File: gdft.c

package info (click to toggle)
libgd2 2.3.0-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, sid
  • size: 10,360 kB
  • sloc: ansic: 48,194; sh: 5,603; cpp: 1,298; makefile: 323; perl: 225; tcl: 45
file content (1911 lines) | stat: -rw-r--r-- 53,822 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
/********************************************/
/* gd interface to freetype library         */
/*                                          */
/* John Ellson   ellson@graphviz.org        */
/********************************************/


/**
 * File: FreeType font rendering
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "gd.h"
#include "gdhelpers.h"
#include "gd_intern.h"

/* 2.0.10: WIN32, not MSWIN32 */
#if !defined(_WIN32) && !defined(_WIN32_WCE)
#include <unistd.h>
#elif defined(_WIN32_WCE)
#include <wce_stdlib.h> /* getenv() */
#include <wce_unistd.h> /* access() */
#define getenv wceex_getenv
#define access wceex_access
#else /* _WIN32_WCE */
#include <io.h>
#ifndef R_OK
#define R_OK 04			/* Needed in Windows */
#endif
#endif

/* number of antialised colors for indexed bitmaps */
#define GD_NUMCOLORS 8

#ifdef HAVE_LIBFONTCONFIG
static int fontConfigFlag = 0;

/* translate a fontconfig fontpattern into a fontpath.
	return NULL if OK, else return error string */
static char *font_pattern(char **fontpath, char *fontpattern);
#endif

#ifdef HAVE_LIBFREETYPE
#include "entities.h"
static char *font_path(char **fontpath, char *name_list);
#endif

/* 2.0.30: move these up here so we can build correctly without freetype
	but with fontconfig */

/*
 * The character (space) used to separate alternate fonts in the
 * fontlist parameter to gdImageStringFT. 2.0.18: space was a
 * poor choice for this.
 */
#define LISTSEPARATOR ";"

/*
 * DEFAULT_FONTPATH and PATHSEPARATOR are host type dependent and
 * are normally set by configure in config.h.  These are just
 * some last resort values that might match some Un*x system
 * if building this version of gd separate from graphviz.
 */

#ifndef DEFAULT_FONTPATH
#  if defined(_WIN32)
#    define DEFAULT_FONTPATH "C:\\WINDOWS\\FONTS;C:\\WINNT\\FONTS"
#  elif defined(__APPLE__) || (defined(__MWERKS__) && defined(macintosh))
#    define DEFAULT_FONTPATH "/usr/share/fonts/truetype:/System/Library/Fonts:/Library/Fonts"
#  else
   /* default fontpath for unix systems  - whatever happened to standards ! */
#    define DEFAULT_FONTPATH "/usr/X11R6/lib/X11/fonts/TrueType:/usr/X11R6/lib/X11/fonts/truetype:/usr/X11R6/lib/X11/fonts/TTF:/usr/share/fonts/TrueType:/usr/share/fonts/truetype:/usr/openwin/lib/X11/fonts/TrueType:/usr/X11R6/lib/X11/fonts/Type1:/usr/lib/X11/fonts/Type1:/usr/openwin/lib/X11/fonts/Type1"
#  endif
#endif

#ifndef PATHSEPARATOR
#  if defined(_WIN32)
#    define PATHSEPARATOR ";"
#  else
#    define PATHSEPARATOR ":"
#  endif
#endif


#ifndef TRUE
#define FALSE 0
#define TRUE !FALSE
#endif

/**
 * Function: gdImageStringTTF
 *
 * Alias of <gdImageStringFT>.
 */
BGD_DECLARE(char *) gdImageStringTTF (gdImage * im, int *brect, int fg, const char *fontlist,
                                      double ptsize, double angle, int x, int y, const char *string)
{
	/* 2.0.6: valid return */
	return gdImageStringFT (im, brect, fg, fontlist, ptsize,
	                        angle, x, y, string);
}

#ifndef HAVE_LIBFREETYPE
BGD_DECLARE(char *) gdImageStringFTEx (gdImage * im, int *brect, int fg, const char *fontlist,
                                       double ptsize, double angle, int x, int y, const char *string,
                                       gdFTStringExtraPtr strex)
{
	(void)im;
	(void)brect;
	(void)fg;
	(void)fontlist;
	(void)ptsize;
	(void)angle;
	(void)x;
	(void)y;
	(void)string;
	(void)strex;

	return "libgd was not built with FreeType font support\n";
}

BGD_DECLARE(char *) gdImageStringFT (gdImage * im, int *brect, int fg, const char *fontlist,
                                     double ptsize, double angle, int x, int y, const char *string)
{
	(void)im;
	(void)brect;
	(void)fg;
	(void)fontlist;
	(void)ptsize;
	(void)angle;
	(void)x;
	(void)y;
	(void)string;

	return "libgd was not built with FreeType font support\n";
}
#else

#include "gdcache.h"
/* 2.0.16 Christophe Thomas: starting with FreeType 2.1.6, this is
  mandatory, and it has been supported for a long while. */
#ifdef HAVE_FT2BUILD_H
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H
#include FT_SIZES_H
#else
#include <freetype/freetype.h>
#include <freetype/ftglyph.h>
#include <freetype/ftsizes.h>
#endif

/* number of fonts cached before least recently used is replaced */
#define FONTCACHESIZE 6

/* number of antialias color lookups cached */
#define TWEENCOLORCACHESIZE 32

/*
 * Line separation as a factor of font height.
 *      No space between if LINESPACE = 1.00
 *      Line separation will be rounded up to next pixel row.
 */
#define LINESPACE 1.05

typedef struct {
	char *fontlist;		/* key */
	int flags;			/* key */
	char *fontpath;
	FT_Library *library;
	FT_Face face;
}
font_t;

typedef struct {
	const char *fontlist;		/* key */
	int flags;			/* key */
	FT_Library *library;
}
fontkey_t;

typedef struct {
	int pixel;			/* key */
	int bgcolor;			/* key */
	int fgcolor;			/* key *//* -ve means no antialias */
	gdImagePtr im;		/* key */
	int tweencolor;
}
tweencolor_t;

typedef struct {
	int pixel;			/* key */
	int bgcolor;			/* key */
	int fgcolor;			/* key *//* -ve means no antialias */
	gdImagePtr im;		/* key */
}
tweencolorkey_t;

/********************************************************************
 * gdTcl_UtfToUniChar is borrowed from Tcl ...
 */
/*
 * tclUtf.c --
 *
 *      Routines for manipulating UTF-8 strings.
 *
 * Copyright (c) 1997-1998 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * SCCS: @(#) tclUtf.c 1.25 98/01/28 18:02:43
 */

/*
 *---------------------------------------------------------------------------
 *
 * gdTcl_UtfToUniChar --
 *
 *      Extract the Tcl_UniChar represented by the UTF-8 string.  Bad
 *      UTF-8 sequences are converted to valid Tcl_UniChars and processing
 *      continues.  Equivalent to Plan 9 chartorune().
 *
 *      The caller must ensure that the source buffer is long enough that
 *      this routine does not run off the end and dereference non-existent
 *      memory looking for trail bytes.  If the source buffer is known to
 *      be '\0' terminated, this cannot happen.  Otherwise, the caller
 *      should call Tcl_UtfCharComplete() before calling this routine to
 *      ensure that enough bytes remain in the string.
 *
 * Results:
 *      *chPtr is filled with the Tcl_UniChar, and the return value is the
 *      number of bytes from the UTF-8 string that were consumed.
 *
 * Side effects:
 *      None.
 *
 *---------------------------------------------------------------------------
 */

#ifdef JISX0208
#include "jisx0208.h"
#endif

static int comp_entities(const void *e1, const void *e2)
{
	struct entities_s *en1 = (struct entities_s *) e1;
	struct entities_s *en2 = (struct entities_s *) e2;
	return strcmp(en1->name, en2->name);
}

extern int any2eucjp (char *, const char *, unsigned int);

/* Persistent font cache until explicitly cleared */
/* Fonts can be used across multiple images */

/* 2.0.16: thread safety (the font cache is shared) */
gdMutexDeclare (gdFontCacheMutex);
static gdCache_head_t *fontCache;
static FT_Library library;

#define Tcl_UniChar int
#define TCL_UTF_MAX 3
static int
gdTcl_UtfToUniChar (const char *str, Tcl_UniChar * chPtr)
/* str is the UTF8 next character pointer */
/* chPtr is the int for the result */
{
	int byte;
	char entity_name_buf[ENTITY_NAME_LENGTH_MAX+1];
	char *p;
	struct entities_s key, *res;

	/* HTML4.0 entities in decimal form, e.g. &#197; */
	/*           or in hexadecimal form, e.g. &#x6C34; */
	byte = *((unsigned char *) str);
	if (byte == '&') {
		int i, n = 0;

		byte = *((unsigned char *) (str + 1));
		if (byte == '#') {
			byte = *((unsigned char *) (str + 2));
			if (byte == 'x' || byte == 'X') {
				for (i = 3; i < 8; i++) {
					byte = *((unsigned char *) (str + i));
					if (byte >= 'A' && byte <= 'F')
						byte = byte - 'A' + 10;
					else if (byte >= 'a' && byte <= 'f')
						byte = byte - 'a' + 10;
					else if (byte >= '0' && byte <= '9')
						byte = byte - '0';
					else
						break;
					n = (n * 16) + byte;
				}
			} else {
				for (i = 2; i < 8; i++) {
					byte = *((unsigned char *) (str + i));
					if (byte >= '0' && byte <= '9')
						n = (n * 10) + (byte - '0');
					else
						break;
				}
			}
			if (byte == ';') {
				*chPtr = (Tcl_UniChar) n;
				return ++i;
			}
		} else {
			key.name = p = entity_name_buf;
			for (i = 1; i <= 1 + ENTITY_NAME_LENGTH_MAX; i++) {
				byte = *((unsigned char *) (str + i));
				if (byte == '\0')
					break;
				if (byte == ';') {
					*p++ = '\0';
					res = bsearch(&key, entities, NR_OF_ENTITIES,
					              sizeof(entities[0]), *comp_entities);
					if (res) {
						*chPtr = (Tcl_UniChar) res->value;
						return ++i;
					}
					break;
				}
				*p++ = byte;
			}
		}
	}

	/*
	 * Unroll 1 to 3 byte UTF-8 sequences, use loop to handle longer ones.
	 */

	byte = *((unsigned char *) str);
#ifdef JISX0208
	if (0xA1 <= byte && byte <= 0xFE) {
		int ku, ten;

		ku = (byte & 0x7F) - 0x20;
		ten = (str[1] & 0x7F) - 0x20;
		if ((ku < 1 || ku > 92) || (ten < 1 || ten > 94)) {
			*chPtr = (Tcl_UniChar) byte;
			return 1;
		}

		*chPtr = (Tcl_UniChar) UnicodeTbl[ku - 1][ten - 1];
		return 2;
	} else
#endif /* JISX0208 */
		if (byte < 0xC0) {
			/*
			 * Handles properly formed UTF-8 characters between
			 * 0x01 and 0x7F.  Also treats \0 and naked trail
			 * bytes 0x80 to 0xBF as valid characters representing
			 * themselves.
			 */

			*chPtr = (Tcl_UniChar) byte;
			return 1;
		} else if (byte < 0xE0) {
			if ((str[1] & 0xC0) == 0x80) {
				/*
				 * Two-byte-character lead-byte followed
				 * by a trail-byte.
				 */

				*chPtr = (Tcl_UniChar) (((byte & 0x1F) << 6) | (str[1] & 0x3F));
				return 2;
			}
			/*
			 * A two-byte-character lead-byte not followed by trail-byte
			 * represents itself.
			 */

			*chPtr = (Tcl_UniChar) byte;
			return 1;
		} else if (byte < 0xF0) {
			if (((str[1] & 0xC0) == 0x80) && ((str[2] & 0xC0) == 0x80)) {
				/*
				 * Three-byte-character lead byte followed by
				 * two trail bytes.
				 */

				*chPtr = (Tcl_UniChar) (((byte & 0x0F) << 12)
				                        | ((str[1] & 0x3F) << 6) | (str[2] & 0x3F));
				return 3;
			}
			/*
			 * A three-byte-character lead-byte not followed by
			 * two trail-bytes represents itself.
			 */

			*chPtr = (Tcl_UniChar) byte;
			return 1;
		}
#if TCL_UTF_MAX > 3
		else {
			int ch, total, trail;

			total = totalBytes[byte];
			trail = total - 1;
			if (trail > 0) {
				ch = byte & (0x3F >> trail);
				do {
					str++;
					if ((*str & 0xC0) != 0x80) {
						*chPtr = byte;
						return 1;
					}
					ch <<= 6;
					ch |= (*str & 0x3F);
					trail--;
				} while (trail > 0);
				*chPtr = ch;
				return total;
			}
		}
#endif

	*chPtr = (Tcl_UniChar) byte;
	return 1;
}

#ifdef HAVE_LIBRAQM
#include <raqm.h>
#endif

typedef struct {
	unsigned int index;
	FT_Pos x_advance;
	FT_Pos x_offset;
	FT_Pos y_offset;
	uint32_t cluster;
} glyphInfo;

static ssize_t
textLayout(uint32_t *text, int len,
		FT_Face face, gdFTStringExtraPtr strex,
		glyphInfo **glyph_info)
{
	size_t count;
	glyphInfo *info;

#ifdef HAVE_LIBRAQM
	size_t i;
	raqm_glyph_t *glyphs;
	raqm_t *rq = raqm_create ();

	if (!rq || !raqm_set_text (rq, text, len) ||
		!raqm_set_freetype_face (rq, face) ||
		!raqm_set_par_direction (rq, RAQM_DIRECTION_DEFAULT) ||
		!raqm_layout (rq)) {
		raqm_destroy (rq);
		return -1;
	}

	glyphs = raqm_get_glyphs (rq, &count);
	if (!glyphs) {
		raqm_destroy (rq);
		return -1;
	}

	info = (glyphInfo*) gdMalloc (sizeof (glyphInfo) * count);
	if (!info) {
		raqm_destroy (rq);
		return -1;
	}

	for (i = 0; i < count; i++) {
		info[i].index = glyphs[i].index;
		info[i].x_offset = glyphs[i].x_offset;
		info[i].y_offset = glyphs[i].y_offset;
		info[i].x_advance = glyphs[i].x_advance;
		info[i].cluster = glyphs[i].cluster;
	}

	raqm_destroy (rq);
#else
	FT_UInt glyph_index = 0, previous = 0;
	FT_Vector delta;
	FT_Error err;
	info = (glyphInfo*) gdMalloc (sizeof (glyphInfo) * len);
	if (!info) {
		return -1;
	}
	for (count = 0; count < len; count++) {
		/* Convert character code to glyph index */
		glyph_index = FT_Get_Char_Index (face, text[count]);

		/* retrieve kerning distance */
		if (! (strex && (strex->flags & gdFTEX_DISABLE_KERNING))
			&& ! FT_IS_FIXED_WIDTH(face)
			&& FT_HAS_KERNING(face)
			&& previous
			&& glyph_index)
			FT_Get_Kerning (face, previous, glyph_index, ft_kerning_default, &delta);
		else
			delta.x = delta.y = 0;

		err = FT_Load_Glyph (face, glyph_index, FT_LOAD_DEFAULT);
		if (err) {
			gdFree (info);
			return -1;
		}
		info[count].index = glyph_index;
		info[count].x_offset = 0;
		info[count].y_offset = 0;
		if (delta.x != 0)
			info[count - 1].x_advance += delta.x;
		info[count].x_advance = face->glyph->metrics.horiAdvance;
		info[count].cluster = count;

		/* carriage returns or newlines */
		if (text[count] == '\r' || text[count] == '\n')
			previous = 0;	/* clear kerning flag */
		else
			previous = glyph_index;
	}
#endif

	*glyph_info = info;
	return count <= SSIZE_MAX ? count : -1;
}

/********************************************************************/
/* font cache functions                                             */

static int
fontTest (void *element, void *key)
{
	font_t *a = (font_t *) element;
	fontkey_t *b = (fontkey_t *) key;

	return (strcmp (a->fontlist, b->fontlist) == 0 && a->flags == b->flags);
}

#ifdef HAVE_LIBFONTCONFIG
static int useFontConfig(int flag)
{
	if (fontConfigFlag) {
		return (!(flag & gdFTEX_FONTPATHNAME));
	}
	return flag & gdFTEX_FONTCONFIG;
}
#endif

static void *
fontFetch (char **error, void *key)
{
	font_t *a;
	fontkey_t *b = (fontkey_t *) key;
	char *suffix;
	FT_Error err;
	const unsigned int b_font_list_len = strlen(b->fontlist);

	*error = NULL;

	a = (font_t *) gdMalloc (sizeof (font_t));
	if (!a) {
		return NULL;
	}

	a->fontlist = (char *) gdMalloc(b_font_list_len + 1);
	if (a->fontlist == NULL) {
		gdFree(a);
		return "could not alloc full list of fonts";
	}
	memcpy(a->fontlist, b->fontlist, b_font_list_len);
	a->fontlist[b_font_list_len] = 0;

	a->flags = b->flags;
	a->library = b->library;
	a->fontpath = NULL;

#ifdef HAVE_LIBFONTCONFIG
	if (!useFontConfig(b->flags))
		*error = font_path(&(a->fontpath), a->fontlist);
	else
		*error = font_pattern(&(a->fontpath), a->fontlist);
#else
	*error = font_path(&(a->fontpath), a->fontlist);
#endif /* HAVE_LIBFONTCONFIG */
	if (*error || !a->fontpath || !a->fontpath[0]) {
		gdFree(a->fontlist);
		if (a->fontpath)
			free(a->fontpath);
		gdFree(a);

		if (!*error)
			*error = "font_path() returned an empty font pathname";

		return NULL;
	}

	err = FT_New_Face(*b->library, a->fontpath, 0, &a->face);

	/* Read kerning metrics for Postscript fonts. */
	if (!err
	        && ((suffix = strstr(a->fontpath, ".pfa"))
	            || (suffix = strstr(a->fontpath, ".pfb")))
	        && ((strcpy(suffix, ".afm") && (access(a->fontpath, R_OK) == 0))
	            || (strcpy(suffix, ".pfm") && (access(a->fontpath, R_OK) == 0)))) {
		err = FT_Attach_File(a->face, a->fontpath);
	}

	if (err) {
		gdFree (a->fontlist);
		free(a->fontpath);
		gdFree(a);
		*error = "Could not read font";
		return NULL;
	}

	return (void *) a;
}

static void
fontRelease (void *element)
{
	font_t *a = (font_t *) element;

	FT_Done_Face (a->face);
	gdFree (a->fontlist);
	gdFree (a->fontpath);
	gdFree ((char *) element);
}

/********************************************************************/
/* tweencolor cache functions                                            */

static int
tweenColorTest (void *element, void *key)
{
	tweencolor_t *a = (tweencolor_t *) element;
	tweencolorkey_t *b = (tweencolorkey_t *) key;

	return (a->pixel == b->pixel
	        && a->bgcolor == b->bgcolor
	        && a->fgcolor == b->fgcolor && a->im == b->im);
}

/*
 * Computes a color in im's color table that is part way between
 * the background and foreground colors proportional to the gray
 * pixel value in the range 0-GD_NUMCOLORS. The fg and bg colors must already
 * be in the color table for palette images. For truecolor images the
 * returned value simply has an alpha component and gdImageAlphaBlend
 * does the work so that text can be alpha blended across a complex
 * background (TBB; and for real in 2.0.2).
 */
static void *
tweenColorFetch (char **error, void *key)
{
	tweencolor_t *a;
	tweencolorkey_t *b = (tweencolorkey_t *) key;
	int pixel, npixel, bg, fg;
	gdImagePtr im;

	(void)error;

	a = (tweencolor_t *) gdMalloc (sizeof (tweencolor_t));
	if (!a) {
		return NULL;
	}

	pixel = a->pixel = b->pixel;
	bg = a->bgcolor = b->bgcolor;
	fg = a->fgcolor = b->fgcolor;
	im = a->im = b->im;

	/* if fg is specified by a negative color idx, then don't antialias */
	if (fg < 0) {
		if ((pixel + pixel) >= GD_NUMCOLORS)
			a->tweencolor = -fg;
		else
			a->tweencolor = bg;
	} else {
		npixel = GD_NUMCOLORS - pixel;
		if (im->trueColor) {
			/* 2.0.1: use gdImageSetPixel to do the alpha blending work,
			   or to just store the alpha level. All we have to do here
			   is incorporate our knowledge of the percentage of this
			   pixel that is really "lit" by pushing the alpha value
			   up toward transparency in edge regions. */
			a->tweencolor = gdTrueColorAlpha (gdTrueColorGetRed (fg),
			                                  gdTrueColorGetGreen (fg),
			                                  gdTrueColorGetBlue (fg),
			                                  gdAlphaMax -
			                                  (gdTrueColorGetAlpha (fg) *
			                                   pixel / GD_NUMCOLORS));
		} else {
			a->tweencolor = gdImageColorResolve (im,
			                                     (pixel * im->red[fg] +
			                                      npixel * im->red[bg]) /
			                                     GD_NUMCOLORS,
			                                     (pixel * im->green[fg] +
			                                      npixel * im->green[bg]) /
			                                     GD_NUMCOLORS,
			                                     (pixel * im->blue[fg] +
			                                      npixel * im->blue[bg]) /
			                                     GD_NUMCOLORS);
		}
	}
	return (void *) a;
}

static void
tweenColorRelease (void *element)
{
	gdFree ((char *) element);
}

/* draw_bitmap - transfers glyph bitmap to GD image */
static char *
gdft_draw_bitmap (gdCache_head_t * tc_cache, gdImage * im, int fg,
                  FT_Bitmap bitmap, int pen_x, int pen_y)
{
	unsigned char *pixel = NULL;
	int *tpixel = NULL;
	int opixel;
	int x, y, row, col, pc, pcr;

	tweencolor_t *tc_elem;
	tweencolorkey_t tc_key;

	/* copy to image, mapping colors */
	tc_key.fgcolor = fg;
	tc_key.im = im;
	/* Truecolor version; does not require the cache */
	if (im->trueColor) {
		for (row = 0; row < bitmap.rows; row++) {
			pc = row * bitmap.pitch;
			pcr = pc;
			y = pen_y + row;
			/* clip if out of bounds */
			/* 2.0.16: clipping rectangle, not image bounds */
			if ((y > im->cy2) || (y < im->cy1))
				continue;
			for (col = 0; col < bitmap.width; col++, pc++) {
				int level;
				if (bitmap.pixel_mode == ft_pixel_mode_grays) {
					/*
					 * Scale to 128 levels of alpha for gd use.
					 * alpha 0 is opacity, so be sure to invert at the end
					 */
					level = (bitmap.buffer[pc] * gdAlphaMax /
					         (bitmap.num_grays - 1));
				} else if (bitmap.pixel_mode == ft_pixel_mode_mono) {
					/* 2.0.5: mode_mono fix from Giuliano Pochini */
					level =
					    ((bitmap.
					      buffer[(col >> 3) +
					             pcr]) & (1 << (~col & 0x07))) ?
					    gdAlphaTransparent : gdAlphaOpaque;
				} else {
					return "Unsupported ft_pixel_mode";
				}
				if (level == 0)  /* if background */
					continue;

				if ((fg >= 0) && (im->trueColor)) {
					/* Consider alpha in the foreground color itself to be an
					   upper bound on how opaque things get, when truecolor is
					   available. Without truecolor this results in far too many
					   color indexes. */
					level =
					    level * (gdAlphaMax -
					             gdTrueColorGetAlpha (fg)) / gdAlphaMax;
				}
				level = gdAlphaMax - level;   /* inverting to get alpha */
				x = pen_x + col;
				/* clip if out of bounds */
				/* 2.0.16: clip to clipping rectangle, Matt McNabb */
				if ((x > im->cx2) || (x < im->cx1))
					continue;
				/* get pixel location in gd buffer */
				tpixel = &im->tpixels[y][x];
				if (fg < 0) {
					if (level < (gdAlphaMax / 2)) {
						*tpixel = -fg;
					}
				} else {
					if (im->alphaBlendingFlag) {
						opixel = *tpixel;
						if (gdTrueColorGetAlpha(opixel) != gdAlphaTransparent) {
							*tpixel = gdAlphaBlend (opixel,
							                        (level << 24) + (fg & 0xFFFFFF));
						} else {
							*tpixel = (level << 24) + (fg & 0xFFFFFF);
						}
					} else {
						*tpixel = (level << 24) + (fg & 0xFFFFFF);
					}
				}
			}
		}
		return (char *) NULL;
	}
	/* Non-truecolor case, restored to its more or less original form */
	for (row = 0; row < bitmap.rows; row++) {
		int pcr;
		pc = row * bitmap.pitch;
		pcr = pc;
		if (bitmap.pixel_mode == ft_pixel_mode_mono)
			pc *= 8;		/* pc is measured in bits for monochrome images */

		y = pen_y + row;

		/* clip if out of bounds */
		if (y > im->cy2 || y < im->cy1)
			continue;

		for (col = 0; col < bitmap.width; col++, pc++) {
			if (bitmap.pixel_mode == ft_pixel_mode_grays) {
				/*
				 * Round to GD_NUMCOLORS levels of antialiasing for
				 * index color images since only 256 colors are
				 * available.
				 */
				tc_key.pixel = ((bitmap.buffer[pc] * GD_NUMCOLORS)
				                + bitmap.num_grays / 2)
				               / (bitmap.num_grays - 1);
			} else if (bitmap.pixel_mode == ft_pixel_mode_mono) {
				/* 2.0.5: mode_mono fix from Giuliano Pochini */
				tc_key.pixel =
				    ((bitmap.
				      buffer[(col >> 3) +
				             pcr]) & (1 << (~col & 0x07))) ? GD_NUMCOLORS : 0;
			} else {
				return "Unsupported ft_pixel_mode";
			}
			if (tc_key.pixel == 0)	/* if background */
				continue;

			x = pen_x + col;

			/* clip if out of bounds */
			if (x > im->cx2 || x < im->cx1)
				continue;
			/* get pixel location in gd buffer */
			pixel = &im->pixels[y][x];
			if (tc_key.pixel == GD_NUMCOLORS) {
				/* use fg color directly. gd 2.0.2: watch out for
				   negative indexes (thanks to David Marwood). */
				*pixel = (fg < 0) ? -fg : fg;
			} else {
				/* find antialised color */

				tc_key.bgcolor = *pixel;
				tc_elem = (tweencolor_t *) gdCacheGet (tc_cache, &tc_key);
				if (!tc_elem) return tc_cache->error;
				*pixel = tc_elem->tweencolor;
			}
		}
	}
	return (char *) NULL;
}

/**
 * Function: gdFreeFontCache
 *
 * Alias of <gdFontCacheShutdown>.
 */
BGD_DECLARE(void) gdFreeFontCache ()
{
	gdFontCacheShutdown ();
}

/**
 * Function: gdFontCacheShutdown
 *
 * Shut down the font cache and free the allocated resources.
 *
 * Important:
 *  This function has to be called whenever FreeType operations have been
 *  invoked, to avoid resource leaks. It doesn't harm to call this function
 *  multiple times.
 */
BGD_DECLARE(void) gdFontCacheShutdown ()
{
	if (fontCache) {
		gdMutexLock(gdFontCacheMutex);
		gdCacheDelete (fontCache);
		/* 2.0.16: Gustavo Scotti: make sure we don't free this twice */
		fontCache = 0;
		gdMutexUnlock(gdFontCacheMutex);
		gdMutexShutdown (gdFontCacheMutex);
		FT_Done_FreeType (library);
	}
}

/**
 * Function: gdImageStringFT
 *
 * Render an UTF-8 string onto a gd image.
 *
 * Parameters:
 *	im       - The image to draw onto.
 *  brect    - The bounding rectangle as array of 8 integers where each pair
 *             represents the x- and y-coordinate of a point. The points
 *             specify the lower left, lower right, upper right and upper left
 *             corner.
 *	fg       - The font color.
 *	fontlist - The semicolon delimited list of font filenames to look for.
 *	ptsize   - The height of the font in typographical points (pt).
 *	angle    - The angle in radian to rotate the font counter-clockwise.
 *	x        - The x-coordinate of the basepoint (roughly the lower left corner) of the first letter.
 *	y        - The y-coordinate of the basepoint (roughly the lower left corner) of the first letter.
 *	string   - The string to render.
 *
 * Variant:
 *  - <gdImageStringFTEx>
 *
 * See also:
 *  - <gdImageString>
 */
BGD_DECLARE(char *) gdImageStringFT (gdImage * im, int *brect, int fg, const char *fontlist,
                                     double ptsize, double angle, int x, int y, const char *string)
{
	return gdImageStringFTEx (im, brect, fg, fontlist,
	                          ptsize, angle, x, y, string, 0);
}

/**
 * Function: gdFontCacheSetup
 *
 * Set up the font cache.
 *
 * This is called automatically from the string rendering functions, if it
 * has not already been called. So there's no need to call this function
 * explicitly.
 */
BGD_DECLARE(int) gdFontCacheSetup (void)
{
	if (fontCache) {
		/* Already set up */
		return 0;
	}
	gdMutexSetup (gdFontCacheMutex);
	if (FT_Init_FreeType (&library)) {
		gdMutexShutdown (gdFontCacheMutex);
		return -1;
	}
	fontCache = gdCacheCreate (FONTCACHESIZE, fontTest, fontFetch, fontRelease);
	if (!fontCache) {
		return -2;
	}
	return 0;
}

/*
  Function: gdImageStringFTEx

  gdImageStringFTEx extends the capabilities of gdImageStringFT by
  providing a way to pass additional parameters.

  If the strex parameter is not null, it must point to a
  gdFTStringExtra structure. As of gd 2.0.5, this structure is defined
  as follows:
  (start code)

  typedef struct {
      // logical OR of gdFTEX_ values
      int flags;

      // fine tune line spacing for '\n'
      double linespacing;

      // Preferred character mapping
      int charmap;

      // Rendering resolution
      int hdpi;
      int vdpi;
      char *xshow;
      char *fontpath;
  } gdFTStringExtra, *gdFTStringExtraPtr;

  (end code)

  To output multiline text with a specific line spacing, include
  gdFTEX_LINESPACE in the setting of flags:

    > flags |= gdFTEX_LINESPACE;

  And also set linespacing to the desired spacing, expressed as a
  multiple of the font height. Thus a line spacing of 1.0 is the
  minimum to guarantee that lines of text do not collide.

  If gdFTEX_LINESPACE is not present, or strex is null, or
  gdImageStringFT is called, linespacing defaults to 1.05.

  To specify a preference for Unicode, Shift_JIS Big5 character
  encoding, set or To output multiline text with a specific line
  spacing, include gdFTEX_CHARMAP in the setting of flags:

    > flags |= gdFTEX_CHARMAP;

  And set charmap to the desired value, which can be any of
  gdFTEX_Unicode, gdFTEX_Shift_JIS, gdFTEX_Big5, or
  gdFTEX_Adobe_Custom. If you do not specify a preference, Unicode
  will be tried first. If the preferred character mapping is not found
  in the font, other character mappings are attempted.

  GD operates on the assumption that the output image will be rendered
  to a computer screen. By default, gd passes a resolution of 96 dpi
  to the freetype text rendering engine. This influences the "hinting"
  decisions made by the renderer. To specify a different resolution,
  set hdpi and vdpi accordingly (in dots per inch) and add
  gdFTEX_RESOLUTION to flags:

    > flags | gdFTEX_RESOLUTION;

  GD 2.0.29 and later will normally attempt to apply kerning tables,
  if fontconfig is available, to adjust the relative positions of
  consecutive characters more ideally for that pair of
  characters. This can be turn off by specifying the
  gdFTEX_DISABLE_KERNING flag:

    > flags | gdFTEX_DISABLE_KERNING;

  GD 2.0.29 and later can return a vector of individual character
  position advances, occasionally useful in applications that must
  know exactly where each character begins. This is returned in the
  xshow element of the gdFTStringExtra structure if the gdFTEX_XSHOW
  flag is set:

    > flags | gdFTEX_XSHOW;

  The caller is responsible for calling gdFree() on the xshow element
  after the call if gdFTEX_XSHOW is set.

  GD 2.0.29 and later can also return the path to the actual font file
  used if the gdFTEX_RETURNFONTPATHNAME flag is set. This is useful
  because GD 2.0.29 and above are capable of selecting a font
  automatically based on a fontconfig font pattern when fontconfig is
  available. This information is returned in the fontpath element of
  the gdFTStringExtra structure.

    > flags | gdFTEX_RETURNFONTPATHNAME;

  The caller is responsible for calling gdFree() on the fontpath
  element after the call if gdFTEX_RETURNFONTPATHNAME is set.

  GD 2.0.29 and later can use fontconfig to resolve font names,
  including fontconfig patterns, if the gdFTEX_FONTCONFIG flag is
  set. As a convenience, this behavior can be made the default by
  calling <gdFTUseFontConfig> with a nonzero value. In that situation it
  is not necessary to set the gdFTEX_FONTCONFIG flag on every call;
  however explicit font path names can still be used if the
  gdFTEX_FONTPATHNAME flag is set:

    > flags | gdFTEX_FONTPATHNAME;

  Unless <gdFTUseFontConfig> has been called with a nonzero value, GD
  2.0.29 and later will still expect the fontlist argument to the
  freetype text output functions to be a font file name or list
  thereof as in previous versions. If you do not wish to make
  fontconfig the default, it is still possible to force the use of
  fontconfig for a single call to the freetype text output functions
  by setting the gdFTEX_FONTCONFIG flag:

    > flags | gdFTEX_FONTCONFIG;

  GD 2.0.29 and above can use fontconfig to resolve font names,
  including fontconfig patterns, if the gdFTEX_FONTCONFIG flag is
  set. As a convenience, this behavior can be made the default by
  calling <gdFTUseFontConfig> with a nonzero value. In that situation it
  is not necessary to set the gdFTEX_FONTCONFIG flag on every call;
  however explicit font path names can still be used if the
  gdFTEX_FONTPATHNAME flag is set:

    > flags | gdFTEX_FONTPATHNAME;

  For more information, see <gdImageStringFT>.
*/

/* the platform-independent resolution used for size and position calculations */
/*    the size of the error introduced by rounding is affected by this number */
#define METRIC_RES 300

BGD_DECLARE(char *) gdImageStringFTEx (gdImage * im, int *brect, int fg, const char *fontlist,
                                       double ptsize, double angle, int x, int y, const char *string,
                                       gdFTStringExtraPtr strex)
{
	FT_Matrix matrix;
	FT_Vector penf, oldpenf, total_min = {0,0}, total_max = {0,0}, glyph_min, glyph_max;
	FT_Face face;
	FT_CharMap charmap = NULL;
	FT_Glyph image;
	FT_GlyphSlot slot;
	FT_Error err;
	FT_UInt glyph_index;
	double sin_a = sin (angle);
	double cos_a = cos (angle);
	int  i, ch;
	font_t *font;
	fontkey_t fontkey;
	const char *next;
	char *tmpstr = 0;
	uint32_t *text;
	glyphInfo *info = NULL;
	ssize_t count;
	int render = (im && (im->trueColor || (fg <= 255 && fg >= -255)));
	FT_BitmapGlyph bm;
	/* 2.0.13: Bob Ostermann: don't force autohint, that's just for testing
	   freetype and doesn't look as good */
	int render_mode = FT_LOAD_DEFAULT;
	int encoding, encodingfound;
	/* Now tuneable thanks to Wez Furlong */
	double linespace = LINESPACE;
	/* 2.0.6: put this declaration with the other declarations! */
	/*
	 *   make a new tweenColorCache on every call
	 *   because caching colormappings between calls
	 *   is not safe. If the im-pointer points to a
	 *   brand new image, the cache gives out bogus
	 *   colorindexes.          -- 27.06.2001 <krisku@arrak.fi>
	 */
	gdCache_head_t *tc_cache;
	/* Tuneable horizontal and vertical resolution in dots per inch */
	int hdpi, vdpi, horiAdvance, xshow_alloc = 0, xshow_pos = 0;
	FT_Size platform_specific, platform_independent;

	if (strex) {
		if ((strex->flags & gdFTEX_LINESPACE) == gdFTEX_LINESPACE) {
			linespace = strex->linespacing;
		}
	}
	tc_cache = gdCacheCreate (TWEENCOLORCACHESIZE,
	                          tweenColorTest, tweenColorFetch,
	                          tweenColorRelease);

	/***** initialize font library and font cache on first call ******/
	if (!fontCache) {
		if (gdFontCacheSetup () != 0) {
			gdCacheDelete (tc_cache);
			return "Failure to initialize font library";
		}
	}
	/*****/
	gdMutexLock (gdFontCacheMutex);
	/* get the font (via font cache) */
	fontkey.fontlist = fontlist;
	if (strex)
		fontkey.flags = strex->flags & (gdFTEX_FONTPATHNAME |
		                                gdFTEX_FONTCONFIG);
	else
		fontkey.flags = 0;
	fontkey.library = &library;
	font = (font_t *) gdCacheGet (fontCache, &fontkey);
	if (!font) {
		gdCacheDelete (tc_cache);
		gdMutexUnlock (gdFontCacheMutex);
		return fontCache->error;
	}
	face = font->face;		/* shortcut */
	slot = face->glyph;		/* shortcut */

	if (brect) {
		total_min.x = total_min.y = 0;
		total_max.x = total_max.y = 0;
	}

	/*
	 * Added hdpi and vdpi to support images at non-screen resolutions, i.e. 300 dpi TIFF,
	 *    or 100h x 50v dpi FAX format. 2.0.23.
	 * 2004/02/27 Mark Shackelford, mark.shackelford@acs-inc.com
	 */
	hdpi = GD_RESOLUTION;
	vdpi = GD_RESOLUTION;
	encoding = gdFTEX_Unicode;
	if (strex) {
		if (strex->flags & gdFTEX_RESOLUTION) {
			hdpi = strex->hdpi;
			vdpi = strex->vdpi;
		}
		if (strex->flags & gdFTEX_XSHOW) {
			strex->xshow = NULL;
		}
		/* 2.0.12: allow explicit specification of the preferred map;
		   but we still fall back if it is not available. */
		if (strex->flags & gdFTEX_CHARMAP) {
			encoding = strex->charmap;
		}
		/* 2.0.29: we can return the font path if desired */
		if (strex->flags & gdFTEX_RETURNFONTPATHNAME) {
			const unsigned int fontpath_len = strlen(font->fontpath);

			strex->fontpath = (char *) gdMalloc(fontpath_len + 1);
			if (strex->fontpath == NULL) {
				gdCacheDelete(tc_cache);
				gdMutexUnlock(gdFontCacheMutex);
				return "could not alloc full list of fonts";
			}
			memcpy(strex->fontpath, font->fontpath, fontpath_len);
			strex->fontpath[fontpath_len] = 0;
		}
	}

	matrix.xx = (FT_Fixed) (cos_a * (1 << 16));
	matrix.yx = (FT_Fixed) (sin_a * (1 << 16));
	matrix.xy = -matrix.yx;
	matrix.yy = matrix.xx;

	/* set rotation transform */
	FT_Set_Transform (face, &matrix, NULL);

	FT_New_Size (face, &platform_independent);
	FT_Activate_Size (platform_independent);
	if (FT_Set_Char_Size (face, 0, (FT_F26Dot6)(ptsize*64), METRIC_RES, METRIC_RES)) {
		gdCacheDelete (tc_cache);
		gdMutexUnlock (gdFontCacheMutex);
		return "Could not set character size";
	}

	if (render) {
		FT_New_Size (face, &platform_specific);
		FT_Activate_Size (platform_specific);
		if (FT_Set_Char_Size (face, 0, (FT_F26Dot6)(ptsize*64), hdpi, vdpi)) {
			gdCacheDelete (tc_cache);
			gdMutexUnlock (gdFontCacheMutex);
			return "Could not set character size";
		}
	}

	if (fg < 0)
		render_mode |= FT_LOAD_MONOCHROME;

	/* find requested charmap */
	encodingfound = 0;
	for (i = 0; i < face->num_charmaps; i++) {
		charmap = face->charmaps[i];

#if ((defined(FREETYPE_MAJOR)) && (((FREETYPE_MAJOR == 2) && (((FREETYPE_MINOR == 1) && (FREETYPE_PATCH >= 3)) || (FREETYPE_MINOR > 1))) || (FREETYPE_MAJOR > 2)))
		if (encoding == gdFTEX_Unicode) {
			if (charmap->encoding == FT_ENCODING_MS_SYMBOL
			        || charmap->encoding == FT_ENCODING_UNICODE
			        || charmap->encoding == FT_ENCODING_ADOBE_CUSTOM
			        || charmap->encoding == FT_ENCODING_ADOBE_STANDARD) {
				encodingfound++;
				break;
			}
		} else if (encoding == gdFTEX_Adobe_Custom) {
			if (charmap->encoding == FT_ENCODING_ADOBE_CUSTOM) {
				encodingfound++;
				break;
			}
		} else if (encoding == gdFTEX_Big5) {
			/* renamed sometime after freetype-2.1.4 */
#ifndef FT_ENCODING_BIG5
#define FT_ENCODING_BIG5 FT_ENCODING_MS_BIG5
#endif
			if (charmap->encoding == FT_ENCODING_BIG5) {
				encodingfound++;
				break;
			}
		} else if (encoding == gdFTEX_Shift_JIS) {
			/* renamed sometime after freetype-2.1.4 */
#ifndef FT_ENCODING_SJIS
#define FT_ENCODING_SJIS FT_ENCODING_MS_SJIS
#endif
			if (charmap->encoding == FT_ENCODING_SJIS) {
				encodingfound++;
				break;
			}
		}
#else
		if (encoding == gdFTEX_Unicode) {
			if ((charmap->platform_id = 3 && charmap->encoding_id == 1)     /* Windows Unicode */
			        || (charmap->platform_id == 3 && charmap->encoding_id == 0) /* Windows Symbol */
			        || (charmap->platform_id == 2 && charmap->encoding_id == 1) /* ISO Unicode */
			        || (charmap->platform_id == 0)) {                        /* Apple Unicode */
				encodingfound++;
				break;
			}
		} else if (encoding == gdFTEX_Big5) {
			if (charmap->platform_id == 3 && charmap->encoding_id == 4) {   /* Windows Big5 */
				encodingfound++;
				break;
			}
		} else if (encoding == gdFTEX_Shift_JIS) {
			if (charmap->platform_id == 3 && charmap->encoding_id == 2) {   /* Windows Sjis */
				encodingfound++;
				break;
			}
		}
#endif
	}
	if (encodingfound) {
		FT_Set_Charmap(face, charmap);
	} else {
		/* No character set found! */
		gdCacheDelete (tc_cache);
		gdMutexUnlock (gdFontCacheMutex);
		return "No character set found";
	}

#ifndef JISX0208
	if (encoding == gdFTEX_Shift_JIS) {
#endif
		if ((tmpstr = (char *) gdMalloc (BUFSIZ))) {
			any2eucjp (tmpstr, string, BUFSIZ);
			next = tmpstr;
		} else {
			next = string;
		}
#ifndef JISX0208
	} else {
		next = string;
	}
#endif

	oldpenf.x = oldpenf.y = 0; /* for postscript xshow operator */
	penf.x = penf.y = 0;	/* running position of non-rotated glyphs */
	text = (uint32_t*) gdCalloc (sizeof (uint32_t), strlen(next));
	i = 0;
	while (*next) {
		int len;
		ch = *next;
		switch (encoding) {
		case gdFTEX_Unicode: {
			/* use UTF-8 mapping from ASCII */
			len = gdTcl_UtfToUniChar (next, &ch);
			/* EAM DEBUG */
			/* TBB: get this exactly right: 2.1.3 *or better*, all possible cases. */
			/* 2.0.24: David R. Morrison: use the more complete ifdef here. */
#if ((defined(FREETYPE_MAJOR)) && (((FREETYPE_MAJOR == 2) && (((FREETYPE_MINOR == 1) && (FREETYPE_PATCH >= 3)) || (FREETYPE_MINOR > 1))) || (FREETYPE_MAJOR > 2)))
			if (charmap->encoding == FT_ENCODING_MS_SYMBOL)
#else
			if (charmap->platform_id == 3 && charmap->encoding_id == 0)
#endif /* Freetype 2.1 or better */
			{
				/* I do not know the significance of the constant 0xf000. */
				/* It was determined by inspection of the character codes */
				/* stored in Microsoft font symbol.ttf                    */
				ch |= 0xf000;
			}
			/* EAM DEBUG */
			next += len;
		}
		break;
		case gdFTEX_Shift_JIS: {
			unsigned char c;
			int jiscode;
			c = *next;
			if (0xA1 <= c && c <= 0xFE) {
				next++;
				jiscode = 0x100 * (c & 0x7F) + ((*next) & 0x7F);

				ch = (jiscode >> 8) & 0xFF;
				jiscode &= 0xFF;

				if (ch & 1)
					jiscode += 0x40 - 0x21;
				else
					jiscode += 0x9E - 0x21;

				if (jiscode >= 0x7F)
					jiscode++;
				ch = (ch - 0x21) / 2 + 0x81;
				if (ch >= 0xA0)
					ch += 0x40;

				ch = (ch << 8) + jiscode;
			} else {
				ch = c & 0xFF;	/* don't extend sign */
			}
			if (*next) next++;
		}
		break;
		case gdFTEX_Big5: {
			/*
			 * Big 5 mapping:
			 * use "JIS-8 half-width katakana" coding from 8-bit characters. Ref:
			 * ftp://ftp.ora.com/pub/examples/nutshell/ujip/doc/japan.inf-032092.sjs
			 */
			ch = (*next) & 0xFF;	/* don't extend sign */
			next++;
			if (ch >= 161	/* first code of JIS-8 pair */
			        && *next) {
				/* don't advance past '\0' */
				/* TBB: Fix from Kwok Wah On: & 255 needed */
				ch = (ch * 256) + ((*next) & 255);
				next++;
			}
		}
		break;

		case gdFTEX_Adobe_Custom:
		default:
			ch &= 0xFF;
			next++;
			break;
		}
		text[i] = ch;
		i++;
	}

	FT_Activate_Size (platform_independent);

	count = textLayout (text , i, face, strex, &info);

	if (count < 0) {
		gdFree (text);
		gdFree (tmpstr);
		gdCacheDelete (tc_cache);
		gdMutexUnlock (gdFontCacheMutex);
		return "Problem doing text layout";
	}

	for (i = 0; i < count; i++) {
		FT_Activate_Size (platform_independent);

		ch = text[info[i].cluster];

		/* carriage returns */
		if (ch == '\r') {
			penf.x = 0;
			continue;
		}

		/* newlines */
		if (ch == '\n') {
			/* 2.0.13: reset penf.x. Christopher J. Grayce */
			penf.x = 0;
			penf.y += linespace * ptsize * 64 * METRIC_RES / 72;
			penf.y &= ~63;	/* round down to 1/METRIC_RES */
			continue;
		}

		glyph_index = info[i].index;
		/* When we know the position of the second or subsequent character,
		save the (kerned) advance from the preceeding character in the
		xshow vector */
		if (i && strex && (strex->flags & gdFTEX_XSHOW)) {
			/* make sure we have enough allocation for two numbers
			so we don't have to recheck for the terminating number */
			if (! xshow_alloc) {
				xshow_alloc = 100;
				strex->xshow = gdMalloc(xshow_alloc);
				if (!strex->xshow) {
					if (tmpstr)
						gdFree (tmpstr);
					gdFree(text);
					gdCacheDelete (tc_cache);
					gdMutexUnlock (gdFontCacheMutex);
					return "Problem allocating memory";
				}
				xshow_pos = 0;
			} else if (xshow_pos + 20 > xshow_alloc) {
				xshow_alloc += 100;
				strex->xshow = gdReallocEx(strex->xshow, xshow_alloc);
				if (!strex->xshow) {
					if (tmpstr)
						gdFree (tmpstr);
					gdFree(text);
					gdCacheDelete (tc_cache);
					gdMutexUnlock (gdFontCacheMutex);
					return "Problem allocating memory";
				}
			}
			xshow_pos += sprintf(strex->xshow + xshow_pos, "%g ",
			                     (double)(penf.x - oldpenf.x) * hdpi / (64 * METRIC_RES));
		}
		oldpenf.x = penf.x;

		/* load glyph image into the slot (erase previous one) */
		err = FT_Load_Glyph (face, glyph_index, render_mode);
		if (err) {
			if (tmpstr)
				gdFree (tmpstr);
			gdFree(text);
			gdCacheDelete (tc_cache);
			gdMutexUnlock (gdFontCacheMutex);
			return "Problem loading glyph";
		}

		horiAdvance = info[i].x_advance;

		if (brect) {
			/* only if need brect */

			glyph_min.x = penf.x + slot->metrics.horiBearingX;
			glyph_min.y = penf.y - slot->metrics.horiBearingY;

#if 0
			if (ch == ' ') {      /* special case for trailing space */
				glyph_max.x = penf.x + horiAdvance;
			} else {
				glyph_max.x = glyph_min.x + slot->metrics.width;
			}
#else
			glyph_max.x = penf.x + horiAdvance;
#endif
			glyph_max.y = glyph_min.y + slot->metrics.height;

			if (i==0) {
				total_min = glyph_min;
				total_max = glyph_max;
			} else {
				if (glyph_min.x < total_min.x)
					total_min.x = glyph_min.x;
				if (glyph_min.y < total_min.y)
					total_min.y = glyph_min.y;
				if (glyph_max.x > total_max.x)
					total_max.x = glyph_max.x;
				if (glyph_max.y > total_max.y)
					total_max.y = glyph_max.y;
			}
		}

		if (render) {
			FT_Activate_Size (platform_specific);

			/* load glyph again into the slot (erase previous one)  - this time with scaling */
			err = FT_Load_Glyph (face, glyph_index, render_mode);
			if (err) {
				if (tmpstr)
					gdFree (tmpstr);
				gdFree(text);
				gdCacheDelete (tc_cache);
				gdMutexUnlock (gdFontCacheMutex);
				return "Problem loading glyph";
			}

			/* load and transform glyph image */
			FT_Get_Glyph (slot, &image);

			if (image->format != ft_glyph_format_bitmap) {
				err = FT_Glyph_To_Bitmap (&image, ft_render_mode_normal, 0, 1);
				if (err) {
					FT_Done_Glyph(image);
					if (tmpstr)
						gdFree (tmpstr);
					gdFree(text);
					gdCacheDelete (tc_cache);
					gdMutexUnlock (gdFontCacheMutex);
					return "Problem rendering glyph";
				}
			}

			/* now, draw to our target surface */
			bm = (FT_BitmapGlyph) image;
			/* position rounded down to nearest pixel at current dpi
			(the estimate was rounded up to next 1/METRIC_RES, so this should fit) */
			FT_Pos pen_x = penf.x + info[i].x_offset;
			FT_Pos pen_y = penf.y - info[i].y_offset;
			gdft_draw_bitmap (tc_cache, im, fg, bm->bitmap,
					  (int)(x + (pen_x * cos_a + pen_y * sin_a)*hdpi/(METRIC_RES*64) + bm->left),
					  (int)(y - (pen_x * sin_a - pen_y * cos_a)*vdpi/(METRIC_RES*64) - bm->top));

			FT_Done_Glyph (image);
		}


		penf.x += horiAdvance;
	}

	gdFree(text);
	gdFree(info);

	/* Save the (unkerned) advance from the last character in the xshow vector */
	if (strex && (strex->flags & gdFTEX_XSHOW) && strex->xshow) {
		sprintf(strex->xshow + xshow_pos, "%g",
		        (double)(penf.x - oldpenf.x) * hdpi / (64 * METRIC_RES) );
	}

	if (brect) {
		/* only if need brect */
		double scalex = (double)hdpi / (64 * METRIC_RES);
		double scaley = (double)vdpi / (64 * METRIC_RES);

		/* rotate bounding rectangle, scale and round to int pixels, and translate */
		brect[0] = x + (total_min.x * cos_a + total_max.y * sin_a)*scalex;
		brect[1] = y - (total_min.x * sin_a - total_max.y * cos_a)*scaley;
		brect[2] = x + (total_max.x * cos_a + total_max.y * sin_a)*scalex;
		brect[3] = y - (total_max.x * sin_a - total_max.y * cos_a)*scaley;
		brect[4] = x + (total_max.x * cos_a + total_min.y * sin_a)*scalex;
		brect[5] = y - (total_max.x * sin_a - total_min.y * cos_a)*scaley;
		brect[6] = x + (total_min.x * cos_a + total_min.y * sin_a)*scalex;
		brect[7] = y - (total_min.x * sin_a - total_min.y * cos_a)*scaley;
	}

	FT_Done_Size (platform_independent);
	if (render)
		FT_Done_Size (platform_specific);

	if (tmpstr)
		gdFree (tmpstr);
	gdCacheDelete (tc_cache);
	gdMutexUnlock (gdFontCacheMutex);
	return (char *) NULL;
}

#endif /* HAVE_LIBFREETYPE */

#ifdef HAVE_LIBFONTCONFIG
/* Code to find font path, with special mapping for Postscript font names.
 *
 * Dag Lem <dag@nimrod.no>
 */

#include <fontconfig/fontconfig.h>

/* #define NO_POSTSCRIPT_ALIAS 1 */
#ifndef NO_POSTSCRIPT_ALIAS
typedef struct _PostscriptAlias {
	char* name;
	char* family;
	char* style;
} PostscriptAlias;

/* This table maps standard Postscript font names to URW Type 1 fonts.
   The mapping is converted from Ghostscript (Fontmap.GS)
   for use with fontconfig. */
static PostscriptAlias postscript_alias[] = {
	{ "AvantGarde-Book", "URW Gothic L", "Book" },
	{ "AvantGarde-BookOblique", "URW Gothic L", "Book Oblique" },
	{ "AvantGarde-Demi", "URW Gothic L", "Demi" },
	{ "AvantGarde-DemiOblique", "URW Gothic L", "Demi Oblique" },

	{ "Bookman-Demi", "URW Bookman L", "Demi Bold" },
	{ "Bookman-DemiItalic", "URW Bookman L", "Demi Bold Italic" },
	{ "Bookman-Light", "URW Bookman L", "Light" },
	{ "Bookman-LightItalic", "URW Bookman L", "Light Italic" },

	{ "Courier", "Nimbus Mono L", "Regular" },
	{ "Courier-Oblique", "Nimbus Mono L", "Regular Oblique" },
	{ "Courier-Bold", "Nimbus Mono L", "Bold" },
	{ "Courier-BoldOblique", "Nimbus Mono L", "Bold Oblique" },

	{ "Helvetica", "Nimbus Sans L", "Regular" },
	{ "Helvetica-Oblique", "Nimbus Sans L", "Regular Italic" },
	{ "Helvetica-Bold", "Nimbus Sans L", "Bold" },
	{ "Helvetica-BoldOblique", "Nimbus Sans L", "Bold Italic" },

	{ "Helvetica-Narrow", "Nimbus Sans L", "Regular Condensed" },
	{ "Helvetica-Narrow-Oblique", "Nimbus Sans L", "Regular Condensed Italic" },
	{ "Helvetica-Narrow-Bold", "Nimbus Sans L", "Bold Condensed" },
	{ "Helvetica-Narrow-BoldOblique", "Nimbus Sans L", "Bold Condensed Italic" },

	{ "NewCenturySchlbk-Roman", "Century Schoolbook L", "Roman" },
	{ "NewCenturySchlbk-Italic", "Century Schoolbook L", "Italic" },
	{ "NewCenturySchlbk-Bold", "Century Schoolbook L", "Bold" },
	{ "NewCenturySchlbk-BoldItalic", "Century Schoolbook L", "Bold Italic" },

	{ "Palatino-Roman", "URW Palladio L", "Roman" },
	{ "Palatino-Italic", "URW Palladio L", "Italic" },
	{ "Palatino-Bold", "URW Palladio L", "Bold" },
	{ "Palatino-BoldItalic", "URW Palladio L", "Bold Italic" },

	{ "Symbol", "Standard Symbols L", "Regular" },

	{ "Times-Roman", "Nimbus Roman No9 L", "Regular" },
	{ "Times-Italic", "Nimbus Roman No9 L", "Regular Italic" },
	{ "Times-Bold", "Nimbus Roman No9 L", "Medium" },
	{ "Times-BoldItalic", "Nimbus Roman No9 L", "Medium Italic" },

	{ "ZapfChancery-MediumItalic", "URW Chancery L", "Medium Italic" },

	{ "ZapfDingbats", "Dingbats", "" },
};
#endif


static FcPattern* find_font(FcPattern* pattern)
{
	FcResult result;

	FcConfigSubstitute(0, pattern, FcMatchPattern);
	FcConfigSubstitute(0, pattern, FcMatchFont);
	FcDefaultSubstitute(pattern);

	return FcFontMatch(0, pattern, &result);
}


#ifndef NO_POSTSCRIPT_ALIAS
static char* find_postscript_font(FcPattern **fontpattern, char* fontname)
{
	FcPattern* font = NULL;
	size_t i;

	*fontpattern = NULL;
	for (i = 0; i < sizeof(postscript_alias)/sizeof(*postscript_alias); i++) {
		if (strcmp(fontname, postscript_alias[i].name) == 0) {
			FcChar8* family;

			FcPattern* pattern =
			    FcPatternBuild(0,
			                   FC_FAMILY, FcTypeString, postscript_alias[i].family,
			                   FC_STYLE, FcTypeString, postscript_alias[i].style,
			                   (char*)0);
			font = find_font(pattern);
			FcPatternDestroy(pattern);

			if (!font)
				return "fontconfig: Couldn't find font.";
			if (FcPatternGetString(font, FC_FAMILY, 0, &family) != FcResultMatch) {
				FcPatternDestroy(font);
				return "fontconfig: Couldn't retrieve font family name.";
			}

			/* Check whether we got the font family we wanted. */
			if (strcmp((const char *)family, postscript_alias[i].family) != 0) {
				FcPatternDestroy(font);
				return "fontconfig: Didn't find expected font family. Perhaps URW Type 1 fonts need installing?";
			}
			break;
		}
	}

	*fontpattern = font;
	return NULL;
}
#endif

static char * font_pattern(char **fontpath, char *fontpattern)
{
	FcPattern* font = NULL;
	FcChar8* file;
	FcPattern* pattern;
#ifndef NO_POSTSCRIPT_ALIAS
	char *error;
#endif

	*fontpath = NULL;
#ifndef NO_POSTSCRIPT_ALIAS
	error = find_postscript_font(&font, fontpattern);

	if (!font) {
		if (error)
			return error;
#endif
		pattern = FcNameParse((const FcChar8 *)fontpattern);
		font = find_font(pattern);
		FcPatternDestroy(pattern);
#ifndef NO_POSTSCRIPT_ALIAS
	}
#endif

	if (!font)
		return "fontconfig: Couldn't find font.";
	if (FcPatternGetString(font, FC_FILE, 0, &file) != FcResultMatch) {
		FcPatternDestroy(font);
		return "fontconfig: Couldn't retrieve font file name.";
	} else {
		const unsigned int file_len = strlen((const char *)file);

		*fontpath = (char *) gdMalloc(file_len + 1);
		if (*fontpath == NULL) {
			return "could not alloc font path";
		}
		memcpy(*fontpath, (const char *)file, file_len);
		(*fontpath)[file_len] = 0;
	}
	FcPatternDestroy(font);

	return NULL;
}

#endif /* HAVE_LIBFONTCONFIG */

#ifdef HAVE_LIBFREETYPE
/* Look up font using font names as file names. */
static char * font_path(char **fontpath, char *name_list)
{
	int font_found = 0;
	char *fontsearchpath, *fontlist;
	char *fullname = NULL;
	char *name, *dir;
	char *path;
	char *strtok_ptr = NULL;
	const unsigned int name_list_len = strlen(name_list);

	/*
	 * Search the pathlist for any of a list of font names.
	 */
	*fontpath = NULL;
	fontsearchpath = getenv ("GDFONTPATH");
	if (!fontsearchpath)
		fontsearchpath = DEFAULT_FONTPATH;
	path = (char *) gdMalloc(sizeof(char) * strlen(fontsearchpath) + 1);
	if( path == NULL ) {
		return "could not alloc full list of fonts";
	}
	path[0] = 0;

	fontlist = (char *) gdMalloc(name_list_len + 1);
	if (fontlist == NULL) {
		gdFree(path);
		return "could not alloc full list of fonts";
	}
	memcpy(fontlist, name_list, name_list_len);
	fontlist[name_list_len] = 0;

	/*
	 * Must use gd_strtok_r else pointer corrupted by strtok in nested loop.
	 */
	for (name = gd_strtok_r (fontlist, LISTSEPARATOR, &strtok_ptr); name;
	        name = gd_strtok_r (0, LISTSEPARATOR, &strtok_ptr)) {
		char *path_ptr = NULL;

		/* make a fresh copy each time - strtok corrupts it. */
		sprintf (path, "%s", fontsearchpath);
		/*
		 * Allocate an oversized buffer that is guaranteed to be
		 * big enough for all paths to be tested.
		 */
		/* 2.0.22: Thorben Kundinger: +8 is needed, not +6. */
		fullname = gdReallocEx(fullname,
		                      strlen (fontsearchpath) + strlen (name) + 8);
		if (!fullname) {
			gdFree(fontlist);
			gdFree(path);
			return "could not alloc full path of font";
		}
		/* if name is an absolute or relative pathname then test directly */
		if (strchr (name, '/')
		        || (name[0] != 0 && name[1] == ':'
		            && (name[2] == '/' || name[2] == '\\')))
		{
			sprintf (fullname, "%s", name);
			if (access (fullname, R_OK) == 0) {
				font_found++;
				break;
			}
		}
		for (dir = gd_strtok_r (path, PATHSEPARATOR, &path_ptr); dir;
		        dir = gd_strtok_r (0, PATHSEPARATOR, &path_ptr)) {
			if (strchr (name, '.')) {
				sprintf (fullname, "%s/%s", dir, name);
				if (access (fullname, R_OK) == 0) {
					font_found++;
					break;
				} else {
					continue;
				}
			}
			sprintf (fullname, "%s/%s.ttf", dir, name);
			if (access (fullname, R_OK) == 0) {
				font_found++;
				break;
			}
			sprintf (fullname, "%s/%s.pfa", dir, name);
			if (access (fullname, R_OK) == 0) {
				font_found++;
				break;
			}
			sprintf (fullname, "%s/%s.pfb", dir, name);
			if (access (fullname, R_OK) == 0) {
				font_found++;
				break;
			}
			sprintf (fullname, "%s/%s.dfont", dir, name);
			if (access (fullname, R_OK) == 0) {
				font_found++;
				break;
			}
		}

		if (font_found)
			break;
	}
	gdFree (path);
	if (fontlist != NULL) {
		gdFree (fontlist);
		fontlist = NULL;
	}
	if (!font_found) {
		gdFree (fullname);
		return "Could not find/open font";
	}

	*fontpath = fullname;
	return NULL;
}
#endif

/**
 * Function: gdFTUseFontConfig
 *
 * Enable or disable fontconfig by default.
 *
 * If GD is built without libfontconfig support, this function is a NOP.
 *
 * Parameters:
 *  flag - Zero to disable, nonzero to enable.
 *
 * See also:
 *  - <gdImageStringFTEx>
 */
BGD_DECLARE(int) gdFTUseFontConfig(int flag)
{
#ifdef HAVE_LIBFONTCONFIG
	fontConfigFlag = flag;
	return 1;
#else
	(void)flag;
	return 0;
#endif /* HAVE_LIBFONTCONFIG */
}