| 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_H |
| 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 pointer 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 Successful: |
| 93 | return Success; |
| 94 | case AllocError: |
| 95 | return BadAlloc; |
| 96 | case BadFontName: |
| 97 | return BadName; |
| 98 | case BadFontPath: |
| 99 | case BadFontFormat: /* is there something better? */ |
| 100 | case BadCharRange: |
| 101 | return BadValue; |
| 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 Successful; |
| 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(char *defaultfontname) |
| 132 | { |
| 133 | int err; |
| 134 | FontPtr pf; |
| 135 | XID fid; |
| 136 | |
| 137 | fid = FakeClientID(0); |
| 138 | err = OpenFont(serverClient, fid, FontLoadAll | FontOpenSync, |
| 139 | (unsigned) strlen(defaultfontname), defaultfontname); |
| 140 | if (err != Success) |
| 141 | return FALSE; |
| 142 | err = dixLookupResourceByType((pointer *) &pf, fid, RT_FONT, serverClient, |
| 143 | DixReadAccess); |
| 144 | if (err != Success) |
| 145 | return FALSE; |
| 146 | defaultFont = pf; |
| 147 | return TRUE; |
| 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(pointer data, int count, pointer 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(fpe->name); |
| 228 | free(fpe); |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | static Bool |
| 233 | doOpenFont(ClientPtr client, OFclosurePtr c) |
| 234 | { |
| 235 | FontPtr pfont = NullFont; |
| 236 | FontPathElementPtr fpe = NULL; |
| 237 | ScreenPtr pScr; |
| 238 | int err = Successful; |
| 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 == LSBFirst) ? |
| 249 | BitmapFormatByteOrderLSB : BitmapFormatByteOrderMSB) | |
| 250 | ((screenInfo.bitmapBitOrder == LSBFirst) ? |
| 251 | BitmapFormatBitOrderLSB : BitmapFormatBitOrderMSB) | |
| 252 | BitmapFormatImageRectMin | |
| 253 | #if GLYPHPADBYTES == 1 |
| 254 | BitmapFormatScanlinePad8 | |
| 255 | #endif |
| 256 | #if GLYPHPADBYTES == 2 |
| 257 | BitmapFormatScanlinePad16 | |
| 258 | #endif |
| 259 | #if GLYPHPADBYTES == 4 |
| 260 | BitmapFormatScanlinePad32 | |
| 261 | #endif |
| 262 | #if GLYPHPADBYTES == 8 |
| 263 | BitmapFormatScanlinePad64 | |
| 264 | #endif |
| 265 | BitmapFormatScanlineUnit8; |
| 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) ((pointer) client, fpe); |
| 271 | } |
| 272 | err = Successful; |
| 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 | ((pointer) client, fpe, c->flags, |
| 279 | c->fontname, c->fnamelen, FontFormat, |
| 280 | BitmapFormatMaskByte | |
| 281 | BitmapFormatMaskBit | |
| 282 | BitmapFormatMaskImageRectangle | |
| 283 | BitmapFormatMaskScanLinePad | |
| 284 | BitmapFormatMaskScanLineUnit, |
| 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 == FontNameAlias && alias) { |
| 290 | newlen = strlen(alias); |
| 291 | newname = (char *) realloc(c->fontname, newlen); |
| 292 | if (!newname) { |
| 293 | err = AllocError; |
| 294 | break; |
| 295 | } |
| 296 | memmove(newname, alias, newlen); |
| 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 = BadImplementation; |
| 306 | break; |
| 307 | } |
| 308 | continue; |
| 309 | } |
| 310 | if (err == BadFontName) { |
| 311 | c->current_fpe++; |
| 312 | continue; |
| 313 | } |
| 314 | if (err == Suspended) { |
| 315 | if (!ClientIsAsleep(client)) |
| 316 | ClientSleep(client, (ClientSleepProcPtr) doOpenFont, c); |
| 317 | else |
| 318 | goto xinerama_sleep; |
| 319 | return TRUE; |
| 320 | } |
| 321 | break; |
| 322 | } |
| 323 | |
| 324 | if (err != Successful) |
| 325 | goto bail; |
| 326 | if (!pfont) { |
| 327 | err = BadFontName; |
| 328 | goto bail; |
| 329 | } |
| 330 | /* check values for firstCol, lastCol, firstRow, and lastRow */ |
| 331 | if (pfont->info.firstCol > pfont->info.lastCol || |
| 332 | pfont->info.firstRow > pfont->info.lastRow || |
| 333 | pfont->info.lastCol - pfont->info.firstCol > 255) { |
| 334 | err = AllocError; |
| 335 | goto bail; |
| 336 | } |
| 337 | if (!pfont->fpe) |
| 338 | pfont->fpe = fpe; |
| 339 | pfont->refcnt++; |
| 340 | if (pfont->refcnt == 1) { |
| 341 | UseFPE(pfont->fpe); |
| 342 | for (i = 0; i < screenInfo.numScreens; i++) { |
| 343 | pScr = screenInfo.screens[i]; |
| 344 | if (pScr->RealizeFont) { |
| 345 | if (!(*pScr->RealizeFont) (pScr, pfont)) { |
| 346 | CloseFont(pfont, (Font) 0); |
| 347 | err = AllocError; |
| 348 | goto bail; |
| 349 | } |
| 350 | } |
| 351 | } |
| 352 | } |
| 353 | if (!AddResource(c->fontid, RT_FONT, (pointer) pfont)) { |
| 354 | err = AllocError; |
| 355 | goto bail; |
| 356 | } |
| 357 | if (patternCache && pfont != c->non_cachable_font) |
| 358 | CacheFontPattern(patternCache, c->origFontName, c->origFontNameLen, |
| 359 | pfont); |
| 360 | bail: |
| 361 | if (err != Successful && c->client != serverClient) { |
| 362 | SendErrorToClient(c->client, X_OpenFont, 0, |
| 363 | c->fontid, FontToXError(err)); |
| 364 | } |
| 365 | ClientWakeup(c->client); |
| 366 | xinerama_sleep: |
| 367 | for (i = 0; i < c->num_fpes; i++) { |
| 368 | FreeFPE(c->fpe_list[i]); |
| 369 | } |
| 370 | free(c->fpe_list); |
| 371 | free(c->fontname); |
| 372 | free(c); |
| 373 | return TRUE; |
| 374 | } |
| 375 | |
| 376 | int |
| 377 | OpenFont(ClientPtr client, XID fid, Mask flags, unsigned lenfname, |
| 378 | char *pfontname) |
| 379 | { |
| 380 | OFclosurePtr c; |
| 381 | int i; |
| 382 | FontPtr cached = (FontPtr) 0; |
| 383 | |
| 384 | if (!lenfname || lenfname > XLFDMAXFONTNAMELEN) |
| 385 | return BadName; |
| 386 | if (patternCache) { |
| 387 | |
| 388 | /* |
| 389 | ** Check name cache. If we find a cached version of this font that |
| 390 | ** is cachable, immediately satisfy the request with it. If we find |
| 391 | ** a cached version of this font that is non-cachable, we do not |
| 392 | ** satisfy the request with it. Instead, we pass the FontPtr to the |
| 393 | ** FPE's open_font code (the fontfile FPE in turn passes the |
| 394 | ** information to the rasterizer; the fserve FPE ignores it). |
| 395 | ** |
| 396 | ** Presumably, the font is marked non-cachable because the FPE has |
| 397 | ** put some licensing restrictions on it. If the FPE, using |
| 398 | ** whatever logic it relies on, determines that it is willing to |
| 399 | ** share this existing font with the client, then it has the option |
| 400 | ** to return the FontPtr we passed it as the newly-opened font. |
| 401 | ** This allows the FPE to exercise its licensing logic without |
| 402 | ** having to create another instance of a font that already exists. |
| 403 | */ |
| 404 | |
| 405 | cached = FindCachedFontPattern(patternCache, pfontname, lenfname); |
| 406 | if (cached && cached->info.cachable) { |
| 407 | if (!AddResource(fid, RT_FONT, (pointer) cached)) |
| 408 | return BadAlloc; |
| 409 | cached->refcnt++; |
| 410 | return Success; |
| 411 | } |
| 412 | } |
| 413 | c = malloc(sizeof(OFclosureRec)); |
| 414 | if (!c) |
| 415 | return BadAlloc; |
| 416 | c->fontname = malloc(lenfname); |
| 417 | c->origFontName = pfontname; |
| 418 | c->origFontNameLen = lenfname; |
| 419 | if (!c->fontname) { |
| 420 | free(c); |
| 421 | return BadAlloc; |
| 422 | } |
| 423 | /* |
| 424 | * copy the current FPE list, so that if it gets changed by another client |
| 425 | * while we're blocking, the request still appears atomic |
| 426 | */ |
| 427 | c->fpe_list = malloc(sizeof(FontPathElementPtr) * num_fpes); |
| 428 | if (!c->fpe_list) { |
| 429 | free(c->fontname); |
| 430 | free(c); |
| 431 | return BadAlloc; |
| 432 | } |
| 433 | memmove(c->fontname, pfontname, lenfname); |
| 434 | for (i = 0; i < num_fpes; i++) { |
| 435 | c->fpe_list[i] = font_path_elements[i]; |
| 436 | UseFPE(c->fpe_list[i]); |
| 437 | } |
| 438 | c->client = client; |
| 439 | c->fontid = fid; |
| 440 | c->current_fpe = 0; |
| 441 | c->num_fpes = num_fpes; |
| 442 | c->fnamelen = lenfname; |
| 443 | c->flags = flags; |
| 444 | c->non_cachable_font = cached; |
| 445 | |
| 446 | (void) doOpenFont(client, c); |
| 447 | return Success; |
| 448 | } |
| 449 | |
| 450 | /** |
| 451 | * Decrement font's ref count, and free storage if ref count equals zero |
| 452 | * |
| 453 | * \param value must conform to DeleteType |
| 454 | */ |
| 455 | int |
| 456 | CloseFont(pointer value, XID fid) |
| 457 | { |
| 458 | int nscr; |
| 459 | ScreenPtr pscr; |
| 460 | FontPathElementPtr fpe; |
| 461 | FontPtr pfont = (FontPtr) value; |
| 462 | |
| 463 | if (pfont == NullFont) |
| 464 | return Success; |
| 465 | if (--pfont->refcnt == 0) { |
| 466 | if (patternCache) |
| 467 | RemoveCachedFontPattern(patternCache, pfont); |
| 468 | /* |
| 469 | * since the last reference is gone, ask each screen to free any |
| 470 | * storage it may have allocated locally for it. |
| 471 | */ |
| 472 | for (nscr = 0; nscr < screenInfo.numScreens; nscr++) { |
| 473 | pscr = screenInfo.screens[nscr]; |
| 474 | if (pscr->UnrealizeFont) |
| 475 | (*pscr->UnrealizeFont) (pscr, pfont); |
| 476 | } |
| 477 | if (pfont == defaultFont) |
| 478 | defaultFont = NULL; |
| 479 | #ifdef XF86BIGFONT |
| 480 | XF86BigfontFreeFontShm(pfont); |
| 481 | #endif |
| 482 | fpe = pfont->fpe; |
| 483 | (*fpe_functions[fpe->type].close_font) (fpe, pfont); |
| 484 | FreeFPE(fpe); |
| 485 | } |
| 486 | return Success; |
| 487 | } |
| 488 | |
| 489 | /***====================================================================***/ |
| 490 | |
| 491 | /** |
| 492 | * Sets up pReply as the correct QueryFontReply for pFont with the first |
| 493 | * nProtoCCIStructs char infos. |
| 494 | * |
| 495 | * \param pReply caller must allocate this storage |
| 496 | */ |
| 497 | void |
| 498 | QueryFont(FontPtr pFont, xQueryFontReply * pReply, int nProtoCCIStructs) |
| 499 | { |
| 500 | FontPropPtr pFP; |
| 501 | int r, c, i; |
| 502 | xFontProp *prFP; |
| 503 | xCharInfo *prCI; |
| 504 | xCharInfo *charInfos[256]; |
| 505 | unsigned char chars[512]; |
| 506 | int ninfos; |
| 507 | unsigned long ncols; |
| 508 | unsigned long count; |
| 509 | |
| 510 | /* pr->length set in dispatch */ |
| 511 | pReply->minCharOrByte2 = pFont->info.firstCol; |
| 512 | pReply->defaultChar = pFont->info.defaultCh; |
| 513 | pReply->maxCharOrByte2 = pFont->info.lastCol; |
| 514 | pReply->drawDirection = pFont->info.drawDirection; |
| 515 | pReply->allCharsExist = pFont->info.allExist; |
| 516 | pReply->minByte1 = pFont->info.firstRow; |
| 517 | pReply->maxByte1 = pFont->info.lastRow; |
| 518 | pReply->fontAscent = pFont->info.fontAscent; |
| 519 | pReply->fontDescent = pFont->info.fontDescent; |
| 520 | |
| 521 | pReply->minBounds = pFont->info.ink_minbounds; |
| 522 | pReply->maxBounds = pFont->info.ink_maxbounds; |
| 523 | |
| 524 | pReply->nFontProps = pFont->info.nprops; |
| 525 | pReply->nCharInfos = nProtoCCIStructs; |
| 526 | |
| 527 | for (i = 0, pFP = pFont->info.props, prFP = (xFontProp *) (&pReply[1]); |
| 528 | i < pFont->info.nprops; i++, pFP++, prFP++) { |
| 529 | prFP->name = pFP->name; |
| 530 | prFP->value = pFP->value; |
| 531 | } |
| 532 | |
| 533 | ninfos = 0; |
| 534 | ncols = (unsigned long) (pFont->info.lastCol - pFont->info.firstCol + 1); |
| 535 | prCI = (xCharInfo *) (prFP); |
| 536 | for (r = pFont->info.firstRow; |
| 537 | ninfos < nProtoCCIStructs && r <= (int) pFont->info.lastRow; r++) { |
| 538 | i = 0; |
| 539 | for (c = pFont->info.firstCol; c <= (int) pFont->info.lastCol; c++) { |
| 540 | chars[i++] = r; |
| 541 | chars[i++] = c; |
| 542 | } |
| 543 | (*pFont->get_metrics) (pFont, ncols, chars, |
| 544 | TwoD16Bit, &count, charInfos); |
| 545 | i = 0; |
| 546 | for (i = 0; i < (int) count && ninfos < nProtoCCIStructs; i++) { |
| 547 | *prCI = *charInfos[i]; |
| 548 | prCI++; |
| 549 | ninfos++; |
| 550 | } |
| 551 | } |
| 552 | return; |
| 553 | } |
| 554 | |
| 555 | static Bool |
| 556 | doListFontsAndAliases(ClientPtr client, LFclosurePtr c) |
| 557 | { |
| 558 | FontPathElementPtr fpe; |
| 559 | int err = Successful; |
| 560 | FontNamesPtr names = NULL; |
| 561 | char *name, *resolved = NULL; |
| 562 | int namelen, resolvedlen; |
| 563 | int nnames; |
| 564 | int stringLens; |
| 565 | int i; |
| 566 | xListFontsReply reply; |
| 567 | char *bufptr; |
| 568 | char *bufferStart; |
| 569 | int aliascount = 0; |
| 570 | |
| 571 | if (client->clientGone) { |
| 572 | if (c->current.current_fpe < c->num_fpes) { |
| 573 | fpe = c->fpe_list[c->current.current_fpe]; |
| 574 | (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe); |
| 575 | } |
| 576 | err = Successful; |
| 577 | goto bail; |
| 578 | } |
| 579 | |
| 580 | if (!c->current.patlen) |
| 581 | goto finish; |
| 582 | |
| 583 | while (c->current.current_fpe < c->num_fpes) { |
| 584 | fpe = c->fpe_list[c->current.current_fpe]; |
| 585 | err = Successful; |
| 586 | |
| 587 | if (!fpe_functions[fpe->type].start_list_fonts_and_aliases) { |
| 588 | /* This FPE doesn't support/require list_fonts_and_aliases */ |
| 589 | |
| 590 | err = (*fpe_functions[fpe->type].list_fonts) |
| 591 | ((pointer) c->client, fpe, c->current.pattern, |
| 592 | c->current.patlen, c->current.max_names - c->names->nnames, |
| 593 | c->names); |
| 594 | |
| 595 | if (err == Suspended) { |
| 596 | if (!ClientIsAsleep(client)) |
| 597 | ClientSleep(client, |
| 598 | (ClientSleepProcPtr) doListFontsAndAliases, c); |
| 599 | else |
| 600 | goto xinerama_sleep; |
| 601 | return TRUE; |
| 602 | } |
| 603 | |
| 604 | err = BadFontName; |
| 605 | } |
| 606 | else { |
| 607 | /* Start of list_fonts_and_aliases functionality. Modeled |
| 608 | after list_fonts_with_info in that it resolves aliases, |
| 609 | except that the information collected from FPEs is just |
| 610 | names, not font info. Each list_next_font_or_alias() |
| 611 | returns either a name into name/namelen or an alias into |
| 612 | name/namelen and its target name into resolved/resolvedlen. |
| 613 | The code at this level then resolves the alias by polling |
| 614 | the FPEs. */ |
| 615 | |
| 616 | if (!c->current.list_started) { |
| 617 | err = (*fpe_functions[fpe->type].start_list_fonts_and_aliases) |
| 618 | ((pointer) c->client, fpe, c->current.pattern, |
| 619 | c->current.patlen, c->current.max_names - c->names->nnames, |
| 620 | &c->current.private); |
| 621 | if (err == Suspended) { |
| 622 | if (!ClientIsAsleep(client)) |
| 623 | ClientSleep(client, |
| 624 | (ClientSleepProcPtr) doListFontsAndAliases, |
| 625 | c); |
| 626 | else |
| 627 | goto xinerama_sleep; |
| 628 | return TRUE; |
| 629 | } |
| 630 | if (err == Successful) |
| 631 | c->current.list_started = TRUE; |
| 632 | } |
| 633 | if (err == Successful) { |
| 634 | char *tmpname; |
| 635 | |
| 636 | name = 0; |
| 637 | err = (*fpe_functions[fpe->type].list_next_font_or_alias) |
| 638 | ((pointer) c->client, fpe, &name, &namelen, &tmpname, |
| 639 | &resolvedlen, c->current.private); |
| 640 | if (err == Suspended) { |
| 641 | if (!ClientIsAsleep(client)) |
| 642 | ClientSleep(client, |
| 643 | (ClientSleepProcPtr) doListFontsAndAliases, |
| 644 | c); |
| 645 | else |
| 646 | goto xinerama_sleep; |
| 647 | return TRUE; |
| 648 | } |
| 649 | if (err == FontNameAlias) { |
| 650 | free(resolved); |
| 651 | resolved = malloc(resolvedlen + 1); |
| 652 | if (resolved) |
| 653 | memmove(resolved, tmpname, resolvedlen + 1); |
| 654 | } |
| 655 | } |
| 656 | |
| 657 | if (err == Successful) { |
| 658 | if (c->haveSaved) { |
| 659 | if (c->savedName) |
| 660 | (void) AddFontNamesName(c->names, c->savedName, |
| 661 | c->savedNameLen); |
| 662 | } |
| 663 | else |
| 664 | (void) AddFontNamesName(c->names, name, namelen); |
| 665 | } |
| 666 | |
| 667 | /* |
| 668 | * When we get an alias back, save our state and reset back to |
| 669 | * the start of the FPE looking for the specified name. As |
| 670 | * soon as a real font is found for the alias, pop back to the |
| 671 | * old state |
| 672 | */ |
| 673 | else if (err == FontNameAlias) { |
| 674 | char tmp_pattern[XLFDMAXFONTNAMELEN]; |
| 675 | |
| 676 | /* |
| 677 | * when an alias recurses, we need to give |
| 678 | * the last FPE a chance to clean up; so we call |
| 679 | * it again, and assume that the error returned |
| 680 | * is BadFontName, indicating the alias resolution |
| 681 | * is complete. |
| 682 | */ |
| 683 | memmove(tmp_pattern, resolved, resolvedlen); |
| 684 | if (c->haveSaved) { |
| 685 | char *tmpname; |
| 686 | int tmpnamelen; |
| 687 | |
| 688 | tmpname = 0; |
| 689 | (void) (*fpe_functions[fpe->type].list_next_font_or_alias) |
| 690 | ((pointer) c->client, fpe, &tmpname, &tmpnamelen, |
| 691 | &tmpname, &tmpnamelen, c->current.private); |
| 692 | if (--aliascount <= 0) { |
| 693 | err = BadFontName; |
| 694 | goto ContBadFontName; |
| 695 | } |
| 696 | } |
| 697 | else { |
| 698 | c->saved = c->current; |
| 699 | c->haveSaved = TRUE; |
| 700 | free(c->savedName); |
| 701 | c->savedName = malloc(namelen + 1); |
| 702 | if (c->savedName) |
| 703 | memmove(c->savedName, name, namelen + 1); |
| 704 | c->savedNameLen = namelen; |
| 705 | aliascount = 20; |
| 706 | } |
| 707 | memmove(c->current.pattern, tmp_pattern, resolvedlen); |
| 708 | c->current.patlen = resolvedlen; |
| 709 | c->current.max_names = c->names->nnames + 1; |
| 710 | c->current.current_fpe = -1; |
| 711 | c->current.private = 0; |
| 712 | err = BadFontName; |
| 713 | } |
| 714 | } |
| 715 | /* |
| 716 | * At the end of this FPE, step to the next. If we've finished |
| 717 | * processing an alias, pop state back. If we've collected enough |
| 718 | * font names, quit. |
| 719 | */ |
| 720 | if (err == BadFontName) { |
| 721 | ContBadFontName:; |
| 722 | c->current.list_started = FALSE; |
| 723 | c->current.current_fpe++; |
| 724 | err = Successful; |
| 725 | if (c->haveSaved) { |
| 726 | if (c->names->nnames == c->current.max_names || |
| 727 | c->current.current_fpe == c->num_fpes) { |
| 728 | c->haveSaved = FALSE; |
| 729 | c->current = c->saved; |
| 730 | /* Give the saved namelist a chance to clean itself up */ |
| 731 | continue; |
| 732 | } |
| 733 | } |
| 734 | if (c->names->nnames == c->current.max_names) |
| 735 | break; |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | /* |
| 740 | * send the reply |
| 741 | */ |
| 742 | if (err != Successful) { |
| 743 | SendErrorToClient(client, X_ListFonts, 0, 0, FontToXError(err)); |
| 744 | goto bail; |
| 745 | } |
| 746 | |
| 747 | finish: |
| 748 | |
| 749 | names = c->names; |
| 750 | nnames = names->nnames; |
| 751 | client = c->client; |
| 752 | stringLens = 0; |
| 753 | for (i = 0; i < nnames; i++) |
| 754 | stringLens += (names->length[i] <= 255) ? names->length[i] : 0; |
| 755 | |
| 756 | reply = (xListFontsReply) { |
| 757 | .type = X_Reply, |
| 758 | .length = bytes_to_int32(stringLens + nnames), |
| 759 | .nFonts = nnames, |
| 760 | .sequenceNumber = client->sequence |
| 761 | }; |
| 762 | |
| 763 | bufptr = bufferStart = malloc(reply.length << 2); |
| 764 | |
| 765 | if (!bufptr && reply.length) { |
| 766 | SendErrorToClient(client, X_ListFonts, 0, 0, BadAlloc); |
| 767 | goto bail; |
| 768 | } |
| 769 | /* |
| 770 | * since WriteToClient long word aligns things, copy to temp buffer and |
| 771 | * write all at once |
| 772 | */ |
| 773 | for (i = 0; i < nnames; i++) { |
| 774 | if (names->length[i] > 255) |
| 775 | reply.nFonts--; |
| 776 | else { |
| 777 | *bufptr++ = names->length[i]; |
| 778 | memmove(bufptr, names->names[i], names->length[i]); |
| 779 | bufptr += names->length[i]; |
| 780 | } |
| 781 | } |
| 782 | nnames = reply.nFonts; |
| 783 | reply.length = bytes_to_int32(stringLens + nnames); |
| 784 | client->pSwapReplyFunc = ReplySwapVector[X_ListFonts]; |
| 785 | WriteSwappedDataToClient(client, sizeof(xListFontsReply), &reply); |
| 786 | WriteToClient(client, stringLens + nnames, bufferStart); |
| 787 | free(bufferStart); |
| 788 | |
| 789 | bail: |
| 790 | ClientWakeup(client); |
| 791 | xinerama_sleep: |
| 792 | for (i = 0; i < c->num_fpes; i++) |
| 793 | FreeFPE(c->fpe_list[i]); |
| 794 | free(c->fpe_list); |
| 795 | free(c->savedName); |
| 796 | FreeFontNames(names); |
| 797 | free(c); |
| 798 | free(resolved); |
| 799 | return TRUE; |
| 800 | } |
| 801 | |
| 802 | int |
| 803 | ListFonts(ClientPtr client, unsigned char *pattern, unsigned length, |
| 804 | unsigned max_names) |
| 805 | { |
| 806 | int i; |
| 807 | LFclosurePtr c; |
| 808 | |
| 809 | /* |
| 810 | * The right error to return here would be BadName, however the |
| 811 | * specification does not allow for a Name error on this request. |
| 812 | * Perhaps a better solution would be to return a nil list, i.e. |
| 813 | * a list containing zero fontnames. |
| 814 | */ |
| 815 | if (length > XLFDMAXFONTNAMELEN) |
| 816 | return BadAlloc; |
| 817 | |
| 818 | i = XaceHook(XACE_SERVER_ACCESS, client, DixGetAttrAccess); |
| 819 | if (i != Success) |
| 820 | return i; |
| 821 | |
| 822 | if (!(c = malloc(sizeof *c))) |
| 823 | return BadAlloc; |
| 824 | c->fpe_list = malloc(sizeof(FontPathElementPtr) * num_fpes); |
| 825 | if (!c->fpe_list) { |
| 826 | free(c); |
| 827 | return BadAlloc; |
| 828 | } |
| 829 | c->names = MakeFontNamesRecord(max_names < 100 ? max_names : 100); |
| 830 | if (!c->names) { |
| 831 | free(c->fpe_list); |
| 832 | free(c); |
| 833 | return BadAlloc; |
| 834 | } |
| 835 | memmove(c->current.pattern, pattern, length); |
| 836 | for (i = 0; i < num_fpes; i++) { |
| 837 | c->fpe_list[i] = font_path_elements[i]; |
| 838 | UseFPE(c->fpe_list[i]); |
| 839 | } |
| 840 | c->client = client; |
| 841 | c->num_fpes = num_fpes; |
| 842 | c->current.patlen = length; |
| 843 | c->current.current_fpe = 0; |
| 844 | c->current.max_names = max_names; |
| 845 | c->current.list_started = FALSE; |
| 846 | c->current.private = 0; |
| 847 | c->haveSaved = FALSE; |
| 848 | c->savedName = 0; |
| 849 | doListFontsAndAliases(client, c); |
| 850 | return Success; |
| 851 | } |
| 852 | |
| 853 | int |
| 854 | doListFontsWithInfo(ClientPtr client, LFWIclosurePtr c) |
| 855 | { |
| 856 | FontPathElementPtr fpe; |
| 857 | int err = Successful; |
| 858 | char *name; |
| 859 | int namelen; |
| 860 | int numFonts; |
| 861 | FontInfoRec fontInfo, *pFontInfo; |
| 862 | xListFontsWithInfoReply *reply; |
| 863 | int length; |
| 864 | xFontProp *pFP; |
| 865 | int i; |
| 866 | int aliascount = 0; |
| 867 | xListFontsWithInfoReply finalReply; |
| 868 | |
| 869 | if (client->clientGone) { |
| 870 | if (c->current.current_fpe < c->num_fpes) { |
| 871 | fpe = c->fpe_list[c->current.current_fpe]; |
| 872 | (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe); |
| 873 | } |
| 874 | err = Successful; |
| 875 | goto bail; |
| 876 | } |
| 877 | client->pSwapReplyFunc = ReplySwapVector[X_ListFontsWithInfo]; |
| 878 | if (!c->current.patlen) |
| 879 | goto finish; |
| 880 | while (c->current.current_fpe < c->num_fpes) { |
| 881 | fpe = c->fpe_list[c->current.current_fpe]; |
| 882 | err = Successful; |
| 883 | if (!c->current.list_started) { |
| 884 | err = (*fpe_functions[fpe->type].start_list_fonts_with_info) |
| 885 | (client, fpe, c->current.pattern, c->current.patlen, |
| 886 | c->current.max_names, &c->current.private); |
| 887 | if (err == Suspended) { |
| 888 | if (!ClientIsAsleep(client)) |
| 889 | ClientSleep(client, |
| 890 | (ClientSleepProcPtr) doListFontsWithInfo, c); |
| 891 | else |
| 892 | goto xinerama_sleep; |
| 893 | return TRUE; |
| 894 | } |
| 895 | if (err == Successful) |
| 896 | c->current.list_started = TRUE; |
| 897 | } |
| 898 | if (err == Successful) { |
| 899 | name = 0; |
| 900 | pFontInfo = &fontInfo; |
| 901 | err = (*fpe_functions[fpe->type].list_next_font_with_info) |
| 902 | (client, fpe, &name, &namelen, &pFontInfo, |
| 903 | &numFonts, c->current.private); |
| 904 | if (err == Suspended) { |
| 905 | if (!ClientIsAsleep(client)) |
| 906 | ClientSleep(client, |
| 907 | (ClientSleepProcPtr) doListFontsWithInfo, c); |
| 908 | else |
| 909 | goto xinerama_sleep; |
| 910 | return TRUE; |
| 911 | } |
| 912 | } |
| 913 | /* |
| 914 | * When we get an alias back, save our state and reset back to the |
| 915 | * start of the FPE looking for the specified name. As soon as a real |
| 916 | * font is found for the alias, pop back to the old state |
| 917 | */ |
| 918 | if (err == FontNameAlias) { |
| 919 | /* |
| 920 | * when an alias recurses, we need to give |
| 921 | * the last FPE a chance to clean up; so we call |
| 922 | * it again, and assume that the error returned |
| 923 | * is BadFontName, indicating the alias resolution |
| 924 | * is complete. |
| 925 | */ |
| 926 | if (c->haveSaved) { |
| 927 | char *tmpname; |
| 928 | int tmpnamelen; |
| 929 | FontInfoPtr tmpFontInfo; |
| 930 | |
| 931 | tmpname = 0; |
| 932 | tmpFontInfo = &fontInfo; |
| 933 | (void) (*fpe_functions[fpe->type].list_next_font_with_info) |
| 934 | (client, fpe, &tmpname, &tmpnamelen, &tmpFontInfo, |
| 935 | &numFonts, c->current.private); |
| 936 | if (--aliascount <= 0) { |
| 937 | err = BadFontName; |
| 938 | goto ContBadFontName; |
| 939 | } |
| 940 | } |
| 941 | else { |
| 942 | c->saved = c->current; |
| 943 | c->haveSaved = TRUE; |
| 944 | c->savedNumFonts = numFonts; |
| 945 | free(c->savedName); |
| 946 | c->savedName = malloc(namelen + 1); |
| 947 | if (c->savedName) |
| 948 | memmove(c->savedName, name, namelen + 1); |
| 949 | aliascount = 20; |
| 950 | } |
| 951 | memmove(c->current.pattern, name, namelen); |
| 952 | c->current.patlen = namelen; |
| 953 | c->current.max_names = 1; |
| 954 | c->current.current_fpe = 0; |
| 955 | c->current.private = 0; |
| 956 | c->current.list_started = FALSE; |
| 957 | } |
| 958 | /* |
| 959 | * At the end of this FPE, step to the next. If we've finished |
| 960 | * processing an alias, pop state back. If we've sent enough font |
| 961 | * names, quit. Always wait for BadFontName to let the FPE |
| 962 | * have a chance to clean up. |
| 963 | */ |
| 964 | else if (err == BadFontName) { |
| 965 | ContBadFontName:; |
| 966 | c->current.list_started = FALSE; |
| 967 | c->current.current_fpe++; |
| 968 | err = Successful; |
| 969 | if (c->haveSaved) { |
| 970 | if (c->current.max_names == 0 || |
| 971 | c->current.current_fpe == c->num_fpes) { |
| 972 | c->haveSaved = FALSE; |
| 973 | c->saved.max_names -= (1 - c->current.max_names); |
| 974 | c->current = c->saved; |
| 975 | } |
| 976 | } |
| 977 | else if (c->current.max_names == 0) |
| 978 | break; |
| 979 | } |
| 980 | else if (err == Successful) { |
| 981 | length = sizeof(*reply) + pFontInfo->nprops * sizeof(xFontProp); |
| 982 | reply = c->reply; |
| 983 | if (c->length < length) { |
| 984 | reply = (xListFontsWithInfoReply *) realloc(c->reply, length); |
| 985 | if (!reply) { |
| 986 | err = AllocError; |
| 987 | break; |
| 988 | } |
| 989 | memset((char *) reply + c->length, 0, length - c->length); |
| 990 | c->reply = reply; |
| 991 | c->length = length; |
| 992 | } |
| 993 | if (c->haveSaved) { |
| 994 | numFonts = c->savedNumFonts; |
| 995 | name = c->savedName; |
| 996 | namelen = strlen(name); |
| 997 | } |
| 998 | reply->type = X_Reply; |
| 999 | reply->length = |
| 1000 | bytes_to_int32(sizeof *reply - sizeof(xGenericReply) + |
| 1001 | pFontInfo->nprops * sizeof(xFontProp) + namelen); |
| 1002 | reply->sequenceNumber = client->sequence; |
| 1003 | reply->nameLength = namelen; |
| 1004 | reply->minBounds = pFontInfo->ink_minbounds; |
| 1005 | reply->maxBounds = pFontInfo->ink_maxbounds; |
| 1006 | reply->minCharOrByte2 = pFontInfo->firstCol; |
| 1007 | reply->maxCharOrByte2 = pFontInfo->lastCol; |
| 1008 | reply->defaultChar = pFontInfo->defaultCh; |
| 1009 | reply->nFontProps = pFontInfo->nprops; |
| 1010 | reply->drawDirection = pFontInfo->drawDirection; |
| 1011 | reply->minByte1 = pFontInfo->firstRow; |
| 1012 | reply->maxByte1 = pFontInfo->lastRow; |
| 1013 | reply->allCharsExist = pFontInfo->allExist; |
| 1014 | reply->fontAscent = pFontInfo->fontAscent; |
| 1015 | reply->fontDescent = pFontInfo->fontDescent; |
| 1016 | reply->nReplies = numFonts; |
| 1017 | pFP = (xFontProp *) (reply + 1); |
| 1018 | for (i = 0; i < pFontInfo->nprops; i++) { |
| 1019 | pFP->name = pFontInfo->props[i].name; |
| 1020 | pFP->value = pFontInfo->props[i].value; |
| 1021 | pFP++; |
| 1022 | } |
| 1023 | WriteSwappedDataToClient(client, length, reply); |
| 1024 | WriteToClient(client, namelen, name); |
| 1025 | if (pFontInfo == &fontInfo) { |
| 1026 | free(fontInfo.props); |
| 1027 | free(fontInfo.isStringProp); |
| 1028 | } |
| 1029 | --c->current.max_names; |
| 1030 | } |
| 1031 | } |
| 1032 | finish: |
| 1033 | length = sizeof(xListFontsWithInfoReply); |
| 1034 | finalReply = (xListFontsWithInfoReply) { |
| 1035 | .type = X_Reply, |
| 1036 | .sequenceNumber = client->sequence, |
| 1037 | .length = bytes_to_int32(sizeof(xListFontsWithInfoReply) |
| 1038 | - sizeof(xGenericReply)) |
| 1039 | }; |
| 1040 | WriteSwappedDataToClient(client, length, &finalReply); |
| 1041 | bail: |
| 1042 | ClientWakeup(client); |
| 1043 | xinerama_sleep: |
| 1044 | for (i = 0; i < c->num_fpes; i++) |
| 1045 | FreeFPE(c->fpe_list[i]); |
| 1046 | free(c->reply); |
| 1047 | free(c->fpe_list); |
| 1048 | free(c->savedName); |
| 1049 | free(c); |
| 1050 | return TRUE; |
| 1051 | } |
| 1052 | |
| 1053 | int |
| 1054 | StartListFontsWithInfo(ClientPtr client, int length, unsigned char *pattern, |
| 1055 | int max_names) |
| 1056 | { |
| 1057 | int i; |
| 1058 | LFWIclosurePtr c; |
| 1059 | |
| 1060 | /* |
| 1061 | * The right error to return here would be BadName, however the |
| 1062 | * specification does not allow for a Name error on this request. |
| 1063 | * Perhaps a better solution would be to return a nil list, i.e. |
| 1064 | * a list containing zero fontnames. |
| 1065 | */ |
| 1066 | if (length > XLFDMAXFONTNAMELEN) |
| 1067 | return BadAlloc; |
| 1068 | |
| 1069 | i = XaceHook(XACE_SERVER_ACCESS, client, DixGetAttrAccess); |
| 1070 | if (i != Success) |
| 1071 | return i; |
| 1072 | |
| 1073 | if (!(c = malloc(sizeof *c))) |
| 1074 | goto badAlloc; |
| 1075 | c->fpe_list = malloc(sizeof(FontPathElementPtr) * num_fpes); |
| 1076 | if (!c->fpe_list) { |
| 1077 | free(c); |
| 1078 | goto badAlloc; |
| 1079 | } |
| 1080 | memmove(c->current.pattern, pattern, length); |
| 1081 | for (i = 0; i < num_fpes; i++) { |
| 1082 | c->fpe_list[i] = font_path_elements[i]; |
| 1083 | UseFPE(c->fpe_list[i]); |
| 1084 | } |
| 1085 | c->client = client; |
| 1086 | c->num_fpes = num_fpes; |
| 1087 | c->reply = 0; |
| 1088 | c->length = 0; |
| 1089 | c->current.patlen = length; |
| 1090 | c->current.current_fpe = 0; |
| 1091 | c->current.max_names = max_names; |
| 1092 | c->current.list_started = FALSE; |
| 1093 | c->current.private = 0; |
| 1094 | c->savedNumFonts = 0; |
| 1095 | c->haveSaved = FALSE; |
| 1096 | c->savedName = 0; |
| 1097 | doListFontsWithInfo(client, c); |
| 1098 | return Success; |
| 1099 | badAlloc: |
| 1100 | return BadAlloc; |
| 1101 | } |
| 1102 | |
| 1103 | #define TextEltHeader 2 |
| 1104 | #define FontShiftSize 5 |
| 1105 | static ChangeGCVal clearGC[] = { {.ptr = NullPixmap} }; |
| 1106 | |
| 1107 | #define clearGCmask (GCClipMask) |
| 1108 | |
| 1109 | int |
| 1110 | doPolyText(ClientPtr client, PTclosurePtr c) |
| 1111 | { |
| 1112 | FontPtr pFont = c->pGC->font, oldpFont; |
| 1113 | int err = Success, lgerr; /* err is in X error, not font error, space */ |
| 1114 | enum { NEVER_SLEPT, START_SLEEP, SLEEPING } client_state = NEVER_SLEPT; |
| 1115 | FontPathElementPtr fpe; |
| 1116 | GC *origGC = NULL; |
| 1117 | int itemSize = c->reqType == X_PolyText8 ? 1 : 2; |
| 1118 | |
| 1119 | if (client->clientGone) { |
| 1120 | fpe = c->pGC->font->fpe; |
| 1121 | (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe); |
| 1122 | |
| 1123 | if (ClientIsAsleep(client)) { |
| 1124 | /* Client has died, but we cannot bail out right now. We |
| 1125 | need to clean up after the work we did when going to |
| 1126 | sleep. Setting the drawable pointer to 0 makes this |
| 1127 | happen without any attempts to render or perform other |
| 1128 | unnecessary activities. */ |
| 1129 | c->pDraw = (DrawablePtr) 0; |
| 1130 | } |
| 1131 | else { |
| 1132 | err = Success; |
| 1133 | goto bail; |
| 1134 | } |
| 1135 | } |
| 1136 | |
| 1137 | /* Make sure our drawable hasn't disappeared while we slept. */ |
| 1138 | if (ClientIsAsleep(client) && c->pDraw) { |
| 1139 | DrawablePtr pDraw; |
| 1140 | |
| 1141 | dixLookupDrawable(&pDraw, c->did, client, 0, DixWriteAccess); |
| 1142 | if (c->pDraw != pDraw) { |
| 1143 | /* Our drawable has disappeared. Treat like client died... ask |
| 1144 | the FPE code to clean up after client and avoid further |
| 1145 | rendering while we clean up after ourself. */ |
| 1146 | fpe = c->pGC->font->fpe; |
| 1147 | (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe); |
| 1148 | c->pDraw = (DrawablePtr) 0; |
| 1149 | } |
| 1150 | } |
| 1151 | |
| 1152 | client_state = ClientIsAsleep(client) ? SLEEPING : NEVER_SLEPT; |
| 1153 | |
| 1154 | while (c->endReq - c->pElt > TextEltHeader) { |
| 1155 | if (*c->pElt == FontChange) { |
| 1156 | Font fid; |
| 1157 | |
| 1158 | if (c->endReq - c->pElt < FontShiftSize) { |
| 1159 | err = BadLength; |
| 1160 | goto bail; |
| 1161 | } |
| 1162 | |
| 1163 | oldpFont = pFont; |
| 1164 | |
| 1165 | fid = ((Font) *(c->pElt + 4)) /* big-endian */ |
| 1166 | |((Font) *(c->pElt + 3)) << 8 |
| 1167 | | ((Font) *(c->pElt + 2)) << 16 | ((Font) *(c->pElt + 1)) << 24; |
| 1168 | err = dixLookupResourceByType((pointer *) &pFont, fid, RT_FONT, |
| 1169 | client, DixUseAccess); |
| 1170 | if (err != Success) { |
| 1171 | /* restore pFont for step 4 (described below) */ |
| 1172 | pFont = oldpFont; |
| 1173 | |
| 1174 | /* If we're in START_SLEEP mode, the following step |
| 1175 | shortens the request... in the unlikely event that |
| 1176 | the fid somehow becomes valid before we come through |
| 1177 | again to actually execute the polytext, which would |
| 1178 | then mess up our refcounting scheme badly. */ |
| 1179 | c->err = err; |
| 1180 | c->endReq = c->pElt; |
| 1181 | |
| 1182 | goto bail; |
| 1183 | } |
| 1184 | |
| 1185 | /* Step 3 (described below) on our new font */ |
| 1186 | if (client_state == START_SLEEP) |
| 1187 | pFont->refcnt++; |
| 1188 | else { |
| 1189 | if (pFont != c->pGC->font && c->pDraw) { |
| 1190 | ChangeGCVal val; |
| 1191 | |
| 1192 | val.ptr = pFont; |
| 1193 | ChangeGC(NullClient, c->pGC, GCFont, &val); |
| 1194 | ValidateGC(c->pDraw, c->pGC); |
| 1195 | } |
| 1196 | |
| 1197 | /* Undo the refcnt++ we performed when going to sleep */ |
| 1198 | if (client_state == SLEEPING) |
| 1199 | (void) CloseFont(c->pGC->font, (Font) 0); |
| 1200 | } |
| 1201 | c->pElt += FontShiftSize; |
| 1202 | } |
| 1203 | else { /* print a string */ |
| 1204 | |
| 1205 | unsigned char *pNextElt; |
| 1206 | |
| 1207 | pNextElt = c->pElt + TextEltHeader + (*c->pElt) * itemSize; |
| 1208 | if (pNextElt > c->endReq) { |
| 1209 | err = BadLength; |
| 1210 | goto bail; |
| 1211 | } |
| 1212 | if (client_state == START_SLEEP) { |
| 1213 | c->pElt = pNextElt; |
| 1214 | continue; |
| 1215 | } |
| 1216 | if (c->pDraw) { |
| 1217 | lgerr = LoadGlyphs(client, c->pGC->font, *c->pElt, itemSize, |
| 1218 | c->pElt + TextEltHeader); |
| 1219 | } |
| 1220 | else |
| 1221 | lgerr = Successful; |
| 1222 | |
| 1223 | if (lgerr == Suspended) { |
| 1224 | if (!ClientIsAsleep(client)) { |
| 1225 | int len; |
| 1226 | GC *pGC; |
| 1227 | PTclosurePtr new_closure; |
| 1228 | |
| 1229 | /* We're putting the client to sleep. We need to do a few things |
| 1230 | to ensure successful and atomic-appearing execution of the |
| 1231 | remainder of the request. First, copy the remainder of the |
| 1232 | request into a safe malloc'd area. Second, create a scratch GC |
| 1233 | to use for the remainder of the request. Third, mark all fonts |
| 1234 | referenced in the remainder of the request to prevent their |
| 1235 | deallocation. Fourth, make the original GC look like the |
| 1236 | request has completed... set its font to the final font value |
| 1237 | from this request. These GC manipulations are for the unlikely |
| 1238 | (but possible) event that some other client is using the GC. |
| 1239 | Steps 3 and 4 are performed by running this procedure through |
| 1240 | the remainder of the request in a special no-render mode |
| 1241 | indicated by client_state = START_SLEEP. */ |
| 1242 | |
| 1243 | /* Step 1 */ |
| 1244 | /* Allocate a malloc'd closure structure to replace |
| 1245 | the local one we were passed */ |
| 1246 | new_closure = malloc(sizeof(PTclosureRec)); |
| 1247 | if (!new_closure) { |
| 1248 | err = BadAlloc; |
| 1249 | goto bail; |
| 1250 | } |
| 1251 | *new_closure = *c; |
| 1252 | |
| 1253 | len = new_closure->endReq - new_closure->pElt; |
| 1254 | new_closure->data = malloc(len); |
| 1255 | if (!new_closure->data) { |
| 1256 | free(new_closure); |
| 1257 | err = BadAlloc; |
| 1258 | goto bail; |
| 1259 | } |
| 1260 | memmove(new_closure->data, new_closure->pElt, len); |
| 1261 | new_closure->pElt = new_closure->data; |
| 1262 | new_closure->endReq = new_closure->pElt + len; |
| 1263 | |
| 1264 | /* Step 2 */ |
| 1265 | |
| 1266 | pGC = |
| 1267 | GetScratchGC(new_closure->pGC->depth, |
| 1268 | new_closure->pGC->pScreen); |
| 1269 | if (!pGC) { |
| 1270 | free(new_closure->data); |
| 1271 | free(new_closure); |
| 1272 | err = BadAlloc; |
| 1273 | goto bail; |
| 1274 | } |
| 1275 | if ((err = CopyGC(new_closure->pGC, pGC, GCFunction | |
| 1276 | GCPlaneMask | GCForeground | |
| 1277 | GCBackground | GCFillStyle | |
| 1278 | GCTile | GCStipple | |
| 1279 | GCTileStipXOrigin | |
| 1280 | GCTileStipYOrigin | GCFont | |
| 1281 | GCSubwindowMode | GCClipXOrigin | |
| 1282 | GCClipYOrigin | GCClipMask)) != Success) { |
| 1283 | FreeScratchGC(pGC); |
| 1284 | free(new_closure->data); |
| 1285 | free(new_closure); |
| 1286 | err = BadAlloc; |
| 1287 | goto bail; |
| 1288 | } |
| 1289 | c = new_closure; |
| 1290 | origGC = c->pGC; |
| 1291 | c->pGC = pGC; |
| 1292 | ValidateGC(c->pDraw, c->pGC); |
| 1293 | |
| 1294 | ClientSleep(client, (ClientSleepProcPtr) doPolyText, c); |
| 1295 | |
| 1296 | /* Set up to perform steps 3 and 4 */ |
| 1297 | client_state = START_SLEEP; |
| 1298 | continue; /* on to steps 3 and 4 */ |
| 1299 | } |
| 1300 | else |
| 1301 | goto xinerama_sleep; |
| 1302 | return TRUE; |
| 1303 | } |
| 1304 | else if (lgerr != Successful) { |
| 1305 | err = FontToXError(lgerr); |
| 1306 | goto bail; |
| 1307 | } |
| 1308 | if (c->pDraw) { |
| 1309 | c->xorg += *((INT8 *) (c->pElt + 1)); /* must be signed */ |
| 1310 | if (c->reqType == X_PolyText8) |
| 1311 | c->xorg = |
| 1312 | (*c->pGC->ops->PolyText8) (c->pDraw, c->pGC, c->xorg, |
| 1313 | c->yorg, *c->pElt, |
| 1314 | (char *) (c->pElt + |
| 1315 | TextEltHeader)); |
| 1316 | else |
| 1317 | c->xorg = |
| 1318 | (*c->pGC->ops->PolyText16) (c->pDraw, c->pGC, c->xorg, |
| 1319 | c->yorg, *c->pElt, |
| 1320 | (unsigned short *) (c-> |
| 1321 | pElt + |
| 1322 | TextEltHeader)); |
| 1323 | } |
| 1324 | c->pElt = pNextElt; |
| 1325 | } |
| 1326 | } |
| 1327 | |
| 1328 | bail: |
| 1329 | |
| 1330 | if (client_state == START_SLEEP) { |
| 1331 | /* Step 4 */ |
| 1332 | if (pFont != origGC->font) { |
| 1333 | ChangeGCVal val; |
| 1334 | |
| 1335 | val.ptr = pFont; |
| 1336 | ChangeGC(NullClient, origGC, GCFont, &val); |
| 1337 | ValidateGC(c->pDraw, origGC); |
| 1338 | } |
| 1339 | |
| 1340 | /* restore pElt pointer for execution of remainder of the request */ |
| 1341 | c->pElt = c->data; |
| 1342 | return TRUE; |
| 1343 | } |
| 1344 | |
| 1345 | if (c->err != Success) |
| 1346 | err = c->err; |
| 1347 | if (err != Success && c->client != serverClient) { |
| 1348 | #ifdef PANORAMIX |
| 1349 | if (noPanoramiXExtension || !c->pGC->pScreen->myNum) |
| 1350 | #endif |
| 1351 | SendErrorToClient(c->client, c->reqType, 0, 0, err); |
| 1352 | } |
| 1353 | if (ClientIsAsleep(client)) { |
| 1354 | ClientWakeup(c->client); |
| 1355 | xinerama_sleep: |
| 1356 | ChangeGC(NullClient, c->pGC, clearGCmask, clearGC); |
| 1357 | |
| 1358 | /* Unreference the font from the scratch GC */ |
| 1359 | CloseFont(c->pGC->font, (Font) 0); |
| 1360 | c->pGC->font = NullFont; |
| 1361 | |
| 1362 | FreeScratchGC(c->pGC); |
| 1363 | free(c->data); |
| 1364 | free(c); |
| 1365 | } |
| 1366 | return TRUE; |
| 1367 | } |
| 1368 | |
| 1369 | int |
| 1370 | PolyText(ClientPtr client, DrawablePtr pDraw, GC * pGC, unsigned char *pElt, |
| 1371 | unsigned char *endReq, int xorg, int yorg, int reqType, XID did) |
| 1372 | { |
| 1373 | PTclosureRec local_closure; |
| 1374 | |
| 1375 | local_closure.pElt = pElt; |
| 1376 | local_closure.endReq = endReq; |
| 1377 | local_closure.client = client; |
| 1378 | local_closure.pDraw = pDraw; |
| 1379 | local_closure.xorg = xorg; |
| 1380 | local_closure.yorg = yorg; |
| 1381 | local_closure.reqType = reqType; |
| 1382 | local_closure.pGC = pGC; |
| 1383 | local_closure.did = did; |
| 1384 | local_closure.err = Success; |
| 1385 | |
| 1386 | (void) doPolyText(client, &local_closure); |
| 1387 | return Success; |
| 1388 | } |
| 1389 | |
| 1390 | #undef TextEltHeader |
| 1391 | #undef FontShiftSize |
| 1392 | |
| 1393 | int |
| 1394 | doImageText(ClientPtr client, ITclosurePtr c) |
| 1395 | { |
| 1396 | int err = Success, lgerr; /* err is in X error, not font error, space */ |
| 1397 | FontPathElementPtr fpe; |
| 1398 | int itemSize = c->reqType == X_ImageText8 ? 1 : 2; |
| 1399 | |
| 1400 | if (client->clientGone) { |
| 1401 | fpe = c->pGC->font->fpe; |
| 1402 | (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe); |
| 1403 | err = Success; |
| 1404 | goto bail; |
| 1405 | } |
| 1406 | |
| 1407 | /* Make sure our drawable hasn't disappeared while we slept. */ |
| 1408 | if (ClientIsAsleep(client) && c->pDraw) { |
| 1409 | DrawablePtr pDraw; |
| 1410 | |
| 1411 | dixLookupDrawable(&pDraw, c->did, client, 0, DixWriteAccess); |
| 1412 | if (c->pDraw != pDraw) { |
| 1413 | /* Our drawable has disappeared. Treat like client died... ask |
| 1414 | the FPE code to clean up after client. */ |
| 1415 | fpe = c->pGC->font->fpe; |
| 1416 | (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe); |
| 1417 | err = Success; |
| 1418 | goto bail; |
| 1419 | } |
| 1420 | } |
| 1421 | |
| 1422 | lgerr = LoadGlyphs(client, c->pGC->font, c->nChars, itemSize, c->data); |
| 1423 | if (lgerr == Suspended) { |
| 1424 | if (!ClientIsAsleep(client)) { |
| 1425 | GC *pGC; |
| 1426 | unsigned char *data; |
| 1427 | ITclosurePtr new_closure; |
| 1428 | ITclosurePtr old_closure; |
| 1429 | |
| 1430 | /* We're putting the client to sleep. We need to |
| 1431 | save some state. Similar problem to that handled |
| 1432 | in doPolyText, but much simpler because the |
| 1433 | request structure is much simpler. */ |
| 1434 | |
| 1435 | new_closure = malloc(sizeof(ITclosureRec)); |
| 1436 | if (!new_closure) { |
| 1437 | err = BadAlloc; |
| 1438 | goto bail; |
| 1439 | } |
| 1440 | old_closure = c; |
| 1441 | *new_closure = *c; |
| 1442 | c = new_closure; |
| 1443 | |
| 1444 | data = malloc(c->nChars * itemSize); |
| 1445 | if (!data) { |
| 1446 | free(c); |
| 1447 | c = old_closure; |
| 1448 | err = BadAlloc; |
| 1449 | goto bail; |
| 1450 | } |
| 1451 | memmove(data, c->data, c->nChars * itemSize); |
| 1452 | c->data = data; |
| 1453 | |
| 1454 | pGC = GetScratchGC(c->pGC->depth, c->pGC->pScreen); |
| 1455 | if (!pGC) { |
| 1456 | free(c->data); |
| 1457 | free(c); |
| 1458 | c = old_closure; |
| 1459 | err = BadAlloc; |
| 1460 | goto bail; |
| 1461 | } |
| 1462 | if ((err = CopyGC(c->pGC, pGC, GCFunction | GCPlaneMask | |
| 1463 | GCForeground | GCBackground | GCFillStyle | |
| 1464 | GCTile | GCStipple | GCTileStipXOrigin | |
| 1465 | GCTileStipYOrigin | GCFont | |
| 1466 | GCSubwindowMode | GCClipXOrigin | |
| 1467 | GCClipYOrigin | GCClipMask)) != Success) { |
| 1468 | FreeScratchGC(pGC); |
| 1469 | free(c->data); |
| 1470 | free(c); |
| 1471 | c = old_closure; |
| 1472 | err = BadAlloc; |
| 1473 | goto bail; |
| 1474 | } |
| 1475 | c->pGC = pGC; |
| 1476 | ValidateGC(c->pDraw, c->pGC); |
| 1477 | |
| 1478 | ClientSleep(client, (ClientSleepProcPtr) doImageText, c); |
| 1479 | } |
| 1480 | else |
| 1481 | goto xinerama_sleep; |
| 1482 | return TRUE; |
| 1483 | } |
| 1484 | else if (lgerr != Successful) { |
| 1485 | err = FontToXError(lgerr); |
| 1486 | goto bail; |
| 1487 | } |
| 1488 | if (c->pDraw) { |
| 1489 | if (c->reqType == X_ImageText8) |
| 1490 | (*c->pGC->ops->ImageText8) (c->pDraw, c->pGC, c->xorg, c->yorg, |
| 1491 | c->nChars, (char *) c->data); |
| 1492 | else |
| 1493 | (*c->pGC->ops->ImageText16) (c->pDraw, c->pGC, c->xorg, c->yorg, |
| 1494 | c->nChars, (unsigned short *) c->data); |
| 1495 | } |
| 1496 | |
| 1497 | bail: |
| 1498 | |
| 1499 | if (err != Success && c->client != serverClient) { |
| 1500 | SendErrorToClient(c->client, c->reqType, 0, 0, err); |
| 1501 | } |
| 1502 | if (ClientIsAsleep(client)) { |
| 1503 | ClientWakeup(c->client); |
| 1504 | xinerama_sleep: |
| 1505 | ChangeGC(NullClient, c->pGC, clearGCmask, clearGC); |
| 1506 | |
| 1507 | /* Unreference the font from the scratch GC */ |
| 1508 | CloseFont(c->pGC->font, (Font) 0); |
| 1509 | c->pGC->font = NullFont; |
| 1510 | |
| 1511 | FreeScratchGC(c->pGC); |
| 1512 | free(c->data); |
| 1513 | free(c); |
| 1514 | } |
| 1515 | return TRUE; |
| 1516 | } |
| 1517 | |
| 1518 | int |
| 1519 | ImageText(ClientPtr client, DrawablePtr pDraw, GC * pGC, int nChars, |
| 1520 | unsigned char *data, int xorg, int yorg, int reqType, XID did) |
| 1521 | { |
| 1522 | ITclosureRec local_closure; |
| 1523 | |
| 1524 | local_closure.client = client; |
| 1525 | local_closure.pDraw = pDraw; |
| 1526 | local_closure.pGC = pGC; |
| 1527 | local_closure.nChars = nChars; |
| 1528 | local_closure.data = data; |
| 1529 | local_closure.xorg = xorg; |
| 1530 | local_closure.yorg = yorg; |
| 1531 | local_closure.reqType = reqType; |
| 1532 | local_closure.did = did; |
| 1533 | |
| 1534 | (void) doImageText(client, &local_closure); |
| 1535 | return Success; |
| 1536 | } |
| 1537 | |
| 1538 | /* does the necessary magic to figure out the fpe type */ |
| 1539 | static int |
| 1540 | DetermineFPEType(char *pathname) |
| 1541 | { |
| 1542 | int i; |
| 1543 | |
| 1544 | for (i = 0; i < num_fpe_types; i++) { |
| 1545 | if ((*fpe_functions[i].name_check) (pathname)) |
| 1546 | return i; |
| 1547 | } |
| 1548 | return -1; |
| 1549 | } |
| 1550 | |
| 1551 | static void |
| 1552 | FreeFontPath(FontPathElementPtr * list, int n, Bool force) |
| 1553 | { |
| 1554 | int i; |
| 1555 | |
| 1556 | for (i = 0; i < n; i++) { |
| 1557 | if (force) { |
| 1558 | /* Sanity check that all refcounts will be 0 by the time |
| 1559 | we get to the end of the list. */ |
| 1560 | int found = 1; /* the first reference is us */ |
| 1561 | int j; |
| 1562 | |
| 1563 | for (j = i + 1; j < n; j++) { |
| 1564 | if (list[j] == list[i]) |
| 1565 | found++; |
| 1566 | } |
| 1567 | if (list[i]->refcount != found) { |
| 1568 | list[i]->refcount = found; /* ensure it will get freed */ |
| 1569 | } |
| 1570 | } |
| 1571 | FreeFPE(list[i]); |
| 1572 | } |
| 1573 | free(list); |
| 1574 | } |
| 1575 | |
| 1576 | static FontPathElementPtr |
| 1577 | find_existing_fpe(FontPathElementPtr * list, int num, unsigned char *name, |
| 1578 | int len) |
| 1579 | { |
| 1580 | FontPathElementPtr fpe; |
| 1581 | int i; |
| 1582 | |
| 1583 | for (i = 0; i < num; i++) { |
| 1584 | fpe = list[i]; |
| 1585 | if (fpe->name_length == len && memcmp(name, fpe->name, len) == 0) |
| 1586 | return fpe; |
| 1587 | } |
| 1588 | return (FontPathElementPtr) 0; |
| 1589 | } |
| 1590 | |
| 1591 | static int |
| 1592 | SetFontPathElements(int npaths, unsigned char *paths, int *bad, Bool persist) |
| 1593 | { |
| 1594 | int i, err = 0; |
| 1595 | int valid_paths = 0; |
| 1596 | unsigned int len; |
| 1597 | unsigned char *cp = paths; |
| 1598 | FontPathElementPtr fpe = NULL, *fplist; |
| 1599 | |
| 1600 | fplist = malloc(sizeof(FontPathElementPtr) * npaths); |
| 1601 | if (!fplist) { |
| 1602 | *bad = 0; |
| 1603 | return BadAlloc; |
| 1604 | } |
| 1605 | for (i = 0; i < num_fpe_types; i++) { |
| 1606 | if (fpe_functions[i].set_path_hook) |
| 1607 | (*fpe_functions[i].set_path_hook) (); |
| 1608 | } |
| 1609 | for (i = 0; i < npaths; i++) { |
| 1610 | len = (unsigned int) (*cp++); |
| 1611 | |
| 1612 | if (len == 0) { |
| 1613 | if (persist) |
| 1614 | ErrorF |
| 1615 | ("[dix] Removing empty element from the valid list of fontpaths\n"); |
| 1616 | err = BadValue; |
| 1617 | } |
| 1618 | else { |
| 1619 | /* if it's already in our active list, just reset it */ |
| 1620 | /* |
| 1621 | * note that this can miss FPE's in limbo -- may be worth catching |
| 1622 | * them, though it'd muck up refcounting |
| 1623 | */ |
| 1624 | fpe = find_existing_fpe(font_path_elements, num_fpes, cp, len); |
| 1625 | if (fpe) { |
| 1626 | err = (*fpe_functions[fpe->type].reset_fpe) (fpe); |
| 1627 | if (err == Successful) { |
| 1628 | UseFPE(fpe); /* since it'll be decref'd later when freed |
| 1629 | * from the old list */ |
| 1630 | } |
| 1631 | else |
| 1632 | fpe = 0; |
| 1633 | } |
| 1634 | /* if error or can't do it, act like it's a new one */ |
| 1635 | if (!fpe) { |
| 1636 | fpe = malloc(sizeof(FontPathElementRec)); |
| 1637 | if (!fpe) { |
| 1638 | err = BadAlloc; |
| 1639 | goto bail; |
| 1640 | } |
| 1641 | fpe->name = malloc(len + 1); |
| 1642 | if (!fpe->name) { |
| 1643 | free(fpe); |
| 1644 | err = BadAlloc; |
| 1645 | goto bail; |
| 1646 | } |
| 1647 | fpe->refcount = 1; |
| 1648 | |
| 1649 | strncpy(fpe->name, (char *) cp, (int) len); |
| 1650 | fpe->name[len] = '\0'; |
| 1651 | fpe->name_length = len; |
| 1652 | fpe->type = DetermineFPEType(fpe->name); |
| 1653 | if (fpe->type == -1) |
| 1654 | err = BadValue; |
| 1655 | else |
| 1656 | err = (*fpe_functions[fpe->type].init_fpe) (fpe); |
| 1657 | if (err != Successful) { |
| 1658 | if (persist) { |
| 1659 | ErrorF |
| 1660 | ("[dix] Could not init font path element %s, removing from list!\n", |
| 1661 | fpe->name); |
| 1662 | } |
| 1663 | free(fpe->name); |
| 1664 | free(fpe); |
| 1665 | } |
| 1666 | } |
| 1667 | } |
| 1668 | if (err != Successful) { |
| 1669 | if (!persist) |
| 1670 | goto bail; |
| 1671 | } |
| 1672 | else { |
| 1673 | fplist[valid_paths++] = fpe; |
| 1674 | } |
| 1675 | cp += len; |
| 1676 | } |
| 1677 | |
| 1678 | FreeFontPath(font_path_elements, num_fpes, FALSE); |
| 1679 | font_path_elements = fplist; |
| 1680 | if (patternCache) |
| 1681 | EmptyFontPatternCache(patternCache); |
| 1682 | num_fpes = valid_paths; |
| 1683 | |
| 1684 | return Success; |
| 1685 | bail: |
| 1686 | *bad = i; |
| 1687 | while (--valid_paths >= 0) |
| 1688 | FreeFPE(fplist[valid_paths]); |
| 1689 | free(fplist); |
| 1690 | return FontToXError(err); |
| 1691 | } |
| 1692 | |
| 1693 | int |
| 1694 | SetFontPath(ClientPtr client, int npaths, unsigned char *paths) |
| 1695 | { |
| 1696 | int err = XaceHook(XACE_SERVER_ACCESS, client, DixManageAccess); |
| 1697 | |
| 1698 | if (err != Success) |
| 1699 | return err; |
| 1700 | |
| 1701 | if (npaths == 0) { |
| 1702 | if (SetDefaultFontPath(defaultFontPath) != Success) |
| 1703 | return BadValue; |
| 1704 | } |
| 1705 | else { |
| 1706 | int bad; |
| 1707 | |
| 1708 | err = SetFontPathElements(npaths, paths, &bad, FALSE); |
| 1709 | client->errorValue = bad; |
| 1710 | } |
| 1711 | return err; |
| 1712 | } |
| 1713 | |
| 1714 | int |
| 1715 | SetDefaultFontPath(char *path) |
| 1716 | { |
| 1717 | char *temp_path, *start, *end; |
| 1718 | unsigned char *cp, *pp, *nump, *newpath; |
| 1719 | int num = 1, len, err, size = 0, bad; |
| 1720 | |
| 1721 | /* ensure temp_path contains "built-ins" */ |
| 1722 | start = path; |
| 1723 | while (1) { |
| 1724 | start = strstr(start, "built-ins"); |
| 1725 | if (start == NULL) |
| 1726 | break; |
| 1727 | end = start + strlen("built-ins"); |
| 1728 | if ((start == path || start[-1] == ',') && (!*end || *end == ',')) |
| 1729 | break; |
| 1730 | start = end; |
| 1731 | } |
| 1732 | if (!start) { |
| 1733 | if (asprintf(&temp_path, "%s%sbuilt-ins", path, *path ? "," : "") |
| 1734 | == -1) |
| 1735 | temp_path = NULL; |
| 1736 | } |
| 1737 | else { |
| 1738 | temp_path = strdup(path); |
| 1739 | } |
| 1740 | if (!temp_path) |
| 1741 | return BadAlloc; |
| 1742 | |
| 1743 | /* get enough for string, plus values -- use up commas */ |
| 1744 | len = strlen(temp_path) + 1; |
| 1745 | nump = cp = newpath = malloc(len); |
| 1746 | if (!newpath) { |
| 1747 | free(temp_path); |
| 1748 | return BadAlloc; |
| 1749 | } |
| 1750 | pp = (unsigned char *) temp_path; |
| 1751 | cp++; |
| 1752 | while (*pp) { |
| 1753 | if (*pp == ',') { |
| 1754 | *nump = (unsigned char) size; |
| 1755 | nump = cp++; |
| 1756 | pp++; |
| 1757 | num++; |
| 1758 | size = 0; |
| 1759 | } |
| 1760 | else { |
| 1761 | *cp++ = *pp++; |
| 1762 | size++; |
| 1763 | } |
| 1764 | } |
| 1765 | *nump = (unsigned char) size; |
| 1766 | |
| 1767 | err = SetFontPathElements(num, newpath, &bad, TRUE); |
| 1768 | |
| 1769 | free(newpath); |
| 1770 | free(temp_path); |
| 1771 | |
| 1772 | return err; |
| 1773 | } |
| 1774 | |
| 1775 | int |
| 1776 | GetFontPath(ClientPtr client, int *count, int *length, unsigned char **result) |
| 1777 | { |
| 1778 | int i; |
| 1779 | unsigned char *c; |
| 1780 | int len; |
| 1781 | FontPathElementPtr fpe; |
| 1782 | |
| 1783 | i = XaceHook(XACE_SERVER_ACCESS, client, DixGetAttrAccess); |
| 1784 | if (i != Success) |
| 1785 | return i; |
| 1786 | |
| 1787 | len = 0; |
| 1788 | for (i = 0; i < num_fpes; i++) { |
| 1789 | fpe = font_path_elements[i]; |
| 1790 | len += fpe->name_length + 1; |
| 1791 | } |
| 1792 | c = realloc(font_path_string, len); |
| 1793 | if (c == NULL) { |
| 1794 | free(font_path_string); |
| 1795 | font_path_string = NULL; |
| 1796 | return BadAlloc; |
| 1797 | } |
| 1798 | |
| 1799 | font_path_string = c; |
| 1800 | *length = 0; |
| 1801 | for (i = 0; i < num_fpes; i++) { |
| 1802 | fpe = font_path_elements[i]; |
| 1803 | *c = fpe->name_length; |
| 1804 | *length += *c++; |
| 1805 | memmove(c, fpe->name, fpe->name_length); |
| 1806 | c += fpe->name_length; |
| 1807 | } |
| 1808 | *count = num_fpes; |
| 1809 | *result = font_path_string; |
| 1810 | return Success; |
| 1811 | } |
| 1812 | |
| 1813 | void |
| 1814 | DeleteClientFontStuff(ClientPtr client) |
| 1815 | { |
| 1816 | int i; |
| 1817 | FontPathElementPtr fpe; |
| 1818 | |
| 1819 | for (i = 0; i < num_fpes; i++) { |
| 1820 | fpe = font_path_elements[i]; |
| 1821 | if (fpe_functions[fpe->type].client_died) |
| 1822 | (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe); |
| 1823 | } |
| 1824 | } |
| 1825 | |
| 1826 | void |
| 1827 | InitFonts(void) |
| 1828 | { |
| 1829 | patternCache = MakeFontPatternCache(); |
| 1830 | |
| 1831 | register_fpe_functions(); |
| 1832 | } |
| 1833 | |
| 1834 | _X_EXPORT |
| 1835 | int |
| 1836 | GetDefaultPointSize(void) |
| 1837 | { |
| 1838 | return 120; |
| 1839 | } |
| 1840 | |
| 1841 | _X_EXPORT |
| 1842 | FontResolutionPtr |
| 1843 | GetClientResolutions(int *num) |
| 1844 | { |
| 1845 | static struct _FontResolution res; |
| 1846 | ScreenPtr pScreen; |
| 1847 | |
| 1848 | pScreen = screenInfo.screens[0]; |
| 1849 | res.x_resolution = (pScreen->width * 25.4) / pScreen->mmWidth; |
| 1850 | /* |
| 1851 | * XXX - we'll want this as long as bitmap instances are prevalent |
| 1852 | so that we can match them from scalable fonts |
| 1853 | */ |
| 1854 | if (res.x_resolution < 88) |
| 1855 | res.x_resolution = 75; |
| 1856 | else |
| 1857 | res.x_resolution = 100; |
| 1858 | res.y_resolution = (pScreen->height * 25.4) / pScreen->mmHeight; |
| 1859 | if (res.y_resolution < 88) |
| 1860 | res.y_resolution = 75; |
| 1861 | else |
| 1862 | res.y_resolution = 100; |
| 1863 | res.point_size = 120; |
| 1864 | *num = 1; |
| 1865 | return &res; |
| 1866 | } |
| 1867 | |
| 1868 | /* |
| 1869 | * returns the type index of the new fpe |
| 1870 | * |
| 1871 | * should be called (only once!) by each type of fpe when initialized |
| 1872 | */ |
| 1873 | |
| 1874 | _X_EXPORT |
| 1875 | int |
| 1876 | RegisterFPEFunctions(NameCheckFunc name_func, |
| 1877 | InitFpeFunc init_func, |
| 1878 | FreeFpeFunc free_func, |
| 1879 | ResetFpeFunc reset_func, |
| 1880 | OpenFontFunc open_func, |
| 1881 | CloseFontFunc close_func, |
| 1882 | ListFontsFunc list_func, |
| 1883 | StartLfwiFunc start_lfwi_func, |
| 1884 | NextLfwiFunc next_lfwi_func, |
| 1885 | WakeupFpeFunc wakeup_func, |
| 1886 | ClientDiedFunc client_died, |
| 1887 | LoadGlyphsFunc load_glyphs, |
| 1888 | StartLaFunc start_list_alias_func, |
| 1889 | NextLaFunc next_list_alias_func, SetPathFunc set_path_func) |
| 1890 | { |
| 1891 | FPEFunctions *new; |
| 1892 | |
| 1893 | /* grow the list */ |
| 1894 | new = (FPEFunctions *) realloc(fpe_functions, |
| 1895 | (num_fpe_types + 1) * sizeof(FPEFunctions)); |
| 1896 | if (!new) |
| 1897 | return -1; |
| 1898 | fpe_functions = new; |
| 1899 | |
| 1900 | fpe_functions[num_fpe_types].name_check = name_func; |
| 1901 | fpe_functions[num_fpe_types].open_font = open_func; |
| 1902 | fpe_functions[num_fpe_types].close_font = close_func; |
| 1903 | fpe_functions[num_fpe_types].wakeup_fpe = wakeup_func; |
| 1904 | fpe_functions[num_fpe_types].list_fonts = list_func; |
| 1905 | fpe_functions[num_fpe_types].start_list_fonts_with_info = start_lfwi_func; |
| 1906 | fpe_functions[num_fpe_types].list_next_font_with_info = next_lfwi_func; |
| 1907 | fpe_functions[num_fpe_types].init_fpe = init_func; |
| 1908 | fpe_functions[num_fpe_types].free_fpe = free_func; |
| 1909 | fpe_functions[num_fpe_types].reset_fpe = reset_func; |
| 1910 | fpe_functions[num_fpe_types].client_died = client_died; |
| 1911 | fpe_functions[num_fpe_types].load_glyphs = load_glyphs; |
| 1912 | fpe_functions[num_fpe_types].start_list_fonts_and_aliases = |
| 1913 | start_list_alias_func; |
| 1914 | fpe_functions[num_fpe_types].list_next_font_or_alias = next_list_alias_func; |
| 1915 | fpe_functions[num_fpe_types].set_path_hook = set_path_func; |
| 1916 | |
| 1917 | return num_fpe_types++; |
| 1918 | } |
| 1919 | |
| 1920 | void |
| 1921 | FreeFonts(void) |
| 1922 | { |
| 1923 | if (patternCache) { |
| 1924 | FreeFontPatternCache(patternCache); |
| 1925 | patternCache = 0; |
| 1926 | } |
| 1927 | FreeFontPath(font_path_elements, num_fpes, TRUE); |
| 1928 | font_path_elements = 0; |
| 1929 | num_fpes = 0; |
| 1930 | free(fpe_functions); |
| 1931 | num_fpe_types = 0; |
| 1932 | fpe_functions = (FPEFunctions *) 0; |
| 1933 | } |
| 1934 | |
| 1935 | /* convenience functions for FS interface */ |
| 1936 | |
| 1937 | FontPtr |
| 1938 | find_old_font(XID id) |
| 1939 | { |
| 1940 | pointer pFont; |
| 1941 | |
| 1942 | dixLookupResourceByType(&pFont, id, RT_NONE, serverClient, DixReadAccess); |
| 1943 | return (FontPtr) pFont; |
| 1944 | } |
| 1945 | |
| 1946 | _X_EXPORT |
| 1947 | Font |
| 1948 | GetNewFontClientID(void) |
| 1949 | { |
| 1950 | return FakeClientID(0); |
| 1951 | } |
| 1952 | |
| 1953 | _X_EXPORT |
| 1954 | int |
| 1955 | StoreFontClientFont(FontPtr pfont, Font id) |
| 1956 | { |
| 1957 | return AddResource(id, RT_NONE, (pointer) pfont); |
| 1958 | } |
| 1959 | |
| 1960 | _X_EXPORT |
| 1961 | void |
| 1962 | DeleteFontClientID(Font id) |
| 1963 | { |
| 1964 | FreeResource(id, RT_NONE); |
| 1965 | } |
| 1966 | |
| 1967 | _X_EXPORT |
| 1968 | int |
| 1969 | client_auth_generation(ClientPtr client) |
| 1970 | { |
| 1971 | return 0; |
| 1972 | } |
| 1973 | |
| 1974 | static int fs_handlers_installed = 0; |
| 1975 | static unsigned int last_server_gen; |
| 1976 | |
| 1977 | _X_EXPORT |
| 1978 | int |
| 1979 | init_fs_handlers(FontPathElementPtr fpe, BlockHandlerProcPtr block_handler) |
| 1980 | { |
| 1981 | /* if server has reset, make sure the b&w handlers are reinstalled */ |
| 1982 | if (last_server_gen < serverGeneration) { |
| 1983 | last_server_gen = serverGeneration; |
| 1984 | fs_handlers_installed = 0; |
| 1985 | } |
| 1986 | if (fs_handlers_installed == 0) { |
| 1987 | if (!RegisterBlockAndWakeupHandlers(block_handler, |
| 1988 | FontWakeup, (pointer) 0)) |
| 1989 | return AllocError; |
| 1990 | fs_handlers_installed++; |
| 1991 | } |
| 1992 | QueueFontWakeup(fpe); |
| 1993 | return Successful; |
| 1994 | } |
| 1995 | |
| 1996 | _X_EXPORT |
| 1997 | void |
| 1998 | remove_fs_handlers(FontPathElementPtr fpe, BlockHandlerProcPtr block_handler, |
| 1999 | Bool all) |
| 2000 | { |
| 2001 | if (all) { |
| 2002 | /* remove the handlers if no one else is using them */ |
| 2003 | if (--fs_handlers_installed == 0) { |
| 2004 | RemoveBlockAndWakeupHandlers(block_handler, FontWakeup, |
| 2005 | (pointer) 0); |
| 2006 | } |
| 2007 | } |
| 2008 | RemoveFontWakeup(fpe); |
| 2009 | } |