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 #include "display.h"
  10 #include "hgw.h"
  11
  12 #define DIE(format, ...) do { \
  13                 fprintf(stderr, "Died at %s:%d: ", __FILE__, __LINE__ ); \
  14                 fprintf(stderr, format "\n", ## __VA_ARGS__); \
  15                 abort(); \
  16         } while (0);
  17
  18 struct config Config;
  19
  20 /** Path to current rom file, with extension. */
  21 static char * romFile;
  22 /** Path to rom file, without extension.
  23  *  Used as a simple optimization to S9xGetFilename
  24  */
  25 static char * basePath;
  26
  27 static struct poptOption commonOptionsTable[] = {
  28         { "disable-audio", 'a', POPT_ARG_NONE, 0, 1,
  29         "disable emulation and output of audio", 0 },
  30         { "display-framerate", 'r', POPT_ARG_NONE, 0, 2,
  31         "show frames per second counter in lower left corner", 0 },
  32         { "skip-frames", 's', POPT_ARG_INT, 0, 3,
  33         "render only 1 in every N frames", "NUM" },
  34         { "fullscreen", 'f', POPT_ARG_NONE, 0, 4,
  35         "start in fullscreen mode", 0 },
  36         { "transparency", 'y', POPT_ARG_NONE, 0, 5,
  37         "enable transparency effects (slower)", 0 },
  38         { "scaler", 'S', POPT_ARG_STRING, 0, 6,
  39         "select scaler to use", 0 },
  40         { "pal", 'p', POPT_ARG_NONE, 0, 7,
  41         "run in PAL mode", 0 },
  42         { "ntsc", 'n', POPT_ARG_NONE, 0, 8,
  43         "run in NTSC mode", 0 },
  44         { "turbo", 't', POPT_ARG_NONE, 0, 9,
  45         "turbo mode (do not try to sleep between frames)", 0 },
  46         { "conf", 'c', POPT_ARG_STRING, 0, 10,
  47         "extra configuration file to load", "FILE" },
  48         { "mouse", 'm', POPT_ARG_INT | POPT_ARGFLAG_OPTIONAL, 0, 11,
  49         "enable mouse on controller NUM", "NUM"},
  50         { "superscope", 'e', POPT_ARG_NONE, 0, 12,
  51         "enable SuperScope", 0},
  52         { "snapshot", 'o', POPT_ARG_NONE, 0, 13,
  53         "unfreeze previous game on start and freeze game on exit", 0 },
  54         { "audio-rate", 'u', POPT_ARG_INT, 0, 14,
  55         "audio output rate", "HZ" },
  56         { "audio-buffer-size", 'b', POPT_ARG_INT, 0, 15,
  57         "audio output buffer size", "SAMPLES" },
  58         { "touchscreen", 'd', POPT_ARG_NONE, 0, 16,
  59         "enable touchscreen controls", 0 },
  60         { "touchscreen-grid", 'D', POPT_ARG_NONE, 0, 17,
  61         "enable touchscreen controls and show grid", 0 },
  62         { "hacks", 'h', POPT_ARG_NONE, 0, 18,
  63         "enable safe subset of speedhacks", 0 },
  64         { "all-hacks", 'H', POPT_ARG_NONE, 0, 19,
  65         "enable all speedhacks (may break sound)", 0 },
  66         POPT_TABLEEND
  67 };
  68
  69 static struct poptOption configOptionsTable[] = {
  70         { "scancode", '\0', POPT_ARG_INT, 0, 100,
  71         "scancode to map", "CODE" },
  72         { "button", '\0', POPT_ARG_STRING, 0, 101,
  73         "SNES Button to press (A, B, X, Y, L, R, Up, Down, Left, Right)", "name" },
  74         { "action", '\0', POPT_ARG_STRING, 0, 102,
  75         "emulator action to do (fullscreen, quit, ...)", "action" },
  76         { "hacks-file", '\0', POPT_ARG_STRING, 0, 200,
  77         "path to snesadvance.dat file", "FILE" },
  78         POPT_TABLEEND
  79 };
  80
  81 static struct poptOption optionsTable[] = {
  82         { 0, '\0', POPT_ARG_INCLUDE_TABLE, commonOptionsTable, 0,
  83         "Common options", 0 },
  84         { 0, '\0', POPT_ARG_INCLUDE_TABLE, configOptionsTable, 0,
  85         "Configuration file options", 0 },
  86         POPT_AUTOHELP
  87         POPT_TABLEEND
  88 };
  89
  90 static unsigned short buttonNameToBit(const char *s) {
  91         if (strcasecmp(s, "A") == 0) {
  92                 return SNES_A_MASK;
  93         } else if (strcasecmp(s, "B") == 0) {
  94                 return SNES_B_MASK;
  95         } else if (strcasecmp(s, "X") == 0) {
  96                 return SNES_X_MASK;
  97         } else if (strcasecmp(s, "Y") == 0) {
  98                 return SNES_Y_MASK;
  99         } else if (strcasecmp(s, "L") == 0) {
 100                 return SNES_TL_MASK;
 101         } else if (strcasecmp(s, "R") == 0) {
 102                 return SNES_TR_MASK;
 103         } else if (strcasecmp(s, "UP") == 0) {
 104                 return SNES_UP_MASK;
 105         } else if (strcasecmp(s, "DOWN") == 0) {
 106                 return SNES_DOWN_MASK;
 107         } else if (strcasecmp(s, "LEFT") == 0) {
 108                 return SNES_LEFT_MASK;
 109         } else if (strcasecmp(s, "RIGHT") == 0) {
 110                 return SNES_RIGHT_MASK;
 111         } else if (strcasecmp(s, "START") == 0) {
 112                 return SNES_START_MASK;
 113         } else if (strcasecmp(s, "SELECT") == 0) {
 114                 return SNES_SELECT_MASK;
 115         } else {
 116                 DIE("Bad button name: %s\n", s);
 117         }
 118 }
 119
 120 static unsigned char actionNameToBit(const char *s) {
 121         if (strcasecmp(s, "quit") == 0) {
 122                 return kActionQuit;
 123         } else if (strcasecmp(s, "fullscreen") == 0) {
 124                 return kActionToggleFullscreen;
 125         } else if (strcasecmp(s, "quickload1") == 0) {
 126                 return kActionQuickLoad1;
 127         } else if (strcasecmp(s, "quicksave1") == 0) {
 128                 return kActionQuickSave1;
 129         } else if (strcasecmp(s, "quickload2") == 0) {
 130                 return kActionQuickLoad2;
 131         } else if (strcasecmp(s, "quicksave2") == 0) {
 132                 return kActionQuickSave2;
 133         } else {
 134                 DIE("Bad action name: %s\n", s);
 135         }
 136 }
 137
 138 const char * S9xGetFilename(FileTypes file)
 139 {
 140         static char filename[PATH_MAX + 1];
 141         const char * ext;
 142         switch (file) {
 143                 case FILE_ROM:
 144                         return romFile;
 145                 case FILE_SRAM:
 146                         ext = "srm";
 147                         break;
 148                 case FILE_FREEZE:
 149                         ext = "frz.gz";
 150                         break;
 151                 case FILE_CHT:
 152                         ext = "cht";
 153                         break;
 154                 case FILE_IPS:
 155                         ext = "ips";
 156                         break;
 157                 case FILE_SCREENSHOT:
 158                         ext = "png";
 159                         break;
 160                 case FILE_SDD1_DAT:
 161                         ext = "dat";
 162                         break;
 163                 default:
 164                         ext = "???";
 165                         break;
 166         }
 167
 168         snprintf(filename, PATH_MAX, "%s.%s", basePath, ext);
 169         return filename;
 170 }
 171
 172 const char * S9xGetQuickSaveFilename(unsigned int slot)
 173 {
 174         static char filename[PATH_MAX + 1];
 175         snprintf(filename, PATH_MAX, "%s.frz.%u.gz", basePath, slot);
 176         return filename;
 177 }
 178
 179 static void loadDefaults()
 180 {
 181         ZeroMemory(&Settings, sizeof(Settings));
 182         ZeroMemory(&Config, sizeof(Config));
 183
 184         romFile = 0;
 185         basePath = 0;
 186
 187         Config.quitting = false;
 188         Config.enableAudio = true;
 189         Config.fullscreen = false;
 190         Config.scaler = 0;
 191         Config.hacksFile = 0;
 192         Config.touchscreenInput = false;
 193
 194         Settings.JoystickEnabled = FALSE;
 195         Settings.SoundPlaybackRate = 22050;
 196         Settings.Stereo = TRUE;
 197         Settings.SoundBufferSize = 512; // in samples
 198         Settings.CyclesPercentage = 100;
 199         Settings.DisableSoundEcho = FALSE;
 200         Settings.APUEnabled = FALSE;
 201         Settings.H_Max = SNES_CYCLES_PER_SCANLINE;
 202         Settings.SkipFrames = AUTO_FRAMERATE;
 203         Settings.Shutdown = Settings.ShutdownMaster = TRUE;
 204         Settings.FrameTimePAL = 20;     // in msecs
 205         Settings.FrameTimeNTSC = 16;
 206         Settings.FrameTime = Settings.FrameTimeNTSC;
 207         Settings.DisableSampleCaching = FALSE;
 208         Settings.DisableMasterVolume = FALSE;
 209         Settings.Mouse = FALSE;
 210         Settings.SuperScope = FALSE;
 211         Settings.MultiPlayer5 = FALSE;
 212         Settings.ControllerOption = SNES_JOYPAD;
 213
 214         Settings.ForceTransparency = FALSE;
 215         Settings.Transparency = FALSE;
 216         Settings.SixteenBit = TRUE;
 217
 218         Settings.SupportHiRes = FALSE;
 219         Settings.NetPlay = FALSE;
 220         Settings.ServerName [0] = 0;
 221         Settings.AutoSaveDelay = 30;
 222         Settings.ApplyCheats = FALSE;
 223         Settings.TurboMode = FALSE;
 224         Settings.TurboSkipFrames = 15;
 225
 226     Settings.ForcePAL = FALSE;
 227     Settings.ForceNTSC = FALSE;
 228
 229     Settings.HacksEnabled = FALSE;
 230     Settings.HacksFilter = FALSE;
 231
 232         Settings.HBlankStart = (256 * Settings.H_Max) / SNES_HCOUNTER_MAX;
 233
 234         Settings.AutoSaveDelay = 15*60; // Autosave each 15 minutes.
 235 }
 236
 237 void S9xSetRomFile(const char * path)
 238 {
 239         if (romFile) {
 240                 free(romFile);
 241                 free(basePath);
 242         }
 243
 244         romFile = strndup(path, PATH_MAX);
 245         basePath = strdup(romFile);
 246
 247         // Truncate base path at the last '.' char
 248         char * c = strrchr(basePath, '.');
 249         if (c) {
 250                 if (strcasecmp(c, ".gz") == 0) {
 251                         // Ignore the .gz part when truncating
 252                         *c = '\0';
 253                         c = strrchr(basePath, '.');
 254                         if (c) {
 255                                 *c = '\0';
 256                         }
 257                 } else {
 258                         *c = '\0';
 259                 }
 260         }
 261 }
 262
 263 static bool gotRomFile()
 264 {
 265         return romFile ? true : false;
 266 }
 267
 268 static void loadConfig(poptContext optCon, const char * file)
 269 {
 270         char * out;
 271         int newargc, ret;
 272         const char ** newargv;
 273         FILE * fp;
 274
 275         fp = fopen (file, "r");
 276         if (!fp) {
 277                 fprintf(stderr, "Cannot open config file %s\n", file);
 278                 return;
 279         }
 280
 281         ret = poptConfigFileToString (fp, &out, 0);
 282         if (ret)
 283             DIE("Cannot parse config file %s. ret=%d\n", file, ret);
 284
 285         poptParseArgvString(out, &newargc, &newargv);
 286
 287         poptStuffArgs(optCon, newargv);
 288
 289         free(out);
 290         fclose(fp);
 291         /* XXX: currently leaking newargv */
 292 }
 293
 294 static void parseArgs(poptContext optCon)
 295 {
 296         int rc;
 297         unsigned char scancode = 0;
 298
 299         while ((rc = poptGetNextOpt(optCon)) > 0) {
 300                 const char * val;
 301                 switch (rc) {
 302                         case 1:
 303                                 Config.enableAudio = false;
 304                                 break;
 305                         case 2:
 306                                 Settings.DisplayFrameRate = TRUE;
 307                                 break;
 308                         case 3:
 309                                 Settings.SkipFrames = atoi(poptGetOptArg(optCon));
 310                                 break;
 311                         case 4:
 312                                 Config.fullscreen = true;
 313                                 break;
 314                         case 5:
 315                                 Settings.SixteenBit = TRUE;
 316                                 Settings.Transparency = TRUE;
 317                                 break;
 318                         case 6:
 319                                 free(Config.scaler);
 320                                 Config.scaler = strdup(poptGetOptArg(optCon));
 321                                 break;
 322                         case 7:
 323                                 Settings.ForcePAL = TRUE;
 324                                 break;
 325                         case 8:
 326                                 Settings.ForceNTSC = TRUE;
 327                                 break;
 328                         case 9:
 329                                 Settings.TurboMode = TRUE;
 330                                 break;
 331                         case 10:
 332                                 loadConfig(optCon, poptGetOptArg(optCon));
 333                                 break;
 334                         case 11:
 335                                 val = poptGetOptArg(optCon);
 336                                 Settings.Mouse = TRUE;
 337                                 if (!val || atoi(val) <= 1) {
 338                                         // Enable mouse on first controller
 339                                         Settings.ControllerOption = SNES_MOUSE_SWAPPED;
 340                                 } else {
 341                                         // Enable mouse on second controller
 342                                         Settings.ControllerOption = SNES_MOUSE;
 343                                 }
 344                                 break;
 345                         case 12:
 346                                 Settings.SuperScope = TRUE;
 347                                 Settings.ControllerOption = SNES_SUPERSCOPE;
 348                                 break;
 349                         case 13:
 350                                 Config.snapshotLoad = true;
 351                                 Config.snapshotSave = true;
 352                                 break;
 353                         case 14:
 354                                 Settings.SoundPlaybackRate = atoi(poptGetOptArg(optCon));
 355                                 break;
 356                         case 15:
 357                                 Settings.SoundBufferSize = atoi(poptGetOptArg(optCon));
 358                                 break;
 359                         case 16:
 360                                 Config.touchscreenInput = true;
 361                                 break;
 362                         case 17:
 363                                 Config.touchscreenInput = true;
 364                                 // TODO  Touchscreen grid
 365                                 break;
 366                         case 18:
 367                                 Settings.HacksEnabled = TRUE;
 368                                 Settings.HacksFilter = TRUE;
 369                                 break;
 370                         case 19:
 371                                 Settings.HacksEnabled = TRUE;
 372                                 Settings.HacksFilter = FALSE;
 373                                 break;
 374                         case 100:
 375                                 scancode = atoi(poptGetOptArg(optCon));
 376                                 break;
 377                         case 101:
 378                                 Config.joypad1Mapping[scancode] |=
 379                                         buttonNameToBit(poptGetOptArg(optCon));
 380                                 break;
 381                         case 102:
 382                                 Config.action[scancode] |=
 383                                         actionNameToBit(poptGetOptArg(optCon));
 384                                 break;
 385                         case 200:
 386                                 free(Config.hacksFile);
 387                                 Config.hacksFile = strdup(poptGetOptArg(optCon));
 388                                 break;
 389                         default:
 390                                 DIE("Invalid popt argument (this is a bug): %d", rc);
 391                                 break;
 392                 }
 393         }
 394
 395         if (rc < -1) {
 396                 /* an error occurred during option processing */
 397                 fprintf(stderr, "%s: %s\n",
 398                         poptBadOption(optCon, 0),
 399                         poptStrerror(rc));
 400                 exit(2);
 401         }
 402
 403         /* if there's an extra unparsed arg it's our rom file */
 404         const char * extra_arg = poptGetArg(optCon);
 405         if (extra_arg)
 406                 S9xSetRomFile(extra_arg);
 407 }
 408
 409 void S9xLoadConfig(int argc, const char ** argv)
 410 {
 411         poptContext optCon =
 412                 poptGetContext("drnoksnes", argc, argv, optionsTable, 0);
 413         poptSetOtherOptionHelp(optCon, "<rom>");
 414
 415         // Builtin defaults
 416         loadDefaults();
 417
 418         // Read config file ~/apps/DrNokSnes.txt
 419         char defConfFile[PATH_MAX];
 420         sprintf(defConfFile, "%s/%s", getenv("HOME"), "apps/DrNokSnes.txt");
 421         loadConfig(optCon, defConfFile);
 422
 423         // Command line parameters (including --conf args)
 424         parseArgs(optCon);
 425
 426         if (!gotRomFile() && !hgwLaunched) {
 427                 // User did not specify a ROM file,
 428                 // and we're not being launched from D-Bus.
 429                 fprintf(stderr, "You need to specify a ROM, like this:\n");
 430                 poptPrintUsage(optCon, stdout, 0);
 431                 poptFreeContext(optCon);
 432                 exit(2);
 433         }
 434
 435         poptFreeContext(optCon);
 436 }
 437
 438 void S9xUnloadConfig()
 439 {
 440         if (romFile) {
 441                 free(romFile);
 442                 romFile = 0;
 443         }
 444         if (basePath) {
 445                 free(basePath);
 446                 basePath = 0;
 447         }
 448         if (Config.hacksFile) {
 449                 free(Config.hacksFile);
 450                 Config.hacksFile = 0;
 451         }
 452 }
 453