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.sw_filter),
  64         AC(Settings.hw_filter),
  65         ENDCFGSTRUCT
  66 };
  67
  68 void CleanSurface(void);
  69
  70 // internals
  71 extern uint8 Exit; // exit emu loop flag
  72 extern int FSkip;
  73 void CloseGame(void);
  74
  75 FCEUGI *fceugi = NULL;
  76 int ntsccol=0,ntschue=-1,ntsctint=-1;
  77 int soundvol=70;
  78 int inited=0;
  79
  80 int srendlinev[2]={8,0};
  81 int erendlinev[2]={231,239};
  82 int srendline,erendline;
  83
  84
  85 static char BaseDirectory[2048];
  86
  87 int eoptions=0;
  88
  89 static void DriverKill(void);
  90 static int DriverInitialize(void);
  91
  92 static int gametype;
  93 #include "input.c"
  94
  95 static void ParseGI(FCEUGI *gi)
  96 {
  97  gametype=gi->type;
  98
  99  InputType[0]=UsrInputType[0];
 100  InputType[1]=UsrInputType[1];
 101  InputTypeFC=UsrInputTypeFC;
 102
 103  if(gi->input[0]>=0)
 104   InputType[0]=gi->input[0];
 105  if(gi->input[1]>=0)
 106   InputType[1]=gi->input[1];
 107  if(gi->inputfc>=0)
 108   InputTypeFC=gi->inputfc;
 109 }
 110
 111 void FCEUD_PrintError(char *s)
 112 {
 113  puts(s);
 114 }
 115
 116 char *cpalette=0;
 117 void LoadCPalette(void)
 118 {
 119  char tmpp[192];
 120  FILE *fp;
 121
 122  if(!(fp=fopen(cpalette,"rb")))
 123  {
 124   printf(" Error loading custom palette from file: %s\n",cpalette);
 125   free(cpalette);
 126   cpalette=0;
 127   return;
 128  }
 129  fread(tmpp,1,192,fp);
 130  FCEUI_SetPaletteArray((uint8 *)tmpp);
 131  fclose(fp);
 132 }
 133
 134 static CFGSTRUCT fceuconfig[]={
 135         AC(soundvol),
 136         ACS(cpalette),
 137         AC(ntsctint),
 138         AC(ntschue),
 139         AC(ntsccol),
 140         AC(UsrInputTypeFC),
 141         ACA(UsrInputType),
 142         AC(powerpadside),
 143         AC(powerpadsc),
 144         AC(eoptions),
 145         ACA(srendlinev),
 146         ACA(erendlinev),
 147         ADDCFGSTRUCT(DriverConfig),
 148         ENDCFGSTRUCT
 149 };
 150
 151 static const char *skip_path(const char *path)
 152 {
 153         const char *p;
 154         if (path == NULL) return NULL;
 155         for (p = path+strlen(path)-1; p > path && *p != '/'; p--);
 156         if (*p == '/') p++;
 157         return p;
 158 }
 159
 160 int SaveConfig(const char *llgn_path)
 161 {
 162         const char *name = skip_path(llgn_path);
 163         char tdir[2048];
 164         FILE *f;
 165         int ret;
 166
 167         if (name)
 168              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 169         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 170         printf("saving cfg to %s ... ", tdir); fflush(stdout);
 171         FCEUI_GetNTSCTH(&ntsctint, &ntschue);
 172         ret=SaveFCEUConfig(tdir,fceuconfig);
 173         printf(ret == 0 ? "done\n" : "failed\n");
 174
 175         // keys
 176         if (name)
 177              sprintf(tdir,"%s"PSS"cfg"PSS"%s_keys.cfg",BaseDirectory,name);
 178         else sprintf(tdir,"%s"PSS"fceu_keys.cfg",BaseDirectory);
 179         f=fopen(tdir, "w");
 180         if (f!=NULL) {
 181          config_write_keys(f);
 182          fclose(f);
 183         }
 184
 185         return ret;
 186 }
 187
 188 static int LoadConfig(const char *llgn_path)
 189 {
 190         const char *name = skip_path(llgn_path);
 191         char tdir[2048];
 192         FILE *f;
 193         int ret, l;
 194
 195         if (name)
 196              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 197         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 198         printf("loading cfg from %s ... ", tdir); fflush(stdout);
 199         FCEUI_GetNTSCTH(&ntsctint, &ntschue); /* Get default settings for if no config file exists. */
 200         ret=LoadFCEUConfig(tdir,fceuconfig);
 201         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 202         printf(ret == 0 ? "done\n" : "failed\n");
 203
 204         // keys
 205         if (name)
 206              sprintf(tdir,"%s"PSS"cfg"PSS"%s_keys.cfg",BaseDirectory,name);
 207         else sprintf(tdir,"%s"PSS"fceu_keys.cfg",BaseDirectory);
 208         f=fopen(tdir, "r");
 209         if (f!=NULL) {
 210          l=fread(tdir,1,sizeof(tdir)-1,f);
 211          tdir[l]=0;
 212          config_read_keys(tdir);
 213          fclose(f);
 214         }
 215
 216         return ret;
 217 }
 218
 219 static void LoadLLGN(void)
 220 {
 221  char tdir[2048];
 222  FILE *f;
 223  int len;
 224  sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 225  f=fopen(tdir, "r");
 226  if(f)
 227  {
 228   len = fread(lastLoadedGameName, 1, sizeof(lastLoadedGameName)-1, f);
 229   lastLoadedGameName[len] = 0;
 230   fclose(f);
 231  }
 232 }
 233
 234 static void SaveLLGN(void)
 235 {
 236  // save last loaded game name
 237  if (lastLoadedGameName[0] && !(eoptions&EO_NOAUTOWRITE))
 238  {
 239   char tdir[2048];
 240   FILE *f;
 241   sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 242   f=fopen(tdir, "w");
 243   if(f)
 244   {
 245    fwrite(lastLoadedGameName, 1, strlen(lastLoadedGameName), f);
 246    fclose(f);
 247    sync();
 248   }
 249  }
 250 }
 251
 252
 253 static void CreateDirs(void)
 254 {
 255  char *subs[]={"fcs","snaps","gameinfo","sav","cheats","cfg","pal"};
 256  char tdir[2048];
 257  int x;
 258
 259  mkdir(BaseDirectory,S_IRWXU);
 260  for(x=0;x<sizeof(subs)/sizeof(subs[0]);x++)
 261  {
 262   sprintf(tdir,"%s"PSS"%s",BaseDirectory,subs[x]);
 263   mkdir(tdir,S_IRWXU);
 264  }
 265 }
 266
 267 static void SetSignals(void (*t)(int))
 268 {
 269   int sigs[11]={SIGINT,SIGTERM,SIGHUP,SIGPIPE,SIGSEGV,SIGFPE,SIGKILL,SIGALRM,SIGABRT,SIGUSR1,SIGUSR2};
 270   int x;
 271   for(x=0;x<11;x++)
 272    signal(sigs[x],t);
 273 }
 274
 275 static void CloseStuff(int signum)
 276 {
 277         DriverKill();
 278         printf("\nSignal %d has been caught and dealt with...\n",signum);
 279         switch(signum)
 280         {
 281          case SIGINT:printf("How DARE you interrupt me!\n");break;
 282          case SIGTERM:printf("MUST TERMINATE ALL HUMANS\n");break;
 283          case SIGHUP:printf("Reach out and hang-up on someone.\n");break;
 284          case SIGPIPE:printf("The pipe has broken!  Better watch out for floods...\n");break;
 285          case SIGSEGV:printf("Iyeeeeeeeee!!!  A segmentation fault has occurred.  Have a fluffy day.\n");break;
 286          #if(SIGBUS!=SIGSEGV)
 287          case SIGBUS:printf("I told you to be nice to the driver.\n");break;
 288          #endif
 289          case SIGFPE:printf("Those darn floating points.  Ne'er know when they'll bite!\n");break;
 290          case SIGALRM:printf("Don't throw your clock at the meowing cats!\n");break;
 291          case SIGABRT:printf("Abort, Retry, Ignore, Fail?\n");break;
 292          case SIGUSR1:
 293          case SIGUSR2:printf("Killing your processes is not nice.\n");break;
 294         }
 295         exit(1);
 296 }
 297
 298 static int DoArgs(int argc, char *argv[])
 299 {
 300         static char *cortab[5]={"none","gamepad","zapper","powerpad","arkanoid"};
 301         static int cortabi[5]={SI_NONE,SI_GAMEPAD,
 302                                SI_ZAPPER,SI_POWERPADA,SI_ARKANOID};
 303         static char *fccortab[5]={"none","arkanoid","shadow","4player","fkb"};
 304         static int fccortabi[5]={SIFC_NONE,SIFC_ARKANOID,SIFC_SHADOW,
 305                                  SIFC_4PLAYER,SIFC_FKB};
 306
 307         int x, ret;
 308         static char *inputa[2]={0,0};
 309         static char *fcexp=0;
 310         static int docheckie[4];
 311 #ifdef NETWORK
 312         static int docheckie2[2]={0,0};
 313 #endif
 314
 315         static ARGPSTRUCT FCEUArgs[]={
 316          {"-soundvol",0,&soundvol,0},
 317          {"-cpalette",0,&cpalette,0x4001},
 318
 319          {"-ntsccol",0,&ntsccol,0},
 320          {"-pal",&docheckie[0],0,0},
 321          {"-input1",0,&inputa[0],0x4001},{"-input2",0,&inputa[1],0x4001},
 322          {"-fcexp",0,&fcexp,0x4001},
 323
 324          {"-gg",0,&eoptions,0x8000|EO_GG},
 325          {"-no8lim",0,&eoptions,0x8000|EO_NO8LIM},
 326          {"-snapname",0,&eoptions,0x8000|EO_SNAPNAME},
 327          {"-nofs",0,&eoptions,0x8000|EO_NOFOURSCORE},
 328          {"-clipsides",0,&eoptions,0x8000|EO_CLIPSIDES},
 329          {"-nothrottle",0,&eoptions,0x8000|EO_NOTHROTTLE},
 330          {"-noautowrite",0,&eoptions,0x8000|EO_NOAUTOWRITE},
 331          {"-slstart",0,&srendlinev[0],0},{"-slend",0,&erendlinev[0],0},
 332          {"-slstartp",0,&srendlinev[1],0},{"-slendp",0,&erendlinev[1],0},
 333          {"-sound",0,&Settings.sound_rate,0},
 334          {"-showfps",0,&Settings.showfps,0},
 335          #ifdef NETWORK
 336          {"-connect",&docheckie2[0],&netplayhost,0x4001},
 337          {"-server",&docheckie2[1],0,0},
 338          {"-netport",0,&Port,0},
 339          #endif
 340          {0,(void *)DriverArgs,0,0},
 341          {0,0,0,0}
 342         };
 343
 344         memset(docheckie,0,sizeof(docheckie));
 345         ret=ParseArguments(argc, argv, FCEUArgs);
 346         if(cpalette)
 347         {
 348          if(cpalette[0]=='0')
 349           if(cpalette[1]==0)
 350           {
 351            free(cpalette);
 352            cpalette=0;
 353           }
 354         }
 355         if(docheckie[0])
 356          Settings.region_force=2;
 357         FCEUI_SetGameGenie(eoptions&EO_GG);
 358         FCEUI_DisableSpriteLimitation(eoptions&EO_NO8LIM);
 359         FCEUI_SetSnapName(eoptions&EO_SNAPNAME);
 360
 361         for(x=0;x<2;x++)
 362         {
 363          if(srendlinev[x]<0 || srendlinev[x]>239) srendlinev[x]=0;
 364          if(erendlinev[x]<srendlinev[x] || erendlinev[x]>239) erendlinev[x]=239;
 365         }
 366
 367         FCEUI_SetRenderedLines(srendlinev[0],erendlinev[0],srendlinev[1],erendlinev[1]);
 368         FCEUI_SetSoundVolume(80);
 369         #ifdef NETWORK
 370         if(docheckie2[0])
 371          netplay=2;
 372         else if(docheckie2[1])
 373          netplay=1;
 374
 375         if(netplay)
 376          FCEUI_SetNetworkPlay(netplay);
 377         #endif
 378         DoDriverArgs();
 379
 380         if(fcexp)
 381         {
 382          int y;
 383          for(y=0;y<5;y++)
 384          {
 385           if(!strncmp(fccortab[y],fcexp,8))
 386           {
 387            UsrInputTypeFC=fccortabi[y];
 388            break;
 389           }
 390          }
 391          free(fcexp);
 392         }
 393         for(x=0;x<2;x++)
 394         {
 395          int y;
 396
 397          if(!inputa[x])
 398           continue;
 399
 400          for(y=0;y<5;y++)
 401          {
 402           if(!strncmp(cortab[y],inputa[x],8))
 403           {
 404            UsrInputType[x]=cortabi[y];
 405            if(y==3)
 406            {
 407             powerpadside&=~(1<<x);
 408             powerpadside|=((((inputa[x][8])-'a')&1)^1)<<x;
 409            }
 410            free(inputa[x]);
 411           }
 412          }
 413         }
 414         return ret;
 415 }
 416
 417
 418 #include "usage.h"
 419
 420 int main(int argc, char *argv[])
 421 {
 422         int last_arg_parsed, ret;
 423         /* TODO if(argc<=1)
 424         {
 425          ShowUsage(argv[0]);
 426          return 1;
 427         }*/
 428
 429         platform_init();
 430         if(!DriverInitialize())
 431         {
 432          return 1;
 433         }
 434
 435         if(!FCEUI_Initialize())
 436          return(1);
 437         GetBaseDirectory(BaseDirectory);
 438         FCEUI_SetBaseDirectory(BaseDirectory);
 439         lastLoadedGameName[0] = 0;
 440         menu_init();
 441         in_init();
 442
 443         CreateDirs();
 444         LoadConfig(NULL);
 445         last_arg_parsed=DoArgs(argc-1,&argv[1]);
 446         platform_late_init();
 447
 448         LoadLLGN();
 449         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 450         if(cpalette)
 451          LoadCPalette();
 452         if(InitSound())
 453          inited|=1;
 454
 455         if (argc > 1 && !last_arg_parsed)
 456         {
 457          strncpy(lastLoadedGameName, argv[argc-1], sizeof(lastLoadedGameName));
 458          lastLoadedGameName[sizeof(lastLoadedGameName)-1] = 0;
 459          Exit = 0;
 460         }
 461         else
 462         {
 463          Exit = 1;
 464         }
 465
 466         while (1)
 467         {
 468          if(!Exit)
 469          {
 470           if (fceugi)
 471            CloseGame();
 472           ret=LoadConfig(lastLoadedGameName);
 473           if (ret != 0)
 474           {
 475            LoadConfig(NULL);
 476           }
 477           FCEUI_SetEmuMode(Settings.accurate_mode);
 478           fceugi=FCEUI_LoadGame(lastLoadedGameName);
 479           if (fceugi)
 480           {
 481            char infostring[32];
 482            if (Settings.region_force)
 483             FCEUI_SetVidSystem(Settings.region_force - 1);
 484            ParseGI(fceugi);
 485            InitOtherInput();
 486
 487            if ((eoptions&EO_GG) && geniestage == 0) {
 488             strcpy(infostring, "gg.rom is missing, GG disabled");
 489             eoptions&=~EO_GG;
 490             FCEUI_SetGameGenie(0);
 491            } else
 492             GameInterface(GI_INFOSTRING, infostring);
 493            FCEU_DispMessage("%s", infostring);
 494           }
 495           else
 496           {
 497            switch(LoadGameLastError) {
 498             default: menu_update_msg("failed to load ROM"); break;
 499             case  2: menu_update_msg("Can't find a ROM for ips/movie"); break;
 500             case 10: menu_update_msg("FDS BIOS ROM is missing, read docs"); break;
 501             case 11: menu_update_msg("Error reading auxillary FDS file"); break;
 502            }
 503           }
 504          }
 505          if(Exit || !fceugi)
 506          {
 507           int ret;
 508           ret = menu_loop();
 509           if (ret == 1) break;          // exit emu
 510           if (ret == 2) {               // reload ROM
 511            SaveLLGN();
 512            Exit = 0;
 513            continue;
 514           }
 515          }
 516
 517          PrepareOtherInput();
 518          FCEUI_GetCurrentVidSystem(&srendline,&erendline);
 519          platform_apply_config();
 520          CleanSurface();
 521          StartSound();
 522          RefreshThrottleFPS();
 523          FCEUI_Emulate();
 524         }
 525
 526         if (fceugi)
 527          CloseGame();
 528
 529         FCEUI_Kill();
 530         DriverKill();
 531         platform_finish();
 532         return 0;
 533 }
 534
 535 static int DriverInitialize(void)
 536 {
 537    SetSignals((void *)CloseStuff);
 538
 539    if(!InitVideo()) return 0;
 540    inited|=4;
 541    return 1;
 542 }
 543
 544 static void DriverKill(void)
 545 {
 546  // SaveConfig(NULL); // done explicitly in menu now
 547  SetSignals(SIG_DFL);
 548
 549  if(cpalette) free(cpalette);
 550  cpalette=0;
 551
 552  if(inited&4)
 553   KillVideo();
 554  if(inited&1)
 555   KillSound();
 556  inited=0;
 557 }
 558
 559 void FCEUD_Update(uint8 *xbuf, int16 *Buffer, int Count)
 560 {
 561  FCEUD_UpdateInput();   // must update input before blitting because of save confirmation stuff
 562  BlitPrepare(xbuf == NULL);
 563  if(!(eoptions&EO_NOTHROTTLE))
 564  {
 565   if(Count)
 566    WriteSound(Buffer,Count);
 567   SpeedThrottle();
 568  }
 569  BlitScreen(xbuf == NULL);
 570  // make sure last frame won't get skipped, because we need it for menu bg
 571  if (Exit) FSkip=0;
 572 }
 573
 574