git.maemo.org Git - drnoksnes/blob - platform/config.cpp

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <popt.h>
   5
   6 #include "platform.h"
   7 #include "port.h"
   8 #include "snes9x.h"
   9
  10 #if CONF_GUI
  11 #include "osso.h"
  12 #endif
  13
  14 #define DIE(format, ...) do { \
  15                 fprintf(stderr, "Died at %s:%d: ", __FILE__, __LINE__ ); \
  16                 fprintf(stderr, format "\n", ## __VA_ARGS__); \
  17                 abort(); \
  18         } while (0);
  19
  20 struct config Config;
  21
  22 /** Path to current rom file, with extension. */
  23 static char * romFile;
  24 /** Path to rom file, without extension.
  25  *  Used as a simple optimization to S9xGetFilename
  26  */
  27 static char * basePath;
  28
  29 static struct poptOption commonOptionsTable[] = {
  30         { "disable-audio", 'a', POPT_ARG_NONE, 0, 1,
  31         "disable emulation and output of audio", 0 },
  32         { "display-framerate", 'r', POPT_ARG_NONE, 0, 2,
  33         "show frames per second counter in lower left corner", 0 },
  34         { "skip-frames", 's', POPT_ARG_INT, 0, 3,
  35         "render only 1 in every N frames", "NUM" },
  36         { "fullscreen", 'f', POPT_ARG_NONE, 0, 4,
  37         "start in fullscreen mode", 0 },
  38         { "transparency", 'y', POPT_ARG_NONE, 0, 5,
  39         "enable transparency effects (slower)", 0 },
  40         { "scaler", 'S', POPT_ARG_STRING, 0, 6,
  41         "select scaler to use", 0 },
  42         { "pal", 'p', POPT_ARG_NONE, 0, 7,
  43         "run in PAL mode", 0 },
  44         { "ntsc", 'n', POPT_ARG_NONE, 0, 8,
  45         "run in NTSC mode", 0 },
  46         { "turbo", 't', POPT_ARG_NONE, 0, 9,
  47         "turbo mode (do not try to sleep between frames)", 0 },
  48         { "conf", 'c', POPT_ARG_STRING, 0, 10,
  49         "extra configuration file to load", "FILE" },
  50         { "mouse", 'm', POPT_ARG_INT | POPT_ARGFLAG_OPTIONAL, 0, 11,
  51         "enable mouse on controller NUM", "NUM"},
  52         { "superscope", 'e', POPT_ARG_NONE, 0, 12,
  53         "enable SuperScope", 0},
  54         { "snapshot", 'o', POPT_ARG_NONE, 0, 13,
  55         "unfreeze previous game on start and freeze game on exit", 0 },
  56         { "audio-rate", 'u', POPT_ARG_INT, 0, 14,
  57         "audio output rate", "HZ" },
  58         { "audio-buffer-size", 'b', POPT_ARG_INT, 0, 15,
  59         "audio output buffer size", "SAMPLES" },
  60         { "touchscreen", 'd', POPT_ARG_NONE, 0, 16,
  61         "enable touchscreen controls", 0 },
  62         { "touchscreen-grid", 'D', POPT_ARG_NONE, 0, 17,
  63         "enable touchscreen controls and show grid", 0 },
  64         { "hacks", 'h', POPT_ARG_NONE, 0, 18,
  65         "enable safe subset of speedhacks", 0 },
  66         { "all-hacks", 'H', POPT_ARG_NONE, 0, 19,
  67         "enable all speedhacks (may break sound)", 0 },
  68         { "saver", 'R', POPT_ARG_NONE, 0, 20,
  69         "save&exit when the emulator window is unfocused", 0 },
  70         POPT_TABLEEND
  71 };
  72
  73 static struct poptOption configOptionsTable[] = {
  74         { "scancode", '\0', POPT_ARG_INT, 0, 100,
  75         "scancode to map", "CODE" },
  76         { "button", '\0', POPT_ARG_STRING, 0, 101,
  77         "SNES Button to press (A, B, X, Y, L, R, Up, Down, Left, Right)", "name" },
  78         { "button2", '\0', POPT_ARG_STRING, 0, 102,
  79         "SNES Button to press for joypad 2", "name" },
  80         { "action", '\0', POPT_ARG_STRING, 0, 110,
  81         "emulator action to do (fullscreen, quit, ...)", "action" },
  82         { "hacks-file", '\0', POPT_ARG_STRING, 0, 200,
  83         "path to snesadvance.dat file", "FILE" },
  84         POPT_TABLEEND
  85 };
  86
  87 static struct poptOption optionsTable[] = {
  88         { 0, '\0', POPT_ARG_INCLUDE_TABLE, commonOptionsTable, 0,
  89         "Common options", 0 },
  90         { 0, '\0', POPT_ARG_INCLUDE_TABLE, configOptionsTable, 0,
  91         "Configuration file options", 0 },
  92         POPT_AUTOHELP
  93         POPT_TABLEEND
  94 };
  95
  96 static unsigned short buttonNameToBit(const char *s) {
  97         if (strcasecmp(s, "A") == 0) {
  98                 return SNES_A_MASK;
  99         } else if (strcasecmp(s, "B") == 0) {
 100                 return SNES_B_MASK;
 101         } else if (strcasecmp(s, "X") == 0) {
 102                 return SNES_X_MASK;
 103         } else if (strcasecmp(s, "Y") == 0) {
 104                 return SNES_Y_MASK;
 105         } else if (strcasecmp(s, "L") == 0) {
 106                 return SNES_TL_MASK;
 107         } else if (strcasecmp(s, "R") == 0) {
 108                 return SNES_TR_MASK;
 109         } else if (strcasecmp(s, "UP") == 0) {
 110                 return SNES_UP_MASK;
 111         } else if (strcasecmp(s, "DOWN") == 0) {
 112                 return SNES_DOWN_MASK;
 113         } else if (strcasecmp(s, "LEFT") == 0) {
 114                 return SNES_LEFT_MASK;
 115         } else if (strcasecmp(s, "RIGHT") == 0) {
 116                 return SNES_RIGHT_MASK;
 117         } else if (strcasecmp(s, "START") == 0) {
 118                 return SNES_START_MASK;
 119         } else if (strcasecmp(s, "SELECT") == 0) {
 120                 return SNES_SELECT_MASK;
 121         } else {
 122                 DIE("Bad button name: %s\n", s);
 123         }
 124 }
 125
 126 static unsigned char actionNameToBit(const char *s) {
 127         if (strcasecmp(s, "quit") == 0) {
 128                 return kActionQuit;
 129         } else if (strcasecmp(s, "fullscreen") == 0) {
 130                 return kActionToggleFullscreen;
 131         } else if (strcasecmp(s, "quickload1") == 0) {
 132                 return kActionQuickLoad1;
 133         } else if (strcasecmp(s, "quicksave1") == 0) {
 134                 return kActionQuickSave1;
 135         } else if (strcasecmp(s, "quickload2") == 0) {
 136                 return kActionQuickLoad2;
 137         } else if (strcasecmp(s, "quicksave2") == 0) {
 138                 return kActionQuickSave2;
 139         } else {
 140                 DIE("Bad action name: %s\n", s);
 141         }
 142 }
 143
 144 const char * S9xGetFilename(FileTypes file)
 145 {
 146         static char filename[PATH_MAX + 1];
 147         const char * ext;
 148         switch (file) {
 149                 case FILE_ROM:
 150                         return romFile;
 151                 case FILE_SRAM:
 152                         ext = "srm";
 153                         break;
 154                 case FILE_FREEZE:
 155                         ext = "frz.gz";
 156                         break;
 157                 case FILE_CHT:
 158                         ext = "cht";
 159                         break;
 160                 case FILE_IPS:
 161                         ext = "ips";
 162                         break;
 163                 case FILE_SCREENSHOT:
 164                         ext = "png";
 165                         break;
 166                 case FILE_SDD1_DAT:
 167                         ext = "dat";
 168                         break;
 169                 default:
 170                         ext = "???";
 171                         break;
 172         }
 173
 174         snprintf(filename, PATH_MAX, "%s.%s", basePath, ext);
 175         return filename;
 176 }
 177
 178 const char * S9xGetQuickSaveFilename(unsigned int slot)
 179 {
 180         static char filename[PATH_MAX + 1];
 181         snprintf(filename, PATH_MAX, "%s.frz.%u.gz", basePath, slot);
 182         return filename;
 183 }
 184
 185 static void loadDefaults()
 186 {
 187         ZeroMemory(&Settings, sizeof(Settings));
 188         ZeroMemory(&Config, sizeof(Config));
 189
 190         romFile = 0;
 191         basePath = 0;
 192
 193         Config.enableAudio = true;
 194
 195         Settings.SoundPlaybackRate = 22050;
 196         Settings.Stereo = TRUE;
 197         Settings.SoundBufferSize = 512; // in samples
 198         Settings.CyclesPercentage = 100;
 199         Settings.APUEnabled = FALSE;            // We'll enable it later
 200         Settings.H_Max = SNES_CYCLES_PER_SCANLINE;
 201         Settings.SkipFrames = AUTO_FRAMERATE;
 202         Settings.Shutdown = Settings.ShutdownMaster = TRUE;
 203         Settings.FrameTimePAL = 20;     // in msecs
 204         Settings.FrameTimeNTSC = 16;
 205         Settings.FrameTime = Settings.FrameTimeNTSC;
 206         Settings.ControllerOption = SNES_JOYPAD;
 207
 208         Settings.ForceTransparency = FALSE;     // We'll enable those later
 209         Settings.Transparency = FALSE;
 210
 211         Settings.SupportHiRes = FALSE;
 212         Settings.ApplyCheats = FALSE;
 213         Settings.TurboMode = FALSE;
 214         Settings.TurboSkipFrames = 15;
 215
 216     Settings.ForcePAL = FALSE;
 217     Settings.ForceNTSC = FALSE;
 218
 219     Settings.HacksEnabled = FALSE;
 220     Settings.HacksFilter = FALSE;
 221
 222         Settings.HBlankStart = (256 * Settings.H_Max) / SNES_HCOUNTER_MAX;
 223
 224         Settings.AutoSaveDelay = 15*60; // Autosave each 15 minutes.
 225 }
 226
 227 void S9xSetRomFile(const char * path)
 228 {
 229         if (romFile) {
 230                 free(romFile);
 231                 free(basePath);
 232         }
 233
 234         romFile = strndup(path, PATH_MAX);
 235         basePath = strdup(romFile);
 236
 237         // Truncate base path at the last '.' char
 238         char * c = strrchr(basePath, '.');
 239         if (c) {
 240                 if (strcasecmp(c, ".gz") == 0) {
 241                         // Ignore the .gz part when truncating
 242                         *c = '\0';
 243                         c = strrchr(basePath, '.');
 244                         if (c) {
 245                                 *c = '\0';
 246                         }
 247                 } else {
 248                         *c = '\0';
 249                 }
 250         }
 251 }
 252
 253 static bool gotRomFile()
 254 {
 255         return romFile ? true : false;
 256 }
 257
 258 static void loadConfig(poptContext optCon, const char * file)
 259 {
 260         char * out;
 261         int newargc, ret;
 262         const char ** newargv;
 263         FILE * fp;
 264
 265         fp = fopen (file, "r");
 266         if (!fp) {
 267                 fprintf(stderr, "Cannot open config file %s\n", file);
 268                 return;
 269         }
 270
 271         ret = poptConfigFileToString (fp, &out, 0);
 272         if (ret)
 273             DIE("Cannot parse config file %s. ret=%d\n", file, ret);
 274
 275         poptParseArgvString(out, &newargc, &newargv);
 276
 277         poptStuffArgs(optCon, newargv);
 278
 279         free(out);
 280         fclose(fp);
 281         /* XXX: currently leaking newargv */
 282 }
 283
 284 static void parseArgs(poptContext optCon)
 285 {
 286         int rc;
 287         unsigned char scancode = 0;
 288
 289         while ((rc = poptGetNextOpt(optCon)) > 0) {
 290                 const char * val;
 291                 switch (rc) {
 292                         case 1:
 293                                 Config.enableAudio = false;
 294                                 break;
 295                         case 2:
 296                                 Settings.DisplayFrameRate = TRUE;
 297                                 break;
 298                         case 3:
 299                                 Settings.SkipFrames = atoi(poptGetOptArg(optCon));
 300                                 break;
 301                         case 4:
 302                                 Config.fullscreen = true;
 303                                 break;
 304                         case 5:
 305                                 Settings.Transparency = TRUE;
 306                                 break;
 307                         case 6:
 308                                 free(Config.scaler);
 309                                 Config.scaler = strdup(poptGetOptArg(optCon));
 310                                 break;
 311                         case 7:
 312                                 Settings.ForcePAL = TRUE;
 313                                 break;
 314                         case 8:
 315                                 Settings.ForceNTSC = TRUE;
 316                                 break;
 317                         case 9:
 318                                 Settings.TurboMode = TRUE;
 319                                 break;
 320                         case 10:
 321                                 loadConfig(optCon, poptGetOptArg(optCon));
 322                                 break;
 323                         case 11:
 324                                 val = poptGetOptArg(optCon);
 325                                 Settings.Mouse = TRUE;
 326                                 if (!val || atoi(val) <= 1) {
 327                                         // Enable mouse on first controller
 328                                         Settings.ControllerOption = SNES_MOUSE_SWAPPED;
 329                                 } else {
 330                                         // Enable mouse on second controller
 331                                         Settings.ControllerOption = SNES_MOUSE;
 332                                 }
 333                                 break;
 334                         case 12:
 335                                 Settings.SuperScope = TRUE;
 336                                 Settings.ControllerOption = SNES_SUPERSCOPE;
 337                                 break;
 338                         case 13:
 339                                 Config.snapshotLoad = true;
 340                                 Config.snapshotSave = true;
 341                                 break;
 342                         case 14:
 343                                 Settings.SoundPlaybackRate = atoi(poptGetOptArg(optCon));
 344                                 break;
 345                         case 15:
 346                                 Settings.SoundBufferSize = atoi(poptGetOptArg(optCon));
 347                                 break;
 348                         case 16:
 349                                 Config.touchscreenInput = 1;
 350                                 break;
 351                         case 17:
 352                                 Config.touchscreenInput = 1;
 353                                 Config.touchscreenShow = true;
 354                                 break;
 355                         case 18:
 356                                 Settings.HacksEnabled = TRUE;
 357                                 Settings.HacksFilter = TRUE;
 358                                 break;
 359                         case 19:
 360                                 Settings.HacksEnabled = TRUE;
 361                                 Settings.HacksFilter = FALSE;
 362                                 break;
 363                         case 20:
 364                                 Config.saver = true;
 365                                 break;
 366                         case 100:
 367                                 scancode = atoi(poptGetOptArg(optCon));
 368                                 break;
 369                         case 101:
 370                                 Config.joypad1Mapping[scancode] |=
 371                                         buttonNameToBit(poptGetOptArg(optCon));
 372                                 Config.joypad1Enabled = true;
 373                                 break;
 374                         case 102:
 375                                 Config.joypad2Mapping[scancode] |=
 376                                         buttonNameToBit(poptGetOptArg(optCon));
 377                                 Config.joypad2Enabled = true;
 378                                 break;
 379                         case 110:
 380                                 Config.action[scancode] |=
 381                                         actionNameToBit(poptGetOptArg(optCon));
 382                                 break;
 383                         case 200:
 384                                 free(Config.hacksFile);
 385                                 Config.hacksFile = strdup(poptGetOptArg(optCon));
 386                                 break;
 387                         default:
 388                                 DIE("Invalid popt argument (this is a bug): %d", rc);
 389                                 break;
 390                 }
 391         }
 392
 393         if (rc < -1) {
 394                 /* an error occurred during option processing */
 395                 fprintf(stderr, "%s: %s\n",
 396                         poptBadOption(optCon, 0),
 397                         poptStrerror(rc));
 398                 exit(2);
 399         }
 400
 401         /* if there's an extra unparsed arg it's our rom file */
 402         const char * extra_arg = poptGetArg(optCon);
 403         if (extra_arg)
 404                 S9xSetRomFile(extra_arg);
 405 }
 406
 407 void S9xLoadConfig(int argc, char ** argv)
 408 {
 409         poptContext optCon = poptGetContext("drnoksnes",
 410                 argc, const_cast<const char **>(argv), optionsTable, 0);
 411         poptSetOtherOptionHelp(optCon, "<rom>");
 412
 413         // Builtin defaults
 414         loadDefaults();
 415
 416         // Read config file ~/.config/drnoksnes.conf
 417         char defConfFile[PATH_MAX];
 418         sprintf(defConfFile, "%s/%s", getenv("HOME"), ".config/drnoksnes.conf");
 419         loadConfig(optCon, defConfFile);
 420
 421         // Command line parameters (including --conf args)
 422         parseArgs(optCon);
 423
 424 #if CONF_GUI
 425         if (!OssoOk())
 426 #endif
 427         {
 428                 if (!gotRomFile()) {
 429                         // User did not specify a ROM file in the command line
 430                         fprintf(stderr, "You need to specify a ROM, like this:\n");
 431                         poptPrintUsage(optCon, stdout, 0);
 432                         poptFreeContext(optCon);
 433                         exit(2);
 434                 }
 435         }
 436
 437         poptFreeContext(optCon);
 438 }
 439
 440 void S9xUnloadConfig()
 441 {
 442         if (romFile) {
 443                 free(romFile);
 444                 romFile = 0;
 445         }
 446         if (basePath) {
 447                 free(basePath);
 448                 basePath = 0;
 449         }
 450         if (Config.hacksFile) {
 451                 free(Config.hacksFile);
 452                 Config.hacksFile = 0;
 453         }
 454 }
 455