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 static char *cpalette=0;
  95 static 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   return;
 104  }
 105  fread(tmpp,1,192,fp);
 106  FCEUI_SetPaletteArray((uint8 *)tmpp);
 107  fclose(fp);
 108 }
 109
 110 static CFGSTRUCT fceuconfig[]={
 111         AC(soundvol),
 112         ACS(cpalette),
 113         AC(ntsctint),
 114         AC(ntschue),
 115         AC(ntsccol),
 116         AC(UsrInputTypeFC),
 117         ACA(UsrInputType),
 118         AC(powerpadside),
 119         AC(powerpadsc),
 120         AC(eoptions),
 121         ACA(srendlinev),
 122         ACA(erendlinev),
 123         ADDCFGSTRUCT(DriverConfig),
 124         ENDCFGSTRUCT
 125 };
 126
 127 void SaveConfig(const char *name)
 128 {
 129         char tdir[2048];
 130         if (name)
 131              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 132         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 133         FCEUI_GetNTSCTH(&ntsctint, &ntschue);
 134         SaveFCEUConfig(tdir,fceuconfig);
 135 }
 136
 137 static void LoadConfig(const char *name)
 138 {
 139         char tdir[2048];
 140         if (name)
 141              sprintf(tdir,"%s"PSS"cfg"PSS"%s.cfg",BaseDirectory,name);
 142         else sprintf(tdir,"%s"PSS"fceu2.cfg",BaseDirectory);
 143         FCEUI_GetNTSCTH(&ntsctint, &ntschue); /* Get default settings for if no config file exists. */
 144         LoadFCEUConfig(tdir,fceuconfig);
 145         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 146 }
 147
 148 static void LoadLLGN(void)
 149 {
 150  char tdir[2048];
 151  FILE *f;
 152  int len;
 153  sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 154  f=fopen(tdir, "r");
 155  if(f)
 156  {
 157   len = fread(lastLoadedGameName, 1, sizeof(lastLoadedGameName)-1, f);
 158   lastLoadedGameName[len] = 0;
 159   fclose(f);
 160  }
 161 }
 162
 163 static void SaveLLGN(void)
 164 {
 165  // save last loaded game name
 166  if (lastLoadedGameName[0])
 167  {
 168   char tdir[2048];
 169   FILE *f;
 170   sprintf(tdir,"%s"PSS"last_rom.txt",BaseDirectory);
 171   f=fopen(tdir, "w");
 172   if(f)
 173   {
 174    fwrite(lastLoadedGameName, 1, strlen(lastLoadedGameName), f);
 175    fclose(f);
 176    sync();
 177   }
 178  }
 179 }
 180
 181
 182 static void CreateDirs(void)
 183 {
 184  char *subs[]={"fcs","snaps","gameinfo","sav","cheats","cfg"};
 185  char tdir[2048];
 186  int x;
 187
 188  mkdir(BaseDirectory,S_IRWXU);
 189  for(x=0;x<sizeof(subs)/sizeof(subs[0]);x++)
 190  {
 191   sprintf(tdir,"%s"PSS"%s",BaseDirectory,subs[x]);
 192   mkdir(tdir,S_IRWXU);
 193  }
 194 }
 195
 196 static void SetSignals(void (*t)(int))
 197 {
 198   int sigs[11]={SIGINT,SIGTERM,SIGHUP,SIGPIPE,SIGSEGV,SIGFPE,SIGKILL,SIGALRM,SIGABRT,SIGUSR1,SIGUSR2};
 199   int x;
 200   for(x=0;x<11;x++)
 201    signal(sigs[x],t);
 202 }
 203
 204 static void CloseStuff(int signum)
 205 {
 206         DriverKill();
 207         printf("\nSignal %d has been caught and dealt with...\n",signum);
 208         switch(signum)
 209         {
 210          case SIGINT:printf("How DARE you interrupt me!\n");break;
 211          case SIGTERM:printf("MUST TERMINATE ALL HUMANS\n");break;
 212          case SIGHUP:printf("Reach out and hang-up on someone.\n");break;
 213          case SIGPIPE:printf("The pipe has broken!  Better watch out for floods...\n");break;
 214          case SIGSEGV:printf("Iyeeeeeeeee!!!  A segmentation fault has occurred.  Have a fluffy day.\n");break;
 215          /* So much SIGBUS evil. */
 216          #ifdef SIGBUS
 217          #if(SIGBUS!=SIGSEGV)
 218          case SIGBUS:printf("I told you to be nice to the driver.\n");break;
 219          #endif
 220          #endif
 221          case SIGFPE:printf("Those darn floating points.  Ne'er know when they'll bite!\n");break;
 222          case SIGALRM:printf("Don't throw your clock at the meowing cats!\n");break;
 223          case SIGABRT:printf("Abort, Retry, Ignore, Fail?\n");break;
 224          case SIGUSR1:
 225          case SIGUSR2:printf("Killing your processes is not nice.\n");break;
 226         }
 227         exit(1);
 228 }
 229
 230 static int DoArgs(int argc, char *argv[])
 231 {
 232         static char *cortab[5]={"none","gamepad","zapper","powerpad","arkanoid"};
 233         static int cortabi[5]={SI_NONE,SI_GAMEPAD,
 234                                SI_ZAPPER,SI_POWERPADA,SI_ARKANOID};
 235         static char *fccortab[5]={"none","arkanoid","shadow","4player","fkb"};
 236         static int fccortabi[5]={SIFC_NONE,SIFC_ARKANOID,SIFC_SHADOW,
 237                                  SIFC_4PLAYER,SIFC_FKB};
 238
 239         int x, ret;
 240         static char *inputa[2]={0,0};
 241         static char *fcexp=0;
 242         static int docheckie[4];
 243
 244         static ARGPSTRUCT FCEUArgs[]={
 245          {"-soundvol",0,&soundvol,0},
 246          {"-cpalette",0,&cpalette,0x4001},
 247
 248          {"-ntsccol",0,&ntsccol,0},
 249          {"-pal",&docheckie[0],0,0},
 250          {"-input1",0,&inputa[0],0x4001},{"-input2",0,&inputa[1],0x4001},
 251          {"-fcexp",0,&fcexp,0x4001},
 252
 253          {"-gg",&docheckie[1],0,0},
 254          {"-no8lim",0,&eoptions,0x8001},
 255          {"-subase",0,&eoptions,0x8002},
 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          {"-slstart",0,&srendlinev[0],0},{"-slend",0,&erendlinev[0],0},
 261          {"-slstartp",0,&srendlinev[1],0},{"-slendp",0,&erendlinev[1],0},
 262          {0,(void *)DriverArgs,0,0},
 263          {0,0,0,0}
 264         };
 265
 266         memset(docheckie,0,sizeof(docheckie));
 267         ret=ParseArguments(argc, argv, FCEUArgs);
 268         if(cpalette)
 269         {
 270          if(cpalette[0]=='0')
 271           if(cpalette[1]==0)
 272           {
 273            free(cpalette);
 274            cpalette=0;
 275           }
 276         }
 277         if(docheckie[0])
 278          Settings.region_force=2;
 279         if(docheckie[1])
 280          FCEUI_SetGameGenie(1);
 281         FCEUI_DisableSpriteLimitation(1);
 282         FCEUI_SaveExtraDataUnderBase(eoptions&2);
 283         FCEUI_SetSnapName(eoptions&EO_SNAPNAME);
 284
 285         for(x=0;x<2;x++)
 286         {
 287          if(srendlinev[x]<0 || srendlinev[x]>239) srendlinev[x]=0;
 288          if(erendlinev[x]<srendlinev[x] || erendlinev[x]>239) erendlinev[x]=239;
 289         }
 290
 291         printf("FCEUI_SetRenderedLines: %d, %d, %d, %d\n",srendlinev[0],erendlinev[0],srendlinev[1],erendlinev[1]);
 292         printf("clip sides: %d\n", eoptions&EO_CLIPSIDES);
 293         FCEUI_SetRenderedLines(srendlinev[0],erendlinev[0],srendlinev[1],erendlinev[1]);
 294         FCEUI_SetSoundVolume(soundvol);
 295         DoDriverArgs();
 296
 297         if(fcexp)
 298         {
 299          int y;
 300          for(y=0;y<5;y++)
 301          {
 302           if(!strncmp(fccortab[y],fcexp,8))
 303           {
 304            UsrInputTypeFC=fccortabi[y];
 305            break;
 306           }
 307          }
 308          free(fcexp);
 309         }
 310         for(x=0;x<2;x++)
 311         {
 312          int y;
 313
 314          if(!inputa[x])
 315           continue;
 316
 317          for(y=0;y<5;y++)
 318          {
 319           if(!strncmp(cortab[y],inputa[x],8))
 320           {
 321            UsrInputType[x]=cortabi[y];
 322            if(y==3)
 323            {
 324             powerpadside&=~(1<<x);
 325             powerpadside|=((((inputa[x][8])-'a')&1)^1)<<x;
 326            }
 327            free(inputa[x]);
 328           }
 329          }
 330         }
 331         return ret;
 332 }
 333
 334
 335 #include "usage.h"
 336
 337 int CLImain(int argc, char *argv[])
 338 {
 339         int last_arg_parsed;
 340         /* TODO if(argc<=1)
 341         {
 342          ShowUsage(argv[0]);
 343          return 1;
 344         }*/
 345
 346         if(!DriverInitialize())
 347         {
 348          return 1;
 349         }
 350
 351         if(!FCEUI_Initialize())
 352          return(1);
 353         GetBaseDirectory(BaseDirectory);
 354         FCEUI_SetBaseDirectory(BaseDirectory);
 355         lastLoadedGameName[0] = 0;
 356
 357         CreateDirs();
 358         LoadConfig(NULL);
 359         last_arg_parsed=DoArgs(argc-1,&argv[1]);
 360         gp2x_opt_setup();
 361         gp2x_cpuclock_gamma_update();
 362         LoadLLGN();
 363         FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
 364         if(cpalette)
 365          LoadCPalette(); // TODO
 366         if(InitSound())
 367          inited|=1;
 368
 369         if (argc > 1 && !last_arg_parsed)
 370         {
 371          strncpy(lastLoadedGameName, argv[argc-1], sizeof(lastLoadedGameName));
 372          lastLoadedGameName[sizeof(lastLoadedGameName)-1] = 0;
 373          Exit = 0;
 374         }
 375         else
 376         {
 377          Exit = 1;
 378         }
 379
 380         while (1)
 381         {
 382          if(!Exit)
 383          {
 384           if (fceugi)
 385            CloseGame();
 386           fceugi=FCEUI_LoadGame(lastLoadedGameName);
 387           if (fceugi)
 388           {
 389            char infostring[32];
 390            LoadConfig(lastLoadedGameName);
 391            if (Settings.region_force)
 392             FCEUI_SetVidSystem(Settings.region_force - 1);
 393            ParseGI(fceugi);
 394            InitOtherInput();
 395
 396            GameInterface(GI_INFOSTRING, infostring);
 397            FCEU_DispMessage("%s", infostring);
 398           }
 399           else
 400           {
 401            switch(LoadGameLastError) {
 402             default: strcpy(menuErrorMsg, "failed to load ROM"); break;
 403             case  2: strcpy(menuErrorMsg, "Can't find a ROM for movie"); break;
 404             case 10: strcpy(menuErrorMsg, "FDS BIOS ROM is missing, read docs"); break;
 405             case 11: strcpy(menuErrorMsg, "Error reading auxillary FDS file"); break;
 406            }
 407           }
 408          }
 409          if(Exit || !fceugi)
 410          {
 411           int ret;
 412           ret = gp2x_menu_do();
 413           if (ret == 1) break;          // exit emu
 414           if (ret == 2) {               // reload ROM
 415            Exit = 0;
 416            continue;
 417           }
 418          }
 419
 420          PrepareOtherInput();
 421          RefreshThrottleFPS();
 422          FCEUI_GetCurrentVidSystem(&srendline,&erendline);
 423          gp2x_video_changemode(Settings.scaling == 3 ? 15 : 8);
 424          switch (Settings.scaling & 3) {
 425                  case 0: gp2x_video_set_offs(0);  gp2x_video_RGB_setscaling(0, 320, 240); break;
 426                  case 1: gp2x_video_set_offs(32); gp2x_video_RGB_setscaling(0, 256, 240); break;
 427                  case 2: gp2x_video_set_offs(32); gp2x_video_RGB_setscaling(srendline, 256, erendline-srendline); break;
 428                  case 3: gp2x_video_set_offs(32); gp2x_video_RGB_setscaling(0, 320, 240); break;
 429          }
 430          CleanSurface();
 431          gp2x_start_sound(Settings.sound_rate, 16, 0);
 432          FCEUI_Emulate();
 433         }
 434
 435         if (fceugi)
 436          CloseGame();
 437
 438         SaveLLGN();
 439         DriverKill();
 440         return 0;
 441 }
 442
 443 static int DriverInitialize(void)
 444 {
 445    SetSignals((void *)CloseStuff);
 446
 447    if(!InitVideo()) return 0;
 448    inited|=4;
 449    return 1;
 450 }
 451
 452 static void DriverKill(void)
 453 {
 454  // SaveConfig(NULL); // done explicitly in menu now
 455  SetSignals(SIG_IGN);
 456
 457  if(inited&4)
 458   KillVideo();
 459  if(inited&1)
 460   KillSound();
 461  inited=0;
 462 }
 463
 464 void FCEUD_Update(uint8 *xbuf, int16 *Buffer, int Count)
 465 {
 466  if(!Count && !(eoptions&EO_NOTHROTTLE))
 467   SpeedThrottle();
 468  BlitScreen(xbuf);
 469  if(Count && !(eoptions&EO_NOTHROTTLE))
 470   WriteSound(Buffer,Count);
 471  FCEUD_UpdateInput();
 472 }
 473