1 /* 2 * Copyright (c) 1998, 2016, 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 JNU_CHECK_EXCEPTION_RETURN(env, JNI_FALSE); 182 } else { 183 isLocal = True; 184 } 185 isLocalSet = True; 186 } 187 188 return isLocal; 189 } 190 191 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 strncpy(fontDirPath, fDirP->name[index], sizeof(fontDirPath)); 247 fontDirPath[sizeof(fontDirPath)-1] = '\0'; 248 strncat(fontDirPath, "/fonts.dir", sizeof(fontDirPath) - strlen(fontDirPath)); 249 dirFile = open ( fontDirPath, O_RDONLY, 0 ); 250 if ( dirFile == -1 ) { 251 doNotAppend = 1; 252 } else { 253 close ( dirFile ); 254 totalDirCount++; 255 appendDirList[index] = 1; 256 } 257 } 258 259 } 260 261 /* if no changes are required do not bother to do a setfontpath */ 262 if ( totalDirCount == nPaths ) { 263 free ( ( void *) appendDirList ); 264 XFreeFontPath ( origFontPath ); 265 return; 266 } 267 268 269 newFontPath = SAFE_SIZE_ARRAY_ALLOC(malloc, totalDirCount, sizeof ( char **) ); 270 /* if it fails free things and get out */ 271 if ( newFontPath == NULL ) { 272 free ( ( void *) appendDirList ); 273 XFreeFontPath ( origFontPath ); 274 return; 275 } 276 277 for ( origIndex = 0; origIndex < nPaths; origIndex++ ) { 278 onePath = origFontPath[origIndex]; 279 newFontPath[origIndex] = onePath; 280 } 281 282 /* now add the other font paths */ 283 284 for (index = 0; index < fDirP->num; index++ ) { 285 286 if ( appendDirList[index] == 1 ) { 287 288 /* printf ( "Appending %s\n", fDirP->name[index] ); */ 289 290 onePath = SAFE_SIZE_ARRAY_ALLOC(malloc, strlen (fDirP->name[index]) + 2, sizeof( char ) ); 291 if (onePath == NULL) { 292 free ( ( void *) appendDirList ); 293 XFreeFontPath ( origFontPath ); 294 return; 295 } 296 strcpy ( onePath, fDirP->name[index] ); 297 strcat ( onePath, "/" ); 298 newFontPath[nPaths++] = onePath; 299 /* printf ( "The path to be appended is %s\n", onePath ); */ 300 } 301 } 302 303 /* printf ( "The dir count = %d\n", totalDirCount ); */ 304 free ( ( void *) appendDirList ); 305 306 XSetFontPath ( awt_display, newFontPath, totalDirCount ); 307 308 for ( index = origNumPaths; index < totalDirCount; index++ ) { 309 free( newFontPath[index] ); 310 } 311 312 free ( (void *) newFontPath ); 313 XFreeFontPath ( origFontPath ); 314 return; 315 } 316 #endif /* !HEADLESS */ 317 318 319 #ifndef HEADLESS 320 static char **getX11FontPath () 321 { 322 char **x11Path, **fontdirs; 323 int i, pos, slen, nPaths, numDirs; 324 325 x11Path = XGetFontPath (awt_display, &nPaths); 326 327 /* This isn't ever going to be perfect: the font path may contain 328 * much we aren't interested in, but the cost should be moderate 329 * Exclude all directories that contain the strings "Speedo","/F3/", 330 * "75dpi", "100dpi", "misc" or "bitmap", or don't begin with a "/", 331 * the last of which should exclude font servers. 332 * Also exclude the user specific ".gnome*" directories which 333 * aren't going to contain the system fonts we need. 334 * Hopefully we are left only with Type1 and TrueType directories. 335 * It doesn't matter much if there are extraneous directories, it'll just 336 * cost us a little wasted effort upstream. 337 */ 338 fontdirs = (char**)calloc(nPaths+1, sizeof(char*)); 339 pos = 0; 340 for (i=0; i < nPaths; i++) { 341 if (x11Path[i][0] != '/') { 342 continue; 343 } 344 if (strstr(x11Path[i], "/75dpi") != NULL) { 345 continue; 346 } 347 if (strstr(x11Path[i], "/100dpi") != NULL) { 348 continue; 349 } 350 if (strstr(x11Path[i], "/misc") != NULL) { 351 continue; 352 } 353 if (strstr(x11Path[i], "/Speedo") != NULL) { 354 continue; 355 } 356 if (strstr(x11Path[i], ".gnome") != NULL) { 357 continue; 358 } 359 #ifdef __solaris__ 360 if (strstr(x11Path[i], "/F3/") != NULL) { 361 continue; 362 } 363 if (strstr(x11Path[i], "bitmap") != NULL) { 364 continue; 365 } 366 #endif 367 fontdirs[pos] = strdup(x11Path[i]); 368 slen = strlen(fontdirs[pos]); 369 if (slen > 0 && fontdirs[pos][slen-1] == '/') { 370 fontdirs[pos][slen-1] = '\0'; /* null out trailing "/" */ 371 } 372 pos++; 373 } 374 375 XFreeFontPath(x11Path); 376 if (pos == 0) { 377 free(fontdirs); 378 fontdirs = NULL; 379 } 380 return fontdirs; 381 } 382 383 384 #endif /* !HEADLESS */ 385 386 #if defined(__linux__) 387 /* from awt_LoadLibrary.c */ 388 JNIEXPORT jboolean JNICALL AWTIsHeadless(); 389 #endif 390 391 /* This eliminates duplicates, at a non-linear but acceptable cost 392 * since the lists are expected to be reasonably short, and then 393 * deletes references to non-existent directories, and returns 394 * a single path consisting of unique font directories. 395 */ 396 static char* mergePaths(char **p1, char **p2, char **p3, jboolean noType1) { 397 398 int len1=0, len2=0, len3=0, totalLen=0, numDirs=0, 399 currLen, i, j, found, pathLen=0; 400 char **ptr, **fontdirs; 401 char *fontPath = NULL; 402 403 if (p1 != NULL) { 404 ptr = p1; 405 while (*ptr++ != NULL) len1++; 406 } 407 if (p2 != NULL) { 408 ptr = p2; 409 410 while (*ptr++ != NULL) len2++; 411 } 412 if (p3 != NULL) { 413 ptr = p3; 414 while (*ptr++ != NULL) len3++; 415 } 416 totalLen = len1+len2+len3; 417 fontdirs = (char**)calloc(totalLen, sizeof(char*)); 418 419 for (i=0; i < len1; i++) { 420 if (noType1 && strstr(p1[i], "Type1") != NULL) { 421 continue; 422 } 423 fontdirs[numDirs++] = p1[i]; 424 } 425 426 currLen = numDirs; /* only compare against previous path dirs */ 427 for (i=0; i < len2; i++) { 428 if (noType1 && strstr(p2[i], "Type1") != NULL) { 429 continue; 430 } 431 found = 0; 432 for (j=0; j < currLen; j++) { 433 if (strcmp(fontdirs[j], p2[i]) == 0) { 434 found = 1; 435 break; 436 } 437 } 438 if (!found) { 439 fontdirs[numDirs++] = p2[i]; 440 } 441 } 442 443 currLen = numDirs; /* only compare against previous path dirs */ 444 for (i=0; i < len3; i++) { 445 if (noType1 && strstr(p3[i], "Type1") != NULL) { 446 continue; 447 } 448 found = 0; 449 for (j=0; j < currLen; j++) { 450 if (strcmp(fontdirs[j], p3[i]) == 0) { 451 found = 1; 452 break; 453 } 454 } 455 if (!found) { 456 fontdirs[numDirs++] = p3[i]; 457 } 458 } 459 460 /* Now fontdirs contains unique dirs and numDirs records how many. 461 * What we don't know is if they all exist. On reflection I think 462 * this isn't an issue, so for now I will return all these locations, 463 * converted to one string */ 464 for (i=0; i<numDirs; i++) { 465 pathLen += (strlen(fontdirs[i]) + 1); 466 } 467 if (pathLen > 0 && (fontPath = malloc(pathLen))) { 468 *fontPath = '\0'; 469 for (i = 0; i<numDirs; i++) { 470 if (i != 0) { 471 strcat(fontPath, ":"); 472 } 473 strcat(fontPath, fontdirs[i]); 474 } 475 } 476 free (fontdirs); 477 478 return fontPath; 479 } 480 481 /* 482 * The goal of this function is to find all "system" fonts which 483 * are needed by the JRE to display text in supported locales etc, and 484 * to support APIs which allow users to enumerate all system fonts and use 485 * them from their Java applications. 486 * The preferred mechanism is now using the new "fontconfig" library 487 * This exists on newer versions of Linux and Solaris (S10 and above) 488 * The library is dynamically located. The results are merged with 489 * a set of "known" locations and with the X11 font path, if running in 490 * a local X11 environment. 491 * The hardwired paths are built into the JDK binary so as new font locations 492 * are created on a host plaform for them to be located by the JRE they will 493 * need to be added ito the host's font configuration database, typically 494 * /etc/fonts/local.conf, and to ensure that directory contains a fonts.dir 495 * NB: Fontconfig also depends heavily for performance on the host O/S 496 * maintaining up to date caches. 497 * This is consistent with the requirements of the desktop environments 498 * on these OSes. 499 * This also frees us from X11 APIs as JRE is required to function in 500 * a "headless" mode where there is no Xserver. 501 */ 502 static char *getPlatformFontPathChars(JNIEnv *env, jboolean noType1, jboolean isX11) { 503 504 char **fcdirs = NULL, **x11dirs = NULL, **knowndirs = NULL, *path = NULL; 505 506 /* As of 1.5 we try to use fontconfig on both Solaris and Linux. 507 * If its not available NULL is returned. 508 */ 509 fcdirs = getFontConfigLocations(); 510 511 #if defined(__linux__) 512 knowndirs = fullLinuxFontPath; 513 #elif defined(__solaris__) 514 knowndirs = fullSolarisFontPath; 515 #elif defined(_AIX) 516 knowndirs = fullAixFontPath; 517 #endif 518 /* REMIND: this code requires to be executed when the GraphicsEnvironment 519 * is already initialised. That is always true, but if it were not so, 520 * this code could throw an exception and the fontpath would fail to 521 * be initialised. 522 */ 523 #ifndef HEADLESS 524 if (isX11) { // The following only works in an x11 environment. 525 #if defined(__linux__) 526 /* There's no headless build on linux ... */ 527 if (!AWTIsHeadless()) { /* .. so need to call a function to check */ 528 #endif 529 /* Using the X11 font path to locate font files is now a fallback 530 * useful only if fontconfig failed, or is incomplete. So we could 531 * remove this code completely and the consequences should be rare 532 * and non-fatal. If this happens, then the calling Java code can 533 * be modified to no longer require that the AWT lock (the X11GE) 534 * be initialised prior to calling this code. 535 */ 536 AWT_LOCK(); 537 if (isDisplayLocal(env)) { 538 x11dirs = getX11FontPath(); 539 } 540 AWT_UNLOCK(); 541 #if defined(__linux__) 542 } 543 #endif 544 } 545 #endif /* !HEADLESS */ 546 path = mergePaths(fcdirs, x11dirs, knowndirs, noType1); 547 if (fcdirs != NULL) { 548 char **p = fcdirs; 549 while (*p != NULL) free(*p++); 550 free(fcdirs); 551 } 552 553 if (x11dirs != NULL) { 554 char **p = x11dirs; 555 while (*p != NULL) free(*p++); 556 free(x11dirs); 557 } 558 559 return path; 560 } 561 562 JNIEXPORT jstring JNICALL Java_sun_awt_FcFontManager_getFontPathNative 563 (JNIEnv *env, jobject thiz, jboolean noType1, jboolean isX11) { 564 jstring ret; 565 static char *ptr = NULL; /* retain result across calls */ 566 567 if (ptr == NULL) { 568 ptr = getPlatformFontPathChars(env, noType1, isX11); 569 } 570 ret = (*env)->NewStringUTF(env, ptr); 571 return ret; 572 } 573 574 #include <dlfcn.h> 575 576 #include "fontconfig.h" 577 578 579 static void* openFontConfig() { 580 581 char *homeEnv; 582 static char *homeEnvStr = "HOME="; /* must be static */ 583 void* libfontconfig = NULL; 584 #ifdef __solaris__ 585 #define SYSINFOBUFSZ 8 586 char sysinfobuf[SYSINFOBUFSZ]; 587 #endif 588 589 /* Private workaround to not use fontconfig library. 590 * May be useful during testing/debugging 591 */ 592 char *useFC = getenv("USE_J2D_FONTCONFIG"); 593 if (useFC != NULL && !strcmp(useFC, "no")) { 594 return NULL; 595 } 596 597 #ifdef __solaris__ 598 /* fontconfig is likely not properly configured on S8/S9 - skip it, 599 * although allow user to override this behaviour with an env. variable 600 * ie if USE_J2D_FONTCONFIG=yes then we skip this test. 601 * NB "4" is the length of a string which matches our patterns. 602 */ 603 if (useFC == NULL || strcmp(useFC, "yes")) { 604 if (sysinfo(SI_RELEASE, sysinfobuf, SYSINFOBUFSZ) == 4) { 605 if ((!strcmp(sysinfobuf, "5.8") || !strcmp(sysinfobuf, "5.9"))) { 606 return NULL; 607 } 608 } 609 } 610 #endif 611 612 #if defined(_AIX) 613 /* On AIX, fontconfig is not a standard package supported by IBM. 614 * instead it has to be installed from the "AIX Toolbox for Linux Applications" 615 * site http://www-03.ibm.com/systems/power/software/aix/linux/toolbox/alpha.html 616 * and will be installed under /opt/freeware/lib/libfontconfig.a. 617 * Notice that the archive contains the real 32- and 64-bit shared libraries. 618 * We first try to load 'libfontconfig.so' from the default library path in the 619 * case the user has installed a private version of the library and if that 620 * doesn't succeed, we try the version from /opt/freeware/lib/libfontconfig.a 621 */ 622 libfontconfig = dlopen("libfontconfig.so", RTLD_LOCAL|RTLD_LAZY); 623 if (libfontconfig == NULL) { 624 libfontconfig = dlopen("/opt/freeware/lib/libfontconfig.a(libfontconfig.so.1)", RTLD_MEMBER|RTLD_LOCAL|RTLD_LAZY); 625 if (libfontconfig == NULL) { 626 return NULL; 627 } 628 } 629 #else 630 /* 64 bit sparc should pick up the right version from the lib path. 631 * New features may be added to libfontconfig, this is expected to 632 * be compatible with old features, but we may need to start 633 * distinguishing the library version, to know whether to expect 634 * certain symbols - and functionality - to be available. 635 * Also add explicit search for .so.1 in case .so symlink doesn't exist. 636 */ 637 libfontconfig = dlopen(FONTCONFIG_DLL_VERSIONED, RTLD_LOCAL|RTLD_LAZY); 638 if (libfontconfig == NULL) { 639 libfontconfig = dlopen(FONTCONFIG_DLL, RTLD_LOCAL|RTLD_LAZY); 640 if (libfontconfig == NULL) { 641 return NULL; 642 } 643 } 644 #endif 645 646 /* Version 1.0 of libfontconfig crashes if HOME isn't defined in 647 * the environment. This should generally never happen, but we can't 648 * control it, and can't control the version of fontconfig, so iff 649 * its not defined we set it to an empty value which is sufficient 650 * to prevent a crash. I considered unsetting it before exit, but 651 * it doesn't appear to work on Solaris, so I will leave it set. 652 */ 653 homeEnv = getenv("HOME"); 654 if (homeEnv == NULL) { 655 putenv(homeEnvStr); 656 } 657 658 return libfontconfig; 659 } 660 661 typedef void* (FcFiniFuncType)(); 662 663 static void closeFontConfig(void* libfontconfig, jboolean fcFini) { 664 665 /* NB FcFini is not in (eg) the Solaris 10 version of fontconfig. Its not 666 * clear if this means we are really leaking resources in those cases 667 * but it seems we should call this function when its available. 668 * But since the Swing GTK code may be still accessing the lib, its probably 669 * safest for now to just let this "leak" rather than potentially 670 * concurrently free global data still in use by other code. 671 */ 672 #if 0 673 if (fcFini) { /* release resources */ 674 FcFiniFuncType FcFini = (FcFiniFuncType)dlsym(libfontconfig, "FcFini"); 675 676 if (FcFini != NULL) { 677 (*FcFini)(); 678 } 679 } 680 #endif 681 dlclose(libfontconfig); 682 } 683 684 typedef FcConfig* (*FcInitLoadConfigFuncType)(); 685 typedef FcPattern* (*FcPatternBuildFuncType)(FcPattern *orig, ...); 686 typedef FcObjectSet* (*FcObjectSetFuncType)(const char *first, ...); 687 typedef FcFontSet* (*FcFontListFuncType)(FcConfig *config, 688 FcPattern *p, 689 FcObjectSet *os); 690 typedef FcResult (*FcPatternGetBoolFuncType)(const FcPattern *p, 691 const char *object, 692 int n, 693 FcBool *b); 694 typedef FcResult (*FcPatternGetIntegerFuncType)(const FcPattern *p, 695 const char *object, 696 int n, 697 int *i); 698 typedef FcResult (*FcPatternGetStringFuncType)(const FcPattern *p, 699 const char *object, 700 int n, 701 FcChar8 ** s); 702 typedef FcChar8* (*FcStrDirnameFuncType)(const FcChar8 *file); 703 typedef void (*FcPatternDestroyFuncType)(FcPattern *p); 704 typedef void (*FcFontSetDestroyFuncType)(FcFontSet *s); 705 typedef FcPattern* (*FcNameParseFuncType)(const FcChar8 *name); 706 typedef FcBool (*FcPatternAddStringFuncType)(FcPattern *p, 707 const char *object, 708 const FcChar8 *s); 709 typedef void (*FcDefaultSubstituteFuncType)(FcPattern *p); 710 typedef FcBool (*FcConfigSubstituteFuncType)(FcConfig *config, 711 FcPattern *p, 712 FcMatchKind kind); 713 typedef FcPattern* (*FcFontMatchFuncType)(FcConfig *config, 714 FcPattern *p, 715 FcResult *result); 716 typedef FcFontSet* (*FcFontSetCreateFuncType)(); 717 typedef FcBool (*FcFontSetAddFuncType)(FcFontSet *s, FcPattern *font); 718 719 typedef FcResult (*FcPatternGetCharSetFuncType)(FcPattern *p, 720 const char *object, 721 int n, 722 FcCharSet **c); 723 typedef FcFontSet* (*FcFontSortFuncType)(FcConfig *config, 724 FcPattern *p, 725 FcBool trim, 726 FcCharSet **csp, 727 FcResult *result); 728 typedef FcCharSet* (*FcCharSetUnionFuncType)(const FcCharSet *a, 729 const FcCharSet *b); 730 typedef FcChar32 (*FcCharSetSubtractCountFuncType)(const FcCharSet *a, 731 const FcCharSet *b); 732 733 typedef int (*FcGetVersionFuncType)(); 734 735 typedef FcStrList* (*FcConfigGetCacheDirsFuncType)(FcConfig *config); 736 typedef FcChar8* (*FcStrListNextFuncType)(FcStrList *list); 737 typedef FcChar8* (*FcStrListDoneFuncType)(FcStrList *list); 738 739 static char **getFontConfigLocations() { 740 741 char **fontdirs; 742 int numdirs = 0; 743 FcInitLoadConfigFuncType FcInitLoadConfig; 744 FcPatternBuildFuncType FcPatternBuild; 745 FcObjectSetFuncType FcObjectSetBuild; 746 FcFontListFuncType FcFontList; 747 FcPatternGetStringFuncType FcPatternGetString; 748 FcStrDirnameFuncType FcStrDirname; 749 FcPatternDestroyFuncType FcPatternDestroy; 750 FcFontSetDestroyFuncType FcFontSetDestroy; 751 752 FcConfig *fontconfig; 753 FcPattern *pattern; 754 FcObjectSet *objset; 755 FcFontSet *fontSet; 756 FcStrList *strList; 757 FcChar8 *str; 758 int i, f, found, len=0; 759 char **fontPath; 760 761 void* libfontconfig = openFontConfig(); 762 763 if (libfontconfig == NULL) { 764 return NULL; 765 } 766 767 FcPatternBuild = 768 (FcPatternBuildFuncType)dlsym(libfontconfig, "FcPatternBuild"); 769 FcObjectSetBuild = 770 (FcObjectSetFuncType)dlsym(libfontconfig, "FcObjectSetBuild"); 771 FcFontList = 772 (FcFontListFuncType)dlsym(libfontconfig, "FcFontList"); 773 FcPatternGetString = 774 (FcPatternGetStringFuncType)dlsym(libfontconfig, "FcPatternGetString"); 775 FcStrDirname = 776 (FcStrDirnameFuncType)dlsym(libfontconfig, "FcStrDirname"); 777 FcPatternDestroy = 778 (FcPatternDestroyFuncType)dlsym(libfontconfig, "FcPatternDestroy"); 779 FcFontSetDestroy = 780 (FcFontSetDestroyFuncType)dlsym(libfontconfig, "FcFontSetDestroy"); 781 782 if (FcPatternBuild == NULL || 783 FcObjectSetBuild == NULL || 784 FcPatternGetString == NULL || 785 FcFontList == NULL || 786 FcStrDirname == NULL || 787 FcPatternDestroy == NULL || 788 FcFontSetDestroy == NULL) { /* problem with the library: return. */ 789 closeFontConfig(libfontconfig, JNI_FALSE); 790 return NULL; 791 } 792 793 /* Make calls into the fontconfig library to build a search for 794 * outline fonts, and to get the set of full file paths from the matches. 795 * This set is returned from the call to FcFontList(..) 796 * We allocate an array of char* pointers sufficient to hold all 797 * the matches + 1 extra which ensures there will be a NULL after all 798 * valid entries. 799 * We call FcStrDirname strip the file name from the path, and 800 * check if we have yet seen this directory. If not we add a pointer to 801 * it into our array of char*. Note that FcStrDirname returns newly 802 * allocated storage so we can use this in the return char** value. 803 * Finally we clean up, freeing allocated resources, and return the 804 * array of unique directories. 805 */ 806 pattern = (*FcPatternBuild)(NULL, FC_OUTLINE, FcTypeBool, FcTrue, NULL); 807 objset = (*FcObjectSetBuild)(FC_FILE, NULL); 808 fontSet = (*FcFontList)(NULL, pattern, objset); 809 if (fontSet == NULL) { 810 /* FcFontList() may return NULL if fonts are not installed. */ 811 fontdirs = NULL; 812 } else { 813 fontdirs = (char**)calloc(fontSet->nfont+1, sizeof(char*)); 814 for (f=0; f < fontSet->nfont; f++) { 815 FcChar8 *file; 816 FcChar8 *dir; 817 if ((*FcPatternGetString)(fontSet->fonts[f], FC_FILE, 0, &file) == 818 FcResultMatch) { 819 dir = (*FcStrDirname)(file); 820 found = 0; 821 for (i=0;i<numdirs; i++) { 822 if (strcmp(fontdirs[i], (char*)dir) == 0) { 823 found = 1; 824 break; 825 } 826 } 827 if (!found) { 828 fontdirs[numdirs++] = (char*)dir; 829 } else { 830 free((char*)dir); 831 } 832 } 833 } 834 /* Free fontset if one was returned */ 835 (*FcFontSetDestroy)(fontSet); 836 } 837 838 /* Free memory and close the ".so" */ 839 (*FcPatternDestroy)(pattern); 840 closeFontConfig(libfontconfig, JNI_TRUE); 841 return fontdirs; 842 } 843 844 /* These are copied from sun.awt.SunHints. 845 * Consider initialising them as ints using JNI for more robustness. 846 */ 847 #define TEXT_AA_OFF 1 848 #define TEXT_AA_ON 2 849 #define TEXT_AA_LCD_HRGB 4 850 #define TEXT_AA_LCD_HBGR 5 851 #define TEXT_AA_LCD_VRGB 6 852 #define TEXT_AA_LCD_VBGR 7 853 854 JNIEXPORT jint JNICALL 855 Java_sun_font_FontConfigManager_getFontConfigAASettings 856 (JNIEnv *env, jclass obj, jstring localeStr, jstring fcNameStr) { 857 858 FcNameParseFuncType FcNameParse; 859 FcPatternAddStringFuncType FcPatternAddString; 860 FcConfigSubstituteFuncType FcConfigSubstitute; 861 FcDefaultSubstituteFuncType FcDefaultSubstitute; 862 FcFontMatchFuncType FcFontMatch; 863 FcPatternGetBoolFuncType FcPatternGetBool; 864 FcPatternGetIntegerFuncType FcPatternGetInteger; 865 FcPatternDestroyFuncType FcPatternDestroy; 866 867 FcPattern *pattern, *matchPattern; 868 FcResult result; 869 FcBool antialias = FcFalse; 870 int rgba = 0; 871 const char *locale=NULL, *fcName=NULL; 872 void* libfontconfig; 873 874 if (fcNameStr == NULL || localeStr == NULL) { 875 return -1; 876 } 877 878 fcName = (*env)->GetStringUTFChars(env, fcNameStr, 0); 879 if (fcName == NULL) { 880 return -1; 881 } 882 locale = (*env)->GetStringUTFChars(env, localeStr, 0); 883 884 if ((libfontconfig = openFontConfig()) == NULL) { 885 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName); 886 if (locale) { 887 (*env)->ReleaseStringUTFChars (env, localeStr,(const char*)locale); 888 } 889 return -1; 890 } 891 892 FcNameParse = (FcNameParseFuncType)dlsym(libfontconfig, "FcNameParse"); 893 FcPatternAddString = 894 (FcPatternAddStringFuncType)dlsym(libfontconfig, "FcPatternAddString"); 895 FcConfigSubstitute = 896 (FcConfigSubstituteFuncType)dlsym(libfontconfig, "FcConfigSubstitute"); 897 FcDefaultSubstitute = (FcDefaultSubstituteFuncType) 898 dlsym(libfontconfig, "FcDefaultSubstitute"); 899 FcFontMatch = (FcFontMatchFuncType)dlsym(libfontconfig, "FcFontMatch"); 900 FcPatternGetBool = (FcPatternGetBoolFuncType) 901 dlsym(libfontconfig, "FcPatternGetBool"); 902 FcPatternGetInteger = (FcPatternGetIntegerFuncType) 903 dlsym(libfontconfig, "FcPatternGetInteger"); 904 FcPatternDestroy = 905 (FcPatternDestroyFuncType)dlsym(libfontconfig, "FcPatternDestroy"); 906 907 if (FcNameParse == NULL || 908 FcPatternAddString == NULL || 909 FcConfigSubstitute == NULL || 910 FcDefaultSubstitute == NULL || 911 FcFontMatch == NULL || 912 FcPatternGetBool == NULL || 913 FcPatternGetInteger == NULL || 914 FcPatternDestroy == NULL) { /* problem with the library: return. */ 915 916 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName); 917 if (locale) { 918 (*env)->ReleaseStringUTFChars (env, localeStr,(const char*)locale); 919 } 920 closeFontConfig(libfontconfig, JNI_FALSE); 921 return -1; 922 } 923 924 925 pattern = (*FcNameParse)((FcChar8 *)fcName); 926 if (locale != NULL) { 927 (*FcPatternAddString)(pattern, FC_LANG, (unsigned char*)locale); 928 } 929 (*FcConfigSubstitute)(NULL, pattern, FcMatchPattern); 930 (*FcDefaultSubstitute)(pattern); 931 matchPattern = (*FcFontMatch)(NULL, pattern, &result); 932 /* Perhaps should call FcFontRenderPrepare() here as some pattern 933 * elements might change as a result of that call, but I'm not seeing 934 * any difference in testing. 935 */ 936 if (matchPattern) { 937 (*FcPatternGetBool)(matchPattern, FC_ANTIALIAS, 0, &antialias); 938 (*FcPatternGetInteger)(matchPattern, FC_RGBA, 0, &rgba); 939 (*FcPatternDestroy)(matchPattern); 940 } 941 (*FcPatternDestroy)(pattern); 942 943 (*env)->ReleaseStringUTFChars (env, fcNameStr, (const char*)fcName); 944 if (locale) { 945 (*env)->ReleaseStringUTFChars (env, localeStr, (const char*)locale); 946 } 947 closeFontConfig(libfontconfig, JNI_TRUE); 948 949 if (antialias == FcFalse) { 950 return TEXT_AA_OFF; 951 } else if (rgba <= FC_RGBA_UNKNOWN || rgba >= FC_RGBA_NONE) { 952 return TEXT_AA_ON; 953 } else { 954 switch (rgba) { 955 case FC_RGBA_RGB : return TEXT_AA_LCD_HRGB; 956 case FC_RGBA_BGR : return TEXT_AA_LCD_HBGR; 957 case FC_RGBA_VRGB : return TEXT_AA_LCD_VRGB; 958 case FC_RGBA_VBGR : return TEXT_AA_LCD_VBGR; 959 default : return TEXT_AA_LCD_HRGB; // should not get here. 960 } 961 } 962 } 963 964 JNIEXPORT jint JNICALL 965 Java_sun_font_FontConfigManager_getFontConfigVersion 966 (JNIEnv *env, jclass obj) { 967 968 void* libfontconfig; 969 FcGetVersionFuncType FcGetVersion; 970 int version = 0; 971 972 if ((libfontconfig = openFontConfig()) == NULL) { 973 return 0; 974 } 975 976 FcGetVersion = (FcGetVersionFuncType)dlsym(libfontconfig, "FcGetVersion"); 977 978 if (FcGetVersion == NULL) { 979 closeFontConfig(libfontconfig, JNI_FALSE); 980 return 0; 981 } 982 version = (*FcGetVersion)(); 983 closeFontConfig(libfontconfig, JNI_FALSE); 984 985 return version; 986 } 987 988 989 JNIEXPORT void JNICALL 990 Java_sun_font_FontConfigManager_getFontConfig 991 (JNIEnv *env, jclass obj, jstring localeStr, jobject fcInfoObj, 992 jobjectArray fcCompFontArray, jboolean includeFallbacks) { 993 994 FcNameParseFuncType FcNameParse; 995 FcPatternAddStringFuncType FcPatternAddString; 996 FcConfigSubstituteFuncType FcConfigSubstitute; 997 FcDefaultSubstituteFuncType FcDefaultSubstitute; 998 FcFontMatchFuncType FcFontMatch; 999 FcPatternGetStringFuncType FcPatternGetString; 1000 FcPatternDestroyFuncType FcPatternDestroy; 1001 FcPatternGetCharSetFuncType FcPatternGetCharSet; 1002 FcFontSortFuncType FcFontSort; 1003 FcFontSetDestroyFuncType FcFontSetDestroy; 1004 FcCharSetUnionFuncType FcCharSetUnion; 1005 FcCharSetSubtractCountFuncType FcCharSetSubtractCount; 1006 FcGetVersionFuncType FcGetVersion; 1007 FcConfigGetCacheDirsFuncType FcConfigGetCacheDirs; 1008 FcStrListNextFuncType FcStrListNext; 1009 FcStrListDoneFuncType FcStrListDone; 1010 1011 int i, arrlen; 1012 jobject fcCompFontObj; 1013 jstring fcNameStr, jstr; 1014 const char *locale, *fcName; 1015 FcPattern *pattern; 1016 FcResult result; 1017 void* libfontconfig; 1018 jfieldID fcNameID, fcFirstFontID, fcAllFontsID, fcVersionID, fcCacheDirsID; 1019 jfieldID familyNameID, styleNameID, fullNameID, fontFileID; 1020 jmethodID fcFontCons; 1021 char* debugMinGlyphsStr = getenv("J2D_DEBUG_MIN_GLYPHS"); 1022 jclass fcInfoClass; 1023 jclass fcCompFontClass; 1024 jclass fcFontClass; 1025 1026 CHECK_NULL(fcInfoObj); 1027 CHECK_NULL(fcCompFontArray); 1028 1029 fcInfoClass = 1030 (*env)->FindClass(env, "sun/font/FontConfigManager$FontConfigInfo"); 1031 CHECK_NULL(fcInfoClass); 1032 fcCompFontClass = 1033 (*env)->FindClass(env, "sun/font/FontConfigManager$FcCompFont"); 1034 CHECK_NULL(fcCompFontClass); 1035 fcFontClass = 1036 (*env)->FindClass(env, "sun/font/FontConfigManager$FontConfigFont"); 1037 CHECK_NULL(fcFontClass); 1038 1039 1040 CHECK_NULL(fcVersionID = (*env)->GetFieldID(env, fcInfoClass, "fcVersion", "I")); 1041 CHECK_NULL(fcCacheDirsID = (*env)->GetFieldID(env, fcInfoClass, "cacheDirs", 1042 "[Ljava/lang/String;")); 1043 CHECK_NULL(fcNameID = (*env)->GetFieldID(env, fcCompFontClass, 1044 "fcName", "Ljava/lang/String;")); 1045 CHECK_NULL(fcFirstFontID = (*env)->GetFieldID(env, fcCompFontClass, "firstFont", 1046 "Lsun/font/FontConfigManager$FontConfigFont;")); 1047 CHECK_NULL(fcAllFontsID = (*env)->GetFieldID(env, fcCompFontClass, "allFonts", 1048 "[Lsun/font/FontConfigManager$FontConfigFont;")); 1049 CHECK_NULL(fcFontCons = (*env)->GetMethodID(env, fcFontClass, "<init>", "()V")); 1050 CHECK_NULL(familyNameID = (*env)->GetFieldID(env, fcFontClass, 1051 "familyName", "Ljava/lang/String;")); 1052 CHECK_NULL(styleNameID = (*env)->GetFieldID(env, fcFontClass, 1053 "styleStr", "Ljava/lang/String;")); 1054 CHECK_NULL(fullNameID = (*env)->GetFieldID(env, fcFontClass, 1055 "fullName", "Ljava/lang/String;")); 1056 CHECK_NULL(fontFileID = (*env)->GetFieldID(env, fcFontClass, 1057 "fontFile", "Ljava/lang/String;")); 1058 1059 if ((libfontconfig = openFontConfig()) == NULL) { 1060 return; 1061 } 1062 1063 FcNameParse = (FcNameParseFuncType)dlsym(libfontconfig, "FcNameParse"); 1064 FcPatternAddString = 1065 (FcPatternAddStringFuncType)dlsym(libfontconfig, "FcPatternAddString"); 1066 FcConfigSubstitute = 1067 (FcConfigSubstituteFuncType)dlsym(libfontconfig, "FcConfigSubstitute"); 1068 FcDefaultSubstitute = (FcDefaultSubstituteFuncType) 1069 dlsym(libfontconfig, "FcDefaultSubstitute"); 1070 FcFontMatch = (FcFontMatchFuncType)dlsym(libfontconfig, "FcFontMatch"); 1071 FcPatternGetString = 1072 (FcPatternGetStringFuncType)dlsym(libfontconfig, "FcPatternGetString"); 1073 FcPatternDestroy = 1074 (FcPatternDestroyFuncType)dlsym(libfontconfig, "FcPatternDestroy"); 1075 FcPatternGetCharSet = 1076 (FcPatternGetCharSetFuncType)dlsym(libfontconfig, 1077 "FcPatternGetCharSet"); 1078 FcFontSort = 1079 (FcFontSortFuncType)dlsym(libfontconfig, "FcFontSort"); 1080 FcFontSetDestroy = 1081 (FcFontSetDestroyFuncType)dlsym(libfontconfig, "FcFontSetDestroy"); 1082 FcCharSetUnion = 1083 (FcCharSetUnionFuncType)dlsym(libfontconfig, "FcCharSetUnion"); 1084 FcCharSetSubtractCount = 1085 (FcCharSetSubtractCountFuncType)dlsym(libfontconfig, 1086 "FcCharSetSubtractCount"); 1087 FcGetVersion = (FcGetVersionFuncType)dlsym(libfontconfig, "FcGetVersion"); 1088 1089 if (FcNameParse == NULL || 1090 FcPatternAddString == NULL || 1091 FcConfigSubstitute == NULL || 1092 FcDefaultSubstitute == NULL || 1093 FcFontMatch == NULL || 1094 FcPatternGetString == NULL || 1095 FcPatternDestroy == NULL || 1096 FcPatternGetCharSet == NULL || 1097 FcFontSetDestroy == NULL || 1098 FcCharSetUnion == NULL || 1099 FcGetVersion == NULL || 1100 FcCharSetSubtractCount == NULL) {/* problem with the library: return.*/ 1101 closeFontConfig(libfontconfig, JNI_FALSE); 1102 return; 1103 } 1104 1105 (*env)->SetIntField(env, fcInfoObj, fcVersionID, (*FcGetVersion)()); 1106 1107 /* Optionally get the cache dir locations. This isn't 1108 * available until v 2.4.x, but this is OK since on those later versions 1109 * we can check the time stamps on the cache dirs to see if we 1110 * are out of date. There are a couple of assumptions here. First 1111 * that the time stamp on the directory changes when the contents are 1112 * updated. Secondly that the locations don't change. The latter is 1113 * most likely if a new version of fontconfig is installed, but we also 1114 * invalidate the cache if we detect that. Arguably even that is "rare", 1115 * and most likely is tied to an OS upgrade which gets a new file anyway. 1116 */ 1117 FcConfigGetCacheDirs = 1118 (FcConfigGetCacheDirsFuncType)dlsym(libfontconfig, 1119 "FcConfigGetCacheDirs"); 1120 FcStrListNext = 1121 (FcStrListNextFuncType)dlsym(libfontconfig, "FcStrListNext"); 1122 FcStrListDone = 1123 (FcStrListDoneFuncType)dlsym(libfontconfig, "FcStrListDone"); 1124 if (FcStrListNext != NULL && FcStrListDone != NULL && 1125 FcConfigGetCacheDirs != NULL) { 1126 1127 FcStrList* cacheDirs; 1128 FcChar8* cacheDir; 1129 int cnt = 0; 1130 jobject cacheDirArray = 1131 (*env)->GetObjectField(env, fcInfoObj, fcCacheDirsID); 1132 int max = (*env)->GetArrayLength(env, cacheDirArray); 1133 1134 cacheDirs = (*FcConfigGetCacheDirs)(NULL); 1135 if (cacheDirs != NULL) { 1136 while ((cnt < max) && (cacheDir = (*FcStrListNext)(cacheDirs))) { 1137 jstr = (*env)->NewStringUTF(env, (const char*)cacheDir); 1138 JNU_CHECK_EXCEPTION(env); 1139 1140 (*env)->SetObjectArrayElement(env, cacheDirArray, cnt++, jstr); 1141 } 1142 (*FcStrListDone)(cacheDirs); 1143 } 1144 } 1145 1146 locale = (*env)->GetStringUTFChars(env, localeStr, 0); 1147 if (locale == NULL) { 1148 (*env)->ExceptionClear(env); 1149 JNU_ThrowOutOfMemoryError(env, "Could not create locale"); 1150 return; 1151 } 1152 1153 arrlen = (*env)->GetArrayLength(env, fcCompFontArray); 1154 for (i=0; i<arrlen; i++) { 1155 FcFontSet* fontset; 1156 int fn, j, fontCount, nfonts; 1157 unsigned int minGlyphs; 1158 FcChar8 **family, **styleStr, **fullname, **file; 1159 jarray fcFontArr = NULL; 1160 FcCharSet *unionCharset = NULL; 1161 1162 fcCompFontObj = (*env)->GetObjectArrayElement(env, fcCompFontArray, i); 1163 fcNameStr = 1164 (jstring)((*env)->GetObjectField(env, fcCompFontObj, fcNameID)); 1165 fcName = (*env)->GetStringUTFChars(env, fcNameStr, 0); 1166 if (fcName == NULL) { 1167 continue; 1168 } 1169 pattern = (*FcNameParse)((FcChar8 *)fcName); 1170 (*env)->ReleaseStringUTFChars(env, fcNameStr, (const char*)fcName); 1171 if (pattern == NULL) { 1172 closeFontConfig(libfontconfig, JNI_FALSE); 1173 return; 1174 } 1175 1176 /* locale may not usually be necessary as fontconfig appears to apply 1177 * this anyway based on the user's environment. However we want 1178 * to use the value of the JDK startup locale so this should take 1179 * care of it. 1180 */ 1181 if (locale != NULL) { 1182 (*FcPatternAddString)(pattern, FC_LANG, (unsigned char*)locale); 1183 } 1184 (*FcConfigSubstitute)(NULL, pattern, FcMatchPattern); 1185 (*FcDefaultSubstitute)(pattern); 1186 fontset = (*FcFontSort)(NULL, pattern, FcTrue, NULL, &result); 1187 if (fontset == NULL) { 1188 (*FcPatternDestroy)(pattern); 1189 closeFontConfig(libfontconfig, JNI_FALSE); 1190 return; 1191 } 1192 1193 /* fontconfig returned us "nfonts". If we are just getting the 1194 * first font, we set nfont to zero. Otherwise we use "nfonts". 1195 * Next create separate C arrrays of length nfonts for family file etc. 1196 * Inspect the returned fonts and the ones we like (adds enough glyphs) 1197 * are added to the arrays and we increment 'fontCount'. 1198 */ 1199 nfonts = fontset->nfont; 1200 family = (FcChar8**)calloc(nfonts, sizeof(FcChar8*)); 1201 styleStr = (FcChar8**)calloc(nfonts, sizeof(FcChar8*)); 1202 fullname = (FcChar8**)calloc(nfonts, sizeof(FcChar8*)); 1203 file = (FcChar8**)calloc(nfonts, sizeof(FcChar8*)); 1204 if (family == NULL || styleStr == NULL || 1205 fullname == NULL || file == NULL) { 1206 if (family != NULL) { 1207 free(family); 1208 } 1209 if (styleStr != NULL) { 1210 free(styleStr); 1211 } 1212 if (fullname != NULL) { 1213 free(fullname); 1214 } 1215 if (file != NULL) { 1216 free(file); 1217 } 1218 (*FcPatternDestroy)(pattern); 1219 (*FcFontSetDestroy)(fontset); 1220 closeFontConfig(libfontconfig, JNI_FALSE); 1221 return; 1222 } 1223 fontCount = 0; 1224 minGlyphs = 20; 1225 if (debugMinGlyphsStr != NULL) { 1226 int val = minGlyphs; 1227 sscanf(debugMinGlyphsStr, "%5d", &val); 1228 if (val >= 0 && val <= 65536) { 1229 minGlyphs = val; 1230 } 1231 } 1232 1233 for (j=0; j<nfonts; j++) { 1234 FcPattern *fontPattern = fontset->fonts[j]; 1235 FcChar8 *fontformat; 1236 FcCharSet *charset = NULL; 1237 1238 fontformat = NULL; 1239 (*FcPatternGetString)(fontPattern, FC_FONTFORMAT, 0, &fontformat); 1240 /* We only want TrueType fonts but some Linuxes still depend 1241 * on Type 1 fonts for some Locale support, so we'll allow 1242 * them there. 1243 */ 1244 if (fontformat != NULL 1245 && (strcmp((char*)fontformat, "TrueType") != 0) 1246 #if defined(__linux__) || defined(_AIX) 1247 && (strcmp((char*)fontformat, "Type 1") != 0) 1248 #endif 1249 ) { 1250 continue; 1251 } 1252 result = (*FcPatternGetCharSet)(fontPattern, 1253 FC_CHARSET, 0, &charset); 1254 if (result != FcResultMatch) { 1255 free(family); 1256 free(fullname); 1257 free(styleStr); 1258 free(file); 1259 (*FcPatternDestroy)(pattern); 1260 (*FcFontSetDestroy)(fontset); 1261 closeFontConfig(libfontconfig, JNI_FALSE); 1262 return; 1263 } 1264 1265 /* We don't want 20 or 30 fonts, so once we hit 10 fonts, 1266 * then require that they really be adding value. Too many 1267 * adversely affects load time for minimal value-add. 1268 * This is still likely far more than we've had in the past. 1269 */ 1270 if (j==10) { 1271 minGlyphs = 50; 1272 } 1273 if (unionCharset == NULL) { 1274 unionCharset = charset; 1275 } else { 1276 if ((*FcCharSetSubtractCount)(charset, unionCharset) 1277 > minGlyphs) { 1278 unionCharset = (* FcCharSetUnion)(unionCharset, charset); 1279 } else { 1280 continue; 1281 } 1282 } 1283 1284 fontCount++; // found a font we will use. 1285 (*FcPatternGetString)(fontPattern, FC_FILE, 0, &file[j]); 1286 (*FcPatternGetString)(fontPattern, FC_FAMILY, 0, &family[j]); 1287 (*FcPatternGetString)(fontPattern, FC_STYLE, 0, &styleStr[j]); 1288 (*FcPatternGetString)(fontPattern, FC_FULLNAME, 0, &fullname[j]); 1289 if (!includeFallbacks) { 1290 break; 1291 } 1292 if (fontCount == 254) { 1293 break; // CompositeFont will only use up to 254 slots from here. 1294 } 1295 } 1296 1297 /* Once we get here 'fontCount' is the number of returned fonts 1298 * we actually want to use, so we create 'fcFontArr' of that length. 1299 * The non-null entries of "family[]" etc are those fonts. 1300 * Then loop again over all nfonts adding just those non-null ones 1301 * to 'fcFontArr'. If its null (we didn't want the font) 1302 * then we don't enter the main body. 1303 * So we should never get more than 'fontCount' entries. 1304 */ 1305 if (includeFallbacks) { 1306 fcFontArr = 1307 (*env)->NewObjectArray(env, fontCount, fcFontClass, NULL); 1308 if (IS_NULL(fcFontArr)) { 1309 free(family); 1310 free(fullname); 1311 free(styleStr); 1312 free(file); 1313 (*FcPatternDestroy)(pattern); 1314 (*FcFontSetDestroy)(fontset); 1315 closeFontConfig(libfontconfig, JNI_FALSE); 1316 return; 1317 } 1318 (*env)->SetObjectField(env,fcCompFontObj, fcAllFontsID, fcFontArr); 1319 } 1320 fn=0; 1321 1322 for (j=0;j<nfonts;j++) { 1323 if (family[j] != NULL) { 1324 jobject fcFont = 1325 (*env)->NewObject(env, fcFontClass, fcFontCons); 1326 if (IS_NULL(fcFont)) break; 1327 jstr = (*env)->NewStringUTF(env, (const char*)family[j]); 1328 if (IS_NULL(jstr)) break; 1329 (*env)->SetObjectField(env, fcFont, familyNameID, jstr); 1330 if (file[j] != NULL) { 1331 jstr = (*env)->NewStringUTF(env, (const char*)file[j]); 1332 if (IS_NULL(jstr)) break; 1333 (*env)->SetObjectField(env, fcFont, fontFileID, jstr); 1334 } 1335 if (styleStr[j] != NULL) { 1336 jstr = (*env)->NewStringUTF(env, (const char*)styleStr[j]); 1337 if (IS_NULL(jstr)) break; 1338 (*env)->SetObjectField(env, fcFont, styleNameID, jstr); 1339 } 1340 if (fullname[j] != NULL) { 1341 jstr = (*env)->NewStringUTF(env, (const char*)fullname[j]); 1342 if (IS_NULL(jstr)) break; 1343 (*env)->SetObjectField(env, fcFont, fullNameID, jstr); 1344 } 1345 if (fn==0) { 1346 (*env)->SetObjectField(env, fcCompFontObj, 1347 fcFirstFontID, fcFont); 1348 } 1349 if (includeFallbacks) { 1350 (*env)->SetObjectArrayElement(env, fcFontArr, fn++,fcFont); 1351 } else { 1352 break; 1353 } 1354 } 1355 } 1356 (*FcFontSetDestroy)(fontset); 1357 (*FcPatternDestroy)(pattern); 1358 free(family); 1359 free(styleStr); 1360 free(fullname); 1361 free(file); 1362 } 1363 1364 /* release resources and close the ".so" */ 1365 1366 if (locale) { 1367 (*env)->ReleaseStringUTFChars (env, localeStr, (const char*)locale); 1368 } 1369 closeFontConfig(libfontconfig, JNI_TRUE); 1370 }