Mercurial > sdl-ios-xcode
annotate test/testwm.c @ 1524:38a12fd1a2c1
Fixed bug #46
Date: Fri, 13 Jan 2006 18:09:45 -0500
From: mhall4400 vipmail kvcc edu
Subject: Possible SDL bug
Greetings
I believe Ive come across a bug in your SDL product (1.2.9), in the CD-ROM
control portion of the library.
When calling the SDL_CDPlay() function to play the last track of a CD using the
offset and length from an SDL_CD structure generated by SDL_CDOpen(), I get the
following error from a call to SDL_Error():
mciSendCommand() error: The specified parameter is out of range for the
specified command.
The code returning the error is:
SDL_CDPlay(g_playingDriveSDLCD,
g_playingDriveSDLCD->track[trackNumberInt].offset,
g_playingDriveSDLCD->track[trackNumberInt].length)
Subtracting one from the length of the provided length seems to repair the
problem:
SDL_CDPlay(g_playingDriveSDLCD,
g_playingDriveSDLCD->track[trackNumberInt].offset,
(g_playingDriveSDLCD->track[trackNumberInt].length) - 1)
Ive replicated this problem on Windows 98 SE (several months since last
patch), fully-patched Window ME, seldom-patched Windows XP SP1, and
fully-patched Windows XP SP2.
While investigating the issue, I came across a line in your librarys win32
source code in file \src\cdrom\win32\SDL_syscdrom.c (source code zip archive
from your download page), function: SDL_SYS_CDGetTOC(), line 226 where you add
1 to the value for length to fix MCI last track length bug. This may be the
source of the issue (because subtracting 1 from the length seems to resolve the
issue). Microsoft may have patched the referenced bug since you wrote that
line.
Mike Hall
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 14 Mar 2006 05:34:39 +0000 |
| parents | 08e3393e9ffb |
| children | 14717b52abc0 290b5baf2fca |
| rev | line source |
|---|---|
| 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 | |
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213 printf("Mouse motion: {%d,%d} (%d,%d)\n", |
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214 event->motion.x, event->motion.y, |
| 0 | 215 event->motion.xrel, event->motion.yrel); |
| 216 #endif | |
| 217 return(0); | |
| 218 | |
| 219 case SDL_KEYDOWN: | |
| 220 if ( event->key.keysym.sym == SDLK_ESCAPE ) { | |
| 221 HotKey_Quit(); | |
| 222 } | |
| 223 if ( (event->key.keysym.sym == SDLK_g) && | |
| 224 (event->key.keysym.mod & KMOD_CTRL) ) { | |
| 225 HotKey_ToggleGrab(); | |
| 226 } | |
| 227 if ( (event->key.keysym.sym == SDLK_z) && | |
| 228 (event->key.keysym.mod & KMOD_CTRL) ) { | |
| 229 HotKey_Iconify(); | |
| 230 } | |
| 231 if ( (event->key.keysym.sym == SDLK_RETURN) && | |
| 232 (event->key.keysym.mod & KMOD_ALT) ) { | |
| 233 HotKey_ToggleFullScreen(); | |
| 234 } | |
| 235 return(0); | |
| 236 | |
| 237 /* Pass the video resize event through .. */ | |
| 238 case SDL_VIDEORESIZE: | |
| 239 return(1); | |
| 240 | |
| 241 /* This is important! Queue it if we want to quit. */ | |
| 242 case SDL_QUIT: | |
| 243 if ( ! reallyquit ) { | |
| 244 reallyquit = 1; | |
| 245 printf("Quit requested\n"); | |
| 246 return(0); | |
| 247 } | |
| 248 printf("Quit demanded\n"); | |
| 249 return(1); | |
| 250 | |
| 251 /* This will never happen because events queued directly | |
| 252 to the event queue are not filtered. | |
| 253 */ | |
| 254 case SDL_USEREVENT: | |
| 255 return(1); | |
| 256 | |
| 257 /* Drop all other events */ | |
| 258 default: | |
| 259 return(0); | |
| 260 } | |
| 261 } | |
| 262 | |
| 263 int main(int argc, char *argv[]) | |
| 264 { | |
| 265 SDL_Event event; | |
| 266 char *title; | |
| 267 SDL_Surface *icon; | |
| 268 Uint8 *icon_mask; | |
| 269 int parsed; | |
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270 int w, h; |
| 0 | 271 |
| 272 if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { | |
| 273 fprintf(stderr, | |
| 274 "Couldn't initialize SDL: %s\n", SDL_GetError()); | |
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275 return(1); |
| 0 | 276 } |
| 277 | |
| 278 /* Check command line arguments */ | |
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279 w = 640; |
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280 h = 480; |
| 0 | 281 video_bpp = 8; |
| 282 video_flags = SDL_SWSURFACE; | |
| 283 parsed = 1; | |
| 284 while ( parsed ) { | |
| 285 if ( (argc >= 2) && (strcmp(argv[1], "-fullscreen") == 0) ) { | |
| 286 video_flags |= SDL_FULLSCREEN; | |
| 287 argc -= 1; | |
| 288 argv += 1; | |
| 289 } else | |
| 290 if ( (argc >= 2) && (strcmp(argv[1], "-resize") == 0) ) { | |
| 291 video_flags |= SDL_RESIZABLE; | |
| 292 argc -= 1; | |
| 293 argv += 1; | |
| 294 } else | |
| 295 if ( (argc >= 2) && (strcmp(argv[1], "-noframe") == 0) ) { | |
| 296 video_flags |= SDL_NOFRAME; | |
| 297 argc -= 1; | |
| 298 argv += 1; | |
| 299 } else | |
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300 if ( (argc >= 3) && (strcmp(argv[1], "-width") == 0) ) { |
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301 w = atoi(argv[2]); |
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302 argc -= 2; |
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303 argv += 2; |
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304 } else |
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305 if ( (argc >= 3) && (strcmp(argv[1], "-height") == 0) ) { |
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306 h = atoi(argv[2]); |
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307 argc -= 2; |
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308 argv += 2; |
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309 } else |
| 0 | 310 if ( (argc >= 3) && (strcmp(argv[1], "-bpp") == 0) ) { |
| 311 video_bpp = atoi(argv[2]); | |
| 312 argc -= 2; | |
| 313 argv += 2; | |
| 314 } else { | |
| 315 parsed = 0; | |
| 316 } | |
| 317 } | |
| 318 | |
| 319 /* Set the icon -- this must be done before the first mode set */ | |
| 320 icon = LoadIconSurface("icon.bmp", &icon_mask); | |
| 321 if ( icon != NULL ) { | |
| 322 SDL_WM_SetIcon(icon, icon_mask); | |
| 323 } | |
| 324 if ( icon_mask != NULL ) | |
| 325 free(icon_mask); | |
| 326 | |
| 327 /* Set the title bar */ | |
| 328 if ( argv[1] == NULL ) | |
| 329 title = "Testing 1.. 2.. 3..."; | |
| 330 else | |
| 331 title = argv[1]; | |
| 332 SDL_WM_SetCaption(title, "testwm"); | |
| 333 | |
| 334 /* See if it's really set */ | |
| 335 SDL_WM_GetCaption(&title, NULL); | |
| 336 if ( title ) | |
| 337 printf("Title was set to: %s\n", title); | |
| 338 else | |
| 339 printf("No window title was set!\n"); | |
| 340 | |
| 341 /* Initialize the display */ | |
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342 if ( SetVideoMode(w, h) < 0 ) { |
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343 quit(1); |
| 0 | 344 } |
| 345 | |
| 346 /* Set an event filter that discards everything but QUIT */ | |
| 347 SDL_SetEventFilter(FilterEvents); | |
| 348 | |
| 349 /* Ignore key up events, they don't even get filtered */ | |
| 350 SDL_EventState(SDL_KEYUP, SDL_IGNORE); | |
| 351 | |
| 352 /* Loop, waiting for QUIT */ | |
| 353 while ( SDL_WaitEvent(&event) ) { | |
| 354 switch (event.type) { | |
| 355 case SDL_VIDEORESIZE: | |
| 356 printf("Got a resize event: %dx%d\n", | |
| 357 event.resize.w, event.resize.h); | |
| 358 SetVideoMode(event.resize.w, event.resize.h); | |
| 359 break; | |
| 360 case SDL_USEREVENT: | |
| 361 printf("Handling internal quit request\n"); | |
| 362 /* Fall through to the quit handler */ | |
| 363 case SDL_QUIT: | |
| 364 printf("Bye bye..\n"); | |
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365 quit(0); |
| 0 | 366 default: |
| 367 /* This should never happen */ | |
| 368 printf("Warning: Event %d wasn't filtered\n", | |
| 369 event.type); | |
| 370 break; | |
| 371 } | |
| 372 } | |
| 373 printf("SDL_WaitEvent() error: %s\n", SDL_GetError()); | |
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374 SDL_Quit(); |
| 0 | 375 return(255); |
| 376 } |