Mercurial > sdl-ios-xcode
annotate test/testwm.c @ 1199:2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
To: sdl@libsdl.org
Date: Sun, 11 Dec 2005 22:57:37 -0500
Subject: [SDL] exec stack in libsdl update
i posted back in September a patch to remove executable stacks:
http://www.devolution.com/pipermail/sdl/2005-September/070626.html
later in November, a similar patch was merged it seems:
http://www.libsdl.org/cgi/cvsweb.cgi/SDL12/src/hermes/mmx_main.asm
however, this lacks the additional output format checks that i posted in my
patch ... this isnt a problem if the hermes asm code is only ever used to
produce ELF objects, but if this is not true, then the additional checks in
my original patch will need to be merged
-mike
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Mon, 12 Dec 2005 09:13:12 +0000 |
parents | be9c9c8f6d53 |
children | 08e3393e9ffb |
rev | line source |
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0 | 1 |
2 /* Test out the window manager interaction functions */ | |
3 | |
4 #include <stdio.h> | |
5 #include <stdlib.h> | |
6 #include <string.h> | |
7 | |
8 #include "SDL.h" | |
9 | |
10 /* Is the cursor visible? */ | |
11 static int visible = 1; | |
12 | |
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13 static Uint8 video_bpp; |
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14 static Uint32 video_flags; |
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15 |
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16 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
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17 static void quit(int rc) |
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18 { |
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19 SDL_Quit(); |
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20 exit(rc); |
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21 } |
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22 |
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23 int SetVideoMode(int w, int h) |
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24 { |
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25 SDL_Surface *screen; |
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26 int i; |
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27 Uint8 *buffer; |
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28 SDL_Color palette[256]; |
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29 |
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30 screen = SDL_SetVideoMode(w, h, video_bpp, video_flags); |
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31 if ( screen == NULL ) { |
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32 fprintf(stderr, "Couldn't set %dx%dx%d video mode: %s\n", |
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33 w, h, video_bpp, SDL_GetError()); |
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34 return(-1); |
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35 } |
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36 printf("Running in %s mode\n", screen->flags & SDL_FULLSCREEN ? |
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37 "fullscreen" : "windowed"); |
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38 |
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39 /* Set the surface pixels and refresh! */ |
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40 for ( i=0; i<256; ++i ) { |
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41 palette[i].r = 255-i; |
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42 palette[i].g = 255-i; |
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43 palette[i].b = 255-i; |
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44 } |
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45 SDL_SetColors(screen, palette, 0, 256); |
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46 if ( SDL_LockSurface(screen) < 0 ) { |
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47 fprintf(stderr, "Couldn't lock display surface: %s\n", |
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48 SDL_GetError()); |
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49 return(-1); |
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50 } |
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51 buffer = (Uint8 *)screen->pixels; |
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52 for ( i=0; i<screen->h; ++i ) { |
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53 memset(buffer,(i*255)/screen->h, |
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54 screen->w*screen->format->BytesPerPixel); |
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55 buffer += screen->pitch; |
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56 } |
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57 SDL_UnlockSurface(screen); |
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58 SDL_UpdateRect(screen, 0, 0, 0, 0); |
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59 |
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60 return(0); |
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61 } |
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62 |
0 | 63 SDL_Surface *LoadIconSurface(char *file, Uint8 **maskp) |
64 { | |
65 SDL_Surface *icon; | |
66 Uint8 *pixels; | |
67 Uint8 *mask; | |
591 | 68 int mlen, i, j; |
0 | 69 |
70 *maskp = NULL; | |
71 | |
72 /* Load the icon surface */ | |
73 icon = SDL_LoadBMP(file); | |
74 if ( icon == NULL ) { | |
75 fprintf(stderr, "Couldn't load %s: %s\n", file, SDL_GetError()); | |
76 return(NULL); | |
77 } | |
78 | |
591 | 79 /* Check width and height |
0 | 80 if ( (icon->w%8) != 0 ) { |
81 fprintf(stderr, "Icon width must be a multiple of 8!\n"); | |
82 SDL_FreeSurface(icon); | |
83 return(NULL); | |
84 } | |
591 | 85 */ |
86 | |
87 | |
0 | 88 if ( icon->format->palette == NULL ) { |
89 fprintf(stderr, "Icon must have a palette!\n"); | |
90 SDL_FreeSurface(icon); | |
91 return(NULL); | |
92 } | |
93 | |
94 /* Set the colorkey */ | |
95 SDL_SetColorKey(icon, SDL_SRCCOLORKEY, *((Uint8 *)icon->pixels)); | |
96 | |
97 /* Create the mask */ | |
98 pixels = (Uint8 *)icon->pixels; | |
99 printf("Transparent pixel: (%d,%d,%d)\n", | |
100 icon->format->palette->colors[*pixels].r, | |
101 icon->format->palette->colors[*pixels].g, | |
102 icon->format->palette->colors[*pixels].b); | |
591 | 103 mlen = (icon->w*icon->h + 7) / 8; |
104 mask = (Uint8 *)malloc(mlen); | |
0 | 105 if ( mask == NULL ) { |
106 fprintf(stderr, "Out of memory!\n"); | |
107 SDL_FreeSurface(icon); | |
108 return(NULL); | |
109 } | |
591 | 110 memset(mask, 0, mlen); |
111 for ( i=0; i < icon->h; i++) | |
112 for (j=0; j < icon->w; j++) { | |
113 int pindex = i * icon->pitch + j; | |
114 int mindex = i * icon->w + j; | |
115 if ( pixels[pindex] != *pixels ) | |
116 mask[mindex>>3] |= 1 << (7 - (mindex & 7)); | |
117 } | |
0 | 118 *maskp = mask; |
119 return(icon); | |
120 } | |
121 | |
122 void HotKey_ToggleFullScreen(void) | |
123 { | |
124 SDL_Surface *screen; | |
125 | |
126 screen = SDL_GetVideoSurface(); | |
127 if ( SDL_WM_ToggleFullScreen(screen) ) { | |
128 printf("Toggled fullscreen mode - now %s\n", | |
129 (screen->flags&SDL_FULLSCREEN) ? "fullscreen" : "windowed"); | |
130 } else { | |
131 printf("Unable to toggle fullscreen mode\n"); | |
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132 video_flags ^= SDL_FULLSCREEN; |
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133 SetVideoMode(screen->w, screen->h); |
0 | 134 } |
135 } | |
136 | |
137 void HotKey_ToggleGrab(void) | |
138 { | |
139 SDL_GrabMode mode; | |
140 | |
141 printf("Ctrl-G: toggling input grab!\n"); | |
142 mode = SDL_WM_GrabInput(SDL_GRAB_QUERY); | |
143 if ( mode == SDL_GRAB_ON ) { | |
144 printf("Grab was on\n"); | |
145 } else { | |
146 printf("Grab was off\n"); | |
147 } | |
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148 mode = SDL_WM_GrabInput(mode ? SDL_GRAB_OFF : SDL_GRAB_ON); |
0 | 149 if ( mode == SDL_GRAB_ON ) { |
150 printf("Grab is now on\n"); | |
151 } else { | |
152 printf("Grab is now off\n"); | |
153 } | |
154 } | |
155 | |
156 void HotKey_Iconify(void) | |
157 { | |
158 printf("Ctrl-Z: iconifying window!\n"); | |
159 SDL_WM_IconifyWindow(); | |
160 } | |
161 | |
162 void HotKey_Quit(void) | |
163 { | |
164 SDL_Event event; | |
165 | |
166 printf("Posting internal quit request\n"); | |
167 event.type = SDL_USEREVENT; | |
168 SDL_PushEvent(&event); | |
169 } | |
170 | |
171 int FilterEvents(const SDL_Event *event) | |
172 { | |
173 static int reallyquit = 0; | |
174 | |
175 switch (event->type) { | |
176 | |
177 case SDL_ACTIVEEVENT: | |
178 /* See what happened */ | |
179 printf("App %s ", | |
180 event->active.gain ? "gained" : "lost"); | |
181 if ( event->active.state & SDL_APPACTIVE ) | |
182 printf("active "); | |
183 if ( event->active.state & SDL_APPMOUSEFOCUS ) | |
184 printf("mouse "); | |
185 if ( event->active.state & SDL_APPINPUTFOCUS ) | |
186 printf("input "); | |
187 printf("focus\n"); | |
188 | |
189 /* See if we are iconified or restored */ | |
190 if ( event->active.state & SDL_APPACTIVE ) { | |
191 printf("App has been %s\n", | |
192 event->active.gain ? | |
193 "restored" : "iconified"); | |
194 } | |
195 return(0); | |
196 | |
197 /* We want to toggle visibility on buttonpress */ | |
198 case SDL_MOUSEBUTTONDOWN: | |
199 case SDL_MOUSEBUTTONUP: | |
200 if ( event->button.state == SDL_PRESSED ) { | |
201 visible = !visible; | |
202 SDL_ShowCursor(visible); | |
203 } | |
204 printf("Mouse button %d has been %s\n", | |
205 event->button.button, | |
206 (event->button.state == SDL_PRESSED) ? | |
207 "pressed" : "released"); | |
208 return(0); | |
209 | |
210 /* Show relative mouse motion */ | |
211 case SDL_MOUSEMOTION: | |
212 #if 0 | |
213 printf("Mouse relative motion: {%d,%d}\n", | |
214 event->motion.xrel, event->motion.yrel); | |
215 #endif | |
216 return(0); | |
217 | |
218 case SDL_KEYDOWN: | |
219 if ( event->key.keysym.sym == SDLK_ESCAPE ) { | |
220 HotKey_Quit(); | |
221 } | |
222 if ( (event->key.keysym.sym == SDLK_g) && | |
223 (event->key.keysym.mod & KMOD_CTRL) ) { | |
224 HotKey_ToggleGrab(); | |
225 } | |
226 if ( (event->key.keysym.sym == SDLK_z) && | |
227 (event->key.keysym.mod & KMOD_CTRL) ) { | |
228 HotKey_Iconify(); | |
229 } | |
230 if ( (event->key.keysym.sym == SDLK_RETURN) && | |
231 (event->key.keysym.mod & KMOD_ALT) ) { | |
232 HotKey_ToggleFullScreen(); | |
233 } | |
234 return(0); | |
235 | |
236 /* Pass the video resize event through .. */ | |
237 case SDL_VIDEORESIZE: | |
238 return(1); | |
239 | |
240 /* This is important! Queue it if we want to quit. */ | |
241 case SDL_QUIT: | |
242 if ( ! reallyquit ) { | |
243 reallyquit = 1; | |
244 printf("Quit requested\n"); | |
245 return(0); | |
246 } | |
247 printf("Quit demanded\n"); | |
248 return(1); | |
249 | |
250 /* This will never happen because events queued directly | |
251 to the event queue are not filtered. | |
252 */ | |
253 case SDL_USEREVENT: | |
254 return(1); | |
255 | |
256 /* Drop all other events */ | |
257 default: | |
258 return(0); | |
259 } | |
260 } | |
261 | |
262 int main(int argc, char *argv[]) | |
263 { | |
264 SDL_Event event; | |
265 char *title; | |
266 SDL_Surface *icon; | |
267 Uint8 *icon_mask; | |
268 int parsed; | |
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269 int w, h; |
0 | 270 |
271 if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { | |
272 fprintf(stderr, | |
273 "Couldn't initialize SDL: %s\n", SDL_GetError()); | |
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274 return(1); |
0 | 275 } |
276 | |
277 /* Check command line arguments */ | |
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278 w = 640; |
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279 h = 480; |
0 | 280 video_bpp = 8; |
281 video_flags = SDL_SWSURFACE; | |
282 parsed = 1; | |
283 while ( parsed ) { | |
284 if ( (argc >= 2) && (strcmp(argv[1], "-fullscreen") == 0) ) { | |
285 video_flags |= SDL_FULLSCREEN; | |
286 argc -= 1; | |
287 argv += 1; | |
288 } else | |
289 if ( (argc >= 2) && (strcmp(argv[1], "-resize") == 0) ) { | |
290 video_flags |= SDL_RESIZABLE; | |
291 argc -= 1; | |
292 argv += 1; | |
293 } else | |
294 if ( (argc >= 2) && (strcmp(argv[1], "-noframe") == 0) ) { | |
295 video_flags |= SDL_NOFRAME; | |
296 argc -= 1; | |
297 argv += 1; | |
298 } else | |
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299 if ( (argc >= 3) && (strcmp(argv[1], "-width") == 0) ) { |
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300 w = atoi(argv[2]); |
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301 argc -= 2; |
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302 argv += 2; |
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303 } else |
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304 if ( (argc >= 3) && (strcmp(argv[1], "-height") == 0) ) { |
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305 h = atoi(argv[2]); |
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306 argc -= 2; |
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307 argv += 2; |
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308 } else |
0 | 309 if ( (argc >= 3) && (strcmp(argv[1], "-bpp") == 0) ) { |
310 video_bpp = atoi(argv[2]); | |
311 argc -= 2; | |
312 argv += 2; | |
313 } else { | |
314 parsed = 0; | |
315 } | |
316 } | |
317 | |
318 /* Set the icon -- this must be done before the first mode set */ | |
319 icon = LoadIconSurface("icon.bmp", &icon_mask); | |
320 if ( icon != NULL ) { | |
321 SDL_WM_SetIcon(icon, icon_mask); | |
322 } | |
323 if ( icon_mask != NULL ) | |
324 free(icon_mask); | |
325 | |
326 /* Set the title bar */ | |
327 if ( argv[1] == NULL ) | |
328 title = "Testing 1.. 2.. 3..."; | |
329 else | |
330 title = argv[1]; | |
331 SDL_WM_SetCaption(title, "testwm"); | |
332 | |
333 /* See if it's really set */ | |
334 SDL_WM_GetCaption(&title, NULL); | |
335 if ( title ) | |
336 printf("Title was set to: %s\n", title); | |
337 else | |
338 printf("No window title was set!\n"); | |
339 | |
340 /* Initialize the display */ | |
87
3ef4bc90c388
Added -width and -height command line options
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
341 if ( SetVideoMode(w, h) < 0 ) { |
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
826
diff
changeset
|
342 quit(1); |
0 | 343 } |
344 | |
345 /* Set an event filter that discards everything but QUIT */ | |
346 SDL_SetEventFilter(FilterEvents); | |
347 | |
348 /* Ignore key up events, they don't even get filtered */ | |
349 SDL_EventState(SDL_KEYUP, SDL_IGNORE); | |
350 | |
351 /* Loop, waiting for QUIT */ | |
352 while ( SDL_WaitEvent(&event) ) { | |
353 switch (event.type) { | |
354 case SDL_VIDEORESIZE: | |
355 printf("Got a resize event: %dx%d\n", | |
356 event.resize.w, event.resize.h); | |
357 SetVideoMode(event.resize.w, event.resize.h); | |
358 break; | |
359 case SDL_USEREVENT: | |
360 printf("Handling internal quit request\n"); | |
361 /* Fall through to the quit handler */ | |
362 case SDL_QUIT: | |
363 printf("Bye bye..\n"); | |
1151
be9c9c8f6d53
Removed atexit() from most of the test programs; atexit(SDL_Quit) isn't safe
Ryan C. Gordon <icculus@icculus.org>
parents:
826
diff
changeset
|
364 quit(0); |
0 | 365 default: |
366 /* This should never happen */ | |
367 printf("Warning: Event %d wasn't filtered\n", | |
368 event.type); | |
369 break; | |
370 } | |
371 } | |
372 printf("SDL_WaitEvent() error: %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:
826
diff
changeset
|
373 SDL_Quit(); |
0 | 374 return(255); |
375 } |