// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// 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.
//
// $Log:$
//
// DESCRIPTION:
//
//-----------------------------------------------------------------------------

#include <sys/time.h>
#include <unistd.h>

#include "../doomdef.h"

#include "../ib_system.h"


//
// IB_GetTime
// returns time in 1/70th second tics
//
int  IB_GetTime (void)
{
    struct timeval	tp;
    struct timezone	tzp;
    int			newtics;
    static int		basetime=0;
  
    gettimeofday(&tp, &tzp);
    if (!basetime)
	basetime = tp.tv_sec;
    newtics = (tp.tv_sec-basetime)*TICRATE + tp.tv_usec*TICRATE/1000000;
    return newtics;
}


//
// IB_Init
//
void IB_Init (void)
{
}


//
// IB_Quit
//
void IB_Quit (void)
{
}


void IB_WaitVBL(int count)
{
#ifdef SGI
    sginap(1);                                           
#else
#ifdef SUN
    sleep(0);
#else
    usleep (count * (1000000/70) );                                
#endif
#endif
}


void IB_Sleep(void)
{
    usleep(1);
}