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