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