mirror of
https://github.com/dborth/fceugx.git
synced 2024-12-27 09:01:56 +01:00
349 lines
8.0 KiB
C
349 lines
8.0 KiB
C
/* 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 <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
#include <zlib.h>
|
|
|
|
#include "types.h"
|
|
#include "netplay.h"
|
|
#include "fceu.h"
|
|
#include "general.h"
|
|
#include "state.h"
|
|
#include "cheat.h"
|
|
#include "input.h"
|
|
#include "endian.h"
|
|
|
|
extern int FCEUD_SendData(void *data, uint32 len);
|
|
extern void FCEUD_NetworkClose(void);
|
|
|
|
int FCEUnetplay=0;
|
|
|
|
static uint8 netjoy[4]; /* Controller cache. */
|
|
static int numlocal;
|
|
static int netdivisor;
|
|
static int netdcount;
|
|
|
|
/* NetError should only be called after a FCEUD_*Data function returned 0, in the function
|
|
that called FCEUD_*Data, to prevent it from being called twice.
|
|
*/
|
|
|
|
static void NetError(void)
|
|
{
|
|
FCEU_DispMessage("Network error/connection lost!");
|
|
FCEUD_NetworkClose();
|
|
}
|
|
|
|
void FCEUI_NetplayStop(void)
|
|
{
|
|
if(FCEUnetplay)
|
|
{
|
|
FCEUnetplay = 0;
|
|
FCEU_FlushGameCheats(0,1); /* Don't save netplay cheats. */
|
|
FCEU_LoadGameCheats(0); /* Reload our original cheats. */
|
|
}
|
|
else puts("Check your code!");
|
|
}
|
|
|
|
int FCEUI_NetplayStart(int nlocal, int divisor)
|
|
{
|
|
FCEU_FlushGameCheats(0, 0); /* Save our pre-netplay cheats. */
|
|
FCEU_LoadGameCheats(0); /* Load them again, for pre-multiplayer
|
|
action.
|
|
*/
|
|
FCEUnetplay = 1;
|
|
memset(netjoy,0,sizeof(netjoy));
|
|
numlocal = nlocal;
|
|
netdivisor = divisor;
|
|
netdcount = 0;
|
|
return(1);
|
|
}
|
|
|
|
int FCEUNET_SendCommand(uint8 cmd, uint32 len)
|
|
{
|
|
uint8 buf[numlocal + 1 + 4];
|
|
|
|
buf[0] = 0xFF;
|
|
FCEU_en32lsb(&buf[numlocal], len);
|
|
buf[numlocal + 4] = cmd;
|
|
#ifdef NETWORK
|
|
if(!FCEUD_SendData(buf,numlocal + 1 + 4))
|
|
{
|
|
NetError();
|
|
return(0);
|
|
}
|
|
#endif
|
|
return(1);
|
|
}
|
|
|
|
void FCEUI_NetplayText(uint8 *text)
|
|
{
|
|
uint32 len;
|
|
|
|
len = strlen((char *)text);
|
|
|
|
if(!FCEUNET_SendCommand(FCEUNPCMD_TEXT,len)) return;
|
|
|
|
if(!FCEUD_SendData(text,len))
|
|
NetError();
|
|
}
|
|
|
|
int FCEUNET_SendFile(uint8 cmd, char *fn)
|
|
{
|
|
uint32 len;
|
|
uLongf clen;
|
|
char *buf, *cbuf;
|
|
FILE *fp;
|
|
struct stat sb;
|
|
|
|
if(!(fp=FCEUD_UTF8fopen(fn,"rb"))) return(0);
|
|
|
|
fstat(fileno(fp),&sb);
|
|
len = sb.st_size;
|
|
buf = malloc(len);
|
|
fread(buf, 1, len, fp);
|
|
fclose(fp);
|
|
|
|
cbuf = malloc(4 + len + len / 1000 + 12);
|
|
FCEU_en32lsb((uint8 *)cbuf, len);
|
|
compress2((Bytef *)(cbuf + 4), &clen, (const Bytef *)buf, len, 7);
|
|
free(buf);
|
|
|
|
//printf("Sending file: %s, %d, %d\n",fn,len,clen);
|
|
|
|
len = clen + 4;
|
|
|
|
#ifdef NETWORK
|
|
if(!FCEUNET_SendCommand(cmd,len))
|
|
{
|
|
free(cbuf);
|
|
return(0);
|
|
}
|
|
if(!FCEUD_SendData(cbuf, len))
|
|
{
|
|
NetError();
|
|
free(cbuf);
|
|
return(0);
|
|
}
|
|
#endif
|
|
free(cbuf);
|
|
|
|
return(1);
|
|
}
|
|
|
|
#ifdef NETWORK
|
|
static FILE *FetchFile(uint32 remlen)
|
|
{
|
|
uint32 clen = remlen;
|
|
char *cbuf;
|
|
uLongf len;
|
|
char *buf;
|
|
FILE *fp;
|
|
char *fn;
|
|
|
|
if(clen > 500000) // Sanity check
|
|
{
|
|
NetError();
|
|
return(0);
|
|
}
|
|
|
|
//printf("Receiving file: %d...\n",clen);
|
|
fn = FCEU_MakeFName(FCEUMKF_NPTEMP,0,0);
|
|
if((fp = fopen(fn,"w+b")))
|
|
{
|
|
cbuf = malloc(clen);
|
|
if(!FCEUD_RecvData(cbuf, clen))
|
|
{
|
|
NetError();
|
|
/*** REMOVED GC V1.0
|
|
unlink(fn);
|
|
REMOVED GC V1.0 ***/
|
|
fclose(fp);
|
|
free(cbuf);
|
|
free(fn);
|
|
return(0);
|
|
}
|
|
|
|
len = FCEU_de32lsb(cbuf);
|
|
if(len > 500000) // Another sanity check
|
|
{
|
|
NetError();
|
|
/*** REMOVED GC V1.0
|
|
unlink(fn);
|
|
REMOVED GC V1.0 ***/
|
|
fclose(fp);
|
|
free(cbuf);
|
|
free(fn);
|
|
return(0);
|
|
}
|
|
buf = malloc(len);
|
|
uncompress(buf, &len, cbuf + 4, clen - 4);
|
|
|
|
fwrite(buf, 1, len, fp);
|
|
free(buf);
|
|
fseek(fp, 0, SEEK_SET);
|
|
/*** REMOVED GC V1.0
|
|
unlink(fn);
|
|
REMOVED GC V1.0 ***/
|
|
free(fn);
|
|
return(fp);
|
|
}
|
|
free(fn);
|
|
return(0);
|
|
}
|
|
#endif
|
|
|
|
void NetplayUpdate(uint8 *joyp)
|
|
{
|
|
static uint8 buf[5]; /* 4 play states, + command/extra byte */
|
|
static uint8 joypb[4];
|
|
|
|
memcpy(joypb,joyp,4);
|
|
|
|
/* This shouldn't happen, but just in case. 0xFF is used as a command escape elsewhere. */
|
|
if(joypb[0] == 0xFF)
|
|
joypb[0] = 0xF;
|
|
#ifdef NETWORK
|
|
if(!netdcount)
|
|
if(!FCEUD_SendData(joypb,numlocal))
|
|
{
|
|
NetError();
|
|
return;
|
|
}
|
|
|
|
if(!netdcount)
|
|
do
|
|
{
|
|
if(!FCEUD_RecvData(buf,5))
|
|
{
|
|
NetError();
|
|
return;
|
|
}
|
|
|
|
switch(buf[4])
|
|
{
|
|
default: FCEU_DoSimpleCommand(buf[4]);break;
|
|
case FCEUNPCMD_TEXT:
|
|
{
|
|
uint8 *tbuf;
|
|
uint32 len = FCEU_de32lsb(buf);
|
|
|
|
if(len > 100000) // Insanity check!
|
|
{
|
|
NetError();
|
|
return;
|
|
}
|
|
tbuf = malloc(len + 1);
|
|
tbuf[len] = 0;
|
|
if(!FCEUD_RecvData(tbuf, len))
|
|
{
|
|
NetError();
|
|
free(tbuf);
|
|
return;
|
|
}
|
|
FCEUD_NetplayText(tbuf);
|
|
free(tbuf);
|
|
}
|
|
break;
|
|
case FCEUNPCMD_SAVESTATE:
|
|
{
|
|
char *fn;
|
|
FILE *fp;
|
|
|
|
/* Send the cheats first, then the save state, since
|
|
there might be a frame or two in between the two sendfile
|
|
commands on the server side.
|
|
*/
|
|
fn = FCEU_MakeFName(FCEUMKF_CHEAT,0,0);
|
|
//if(!
|
|
FCEUNET_SendFile(FCEUNPCMD_LOADCHEATS,fn);
|
|
|
|
// {
|
|
// free(fn);
|
|
// return;
|
|
// }
|
|
free(fn);
|
|
if(!FCEUnetplay) return;
|
|
|
|
fn = FCEU_MakeFName(FCEUMKF_NPTEMP,0,0);
|
|
fp = fopen(fn, "wb");
|
|
if(FCEUSS_SaveFP(fp))
|
|
{
|
|
fclose(fp);
|
|
if(!FCEUNET_SendFile(FCEUNPCMD_LOADSTATE, fn))
|
|
{
|
|
/*** REMOVED GC V1.0
|
|
unlink(fn);
|
|
REMOVED GC V1.0 ***/
|
|
free(fn);
|
|
return;
|
|
}
|
|
/*** REMOVED GC V1.0
|
|
unlink(fn);
|
|
REMOVED GC V1.0 ***/
|
|
free(fn);
|
|
}
|
|
else
|
|
{
|
|
fclose(fp);
|
|
FCEUD_PrintError("File error. (K)ill, (M)aim, (D)estroy? Now!");
|
|
/*** REMOVED GC V1.0
|
|
unlink(fn);
|
|
REMOVED GC V1.0 ***/
|
|
free(fn);
|
|
return;
|
|
}
|
|
|
|
}
|
|
break;
|
|
case FCEUNPCMD_LOADCHEATS:
|
|
{
|
|
FILE *fp = FetchFile(FCEU_de32lsb(buf));
|
|
if(!fp) return;
|
|
FCEU_FlushGameCheats(0,1);
|
|
FCEU_LoadGameCheats(fp);
|
|
}
|
|
break;
|
|
case FCEUNPCMD_LOADSTATE:
|
|
{
|
|
FILE *fp = FetchFile(FCEU_de32lsb(buf));
|
|
if(!fp) return;
|
|
if(FCEUSS_LoadFP(fp))
|
|
{
|
|
fclose(fp);
|
|
FCEU_DispMessage("Remote state loaded.");
|
|
} else FCEUD_PrintError("File error. (K)ill, (M)aim, (D)estroy?");
|
|
}
|
|
break;
|
|
}
|
|
} while(buf[4]);
|
|
#endif
|
|
|
|
netdcount=(netdcount+1)%netdivisor;
|
|
|
|
memcpy(netjoy,buf,4);
|
|
*(uint32 *)joyp=*(uint32 *)netjoy;
|
|
}
|