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
  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         { "saver", 'R', POPT_ARG_NONE, 0, 20,
  70         "save&exit when the emulator window is unfocused", 0 },
  71         POPT_TABLEEND
  72 };
  73
  74 static struct poptOption configOptionsTable[] = {
  75         { "scancode", '\0', POPT_ARG_INT, 0, 100,
  76         "scancode to map", "CODE" },
  77         { "button", '\0', POPT_ARG_STRING, 0, 101,
  78         "SNES Button to press (A, B, X, Y, L, R, Up, Down, Left, Right)", "name" },
  79         { "action", '\0', POPT_ARG_STRING, 0, 102,
  80         "emulator action to do (fullscreen, quit, ...)", "action" },
  81         { "hacks-file", '\0', POPT_ARG_STRING, 0, 200,
  82         "path to snesadvance.dat file", "FILE" },
  83         POPT_TABLEEND
  84 };
  85
  86 static struct poptOption optionsTable[] = {
  87         { 0, '\0', POPT_ARG_INCLUDE_TABLE, commonOptionsTable, 0,
  88         "Common options", 0 },
  89         { 0, '\0', POPT_ARG_INCLUDE_TABLE, configOptionsTable, 0,
  90         "Configuration file options", 0 },
  91         POPT_AUTOHELP
  92         POPT_TABLEEND
  93 };
  94
  95 static unsigned short buttonNameToBit(const char *s) {
  96         if (strcasecmp(s, "A") == 0) {
  97                 return SNES_A_MASK;
  98         } else if (strcasecmp(s, "B") == 0) {
  99                 return SNES_B_MASK;
 100         } else if (strcasecmp(s, "X") == 0) {
 101                 return SNES_X_MASK;
 102         } else if (strcasecmp(s, "Y") == 0) {
 103                 return SNES_Y_MASK;
 104         } else if (strcasecmp(s, "L") == 0) {
 105                 return SNES_TL_MASK;
 106         } else if (strcasecmp(s, "R") == 0) {
 107                 return SNES_TR_MASK;
 108         } else if (strcasecmp(s, "UP") == 0) {
 109                 return SNES_UP_MASK;
 110         } else if (strcasecmp(s, "DOWN") == 0) {
 111                 return SNES_DOWN_MASK;
 112         } else if (strcasecmp(s, "LEFT") == 0) {
 113                 return SNES_LEFT_MASK;
 114         } else if (strcasecmp(s, "RIGHT") == 0) {
 115                 return SNES_RIGHT_MASK;
 116         } else if (strcasecmp(s, "START") == 0) {
 117                 return SNES_START_MASK;
 118         } else if (strcasecmp(s, "SELECT") == 0) {
 119                 return SNES_SELECT_MASK;
 120         } else {
 121                 DIE("Bad button name: %s\n", s);
 122         }
 123 }
 124
 125 static unsigned char actionNameToBit(const char *s) {
 126         if (strcasecmp(s, "quit") == 0) {
 127                 return kActionQuit;
 128         } else if (strcasecmp(s, "fullscreen") == 0) {
 129                 return kActionToggleFullscreen;
 130         } else if (strcasecmp(s, "quickload1") == 0) {
 131                 return kActionQuickLoad1;
 132         } else if (strcasecmp(s, "quicksave1") == 0) {
 133                 return kActionQuickSave1;
 134         } else if (strcasecmp(s, "quickload2") == 0) {
 135                 return kActionQuickLoad2;
 136         } else if (strcasecmp(s, "quicksave2") == 0) {
 137                 return kActionQuickSave2;
 138         } else {
 139                 DIE("Bad action name: %s\n", s);
 140         }
 141 }
 142
 143 const char * S9xGetFilename(FileTypes file)
 144 {
 145         static char filename[PATH_MAX + 1];
 146         const char * ext;
 147         switch (file) {
 148                 case FILE_ROM:
 149                         return romFile;
 150                 case FILE_SRAM:
 151                         ext = "srm";
 152                         break;
 153                 case FILE_FREEZE:
 154                         ext = "frz.gz";
 155                         break;
 156                 case FILE_CHT:
 157                         ext = "cht";
 158                         break;
 159                 case FILE_IPS:
 160                         ext = "ips";
 161                         break;
 162                 case FILE_SCREENSHOT:
 163                         ext = "png";
 164                         break;
 165                 case FILE_SDD1_DAT:
 166                         ext = "dat";
 167                         break;
 168                 default:
 169                         ext = "???";
 170                         break;
 171         }
 172
 173         snprintf(filename, PATH_MAX, "%s.%s", basePath, ext);
 174         return filename;
 175 }
 176
 177 const char * S9xGetQuickSaveFilename(unsigned int slot)
 178 {
 179         static char filename[PATH_MAX + 1];
 180         snprintf(filename, PATH_MAX, "%s.frz.%u.gz", basePath, slot);
 181         return filename;
 182 }
 183
 184 static void loadDefaults()
 185 {
 186         ZeroMemory(&Settings, sizeof(Settings));
 187         ZeroMemory(&Config, sizeof(Config));
 188
 189         romFile = 0;
 190         basePath = 0;
 191
 192         Config.quitting = false;
 193         Config.saver = false;
 194         Config.enableAudio = true;
 195         Config.fullscreen = false;
 196         Config.scaler = 0;
 197         Config.hacksFile = 0;
 198         Config.touchscreenInput = false;
 199         Config.touchscreenShow = false;
 200
 201         Settings.JoystickEnabled = FALSE;
 202         Settings.SoundPlaybackRate = 22050;
 203         Settings.Stereo = TRUE;
 204         Settings.SoundBufferSize = 512; // in samples
 205         Settings.CyclesPercentage = 100;
 206         Settings.DisableSoundEcho = FALSE;
 207         Settings.APUEnabled = FALSE;
 208         Settings.H_Max = SNES_CYCLES_PER_SCANLINE;
 209         Settings.SkipFrames = AUTO_FRAMERATE;
 210         Settings.Shutdown = Settings.ShutdownMaster = TRUE;
 211         Settings.FrameTimePAL = 20;     // in msecs
 212         Settings.FrameTimeNTSC = 16;
 213         Settings.FrameTime = Settings.FrameTimeNTSC;
 214         Settings.DisableSampleCaching = FALSE;
 215         Settings.DisableMasterVolume = FALSE;
 216         Settings.Mouse = FALSE;
 217         Settings.SuperScope = FALSE;
 218         Settings.MultiPlayer5 = FALSE;
 219         Settings.ControllerOption = SNES_JOYPAD;
 220
 221         Settings.ForceTransparency = FALSE;
 222         Settings.Transparency = FALSE;
 223         Settings.SixteenBit = TRUE;
 224
 225         Settings.SupportHiRes = FALSE;
 226         Settings.NetPlay = FALSE;
 227         Settings.ServerName [0] = 0;
 228         Settings.AutoSaveDelay = 30;
 229         Settings.ApplyCheats = FALSE;
 230         Settings.TurboMode = FALSE;
 231         Settings.TurboSkipFrames = 15;
 232
 233     Settings.ForcePAL = FALSE;
 234     Settings.ForceNTSC = FALSE;
 235
 236     Settings.HacksEnabled = FALSE;
 237     Settings.HacksFilter = FALSE;
 238
 239         Settings.HBlankStart = (256 * Settings.H_Max) / SNES_HCOUNTER_MAX;
 240
 241         Settings.AutoSaveDelay = 15*60; // Autosave each 15 minutes.
 242 }
 243
 244 void S9xSetRomFile(const char * path)
 245 {
 246         if (romFile) {
 247                 free(romFile);
 248                 free(basePath);
 249         }
 250
 251         romFile = strndup(path, PATH_MAX);
 252         basePath = strdup(romFile);
 253
 254         // Truncate base path at the last '.' char
 255         char * c = strrchr(basePath, '.');
 256         if (c) {
 257                 if (strcasecmp(c, ".gz") == 0) {
 258                         // Ignore the .gz part when truncating
 259                         *c = '\0';
 260                         c = strrchr(basePath, '.');
 261                         if (c) {
 262                                 *c = '\0';
 263                         }
 264                 } else {
 265                         *c = '\0';
 266                 }
 267         }
 268 }
 269
 270 static bool gotRomFile()
 271 {
 272         return romFile ? true : false;
 273 }
 274
 275 static void loadConfig(poptContext optCon, const char * file)
 276 {
 277         char * out;
 278         int newargc, ret;
 279         const char ** newargv;
 280         FILE * fp;
 281
 282         fp = fopen (file, "r");
 283         if (!fp) {
 284                 fprintf(stderr, "Cannot open config file %s\n", file);
 285                 return;
 286         }
 287
 288         ret = poptConfigFileToString (fp, &out, 0);
 289         if (ret)
 290             DIE("Cannot parse config file %s. ret=%d\n", file, ret);
 291
 292         poptParseArgvString(out, &newargc, &newargv);
 293
 294         poptStuffArgs(optCon, newargv);
 295
 296         free(out);
 297         fclose(fp);
 298         /* XXX: currently leaking newargv */
 299 }
 300
 301 static void parseArgs(poptContext optCon)
 302 {
 303         int rc;
 304         unsigned char scancode = 0;
 305
 306         while ((rc = poptGetNextOpt(optCon)) > 0) {
 307                 const char * val;
 308                 switch (rc) {
 309                         case 1:
 310                                 Config.enableAudio = false;
 311                                 break;
 312                         case 2:
 313                                 Settings.DisplayFrameRate = TRUE;
 314                                 break;
 315                         case 3:
 316                                 Settings.SkipFrames = atoi(poptGetOptArg(optCon));
 317                                 break;
 318                         case 4:
 319                                 Config.fullscreen = true;
 320                                 break;
 321                         case 5:
 322                                 Settings.SixteenBit = TRUE;
 323                                 Settings.Transparency = TRUE;
 324                                 break;
 325                         case 6:
 326                                 free(Config.scaler);
 327                                 Config.scaler = strdup(poptGetOptArg(optCon));
 328                                 break;
 329                         case 7:
 330                                 Settings.ForcePAL = TRUE;
 331                                 break;
 332                         case 8:
 333                                 Settings.ForceNTSC = TRUE;
 334                                 break;
 335                         case 9:
 336                                 Settings.TurboMode = TRUE;
 337                                 break;
 338                         case 10:
 339                                 loadConfig(optCon, poptGetOptArg(optCon));
 340                                 break;
 341                         case 11:
 342                                 val = poptGetOptArg(optCon);
 343                                 Settings.Mouse = TRUE;
 344                                 if (!val || atoi(val) <= 1) {
 345                                         // Enable mouse on first controller
 346                                         Settings.ControllerOption = SNES_MOUSE_SWAPPED;
 347                                 } else {
 348                                         // Enable mouse on second controller
 349                                         Settings.ControllerOption = SNES_MOUSE;
 350                                 }
 351                                 break;
 352                         case 12:
 353                                 Settings.SuperScope = TRUE;
 354                                 Settings.ControllerOption = SNES_SUPERSCOPE;
 355                                 break;
 356                         case 13:
 357                                 Config.snapshotLoad = true;
 358                                 Config.snapshotSave = true;
 359                                 break;
 360                         case 14:
 361                                 Settings.SoundPlaybackRate = atoi(poptGetOptArg(optCon));
 362                                 break;
 363                         case 15:
 364                                 Settings.SoundBufferSize = atoi(poptGetOptArg(optCon));
 365                                 break;
 366                         case 16:
 367                                 Config.touchscreenInput = true;
 368                                 break;
 369                         case 17:
 370                                 Config.touchscreenInput = true;
 371                                 Config.touchscreenShow = true;
 372                                 break;
 373                         case 18:
 374                                 Settings.HacksEnabled = TRUE;
 375                                 Settings.HacksFilter = TRUE;
 376                                 break;
 377                         case 19:
 378                                 Settings.HacksEnabled = TRUE;
 379                                 Settings.HacksFilter = FALSE;
 380                                 break;
 381                         case 20:
 382                                 Config.saver = true;
 383                                 break;
 384                         case 100:
 385                                 scancode = atoi(poptGetOptArg(optCon));
 386                                 break;
 387                         case 101:
 388                                 Config.joypad1Mapping[scancode] |=
 389                                         buttonNameToBit(poptGetOptArg(optCon));
 390                                 break;
 391                         case 102:
 392                                 Config.action[scancode] |=
 393                                         actionNameToBit(poptGetOptArg(optCon));
 394                                 break;
 395                         case 200:
 396                                 free(Config.hacksFile);
 397                                 Config.hacksFile = strdup(poptGetOptArg(optCon));
 398                                 break;
 399                         default:
 400                                 DIE("Invalid popt argument (this is a bug): %d", rc);
 401                                 break;
 402                 }
 403         }
 404
 405         if (rc < -1) {
 406                 /* an error occurred during option processing */
 407                 fprintf(stderr, "%s: %s\n",
 408                         poptBadOption(optCon, 0),
 409                         poptStrerror(rc));
 410                 exit(2);
 411         }
 412
 413         /* if there's an extra unparsed arg it's our rom file */
 414         const char * extra_arg = poptGetArg(optCon);
 415         if (extra_arg)
 416                 S9xSetRomFile(extra_arg);
 417 }
 418
 419 void S9xLoadConfig(int argc, char ** argv)
 420 {
 421         poptContext optCon = poptGetContext("drnoksnes",
 422                 argc, const_cast<const char **>(argv), optionsTable, 0);
 423         poptSetOtherOptionHelp(optCon, "<rom>");
 424
 425         // Builtin defaults
 426         loadDefaults();
 427
 428         // Read config file ~/.config/drnoksnes.conf
 429         char defConfFile[PATH_MAX];
 430         sprintf(defConfFile, "%s/%s", getenv("HOME"), ".config/drnoksnes.conf");
 431         loadConfig(optCon, defConfFile);
 432
 433         // Command line parameters (including --conf args)
 434         parseArgs(optCon);
 435
 436 #if CONF_GUI
 437         if (!OssoOk())
 438 #endif
 439         {
 440                 if (!gotRomFile()) {
 441                         // User did not specify a ROM file in the command line
 442                         fprintf(stderr, "You need to specify a ROM, like this:\n");
 443                         poptPrintUsage(optCon, stdout, 0);
 444                         poptFreeContext(optCon);
 445                         exit(2);
 446                 }
 447         }
 448
 449         poptFreeContext(optCon);
 450 }
 451
 452 void S9xUnloadConfig()
 453 {
 454         if (romFile) {
 455                 free(romFile);
 456                 romFile = 0;
 457         }
 458         if (basePath) {
 459                 free(basePath);
 460                 basePath = 0;
 461         }
 462         if (Config.hacksFile) {
 463                 free(Config.hacksFile);
 464                 Config.hacksFile = 0;
 465         }
 466 }
 467