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         { "button2", '\0', POPT_ARG_STRING, 0, 102,
  80         "SNES Button to press for joypad 2", "name" },
  81         { "action", '\0', POPT_ARG_STRING, 0, 110,
  82         "emulator action to do (fullscreen, quit, ...)", "action" },
  83         { "hacks-file", '\0', POPT_ARG_STRING, 0, 200,
  84         "path to snesadvance.dat file", "FILE" },
  85         POPT_TABLEEND
  86 };
  87
  88 static struct poptOption optionsTable[] = {
  89         { 0, '\0', POPT_ARG_INCLUDE_TABLE, commonOptionsTable, 0,
  90         "Common options", 0 },
  91         { 0, '\0', POPT_ARG_INCLUDE_TABLE, configOptionsTable, 0,
  92         "Configuration file options", 0 },
  93         POPT_AUTOHELP
  94         POPT_TABLEEND
  95 };
  96
  97 static unsigned short buttonNameToBit(const char *s) {
  98         if (strcasecmp(s, "A") == 0) {
  99                 return SNES_A_MASK;
 100         } else if (strcasecmp(s, "B") == 0) {
 101                 return SNES_B_MASK;
 102         } else if (strcasecmp(s, "X") == 0) {
 103                 return SNES_X_MASK;
 104         } else if (strcasecmp(s, "Y") == 0) {
 105                 return SNES_Y_MASK;
 106         } else if (strcasecmp(s, "L") == 0) {
 107                 return SNES_TL_MASK;
 108         } else if (strcasecmp(s, "R") == 0) {
 109                 return SNES_TR_MASK;
 110         } else if (strcasecmp(s, "UP") == 0) {
 111                 return SNES_UP_MASK;
 112         } else if (strcasecmp(s, "DOWN") == 0) {
 113                 return SNES_DOWN_MASK;
 114         } else if (strcasecmp(s, "LEFT") == 0) {
 115                 return SNES_LEFT_MASK;
 116         } else if (strcasecmp(s, "RIGHT") == 0) {
 117                 return SNES_RIGHT_MASK;
 118         } else if (strcasecmp(s, "START") == 0) {
 119                 return SNES_START_MASK;
 120         } else if (strcasecmp(s, "SELECT") == 0) {
 121                 return SNES_SELECT_MASK;
 122         } else {
 123                 DIE("Bad button name: %s\n", s);
 124         }
 125 }
 126
 127 static unsigned char actionNameToBit(const char *s) {
 128         if (strcasecmp(s, "quit") == 0) {
 129                 return kActionQuit;
 130         } else if (strcasecmp(s, "fullscreen") == 0) {
 131                 return kActionToggleFullscreen;
 132         } else if (strcasecmp(s, "quickload1") == 0) {
 133                 return kActionQuickLoad1;
 134         } else if (strcasecmp(s, "quicksave1") == 0) {
 135                 return kActionQuickSave1;
 136         } else if (strcasecmp(s, "quickload2") == 0) {
 137                 return kActionQuickLoad2;
 138         } else if (strcasecmp(s, "quicksave2") == 0) {
 139                 return kActionQuickSave2;
 140         } else {
 141                 DIE("Bad action name: %s\n", s);
 142         }
 143 }
 144
 145 const char * S9xGetFilename(FileTypes file)
 146 {
 147         static char filename[PATH_MAX + 1];
 148         const char * ext;
 149         switch (file) {
 150                 case FILE_ROM:
 151                         return romFile;
 152                 case FILE_SRAM:
 153                         ext = "srm";
 154                         break;
 155                 case FILE_FREEZE:
 156                         ext = "frz.gz";
 157                         break;
 158                 case FILE_CHT:
 159                         ext = "cht";
 160                         break;
 161                 case FILE_IPS:
 162                         ext = "ips";
 163                         break;
 164                 case FILE_SCREENSHOT:
 165                         ext = "png";
 166                         break;
 167                 case FILE_SDD1_DAT:
 168                         ext = "dat";
 169                         break;
 170                 default:
 171                         ext = "???";
 172                         break;
 173         }
 174
 175         snprintf(filename, PATH_MAX, "%s.%s", basePath, ext);
 176         return filename;
 177 }
 178
 179 const char * S9xGetQuickSaveFilename(unsigned int slot)
 180 {
 181         static char filename[PATH_MAX + 1];
 182         snprintf(filename, PATH_MAX, "%s.frz.%u.gz", basePath, slot);
 183         return filename;
 184 }
 185
 186 static void loadDefaults()
 187 {
 188         ZeroMemory(&Settings, sizeof(Settings));
 189         ZeroMemory(&Config, sizeof(Config));
 190
 191         romFile = 0;
 192         basePath = 0;
 193
 194         Config.enableAudio = true;
 195
 196         Settings.SoundPlaybackRate = 22050;
 197         Settings.Stereo = TRUE;
 198         Settings.SoundBufferSize = 512; // in samples
 199         Settings.CyclesPercentage = 100;
 200         Settings.APUEnabled = FALSE;            // We'll enable it later
 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.ControllerOption = SNES_JOYPAD;
 208
 209         Settings.ForceTransparency = FALSE;     // We'll enable those later
 210         Settings.Transparency = FALSE;
 211         Settings.SixteenBit = TRUE;
 212
 213         Settings.SupportHiRes = FALSE;
 214         Settings.ApplyCheats = FALSE;
 215         Settings.TurboMode = FALSE;
 216         Settings.TurboSkipFrames = 15;
 217
 218     Settings.ForcePAL = FALSE;
 219     Settings.ForceNTSC = FALSE;
 220
 221     Settings.HacksEnabled = FALSE;
 222     Settings.HacksFilter = FALSE;
 223
 224         Settings.HBlankStart = (256 * Settings.H_Max) / SNES_HCOUNTER_MAX;
 225
 226         Settings.AutoSaveDelay = 15*60; // Autosave each 15 minutes.
 227 }
 228
 229 void S9xSetRomFile(const char * path)
 230 {
 231         if (romFile) {
 232                 free(romFile);
 233                 free(basePath);
 234         }
 235
 236         romFile = strndup(path, PATH_MAX);
 237         basePath = strdup(romFile);
 238
 239         // Truncate base path at the last '.' char
 240         char * c = strrchr(basePath, '.');
 241         if (c) {
 242                 if (strcasecmp(c, ".gz") == 0) {
 243                         // Ignore the .gz part when truncating
 244                         *c = '\0';
 245                         c = strrchr(basePath, '.');
 246                         if (c) {
 247                                 *c = '\0';
 248                         }
 249                 } else {
 250                         *c = '\0';
 251                 }
 252         }
 253 }
 254
 255 static bool gotRomFile()
 256 {
 257         return romFile ? true : false;
 258 }
 259
 260 static void loadConfig(poptContext optCon, const char * file)
 261 {
 262         char * out;
 263         int newargc, ret;
 264         const char ** newargv;
 265         FILE * fp;
 266
 267         fp = fopen (file, "r");
 268         if (!fp) {
 269                 fprintf(stderr, "Cannot open config file %s\n", file);
 270                 return;
 271         }
 272
 273         ret = poptConfigFileToString (fp, &out, 0);
 274         if (ret)
 275             DIE("Cannot parse config file %s. ret=%d\n", file, ret);
 276
 277         poptParseArgvString(out, &newargc, &newargv);
 278
 279         poptStuffArgs(optCon, newargv);
 280
 281         free(out);
 282         fclose(fp);
 283         /* XXX: currently leaking newargv */
 284 }
 285
 286 static void parseArgs(poptContext optCon)
 287 {
 288         int rc;
 289         unsigned char scancode = 0;
 290
 291         while ((rc = poptGetNextOpt(optCon)) > 0) {
 292                 const char * val;
 293                 switch (rc) {
 294                         case 1:
 295                                 Config.enableAudio = false;
 296                                 break;
 297                         case 2:
 298                                 Settings.DisplayFrameRate = TRUE;
 299                                 break;
 300                         case 3:
 301                                 Settings.SkipFrames = atoi(poptGetOptArg(optCon));
 302                                 break;
 303                         case 4:
 304                                 Config.fullscreen = true;
 305                                 break;
 306                         case 5:
 307                                 Settings.SixteenBit = TRUE;
 308                                 Settings.Transparency = TRUE;
 309                                 break;
 310                         case 6:
 311                                 free(Config.scaler);
 312                                 Config.scaler = strdup(poptGetOptArg(optCon));
 313                                 break;
 314                         case 7:
 315                                 Settings.ForcePAL = TRUE;
 316                                 break;
 317                         case 8:
 318                                 Settings.ForceNTSC = TRUE;
 319                                 break;
 320                         case 9:
 321                                 Settings.TurboMode = TRUE;
 322                                 break;
 323                         case 10:
 324                                 loadConfig(optCon, poptGetOptArg(optCon));
 325                                 break;
 326                         case 11:
 327                                 val = poptGetOptArg(optCon);
 328                                 Settings.Mouse = TRUE;
 329                                 if (!val || atoi(val) <= 1) {
 330                                         // Enable mouse on first controller
 331                                         Settings.ControllerOption = SNES_MOUSE_SWAPPED;
 332                                 } else {
 333                                         // Enable mouse on second controller
 334                                         Settings.ControllerOption = SNES_MOUSE;
 335                                 }
 336                                 break;
 337                         case 12:
 338                                 Settings.SuperScope = TRUE;
 339                                 Settings.ControllerOption = SNES_SUPERSCOPE;
 340                                 break;
 341                         case 13:
 342                                 Config.snapshotLoad = true;
 343                                 Config.snapshotSave = true;
 344                                 break;
 345                         case 14:
 346                                 Settings.SoundPlaybackRate = atoi(poptGetOptArg(optCon));
 347                                 break;
 348                         case 15:
 349                                 Settings.SoundBufferSize = atoi(poptGetOptArg(optCon));
 350                                 break;
 351                         case 16:
 352                                 Config.touchscreenInput = 1;
 353                                 break;
 354                         case 17:
 355                                 Config.touchscreenInput = 1;
 356                                 Config.touchscreenShow = true;
 357                                 break;
 358                         case 18:
 359                                 Settings.HacksEnabled = TRUE;
 360                                 Settings.HacksFilter = TRUE;
 361                                 break;
 362                         case 19:
 363                                 Settings.HacksEnabled = TRUE;
 364                                 Settings.HacksFilter = FALSE;
 365                                 break;
 366                         case 20:
 367                                 Config.saver = true;
 368                                 break;
 369                         case 100:
 370                                 scancode = atoi(poptGetOptArg(optCon));
 371                                 break;
 372                         case 101:
 373                                 Config.joypad1Mapping[scancode] |=
 374                                         buttonNameToBit(poptGetOptArg(optCon));
 375                                 Config.joypad1Enabled = true;
 376                                 break;
 377                         case 102:
 378                                 Config.joypad2Mapping[scancode] |=
 379                                         buttonNameToBit(poptGetOptArg(optCon));
 380                                 Config.joypad2Enabled = true;
 381                                 break;
 382                         case 110:
 383                                 Config.action[scancode] |=
 384                                         actionNameToBit(poptGetOptArg(optCon));
 385                                 break;
 386                         case 200:
 387                                 free(Config.hacksFile);
 388                                 Config.hacksFile = strdup(poptGetOptArg(optCon));
 389                                 break;
 390                         default:
 391                                 DIE("Invalid popt argument (this is a bug): %d", rc);
 392                                 break;
 393                 }
 394         }
 395
 396         if (rc < -1) {
 397                 /* an error occurred during option processing */
 398                 fprintf(stderr, "%s: %s\n",
 399                         poptBadOption(optCon, 0),
 400                         poptStrerror(rc));
 401                 exit(2);
 402         }
 403
 404         /* if there's an extra unparsed arg it's our rom file */
 405         const char * extra_arg = poptGetArg(optCon);
 406         if (extra_arg)
 407                 S9xSetRomFile(extra_arg);
 408 }
 409
 410 void S9xLoadConfig(int argc, char ** argv)
 411 {
 412         poptContext optCon = poptGetContext("drnoksnes",
 413                 argc, const_cast<const char **>(argv), optionsTable, 0);
 414         poptSetOtherOptionHelp(optCon, "<rom>");
 415
 416         // Builtin defaults
 417         loadDefaults();
 418
 419         // Read config file ~/.config/drnoksnes.conf
 420         char defConfFile[PATH_MAX];
 421         sprintf(defConfFile, "%s/%s", getenv("HOME"), ".config/drnoksnes.conf");
 422         loadConfig(optCon, defConfFile);
 423
 424         // Command line parameters (including --conf args)
 425         parseArgs(optCon);
 426
 427 #if CONF_GUI
 428         if (!OssoOk())
 429 #endif
 430         {
 431                 if (!gotRomFile()) {
 432                         // User did not specify a ROM file in the command line
 433                         fprintf(stderr, "You need to specify a ROM, like this:\n");
 434                         poptPrintUsage(optCon, stdout, 0);
 435                         poptFreeContext(optCon);
 436                         exit(2);
 437                 }
 438         }
 439
 440         poptFreeContext(optCon);
 441 }
 442
 443 void S9xUnloadConfig()
 444 {
 445         if (romFile) {
 446                 free(romFile);
 447                 romFile = 0;
 448         }
 449         if (basePath) {
 450                 free(basePath);
 451                 basePath = 0;
 452         }
 453         if (Config.hacksFile) {
 454                 free(Config.hacksFile);
 455                 Config.hacksFile = 0;
 456         }
 457 }
 458