103 lines
2.0 KiB
C++
103 lines
2.0 KiB
C++
|
/* FCE Ultra Network Play Server
|
||
|
|
*
|
||
|
|
* Copyright notice for this file:
|
||
|
|
* Copyright (C) 2004 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
#include <sys/time.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include "types.h"
|
||
|
|
#include "throttle.h"
|
||
|
|
|
||
|
|
#ifdef TODO
|
||
|
|
THROTTLE *MakeThrottle(uint32 fps)
|
||
|
|
{
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Returns 1 if it's time to run, 0 if it's not time yet. */
|
||
|
|
int TestThrottle(THROTTLE *throt)
|
||
|
|
{
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Pass it a pointer to an array of THROTTLE structs */
|
||
|
|
/* It will check */
|
||
|
|
void DoAllThrottles(THROTTLE *throt)
|
||
|
|
{
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
void KillThrottle(THROTTLE *throt)
|
||
|
|
{
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static uint64 tfreq;
|
||
|
|
static uint64 desiredfps;
|
||
|
|
|
||
|
|
int32 FCEUI_GetDesiredFPS(void)
|
||
|
|
{
|
||
|
|
//if(PAL)
|
||
|
|
// return(838977920); // ~50.007
|
||
|
|
//else
|
||
|
|
return(1008307711); // ~60.1
|
||
|
|
}
|
||
|
|
|
||
|
|
void RefreshThrottleFPS(int divooder)
|
||
|
|
{
|
||
|
|
desiredfps=(FCEUI_GetDesiredFPS() / divooder)>>8;
|
||
|
|
tfreq=1000000;
|
||
|
|
tfreq<<=16; /* Adjustment for fps returned from FCEUI_GetDesiredFPS(). */
|
||
|
|
}
|
||
|
|
|
||
|
|
static uint64 GetCurTime(void)
|
||
|
|
{
|
||
|
|
uint64 ret;
|
||
|
|
struct timeval tv;
|
||
|
|
|
||
|
|
gettimeofday(&tv,0);
|
||
|
|
ret=(uint64)tv.tv_sec*1000000;
|
||
|
|
ret+=tv.tv_usec;
|
||
|
|
return(ret);
|
||
|
|
}
|
||
|
|
|
||
|
|
void SpeedThrottle(void)
|
||
|
|
{
|
||
|
|
static uint64 ttime,ltime;
|
||
|
|
|
||
|
|
waiter:
|
||
|
|
ttime=GetCurTime();
|
||
|
|
|
||
|
|
if( (ttime-ltime) < (tfreq/desiredfps) )
|
||
|
|
{
|
||
|
|
usleep(1000);
|
||
|
|
goto waiter;
|
||
|
|
}
|
||
|
|
if( (ttime-ltime) >= (tfreq*4/desiredfps))
|
||
|
|
ltime=ttime;
|
||
|
|
else
|
||
|
|
ltime+=tfreq/desiredfps;
|
||
|
|
}
|
||
|
|
|