diff options
Diffstat (limited to 'distrib/sdl-1.2.15/test/testtimer.c')
-rw-r--r-- | distrib/sdl-1.2.15/test/testtimer.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/test/testtimer.c b/distrib/sdl-1.2.15/test/testtimer.c new file mode 100644 index 0000000..95608c1 --- /dev/null +++ b/distrib/sdl-1.2.15/test/testtimer.c @@ -0,0 +1,87 @@ + +/* 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); +} |