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 void LoadKeys(const char *llgn_path)
 189 {
 190         const char *name = skip_path(llgn_path);
 191         char tdir[2048];
 192         FILE *f;
 193         int l;
 194
 195         if (name)
 196              sprintf(tdir,"%s"PSS"cfg"PSS"%s_keys.cfg",BaseDirectory,name);
 197         else sprintf(tdir,"%s"PSS"fceu_keys.cfg",BaseDirectory);
 198         f=fopen(tdir, "r");
 199         if (f!=NULL) {
 200          l=fread(tdir,1,sizeof(tdir)-1,f);
 201          tdir[l]=0;
 202          config_read_keys(tdir);
 203          fclose(f);
 204         }
 205 }
 206
 207 static int LoadConfig(const char *llgn_path)
 208 {
 209         const char *name = skip_path(llgn_path);
 210         char tdir[2048];
 211         int ret;
 212
 213         if (name)
 214              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 215         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 216         printf("loading cfg from %s ... ", tdir); fflush(stdout);
 217         FCEUI_GetNTSCTH(&ntsctint, &ntschue); /* Get default settings for if no config file exists. */
 218         ret=LoadFCEUConfig(tdir,fceuconfig);
 219         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 220         printf(ret == 0 ? "done\n" : "failed\n");
 221
 222         LoadKeys(llgn_path);
 223
 224         return ret;
 225 }
 226
 227 static void LoadLLGN(void)
 228 {
 229  char tdir[2048];
 230  FILE *f;
 231  int len;
 232  sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 233  f=fopen(tdir, "r");
 234  if(f)
 235  {
 236   len = fread(lastLoadedGameName, 1, sizeof(lastLoadedGameName)-1, f);
 237   lastLoadedGameName[len] = 0;
 238   fclose(f);
 239  }
 240  else
 241  {
 242   platform_get_def_rompath(lastLoadedGameName, sizeof(lastLoadedGameName));
 243  }
 244 }
 245
 246 static void SaveLLGN(void)
 247 {
 248  // save last loaded game name
 249  if (lastLoadedGameName[0] && !(eoptions&EO_NOAUTOWRITE))
 250  {
 251   char tdir[2048];
 252   FILE *f;
 253   sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 254   f=fopen(tdir, "w");
 255   if(f)
 256   {
 257    fwrite(lastLoadedGameName, 1, strlen(lastLoadedGameName), f);
 258    fclose(f);
 259    sync();
 260   }
 261  }
 262 }
 263
 264
 265 static void CreateDirs(void)
 266 {
 267  char *subs[]={"fcs","snaps","gameinfo","sav","cheats","cfg","pal"};
 268  char tdir[2048];
 269  int x;
 270
 271  mkdir(BaseDirectory,S_IRWXU);
 272  for(x=0;x<sizeof(subs)/sizeof(subs[0]);x++)
 273  {
 274   sprintf(tdir,"%s"PSS"%s",BaseDirectory,subs[x]);
 275   mkdir(tdir,S_IRWXU);
 276  }
 277 }
 278
 279 static void SetSignals(void (*t)(int))
 280 {
 281   int sigs[11]={SIGINT,SIGTERM,SIGHUP,SIGPIPE,SIGSEGV,SIGFPE,SIGKILL,SIGALRM,SIGABRT,SIGUSR1,SIGUSR2};
 282   int x;
 283   for(x=0;x<11;x++)
 284    signal(sigs[x],t);
 285 }
 286
 287 static void CloseStuff(int signum)
 288 {
 289         DriverKill();
 290         printf("\nSignal %d has been caught and dealt with...\n",signum);
 291         switch(signum)
 292         {
 293          case SIGINT:printf("How DARE you interrupt me!\n");break;
 294          case SIGTERM:printf("MUST TERMINATE ALL HUMANS\n");break;
 295          case SIGHUP:printf("Reach out and hang-up on someone.\n");break;
 296          case SIGPIPE:printf("The pipe has broken!  Better watch out for floods...\n");break;
 297          case SIGSEGV:printf("Iyeeeeeeeee!!!  A segmentation fault has occurred.  Have a fluffy day.\n");break;
 298          #if(SIGBUS!=SIGSEGV)
 299          case SIGBUS:printf("I told you to be nice to the driver.\n");break;
 300          #endif
 301          case SIGFPE:printf("Those darn floating points.  Ne'er know when they'll bite!\n");break;
 302          case SIGALRM:printf("Don't throw your clock at the meowing cats!\n");break;
 303          case SIGABRT:printf("Abort, Retry, Ignore, Fail?\n");break;
 304          case SIGUSR1:
 305          case SIGUSR2:printf("Killing your processes is not nice.\n");break;
 306         }
 307         exit(1);
 308 }
 309
 310 static int DoArgs(int argc, char *argv[])
 311 {
 312         static char *cortab[5]={"none","gamepad","zapper","powerpad","arkanoid"};
 313         static int cortabi[5]={SI_NONE,SI_GAMEPAD,
 314                                SI_ZAPPER,SI_POWERPADA,SI_ARKANOID};
 315         static char *fccortab[5]={"none","arkanoid","shadow","4player","fkb"};
 316         static int fccortabi[5]={SIFC_NONE,SIFC_ARKANOID,SIFC_SHADOW,
 317                                  SIFC_4PLAYER,SIFC_FKB};
 318
 319         int x, ret;
 320         static char *inputa[2]={0,0};
 321         static char *fcexp=0;
 322         static int docheckie[4];
 323 #ifdef NETWORK
 324         static int docheckie2[2]={0,0};
 325 #endif
 326
 327         static ARGPSTRUCT FCEUArgs[]={
 328          {"-soundvol",0,&soundvol,0},
 329          {"-cpalette",0,&cpalette,0x4001},
 330
 331          {"-ntsccol",0,&ntsccol,0},
 332          {"-pal",&docheckie[0],0,0},
 333          {"-input1",0,&inputa[0],0x4001},{"-input2",0,&inputa[1],0x4001},
 334          {"-fcexp",0,&fcexp,0x4001},
 335
 336          {"-gg",0,&eoptions,0x8000|EO_GG},
 337          {"-no8lim",0,&eoptions,0x8000|EO_NO8LIM},
 338          {"-snapname",0,&eoptions,0x8000|EO_SNAPNAME},
 339          {"-nofs",0,&eoptions,0x8000|EO_NOFOURSCORE},
 340          {"-clipsides",0,&eoptions,0x8000|EO_CLIPSIDES},
 341          {"-nothrottle",0,&eoptions,0x8000|EO_NOTHROTTLE},
 342          {"-noautowrite",0,&eoptions,0x8000|EO_NOAUTOWRITE},
 343          {"-slstart",0,&srendlinev[0],0},{"-slend",0,&erendlinev[0],0},
 344          {"-slstartp",0,&srendlinev[1],0},{"-slendp",0,&erendlinev[1],0},
 345          {"-sound",0,&Settings.sound_rate,0},
 346          {"-showfps",0,&Settings.showfps,0},
 347          #ifdef NETWORK
 348          {"-connect",&docheckie2[0],&netplayhost,0x4001},
 349          {"-server",&docheckie2[1],0,0},
 350          {"-netport",0,&Port,0},
 351          #endif
 352          {0,(void *)DriverArgs,0,0},
 353          {0,0,0,0}
 354         };
 355
 356         memset(docheckie,0,sizeof(docheckie));
 357         ret=ParseArguments(argc, argv, FCEUArgs);
 358         if(cpalette)
 359         {
 360          if(cpalette[0]=='0')
 361           if(cpalette[1]==0)
 362           {
 363            free(cpalette);
 364            cpalette=0;
 365           }
 366         }
 367         if(docheckie[0])
 368          Settings.region_force=2;
 369         FCEUI_SetGameGenie(eoptions&EO_GG);
 370         FCEUI_DisableSpriteLimitation(eoptions&EO_NO8LIM);
 371         FCEUI_SetSnapName(eoptions&EO_SNAPNAME);
 372
 373         for(x=0;x<2;x++)
 374         {
 375          if(srendlinev[x]<0 || srendlinev[x]>239) srendlinev[x]=0;
 376          if(erendlinev[x]<srendlinev[x] || erendlinev[x]>239) erendlinev[x]=239;
 377         }
 378
 379         FCEUI_SetRenderedLines(srendlinev[0],erendlinev[0],srendlinev[1],erendlinev[1]);
 380         FCEUI_SetSoundVolume(80);
 381         #ifdef NETWORK
 382         if(docheckie2[0])
 383          netplay=2;
 384         else if(docheckie2[1])
 385          netplay=1;
 386
 387         if(netplay)
 388          FCEUI_SetNetworkPlay(netplay);
 389         #endif
 390         DoDriverArgs();
 391
 392         if(fcexp)
 393         {
 394          int y;
 395          for(y=0;y<5;y++)
 396          {
 397           if(!strncmp(fccortab[y],fcexp,8))
 398           {
 399            UsrInputTypeFC=fccortabi[y];
 400            break;
 401           }
 402          }
 403          free(fcexp);
 404         }
 405         for(x=0;x<2;x++)
 406         {
 407          int y;
 408
 409          if(!inputa[x])
 410           continue;
 411
 412          for(y=0;y<5;y++)
 413          {
 414           if(!strncmp(cortab[y],inputa[x],8))
 415           {
 416            UsrInputType[x]=cortabi[y];
 417            if(y==3)
 418            {
 419             powerpadside&=~(1<<x);
 420             powerpadside|=((((inputa[x][8])-'a')&1)^1)<<x;
 421            }
 422            free(inputa[x]);
 423           }
 424          }
 425         }
 426         return ret;
 427 }
 428
 429
 430 #include "usage.h"
 431
 432 int main(int argc, char *argv[])
 433 {
 434         int last_arg_parsed, ret;
 435         /* TODO if(argc<=1)
 436         {
 437          ShowUsage(argv[0]);
 438          return 1;
 439         }*/
 440
 441         platform_init();
 442         if(!DriverInitialize())
 443         {
 444          return 1;
 445         }
 446
 447         if(!FCEUI_Initialize())
 448          return(1);
 449         GetBaseDirectory(BaseDirectory);
 450         FCEUI_SetBaseDirectory(BaseDirectory);
 451         lastLoadedGameName[0] = 0;
 452         menu_init();
 453         in_init();
 454
 455         CreateDirs();
 456         LoadConfig(NULL);
 457         last_arg_parsed=DoArgs(argc-1,&argv[1]);
 458         platform_late_init();
 459         LoadKeys(NULL);
 460
 461         LoadLLGN();
 462         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 463         if(cpalette)
 464          LoadCPalette();
 465         if(InitSound())
 466          inited|=1;
 467
 468         if (argc > 1 && !last_arg_parsed)
 469         {
 470          strncpy(lastLoadedGameName, argv[argc-1], sizeof(lastLoadedGameName));
 471          lastLoadedGameName[sizeof(lastLoadedGameName)-1] = 0;
 472          Exit = 0;
 473         }
 474         else
 475         {
 476          Exit = 1;
 477         }
 478
 479         while (1)
 480         {
 481          if(!Exit)
 482          {
 483           if (fceugi)
 484            CloseGame();
 485           ret=LoadConfig(lastLoadedGameName);
 486           if (ret != 0)
 487           {
 488            LoadConfig(NULL);
 489           }
 490           FCEUI_SetEmuMode(Settings.accurate_mode);
 491           fceugi=FCEUI_LoadGame(lastLoadedGameName);
 492           if (fceugi)
 493           {
 494            char infostring[32];
 495            if (Settings.region_force)
 496             FCEUI_SetVidSystem(Settings.region_force - 1);
 497            ParseGI(fceugi);
 498            InitOtherInput();
 499
 500            if ((eoptions&EO_GG) && geniestage == 0) {
 501             strcpy(infostring, "gg.rom is missing, GG disabled");
 502             eoptions&=~EO_GG;
 503             FCEUI_SetGameGenie(0);
 504            } else
 505             GameInterface(GI_INFOSTRING, infostring);
 506            FCEU_DispMessage("%s", infostring);
 507           }
 508           else
 509           {
 510            switch(LoadGameLastError) {
 511             default: menu_update_msg("failed to load ROM"); break;
 512             case  2: menu_update_msg("Can't find a ROM for ips/movie"); break;
 513             case 10: menu_update_msg("FDS BIOS ROM is missing, read docs"); break;
 514             case 11: menu_update_msg("Error reading auxillary FDS file"); break;
 515            }
 516           }
 517          }
 518          if(Exit || !fceugi)
 519          {
 520           int ret;
 521           ret = menu_loop();
 522           if (ret == 1) break;          // exit emu
 523           if (ret == 2) {               // reload ROM
 524            SaveLLGN();
 525            Exit = 0;
 526            continue;
 527           }
 528          }
 529
 530          PrepareOtherInput();
 531          FCEUI_GetCurrentVidSystem(&srendline,&erendline);
 532          platform_apply_config();
 533          CleanSurface();
 534          StartSound();
 535          RefreshThrottleFPS();
 536          FCEUI_Emulate();
 537         }
 538
 539         if (fceugi)
 540          CloseGame();
 541
 542         FCEUI_Kill();
 543         DriverKill();
 544         platform_finish();
 545         return 0;
 546 }
 547
 548 static int DriverInitialize(void)
 549 {
 550    SetSignals((void *)CloseStuff);
 551
 552    if(!InitVideo()) return 0;
 553    inited|=4;
 554    return 1;
 555 }
 556
 557 static void DriverKill(void)
 558 {
 559  // SaveConfig(NULL); // done explicitly in menu now
 560  SetSignals(SIG_DFL);
 561
 562  if(cpalette) free(cpalette);
 563  cpalette=0;
 564
 565  if(inited&4)
 566   KillVideo();
 567  if(inited&1)
 568   KillSound();
 569  inited=0;
 570 }
 571
 572 void FCEUD_Update(uint8 *xbuf, int16 *Buffer, int Count)
 573 {
 574  FCEUD_UpdateInput();   // must update input before blitting because of save confirmation stuff
 575  BlitPrepare(xbuf == NULL);
 576  if(!(eoptions&EO_NOTHROTTLE))
 577  {
 578   if(Count)
 579    WriteSound(Buffer,Count);
 580   SpeedThrottle();
 581  }
 582  BlitScreen(xbuf == NULL);
 583  // make sure last frame won't get skipped, because we need it for menu bg
 584  if (Exit) FSkip=0;
 585 }
 586
 587