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 // don't include debug.h - it breaks ARM build (R1 redefined)
  31 void StartDebugger();
  32 void StopDebugger();
  33
  34 int ready_to_go;
  35 unsigned long gpuDisp;
  36 char cfgfile_basename[MAXPATHLEN];
  37 int state_slot;
  38 enum sched_action emu_action, emu_action_old;
  39 char hud_msg[64];
  40 int hud_new_msg;
  41
  42 static void make_path(char *buf, size_t size, const char *dir, const char *fname)
  43 {
  44         if (fname)
  45                 snprintf(buf, size, ".%s%s", dir, fname);
  46         else
  47                 snprintf(buf, size, ".%s", dir);
  48 }
  49 #define MAKE_PATH(buf, dir, fname) \
  50         make_path(buf, sizeof(buf), dir, fname)
  51
  52 static void create_profile_dir(const char *directory) {
  53         char path[MAXPATHLEN];
  54
  55         MAKE_PATH(path, directory, NULL);
  56         mkdir(path, S_IRWXU | S_IRWXG);
  57 }
  58
  59 static void CheckSubDir() {
  60         // make sure that ~/.pcsx exists
  61         create_profile_dir(PCSX_DOT_DIR);
  62
  63         create_profile_dir(BIOS_DIR);
  64         create_profile_dir(MEMCARD_DIR);
  65         create_profile_dir(STATES_DIR);
  66         create_profile_dir(PLUGINS_DIR);
  67         create_profile_dir(PLUGINS_CFG_DIR);
  68         create_profile_dir(CHEATS_DIR);
  69         create_profile_dir(PATCHES_DIR);
  70         create_profile_dir(PCSX_DOT_DIR "cfg");
  71         create_profile_dir("/screenshots/");
  72 }
  73
  74 static int get_gameid_filename(char *buf, int size, const char *fmt, int i) {
  75         char trimlabel[33];
  76         int j;
  77
  78         strncpy(trimlabel, CdromLabel, 32);
  79         trimlabel[32] = 0;
  80         for (j = 31; j >= 0; j--)
  81                 if (trimlabel[j] == ' ')
  82                         trimlabel[j] = 0;
  83                 else
  84                         continue;
  85
  86         snprintf(buf, size, fmt, trimlabel, CdromId, i);
  87
  88         return 0;
  89 }
  90
  91 void set_cd_image(const char *fname)
  92 {
  93         const char *ext = NULL;
  94
  95         if (fname != NULL)
  96                 ext = strrchr(fname, '.');
  97
  98         if (ext && (
  99             strcasecmp(ext, ".z") == 0 || strcasecmp(ext, ".bz") == 0 ||
 100             strcasecmp(ext, ".znx") == 0 /*|| strcasecmp(ext, ".pbp") == 0*/)) {
 101                 SetIsoFile(NULL);
 102                 cdrcimg_set_fname(fname);
 103                 strcpy(Config.Cdr, "builtin_cdrcimg");
 104         } else {
 105                 SetIsoFile(fname);
 106                 strcpy(Config.Cdr, "builtin_cdr");
 107         }
 108 }
 109
 110 static void set_default_paths(void)
 111 {
 112         MAKE_PATH(Config.Mcd1, MEMCARD_DIR, "card1.mcd");
 113         MAKE_PATH(Config.Mcd2, MEMCARD_DIR, "card2.mcd");
 114         strcpy(Config.BiosDir, "bios");
 115
 116         strcpy(Config.PluginsDir, "plugins");
 117         strcpy(Config.Gpu, "builtin_gpu");
 118         strcpy(Config.Spu, "builtin_spu");
 119         strcpy(Config.Cdr, "builtin_cdr");
 120         strcpy(Config.Pad1, "builtin_pad");
 121         strcpy(Config.Pad2, "builtin_pad");
 122         strcpy(Config.Net, "Disabled");
 123 #if defined(__arm__) && !defined(__ARM_ARCH_7A__) /* XXX */
 124         strcpy(Config.Gpu, "gpuPCSX4ALL.so");
 125 #endif
 126         Config.PsxAuto = 1;
 127
 128         snprintf(Config.PatchesDir, sizeof(Config.PatchesDir), "." PATCHES_DIR);
 129 }
 130
 131 static void check_memcards(void)
 132 {
 133         char buf[MAXPATHLEN];
 134         FILE *f;
 135         int i;
 136
 137         for (i = 1; i <= 9; i++) {
 138                 snprintf(buf, sizeof(buf), ".%scard%d.mcd", MEMCARD_DIR, i);
 139
 140                 f = fopen(buf, "rb");
 141                 if (f == NULL) {
 142                         printf("Creating memcard: %s\n", buf);
 143                         CreateMcd(buf);
 144                 }
 145                 else
 146                         fclose(f);
 147         }
 148 }
 149
 150 void do_emu_action(void)
 151 {
 152         char buf[MAXPATHLEN];
 153         int ret;
 154
 155         emu_action_old = emu_action;
 156
 157         switch (emu_action) {
 158         case SACTION_ENTER_MENU:
 159                 menu_loop();
 160                 return;
 161         case SACTION_LOAD_STATE:
 162                 ret = emu_load_state(state_slot);
 163                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "LOADED" : "FAIL!");
 164                 break;
 165         case SACTION_SAVE_STATE:
 166                 ret = emu_save_state(state_slot);
 167                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "SAVED" : "FAIL!");
 168                 break;
 169         case SACTION_NEXT_SSLOT:
 170                 state_slot++;
 171                 if (state_slot > 9)
 172                         state_slot = 0;
 173                 goto do_state_slot;
 174         case SACTION_PREV_SSLOT:
 175                 state_slot--;
 176                 if (state_slot < 0)
 177                         state_slot = 9;
 178                 goto do_state_slot;
 179         case SACTION_TOGGLE_FSKIP:
 180                 pl_rearmed_cbs.fskip_advice = 0;
 181                 pl_rearmed_cbs.frameskip++;
 182                 if (pl_rearmed_cbs.frameskip > 1)
 183                         pl_rearmed_cbs.frameskip = -1;
 184                 snprintf(hud_msg, sizeof(hud_msg), "FRAMESKIP: %s",
 185                         pl_rearmed_cbs.frameskip == -1 ? "AUTO" :
 186                         pl_rearmed_cbs.frameskip == 0 ? "OFF" : "1" );
 187                 plugin_call_rearmed_cbs();
 188                 break;
 189         case SACTION_SCREENSHOT:
 190                 {
 191                         void *scrbuf;
 192                         int w, h, bpp;
 193                         time_t t = time(NULL);
 194                         struct tm *tb = localtime(&t);
 195                         int ti = tb->tm_yday * 1000000 + tb->tm_hour * 10000 +
 196                                 tb->tm_min * 100 + tb->tm_sec;
 197
 198                         scrbuf = pl_prepare_screenshot(&w, &h, &bpp);
 199                         get_gameid_filename(buf, sizeof(buf),
 200                                 "screenshots/%.32s-%.9s.%d.png", ti);
 201                         ret = -1;
 202                         if (scrbuf != 0 && bpp == 16)
 203                                 ret = writepng(buf, scrbuf, w, h);
 204                         if (ret == 0)
 205                                 snprintf(hud_msg, sizeof(hud_msg), "SCREENSHOT TAKEN");
 206                         break;
 207                 }
 208         default:
 209                 return;
 210         }
 211         hud_new_msg = 3;
 212         return;
 213
 214 do_state_slot:
 215         snprintf(hud_msg, sizeof(hud_msg), "STATE SLOT %d [%s]", state_slot,
 216                 emu_check_state(state_slot) == 0 ? "USED" : "FREE");
 217         hud_new_msg = 3;
 218         printf("* %s\n", hud_msg);
 219 }
 220
 221 int main(int argc, char *argv[])
 222 {
 223         // what is the name of the config file?
 224         // it may be redefined by -cfg on the command line
 225         strcpy(cfgfile_basename, "pcsx.cfg");
 226
 227         emuLog = stdout;
 228         SetIsoFile(NULL);
 229
 230         memset(&Config, 0, sizeof(Config));
 231
 232         CheckSubDir();
 233         set_default_paths();
 234         check_memcards();
 235         strcpy(Config.Bios, "HLE");
 236
 237 #ifdef MAEMO
 238         extern int maemo_main(int argc, char **argv);
 239         return maemo_main(argc, argv);
 240 #else
 241         char file[MAXPATHLEN] = "";
 242         char path[MAXPATHLEN];
 243         const char *cdfile = NULL;
 244         const char *loadst_f = NULL;
 245         int psxout = 0;
 246         int loadst = 0;
 247         int i;
 248
 249         // read command line options
 250         for (i = 1; i < argc; i++) {
 251                      if (!strcmp(argv[i], "-psxout")) psxout = 1;
 252                 else if (!strcmp(argv[i], "-load")) loadst = atol(argv[++i]);
 253                 else if (!strcmp(argv[i], "-cfg")) {
 254                         if (i+1 >= argc) break;
 255                         strncpy(cfgfile_basename, argv[++i], MAXPATHLEN-100);   /* TODO buffer overruns */
 256                         printf("Using config file %s.\n", cfgfile_basename);
 257                 }
 258                 else if (!strcmp(argv[i], "-cdfile")) {
 259                         char isofilename[MAXPATHLEN];
 260
 261                         if (i+1 >= argc) break;
 262                         strncpy(isofilename, argv[++i], MAXPATHLEN);
 263                         if (isofilename[0] != '/') {
 264                                 getcwd(path, MAXPATHLEN);
 265                                 if (strlen(path) + strlen(isofilename) + 1 < MAXPATHLEN) {
 266                                         strcat(path, "/");
 267                                         strcat(path, isofilename);
 268                                         strcpy(isofilename, path);
 269                                 } else
 270                                         isofilename[0] = 0;
 271                         }
 272
 273                         cdfile = isofilename;
 274                 }
 275                 else if (!strcmp(argv[i], "-loadf")) {
 276                         if (i+1 >= argc) break;
 277                         loadst_f = argv[++i];
 278                 }
 279                 else if (!strcmp(argv[i], "-h") ||
 280                          !strcmp(argv[i], "-help") ||
 281                          !strcmp(argv[i], "--help")) {
 282                          printf(PACKAGE_NAME " " PACKAGE_VERSION "\n");
 283                          printf("%s\n", _(
 284                                                         " pcsx [options] [file]\n"
 285                                                         "\toptions:\n"
 286                                                         "\t-cdfile FILE\tRuns a CD image file\n"
 287                                                         "\t-nogui\t\tDon't open the GTK GUI\n"
 288                                                         "\t-cfg FILE\tLoads desired configuration file (default: ~/.pcsx/pcsx.cfg)\n"
 289                                                         "\t-psxout\t\tEnable PSX output\n"
 290                                                         "\t-load STATENUM\tLoads savestate STATENUM (1-5)\n"
 291                                                         "\t-h -help\tDisplay this message\n"
 292                                                         "\tfile\t\tLoads file\n"));
 293                          return 0;
 294                 } else {
 295                         strncpy(file, argv[i], MAXPATHLEN);
 296                         if (file[0] != '/') {
 297                                 getcwd(path, MAXPATHLEN);
 298                                 if (strlen(path) + strlen(file) + 1 < MAXPATHLEN) {
 299                                         strcat(path, "/");
 300                                         strcat(path, file);
 301                                         strcpy(file, path);
 302                                 } else
 303                                         file[0] = 0;
 304                         }
 305                 }
 306         }
 307
 308         if (cdfile)
 309                 set_cd_image(cdfile);
 310
 311         if (SysInit() == -1)
 312                 return 1;
 313
 314         // frontend stuff
 315         in_init();
 316         //in_probe();
 317         plat_init();
 318         menu_init(); // loads config
 319         pl_init();
 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         ret = SaveState(fname);
 480         printf("* %s \"%s\" [%d]\n", ret == 0 ? "saved" : "failed to save", fname, slot);
 481         return ret;
 482 }
 483
 484 int emu_load_state(int slot)
 485 {
 486         char fname[MAXPATHLEN];
 487         int ret;
 488
 489         ret = get_state_filename(fname, sizeof(fname), slot);
 490         if (ret != 0)
 491                 return ret;
 492
 493         return LoadState(fname);
 494 }
 495
 496 void SysPrintf(const char *fmt, ...) {
 497         va_list list;
 498         char msg[512];
 499
 500         va_start(list, fmt);
 501         vsprintf(msg, fmt, list);
 502         va_end(list);
 503
 504         fprintf(emuLog, "%s", msg);
 505 }
 506
 507 void SysMessage(const char *fmt, ...) {
 508         va_list list;
 509         char msg[512];
 510
 511         va_start(list, fmt);
 512         vsprintf(msg, fmt, list);
 513         va_end(list);
 514
 515         if (msg[strlen(msg) - 1] == '\n')
 516                 msg[strlen(msg) - 1] = 0;
 517
 518         fprintf(stderr, "%s\n", msg);
 519 }
 520
 521 static void SignalExit(int sig) {
 522         ClosePlugins();
 523         OnFile_Exit();
 524 }
 525
 526 #define PARSEPATH(dst, src) \
 527         ptr = src + strlen(src); \
 528         while (*ptr != '\\' && ptr != src) ptr--; \
 529         if (ptr != src) { \
 530                 strcpy(dst, ptr+1); \
 531         }
 532
 533 static int _OpenPlugins(void) {
 534         int ret;
 535
 536         signal(SIGINT, SignalExit);
 537         signal(SIGPIPE, SignalExit);
 538
 539         GPU_clearDynarec(clearDynarec);
 540
 541         ret = CDR_open();
 542         if (ret < 0) { SysMessage(_("Error opening CD-ROM plugin!")); return -1; }
 543         ret = SPU_open();
 544         if (ret < 0) { SysMessage(_("Error opening SPU plugin!")); return -1; }
 545         SPU_registerCallback(SPUirq);
 546         // pcsx-rearmed: we handle gpu elsewhere
 547         //ret = GPU_open(&gpuDisp, "PCSX", NULL);
 548         //if (ret < 0) { SysMessage(_("Error opening GPU plugin!")); return -1; }
 549         ret = PAD1_open(&gpuDisp);
 550         if (ret < 0) { SysMessage(_("Error opening Controller 1 plugin!")); return -1; }
 551         ret = PAD2_open(&gpuDisp);
 552         if (ret < 0) { SysMessage(_("Error opening Controller 2 plugin!")); return -1; }
 553
 554         if (Config.UseNet && !NetOpened) {
 555                 netInfo info;
 556                 char path[MAXPATHLEN];
 557                 char dotdir[MAXPATHLEN];
 558
 559                 MAKE_PATH(dotdir, "/.pcsx/plugins/", NULL);
 560
 561                 strcpy(info.EmuName, "PCSX " PACKAGE_VERSION);
 562                 strncpy(info.CdromID, CdromId, 9);
 563                 strncpy(info.CdromLabel, CdromLabel, 9);
 564                 info.psxMem = psxM;
 565                 info.GPU_showScreenPic = GPU_showScreenPic;
 566                 info.GPU_displayText = GPU_displayText;
 567                 info.GPU_showScreenPic = GPU_showScreenPic;
 568                 info.PAD_setSensitive = PAD1_setSensitive;
 569                 sprintf(path, "%s%s", Config.BiosDir, Config.Bios);
 570                 strcpy(info.BIOSpath, path);
 571                 strcpy(info.MCD1path, Config.Mcd1);
 572                 strcpy(info.MCD2path, Config.Mcd2);
 573                 sprintf(path, "%s%s", dotdir, Config.Gpu);
 574                 strcpy(info.GPUpath, path);
 575                 sprintf(path, "%s%s", dotdir, Config.Spu);
 576                 strcpy(info.SPUpath, path);
 577                 sprintf(path, "%s%s", dotdir, Config.Cdr);
 578                 strcpy(info.CDRpath, path);
 579                 NET_setInfo(&info);
 580
 581                 ret = NET_open(&gpuDisp);
 582                 if (ret < 0) {
 583                         if (ret == -2) {
 584                                 // -2 is returned when something in the info
 585                                 // changed and needs to be synced
 586                                 char *ptr;
 587
 588                                 PARSEPATH(Config.Bios, info.BIOSpath);
 589                                 PARSEPATH(Config.Gpu,  info.GPUpath);
 590                                 PARSEPATH(Config.Spu,  info.SPUpath);
 591                                 PARSEPATH(Config.Cdr,  info.CDRpath);
 592
 593                                 strcpy(Config.Mcd1, info.MCD1path);
 594                                 strcpy(Config.Mcd2, info.MCD2path);
 595                                 return -2;
 596                         } else {
 597                                 Config.UseNet = FALSE;
 598                         }
 599                 } else {
 600                         if (NET_queryPlayer() == 1) {
 601                                 if (SendPcsxInfo() == -1) Config.UseNet = FALSE;
 602                         } else {
 603                                 if (RecvPcsxInfo() == -1) Config.UseNet = FALSE;
 604                         }
 605                 }
 606                 NetOpened = TRUE;
 607         } else if (Config.UseNet) {
 608                 NET_resume();
 609         }
 610
 611         return 0;
 612 }
 613
 614 int OpenPlugins() {
 615         int ret;
 616
 617         while ((ret = _OpenPlugins()) == -2) {
 618                 ReleasePlugins();
 619                 LoadMcds(Config.Mcd1, Config.Mcd2);
 620                 if (LoadPlugins() == -1) return -1;
 621         }
 622         return ret;
 623 }
 624
 625 void ClosePlugins() {
 626         int ret;
 627
 628         signal(SIGINT, SIG_DFL);
 629         signal(SIGPIPE, SIG_DFL);
 630         ret = CDR_close();
 631         if (ret < 0) { SysMessage(_("Error closing CD-ROM plugin!")); return; }
 632         ret = SPU_close();
 633         if (ret < 0) { SysMessage(_("Error closing SPU plugin!")); return; }
 634         ret = PAD1_close();
 635         if (ret < 0) { SysMessage(_("Error closing Controller 1 Plugin!")); return; }
 636         ret = PAD2_close();
 637         if (ret < 0) { SysMessage(_("Error closing Controller 2 plugin!")); return; }
 638         // pcsx-rearmed: we handle gpu elsewhere
 639         //ret = GPU_close();
 640         //if (ret < 0) { SysMessage(_("Error closing GPU plugin!")); return; }
 641
 642         if (Config.UseNet) {
 643                 NET_pause();
 644         }
 645 }
 646
 647 /* we hook statically linked plugins here */
 648 static const char *builtin_plugins[] = {
 649         "builtin_gpu", "builtin_spu", "builtin_cdr", "builtin_pad",
 650         "builtin_cdrcimg",
 651 };
 652
 653 static const int builtin_plugin_ids[] = {
 654         PLUGIN_GPU, PLUGIN_SPU, PLUGIN_CDR, PLUGIN_PAD,
 655         PLUGIN_CDRCIMG,
 656 };
 657
 658 void *SysLoadLibrary(const char *lib) {
 659         const char *tmp = strrchr(lib, '/');
 660         void *ret;
 661         int i;
 662
 663         printf("plugin: %s\n", lib);
 664
 665         if (tmp != NULL) {
 666                 tmp++;
 667                 for (i = 0; i < ARRAY_SIZE(builtin_plugins); i++)
 668                         if (strcmp(tmp, builtin_plugins[i]) == 0)
 669                                 return (void *)(long)(PLUGIN_DL_BASE + builtin_plugin_ids[i]);
 670         }
 671
 672 #if defined(__x86_64__) || defined(__i386__)
 673         // convenience hack
 674         char name[MAXPATHLEN];
 675         snprintf(name, sizeof(name), "%s.x86", lib);
 676         lib = name;
 677 #endif
 678
 679         ret = dlopen(lib, RTLD_NOW);
 680         if (ret == NULL)
 681                 fprintf(stderr, "dlopen: %s\n", dlerror());
 682         return ret;
 683 }
 684
 685 void *SysLoadSym(void *lib, const char *sym) {
 686         unsigned int plugid = (unsigned int)(long)lib;
 687
 688         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 689                 return plugin_link(plugid - PLUGIN_DL_BASE, sym);
 690
 691         return dlsym(lib, sym);
 692 }
 693
 694 const char *SysLibError() {
 695         return dlerror();
 696 }
 697
 698 void SysCloseLibrary(void *lib) {
 699         unsigned int plugid = (unsigned int)(long)lib;
 700
 701         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 702                 return;
 703
 704         dlclose(lib);
 705 }
 706