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 #include "../../cart.h"
  43
  44 #include "dface.h"
  45
  46
  47 void CleanSurface(void);
  48
  49 // internals
  50 extern char lastLoadedGameName[2048];
  51 extern uint8 Exit; // exit emu loop flag
  52 extern int FSkip;
  53 void CloseGame(void);
  54
  55 FCEUGI *fceugi = NULL;
  56 int ntsccol=0,ntschue=-1,ntsctint=-1;
  57 int soundvol=70;
  58 int inited=0;
  59
  60 int srendlinev[2]={8,0};
  61 int erendlinev[2]={231,239};
  62 int srendline,erendline;
  63
  64
  65 static char BaseDirectory[2048];
  66
  67 int eoptions=0;
  68
  69 static void DriverKill(void);
  70 static int DriverInitialize(void);
  71
  72 static int gametype;
  73 #include "input.c"
  74
  75 static void ParseGI(FCEUGI *gi)
  76 {
  77  gametype=gi->type;
  78
  79  InputType[0]=UsrInputType[0];
  80  InputType[1]=UsrInputType[1];
  81  InputTypeFC=UsrInputTypeFC;
  82
  83  if(gi->input[0]>=0)
  84   InputType[0]=gi->input[0];
  85  if(gi->input[1]>=0)
  86   InputType[1]=gi->input[1];
  87  if(gi->inputfc>=0)
  88   InputTypeFC=gi->inputfc;
  89 }
  90
  91 void FCEUD_PrintError(char *s)
  92 {
  93  puts(s);
  94 }
  95
  96 char *cpalette=0;
  97 void LoadCPalette(void)
  98 {
  99  char tmpp[192];
 100  FILE *fp;
 101
 102  if(!(fp=fopen(cpalette,"rb")))
 103  {
 104   printf(" Error loading custom palette from file: %s\n",cpalette);
 105   free(cpalette);
 106   cpalette=0;
 107   return;
 108  }
 109  fread(tmpp,1,192,fp);
 110  FCEUI_SetPaletteArray((uint8 *)tmpp);
 111  fclose(fp);
 112 }
 113
 114 static CFGSTRUCT fceuconfig[]={
 115         AC(soundvol),
 116         ACS(cpalette),
 117         AC(ntsctint),
 118         AC(ntschue),
 119         AC(ntsccol),
 120         AC(UsrInputTypeFC),
 121         ACA(UsrInputType),
 122         AC(powerpadside),
 123         AC(powerpadsc),
 124         AC(eoptions),
 125         ACA(srendlinev),
 126         ACA(erendlinev),
 127         ADDCFGSTRUCT(DriverConfig),
 128         ENDCFGSTRUCT
 129 };
 130
 131 void SaveConfig(const char *name)
 132 {
 133         char tdir[2048];
 134         if (name)
 135              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 136         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 137         FCEUI_GetNTSCTH(&ntsctint, &ntschue);
 138         SaveFCEUConfig(tdir,fceuconfig);
 139 }
 140
 141 static void LoadConfig(const char *name)
 142 {
 143         char tdir[2048];
 144         if (name)
 145              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 146         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 147         FCEUI_GetNTSCTH(&ntsctint, &ntschue); /* Get default settings for if no config file exists. */
 148         LoadFCEUConfig(tdir,fceuconfig);
 149         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 150 }
 151
 152 static void LoadLLGN(void)
 153 {
 154  char tdir[2048];
 155  FILE *f;
 156  int len;
 157  sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 158  f=fopen(tdir, "r");
 159  if(f)
 160  {
 161   len = fread(lastLoadedGameName, 1, sizeof(lastLoadedGameName)-1, f);
 162   lastLoadedGameName[len] = 0;
 163   fclose(f);
 164  }
 165 }
 166
 167 static void SaveLLGN(void)
 168 {
 169  // save last loaded game name
 170  if (lastLoadedGameName[0] && !(eoptions&EO_NOAUTOWRITE))
 171  {
 172   char tdir[2048];
 173   FILE *f;
 174   sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 175   f=fopen(tdir, "w");
 176   if(f)
 177   {
 178    fwrite(lastLoadedGameName, 1, strlen(lastLoadedGameName), f);
 179    fclose(f);
 180    sync();
 181   }
 182  }
 183 }
 184
 185
 186 static void CreateDirs(void)
 187 {
 188  char *subs[]={"fcs","snaps","gameinfo","sav","cheats","cfg","pal"};
 189  char tdir[2048];
 190  int x;
 191
 192  mkdir(BaseDirectory,S_IRWXU);
 193  for(x=0;x<sizeof(subs)/sizeof(subs[0]);x++)
 194  {
 195   sprintf(tdir,"%s"PSS"%s",BaseDirectory,subs[x]);
 196   mkdir(tdir,S_IRWXU);
 197  }
 198 }
 199
 200 static void SetSignals(void (*t)(int))
 201 {
 202   int sigs[11]={SIGINT,SIGTERM,SIGHUP,SIGPIPE,SIGSEGV,SIGFPE,SIGKILL,SIGALRM,SIGABRT,SIGUSR1,SIGUSR2};
 203   int x;
 204   for(x=0;x<11;x++)
 205    signal(sigs[x],t);
 206 }
 207
 208 static void CloseStuff(int signum)
 209 {
 210         DriverKill();
 211         printf("\nSignal %d has been caught and dealt with...\n",signum);
 212         switch(signum)
 213         {
 214          case SIGINT:printf("How DARE you interrupt me!\n");break;
 215          case SIGTERM:printf("MUST TERMINATE ALL HUMANS\n");break;
 216          case SIGHUP:printf("Reach out and hang-up on someone.\n");break;
 217          case SIGPIPE:printf("The pipe has broken!  Better watch out for floods...\n");break;
 218          case SIGSEGV:printf("Iyeeeeeeeee!!!  A segmentation fault has occurred.  Have a fluffy day.\n");break;
 219          #if(SIGBUS!=SIGSEGV)
 220          case SIGBUS:printf("I told you to be nice to the driver.\n");break;
 221          #endif
 222          case SIGFPE:printf("Those darn floating points.  Ne'er know when they'll bite!\n");break;
 223          case SIGALRM:printf("Don't throw your clock at the meowing cats!\n");break;
 224          case SIGABRT:printf("Abort, Retry, Ignore, Fail?\n");break;
 225          case SIGUSR1:
 226          case SIGUSR2:printf("Killing your processes is not nice.\n");break;
 227         }
 228         exit(1);
 229 }
 230
 231 static int DoArgs(int argc, char *argv[])
 232 {
 233         static char *cortab[5]={"none","gamepad","zapper","powerpad","arkanoid"};
 234         static int cortabi[5]={SI_NONE,SI_GAMEPAD,
 235                                SI_ZAPPER,SI_POWERPADA,SI_ARKANOID};
 236         static char *fccortab[5]={"none","arkanoid","shadow","4player","fkb"};
 237         static int fccortabi[5]={SIFC_NONE,SIFC_ARKANOID,SIFC_SHADOW,
 238                                  SIFC_4PLAYER,SIFC_FKB};
 239
 240         int x, ret;
 241         static char *inputa[2]={0,0};
 242         static char *fcexp=0;
 243         static int docheckie[4];
 244
 245         static ARGPSTRUCT FCEUArgs[]={
 246          {"-soundvol",0,&soundvol,0},
 247          {"-cpalette",0,&cpalette,0x4001},
 248
 249          {"-ntsccol",0,&ntsccol,0},
 250          {"-pal",&docheckie[0],0,0},
 251          {"-input1",0,&inputa[0],0x4001},{"-input2",0,&inputa[1],0x4001},
 252          {"-fcexp",0,&fcexp,0x4001},
 253
 254          {"-gg",0,&eoptions,0x8000|EO_GG},
 255          {"-no8lim",0,&eoptions,0x8000|EO_NO8LIM},
 256          {"-snapname",0,&eoptions,0x8000|EO_SNAPNAME},
 257          {"-nofs",0,&eoptions,0x8000|EO_NOFOURSCORE},
 258          {"-clipsides",0,&eoptions,0x8000|EO_CLIPSIDES},
 259          {"-nothrottle",0,&eoptions,0x8000|EO_NOTHROTTLE},
 260          {"-noautowrite",0,&eoptions,0x8000|EO_NOAUTOWRITE},
 261          {"-slstart",0,&srendlinev[0],0},{"-slend",0,&erendlinev[0],0},
 262          {"-slstartp",0,&srendlinev[1],0},{"-slendp",0,&erendlinev[1],0},
 263          {0,(void *)DriverArgs,0,0},
 264          {0,0,0,0}
 265         };
 266
 267         memset(docheckie,0,sizeof(docheckie));
 268         ret=ParseArguments(argc, argv, FCEUArgs);
 269         if(cpalette)
 270         {
 271          if(cpalette[0]=='0')
 272           if(cpalette[1]==0)
 273           {
 274            free(cpalette);
 275            cpalette=0;
 276           }
 277         }
 278         if(docheckie[0])
 279          Settings.region_force=2;
 280         FCEUI_SetGameGenie(eoptions&EO_GG);
 281         FCEUI_DisableSpriteLimitation(eoptions&EO_NO8LIM);
 282         FCEUI_SetSnapName(eoptions&EO_SNAPNAME);
 283
 284         for(x=0;x<2;x++)
 285         {
 286          if(srendlinev[x]<0 || srendlinev[x]>239) srendlinev[x]=0;
 287          if(erendlinev[x]<srendlinev[x] || erendlinev[x]>239) erendlinev[x]=239;
 288         }
 289
 290         FCEUI_SetRenderedLines(srendlinev[0],erendlinev[0],srendlinev[1],erendlinev[1]);
 291         FCEUI_SetSoundVolume(80);
 292         DoDriverArgs();
 293
 294         if(fcexp)
 295         {
 296          int y;
 297          for(y=0;y<5;y++)
 298          {
 299           if(!strncmp(fccortab[y],fcexp,8))
 300           {
 301            UsrInputTypeFC=fccortabi[y];
 302            break;
 303           }
 304          }
 305          free(fcexp);
 306         }
 307         for(x=0;x<2;x++)
 308         {
 309          int y;
 310
 311          if(!inputa[x])
 312           continue;
 313
 314          for(y=0;y<5;y++)
 315          {
 316           if(!strncmp(cortab[y],inputa[x],8))
 317           {
 318            UsrInputType[x]=cortabi[y];
 319            if(y==3)
 320            {
 321             powerpadside&=~(1<<x);
 322             powerpadside|=((((inputa[x][8])-'a')&1)^1)<<x;
 323            }
 324            free(inputa[x]);
 325           }
 326          }
 327         }
 328         return ret;
 329 }
 330
 331
 332 #include "usage.h"
 333
 334 int CLImain(int argc, char *argv[])
 335 {
 336         int last_arg_parsed;
 337         /* TODO if(argc<=1)
 338         {
 339          ShowUsage(argv[0]);
 340          return 1;
 341         }*/
 342
 343         if(!DriverInitialize())
 344         {
 345          return 1;
 346         }
 347
 348         if(!FCEUI_Initialize())
 349          return(1);
 350         GetBaseDirectory(BaseDirectory);
 351         FCEUI_SetBaseDirectory(BaseDirectory);
 352         lastLoadedGameName[0] = 0;
 353
 354         CreateDirs();
 355         LoadConfig(NULL);
 356         last_arg_parsed=DoArgs(argc-1,&argv[1]);
 357         gp2x_opt_setup();
 358         LoadLLGN();
 359         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 360         if(cpalette)
 361          LoadCPalette();
 362         if(InitSound())
 363          inited|=1;
 364
 365         if (argc > 1 && !last_arg_parsed)
 366         {
 367          strncpy(lastLoadedGameName, argv[argc-1], sizeof(lastLoadedGameName));
 368          lastLoadedGameName[sizeof(lastLoadedGameName)-1] = 0;
 369          Exit = 0;
 370         }
 371         else
 372         {
 373          Exit = 1;
 374         }
 375
 376         while (1)
 377         {
 378          if(!Exit)
 379          {
 380           if (fceugi)
 381            CloseGame();
 382           fceugi=FCEUI_LoadGame(lastLoadedGameName);
 383           if (fceugi)
 384           {
 385            char infostring[32];
 386            LoadConfig(lastLoadedGameName);
 387            if (Settings.region_force)
 388             FCEUI_SetVidSystem(Settings.region_force - 1);
 389            ParseGI(fceugi);
 390            InitOtherInput();
 391
 392            if ((eoptions&EO_GG) && geniestage == 0) {
 393             strcpy(infostring, "gg.rom is missing, GG disabled");
 394             eoptions&=~EO_GG;
 395             FCEUI_SetGameGenie(0);
 396            } else
 397             GameInterface(GI_INFOSTRING, infostring);
 398            FCEU_DispMessage("%s", infostring);
 399           }
 400           else
 401           {
 402            switch(LoadGameLastError) {
 403             default: strcpy(menuErrorMsg, "failed to load ROM"); break;
 404             case  2: strcpy(menuErrorMsg, "Can't find a ROM for ips/movie"); break;
 405             case 10: strcpy(menuErrorMsg, "FDS BIOS ROM is missing, read docs"); break;
 406             case 11: strcpy(menuErrorMsg, "Error reading auxillary FDS file"); break;
 407            }
 408           }
 409          }
 410          if(Exit || !fceugi)
 411          {
 412           int ret;
 413           ret = gp2x_menu_do();
 414           if (ret == 1) break;          // exit emu
 415           if (ret == 2) {               // reload ROM
 416            Exit = 0;
 417            continue;
 418           }
 419          }
 420
 421          gp2x_opt_update();
 422          PrepareOtherInput();
 423          FCEUI_GetCurrentVidSystem(&srendline,&erendline);
 424          gp2x_video_changemode(Settings.scaling == 3 ? 15 : 8);
 425          switch (Settings.scaling & 3) {
 426                  case 0: gp2x_video_set_offs(0);  gp2x_video_RGB_setscaling(320, 240); break;
 427                  case 1: gp2x_video_set_offs(32); gp2x_video_RGB_setscaling(256, 240); break;
 428                  case 2: gp2x_video_set_offs(32+srendline*320); gp2x_video_RGB_setscaling(256, erendline-srendline); break;
 429                  case 3: gp2x_video_set_offs(32); gp2x_video_RGB_setscaling(320, 240); break;
 430          }
 431          CleanSurface();
 432          gp2x_start_sound(Settings.sound_rate, 16, 0);
 433          RefreshThrottleFPS();
 434          FCEUI_Emulate();
 435         }
 436
 437         if (fceugi)
 438          CloseGame();
 439
 440         SaveLLGN();
 441         DriverKill();
 442         return 0;
 443 }
 444
 445 static int DriverInitialize(void)
 446 {
 447    SetSignals((void *)CloseStuff);
 448
 449    if(!InitVideo()) return 0;
 450    inited|=4;
 451    return 1;
 452 }
 453
 454 static void DriverKill(void)
 455 {
 456  // SaveConfig(NULL); // done explicitly in menu now
 457  SetSignals(SIG_DFL);
 458
 459  if(cpalette) free(cpalette);
 460  cpalette=0;
 461
 462  if(inited&4)
 463   KillVideo();
 464  if(inited&1)
 465   KillSound();
 466  inited=0;
 467 }
 468
 469 void FCEUD_Update(uint8 *xbuf, int16 *Buffer, int Count)
 470 {
 471  FCEUD_UpdateInput();   // must update input before blitting because of save confirmation stuff
 472  BlitPrepare(xbuf == NULL);
 473  if(!(eoptions&EO_NOTHROTTLE))
 474  {
 475   if(Count)
 476    WriteSound(Buffer,Count);
 477   SpeedThrottle();
 478  }
 479  BlitScreen(xbuf == NULL);
 480  // make sure last frame won't get skipped, because we need it for menu bg
 481  if (Exit) FSkip=0;
 482 }
 483