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/readpng.h"
  28 #include "common/input.h"
  29 #include "linux/in_evdev.h"
  30
  31 // don't include debug.h - it breaks ARM build (R1 redefined)
  32 void StartDebugger();
  33 void StopDebugger();
  34
  35 int ready_to_go;
  36 unsigned long gpuDisp;
  37 char cfgfile_basename[MAXPATHLEN];
  38 int state_slot;
  39 enum sched_action emu_action, emu_action_old;
  40 char hud_msg[64];
  41 int hud_new_msg;
  42
  43 static void make_path(char *buf, size_t size, const char *dir, const char *fname)
  44 {
  45         if (fname)
  46                 snprintf(buf, size, ".%s%s", dir, fname);
  47         else
  48                 snprintf(buf, size, ".%s", dir);
  49 }
  50 #define MAKE_PATH(buf, dir, fname) \
  51         make_path(buf, sizeof(buf), dir, fname)
  52
  53 static void create_profile_dir(const char *directory) {
  54         char path[MAXPATHLEN];
  55
  56         MAKE_PATH(path, directory, NULL);
  57         mkdir(path, S_IRWXU | S_IRWXG);
  58 }
  59
  60 static void CheckSubDir() {
  61         // make sure that ~/.pcsx exists
  62         create_profile_dir(PCSX_DOT_DIR);
  63
  64         create_profile_dir(BIOS_DIR);
  65         create_profile_dir(MEMCARD_DIR);
  66         create_profile_dir(STATES_DIR);
  67         create_profile_dir(PLUGINS_DIR);
  68         create_profile_dir(PLUGINS_CFG_DIR);
  69         create_profile_dir(CHEATS_DIR);
  70         create_profile_dir(PATCHES_DIR);
  71         create_profile_dir(PCSX_DOT_DIR "cfg");
  72         create_profile_dir("/screenshots/");
  73 }
  74
  75 static int get_gameid_filename(char *buf, int size, const char *fmt, int i) {
  76         char trimlabel[33];
  77         int j;
  78
  79         strncpy(trimlabel, CdromLabel, 32);
  80         trimlabel[32] = 0;
  81         for (j = 31; j >= 0; j--)
  82                 if (trimlabel[j] == ' ')
  83                         trimlabel[j] = 0;
  84                 else
  85                         continue;
  86
  87         snprintf(buf, size, fmt, trimlabel, CdromId, i);
  88
  89         return 0;
  90 }
  91
  92 void set_cd_image(const char *fname)
  93 {
  94         const char *ext = NULL;
  95
  96         if (fname != NULL)
  97                 ext = strrchr(fname, '.');
  98
  99         if (ext && (
 100             strcasecmp(ext, ".z") == 0 || strcasecmp(ext, ".bz") == 0 ||
 101             strcasecmp(ext, ".znx") == 0 /*|| strcasecmp(ext, ".pbp") == 0*/)) {
 102                 SetIsoFile(NULL);
 103                 cdrcimg_set_fname(fname);
 104                 strcpy(Config.Cdr, "builtin_cdrcimg");
 105         } else {
 106                 SetIsoFile(fname);
 107                 strcpy(Config.Cdr, "builtin_cdr");
 108         }
 109 }
 110
 111 static void set_default_paths(void)
 112 {
 113         MAKE_PATH(Config.Mcd1, MEMCARD_DIR, "card1.mcd");
 114         MAKE_PATH(Config.Mcd2, MEMCARD_DIR, "card2.mcd");
 115         strcpy(Config.BiosDir, "bios");
 116
 117         strcpy(Config.PluginsDir, "plugins");
 118         strcpy(Config.Gpu, "builtin_gpu");
 119         strcpy(Config.Spu, "builtin_spu");
 120         strcpy(Config.Cdr, "builtin_cdr");
 121         strcpy(Config.Pad1, "builtin_pad");
 122         strcpy(Config.Pad2, "builtin_pad");
 123         strcpy(Config.Net, "Disabled");
 124 #if defined(__arm__) && !defined(__ARM_ARCH_7A__) /* XXX */
 125         strcpy(Config.Gpu, "gpuPCSX4ALL.so");
 126 #endif
 127         Config.PsxAuto = 1;
 128
 129         snprintf(Config.PatchesDir, sizeof(Config.PatchesDir), "." PATCHES_DIR);
 130 }
 131
 132 static void check_memcards(void)
 133 {
 134         char buf[MAXPATHLEN];
 135         FILE *f;
 136         int i;
 137
 138         for (i = 1; i <= 9; i++) {
 139                 snprintf(buf, sizeof(buf), ".%scard%d.mcd", MEMCARD_DIR, i);
 140
 141                 f = fopen(buf, "rb");
 142                 if (f == NULL) {
 143                         printf("Creating memcard: %s\n", buf);
 144                         CreateMcd(buf);
 145                 }
 146                 else
 147                         fclose(f);
 148         }
 149 }
 150
 151 void do_emu_action(void)
 152 {
 153         char buf[MAXPATHLEN];
 154         int ret;
 155
 156         emu_action_old = emu_action;
 157
 158         switch (emu_action) {
 159         case SACTION_ENTER_MENU:
 160                 menu_loop();
 161                 return;
 162         case SACTION_LOAD_STATE:
 163                 ret = emu_load_state(state_slot);
 164                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "LOADED" : "FAIL!");
 165                 break;
 166         case SACTION_SAVE_STATE:
 167                 ret = emu_save_state(state_slot);
 168                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "SAVED" : "FAIL!");
 169                 break;
 170         case SACTION_NEXT_SSLOT:
 171                 state_slot++;
 172                 if (state_slot > 9)
 173                         state_slot = 0;
 174                 goto do_state_slot;
 175         case SACTION_PREV_SSLOT:
 176                 state_slot--;
 177                 if (state_slot < 0)
 178                         state_slot = 9;
 179                 goto do_state_slot;
 180         case SACTION_TOGGLE_FSKIP:
 181                 pl_rearmed_cbs.fskip_advice = 0;
 182                 pl_rearmed_cbs.frameskip++;
 183                 if (pl_rearmed_cbs.frameskip > 1)
 184                         pl_rearmed_cbs.frameskip = -1;
 185                 snprintf(hud_msg, sizeof(hud_msg), "FRAMESKIP: %s",
 186                         pl_rearmed_cbs.frameskip == -1 ? "AUTO" :
 187                         pl_rearmed_cbs.frameskip == 0 ? "OFF" : "1" );
 188                 plugin_call_rearmed_cbs();
 189                 break;
 190         case SACTION_SCREENSHOT:
 191                 {
 192                         void *scrbuf;
 193                         int w, h, bpp;
 194                         time_t t = time(NULL);
 195                         struct tm *tb = localtime(&t);
 196                         int ti = tb->tm_yday * 1000000 + tb->tm_hour * 10000 +
 197                                 tb->tm_min * 100 + tb->tm_sec;
 198
 199                         scrbuf = pl_prepare_screenshot(&w, &h, &bpp);
 200                         get_gameid_filename(buf, sizeof(buf),
 201                                 "screenshots/%.32s-%.9s.%d.png", ti);
 202                         ret = -1;
 203                         if (scrbuf != 0 && bpp == 16)
 204                                 ret = writepng(buf, scrbuf, w, h);
 205                         if (ret == 0)
 206                                 snprintf(hud_msg, sizeof(hud_msg), "SCREENSHOT TAKEN");
 207                         break;
 208                 }
 209         default:
 210                 return;
 211         }
 212         hud_new_msg = 3;
 213         return;
 214
 215 do_state_slot:
 216         snprintf(hud_msg, sizeof(hud_msg), "STATE SLOT %d [%s]", state_slot,
 217                 emu_check_state(state_slot) == 0 ? "USED" : "FREE");
 218         hud_new_msg = 3;
 219         printf("* %s\n", hud_msg);
 220 }
 221
 222 int main(int argc, char *argv[])
 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_evdev_init();
 318         //in_probe();
 319         plat_init();
 320         menu_init(); // loads config
 321         pl_init();
 322
 323         if (psxout)
 324                 Config.PsxOut = 1;
 325
 326         if (LoadPlugins() == -1) {
 327                 // FIXME: this recovery doesn't work, just delete bad config and bail out
 328                 // SysMessage("could not load plugins, retrying with defaults\n");
 329                 set_default_paths();
 330                 snprintf(path, sizeof(path), "." PCSX_DOT_DIR "%s", cfgfile_basename);
 331                 remove(path);
 332                 SysMessage("Failed loading plugins!");
 333                 return 1;
 334         }
 335         pcnt_hook_plugins();
 336
 337         if (OpenPlugins() == -1) {
 338                 return 1;
 339         }
 340         plugin_call_rearmed_cbs();
 341
 342         CheckCdrom();
 343         SysReset();
 344
 345         if (file[0] != '\0') {
 346                 if (Load(file) != -1)
 347                         ready_to_go = 1;
 348         } else {
 349                 if (cdfile) {
 350                         if (LoadCdrom() == -1) {
 351                                 ClosePlugins();
 352                                 printf(_("Could not load CD-ROM!\n"));
 353                                 return -1;
 354                         }
 355                         ready_to_go = 1;
 356                 }
 357         }
 358
 359         if (ready_to_go) {
 360                 menu_prepare_emu();
 361
 362                 // If a state has been specified, then load that
 363                 if (loadst) {
 364                         int ret = emu_load_state(loadst - 1);
 365                         printf("%s state %d\n", ret ? "failed to load" : "loaded", loadst);
 366                 }
 367                 if (loadst_f) {
 368                         int ret = LoadState(loadst_f);
 369                         printf("%s state file: %s\n", ret ? "failed to load" : "loaded", loadst_f);
 370                 }
 371         }
 372         else
 373                 menu_loop();
 374
 375         pl_start_watchdog();
 376
 377         while (1)
 378         {
 379                 stop = 0;
 380                 emu_action = SACTION_NONE;
 381
 382                 psxCpu->Execute();
 383                 if (emu_action != SACTION_NONE)
 384                         do_emu_action();
 385         }
 386
 387         return 0;
 388 #endif
 389 }
 390
 391 int SysInit() {
 392         if (EmuInit() == -1) {
 393                 printf("PSX emulator couldn't be initialized.\n");
 394                 return -1;
 395         }
 396
 397         LoadMcds(Config.Mcd1, Config.Mcd2);
 398
 399         if (Config.Debug) {
 400                 StartDebugger();
 401         }
 402
 403         return 0;
 404 }
 405
 406 void SysRunGui() {
 407         printf("SysRunGui\n");
 408 }
 409
 410 void StartGui() {
 411         printf("StartGui\n");
 412 }
 413
 414 static void dummy_lace()
 415 {
 416 }
 417
 418 void SysReset() {
 419         // rearmed hack: EmuReset() runs some code when real BIOS is used,
 420         // but we usually do reset from menu while GPU is not open yet,
 421         // so we need to prevent updateLace() call..
 422         void *real_lace = GPU_updateLace;
 423         GPU_updateLace = dummy_lace;
 424
 425         EmuReset();
 426
 427         // hmh core forgets this
 428         CDR_stop();
 429
 430         GPU_updateLace = real_lace;
 431 }
 432
 433 void SysClose() {
 434         EmuShutdown();
 435         ReleasePlugins();
 436
 437         StopDebugger();
 438
 439         if (emuLog != NULL) fclose(emuLog);
 440 }
 441
 442 void SysUpdate() {
 443 }
 444
 445 void OnFile_Exit() {
 446         printf("OnFile_Exit\n");
 447 #ifndef MAEMO
 448         menu_finish();
 449 #endif
 450         SysClose();
 451         plat_finish();
 452         exit(0);
 453 }
 454
 455 int get_state_filename(char *buf, int size, int i) {
 456         return get_gameid_filename(buf, size,
 457                 "." STATES_DIR "%.32s-%.9s.%3.3d", i);
 458 }
 459
 460 int emu_check_state(int slot)
 461 {
 462         char fname[MAXPATHLEN];
 463         int ret;
 464
 465         ret = get_state_filename(fname, sizeof(fname), slot);
 466         if (ret != 0)
 467                 return ret;
 468
 469         return CheckState(fname);
 470 }
 471
 472 int emu_save_state(int slot)
 473 {
 474         char fname[MAXPATHLEN];
 475         int ret;
 476
 477         ret = get_state_filename(fname, sizeof(fname), slot);
 478         if (ret != 0)
 479                 return ret;
 480
 481         ret = SaveState(fname);
 482         printf("* %s \"%s\" [%d]\n", ret == 0 ? "saved" : "failed to save", fname, slot);
 483         return ret;
 484 }
 485
 486 int emu_load_state(int slot)
 487 {
 488         char fname[MAXPATHLEN];
 489         int ret;
 490
 491         ret = get_state_filename(fname, sizeof(fname), slot);
 492         if (ret != 0)
 493                 return ret;
 494
 495         return LoadState(fname);
 496 }
 497
 498 void SysPrintf(const char *fmt, ...) {
 499         va_list list;
 500         char msg[512];
 501
 502         va_start(list, fmt);
 503         vsprintf(msg, fmt, list);
 504         va_end(list);
 505
 506         fprintf(emuLog, "%s", msg);
 507 }
 508
 509 void SysMessage(const char *fmt, ...) {
 510         va_list list;
 511         char msg[512];
 512
 513         va_start(list, fmt);
 514         vsprintf(msg, fmt, list);
 515         va_end(list);
 516
 517         if (msg[strlen(msg) - 1] == '\n')
 518                 msg[strlen(msg) - 1] = 0;
 519
 520         fprintf(stderr, "%s\n", msg);
 521 }
 522
 523 static void SignalExit(int sig) {
 524         ClosePlugins();
 525         OnFile_Exit();
 526 }
 527
 528 #define PARSEPATH(dst, src) \
 529         ptr = src + strlen(src); \
 530         while (*ptr != '\\' && ptr != src) ptr--; \
 531         if (ptr != src) { \
 532                 strcpy(dst, ptr+1); \
 533         }
 534
 535 static int _OpenPlugins(void) {
 536         int ret;
 537
 538         signal(SIGINT, SignalExit);
 539         signal(SIGPIPE, SignalExit);
 540
 541         GPU_clearDynarec(clearDynarec);
 542
 543         ret = CDR_open();
 544         if (ret < 0) { SysMessage(_("Error opening CD-ROM plugin!")); return -1; }
 545         ret = SPU_open();
 546         if (ret < 0) { SysMessage(_("Error opening SPU plugin!")); return -1; }
 547         SPU_registerCallback(SPUirq);
 548         // pcsx-rearmed: we handle gpu elsewhere
 549         //ret = GPU_open(&gpuDisp, "PCSX", NULL);
 550         //if (ret < 0) { SysMessage(_("Error opening GPU plugin!")); return -1; }
 551         ret = PAD1_open(&gpuDisp);
 552         if (ret < 0) { SysMessage(_("Error opening Controller 1 plugin!")); return -1; }
 553         ret = PAD2_open(&gpuDisp);
 554         if (ret < 0) { SysMessage(_("Error opening Controller 2 plugin!")); return -1; }
 555
 556         if (Config.UseNet && !NetOpened) {
 557                 netInfo info;
 558                 char path[MAXPATHLEN];
 559                 char dotdir[MAXPATHLEN];
 560
 561                 MAKE_PATH(dotdir, "/.pcsx/plugins/", NULL);
 562
 563                 strcpy(info.EmuName, "PCSX " PACKAGE_VERSION);
 564                 strncpy(info.CdromID, CdromId, 9);
 565                 strncpy(info.CdromLabel, CdromLabel, 9);
 566                 info.psxMem = psxM;
 567                 info.GPU_showScreenPic = GPU_showScreenPic;
 568                 info.GPU_displayText = GPU_displayText;
 569                 info.GPU_showScreenPic = GPU_showScreenPic;
 570                 info.PAD_setSensitive = PAD1_setSensitive;
 571                 sprintf(path, "%s%s", Config.BiosDir, Config.Bios);
 572                 strcpy(info.BIOSpath, path);
 573                 strcpy(info.MCD1path, Config.Mcd1);
 574                 strcpy(info.MCD2path, Config.Mcd2);
 575                 sprintf(path, "%s%s", dotdir, Config.Gpu);
 576                 strcpy(info.GPUpath, path);
 577                 sprintf(path, "%s%s", dotdir, Config.Spu);
 578                 strcpy(info.SPUpath, path);
 579                 sprintf(path, "%s%s", dotdir, Config.Cdr);
 580                 strcpy(info.CDRpath, path);
 581                 NET_setInfo(&info);
 582
 583                 ret = NET_open(&gpuDisp);
 584                 if (ret < 0) {
 585                         if (ret == -2) {
 586                                 // -2 is returned when something in the info
 587                                 // changed and needs to be synced
 588                                 char *ptr;
 589
 590                                 PARSEPATH(Config.Bios, info.BIOSpath);
 591                                 PARSEPATH(Config.Gpu,  info.GPUpath);
 592                                 PARSEPATH(Config.Spu,  info.SPUpath);
 593                                 PARSEPATH(Config.Cdr,  info.CDRpath);
 594
 595                                 strcpy(Config.Mcd1, info.MCD1path);
 596                                 strcpy(Config.Mcd2, info.MCD2path);
 597                                 return -2;
 598                         } else {
 599                                 Config.UseNet = FALSE;
 600                         }
 601                 } else {
 602                         if (NET_queryPlayer() == 1) {
 603                                 if (SendPcsxInfo() == -1) Config.UseNet = FALSE;
 604                         } else {
 605                                 if (RecvPcsxInfo() == -1) Config.UseNet = FALSE;
 606                         }
 607                 }
 608                 NetOpened = TRUE;
 609         } else if (Config.UseNet) {
 610                 NET_resume();
 611         }
 612
 613         return 0;
 614 }
 615
 616 int OpenPlugins() {
 617         int ret;
 618
 619         while ((ret = _OpenPlugins()) == -2) {
 620                 ReleasePlugins();
 621                 LoadMcds(Config.Mcd1, Config.Mcd2);
 622                 if (LoadPlugins() == -1) return -1;
 623         }
 624         return ret;
 625 }
 626
 627 void ClosePlugins() {
 628         int ret;
 629
 630         signal(SIGINT, SIG_DFL);
 631         signal(SIGPIPE, SIG_DFL);
 632         ret = CDR_close();
 633         if (ret < 0) { SysMessage(_("Error closing CD-ROM plugin!")); return; }
 634         ret = SPU_close();
 635         if (ret < 0) { SysMessage(_("Error closing SPU plugin!")); return; }
 636         ret = PAD1_close();
 637         if (ret < 0) { SysMessage(_("Error closing Controller 1 Plugin!")); return; }
 638         ret = PAD2_close();
 639         if (ret < 0) { SysMessage(_("Error closing Controller 2 plugin!")); return; }
 640         // pcsx-rearmed: we handle gpu elsewhere
 641         //ret = GPU_close();
 642         //if (ret < 0) { SysMessage(_("Error closing GPU plugin!")); return; }
 643
 644         if (Config.UseNet) {
 645                 NET_pause();
 646         }
 647 }
 648
 649 /* we hook statically linked plugins here */
 650 static const char *builtin_plugins[] = {
 651         "builtin_gpu", "builtin_spu", "builtin_cdr", "builtin_pad",
 652         "builtin_cdrcimg",
 653 };
 654
 655 static const int builtin_plugin_ids[] = {
 656         PLUGIN_GPU, PLUGIN_SPU, PLUGIN_CDR, PLUGIN_PAD,
 657         PLUGIN_CDRCIMG,
 658 };
 659
 660 void *SysLoadLibrary(const char *lib) {
 661         const char *tmp = strrchr(lib, '/');
 662         void *ret;
 663         int i;
 664
 665         printf("plugin: %s\n", lib);
 666
 667         if (tmp != NULL) {
 668                 tmp++;
 669                 for (i = 0; i < ARRAY_SIZE(builtin_plugins); i++)
 670                         if (strcmp(tmp, builtin_plugins[i]) == 0)
 671                                 return (void *)(long)(PLUGIN_DL_BASE + builtin_plugin_ids[i]);
 672         }
 673
 674 #if defined(__x86_64__) || defined(__i386__)
 675         // convenience hack
 676         char name[MAXPATHLEN];
 677         snprintf(name, sizeof(name), "%s.x86", lib);
 678         lib = name;
 679 #endif
 680
 681         ret = dlopen(lib, RTLD_NOW);
 682         if (ret == NULL)
 683                 fprintf(stderr, "dlopen: %s\n", dlerror());
 684         return ret;
 685 }
 686
 687 void *SysLoadSym(void *lib, const char *sym) {
 688         unsigned int plugid = (unsigned int)(long)lib;
 689
 690         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 691                 return plugin_link(plugid - PLUGIN_DL_BASE, sym);
 692
 693         return dlsym(lib, sym);
 694 }
 695
 696 const char *SysLibError() {
 697         return dlerror();
 698 }
 699
 700 void SysCloseLibrary(void *lib) {
 701         unsigned int plugid = (unsigned int)(long)lib;
 702
 703         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 704                 return;
 705
 706         dlclose(lib);
 707 }
 708