Mercurial > sdl-ios-xcode
annotate test/testtimer.c @ 804:b2fda076b02e
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| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 10 Feb 2004 15:31:35 +0000 |
| parents | ed57c876700d |
| children | be9c9c8f6d53 |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 /* Test program to check the resolution of the SDL timer on the current | |
| 3 platform | |
| 4 */ | |
| 5 | |
| 6 #include <stdlib.h> | |
| 7 #include <stdio.h> | |
| 8 | |
| 9 #include "SDL.h" | |
| 10 | |
| 11 #define DEFAULT_RESOLUTION 1 | |
| 12 | |
| 13 static int ticks = 0; | |
| 14 | |
| 15 static Uint32 ticktock(Uint32 interval) | |
| 16 { | |
| 17 ++ticks; | |
| 18 return(interval); | |
| 19 } | |
| 20 | |
| 21 static Uint32 callback(Uint32 interval, void *param) | |
| 22 { | |
| 23 printf("Timer %d : param = %d\n", interval, (int) param); | |
| 24 return interval; | |
| 25 } | |
| 26 | |
| 27 int main(int argc, char *argv[]) | |
| 28 { | |
| 29 int desired; | |
| 30 SDL_TimerID t1, t2, t3; | |
| 31 | |
| 32 if ( SDL_Init(SDL_INIT_TIMER) < 0 ) { | |
| 33 fprintf(stderr, "Couldn't load SDL: %s\n", SDL_GetError()); | |
| 34 exit(1); | |
| 35 } | |
| 36 atexit(SDL_Quit); | |
| 37 | |
| 38 /* Start the timer */ | |
| 39 desired = 0; | |
| 40 if ( argv[1] ) { | |
| 41 desired = atoi(argv[1]); | |
| 42 } | |
| 43 if ( desired == 0 ) { | |
| 44 desired = DEFAULT_RESOLUTION; | |
| 45 } | |
| 46 SDL_SetTimer(desired, ticktock); | |
| 47 | |
| 48 /* Wait 10 seconds */ | |
| 49 printf("Waiting 10 seconds\n"); | |
| 50 SDL_Delay(10*1000); | |
| 51 | |
| 52 /* Stop the timer */ | |
| 53 SDL_SetTimer(0, NULL); | |
| 54 | |
| 55 /* Print the results */ | |
| 56 if ( ticks ) { | |
| 57 fprintf(stderr, | |
| 58 "Timer resolution: desired = %d ms, actual = %f ms\n", | |
| 59 desired, (double)(10*1000)/ticks); | |
| 60 } | |
| 61 | |
| 62 /* Test multiple timers */ | |
| 63 printf("Testing multiple timers...\n"); | |
| 64 t1 = SDL_AddTimer(100, callback, (void*)1); | |
| 65 if(!t1) | |
|
766
ed57c876700d
Date: Wed, 26 Nov 2003 01:52:02 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
66 fprintf(stderr,"Could not create timer 1: %s\n", SDL_GetError()); |
| 0 | 67 t2 = SDL_AddTimer(50, callback, (void*)2); |
| 68 if(!t2) | |
|
766
ed57c876700d
Date: Wed, 26 Nov 2003 01:52:02 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
69 fprintf(stderr,"Could not create timer 2: %s\n", SDL_GetError()); |
| 0 | 70 t3 = SDL_AddTimer(233, callback, (void*)3); |
| 71 if(!t3) | |
|
766
ed57c876700d
Date: Wed, 26 Nov 2003 01:52:02 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
72 fprintf(stderr,"Could not create timer 3: %s\n", SDL_GetError()); |
| 0 | 73 |
| 74 /* Wait 10 seconds */ | |
| 75 printf("Waiting 10 seconds\n"); | |
| 76 SDL_Delay(10*1000); | |
| 77 | |
| 78 printf("Removing timer 1 and waiting 5 more seconds\n"); | |
| 79 SDL_RemoveTimer(t1); | |
| 80 | |
| 81 SDL_Delay(5*1000); | |
| 82 | |
| 83 SDL_RemoveTimer(t2); | |
| 84 SDL_RemoveTimer(t3); | |
| 85 | |
| 86 return(0); | |
| 87 } |