drivers/common/main.c

   1 /* FCE Ultra - NES/Famicom Emulator
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18
  19 #include <unistd.h>
  20 #include <sys/types.h>
  21 #include <signal.h>
  22 #include <sys/time.h>
  23 #include <sys/stat.h>
  24 #include <string.h>
  25 #include <strings.h>
  26 #include <errno.h>
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29
  30 #include "main.h"
  31 #include "throttle.h"
  32 #include "config.h"
  33 #include "args.h"
  34 #include "unixdsp.h"
  35 #include "cheat.h"
  36 #include "dface.h"
  37 #include "platform.h"
  38 #include "menu.h"
  39 #include "settings.h"
  40 #include "../libpicofe/config_file.h"
  41
  42 #include "../../fce.h"
  43 #include "../../cart.h"
  44
  45
  46 // these are now here to try to make compatible configs
  47 // between different versions of the emu
  48 DSETTINGS Settings;
  49 CFGSTRUCT DriverConfig[]={
  50         AC(Settings.turbo_rate_add),
  51         AC(Settings.sound_rate),
  52         AC(Settings.showfps),
  53         AC(Settings.scaling),
  54         AC(Settings.frameskip),
  55         AC(Settings.sstate_confirm),
  56         AC(Settings.region_force),
  57         AC(Settings.cpuclock),
  58         AC(Settings.mmuhack),
  59         AC(Settings.ramtimings),
  60         AC(Settings.gamma),
  61         AC(Settings.perfect_vsync),
  62         AC(Settings.accurate_mode),
  63         AC(Settings.hw_filter),
  64         ENDCFGSTRUCT
  65 };
  66
  67 void CleanSurface(void);
  68
  69 // internals
  70 extern uint8 Exit; // exit emu loop flag
  71 extern int FSkip;
  72 void CloseGame(void);
  73
  74 FCEUGI *fceugi = NULL;
  75 int ntsccol=0,ntschue=-1,ntsctint=-1;
  76 int soundvol=70;
  77 int inited=0;
  78
  79 int srendlinev[2]={8,0};
  80 int erendlinev[2]={231,239};
  81 int srendline,erendline;
  82
  83
  84 static char BaseDirectory[2048];
  85
  86 int eoptions=0;
  87
  88 static void DriverKill(void);
  89 static int DriverInitialize(void);
  90
  91 static int gametype;
  92 #include "input.c"
  93
  94 static void ParseGI(FCEUGI *gi)
  95 {
  96  gametype=gi->type;
  97
  98  InputType[0]=UsrInputType[0];
  99  InputType[1]=UsrInputType[1];
 100  InputTypeFC=UsrInputTypeFC;
 101
 102  if(gi->input[0]>=0)
 103   InputType[0]=gi->input[0];
 104  if(gi->input[1]>=0)
 105   InputType[1]=gi->input[1];
 106  if(gi->inputfc>=0)
 107   InputTypeFC=gi->inputfc;
 108 }
 109
 110 void FCEUD_PrintError(char *s)
 111 {
 112  puts(s);
 113 }
 114
 115 char *cpalette=0;
 116 void LoadCPalette(void)
 117 {
 118  char tmpp[192];
 119  FILE *fp;
 120
 121  if(!(fp=fopen(cpalette,"rb")))
 122  {
 123   printf(" Error loading custom palette from file: %s\n",cpalette);
 124   free(cpalette);
 125   cpalette=0;
 126   return;
 127  }
 128  fread(tmpp,1,192,fp);
 129  FCEUI_SetPaletteArray((uint8 *)tmpp);
 130  fclose(fp);
 131 }
 132
 133 static CFGSTRUCT fceuconfig[]={
 134         AC(soundvol),
 135         ACS(cpalette),
 136         AC(ntsctint),
 137         AC(ntschue),
 138         AC(ntsccol),
 139         AC(UsrInputTypeFC),
 140         ACA(UsrInputType),
 141         AC(powerpadside),
 142         AC(powerpadsc),
 143         AC(eoptions),
 144         ACA(srendlinev),
 145         ACA(erendlinev),
 146         ADDCFGSTRUCT(DriverConfig),
 147         ENDCFGSTRUCT
 148 };
 149
 150 static const char *skip_path(const char *path)
 151 {
 152         const char *p;
 153         if (path == NULL) return NULL;
 154         for (p = path+strlen(path)-1; p > path && *p != '/'; p--);
 155         if (*p == '/') p++;
 156         return p;
 157 }
 158
 159 int SaveConfig(const char *llgn_path)
 160 {
 161         const char *name = skip_path(llgn_path);
 162         char tdir[2048];
 163         FILE *f;
 164         int ret;
 165
 166         if (name)
 167              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 168         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 169         printf("saving cfg to %s ... ", tdir); fflush(stdout);
 170         FCEUI_GetNTSCTH(&ntsctint, &ntschue);
 171         ret=SaveFCEUConfig(tdir,fceuconfig);
 172         printf(ret == 0 ? "done\n" : "failed\n");
 173
 174         // keys
 175         if (name)
 176              sprintf(tdir,"%s"PSS"cfg"PSS"%s_keys.cfg",BaseDirectory,name);
 177         else sprintf(tdir,"%s"PSS"fceu_keys.cfg",BaseDirectory);
 178         f=fopen(tdir, "w");
 179         if (f!=NULL) {
 180          config_write_keys(f);
 181          fclose(f);
 182         }
 183
 184         return ret;
 185 }
 186
 187 static int LoadConfig(const char *llgn_path)
 188 {
 189         const char *name = skip_path(llgn_path);
 190         char tdir[2048];
 191         FILE *f;
 192         int ret, l;
 193
 194         if (name)
 195              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 196         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 197         printf("loading cfg from %s ... ", tdir); fflush(stdout);
 198         FCEUI_GetNTSCTH(&ntsctint, &ntschue); /* Get default settings for if no config file exists. */
 199         ret=LoadFCEUConfig(tdir,fceuconfig);
 200         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 201         printf(ret == 0 ? "done\n" : "failed\n");
 202
 203         // keys
 204         if (name)
 205              sprintf(tdir,"%s"PSS"cfg"PSS"%s_keys.cfg",BaseDirectory,name);
 206         else sprintf(tdir,"%s"PSS"fceu_keys.cfg",BaseDirectory);
 207         f=fopen(tdir, "r");
 208         if (f!=NULL) {
 209          l=fread(tdir,1,sizeof(tdir)-1,f);
 210          tdir[l]=0;
 211          config_read_keys(tdir);
 212          fclose(f);
 213         }
 214
 215         return ret;
 216 }
 217
 218 static void LoadLLGN(void)
 219 {
 220  char tdir[2048];
 221  FILE *f;
 222  int len;
 223  sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 224  f=fopen(tdir, "r");
 225  if(f)
 226  {
 227   len = fread(lastLoadedGameName, 1, sizeof(lastLoadedGameName)-1, f);
 228   lastLoadedGameName[len] = 0;
 229   fclose(f);
 230  }
 231 }
 232
 233 static void SaveLLGN(void)
 234 {
 235  // save last loaded game name
 236  if (lastLoadedGameName[0] && !(eoptions&EO_NOAUTOWRITE))
 237  {
 238   char tdir[2048];
 239   FILE *f;
 240   sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 241   f=fopen(tdir, "w");
 242   if(f)
 243   {
 244    fwrite(lastLoadedGameName, 1, strlen(lastLoadedGameName), f);
 245    fclose(f);
 246    sync();
 247   }
 248  }
 249 }
 250
 251
 252 static void CreateDirs(void)
 253 {
 254  char *subs[]={"fcs","snaps","gameinfo","sav","cheats","cfg","pal"};
 255  char tdir[2048];
 256  int x;
 257
 258  mkdir(BaseDirectory,S_IRWXU);
 259  for(x=0;x<sizeof(subs)/sizeof(subs[0]);x++)
 260  {
 261   sprintf(tdir,"%s"PSS"%s",BaseDirectory,subs[x]);
 262   mkdir(tdir,S_IRWXU);
 263  }
 264 }
 265
 266 static void SetSignals(void (*t)(int))
 267 {
 268   int sigs[11]={SIGINT,SIGTERM,SIGHUP,SIGPIPE,SIGSEGV,SIGFPE,SIGKILL,SIGALRM,SIGABRT,SIGUSR1,SIGUSR2};
 269   int x;
 270   for(x=0;x<11;x++)
 271    signal(sigs[x],t);
 272 }
 273
 274 static void CloseStuff(int signum)
 275 {
 276         DriverKill();
 277         printf("\nSignal %d has been caught and dealt with...\n",signum);
 278         switch(signum)
 279         {
 280          case SIGINT:printf("How DARE you interrupt me!\n");break;
 281          case SIGTERM:printf("MUST TERMINATE ALL HUMANS\n");break;
 282          case SIGHUP:printf("Reach out and hang-up on someone.\n");break;
 283          case SIGPIPE:printf("The pipe has broken!  Better watch out for floods...\n");break;
 284          case SIGSEGV:printf("Iyeeeeeeeee!!!  A segmentation fault has occurred.  Have a fluffy day.\n");break;
 285          #if(SIGBUS!=SIGSEGV)
 286          case SIGBUS:printf("I told you to be nice to the driver.\n");break;
 287          #endif
 288          case SIGFPE:printf("Those darn floating points.  Ne'er know when they'll bite!\n");break;
 289          case SIGALRM:printf("Don't throw your clock at the meowing cats!\n");break;
 290          case SIGABRT:printf("Abort, Retry, Ignore, Fail?\n");break;
 291          case SIGUSR1:
 292          case SIGUSR2:printf("Killing your processes is not nice.\n");break;
 293         }
 294         exit(1);
 295 }
 296
 297 static int DoArgs(int argc, char *argv[])
 298 {
 299         static char *cortab[5]={"none","gamepad","zapper","powerpad","arkanoid"};
 300         static int cortabi[5]={SI_NONE,SI_GAMEPAD,
 301                                SI_ZAPPER,SI_POWERPADA,SI_ARKANOID};
 302         static char *fccortab[5]={"none","arkanoid","shadow","4player","fkb"};
 303         static int fccortabi[5]={SIFC_NONE,SIFC_ARKANOID,SIFC_SHADOW,
 304                                  SIFC_4PLAYER,SIFC_FKB};
 305
 306         int x, ret;
 307         static char *inputa[2]={0,0};
 308         static char *fcexp=0;
 309         static int docheckie[4];
 310 #ifdef NETWORK
 311         static int docheckie2[2]={0,0};
 312 #endif
 313
 314         static ARGPSTRUCT FCEUArgs[]={
 315          {"-soundvol",0,&soundvol,0},
 316          {"-cpalette",0,&cpalette,0x4001},
 317
 318          {"-ntsccol",0,&ntsccol,0},
 319          {"-pal",&docheckie[0],0,0},
 320          {"-input1",0,&inputa[0],0x4001},{"-input2",0,&inputa[1],0x4001},
 321          {"-fcexp",0,&fcexp,0x4001},
 322
 323          {"-gg",0,&eoptions,0x8000|EO_GG},
 324          {"-no8lim",0,&eoptions,0x8000|EO_NO8LIM},
 325          {"-snapname",0,&eoptions,0x8000|EO_SNAPNAME},
 326          {"-nofs",0,&eoptions,0x8000|EO_NOFOURSCORE},
 327          {"-clipsides",0,&eoptions,0x8000|EO_CLIPSIDES},
 328          {"-nothrottle",0,&eoptions,0x8000|EO_NOTHROTTLE},
 329          {"-noautowrite",0,&eoptions,0x8000|EO_NOAUTOWRITE},
 330          {"-slstart",0,&srendlinev[0],0},{"-slend",0,&erendlinev[0],0},
 331          {"-slstartp",0,&srendlinev[1],0},{"-slendp",0,&erendlinev[1],0},
 332          {"-sound",0,&Settings.sound_rate,0},
 333          {"-showfps",0,&Settings.showfps,0},
 334          #ifdef NETWORK
 335          {"-connect",&docheckie2[0],&netplayhost,0x4001},
 336          {"-server",&docheckie2[1],0,0},
 337          {"-netport",0,&Port,0},
 338          #endif
 339          {0,(void *)DriverArgs,0,0},
 340          {0,0,0,0}
 341         };
 342
 343         memset(docheckie,0,sizeof(docheckie));
 344         ret=ParseArguments(argc, argv, FCEUArgs);
 345         if(cpalette)
 346         {
 347          if(cpalette[0]=='0')
 348           if(cpalette[1]==0)
 349           {
 350            free(cpalette);
 351            cpalette=0;
 352           }
 353         }
 354         if(docheckie[0])
 355          Settings.region_force=2;
 356         FCEUI_SetGameGenie(eoptions&EO_GG);
 357         FCEUI_DisableSpriteLimitation(eoptions&EO_NO8LIM);
 358         FCEUI_SetSnapName(eoptions&EO_SNAPNAME);
 359
 360         for(x=0;x<2;x++)
 361         {
 362          if(srendlinev[x]<0 || srendlinev[x]>239) srendlinev[x]=0;
 363          if(erendlinev[x]<srendlinev[x] || erendlinev[x]>239) erendlinev[x]=239;
 364         }
 365
 366         FCEUI_SetRenderedLines(srendlinev[0],erendlinev[0],srendlinev[1],erendlinev[1]);
 367         FCEUI_SetSoundVolume(80);
 368         #ifdef NETWORK
 369         if(docheckie2[0])
 370          netplay=2;
 371         else if(docheckie2[1])
 372          netplay=1;
 373
 374         if(netplay)
 375          FCEUI_SetNetworkPlay(netplay);
 376         #endif
 377         DoDriverArgs();
 378
 379         if(fcexp)
 380         {
 381          int y;
 382          for(y=0;y<5;y++)
 383          {
 384           if(!strncmp(fccortab[y],fcexp,8))
 385           {
 386            UsrInputTypeFC=fccortabi[y];
 387            break;
 388           }
 389          }
 390          free(fcexp);
 391         }
 392         for(x=0;x<2;x++)
 393         {
 394          int y;
 395
 396          if(!inputa[x])
 397           continue;
 398
 399          for(y=0;y<5;y++)
 400          {
 401           if(!strncmp(cortab[y],inputa[x],8))
 402           {
 403            UsrInputType[x]=cortabi[y];
 404            if(y==3)
 405            {
 406             powerpadside&=~(1<<x);
 407             powerpadside|=((((inputa[x][8])-'a')&1)^1)<<x;
 408            }
 409            free(inputa[x]);
 410           }
 411          }
 412         }
 413         return ret;
 414 }
 415
 416
 417 #include "usage.h"
 418
 419 int main(int argc, char *argv[])
 420 {
 421         int last_arg_parsed, ret;
 422         /* TODO if(argc<=1)
 423         {
 424          ShowUsage(argv[0]);
 425          return 1;
 426         }*/
 427
 428         platform_init();
 429         if(!DriverInitialize())
 430         {
 431          return 1;
 432         }
 433
 434         if(!FCEUI_Initialize())
 435          return(1);
 436         GetBaseDirectory(BaseDirectory);
 437         FCEUI_SetBaseDirectory(BaseDirectory);
 438         lastLoadedGameName[0] = 0;
 439         menu_init();
 440         in_init();
 441
 442         CreateDirs();
 443         LoadConfig(NULL);
 444         last_arg_parsed=DoArgs(argc-1,&argv[1]);
 445         platform_late_init();
 446
 447         LoadLLGN();
 448         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 449         if(cpalette)
 450          LoadCPalette();
 451         if(InitSound())
 452          inited|=1;
 453
 454         if (argc > 1 && !last_arg_parsed)
 455         {
 456          strncpy(lastLoadedGameName, argv[argc-1], sizeof(lastLoadedGameName));
 457          lastLoadedGameName[sizeof(lastLoadedGameName)-1] = 0;
 458          Exit = 0;
 459         }
 460         else
 461         {
 462          Exit = 1;
 463         }
 464
 465         while (1)
 466         {
 467          if(!Exit)
 468          {
 469           if (fceugi)
 470            CloseGame();
 471           ret=LoadConfig(lastLoadedGameName);
 472           if (ret != 0)
 473           {
 474            LoadConfig(NULL);
 475           }
 476           FCEUI_SetEmuMode(Settings.accurate_mode);
 477           fceugi=FCEUI_LoadGame(lastLoadedGameName);
 478           if (fceugi)
 479           {
 480            char infostring[32];
 481            if (Settings.region_force)
 482             FCEUI_SetVidSystem(Settings.region_force - 1);
 483            ParseGI(fceugi);
 484            InitOtherInput();
 485
 486            if ((eoptions&EO_GG) && geniestage == 0) {
 487             strcpy(infostring, "gg.rom is missing, GG disabled");
 488             eoptions&=~EO_GG;
 489             FCEUI_SetGameGenie(0);
 490            } else
 491             GameInterface(GI_INFOSTRING, infostring);
 492            FCEU_DispMessage("%s", infostring);
 493           }
 494           else
 495           {
 496            switch(LoadGameLastError) {
 497             default: menu_update_msg("failed to load ROM"); break;
 498             case  2: menu_update_msg("Can't find a ROM for ips/movie"); break;
 499             case 10: menu_update_msg("FDS BIOS ROM is missing, read docs"); break;
 500             case 11: menu_update_msg("Error reading auxillary FDS file"); break;
 501            }
 502           }
 503          }
 504          if(Exit || !fceugi)
 505          {
 506           int ret;
 507           ret = menu_loop();
 508           if (ret == 1) break;          // exit emu
 509           if (ret == 2) {               // reload ROM
 510            SaveLLGN();
 511            Exit = 0;
 512            continue;
 513           }
 514          }
 515
 516          PrepareOtherInput();
 517          FCEUI_GetCurrentVidSystem(&srendline,&erendline);
 518          platform_apply_config();
 519          CleanSurface();
 520          StartSound();
 521          RefreshThrottleFPS();
 522          FCEUI_Emulate();
 523         }
 524
 525         if (fceugi)
 526          CloseGame();
 527
 528         FCEUI_Kill();
 529         DriverKill();
 530         platform_finish();
 531         return 0;
 532 }
 533
 534 static int DriverInitialize(void)
 535 {
 536    SetSignals((void *)CloseStuff);
 537
 538    if(!InitVideo()) return 0;
 539    inited|=4;
 540    return 1;
 541 }
 542
 543 static void DriverKill(void)
 544 {
 545  // SaveConfig(NULL); // done explicitly in menu now
 546  SetSignals(SIG_DFL);
 547
 548  if(cpalette) free(cpalette);
 549  cpalette=0;
 550
 551  if(inited&4)
 552   KillVideo();
 553  if(inited&1)
 554   KillSound();
 555  inited=0;
 556 }
 557
 558 void FCEUD_Update(uint8 *xbuf, int16 *Buffer, int Count)
 559 {
 560  FCEUD_UpdateInput();   // must update input before blitting because of save confirmation stuff
 561  BlitPrepare(xbuf == NULL);
 562  if(!(eoptions&EO_NOTHROTTLE))
 563  {
 564   if(Count)
 565    WriteSound(Buffer,Count);
 566   SpeedThrottle();
 567  }
 568  BlitScreen(xbuf == NULL);
 569  // make sure last frame won't get skipped, because we need it for menu bg
 570  if (Exit) FSkip=0;
 571 }
 572
 573