FUNCTIONS

1. ROUND_RESOLUTION

   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 */
  25 #ifdef SAVE_RCSID
  26 static char rcsid =
  27  "@(#) $Id: SDL_timer_c.h,v 1.1.2.1 2000/01/06 04:36:37 megastep Exp $";
  28 #endif
  30 /* Useful functions and variables from SDL_timer.c */
  31 #include "SDL_timer.h"
  33 #define ROUND_RESOLUTION(X)     \
     /* [<][>][^][v][top][bottom][index][help] */
  34         (((X+TIMER_RESOLUTION-1)/TIMER_RESOLUTION)*TIMER_RESOLUTION)
  36 extern int SDL_timer_started;
  37 extern int SDL_timer_running;
  39 /* Data to handle a single periodic alarm */
  40 extern Uint32 SDL_alarm_interval;
  41 extern SDL_TimerCallback SDL_alarm_callback;
  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);
  48 extern int SDL_TimerInit(void);
  49 extern void SDL_TimerQuit(void);
  51 /* This function is called from the SDL event thread if it is available */
  52 extern void SDL_ThreadedTimerCheck(void);