Commit | Line | Data |
---|---|---|
a09e091a JB |
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 | } |