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