Mercurial > sdl-ios-xcode
annotate test/torturethread.c @ 1257:448a9a64537b
[PATCH] SDL_GetVideoMode() does not find best mode, part 2
Following commit 1.51, I come accross a problem when SDL must choose between
several video modes that could suit the one asked.
If I ask 320x240 with this list:
768x480 768x240 640x400 640x200 384x480 384x240 320x400 320x200
The smallest selectables modes are 384x240 and 320x400. And SDL choose the later
in this list, but 384x240 is more suitable. So I added a check to compare
the pixel count (surface) of modes, and select the one which has the smallest
pixel count.
In my example, 384x240 has 92160 pixels, and 320x400 has 128000 pixels. So now
SDL will choose 384x240 for the asked 320x240 mode.
| author | Patrice Mandin <patmandin@gmail.com> |
|---|---|
| date | Thu, 19 Jan 2006 21:28:52 +0000 |
| parents | d93862a3d821 |
| children | 1dd8bf30a109 |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 /* Simple test of the SDL threading code */ | |
| 3 | |
| 4 #include <stdio.h> | |
| 5 #include <stdlib.h> | |
| 6 #include <signal.h> | |
| 7 #include <string.h> | |
| 8 | |
| 9 #include "SDL.h" | |
| 10 #include "SDL_thread.h" | |
| 11 | |
| 12 #define NUMTHREADS 10 | |
| 13 | |
| 14 static char volatile time_for_threads_to_die[NUMTHREADS]; | |
| 15 | |
|
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
16 /* 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:
0
diff
changeset
|
17 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:
0
diff
changeset
|
18 { |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
19 SDL_Quit(); |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
20 exit(rc); |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
21 } |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
22 |
| 0 | 23 int SubThreadFunc(void *data) { |
| 24 while(! *(int volatile *)data) { | |
|
1154
d93862a3d821
Fixed compiler warnings in Watcom C.
Ryan C. Gordon <icculus@icculus.org>
parents:
1151
diff
changeset
|
25 ; /*SDL_Delay(10);*/ /* do nothing */ |
| 0 | 26 } |
| 27 return 0; | |
| 28 } | |
| 29 | |
| 30 int ThreadFunc(void *data) { | |
| 31 SDL_Thread *sub_threads[NUMTHREADS]; | |
| 32 int flags[NUMTHREADS]; | |
| 33 int i; | |
| 34 int tid = (int ) data; | |
| 35 | |
| 36 fprintf(stderr, "Creating Thread %d\n", tid); | |
| 37 | |
| 38 for(i = 0; i < NUMTHREADS; i++) { | |
| 39 flags[i] = 0; | |
| 40 sub_threads[i] = SDL_CreateThread(SubThreadFunc, &flags[i]); | |
| 41 } | |
| 42 | |
| 43 printf("Thread '%d' waiting for signal\n", tid); | |
| 44 while(time_for_threads_to_die[tid] != 1) { | |
| 45 ; /* do nothing */ | |
| 46 } | |
| 47 | |
| 48 printf("Thread '%d' sending signals to subthreads\n", tid); | |
| 49 for(i = 0; i < NUMTHREADS; i++) { | |
| 50 flags[i] = 1; | |
| 51 SDL_WaitThread(sub_threads[i], NULL); | |
| 52 } | |
| 53 | |
| 54 printf("Thread '%d' exiting!\n", tid); | |
| 55 | |
| 56 return 0; | |
| 57 } | |
| 58 | |
| 59 int main(int argc, char *argv[]) | |
| 60 { | |
| 61 SDL_Thread *threads[NUMTHREADS]; | |
| 62 int i; | |
| 63 | |
| 64 /* Load the SDL library */ | |
| 65 if ( SDL_Init(0) < 0 ) { | |
| 66 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:
0
diff
changeset
|
67 return(1); |
| 0 | 68 } |
| 69 | |
| 70 signal(SIGSEGV, SIG_DFL); | |
| 71 for(i = 0; i < NUMTHREADS; i++) { | |
| 72 time_for_threads_to_die[i] = 0; | |
| 73 threads[i] = SDL_CreateThread(ThreadFunc, (void *) i); | |
| 74 | |
| 75 if ( threads[i] == NULL ) { | |
| 76 fprintf(stderr, | |
| 77 "Couldn't create thread: %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:
0
diff
changeset
|
78 quit(1); |
| 0 | 79 } |
| 80 } | |
| 81 | |
| 82 for(i = 0; i < NUMTHREADS; i++) { | |
| 83 time_for_threads_to_die[i] = 1; | |
| 84 } | |
| 85 | |
| 86 for(i = NUMTHREADS-1; i >= 0; --i) { | |
| 87 SDL_WaitThread(threads[i], NULL); | |
| 88 } | |
|
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
89 SDL_Quit(); |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
0
diff
changeset
|
90 return(0); |
| 0 | 91 } |