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annotate test/testtimer.c @ 1650:ee4f2d77206f
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| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 22 Apr 2006 19:50:23 +0000 |
| parents | d5298e8f22b3 |
| children | 14717b52abc0 |
| 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 { | |
|
1615
d5298e8f22b3
Ugh, more 64-bit cleanup
Sam Lantinga <slouken@libsdl.org>
parents:
1500
diff
changeset
|
23 printf("Timer %d : param = %d\n", interval, (int)(uintptr_t)param); |
| 0 | 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 ) { | |
|
1484
b2b476a4a73c
Added documentation on how to build a completely useless SDL library. :)
Sam Lantinga <slouken@libsdl.org>
parents:
1151
diff
changeset
|
33 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError()); |
|
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
766
diff
changeset
|
34 return(1); |
| 0 | 35 } |
| 36 | |
| 37 /* Start the timer */ | |
| 38 desired = 0; | |
| 39 if ( argv[1] ) { | |
| 40 desired = atoi(argv[1]); | |
| 41 } | |
| 42 if ( desired == 0 ) { | |
| 43 desired = DEFAULT_RESOLUTION; | |
| 44 } | |
| 45 SDL_SetTimer(desired, ticktock); | |
| 46 | |
| 47 /* Wait 10 seconds */ | |
| 48 printf("Waiting 10 seconds\n"); | |
| 49 SDL_Delay(10*1000); | |
| 50 | |
| 51 /* Stop the timer */ | |
| 52 SDL_SetTimer(0, NULL); | |
| 53 | |
| 54 /* Print the results */ | |
| 55 if ( ticks ) { | |
| 56 fprintf(stderr, | |
| 57 "Timer resolution: desired = %d ms, actual = %f ms\n", | |
| 58 desired, (double)(10*1000)/ticks); | |
| 59 } | |
| 60 | |
| 61 /* Test multiple timers */ | |
| 62 printf("Testing multiple timers...\n"); | |
| 63 t1 = SDL_AddTimer(100, callback, (void*)1); | |
| 64 if(!t1) | |
|
766
ed57c876700d
Date: Wed, 26 Nov 2003 01:52:02 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
65 fprintf(stderr,"Could not create timer 1: %s\n", SDL_GetError()); |
| 0 | 66 t2 = SDL_AddTimer(50, callback, (void*)2); |
| 67 if(!t2) | |
|
766
ed57c876700d
Date: Wed, 26 Nov 2003 01:52:02 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
68 fprintf(stderr,"Could not create timer 2: %s\n", SDL_GetError()); |
| 0 | 69 t3 = SDL_AddTimer(233, callback, (void*)3); |
| 70 if(!t3) | |
|
766
ed57c876700d
Date: Wed, 26 Nov 2003 01:52:02 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
71 fprintf(stderr,"Could not create timer 3: %s\n", SDL_GetError()); |
| 0 | 72 |
| 73 /* Wait 10 seconds */ | |
| 74 printf("Waiting 10 seconds\n"); | |
| 75 SDL_Delay(10*1000); | |
| 76 | |
| 77 printf("Removing timer 1 and waiting 5 more seconds\n"); | |
| 78 SDL_RemoveTimer(t1); | |
| 79 | |
| 80 SDL_Delay(5*1000); | |
| 81 | |
| 82 SDL_RemoveTimer(t2); | |
| 83 SDL_RemoveTimer(t3); | |
| 84 | |
|
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
766
diff
changeset
|
85 SDL_Quit(); |
| 0 | 86 return(0); |
| 87 } |