drivers/gp2x/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 "minimal.h"
  32 #include "throttle.h"
  33 #include "menu.h"
  34 #include "gp2x.h"
  35
  36 #include "../common/config.h"
  37 #include "../common/args.h"
  38 #include "../common/unixdsp.h"
  39 #include "../common/cheat.h"
  40
  41 #include "../../fce.h"
  42
  43 #include "dface.h"
  44
  45
  46 void CleanSurface(void);
  47
  48 // internals
  49 extern char lastLoadedGameName[2048];
  50 extern uint8 Exit; // exit emu loop flag
  51 void CloseGame(void);
  52
  53 FCEUGI *fceugi = NULL;
  54 int ntsccol=0,ntschue=-1,ntsctint=-1;
  55 int soundvol=70;
  56 int inited=0;
  57
  58 int srendlinev[2]={8,0};
  59 int erendlinev[2]={231,239};
  60 int srendline,erendline;
  61
  62
  63 static char BaseDirectory[2048];
  64
  65 int eoptions=0;
  66
  67 static void DriverKill(void);
  68 static int DriverInitialize(void);
  69
  70 static int gametype;
  71 #include "input.c"
  72
  73 static void ParseGI(FCEUGI *gi)
  74 {
  75  gametype=gi->type;
  76
  77  InputType[0]=UsrInputType[0];
  78  InputType[1]=UsrInputType[1];
  79  InputTypeFC=UsrInputTypeFC;
  80
  81  if(gi->input[0]>=0)
  82   InputType[0]=gi->input[0];
  83  if(gi->input[1]>=0)
  84   InputType[1]=gi->input[1];
  85  if(gi->inputfc>=0)
  86   InputTypeFC=gi->inputfc;
  87 }
  88
  89 void FCEUD_PrintError(char *s)
  90 {
  91  puts(s);
  92 }
  93
  94 char *cpalette=0;
  95 void LoadCPalette(void)
  96 {
  97  char tmpp[192];
  98  FILE *fp;
  99
 100  if(!(fp=fopen(cpalette,"rb")))
 101  {
 102   printf(" Error loading custom palette from file: %s\n",cpalette);
 103   free(cpalette);
 104   cpalette=0;
 105   return;
 106  }
 107  fread(tmpp,1,192,fp);
 108  FCEUI_SetPaletteArray((uint8 *)tmpp);
 109  fclose(fp);
 110 }
 111
 112 static CFGSTRUCT fceuconfig[]={
 113         AC(soundvol),
 114         ACS(cpalette),
 115         AC(ntsctint),
 116         AC(ntschue),
 117         AC(ntsccol),
 118         AC(UsrInputTypeFC),
 119         ACA(UsrInputType),
 120         AC(powerpadside),
 121         AC(powerpadsc),
 122         AC(eoptions),
 123         ACA(srendlinev),
 124         ACA(erendlinev),
 125         ADDCFGSTRUCT(DriverConfig),
 126         ENDCFGSTRUCT
 127 };
 128
 129 void SaveConfig(const char *name)
 130 {
 131         char tdir[2048];
 132         if (name)
 133              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 134         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 135         FCEUI_GetNTSCTH(&ntsctint, &ntschue);
 136         SaveFCEUConfig(tdir,fceuconfig);
 137 }
 138
 139 static void LoadConfig(const char *name)
 140 {
 141         char tdir[2048];
 142         if (name)
 143              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 144         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 145         FCEUI_GetNTSCTH(&ntsctint, &ntschue); /* Get default settings for if no config file exists. */
 146         LoadFCEUConfig(tdir,fceuconfig);
 147         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 148 }
 149
 150 static void LoadLLGN(void)
 151 {
 152  char tdir[2048];
 153  FILE *f;
 154  int len;
 155  sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 156  f=fopen(tdir, "r");
 157  if(f)
 158  {
 159   len = fread(lastLoadedGameName, 1, sizeof(lastLoadedGameName)-1, f);
 160   lastLoadedGameName[len] = 0;
 161   fclose(f);
 162  }
 163 }
 164
 165 static void SaveLLGN(void)
 166 {
 167  // save last loaded game name
 168  if (lastLoadedGameName[0])
 169  {
 170   char tdir[2048];
 171   FILE *f;
 172   sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 173   f=fopen(tdir, "w");
 174   if(f)
 175   {
 176    fwrite(lastLoadedGameName, 1, strlen(lastLoadedGameName), f);
 177    fclose(f);
 178    sync();
 179   }
 180  }
 181 }
 182
 183
 184 static void CreateDirs(void)
 185 {
 186  char *subs[]={"fcs","snaps","gameinfo","sav","cheats","cfg","pal"};
 187  char tdir[2048];
 188  int x;
 189
 190  mkdir(BaseDirectory,S_IRWXU);
 191  for(x=0;x<sizeof(subs)/sizeof(subs[0]);x++)
 192  {
 193   sprintf(tdir,"%s"PSS"%s",BaseDirectory,subs[x]);
 194   mkdir(tdir,S_IRWXU);
 195  }
 196 }
 197
 198 static void SetSignals(void (*t)(int))
 199 {
 200   int sigs[11]={SIGINT,SIGTERM,SIGHUP,SIGPIPE,SIGSEGV,SIGFPE,SIGKILL,SIGALRM,SIGABRT,SIGUSR1,SIGUSR2};
 201   int x;
 202   for(x=0;x<11;x++)
 203    signal(sigs[x],t);
 204 }
 205
 206 static void CloseStuff(int signum)
 207 {
 208         DriverKill();
 209         printf("\nSignal %d has been caught and dealt with...\n",signum);
 210         switch(signum)
 211         {
 212          case SIGINT:printf("How DARE you interrupt me!\n");break;
 213          case SIGTERM:printf("MUST TERMINATE ALL HUMANS\n");break;
 214          case SIGHUP:printf("Reach out and hang-up on someone.\n");break;
 215          case SIGPIPE:printf("The pipe has broken!  Better watch out for floods...\n");break;
 216          case SIGSEGV:printf("Iyeeeeeeeee!!!  A segmentation fault has occurred.  Have a fluffy day.\n");break;
 217          #if(SIGBUS!=SIGSEGV)
 218          case SIGBUS:printf("I told you to be nice to the driver.\n");break;
 219          #endif
 220          case SIGFPE:printf("Those darn floating points.  Ne'er know when they'll bite!\n");break;
 221          case SIGALRM:printf("Don't throw your clock at the meowing cats!\n");break;
 222          case SIGABRT:printf("Abort, Retry, Ignore, Fail?\n");break;
 223          case SIGUSR1:
 224          case SIGUSR2:printf("Killing your processes is not nice.\n");break;
 225         }
 226         exit(1);
 227 }
 228
 229 static int DoArgs(int argc, char *argv[])
 230 {
 231         static char *cortab[5]={"none","gamepad","zapper","powerpad","arkanoid"};
 232         static int cortabi[5]={SI_NONE,SI_GAMEPAD,
 233                                SI_ZAPPER,SI_POWERPADA,SI_ARKANOID};
 234         static char *fccortab[5]={"none","arkanoid","shadow","4player","fkb"};
 235         static int fccortabi[5]={SIFC_NONE,SIFC_ARKANOID,SIFC_SHADOW,
 236                                  SIFC_4PLAYER,SIFC_FKB};
 237
 238         int x, ret;
 239         static char *inputa[2]={0,0};
 240         static char *fcexp=0;
 241         static int docheckie[4];
 242
 243         static ARGPSTRUCT FCEUArgs[]={
 244          {"-soundvol",0,&soundvol,0},
 245          {"-cpalette",0,&cpalette,0x4001},
 246
 247          {"-ntsccol",0,&ntsccol,0},
 248          {"-pal",&docheckie[0],0,0},
 249          {"-input1",0,&inputa[0],0x4001},{"-input2",0,&inputa[1],0x4001},
 250          {"-fcexp",0,&fcexp,0x4001},
 251
 252          {"-gg",&docheckie[1],0,0},
 253          {"-no8lim",0,&eoptions,0x8000|EO_NO8LIM},
 254          {"-snapname",0,&eoptions,0x8000|EO_SNAPNAME},
 255          {"-nofs",0,&eoptions,0x8000|EO_NOFOURSCORE},
 256          {"-clipsides",0,&eoptions,0x8000|EO_CLIPSIDES},
 257          {"-nothrottle",0,&eoptions,0x8000|EO_NOTHROTTLE},
 258          {"-slstart",0,&srendlinev[0],0},{"-slend",0,&erendlinev[0],0},
 259          {"-slstartp",0,&srendlinev[1],0},{"-slendp",0,&erendlinev[1],0},
 260          {0,(void *)DriverArgs,0,0},
 261          {0,0,0,0}
 262         };
 263
 264         memset(docheckie,0,sizeof(docheckie));
 265         ret=ParseArguments(argc, argv, FCEUArgs);
 266         if(cpalette)
 267         {
 268          if(cpalette[0]=='0')
 269           if(cpalette[1]==0)
 270           {
 271            free(cpalette);
 272            cpalette=0;
 273           }
 274         }
 275         if(docheckie[0])
 276          Settings.region_force=2;
 277         if(docheckie[1])
 278          FCEUI_SetGameGenie(1);
 279         FCEUI_DisableSpriteLimitation(eoptions&EO_NO8LIM);
 280         FCEUI_SetSnapName(eoptions&EO_SNAPNAME);
 281
 282         for(x=0;x<2;x++)
 283         {
 284          if(srendlinev[x]<0 || srendlinev[x]>239) srendlinev[x]=0;
 285          if(erendlinev[x]<srendlinev[x] || erendlinev[x]>239) erendlinev[x]=239;
 286         }
 287
 288         FCEUI_SetRenderedLines(srendlinev[0],erendlinev[0],srendlinev[1],erendlinev[1]);
 289         FCEUI_SetSoundVolume(soundvol);
 290         DoDriverArgs();
 291
 292         if(fcexp)
 293         {
 294          int y;
 295          for(y=0;y<5;y++)
 296          {
 297           if(!strncmp(fccortab[y],fcexp,8))
 298           {
 299            UsrInputTypeFC=fccortabi[y];
 300            break;
 301           }
 302          }
 303          free(fcexp);
 304         }
 305         for(x=0;x<2;x++)
 306         {
 307          int y;
 308
 309          if(!inputa[x])
 310           continue;
 311
 312          for(y=0;y<5;y++)
 313          {
 314           if(!strncmp(cortab[y],inputa[x],8))
 315           {
 316            UsrInputType[x]=cortabi[y];
 317            if(y==3)
 318            {
 319             powerpadside&=~(1<<x);
 320             powerpadside|=((((inputa[x][8])-'a')&1)^1)<<x;
 321            }
 322            free(inputa[x]);
 323           }
 324          }
 325         }
 326         return ret;
 327 }
 328
 329
 330 #include "usage.h"
 331
 332 int CLImain(int argc, char *argv[])
 333 {
 334         int last_arg_parsed;
 335         /* TODO if(argc<=1)
 336         {
 337          ShowUsage(argv[0]);
 338          return 1;
 339         }*/
 340
 341         if(!DriverInitialize())
 342         {
 343          return 1;
 344         }
 345
 346         if(!FCEUI_Initialize())
 347          return(1);
 348         GetBaseDirectory(BaseDirectory);
 349         FCEUI_SetBaseDirectory(BaseDirectory);
 350         lastLoadedGameName[0] = 0;
 351
 352         CreateDirs();
 353         LoadConfig(NULL);
 354         last_arg_parsed=DoArgs(argc-1,&argv[1]);
 355         gp2x_opt_setup();
 356         gp2x_cpuclock_gamma_update();
 357         LoadLLGN();
 358         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 359         if(cpalette)
 360          LoadCPalette();
 361         if(InitSound())
 362          inited|=1;
 363
 364         if (argc > 1 && !last_arg_parsed)
 365         {
 366          strncpy(lastLoadedGameName, argv[argc-1], sizeof(lastLoadedGameName));
 367          lastLoadedGameName[sizeof(lastLoadedGameName)-1] = 0;
 368          Exit = 0;
 369         }
 370         else
 371         {
 372          Exit = 1;
 373         }
 374
 375         while (1)
 376         {
 377          if(!Exit)
 378          {
 379           if (fceugi)
 380            CloseGame();
 381           fceugi=FCEUI_LoadGame(lastLoadedGameName);
 382           if (fceugi)
 383           {
 384            char infostring[32];
 385            LoadConfig(lastLoadedGameName);
 386            if (Settings.region_force)
 387             FCEUI_SetVidSystem(Settings.region_force - 1);
 388            ParseGI(fceugi);
 389            InitOtherInput();
 390
 391            GameInterface(GI_INFOSTRING, infostring);
 392            FCEU_DispMessage("%s", infostring);
 393           }
 394           else
 395           {
 396            switch(LoadGameLastError) {
 397             default: strcpy(menuErrorMsg, "failed to load ROM"); break;
 398             case  2: strcpy(menuErrorMsg, "Can't find a ROM for movie"); break;
 399             case 10: strcpy(menuErrorMsg, "FDS BIOS ROM is missing, read docs"); break;
 400             case 11: strcpy(menuErrorMsg, "Error reading auxillary FDS file"); break;
 401            }
 402           }
 403          }
 404          if(Exit || !fceugi)
 405          {
 406           int ret;
 407           ret = gp2x_menu_do();
 408           if (ret == 1) break;          // exit emu
 409           if (ret == 2) {               // reload ROM
 410            Exit = 0;
 411            continue;
 412           }
 413          }
 414
 415          PrepareOtherInput();
 416          RefreshThrottleFPS();
 417          FCEUI_GetCurrentVidSystem(&srendline,&erendline);
 418          gp2x_video_changemode(Settings.scaling == 3 ? 15 : 8);
 419          switch (Settings.scaling & 3) {
 420                  case 0: gp2x_video_set_offs(0);  gp2x_video_RGB_setscaling(0, 320, 240); break;
 421                  case 1: gp2x_video_set_offs(32); gp2x_video_RGB_setscaling(0, 256, 240); break;
 422                  case 2: gp2x_video_set_offs(32); gp2x_video_RGB_setscaling(srendline, 256, erendline-srendline); break;
 423                  case 3: gp2x_video_set_offs(32); gp2x_video_RGB_setscaling(0, 320, 240); break;
 424          }
 425          CleanSurface();
 426          gp2x_start_sound(Settings.sound_rate, 16, 0);
 427          FCEUI_Emulate();
 428         }
 429
 430         if (fceugi)
 431          CloseGame();
 432
 433         SaveLLGN();
 434         DriverKill();
 435         return 0;
 436 }
 437
 438 static int DriverInitialize(void)
 439 {
 440    SetSignals((void *)CloseStuff);
 441
 442    if(!InitVideo()) return 0;
 443    inited|=4;
 444    return 1;
 445 }
 446
 447 static void DriverKill(void)
 448 {
 449  // SaveConfig(NULL); // done explicitly in menu now
 450  SetSignals(SIG_IGN);
 451
 452  if(cpalette) free(cpalette);
 453  cpalette=0;
 454
 455  if(inited&4)
 456   KillVideo();
 457  if(inited&1)
 458   KillSound();
 459  inited=0;
 460 }
 461
 462 void FCEUD_Update(uint8 *xbuf, int16 *Buffer, int Count)
 463 {
 464  if(!Count && !(eoptions&EO_NOTHROTTLE))
 465   SpeedThrottle();
 466  BlitScreen(xbuf);
 467  if(Count && !(eoptions&EO_NOTHROTTLE))
 468   WriteSound(Buffer,Count);
 469  FCEUD_UpdateInput();
 470 }
 471