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 "plat.h"
  24 #include "../libpcsxcore/misc.h"
  25 #include "../libpcsxcore/new_dynarec/new_dynarec.h"
  26 #include "../plugins/cdrcimg/cdrcimg.h"
  27 #include "common/plat.h"
  28 #include "common/readpng.h"
  29 #include "common/input.h"
  30 #include "linux/in_evdev.h"
  31
  32 // don't include debug.h - it breaks ARM build (R1 redefined)
  33 void StartDebugger();
  34 void StopDebugger();
  35
  36 int ready_to_go;
  37 unsigned long gpuDisp;
  38 char cfgfile_basename[MAXPATHLEN];
  39 int state_slot;
  40 enum sched_action emu_action, emu_action_old;
  41 char hud_msg[64];
  42 int hud_new_msg;
  43
  44 static void make_path(char *buf, size_t size, const char *dir, const char *fname)
  45 {
  46         if (fname)
  47                 snprintf(buf, size, ".%s%s", dir, fname);
  48         else
  49                 snprintf(buf, size, ".%s", dir);
  50 }
  51 #define MAKE_PATH(buf, dir, fname) \
  52         make_path(buf, sizeof(buf), dir, fname)
  53
  54 static void create_profile_dir(const char *directory) {
  55         char path[MAXPATHLEN];
  56
  57         MAKE_PATH(path, directory, NULL);
  58         mkdir(path, S_IRWXU | S_IRWXG);
  59 }
  60
  61 static void CheckSubDir() {
  62         // make sure that ~/.pcsx exists
  63         create_profile_dir(PCSX_DOT_DIR);
  64
  65         create_profile_dir(BIOS_DIR);
  66         create_profile_dir(MEMCARD_DIR);
  67         create_profile_dir(STATES_DIR);
  68         create_profile_dir(PLUGINS_DIR);
  69         create_profile_dir(PLUGINS_CFG_DIR);
  70         create_profile_dir(CHEATS_DIR);
  71         create_profile_dir(PATCHES_DIR);
  72         create_profile_dir(PCSX_DOT_DIR "cfg");
  73         create_profile_dir("/screenshots/");
  74 }
  75
  76 static int get_gameid_filename(char *buf, int size, const char *fmt, int i) {
  77         char trimlabel[33];
  78         int j;
  79
  80         strncpy(trimlabel, CdromLabel, 32);
  81         trimlabel[32] = 0;
  82         for (j = 31; j >= 0; j--)
  83                 if (trimlabel[j] == ' ')
  84                         trimlabel[j] = 0;
  85                 else
  86                         continue;
  87
  88         snprintf(buf, size, fmt, trimlabel, CdromId, i);
  89
  90         return 0;
  91 }
  92
  93 void set_cd_image(const char *fname)
  94 {
  95         const char *ext = NULL;
  96
  97         if (fname != NULL)
  98                 ext = strrchr(fname, '.');
  99
 100         if (ext && (
 101             strcasecmp(ext, ".z") == 0 || strcasecmp(ext, ".bz") == 0 ||
 102             strcasecmp(ext, ".znx") == 0 /*|| strcasecmp(ext, ".pbp") == 0*/)) {
 103                 SetIsoFile(NULL);
 104                 cdrcimg_set_fname(fname);
 105                 strcpy(Config.Cdr, "builtin_cdrcimg");
 106         } else {
 107                 SetIsoFile(fname);
 108                 strcpy(Config.Cdr, "builtin_cdr");
 109         }
 110 }
 111
 112 static void set_default_paths(void)
 113 {
 114         MAKE_PATH(Config.Mcd1, MEMCARD_DIR, "card1.mcd");
 115         MAKE_PATH(Config.Mcd2, MEMCARD_DIR, "card2.mcd");
 116         strcpy(Config.BiosDir, "bios");
 117
 118         strcpy(Config.PluginsDir, "plugins");
 119         strcpy(Config.Gpu, "builtin_gpu");
 120         strcpy(Config.Spu, "builtin_spu");
 121         strcpy(Config.Cdr, "builtin_cdr");
 122         strcpy(Config.Pad1, "builtin_pad");
 123         strcpy(Config.Pad2, "builtin_pad");
 124         strcpy(Config.Net, "Disabled");
 125 #if defined(__arm__) && !defined(__ARM_ARCH_7A__) /* XXX */
 126         strcpy(Config.Gpu, "gpuPCSX4ALL.so");
 127 #endif
 128         Config.PsxAuto = 1;
 129
 130         snprintf(Config.PatchesDir, sizeof(Config.PatchesDir), "." PATCHES_DIR);
 131 }
 132
 133 static void check_memcards(void)
 134 {
 135         char buf[MAXPATHLEN];
 136         FILE *f;
 137         int i;
 138
 139         for (i = 1; i <= 9; i++) {
 140                 snprintf(buf, sizeof(buf), ".%scard%d.mcd", MEMCARD_DIR, i);
 141
 142                 f = fopen(buf, "rb");
 143                 if (f == NULL) {
 144                         printf("Creating memcard: %s\n", buf);
 145                         CreateMcd(buf);
 146                 }
 147                 else
 148                         fclose(f);
 149         }
 150 }
 151
 152 void do_emu_action(void)
 153 {
 154         char buf[MAXPATHLEN];
 155         int ret;
 156
 157         emu_action_old = emu_action;
 158
 159         switch (emu_action) {
 160         case SACTION_ENTER_MENU:
 161                 menu_loop();
 162                 return;
 163         case SACTION_LOAD_STATE:
 164                 ret = emu_load_state(state_slot);
 165                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "LOADED" : "FAIL!");
 166                 break;
 167         case SACTION_SAVE_STATE:
 168                 ret = emu_save_state(state_slot);
 169                 snprintf(hud_msg, sizeof(hud_msg), ret == 0 ? "SAVED" : "FAIL!");
 170                 break;
 171         case SACTION_NEXT_SSLOT:
 172                 state_slot++;
 173                 if (state_slot > 9)
 174                         state_slot = 0;
 175                 goto do_state_slot;
 176         case SACTION_PREV_SSLOT:
 177                 state_slot--;
 178                 if (state_slot < 0)
 179                         state_slot = 9;
 180                 goto do_state_slot;
 181         case SACTION_TOGGLE_FSKIP:
 182                 pl_rearmed_cbs.fskip_advice = 0;
 183                 pl_rearmed_cbs.frameskip++;
 184                 if (pl_rearmed_cbs.frameskip > 1)
 185                         pl_rearmed_cbs.frameskip = -1;
 186                 snprintf(hud_msg, sizeof(hud_msg), "FRAMESKIP: %s",
 187                         pl_rearmed_cbs.frameskip == -1 ? "AUTO" :
 188                         pl_rearmed_cbs.frameskip == 0 ? "OFF" : "1" );
 189                 plugin_call_rearmed_cbs();
 190                 break;
 191         case SACTION_SCREENSHOT:
 192                 {
 193                         void *scrbuf;
 194                         int w, h, bpp;
 195                         time_t t = time(NULL);
 196                         struct tm *tb = localtime(&t);
 197                         int ti = tb->tm_yday * 1000000 + tb->tm_hour * 10000 +
 198                                 tb->tm_min * 100 + tb->tm_sec;
 199
 200                         scrbuf = pl_prepare_screenshot(&w, &h, &bpp);
 201                         get_gameid_filename(buf, sizeof(buf),
 202                                 "screenshots/%.32s-%.9s.%d.png", ti);
 203                         ret = -1;
 204                         if (scrbuf != 0 && bpp == 16)
 205                                 ret = writepng(buf, scrbuf, w, h);
 206                         if (ret == 0)
 207                                 snprintf(hud_msg, sizeof(hud_msg), "SCREENSHOT TAKEN");
 208                         break;
 209                 }
 210         default:
 211                 return;
 212         }
 213         hud_new_msg = 3;
 214         return;
 215
 216 do_state_slot:
 217         snprintf(hud_msg, sizeof(hud_msg), "STATE SLOT %d [%s]", state_slot,
 218                 emu_check_state(state_slot) == 0 ? "USED" : "FREE");
 219         hud_new_msg = 3;
 220         printf("* %s\n", hud_msg);
 221 }
 222
 223 int main(int argc, char *argv[])
 224 {
 225         // what is the name of the config file?
 226         // it may be redefined by -cfg on the command line
 227         strcpy(cfgfile_basename, "pcsx.cfg");
 228
 229         emuLog = stdout;
 230         SetIsoFile(NULL);
 231
 232         memset(&Config, 0, sizeof(Config));
 233
 234         CheckSubDir();
 235         set_default_paths();
 236         check_memcards();
 237         strcpy(Config.Bios, "HLE");
 238
 239 #ifdef MAEMO
 240         extern int maemo_main(int argc, char **argv);
 241         return maemo_main(argc, argv);
 242 #else
 243         char file[MAXPATHLEN] = "";
 244         char path[MAXPATHLEN];
 245         const char *cdfile = NULL;
 246         const char *loadst_f = NULL;
 247         int psxout = 0;
 248         int loadst = 0;
 249         int i;
 250
 251         // read command line options
 252         for (i = 1; i < argc; i++) {
 253                      if (!strcmp(argv[i], "-psxout")) psxout = 1;
 254                 else if (!strcmp(argv[i], "-load")) loadst = atol(argv[++i]);
 255                 else if (!strcmp(argv[i], "-cfg")) {
 256                         if (i+1 >= argc) break;
 257                         strncpy(cfgfile_basename, argv[++i], MAXPATHLEN-100);   /* TODO buffer overruns */
 258                         printf("Using config file %s.\n", cfgfile_basename);
 259                 }
 260                 else if (!strcmp(argv[i], "-cdfile")) {
 261                         char isofilename[MAXPATHLEN];
 262
 263                         if (i+1 >= argc) break;
 264                         strncpy(isofilename, argv[++i], MAXPATHLEN);
 265                         if (isofilename[0] != '/') {
 266                                 getcwd(path, MAXPATHLEN);
 267                                 if (strlen(path) + strlen(isofilename) + 1 < MAXPATHLEN) {
 268                                         strcat(path, "/");
 269                                         strcat(path, isofilename);
 270                                         strcpy(isofilename, path);
 271                                 } else
 272                                         isofilename[0] = 0;
 273                         }
 274
 275                         cdfile = isofilename;
 276                 }
 277                 else if (!strcmp(argv[i], "-loadf")) {
 278                         if (i+1 >= argc) break;
 279                         loadst_f = argv[++i];
 280                 }
 281                 else if (!strcmp(argv[i], "-h") ||
 282                          !strcmp(argv[i], "-help") ||
 283                          !strcmp(argv[i], "--help")) {
 284                          printf(PACKAGE_NAME " " PACKAGE_VERSION "\n");
 285                          printf("%s\n", _(
 286                                                         " pcsx [options] [file]\n"
 287                                                         "\toptions:\n"
 288                                                         "\t-cdfile FILE\tRuns a CD image file\n"
 289                                                         "\t-nogui\t\tDon't open the GTK GUI\n"
 290                                                         "\t-cfg FILE\tLoads desired configuration file (default: ~/.pcsx/pcsx.cfg)\n"
 291                                                         "\t-psxout\t\tEnable PSX output\n"
 292                                                         "\t-load STATENUM\tLoads savestate STATENUM (1-5)\n"
 293                                                         "\t-h -help\tDisplay this message\n"
 294                                                         "\tfile\t\tLoads file\n"));
 295                          return 0;
 296                 } else {
 297                         strncpy(file, argv[i], MAXPATHLEN);
 298                         if (file[0] != '/') {
 299                                 getcwd(path, MAXPATHLEN);
 300                                 if (strlen(path) + strlen(file) + 1 < MAXPATHLEN) {
 301                                         strcat(path, "/");
 302                                         strcat(path, file);
 303                                         strcpy(file, path);
 304                                 } else
 305                                         file[0] = 0;
 306                         }
 307                 }
 308         }
 309
 310         if (cdfile)
 311                 set_cd_image(cdfile);
 312
 313         if (SysInit() == -1)
 314                 return 1;
 315
 316         // frontend stuff
 317         in_init();
 318         in_evdev_init();
 319         //in_probe();
 320         plat_init();
 321         menu_init(); // loads config
 322         pl_init();
 323         plat_rescan_inputs();
 324
 325         if (psxout)
 326                 Config.PsxOut = 1;
 327
 328         if (LoadPlugins() == -1) {
 329                 // FIXME: this recovery doesn't work, just delete bad config and bail out
 330                 // SysMessage("could not load plugins, retrying with defaults\n");
 331                 set_default_paths();
 332                 snprintf(path, sizeof(path), "." PCSX_DOT_DIR "%s", cfgfile_basename);
 333                 remove(path);
 334                 SysMessage("Failed loading plugins!");
 335                 return 1;
 336         }
 337         pcnt_hook_plugins();
 338
 339         if (OpenPlugins() == -1) {
 340                 return 1;
 341         }
 342         plugin_call_rearmed_cbs();
 343
 344         CheckCdrom();
 345         SysReset();
 346
 347         if (file[0] != '\0') {
 348                 if (Load(file) != -1)
 349                         ready_to_go = 1;
 350         } else {
 351                 if (cdfile) {
 352                         if (LoadCdrom() == -1) {
 353                                 ClosePlugins();
 354                                 printf(_("Could not load CD-ROM!\n"));
 355                                 return -1;
 356                         }
 357                         ready_to_go = 1;
 358                 }
 359         }
 360
 361         if (ready_to_go) {
 362                 menu_prepare_emu();
 363
 364                 // If a state has been specified, then load that
 365                 if (loadst) {
 366                         int ret = emu_load_state(loadst - 1);
 367                         printf("%s state %d\n", ret ? "failed to load" : "loaded", loadst);
 368                 }
 369                 if (loadst_f) {
 370                         int ret = LoadState(loadst_f);
 371                         printf("%s state file: %s\n", ret ? "failed to load" : "loaded", loadst_f);
 372                 }
 373         }
 374         else
 375                 menu_loop();
 376
 377         pl_start_watchdog();
 378
 379         while (1)
 380         {
 381                 stop = 0;
 382                 emu_action = SACTION_NONE;
 383
 384                 psxCpu->Execute();
 385                 if (emu_action != SACTION_NONE)
 386                         do_emu_action();
 387         }
 388
 389         return 0;
 390 #endif
 391 }
 392
 393 int SysInit() {
 394         if (EmuInit() == -1) {
 395                 printf("PSX emulator couldn't be initialized.\n");
 396                 return -1;
 397         }
 398
 399         LoadMcds(Config.Mcd1, Config.Mcd2);
 400
 401         if (Config.Debug) {
 402                 StartDebugger();
 403         }
 404
 405         return 0;
 406 }
 407
 408 void SysRunGui() {
 409         printf("SysRunGui\n");
 410 }
 411
 412 void StartGui() {
 413         printf("StartGui\n");
 414 }
 415
 416 static void dummy_lace()
 417 {
 418 }
 419
 420 void SysReset() {
 421         // rearmed hack: EmuReset() runs some code when real BIOS is used,
 422         // but we usually do reset from menu while GPU is not open yet,
 423         // so we need to prevent updateLace() call..
 424         void *real_lace = GPU_updateLace;
 425         GPU_updateLace = dummy_lace;
 426
 427         EmuReset();
 428
 429         // hmh core forgets this
 430         CDR_stop();
 431
 432         GPU_updateLace = real_lace;
 433 }
 434
 435 void SysClose() {
 436         EmuShutdown();
 437         ReleasePlugins();
 438
 439         StopDebugger();
 440
 441         if (emuLog != NULL) fclose(emuLog);
 442 }
 443
 444 void SysUpdate() {
 445 }
 446
 447 void OnFile_Exit() {
 448         printf("OnFile_Exit\n");
 449 #ifndef MAEMO
 450         menu_finish();
 451 #endif
 452         SysClose();
 453         plat_finish();
 454         exit(0);
 455 }
 456
 457 int get_state_filename(char *buf, int size, int i) {
 458         return get_gameid_filename(buf, size,
 459                 "." STATES_DIR "%.32s-%.9s.%3.3d", i);
 460 }
 461
 462 int emu_check_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 CheckState(fname);
 472 }
 473
 474 int emu_save_state(int slot)
 475 {
 476         char fname[MAXPATHLEN];
 477         int ret;
 478
 479         ret = get_state_filename(fname, sizeof(fname), slot);
 480         if (ret != 0)
 481                 return ret;
 482
 483         ret = SaveState(fname);
 484         printf("* %s \"%s\" [%d]\n", ret == 0 ? "saved" : "failed to save", fname, slot);
 485         return ret;
 486 }
 487
 488 int emu_load_state(int slot)
 489 {
 490         char fname[MAXPATHLEN];
 491         int ret;
 492
 493         ret = get_state_filename(fname, sizeof(fname), slot);
 494         if (ret != 0)
 495                 return ret;
 496
 497         return LoadState(fname);
 498 }
 499
 500 void SysPrintf(const char *fmt, ...) {
 501         va_list list;
 502         char msg[512];
 503
 504         va_start(list, fmt);
 505         vsprintf(msg, fmt, list);
 506         va_end(list);
 507
 508         fprintf(emuLog, "%s", msg);
 509 }
 510
 511 void SysMessage(const char *fmt, ...) {
 512         va_list list;
 513         char msg[512];
 514
 515         va_start(list, fmt);
 516         vsprintf(msg, fmt, list);
 517         va_end(list);
 518
 519         if (msg[strlen(msg) - 1] == '\n')
 520                 msg[strlen(msg) - 1] = 0;
 521
 522         fprintf(stderr, "%s\n", msg);
 523 }
 524
 525 static void SignalExit(int sig) {
 526         ClosePlugins();
 527         OnFile_Exit();
 528 }
 529
 530 #define PARSEPATH(dst, src) \
 531         ptr = src + strlen(src); \
 532         while (*ptr != '\\' && ptr != src) ptr--; \
 533         if (ptr != src) { \
 534                 strcpy(dst, ptr+1); \
 535         }
 536
 537 static int _OpenPlugins(void) {
 538         int ret;
 539
 540         signal(SIGINT, SignalExit);
 541         signal(SIGPIPE, SignalExit);
 542
 543         GPU_clearDynarec(clearDynarec);
 544
 545         ret = CDR_open();
 546         if (ret < 0) { SysMessage(_("Error opening CD-ROM plugin!")); return -1; }
 547         ret = SPU_open();
 548         if (ret < 0) { SysMessage(_("Error opening SPU plugin!")); return -1; }
 549         SPU_registerCallback(SPUirq);
 550         // pcsx-rearmed: we handle gpu elsewhere
 551         //ret = GPU_open(&gpuDisp, "PCSX", NULL);
 552         //if (ret < 0) { SysMessage(_("Error opening GPU plugin!")); return -1; }
 553         ret = PAD1_open(&gpuDisp);
 554         if (ret < 0) { SysMessage(_("Error opening Controller 1 plugin!")); return -1; }
 555         ret = PAD2_open(&gpuDisp);
 556         if (ret < 0) { SysMessage(_("Error opening Controller 2 plugin!")); return -1; }
 557
 558         if (Config.UseNet && !NetOpened) {
 559                 netInfo info;
 560                 char path[MAXPATHLEN];
 561                 char dotdir[MAXPATHLEN];
 562
 563                 MAKE_PATH(dotdir, "/.pcsx/plugins/", NULL);
 564
 565                 strcpy(info.EmuName, "PCSX " PACKAGE_VERSION);
 566                 strncpy(info.CdromID, CdromId, 9);
 567                 strncpy(info.CdromLabel, CdromLabel, 9);
 568                 info.psxMem = psxM;
 569                 info.GPU_showScreenPic = GPU_showScreenPic;
 570                 info.GPU_displayText = GPU_displayText;
 571                 info.GPU_showScreenPic = GPU_showScreenPic;
 572                 info.PAD_setSensitive = PAD1_setSensitive;
 573                 sprintf(path, "%s%s", Config.BiosDir, Config.Bios);
 574                 strcpy(info.BIOSpath, path);
 575                 strcpy(info.MCD1path, Config.Mcd1);
 576                 strcpy(info.MCD2path, Config.Mcd2);
 577                 sprintf(path, "%s%s", dotdir, Config.Gpu);
 578                 strcpy(info.GPUpath, path);
 579                 sprintf(path, "%s%s", dotdir, Config.Spu);
 580                 strcpy(info.SPUpath, path);
 581                 sprintf(path, "%s%s", dotdir, Config.Cdr);
 582                 strcpy(info.CDRpath, path);
 583                 NET_setInfo(&info);
 584
 585                 ret = NET_open(&gpuDisp);
 586                 if (ret < 0) {
 587                         if (ret == -2) {
 588                                 // -2 is returned when something in the info
 589                                 // changed and needs to be synced
 590                                 char *ptr;
 591
 592                                 PARSEPATH(Config.Bios, info.BIOSpath);
 593                                 PARSEPATH(Config.Gpu,  info.GPUpath);
 594                                 PARSEPATH(Config.Spu,  info.SPUpath);
 595                                 PARSEPATH(Config.Cdr,  info.CDRpath);
 596
 597                                 strcpy(Config.Mcd1, info.MCD1path);
 598                                 strcpy(Config.Mcd2, info.MCD2path);
 599                                 return -2;
 600                         } else {
 601                                 Config.UseNet = FALSE;
 602                         }
 603                 } else {
 604                         if (NET_queryPlayer() == 1) {
 605                                 if (SendPcsxInfo() == -1) Config.UseNet = FALSE;
 606                         } else {
 607                                 if (RecvPcsxInfo() == -1) Config.UseNet = FALSE;
 608                         }
 609                 }
 610                 NetOpened = TRUE;
 611         } else if (Config.UseNet) {
 612                 NET_resume();
 613         }
 614
 615         return 0;
 616 }
 617
 618 int OpenPlugins() {
 619         int ret;
 620
 621         while ((ret = _OpenPlugins()) == -2) {
 622                 ReleasePlugins();
 623                 LoadMcds(Config.Mcd1, Config.Mcd2);
 624                 if (LoadPlugins() == -1) return -1;
 625         }
 626         return ret;
 627 }
 628
 629 void ClosePlugins() {
 630         int ret;
 631
 632         signal(SIGINT, SIG_DFL);
 633         signal(SIGPIPE, SIG_DFL);
 634         ret = CDR_close();
 635         if (ret < 0) { SysMessage(_("Error closing CD-ROM plugin!")); return; }
 636         ret = SPU_close();
 637         if (ret < 0) { SysMessage(_("Error closing SPU plugin!")); return; }
 638         ret = PAD1_close();
 639         if (ret < 0) { SysMessage(_("Error closing Controller 1 Plugin!")); return; }
 640         ret = PAD2_close();
 641         if (ret < 0) { SysMessage(_("Error closing Controller 2 plugin!")); return; }
 642         // pcsx-rearmed: we handle gpu elsewhere
 643         //ret = GPU_close();
 644         //if (ret < 0) { SysMessage(_("Error closing GPU plugin!")); return; }
 645
 646         if (Config.UseNet) {
 647                 NET_pause();
 648         }
 649 }
 650
 651 /* we hook statically linked plugins here */
 652 static const char *builtin_plugins[] = {
 653         "builtin_gpu", "builtin_spu", "builtin_cdr", "builtin_pad",
 654         "builtin_cdrcimg",
 655 };
 656
 657 static const int builtin_plugin_ids[] = {
 658         PLUGIN_GPU, PLUGIN_SPU, PLUGIN_CDR, PLUGIN_PAD,
 659         PLUGIN_CDRCIMG,
 660 };
 661
 662 void *SysLoadLibrary(const char *lib) {
 663         const char *tmp = strrchr(lib, '/');
 664         void *ret;
 665         int i;
 666
 667         printf("plugin: %s\n", lib);
 668
 669         if (tmp != NULL) {
 670                 tmp++;
 671                 for (i = 0; i < ARRAY_SIZE(builtin_plugins); i++)
 672                         if (strcmp(tmp, builtin_plugins[i]) == 0)
 673                                 return (void *)(long)(PLUGIN_DL_BASE + builtin_plugin_ids[i]);
 674         }
 675
 676 #if defined(__x86_64__) || defined(__i386__)
 677         // convenience hack
 678         char name[MAXPATHLEN];
 679         snprintf(name, sizeof(name), "%s.x86", lib);
 680         lib = name;
 681 #endif
 682
 683         ret = dlopen(lib, RTLD_NOW);
 684         if (ret == NULL)
 685                 fprintf(stderr, "dlopen: %s\n", dlerror());
 686         return ret;
 687 }
 688
 689 void *SysLoadSym(void *lib, const char *sym) {
 690         unsigned int plugid = (unsigned int)(long)lib;
 691
 692         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 693                 return plugin_link(plugid - PLUGIN_DL_BASE, sym);
 694
 695         return dlsym(lib, sym);
 696 }
 697
 698 const char *SysLibError() {
 699         return dlerror();
 700 }
 701
 702 void SysCloseLibrary(void *lib) {
 703         unsigned int plugid = (unsigned int)(long)lib;
 704
 705         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 706                 return;
 707
 708         dlclose(lib);
 709 }
 710