frontend/main.c

   1 /*
   2  * (C) notaz, 2010
   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
  16 #include "plugin.h"
  17 #include "pcnt.h"
  18 #include "menu.h"
  19 #include "../gui/Linux.h"
  20 #include "../libpcsxcore/misc.h"
  21 #include "../plugins/cdrcimg/cdrcimg.h"
  22 #include "common/plat.h"
  23 #include "common/input.h"
  24
  25 int ready_to_go;
  26 int UseGui;
  27 static char *(*real_getenv)(const char *name);
  28
  29 static void make_path(char *buf, size_t size, const char *dir, const char *fname)
  30 {
  31         if (fname)
  32                 snprintf(buf, size, ".%s%s", dir, fname);
  33         else
  34                 snprintf(buf, size, ".%s", dir);
  35 }
  36 #define MAKE_PATH(buf, dir, fname) \
  37         make_path(buf, sizeof(buf), dir, fname)
  38
  39 static void create_profile_dir(const char *directory) {
  40         char path[MAXPATHLEN];
  41
  42         MAKE_PATH(path, directory, NULL);
  43         mkdir(path, S_IRWXU | S_IRWXG);
  44 }
  45
  46 static void CheckSubDir() {
  47         // make sure that ~/.pcsx exists
  48         create_profile_dir(PCSX_DOT_DIR);
  49
  50         create_profile_dir(BIOS_DIR);
  51         create_profile_dir(MEMCARD_DIR);
  52         create_profile_dir(STATES_DIR);
  53         create_profile_dir(PLUGINS_DIR);
  54         create_profile_dir(PLUGINS_CFG_DIR);
  55         create_profile_dir(CHEATS_DIR);
  56         create_profile_dir(PATCHES_DIR);
  57         create_profile_dir(PCSX_DOT_DIR "cfg");
  58 }
  59
  60 void set_cd_image(const char *fname)
  61 {
  62         const char *ext;
  63         int len;
  64
  65         len = strlen(fname);
  66         ext = fname;
  67         if (len > 2)
  68                 ext = fname + len - 2;
  69
  70         if (strcasecmp(ext, ".z") == 0) {
  71                 SetIsoFile(NULL);
  72                 cdrcimg_set_fname(fname);
  73                 strcpy(Config.Cdr, "builtin_cdrcimg");
  74         } else {
  75                 SetIsoFile(fname);
  76                 strcpy(Config.Cdr, "builtin_cdr");
  77         }
  78 }
  79
  80 int main(int argc, char *argv[])
  81 {
  82         char file[MAXPATHLEN] = "";
  83         char path[MAXPATHLEN];
  84         const char *cdfile = NULL;
  85         int loadst = 0;
  86         void *tmp;
  87         int i;
  88
  89         tmp = dlopen("/lib/libdl.so.2", RTLD_LAZY);
  90         if (tmp == NULL)
  91                 tmp = dlopen("/lib32/libdl.so.2", RTLD_LAZY);
  92         if (tmp != NULL)
  93                 real_getenv = dlsym(tmp, "getenv");
  94         if (real_getenv == NULL) {
  95                 fprintf(stderr, "%s\n", dlerror());
  96                 return 1;
  97         }
  98         dlclose(tmp);
  99
 100         // what is the name of the config file?
 101         // it may be redefined by -cfg on the command line
 102         strcpy(cfgfile_basename, "pcsx.cfg");
 103
 104         emuLog = stdout;
 105         SetIsoFile(NULL);
 106
 107         // read command line options
 108         for (i = 1; i < argc; i++) {
 109                      if (!strcmp(argv[i], "-psxout")) Config.PsxOut = 1;
 110                 else if (!strcmp(argv[i], "-load")) loadst = atol(argv[++i]);
 111                 else if (!strcmp(argv[i], "-cfg")) {
 112                         if (i+1 >= argc) break;
 113                         strncpy(cfgfile_basename, argv[++i], MAXPATHLEN-100);   /* TODO buffer overruns */
 114                         printf("Using config file %s.\n", cfgfile_basename);
 115                 }
 116                 else if (!strcmp(argv[i], "-cdfile")) {
 117                         char isofilename[MAXPATHLEN];
 118
 119                         if (i+1 >= argc) break;
 120                         strncpy(isofilename, argv[++i], MAXPATHLEN);
 121                         if (isofilename[0] != '/') {
 122                                 getcwd(path, MAXPATHLEN);
 123                                 if (strlen(path) + strlen(isofilename) + 1 < MAXPATHLEN) {
 124                                         strcat(path, "/");
 125                                         strcat(path, isofilename);
 126                                         strcpy(isofilename, path);
 127                                 } else
 128                                         isofilename[0] = 0;
 129                         }
 130
 131                         cdfile = isofilename;
 132                 }
 133                 else if (!strcmp(argv[i], "-h") ||
 134                          !strcmp(argv[i], "-help") ||
 135                          !strcmp(argv[i], "--help")) {
 136                          printf(PACKAGE_NAME " " PACKAGE_VERSION "\n");
 137                          printf("%s\n", _(
 138                                                         " pcsx [options] [file]\n"
 139                                                         "\toptions:\n"
 140                                                         "\t-cdfile FILE\tRuns a CD image file\n"
 141                                                         "\t-nogui\t\tDon't open the GTK GUI\n"
 142                                                         "\t-cfg FILE\tLoads desired configuration file (default: ~/.pcsx/pcsx.cfg)\n"
 143                                                         "\t-psxout\t\tEnable PSX output\n"
 144                                                         "\t-load STATENUM\tLoads savestate STATENUM (1-5)\n"
 145                                                         "\t-h -help\tDisplay this message\n"
 146                                                         "\tfile\t\tLoads file\n"));
 147                          return 0;
 148                 } else {
 149                         strncpy(file, argv[i], MAXPATHLEN);
 150                         if (file[0] != '/') {
 151                                 getcwd(path, MAXPATHLEN);
 152                                 if (strlen(path) + strlen(file) + 1 < MAXPATHLEN) {
 153                                         strcat(path, "/");
 154                                         strcat(path, file);
 155                                         strcpy(file, path);
 156                                 } else
 157                                         file[0] = 0;
 158                         }
 159                 }
 160         }
 161
 162         memset(&Config, 0, sizeof(PcsxConfig));
 163         strcpy(Config.Net, "Disabled");
 164
 165         CheckSubDir();
 166 //      ScanAllPlugins();
 167
 168         MAKE_PATH(Config.Mcd1, MEMCARD_DIR, "card1.mcd");
 169         MAKE_PATH(Config.Mcd2, MEMCARD_DIR, "card2.mcd");
 170         strcpy(Config.Bios, "HLE");
 171         strcpy(Config.BiosDir, "./");
 172
 173         strcpy(Config.PluginsDir, "plugins");
 174         strcpy(Config.Gpu, "builtin_gpu");
 175         strcpy(Config.Spu, "builtin_spu");
 176         strcpy(Config.Cdr, "builtin_cdr");
 177         strcpy(Config.Pad1, "builtin_pad");
 178         strcpy(Config.Pad2, "builtin_pad");
 179         Config.PsxAuto = 1;
 180
 181         snprintf(Config.PatchesDir, sizeof(Config.PatchesDir), "." PATCHES_DIR);
 182 /*
 183         // switch to plugin dotdir
 184         // this lets plugins work without modification!
 185         gchar *plugin_default_dir = g_build_filename(getenv("HOME"), PLUGINS_DIR, NULL);
 186         chdir(plugin_default_dir);
 187         g_free(plugin_default_dir);
 188 */
 189
 190         if (cdfile)
 191                 set_cd_image(cdfile);
 192
 193         if (SysInit() == -1)
 194                 return 1;
 195
 196         // frontend stuff
 197         in_init();
 198         in_probe();
 199         plat_init();
 200         menu_init();
 201
 202         if (LoadPlugins() == -1) {
 203                 SysMessage("Failed loading plugins!");
 204                 return 1;
 205         }
 206         pcnt_hook_plugins();
 207
 208         if (OpenPlugins() == -1) {
 209                 return 1;
 210         }
 211
 212         SysReset();
 213         CheckCdrom();
 214
 215         if (file[0] != '\0') {
 216                 if (Load(file) != -1)
 217                         ready_to_go = 1;
 218         } else {
 219                 if (cdfile) {
 220                         if (LoadCdrom() == -1) {
 221                                 ClosePlugins();
 222                                 printf(_("Could not load CD-ROM!\n"));
 223                                 return -1;
 224                         }
 225                         ready_to_go = 1;
 226                 }
 227         }
 228
 229         // If a state has been specified, then load that
 230         if (loadst) {
 231                 StatesC = loadst - 1;
 232                 char *state_filename = get_state_filename(StatesC);
 233                 int ret = LoadState(state_filename);
 234                 printf("%s state %s\n", ret ? "failed to load" : "loaded", state_filename);
 235                 free(state_filename);
 236         }
 237
 238         if (ready_to_go)
 239                 menu_prepare_emu();
 240         else
 241                 menu_loop();
 242
 243         while (1)
 244         {
 245                 psxCpu->Execute();
 246                 menu_loop();
 247         }
 248
 249         return 0;
 250 }
 251
 252 int SysInit() {
 253         if (EmuInit() == -1) {
 254                 printf("PSX emulator couldn't be initialized.\n");
 255                 return -1;
 256         }
 257
 258         LoadMcds(Config.Mcd1, Config.Mcd2);     /* TODO Do we need to have this here, or in the calling main() function?? */
 259
 260         if (Config.Debug) {
 261                 StartDebugger();
 262         }
 263
 264         return 0;
 265 }
 266
 267 void SysRunGui() {
 268         printf("SysRunGui\n");
 269 }
 270
 271 void StartGui() {
 272         printf("StartGui\n");
 273 }
 274
 275 void SysReset() {
 276         EmuReset();
 277
 278         // hmh core forgets this
 279         CDR_stop();
 280 }
 281
 282 void SysClose() {
 283         EmuShutdown();
 284         ReleasePlugins();
 285
 286         StopDebugger();
 287
 288         if (emuLog != NULL) fclose(emuLog);
 289 }
 290
 291 void SysUpdate() {
 292         PADhandleKey(PAD1_keypressed());
 293         PADhandleKey(PAD2_keypressed());
 294 }
 295
 296 void UpdateMenuSlots() {
 297 }
 298
 299 void OnFile_Exit() {
 300         printf("OnFile_Exit\n");
 301         plat_finish();
 302         SysClose();
 303         exit(0);
 304 }
 305
 306 void state_save(gchar *state_filename) {
 307         char Text[MAXPATHLEN + 20];
 308
 309         GPU_updateLace();
 310
 311         if (SaveState(state_filename) == 0)
 312                 sprintf(Text, _("Saved state %s."), state_filename);
 313         else
 314                 sprintf(Text, _("Error saving state %s!"), state_filename);
 315
 316         GPU_displayText(Text);
 317 }
 318
 319 void state_load(gchar *state_filename) {
 320         int ret;
 321         char Text[MAXPATHLEN + 20];
 322         FILE *fp;
 323
 324         // check if the state file actually exists
 325         fp = fopen(state_filename, "rb");
 326         if (fp == NULL) {
 327                 // file does not exist
 328                 return;
 329         }
 330
 331         fclose(fp);
 332
 333         ret = CheckState(state_filename);
 334
 335         if (ret == 0) {
 336                 SysReset();
 337                 ret = LoadState(state_filename);
 338         }
 339
 340         if (ret == 0) {
 341                 // Check the CD-ROM is valid
 342                 if (CheckCdrom() == -1) {
 343                         ClosePlugins();
 344                         SysRunGui();
 345                         return;
 346                 }
 347
 348                 sprintf(Text, _("Loaded state %s."), state_filename);
 349         } else {
 350                 sprintf(Text, _("Error loading state %s!"), state_filename);
 351         }
 352         GPU_displayText(Text);
 353 }
 354
 355 char *get_state_filename(int i) {
 356         char SStateFile[256];
 357         char trimlabel[33];
 358         int j;
 359
 360         strncpy(trimlabel, CdromLabel, 32);
 361         trimlabel[32] = 0;
 362         for (j = 31; j >= 0; j--)
 363                 if (trimlabel[j] == ' ')
 364                         trimlabel[j] = 0;
 365                 else
 366                         continue;
 367
 368         snprintf(SStateFile, sizeof(SStateFile), "." STATES_DIR "%.32s-%.9s.%3.3d",
 369                 trimlabel, CdromId, i);
 370
 371         return strdup(SStateFile);
 372 }
 373
 374 void SysPrintf(const char *fmt, ...) {
 375         va_list list;
 376         char msg[512];
 377
 378         va_start(list, fmt);
 379         vsprintf(msg, fmt, list);
 380         va_end(list);
 381
 382         fprintf(emuLog, "%s", msg);
 383 }
 384
 385 void SysMessage(const char *fmt, ...) {
 386         va_list list;
 387         char msg[512];
 388
 389         va_start(list, fmt);
 390         vsprintf(msg, fmt, list);
 391         va_end(list);
 392
 393         if (msg[strlen(msg) - 1] == '\n')
 394                 msg[strlen(msg) - 1] = 0;
 395
 396         fprintf(stderr, "%s\n", msg);
 397 }
 398
 399 #if 1
 400 /* this is to avoid having to hack every plugin to stop using $HOME */
 401 char *getenv(const char *name)
 402 {
 403         static char ret[8] = ".";
 404
 405         if (name && strcmp(name, "HOME") == 0 &&
 406                         ((int)name >> 28) == 0) // HACK: let libs find home
 407                 return ret;
 408
 409         return real_getenv(name);
 410 }
 411 #endif
 412
 413 /* we hook statically linked plugins here */
 414 static const char *builtin_plugins[] = {
 415         "builtin_gpu", "builtin_spu", "builtin_cdr", "builtin_pad",
 416         "builtin_cdrcimg",
 417 };
 418
 419 static const int builtin_plugin_ids[] = {
 420         PLUGIN_GPU, PLUGIN_SPU, PLUGIN_CDR, PLUGIN_PAD,
 421         PLUGIN_CDRCIMG,
 422 };
 423
 424 void *SysLoadLibrary(const char *lib) {
 425         const char *tmp = strrchr(lib, '/');
 426         int i;
 427
 428         printf("dlopen %s\n", lib);
 429         if (tmp != NULL) {
 430                 tmp++;
 431                 for (i = 0; i < ARRAY_SIZE(builtin_plugins); i++)
 432                         if (strcmp(tmp, builtin_plugins[i]) == 0)
 433                                 return (void *)(long)(PLUGIN_DL_BASE + builtin_plugin_ids[i]);
 434         }
 435
 436 #if defined(__x86_64__) || defined(__i386__)
 437         // convenience hack
 438         char name[MAXPATHLEN];
 439         snprintf(name, sizeof(name), "%s.x86", lib);
 440         lib = name;
 441 #endif
 442
 443         return dlopen(lib, RTLD_NOW);
 444 }
 445
 446 void *SysLoadSym(void *lib, const char *sym) {
 447         unsigned int plugid = (unsigned int)(long)lib;
 448
 449         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 450                 return plugin_link(plugid - PLUGIN_DL_BASE, sym);
 451
 452         return dlsym(lib, sym);
 453 }
 454
 455 const char *SysLibError() {
 456         return dlerror();
 457 }
 458
 459 void SysCloseLibrary(void *lib) {
 460         unsigned int plugid = (unsigned int)(long)lib;
 461
 462         if (PLUGIN_DL_BASE <= plugid && plugid < PLUGIN_DL_BASE + ARRAY_SIZE(builtin_plugins))
 463                 return;
 464
 465         dlclose(lib);
 466 }
 467
 468