src/timer/SDL_timer_c.h
author Sam Lantinga <slouken@lokigames.com>
Thu, 26 Apr 2001 16:45:43 +0000
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/*
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    SDL - Simple DirectMedia Layer
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    Copyright (C) 1997, 1998  Sam Lantinga
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    This library is free software; you can redistribute it and/or
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    modify it under the terms of the GNU Library General Public
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    License as published by the Free Software Foundation; either
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    version 2 of the License, or (at your option) any later version.
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    This library is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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    Library General Public License for more details.
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    You should have received a copy of the GNU Library General Public
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    License along with this library; if not, write to the Free
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    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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    Sam Lantinga
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    5635-34 Springhouse Dr.
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    Pleasanton, CA 94588 (USA)
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    slouken@devolution.com
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*/
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#ifdef SAVE_RCSID
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static char rcsid =
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 "@(#) $Id$";
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#endif
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/* Useful functions and variables from SDL_timer.c */
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#include "SDL_timer.h"
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#define ROUND_RESOLUTION(X)	\
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	(((X+TIMER_RESOLUTION-1)/TIMER_RESOLUTION)*TIMER_RESOLUTION)
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extern int SDL_timer_started;
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extern int SDL_timer_running;
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/* Data to handle a single periodic alarm */
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extern Uint32 SDL_alarm_interval;
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extern SDL_TimerCallback SDL_alarm_callback;
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/* Set whether or not the timer should use a thread.
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   This should be called while the timer subsystem is running.
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*/
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extern int SDL_SetTimerThreaded(int value);
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extern int SDL_TimerInit(void);
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extern void SDL_TimerQuit(void);
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/* This function is called from the SDL event thread if it is available */
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extern void SDL_ThreadedTimerCheck(void);