Mercurial > sdl-ios-xcode
annotate test/checkkeys.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 | 7c7ddaf195bf |
| children | 782fd950bd46 c121d94672cb |
| 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); | |
|
1253
7c7ddaf195bf
Implemented ToUnicode() support on Windows 95/98/ME/NT/2000/XP
Sam Lantinga <slouken@libsdl.org>
parents:
1151
diff
changeset
|
76 else |
|
7c7ddaf195bf
Implemented ToUnicode() support on Windows 95/98/ME/NT/2000/XP
Sam Lantinga <slouken@libsdl.org>
parents:
1151
diff
changeset
|
77 printf(" (0x%X)", sym->unicode); |
| 0 | 78 #endif |
| 79 } | |
| 80 } | |
| 81 print_modifiers(); | |
| 82 printf("\n"); | |
| 83 } | |
| 84 | |
| 85 int main(int argc, char *argv[]) | |
| 86 { | |
| 87 SDL_Event event; | |
| 88 int done; | |
| 473 | 89 Uint32 videoflags; |
| 0 | 90 |
| 91 /* Initialize SDL */ | |
| 92 if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { | |
| 93 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
|
94 return(1); |
| 0 | 95 } |
| 96 | |
| 473 | 97 videoflags = SDL_SWSURFACE; |
|
493
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
98 while( argc > 1 ) { |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
99 --argc; |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
100 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
|
101 videoflags |= SDL_FULLSCREEN; |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
102 } else { |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
103 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
|
104 quit(1); |
|
493
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
105 } |
| 473 | 106 } |
| 107 | |
| 0 | 108 /* Set 640x480 video mode */ |
| 473 | 109 if ( SDL_SetVideoMode(640, 480, 0, videoflags) == NULL ) { |
| 0 | 110 fprintf(stderr, "Couldn't set 640x480 video mode: %s\n", |
| 111 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
|
112 quit(2); |
| 0 | 113 } |
| 114 | |
| 115 /* Enable UNICODE translation for keyboard input */ | |
| 116 SDL_EnableUNICODE(1); | |
| 117 | |
| 118 /* Enable auto repeat for keyboard input */ | |
| 119 SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, | |
| 120 SDL_DEFAULT_REPEAT_INTERVAL); | |
| 121 | |
| 122 /* Watch keystrokes */ | |
| 123 done = 0; | |
| 124 while ( !done ) { | |
| 125 /* Check for events */ | |
| 126 SDL_WaitEvent(&event); | |
| 127 switch (event.type) { | |
| 128 case SDL_KEYDOWN: | |
| 129 PrintKey(&event.key.keysym, 1); | |
| 130 break; | |
| 131 case SDL_KEYUP: | |
| 132 PrintKey(&event.key.keysym, 0); | |
| 133 break; | |
| 134 case SDL_MOUSEBUTTONDOWN: | |
| 135 /* Any button press quits the app... */ | |
| 136 case SDL_QUIT: | |
| 137 done = 1; | |
| 138 break; | |
| 139 default: | |
| 140 break; | |
| 141 } | |
| 142 } | |
|
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
|
143 |
|
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
|
144 SDL_Quit(); |
| 0 | 145 return(0); |
| 146 } |