Mercurial > sdl-ios-xcode
view test/testtimer.c @ 1879:cb232e63552c
Default the X11 dynamically loading on if the OS loader loads libraries
with their private symbols hidden. If that isn't the case, and someone
tries to enable it anyway, spit out a warning and don't let them do it.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Fri, 23 Jun 2006 08:39:05 +0000 |
parents | 290b5baf2fca |
children | 782fd950bd46 c121d94672cb |
line wrap: on
line source
/* Test program to check the resolution of the SDL timer on the current platform */ #include <stdlib.h> #include <stdio.h> #include "SDL.h" #define DEFAULT_RESOLUTION 1 static int ticks = 0; static Uint32 SDLCALL ticktock(Uint32 interval) { ++ticks; return(interval); } static Uint32 SDLCALL callback(Uint32 interval, void *param) { printf("Timer %d : param = %d\n", interval, (int)(uintptr_t)param); return interval; } int main(int argc, char *argv[]) { int desired; SDL_TimerID t1, t2, t3; if ( SDL_Init(SDL_INIT_TIMER) < 0 ) { fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError()); return(1); } /* Start the timer */ desired = 0; if ( argv[1] ) { desired = atoi(argv[1]); } if ( desired == 0 ) { desired = DEFAULT_RESOLUTION; } SDL_SetTimer(desired, ticktock); /* Wait 10 seconds */ printf("Waiting 10 seconds\n"); SDL_Delay(10*1000); /* Stop the timer */ SDL_SetTimer(0, NULL); /* Print the results */ if ( ticks ) { fprintf(stderr, "Timer resolution: desired = %d ms, actual = %f ms\n", desired, (double)(10*1000)/ticks); } /* Test multiple timers */ printf("Testing multiple timers...\n"); t1 = SDL_AddTimer(100, callback, (void*)1); if(!t1) fprintf(stderr,"Could not create timer 1: %s\n", SDL_GetError()); t2 = SDL_AddTimer(50, callback, (void*)2); if(!t2) fprintf(stderr,"Could not create timer 2: %s\n", SDL_GetError()); t3 = SDL_AddTimer(233, callback, (void*)3); if(!t3) fprintf(stderr,"Could not create timer 3: %s\n", SDL_GetError()); /* Wait 10 seconds */ printf("Waiting 10 seconds\n"); SDL_Delay(10*1000); printf("Removing timer 1 and waiting 5 more seconds\n"); SDL_RemoveTimer(t1); SDL_Delay(5*1000); SDL_RemoveTimer(t2); SDL_RemoveTimer(t3); SDL_Quit(); return(0); }