1 /*
2 * Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #if defined(__linux__) || defined(_BSDONLY_SOURCE)
27 #include <string.h>
28 #endif /* __linux__ */
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <strings.h>
32 #include <sys/types.h>
33 #include <sys/stat.h>
34 #include <sys/mman.h>
35 #include <fcntl.h>
36 #include <unistd.h>
37 #ifdef __solaris__
38 #include <sys/systeminfo.h>
39 #endif
40
41 #include <jni.h>
42 #include <jni_util.h>
43 #include <jvm_md.h>
44 #include <sizecalc.h>
45 #ifndef HEADLESS
46 #include <X11/Xlib.h>
47 #include <awt.h>
48 #else
49 /* locks ought to be included from awt.h */
50 #define AWT_LOCK()
51 #define AWT_UNLOCK()
52 #endif /* !HEADLESS */
53
54 #if defined(__linux__) && !defined(MAP_FAILED)
55 #define MAP_FAILED ((caddr_t)-1)
56 #endif
57
58 #ifndef HEADLESS
59 extern Display *awt_display;
60 #endif /* !HEADLESS */
61
62 #define FONTCONFIG_DLL_VERSIONED VERSIONED_JNI_LIB_NAME("fontconfig", "1")
63 #define FONTCONFIG_DLL JNI_LIB_NAME("fontconfig")
64
65 #define MAXFDIRS 512 /* Max number of directories that contain fonts */
66
67 #if defined(__solaris__)
68 /*
69 * This can be set in the makefile to "/usr/X11" if so desired.
70 */
71 #ifndef OPENWINHOMELIB
72 #define OPENWINHOMELIB "/usr/openwin/lib/"
73 #endif
74
75 /* This is all known Solaris X11 directories on Solaris 8, 9 and 10.
76 * It is ordered to give precedence to TrueType directories.
77 * It is needed if fontconfig is not installed or configured properly.
78 */
79 static char *fullSolarisFontPath[] = {
80 OPENWINHOMELIB "X11/fonts/TrueType",
81 OPENWINHOMELIB "locale/euro_fonts/X11/fonts/TrueType",
82 OPENWINHOMELIB "locale/iso_8859_2/X11/fonts/TrueType",
83 OPENWINHOMELIB "locale/iso_8859_5/X11/fonts/TrueType",
84 OPENWINHOMELIB "locale/iso_8859_7/X11/fonts/TrueType",
85 OPENWINHOMELIB "locale/iso_8859_8/X11/fonts/TrueType",
86 OPENWINHOMELIB "locale/iso_8859_9/X11/fonts/TrueType",
87 OPENWINHOMELIB "locale/iso_8859_13/X11/fonts/TrueType",
88 OPENWINHOMELIB "locale/iso_8859_15/X11/fonts/TrueType",
89 OPENWINHOMELIB "locale/ar/X11/fonts/TrueType",
90 OPENWINHOMELIB "locale/hi_IN.UTF-8/X11/fonts/TrueType",
91 OPENWINHOMELIB "locale/ja/X11/fonts/TT",
92 OPENWINHOMELIB "locale/ko/X11/fonts/TrueType",
93 OPENWINHOMELIB "locale/ko.UTF-8/X11/fonts/TrueType",
94 OPENWINHOMELIB "locale/KOI8-R/X11/fonts/TrueType",
95 OPENWINHOMELIB "locale/ru.ansi-1251/X11/fonts/TrueType",
96 OPENWINHOMELIB "locale/th_TH/X11/fonts/TrueType",
97 OPENWINHOMELIB "locale/zh_TW/X11/fonts/TrueType",
98 OPENWINHOMELIB "locale/zh_TW.BIG5/X11/fonts/TT",
99 OPENWINHOMELIB "locale/zh_HK.BIG5HK/X11/fonts/TT",
100 OPENWINHOMELIB "locale/zh_CN.GB18030/X11/fonts/TrueType",
101 OPENWINHOMELIB "locale/zh/X11/fonts/TrueType",
102 OPENWINHOMELIB "locale/zh.GBK/X11/fonts/TrueType",
103 OPENWINHOMELIB "X11/fonts/Type1",
104 OPENWINHOMELIB "X11/fonts/Type1/sun",
105 OPENWINHOMELIB "X11/fonts/Type1/sun/outline",
106 OPENWINHOMELIB "locale/iso_8859_2/X11/fonts/Type1",
107 OPENWINHOMELIB "locale/iso_8859_4/X11/fonts/Type1",
108 OPENWINHOMELIB "locale/iso_8859_5/X11/fonts/Type1",
109 OPENWINHOMELIB "locale/iso_8859_7/X11/fonts/Type1",
110 OPENWINHOMELIB "locale/iso_8859_8/X11/fonts/Type1",
111 OPENWINHOMELIB "locale/iso_8859_9/X11/fonts/Type1",
112 OPENWINHOMELIB "locale/iso_8859_13/X11/fonts/Type1",
113 OPENWINHOMELIB "locale/ar/X11/fonts/Type1",
114 NULL, /* terminates the list */
115 };
116
117 #elif defined( __linux__)
118 /* All the known interesting locations we have discovered on
119 * various flavors of Linux
120 */
121 static char *fullLinuxFontPath[] = {
122 "/usr/X11R6/lib/X11/fonts/TrueType", /* RH 7.1+ */
123 "/usr/X11R6/lib/X11/fonts/truetype", /* SuSE */
124 "/usr/X11R6/lib/X11/fonts/tt",
125 "/usr/X11R6/lib/X11/fonts/TTF",
126 "/usr/X11R6/lib/X11/fonts/OTF", /* RH 9.0 (but empty!) */
127 "/usr/share/fonts/ja/TrueType", /* RH 7.2+ */
128 "/usr/share/fonts/truetype",
129 "/usr/share/fonts/ko/TrueType", /* RH 9.0 */
130 "/usr/share/fonts/zh_CN/TrueType", /* RH 9.0 */
131 "/usr/share/fonts/zh_TW/TrueType", /* RH 9.0 */
132 "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType", /* Debian */
133 "/usr/X11R6/lib/X11/fonts/Type1",
134 "/usr/share/fonts/default/Type1", /* RH 9.0 */
135 NULL, /* terminates the list */
136 };
137 #elif defined(_AIX)
138 static char *fullAixFontPath[] = {
139 "/usr/lpp/X11/lib/X11/fonts/Type1", /* from X11.fnt.iso_T1 */
140 "/usr/lpp/X11/lib/X11/fonts/TrueType", /* from X11.fnt.ucs.ttf */
141 NULL, /* terminates the list */
142 };
143 #endif
144
145 static char **getFontConfigLocations();
146
147 typedef struct {
148 const char *name[MAXFDIRS];
149 int num;
150 } fDirRecord, *fDirRecordPtr;
151
152 #ifndef HEADLESS
153
154 /*
155 * Returns True if display is local, False of it's remote.
156 */
isDisplayLocal(JNIEnv * env)157 jboolean isDisplayLocal(JNIEnv *env) {
158 static jboolean isLocal = False;
159 static jboolean isLocalSet = False;
160 jboolean ret;
161
162 if (! isLocalSet) {
163 jclass geCls = (*env)->FindClass(env, "java/awt/GraphicsEnvironment");
164 CHECK_NULL_RETURN(geCls, JNI_FALSE);
165 jmethodID getLocalGE = (*env)->GetStaticMethodID(env, geCls,
166 "getLocalGraphicsEnvironment",
167 "()Ljava/awt/GraphicsEnvironment;");
168 CHECK_NULL_RETURN(getLocalGE, JNI_FALSE);
169 jobject ge = (*env)->CallStaticObjectMethod(env, geCls, getLocalGE);
170 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE);
171
172 jclass sgeCls = (*env)->FindClass(env,
173 "sun/java2d/SunGraphicsEnvironment");
174 CHECK_NULL_RETURN(sgeCls, JNI_FALSE);
175 if ((*env)->IsInstanceOf(env, ge, sgeCls)) {
176 jmethodID isDisplayLocal = (*env)->GetMethodID(env, sgeCls,
177 "isDisplayLocal",
178 "()Z");
179 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE);
180 isLocal = (*env)->CallBooleanMethod(env, ge, isDisplayLocal);
181 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE);
182 } else {
183 isLocal = True;
184 }
185 isLocalSet = True;
186 }
187
188 return isLocal;
189 }
190
AddFontsToX11FontPath(fDirRecord * fDirP)191 static void AddFontsToX11FontPath ( fDirRecord *fDirP )
192 {
193 char *onePath;
194 int index, nPaths;
195 int origNumPaths, length;
196 int origIndex;
197 int totalDirCount;
198 char **origFontPath;
199 char **tempFontPath;
200 int doNotAppend;
201 int *appendDirList;
202 char **newFontPath;
203 int err, compareLength;
204 char fontDirPath[512];
205 int dirFile;
206
207 doNotAppend = 0;
208
209 if ( fDirP->num == 0 ) return;
210
211 appendDirList = SAFE_SIZE_ARRAY_ALLOC(malloc, fDirP->num, sizeof ( int ));
212 if ( appendDirList == NULL ) {
213 return; /* if it fails we cannot do much */
214 }
215
216 origFontPath = XGetFontPath ( awt_display, &nPaths );
217
218 totalDirCount = nPaths;
219 origNumPaths = nPaths;
220 tempFontPath = origFontPath;
221
222
223 for (index = 0; index < fDirP->num; index++ ) {
224
225 doNotAppend = 0;
226
227 tempFontPath = origFontPath;
228 for ( origIndex = 0; origIndex < nPaths; origIndex++ ) {
229
230 onePath = *tempFontPath;
231
232 compareLength = strlen ( onePath );
233 if ( onePath[compareLength -1] == '/' )
234 compareLength--;
235
236 /* there is a slash at the end of every solaris X11 font path name */
237 if ( strncmp ( onePath, fDirP->name[index], compareLength ) == 0 ) {
238 doNotAppend = 1;
239 break;
240 }
241 tempFontPath++;
242 }
243
244 appendDirList[index] = 0;
245 if ( doNotAppend == 0 ) {
246 snprintf(fontDirPath, sizeof(fontDirPath), "%s/fonts.dir", fDirP->name[index]);
247 fontDirPath[sizeof(fontDirPath) - 1] = '\0';
248 dirFile = open ( fontDirPath, O_RDONLY, 0 );
249 if ( dirFile == -1 ) {
250 doNotAppend = 1;
251 } else {
252 close ( dirFile );
253 totalDirCount++;
254 appendDirList[index] = 1;
255 }
256 }
257
258 }
259
260 /* if no changes are required do not bother to do a setfontpath */
261 if ( totalDirCount == nPaths ) {
262 free ( ( void *) appendDirList );
263 XFreeFontPath ( origFontPath );
264 return;
265 }
266
267
268 newFontPath = SAFE_SIZE_ARRAY_ALLOC(malloc, totalDirCount, sizeof(char *));
269 /* if it fails free things and get out */
270 if ( newFontPath == NULL ) {
271 free ( ( void *) appendDirList );
272 XFreeFontPath ( origFontPath );
273 return;
274 }
275
276 for ( origIndex = 0; origIndex < nPaths; origIndex++ ) {
277 onePath = origFontPath[origIndex];
278 newFontPath[origIndex] = onePath;
279 }
280
281 /* now add the other font paths */
282
283 for (index = 0; index < fDirP->num; index++ ) {
284
285 if ( appendDirList[index] == 1 ) {
286
287 /* printf ( "Appending %s\n", fDirP->name[index] ); */
288
289 onePath = SAFE_SIZE_ARRAY_ALLOC(malloc, strlen (fDirP->name[index]) + 2, sizeof( char ) );
290 if (onePath == NULL) {
291 free ( ( void *) appendDirList );
292
293 for ( index = origIndex; index < nPaths; index++ ) {
294 free( newFontPath[index] );
295 }
296
297 free( ( void *) newFontPath);
298 XFreeFontPath ( origFontPath );
299 return;
300 }
301 strcpy ( onePath, fDirP->name[index] );
302 strcat ( onePath, "/" );
303 newFontPath[nPaths++] = onePath;
304 /* printf ( "The path to be appended is %s\n", onePath ); */
305 }
306 }
307
308 /* printf ( "The dir count = %d\n", totalDirCount ); */
309 free ( ( void *) appendDirList );
310
311 XSetFontPath ( awt_display, newFontPath, totalDirCount );
312
313 for ( index = origNumPaths; index < totalDirCount; index++ ) {
314 free( newFontPath[index] );
315 }
316
317 free ( (void *) newFontPath );
318 XFreeFontPath ( origFontPath );
319 return;
320 }
321 #endif /* !HEADLESS */
322
323
324 #ifndef HEADLESS
getX11FontPath()325 static char **getX11FontPath ()
326 {
327 char **x11Path, **fontdirs;
328 int i, pos, slen, nPaths, numDirs;
329
330 x11Path = XGetFontPath (awt_display, &nPaths);
331
332 /* This isn't ever going to be perfect: the font path may contain
333 * much we aren't interested in, but the cost should be moderate
334 * Exclude all directories that contain the strings "Speedo","/F3/",
335 * "75dpi", "100dpi", "misc" or "bitmap", or don't begin with a "/",
336 * the last of which should exclude font servers.
337 * Also exclude the user specific ".gnome*" directories which
338 * aren't going to contain the system fonts we need.
339 * Hopefully we are left only with Type1 and TrueType directories.
340 * It doesn't matter much if there are extraneous directories, it'll just
341 * cost us a little wasted effort upstream.
342 */
343 fontdirs = (char**)calloc(nPaths+1, sizeof(char*));
344 pos = 0;
345 for (i=0; i < nPaths; i++) {
346 if (x11Path[i][0] != '/') {
347 continue;
348 }
349 if (strstr(x11Path[i], "/75dpi") != NULL) {
350 continue;
351 }
352 if (strstr(x11Path[i], "/100dpi") != NULL) {
353 continue;
354 }
355 if (strstr(x11Path[i], "/misc") != NULL) {
356 continue;
357 }
358 if (strstr(x11Path[i], "/Speedo") != NULL) {
359 continue;
360 }
361 if (strstr(x11Path[i], ".gnome") != NULL) {
362 continue;
363 }
364 #ifdef __solaris__
365 if (strstr(x11Path[i], "/F3/") != NULL) {
366 continue;
367 }
368 if (strstr(x11Path[i], "bitmap") != NULL) {
369 continue;
370 }
371 #endif
372 fontdirs[pos] = strdup(x11Path[i]);
373 slen = strlen(fontdirs[pos]);
374 if (slen > 0 && fontdirs[pos][slen-1] == '/') {
375 fontdirs[pos][slen-1] = '\0'; /* null out trailing "/" */
376 }
377 pos++;
378 }
379
380 XFreeFontPath(x11Path);
381 if (pos == 0) {
382 free(fontdirs);
383 fontdirs = NULL;
384 }
385 return fontdirs;
386 }
387
388
389 #endif /* !HEADLESS */
390
391 #if defined(__linux__)
392 /* from awt_LoadLibrary.c */
393 JNIEXPORT jboolean JNICALL AWTIsHeadless();
394 #endif
395
396 /* This eliminates duplicates, at a non-linear but acceptable cost
397 * since the lists are expected to be reasonably short, and then
398 * deletes references to non-existent directories, and returns
399 * a single path consisting of unique font directories.
400 */
mergePaths(char ** p1,char ** p2,char ** p3,jboolean noType1)401 static char* mergePaths(char **p1, char **p2, char **p3, jboolean noType1) {
402
403 int len1=0, len2=0, len3=0, totalLen=0, numDirs=0,
404 currLen, i, j, found, pathLen=0;
405 char **ptr, **fontdirs;
406 char *fontPath = NULL;
407
408 if (p1 != NULL) {
409 ptr = p1;
410 while (*ptr++ != NULL) len1++;
411 }
412 if (p2 != NULL) {
413 ptr = p2;
414
415 while (*ptr++ != NULL) len2++;
416 }
417 if (p3 != NULL) {
418 ptr = p3;
419 while (*ptr++ != NULL) len3++;
420 }
421 totalLen = len1+len2+len3;
422 fontdirs = (char**)calloc(totalLen, sizeof(char*));
423
424 for (i=0; i < len1; i++) {
425 if (noType1 && strstr(p1[i], "Type1") != NULL) {
426 continue;
427 }
428 fontdirs[numDirs++] = p1[i];
429 }
430
431 currLen = numDirs; /* only compare against previous path dirs */
432 for (i=0; i < len2; i++) {
433 if (noType1 && strstr(p2[i], "Type1") != NULL) {
434 continue;
435 }
436 found = 0;
437 for (j=0; j < currLen; j++) {
438 if (strcmp(fontdirs[j], p2[i]) == 0) {
439 found = 1;
440 break;
441 }
442 }
443 if (!found) {
444 fontdirs[numDirs++] = p2[i];
445 }
446 }
447
448 currLen = numDirs; /* only compare against previous path dirs */
449 for (i=0; i < len3; i++) {
450 if (noType1 && strstr(p3[i], "Type1") != NULL) {
451 continue;
452 }
453 found = 0;
454 for (j=0; j < currLen; j++) {
455 if (strcmp(fontdirs[j], p3[i]) == 0) {
456 found = 1;
457 break;
458 }
459 }
460 if (!found) {
461 fontdirs[numDirs++] = p3[i];
462 }
463 }
464
465 /* Now fontdirs contains unique dirs and numDirs records how many.
466 * What we don't know is if they all exist. On reflection I think
467 * this isn't an issue, so for now I will return all these locations,
468 * converted to one string */
469 for (i=0; i<numDirs; i++) {
470 pathLen += (strlen(fontdirs[i]) + 1);
471 }
472 if (pathLen > 0 && (fontPath = malloc(pathLen))) {
473 *fontPath = '\0';
474 for (i = 0; i<numDirs; i++) {
475 if (i != 0) {
476 strcat(fontPath, ":");
477 }
478 strcat(fontPath, fontdirs[i]);
479 }
480 }
481 free (fontdirs);
482
483 return fontPath;
484 }
485
486 /*
487 * The goal of this function is to find all "system" fonts which
488 * are needed by the JRE to display text in supported locales etc, and
489 * to support APIs which allow users to enumerate all system fonts and use
490 * them from their Java applications.
491 * The preferred mechanism is now using the new "fontconfig" library
492 * This exists on newer versions of Linux and Solaris (S10 and above)
493 * The library is dynamically located. The results are merged with
494 * a set of "known" locations and with the X11 font path, if running in
495 * a local X11 environment.
496 * The hardwired paths are built into the JDK binary so as new font locations
497 * are created on a host plaform for them to be located by the JRE they will
498 * need to be added ito the host's font configuration database, typically
499 * /etc/fonts/local.conf, and to ensure that directory contains a fonts.dir
500 * NB: Fontconfig also depends heavily for performance on the host O/S
501 * maintaining up to date caches.
502 * This is consistent with the requirements of the desktop environments
503 * on these OSes.
504 * This also frees us from X11 APIs as JRE is required to function in
505 * a "headless" mode where there is no Xserver.
506 */
getPlatformFontPathChars(JNIEnv * env,jboolean noType1,jboolean isX11)507 static char *getPlatformFontPathChars(JNIEnv *env, jboolean noType1, jboolean isX11) {
508
509 char **fcdirs = NULL, **x11dirs = NULL, **knowndirs = NULL, *path = NULL;
510
511 /* As of 1.5 we try to use fontconfig on both Solaris and Linux.
512 * If its not available NULL is returned.
513 */
514 fcdirs = getFontConfigLocations();
515
516 #if defined(__linux__)
517 knowndirs = fullLinuxFontPath;
518 #elif defined(__solaris__)
519 knowndirs = fullSolarisFontPath;
520 #elif defined(_AIX)
521 knowndirs = fullAixFontPath;
522 #endif
523 /* REMIND: this code requires to be executed when the GraphicsEnvironment
524 * is already initialised. That is always true, but if it were not so,
525 * this code could throw an exception and the fontpath would fail to
526 * be initialised.
527 */
528 #ifndef HEADLESS
529 if (isX11) { // The following only works in an x11 environment.
530 #if defined(__linux__)
531 /* There's no headless build on linux ... */
532 if (!AWTIsHeadless()) { /* .. so need to call a function to check */
533 #endif
534 /* Using the X11 font path to locate font files is now a fallback
535 * useful only if fontconfig failed, or is incomplete. So we could
536 * remove this code completely and the consequences should be rare
537 * and non-fatal. If this happens, then the calling Java code can
538 * be modified to no longer require that the AWT lock (the X11GE)
539 * be initialised prior to calling this code.
540 */
541 AWT_LOCK();
542 if (isDisplayLocal(env)) {
543 x11dirs = getX11FontPath();
544 }
545 AWT_UNLOCK();
546 #if defined(__linux__)
547 }
548 #endif
549 }
550 #endif /* !HEADLESS */
551 path = mergePaths(fcdirs, x11dirs, knowndirs, noType1);
552 if (fcdirs != NULL) {
553 char **p = fcdirs;
554 while (*p != NULL) free(*p++);
555 free(fcdirs);
556 }
557
558 if (x11dirs != NULL) {
559 char **p = x11dirs;
560 while (*p != NULL) free(*p++);
561 free(x11dirs);
562 }
563
564 return path;
565 }
566
Java_sun_awt_FcFontManager_getFontPathNative(JNIEnv * env,jobject thiz,jboolean noType1,jboolean isX11)567 JNIEXPORT jstring JNICALL Java_sun_awt_FcFontManager_getFontPathNative
568 (JNIEnv *env, jobject thiz, jboolean noType1, jboolean isX11) {
569 jstring ret;
570 static char *ptr = NULL; /* retain result across calls */
571
572 if (ptr == NULL) {
573 ptr = getPlatformFontPathChars(env, noType1, isX11);
574 }
575 ret = (*env)->NewStringUTF(env, ptr);
576 return ret;
577 }
578
579 #include <dlfcn.h>
580
581 #include <fontconfig/fontconfig.h>
582
583
openFontConfig()584 static void* openFontConfig() {
585
586 char *homeEnv;
587 static char *homeEnvStr = "HOME="; /* must be static */
588 void* libfontconfig = NULL;
589 #ifdef __solaris__
590 #define SYSINFOBUFSZ 8
591 char sysinfobuf[SYSINFOBUFSZ];
592 #endif
593
594 /* Private workaround to not use fontconfig library.
595 * May be useful during testing/debugging
596 */
597 char *useFC = getenv("USE_J2D_FONTCONFIG");
598 if (useFC != NULL && !strcmp(useFC, "no")) {
599 return NULL;
600 }
601
602 #ifdef __solaris__
603 /* fontconfig is likely not properly configured on S8/S9 - skip it,
604 * although allow user to override this behaviour with an env. variable
605 * ie if USE_J2D_FONTCONFIG=yes then we skip this test.
606 * NB "4" is the length of a string which matches our patterns.
607 */
608 if (useFC == NULL || strcmp(useFC, "yes")) {
609 if (sysinfo(SI_RELEASE, sysinfobuf, SYSINFOBUFSZ) == 4) {
610 if ((!strcmp(sysinfobuf, "5.8") || !strcmp(sysinfobuf, "5.9"))) {
611 return NULL;
612 }
613 }
614 }
615 #endif
616
617 #if defined(_AIX)
618 /* On AIX, fontconfig is not a standard package supported by IBM.
619 * instead it has to be installed from the "AIX Toolbox for Linux Applications"
620 * site http://www-03.ibm.com/systems/power/software/aix/linux/toolbox/alpha.html
621 * and will be installed under /opt/freeware/lib/libfontconfig.a.
622 * Notice that the archive contains the real 32- and 64-bit shared libraries.
623 * We first try to load 'libfontconfig.so' from the default library path in the
624 * case the user has installed a private version of the library and if that
625 * doesn't succeed, we try the version from /opt/freeware/lib/libfontconfig.a
626 */
627 libfontconfig = dlopen("libfontconfig.so", RTLD_LOCAL|RTLD_LAZY);
628 if (libfontconfig == NULL) {
629 libfontconfig = dlopen("/opt/freeware/lib/libfontconfig.a(libfontconfig.so.1)", RTLD_MEMBER|RTLD_LOCAL|RTLD_LAZY);
630 if (libfontconfig == NULL) {
631 return NULL;
632 }
633 }
634 #else
635 /* 64 bit sparc should pick up the right version from the lib path.
636 * New features may be added to libfontconfig, this is expected to
637 * be compatible with old features, but we may need to start
638 * distinguishing the library version, to know whether to expect
639 * certain symbols - and functionality - to be available.
640 * Also add explicit search for .so.1 in case .so symlink doesn't exist.
641 */
642 libfontconfig = dlopen(FONTCONFIG_DLL_VERSIONED, RTLD_LOCAL|RTLD_LAZY);
643 if (libfontconfig == NULL) {
644 libfontconfig = dlopen(FONTCONFIG_DLL, RTLD_LOCAL|RTLD_LAZY);
645 if (libfontconfig == NULL) {
646 return NULL;
647 }
648 }
649 #endif
650
651 /* Version 1.0 of libfontconfig crashes if HOME isn't defined in
652 * the environment. This should generally never happen, but we can't
653 * control it, and can't control the version of fontconfig, so iff
654 * its not defined we set it to an empty value which is sufficient
655 * to prevent a crash. I considered unsetting it before exit, but
656 * it doesn't appear to work on Solaris, so I will leave it set.
657 */
658 homeEnv = getenv("HOME");
659 if (homeEnv == NULL) {
660 putenv(homeEnvStr);
661 }
662
663 return libfontconfig;
664 }
665
666 typedef void* (FcFiniFuncType)();
667
closeFontConfig(void * libfontconfig,jboolean fcFini)668 static void closeFontConfig(void* libfontconfig, jboolean fcFini) {
669
670 /* NB FcFini is not in (eg) the Solaris 10 version of fontconfig. Its not
671 * clear if this means we are really leaking resources in those cases
672 * but it seems we should call this function when its available.
673 * But since the Swing GTK code may be still accessing the lib, its probably
674 * safest for now to just let this "leak" rather than potentially
675 * concurrently free global data still in use by other code.
676 */
677 #if 0
678 if (fcFini) { /* release resources */
679 FcFiniFuncType FcFini = (FcFiniFuncType)dlsym(libfontconfig, "FcFini");
680
681 if (FcFini != NULL) {
682 (*FcFini)();
683 }
684 }
685 #endif
686 dlclose(libfontconfig);
687 }
688
689 typedef FcConfig* (*FcInitLoadConfigFuncType)();
690 typedef FcPattern* (*FcPatternBuildFuncType)(FcPattern *orig, ...);
691 typedef FcObjectSet* (*FcObjectSetFuncType)(const char *first, ...);
692 typedef FcFontSet* (*FcFontListFuncType)(FcConfig *config,
693 FcPattern *p,
694 FcObjectSet *os);
695 typedef FcResult (*FcPatternGetBoolFuncType)(const FcPattern *p,
696 const char *object,
697 int n,
698 FcBool *b);
699 typedef FcResult (*FcPatternGetIntegerFuncType)(const FcPattern *p,
700 const char *object,
701 int n,
702 int *i);
703 typedef FcResult (*FcPatternGetStringFuncType)(const FcPattern *p,
704 const char *object,
705 int n,
706 FcChar8 ** s);
707 typedef FcChar8* (*FcStrDirnameFuncType)(const FcChar8 *file);
708 typedef void (*FcPatternDestroyFuncType)(FcPattern *p);
709 typedef void (*FcFontSetDestroyFuncType)(FcFontSet *s);
710 typedef FcPattern* (*FcNameParseFuncType)(const FcChar8 *name);
711 typedef FcBool (*FcPatternAddStringFuncType)(FcPattern *p,
712 const char *object,
713 const FcChar8 *s);
714 typedef void (*FcDefaultSubstituteFuncType)(FcPattern *p);
715 typedef FcBool (*FcConfigSubstituteFuncType)(FcConfig *config,
716 FcPattern *p,
717 FcMatchKind kind);
718 typedef FcPattern* (*FcFontMatchFuncType)(FcConfig *config,
719 FcPattern *p,
720 FcResult *result);
721 typedef FcFontSet* (*FcFontSetCreateFuncType)();
722 typedef FcBool (*FcFontSetAddFuncType)(FcFontSet *s, FcPattern *font);
723
724 typedef FcResult (*FcPatternGetCharSetFuncType)(FcPattern *p,
725 const char *object,
726 int n,
727 FcCharSet **c);
728 typedef FcFontSet* (*FcFontSortFuncType)(FcConfig *config,
729 FcPattern *p,
730 FcBool trim,
731 FcCharSet **csp,
732 FcResult *result);
733 typedef FcCharSet* (*FcCharSetUnionFuncType)(const FcCharSet *a,
734 const FcCharSet *b);
735 typedef FcChar32 (*FcCharSetSubtractCountFuncType)(const FcCharSet *a,
736 const FcCharSet *b);
737
738 typedef int (*FcGetVersionFuncType)();
739
740 typedef FcStrList* (*FcConfigGetCacheDirsFuncType)(FcConfig *config);
741 typedef FcChar8* (*FcStrListNextFuncType)(FcStrList *list);
742 typedef FcChar8* (*FcStrListDoneFuncType)(FcStrList *list);
743
getFontConfigLocations()744 static char **getFontConfigLocations() {
745
746 char **fontdirs;
747 int numdirs = 0;
748 FcInitLoadConfigFuncType FcInitLoadConfig;
749 FcPatternBuildFuncType FcPatternBuild;
750 FcObjectSetFuncType FcObjectSetBuild;
751 FcFontListFuncType FcFontList;
752 FcPatternGetStringFuncType FcPatternGetString;
753 FcStrDirnameFuncType FcStrDirname;
754 FcPatternDestroyFuncType FcPatternDestroy;
755 FcFontSetDestroyFuncType FcFontSetDestroy;
756
757 FcConfig *fontconfig;
758 FcPattern *pattern;
759 FcObjectSet *objset;
760 FcFontSet *fontSet;
761 FcStrList *strList;
762 FcChar8 *str;
763 int i, f, found, len=0;
764 char **fontPath;
765
766 void* libfontconfig = openFontConfig();
767
768 if (libfontconfig == NULL) {
769 return NULL;
770 }
771
772 FcPatternBuild =
773 (FcPatternBuildFuncType)dlsym(libfontconfig, "FcPatternBuild");
774 FcObjectSetBuild =
775 (FcObjectSetFuncType)dlsym(libfontconfig, "FcObjectSetBuild");
776 FcFontList =
777 (FcFontListFuncType)dlsym(libfontconfig, "FcFontList");
778 FcPatternGetString =
779 (FcPatternGetStringFuncType)dlsym(libfontconfig, "FcPatternGetString");
780 FcStrDirname =
781 (FcStrDirnameFuncType)dlsym(libfontconfig, "FcStrDirname");
782 FcPatternDestroy =
783 (FcPatternDestroyFuncType)dlsym(libfontconfig, "FcPatternDestroy");
784 FcFontSetDestroy =
785 (FcFontSetDestroyFuncType)dlsym(libfontconfig, "FcFontSetDestroy");
786
787 if (FcPatternBuild == NULL ||
788 FcObjectSetBuild == NULL ||
789 FcPatternGetString == NULL ||
790 FcFontList == NULL ||
791 FcStrDirname == NULL ||
792 FcPatternDestroy == NULL ||
793 FcFontSetDestroy == NULL) { /* problem with the library: return. */
794 closeFontConfig(libfontconfig, JNI_FALSE);
795 return NULL;
796 }
797
798 /* Make calls into the fontconfig library to build a search for
799 * outline fonts, and to get the set of full file paths from the matches.
800 * This set is returned from the call to FcFontList(..)
801 * We allocate an array of char* pointers sufficient to hold all
802 * the matches + 1 extra which ensures there will be a NULL after all
803 * valid entries.
804 * We call FcStrDirname strip the file name from the path, and
805 * check if we have yet seen this directory. If not we add a pointer to
806 * it into our array of char*. Note that FcStrDirname returns newly
807 * allocated storage so we can use this in the return char** value.
808 * Finally we clean up, freeing allocated resources, and return the
809 * array of unique directories.
810 */
811 pattern = (*FcPatternBuild)(NULL, FC_OUTLINE, FcTypeBool, FcTrue, NULL);
812 objset = (*FcObjectSetBuild)(FC_FILE, NULL);
813 fontSet = (*FcFontList)(NULL, pattern, objset);
814 if (fontSet == NULL) {
815 /* FcFontList() may return NULL if fonts are not installed. */
816 fontdirs = NULL;
817 } else {
818 fontdirs = (char**)calloc(fontSet->nfont+1, sizeof(char*));
819 for (f=0; f < fontSet->nfont; f++) {
820 FcChar8 *file;
821 FcChar8 *dir;
822 if ((*FcPatternGetString)(fontSet->fonts[f], FC_FILE, 0, &file) ==
823 FcResultMatch) {
824 dir = (*FcStrDirname)(file);
825 found = 0;
826 for (i=0;i<numdirs; i++) {
827 if (strcmp(fontdirs[i], (char*)dir) == 0) {
828 found = 1;
829 break;
830 }
831 }
832 if (!found) {
833 fontdirs[numdirs++] = (char*)dir;
834 } else {
835 free((char*)dir);
836 }
837 }
838 }
839 /* Free fontset if one was returned */
840 (*FcFontSetDestroy)(fontSet);
841 }
842
843 /* Free memory and close the ".so" */
844 (*FcPatternDestroy)(pattern);
845 closeFontConfig(libfontconfig, JNI_TRUE);
846 return fontdirs;
847 }
848
849 /* These are copied from sun.awt.SunHints.
850 * Consider initialising them as ints using JNI for more robustness.
851 */
852 #define TEXT_AA_OFF 1
853 #define TEXT_AA_ON 2
854 #define TEXT_AA_LCD_HRGB 4
855 #define TEXT_AA_LCD_HBGR 5
856 #define TEXT_AA_LCD_VRGB 6
857 #define TEXT_AA_LCD_VBGR 7
858
859 JNIEXPORT jint JNICALL
Java_sun_font_FontConfigManager_getFontConfigAASettings(JNIEnv * env,jclass obj,jstring localeStr,jstring fcNameStr)860 Java_sun_font_FontConfigManager_getFontConfigAASettings
861 (JNIEnv *env, jclass obj, jstring localeStr, jstring fcNameStr) {
862
863 FcNameParseFuncType FcNameParse;
864 FcPatternAddStringFuncType FcPatternAddString;
865 FcConfigSubstituteFuncType FcConfigSubstitute;
866 FcDefaultSubstituteFuncType FcDefaultSubstitute;
867 FcFontMatchFuncType FcFontMatch;
868 FcPatternGetBoolFuncType FcPatternGetBool;
869 FcPatternGetIntegerFuncType FcPatternGetInteger;
870 FcPatternDestroyFuncType FcPatternDestroy;
871
872 FcPattern *pattern, *matchPattern;
873 FcResult result;
874 FcBool antialias = FcFalse;
875 int rgba = 0;
876 const char *locale=NULL, *fcName=NULL;
877 void* libfontconfig;
878
879 if (fcNameStr == NULL || localeStr == NULL) {
880 return -1;
881 }
882
883 fcName = (*env)->GetStringUTFChars(env, fcNameStr, 0);
884 if (fcName == NULL) {
885 return -1;
886 }
887 locale = (*env)->GetStringUTFChars(env, localeStr, 0);
888
889 if ((libfontconfig = openFontConfig()) == NULL) {
890 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName);
891 if (locale) {
892 (*env)->ReleaseStringUTFChars (env, localeStr,(const char*)locale);
893 }
894 return -1;
895 }
896
897 FcNameParse = (FcNameParseFuncType)dlsym(libfontconfig, "FcNameParse");
898 FcPatternAddString =
899 (FcPatternAddStringFuncType)dlsym(libfontconfig, "FcPatternAddString");
900 FcConfigSubstitute =
901 (FcConfigSubstituteFuncType)dlsym(libfontconfig, "FcConfigSubstitute");
902 FcDefaultSubstitute = (FcDefaultSubstituteFuncType)
903 dlsym(libfontconfig, "FcDefaultSubstitute");
904 FcFontMatch = (FcFontMatchFuncType)dlsym(libfontconfig, "FcFontMatch");
905 FcPatternGetBool = (FcPatternGetBoolFuncType)
906 dlsym(libfontconfig, "FcPatternGetBool");
907 FcPatternGetInteger = (FcPatternGetIntegerFuncType)
908 dlsym(libfontconfig, "FcPatternGetInteger");
909 FcPatternDestroy =
910 (FcPatternDestroyFuncType)dlsym(libfontconfig, "FcPatternDestroy");
911
912 if (FcNameParse == NULL ||
913 FcPatternAddString == NULL ||
914 FcConfigSubstitute == NULL ||
915 FcDefaultSubstitute == NULL ||
916 FcFontMatch == NULL ||
917 FcPatternGetBool == NULL ||
918 FcPatternGetInteger == NULL ||
919 FcPatternDestroy == NULL) { /* problem with the library: return. */
920
921 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName);
922 if (locale) {
923 (*env)->ReleaseStringUTFChars (env, localeStr,(const char*)locale);
924 }
925 closeFontConfig(libfontconfig, JNI_FALSE);
926 return -1;
927 }
928
929
930 pattern = (*FcNameParse)((FcChar8 *)fcName);
931 if (locale != NULL) {
932 (*FcPatternAddString)(pattern, FC_LANG, (unsigned char*)locale);
933 }
934 (*FcConfigSubstitute)(NULL, pattern, FcMatchPattern);
935 (*FcDefaultSubstitute)(pattern);
936 matchPattern = (*FcFontMatch)(NULL, pattern, &result);
937 /* Perhaps should call FcFontRenderPrepare() here as some pattern
938 * elements might change as a result of that call, but I'm not seeing
939 * any difference in testing.
940 */
941 if (matchPattern) {
942 (*FcPatternGetBool)(matchPattern, FC_ANTIALIAS, 0, &antialias);
943 (*FcPatternGetInteger)(matchPattern, FC_RGBA, 0, &rgba);
944 (*FcPatternDestroy)(matchPattern);
945 }
946 (*FcPatternDestroy)(pattern);
947
948 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName);
949 if (locale) {
950 (*env)->ReleaseStringUTFChars (env, localeStr, (const char*)locale);
951 }
952 closeFontConfig(libfontconfig, JNI_TRUE);
953
954 if (antialias == FcFalse) {
955 return TEXT_AA_OFF;
956 } else if (rgba <= FC_RGBA_UNKNOWN || rgba >= FC_RGBA_NONE) {
957 return TEXT_AA_ON;
958 } else {
959 switch (rgba) {
960 case FC_RGBA_RGB : return TEXT_AA_LCD_HRGB;
961 case FC_RGBA_BGR : return TEXT_AA_LCD_HBGR;
962 case FC_RGBA_VRGB : return TEXT_AA_LCD_VRGB;
963 case FC_RGBA_VBGR : return TEXT_AA_LCD_VBGR;
964 default : return TEXT_AA_LCD_HRGB; // should not get here.
965 }
966 }
967 }
968
969 JNIEXPORT jint JNICALL
Java_sun_font_FontConfigManager_getFontConfigVersion(JNIEnv * env,jclass obj)970 Java_sun_font_FontConfigManager_getFontConfigVersion
971 (JNIEnv *env, jclass obj) {
972
973 void* libfontconfig;
974 FcGetVersionFuncType FcGetVersion;
975 int version = 0;
976
977 if ((libfontconfig = openFontConfig()) == NULL) {
978 return 0;
979 }
980
981 FcGetVersion = (FcGetVersionFuncType)dlsym(libfontconfig, "FcGetVersion");
982
983 if (FcGetVersion == NULL) {
984 closeFontConfig(libfontconfig, JNI_FALSE);
985 return 0;
986 }
987 version = (*FcGetVersion)();
988 closeFontConfig(libfontconfig, JNI_FALSE);
989
990 return version;
991 }
992
993
994 JNIEXPORT void JNICALL
Java_sun_font_FontConfigManager_getFontConfig(JNIEnv * env,jclass obj,jstring localeStr,jobject fcInfoObj,jobjectArray fcCompFontArray,jboolean includeFallbacks)995 Java_sun_font_FontConfigManager_getFontConfig
996 (JNIEnv *env, jclass obj, jstring localeStr, jobject fcInfoObj,
997 jobjectArray fcCompFontArray, jboolean includeFallbacks) {
998
999 FcNameParseFuncType FcNameParse;
1000 FcPatternAddStringFuncType FcPatternAddString;
1001 FcConfigSubstituteFuncType FcConfigSubstitute;
1002 FcDefaultSubstituteFuncType FcDefaultSubstitute;
1003 FcFontMatchFuncType FcFontMatch;
1004 FcPatternGetStringFuncType FcPatternGetString;
1005 FcPatternDestroyFuncType FcPatternDestroy;
1006 FcPatternGetCharSetFuncType FcPatternGetCharSet;
1007 FcFontSortFuncType FcFontSort;
1008 FcFontSetDestroyFuncType FcFontSetDestroy;
1009 FcCharSetUnionFuncType FcCharSetUnion;
1010 FcCharSetSubtractCountFuncType FcCharSetSubtractCount;
1011 FcGetVersionFuncType FcGetVersion;
1012 FcConfigGetCacheDirsFuncType FcConfigGetCacheDirs;
1013 FcStrListNextFuncType FcStrListNext;
1014 FcStrListDoneFuncType FcStrListDone;
1015
1016 int i, arrlen;
1017 jobject fcCompFontObj;
1018 jstring fcNameStr, jstr;
1019 const char *locale, *fcName;
1020 FcPattern *pattern;
1021 FcResult result;
1022 void* libfontconfig;
1023 jfieldID fcNameID, fcFirstFontID, fcAllFontsID, fcVersionID, fcCacheDirsID;
1024 jfieldID familyNameID, styleNameID, fullNameID, fontFileID;
1025 jmethodID fcFontCons;
1026 char* debugMinGlyphsStr = getenv("J2D_DEBUG_MIN_GLYPHS");
1027 jclass fcInfoClass;
1028 jclass fcCompFontClass;
1029 jclass fcFontClass;
1030
1031 CHECK_NULL(fcInfoObj);
1032 CHECK_NULL(fcCompFontArray);
1033
1034 fcInfoClass =
1035 (*env)->FindClass(env, "sun/font/FontConfigManager$FontConfigInfo");
1036 CHECK_NULL(fcInfoClass);
1037 fcCompFontClass =
1038 (*env)->FindClass(env, "sun/font/FontConfigManager$FcCompFont");
1039 CHECK_NULL(fcCompFontClass);
1040 fcFontClass =
1041 (*env)->FindClass(env, "sun/font/FontConfigManager$FontConfigFont");
1042 CHECK_NULL(fcFontClass);
1043
1044
1045 CHECK_NULL(fcVersionID = (*env)->GetFieldID(env, fcInfoClass, "fcVersion", "I"));
1046 CHECK_NULL(fcCacheDirsID = (*env)->GetFieldID(env, fcInfoClass, "cacheDirs",
1047 "[Ljava/lang/String;"));
1048 CHECK_NULL(fcNameID = (*env)->GetFieldID(env, fcCompFontClass,
1049 "fcName", "Ljava/lang/String;"));
1050 CHECK_NULL(fcFirstFontID = (*env)->GetFieldID(env, fcCompFontClass, "firstFont",
1051 "Lsun/font/FontConfigManager$FontConfigFont;"));
1052 CHECK_NULL(fcAllFontsID = (*env)->GetFieldID(env, fcCompFontClass, "allFonts",
1053 "[Lsun/font/FontConfigManager$FontConfigFont;"));
1054 CHECK_NULL(fcFontCons = (*env)->GetMethodID(env, fcFontClass, "<init>", "()V"));
1055 CHECK_NULL(familyNameID = (*env)->GetFieldID(env, fcFontClass,
1056 "familyName", "Ljava/lang/String;"));
1057 CHECK_NULL(styleNameID = (*env)->GetFieldID(env, fcFontClass,
1058 "styleStr", "Ljava/lang/String;"));
1059 CHECK_NULL(fullNameID = (*env)->GetFieldID(env, fcFontClass,
1060 "fullName", "Ljava/lang/String;"));
1061 CHECK_NULL(fontFileID = (*env)->GetFieldID(env, fcFontClass,
1062 "fontFile", "Ljava/lang/String;"));
1063
1064 if ((libfontconfig = openFontConfig()) == NULL) {
1065 return;
1066 }
1067
1068 FcNameParse = (FcNameParseFuncType)dlsym(libfontconfig, "FcNameParse");
1069 FcPatternAddString =
1070 (FcPatternAddStringFuncType)dlsym(libfontconfig, "FcPatternAddString");
1071 FcConfigSubstitute =
1072 (FcConfigSubstituteFuncType)dlsym(libfontconfig, "FcConfigSubstitute");
1073 FcDefaultSubstitute = (FcDefaultSubstituteFuncType)
1074 dlsym(libfontconfig, "FcDefaultSubstitute");
1075 FcFontMatch = (FcFontMatchFuncType)dlsym(libfontconfig, "FcFontMatch");
1076 FcPatternGetString =
1077 (FcPatternGetStringFuncType)dlsym(libfontconfig, "FcPatternGetString");
1078 FcPatternDestroy =
1079 (FcPatternDestroyFuncType)dlsym(libfontconfig, "FcPatternDestroy");
1080 FcPatternGetCharSet =
1081 (FcPatternGetCharSetFuncType)dlsym(libfontconfig,
1082 "FcPatternGetCharSet");
1083 FcFontSort =
1084 (FcFontSortFuncType)dlsym(libfontconfig, "FcFontSort");
1085 FcFontSetDestroy =
1086 (FcFontSetDestroyFuncType)dlsym(libfontconfig, "FcFontSetDestroy");
1087 FcCharSetUnion =
1088 (FcCharSetUnionFuncType)dlsym(libfontconfig, "FcCharSetUnion");
1089 FcCharSetSubtractCount =
1090 (FcCharSetSubtractCountFuncType)dlsym(libfontconfig,
1091 "FcCharSetSubtractCount");
1092 FcGetVersion = (FcGetVersionFuncType)dlsym(libfontconfig, "FcGetVersion");
1093
1094 if (FcNameParse == NULL ||
1095 FcPatternAddString == NULL ||
1096 FcConfigSubstitute == NULL ||
1097 FcDefaultSubstitute == NULL ||
1098 FcFontMatch == NULL ||
1099 FcPatternGetString == NULL ||
1100 FcPatternDestroy == NULL ||
1101 FcPatternGetCharSet == NULL ||
1102 FcFontSetDestroy == NULL ||
1103 FcCharSetUnion == NULL ||
1104 FcGetVersion == NULL ||
1105 FcCharSetSubtractCount == NULL) {/* problem with the library: return.*/
1106 closeFontConfig(libfontconfig, JNI_FALSE);
1107 return;
1108 }
1109
1110 (*env)->SetIntField(env, fcInfoObj, fcVersionID, (*FcGetVersion)());
1111
1112 /* Optionally get the cache dir locations. This isn't
1113 * available until v 2.4.x, but this is OK since on those later versions
1114 * we can check the time stamps on the cache dirs to see if we
1115 * are out of date. There are a couple of assumptions here. First
1116 * that the time stamp on the directory changes when the contents are
1117 * updated. Secondly that the locations don't change. The latter is
1118 * most likely if a new version of fontconfig is installed, but we also
1119 * invalidate the cache if we detect that. Arguably even that is "rare",
1120 * and most likely is tied to an OS upgrade which gets a new file anyway.
1121 */
1122 FcConfigGetCacheDirs =
1123 (FcConfigGetCacheDirsFuncType)dlsym(libfontconfig,
1124 "FcConfigGetCacheDirs");
1125 FcStrListNext =
1126 (FcStrListNextFuncType)dlsym(libfontconfig, "FcStrListNext");
1127 FcStrListDone =
1128 (FcStrListDoneFuncType)dlsym(libfontconfig, "FcStrListDone");
1129 if (FcStrListNext != NULL && FcStrListDone != NULL &&
1130 FcConfigGetCacheDirs != NULL) {
1131
1132 FcStrList* cacheDirs;
1133 FcChar8* cacheDir;
1134 int cnt = 0;
1135 jobject cacheDirArray =
1136 (*env)->GetObjectField(env, fcInfoObj, fcCacheDirsID);
1137 int max = (*env)->GetArrayLength(env, cacheDirArray);
1138
1139 cacheDirs = (*FcConfigGetCacheDirs)(NULL);
1140 if (cacheDirs != NULL) {
1141 while ((cnt < max) && (cacheDir = (*FcStrListNext)(cacheDirs))) {
1142 jstr = (*env)->NewStringUTF(env, (const char*)cacheDir);
1143 JNU_CHECK_EXCEPTION(env);
1144
1145 (*env)->SetObjectArrayElement(env, cacheDirArray, cnt++, jstr);
1146 (*env)->DeleteLocalRef(env, jstr);
1147 }
1148 (*FcStrListDone)(cacheDirs);
1149 }
1150 }
1151
1152 locale = (*env)->GetStringUTFChars(env, localeStr, 0);
1153 if (locale == NULL) {
1154 (*env)->ExceptionClear(env);
1155 JNU_ThrowOutOfMemoryError(env, "Could not create locale");
1156 return;
1157 }
1158
1159 arrlen = (*env)->GetArrayLength(env, fcCompFontArray);
1160 for (i=0; i<arrlen; i++) {
1161 FcFontSet* fontset;
1162 int fn, j, fontCount, nfonts;
1163 unsigned int minGlyphs;
1164 FcChar8 **family, **styleStr, **fullname, **file;
1165 jarray fcFontArr = NULL;
1166 FcCharSet *unionCharset = NULL;
1167
1168 fcCompFontObj = (*env)->GetObjectArrayElement(env, fcCompFontArray, i);
1169 fcNameStr =
1170 (jstring)((*env)->GetObjectField(env, fcCompFontObj, fcNameID));
1171 fcName = (*env)->GetStringUTFChars(env, fcNameStr, 0);
1172 if (fcName == NULL) {
1173 (*env)->DeleteLocalRef(env, fcCompFontObj);
1174 (*env)->DeleteLocalRef(env, fcNameStr);
1175 continue;
1176 }
1177 pattern = (*FcNameParse)((FcChar8 *)fcName);
1178 (*env)->ReleaseStringUTFChars(env, fcNameStr, (const char*)fcName);
1179 (*env)->DeleteLocalRef(env, fcNameStr);
1180 if (pattern == NULL) {
1181 closeFontConfig(libfontconfig, JNI_FALSE);
1182 return;
1183 }
1184
1185 /* locale may not usually be necessary as fontconfig appears to apply
1186 * this anyway based on the user's environment. However we want
1187 * to use the value of the JDK startup locale so this should take
1188 * care of it.
1189 */
1190 if (locale != NULL) {
1191 (*FcPatternAddString)(pattern, FC_LANG, (unsigned char*)locale);
1192 }
1193 (*FcConfigSubstitute)(NULL, pattern, FcMatchPattern);
1194 (*FcDefaultSubstitute)(pattern);
1195 fontset = (*FcFontSort)(NULL, pattern, FcTrue, NULL, &result);
1196 if (fontset == NULL) {
1197 (*FcPatternDestroy)(pattern);
1198 closeFontConfig(libfontconfig, JNI_FALSE);
1199 return;
1200 }
1201
1202 /* fontconfig returned us "nfonts". If we are just getting the
1203 * first font, we set nfont to zero. Otherwise we use "nfonts".
1204 * Next create separate C arrrays of length nfonts for family file etc.
1205 * Inspect the returned fonts and the ones we like (adds enough glyphs)
1206 * are added to the arrays and we increment 'fontCount'.
1207 */
1208 nfonts = fontset->nfont;
1209 family = (FcChar8**)calloc(nfonts, sizeof(FcChar8*));
1210 styleStr = (FcChar8**)calloc(nfonts, sizeof(FcChar8*));
1211 fullname = (FcChar8**)calloc(nfonts, sizeof(FcChar8*));
1212 file = (FcChar8**)calloc(nfonts, sizeof(FcChar8*));
1213 if (family == NULL || styleStr == NULL ||
1214 fullname == NULL || file == NULL) {
1215 if (family != NULL) {
1216 free(family);
1217 }
1218 if (styleStr != NULL) {
1219 free(styleStr);
1220 }
1221 if (fullname != NULL) {
1222 free(fullname);
1223 }
1224 if (file != NULL) {
1225 free(file);
1226 }
1227 (*FcPatternDestroy)(pattern);
1228 (*FcFontSetDestroy)(fontset);
1229 closeFontConfig(libfontconfig, JNI_FALSE);
1230 return;
1231 }
1232 fontCount = 0;
1233 minGlyphs = 20;
1234 if (debugMinGlyphsStr != NULL) {
1235 int val = minGlyphs;
1236 sscanf(debugMinGlyphsStr, "%5d", &val);
1237 if (val >= 0 && val <= 65536) {
1238 minGlyphs = val;
1239 }
1240 }
1241
1242 for (j=0; j<nfonts; j++) {
1243 FcPattern *fontPattern = fontset->fonts[j];
1244 FcChar8 *fontformat;
1245 FcCharSet *charset = NULL;
1246
1247 fontformat = NULL;
1248 (*FcPatternGetString)(fontPattern, FC_FONTFORMAT, 0, &fontformat);
1249 /* We only want TrueType fonts but some Linuxes still depend
1250 * on Type 1 fonts for some Locale support, so we'll allow
1251 * them there.
1252 */
1253 if (fontformat != NULL
1254 && (strcmp((char*)fontformat, "TrueType") != 0)
1255 #if defined(__linux__) || defined(_AIX)
1256 && (strcmp((char*)fontformat, "Type 1") != 0)
1257 && (strcmp((char*)fontformat, "CFF") != 0)
1258 #endif
1259 ) {
1260 continue;
1261 }
1262 result = (*FcPatternGetCharSet)(fontPattern,
1263 FC_CHARSET, 0, &charset);
1264 if (result != FcResultMatch) {
1265 free(family);
1266 free(fullname);
1267 free(styleStr);
1268 free(file);
1269 (*FcPatternDestroy)(pattern);
1270 (*FcFontSetDestroy)(fontset);
1271 closeFontConfig(libfontconfig, JNI_FALSE);
1272 return;
1273 }
1274
1275 /* We don't want 20 or 30 fonts, so once we hit 10 fonts,
1276 * then require that they really be adding value. Too many
1277 * adversely affects load time for minimal value-add.
1278 * This is still likely far more than we've had in the past.
1279 */
1280 if (j==10) {
1281 minGlyphs = 50;
1282 }
1283 if (unionCharset == NULL) {
1284 unionCharset = charset;
1285 } else {
1286 if ((*FcCharSetSubtractCount)(charset, unionCharset)
1287 > minGlyphs) {
1288 unionCharset = (* FcCharSetUnion)(unionCharset, charset);
1289 } else {
1290 continue;
1291 }
1292 }
1293
1294 fontCount++; // found a font we will use.
1295 (*FcPatternGetString)(fontPattern, FC_FILE, 0, &file[j]);
1296 (*FcPatternGetString)(fontPattern, FC_FAMILY, 0, &family[j]);
1297 (*FcPatternGetString)(fontPattern, FC_STYLE, 0, &styleStr[j]);
1298 (*FcPatternGetString)(fontPattern, FC_FULLNAME, 0, &fullname[j]);
1299 if (!includeFallbacks) {
1300 break;
1301 }
1302 if (fontCount == 254) {
1303 break; // CompositeFont will only use up to 254 slots from here.
1304 }
1305 }
1306
1307 /* Once we get here 'fontCount' is the number of returned fonts
1308 * we actually want to use, so we create 'fcFontArr' of that length.
1309 * The non-null entries of "family[]" etc are those fonts.
1310 * Then loop again over all nfonts adding just those non-null ones
1311 * to 'fcFontArr'. If its null (we didn't want the font)
1312 * then we don't enter the main body.
1313 * So we should never get more than 'fontCount' entries.
1314 */
1315 if (includeFallbacks) {
1316 fcFontArr =
1317 (*env)->NewObjectArray(env, fontCount, fcFontClass, NULL);
1318 if (IS_NULL(fcFontArr)) {
1319 free(family);
1320 free(fullname);
1321 free(styleStr);
1322 free(file);
1323 (*FcPatternDestroy)(pattern);
1324 (*FcFontSetDestroy)(fontset);
1325 closeFontConfig(libfontconfig, JNI_FALSE);
1326 return;
1327 }
1328 (*env)->SetObjectField(env,fcCompFontObj, fcAllFontsID, fcFontArr);
1329 }
1330 fn=0;
1331
1332 for (j=0;j<nfonts;j++) {
1333 if (family[j] != NULL) {
1334 jobject fcFont =
1335 (*env)->NewObject(env, fcFontClass, fcFontCons);
1336 if (IS_NULL(fcFont)) break;
1337 jstr = (*env)->NewStringUTF(env, (const char*)family[j]);
1338 if (IS_NULL(jstr)) break;
1339 (*env)->SetObjectField(env, fcFont, familyNameID, jstr);
1340 (*env)->DeleteLocalRef(env, jstr);
1341 if (file[j] != NULL) {
1342 jstr = (*env)->NewStringUTF(env, (const char*)file[j]);
1343 if (IS_NULL(jstr)) break;
1344 (*env)->SetObjectField(env, fcFont, fontFileID, jstr);
1345 (*env)->DeleteLocalRef(env, jstr);
1346 }
1347 if (styleStr[j] != NULL) {
1348 jstr = (*env)->NewStringUTF(env, (const char*)styleStr[j]);
1349 if (IS_NULL(jstr)) break;
1350 (*env)->SetObjectField(env, fcFont, styleNameID, jstr);
1351 (*env)->DeleteLocalRef(env, jstr);
1352 }
1353 if (fullname[j] != NULL) {
1354 jstr = (*env)->NewStringUTF(env, (const char*)fullname[j]);
1355 if (IS_NULL(jstr)) break;
1356 (*env)->SetObjectField(env, fcFont, fullNameID, jstr);
1357 (*env)->DeleteLocalRef(env, jstr);
1358 }
1359 if (fn==0) {
1360 (*env)->SetObjectField(env, fcCompFontObj,
1361 fcFirstFontID, fcFont);
1362 }
1363 if (includeFallbacks) {
1364 (*env)->SetObjectArrayElement(env, fcFontArr, fn++,fcFont);
1365 } else {
1366 (*env)->DeleteLocalRef(env, fcFont);
1367 break;
1368 }
1369 (*env)->DeleteLocalRef(env, fcFont);
1370 }
1371 }
1372 if (includeFallbacks) {
1373 (*env)->DeleteLocalRef(env, fcFontArr);
1374 }
1375 (*env)->DeleteLocalRef(env, fcCompFontObj);
1376 (*FcFontSetDestroy)(fontset);
1377 (*FcPatternDestroy)(pattern);
1378 free(family);
1379 free(styleStr);
1380 free(fullname);
1381 free(file);
1382 }
1383
1384 /* release resources and close the ".so" */
1385
1386 if (locale) {
1387 (*env)->ReleaseStringUTFChars (env, localeStr, (const char*)locale);
1388 }
1389 closeFontConfig(libfontconfig, JNI_TRUE);
1390 }
1391