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 static const char *skip_path(const char *path)
 132 {
 133         const char *p;
 134         if (path == NULL) return NULL;
 135         for (p = path+strlen(path)-1; p > path && *p != '/'; p--);
 136         if (*p == '/') p++;
 137         return p;
 138 }
 139
 140 int SaveConfig(const char *llgn_path)
 141 {
 142         const char *name = skip_path(llgn_path);
 143         char tdir[2048];
 144         int ret;
 145         if (name)
 146              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 147         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 148         printf("saving cfg to %s ... ", tdir); fflush(stdout);
 149         FCEUI_GetNTSCTH(&ntsctint, &ntschue);
 150         ret=SaveFCEUConfig(tdir,fceuconfig);
 151         printf(ret == 0 ? "done\n" : "failed\n");
 152         return ret;
 153 }
 154
 155 static int LoadConfig(const char *llgn_path)
 156 {
 157         const char *name = skip_path(llgn_path);
 158         char tdir[2048];
 159         int ret;
 160         if (name)
 161              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 162         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 163         printf("loading cfg from %s ... ", tdir); fflush(stdout);
 164         FCEUI_GetNTSCTH(&ntsctint, &ntschue); /* Get default settings for if no config file exists. */
 165         ret=LoadFCEUConfig(tdir,fceuconfig);
 166         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 167         printf(ret == 0 ? "done\n" : "failed\n");
 168         return ret;
 169 }
 170
 171 static void LoadLLGN(void)
 172 {
 173  char tdir[2048];
 174  FILE *f;
 175  int len;
 176  sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 177  f=fopen(tdir, "r");
 178  if(f)
 179  {
 180   len = fread(lastLoadedGameName, 1, sizeof(lastLoadedGameName)-1, f);
 181   lastLoadedGameName[len] = 0;
 182   fclose(f);
 183  }
 184 }
 185
 186 static void SaveLLGN(void)
 187 {
 188  // save last loaded game name
 189  if (lastLoadedGameName[0] && !(eoptions&EO_NOAUTOWRITE))
 190  {
 191   char tdir[2048];
 192   FILE *f;
 193   sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 194   f=fopen(tdir, "w");
 195   if(f)
 196   {
 197    fwrite(lastLoadedGameName, 1, strlen(lastLoadedGameName), f);
 198    fclose(f);
 199    sync();
 200   }
 201  }
 202 }
 203
 204
 205 static void CreateDirs(void)
 206 {
 207  char *subs[]={"fcs","snaps","gameinfo","sav","cheats","cfg","pal"};
 208  char tdir[2048];
 209  int x;
 210
 211  mkdir(BaseDirectory,S_IRWXU);
 212  for(x=0;x<sizeof(subs)/sizeof(subs[0]);x++)
 213  {
 214   sprintf(tdir,"%s"PSS"%s",BaseDirectory,subs[x]);
 215   mkdir(tdir,S_IRWXU);
 216  }
 217 }
 218
 219 static void SetSignals(void (*t)(int))
 220 {
 221   int sigs[11]={SIGINT,SIGTERM,SIGHUP,SIGPIPE,SIGSEGV,SIGFPE,SIGKILL,SIGALRM,SIGABRT,SIGUSR1,SIGUSR2};
 222   int x;
 223   for(x=0;x<11;x++)
 224    signal(sigs[x],t);
 225 }
 226
 227 static void CloseStuff(int signum)
 228 {
 229         DriverKill();
 230         printf("\nSignal %d has been caught and dealt with...\n",signum);
 231         switch(signum)
 232         {
 233          case SIGINT:printf("How DARE you interrupt me!\n");break;
 234          case SIGTERM:printf("MUST TERMINATE ALL HUMANS\n");break;
 235          case SIGHUP:printf("Reach out and hang-up on someone.\n");break;
 236          case SIGPIPE:printf("The pipe has broken!  Better watch out for floods...\n");break;
 237          case SIGSEGV:printf("Iyeeeeeeeee!!!  A segmentation fault has occurred.  Have a fluffy day.\n");break;
 238          #if(SIGBUS!=SIGSEGV)
 239          case SIGBUS:printf("I told you to be nice to the driver.\n");break;
 240          #endif
 241          case SIGFPE:printf("Those darn floating points.  Ne'er know when they'll bite!\n");break;
 242          case SIGALRM:printf("Don't throw your clock at the meowing cats!\n");break;
 243          case SIGABRT:printf("Abort, Retry, Ignore, Fail?\n");break;
 244          case SIGUSR1:
 245          case SIGUSR2:printf("Killing your processes is not nice.\n");break;
 246         }
 247         exit(1);
 248 }
 249
 250 static int DoArgs(int argc, char *argv[])
 251 {
 252         static char *cortab[5]={"none","gamepad","zapper","powerpad","arkanoid"};
 253         static int cortabi[5]={SI_NONE,SI_GAMEPAD,
 254                                SI_ZAPPER,SI_POWERPADA,SI_ARKANOID};
 255         static char *fccortab[5]={"none","arkanoid","shadow","4player","fkb"};
 256         static int fccortabi[5]={SIFC_NONE,SIFC_ARKANOID,SIFC_SHADOW,
 257                                  SIFC_4PLAYER,SIFC_FKB};
 258
 259         int x, ret;
 260         static char *inputa[2]={0,0};
 261         static char *fcexp=0;
 262         static int docheckie[4];
 263
 264         static ARGPSTRUCT FCEUArgs[]={
 265          {"-soundvol",0,&soundvol,0},
 266          {"-cpalette",0,&cpalette,0x4001},
 267
 268          {"-ntsccol",0,&ntsccol,0},
 269          {"-pal",&docheckie[0],0,0},
 270          {"-input1",0,&inputa[0],0x4001},{"-input2",0,&inputa[1],0x4001},
 271          {"-fcexp",0,&fcexp,0x4001},
 272
 273          {"-gg",0,&eoptions,0x8000|EO_GG},
 274          {"-no8lim",0,&eoptions,0x8000|EO_NO8LIM},
 275          {"-snapname",0,&eoptions,0x8000|EO_SNAPNAME},
 276          {"-nofs",0,&eoptions,0x8000|EO_NOFOURSCORE},
 277          {"-clipsides",0,&eoptions,0x8000|EO_CLIPSIDES},
 278          {"-nothrottle",0,&eoptions,0x8000|EO_NOTHROTTLE},
 279          {"-noautowrite",0,&eoptions,0x8000|EO_NOAUTOWRITE},
 280          {"-slstart",0,&srendlinev[0],0},{"-slend",0,&erendlinev[0],0},
 281          {"-slstartp",0,&srendlinev[1],0},{"-slendp",0,&erendlinev[1],0},
 282          {0,(void *)DriverArgs,0,0},
 283          {0,0,0,0}
 284         };
 285
 286         memset(docheckie,0,sizeof(docheckie));
 287         ret=ParseArguments(argc, argv, FCEUArgs);
 288         if(cpalette)
 289         {
 290          if(cpalette[0]=='0')
 291           if(cpalette[1]==0)
 292           {
 293            free(cpalette);
 294            cpalette=0;
 295           }
 296         }
 297         if(docheckie[0])
 298          Settings.region_force=2;
 299         FCEUI_SetGameGenie(eoptions&EO_GG);
 300         FCEUI_DisableSpriteLimitation(eoptions&EO_NO8LIM);
 301         FCEUI_SetSnapName(eoptions&EO_SNAPNAME);
 302
 303         for(x=0;x<2;x++)
 304         {
 305          if(srendlinev[x]<0 || srendlinev[x]>239) srendlinev[x]=0;
 306          if(erendlinev[x]<srendlinev[x] || erendlinev[x]>239) erendlinev[x]=239;
 307         }
 308
 309         FCEUI_SetRenderedLines(srendlinev[0],erendlinev[0],srendlinev[1],erendlinev[1]);
 310         FCEUI_SetSoundVolume(80);
 311         DoDriverArgs();
 312
 313         if(fcexp)
 314         {
 315          int y;
 316          for(y=0;y<5;y++)
 317          {
 318           if(!strncmp(fccortab[y],fcexp,8))
 319           {
 320            UsrInputTypeFC=fccortabi[y];
 321            break;
 322           }
 323          }
 324          free(fcexp);
 325         }
 326         for(x=0;x<2;x++)
 327         {
 328          int y;
 329
 330          if(!inputa[x])
 331           continue;
 332
 333          for(y=0;y<5;y++)
 334          {
 335           if(!strncmp(cortab[y],inputa[x],8))
 336           {
 337            UsrInputType[x]=cortabi[y];
 338            if(y==3)
 339            {
 340             powerpadside&=~(1<<x);
 341             powerpadside|=((((inputa[x][8])-'a')&1)^1)<<x;
 342            }
 343            free(inputa[x]);
 344           }
 345          }
 346         }
 347         return ret;
 348 }
 349
 350
 351 #include "usage.h"
 352
 353 int CLImain(int argc, char *argv[])
 354 {
 355         int last_arg_parsed, ret;
 356         /* TODO if(argc<=1)
 357         {
 358          ShowUsage(argv[0]);
 359          return 1;
 360         }*/
 361
 362         if(!DriverInitialize())
 363         {
 364          return 1;
 365         }
 366
 367         if(!FCEUI_Initialize())
 368          return(1);
 369         GetBaseDirectory(BaseDirectory);
 370         FCEUI_SetBaseDirectory(BaseDirectory);
 371         lastLoadedGameName[0] = 0;
 372
 373         CreateDirs();
 374         LoadConfig(NULL);
 375         last_arg_parsed=DoArgs(argc-1,&argv[1]);
 376         gp2x_opt_setup();
 377         LoadLLGN();
 378         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 379         if(cpalette)
 380          LoadCPalette();
 381         if(InitSound())
 382          inited|=1;
 383
 384         if (argc > 1 && !last_arg_parsed)
 385         {
 386          strncpy(lastLoadedGameName, argv[argc-1], sizeof(lastLoadedGameName));
 387          lastLoadedGameName[sizeof(lastLoadedGameName)-1] = 0;
 388          Exit = 0;
 389         }
 390         else
 391         {
 392          Exit = 1;
 393         }
 394
 395         while (1)
 396         {
 397          if(!Exit)
 398          {
 399           if (fceugi)
 400            CloseGame();
 401           ret=LoadConfig(lastLoadedGameName);
 402           if (ret != 0)
 403           {
 404            LoadConfig(NULL);
 405           }
 406           FCEUI_SetEmuMode(Settings.accurate_mode);
 407           fceugi=FCEUI_LoadGame(lastLoadedGameName);
 408           if (fceugi)
 409           {
 410            char infostring[32];
 411            if (Settings.region_force)
 412             FCEUI_SetVidSystem(Settings.region_force - 1);
 413            ParseGI(fceugi);
 414            InitOtherInput();
 415
 416            if ((eoptions&EO_GG) && geniestage == 0) {
 417             strcpy(infostring, "gg.rom is missing, GG disabled");
 418             eoptions&=~EO_GG;
 419             FCEUI_SetGameGenie(0);
 420            } else
 421             GameInterface(GI_INFOSTRING, infostring);
 422            FCEU_DispMessage("%s", infostring);
 423           }
 424           else
 425           {
 426            switch(LoadGameLastError) {
 427             default: strcpy(menuErrorMsg, "failed to load ROM"); break;
 428             case  2: strcpy(menuErrorMsg, "Can't find a ROM for ips/movie"); break;
 429             case 10: strcpy(menuErrorMsg, "FDS BIOS ROM is missing, read docs"); break;
 430             case 11: strcpy(menuErrorMsg, "Error reading auxillary FDS file"); break;
 431            }
 432           }
 433          }
 434          if(Exit || !fceugi)
 435          {
 436           int ret;
 437           ret = gp2x_menu_do();
 438           if (ret == 1) break;          // exit emu
 439           if (ret == 2) {               // reload ROM
 440            Exit = 0;
 441            continue;
 442           }
 443          }
 444
 445          gp2x_opt_update();
 446          PrepareOtherInput();
 447          FCEUI_GetCurrentVidSystem(&srendline,&erendline);
 448          gp2x_video_changemode(Settings.scaling == 3 ? 15 : 8);
 449          switch (Settings.scaling & 3) {
 450                  case 0: gp2x_video_set_offs(0);  gp2x_video_RGB_setscaling(320, 240); break;
 451                  case 1: gp2x_video_set_offs(32); gp2x_video_RGB_setscaling(256, 240); break;
 452                  case 2: gp2x_video_set_offs(32+srendline*320); gp2x_video_RGB_setscaling(256, erendline-srendline); break;
 453                  case 3: gp2x_video_set_offs(32); gp2x_video_RGB_setscaling(320, 240); break;
 454          }
 455          CleanSurface();
 456          gp2x_start_sound(Settings.sound_rate, 16, 0);
 457          RefreshThrottleFPS();
 458          FCEUI_Emulate();
 459         }
 460
 461         if (fceugi)
 462          CloseGame();
 463
 464         SaveLLGN();
 465         FCEUI_Kill();
 466         DriverKill();
 467         return 0;
 468 }
 469
 470 static int DriverInitialize(void)
 471 {
 472    SetSignals((void *)CloseStuff);
 473
 474    if(!InitVideo()) return 0;
 475    inited|=4;
 476    return 1;
 477 }
 478
 479 static void DriverKill(void)
 480 {
 481  // SaveConfig(NULL); // done explicitly in menu now
 482  SetSignals(SIG_DFL);
 483
 484  if(cpalette) free(cpalette);
 485  cpalette=0;
 486
 487  if(inited&4)
 488   KillVideo();
 489  if(inited&1)
 490   KillSound();
 491  inited=0;
 492 }
 493
 494 void FCEUD_Update(uint8 *xbuf, int16 *Buffer, int Count)
 495 {
 496  FCEUD_UpdateInput();   // must update input before blitting because of save confirmation stuff
 497  BlitPrepare(xbuf == NULL);
 498  if(!(eoptions&EO_NOTHROTTLE))
 499  {
 500   if(Count)
 501    WriteSound(Buffer,Count);
 502   SpeedThrottle();
 503  }
 504  BlitScreen(xbuf == NULL);
 505  // make sure last frame won't get skipped, because we need it for menu bg
 506  if (Exit) FSkip=0;
 507 }
 508