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fceux/attic/pc/main.c

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/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
* Copyright (C) 2002 Xodnizel
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <unistd.h>
#include <sys/types.h>
#include <signal.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <string.h>
#include <strings.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include "main.h"
#include "throttle.h"
#include "../common/cheat.h"
#include "input.h"
#include "dface.h"
extern int32 fps_scale;
int CloseGame(void);
static char *soundrecfn=0; /* File name of sound recording. */
static int ntsccol=0,ntschue=0,ntsctint=0;
int soundvol=100;
long soundq=0;
int _sound=1;
long soundrate=48000;
#ifdef WIN32
long soundbufsize=52;
#else
long soundbufsize=24;
#endif
#ifdef FRAMESKIP
static int frameskip=0;
#endif
static int inited=0;
static int isloaded=0; // Is game loaded?
int srendlinev[2]={8,0};
int erendlinev[2]={231,239};
static uint8 *DrBaseDirectory;
int eoptions=0;
static void DriverKill(void);
static int DriverInitialize(FCEUGI *gi);
int gametype;
FCEUGI *CurGame=NULL;
static void ParseGI(FCEUGI *gi)
{
ParseGIInput(gi);
gametype=gi->type;
}
#ifndef EXTGUI
void FCEUD_PrintError(char *s)
{
puts(s);
}
void FCEUD_Message(char *s)
{
fputs(s,stdout);
}
#endif
static char *cpalette=0;
static void LoadCPalette(void)
{
uint8 tmpp[192];
FILE *fp;
if(!(fp=FCEUD_UTF8fopen(cpalette,"rb")))
{
printf(" Error loading custom palette from file: %s\n",cpalette);
return;
}
fread(tmpp,1,192,fp);
FCEUI_SetPaletteArray(tmpp);
fclose(fp);
}
#ifdef EXTGUI
extern CFGSTRUCT GUIConfig;
#endif
static CFGSTRUCT fceuconfig[]={
AC(soundrate),
AC(soundq),
AC(_sound),
AC(soundvol),
AC(soundbufsize),
ACS(cpalette),
AC(ntsctint),
AC(ntschue),
AC(ntsccol),
AC(eoptions),
ACA(srendlinev),
ACA(erendlinev),
ADDCFGSTRUCT(InputConfig),
ADDCFGSTRUCT(DriverConfig),
#ifdef EXTGUI
ADDCFGSTRUCT(GUIConfig),
#endif
ENDCFGSTRUCT
};
static void SaveConfig(void)
{
char tdir[2048];
sprintf(tdir,"%s"PSS"fceu98.cfg",DrBaseDirectory);
FCEUI_GetNTSCTH(&ntsctint, &ntschue);
SaveFCEUConfig(tdir,fceuconfig);
}
static void LoadConfig(void)
{
char tdir[2048];
sprintf(tdir,"%s"PSS"fceu98.cfg",DrBaseDirectory);
FCEUI_GetNTSCTH(&ntsctint, &ntschue); /* Get default settings for if
no config file exists. */
LoadFCEUConfig(tdir,fceuconfig);
InputUserActiveFix();
}
static void CreateDirs(void)
{
char *subs[7]={"fcs","fcm","snaps","gameinfo","sav","cheats","movie"};
char tdir[2048];
int x;
#ifdef WIN32
mkdir(DrBaseDirectory);
for(x=0;x<6;x++)
{
sprintf(tdir,"%s"PSS"%s",DrBaseDirectory,subs[x]);
mkdir(tdir);
}
#else
mkdir(DrBaseDirectory,S_IRWXU);
for(x=0;x<6;x++)
{
sprintf(tdir,"%s"PSS"%s",DrBaseDirectory,subs[x]);
mkdir(tdir,S_IRWXU);
}
#endif
}
#ifndef WIN32
static void SetSignals(void (*t)(int))
{
int sigs[11]={SIGINT,SIGTERM,SIGHUP,SIGPIPE,SIGSEGV,SIGFPE,SIGKILL,SIGALRM,SIGABRT,SIGUSR1,SIGUSR2};
int x;
for(x=0;x<11;x++)
signal(sigs[x],t);
}
static void CloseStuff(int signum)
{
DriverKill();
printf("\nSignal %d has been caught and dealt with...\n",signum);
switch(signum)
{
case SIGINT:printf("How DARE you interrupt me!\n");break;
case SIGTERM:printf("MUST TERMINATE ALL HUMANS\n");break;
case SIGHUP:printf("Reach out and hang-up on someone.\n");break;
case SIGPIPE:printf("The pipe has broken! Better watch out for floods...\n");break;
case SIGSEGV:printf("Iyeeeeeeeee!!! A segmentation fault has occurred. Have a fluffy day.\n");break;
/* So much SIGBUS evil. */
#ifdef SIGBUS
#if(SIGBUS!=SIGSEGV)
case SIGBUS:printf("I told you to be nice to the driver.\n");break;
#endif
#endif
case SIGFPE:printf("Those darn floating points. Ne'er know when they'll bite!\n");break;
case SIGALRM:printf("Don't throw your clock at the meowing cats!\n");break;
case SIGABRT:printf("Abort, Retry, Ignore, Fail?\n");break;
case SIGUSR1:
case SIGUSR2:printf("Killing your processes is not nice.\n");break;
}
exit(1);
}
#endif
static void DoArgs(int argc, char *argv[])
{
int x;
static ARGPSTRUCT FCEUArgs[]={
{"-soundbufsize",0,&soundbufsize,0},
{"-soundrate",0,&soundrate,0},
{"-soundq",0,&soundq,0},
#ifdef FRAMESKIP
{"-frameskip",0,&frameskip,0},
#endif
{"-sound",0,&_sound,0},
{"-soundvol",0,&soundvol,0},
{"-cpalette",0,&cpalette,0x4001},
{"-soundrecord",0,&soundrecfn,0x4001},
{"-ntsccol",0,&ntsccol,0},
{"-pal",0,&eoptions,0x8000|EO_PAL},
{"-lowpass",0,&eoptions,0x8000|EO_LOWPASS},
{"-gg",0,&eoptions,0x8000|EO_GAMEGENIE},
{"-no8lim",0,&eoptions,0x8001},
{"-snapname",0,&eoptions,0x8000|EO_SNAPNAME},
{"-nofs",0,&eoptions,0x8000|EO_NOFOURSCORE},
{"-clipsides",0,&eoptions,0x8000|EO_CLIPSIDES},
{"-nothrottle",0,&eoptions,0x8000|EO_NOTHROTTLE},
{"-slstart",0,&srendlinev[0],0},{"-slend",0,&erendlinev[0],0},
{"-slstartp",0,&srendlinev[1],0},{"-slendp",0,&erendlinev[1],0},
{0,(int *)InputArgs,0,0},
{0,(int *)DriverArgs,0,0},
{0,0,0,0}
};
ParseArguments(argc, argv, FCEUArgs);
if(cpalette)
{
if(cpalette[0]=='0')
if(cpalette[1]==0)
{
free(cpalette);
cpalette=0;
}
}
FCEUI_SetVidSystem((eoptions&EO_PAL)?1:0);
FCEUI_SetGameGenie((eoptions&EO_GAMEGENIE)?1:0);
FCEUI_SetLowPass((eoptions&EO_LOWPASS)?1:0);
FCEUI_DisableSpriteLimitation(eoptions&1);
FCEUI_SetSnapName(eoptions&EO_SNAPNAME);
for(x=0;x<2;x++)
{
if(srendlinev[x]<0 || srendlinev[x]>239) srendlinev[x]=0;
if(erendlinev[x]<srendlinev[x] || erendlinev[x]>239) erendlinev[x]=239;
}
FCEUI_SetRenderedLines(srendlinev[0],erendlinev[0],srendlinev[1],erendlinev[1]);
DoDriverArgs();
}
#include "usage.h"
/* Loads a game, given a full path/filename. The driver code must be
initialized after the game is loaded, because the emulator code
provides data necessary for the driver code(number of scanlines to
render, what virtual input devices to use, etc.).
*/
int LoadGame(const char *path)
{
FCEUGI *tmp;
CloseGame();
if(!(tmp=FCEUI_LoadGame(path,1)))
return 0;
CurGame=tmp;
ParseGI(tmp);
RefreshThrottleFPS();
if(!DriverInitialize(tmp))
return(0);
if(soundrecfn)
{
if(!FCEUI_BeginWaveRecord(soundrecfn))
{
free(soundrecfn);
soundrecfn=0;
}
}
isloaded=1;
#ifdef EXTGUI
if(eoptions&EO_AUTOHIDE) GUI_Hide(1);
#endif
FCEUD_NetworkConnect();
return 1;
}
/* Closes a game. Frees memory, and deinitializes the drivers. */
int CloseGame(void)
{
if(!isloaded) return(0);
FCEUI_CloseGame();
DriverKill();
isloaded=0;
CurGame=0;
if(soundrecfn)
FCEUI_EndWaveRecord();
#ifdef EXTGUI
GUI_Hide(0);
#endif
InputUserActiveFix();
return(1);
}
void FCEUD_Update(uint8 *XBuf, int32 *Buffer, int Count);
void DoFun(void)
{
uint8 *gfx;
int32 *sound;
int32 ssize;
static int fskipc=0;
static int opause=0;
#ifdef FRAMESKIP
fskipc=(fskipc+1)%(frameskip+1);
#endif
if(NoWaiting) {gfx=0;}
FCEUI_Emulate(&gfx, &sound, &ssize, fskipc);
FCEUD_Update(gfx, sound, ssize);
if(opause!=FCEUI_EmulationPaused())
{
opause=FCEUI_EmulationPaused();
SilenceSound(opause);
}
}
int CLImain(int argc, char *argv[])
{
int ret;
if(!(ret=FCEUI_Initialize()))
return(0);
DrBaseDirectory=GetBaseDirectory();
FCEUI_SetBaseDirectory(DrBaseDirectory);
CreateDirs();
#ifdef EXTGUI
if(argc==2 && !strcmp(argv[1],"-help")) // I hope no one has a game named "-help" :b
#else
if(argc<=1)
#endif
{
ShowUsage(argv[0]);
return(0);
}
LoadConfig();
DoArgs(argc-2,&argv[1]);
FCEUI_SetNTSCTH(ntsccol, ntsctint, ntschue);
if(cpalette)
LoadCPalette();
/* All the config files and arguments are parsed now. */
#ifdef EXTGUI
return(1);
#else
if(!LoadGame(argv[argc-1]))
{
DriverKill();
return(0);
}
while(CurGame)
DoFun();
#if(0)
{
int x;
for(x=1;x<argc;x++)
{ LoadGame(argv[x]); while(CurGame) DoFun(); }
}
#endif
CloseGame();
SaveConfig();
FCEUI_Kill();
#endif
return(1);
}
static int DriverInitialize(FCEUGI *gi)
{
#ifndef WIN32
SetSignals(CloseStuff);
#endif
/* Initialize video before all else, due to some wacko dependencies
in the SexyAL code(DirectSound) that need to be fixed.
*/
if(!InitVideo(gi)) return 0;
inited|=4;
if(InitSound(gi))
inited|=1;
if(InitJoysticks())
inited|=2;
if(!InitKeyboard()) return 0;
inited|=8;
InitOtherInput();
return 1;
}
static void DriverKill(void)
{
SaveConfig();
#ifndef WIN32
SetSignals(SIG_IGN);
#endif
if(inited&2)
KillJoysticks();
if(inited&8)
KillKeyboard();
if(inited&4)
KillVideo();
if(inited&1)
KillSound();
if(inited&16)
KillMouse();
inited=0;
}
void FCEUD_Update(uint8 *XBuf, int32 *Buffer, int Count)
{
#ifdef NETWORK
extern int FCEUDnetplay;
#endif
int ocount = Count;
// apply frame scaling to Count
Count = (Count<<8)/fps_scale;
if(Count)
{
int32 can=GetWriteSound();
static int uflow=0;
int32 tmpcan;
// don't underflow when scaling fps
if(can >= GetMaxSound() && fps_scale<=256) uflow=1; /* Go into massive underflow mode. */
if(can > Count) can=Count;
else uflow=0;
WriteSound(Buffer,can);
//if(uflow) puts("Underflow");
tmpcan = GetWriteSound();
// don't underflow when scaling fps
if(fps_scale>256 || ((tmpcan < Count*0.90) && !uflow))
{
if(XBuf && (inited&4) && !(NoWaiting & 2))
BlitScreen(XBuf);
Buffer+=can;
Count-=can;
if(Count)
{
if(NoWaiting)
{
can=GetWriteSound();
if(Count>can) Count=can;
WriteSound(Buffer,Count);
}
else
{
while(Count>0)
{
WriteSound(Buffer,(Count<ocount) ? Count : ocount);
Count -= ocount;
}
}
}
} //else puts("Skipped");
#ifdef NETWORK
else if(!NoWaiting && FCEUDnetplay && (uflow || tmpcan >= (Count * 1.8)))
{
if(Count > tmpcan) Count=tmpcan;
while(tmpcan > 0)
{
// printf("Overwrite: %d\n", (Count <= tmpcan)?Count : tmpcan);
WriteSound(Buffer, (Count <= tmpcan)?Count : tmpcan);
tmpcan -= Count;
}
}
#endif
}
else
{
if(!NoWaiting && (!(eoptions&EO_NOTHROTTLE) || FCEUI_EmulationPaused()))
SpeedThrottle();
if(XBuf && (inited&4))
{
BlitScreen(XBuf);
}
}
FCEUD_UpdateInput();
//if(!Count && !NoWaiting && !(eoptions&EO_NOTHROTTLE))
// SpeedThrottle();
//if(XBuf && (inited&4))
//{
// BlitScreen(XBuf);
//}
//if(Count)
// WriteSound(Buffer,Count,NoWaiting);
//FCEUD_UpdateInput();
}
/* Maybe ifndef WXWINDOWS would be better? ^_^ */
#ifndef EXTGUI
FILE *FCEUD_UTF8fopen(const char *fn, const char *mode)
{
return(fopen(fn,mode));
}
#endif
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