| File: | dix/dixfonts.c |
| Location: | line 864, column 9 |
| Description: | Value stored to 'err' is never read |
| 1 | /************************************************************************ |
| 2 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. |
| 3 | |
| 4 | All Rights Reserved |
| 5 | |
| 6 | Permission to use, copy, modify, and distribute this software and its |
| 7 | documentation for any purpose and without fee is hereby granted, |
| 8 | provided that the above copyright notice appear in all copies and that |
| 9 | both that copyright notice and this permission notice appear in |
| 10 | supporting documentation, and that the name of Digital not be |
| 11 | used in advertising or publicity pertaining to distribution of the |
| 12 | software without specific, written prior permission. |
| 13 | |
| 14 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING |
| 15 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL |
| 16 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR |
| 17 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| 18 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
| 19 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS |
| 20 | SOFTWARE. |
| 21 | |
| 22 | ************************************************************************/ |
| 23 | /* The panoramix components contained the following notice */ |
| 24 | /* |
| 25 | Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts. |
| 26 | |
| 27 | Permission is hereby granted, free of charge, to any person obtaining a copy |
| 28 | of this software and associated documentation files (the "Software"), to deal |
| 29 | in the Software without restriction, including without limitation the rights |
| 30 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 31 | copies of the Software. |
| 32 | |
| 33 | The above copyright notice and this permission notice shall be included in |
| 34 | all copies or substantial portions of the Software. |
| 35 | |
| 36 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 37 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 38 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 39 | DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING, |
| 40 | BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY, |
| 41 | WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR |
| 42 | IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 43 | |
| 44 | Except as contained in this notice, the name of Digital Equipment Corporation |
| 45 | shall not be used in advertising or otherwise to promote the sale, use or other |
| 46 | dealings in this Software without prior written authorization from Digital |
| 47 | Equipment Corporation. |
| 48 | |
| 49 | ******************************************************************/ |
| 50 | |
| 51 | #ifdef HAVE_DIX_CONFIG_H1 |
| 52 | #include <dix-config.h> |
| 53 | #endif |
| 54 | |
| 55 | #include <X11/X.h> |
| 56 | #include <X11/Xmd.h> |
| 57 | #include <X11/Xproto.h> |
| 58 | #include "scrnintstr.h" |
| 59 | #include "resource.h" |
| 60 | #include "dixstruct.h" |
| 61 | #include "cursorstr.h" |
| 62 | #include "misc.h" |
| 63 | #include "opaque.h" |
| 64 | #include "dixfontstr.h" |
| 65 | #include "closestr.h" |
| 66 | #include "dixfont.h" |
| 67 | #include "xace.h" |
| 68 | |
| 69 | #ifdef XF86BIGFONT |
| 70 | #include "xf86bigfontsrv.h" |
| 71 | #endif |
| 72 | |
| 73 | extern void *fosNaturalParams; |
| 74 | extern FontPtr defaultFont; |
| 75 | |
| 76 | static FontPathElementPtr *font_path_elements = (FontPathElementPtr *) 0; |
| 77 | static int num_fpes = 0; |
| 78 | static FPEFunctions *fpe_functions = (FPEFunctions *) 0; |
| 79 | static int num_fpe_types = 0; |
| 80 | |
| 81 | static unsigned char *font_path_string; |
| 82 | |
| 83 | static int num_slept_fpes = 0; |
| 84 | static int size_slept_fpes = 0; |
| 85 | static FontPathElementPtr *slept_fpes = (FontPathElementPtr *) 0; |
| 86 | static FontPatternCachePtr patternCache; |
| 87 | |
| 88 | static int |
| 89 | FontToXError(int err) |
| 90 | { |
| 91 | switch (err) { |
| 92 | case Successful85: |
| 93 | return Success0; |
| 94 | case AllocError80: |
| 95 | return BadAlloc11; |
| 96 | case BadFontName83: |
| 97 | return BadName15; |
| 98 | case BadFontPath86: |
| 99 | case BadFontFormat88: /* is there something better? */ |
| 100 | case BadCharRange87: |
| 101 | return BadValue2; |
| 102 | default: |
| 103 | return err; |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | static int |
| 108 | LoadGlyphs(ClientPtr client, FontPtr pfont, unsigned nchars, int item_size, |
| 109 | unsigned char *data) |
| 110 | { |
| 111 | if (fpe_functions[pfont->fpe->type].load_glyphs) |
| 112 | return (*fpe_functions[pfont->fpe->type].load_glyphs) |
| 113 | (client, pfont, 0, nchars, item_size, data); |
| 114 | else |
| 115 | return Successful85; |
| 116 | } |
| 117 | |
| 118 | void |
| 119 | dixGetGlyphs(FontPtr font, unsigned long count, unsigned char *chars, |
| 120 | FontEncoding fontEncoding, |
| 121 | unsigned long *glyphcount, /* RETURN */ |
| 122 | CharInfoPtr *glyphs) /* RETURN */ |
| 123 | { |
| 124 | (*font->get_glyphs) (font, count, chars, fontEncoding, glyphcount, glyphs); |
| 125 | } |
| 126 | |
| 127 | /* |
| 128 | * adding RT_FONT prevents conflict with default cursor font |
| 129 | */ |
| 130 | Bool |
| 131 | SetDefaultFont(const char *defaultfontname) |
| 132 | { |
| 133 | int err; |
| 134 | FontPtr pf; |
| 135 | XID fid; |
| 136 | |
| 137 | fid = FakeClientID(0); |
| 138 | err = OpenFont(serverClient, fid, FontLoadAll0x000f | FontOpenSync0x0010, |
| 139 | (unsigned) strlen(defaultfontname), defaultfontname); |
| 140 | if (err != Success0) |
| 141 | return FALSE0; |
| 142 | err = dixLookupResourceByType((void **) &pf, fid, RT_FONT((RESTYPE)4), serverClient, |
| 143 | DixReadAccess(1<<0)); |
| 144 | if (err != Success0) |
| 145 | return FALSE0; |
| 146 | defaultFont = pf; |
| 147 | return TRUE1; |
| 148 | } |
| 149 | |
| 150 | /* |
| 151 | * note that the font wakeup queue is not refcounted. this is because |
| 152 | * an fpe needs to be added when it's inited, and removed when it's finally |
| 153 | * freed, in order to handle any data that isn't requested, like FS events. |
| 154 | * |
| 155 | * since the only thing that should call these routines is the renderer's |
| 156 | * init_fpe() and free_fpe(), there shouldn't be any problem in using |
| 157 | * freed data. |
| 158 | */ |
| 159 | void |
| 160 | QueueFontWakeup(FontPathElementPtr fpe) |
| 161 | { |
| 162 | int i; |
| 163 | FontPathElementPtr *new; |
| 164 | |
| 165 | for (i = 0; i < num_slept_fpes; i++) { |
| 166 | if (slept_fpes[i] == fpe) { |
| 167 | return; |
| 168 | } |
| 169 | } |
| 170 | if (num_slept_fpes == size_slept_fpes) { |
| 171 | new = (FontPathElementPtr *) |
| 172 | realloc(slept_fpes, |
| 173 | sizeof(FontPathElementPtr) * (size_slept_fpes + 4)); |
| 174 | if (!new) |
| 175 | return; |
| 176 | slept_fpes = new; |
| 177 | size_slept_fpes += 4; |
| 178 | } |
| 179 | slept_fpes[num_slept_fpes] = fpe; |
| 180 | num_slept_fpes++; |
| 181 | } |
| 182 | |
| 183 | void |
| 184 | RemoveFontWakeup(FontPathElementPtr fpe) |
| 185 | { |
| 186 | int i, j; |
| 187 | |
| 188 | for (i = 0; i < num_slept_fpes; i++) { |
| 189 | if (slept_fpes[i] == fpe) { |
| 190 | for (j = i; j < num_slept_fpes; j++) { |
| 191 | slept_fpes[j] = slept_fpes[j + 1]; |
| 192 | } |
| 193 | num_slept_fpes--; |
| 194 | return; |
| 195 | } |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | void |
| 200 | FontWakeup(void *data, int count, void *LastSelectMask) |
| 201 | { |
| 202 | int i; |
| 203 | FontPathElementPtr fpe; |
| 204 | |
| 205 | if (count < 0) |
| 206 | return; |
| 207 | /* wake up any fpe's that may be waiting for information */ |
| 208 | for (i = 0; i < num_slept_fpes; i++) { |
| 209 | fpe = slept_fpes[i]; |
| 210 | (void) (*fpe_functions[fpe->type].wakeup_fpe) (fpe, LastSelectMask); |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | /* XXX -- these two funcs may want to be broken into macros */ |
| 215 | static void |
| 216 | UseFPE(FontPathElementPtr fpe) |
| 217 | { |
| 218 | fpe->refcount++; |
| 219 | } |
| 220 | |
| 221 | static void |
| 222 | FreeFPE(FontPathElementPtr fpe) |
| 223 | { |
| 224 | fpe->refcount--; |
| 225 | if (fpe->refcount == 0) { |
| 226 | (*fpe_functions[fpe->type].free_fpe) (fpe); |
| 227 | free((void *) fpe->name); |
| 228 | free(fpe); |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | static Bool |
| 233 | doOpenFont(ClientPtr client, OFclosurePtr c) |
| 234 | { |
| 235 | FontPtr pfont = NullFont((FontPtr) 0); |
| 236 | FontPathElementPtr fpe = NULL((void*)0); |
| 237 | ScreenPtr pScr; |
| 238 | int err = Successful85; |
| 239 | int i; |
| 240 | char *alias, *newname; |
| 241 | int newlen; |
| 242 | int aliascount = 20; |
| 243 | |
| 244 | /* |
| 245 | * Decide at runtime what FontFormat to use. |
| 246 | */ |
| 247 | Mask FontFormat = |
| 248 | ((screenInfo.imageByteOrder == LSBFirst0) ? |
| 249 | BitmapFormatByteOrderLSB(0) : BitmapFormatByteOrderMSB(1L << 0)) | |
| 250 | ((screenInfo.bitmapBitOrder == LSBFirst0) ? |
| 251 | BitmapFormatBitOrderLSB(0) : BitmapFormatBitOrderMSB(1L << 1)) | |
| 252 | BitmapFormatImageRectMin(0L << 2) | |
| 253 | #if GLYPHPADBYTES4 == 1 |
| 254 | BitmapFormatScanlinePad8(0L << 8) | |
| 255 | #endif |
| 256 | #if GLYPHPADBYTES4 == 2 |
| 257 | BitmapFormatScanlinePad16(1L << 8) | |
| 258 | #endif |
| 259 | #if GLYPHPADBYTES4 == 4 |
| 260 | BitmapFormatScanlinePad32(2L << 8) | |
| 261 | #endif |
| 262 | #if GLYPHPADBYTES4 == 8 |
| 263 | BitmapFormatScanlinePad64(3L << 8) | |
| 264 | #endif |
| 265 | BitmapFormatScanlineUnit8(0L << 12); |
| 266 | |
| 267 | if (client->clientGone) { |
| 268 | if (c->current_fpe < c->num_fpes) { |
| 269 | fpe = c->fpe_list[c->current_fpe]; |
| 270 | (*fpe_functions[fpe->type].client_died) ((void *) client, fpe); |
| 271 | } |
| 272 | err = Successful85; |
| 273 | goto bail; |
| 274 | } |
| 275 | while (c->current_fpe < c->num_fpes) { |
| 276 | fpe = c->fpe_list[c->current_fpe]; |
| 277 | err = (*fpe_functions[fpe->type].open_font) |
| 278 | ((void *) client, fpe, c->flags, |
| 279 | c->fontname, c->fnamelen, FontFormat, |
| 280 | BitmapFormatMaskByte(1L << 0) | |
| 281 | BitmapFormatMaskBit(1L << 1) | |
| 282 | BitmapFormatMaskImageRectangle(1L << 2) | |
| 283 | BitmapFormatMaskScanLinePad(1L << 3) | |
| 284 | BitmapFormatMaskScanLineUnit(1L << 4), |
| 285 | c->fontid, &pfont, &alias, |
| 286 | c->non_cachable_font && c->non_cachable_font->fpe == fpe ? |
| 287 | c->non_cachable_font : (FontPtr) 0); |
| 288 | |
| 289 | if (err == FontNameAlias82 && alias) { |
| 290 | newlen = strlen(alias); |
| 291 | newname = (char *) realloc((char *) c->fontname, newlen); |
| 292 | if (!newname) { |
| 293 | err = AllocError80; |
| 294 | break; |
| 295 | } |
| 296 | memmove(newname, alias, newlen)__builtin___memmove_chk (newname, alias, newlen, __builtin_object_size (newname, 0)); |
| 297 | c->fontname = newname; |
| 298 | c->fnamelen = newlen; |
| 299 | c->current_fpe = 0; |
| 300 | if (--aliascount <= 0) { |
| 301 | /* We've tried resolving this alias 20 times, we're |
| 302 | * probably stuck in an infinite loop of aliases pointing |
| 303 | * to each other - time to take emergency exit! |
| 304 | */ |
| 305 | err = BadImplementation17; |
| 306 | break; |
| 307 | } |
| 308 | continue; |
| 309 | } |
| 310 | if (err == BadFontName83) { |
| 311 | c->current_fpe++; |
| 312 | continue; |
| 313 | } |
| 314 | if (err == Suspended84) { |
| 315 | if (!ClientIsAsleep(client)) |
| 316 | ClientSleep(client, (ClientSleepProcPtr) doOpenFont, c); |
| 317 | return TRUE1; |
| 318 | } |
| 319 | break; |
| 320 | } |
| 321 | |
| 322 | if (err != Successful85) |
| 323 | goto bail; |
| 324 | if (!pfont) { |
| 325 | err = BadFontName83; |
| 326 | goto bail; |
| 327 | } |
| 328 | /* check values for firstCol, lastCol, firstRow, and lastRow */ |
| 329 | if (pfont->info.firstCol > pfont->info.lastCol || |
| 330 | pfont->info.firstRow > pfont->info.lastRow || |
| 331 | pfont->info.lastCol - pfont->info.firstCol > 255) { |
| 332 | err = AllocError80; |
| 333 | goto bail; |
| 334 | } |
| 335 | if (!pfont->fpe) |
| 336 | pfont->fpe = fpe; |
| 337 | pfont->refcnt++; |
| 338 | if (pfont->refcnt == 1) { |
| 339 | UseFPE(pfont->fpe); |
| 340 | for (i = 0; i < screenInfo.numScreens; i++) { |
| 341 | pScr = screenInfo.screens[i]; |
| 342 | if (pScr->RealizeFont) { |
| 343 | if (!(*pScr->RealizeFont) (pScr, pfont)) { |
| 344 | CloseFont(pfont, (Font) 0); |
| 345 | err = AllocError80; |
| 346 | goto bail; |
| 347 | } |
| 348 | } |
| 349 | } |
| 350 | } |
| 351 | if (!AddResourceDarwin_X_AddResource(c->fontid, RT_FONT((RESTYPE)4), (void *) pfont)) { |
| 352 | err = AllocError80; |
| 353 | goto bail; |
| 354 | } |
| 355 | if (patternCache && pfont != c->non_cachable_font) |
| 356 | CacheFontPattern(patternCache, c->origFontName, c->origFontNameLen, |
| 357 | pfont); |
| 358 | bail: |
| 359 | if (err != Successful85 && c->client != serverClient) { |
| 360 | SendErrorToClient(c->client, X_OpenFont45, 0, |
| 361 | c->fontid, FontToXError(err)); |
| 362 | } |
| 363 | ClientWakeup(c->client); |
| 364 | for (i = 0; i < c->num_fpes; i++) { |
| 365 | FreeFPE(c->fpe_list[i]); |
| 366 | } |
| 367 | free(c->fpe_list); |
| 368 | free((void *) c->fontname); |
| 369 | free(c); |
| 370 | return TRUE1; |
| 371 | } |
| 372 | |
| 373 | int |
| 374 | OpenFont(ClientPtr client, XID fid, Mask flags, unsigned lenfname, |
| 375 | const char *pfontname) |
| 376 | { |
| 377 | OFclosurePtr c; |
| 378 | int i; |
| 379 | FontPtr cached = (FontPtr) 0; |
| 380 | |
| 381 | if (!lenfname || lenfname > XLFDMAXFONTNAMELEN256) |
| 382 | return BadName15; |
| 383 | if (patternCache) { |
| 384 | |
| 385 | /* |
| 386 | ** Check name cache. If we find a cached version of this font that |
| 387 | ** is cachable, immediately satisfy the request with it. If we find |
| 388 | ** a cached version of this font that is non-cachable, we do not |
| 389 | ** satisfy the request with it. Instead, we pass the FontPtr to the |
| 390 | ** FPE's open_font code (the fontfile FPE in turn passes the |
| 391 | ** information to the rasterizer; the fserve FPE ignores it). |
| 392 | ** |
| 393 | ** Presumably, the font is marked non-cachable because the FPE has |
| 394 | ** put some licensing restrictions on it. If the FPE, using |
| 395 | ** whatever logic it relies on, determines that it is willing to |
| 396 | ** share this existing font with the client, then it has the option |
| 397 | ** to return the FontPtr we passed it as the newly-opened font. |
| 398 | ** This allows the FPE to exercise its licensing logic without |
| 399 | ** having to create another instance of a font that already exists. |
| 400 | */ |
| 401 | |
| 402 | cached = FindCachedFontPattern(patternCache, pfontname, lenfname); |
| 403 | if (cached && cached->info.cachable) { |
| 404 | if (!AddResourceDarwin_X_AddResource(fid, RT_FONT((RESTYPE)4), (void *) cached)) |
| 405 | return BadAlloc11; |
| 406 | cached->refcnt++; |
| 407 | return Success0; |
| 408 | } |
| 409 | } |
| 410 | c = malloc(sizeof(OFclosureRec)); |
| 411 | if (!c) |
| 412 | return BadAlloc11; |
| 413 | c->fontname = malloc(lenfname); |
| 414 | c->origFontName = pfontname; |
| 415 | c->origFontNameLen = lenfname; |
| 416 | if (!c->fontname) { |
| 417 | free(c); |
| 418 | return BadAlloc11; |
| 419 | } |
| 420 | /* |
| 421 | * copy the current FPE list, so that if it gets changed by another client |
| 422 | * while we're blocking, the request still appears atomic |
| 423 | */ |
| 424 | c->fpe_list = malloc(sizeof(FontPathElementPtr) * num_fpes); |
| 425 | if (!c->fpe_list) { |
| 426 | free((void *) c->fontname); |
| 427 | free(c); |
| 428 | return BadAlloc11; |
| 429 | } |
| 430 | memmove(c->fontname, pfontname, lenfname)__builtin___memmove_chk (c->fontname, pfontname, lenfname, __builtin_object_size (c->fontname, 0)); |
| 431 | for (i = 0; i < num_fpes; i++) { |
| 432 | c->fpe_list[i] = font_path_elements[i]; |
| 433 | UseFPE(c->fpe_list[i]); |
| 434 | } |
| 435 | c->client = client; |
| 436 | c->fontid = fid; |
| 437 | c->current_fpe = 0; |
| 438 | c->num_fpes = num_fpes; |
| 439 | c->fnamelen = lenfname; |
| 440 | c->flags = flags; |
| 441 | c->non_cachable_font = cached; |
| 442 | |
| 443 | (void) doOpenFont(client, c); |
| 444 | return Success0; |
| 445 | } |
| 446 | |
| 447 | /** |
| 448 | * Decrement font's ref count, and free storage if ref count equals zero |
| 449 | * |
| 450 | * \param value must conform to DeleteType |
| 451 | */ |
| 452 | int |
| 453 | CloseFont(void *value, XID fid) |
| 454 | { |
| 455 | int nscr; |
| 456 | ScreenPtr pscr; |
| 457 | FontPathElementPtr fpe; |
| 458 | FontPtr pfont = (FontPtr) value; |
| 459 | |
| 460 | if (pfont == NullFont((FontPtr) 0)) |
| 461 | return Success0; |
| 462 | if (--pfont->refcnt == 0) { |
| 463 | if (patternCache) |
| 464 | RemoveCachedFontPattern(patternCache, pfont); |
| 465 | /* |
| 466 | * since the last reference is gone, ask each screen to free any |
| 467 | * storage it may have allocated locally for it. |
| 468 | */ |
| 469 | for (nscr = 0; nscr < screenInfo.numScreens; nscr++) { |
| 470 | pscr = screenInfo.screens[nscr]; |
| 471 | if (pscr->UnrealizeFont) |
| 472 | (*pscr->UnrealizeFont) (pscr, pfont); |
| 473 | } |
| 474 | if (pfont == defaultFont) |
| 475 | defaultFont = NULL((void*)0); |
| 476 | #ifdef XF86BIGFONT |
| 477 | XF86BigfontFreeFontShm(pfont); |
| 478 | #endif |
| 479 | fpe = pfont->fpe; |
| 480 | (*fpe_functions[fpe->type].close_font) (fpe, pfont); |
| 481 | FreeFPE(fpe); |
| 482 | } |
| 483 | return Success0; |
| 484 | } |
| 485 | |
| 486 | /***====================================================================***/ |
| 487 | |
| 488 | /** |
| 489 | * Sets up pReply as the correct QueryFontReply for pFont with the first |
| 490 | * nProtoCCIStructs char infos. |
| 491 | * |
| 492 | * \param pReply caller must allocate this storage |
| 493 | */ |
| 494 | void |
| 495 | QueryFont(FontPtr pFont, xQueryFontReply * pReply, int nProtoCCIStructs) |
| 496 | { |
| 497 | FontPropPtr pFP; |
| 498 | int r, c, i; |
| 499 | xFontProp *prFP; |
| 500 | xCharInfo *prCI; |
| 501 | xCharInfo *charInfos[256]; |
| 502 | unsigned char chars[512]; |
| 503 | int ninfos; |
| 504 | unsigned long ncols; |
| 505 | unsigned long count; |
| 506 | |
| 507 | /* pr->length set in dispatch */ |
| 508 | pReply->minCharOrByte2 = pFont->info.firstCol; |
| 509 | pReply->defaultChar = pFont->info.defaultCh; |
| 510 | pReply->maxCharOrByte2 = pFont->info.lastCol; |
| 511 | pReply->drawDirection = pFont->info.drawDirection; |
| 512 | pReply->allCharsExist = pFont->info.allExist; |
| 513 | pReply->minByte1 = pFont->info.firstRow; |
| 514 | pReply->maxByte1 = pFont->info.lastRow; |
| 515 | pReply->fontAscent = pFont->info.fontAscent; |
| 516 | pReply->fontDescent = pFont->info.fontDescent; |
| 517 | |
| 518 | pReply->minBounds = pFont->info.ink_minbounds; |
| 519 | pReply->maxBounds = pFont->info.ink_maxbounds; |
| 520 | |
| 521 | pReply->nFontProps = pFont->info.nprops; |
| 522 | pReply->nCharInfos = nProtoCCIStructs; |
| 523 | |
| 524 | for (i = 0, pFP = pFont->info.props, prFP = (xFontProp *) (&pReply[1]); |
| 525 | i < pFont->info.nprops; i++, pFP++, prFP++) { |
| 526 | prFP->name = pFP->name; |
| 527 | prFP->value = pFP->value; |
| 528 | } |
| 529 | |
| 530 | ninfos = 0; |
| 531 | ncols = (unsigned long) (pFont->info.lastCol - pFont->info.firstCol + 1); |
| 532 | prCI = (xCharInfo *) (prFP); |
| 533 | for (r = pFont->info.firstRow; |
| 534 | ninfos < nProtoCCIStructs && r <= (int) pFont->info.lastRow; r++) { |
| 535 | i = 0; |
| 536 | for (c = pFont->info.firstCol; c <= (int) pFont->info.lastCol; c++) { |
| 537 | chars[i++] = r; |
| 538 | chars[i++] = c; |
| 539 | } |
| 540 | (*pFont->get_metrics) (pFont, ncols, chars, |
| 541 | TwoD16Bit, &count, charInfos); |
| 542 | i = 0; |
| 543 | for (i = 0; i < (int) count && ninfos < nProtoCCIStructs; i++) { |
| 544 | *prCI = *charInfos[i]; |
| 545 | prCI++; |
| 546 | ninfos++; |
| 547 | } |
| 548 | } |
| 549 | return; |
| 550 | } |
| 551 | |
| 552 | static Bool |
| 553 | doListFontsAndAliases(ClientPtr client, LFclosurePtr c) |
| 554 | { |
| 555 | FontPathElementPtr fpe; |
| 556 | int err = Successful85; |
| 557 | FontNamesPtr names = NULL((void*)0); |
| 558 | char *name, *resolved = NULL((void*)0); |
| 559 | int namelen, resolvedlen; |
| 560 | int nnames; |
| 561 | int stringLens; |
| 562 | int i; |
| 563 | xListFontsReply reply; |
| 564 | char *bufptr; |
| 565 | char *bufferStart; |
| 566 | int aliascount = 0; |
| 567 | |
| 568 | if (client->clientGone) { |
| 569 | if (c->current.current_fpe < c->num_fpes) { |
| 570 | fpe = c->fpe_list[c->current.current_fpe]; |
| 571 | (*fpe_functions[fpe->type].client_died) ((void *) client, fpe); |
| 572 | } |
| 573 | err = Successful85; |
| 574 | goto bail; |
| 575 | } |
| 576 | |
| 577 | if (!c->current.patlen) |
| 578 | goto finish; |
| 579 | |
| 580 | while (c->current.current_fpe < c->num_fpes) { |
| 581 | fpe = c->fpe_list[c->current.current_fpe]; |
| 582 | err = Successful85; |
| 583 | |
| 584 | if (!fpe_functions[fpe->type].start_list_fonts_and_aliases) { |
| 585 | /* This FPE doesn't support/require list_fonts_and_aliases */ |
| 586 | |
| 587 | err = (*fpe_functions[fpe->type].list_fonts) |
| 588 | ((void *) c->client, fpe, c->current.pattern, |
| 589 | c->current.patlen, c->current.max_names - c->names->nnames, |
| 590 | c->names); |
| 591 | |
| 592 | if (err == Suspended84) { |
| 593 | if (!ClientIsAsleep(client)) |
| 594 | ClientSleep(client, |
| 595 | (ClientSleepProcPtr) doListFontsAndAliases, c); |
| 596 | return TRUE1; |
| 597 | } |
| 598 | |
| 599 | err = BadFontName83; |
| 600 | } |
| 601 | else { |
| 602 | /* Start of list_fonts_and_aliases functionality. Modeled |
| 603 | after list_fonts_with_info in that it resolves aliases, |
| 604 | except that the information collected from FPEs is just |
| 605 | names, not font info. Each list_next_font_or_alias() |
| 606 | returns either a name into name/namelen or an alias into |
| 607 | name/namelen and its target name into resolved/resolvedlen. |
| 608 | The code at this level then resolves the alias by polling |
| 609 | the FPEs. */ |
| 610 | |
| 611 | if (!c->current.list_started) { |
| 612 | err = (*fpe_functions[fpe->type].start_list_fonts_and_aliases) |
| 613 | ((void *) c->client, fpe, c->current.pattern, |
| 614 | c->current.patlen, c->current.max_names - c->names->nnames, |
| 615 | &c->current.private); |
| 616 | if (err == Suspended84) { |
| 617 | if (!ClientIsAsleep(client)) |
| 618 | ClientSleep(client, |
| 619 | (ClientSleepProcPtr) doListFontsAndAliases, |
| 620 | c); |
| 621 | return TRUE1; |
| 622 | } |
| 623 | if (err == Successful85) |
| 624 | c->current.list_started = TRUE1; |
| 625 | } |
| 626 | if (err == Successful85) { |
| 627 | char *tmpname; |
| 628 | |
| 629 | name = 0; |
| 630 | err = (*fpe_functions[fpe->type].list_next_font_or_alias) |
| 631 | ((void *) c->client, fpe, &name, &namelen, &tmpname, |
| 632 | &resolvedlen, c->current.private); |
| 633 | if (err == Suspended84) { |
| 634 | if (!ClientIsAsleep(client)) |
| 635 | ClientSleep(client, |
| 636 | (ClientSleepProcPtr) doListFontsAndAliases, |
| 637 | c); |
| 638 | return TRUE1; |
| 639 | } |
| 640 | if (err == FontNameAlias82) { |
| 641 | free(resolved); |
| 642 | resolved = malloc(resolvedlen + 1); |
| 643 | if (resolved) |
| 644 | memmove(resolved, tmpname, resolvedlen + 1)__builtin___memmove_chk (resolved, tmpname, resolvedlen + 1, __builtin_object_size (resolved, 0)); |
| 645 | } |
| 646 | } |
| 647 | |
| 648 | if (err == Successful85) { |
| 649 | if (c->haveSaved) { |
| 650 | if (c->savedName) |
| 651 | (void) AddFontNamesName(c->names, c->savedName, |
| 652 | c->savedNameLen); |
| 653 | } |
| 654 | else |
| 655 | (void) AddFontNamesName(c->names, name, namelen); |
| 656 | } |
| 657 | |
| 658 | /* |
| 659 | * When we get an alias back, save our state and reset back to |
| 660 | * the start of the FPE looking for the specified name. As |
| 661 | * soon as a real font is found for the alias, pop back to the |
| 662 | * old state |
| 663 | */ |
| 664 | else if (err == FontNameAlias82) { |
| 665 | char tmp_pattern[XLFDMAXFONTNAMELEN256]; |
| 666 | |
| 667 | /* |
| 668 | * when an alias recurses, we need to give |
| 669 | * the last FPE a chance to clean up; so we call |
| 670 | * it again, and assume that the error returned |
| 671 | * is BadFontName, indicating the alias resolution |
| 672 | * is complete. |
| 673 | */ |
| 674 | memmove(tmp_pattern, resolved, resolvedlen)__builtin___memmove_chk (tmp_pattern, resolved, resolvedlen, __builtin_object_size (tmp_pattern, 0)); |
| 675 | if (c->haveSaved) { |
| 676 | char *tmpname; |
| 677 | int tmpnamelen; |
| 678 | |
| 679 | tmpname = 0; |
| 680 | (void) (*fpe_functions[fpe->type].list_next_font_or_alias) |
| 681 | ((void *) c->client, fpe, &tmpname, &tmpnamelen, |
| 682 | &tmpname, &tmpnamelen, c->current.private); |
| 683 | if (--aliascount <= 0) { |
| 684 | err = BadFontName83; |
| 685 | goto ContBadFontName; |
| 686 | } |
| 687 | } |
| 688 | else { |
| 689 | c->saved = c->current; |
| 690 | c->haveSaved = TRUE1; |
| 691 | free(c->savedName); |
| 692 | c->savedName = malloc(namelen + 1); |
| 693 | if (c->savedName) |
| 694 | memmove(c->savedName, name, namelen + 1)__builtin___memmove_chk (c->savedName, name, namelen + 1, __builtin_object_size (c->savedName, 0)); |
| 695 | c->savedNameLen = namelen; |
| 696 | aliascount = 20; |
| 697 | } |
| 698 | memmove(c->current.pattern, tmp_pattern, resolvedlen)__builtin___memmove_chk (c->current.pattern, tmp_pattern, resolvedlen , __builtin_object_size (c->current.pattern, 0)); |
| 699 | c->current.patlen = resolvedlen; |
| 700 | c->current.max_names = c->names->nnames + 1; |
| 701 | c->current.current_fpe = -1; |
| 702 | c->current.private = 0; |
| 703 | err = BadFontName83; |
| 704 | } |
| 705 | } |
| 706 | /* |
| 707 | * At the end of this FPE, step to the next. If we've finished |
| 708 | * processing an alias, pop state back. If we've collected enough |
| 709 | * font names, quit. |
| 710 | */ |
| 711 | if (err == BadFontName83) { |
| 712 | ContBadFontName:; |
| 713 | c->current.list_started = FALSE0; |
| 714 | c->current.current_fpe++; |
| 715 | err = Successful85; |
| 716 | if (c->haveSaved) { |
| 717 | if (c->names->nnames == c->current.max_names || |
| 718 | c->current.current_fpe == c->num_fpes) { |
| 719 | c->haveSaved = FALSE0; |
| 720 | c->current = c->saved; |
| 721 | /* Give the saved namelist a chance to clean itself up */ |
| 722 | continue; |
| 723 | } |
| 724 | } |
| 725 | if (c->names->nnames == c->current.max_names) |
| 726 | break; |
| 727 | } |
| 728 | } |
| 729 | |
| 730 | /* |
| 731 | * send the reply |
| 732 | */ |
| 733 | if (err != Successful85) { |
| 734 | SendErrorToClient(client, X_ListFonts49, 0, 0, FontToXError(err)); |
| 735 | goto bail; |
| 736 | } |
| 737 | |
| 738 | finish: |
| 739 | |
| 740 | names = c->names; |
| 741 | nnames = names->nnames; |
| 742 | client = c->client; |
| 743 | stringLens = 0; |
| 744 | for (i = 0; i < nnames; i++) |
| 745 | stringLens += (names->length[i] <= 255) ? names->length[i] : 0; |
| 746 | |
| 747 | reply = (xListFontsReply) { |
| 748 | .type = X_Reply1, |
| 749 | .length = bytes_to_int32(stringLens + nnames), |
| 750 | .nFonts = nnames, |
| 751 | .sequenceNumber = client->sequence |
| 752 | }; |
| 753 | |
| 754 | bufptr = bufferStart = malloc(reply.length << 2); |
| 755 | |
| 756 | if (!bufptr && reply.length) { |
| 757 | SendErrorToClient(client, X_ListFonts49, 0, 0, BadAlloc11); |
| 758 | goto bail; |
| 759 | } |
| 760 | /* |
| 761 | * since WriteToClient long word aligns things, copy to temp buffer and |
| 762 | * write all at once |
| 763 | */ |
| 764 | for (i = 0; i < nnames; i++) { |
| 765 | if (names->length[i] > 255) |
| 766 | reply.nFonts--; |
| 767 | else { |
| 768 | *bufptr++ = names->length[i]; |
| 769 | memmove(bufptr, names->names[i], names->length[i])__builtin___memmove_chk (bufptr, names->names[i], names-> length[i], __builtin_object_size (bufptr, 0)); |
| 770 | bufptr += names->length[i]; |
| 771 | } |
| 772 | } |
| 773 | nnames = reply.nFonts; |
| 774 | reply.length = bytes_to_int32(stringLens + nnames); |
| 775 | client->pSwapReplyFunc = ReplySwapVector[X_ListFonts49]; |
| 776 | WriteSwappedDataToClient(client, sizeof(xListFontsReply), &reply)if ((client)->swapped) (*(client)->pSwapReplyFunc)(client , (int)(sizeof(xListFontsReply)), &reply); else WriteToClient (client, (int)(sizeof(xListFontsReply)), (&reply));; |
| 777 | WriteToClient(client, stringLens + nnames, bufferStart); |
| 778 | free(bufferStart); |
| 779 | |
| 780 | bail: |
| 781 | ClientWakeup(client); |
| 782 | for (i = 0; i < c->num_fpes; i++) |
| 783 | FreeFPE(c->fpe_list[i]); |
| 784 | free(c->fpe_list); |
| 785 | free(c->savedName); |
| 786 | FreeFontNames(names); |
| 787 | free(c); |
| 788 | free(resolved); |
| 789 | return TRUE1; |
| 790 | } |
| 791 | |
| 792 | int |
| 793 | ListFonts(ClientPtr client, unsigned char *pattern, unsigned length, |
| 794 | unsigned max_names) |
| 795 | { |
| 796 | int i; |
| 797 | LFclosurePtr c; |
| 798 | |
| 799 | /* |
| 800 | * The right error to return here would be BadName, however the |
| 801 | * specification does not allow for a Name error on this request. |
| 802 | * Perhaps a better solution would be to return a nil list, i.e. |
| 803 | * a list containing zero fontnames. |
| 804 | */ |
| 805 | if (length > XLFDMAXFONTNAMELEN256) |
| 806 | return BadAlloc11; |
| 807 | |
| 808 | i = XaceHook(XACE_SERVER_ACCESS9, client, DixGetAttrAccess(1<<4)); |
| 809 | if (i != Success0) |
| 810 | return i; |
| 811 | |
| 812 | if (!(c = malloc(sizeof *c))) |
| 813 | return BadAlloc11; |
| 814 | c->fpe_list = malloc(sizeof(FontPathElementPtr) * num_fpes); |
| 815 | if (!c->fpe_list) { |
| 816 | free(c); |
| 817 | return BadAlloc11; |
| 818 | } |
| 819 | c->names = MakeFontNamesRecord(max_names < 100 ? max_names : 100); |
| 820 | if (!c->names) { |
| 821 | free(c->fpe_list); |
| 822 | free(c); |
| 823 | return BadAlloc11; |
| 824 | } |
| 825 | memmove(c->current.pattern, pattern, length)__builtin___memmove_chk (c->current.pattern, pattern, length , __builtin_object_size (c->current.pattern, 0)); |
| 826 | for (i = 0; i < num_fpes; i++) { |
| 827 | c->fpe_list[i] = font_path_elements[i]; |
| 828 | UseFPE(c->fpe_list[i]); |
| 829 | } |
| 830 | c->client = client; |
| 831 | c->num_fpes = num_fpes; |
| 832 | c->current.patlen = length; |
| 833 | c->current.current_fpe = 0; |
| 834 | c->current.max_names = max_names; |
| 835 | c->current.list_started = FALSE0; |
| 836 | c->current.private = 0; |
| 837 | c->haveSaved = FALSE0; |
| 838 | c->savedName = 0; |
| 839 | doListFontsAndAliases(client, c); |
| 840 | return Success0; |
| 841 | } |
| 842 | |
| 843 | int |
| 844 | doListFontsWithInfo(ClientPtr client, LFWIclosurePtr c) |
| 845 | { |
| 846 | FontPathElementPtr fpe; |
| 847 | int err = Successful85; |
| 848 | char *name; |
| 849 | int namelen; |
| 850 | int numFonts; |
| 851 | FontInfoRec fontInfo, *pFontInfo; |
| 852 | xListFontsWithInfoReply *reply; |
| 853 | int length; |
| 854 | xFontProp *pFP; |
| 855 | int i; |
| 856 | int aliascount = 0; |
| 857 | xListFontsWithInfoReply finalReply; |
| 858 | |
| 859 | if (client->clientGone) { |
| 860 | if (c->current.current_fpe < c->num_fpes) { |
| 861 | fpe = c->fpe_list[c->current.current_fpe]; |
| 862 | (*fpe_functions[fpe->type].client_died) ((void *) client, fpe); |
| 863 | } |
| 864 | err = Successful85; |
Value stored to 'err' is never read | |
| 865 | goto bail; |
| 866 | } |
| 867 | client->pSwapReplyFunc = ReplySwapVector[X_ListFontsWithInfo50]; |
| 868 | if (!c->current.patlen) |
| 869 | goto finish; |
| 870 | while (c->current.current_fpe < c->num_fpes) { |
| 871 | fpe = c->fpe_list[c->current.current_fpe]; |
| 872 | err = Successful85; |
| 873 | if (!c->current.list_started) { |
| 874 | err = (*fpe_functions[fpe->type].start_list_fonts_with_info) |
| 875 | (client, fpe, c->current.pattern, c->current.patlen, |
| 876 | c->current.max_names, &c->current.private); |
| 877 | if (err == Suspended84) { |
| 878 | if (!ClientIsAsleep(client)) |
| 879 | ClientSleep(client, |
| 880 | (ClientSleepProcPtr) doListFontsWithInfo, c); |
| 881 | return TRUE1; |
| 882 | } |
| 883 | if (err == Successful85) |
| 884 | c->current.list_started = TRUE1; |
| 885 | } |
| 886 | if (err == Successful85) { |
| 887 | name = 0; |
| 888 | pFontInfo = &fontInfo; |
| 889 | err = (*fpe_functions[fpe->type].list_next_font_with_info) |
| 890 | (client, fpe, &name, &namelen, &pFontInfo, |
| 891 | &numFonts, c->current.private); |
| 892 | if (err == Suspended84) { |
| 893 | if (!ClientIsAsleep(client)) |
| 894 | ClientSleep(client, |
| 895 | (ClientSleepProcPtr) doListFontsWithInfo, c); |
| 896 | return TRUE1; |
| 897 | } |
| 898 | } |
| 899 | /* |
| 900 | * When we get an alias back, save our state and reset back to the |
| 901 | * start of the FPE looking for the specified name. As soon as a real |
| 902 | * font is found for the alias, pop back to the old state |
| 903 | */ |
| 904 | if (err == FontNameAlias82) { |
| 905 | /* |
| 906 | * when an alias recurses, we need to give |
| 907 | * the last FPE a chance to clean up; so we call |
| 908 | * it again, and assume that the error returned |
| 909 | * is BadFontName, indicating the alias resolution |
| 910 | * is complete. |
| 911 | */ |
| 912 | if (c->haveSaved) { |
| 913 | char *tmpname; |
| 914 | int tmpnamelen; |
| 915 | FontInfoPtr tmpFontInfo; |
| 916 | |
| 917 | tmpname = 0; |
| 918 | tmpFontInfo = &fontInfo; |
| 919 | (void) (*fpe_functions[fpe->type].list_next_font_with_info) |
| 920 | (client, fpe, &tmpname, &tmpnamelen, &tmpFontInfo, |
| 921 | &numFonts, c->current.private); |
| 922 | if (--aliascount <= 0) { |
| 923 | err = BadFontName83; |
| 924 | goto ContBadFontName; |
| 925 | } |
| 926 | } |
| 927 | else { |
| 928 | c->saved = c->current; |
| 929 | c->haveSaved = TRUE1; |
| 930 | c->savedNumFonts = numFonts; |
| 931 | free(c->savedName); |
| 932 | c->savedName = malloc(namelen + 1); |
| 933 | if (c->savedName) |
| 934 | memmove(c->savedName, name, namelen + 1)__builtin___memmove_chk (c->savedName, name, namelen + 1, __builtin_object_size (c->savedName, 0)); |
| 935 | aliascount = 20; |
| 936 | } |
| 937 | memmove(c->current.pattern, name, namelen)__builtin___memmove_chk (c->current.pattern, name, namelen , __builtin_object_size (c->current.pattern, 0)); |
| 938 | c->current.patlen = namelen; |
| 939 | c->current.max_names = 1; |
| 940 | c->current.current_fpe = 0; |
| 941 | c->current.private = 0; |
| 942 | c->current.list_started = FALSE0; |
| 943 | } |
| 944 | /* |
| 945 | * At the end of this FPE, step to the next. If we've finished |
| 946 | * processing an alias, pop state back. If we've sent enough font |
| 947 | * names, quit. Always wait for BadFontName to let the FPE |
| 948 | * have a chance to clean up. |
| 949 | */ |
| 950 | else if (err == BadFontName83) { |
| 951 | ContBadFontName:; |
| 952 | c->current.list_started = FALSE0; |
| 953 | c->current.current_fpe++; |
| 954 | err = Successful85; |
| 955 | if (c->haveSaved) { |
| 956 | if (c->current.max_names == 0 || |
| 957 | c->current.current_fpe == c->num_fpes) { |
| 958 | c->haveSaved = FALSE0; |
| 959 | c->saved.max_names -= (1 - c->current.max_names); |
| 960 | c->current = c->saved; |
| 961 | } |
| 962 | } |
| 963 | else if (c->current.max_names == 0) |
| 964 | break; |
| 965 | } |
| 966 | else if (err == Successful85) { |
| 967 | length = sizeof(*reply) + pFontInfo->nprops * sizeof(xFontProp); |
| 968 | reply = c->reply; |
| 969 | if (c->length < length) { |
| 970 | reply = (xListFontsWithInfoReply *) realloc(c->reply, length); |
| 971 | if (!reply) { |
| 972 | err = AllocError80; |
| 973 | break; |
| 974 | } |
| 975 | memset((char *) reply + c->length, 0, length - c->length)__builtin___memset_chk ((char *) reply + c->length, 0, length - c->length, __builtin_object_size ((char *) reply + c-> length, 0)); |
| 976 | c->reply = reply; |
| 977 | c->length = length; |
| 978 | } |
| 979 | if (c->haveSaved) { |
| 980 | numFonts = c->savedNumFonts; |
| 981 | name = c->savedName; |
| 982 | namelen = strlen(name); |
| 983 | } |
| 984 | reply->type = X_Reply1; |
| 985 | reply->length = |
| 986 | bytes_to_int32(sizeof *reply - sizeof(xGenericReply) + |
| 987 | pFontInfo->nprops * sizeof(xFontProp) + namelen); |
| 988 | reply->sequenceNumber = client->sequence; |
| 989 | reply->nameLength = namelen; |
| 990 | reply->minBounds = pFontInfo->ink_minbounds; |
| 991 | reply->maxBounds = pFontInfo->ink_maxbounds; |
| 992 | reply->minCharOrByte2 = pFontInfo->firstCol; |
| 993 | reply->maxCharOrByte2 = pFontInfo->lastCol; |
| 994 | reply->defaultChar = pFontInfo->defaultCh; |
| 995 | reply->nFontProps = pFontInfo->nprops; |
| 996 | reply->drawDirection = pFontInfo->drawDirection; |
| 997 | reply->minByte1 = pFontInfo->firstRow; |
| 998 | reply->maxByte1 = pFontInfo->lastRow; |
| 999 | reply->allCharsExist = pFontInfo->allExist; |
| 1000 | reply->fontAscent = pFontInfo->fontAscent; |
| 1001 | reply->fontDescent = pFontInfo->fontDescent; |
| 1002 | reply->nReplies = numFonts; |
| 1003 | pFP = (xFontProp *) (reply + 1); |
| 1004 | for (i = 0; i < pFontInfo->nprops; i++) { |
| 1005 | pFP->name = pFontInfo->props[i].name; |
| 1006 | pFP->value = pFontInfo->props[i].value; |
| 1007 | pFP++; |
| 1008 | } |
| 1009 | WriteSwappedDataToClient(client, length, reply)if ((client)->swapped) (*(client)->pSwapReplyFunc)(client , (int)(length), reply); else WriteToClient(client, (int)(length ), (reply));; |
| 1010 | WriteToClient(client, namelen, name); |
| 1011 | if (pFontInfo == &fontInfo) { |
| 1012 | free(fontInfo.props); |
| 1013 | free(fontInfo.isStringProp); |
| 1014 | } |
| 1015 | --c->current.max_names; |
| 1016 | } |
| 1017 | } |
| 1018 | finish: |
| 1019 | length = sizeof(xListFontsWithInfoReply); |
| 1020 | finalReply = (xListFontsWithInfoReply) { |
| 1021 | .type = X_Reply1, |
| 1022 | .sequenceNumber = client->sequence, |
| 1023 | .length = bytes_to_int32(sizeof(xListFontsWithInfoReply) |
| 1024 | - sizeof(xGenericReply)) |
| 1025 | }; |
| 1026 | WriteSwappedDataToClient(client, length, &finalReply)if ((client)->swapped) (*(client)->pSwapReplyFunc)(client , (int)(length), &finalReply); else WriteToClient(client, (int)(length), (&finalReply));; |
| 1027 | bail: |
| 1028 | ClientWakeup(client); |
| 1029 | for (i = 0; i < c->num_fpes; i++) |
| 1030 | FreeFPE(c->fpe_list[i]); |
| 1031 | free(c->reply); |
| 1032 | free(c->fpe_list); |
| 1033 | free(c->savedName); |
| 1034 | free(c); |
| 1035 | return TRUE1; |
| 1036 | } |
| 1037 | |
| 1038 | int |
| 1039 | StartListFontsWithInfo(ClientPtr client, int length, unsigned char *pattern, |
| 1040 | int max_names) |
| 1041 | { |
| 1042 | int i; |
| 1043 | LFWIclosurePtr c; |
| 1044 | |
| 1045 | /* |
| 1046 | * The right error to return here would be BadName, however the |
| 1047 | * specification does not allow for a Name error on this request. |
| 1048 | * Perhaps a better solution would be to return a nil list, i.e. |
| 1049 | * a list containing zero fontnames. |
| 1050 | */ |
| 1051 | if (length > XLFDMAXFONTNAMELEN256) |
| 1052 | return BadAlloc11; |
| 1053 | |
| 1054 | i = XaceHook(XACE_SERVER_ACCESS9, client, DixGetAttrAccess(1<<4)); |
| 1055 | if (i != Success0) |
| 1056 | return i; |
| 1057 | |
| 1058 | if (!(c = malloc(sizeof *c))) |
| 1059 | goto badAlloc; |
| 1060 | c->fpe_list = malloc(sizeof(FontPathElementPtr) * num_fpes); |
| 1061 | if (!c->fpe_list) { |
| 1062 | free(c); |
| 1063 | goto badAlloc; |
| 1064 | } |
| 1065 | memmove(c->current.pattern, pattern, length)__builtin___memmove_chk (c->current.pattern, pattern, length , __builtin_object_size (c->current.pattern, 0)); |
| 1066 | for (i = 0; i < num_fpes; i++) { |
| 1067 | c->fpe_list[i] = font_path_elements[i]; |
| 1068 | UseFPE(c->fpe_list[i]); |
| 1069 | } |
| 1070 | c->client = client; |
| 1071 | c->num_fpes = num_fpes; |
| 1072 | c->reply = 0; |
| 1073 | c->length = 0; |
| 1074 | c->current.patlen = length; |
| 1075 | c->current.current_fpe = 0; |
| 1076 | c->current.max_names = max_names; |
| 1077 | c->current.list_started = FALSE0; |
| 1078 | c->current.private = 0; |
| 1079 | c->savedNumFonts = 0; |
| 1080 | c->haveSaved = FALSE0; |
| 1081 | c->savedName = 0; |
| 1082 | doListFontsWithInfo(client, c); |
| 1083 | return Success0; |
| 1084 | badAlloc: |
| 1085 | return BadAlloc11; |
| 1086 | } |
| 1087 | |
| 1088 | #define TextEltHeader 2 |
| 1089 | #define FontShiftSize 5 |
| 1090 | static ChangeGCVal clearGC[] = { {.ptr = NullPixmap((PixmapPtr)0)} }; |
| 1091 | |
| 1092 | #define clearGCmask((1L<<19)) (GCClipMask(1L<<19)) |
| 1093 | |
| 1094 | int |
| 1095 | doPolyText(ClientPtr client, PTclosurePtr c) |
| 1096 | { |
| 1097 | FontPtr pFont = c->pGC->font, oldpFont; |
| 1098 | int err = Success0, lgerr; /* err is in X error, not font error, space */ |
| 1099 | enum { NEVER_SLEPT, START_SLEEP, SLEEPING } client_state = NEVER_SLEPT; |
| 1100 | FontPathElementPtr fpe; |
| 1101 | GC *origGC = NULL((void*)0); |
| 1102 | int itemSize = c->reqType == X_PolyText874 ? 1 : 2; |
| 1103 | |
| 1104 | if (client->clientGone) { |
| 1105 | fpe = c->pGC->font->fpe; |
| 1106 | (*fpe_functions[fpe->type].client_died) ((void *) client, fpe); |
| 1107 | |
| 1108 | if (ClientIsAsleep(client)) { |
| 1109 | /* Client has died, but we cannot bail out right now. We |
| 1110 | need to clean up after the work we did when going to |
| 1111 | sleep. Setting the drawable poiner to 0 makes this |
| 1112 | happen without any attempts to render or perform other |
| 1113 | unnecessary activities. */ |
| 1114 | c->pDraw = (DrawablePtr) 0; |
| 1115 | } |
| 1116 | else { |
| 1117 | err = Success0; |
| 1118 | goto bail; |
| 1119 | } |
| 1120 | } |
| 1121 | |
| 1122 | /* Make sure our drawable hasn't disappeared while we slept. */ |
| 1123 | if (ClientIsAsleep(client) && c->pDraw) { |
| 1124 | DrawablePtr pDraw; |
| 1125 | |
| 1126 | dixLookupDrawable(&pDraw, c->did, client, 0, DixWriteAccess(1<<1)); |
| 1127 | if (c->pDraw != pDraw) { |
| 1128 | /* Our drawable has disappeared. Treat like client died... ask |
| 1129 | the FPE code to clean up after client and avoid further |
| 1130 | rendering while we clean up after ourself. */ |
| 1131 | fpe = c->pGC->font->fpe; |
| 1132 | (*fpe_functions[fpe->type].client_died) ((void *) client, fpe); |
| 1133 | c->pDraw = (DrawablePtr) 0; |
| 1134 | } |
| 1135 | } |
| 1136 | |
| 1137 | client_state = ClientIsAsleep(client) ? SLEEPING : NEVER_SLEPT; |
| 1138 | |
| 1139 | while (c->endReq - c->pElt > TextEltHeader) { |
| 1140 | if (*c->pElt == FontChange255) { |
| 1141 | Font fid; |
| 1142 | |
| 1143 | if (c->endReq - c->pElt < FontShiftSize) { |
| 1144 | err = BadLength16; |
| 1145 | goto bail; |
| 1146 | } |
| 1147 | |
| 1148 | oldpFont = pFont; |
| 1149 | |
| 1150 | fid = ((Font) *(c->pElt + 4)) /* big-endian */ |
| 1151 | |((Font) *(c->pElt + 3)) << 8 |
| 1152 | | ((Font) *(c->pElt + 2)) << 16 | ((Font) *(c->pElt + 1)) << 24; |
| 1153 | err = dixLookupResourceByType((void **) &pFont, fid, RT_FONT((RESTYPE)4), |
| 1154 | client, DixUseAccess(1<<24)); |
| 1155 | if (err != Success0) { |
| 1156 | /* restore pFont for step 4 (described below) */ |
| 1157 | pFont = oldpFont; |
| 1158 | |
| 1159 | /* If we're in START_SLEEP mode, the following step |
| 1160 | shortens the request... in the unlikely event that |
| 1161 | the fid somehow becomes valid before we come through |
| 1162 | again to actually execute the polytext, which would |
| 1163 | then mess up our refcounting scheme badly. */ |
| 1164 | c->err = err; |
| 1165 | c->endReq = c->pElt; |
| 1166 | |
| 1167 | goto bail; |
| 1168 | } |
| 1169 | |
| 1170 | /* Step 3 (described below) on our new font */ |
| 1171 | if (client_state == START_SLEEP) |
| 1172 | pFont->refcnt++; |
| 1173 | else { |
| 1174 | if (pFont != c->pGC->font && c->pDraw) { |
| 1175 | ChangeGCVal val; |
| 1176 | |
| 1177 | val.ptr = pFont; |
| 1178 | ChangeGC(NullClient((ClientPtr) 0), c->pGC, GCFont(1L<<14), &val); |
| 1179 | ValidateGC(c->pDraw, c->pGC); |
| 1180 | } |
| 1181 | |
| 1182 | /* Undo the refcnt++ we performed when going to sleep */ |
| 1183 | if (client_state == SLEEPING) |
| 1184 | (void) CloseFont(c->pGC->font, (Font) 0); |
| 1185 | } |
| 1186 | c->pElt += FontShiftSize; |
| 1187 | } |
| 1188 | else { /* print a string */ |
| 1189 | |
| 1190 | unsigned char *pNextElt; |
| 1191 | |
| 1192 | pNextElt = c->pElt + TextEltHeader + (*c->pElt) * itemSize; |
| 1193 | if (pNextElt > c->endReq) { |
| 1194 | err = BadLength16; |
| 1195 | goto bail; |
| 1196 | } |
| 1197 | if (client_state == START_SLEEP) { |
| 1198 | c->pElt = pNextElt; |
| 1199 | continue; |
| 1200 | } |
| 1201 | if (c->pDraw) { |
| 1202 | lgerr = LoadGlyphs(client, c->pGC->font, *c->pElt, itemSize, |
| 1203 | c->pElt + TextEltHeader); |
| 1204 | } |
| 1205 | else |
| 1206 | lgerr = Successful85; |
| 1207 | |
| 1208 | if (lgerr == Suspended84) { |
| 1209 | if (!ClientIsAsleep(client)) { |
| 1210 | int len; |
| 1211 | GC *pGC; |
| 1212 | PTclosurePtr new_closure; |
| 1213 | |
| 1214 | /* We're putting the client to sleep. We need to do a few things |
| 1215 | to ensure successful and atomic-appearing execution of the |
| 1216 | remainder of the request. First, copy the remainder of the |
| 1217 | request into a safe malloc'd area. Second, create a scratch GC |
| 1218 | to use for the remainder of the request. Third, mark all fonts |
| 1219 | referenced in the remainder of the request to prevent their |
| 1220 | deallocation. Fourth, make the original GC look like the |
| 1221 | request has completed... set its font to the final font value |
| 1222 | from this request. These GC manipulations are for the unlikely |
| 1223 | (but possible) event that some other client is using the GC. |
| 1224 | Steps 3 and 4 are performed by running this procedure through |
| 1225 | the remainder of the request in a special no-render mode |
| 1226 | indicated by client_state = START_SLEEP. */ |
| 1227 | |
| 1228 | /* Step 1 */ |
| 1229 | /* Allocate a malloc'd closure structure to replace |
| 1230 | the local one we were passed */ |
| 1231 | new_closure = malloc(sizeof(PTclosureRec)); |
| 1232 | if (!new_closure) { |
| 1233 | err = BadAlloc11; |
| 1234 | goto bail; |
| 1235 | } |
| 1236 | *new_closure = *c; |
| 1237 | |
| 1238 | len = new_closure->endReq - new_closure->pElt; |
| 1239 | new_closure->data = malloc(len); |
| 1240 | if (!new_closure->data) { |
| 1241 | free(new_closure); |
| 1242 | err = BadAlloc11; |
| 1243 | goto bail; |
| 1244 | } |
| 1245 | memmove(new_closure->data, new_closure->pElt, len)__builtin___memmove_chk (new_closure->data, new_closure-> pElt, len, __builtin_object_size (new_closure->data, 0)); |
| 1246 | new_closure->pElt = new_closure->data; |
| 1247 | new_closure->endReq = new_closure->pElt + len; |
| 1248 | |
| 1249 | /* Step 2 */ |
| 1250 | |
| 1251 | pGC = |
| 1252 | GetScratchGC(new_closure->pGC->depth, |
| 1253 | new_closure->pGC->pScreen); |
| 1254 | if (!pGC) { |
| 1255 | free(new_closure->data); |
| 1256 | free(new_closure); |
| 1257 | err = BadAlloc11; |
| 1258 | goto bail; |
| 1259 | } |
| 1260 | if ((err = CopyGC(new_closure->pGC, pGC, GCFunction(1L<<0) | |
| 1261 | GCPlaneMask(1L<<1) | GCForeground(1L<<2) | |
| 1262 | GCBackground(1L<<3) | GCFillStyle(1L<<8) | |
| 1263 | GCTile(1L<<10) | GCStipple(1L<<11) | |
| 1264 | GCTileStipXOrigin(1L<<12) | |
| 1265 | GCTileStipYOrigin(1L<<13) | GCFont(1L<<14) | |
| 1266 | GCSubwindowMode(1L<<15) | GCClipXOrigin(1L<<17) | |
| 1267 | GCClipYOrigin(1L<<18) | GCClipMask(1L<<19))) != Success0) { |
| 1268 | FreeScratchGC(pGC); |
| 1269 | free(new_closure->data); |
| 1270 | free(new_closure); |
| 1271 | err = BadAlloc11; |
| 1272 | goto bail; |
| 1273 | } |
| 1274 | c = new_closure; |
| 1275 | origGC = c->pGC; |
| 1276 | c->pGC = pGC; |
| 1277 | ValidateGC(c->pDraw, c->pGC); |
| 1278 | |
| 1279 | ClientSleep(client, (ClientSleepProcPtr) doPolyText, c); |
| 1280 | |
| 1281 | /* Set up to perform steps 3 and 4 */ |
| 1282 | client_state = START_SLEEP; |
| 1283 | continue; /* on to steps 3 and 4 */ |
| 1284 | } |
| 1285 | return TRUE1; |
| 1286 | } |
| 1287 | else if (lgerr != Successful85) { |
| 1288 | err = FontToXError(lgerr); |
| 1289 | goto bail; |
| 1290 | } |
| 1291 | if (c->pDraw) { |
| 1292 | c->xorg += *((INT8 *) (c->pElt + 1)); /* must be signed */ |
| 1293 | if (c->reqType == X_PolyText874) |
| 1294 | c->xorg = |
| 1295 | (*c->pGC->ops->PolyText8) (c->pDraw, c->pGC, c->xorg, |
| 1296 | c->yorg, *c->pElt, |
| 1297 | (char *) (c->pElt + |
| 1298 | TextEltHeader)); |
| 1299 | else |
| 1300 | c->xorg = |
| 1301 | (*c->pGC->ops->PolyText16) (c->pDraw, c->pGC, c->xorg, |
| 1302 | c->yorg, *c->pElt, |
| 1303 | (unsigned short *) (c-> |
| 1304 | pElt + |
| 1305 | TextEltHeader)); |
| 1306 | } |
| 1307 | c->pElt = pNextElt; |
| 1308 | } |
| 1309 | } |
| 1310 | |
| 1311 | bail: |
| 1312 | |
| 1313 | if (client_state == START_SLEEP) { |
| 1314 | /* Step 4 */ |
| 1315 | if (pFont != origGC->font) { |
| 1316 | ChangeGCVal val; |
| 1317 | |
| 1318 | val.ptr = pFont; |
| 1319 | ChangeGC(NullClient((ClientPtr) 0), origGC, GCFont(1L<<14), &val); |
| 1320 | ValidateGC(c->pDraw, origGC); |
| 1321 | } |
| 1322 | |
| 1323 | /* restore pElt pointer for execution of remainder of the request */ |
| 1324 | c->pElt = c->data; |
| 1325 | return TRUE1; |
| 1326 | } |
| 1327 | |
| 1328 | if (c->err != Success0) |
| 1329 | err = c->err; |
| 1330 | if (err != Success0 && c->client != serverClient) { |
| 1331 | #ifdef PANORAMIX1 |
| 1332 | if (noPanoramiXExtension || !c->pGC->pScreen->myNum) |
| 1333 | #endif |
| 1334 | SendErrorToClient(c->client, c->reqType, 0, 0, err); |
| 1335 | } |
| 1336 | if (ClientIsAsleep(client)) { |
| 1337 | ClientWakeup(c->client); |
| 1338 | ChangeGC(NullClient((ClientPtr) 0), c->pGC, clearGCmask((1L<<19)), clearGC); |
| 1339 | |
| 1340 | /* Unreference the font from the scratch GC */ |
| 1341 | CloseFont(c->pGC->font, (Font) 0); |
| 1342 | c->pGC->font = NullFont((FontPtr) 0); |
| 1343 | |
| 1344 | FreeScratchGC(c->pGC); |
| 1345 | free(c->data); |
| 1346 | free(c); |
| 1347 | } |
| 1348 | return TRUE1; |
| 1349 | } |
| 1350 | |
| 1351 | int |
| 1352 | PolyText(ClientPtr client, DrawablePtr pDraw, GC * pGC, unsigned char *pElt, |
| 1353 | unsigned char *endReq, int xorg, int yorg, int reqType, XID did) |
| 1354 | { |
| 1355 | PTclosureRec local_closure; |
| 1356 | |
| 1357 | local_closure.pElt = pElt; |
| 1358 | local_closure.endReq = endReq; |
| 1359 | local_closure.client = client; |
| 1360 | local_closure.pDraw = pDraw; |
| 1361 | local_closure.xorg = xorg; |
| 1362 | local_closure.yorg = yorg; |
| 1363 | local_closure.reqType = reqType; |
| 1364 | local_closure.pGC = pGC; |
| 1365 | local_closure.did = did; |
| 1366 | local_closure.err = Success0; |
| 1367 | |
| 1368 | (void) doPolyText(client, &local_closure); |
| 1369 | return Success0; |
| 1370 | } |
| 1371 | |
| 1372 | #undef TextEltHeader |
| 1373 | #undef FontShiftSize |
| 1374 | |
| 1375 | int |
| 1376 | doImageText(ClientPtr client, ITclosurePtr c) |
| 1377 | { |
| 1378 | int err = Success0, lgerr; /* err is in X error, not font error, space */ |
| 1379 | FontPathElementPtr fpe; |
| 1380 | int itemSize = c->reqType == X_ImageText876 ? 1 : 2; |
| 1381 | |
| 1382 | if (client->clientGone) { |
| 1383 | fpe = c->pGC->font->fpe; |
| 1384 | (*fpe_functions[fpe->type].client_died) ((void *) client, fpe); |
| 1385 | err = Success0; |
| 1386 | goto bail; |
| 1387 | } |
| 1388 | |
| 1389 | /* Make sure our drawable hasn't disappeared while we slept. */ |
| 1390 | if (ClientIsAsleep(client) && c->pDraw) { |
| 1391 | DrawablePtr pDraw; |
| 1392 | |
| 1393 | dixLookupDrawable(&pDraw, c->did, client, 0, DixWriteAccess(1<<1)); |
| 1394 | if (c->pDraw != pDraw) { |
| 1395 | /* Our drawable has disappeared. Treat like client died... ask |
| 1396 | the FPE code to clean up after client. */ |
| 1397 | fpe = c->pGC->font->fpe; |
| 1398 | (*fpe_functions[fpe->type].client_died) ((void *) client, fpe); |
| 1399 | err = Success0; |
| 1400 | goto bail; |
| 1401 | } |
| 1402 | } |
| 1403 | |
| 1404 | lgerr = LoadGlyphs(client, c->pGC->font, c->nChars, itemSize, c->data); |
| 1405 | if (lgerr == Suspended84) { |
| 1406 | if (!ClientIsAsleep(client)) { |
| 1407 | GC *pGC; |
| 1408 | unsigned char *data; |
| 1409 | ITclosurePtr new_closure; |
| 1410 | ITclosurePtr old_closure; |
| 1411 | |
| 1412 | /* We're putting the client to sleep. We need to |
| 1413 | save some state. Similar problem to that handled |
| 1414 | in doPolyText, but much simpler because the |
| 1415 | request structure is much simpler. */ |
| 1416 | |
| 1417 | new_closure = malloc(sizeof(ITclosureRec)); |
| 1418 | if (!new_closure) { |
| 1419 | err = BadAlloc11; |
| 1420 | goto bail; |
| 1421 | } |
| 1422 | old_closure = c; |
| 1423 | *new_closure = *c; |
| 1424 | c = new_closure; |
| 1425 | |
| 1426 | data = malloc(c->nChars * itemSize); |
| 1427 | if (!data) { |
| 1428 | free(c); |
| 1429 | c = old_closure; |
| 1430 | err = BadAlloc11; |
| 1431 | goto bail; |
| 1432 | } |
| 1433 | memmove(data, c->data, c->nChars * itemSize)__builtin___memmove_chk (data, c->data, c->nChars * itemSize , __builtin_object_size (data, 0)); |
| 1434 | c->data = data; |
| 1435 | |
| 1436 | pGC = GetScratchGC(c->pGC->depth, c->pGC->pScreen); |
| 1437 | if (!pGC) { |
| 1438 | free(c->data); |
| 1439 | free(c); |
| 1440 | c = old_closure; |
| 1441 | err = BadAlloc11; |
| 1442 | goto bail; |
| 1443 | } |
| 1444 | if ((err = CopyGC(c->pGC, pGC, GCFunction(1L<<0) | GCPlaneMask(1L<<1) | |
| 1445 | GCForeground(1L<<2) | GCBackground(1L<<3) | GCFillStyle(1L<<8) | |
| 1446 | GCTile(1L<<10) | GCStipple(1L<<11) | GCTileStipXOrigin(1L<<12) | |
| 1447 | GCTileStipYOrigin(1L<<13) | GCFont(1L<<14) | |
| 1448 | GCSubwindowMode(1L<<15) | GCClipXOrigin(1L<<17) | |
| 1449 | GCClipYOrigin(1L<<18) | GCClipMask(1L<<19))) != Success0) { |
| 1450 | FreeScratchGC(pGC); |
| 1451 | free(c->data); |
| 1452 | free(c); |
| 1453 | c = old_closure; |
| 1454 | err = BadAlloc11; |
| 1455 | goto bail; |
| 1456 | } |
| 1457 | c->pGC = pGC; |
| 1458 | ValidateGC(c->pDraw, c->pGC); |
| 1459 | |
| 1460 | ClientSleep(client, (ClientSleepProcPtr) doImageText, c); |
| 1461 | } |
| 1462 | return TRUE1; |
| 1463 | } |
| 1464 | else if (lgerr != Successful85) { |
| 1465 | err = FontToXError(lgerr); |
| 1466 | goto bail; |
| 1467 | } |
| 1468 | if (c->pDraw) { |
| 1469 | if (c->reqType == X_ImageText876) |
| 1470 | (*c->pGC->ops->ImageText8) (c->pDraw, c->pGC, c->xorg, c->yorg, |
| 1471 | c->nChars, (char *) c->data); |
| 1472 | else |
| 1473 | (*c->pGC->ops->ImageText16) (c->pDraw, c->pGC, c->xorg, c->yorg, |
| 1474 | c->nChars, (unsigned short *) c->data); |
| 1475 | } |
| 1476 | |
| 1477 | bail: |
| 1478 | |
| 1479 | if (err != Success0 && c->client != serverClient) { |
| 1480 | SendErrorToClient(c->client, c->reqType, 0, 0, err); |
| 1481 | } |
| 1482 | if (ClientIsAsleep(client)) { |
| 1483 | ClientWakeup(c->client); |
| 1484 | ChangeGC(NullClient((ClientPtr) 0), c->pGC, clearGCmask((1L<<19)), clearGC); |
| 1485 | |
| 1486 | /* Unreference the font from the scratch GC */ |
| 1487 | CloseFont(c->pGC->font, (Font) 0); |
| 1488 | c->pGC->font = NullFont((FontPtr) 0); |
| 1489 | |
| 1490 | FreeScratchGC(c->pGC); |
| 1491 | free(c->data); |
| 1492 | free(c); |
| 1493 | } |
| 1494 | return TRUE1; |
| 1495 | } |
| 1496 | |
| 1497 | int |
| 1498 | ImageText(ClientPtr client, DrawablePtr pDraw, GC * pGC, int nChars, |
| 1499 | unsigned char *data, int xorg, int yorg, int reqType, XID did) |
| 1500 | { |
| 1501 | ITclosureRec local_closure; |
| 1502 | |
| 1503 | local_closure.client = client; |
| 1504 | local_closure.pDraw = pDraw; |
| 1505 | local_closure.pGC = pGC; |
| 1506 | local_closure.nChars = nChars; |
| 1507 | local_closure.data = data; |
| 1508 | local_closure.xorg = xorg; |
| 1509 | local_closure.yorg = yorg; |
| 1510 | local_closure.reqType = reqType; |
| 1511 | local_closure.did = did; |
| 1512 | |
| 1513 | (void) doImageText(client, &local_closure); |
| 1514 | return Success0; |
| 1515 | } |
| 1516 | |
| 1517 | /* does the necessary magic to figure out the fpe type */ |
| 1518 | static int |
| 1519 | DetermineFPEType(const char *pathname) |
| 1520 | { |
| 1521 | int i; |
| 1522 | |
| 1523 | for (i = 0; i < num_fpe_types; i++) { |
| 1524 | if ((*fpe_functions[i].name_check) (pathname)) |
| 1525 | return i; |
| 1526 | } |
| 1527 | return -1; |
| 1528 | } |
| 1529 | |
| 1530 | static void |
| 1531 | FreeFontPath(FontPathElementPtr * list, int n, Bool force) |
| 1532 | { |
| 1533 | int i; |
| 1534 | |
| 1535 | for (i = 0; i < n; i++) { |
| 1536 | if (force) { |
| 1537 | /* Sanity check that all refcounts will be 0 by the time |
| 1538 | we get to the end of the list. */ |
| 1539 | int found = 1; /* the first reference is us */ |
| 1540 | int j; |
| 1541 | |
| 1542 | for (j = i + 1; j < n; j++) { |
| 1543 | if (list[j] == list[i]) |
| 1544 | found++; |
| 1545 | } |
| 1546 | if (list[i]->refcount != found) { |
| 1547 | list[i]->refcount = found; /* ensure it will get freed */ |
| 1548 | } |
| 1549 | } |
| 1550 | FreeFPE(list[i]); |
| 1551 | } |
| 1552 | free(list); |
| 1553 | } |
| 1554 | |
| 1555 | static FontPathElementPtr |
| 1556 | find_existing_fpe(FontPathElementPtr * list, int num, unsigned char *name, |
| 1557 | int len) |
| 1558 | { |
| 1559 | FontPathElementPtr fpe; |
| 1560 | int i; |
| 1561 | |
| 1562 | for (i = 0; i < num; i++) { |
| 1563 | fpe = list[i]; |
| 1564 | if (fpe->name_length == len && memcmp(name, fpe->name, len) == 0) |
| 1565 | return fpe; |
| 1566 | } |
| 1567 | return (FontPathElementPtr) 0; |
| 1568 | } |
| 1569 | |
| 1570 | static int |
| 1571 | SetFontPathElements(int npaths, unsigned char *paths, int *bad, Bool persist) |
| 1572 | { |
| 1573 | int i, err = 0; |
| 1574 | int valid_paths = 0; |
| 1575 | unsigned int len; |
| 1576 | unsigned char *cp = paths; |
| 1577 | FontPathElementPtr fpe = NULL((void*)0), *fplist; |
| 1578 | |
| 1579 | fplist = malloc(sizeof(FontPathElementPtr) * npaths); |
| 1580 | if (!fplist) { |
| 1581 | *bad = 0; |
| 1582 | return BadAlloc11; |
| 1583 | } |
| 1584 | for (i = 0; i < num_fpe_types; i++) { |
| 1585 | if (fpe_functions[i].set_path_hook) |
| 1586 | (*fpe_functions[i].set_path_hook) (); |
| 1587 | } |
| 1588 | for (i = 0; i < npaths; i++) { |
| 1589 | len = (unsigned int) (*cp++); |
| 1590 | |
| 1591 | if (len == 0) { |
| 1592 | if (persist) |
| 1593 | ErrorF |
| 1594 | ("[dix] Removing empty element from the valid list of fontpaths\n"); |
| 1595 | err = BadValue2; |
| 1596 | } |
| 1597 | else { |
| 1598 | /* if it's already in our active list, just reset it */ |
| 1599 | /* |
| 1600 | * note that this can miss FPE's in limbo -- may be worth catching |
| 1601 | * them, though it'd muck up refcounting |
| 1602 | */ |
| 1603 | fpe = find_existing_fpe(font_path_elements, num_fpes, cp, len); |
| 1604 | if (fpe) { |
| 1605 | err = (*fpe_functions[fpe->type].reset_fpe) (fpe); |
| 1606 | if (err == Successful85) { |
| 1607 | UseFPE(fpe); /* since it'll be decref'd later when freed |
| 1608 | * from the old list */ |
| 1609 | } |
| 1610 | else |
| 1611 | fpe = 0; |
| 1612 | } |
| 1613 | /* if error or can't do it, act like it's a new one */ |
| 1614 | if (!fpe) { |
| 1615 | char *name; |
| 1616 | fpe = malloc(sizeof(FontPathElementRec)); |
| 1617 | if (!fpe) { |
| 1618 | err = BadAlloc11; |
| 1619 | goto bail; |
| 1620 | } |
| 1621 | name = malloc(len + 1); |
| 1622 | if (!name) { |
| 1623 | free(fpe); |
| 1624 | err = BadAlloc11; |
| 1625 | goto bail; |
| 1626 | } |
| 1627 | fpe->refcount = 1; |
| 1628 | |
| 1629 | strncpy(name, (char *) cp, (int) len)__builtin___strncpy_chk (name, (char *) cp, (int) len, __builtin_object_size (name, 2 > 1 ? 1 : 0)); |
| 1630 | name[len] = '\0'; |
| 1631 | fpe->name = name; |
| 1632 | fpe->name_length = len; |
| 1633 | fpe->type = DetermineFPEType(fpe->name); |
| 1634 | if (fpe->type == -1) |
| 1635 | err = BadValue2; |
| 1636 | else |
| 1637 | err = (*fpe_functions[fpe->type].init_fpe) (fpe); |
| 1638 | if (err != Successful85) { |
| 1639 | if (persist) { |
| 1640 | DebugF |
| 1641 | ("[dix] Could not init font path element %s, removing from list!\n", |
| 1642 | fpe->name); |
| 1643 | } |
| 1644 | free((void *) fpe->name); |
| 1645 | free(fpe); |
| 1646 | } |
| 1647 | } |
| 1648 | } |
| 1649 | if (err != Successful85) { |
| 1650 | if (!persist) |
| 1651 | goto bail; |
| 1652 | } |
| 1653 | else { |
| 1654 | fplist[valid_paths++] = fpe; |
| 1655 | } |
| 1656 | cp += len; |
| 1657 | } |
| 1658 | |
| 1659 | FreeFontPath(font_path_elements, num_fpes, FALSE0); |
| 1660 | font_path_elements = fplist; |
| 1661 | if (patternCache) |
| 1662 | EmptyFontPatternCache(patternCache); |
| 1663 | num_fpes = valid_paths; |
| 1664 | |
| 1665 | return Success0; |
| 1666 | bail: |
| 1667 | *bad = i; |
| 1668 | while (--valid_paths >= 0) |
| 1669 | FreeFPE(fplist[valid_paths]); |
| 1670 | free(fplist); |
| 1671 | return FontToXError(err); |
| 1672 | } |
| 1673 | |
| 1674 | int |
| 1675 | SetFontPath(ClientPtr client, int npaths, unsigned char *paths) |
| 1676 | { |
| 1677 | int err = XaceHook(XACE_SERVER_ACCESS9, client, DixManageAccess(1<<25)); |
| 1678 | |
| 1679 | if (err != Success0) |
| 1680 | return err; |
| 1681 | |
| 1682 | if (npaths == 0) { |
| 1683 | if (SetDefaultFontPath(defaultFontPath) != Success0) |
| 1684 | return BadValue2; |
| 1685 | } |
| 1686 | else { |
| 1687 | int bad; |
| 1688 | |
| 1689 | err = SetFontPathElements(npaths, paths, &bad, FALSE0); |
| 1690 | client->errorValue = bad; |
| 1691 | } |
| 1692 | return err; |
| 1693 | } |
| 1694 | |
| 1695 | int |
| 1696 | SetDefaultFontPath(const char *path) |
| 1697 | { |
| 1698 | const char *start, *end; |
| 1699 | char *temp_path; |
| 1700 | unsigned char *cp, *pp, *nump, *newpath; |
| 1701 | int num = 1, len, err, size = 0, bad; |
| 1702 | |
| 1703 | /* ensure temp_path contains "built-ins" */ |
| 1704 | start = path; |
| 1705 | while (1) { |
| 1706 | start = strstr(start, "built-ins"); |
| 1707 | if (start == NULL((void*)0)) |
| 1708 | break; |
| 1709 | end = start + strlen("built-ins"); |
| 1710 | if ((start == path || start[-1] == ',') && (!*end || *end == ',')) |
| 1711 | break; |
| 1712 | start = end; |
| 1713 | } |
| 1714 | if (!start) { |
| 1715 | if (asprintf(&temp_path, "%s%sbuilt-ins", path, *path ? "," : "") |
| 1716 | == -1) |
| 1717 | temp_path = NULL((void*)0); |
| 1718 | } |
| 1719 | else { |
| 1720 | temp_path = strdup(path); |
| 1721 | } |
| 1722 | if (!temp_path) |
| 1723 | return BadAlloc11; |
| 1724 | |
| 1725 | /* get enough for string, plus values -- use up commas */ |
| 1726 | len = strlen(temp_path) + 1; |
| 1727 | nump = cp = newpath = malloc(len); |
| 1728 | if (!newpath) { |
| 1729 | free(temp_path); |
| 1730 | return BadAlloc11; |
| 1731 | } |
| 1732 | pp = (unsigned char *) temp_path; |
| 1733 | cp++; |
| 1734 | while (*pp) { |
| 1735 | if (*pp == ',') { |
| 1736 | *nump = (unsigned char) size; |
| 1737 | nump = cp++; |
| 1738 | pp++; |
| 1739 | num++; |
| 1740 | size = 0; |
| 1741 | } |
| 1742 | else { |
| 1743 | *cp++ = *pp++; |
| 1744 | size++; |
| 1745 | } |
| 1746 | } |
| 1747 | *nump = (unsigned char) size; |
| 1748 | |
| 1749 | err = SetFontPathElements(num, newpath, &bad, TRUE1); |
| 1750 | |
| 1751 | free(newpath); |
| 1752 | free(temp_path); |
| 1753 | |
| 1754 | return err; |
| 1755 | } |
| 1756 | |
| 1757 | int |
| 1758 | GetFontPath(ClientPtr client, int *count, int *length, unsigned char **result) |
| 1759 | { |
| 1760 | int i; |
| 1761 | unsigned char *c; |
| 1762 | int len; |
| 1763 | FontPathElementPtr fpe; |
| 1764 | |
| 1765 | i = XaceHook(XACE_SERVER_ACCESS9, client, DixGetAttrAccess(1<<4)); |
| 1766 | if (i != Success0) |
| 1767 | return i; |
| 1768 | |
| 1769 | len = 0; |
| 1770 | for (i = 0; i < num_fpes; i++) { |
| 1771 | fpe = font_path_elements[i]; |
| 1772 | len += fpe->name_length + 1; |
| 1773 | } |
| 1774 | c = realloc(font_path_string, len); |
| 1775 | if (c == NULL((void*)0)) { |
| 1776 | free(font_path_string); |
| 1777 | font_path_string = NULL((void*)0); |
| 1778 | return BadAlloc11; |
| 1779 | } |
| 1780 | |
| 1781 | font_path_string = c; |
| 1782 | *length = 0; |
| 1783 | for (i = 0; i < num_fpes; i++) { |
| 1784 | fpe = font_path_elements[i]; |
| 1785 | *c = fpe->name_length; |
| 1786 | *length += *c++; |
| 1787 | memmove(c, fpe->name, fpe->name_length)__builtin___memmove_chk (c, fpe->name, fpe->name_length , __builtin_object_size (c, 0)); |
| 1788 | c += fpe->name_length; |
| 1789 | } |
| 1790 | *count = num_fpes; |
| 1791 | *result = font_path_string; |
| 1792 | return Success0; |
| 1793 | } |
| 1794 | |
| 1795 | void |
| 1796 | DeleteClientFontStuff(ClientPtr client) |
| 1797 | { |
| 1798 | int i; |
| 1799 | FontPathElementPtr fpe; |
| 1800 | |
| 1801 | for (i = 0; i < num_fpes; i++) { |
| 1802 | fpe = font_path_elements[i]; |
| 1803 | if (fpe_functions[fpe->type].client_died) |
| 1804 | (*fpe_functions[fpe->type].client_died) ((void *) client, fpe); |
| 1805 | } |
| 1806 | } |
| 1807 | |
| 1808 | void |
| 1809 | InitFontsDarwin_X_InitFonts(void) |
| 1810 | { |
| 1811 | patternCache = MakeFontPatternCache(); |
| 1812 | |
| 1813 | register_fpe_functions(); |
| 1814 | } |
| 1815 | |
| 1816 | _X_EXPORT__attribute__((visibility("default"))) |
| 1817 | int |
| 1818 | GetDefaultPointSize(void) |
| 1819 | { |
| 1820 | return 120; |
| 1821 | } |
| 1822 | |
| 1823 | _X_EXPORT__attribute__((visibility("default"))) |
| 1824 | FontResolutionPtr |
| 1825 | GetClientResolutions(int *num) |
| 1826 | { |
| 1827 | static struct _FontResolution res; |
| 1828 | ScreenPtr pScreen; |
| 1829 | |
| 1830 | pScreen = screenInfo.screens[0]; |
| 1831 | res.x_resolution = (pScreen->width * 25.4) / pScreen->mmWidth; |
| 1832 | /* |
| 1833 | * XXX - we'll want this as long as bitmap instances are prevalent |
| 1834 | so that we can match them from scalable fonts |
| 1835 | */ |
| 1836 | if (res.x_resolution < 88) |
| 1837 | res.x_resolution = 75; |
| 1838 | else |
| 1839 | res.x_resolution = 100; |
| 1840 | res.y_resolution = (pScreen->height * 25.4) / pScreen->mmHeight; |
| 1841 | if (res.y_resolution < 88) |
| 1842 | res.y_resolution = 75; |
| 1843 | else |
| 1844 | res.y_resolution = 100; |
| 1845 | res.point_size = 120; |
| 1846 | *num = 1; |
| 1847 | return &res; |
| 1848 | } |
| 1849 | |
| 1850 | /* |
| 1851 | * returns the type index of the new fpe |
| 1852 | * |
| 1853 | * should be called (only once!) by each type of fpe when initialized |
| 1854 | */ |
| 1855 | |
| 1856 | _X_EXPORT__attribute__((visibility("default"))) |
| 1857 | int |
| 1858 | RegisterFPEFunctions(NameCheckFunc name_func, |
| 1859 | InitFpeFunc init_func, |
| 1860 | FreeFpeFunc free_func, |
| 1861 | ResetFpeFunc reset_func, |
| 1862 | OpenFontFunc open_func, |
| 1863 | CloseFontFunc close_func, |
| 1864 | ListFontsFunc list_func, |
| 1865 | StartLfwiFunc start_lfwi_func, |
| 1866 | NextLfwiFunc next_lfwi_func, |
| 1867 | WakeupFpeFunc wakeup_func, |
| 1868 | ClientDiedFunc client_died, |
| 1869 | LoadGlyphsFunc load_glyphs, |
| 1870 | StartLaFunc start_list_alias_func, |
| 1871 | NextLaFunc next_list_alias_func, SetPathFunc set_path_func) |
| 1872 | { |
| 1873 | FPEFunctions *new; |
| 1874 | |
| 1875 | /* grow the list */ |
| 1876 | new = (FPEFunctions *) realloc(fpe_functions, |
| 1877 | (num_fpe_types + 1) * sizeof(FPEFunctions)); |
| 1878 | if (!new) |
| 1879 | return -1; |
| 1880 | fpe_functions = new; |
| 1881 | |
| 1882 | fpe_functions[num_fpe_types].name_check = name_func; |
| 1883 | fpe_functions[num_fpe_types].open_font = open_func; |
| 1884 | fpe_functions[num_fpe_types].close_font = close_func; |
| 1885 | fpe_functions[num_fpe_types].wakeup_fpe = wakeup_func; |
| 1886 | fpe_functions[num_fpe_types].list_fonts = list_func; |
| 1887 | fpe_functions[num_fpe_types].start_list_fonts_with_info = start_lfwi_func; |
| 1888 | fpe_functions[num_fpe_types].list_next_font_with_info = next_lfwi_func; |
| 1889 | fpe_functions[num_fpe_types].init_fpe = init_func; |
| 1890 | fpe_functions[num_fpe_types].free_fpe = free_func; |
| 1891 | fpe_functions[num_fpe_types].reset_fpe = reset_func; |
| 1892 | fpe_functions[num_fpe_types].client_died = client_died; |
| 1893 | fpe_functions[num_fpe_types].load_glyphs = load_glyphs; |
| 1894 | fpe_functions[num_fpe_types].start_list_fonts_and_aliases = |
| 1895 | start_list_alias_func; |
| 1896 | fpe_functions[num_fpe_types].list_next_font_or_alias = next_list_alias_func; |
| 1897 | fpe_functions[num_fpe_types].set_path_hook = set_path_func; |
| 1898 | |
| 1899 | return num_fpe_types++; |
| 1900 | } |
| 1901 | |
| 1902 | void |
| 1903 | FreeFonts(void) |
| 1904 | { |
| 1905 | if (patternCache) { |
| 1906 | FreeFontPatternCache(patternCache); |
| 1907 | patternCache = 0; |
| 1908 | } |
| 1909 | FreeFontPath(font_path_elements, num_fpes, TRUE1); |
| 1910 | font_path_elements = 0; |
| 1911 | num_fpes = 0; |
| 1912 | free(fpe_functions); |
| 1913 | num_fpe_types = 0; |
| 1914 | fpe_functions = (FPEFunctions *) 0; |
| 1915 | } |
| 1916 | |
| 1917 | /* convenience functions for FS interface */ |
| 1918 | |
| 1919 | FontPtr |
| 1920 | find_old_font(XID id) |
| 1921 | { |
| 1922 | void *pFont; |
| 1923 | |
| 1924 | dixLookupResourceByType(&pFont, id, RT_NONE((RESTYPE)0), serverClient, DixReadAccess(1<<0)); |
| 1925 | return (FontPtr) pFont; |
| 1926 | } |
| 1927 | |
| 1928 | _X_EXPORT__attribute__((visibility("default"))) |
| 1929 | Font |
| 1930 | GetNewFontClientID(void) |
| 1931 | { |
| 1932 | return FakeClientID(0); |
| 1933 | } |
| 1934 | |
| 1935 | _X_EXPORT__attribute__((visibility("default"))) |
| 1936 | int |
| 1937 | StoreFontClientFont(FontPtr pfont, Font id) |
| 1938 | { |
| 1939 | return AddResourceDarwin_X_AddResource(id, RT_NONE((RESTYPE)0), (void *) pfont); |
| 1940 | } |
| 1941 | |
| 1942 | _X_EXPORT__attribute__((visibility("default"))) |
| 1943 | void |
| 1944 | DeleteFontClientID(Font id) |
| 1945 | { |
| 1946 | FreeResource(id, RT_NONE((RESTYPE)0)); |
| 1947 | } |
| 1948 | |
| 1949 | _X_EXPORT__attribute__((visibility("default"))) |
| 1950 | int |
| 1951 | client_auth_generation(ClientPtr client) |
| 1952 | { |
| 1953 | return 0; |
| 1954 | } |
| 1955 | |
| 1956 | static int fs_handlers_installed = 0; |
| 1957 | static unsigned int last_server_gen; |
| 1958 | |
| 1959 | _X_EXPORT__attribute__((visibility("default"))) |
| 1960 | int |
| 1961 | init_fs_handlers(FontPathElementPtr fpe, BlockHandlerProcPtr block_handler) |
| 1962 | { |
| 1963 | /* if server has reset, make sure the b&w handlers are reinstalled */ |
| 1964 | if (last_server_gen < serverGeneration) { |
| 1965 | last_server_gen = serverGeneration; |
| 1966 | fs_handlers_installed = 0; |
| 1967 | } |
| 1968 | if (fs_handlers_installed == 0) { |
| 1969 | if (!RegisterBlockAndWakeupHandlers(block_handler, |
| 1970 | FontWakeup, (void *) 0)) |
| 1971 | return AllocError80; |
| 1972 | fs_handlers_installed++; |
| 1973 | } |
| 1974 | QueueFontWakeup(fpe); |
| 1975 | return Successful85; |
| 1976 | } |
| 1977 | |
| 1978 | _X_EXPORT__attribute__((visibility("default"))) |
| 1979 | void |
| 1980 | remove_fs_handlers(FontPathElementPtr fpe, BlockHandlerProcPtr block_handler, |
| 1981 | Bool all) |
| 1982 | { |
| 1983 | if (all) { |
| 1984 | /* remove the handlers if no one else is using them */ |
| 1985 | if (--fs_handlers_installed == 0) { |
| 1986 | RemoveBlockAndWakeupHandlers(block_handler, FontWakeup, |
| 1987 | (void *) 0); |
| 1988 | } |
| 1989 | } |
| 1990 | RemoveFontWakeup(fpe); |
| 1991 | } |