Mercurial > sdl-ios-xcode
annotate test/checkkeys.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 | 806fcbde0af3 |
| children | be9c9c8f6d53 |
| 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 | |
| 13 static void print_modifiers(void) | |
| 14 { | |
| 15 int mod; | |
| 16 printf(" modifiers:"); | |
| 17 mod = SDL_GetModState(); | |
| 18 if(!mod) { | |
| 19 printf(" (none)"); | |
| 20 return; | |
| 21 } | |
| 22 if(mod & KMOD_LSHIFT) | |
| 23 printf(" LSHIFT"); | |
| 24 if(mod & KMOD_RSHIFT) | |
| 25 printf(" RSHIFT"); | |
| 26 if(mod & KMOD_LCTRL) | |
| 27 printf(" LCTRL"); | |
| 28 if(mod & KMOD_RCTRL) | |
| 29 printf(" RCTRL"); | |
| 30 if(mod & KMOD_LALT) | |
| 31 printf(" LALT"); | |
| 32 if(mod & KMOD_RALT) | |
| 33 printf(" RALT"); | |
| 34 if(mod & KMOD_LMETA) | |
| 35 printf(" LMETA"); | |
| 36 if(mod & KMOD_RMETA) | |
| 37 printf(" RMETA"); | |
| 38 if(mod & KMOD_NUM) | |
| 39 printf(" NUM"); | |
| 40 if(mod & KMOD_CAPS) | |
| 41 printf(" CAPS"); | |
| 42 if(mod & KMOD_MODE) | |
| 43 printf(" MODE"); | |
| 44 } | |
| 45 | |
| 46 static void PrintKey(SDL_keysym *sym, int pressed) | |
| 47 { | |
| 48 /* Print the keycode, name and state */ | |
| 49 if ( sym->sym ) { | |
| 50 printf("Key %s: %d-%s ", pressed ? "pressed" : "released", | |
| 51 sym->sym, SDL_GetKeyName(sym->sym)); | |
| 52 } else { | |
| 53 printf("Unknown Key (scancode = %d) %s ", sym->scancode, | |
| 54 pressed ? "pressed" : "released"); | |
| 55 } | |
| 56 | |
| 57 /* Print the translated character, if one exists */ | |
| 58 if ( sym->unicode ) { | |
| 59 /* Is it a control-character? */ | |
| 60 if ( sym->unicode < ' ' ) { | |
| 61 printf(" (^%c)", sym->unicode+'@'); | |
| 62 } else { | |
| 63 #ifdef UNICODE | |
| 64 printf(" (%c)", sym->unicode); | |
| 65 #else | |
| 66 /* This is a Latin-1 program, so only show 8-bits */ | |
| 67 if ( !(sym->unicode & 0xFF00) ) | |
| 68 printf(" (%c)", sym->unicode); | |
| 69 #endif | |
| 70 } | |
| 71 } | |
| 72 print_modifiers(); | |
| 73 printf("\n"); | |
| 74 } | |
| 75 | |
| 76 int main(int argc, char *argv[]) | |
| 77 { | |
| 78 SDL_Event event; | |
| 79 int done; | |
| 473 | 80 Uint32 videoflags; |
| 0 | 81 |
| 82 /* Initialize SDL */ | |
| 83 if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { | |
| 84 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); | |
| 85 exit(1); | |
| 86 } | |
| 87 atexit(SDL_Quit); | |
| 88 | |
| 473 | 89 videoflags = SDL_SWSURFACE; |
|
493
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
90 while( argc > 1 ) { |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
91 --argc; |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
92 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
|
93 videoflags |= SDL_FULLSCREEN; |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
94 } else { |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
95 fprintf(stderr, "Usage: %s [-fullscreen]\n", argv[0]); |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
96 exit(1); |
|
806fcbde0af3
Fixed a crash bug in checkkeys.c (thanks John!)
Sam Lantinga <slouken@libsdl.org>
parents:
473
diff
changeset
|
97 } |
| 473 | 98 } |
| 99 | |
| 0 | 100 /* Set 640x480 video mode */ |
| 473 | 101 if ( SDL_SetVideoMode(640, 480, 0, videoflags) == NULL ) { |
| 0 | 102 fprintf(stderr, "Couldn't set 640x480 video mode: %s\n", |
| 103 SDL_GetError()); | |
| 104 exit(2); | |
| 105 } | |
| 106 | |
| 107 /* Enable UNICODE translation for keyboard input */ | |
| 108 SDL_EnableUNICODE(1); | |
| 109 | |
| 110 /* Enable auto repeat for keyboard input */ | |
| 111 SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, | |
| 112 SDL_DEFAULT_REPEAT_INTERVAL); | |
| 113 | |
| 114 /* Watch keystrokes */ | |
| 115 done = 0; | |
| 116 while ( !done ) { | |
| 117 /* Check for events */ | |
| 118 SDL_WaitEvent(&event); | |
| 119 switch (event.type) { | |
| 120 case SDL_KEYDOWN: | |
| 121 PrintKey(&event.key.keysym, 1); | |
| 122 break; | |
| 123 case SDL_KEYUP: | |
| 124 PrintKey(&event.key.keysym, 0); | |
| 125 break; | |
| 126 case SDL_MOUSEBUTTONDOWN: | |
| 127 /* Any button press quits the app... */ | |
| 128 case SDL_QUIT: | |
| 129 done = 1; | |
| 130 break; | |
| 131 default: | |
| 132 break; | |
| 133 } | |
| 134 } | |
| 135 return(0); | |
| 136 } |