Mercurial > sdl-ios-xcode
annotate test/testtimer.c @ 1012:f14e3059e138
Date: Mon, 13 Dec 2004 21:28:18 -0500
From: Jonathan Atkins
Subject: [SDL] SDL_SaveBMP width bugfix
this fixes the pitch versus width difference that can happen
(especially for 8bit and 24bit (with the exact RGBAmasks) surfaces)
when you use SDL_SaveBMP. The problem was the pitch was used
instead of the width, which in some cases is much wider than the
screen area you really want to save...making for ugly crud on the
saved image borders.
This code has been tested with & without pitch overhangs...and
with the right masks for 24 bit surfaces.
I tested 8,15,16,24,32-0RGB,32-RGBA(with no SDL_SRCALPHA flag).
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 14 Dec 2004 06:20:49 +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 } |