vcs.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
  11 #if CONF_GUI
  12 #include "osso.h"
  13 #endif
  14
  15 #define DIE(format, ...) do { \
  16                 fprintf(stderr, "Died at %s:%d: ", __FILE__, __LINE__ ); \
  17                 fprintf(stderr, format "\n", ## __VA_ARGS__); \
  18                 abort(); \
  19         } while (0);
  20
  21 struct config Config;
  22
  23 /** Path to current rom file, with extension. */
  24 static char * romFile;
  25 /** Path to rom file, without extension.
  26  *  Used as a simple optimization to S9xGetFilename
  27  */
  28 static char * basePath;
  29
  30 static struct poptOption commonOptionsTable[] = {
  31         { "disable-audio", 'a', POPT_ARG_NONE, 0, 1,
  32         "disable emulation and output of audio", 0 },
  33         { "display-framerate", 'r', POPT_ARG_NONE, 0, 2,
  34         "show frames per second counter in lower left corner", 0 },
  35         { "skip-frames", 's', POPT_ARG_INT, 0, 3,
  36         "render only 1 in every N frames", "NUM" },
  37         { "fullscreen", 'f', POPT_ARG_NONE, 0, 4,
  38         "start in fullscreen mode", 0 },
  39         { "transparency", 'y', POPT_ARG_NONE, 0, 5,
  40         "enable transparency effects (slower)", 0 },
  41         { "scaler", 'S', POPT_ARG_STRING, 0, 6,
  42         "select scaler to use", 0 },
  43         { "pal", 'p', POPT_ARG_NONE, 0, 7,
  44         "run in PAL mode", 0 },
  45         { "ntsc", 'n', POPT_ARG_NONE, 0, 8,
  46         "run in NTSC mode", 0 },
  47         { "turbo", 't', POPT_ARG_NONE, 0, 9,
  48         "turbo mode (do not try to sleep between frames)", 0 },
  49         { "conf", 'c', POPT_ARG_STRING, 0, 10,
  50         "extra configuration file to load", "FILE" },
  51         { "mouse", 'm', POPT_ARG_INT | POPT_ARGFLAG_OPTIONAL, 0, 11,
  52         "enable mouse on controller NUM", "NUM"},
  53         { "superscope", 'e', POPT_ARG_NONE, 0, 12,
  54         "enable SuperScope", 0},
  55         { "snapshot", 'o', POPT_ARG_NONE, 0, 13,
  56         "unfreeze previous game on start and freeze game on exit", 0 },
  57         { "audio-rate", 'u', POPT_ARG_INT, 0, 14,
  58         "audio output rate", "HZ" },
  59         { "audio-buffer-size", 'b', POPT_ARG_INT, 0, 15,
  60         "audio output buffer size", "SAMPLES" },
  61         { "touchscreen", 'd', POPT_ARG_NONE, 0, 16,
  62         "enable touchscreen controls", 0 },
  63         { "touchscreen-grid", 'D', POPT_ARG_NONE, 0, 17,
  64         "enable touchscreen controls and show grid", 0 },
  65         { "hacks", 'h', POPT_ARG_NONE, 0, 18,
  66         "enable safe subset of speedhacks", 0 },
  67         { "all-hacks", 'H', POPT_ARG_NONE, 0, 19,
  68         "enable all speedhacks (may break sound)", 0 },
  69         POPT_TABLEEND
  70 };
  71
  72 static struct poptOption configOptionsTable[] = {
  73         { "scancode", '\0', POPT_ARG_INT, 0, 100,
  74         "scancode to map", "CODE" },
  75         { "button", '\0', POPT_ARG_STRING, 0, 101,
  76         "SNES Button to press (A, B, X, Y, L, R, Up, Down, Left, Right)", "name" },
  77         { "action", '\0', POPT_ARG_STRING, 0, 102,
  78         "emulator action to do (fullscreen, quit, ...)", "action" },
  79         { "hacks-file", '\0', POPT_ARG_STRING, 0, 200,
  80         "path to snesadvance.dat file", "FILE" },
  81         POPT_TABLEEND
  82 };
  83
  84 static struct poptOption optionsTable[] = {
  85         { 0, '\0', POPT_ARG_INCLUDE_TABLE, commonOptionsTable, 0,
  86         "Common options", 0 },
  87         { 0, '\0', POPT_ARG_INCLUDE_TABLE, configOptionsTable, 0,
  88         "Configuration file options", 0 },
  89         POPT_AUTOHELP
  90         POPT_TABLEEND
  91 };
  92
  93 static unsigned short buttonNameToBit(const char *s) {
  94         if (strcasecmp(s, "A") == 0) {
  95                 return SNES_A_MASK;
  96         } else if (strcasecmp(s, "B") == 0) {
  97                 return SNES_B_MASK;
  98         } else if (strcasecmp(s, "X") == 0) {
  99                 return SNES_X_MASK;
 100         } else if (strcasecmp(s, "Y") == 0) {
 101                 return SNES_Y_MASK;
 102         } else if (strcasecmp(s, "L") == 0) {
 103                 return SNES_TL_MASK;
 104         } else if (strcasecmp(s, "R") == 0) {
 105                 return SNES_TR_MASK;
 106         } else if (strcasecmp(s, "UP") == 0) {
 107                 return SNES_UP_MASK;
 108         } else if (strcasecmp(s, "DOWN") == 0) {
 109                 return SNES_DOWN_MASK;
 110         } else if (strcasecmp(s, "LEFT") == 0) {
 111                 return SNES_LEFT_MASK;
 112         } else if (strcasecmp(s, "RIGHT") == 0) {
 113                 return SNES_RIGHT_MASK;
 114         } else if (strcasecmp(s, "START") == 0) {
 115                 return SNES_START_MASK;
 116         } else if (strcasecmp(s, "SELECT") == 0) {
 117                 return SNES_SELECT_MASK;
 118         } else {
 119                 DIE("Bad button name: %s\n", s);
 120         }
 121 }
 122
 123 static unsigned char actionNameToBit(const char *s) {
 124         if (strcasecmp(s, "quit") == 0) {
 125                 return kActionQuit;
 126         } else if (strcasecmp(s, "fullscreen") == 0) {
 127                 return kActionToggleFullscreen;
 128         } else if (strcasecmp(s, "quickload1") == 0) {
 129                 return kActionQuickLoad1;
 130         } else if (strcasecmp(s, "quicksave1") == 0) {
 131                 return kActionQuickSave1;
 132         } else if (strcasecmp(s, "quickload2") == 0) {
 133                 return kActionQuickLoad2;
 134         } else if (strcasecmp(s, "quicksave2") == 0) {
 135                 return kActionQuickSave2;
 136         } else {
 137                 DIE("Bad action name: %s\n", s);
 138         }
 139 }
 140
 141 const char * S9xGetFilename(FileTypes file)
 142 {
 143         static char filename[PATH_MAX + 1];
 144         const char * ext;
 145         switch (file) {
 146                 case FILE_ROM:
 147                         return romFile;
 148                 case FILE_SRAM:
 149                         ext = "srm";
 150                         break;
 151                 case FILE_FREEZE:
 152                         ext = "frz.gz";
 153                         break;
 154                 case FILE_CHT:
 155                         ext = "cht";
 156                         break;
 157                 case FILE_IPS:
 158                         ext = "ips";
 159                         break;
 160                 case FILE_SCREENSHOT:
 161                         ext = "png";
 162                         break;
 163                 case FILE_SDD1_DAT:
 164                         ext = "dat";
 165                         break;
 166                 default:
 167                         ext = "???";
 168                         break;
 169         }
 170
 171         snprintf(filename, PATH_MAX, "%s.%s", basePath, ext);
 172         return filename;
 173 }
 174
 175 const char * S9xGetQuickSaveFilename(unsigned int slot)
 176 {
 177         static char filename[PATH_MAX + 1];
 178         snprintf(filename, PATH_MAX, "%s.frz.%u.gz", basePath, slot);
 179         return filename;
 180 }
 181
 182 static void loadDefaults()
 183 {
 184         ZeroMemory(&Settings, sizeof(Settings));
 185         ZeroMemory(&Config, sizeof(Config));
 186
 187         romFile = 0;
 188         basePath = 0;
 189
 190         Config.quitting = false;
 191         Config.saver = false;
 192         Config.enableAudio = true;
 193         Config.fullscreen = false;
 194         Config.scaler = 0;
 195         Config.hacksFile = 0;
 196         Config.touchscreenInput = false;
 197         Config.touchscreenShow = false;
 198
 199         Settings.JoystickEnabled = FALSE;
 200         Settings.SoundPlaybackRate = 22050;
 201         Settings.Stereo = TRUE;
 202         Settings.SoundBufferSize = 512; // in samples
 203         Settings.CyclesPercentage = 100;
 204         Settings.DisableSoundEcho = FALSE;
 205         Settings.APUEnabled = FALSE;
 206         Settings.H_Max = SNES_CYCLES_PER_SCANLINE;
 207         Settings.SkipFrames = AUTO_FRAMERATE;
 208         Settings.Shutdown = Settings.ShutdownMaster = TRUE;
 209         Settings.FrameTimePAL = 20;     // in msecs
 210         Settings.FrameTimeNTSC = 16;
 211         Settings.FrameTime = Settings.FrameTimeNTSC;
 212         Settings.DisableSampleCaching = FALSE;
 213         Settings.DisableMasterVolume = FALSE;
 214         Settings.Mouse = FALSE;
 215         Settings.SuperScope = FALSE;
 216         Settings.MultiPlayer5 = FALSE;
 217         Settings.ControllerOption = SNES_JOYPAD;
 218
 219         Settings.ForceTransparency = FALSE;
 220         Settings.Transparency = FALSE;
 221         Settings.SixteenBit = TRUE;
 222
 223         Settings.SupportHiRes = FALSE;
 224         Settings.NetPlay = FALSE;
 225         Settings.ServerName [0] = 0;
 226         Settings.AutoSaveDelay = 30;
 227         Settings.ApplyCheats = FALSE;
 228         Settings.TurboMode = FALSE;
 229         Settings.TurboSkipFrames = 15;
 230
 231     Settings.ForcePAL = FALSE;
 232     Settings.ForceNTSC = FALSE;
 233
 234     Settings.HacksEnabled = FALSE;
 235     Settings.HacksFilter = FALSE;
 236
 237         Settings.HBlankStart = (256 * Settings.H_Max) / SNES_HCOUNTER_MAX;
 238
 239         Settings.AutoSaveDelay = 15*60; // Autosave each 15 minutes.
 240 }
 241
 242 void S9xSetRomFile(const char * path)
 243 {
 244         if (romFile) {
 245                 free(romFile);
 246                 free(basePath);
 247         }
 248
 249         romFile = strndup(path, PATH_MAX);
 250         basePath = strdup(romFile);
 251
 252         // Truncate base path at the last '.' char
 253         char * c = strrchr(basePath, '.');
 254         if (c) {
 255                 if (strcasecmp(c, ".gz") == 0) {
 256                         // Ignore the .gz part when truncating
 257                         *c = '\0';
 258                         c = strrchr(basePath, '.');
 259                         if (c) {
 260                                 *c = '\0';
 261                         }
 262                 } else {
 263                         *c = '\0';
 264                 }
 265         }
 266 }
 267
 268 static bool gotRomFile()
 269 {
 270         return romFile ? true : false;
 271 }
 272
 273 static void loadConfig(poptContext optCon, const char * file)
 274 {
 275         char * out;
 276         int newargc, ret;
 277         const char ** newargv;
 278         FILE * fp;
 279
 280         fp = fopen (file, "r");
 281         if (!fp) {
 282                 fprintf(stderr, "Cannot open config file %s\n", file);
 283                 return;
 284         }
 285
 286         ret = poptConfigFileToString (fp, &out, 0);
 287         if (ret)
 288             DIE("Cannot parse config file %s. ret=%d\n", file, ret);
 289
 290         poptParseArgvString(out, &newargc, &newargv);
 291
 292         poptStuffArgs(optCon, newargv);
 293
 294         free(out);
 295         fclose(fp);
 296         /* XXX: currently leaking newargv */
 297 }
 298
 299 static void parseArgs(poptContext optCon)
 300 {
 301         int rc;
 302         unsigned char scancode = 0;
 303
 304         while ((rc = poptGetNextOpt(optCon)) > 0) {
 305                 const char * val;
 306                 switch (rc) {
 307                         case 1:
 308                                 Config.enableAudio = false;
 309                                 break;
 310                         case 2:
 311                                 Settings.DisplayFrameRate = TRUE;
 312                                 break;
 313                         case 3:
 314                                 Settings.SkipFrames = atoi(poptGetOptArg(optCon));
 315                                 break;
 316                         case 4:
 317                                 Config.fullscreen = true;
 318                                 break;
 319                         case 5:
 320                                 Settings.SixteenBit = TRUE;
 321                                 Settings.Transparency = TRUE;
 322                                 break;
 323                         case 6:
 324                                 free(Config.scaler);
 325                                 Config.scaler = strdup(poptGetOptArg(optCon));
 326                                 break;
 327                         case 7:
 328                                 Settings.ForcePAL = TRUE;
 329                                 break;
 330                         case 8:
 331                                 Settings.ForceNTSC = TRUE;
 332                                 break;
 333                         case 9:
 334                                 Settings.TurboMode = TRUE;
 335                                 break;
 336                         case 10:
 337                                 loadConfig(optCon, poptGetOptArg(optCon));
 338                                 break;
 339                         case 11:
 340                                 val = poptGetOptArg(optCon);
 341                                 Settings.Mouse = TRUE;
 342                                 if (!val || atoi(val) <= 1) {
 343                                         // Enable mouse on first controller
 344                                         Settings.ControllerOption = SNES_MOUSE_SWAPPED;
 345                                 } else {
 346                                         // Enable mouse on second controller
 347                                         Settings.ControllerOption = SNES_MOUSE;
 348                                 }
 349                                 break;
 350                         case 12:
 351                                 Settings.SuperScope = TRUE;
 352                                 Settings.ControllerOption = SNES_SUPERSCOPE;
 353                                 break;
 354                         case 13:
 355                                 Config.snapshotLoad = true;
 356                                 Config.snapshotSave = true;
 357                                 break;
 358                         case 14:
 359                                 Settings.SoundPlaybackRate = atoi(poptGetOptArg(optCon));
 360                                 break;
 361                         case 15:
 362                                 Settings.SoundBufferSize = atoi(poptGetOptArg(optCon));
 363                                 break;
 364                         case 16:
 365                                 Config.touchscreenInput = true;
 366                                 break;
 367                         case 17:
 368                                 Config.touchscreenInput = true;
 369                                 Config.touchscreenShow = true;
 370                                 break;
 371                         case 18:
 372                                 Settings.HacksEnabled = TRUE;
 373                                 Settings.HacksFilter = TRUE;
 374                                 break;
 375                         case 19:
 376                                 Settings.HacksEnabled = TRUE;
 377                                 Settings.HacksFilter = FALSE;
 378                                 break;
 379                         case 100:
 380                                 scancode = atoi(poptGetOptArg(optCon));
 381                                 break;
 382                         case 101:
 383                                 Config.joypad1Mapping[scancode] |=
 384                                         buttonNameToBit(poptGetOptArg(optCon));
 385                                 break;
 386                         case 102:
 387                                 Config.action[scancode] |=
 388                                         actionNameToBit(poptGetOptArg(optCon));
 389                                 break;
 390                         case 200:
 391                                 free(Config.hacksFile);
 392                                 Config.hacksFile = strdup(poptGetOptArg(optCon));
 393                                 break;
 394                         default:
 395                                 DIE("Invalid popt argument (this is a bug): %d", rc);
 396                                 break;
 397                 }
 398         }
 399
 400         if (rc < -1) {
 401                 /* an error occurred during option processing */
 402                 fprintf(stderr, "%s: %s\n",
 403                         poptBadOption(optCon, 0),
 404                         poptStrerror(rc));
 405                 exit(2);
 406         }
 407
 408         /* if there's an extra unparsed arg it's our rom file */
 409         const char * extra_arg = poptGetArg(optCon);
 410         if (extra_arg)
 411                 S9xSetRomFile(extra_arg);
 412 }
 413
 414 void S9xLoadConfig(int argc, char ** argv)
 415 {
 416         poptContext optCon = poptGetContext("drnoksnes",
 417                 argc, const_cast<const char **>(argv), optionsTable, 0);
 418         poptSetOtherOptionHelp(optCon, "<rom>");
 419
 420         // Builtin defaults
 421         loadDefaults();
 422
 423         // Read config file ~/.config/drnoksnes.conf
 424         char defConfFile[PATH_MAX];
 425         sprintf(defConfFile, "%s/%s", getenv("HOME"), ".config/drnoksnes.conf");
 426         loadConfig(optCon, defConfFile);
 427
 428         // Command line parameters (including --conf args)
 429         parseArgs(optCon);
 430
 431 #if CONF_GUI
 432         if (!OssoOk())
 433 #endif
 434         {
 435                 if (!gotRomFile()) {
 436                         // User did not specify a ROM file in the command line
 437                         fprintf(stderr, "You need to specify a ROM, like this:\n");
 438                         poptPrintUsage(optCon, stdout, 0);
 439                         poptFreeContext(optCon);
 440                         exit(2);
 441                 }
 442         }
 443
 444         poptFreeContext(optCon);
 445 }
 446
 447 void S9xUnloadConfig()
 448 {
 449         if (romFile) {
 450                 free(romFile);
 451                 romFile = 0;
 452         }
 453         if (basePath) {
 454                 free(basePath);
 455                 basePath = 0;
 456         }
 457         if (Config.hacksFile) {
 458                 free(Config.hacksFile);
 459                 Config.hacksFile = 0;
 460         }
 461 }
 462