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comparison src/timer/SDL_timer_c.h @ 0:74212992fb08

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Initial revision
author Sam Lantinga <slouken@lokigames.com>
date Thu, 26 Apr 2001 16:45:43 +0000
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children e8157fcb3114
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1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997, 1998 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public
7 License as published by the Free Software Foundation; either
8 version 2 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with this library; if not, write to the Free
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 Sam Lantinga
20 5635-34 Springhouse Dr.
21 Pleasanton, CA 94588 (USA)
22 slouken@devolution.com
23 */
24
25 #ifdef SAVE_RCSID
26 static char rcsid =
27 "@(#) $Id$";
28 #endif
29
30 /* Useful functions and variables from SDL_timer.c */
31 #include "SDL_timer.h"
32
33 #define ROUND_RESOLUTION(X) \
34 (((X+TIMER_RESOLUTION-1)/TIMER_RESOLUTION)*TIMER_RESOLUTION)
35
36 extern int SDL_timer_started;
37 extern int SDL_timer_running;
38
39 /* Data to handle a single periodic alarm */
40 extern Uint32 SDL_alarm_interval;
41 extern SDL_TimerCallback SDL_alarm_callback;
42
43 /* Set whether or not the timer should use a thread.
44 This should be called while the timer subsystem is running.
45 */
46 extern int SDL_SetTimerThreaded(int value);
47
48 extern int SDL_TimerInit(void);
49 extern void SDL_TimerQuit(void);
50
51 /* This function is called from the SDL event thread if it is available */
52 extern void SDL_ThreadedTimerCheck(void);