1 /*
2 * Copyright (c) 1998, 2014, 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__)
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 */
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 } else {
182 isLocal = True;
183 }
184 isLocalSet = True;
185 }
186
187 return isLocal;
188 }
189
190 static void AddFontsToX11FontPath ( fDirRecord *fDirP )
191 {
192 char *onePath;
193 int index, nPaths;
194 int origNumPaths, length;
195 int origIndex;
196 int totalDirCount;
197 char **origFontPath;
198 char **tempFontPath;
199 int doNotAppend;
200 int *appendDirList;
201 char **newFontPath;
202 int err, compareLength;
203 char fontDirPath[512];
204 int dirFile;
205
206 doNotAppend = 0;
207
208 if ( fDirP->num == 0 ) return;
209
210 appendDirList = SAFE_SIZE_ARRAY_ALLOC(malloc, fDirP->num, sizeof ( int ));
211 if ( appendDirList == NULL ) {
212 return; /* if it fails we cannot do much */
213 }
214
215 origFontPath = XGetFontPath ( awt_display, &nPaths );
216
217 totalDirCount = nPaths;
218 origNumPaths = nPaths;
219 tempFontPath = origFontPath;
220
221
222 for (index = 0; index < fDirP->num; index++ ) {
223
224 doNotAppend = 0;
225
226 tempFontPath = origFontPath;
227 for ( origIndex = 0; origIndex < nPaths; origIndex++ ) {
228
229 onePath = *tempFontPath;
230
231 compareLength = strlen ( onePath );
232 if ( onePath[compareLength -1] == '/' )
233 compareLength--;
234
235 /* there is a slash at the end of every solaris X11 font path name */
236 if ( strncmp ( onePath, fDirP->name[index], compareLength ) == 0 ) {
237 doNotAppend = 1;
238 break;
239 }
240 tempFontPath++;
241 }
242
243 appendDirList[index] = 0;
244 if ( doNotAppend == 0 ) {
245 strcpy ( fontDirPath, fDirP->name[index] );
246 strcat ( fontDirPath, "/fonts.dir" );
247 dirFile = open ( fontDirPath, O_RDONLY, 0 );
248 if ( dirFile == -1 ) {
249 doNotAppend = 1;
250 } else {
251 close ( dirFile );
252 totalDirCount++;
253 appendDirList[index] = 1;
254 }
255 }
256
257 }
258
259 /* if no changes are required do not bother to do a setfontpath */
260 if ( totalDirCount == nPaths ) {
261 free ( ( void *) appendDirList );
262 XFreeFontPath ( origFontPath );
263 return;
264 }
265
266
267 newFontPath = SAFE_SIZE_ARRAY_ALLOC(malloc, totalDirCount, sizeof ( char **) );
268 /* if it fails free things and get out */
269 if ( newFontPath == NULL ) {
270 free ( ( void *) appendDirList );
271 XFreeFontPath ( origFontPath );
272 return;
273 }
274
275 for ( origIndex = 0; origIndex < nPaths; origIndex++ ) {
276 onePath = origFontPath[origIndex];
277 newFontPath[origIndex] = onePath;
278 }
279
280 /* now add the other font paths */
281
282 for (index = 0; index < fDirP->num; index++ ) {
283
284 if ( appendDirList[index] == 1 ) {
285
286 /* printf ( "Appending %s\n", fDirP->name[index] ); */
287
288 onePath = SAFE_SIZE_ARRAY_ALLOC(malloc, strlen (fDirP->name[index]) + 2, sizeof( char ) );
289 if (onePath == NULL) {
290 free ( ( void *) appendDirList );
291 XFreeFontPath ( origFontPath );
292 return;
293 }
294 strcpy ( onePath, fDirP->name[index] );
295 strcat ( onePath, "/" );
296 newFontPath[nPaths++] = onePath;
297 /* printf ( "The path to be appended is %s\n", onePath ); */
298 }
299 }
300
301 /* printf ( "The dir count = %d\n", totalDirCount ); */
302 free ( ( void *) appendDirList );
303
304 XSetFontPath ( awt_display, newFontPath, totalDirCount );
305
306 for ( index = origNumPaths; index < totalDirCount; index++ ) {
307 free( newFontPath[index] );
308 }
309
310 free ( (void *) newFontPath );
311 XFreeFontPath ( origFontPath );
312 return;
313 }
314 #endif /* !HEADLESS */
315
316
317 #ifndef HEADLESS
318 static char **getX11FontPath ()
319 {
320 char **x11Path, **fontdirs;
321 int i, pos, slen, nPaths, numDirs;
322
323 x11Path = XGetFontPath (awt_display, &nPaths);
324
325 /* This isn't ever going to be perfect: the font path may contain
326 * much we aren't interested in, but the cost should be moderate
327 * Exclude all directories that contain the strings "Speedo","/F3/",
328 * "75dpi", "100dpi", "misc" or "bitmap", or don't begin with a "/",
329 * the last of which should exclude font servers.
330 * Also exclude the user specific ".gnome*" directories which
331 * aren't going to contain the system fonts we need.
332 * Hopefully we are left only with Type1 and TrueType directories.
333 * It doesn't matter much if there are extraneous directories, it'll just
334 * cost us a little wasted effort upstream.
335 */
336 fontdirs = (char**)calloc(nPaths+1, sizeof(char*));
337 pos = 0;
338 for (i=0; i < nPaths; i++) {
339 if (x11Path[i][0] != '/') {
340 continue;
341 }
342 if (strstr(x11Path[i], "/75dpi") != NULL) {
343 continue;
344 }
345 if (strstr(x11Path[i], "/100dpi") != NULL) {
346 continue;
347 }
348 if (strstr(x11Path[i], "/misc") != NULL) {
349 continue;
350 }
351 if (strstr(x11Path[i], "/Speedo") != NULL) {
352 continue;
353 }
354 if (strstr(x11Path[i], ".gnome") != NULL) {
355 continue;
356 }
357 #ifdef __solaris__
358 if (strstr(x11Path[i], "/F3/") != NULL) {
359 continue;
360 }
361 if (strstr(x11Path[i], "bitmap") != NULL) {
362 continue;
363 }
364 #endif
365 fontdirs[pos] = strdup(x11Path[i]);
366 slen = strlen(fontdirs[pos]);
367 if (slen > 0 && fontdirs[pos][slen-1] == '/') {
368 fontdirs[pos][slen-1] = '\0'; /* null out trailing "/" */
369 }
370 pos++;
371 }
372
373 XFreeFontPath(x11Path);
374 if (pos == 0) {
375 free(fontdirs);
376 fontdirs = NULL;
377 }
378 return fontdirs;
379 }
380
381
382 #endif /* !HEADLESS */
383
384 #if defined(__linux__)
385 /* from awt_LoadLibrary.c */
386 JNIEXPORT jboolean JNICALL AWTIsHeadless();
387 #endif
388
389 /* This eliminates duplicates, at a non-linear but acceptable cost
390 * since the lists are expected to be reasonably short, and then
391 * deletes references to non-existent directories, and returns
392 * a single path consisting of unique font directories.
393 */
394 static char* mergePaths(char **p1, char **p2, char **p3, jboolean noType1) {
395
396 int len1=0, len2=0, len3=0, totalLen=0, numDirs=0,
397 currLen, i, j, found, pathLen=0;
398 char **ptr, **fontdirs;
399 char *fontPath = NULL;
400
401 if (p1 != NULL) {
402 ptr = p1;
403 while (*ptr++ != NULL) len1++;
404 }
405 if (p2 != NULL) {
406 ptr = p2;
407
408 while (*ptr++ != NULL) len2++;
409 }
410 if (p3 != NULL) {
411 ptr = p3;
412 while (*ptr++ != NULL) len3++;
413 }
414 totalLen = len1+len2+len3;
415 fontdirs = (char**)calloc(totalLen, sizeof(char*));
416
417 for (i=0; i < len1; i++) {
418 if (noType1 && strstr(p1[i], "Type1") != NULL) {
419 continue;
420 }
421 fontdirs[numDirs++] = p1[i];
422 }
423
424 currLen = numDirs; /* only compare against previous path dirs */
425 for (i=0; i < len2; i++) {
426 if (noType1 && strstr(p2[i], "Type1") != NULL) {
427 continue;
428 }
429 found = 0;
430 for (j=0; j < currLen; j++) {
431 if (strcmp(fontdirs[j], p2[i]) == 0) {
432 found = 1;
433 break;
434 }
435 }
436 if (!found) {
437 fontdirs[numDirs++] = p2[i];
438 }
439 }
440
441 currLen = numDirs; /* only compare against previous path dirs */
442 for (i=0; i < len3; i++) {
443 if (noType1 && strstr(p3[i], "Type1") != NULL) {
444 continue;
445 }
446 found = 0;
447 for (j=0; j < currLen; j++) {
448 if (strcmp(fontdirs[j], p3[i]) == 0) {
449 found = 1;
450 break;
451 }
452 }
453 if (!found) {
454 fontdirs[numDirs++] = p3[i];
455 }
456 }
457
458 /* Now fontdirs contains unique dirs and numDirs records how many.
459 * What we don't know is if they all exist. On reflection I think
460 * this isn't an issue, so for now I will return all these locations,
461 * converted to one string */
462 for (i=0; i<numDirs; i++) {
463 pathLen += (strlen(fontdirs[i]) + 1);
464 }
465 if (pathLen > 0 && (fontPath = malloc(pathLen))) {
466 *fontPath = '\0';
467 for (i = 0; i<numDirs; i++) {
468 if (i != 0) {
469 strcat(fontPath, ":");
470 }
471 strcat(fontPath, fontdirs[i]);
472 }
473 }
474 free (fontdirs);
475
476 return fontPath;
477 }
478
479 /*
480 * The goal of this function is to find all "system" fonts which
481 * are needed by the JRE to display text in supported locales etc, and
482 * to support APIs which allow users to enumerate all system fonts and use
483 * them from their Java applications.
484 * The preferred mechanism is now using the new "fontconfig" library
485 * This exists on newer versions of Linux and Solaris (S10 and above)
486 * The library is dynamically located. The results are merged with
487 * a set of "known" locations and with the X11 font path, if running in
488 * a local X11 environment.
489 * The hardwired paths are built into the JDK binary so as new font locations
490 * are created on a host plaform for them to be located by the JRE they will
491 * need to be added ito the host's font configuration database, typically
492 * /etc/fonts/local.conf, and to ensure that directory contains a fonts.dir
493 * NB: Fontconfig also depends heavily for performance on the host O/S
494 * maintaining up to date caches.
495 * This is consistent with the requirements of the desktop environments
496 * on these OSes.
497 * This also frees us from X11 APIs as JRE is required to function in
498 * a "headless" mode where there is no Xserver.
499 */
500 static char *getPlatformFontPathChars(JNIEnv *env, jboolean noType1) {
501
502 char **fcdirs = NULL, **x11dirs = NULL, **knowndirs = NULL, *path = NULL;
503
504 /* As of 1.5 we try to use fontconfig on both Solaris and Linux.
505 * If its not available NULL is returned.
506 */
507 fcdirs = getFontConfigLocations();
508
509 #if defined(__linux__)
510 knowndirs = fullLinuxFontPath;
511 #elif defined(__solaris__)
512 knowndirs = fullSolarisFontPath;
513 #elif defined(_AIX)
514 knowndirs = fullAixFontPath;
515 #endif
516 /* REMIND: this code requires to be executed when the GraphicsEnvironment
517 * is already initialised. That is always true, but if it were not so,
518 * this code could throw an exception and the fontpath would fail to
519 * be initialised.
520 */
521 #ifndef HEADLESS
522 #if defined(__linux__)
523 /* There's no headless build on linux ... */
524 if (!AWTIsHeadless()) { /* .. so need to call a function to check */
525 #endif
526 /* Using the X11 font path to locate font files is now a fallback
527 * useful only if fontconfig failed, or is incomplete. So we could
528 * remove this code completely and the consequences should be rare
529 * and non-fatal. If this happens, then the calling Java code can
530 * be modified to no longer require that the AWT lock (the X11GE)
531 * be initialised prior to calling this code.
532 */
533 AWT_LOCK();
534 if (isDisplayLocal(env)) {
535 x11dirs = getX11FontPath();
536 }
537 AWT_UNLOCK();
538 #if defined(__linux__)
539 }
540 #endif
541 #endif /* !HEADLESS */
542 path = mergePaths(fcdirs, x11dirs, knowndirs, noType1);
543 if (fcdirs != NULL) {
544 char **p = fcdirs;
545 while (*p != NULL) free(*p++);
546 free(fcdirs);
547 }
548
549 if (x11dirs != NULL) {
550 char **p = x11dirs;
551 while (*p != NULL) free(*p++);
552 free(x11dirs);
553 }
554
555 return path;
556 }
557
558 JNIEXPORT jstring JNICALL Java_sun_awt_X11FontManager_getFontPathNative
559 (JNIEnv *env, jobject thiz, jboolean noType1) {
560 jstring ret;
561 static char *ptr = NULL; /* retain result across calls */
562
563 if (ptr == NULL) {
564 ptr = getPlatformFontPathChars(env, noType1);
565 }
566 ret = (*env)->NewStringUTF(env, ptr);
567 return ret;
568 }
569
570 #include <dlfcn.h>
571
572 #include "fontconfig.h"
573
574
575 static void* openFontConfig() {
576
577 char *homeEnv;
578 static char *homeEnvStr = "HOME="; /* must be static */
579 void* libfontconfig = NULL;
580 #ifdef __solaris__
581 #define SYSINFOBUFSZ 8
582 char sysinfobuf[SYSINFOBUFSZ];
583 #endif
584
585 /* Private workaround to not use fontconfig library.
586 * May be useful during testing/debugging
587 */
588 char *useFC = getenv("USE_J2D_FONTCONFIG");
589 if (useFC != NULL && !strcmp(useFC, "no")) {
590 return NULL;
591 }
592
593 #ifdef __solaris__
594 /* fontconfig is likely not properly configured on S8/S9 - skip it,
595 * although allow user to override this behaviour with an env. variable
596 * ie if USE_J2D_FONTCONFIG=yes then we skip this test.
597 * NB "4" is the length of a string which matches our patterns.
598 */
599 if (useFC == NULL || strcmp(useFC, "yes")) {
600 if (sysinfo(SI_RELEASE, sysinfobuf, SYSINFOBUFSZ) == 4) {
601 if ((!strcmp(sysinfobuf, "5.8") || !strcmp(sysinfobuf, "5.9"))) {
602 return NULL;
603 }
604 }
605 }
606 #endif
607
608 #if defined(_AIX)
609 /* On AIX, fontconfig is not a standard package supported by IBM.
610 * instead it has to be installed from the "AIX Toolbox for Linux Applications"
611 * site http://www-03.ibm.com/systems/power/software/aix/linux/toolbox/alpha.html
612 * and will be installed under /opt/freeware/lib/libfontconfig.a.
613 * Notice that the archive contains the real 32- and 64-bit shared libraries.
614 * We first try to load 'libfontconfig.so' from the default library path in the
615 * case the user has installed a private version of the library and if that
616 * doesn't succeed, we try the version from /opt/freeware/lib/libfontconfig.a
617 */
618 libfontconfig = dlopen("libfontconfig.so", RTLD_LOCAL|RTLD_LAZY);
619 if (libfontconfig == NULL) {
620 libfontconfig = dlopen("/opt/freeware/lib/libfontconfig.a(libfontconfig.so.1)", RTLD_MEMBER|RTLD_LOCAL|RTLD_LAZY);
621 if (libfontconfig == NULL) {
622 return NULL;
623 }
624 }
625 #else
626 /* 64 bit sparc should pick up the right version from the lib path.
627 * New features may be added to libfontconfig, this is expected to
628 * be compatible with old features, but we may need to start
629 * distinguishing the library version, to know whether to expect
630 * certain symbols - and functionality - to be available.
631 * Also add explicit search for .so.1 in case .so symlink doesn't exist.
632 */
633 libfontconfig = dlopen(FONTCONFIG_DLL_VERSIONED, RTLD_LOCAL|RTLD_LAZY);
634 if (libfontconfig == NULL) {
635 libfontconfig = dlopen(FONTCONFIG_DLL, RTLD_LOCAL|RTLD_LAZY);
636 if (libfontconfig == NULL) {
637 return NULL;
638 }
639 }
640 #endif
641
642 /* Version 1.0 of libfontconfig crashes if HOME isn't defined in
643 * the environment. This should generally never happen, but we can't
644 * control it, and can't control the version of fontconfig, so iff
645 * its not defined we set it to an empty value which is sufficient
646 * to prevent a crash. I considered unsetting it before exit, but
647 * it doesn't appear to work on Solaris, so I will leave it set.
648 */
649 homeEnv = getenv("HOME");
650 if (homeEnv == NULL) {
651 putenv(homeEnvStr);
652 }
653
654 return libfontconfig;
655 }
656
657 typedef void* (FcFiniFuncType)();
658
659 static void closeFontConfig(void* libfontconfig, jboolean fcFini) {
660
661 /* NB FcFini is not in (eg) the Solaris 10 version of fontconfig. Its not
662 * clear if this means we are really leaking resources in those cases
663 * but it seems we should call this function when its available.
664 * But since the Swing GTK code may be still accessing the lib, its probably
665 * safest for now to just let this "leak" rather than potentially
666 * concurrently free global data still in use by other code.
667 */
668 #if 0
669 if (fcFini) { /* release resources */
670 FcFiniFuncType FcFini = (FcFiniFuncType)dlsym(libfontconfig, "FcFini");
671
672 if (FcFini != NULL) {
673 (*FcFini)();
674 }
675 }
676 #endif
677 dlclose(libfontconfig);
678 }
679
680 typedef FcConfig* (*FcInitLoadConfigFuncType)();
681 typedef FcPattern* (*FcPatternBuildFuncType)(FcPattern *orig, ...);
682 typedef FcObjectSet* (*FcObjectSetFuncType)(const char *first, ...);
683 typedef FcFontSet* (*FcFontListFuncType)(FcConfig *config,
684 FcPattern *p,
685 FcObjectSet *os);
686 typedef FcResult (*FcPatternGetBoolFuncType)(const FcPattern *p,
687 const char *object,
688 int n,
689 FcBool *b);
690 typedef FcResult (*FcPatternGetIntegerFuncType)(const FcPattern *p,
691 const char *object,
692 int n,
693 int *i);
694 typedef FcResult (*FcPatternGetStringFuncType)(const FcPattern *p,
695 const char *object,
696 int n,
697 FcChar8 ** s);
698 typedef FcChar8* (*FcStrDirnameFuncType)(const FcChar8 *file);
699 typedef void (*FcPatternDestroyFuncType)(FcPattern *p);
700 typedef void (*FcFontSetDestroyFuncType)(FcFontSet *s);
701 typedef FcPattern* (*FcNameParseFuncType)(const FcChar8 *name);
702 typedef FcBool (*FcPatternAddStringFuncType)(FcPattern *p,
703 const char *object,
704 const FcChar8 *s);
705 typedef void (*FcDefaultSubstituteFuncType)(FcPattern *p);
706 typedef FcBool (*FcConfigSubstituteFuncType)(FcConfig *config,
707 FcPattern *p,
708 FcMatchKind kind);
709 typedef FcPattern* (*FcFontMatchFuncType)(FcConfig *config,
710 FcPattern *p,
711 FcResult *result);
712 typedef FcFontSet* (*FcFontSetCreateFuncType)();
713 typedef FcBool (*FcFontSetAddFuncType)(FcFontSet *s, FcPattern *font);
714
715 typedef FcResult (*FcPatternGetCharSetFuncType)(FcPattern *p,
716 const char *object,
717 int n,
718 FcCharSet **c);
719 typedef FcFontSet* (*FcFontSortFuncType)(FcConfig *config,
720 FcPattern *p,
721 FcBool trim,
722 FcCharSet **csp,
723 FcResult *result);
724 typedef FcCharSet* (*FcCharSetUnionFuncType)(const FcCharSet *a,
725 const FcCharSet *b);
726 typedef FcChar32 (*FcCharSetSubtractCountFuncType)(const FcCharSet *a,
727 const FcCharSet *b);
728
729 typedef int (*FcGetVersionFuncType)();
730
731 typedef FcStrList* (*FcConfigGetCacheDirsFuncType)(FcConfig *config);
732 typedef FcChar8* (*FcStrListNextFuncType)(FcStrList *list);
733 typedef FcChar8* (*FcStrListDoneFuncType)(FcStrList *list);
734
735 static char **getFontConfigLocations() {
736
737 char **fontdirs;
738 int numdirs = 0;
739 FcInitLoadConfigFuncType FcInitLoadConfig;
740 FcPatternBuildFuncType FcPatternBuild;
741 FcObjectSetFuncType FcObjectSetBuild;
742 FcFontListFuncType FcFontList;
743 FcPatternGetStringFuncType FcPatternGetString;
744 FcStrDirnameFuncType FcStrDirname;
745 FcPatternDestroyFuncType FcPatternDestroy;
746 FcFontSetDestroyFuncType FcFontSetDestroy;
747
748 FcConfig *fontconfig;
749 FcPattern *pattern;
750 FcObjectSet *objset;
751 FcFontSet *fontSet;
752 FcStrList *strList;
753 FcChar8 *str;
754 int i, f, found, len=0;
755 char **fontPath;
756
757 void* libfontconfig = openFontConfig();
758
759 if (libfontconfig == NULL) {
760 return NULL;
761 }
762
763 FcPatternBuild =
764 (FcPatternBuildFuncType)dlsym(libfontconfig, "FcPatternBuild");
765 FcObjectSetBuild =
766 (FcObjectSetFuncType)dlsym(libfontconfig, "FcObjectSetBuild");
767 FcFontList =
768 (FcFontListFuncType)dlsym(libfontconfig, "FcFontList");
769 FcPatternGetString =
770 (FcPatternGetStringFuncType)dlsym(libfontconfig, "FcPatternGetString");
771 FcStrDirname =
772 (FcStrDirnameFuncType)dlsym(libfontconfig, "FcStrDirname");
773 FcPatternDestroy =
774 (FcPatternDestroyFuncType)dlsym(libfontconfig, "FcPatternDestroy");
775 FcFontSetDestroy =
776 (FcFontSetDestroyFuncType)dlsym(libfontconfig, "FcFontSetDestroy");
777
778 if (FcPatternBuild == NULL ||
779 FcObjectSetBuild == NULL ||
780 FcPatternGetString == NULL ||
781 FcFontList == NULL ||
782 FcStrDirname == NULL ||
783 FcPatternDestroy == NULL ||
784 FcFontSetDestroy == NULL) { /* problem with the library: return. */
785 closeFontConfig(libfontconfig, JNI_FALSE);
786 return NULL;
787 }
788
789 /* Make calls into the fontconfig library to build a search for
790 * outline fonts, and to get the set of full file paths from the matches.
791 * This set is returned from the call to FcFontList(..)
792 * We allocate an array of char* pointers sufficient to hold all
793 * the matches + 1 extra which ensures there will be a NULL after all
794 * valid entries.
795 * We call FcStrDirname strip the file name from the path, and
796 * check if we have yet seen this directory. If not we add a pointer to
797 * it into our array of char*. Note that FcStrDirname returns newly
798 * allocated storage so we can use this in the return char** value.
799 * Finally we clean up, freeing allocated resources, and return the
800 * array of unique directories.
801 */
802 pattern = (*FcPatternBuild)(NULL, FC_OUTLINE, FcTypeBool, FcTrue, NULL);
803 objset = (*FcObjectSetBuild)(FC_FILE, NULL);
804 fontSet = (*FcFontList)(NULL, pattern, objset);
805 fontdirs = (char**)calloc(fontSet->nfont+1, sizeof(char*));
806 for (f=0; f < fontSet->nfont; f++) {
807 FcChar8 *file;
808 FcChar8 *dir;
809 if ((*FcPatternGetString)(fontSet->fonts[f], FC_FILE, 0, &file) ==
810 FcResultMatch) {
811 dir = (*FcStrDirname)(file);
812 found = 0;
813 for (i=0;i<numdirs; i++) {
814 if (strcmp(fontdirs[i], (char*)dir) == 0) {
815 found = 1;
816 break;
817 }
818 }
819 if (!found) {
820 fontdirs[numdirs++] = (char*)dir;
821 } else {
822 free((char*)dir);
823 }
824 }
825 }
826
827 /* Free memory and close the ".so" */
828 (*FcFontSetDestroy)(fontSet);
829 (*FcPatternDestroy)(pattern);
830 closeFontConfig(libfontconfig, JNI_TRUE);
831 return fontdirs;
832 }
833
834 /* These are copied from sun.awt.SunHints.
835 * Consider initialising them as ints using JNI for more robustness.
836 */
837 #define TEXT_AA_OFF 1
838 #define TEXT_AA_ON 2
839 #define TEXT_AA_LCD_HRGB 4
840 #define TEXT_AA_LCD_HBGR 5
841 #define TEXT_AA_LCD_VRGB 6
842 #define TEXT_AA_LCD_VBGR 7
843
844 JNIEXPORT jint JNICALL
845 Java_sun_font_FontConfigManager_getFontConfigAASettings
846 (JNIEnv *env, jclass obj, jstring localeStr, jstring fcNameStr) {
847
848 FcNameParseFuncType FcNameParse;
849 FcPatternAddStringFuncType FcPatternAddString;
850 FcConfigSubstituteFuncType FcConfigSubstitute;
851 FcDefaultSubstituteFuncType FcDefaultSubstitute;
852 FcFontMatchFuncType FcFontMatch;
853 FcPatternGetBoolFuncType FcPatternGetBool;
854 FcPatternGetIntegerFuncType FcPatternGetInteger;
855 FcPatternDestroyFuncType FcPatternDestroy;
856
857 FcPattern *pattern, *matchPattern;
858 FcResult result;
859 FcBool antialias = FcFalse;
860 int rgba = 0;
861 const char *locale=NULL, *fcName=NULL;
862 void* libfontconfig;
863
864 if (fcNameStr == NULL || localeStr == NULL) {
865 return -1;
866 }
867
868 fcName = (*env)->GetStringUTFChars(env, fcNameStr, 0);
869 if (fcName == NULL) {
870 return -1;
871 }
872 locale = (*env)->GetStringUTFChars(env, localeStr, 0);
873
874 if ((libfontconfig = openFontConfig()) == NULL) {
875 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName);
876 if (locale) {
877 (*env)->ReleaseStringUTFChars (env, localeStr,(const char*)locale);
878 }
879 return -1;
880 }
881
882 FcNameParse = (FcNameParseFuncType)dlsym(libfontconfig, "FcNameParse");
883 FcPatternAddString =
884 (FcPatternAddStringFuncType)dlsym(libfontconfig, "FcPatternAddString");
885 FcConfigSubstitute =
886 (FcConfigSubstituteFuncType)dlsym(libfontconfig, "FcConfigSubstitute");
887 FcDefaultSubstitute = (FcDefaultSubstituteFuncType)
888 dlsym(libfontconfig, "FcDefaultSubstitute");
889 FcFontMatch = (FcFontMatchFuncType)dlsym(libfontconfig, "FcFontMatch");
890 FcPatternGetBool = (FcPatternGetBoolFuncType)
891 dlsym(libfontconfig, "FcPatternGetBool");
892 FcPatternGetInteger = (FcPatternGetIntegerFuncType)
893 dlsym(libfontconfig, "FcPatternGetInteger");
894 FcPatternDestroy =
895 (FcPatternDestroyFuncType)dlsym(libfontconfig, "FcPatternDestroy");
896
897 if (FcNameParse == NULL ||
898 FcPatternAddString == NULL ||
899 FcConfigSubstitute == NULL ||
900 FcDefaultSubstitute == NULL ||
901 FcFontMatch == NULL ||
902 FcPatternGetBool == NULL ||
903 FcPatternGetInteger == NULL ||
904 FcPatternDestroy == NULL) { /* problem with the library: return. */
905
906 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName);
907 if (locale) {
908 (*env)->ReleaseStringUTFChars (env, localeStr,(const char*)locale);
909 }
910 closeFontConfig(libfontconfig, JNI_FALSE);
911 return -1;
912 }
913
914
915 pattern = (*FcNameParse)((FcChar8 *)fcName);
916 if (locale != NULL) {
917 (*FcPatternAddString)(pattern, FC_LANG, (unsigned char*)locale);
918 }
919 (*FcConfigSubstitute)(NULL, pattern, FcMatchPattern);
920 (*FcDefaultSubstitute)(pattern);
921 matchPattern = (*FcFontMatch)(NULL, pattern, &result);
922 /* Perhaps should call FcFontRenderPrepare() here as some pattern
923 * elements might change as a result of that call, but I'm not seeing
924 * any difference in testing.
925 */
926 if (matchPattern) {
927 (*FcPatternGetBool)(matchPattern, FC_ANTIALIAS, 0, &antialias);
928 (*FcPatternGetInteger)(matchPattern, FC_RGBA, 0, &rgba);
929 (*FcPatternDestroy)(matchPattern);
930 }
931 (*FcPatternDestroy)(pattern);
932
933 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName);
934 if (locale) {
935 (*env)->ReleaseStringUTFChars (env, localeStr, (const char*)locale);
936 }
937 closeFontConfig(libfontconfig, JNI_TRUE);
938
939 if (antialias == FcFalse) {
940 return TEXT_AA_OFF;
941 } else if (rgba <= FC_RGBA_UNKNOWN || rgba >= FC_RGBA_NONE) {
942 return TEXT_AA_ON;
943 } else {
944 switch (rgba) {
945 case FC_RGBA_RGB : return TEXT_AA_LCD_HRGB;
946 case FC_RGBA_BGR : return TEXT_AA_LCD_HBGR;
947 case FC_RGBA_VRGB : return TEXT_AA_LCD_VRGB;
948 case FC_RGBA_VBGR : return TEXT_AA_LCD_VBGR;
949 default : return TEXT_AA_LCD_HRGB; // should not get here.
950 }
951 }
952 }
953
954 JNIEXPORT jint JNICALL
955 Java_sun_font_FontConfigManager_getFontConfigVersion
956 (JNIEnv *env, jclass obj) {
957
958 void* libfontconfig;
959 FcGetVersionFuncType FcGetVersion;
960 int version = 0;
961
962 if ((libfontconfig = openFontConfig()) == NULL) {
963 return 0;
964 }
965
966 FcGetVersion = (FcGetVersionFuncType)dlsym(libfontconfig, "FcGetVersion");
967
968 if (FcGetVersion == NULL) {
969 closeFontConfig(libfontconfig, JNI_FALSE);
970 return 0;
971 }
972 version = (*FcGetVersion)();
973 closeFontConfig(libfontconfig, JNI_FALSE);
974
975 return version;
976 }
977
978
979 JNIEXPORT void JNICALL
980 Java_sun_font_FontConfigManager_getFontConfig
981 (JNIEnv *env, jclass obj, jstring localeStr, jobject fcInfoObj,
982 jobjectArray fcCompFontArray, jboolean includeFallbacks) {
983
984 FcNameParseFuncType FcNameParse;
985 FcPatternAddStringFuncType FcPatternAddString;
986 FcConfigSubstituteFuncType FcConfigSubstitute;
987 FcDefaultSubstituteFuncType FcDefaultSubstitute;
988 FcFontMatchFuncType FcFontMatch;
989 FcPatternGetStringFuncType FcPatternGetString;
990 FcPatternDestroyFuncType FcPatternDestroy;
991 FcPatternGetCharSetFuncType FcPatternGetCharSet;
992 FcFontSortFuncType FcFontSort;
993 FcFontSetDestroyFuncType FcFontSetDestroy;
994 FcCharSetUnionFuncType FcCharSetUnion;
995 FcCharSetSubtractCountFuncType FcCharSetSubtractCount;
996 FcGetVersionFuncType FcGetVersion;
997 FcConfigGetCacheDirsFuncType FcConfigGetCacheDirs;
998 FcStrListNextFuncType FcStrListNext;
999 FcStrListDoneFuncType FcStrListDone;
1000
1001 int i, arrlen;
1002 jobject fcCompFontObj;
1003 jstring fcNameStr, jstr;
1004 const char *locale, *fcName;
1005 FcPattern *pattern;
1006 FcResult result;
1007 void* libfontconfig;
1008 jfieldID fcNameID, fcFirstFontID, fcAllFontsID, fcVersionID, fcCacheDirsID;
1009 jfieldID familyNameID, styleNameID, fullNameID, fontFileID;
1010 jmethodID fcFontCons;
1011 char* debugMinGlyphsStr = getenv("J2D_DEBUG_MIN_GLYPHS");
1012
1013 CHECK_NULL(fcInfoObj);
1014 CHECK_NULL(fcCompFontArray);
1015
1016 jclass fcInfoClass =
1017 (*env)->FindClass(env, "sun/font/FontConfigManager$FontConfigInfo");
1018 CHECK_NULL(fcInfoClass);
1019 jclass fcCompFontClass =
1020 (*env)->FindClass(env, "sun/font/FontConfigManager$FcCompFont");
1021 CHECK_NULL(fcCompFontClass);
1022 jclass fcFontClass =
1023 (*env)->FindClass(env, "sun/font/FontConfigManager$FontConfigFont");
1024 CHECK_NULL(fcFontClass);
1025
1026
1027 CHECK_NULL(fcVersionID = (*env)->GetFieldID(env, fcInfoClass, "fcVersion", "I"));
1028 CHECK_NULL(fcCacheDirsID = (*env)->GetFieldID(env, fcInfoClass, "cacheDirs",
1029 "[Ljava/lang/String;"));
1030 CHECK_NULL(fcNameID = (*env)->GetFieldID(env, fcCompFontClass,
1031 "fcName", "Ljava/lang/String;"));
1032 CHECK_NULL(fcFirstFontID = (*env)->GetFieldID(env, fcCompFontClass, "firstFont",
1033 "Lsun/font/FontConfigManager$FontConfigFont;"));
1034 CHECK_NULL(fcAllFontsID = (*env)->GetFieldID(env, fcCompFontClass, "allFonts",
1035 "[Lsun/font/FontConfigManager$FontConfigFont;"));
1036 CHECK_NULL(fcFontCons = (*env)->GetMethodID(env, fcFontClass, "<init>", "()V"));
1037 CHECK_NULL(familyNameID = (*env)->GetFieldID(env, fcFontClass,
1038 "familyName", "Ljava/lang/String;"));
1039 CHECK_NULL(styleNameID = (*env)->GetFieldID(env, fcFontClass,
1040 "styleStr", "Ljava/lang/String;"));
1041 CHECK_NULL(fullNameID = (*env)->GetFieldID(env, fcFontClass,
1042 "fullName", "Ljava/lang/String;"));
1043 CHECK_NULL(fontFileID = (*env)->GetFieldID(env, fcFontClass,
1044 "fontFile", "Ljava/lang/String;"));
1045
1046 if ((libfontconfig = openFontConfig()) == NULL) {
1047 return;
1048 }
1049
1050 FcNameParse = (FcNameParseFuncType)dlsym(libfontconfig, "FcNameParse");
1051 FcPatternAddString =
1052 (FcPatternAddStringFuncType)dlsym(libfontconfig, "FcPatternAddString");
1053 FcConfigSubstitute =
1054 (FcConfigSubstituteFuncType)dlsym(libfontconfig, "FcConfigSubstitute");
1055 FcDefaultSubstitute = (FcDefaultSubstituteFuncType)
1056 dlsym(libfontconfig, "FcDefaultSubstitute");
1057 FcFontMatch = (FcFontMatchFuncType)dlsym(libfontconfig, "FcFontMatch");
1058 FcPatternGetString =
1059 (FcPatternGetStringFuncType)dlsym(libfontconfig, "FcPatternGetString");
1060 FcPatternDestroy =
1061 (FcPatternDestroyFuncType)dlsym(libfontconfig, "FcPatternDestroy");
1062 FcPatternGetCharSet =
1063 (FcPatternGetCharSetFuncType)dlsym(libfontconfig,
1064 "FcPatternGetCharSet");
1065 FcFontSort =
1066 (FcFontSortFuncType)dlsym(libfontconfig, "FcFontSort");
1067 FcFontSetDestroy =
1068 (FcFontSetDestroyFuncType)dlsym(libfontconfig, "FcFontSetDestroy");
1069 FcCharSetUnion =
1070 (FcCharSetUnionFuncType)dlsym(libfontconfig, "FcCharSetUnion");
1071 FcCharSetSubtractCount =
1072 (FcCharSetSubtractCountFuncType)dlsym(libfontconfig,
1073 "FcCharSetSubtractCount");
1074 FcGetVersion = (FcGetVersionFuncType)dlsym(libfontconfig, "FcGetVersion");
1075
1076 if (FcNameParse == NULL ||
1077 FcPatternAddString == NULL ||
1078 FcConfigSubstitute == NULL ||
1079 FcDefaultSubstitute == NULL ||
1080 FcFontMatch == NULL ||
1081 FcPatternGetString == NULL ||
1082 FcPatternDestroy == NULL ||
1083 FcPatternGetCharSet == NULL ||
1084 FcFontSetDestroy == NULL ||
1085 FcCharSetUnion == NULL ||
1086 FcGetVersion == NULL ||
1087 FcCharSetSubtractCount == NULL) {/* problem with the library: return.*/
1088 closeFontConfig(libfontconfig, JNI_FALSE);
1089 return;
1090 }
1091
1092 (*env)->SetIntField(env, fcInfoObj, fcVersionID, (*FcGetVersion)());
1093
1094 /* Optionally get the cache dir locations. This isn't
1095 * available until v 2.4.x, but this is OK since on those later versions
1096 * we can check the time stamps on the cache dirs to see if we
1097 * are out of date. There are a couple of assumptions here. First
1098 * that the time stamp on the directory changes when the contents are
1099 * updated. Secondly that the locations don't change. The latter is
1100 * most likely if a new version of fontconfig is installed, but we also
1101 * invalidate the cache if we detect that. Arguably even that is "rare",
1102 * and most likely is tied to an OS upgrade which gets a new file anyway.
1103 */
1104 FcConfigGetCacheDirs =
1105 (FcConfigGetCacheDirsFuncType)dlsym(libfontconfig,
1106 "FcConfigGetCacheDirs");
1107 FcStrListNext =
1108 (FcStrListNextFuncType)dlsym(libfontconfig, "FcStrListNext");
1109 FcStrListDone =
1110 (FcStrListDoneFuncType)dlsym(libfontconfig, "FcStrListDone");
1111 if (FcStrListNext != NULL && FcStrListDone != NULL &&
1112 FcConfigGetCacheDirs != NULL) {
1113
1114 FcStrList* cacheDirs;
1115 FcChar8* cacheDir;
1116 int cnt = 0;
1117 jobject cacheDirArray =
1118 (*env)->GetObjectField(env, fcInfoObj, fcCacheDirsID);
1119 int max = (*env)->GetArrayLength(env, cacheDirArray);
1120
1121 cacheDirs = (*FcConfigGetCacheDirs)(NULL);
1122 if (cacheDirs != NULL) {
1123 while ((cnt < max) && (cacheDir = (*FcStrListNext)(cacheDirs))) {
1124 jstr = (*env)->NewStringUTF(env, (const char*)cacheDir);
1125 JNU_CHECK_EXCEPTION(env);
1126
1127 (*env)->SetObjectArrayElement(env, cacheDirArray, cnt++, jstr);
1128 }
1129 (*FcStrListDone)(cacheDirs);
1130 }
1131 }
1132
1133 locale = (*env)->GetStringUTFChars(env, localeStr, 0);
1134 if (locale == NULL) {
1135 (*env)->ExceptionClear(env);
1136 JNU_ThrowOutOfMemoryError(env, "Could not create locale");
1137 return;
1138 }
1139
1140 arrlen = (*env)->GetArrayLength(env, fcCompFontArray);
1141 for (i=0; i<arrlen; i++) {
1142 FcFontSet* fontset;
1143 int fn, j, fontCount, nfonts;
1144 unsigned int minGlyphs;
1145 FcChar8 **family, **styleStr, **fullname, **file;
1146 jarray fcFontArr;
1147
1148 fcCompFontObj = (*env)->GetObjectArrayElement(env, fcCompFontArray, i);
1149 fcNameStr =
1150 (jstring)((*env)->GetObjectField(env, fcCompFontObj, fcNameID));
1151 fcName = (*env)->GetStringUTFChars(env, fcNameStr, 0);
1152 if (fcName == NULL) {
1153 continue;
1154 }
1155 pattern = (*FcNameParse)((FcChar8 *)fcName);
1156 if (pattern == NULL) {
1157 (*env)->ReleaseStringUTFChars(env, fcNameStr, (const char*)fcName);
1158 closeFontConfig(libfontconfig, JNI_FALSE);
1159 return;
1160 }
1161
1162 /* locale may not usually be necessary as fontconfig appears to apply
1163 * this anyway based on the user's environment. However we want
1164 * to use the value of the JDK startup locale so this should take
1165 * care of it.
1166 */
1167 if (locale != NULL) {
1168 (*FcPatternAddString)(pattern, FC_LANG, (unsigned char*)locale);
1169 }
1170 (*FcConfigSubstitute)(NULL, pattern, FcMatchPattern);
1171 (*FcDefaultSubstitute)(pattern);
1172 fontset = (*FcFontSort)(NULL, pattern, FcTrue, NULL, &result);
1173 if (fontset == NULL) {
1174 (*FcPatternDestroy)(pattern);
1175 (*env)->ReleaseStringUTFChars(env, fcNameStr, (const char*)fcName);
1176 closeFontConfig(libfontconfig, JNI_FALSE);
1177 return;
1178 }
1179
1180 /* fontconfig returned us "nfonts". If we are just getting the
1181 * first font, we set nfont to zero. Otherwise we use "nfonts".
1182 * Next create separate C arrrays of length nfonts for family file etc.
1183 * Inspect the returned fonts and the ones we like (adds enough glyphs)
1184 * are added to the arrays and we increment 'fontCount'.
1185 */
1186 nfonts = fontset->nfont;
1187 family = (FcChar8**)calloc(nfonts, sizeof(FcChar8*));
1188 styleStr = (FcChar8**)calloc(nfonts, sizeof(FcChar8*));
1189 fullname = (FcChar8**)calloc(nfonts, sizeof(FcChar8*));
1190 file = (FcChar8**)calloc(nfonts, sizeof(FcChar8*));
1191 if (family == NULL || styleStr == NULL ||
1192 fullname == NULL || file == NULL) {
1193 if (family != NULL) {
1194 free(family);
1195 }
1196 if (styleStr != NULL) {
1197 free(styleStr);
1198 }
1199 if (fullname != NULL) {
1200 free(fullname);
1201 }
1202 if (file != NULL) {
1203 free(file);
1204 }
1205 (*FcPatternDestroy)(pattern);
1206 (*FcFontSetDestroy)(fontset);
1207 (*env)->ReleaseStringUTFChars(env, fcNameStr, (const char*)fcName);
1208 closeFontConfig(libfontconfig, JNI_FALSE);
1209 return;
1210 }
1211 fontCount = 0;
1212 minGlyphs = 20;
1213 if (debugMinGlyphsStr != NULL) {
1214 int val = minGlyphs;
1215 sscanf(debugMinGlyphsStr, "%5d", &val);
1216 if (val >= 0 && val <= 65536) {
1217 minGlyphs = val;
1218 }
1219 }
1220 for (j=0; j<nfonts; j++) {
1221 FcPattern *fontPattern = fontset->fonts[j];
1222 FcChar8 *fontformat;
1223 FcCharSet *unionCharset = NULL, *charset;
1224
1225 fontformat = NULL;
1226 (*FcPatternGetString)(fontPattern, FC_FONTFORMAT, 0, &fontformat);
1227 /* We only want TrueType fonts but some Linuxes still depend
1228 * on Type 1 fonts for some Locale support, so we'll allow
1229 * them there.
1230 */
1231 if (fontformat != NULL
1232 && (strcmp((char*)fontformat, "TrueType") != 0)
1233 #if defined(__linux__) || defined(_AIX)
1234 && (strcmp((char*)fontformat, "Type 1") != 0)
1235 #endif
1236 ) {
1237 continue;
1238 }
1239 result = (*FcPatternGetCharSet)(fontPattern,
1240 FC_CHARSET, 0, &charset);
1241 if (result != FcResultMatch) {
1242 free(family);
1243 free(fullname);
1244 free(styleStr);
1245 free(file);
1246 (*FcPatternDestroy)(pattern);
1247 (*FcFontSetDestroy)(fontset);
1248 (*env)->ReleaseStringUTFChars(env,
1249 fcNameStr, (const char*)fcName);
1250 closeFontConfig(libfontconfig, JNI_FALSE);
1251 return;
1252 }
1253
1254 /* We don't want 20 or 30 fonts, so once we hit 10 fonts,
1255 * then require that they really be adding value. Too many
1256 * adversely affects load time for minimal value-add.
1257 * This is still likely far more than we've had in the past.
1258 */
1259 if (j==10) {
1260 minGlyphs = 50;
1261 }
1262 if (unionCharset == NULL) {
1263 unionCharset = charset;
1264 } else {
1265 if ((*FcCharSetSubtractCount)(charset, unionCharset)
1266 > minGlyphs) {
1267 unionCharset = (* FcCharSetUnion)(unionCharset, charset);
1268 } else {
1269 continue;
1270 }
1271 }
1272
1273 fontCount++; // found a font we will use.
1274 (*FcPatternGetString)(fontPattern, FC_FILE, 0, &file[j]);
1275 (*FcPatternGetString)(fontPattern, FC_FAMILY, 0, &family[j]);
1276 (*FcPatternGetString)(fontPattern, FC_STYLE, 0, &styleStr[j]);
1277 (*FcPatternGetString)(fontPattern, FC_FULLNAME, 0, &fullname[j]);
1278 if (!includeFallbacks) {
1279 break;
1280 }
1281 }
1282
1283 /* Once we get here 'fontCount' is the number of returned fonts
1284 * we actually want to use, so we create 'fcFontArr' of that length.
1285 * The non-null entries of "family[]" etc are those fonts.
1286 * Then loop again over all nfonts adding just those non-null ones
1287 * to 'fcFontArr'. If its null (we didn't want the font)
1288 * then we don't enter the main body.
1289 * So we should never get more than 'fontCount' entries.
1290 */
1291 if (includeFallbacks) {
1292 fcFontArr =
1293 (*env)->NewObjectArray(env, fontCount, fcFontClass, NULL);
1294 (*env)->SetObjectField(env,fcCompFontObj, fcAllFontsID, fcFontArr);
1295 }
1296 fn=0;
1297
1298 for (j=0;j<nfonts;j++) {
1299 if (family[j] != NULL) {
1300 jobject fcFont =
1301 (*env)->NewObject(env, fcFontClass, fcFontCons);
1302 jstr = (*env)->NewStringUTF(env, (const char*)family[j]);
1303 (*env)->SetObjectField(env, fcFont, familyNameID, jstr);
1304 if (file[j] != NULL) {
1305 jstr = (*env)->NewStringUTF(env, (const char*)file[j]);
1306 (*env)->SetObjectField(env, fcFont, fontFileID, jstr);
1307 }
1308 if (styleStr[j] != NULL) {
1309 jstr = (*env)->NewStringUTF(env, (const char*)styleStr[j]);
1310 (*env)->SetObjectField(env, fcFont, styleNameID, jstr);
1311 }
1312 if (fullname[j] != NULL) {
1313 jstr = (*env)->NewStringUTF(env, (const char*)fullname[j]);
1314 (*env)->SetObjectField(env, fcFont, fullNameID, jstr);
1315 }
1316 if (fn==0) {
1317 (*env)->SetObjectField(env, fcCompFontObj,
1318 fcFirstFontID, fcFont);
1319 }
1320 if (includeFallbacks) {
1321 (*env)->SetObjectArrayElement(env, fcFontArr, fn++,fcFont);
1322 } else {
1323 break;
1324 }
1325 }
1326 }
1327 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName);
1328 (*FcFontSetDestroy)(fontset);
1329 (*FcPatternDestroy)(pattern);
1330 free(family);
1331 free(styleStr);
1332 free(fullname);
1333 free(file);
1334 }
1335
1336 /* release resources and close the ".so" */
1337
1338 if (locale) {
1339 (*env)->ReleaseStringUTFChars (env, localeStr, (const char*)locale);
1340 }
1341 closeFontConfig(libfontconfig, JNI_TRUE);
1342 }