1 /*
2 * Copyright (c) 1998, 2011, 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 #ifdef __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 <sun_font_FontManager.h>
44 #ifndef HEADLESS
45 #include <X11/Xlib.h>
46 #include <awt.h>
47 #else
48 /* locks ought to be included from awt.h */
49 #define AWT_LOCK()
50 #define AWT_UNLOCK()
51 #endif /* !HEADLESS */
52
53 #if defined(__linux__) && !defined(MAP_FAILED)
54 #define MAP_FAILED ((caddr_t)-1)
55 #endif
56
57 #ifndef HEADLESS
58 extern Display *awt_display;
59 #endif /* !HEADLESS */
60
61
62 #define MAXFDIRS 512 /* Max number of directories that contain fonts */
63
64 #ifndef __linux__
65 /*
66 * This can be set in the makefile to "/usr/X11" if so desired.
67 */
68 #ifndef OPENWINHOMELIB
69 #define OPENWINHOMELIB "/usr/openwin/lib/"
70 #endif
71
72 /* This is all known Solaris X11 directories on Solaris 8, 9 and 10.
73 * It is ordered to give precedence to TrueType directories.
74 * It is needed if fontconfig is not installed or configured properly.
75 */
76 static char *fullSolarisFontPath[] = {
77 OPENWINHOMELIB "X11/fonts/TrueType",
78 OPENWINHOMELIB "locale/euro_fonts/X11/fonts/TrueType",
79 OPENWINHOMELIB "locale/iso_8859_2/X11/fonts/TrueType",
80 OPENWINHOMELIB "locale/iso_8859_5/X11/fonts/TrueType",
81 OPENWINHOMELIB "locale/iso_8859_7/X11/fonts/TrueType",
82 OPENWINHOMELIB "locale/iso_8859_8/X11/fonts/TrueType",
83 OPENWINHOMELIB "locale/iso_8859_9/X11/fonts/TrueType",
84 OPENWINHOMELIB "locale/iso_8859_13/X11/fonts/TrueType",
85 OPENWINHOMELIB "locale/iso_8859_15/X11/fonts/TrueType",
86 OPENWINHOMELIB "locale/ar/X11/fonts/TrueType",
87 OPENWINHOMELIB "locale/hi_IN.UTF-8/X11/fonts/TrueType",
88 OPENWINHOMELIB "locale/ja/X11/fonts/TT",
89 OPENWINHOMELIB "locale/ko/X11/fonts/TrueType",
90 OPENWINHOMELIB "locale/ko.UTF-8/X11/fonts/TrueType",
91 OPENWINHOMELIB "locale/KOI8-R/X11/fonts/TrueType",
92 OPENWINHOMELIB "locale/ru.ansi-1251/X11/fonts/TrueType",
93 OPENWINHOMELIB "locale/th_TH/X11/fonts/TrueType",
94 OPENWINHOMELIB "locale/zh_TW/X11/fonts/TrueType",
95 OPENWINHOMELIB "locale/zh_TW.BIG5/X11/fonts/TT",
96 OPENWINHOMELIB "locale/zh_HK.BIG5HK/X11/fonts/TT",
97 OPENWINHOMELIB "locale/zh_CN.GB18030/X11/fonts/TrueType",
98 OPENWINHOMELIB "locale/zh/X11/fonts/TrueType",
99 OPENWINHOMELIB "locale/zh.GBK/X11/fonts/TrueType",
100 OPENWINHOMELIB "X11/fonts/Type1",
101 OPENWINHOMELIB "X11/fonts/Type1/sun",
102 OPENWINHOMELIB "X11/fonts/Type1/sun/outline",
103 OPENWINHOMELIB "locale/iso_8859_2/X11/fonts/Type1",
104 OPENWINHOMELIB "locale/iso_8859_4/X11/fonts/Type1",
105 OPENWINHOMELIB "locale/iso_8859_5/X11/fonts/Type1",
106 OPENWINHOMELIB "locale/iso_8859_7/X11/fonts/Type1",
107 OPENWINHOMELIB "locale/iso_8859_8/X11/fonts/Type1",
108 OPENWINHOMELIB "locale/iso_8859_9/X11/fonts/Type1",
109 OPENWINHOMELIB "locale/iso_8859_13/X11/fonts/Type1",
110 OPENWINHOMELIB "locale/ar/X11/fonts/Type1",
111 NULL, /* terminates the list */
112 };
113
114 #else /* __linux */
115 /* All the known interesting locations we have discovered on
116 * various flavors of Linux
117 */
118 static char *fullLinuxFontPath[] = {
119 "/usr/X11R6/lib/X11/fonts/TrueType", /* RH 7.1+ */
120 "/usr/X11R6/lib/X11/fonts/truetype", /* SuSE */
121 "/usr/X11R6/lib/X11/fonts/tt",
122 "/usr/X11R6/lib/X11/fonts/TTF",
123 "/usr/X11R6/lib/X11/fonts/OTF", /* RH 9.0 (but empty!) */
124 "/usr/share/fonts/ja/TrueType", /* RH 7.2+ */
125 "/usr/share/fonts/truetype",
126 "/usr/share/fonts/ko/TrueType", /* RH 9.0 */
127 "/usr/share/fonts/zh_CN/TrueType", /* RH 9.0 */
128 "/usr/share/fonts/zh_TW/TrueType", /* RH 9.0 */
129 "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType", /* Debian */
130 "/usr/X11R6/lib/X11/fonts/Type1",
131 "/usr/share/fonts/default/Type1", /* RH 9.0 */
132 NULL, /* terminates the list */
133 };
134 #endif
135
136 static char **getFontConfigLocations();
137
138 typedef struct {
139 const char *name[MAXFDIRS];
140 int num;
141 } fDirRecord, *fDirRecordPtr;
142
143 #ifndef HEADLESS
144
145 /*
146 * Returns True if display is local, False of it's remote.
147 */
148 jboolean isDisplayLocal(JNIEnv *env) {
149 static jboolean isLocal = False;
150 static jboolean isLocalSet = False;
151 jboolean ret;
152
153 if (! isLocalSet) {
154 jclass geCls = (*env)->FindClass(env, "java/awt/GraphicsEnvironment");
155 jmethodID getLocalGE = (*env)->GetStaticMethodID(env, geCls,
156 "getLocalGraphicsEnvironment",
157 "()Ljava/awt/GraphicsEnvironment;");
158 jobject ge = (*env)->CallStaticObjectMethod(env, geCls, getLocalGE);
159
160 jclass sgeCls = (*env)->FindClass(env,
161 "sun/java2d/SunGraphicsEnvironment");
162 if ((*env)->IsInstanceOf(env, ge, sgeCls)) {
163 jmethodID isDisplayLocal = (*env)->GetMethodID(env, sgeCls,
164 "isDisplayLocal",
165 "()Z");
166 isLocal = (*env)->CallBooleanMethod(env, ge, isDisplayLocal);
167 } else {
168 isLocal = True;
169 }
170 isLocalSet = True;
171 }
172
173 return isLocal;
174 }
175
176 static void AddFontsToX11FontPath ( fDirRecord *fDirP )
177 {
178 char *onePath;
179 int index, nPaths;
180 int origNumPaths, length;
181 int origIndex;
182 int totalDirCount;
183 char **origFontPath;
184 char **tempFontPath;
185 int doNotAppend;
186 int *appendDirList;
187 char **newFontPath;
188 int err, compareLength;
189 char fontDirPath[512];
190 int dirFile;
191
192 doNotAppend = 0;
193
194 if ( fDirP->num == 0 ) return;
195
196 appendDirList = malloc ( fDirP->num * sizeof ( int ));
197 if ( appendDirList == NULL ) {
198 return; /* if it fails we cannot do much */
199 }
200
201 origFontPath = XGetFontPath ( awt_display, &nPaths );
202
203 totalDirCount = nPaths;
204 origNumPaths = nPaths;
205 tempFontPath = origFontPath;
206
207
208 for (index = 0; index < fDirP->num; index++ ) {
209
210 doNotAppend = 0;
211
212 tempFontPath = origFontPath;
213 for ( origIndex = 0; origIndex < nPaths; origIndex++ ) {
214
215 onePath = *tempFontPath;
216
217 compareLength = strlen ( onePath );
218 if ( onePath[compareLength -1] == '/' )
219 compareLength--;
220
221 /* there is a slash at the end of every solaris X11 font path name */
222 if ( strncmp ( onePath, fDirP->name[index], compareLength ) == 0 ) {
223 doNotAppend = 1;
224 break;
225 }
226 tempFontPath++;
227 }
228
229 appendDirList[index] = 0;
230 if ( doNotAppend == 0 ) {
231 strcpy ( fontDirPath, fDirP->name[index] );
232 strcat ( fontDirPath, "/fonts.dir" );
233 dirFile = open ( fontDirPath, O_RDONLY, 0 );
234 if ( dirFile == -1 ) {
235 doNotAppend = 1;
236 } else {
237 close ( dirFile );
238 totalDirCount++;
239 appendDirList[index] = 1;
240 }
241 }
242
243 }
244
245 /* if no changes are required do not bother to do a setfontpath */
246 if ( totalDirCount == nPaths ) {
247 free ( ( void *) appendDirList );
248 XFreeFontPath ( origFontPath );
249 return;
250 }
251
252
253 newFontPath = malloc ( totalDirCount * sizeof ( char **) );
254 /* if it fails free things and get out */
255 if ( newFontPath == NULL ) {
256 free ( ( void *) appendDirList );
257 XFreeFontPath ( origFontPath );
258 return;
259 }
260
261 for ( origIndex = 0; origIndex < nPaths; origIndex++ ) {
262 onePath = origFontPath[origIndex];
263 newFontPath[origIndex] = onePath;
264 }
265
266 /* now add the other font paths */
267
268 for (index = 0; index < fDirP->num; index++ ) {
269
270 if ( appendDirList[index] == 1 ) {
271
272 /* printf ( "Appending %s\n", fDirP->name[index] ); */
273
274 onePath = malloc ( ( strlen (fDirP->name[index]) + 2 )* sizeof( char ) );
275 strcpy ( onePath, fDirP->name[index] );
276 strcat ( onePath, "/" );
277 newFontPath[nPaths++] = onePath;
278 /* printf ( "The path to be appended is %s\n", onePath ); */
279 }
280 }
281
282 /* printf ( "The dir count = %d\n", totalDirCount ); */
283 free ( ( void *) appendDirList );
284
285 XSetFontPath ( awt_display, newFontPath, totalDirCount );
286
287 for ( index = origNumPaths; index < totalDirCount; index++ ) {
288 free( newFontPath[index] );
289 }
290
291 free ( (void *) newFontPath );
292 XFreeFontPath ( origFontPath );
293 return;
294 }
295 #endif /* !HEADLESS */
296
297
298 #ifndef HEADLESS
299 static char **getX11FontPath ()
300 {
301 char **x11Path, **fontdirs;
302 int i, pos, slen, nPaths, numDirs;
303
304 x11Path = XGetFontPath (awt_display, &nPaths);
305
306 /* This isn't ever going to be perfect: the font path may contain
307 * much we aren't interested in, but the cost should be moderate
308 * Exclude all directories that contain the strings "Speedo","/F3/",
309 * "75dpi", "100dpi", "misc" or "bitmap", or don't begin with a "/",
310 * the last of which should exclude font servers.
311 * Also exclude the user specific ".gnome*" directories which
312 * aren't going to contain the system fonts we need.
313 * Hopefully we are left only with Type1 and TrueType directories.
314 * It doesn't matter much if there are extraneous directories, it'll just
315 * cost us a little wasted effort upstream.
316 */
317 fontdirs = (char**)calloc(nPaths+1, sizeof(char*));
318 pos = 0;
319 for (i=0; i < nPaths; i++) {
320 if (x11Path[i][0] != '/') {
321 continue;
322 }
323 if (strstr(x11Path[i], "/75dpi") != NULL) {
324 continue;
325 }
326 if (strstr(x11Path[i], "/100dpi") != NULL) {
327 continue;
328 }
329 if (strstr(x11Path[i], "/misc") != NULL) {
330 continue;
331 }
332 if (strstr(x11Path[i], "/Speedo") != NULL) {
333 continue;
334 }
335 if (strstr(x11Path[i], ".gnome") != NULL) {
336 continue;
337 }
338 #ifdef __solaris__
339 if (strstr(x11Path[i], "/F3/") != NULL) {
340 continue;
341 }
342 if (strstr(x11Path[i], "bitmap") != NULL) {
343 continue;
344 }
345 #endif
346 fontdirs[pos] = strdup(x11Path[i]);
347 slen = strlen(fontdirs[pos]);
348 if (slen > 0 && fontdirs[pos][slen-1] == '/') {
349 fontdirs[pos][slen-1] = '\0'; /* null out trailing "/" */
350 }
351 pos++;
352 }
353
354 XFreeFontPath(x11Path);
355 if (pos == 0) {
356 free(fontdirs);
357 fontdirs = NULL;
358 }
359 return fontdirs;
360 }
361
362
363 #endif /* !HEADLESS */
364
365 #ifdef __linux__
366 /* from awt_LoadLibrary.c */
367 JNIEXPORT jboolean JNICALL AWTIsHeadless();
368 #endif
369
370 /* This eliminates duplicates, at a non-linear but acceptable cost
371 * since the lists are expected to be reasonably short, and then
372 * deletes references to non-existent directories, and returns
373 * a single path consisting of unique font directories.
374 */
375 static char* mergePaths(char **p1, char **p2, char **p3, jboolean noType1) {
376
377 int len1=0, len2=0, len3=0, totalLen=0, numDirs=0,
378 currLen, i, j, found, pathLen=0;
379 char **ptr, **fontdirs;
380 char *fontPath = NULL;
381
382 if (p1 != NULL) {
383 ptr = p1;
384 while (*ptr++ != NULL) len1++;
385 }
386 if (p2 != NULL) {
387 ptr = p2;
388
389 while (*ptr++ != NULL) len2++;
390 }
391 if (p3 != NULL) {
392 ptr = p3;
393 while (*ptr++ != NULL) len3++;
394 }
395 totalLen = len1+len2+len3;
396 fontdirs = (char**)calloc(totalLen, sizeof(char*));
397
398 for (i=0; i < len1; i++) {
399 if (noType1 && strstr(p1[i], "Type1") != NULL) {
400 continue;
401 }
402 fontdirs[numDirs++] = p1[i];
403 }
404
405 currLen = numDirs; /* only compare against previous path dirs */
406 for (i=0; i < len2; i++) {
407 if (noType1 && strstr(p2[i], "Type1") != NULL) {
408 continue;
409 }
410 found = 0;
411 for (j=0; j < currLen; j++) {
412 if (strcmp(fontdirs[j], p2[i]) == 0) {
413 found = 1;
414 break;
415 }
416 }
417 if (!found) {
418 fontdirs[numDirs++] = p2[i];
419 }
420 }
421
422 currLen = numDirs; /* only compare against previous path dirs */
423 for (i=0; i < len3; i++) {
424 if (noType1 && strstr(p3[i], "Type1") != NULL) {
425 continue;
426 }
427 found = 0;
428 for (j=0; j < currLen; j++) {
429 if (strcmp(fontdirs[j], p3[i]) == 0) {
430 found = 1;
431 break;
432 }
433 }
434 if (!found) {
435 fontdirs[numDirs++] = p3[i];
436 }
437 }
438
439 /* Now fontdirs contains unique dirs and numDirs records how many.
440 * What we don't know is if they all exist. On reflection I think
441 * this isn't an issue, so for now I will return all these locations,
442 * converted to one string */
443 for (i=0; i<numDirs; i++) {
444 pathLen += (strlen(fontdirs[i]) + 1);
445 }
446 if (pathLen > 0 && (fontPath = malloc(pathLen))) {
447 *fontPath = '\0';
448 for (i = 0; i<numDirs; i++) {
449 if (i != 0) {
450 strcat(fontPath, ":");
451 }
452 strcat(fontPath, fontdirs[i]);
453 }
454 }
455 free (fontdirs);
456
457 return fontPath;
458 }
459
460 /*
461 * The goal of this function is to find all "system" fonts which
462 * are needed by the JRE to display text in supported locales etc, and
463 * to support APIs which allow users to enumerate all system fonts and use
464 * them from their Java applications.
465 * The preferred mechanism is now using the new "fontconfig" library
466 * This exists on newer versions of Linux and Solaris (S10 and above)
467 * The library is dynamically located. The results are merged with
468 * a set of "known" locations and with the X11 font path, if running in
469 * a local X11 environment.
470 * The hardwired paths are built into the JDK binary so as new font locations
471 * are created on a host plaform for them to be located by the JRE they will
472 * need to be added ito the host's font configuration database, typically
473 * /etc/fonts/local.conf, and to ensure that directory contains a fonts.dir
474 * NB: Fontconfig also depends heavily for performance on the host O/S
475 * maintaining up to date caches.
476 * This is consistent with the requirements of the desktop environments
477 * on these OSes.
478 * This also frees us from X11 APIs as JRE is required to function in
479 * a "headless" mode where there is no Xserver.
480 */
481 static char *getPlatformFontPathChars(JNIEnv *env, jboolean noType1) {
482
483 char **fcdirs = NULL, **x11dirs = NULL, **knowndirs = NULL, *path = NULL;
484
485 /* As of 1.5 we try to use fontconfig on both Solaris and Linux.
486 * If its not available NULL is returned.
487 */
488 fcdirs = getFontConfigLocations();
489
490 #ifdef __linux__
491 knowndirs = fullLinuxFontPath;
492 #else /* IF SOLARIS */
493 knowndirs = fullSolarisFontPath;
494 #endif
495
496 /* REMIND: this code requires to be executed when the GraphicsEnvironment
497 * is already initialised. That is always true, but if it were not so,
498 * this code could throw an exception and the fontpath would fail to
499 * be initialised.
500 */
501 #ifndef HEADLESS
502 #ifdef __linux__ /* There's no headless build on linux ... */
503 if (!AWTIsHeadless()) { /* .. so need to call a function to check */
504 #endif
505 /* Using the X11 font path to locate font files is now a fallback
506 * useful only if fontconfig failed, or is incomplete. So we could
507 * remove this code completely and the consequences should be rare
508 * and non-fatal. If this happens, then the calling Java code can
509 * be modified to no longer require that the AWT lock (the X11GE)
510 * be initialised prior to calling this code.
511 */
512 AWT_LOCK();
513 if (isDisplayLocal(env)) {
514 x11dirs = getX11FontPath();
515 }
516 AWT_UNLOCK();
517 #ifdef __linux__
518 }
519 #endif
520 #endif /* !HEADLESS */
521 path = mergePaths(fcdirs, x11dirs, knowndirs, noType1);
522 if (fcdirs != NULL) {
523 char **p = fcdirs;
524 while (*p != NULL) free(*p++);
525 free(fcdirs);
526 }
527
528 if (x11dirs != NULL) {
529 char **p = x11dirs;
530 while (*p != NULL) free(*p++);
531 free(x11dirs);
532 }
533
534 return path;
535 }
536
537 JNIEXPORT jstring JNICALL Java_sun_awt_X11FontManager_getFontPathNative
538 (JNIEnv *env, jobject thiz, jboolean noType1) {
539 jstring ret;
540 static char *ptr = NULL; /* retain result across calls */
541
542 if (ptr == NULL) {
543 ptr = getPlatformFontPathChars(env, noType1);
544 }
545 ret = (*env)->NewStringUTF(env, ptr);
546 return ret;
547 }
548
549 #include <dlfcn.h>
550 #ifndef __linux__ /* i.e. is solaris */
551 #include <link.h>
552 #endif
553
554 #include "fontconfig.h"
555
556
557 static void* openFontConfig() {
558
559 char *homeEnv;
560 static char *homeEnvStr = "HOME="; /* must be static */
561 void* libfontconfig = NULL;
562 #ifdef __solaris__
563 #define SYSINFOBUFSZ 8
564 char sysinfobuf[SYSINFOBUFSZ];
565 #endif
566
567 /* Private workaround to not use fontconfig library.
568 * May be useful during testing/debugging
569 */
570 char *useFC = getenv("USE_J2D_FONTCONFIG");
571 if (useFC != NULL && !strcmp(useFC, "no")) {
572 return NULL;
573 }
574
575 #ifdef __solaris__
576 /* fontconfig is likely not properly configured on S8/S9 - skip it,
577 * although allow user to override this behaviour with an env. variable
578 * ie if USE_J2D_FONTCONFIG=yes then we skip this test.
579 * NB "4" is the length of a string which matches our patterns.
580 */
581 if (useFC == NULL || strcmp(useFC, "yes")) {
582 if (sysinfo(SI_RELEASE, sysinfobuf, SYSINFOBUFSZ) == 4) {
583 if ((!strcmp(sysinfobuf, "5.8") || !strcmp(sysinfobuf, "5.9"))) {
584 return NULL;
585 }
586 }
587 }
588 #endif
589 /* 64 bit sparc should pick up the right version from the lib path.
590 * New features may be added to libfontconfig, this is expected to
591 * be compatible with old features, but we may need to start
592 * distinguishing the library version, to know whether to expect
593 * certain symbols - and functionality - to be available.
594 * Also add explicit search for .so.1 in case .so symlink doesn't exist.
595 */
596 libfontconfig = dlopen("libfontconfig.so.1", RTLD_LOCAL|RTLD_LAZY);
597 if (libfontconfig == NULL) {
598 libfontconfig = dlopen("libfontconfig.so", RTLD_LOCAL|RTLD_LAZY);
599 if (libfontconfig == NULL) {
600 return NULL;
601 }
602 }
603
604 /* Version 1.0 of libfontconfig crashes if HOME isn't defined in
605 * the environment. This should generally never happen, but we can't
606 * control it, and can't control the version of fontconfig, so iff
607 * its not defined we set it to an empty value which is sufficient
608 * to prevent a crash. I considered unsetting it before exit, but
609 * it doesn't appear to work on Solaris, so I will leave it set.
610 */
611 homeEnv = getenv("HOME");
612 if (homeEnv == NULL) {
613 putenv(homeEnvStr);
614 }
615
616 return libfontconfig;
617 }
618
619 typedef void* (FcFiniFuncType)();
620
621 static void closeFontConfig(void* libfontconfig, jboolean fcFini) {
622
623 /* NB FcFini is not in (eg) the Solaris 10 version of fontconfig. Its not
624 * clear if this means we are really leaking resources in those cases
625 * but it seems we should call this function when its available.
626 * But since the Swing GTK code may be still accessing the lib, its probably
627 * safest for now to just let this "leak" rather than potentially
628 * concurrently free global data still in use by other code.
629 */
630 #if 0
631 if (fcFini) { /* release resources */
632 FcFiniFuncType FcFini = (FcFiniFuncType)dlsym(libfontconfig, "FcFini");
633
634 if (FcFini != NULL) {
635 (*FcFini)();
636 }
637 }
638 #endif
639 dlclose(libfontconfig);
640 }
641
642 typedef FcConfig* (*FcInitLoadConfigFuncType)();
643 typedef FcPattern* (*FcPatternBuildFuncType)(FcPattern *orig, ...);
644 typedef FcObjectSet* (*FcObjectSetFuncType)(const char *first, ...);
645 typedef FcFontSet* (*FcFontListFuncType)(FcConfig *config,
646 FcPattern *p,
647 FcObjectSet *os);
648 typedef FcResult (*FcPatternGetBoolFuncType)(const FcPattern *p,
649 const char *object,
650 int n,
651 FcBool *b);
652 typedef FcResult (*FcPatternGetIntegerFuncType)(const FcPattern *p,
653 const char *object,
654 int n,
655 int *i);
656 typedef FcResult (*FcPatternGetStringFuncType)(const FcPattern *p,
657 const char *object,
658 int n,
659 FcChar8 ** s);
660 typedef FcChar8* (*FcStrDirnameFuncType)(const FcChar8 *file);
661 typedef void (*FcPatternDestroyFuncType)(FcPattern *p);
662 typedef void (*FcFontSetDestroyFuncType)(FcFontSet *s);
663 typedef FcPattern* (*FcNameParseFuncType)(const FcChar8 *name);
664 typedef FcBool (*FcPatternAddStringFuncType)(FcPattern *p,
665 const char *object,
666 const FcChar8 *s);
667 typedef void (*FcDefaultSubstituteFuncType)(FcPattern *p);
668 typedef FcBool (*FcConfigSubstituteFuncType)(FcConfig *config,
669 FcPattern *p,
670 FcMatchKind kind);
671 typedef FcPattern* (*FcFontMatchFuncType)(FcConfig *config,
672 FcPattern *p,
673 FcResult *result);
674 typedef FcFontSet* (*FcFontSetCreateFuncType)();
675 typedef FcBool (*FcFontSetAddFuncType)(FcFontSet *s, FcPattern *font);
676
677 typedef FcResult (*FcPatternGetCharSetFuncType)(FcPattern *p,
678 const char *object,
679 int n,
680 FcCharSet **c);
681 typedef FcFontSet* (*FcFontSortFuncType)(FcConfig *config,
682 FcPattern *p,
683 FcBool trim,
684 FcCharSet **csp,
685 FcResult *result);
686 typedef FcCharSet* (*FcCharSetUnionFuncType)(const FcCharSet *a,
687 const FcCharSet *b);
688 typedef FcChar32 (*FcCharSetSubtractCountFuncType)(const FcCharSet *a,
689 const FcCharSet *b);
690
691 typedef int (*FcGetVersionFuncType)();
692
693 typedef FcStrList* (*FcConfigGetCacheDirsFuncType)(FcConfig *config);
694 typedef FcChar8* (*FcStrListNextFuncType)(FcStrList *list);
695 typedef FcChar8* (*FcStrListDoneFuncType)(FcStrList *list);
696
697 static char **getFontConfigLocations() {
698
699 char **fontdirs;
700 int numdirs = 0;
701 FcInitLoadConfigFuncType FcInitLoadConfig;
702 FcPatternBuildFuncType FcPatternBuild;
703 FcObjectSetFuncType FcObjectSetBuild;
704 FcFontListFuncType FcFontList;
705 FcPatternGetStringFuncType FcPatternGetString;
706 FcStrDirnameFuncType FcStrDirname;
707 FcPatternDestroyFuncType FcPatternDestroy;
708 FcFontSetDestroyFuncType FcFontSetDestroy;
709
710 FcConfig *fontconfig;
711 FcPattern *pattern;
712 FcObjectSet *objset;
713 FcFontSet *fontSet;
714 FcStrList *strList;
715 FcChar8 *str;
716 int i, f, found, len=0;
717 char **fontPath;
718
719 void* libfontconfig = openFontConfig();
720
721 if (libfontconfig == NULL) {
722 return NULL;
723 }
724
725 FcPatternBuild =
726 (FcPatternBuildFuncType)dlsym(libfontconfig, "FcPatternBuild");
727 FcObjectSetBuild =
728 (FcObjectSetFuncType)dlsym(libfontconfig, "FcObjectSetBuild");
729 FcFontList =
730 (FcFontListFuncType)dlsym(libfontconfig, "FcFontList");
731 FcPatternGetString =
732 (FcPatternGetStringFuncType)dlsym(libfontconfig, "FcPatternGetString");
733 FcStrDirname =
734 (FcStrDirnameFuncType)dlsym(libfontconfig, "FcStrDirname");
735 FcPatternDestroy =
736 (FcPatternDestroyFuncType)dlsym(libfontconfig, "FcPatternDestroy");
737 FcFontSetDestroy =
738 (FcFontSetDestroyFuncType)dlsym(libfontconfig, "FcFontSetDestroy");
739
740 if (FcPatternBuild == NULL ||
741 FcObjectSetBuild == NULL ||
742 FcPatternGetString == NULL ||
743 FcFontList == NULL ||
744 FcStrDirname == NULL ||
745 FcPatternDestroy == NULL ||
746 FcFontSetDestroy == NULL) { /* problem with the library: return. */
747 closeFontConfig(libfontconfig, JNI_FALSE);
748 return NULL;
749 }
750
751 /* Make calls into the fontconfig library to build a search for
752 * outline fonts, and to get the set of full file paths from the matches.
753 * This set is returned from the call to FcFontList(..)
754 * We allocate an array of char* pointers sufficient to hold all
755 * the matches + 1 extra which ensures there will be a NULL after all
756 * valid entries.
757 * We call FcStrDirname strip the file name from the path, and
758 * check if we have yet seen this directory. If not we add a pointer to
759 * it into our array of char*. Note that FcStrDirname returns newly
760 * allocated storage so we can use this in the return char** value.
761 * Finally we clean up, freeing allocated resources, and return the
762 * array of unique directories.
763 */
764 pattern = (*FcPatternBuild)(NULL, FC_OUTLINE, FcTypeBool, FcTrue, NULL);
765 objset = (*FcObjectSetBuild)(FC_FILE, NULL);
766 fontSet = (*FcFontList)(NULL, pattern, objset);
767 fontdirs = (char**)calloc(fontSet->nfont+1, sizeof(char*));
768 for (f=0; f < fontSet->nfont; f++) {
769 FcChar8 *file;
770 FcChar8 *dir;
771 if ((*FcPatternGetString)(fontSet->fonts[f], FC_FILE, 0, &file) ==
772 FcResultMatch) {
773 dir = (*FcStrDirname)(file);
774 found = 0;
775 for (i=0;i<numdirs; i++) {
776 if (strcmp(fontdirs[i], (char*)dir) == 0) {
777 found = 1;
778 break;
779 }
780 }
781 if (!found) {
782 fontdirs[numdirs++] = (char*)dir;
783 } else {
784 free((char*)dir);
785 }
786 }
787 }
788
789 /* Free memory and close the ".so" */
790 (*FcFontSetDestroy)(fontSet);
791 (*FcPatternDestroy)(pattern);
792 closeFontConfig(libfontconfig, JNI_TRUE);
793 return fontdirs;
794 }
795
796 /* These are copied from sun.awt.SunHints.
797 * Consider initialising them as ints using JNI for more robustness.
798 */
799 #define TEXT_AA_OFF 1
800 #define TEXT_AA_ON 2
801 #define TEXT_AA_LCD_HRGB 4
802 #define TEXT_AA_LCD_HBGR 5
803 #define TEXT_AA_LCD_VRGB 6
804 #define TEXT_AA_LCD_VBGR 7
805
806 JNIEXPORT jint JNICALL
807 Java_sun_font_FontConfigManager_getFontConfigAASettings
808 (JNIEnv *env, jclass obj, jstring localeStr, jstring fcNameStr) {
809
810 FcNameParseFuncType FcNameParse;
811 FcPatternAddStringFuncType FcPatternAddString;
812 FcConfigSubstituteFuncType FcConfigSubstitute;
813 FcDefaultSubstituteFuncType FcDefaultSubstitute;
814 FcFontMatchFuncType FcFontMatch;
815 FcPatternGetBoolFuncType FcPatternGetBool;
816 FcPatternGetIntegerFuncType FcPatternGetInteger;
817 FcPatternDestroyFuncType FcPatternDestroy;
818
819 FcPattern *pattern, *matchPattern;
820 FcResult result;
821 FcBool antialias = FcFalse;
822 int rgba = 0;
823 const char *locale=NULL, *fcName=NULL;
824 void* libfontconfig;
825
826 if (fcNameStr == NULL || localeStr == NULL) {
827 return -1;
828 }
829
830 fcName = (*env)->GetStringUTFChars(env, fcNameStr, 0);
831 if (fcName == NULL) {
832 return -1;
833 }
834 locale = (*env)->GetStringUTFChars(env, localeStr, 0);
835
836 if ((libfontconfig = openFontConfig()) == NULL) {
837 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName);
838 if (locale) {
839 (*env)->ReleaseStringUTFChars (env, localeStr,(const char*)locale);
840 }
841 return -1;
842 }
843
844 FcNameParse = (FcNameParseFuncType)dlsym(libfontconfig, "FcNameParse");
845 FcPatternAddString =
846 (FcPatternAddStringFuncType)dlsym(libfontconfig, "FcPatternAddString");
847 FcConfigSubstitute =
848 (FcConfigSubstituteFuncType)dlsym(libfontconfig, "FcConfigSubstitute");
849 FcDefaultSubstitute = (FcDefaultSubstituteFuncType)
850 dlsym(libfontconfig, "FcDefaultSubstitute");
851 FcFontMatch = (FcFontMatchFuncType)dlsym(libfontconfig, "FcFontMatch");
852 FcPatternGetBool = (FcPatternGetBoolFuncType)
853 dlsym(libfontconfig, "FcPatternGetBool");
854 FcPatternGetInteger = (FcPatternGetIntegerFuncType)
855 dlsym(libfontconfig, "FcPatternGetInteger");
856 FcPatternDestroy =
857 (FcPatternDestroyFuncType)dlsym(libfontconfig, "FcPatternDestroy");
858
859 if (FcNameParse == NULL ||
860 FcPatternAddString == NULL ||
861 FcConfigSubstitute == NULL ||
862 FcDefaultSubstitute == NULL ||
863 FcFontMatch == NULL ||
864 FcPatternGetBool == NULL ||
865 FcPatternGetInteger == NULL ||
866 FcPatternDestroy == NULL) { /* problem with the library: return. */
867
868 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName);
869 if (locale) {
870 (*env)->ReleaseStringUTFChars (env, localeStr,(const char*)locale);
871 }
872 closeFontConfig(libfontconfig, JNI_FALSE);
873 return -1;
874 }
875
876
877 pattern = (*FcNameParse)((FcChar8 *)fcName);
878 if (locale != NULL) {
879 (*FcPatternAddString)(pattern, FC_LANG, (unsigned char*)locale);
880 }
881 (*FcConfigSubstitute)(NULL, pattern, FcMatchPattern);
882 (*FcDefaultSubstitute)(pattern);
883 matchPattern = (*FcFontMatch)(NULL, pattern, &result);
884 /* Perhaps should call FcFontRenderPrepare() here as some pattern
885 * elements might change as a result of that call, but I'm not seeing
886 * any difference in testing.
887 */
888 if (matchPattern) {
889 (*FcPatternGetBool)(matchPattern, FC_ANTIALIAS, 0, &antialias);
890 (*FcPatternGetInteger)(matchPattern, FC_RGBA, 0, &rgba);
891 (*FcPatternDestroy)(matchPattern);
892 }
893 (*FcPatternDestroy)(pattern);
894
895 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName);
896 if (locale) {
897 (*env)->ReleaseStringUTFChars (env, localeStr, (const char*)locale);
898 }
899 closeFontConfig(libfontconfig, JNI_TRUE);
900
901 if (antialias == FcFalse) {
902 return TEXT_AA_OFF;
903 } else if (rgba <= FC_RGBA_UNKNOWN || rgba >= FC_RGBA_NONE) {
904 return TEXT_AA_ON;
905 } else {
906 switch (rgba) {
907 case FC_RGBA_RGB : return TEXT_AA_LCD_HRGB;
908 case FC_RGBA_BGR : return TEXT_AA_LCD_HBGR;
909 case FC_RGBA_VRGB : return TEXT_AA_LCD_VRGB;
910 case FC_RGBA_VBGR : return TEXT_AA_LCD_VBGR;
911 default : return TEXT_AA_LCD_HRGB; // should not get here.
912 }
913 }
914 }
915
916 JNIEXPORT jint JNICALL
917 Java_sun_font_FontConfigManager_getFontConfigVersion
918 (JNIEnv *env, jclass obj) {
919
920 void* libfontconfig;
921 FcGetVersionFuncType FcGetVersion;
922 int version = 0;
923
924 if ((libfontconfig = openFontConfig()) == NULL) {
925 return 0;
926 }
927
928 FcGetVersion = (FcGetVersionFuncType)dlsym(libfontconfig, "FcGetVersion");
929
930 if (FcGetVersion == NULL) {
931 closeFontConfig(libfontconfig, JNI_FALSE);
932 return 0;
933 }
934 version = (*FcGetVersion)();
935 closeFontConfig(libfontconfig, JNI_FALSE);
936
937 return version;
938 }
939
940
941 JNIEXPORT void JNICALL
942 Java_sun_font_FontConfigManager_getFontConfig
943 (JNIEnv *env, jclass obj, jstring localeStr, jobject fcInfoObj,
944 jobjectArray fcCompFontArray, jboolean includeFallbacks) {
945
946 FcNameParseFuncType FcNameParse;
947 FcPatternAddStringFuncType FcPatternAddString;
948 FcConfigSubstituteFuncType FcConfigSubstitute;
949 FcDefaultSubstituteFuncType FcDefaultSubstitute;
950 FcFontMatchFuncType FcFontMatch;
951 FcPatternGetStringFuncType FcPatternGetString;
952 FcPatternDestroyFuncType FcPatternDestroy;
953 FcPatternGetCharSetFuncType FcPatternGetCharSet;
954 FcFontSortFuncType FcFontSort;
955 FcFontSetDestroyFuncType FcFontSetDestroy;
956 FcCharSetUnionFuncType FcCharSetUnion;
957 FcCharSetSubtractCountFuncType FcCharSetSubtractCount;
958 FcGetVersionFuncType FcGetVersion;
959 FcConfigGetCacheDirsFuncType FcConfigGetCacheDirs;
960 FcStrListNextFuncType FcStrListNext;
961 FcStrListDoneFuncType FcStrListDone;
962
963 int i, arrlen;
964 jobject fcCompFontObj;
965 jstring fcNameStr, jstr;
966 const char *locale, *fcName;
967 FcPattern *pattern;
968 FcResult result;
969 void* libfontconfig;
970 jfieldID fcNameID, fcFirstFontID, fcAllFontsID, fcVersionID, fcCacheDirsID;
971 jfieldID familyNameID, styleNameID, fullNameID, fontFileID;
972 jmethodID fcFontCons;
973 char* debugMinGlyphsStr = getenv("J2D_DEBUG_MIN_GLYPHS");
974
975 jclass fcInfoClass =
976 (*env)->FindClass(env, "sun/font/FontConfigManager$FontConfigInfo");
977 jclass fcCompFontClass =
978 (*env)->FindClass(env, "sun/font/FontConfigManager$FcCompFont");
979 jclass fcFontClass =
980 (*env)->FindClass(env, "sun/font/FontConfigManager$FontConfigFont");
981
982 if (fcInfoObj == NULL || fcCompFontArray == NULL || fcInfoClass == NULL ||
983 fcCompFontClass == NULL || fcFontClass == NULL) {
984 return;
985 }
986
987 fcVersionID = (*env)->GetFieldID(env, fcInfoClass, "fcVersion", "I");
988
989 fcCacheDirsID = (*env)->GetFieldID(env, fcInfoClass, "cacheDirs",
990 "[Ljava/lang/String;");
991
992 fcNameID = (*env)->GetFieldID(env, fcCompFontClass,
993 "fcName", "Ljava/lang/String;");
994 fcFirstFontID =
995 (*env)->GetFieldID(env, fcCompFontClass, "firstFont",
996 "Lsun/font/FontConfigManager$FontConfigFont;");
997
998 fcAllFontsID =
999 (*env)->GetFieldID(env, fcCompFontClass, "allFonts",
1000 "[Lsun/font/FontConfigManager$FontConfigFont;");
1001
1002 fcFontCons = (*env)->GetMethodID(env, fcFontClass, "<init>", "()V");
1003
1004 familyNameID = (*env)->GetFieldID(env, fcFontClass,
1005 "familyName", "Ljava/lang/String;");
1006 styleNameID = (*env)->GetFieldID(env, fcFontClass,
1007 "styleStr", "Ljava/lang/String;");
1008 fullNameID = (*env)->GetFieldID(env, fcFontClass,
1009 "fullName", "Ljava/lang/String;");
1010 fontFileID = (*env)->GetFieldID(env, fcFontClass,
1011 "fontFile", "Ljava/lang/String;");
1012
1013 if (fcVersionID == NULL || fcCacheDirsID == NULL || fcNameID == NULL ||
1014 fcFirstFontID == NULL || fcAllFontsID == NULL || fcFontCons == NULL ||
1015 familyNameID == NULL || styleNameID == NULL || fullNameID == NULL ||
1016 fontFileID == NULL) {
1017 return;
1018 }
1019
1020 if ((libfontconfig = openFontConfig()) == NULL) {
1021 return;
1022 }
1023
1024 FcNameParse = (FcNameParseFuncType)dlsym(libfontconfig, "FcNameParse");
1025 FcPatternAddString =
1026 (FcPatternAddStringFuncType)dlsym(libfontconfig, "FcPatternAddString");
1027 FcConfigSubstitute =
1028 (FcConfigSubstituteFuncType)dlsym(libfontconfig, "FcConfigSubstitute");
1029 FcDefaultSubstitute = (FcDefaultSubstituteFuncType)
1030 dlsym(libfontconfig, "FcDefaultSubstitute");
1031 FcFontMatch = (FcFontMatchFuncType)dlsym(libfontconfig, "FcFontMatch");
1032 FcPatternGetString =
1033 (FcPatternGetStringFuncType)dlsym(libfontconfig, "FcPatternGetString");
1034 FcPatternDestroy =
1035 (FcPatternDestroyFuncType)dlsym(libfontconfig, "FcPatternDestroy");
1036 FcPatternGetCharSet =
1037 (FcPatternGetCharSetFuncType)dlsym(libfontconfig,
1038 "FcPatternGetCharSet");
1039 FcFontSort =
1040 (FcFontSortFuncType)dlsym(libfontconfig, "FcFontSort");
1041 FcFontSetDestroy =
1042 (FcFontSetDestroyFuncType)dlsym(libfontconfig, "FcFontSetDestroy");
1043 FcCharSetUnion =
1044 (FcCharSetUnionFuncType)dlsym(libfontconfig, "FcCharSetUnion");
1045 FcCharSetSubtractCount =
1046 (FcCharSetSubtractCountFuncType)dlsym(libfontconfig,
1047 "FcCharSetSubtractCount");
1048 FcGetVersion = (FcGetVersionFuncType)dlsym(libfontconfig, "FcGetVersion");
1049
1050 if (FcNameParse == NULL ||
1051 FcPatternAddString == NULL ||
1052 FcConfigSubstitute == NULL ||
1053 FcDefaultSubstitute == NULL ||
1054 FcFontMatch == NULL ||
1055 FcPatternGetString == NULL ||
1056 FcPatternDestroy == NULL ||
1057 FcPatternGetCharSet == NULL ||
1058 FcFontSetDestroy == NULL ||
1059 FcCharSetUnion == NULL ||
1060 FcGetVersion == NULL ||
1061 FcCharSetSubtractCount == NULL) {/* problem with the library: return.*/
1062 closeFontConfig(libfontconfig, JNI_FALSE);
1063 return;
1064 }
1065
1066 (*env)->SetIntField(env, fcInfoObj, fcVersionID, (*FcGetVersion)());
1067
1068 /* Optionally get the cache dir locations. This isn't
1069 * available until v 2.4.x, but this is OK since on those later versions
1070 * we can check the time stamps on the cache dirs to see if we
1071 * are out of date. There are a couple of assumptions here. First
1072 * that the time stamp on the directory changes when the contents are
1073 * updated. Secondly that the locations don't change. The latter is
1074 * most likely if a new version of fontconfig is installed, but we also
1075 * invalidate the cache if we detect that. Arguably even that is "rare",
1076 * and most likely is tied to an OS upgrade which gets a new file anyway.
1077 */
1078 FcConfigGetCacheDirs =
1079 (FcConfigGetCacheDirsFuncType)dlsym(libfontconfig,
1080 "FcConfigGetCacheDirs");
1081 FcStrListNext =
1082 (FcStrListNextFuncType)dlsym(libfontconfig, "FcStrListNext");
1083 FcStrListDone =
1084 (FcStrListDoneFuncType)dlsym(libfontconfig, "FcStrListDone");
1085 if (FcStrListNext != NULL && FcStrListDone != NULL &&
1086 FcConfigGetCacheDirs != NULL) {
1087
1088 FcStrList* cacheDirs;
1089 FcChar8* cacheDir;
1090 int cnt = 0;
1091 jobject cacheDirArray =
1092 (*env)->GetObjectField(env, fcInfoObj, fcCacheDirsID);
1093 int max = (*env)->GetArrayLength(env, cacheDirArray);
1094
1095 cacheDirs = (*FcConfigGetCacheDirs)(NULL);
1096 if (cacheDirs != NULL) {
1097 while ((cnt < max) && (cacheDir = (*FcStrListNext)(cacheDirs))) {
1098 jstr = (*env)->NewStringUTF(env, (const char*)cacheDir);
1099 (*env)->SetObjectArrayElement(env, cacheDirArray, cnt++, jstr);
1100 }
1101 (*FcStrListDone)(cacheDirs);
1102 }
1103 }
1104
1105 locale = (*env)->GetStringUTFChars(env, localeStr, 0);
1106
1107 arrlen = (*env)->GetArrayLength(env, fcCompFontArray);
1108 for (i=0; i<arrlen; i++) {
1109 FcFontSet* fontset;
1110 int fn, j, fontCount, nfonts, minGlyphs;
1111 FcChar8 **family, **styleStr, **fullname, **file;
1112 jarray fcFontArr;
1113
1114 fcCompFontObj = (*env)->GetObjectArrayElement(env, fcCompFontArray, i);
1115 fcNameStr =
1116 (jstring)((*env)->GetObjectField(env, fcCompFontObj, fcNameID));
1117 fcName = (*env)->GetStringUTFChars(env, fcNameStr, 0);
1118 if (fcName == NULL) {
1119 continue;
1120 }
1121 pattern = (*FcNameParse)((FcChar8 *)fcName);
1122 if (pattern == NULL) {
1123 (*env)->ReleaseStringUTFChars(env, fcNameStr, (const char*)fcName);
1124 closeFontConfig(libfontconfig, JNI_FALSE);
1125 return;
1126 }
1127
1128 /* locale may not usually be necessary as fontconfig appears to apply
1129 * this anyway based on the user's environment. However we want
1130 * to use the value of the JDK startup locale so this should take
1131 * care of it.
1132 */
1133 if (locale != NULL) {
1134 (*FcPatternAddString)(pattern, FC_LANG, (unsigned char*)locale);
1135 }
1136 (*FcConfigSubstitute)(NULL, pattern, FcMatchPattern);
1137 (*FcDefaultSubstitute)(pattern);
1138 fontset = (*FcFontSort)(NULL, pattern, FcTrue, NULL, &result);
1139 if (fontset == NULL) {
1140 (*FcPatternDestroy)(pattern);
1141 (*env)->ReleaseStringUTFChars(env, fcNameStr, (const char*)fcName);
1142 closeFontConfig(libfontconfig, JNI_FALSE);
1143 return;
1144 }
1145
1146 /* fontconfig returned us "nfonts". If we are just getting the
1147 * first font, we set nfont to zero. Otherwise we use "nfonts".
1148 * Next create separate C arrrays of length nfonts for family file etc.
1149 * Inspect the returned fonts and the ones we like (adds enough glyphs)
1150 * are added to the arrays and we increment 'fontCount'.
1151 */
1152 nfonts = fontset->nfont;
1153 family = (FcChar8**)calloc(nfonts, sizeof(FcChar8*));
1154 styleStr = (FcChar8**)calloc(nfonts, sizeof(FcChar8*));
1155 fullname = (FcChar8**)calloc(nfonts, sizeof(FcChar8*));
1156 file = (FcChar8**)calloc(nfonts, sizeof(FcChar8*));
1157 if (family == NULL || styleStr == NULL ||
1158 fullname == NULL || file == NULL) {
1159 if (family != NULL) {
1160 free(family);
1161 }
1162 if (styleStr != NULL) {
1163 free(styleStr);
1164 }
1165 if (fullname != NULL) {
1166 free(fullname);
1167 }
1168 if (file != NULL) {
1169 free(file);
1170 }
1171 (*FcPatternDestroy)(pattern);
1172 (*FcFontSetDestroy)(fontset);
1173 (*env)->ReleaseStringUTFChars(env, fcNameStr, (const char*)fcName);
1174 closeFontConfig(libfontconfig, JNI_FALSE);
1175 return;
1176 }
1177 fontCount = 0;
1178 minGlyphs = 20;
1179 if (debugMinGlyphsStr != NULL) {
1180 int val = minGlyphs;
1181 sscanf(debugMinGlyphsStr, "%5d", &val);
1182 if (val >= 0 && val <= 65536) {
1183 minGlyphs = val;
1184 }
1185 }
1186 for (j=0; j<nfonts; j++) {
1187 FcPattern *fontPattern = fontset->fonts[j];
1188 FcChar8 *fontformat;
1189 FcCharSet *unionCharset = NULL, *charset;
1190
1191 fontformat = NULL;
1192 (*FcPatternGetString)(fontPattern, FC_FONTFORMAT, 0, &fontformat);
1193 if (fontformat != NULL && strcmp((char*)fontformat, "TrueType")
1194 != 0) {
1195 continue;
1196 }
1197 result = (*FcPatternGetCharSet)(fontPattern,
1198 FC_CHARSET, 0, &charset);
1199 if (result != FcResultMatch) {
1200 free(family);
1201 free(family);
1202 free(styleStr);
1203 free(file);
1204 (*FcPatternDestroy)(pattern);
1205 (*FcFontSetDestroy)(fontset);
1206 (*env)->ReleaseStringUTFChars(env,
1207 fcNameStr, (const char*)fcName);
1208 closeFontConfig(libfontconfig, JNI_FALSE);
1209 return;
1210 }
1211
1212 /* We don't want 20 or 30 fonts, so once we hit 10 fonts,
1213 * then require that they really be adding value. Too many
1214 * adversely affects load time for minimal value-add.
1215 * This is still likely far more than we've had in the past.
1216 */
1217 if (j==10) {
1218 minGlyphs = 50;
1219 }
1220 if (unionCharset == NULL) {
1221 unionCharset = charset;
1222 } else {
1223 if ((*FcCharSetSubtractCount)(charset, unionCharset)
1224 > minGlyphs) {
1225 unionCharset = (* FcCharSetUnion)(unionCharset, charset);
1226 } else {
1227 continue;
1228 }
1229 }
1230
1231 fontCount++; // found a font we will use.
1232 (*FcPatternGetString)(fontPattern, FC_FILE, 0, &file[j]);
1233 (*FcPatternGetString)(fontPattern, FC_FAMILY, 0, &family[j]);
1234 (*FcPatternGetString)(fontPattern, FC_STYLE, 0, &styleStr[j]);
1235 (*FcPatternGetString)(fontPattern, FC_FULLNAME, 0, &fullname[j]);
1236 if (!includeFallbacks) {
1237 break;
1238 }
1239 }
1240
1241 /* Once we get here 'fontCount' is the number of returned fonts
1242 * we actually want to use, so we create 'fcFontArr' of that length.
1243 * The non-null entries of "family[]" etc are those fonts.
1244 * Then loop again over all nfonts adding just those non-null ones
1245 * to 'fcFontArr'. If its null (we didn't want the font)
1246 * then we don't enter the main body.
1247 * So we should never get more than 'fontCount' entries.
1248 */
1249 if (includeFallbacks) {
1250 fcFontArr =
1251 (*env)->NewObjectArray(env, fontCount, fcFontClass, NULL);
1252 (*env)->SetObjectField(env,fcCompFontObj, fcAllFontsID, fcFontArr);
1253 }
1254 fn=0;
1255
1256 for (j=0;j<nfonts;j++) {
1257 if (family[j] != NULL) {
1258 jobject fcFont =
1259 (*env)->NewObject(env, fcFontClass, fcFontCons);
1260 jstr = (*env)->NewStringUTF(env, (const char*)family[j]);
1261 (*env)->SetObjectField(env, fcFont, familyNameID, jstr);
1262 if (file[j] != NULL) {
1263 jstr = (*env)->NewStringUTF(env, (const char*)file[j]);
1264 (*env)->SetObjectField(env, fcFont, fontFileID, jstr);
1265 }
1266 if (styleStr[j] != NULL) {
1267 jstr = (*env)->NewStringUTF(env, (const char*)styleStr[j]);
1268 (*env)->SetObjectField(env, fcFont, styleNameID, jstr);
1269 }
1270 if (fullname[j] != NULL) {
1271 jstr = (*env)->NewStringUTF(env, (const char*)fullname[j]);
1272 (*env)->SetObjectField(env, fcFont, fullNameID, jstr);
1273 }
1274 if (fn==0) {
1275 (*env)->SetObjectField(env, fcCompFontObj,
1276 fcFirstFontID, fcFont);
1277 }
1278 if (includeFallbacks) {
1279 (*env)->SetObjectArrayElement(env, fcFontArr, fn++,fcFont);
1280 } else {
1281 break;
1282 }
1283 }
1284 }
1285 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName);
1286 (*FcFontSetDestroy)(fontset);
1287 (*FcPatternDestroy)(pattern);
1288 free(family);
1289 free(styleStr);
1290 free(fullname);
1291 free(file);
1292 }
1293
1294 /* release resources and close the ".so" */
1295
1296 if (locale) {
1297 (*env)->ReleaseStringUTFChars (env, localeStr, (const char*)locale);
1298 }
1299 closeFontConfig(libfontconfig, JNI_TRUE);
1300 }