1 /* 2 SDL - Simple DirectMedia Layer 3 Copyright (C) 1997-2012 Sam Lantinga 4 5 This library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 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 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with this library; if not, write to the Free Software 17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 19 Sam Lantinga 20 slouken (at) libsdl.org 21 */ 22 #include "SDL_config.h" 23 24 /* Useful functions and variables from SDL_timer.c */ 25 #include "SDL_timer.h" 26 27 #define ROUND_RESOLUTION(X) \ 28 (((X+TIMER_RESOLUTION-1)/TIMER_RESOLUTION)*TIMER_RESOLUTION) 29 30 extern int SDL_timer_started; 31 extern int SDL_timer_running; 32 33 /* Data to handle a single periodic alarm */ 34 extern Uint32 SDL_alarm_interval; 35 extern SDL_TimerCallback SDL_alarm_callback; 36 37 /* Set whether or not the timer should use a thread. 38 This should be called while the timer subsystem is running. 39 */ 40 extern int SDL_SetTimerThreaded(int value); 41 42 extern int SDL_TimerInit(void); 43 extern void SDL_TimerQuit(void); 44 45 /* This function is called from the SDL event thread if it is available */ 46 extern void SDL_ThreadedTimerCheck(void); 47
