
 284                          printf("%s\n", _(
 285                                                         " pcsx [options] [file]\n"
 286                                                         "\toptions:\n"
 287                                                         "\t-cdfile FILE\tRuns a CD image file\n"
 288                                                         "\t-nogui\t\tDon't open the GTK GUI\n"
 289                                                         "\t-cfg FILE\tLoads desired configuration file (default: ~/.pcsx/pcsx.cfg)\n"
 290                                                         "\t-psxout\t\tEnable PSX output\n"
 291                                                         "\t-load STATENUM\tLoads savestate STATENUM (1-5)\n"
 292                                                         "\t-h -help\tDisplay this message\n"
 293                                                         "\tfile\t\tLoads file\n"));
 294                          return 0;
 295                 } else {
 296                         strncpy(file, argv[i], MAXPATHLEN);
 297                         if (file[0] != '/') {
 298                                 getcwd(path, MAXPATHLEN);
 299                                 if (strlen(path) + strlen(file) + 1 < MAXPATHLEN) {
 300                                         strcat(path, "/");
 301                                         strcat(path, file);
 302                                         strcpy(file, path);
 303                                 } else
 304                                         file[0] = 0;
 305                         }
 306                 }
 307         }
 308
 309         if (cdfile)
 310                 set_cd_image(cdfile);
 311
 312         if (SysInit() == -1)
 313                 return 1;
 314
 315         // frontend stuff
 316         in_init();
 317         //in_probe();
 318         plat_init();
 319         menu_init(); // loads config
 320
 321         if (psxout)
 322                 Config.PsxOut = 1;
 323
 324         if (LoadPlugins() == -1) {
 325                 // FIXME: this recovery doesn't work, just delete bad config and bail out
 326                 // SysMessage("could not load plugins, retrying with defaults\n");
 327                 set_default_paths();
 328                 snprintf(path, sizeof(path), "." PCSX_DOT_DIR "%s", cfgfile_basename);
 329                 remove(path);
 330                 SysMessage("Failed loading plugins!");
 331                 return 1;
 332         }
 333         pcnt_hook_plugins();
 334
 335         if (OpenPlugins() == -1) {
 336                 return 1;
 337         }
 338         plugin_call_rearmed_cbs();
 339
 340         CheckCdrom();
 341         SysReset();
 342
 343         if (file[0] != '\0') {
 344                 if (Load(file) != -1)
 345                         ready_to_go = 1;
 346         } else {
 347                 if (cdfile) {
 348                         if (LoadCdrom() == -1) {
 349                                 ClosePlugins();
 350                                 printf(_("Could not load CD-ROM!\n"));
 351                                 return -1;
 352                         }
 353                         ready_to_go = 1;
 354                 }
 355         }
 356
 357         if (ready_to_go) {
 358                 menu_prepare_emu();
 359
 360                 // If a state has been specified, then load that
 361                 if (loadst) {
 362                         int ret = emu_load_state(loadst - 1);
 363                         printf("%s state %d\n", ret ? "failed to load" : "loaded", loadst);
 364                 }
 365                 if (loadst_f) {
 366                         int ret = LoadState(loadst_f);
 367                         printf("%s state file: %s\n", ret ? "failed to load" : "loaded", loadst_f);
 368                 }
 369         }
 370         else
 371                 menu_loop();
 372
 373         pl_start_watchdog();
 374
 375         while (1)
 376         {
 377                 stop = 0;
 378                 emu_action = SACTION_NONE;
 379
 380                 psxCpu->Execute();
 381                 if (emu_action != SACTION_NONE)
 382                         do_emu_action();
 383         }
 384
 385         return 0;
 386 #endif
 387 }
 388
 389 int SysInit() {
 390         if (EmuInit() == -1) {
 391                 printf("PSX emulator couldn't be initialized.\n");
 392                 return -1;
 393         }
 394
 395         LoadMcds(Config.Mcd1, Config.Mcd2);
 396
 397         if (Config.Debug) {
 398                 StartDebugger();
 399         }
 400
 401         return 0;
 402 }
 403
 404 void SysRunGui() {
 405         printf("SysRunGui\n");
 406 }
 407
 408 void StartGui() {
 409         printf("StartGui\n");
 410 }
 411
 412 static void dummy_lace()
 413 {
 414 }
 415
 416 void SysReset() {
 417         // rearmed hack: EmuReset() runs some code when real BIOS is used,
 418         // but we usually do reset from menu while GPU is not open yet,
 419         // so we need to prevent updateLace() call..
 420         void *real_lace = GPU_updateLace;
 421         GPU_updateLace = dummy_lace;
 422
 423         EmuReset();
 424
 425         // hmh core forgets this
 426         CDR_stop();
 427
 428         GPU_updateLace = real_lace;
 429 }
 430
 431 void SysClose() {
 432         EmuShutdown();
 433         ReleasePlugins();
 434
 435         StopDebugger();
 436
 437         if (emuLog != NULL) fclose(emuLog);
 438 }
 439
 440 void SysUpdate() {
 441 }
 442
 443 void OnFile_Exit() {
 444         printf("OnFile_Exit\n");
 445 #ifndef MAEMO
 446         menu_finish();
 447 #endif
 448         SysClose();
 449         plat_finish();
 450         exit(0);
 451 }
 452
 453 int get_state_filename(char *buf, int size, int i) {
 454         return get_gameid_filename(buf, size,
 455                 "." STATES_DIR "%.32s-%.9s.%3.3d", i);
 456 }
 457
 458 int emu_check_state(int slot)
 459 {
 460         char fname[MAXPATHLEN];
 461         int ret;
 462
 463         ret = get_state_filename(fname, sizeof(fname), slot);
 464         if (ret != 0)
 465                 return ret;
 466
 467         return CheckState(fname);
 468 }
 469
 470 int emu_save_state(int slot)
 471 {
 472         char fname[MAXPATHLEN];
 473         int ret;
 474
 475         ret = get_state_filename(fname, sizeof(fname), slot);
 476         if (ret != 0)
 477                 return ret;
 478
 479         return SaveState(fname);
 480 }
 481
 482 int emu_load_state(int slot)
 483 {
 484         char fname[MAXPATHLEN];
 485         int ret;
 486
 487         ret = get_state_filename(fname, sizeof(fname), slot);
 488         if (ret != 0)
 489                 return ret;
 490
 491         return LoadState(fname);
 492 }
 493
 494 void SysPrintf(const char *fmt, ...) {
 495         va_list list;
 496         char msg[512];
 497
 498         va_start(list, fmt);
 499         vsprintf(msg, fmt, list);
 500         va_end(list);
 501
 502         fprintf(emuLog, "%s", msg);
 503 }
 504
 505 void SysMessage(const char *fmt, ...) {
 506         va_list list;
 507         char msg[512];
 508
 509         va_start(list, fmt);
 510         vsprintf(msg, fmt, list);
 511         va_end(list);
 512
 513         if (msg[strlen(msg) - 1] == '\n')
 514                 msg[strlen(msg) - 1] = 0;
 515
 516         fprintf(stderr, "%s\n", msg);
 517 }
 518
 519 static void SignalExit(int sig) {
 520         ClosePlugins();
 521         OnFile_Exit();
 522 }
 523
 524 #define PARSEPATH(dst, src) \
 525         ptr = src + strlen(src); \
 526         while (*ptr != '\\' && ptr != src) ptr--; \
 527         if (ptr != src) { \
 528                 strcpy(dst, ptr+1); \
 529         }
 530
 531 static int _OpenPlugins(void) {
 532         int ret;
 533
 534         signal(SIGINT, SignalExit);
 535         signal(SIGPIPE, SignalExit);
 536
 537         GPU_clearDynarec(clearDynarec);
 538
 539         ret = CDR_open();
 540         if (ret < 0) { SysMessage(_("Error opening CD-ROM plugin!")); return -1; }
 541         ret = SPU_open();
 542         if (ret < 0) { SysMessage(_("Error opening SPU plugin!")); return -1; }
 543         SPU_registerCallback(SPUirq);
 544         // pcsx-rearmed: we handle gpu elsewhere
 545         //ret = GPU_open(&gpuDisp, "PCSX", NULL);
 546         //if (ret < 0) { SysMessage(_("Error opening GPU plugin!")); return -1; }
 547         ret = PAD1_open(&gpuDisp);
 548         if (ret < 0) { SysMessage(_("Error opening Controller 1 plugin!")); return -1; }
 549         ret = PAD2_open(&gpuDisp);
 550         if (ret < 0) { SysMessage(_("Error opening Controller 2 plugin!")); return -1; }
 551
 552         if (Config.UseNet && !NetOpened) {
 553                 netInfo info;
 554                 char path[MAXPATHLEN];
 555                 char dotdir[MAXPATHLEN];
 556
 557                 MAKE_PATH(dotdir, "/.pcsx/plugins/", NULL);
 558
 559                 strcpy(info.EmuName, "PCSX " PACKAGE_VERSION);
 560                 strncpy(info.CdromID, CdromId, 9);
 561                 strncpy(info.CdromLabel, CdromLabel, 9);
 562                 info.psxMem = psxM;
 563                 info.GPU_showScreenPic = GPU_showScreenPic;
 564                 info.GPU_displayText = GPU_displayText;
 565                 info.GPU_showScreenPic = GPU_showScreenPic;
 566                 info.PAD_setSensitive = PAD1_setSensitive;
 567                 sprintf(path, "%s%s", Config.BiosDir, Config.Bios);
 568                 strcpy(info.BIOSpath, path);
 569                 strcpy(info.MCD1path, Config.Mcd1);
 570                 strcpy(info.MCD2path, Config.Mcd2);
 571                 sprintf(path, "%s%s", dotdir, Config.Gpu);
 572                 strcpy(info.GPUpath, path);
 573                 sprintf(path, "%s%s", dotdir, Config.Spu);
 574                 strcpy(info.SPUpath, path);
 575                 sprintf(path, "%s%s", dotdir, Config.Cdr);
 576                 strcpy(info.CDRpath, path);
 577                 NET_setInfo(&info);
 578
 579                 ret = NET_open(&gpuDisp);
 580                 if (ret < 0) {
 581                         if (ret == -2) {
 582                                 // -2 is returned when something in the info
 583                                 // changed and needs to be synced
 584                                 char *ptr;
 585
 586                                 PARSEPATH(Config.Bios, info.BIOSpath);
 587                                 PARSEPATH(Config.Gpu,  info.GPUpath);
 588                                 PARSEPATH(Config.Spu,  info.SPUpath);
 589                                 PARSEPATH(Config.Cdr,  info.CDRpath);
 590
 591                                 strcpy(Config.Mcd1, info.MCD1path);
 592                                 strcpy(Config.Mcd2, info.MCD2path);
 593                                 return -2;
 594                         } else {
 595                                 Config.UseNet = FALSE;
 596                         }
 597                 } else {
 598                         if (NET_queryPlayer() == 1) {
 599                                 if (SendPcsxInfo() == -1) Config.UseNet = FALSE;
 600                         } else {
 601                                 if (RecvPcsxInfo() == -1) Config.UseNet = FALSE;
 602                         }
 603                 }
 604                 NetOpened = TRUE;
 605         } else if (Config.UseNet) {
 606                 NET_resume();
 607         }
 608
 609         return 0;
 610 }
 611
 612 int OpenPlugins() {
 613         int ret;
 614
 615         while ((ret = _OpenPlugins()) == -2) {
 616                 ReleasePlugins();
 617                 LoadMcds(Config.Mcd1, Config.Mcd2);
 618                 if (LoadPlugins() == -1) return -1;
 619         }
 620         return ret;
 621 }
 622
 623 void ClosePlugins() {
 624         int ret;
 625
 626         signal(SIGINT, SIG_DFL);
 627         signal(SIGPIPE, SIG_DFL);
 628         ret = CDR_close();
 629         if (ret < 0) { SysMessage(_("Error closing CD-ROM plugin!")); return; }
 630         ret = SPU_close();
 631         if (ret < 0) { SysMessage(_("Error closing SPU plugin!")); return; }
 632         ret = PAD1_close();
 633         if (ret < 0) { SysMessage(_("Error closing Controller 1 Plugin!")); return; }
 634         ret = PAD2_close();
 635         if (ret < 0) { SysMessage(_("Error closing Controller 2 plugin!")); return; }
 636         // pcsx-rearmed: we handle gpu elsewhere
 637         //ret = GPU_close();
 638         //if (ret < 0) { SysMessage(_("Error closing GPU plugin!")); return; }
 639
 640         if (Config.UseNet) {
 641                 NET_pause();
 642         }
 643 }
 644
 645 #if 1
 646 /* this is to avoid having to hack every plugin to stop using $HOME */
 647 char *getenv(const char *name)
 648 {
 649         static char ret[8] = ".";
 650
 651         if (name && strcmp(name, "HOME") == 0 &&
 652                         ((int)name >> 28) == 0) // HACK: let libs find home
 653                 return ret;
 654
 655         return real_getenv(name);
 656 }
 657 #endif
 658
 659 /* we hook statically linked plugins here */
 660 static const char *builtin_plugins[] = {
 661         "builtin_gpu", "builtin_spu", "builtin_cdr", "builtin_pad",
 662         "builtin_cdrcimg",
 663 };
 664
 665 static const int builtin_plugin_ids[] = {
 666         PLUGIN_GPU, PLUGIN_SPU, PLUGIN_CDR, PLUGIN_PAD,
 667         PLUGIN_CDRCIMG,
 668 };
 669
 670 void *SysLoadLibrary(const char *lib) {
 671         const char *tmp = strrchr(lib, '/');
 672         void *ret;
 673         int i;
 674
 675         printf("plugin: %s\n", lib);
 676
 677         if (tmp != NULL) {
 678                 tmp++;
 679                 for (i = 0; i < ARRAY_SIZE(builtin_plugins); i++)
 680                         if (strcmp(tmp, builtin_plugins[i]) == 0)
 681                                 return (void *)(long)(PLUGIN_DL_BASE + builtin_plugin_ids[i]);
 682         }
 683
 684 #if defined(__x86_64__) || defined(__i386__)
 685         // convenience hack
 686         char name[MAXPATHLEN];
 687         snprintf(name, sizeof(name), "%s.x86", lib);
 688         lib = name;
 689 #endif
 690
 691         ret = dlopen(lib, RTLD_NOW);
 692         if (ret == NULL)
 693                 fprintf(stderr, "dlopen: %s\n", dlerror());
 694         return ret;
 695 }
 696
 697 void *SysLoadSym(void *lib, const char *sym) {
 698         unsigned int plugid = (unsigned int)(long)lib;
 699
 700         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 701                 return plugin_link(plugid - PLUGIN_DL_BASE, sym);
 702
 703         return dlsym(lib, sym);
 704 }
 705
 706 const char *SysLibError() {
 707         return dlerror();
 708 }
 709
 710 void SysCloseLibrary(void *lib) {
 711         unsigned int plugid = (unsigned int)(long)lib;
 712
 713         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 714                 return;
 715
 716         dlclose(lib);
 717 }
 718