| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 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@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); |