doompanning/linuxdoom-1.10/ib_system/posix.c
oxmox a191a82bdc Squashed 'src/dp_doom/' content from commit 1909924
git-subtree-dir: src/dp_doom
git-subtree-split: 190992421c7c643afc99d7f7c511c162f65bea85
2023-02-19 01:52:56 +01:00

84 lines
1.6 KiB
C

// 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);
}