Mercurial > sdl-ios-xcode
annotate test/testtimer.c @ 1538:b1f8c14f0df5
*** empty log message ***
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 15 Mar 2006 03:50:34 +0000 |
| parents | f58c88a4dff5 |
| children | d5298e8f22b3 |
| 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 | |
|
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
|
15 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
|
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
|
16 static void quit(int rc) |
|
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
|
17 { |
|
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
|
18 SDL_Quit(); |
|
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
|
19 exit(rc); |
|
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
|
20 } |
|
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
|
21 |
| 0 | 22 static Uint32 ticktock(Uint32 interval) |
| 23 { | |
| 24 ++ticks; | |
| 25 return(interval); | |
| 26 } | |
| 27 | |
| 28 static Uint32 callback(Uint32 interval, void *param) | |
| 29 { | |
| 1500 | 30 printf("Timer %d : param = %d\n", interval, (uintptr_t)param); |
| 0 | 31 return interval; |
| 32 } | |
| 33 | |
| 34 int main(int argc, char *argv[]) | |
| 35 { | |
| 36 int desired; | |
| 37 SDL_TimerID t1, t2, t3; | |
| 38 | |
| 39 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
|
40 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
|
41 return(1); |
| 0 | 42 } |
| 43 | |
| 44 /* Start the timer */ | |
| 45 desired = 0; | |
| 46 if ( argv[1] ) { | |
| 47 desired = atoi(argv[1]); | |
| 48 } | |
| 49 if ( desired == 0 ) { | |
| 50 desired = DEFAULT_RESOLUTION; | |
| 51 } | |
| 52 SDL_SetTimer(desired, ticktock); | |
| 53 | |
| 54 /* Wait 10 seconds */ | |
| 55 printf("Waiting 10 seconds\n"); | |
| 56 SDL_Delay(10*1000); | |
| 57 | |
| 58 /* Stop the timer */ | |
| 59 SDL_SetTimer(0, NULL); | |
| 60 | |
| 61 /* Print the results */ | |
| 62 if ( ticks ) { | |
| 63 fprintf(stderr, | |
| 64 "Timer resolution: desired = %d ms, actual = %f ms\n", | |
| 65 desired, (double)(10*1000)/ticks); | |
| 66 } | |
| 67 | |
| 68 /* Test multiple timers */ | |
| 69 printf("Testing multiple timers...\n"); | |
| 70 t1 = SDL_AddTimer(100, callback, (void*)1); | |
| 71 if(!t1) | |
|
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 1: %s\n", SDL_GetError()); |
| 0 | 73 t2 = SDL_AddTimer(50, callback, (void*)2); |
| 74 if(!t2) | |
|
766
ed57c876700d
Date: Wed, 26 Nov 2003 01:52:02 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
75 fprintf(stderr,"Could not create timer 2: %s\n", SDL_GetError()); |
| 0 | 76 t3 = SDL_AddTimer(233, callback, (void*)3); |
| 77 if(!t3) | |
|
766
ed57c876700d
Date: Wed, 26 Nov 2003 01:52:02 +0800
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
78 fprintf(stderr,"Could not create timer 3: %s\n", SDL_GetError()); |
| 0 | 79 |
| 80 /* Wait 10 seconds */ | |
| 81 printf("Waiting 10 seconds\n"); | |
| 82 SDL_Delay(10*1000); | |
| 83 | |
| 84 printf("Removing timer 1 and waiting 5 more seconds\n"); | |
| 85 SDL_RemoveTimer(t1); | |
| 86 | |
| 87 SDL_Delay(5*1000); | |
| 88 | |
| 89 SDL_RemoveTimer(t2); | |
| 90 SDL_RemoveTimer(t3); | |
| 91 | |
|
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
|
92 SDL_Quit(); |
| 0 | 93 return(0); |
| 94 } |