Mercurial > sdl-ios-xcode
annotate test/checkkeys.c @ 1151:be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
if SDL is built with a non-cdecl calling convention, and it's just generally
bad practice anyhow.
Now programs explicitly call SDL_Quit() where appropriate, wrap SDL_Quit() in
a cdecl function where it can't be avoided, and rely on the parachute where
a crash might have hit the atexit() before (these ARE test programs, after
all!).
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 28 Sep 2005 11:36:20 +0000 |
| parents | 806fcbde0af3 |
| children | 7c7ddaf195bf |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 /* Simple program: Loop, watching keystrokes | |
| 3 Note that you need to call SDL_PollEvent() or SDL_WaitEvent() to | |
| 4 pump the event loop and catch keystrokes. | |
| 5 */ | |
| 6 | |
| 7 #include <stdio.h> | |
| 8 #include <stdlib.h> | |
| 9 #include <string.h> | |
| 10 | |
| 11 #include "SDL.h" | |
| 12 | |
|
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
493
diff
changeset
|
13 /* 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:
493
diff
changeset
|
14 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:
493
diff
changeset
|
15 { |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
493
diff
changeset
|
16 SDL_Quit(); |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
493
diff
changeset
|
17 exit(rc); |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
493
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:
493
diff
changeset
|
19 |
| 0 | 20 static void print_modifiers(void) |
| 21 { | |
| 22 int mod; | |
| 23 printf(" modifiers:"); | |
| 24 mod = SDL_GetModState(); | |
| 25 if(!mod) { | |
| 26 printf(" (none)"); | |
| 27 return; | |
| 28 } | |
| 29 if(mod & KMOD_LSHIFT) | |
| 30 printf(" LSHIFT"); | |
| 31 if(mod & KMOD_RSHIFT) | |
| 32 printf(" RSHIFT"); | |
| 33 if(mod & KMOD_LCTRL) | |
| 34 printf(" LCTRL"); | |
| 35 if(mod & KMOD_RCTRL) | |
| 36 printf(" RCTRL"); | |
| 37 if(mod & KMOD_LALT) | |
| 38 printf(" LALT"); | |
| 39 if(mod & KMOD_RALT) | |
| 40 printf(" RALT"); | |
| 41 if(mod & KMOD_LMETA) | |
| 42 printf(" LMETA"); | |
| 43 if(mod & KMOD_RMETA) | |
| 44 printf(" RMETA"); | |
| 45 if(mod & KMOD_NUM) | |
| 46 printf(" NUM"); | |
| 47 if(mod & KMOD_CAPS) | |
| 48 printf(" CAPS"); | |
| 49 if(mod & KMOD_MODE) | |
| 50 printf(" MODE"); | |
| 51 } | |
| 52 | |
| 53 static void PrintKey(SDL_keysym *sym, int pressed) | |
| 54 { | |
| 55 /* Print the keycode, name and state */ | |
| 56 if ( sym->sym ) { | |
| 57 printf("Key %s: %d-%s ", pressed ? "pressed" : "released", | |
| 58 sym->sym, SDL_GetKeyName(sym->sym)); | |
| 59 } else { | |
| 60 printf("Unknown Key (scancode = %d) %s ", sym->scancode, | |
| 61 pressed ? "pressed" : "released"); | |
| 62 } | |
| 63 | |
| 64 /* Print the translated character, if one exists */ | |
| 65 if ( sym->unicode ) { | |
| 66 /* Is it a control-character? */ | |
| 67 if ( sym->unicode < ' ' ) { | |
| 68 printf(" (^%c)", sym->unicode+'@'); | |
| 69 } else { | |
| 70 #ifdef UNICODE | |
| 71 printf(" (%c)", sym->unicode); | |
| 72 #else | |
| 73 /* This is a Latin-1 program, so only show 8-bits */ | |
| 74 if ( !(sym->unicode & 0xFF00) ) | |
| 75 printf(" (%c)", sym->unicode); | |
| 76 #endif | |
| 77 } | |
| 78 } | |
| 79 print_modifiers(); | |
| 80 printf("\n"); | |
| 81 } | |
| 82 | |
| 83 int main(int argc, char *argv[]) | |
| 84 { | |
| 85 SDL_Event event; | |
| 86 int done; | |
| 473 | 87 Uint32 videoflags; |
| 0 | 88 |
| 89 /* Initialize SDL */ | |
| 90 if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { | |
| 91 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:
493
diff
changeset
|
92 return(1); |
| 0 | 93 } |
| 94 | |
| 473 | 95 videoflags = SDL_SWSURFACE; |
|
493
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
96 while( argc > 1 ) { |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
97 --argc; |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
98 if ( argv[argc] && !strcmp(argv[argc], "-fullscreen") ) { |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
99 videoflags |= SDL_FULLSCREEN; |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
100 } else { |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
101 fprintf(stderr, "Usage: %s [-fullscreen]\n", argv[0]); |
|
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
493
diff
changeset
|
102 quit(1); |
|
493
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
103 } |
| 473 | 104 } |
| 105 | |
| 0 | 106 /* Set 640x480 video mode */ |
| 473 | 107 if ( SDL_SetVideoMode(640, 480, 0, videoflags) == NULL ) { |
| 0 | 108 fprintf(stderr, "Couldn't set 640x480 video mode: %s\n", |
| 109 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:
493
diff
changeset
|
110 quit(2); |
| 0 | 111 } |
| 112 | |
| 113 /* Enable UNICODE translation for keyboard input */ | |
| 114 SDL_EnableUNICODE(1); | |
| 115 | |
| 116 /* Enable auto repeat for keyboard input */ | |
| 117 SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, | |
| 118 SDL_DEFAULT_REPEAT_INTERVAL); | |
| 119 | |
| 120 /* Watch keystrokes */ | |
| 121 done = 0; | |
| 122 while ( !done ) { | |
| 123 /* Check for events */ | |
| 124 SDL_WaitEvent(&event); | |
| 125 switch (event.type) { | |
| 126 case SDL_KEYDOWN: | |
| 127 PrintKey(&event.key.keysym, 1); | |
| 128 break; | |
| 129 case SDL_KEYUP: | |
| 130 PrintKey(&event.key.keysym, 0); | |
| 131 break; | |
| 132 case SDL_MOUSEBUTTONDOWN: | |
| 133 /* Any button press quits the app... */ | |
| 134 case SDL_QUIT: | |
| 135 done = 1; | |
| 136 break; | |
| 137 default: | |
| 138 break; | |
| 139 } | |
| 140 } | |
|
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
493
diff
changeset
|
141 |
|
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
493
diff
changeset
|
142 SDL_Quit(); |
| 0 | 143 return(0); |
| 144 } |