File: ft2.c

package info (click to toggle)
darkplaces 0~20180412~beta1-2
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 18,200 kB
  • sloc: ansic: 176,886; makefile: 485; pascal: 455; perl: 372; objc: 245; sh: 102
file content (1705 lines) | stat: -rw-r--r-- 50,165 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
/* FreeType 2 and UTF-8 encoding support for
 * DarkPlaces
 */
#include "quakedef.h"

#include "ft2.h"

#ifdef LINK_TO_FREETYPE2
# include <ft2build.h>
# include FT_FREETYPE_H
# define DP_FREETYPE_STATIC
#else
# include "ft2_defs.h"
#endif

#include "ft2_fontdefs.h"
#include "image.h"

static int img_fontmap[256] = {
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // shift+digit line
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // digits
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // caps
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // caps
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // small
	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // small
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // specials
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // faces
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};

/*
================================================================================
CVars introduced with the freetype extension
================================================================================
*/

cvar_t r_font_disable_freetype = {CVAR_SAVE, "r_font_disable_freetype", "1", "disable freetype support for fonts entirely"};
cvar_t r_font_use_alpha_textures = {CVAR_SAVE, "r_font_use_alpha_textures", "0", "use alpha-textures for font rendering, this should safe memory"};
cvar_t r_font_size_snapping = {CVAR_SAVE, "r_font_size_snapping", "1", "stick to good looking font sizes whenever possible - bad when the mod doesn't support it!"};
cvar_t r_font_kerning = {CVAR_SAVE, "r_font_kerning", "1", "Use kerning if available"};
cvar_t r_font_diskcache = {CVAR_SAVE, "r_font_diskcache", "0", "save font textures to disk for future loading rather than generating them every time"};
cvar_t r_font_compress = {CVAR_SAVE, "r_font_compress", "0", "use texture compression on font textures to save video memory"};
cvar_t r_font_nonpoweroftwo = {CVAR_SAVE, "r_font_nonpoweroftwo", "1", "use nonpoweroftwo textures for font (saves memory, potentially slower)"};
cvar_t developer_font = {CVAR_SAVE, "developer_font", "0", "prints debug messages about fonts"};

#ifndef DP_FREETYPE_STATIC

/*
================================================================================
Function definitions. Taken from the freetype2 headers.
================================================================================
*/


FT_EXPORT( FT_Error )
(*qFT_Init_FreeType)( FT_Library  *alibrary );
FT_EXPORT( FT_Error )
(*qFT_Done_FreeType)( FT_Library  library );
/*
FT_EXPORT( FT_Error )
(*qFT_New_Face)( FT_Library   library,
		 const char*  filepathname,
		 FT_Long      face_index,
		 FT_Face     *aface );
*/
FT_EXPORT( FT_Error )
(*qFT_New_Memory_Face)( FT_Library      library,
			const FT_Byte*  file_base,
			FT_Long         file_size,
			FT_Long         face_index,
			FT_Face        *aface );
FT_EXPORT( FT_Error )
(*qFT_Done_Face)( FT_Face  face );
FT_EXPORT( FT_Error )
(*qFT_Select_Size)( FT_Face  face,
		    FT_Int   strike_index );
FT_EXPORT( FT_Error )
(*qFT_Request_Size)( FT_Face          face,
		     FT_Size_Request  req );
FT_EXPORT( FT_Error )
(*qFT_Set_Char_Size)( FT_Face     face,
		      FT_F26Dot6  char_width,
		      FT_F26Dot6  char_height,
		      FT_UInt     horz_resolution,
		      FT_UInt     vert_resolution );
FT_EXPORT( FT_Error )
(*qFT_Set_Pixel_Sizes)( FT_Face  face,
			FT_UInt  pixel_width,
			FT_UInt  pixel_height );
FT_EXPORT( FT_Error )
(*qFT_Load_Glyph)( FT_Face   face,
		   FT_UInt   glyph_index,
		   FT_Int32  load_flags );
FT_EXPORT( FT_Error )
(*qFT_Load_Char)( FT_Face   face,
		  FT_ULong  char_code,
		  FT_Int32  load_flags );
FT_EXPORT( FT_UInt )
(*qFT_Get_Char_Index)( FT_Face   face,
		       FT_ULong  charcode );
FT_EXPORT( FT_Error )
(*qFT_Render_Glyph)( FT_GlyphSlot    slot,
		     FT_Render_Mode  render_mode );
FT_EXPORT( FT_Error )
(*qFT_Get_Kerning)( FT_Face     face,
		    FT_UInt     left_glyph,
		    FT_UInt     right_glyph,
		    FT_UInt     kern_mode,
		    FT_Vector  *akerning );
FT_EXPORT( FT_Error )
(*qFT_Attach_Stream)( FT_Face        face,
		      FT_Open_Args*  parameters );
/*
================================================================================
Support for dynamically loading the FreeType2 library
================================================================================
*/

static dllfunction_t ft2funcs[] =
{
	{"FT_Init_FreeType",		(void **) &qFT_Init_FreeType},
	{"FT_Done_FreeType",		(void **) &qFT_Done_FreeType},
	//{"FT_New_Face",			(void **) &qFT_New_Face},
	{"FT_New_Memory_Face",		(void **) &qFT_New_Memory_Face},
	{"FT_Done_Face",		(void **) &qFT_Done_Face},
	{"FT_Select_Size",		(void **) &qFT_Select_Size},
	{"FT_Request_Size",		(void **) &qFT_Request_Size},
	{"FT_Set_Char_Size",		(void **) &qFT_Set_Char_Size},
	{"FT_Set_Pixel_Sizes",		(void **) &qFT_Set_Pixel_Sizes},
	{"FT_Load_Glyph",		(void **) &qFT_Load_Glyph},
	{"FT_Load_Char",		(void **) &qFT_Load_Char},
	{"FT_Get_Char_Index",		(void **) &qFT_Get_Char_Index},
	{"FT_Render_Glyph",		(void **) &qFT_Render_Glyph},
	{"FT_Get_Kerning",		(void **) &qFT_Get_Kerning},
	{"FT_Attach_Stream",		(void **) &qFT_Attach_Stream},
	{NULL, NULL}
};

/// Handle for FreeType2 DLL
static dllhandle_t ft2_dll = NULL;

#else

#ifndef LINK_TO_FREETYPE2

FT_EXPORT( FT_Error )
(FT_Init_FreeType)( FT_Library  *alibrary );
FT_EXPORT( FT_Error )
(FT_Done_FreeType)( FT_Library  library );
/*
FT_EXPORT( FT_Error )
(FT_New_Face)( FT_Library   library,
		 const char*  filepathname,
		 FT_Long      face_index,
		 FT_Face     *aface );
*/
FT_EXPORT( FT_Error )
(FT_New_Memory_Face)( FT_Library      library,
			const FT_Byte*  file_base,
			FT_Long         file_size,
			FT_Long         face_index,
			FT_Face        *aface );
FT_EXPORT( FT_Error )
(FT_Done_Face)( FT_Face  face );
FT_EXPORT( FT_Error )
(FT_Select_Size)( FT_Face  face,
		    FT_Int   strike_index );
FT_EXPORT( FT_Error )
(FT_Request_Size)( FT_Face          face,
		     FT_Size_Request  req );
FT_EXPORT( FT_Error )
(FT_Set_Char_Size)( FT_Face     face,
		      FT_F26Dot6  char_width,
		      FT_F26Dot6  char_height,
		      FT_UInt     horz_resolution,
		      FT_UInt     vert_resolution );
FT_EXPORT( FT_Error )
(FT_Set_Pixel_Sizes)( FT_Face  face,
			FT_UInt  pixel_width,
			FT_UInt  pixel_height );
FT_EXPORT( FT_Error )
(FT_Load_Glyph)( FT_Face   face,
		   FT_UInt   glyph_index,
		   FT_Int32  load_flags );
FT_EXPORT( FT_Error )
(FT_Load_Char)( FT_Face   face,
		  FT_ULong  char_code,
		  FT_Int32  load_flags );
FT_EXPORT( FT_UInt )
(FT_Get_Char_Index)( FT_Face   face,
		       FT_ULong  charcode );
FT_EXPORT( FT_Error )
(FT_Render_Glyph)( FT_GlyphSlot    slot,
		     FT_Render_Mode  render_mode );
FT_EXPORT( FT_Error )
(FT_Get_Kerning)( FT_Face     face,
		    FT_UInt     left_glyph,
		    FT_UInt     right_glyph,
		    FT_UInt     kern_mode,
		    FT_Vector  *akerning );
FT_EXPORT( FT_Error )
(FT_Attach_Stream)( FT_Face        face,
		      FT_Open_Args*  parameters );

#endif

#define qFT_Init_FreeType		FT_Init_FreeType
#define qFT_Done_FreeType		FT_Done_FreeType
//#define qFT_New_Face			FT_New_Face
#define qFT_New_Memory_Face		FT_New_Memory_Face
#define qFT_Done_Face			FT_Done_Face
#define qFT_Select_Size			FT_Select_Size
#define qFT_Request_Size		FT_Request_Size
#define qFT_Set_Char_Size		FT_Set_Char_Size
#define qFT_Set_Pixel_Sizes		FT_Set_Pixel_Sizes
#define qFT_Load_Glyph			FT_Load_Glyph
#define qFT_Load_Char			FT_Load_Char
#define qFT_Get_Char_Index		FT_Get_Char_Index
#define qFT_Render_Glyph		FT_Render_Glyph
#define qFT_Get_Kerning			FT_Get_Kerning
#define qFT_Attach_Stream		FT_Attach_Stream

#endif

/// Memory pool for fonts
static mempool_t *font_mempool= NULL;

/// FreeType library handle
static FT_Library font_ft2lib = NULL;

#define POSTPROCESS_MAXRADIUS 8
typedef struct
{
	unsigned char *buf, *buf2;
	int bufsize, bufwidth, bufheight, bufpitch;
	float blur, outline, shadowx, shadowy, shadowz;
	int padding_t, padding_b, padding_l, padding_r, blurpadding_lt, blurpadding_rb, outlinepadding_t, outlinepadding_b, outlinepadding_l, outlinepadding_r;
	unsigned char circlematrix[2*POSTPROCESS_MAXRADIUS+1][2*POSTPROCESS_MAXRADIUS+1];
	unsigned char gausstable[2*POSTPROCESS_MAXRADIUS+1];
}
font_postprocess_t;
static font_postprocess_t pp;

typedef struct fontfilecache_s
{
	unsigned char *buf;
	fs_offset_t len;
	int refcount;
	char path[MAX_QPATH];
}
fontfilecache_t;
#define MAX_FONTFILES 8
static fontfilecache_t fontfiles[MAX_FONTFILES];
static const unsigned char *fontfilecache_LoadFile(const char *path, qboolean quiet, fs_offset_t *filesizepointer)
{
	int i;
	unsigned char *buf;

	for(i = 0; i < MAX_FONTFILES; ++i)
	{
		if(fontfiles[i].refcount > 0)
			if(!strcmp(path, fontfiles[i].path))
			{
				*filesizepointer = fontfiles[i].len;
				++fontfiles[i].refcount;
				return fontfiles[i].buf;
			}
	}

	buf = FS_LoadFile(path, font_mempool, quiet, filesizepointer);
	if(buf)
	{
		for(i = 0; i < MAX_FONTFILES; ++i)
			if(fontfiles[i].refcount <= 0)
			{
				strlcpy(fontfiles[i].path, path, sizeof(fontfiles[i].path));
				fontfiles[i].len = *filesizepointer;
				fontfiles[i].buf = buf;
				fontfiles[i].refcount = 1;
				return buf;
			}
	}

	return buf;
}
static void fontfilecache_Free(const unsigned char *buf)
{
	int i;
	for(i = 0; i < MAX_FONTFILES; ++i)
	{
		if(fontfiles[i].refcount > 0)
			if(fontfiles[i].buf == buf)
			{
				if(--fontfiles[i].refcount <= 0)
				{
					Mem_Free(fontfiles[i].buf);
					fontfiles[i].buf = NULL;
				}
				return;
			}
	}
	// if we get here, it used regular allocation
	Mem_Free((void *) buf);
}
static void fontfilecache_FreeAll(void)
{
	int i;
	for(i = 0; i < MAX_FONTFILES; ++i)
	{
		if(fontfiles[i].refcount > 0)
			Mem_Free(fontfiles[i].buf);
		fontfiles[i].buf = NULL;
		fontfiles[i].refcount = 0;
	}
}

/*
====================
Font_CloseLibrary

Unload the FreeType2 DLL
====================
*/
void Font_CloseLibrary (void)
{
	fontfilecache_FreeAll();
	if (font_mempool)
		Mem_FreePool(&font_mempool);
	if (font_ft2lib
#ifndef LINK_TO_FREETYPE2
		&& qFT_Done_FreeType
#endif
		)
	{
		qFT_Done_FreeType(font_ft2lib);
		font_ft2lib = NULL;
	}
#ifndef DP_FREETYPE_STATIC
	Sys_UnloadLibrary (&ft2_dll);
#endif
	pp.buf = NULL;
}

/*
====================
Font_OpenLibrary

Try to load the FreeType2 DLL
====================
*/
qboolean Font_OpenLibrary (void)
{
#ifndef DP_FREETYPE_STATIC
	const char* dllnames [] =
	{
#if defined(WIN32)
		"libfreetype-6.dll",
		"freetype6.dll",
#elif defined(MACOSX)
		"libfreetype.6.dylib",
		"libfreetype.dylib",
#else
		"libfreetype.so.6",
		"libfreetype.so",
#endif
		NULL
	};
#endif

	if (r_font_disable_freetype.integer)
		return false;

#ifndef DP_FREETYPE_STATIC
	// Already loaded?
	if (ft2_dll)
		return true;

	// Load the DLL
	if (!Sys_LoadLibrary (dllnames, &ft2_dll, ft2funcs))
		return false;
#endif
	return true;
}

/*
====================
Font_Init

Initialize the freetype2 font subsystem
====================
*/

void font_start(void)
{
	if (!Font_OpenLibrary())
		return;

	if (qFT_Init_FreeType(&font_ft2lib))
	{
		Con_Print("ERROR: Failed to initialize the FreeType2 library!\n");
		Font_CloseLibrary();
		return;
	}

	font_mempool = Mem_AllocPool("FONT", 0, NULL);
	if (!font_mempool)
	{
		Con_Print("ERROR: Failed to allocate FONT memory pool!\n");
		Font_CloseLibrary();
		return;
	}
}

void font_shutdown(void)
{
	int i;
	for (i = 0; i < dp_fonts.maxsize; ++i)
	{
		if (dp_fonts.f[i].ft2)
		{
			Font_UnloadFont(dp_fonts.f[i].ft2);
			dp_fonts.f[i].ft2 = NULL;
		}
	}
	Font_CloseLibrary();
}

void font_newmap(void)
{
}

void Font_Init(void)
{
	Cvar_RegisterVariable(&r_font_nonpoweroftwo);
	Cvar_RegisterVariable(&r_font_disable_freetype);
	Cvar_RegisterVariable(&r_font_use_alpha_textures);
	Cvar_RegisterVariable(&r_font_size_snapping);
	Cvar_RegisterVariable(&r_font_kerning);
	Cvar_RegisterVariable(&r_font_diskcache);
	Cvar_RegisterVariable(&r_font_compress);
	Cvar_RegisterVariable(&developer_font);

	// let's open it at startup already
	Font_OpenLibrary();
}

/*
================================================================================
Implementation of a more or less lazy font loading and rendering code.
================================================================================
*/

#include "ft2_fontdefs.h"

ft2_font_t *Font_Alloc(void)
{
#ifndef DP_FREETYPE_STATIC
	if (!ft2_dll)
#else
	if (r_font_disable_freetype.integer)
#endif
		return NULL;
	return (ft2_font_t *)Mem_Alloc(font_mempool, sizeof(ft2_font_t));
}

static qboolean Font_Attach(ft2_font_t *font, ft2_attachment_t *attachment)
{
	ft2_attachment_t *na;

	font->attachmentcount++;
	na = (ft2_attachment_t*)Mem_Alloc(font_mempool, sizeof(font->attachments[0]) * font->attachmentcount);
	if (na == NULL)
		return false;
	if (font->attachments && font->attachmentcount > 1)
	{
		memcpy(na, font->attachments, sizeof(font->attachments[0]) * (font->attachmentcount - 1));
		Mem_Free(font->attachments);
	}
	memcpy(na + sizeof(font->attachments[0]) * (font->attachmentcount - 1), attachment, sizeof(*attachment));
	font->attachments = na;
	return true;
}

float Font_VirtualToRealSize(float sz)
{
	int vh;
	//int vw;
	int si;
	float sn;
	if(sz < 0)
		return sz;
	//vw = ((vid.width > 0) ? vid.width : vid_width.value);
	vh = ((vid.height > 0) ? vid.height : vid_height.value);
	// now try to scale to our actual size:
	sn = sz * vh / vid_conheight.value;
	si = (int)sn;
	if ( sn - (float)si >= 0.5 )
		++si;
	return si;
}

float Font_SnapTo(float val, float snapwidth)
{
	return floor(val / snapwidth + 0.5f) * snapwidth;
}

static qboolean Font_LoadFile(const char *name, int _face, ft2_settings_t *settings, ft2_font_t *font);
static qboolean Font_LoadSize(ft2_font_t *font, float size, qboolean check_only);
qboolean Font_LoadFont(const char *name, dp_font_t *dpfnt)
{
	int s, count, i;
	ft2_font_t *ft2, *fbfont, *fb;
	char vabuf[1024];

	ft2 = Font_Alloc();
	if (!ft2)
	{
		dpfnt->ft2 = NULL;
		return false;
	}

	// check if a fallback font has been specified, if it has been, and the
	// font fails to load, use the image font as main font
	for (i = 0; i < MAX_FONT_FALLBACKS; ++i)
	{
		if (dpfnt->fallbacks[i][0])
			break;
	}

	if (!Font_LoadFile(name, dpfnt->req_face, &dpfnt->settings, ft2))
	{
		if (i >= MAX_FONT_FALLBACKS)
		{
			dpfnt->ft2 = NULL;
			Mem_Free(ft2);
			return false;
		}
		strlcpy(ft2->name, name, sizeof(ft2->name));
		ft2->image_font = true;
		ft2->has_kerning = false;
	}
	else
	{
		ft2->image_font = false;
	}

	// attempt to load fallback fonts:
	fbfont = ft2;
	for (i = 0; i < MAX_FONT_FALLBACKS; ++i)
	{
		if (!dpfnt->fallbacks[i][0])
			break;
		if (! (fb = Font_Alloc()) )
		{
			Con_Printf("Failed to allocate font for fallback %i of font %s\n", i, name);
			break;
		}

		if (!Font_LoadFile(dpfnt->fallbacks[i], dpfnt->fallback_faces[i], &dpfnt->settings, fb))
		{
			if(!FS_FileExists(va(vabuf, sizeof(vabuf), "%s.tga", dpfnt->fallbacks[i])))
			if(!FS_FileExists(va(vabuf, sizeof(vabuf), "%s.png", dpfnt->fallbacks[i])))
			if(!FS_FileExists(va(vabuf, sizeof(vabuf), "%s.jpg", dpfnt->fallbacks[i])))
			if(!FS_FileExists(va(vabuf, sizeof(vabuf), "%s.pcx", dpfnt->fallbacks[i])))
				Con_Printf("Failed to load font %s for fallback %i of font %s\n", dpfnt->fallbacks[i], i, name);
			Mem_Free(fb);
			continue;
		}
		count = 0;
		for (s = 0; s < MAX_FONT_SIZES && dpfnt->req_sizes[s] >= 0; ++s)
		{
			if (Font_LoadSize(fb, Font_VirtualToRealSize(dpfnt->req_sizes[s]), true))
				++count;
		}
		if (!count)
		{
			Con_Printf("Failed to allocate font for fallback %i of font %s\n", i, name);
			Font_UnloadFont(fb);
			Mem_Free(fb);
			break;
		}
		// at least one size of the fallback font loaded successfully
		// link it:
		fbfont->next = fb;
		fbfont = fb;
	}

	if (fbfont == ft2 && ft2->image_font)
	{
		// no fallbacks were loaded successfully:
		dpfnt->ft2 = NULL;
		Mem_Free(ft2);
		return false;
	}

	count = 0;
	for (s = 0; s < MAX_FONT_SIZES && dpfnt->req_sizes[s] >= 0; ++s)
	{
		if (Font_LoadSize(ft2, Font_VirtualToRealSize(dpfnt->req_sizes[s]), false))
			++count;
	}
	if (!count)
	{
		// loading failed for every requested size
		Font_UnloadFont(ft2);
		Mem_Free(ft2);
		dpfnt->ft2 = NULL;
		return false;
	}

	//Con_Printf("%i sizes loaded\n", count);
	dpfnt->ft2 = ft2;
	return true;
}

static qboolean Font_LoadFile(const char *name, int _face, ft2_settings_t *settings, ft2_font_t *font)
{
	size_t namelen;
	char filename[MAX_QPATH];
	int status;
	size_t i;
	const unsigned char *data;
	fs_offset_t datasize;

	memset(font, 0, sizeof(*font));

	if (!Font_OpenLibrary())
	{
		if (!r_font_disable_freetype.integer)
		{
			Con_Printf("WARNING: can't open load font %s\n"
				   "You need the FreeType2 DLL to load font files\n",
				   name);
		}
		return false;
	}

	font->settings = settings;

	namelen = strlen(name);
	if (namelen + 5 > sizeof(filename))
	{
		Con_Printf("WARNING: too long font name. Cannot load this.\n");
		return false;
	}

	// try load direct file
	memcpy(filename, name, namelen+1);
	data = fontfilecache_LoadFile(filename, false, &datasize);
	// try load .ttf
	if (!data)
	{
		memcpy(filename + namelen, ".ttf", 5);
		data = fontfilecache_LoadFile(filename, false, &datasize);
	}
	// try load .otf
	if (!data)
	{
		memcpy(filename + namelen, ".otf", 5);
		data = fontfilecache_LoadFile(filename, false, &datasize);
	}
	// try load .pfb/afm
	if (!data)
	{
		ft2_attachment_t afm;

		memcpy(filename + namelen, ".pfb", 5);
		data = fontfilecache_LoadFile(filename, false, &datasize);

		if (data)
		{
			memcpy(filename + namelen, ".afm", 5);
			afm.data = fontfilecache_LoadFile(filename, false, &afm.size);

			if (afm.data)
				Font_Attach(font, &afm);
		}
	}
	if (!data)
	{
		// FS_LoadFile being not-quiet should print an error :)
		return false;
	}
	Con_DPrintf("Loading font %s face %i...\n", filename, _face);

	status = qFT_New_Memory_Face(font_ft2lib, (FT_Bytes)data, datasize, _face, (FT_Face*)&font->face);
	if (status && _face != 0)
	{
		Con_Printf("Failed to load face %i of %s. Falling back to face 0\n", _face, name);
		_face = 0;
		status = qFT_New_Memory_Face(font_ft2lib, (FT_Bytes)data, datasize, _face, (FT_Face*)&font->face);
	}
	font->data = data;
	if (status)
	{
		Con_Printf("ERROR: can't create face for %s\n"
			   "Error %i\n", // TODO: error strings
			   name, status);
		Font_UnloadFont(font);
		return false;
	}

	// add the attachments
	for (i = 0; i < font->attachmentcount; ++i)
	{
		FT_Open_Args args;
		memset(&args, 0, sizeof(args));
		args.flags = FT_OPEN_MEMORY;
		args.memory_base = (const FT_Byte*)font->attachments[i].data;
		args.memory_size = font->attachments[i].size;
		if (qFT_Attach_Stream((FT_Face)font->face, &args))
			Con_Printf("Failed to add attachment %u to %s\n", (unsigned)i, font->name);
	}

	strlcpy(font->name, name, sizeof(font->name));
	font->image_font = false;
	font->has_kerning = !!(((FT_Face)(font->face))->face_flags & FT_FACE_FLAG_KERNING);
	return true;
}

static void Font_Postprocess_Update(ft2_font_t *fnt, int bpp, int w, int h)
{
	int needed, x, y;
	float gausstable[2*POSTPROCESS_MAXRADIUS+1];
	qboolean need_gauss  = (!pp.buf || pp.blur != fnt->settings->blur || pp.shadowz != fnt->settings->shadowz);
	qboolean need_circle = (!pp.buf || pp.outline != fnt->settings->outline || pp.shadowx != fnt->settings->shadowx || pp.shadowy != fnt->settings->shadowy);
	pp.blur = fnt->settings->blur;
	pp.outline = fnt->settings->outline;
	pp.shadowx = fnt->settings->shadowx;
	pp.shadowy = fnt->settings->shadowy;
	pp.shadowz = fnt->settings->shadowz;
	pp.outlinepadding_l = bound(0, ceil(pp.outline - pp.shadowx), POSTPROCESS_MAXRADIUS);
	pp.outlinepadding_r = bound(0, ceil(pp.outline + pp.shadowx), POSTPROCESS_MAXRADIUS);
	pp.outlinepadding_t = bound(0, ceil(pp.outline - pp.shadowy), POSTPROCESS_MAXRADIUS);
	pp.outlinepadding_b = bound(0, ceil(pp.outline + pp.shadowy), POSTPROCESS_MAXRADIUS);
	pp.blurpadding_lt = bound(0, ceil(pp.blur - pp.shadowz), POSTPROCESS_MAXRADIUS);
	pp.blurpadding_rb = bound(0, ceil(pp.blur + pp.shadowz), POSTPROCESS_MAXRADIUS);
	pp.padding_l = pp.blurpadding_lt + pp.outlinepadding_l;
	pp.padding_r = pp.blurpadding_rb + pp.outlinepadding_r;
	pp.padding_t = pp.blurpadding_lt + pp.outlinepadding_t;
	pp.padding_b = pp.blurpadding_rb + pp.outlinepadding_b;
	if(need_gauss)
	{
		float sum = 0;
		for(x = -POSTPROCESS_MAXRADIUS; x <= POSTPROCESS_MAXRADIUS; ++x)
			gausstable[POSTPROCESS_MAXRADIUS+x] = (pp.blur > 0 ? exp(-(pow(x + pp.shadowz, 2))/(pp.blur*pp.blur * 2)) : (floor(x + pp.shadowz + 0.5) == 0));
		for(x = -pp.blurpadding_rb; x <= pp.blurpadding_lt; ++x)
			sum += gausstable[POSTPROCESS_MAXRADIUS+x];
		for(x = -POSTPROCESS_MAXRADIUS; x <= POSTPROCESS_MAXRADIUS; ++x)
			pp.gausstable[POSTPROCESS_MAXRADIUS+x] = floor(gausstable[POSTPROCESS_MAXRADIUS+x] / sum * 255 + 0.5);
	}
	if(need_circle)
	{
		for(y = -POSTPROCESS_MAXRADIUS; y <= POSTPROCESS_MAXRADIUS; ++y)
			for(x = -POSTPROCESS_MAXRADIUS; x <= POSTPROCESS_MAXRADIUS; ++x)
			{
				float d = pp.outline + 1 - sqrt(pow(x + pp.shadowx, 2) + pow(y + pp.shadowy, 2));
				pp.circlematrix[POSTPROCESS_MAXRADIUS+y][POSTPROCESS_MAXRADIUS+x] = (d >= 1) ? 255 : (d <= 0) ? 0 : floor(d * 255 + 0.5);
			}
	}
	pp.bufwidth = w + pp.padding_l + pp.padding_r;
	pp.bufheight = h + pp.padding_t + pp.padding_b;
	pp.bufpitch = pp.bufwidth;
	needed = pp.bufwidth * pp.bufheight;
	if(!pp.buf || pp.bufsize < needed * 2)
	{
		if(pp.buf)
			Mem_Free(pp.buf);
		pp.bufsize = needed * 4;
		pp.buf = (unsigned char *)Mem_Alloc(font_mempool, pp.bufsize);
		pp.buf2 = pp.buf + needed;
	}
}

static void Font_Postprocess(ft2_font_t *fnt, unsigned char *imagedata, int pitch, int bpp, int w, int h, int *pad_l, int *pad_r, int *pad_t, int *pad_b)
{
	int x, y;

	// calculate gauss table
	Font_Postprocess_Update(fnt, bpp, w, h);

	if(imagedata)
	{
		// enlarge buffer
		// perform operation, not exceeding the passed padding values,
		// but possibly reducing them
		*pad_l = min(*pad_l, pp.padding_l);
		*pad_r = min(*pad_r, pp.padding_r);
		*pad_t = min(*pad_t, pp.padding_t);
		*pad_b = min(*pad_b, pp.padding_b);

		// outline the font (RGBA only)
		if(bpp == 4 && (pp.outline > 0 || pp.blur > 0 || pp.shadowx != 0 || pp.shadowy != 0 || pp.shadowz != 0)) // we can only do this in BGRA
		{
			// this is like mplayer subtitle rendering
			// bbuffer, bitmap buffer: this is our font
			// abuffer, alpha buffer: this is pp.buf
			// tmp: this is pp.buf2

			// create outline buffer
			memset(pp.buf, 0, pp.bufwidth * pp.bufheight);
			for(y = -*pad_t; y < h + *pad_b; ++y)
				for(x = -*pad_l; x < w + *pad_r; ++x)
				{
					int x1 = max(-x, -pp.outlinepadding_r);
					int y1 = max(-y, -pp.outlinepadding_b);
					int x2 = min(pp.outlinepadding_l, w-1-x);
					int y2 = min(pp.outlinepadding_t, h-1-y);
					int mx, my;
					int cur = 0;
					int highest = 0;
					for(my = y1; my <= y2; ++my)
						for(mx = x1; mx <= x2; ++mx)
						{
							cur = pp.circlematrix[POSTPROCESS_MAXRADIUS+my][POSTPROCESS_MAXRADIUS+mx] * (int)imagedata[(x+mx) * bpp + pitch * (y+my) + (bpp - 1)];
							if(cur > highest)
								highest = cur;
						}
					pp.buf[((x + pp.padding_l) + pp.bufpitch * (y + pp.padding_t))] = (highest + 128) / 255;
				}

			// blur the outline buffer
			if(pp.blur > 0 || pp.shadowz != 0)
			{
				// horizontal blur
				for(y = 0; y < pp.bufheight; ++y)
					for(x = 0; x < pp.bufwidth; ++x)
					{
						int x1 = max(-x, -pp.blurpadding_rb);
						int x2 = min(pp.blurpadding_lt, pp.bufwidth-1-x);
						int mx;
						int blurred = 0;
						for(mx = x1; mx <= x2; ++mx)
							blurred += pp.gausstable[POSTPROCESS_MAXRADIUS+mx] * (int)pp.buf[(x+mx) + pp.bufpitch * y];
						pp.buf2[x + pp.bufpitch * y] = bound(0, blurred, 65025) / 255;
					}

				// vertical blur
				for(y = 0; y < pp.bufheight; ++y)
					for(x = 0; x < pp.bufwidth; ++x)
					{
						int y1 = max(-y, -pp.blurpadding_rb);
						int y2 = min(pp.blurpadding_lt, pp.bufheight-1-y);
						int my;
						int blurred = 0;
						for(my = y1; my <= y2; ++my)
							blurred += pp.gausstable[POSTPROCESS_MAXRADIUS+my] * (int)pp.buf2[x + pp.bufpitch * (y+my)];
						pp.buf[x + pp.bufpitch * y] = bound(0, blurred, 65025) / 255;
					}
			}

			// paste the outline below the font
			for(y = -*pad_t; y < h + *pad_b; ++y)
				for(x = -*pad_l; x < w + *pad_r; ++x)
				{
					unsigned char outlinealpha = pp.buf[(x + pp.padding_l) + pp.bufpitch * (y + pp.padding_t)];
					if(outlinealpha > 0)
					{
						unsigned char oldalpha = imagedata[x * bpp + pitch * y + (bpp - 1)];
						// a' = 1 - (1 - a1) (1 - a2)
						unsigned char newalpha = 255 - ((255 - (int)outlinealpha) * (255 - (int)oldalpha)) / 255; // this is >= oldalpha
						// c' = (a2 c2 - a1 a2 c1 + a1 c1) / a' = (a2 c2 + a1 (1 - a2) c1) / a'
						unsigned char oldfactor     = (255 * (int)oldalpha) / newalpha;
						//unsigned char outlinefactor = ((255 - oldalpha) * (int)outlinealpha) / newalpha;
						int i;
						for(i = 0; i < bpp-1; ++i)
						{
							unsigned char c = imagedata[x * bpp + pitch * y + i];
							c = (c * (int)oldfactor) / 255 /* + outlinecolor[i] * (int)outlinefactor */;
							imagedata[x * bpp + pitch * y + i] = c;
						}
						imagedata[x * bpp + pitch * y + (bpp - 1)] = newalpha;
					}
					//imagedata[x * bpp + pitch * y + (bpp - 1)] |= 0x80;
				}
		}
	}
	else if(pitch)
	{
		// perform operation, not exceeding the passed padding values,
		// but possibly reducing them
		*pad_l = min(*pad_l, pp.padding_l);
		*pad_r = min(*pad_r, pp.padding_r);
		*pad_t = min(*pad_t, pp.padding_t);
		*pad_b = min(*pad_b, pp.padding_b);
	}
	else
	{
		// just calculate parameters
		*pad_l = pp.padding_l;
		*pad_r = pp.padding_r;
		*pad_t = pp.padding_t;
		*pad_b = pp.padding_b;
	}
}

static float Font_SearchSize(ft2_font_t *font, FT_Face fontface, float size);
static qboolean Font_LoadMap(ft2_font_t *font, ft2_font_map_t *mapstart, Uchar _ch, ft2_font_map_t **outmap);
static qboolean Font_LoadSize(ft2_font_t *font, float size, qboolean check_only)
{
	int map_index;
	ft2_font_map_t *fmap, temp;
	int gpad_l, gpad_r, gpad_t, gpad_b;

	if (!(size > 0.001f && size < 1000.0f))
		size = 0;

	if (!size)
		size = 16;
	if (size < 2) // bogus sizes are not allowed - and they screw up our allocations
		return false;

	for (map_index = 0; map_index < MAX_FONT_SIZES; ++map_index)
	{
		if (!font->font_maps[map_index])
			break;
		// if a similar size has already been loaded, ignore this one
		//abs(font->font_maps[map_index]->size - size) < 4
		if (font->font_maps[map_index]->size == size)
			return true;
	}

	if (map_index >= MAX_FONT_SIZES)
		return false;

	if (check_only) {
		FT_Face fontface;
		if (font->image_font)
			fontface = (FT_Face)font->next->face;
		else
			fontface = (FT_Face)font->face;
		return (Font_SearchSize(font, fontface, size) > 0);
	}

	Font_Postprocess(font, NULL, 0, 4, size*2, size*2, &gpad_l, &gpad_r, &gpad_t, &gpad_b);

	memset(&temp, 0, sizeof(temp));
	temp.size = size;
	temp.glyphSize = size*2 + max(gpad_l + gpad_r, gpad_t + gpad_b);
	if (!(r_font_nonpoweroftwo.integer && vid.support.arb_texture_non_power_of_two))
		temp.glyphSize = CeilPowerOf2(temp.glyphSize);
	temp.sfx = (1.0/64.0)/(double)size;
	temp.sfy = (1.0/64.0)/(double)size;
	temp.intSize = -1; // negative value: LoadMap must search now :)
	if (!Font_LoadMap(font, &temp, 0, &fmap))
	{
		Con_Printf("ERROR: can't load the first character map for %s\n"
			   "This is fatal\n",
			   font->name);
		Font_UnloadFont(font);
		return false;
	}
	font->font_maps[map_index] = temp.next;

	fmap->sfx = temp.sfx;
	fmap->sfy = temp.sfy;

	// load the default kerning vector:
	if (font->has_kerning)
	{
		Uchar l, r;
		FT_Vector kernvec;
		for (l = 0; l < 256; ++l)
		{
			for (r = 0; r < 256; ++r)
			{
				FT_ULong ul, ur;
				ul = qFT_Get_Char_Index((FT_Face)font->face, l);
				ur = qFT_Get_Char_Index((FT_Face)font->face, r);
				if (qFT_Get_Kerning((FT_Face)font->face, ul, ur, FT_KERNING_DEFAULT, &kernvec))
				{
					fmap->kerning.kerning[l][r][0] = 0;
					fmap->kerning.kerning[l][r][1] = 0;
				}
				else
				{
					fmap->kerning.kerning[l][r][0] = Font_SnapTo((kernvec.x / 64.0) / fmap->size, 1 / fmap->size);
					fmap->kerning.kerning[l][r][1] = Font_SnapTo((kernvec.y / 64.0) / fmap->size, 1 / fmap->size);
				}
			}
		}
	}
	return true;
}

int Font_IndexForSize(ft2_font_t *font, float _fsize, float *outw, float *outh)
{
	int match = -1;
	float value = 1000000;
	float nval;
	int matchsize = -10000;
	int m;
	float fsize_x, fsize_y;
	ft2_font_map_t **maps = font->font_maps;

	fsize_x = fsize_y = _fsize * vid.height / vid_conheight.value;
	if(outw && *outw)
		fsize_x = *outw * vid.width / vid_conwidth.value;
	if(outh && *outh)
		fsize_y = *outh * vid.height / vid_conheight.value;

	if (fsize_x < 0)
	{
		if(fsize_y < 0)
			fsize_x = fsize_y = 16;
		else
			fsize_x = fsize_y;
	}
	else
	{
		if(fsize_y < 0)
			fsize_y = fsize_x;
	}

	for (m = 0; m < MAX_FONT_SIZES; ++m)
	{
		if (!maps[m])
			continue;
		// "round up" to the bigger size if two equally-valued matches exist
		nval = 0.5 * (fabs(maps[m]->size - fsize_x) + fabs(maps[m]->size - fsize_y));
		if (match == -1 || nval < value || (nval == value && matchsize < maps[m]->size))
		{
			value = nval;
			match = m;
			matchsize = maps[m]->size;
			if (value == 0) // there is no better match
				break;
		}
	}
	if (value <= r_font_size_snapping.value)
	{
		// do NOT keep the aspect for perfect rendering
		if (outh) *outh = maps[match]->size * vid_conheight.value / vid.height;
		if (outw) *outw = maps[match]->size * vid_conwidth.value / vid.width;
	}
	return match;
}

ft2_font_map_t *Font_MapForIndex(ft2_font_t *font, int index)
{
	if (index < 0 || index >= MAX_FONT_SIZES)
		return NULL;
	return font->font_maps[index];
}

static qboolean Font_SetSize(ft2_font_t *font, float w, float h)
{
	if (font->currenth == h &&
	    ((!w && (!font->currentw || font->currentw == font->currenth)) || // check if w==h when w is not set
	     font->currentw == w)) // same size has been requested
	{
		return true;
	}
	// sorry, but freetype doesn't seem to care about other sizes
	w = (int)w;
	h = (int)h;
	if (font->image_font)
	{
		if (qFT_Set_Char_Size((FT_Face)font->next->face, (FT_F26Dot6)(w*64), (FT_F26Dot6)(h*64), 72, 72))
			return false;
	}
	else
	{
		if (qFT_Set_Char_Size((FT_Face)font->face, (FT_F26Dot6)(w*64), (FT_F26Dot6)(h*64), 72, 72))
			return false;
	}
	font->currentw = w;
	font->currenth = h;
	return true;
}

qboolean Font_GetKerningForMap(ft2_font_t *font, int map_index, float w, float h, Uchar left, Uchar right, float *outx, float *outy)
{
	ft2_font_map_t *fmap;
	if (!font->has_kerning || !r_font_kerning.integer)
		return false;
	if (map_index < 0 || map_index >= MAX_FONT_SIZES)
		return false;
	fmap = font->font_maps[map_index];
	if (!fmap)
		return false;
	if (left < 256 && right < 256)
	{
		//Con_Printf("%g : %f, %f, %f :: %f\n", (w / (float)fmap->size), w, fmap->size, fmap->intSize, Font_VirtualToRealSize(w));
		// quick-kerning, be aware of the size: scale it
		if (outx) *outx = fmap->kerning.kerning[left][right][0];// * (w / (float)fmap->size);
		if (outy) *outy = fmap->kerning.kerning[left][right][1];// * (h / (float)fmap->size);
		return true;
	}
	else
	{
		FT_Vector kernvec;
		FT_ULong ul, ur;

		//if (qFT_Set_Pixel_Sizes((FT_Face)font->face, 0, fmap->size))
#if 0
		if (!Font_SetSize(font, w, h))
		{
			// this deserves an error message
			Con_Printf("Failed to get kerning for %s\n", font->name);
			return false;
		}
		ul = qFT_Get_Char_Index(font->face, left);
		ur = qFT_Get_Char_Index(font->face, right);
		if (qFT_Get_Kerning(font->face, ul, ur, FT_KERNING_DEFAULT, &kernvec))
		{
			if (outx) *outx = Font_SnapTo(kernvec.x * fmap->sfx, 1 / fmap->size);
			if (outy) *outy = Font_SnapTo(kernvec.y * fmap->sfy, 1 / fmap->size);
			return true;
		}
#endif
		if (!Font_SetSize(font, fmap->intSize, fmap->intSize))
		{
			// this deserves an error message
			Con_Printf("Failed to get kerning for %s\n", font->name);
			return false;
		}
		ul = qFT_Get_Char_Index((FT_Face)font->face, left);
		ur = qFT_Get_Char_Index((FT_Face)font->face, right);
		if (qFT_Get_Kerning((FT_Face)font->face, ul, ur, FT_KERNING_DEFAULT, &kernvec))
		{
			if (outx) *outx = Font_SnapTo(kernvec.x * fmap->sfx, 1 / fmap->size);// * (w / (float)fmap->size);
			if (outy) *outy = Font_SnapTo(kernvec.y * fmap->sfy, 1 / fmap->size);// * (h / (float)fmap->size);
			return true;
		}
		return false;
	}
}

qboolean Font_GetKerningForSize(ft2_font_t *font, float w, float h, Uchar left, Uchar right, float *outx, float *outy)
{
	return Font_GetKerningForMap(font, Font_IndexForSize(font, h, NULL, NULL), w, h, left, right, outx, outy);
}

static void UnloadMapRec(ft2_font_map_t *map)
{
	if (map->pic)
	{
		//Draw_FreePic(map->pic); // FIXME: refcounting needed...
		map->pic = NULL;
	}
	if (map->next)
		UnloadMapRec(map->next);
	Mem_Free(map);
}

void Font_UnloadFont(ft2_font_t *font)
{
	int i;

	// unload fallbacks
	if(font->next)
		Font_UnloadFont(font->next);

	if (font->attachments && font->attachmentcount)
	{
		for (i = 0; i < (int)font->attachmentcount; ++i) {
			if (font->attachments[i].data)
				fontfilecache_Free(font->attachments[i].data);
		}
		Mem_Free(font->attachments);
		font->attachmentcount = 0;
		font->attachments = NULL;
	}
	for (i = 0; i < MAX_FONT_SIZES; ++i)
	{
		if (font->font_maps[i])
		{
			UnloadMapRec(font->font_maps[i]);
			font->font_maps[i] = NULL;
		}
	}
#ifndef DP_FREETYPE_STATIC
	if (ft2_dll)
#else
	if (!r_font_disable_freetype.integer)
#endif
	{
		if (font->face)
		{
			qFT_Done_Face((FT_Face)font->face);
			font->face = NULL;
		}
	}
	if (font->data) {
	    fontfilecache_Free(font->data);
	    font->data = NULL;
	}
}

static float Font_SearchSize(ft2_font_t *font, FT_Face fontface, float size)
{
	float intSize = size;
	while (1)
	{
		if (!Font_SetSize(font, intSize, intSize))
		{
			Con_Printf("ERROR: can't set size for font %s: %f ((%f))\n", font->name, size, intSize);
			return -1;
		}
		if ((fontface->size->metrics.height>>6) <= size)
			return intSize;
		if (intSize < 2)
		{
			Con_Printf("ERROR: no appropriate size found for font %s: %f\n", font->name, size);
			return -1;
		}
		--intSize;
	}
}

static qboolean Font_LoadMap(ft2_font_t *font, ft2_font_map_t *mapstart, Uchar _ch, ft2_font_map_t **outmap)
{
	char map_identifier[MAX_QPATH];
	unsigned long mapidx = _ch / FONT_CHARS_PER_MAP;
	unsigned char *data = NULL;
	FT_ULong ch, mapch;
	int status;
	int tp;
	FT_Int32 load_flags;
	int gpad_l, gpad_r, gpad_t, gpad_b;
	char vabuf[1024];

	int pitch;
	int gR, gC; // glyph position: row and column

	ft2_font_map_t *map, *next;
	ft2_font_t *usefont;

	FT_Face fontface;

	int bytesPerPixel = 4; // change the conversion loop too if you change this!

	if (outmap)
		*outmap = NULL;

	if (r_font_use_alpha_textures.integer)
		bytesPerPixel = 1;

	if (font->image_font)
		fontface = (FT_Face)font->next->face;
	else
		fontface = (FT_Face)font->face;

	switch(font->settings->antialias)
	{
		case 0:
			switch(font->settings->hinting)
			{
				case 0:
					load_flags = FT_LOAD_NO_HINTING | FT_LOAD_NO_AUTOHINT | FT_LOAD_TARGET_MONO | FT_LOAD_MONOCHROME;
					break;
				case 1:
				case 2:
					load_flags = FT_LOAD_FORCE_AUTOHINT | FT_LOAD_TARGET_MONO | FT_LOAD_MONOCHROME;
					break;
				default:
				case 3:
					load_flags = FT_LOAD_TARGET_MONO | FT_LOAD_MONOCHROME;
					break;
			}
			break;
		default:
		case 1:
			switch(font->settings->hinting)
			{
				case 0:
					load_flags = FT_LOAD_NO_HINTING | FT_LOAD_NO_AUTOHINT | FT_LOAD_TARGET_NORMAL;
					break;
				case 1:
					load_flags = FT_LOAD_FORCE_AUTOHINT | FT_LOAD_TARGET_LIGHT;
					break;
				case 2:
					load_flags = FT_LOAD_FORCE_AUTOHINT | FT_LOAD_TARGET_NORMAL;
					break;
				default:
				case 3:
					load_flags = FT_LOAD_TARGET_NORMAL;
					break;
			}
			break;
	}

	//status = qFT_Set_Pixel_Sizes((FT_Face)font->face, /*size*/0, mapstart->size);
	//if (status)
	if (font->image_font && mapstart->intSize < 0)
		mapstart->intSize = mapstart->size;
	if (mapstart->intSize < 0)
	{
		/*
		mapstart->intSize = mapstart->size;
		while (1)
		{
			if (!Font_SetSize(font, mapstart->intSize, mapstart->intSize))
			{
				Con_Printf("ERROR: can't set size for font %s: %f ((%f))\n", font->name, mapstart->size, mapstart->intSize);
				return false;
			}
			if ((fontface->size->metrics.height>>6) <= mapstart->size)
				break;
			if (mapstart->intSize < 2)
			{
				Con_Printf("ERROR: no appropriate size found for font %s: %f\n", font->name, mapstart->size);
				return false;
			}
			--mapstart->intSize;
		}
		*/
		if ((mapstart->intSize = Font_SearchSize(font, fontface, mapstart->size)) <= 0)
			return false;
		Con_DPrintf("Using size: %f for requested size %f\n", mapstart->intSize, mapstart->size);
	}

	if (!font->image_font && !Font_SetSize(font, mapstart->intSize, mapstart->intSize))
	{
		Con_Printf("ERROR: can't set sizes for font %s: %f\n", font->name, mapstart->size);
		return false;
	}

	map = (ft2_font_map_t *)Mem_Alloc(font_mempool, sizeof(ft2_font_map_t));
	if (!map)
	{
		Con_Printf("ERROR: Out of memory when loading fontmap for %s\n", font->name);
		return false;
	}

	// create a totally unique name for this map, then we will use it to make a unique cachepic_t to avoid redundant textures
	dpsnprintf(map_identifier, sizeof(map_identifier),
		"%s_cache_%g_%d_%g_%g_%g_%g_%g_%u",
		font->name,
		(double) mapstart->intSize,
		(int) load_flags,
		(double) font->settings->blur,
		(double) font->settings->outline,
		(double) font->settings->shadowx,
		(double) font->settings->shadowy,
		(double) font->settings->shadowz,
		(unsigned) mapidx);

	// create a cachepic_t from the data now, or reuse an existing one
	map->pic = Draw_CachePic_Flags(map_identifier, CACHEPICFLAG_QUIET);
	if (developer_font.integer)
	{
		if (!Draw_IsPicLoaded(map->pic))
			Con_Printf("Generating font map %s (size: %.1f MB)\n", map_identifier, mapstart->glyphSize * (256 * 4 / 1048576.0) * mapstart->glyphSize);
		else
			Con_Printf("Using cached font map %s (size: %.1f MB)\n", map_identifier, mapstart->glyphSize * (256 * 4 / 1048576.0) * mapstart->glyphSize);
	}

	Font_Postprocess(font, NULL, 0, bytesPerPixel, mapstart->size*2, mapstart->size*2, &gpad_l, &gpad_r, &gpad_t, &gpad_b);

	// copy over the information
	map->size = mapstart->size;
	map->intSize = mapstart->intSize;
	map->glyphSize = mapstart->glyphSize;
	map->sfx = mapstart->sfx;
	map->sfy = mapstart->sfy;

	pitch = map->glyphSize * FONT_CHARS_PER_LINE * bytesPerPixel;
	if (!Draw_IsPicLoaded(map->pic))
	{
		data = (unsigned char *)Mem_Alloc(font_mempool, (FONT_CHAR_LINES * map->glyphSize) * pitch);
		if (!data)
		{
			Con_Printf("ERROR: Failed to allocate memory for font %s size %g\n", font->name, map->size);
			Mem_Free(map);
			return false;
		}
		// initialize as white texture with zero alpha
		tp = 0;
		while (tp < (FONT_CHAR_LINES * map->glyphSize) * pitch)
		{
			if (bytesPerPixel == 4)
			{
				data[tp++] = 0xFF;
				data[tp++] = 0xFF;
				data[tp++] = 0xFF;
			}
			data[tp++] = 0x00;
		}
	}

	memset(map->width_of, 0, sizeof(map->width_of));

	// insert the map
	map->start = mapidx * FONT_CHARS_PER_MAP;
	next = mapstart;
	while(next->next && next->next->start < map->start)
		next = next->next;
	map->next = next->next;
	next->next = map;

	gR = 0;
	gC = -1;
	for (ch = map->start;
	     ch < (FT_ULong)map->start + FONT_CHARS_PER_MAP;
	     ++ch)
	{
		FT_ULong glyphIndex;
		int w, h, x, y;
		FT_GlyphSlot glyph;
		FT_Bitmap *bmp;
		unsigned char *imagedata = NULL, *dst, *src;
		glyph_slot_t *mapglyph;
		FT_Face face;
		int pad_l, pad_r, pad_t, pad_b;

		mapch = ch - map->start;

		if (developer_font.integer)
			Con_DPrint("glyphinfo: ------------- GLYPH INFO -----------------\n");

		++gC;
		if (gC >= FONT_CHARS_PER_LINE)
		{
			gC -= FONT_CHARS_PER_LINE;
			++gR;
		}

		if (data)
		{
			imagedata = data + gR * pitch * map->glyphSize + gC * map->glyphSize * bytesPerPixel;
			imagedata += gpad_t * pitch + gpad_l * bytesPerPixel;
		}
		//status = qFT_Load_Char(face, ch, FT_LOAD_RENDER);
		// we need the glyphIndex
		face = (FT_Face)font->face;
		usefont = NULL;
		if (font->image_font && mapch == ch && img_fontmap[mapch])
		{
			map->glyphs[mapch].image = true;
			continue;
		}
		glyphIndex = qFT_Get_Char_Index(face, ch);
		if (glyphIndex == 0)
		{
			// by convention, 0 is the "missing-glyph"-glyph
			// try to load from a fallback font
			for(usefont = font->next; usefont != NULL; usefont = usefont->next)
			{
				if (!Font_SetSize(usefont, mapstart->intSize, mapstart->intSize))
					continue;
				// try that glyph
				face = (FT_Face)usefont->face;
				glyphIndex = qFT_Get_Char_Index(face, ch);
				if (glyphIndex == 0)
					continue;
				status = qFT_Load_Glyph(face, glyphIndex, FT_LOAD_RENDER | load_flags);
				if (status)
					continue;
				break;
			}
			if (!usefont)
			{
				//Con_Printf("failed to load fallback glyph for char %lx from font %s\n", (unsigned long)ch, font->name);
				// now we let it use the "missing-glyph"-glyph
				face = (FT_Face)font->face;
				glyphIndex = 0;
			}
		}

		if (!usefont)
		{
			usefont = font;
			face = (FT_Face)font->face;
			status = qFT_Load_Glyph(face, glyphIndex, FT_LOAD_RENDER | load_flags);
			if (status)
			{
				//Con_Printf("failed to load glyph %lu for %s\n", glyphIndex, font->name);
				Con_DPrintf("failed to load glyph for char %lx from font %s\n", (unsigned long)ch, font->name);
				continue;
			}
		}

		glyph = face->glyph;
		bmp = &glyph->bitmap;

		w = bmp->width;
		h = bmp->rows;

		if (w > (map->glyphSize - gpad_l - gpad_r) || h > (map->glyphSize - gpad_t - gpad_b)) {
			Con_Printf("WARNING: Glyph %lu is too big in font %s, size %g: %i x %i\n", ch, font->name, map->size, w, h);
			if (w > map->glyphSize)
				w = map->glyphSize - gpad_l - gpad_r;
			if (h > map->glyphSize)
				h = map->glyphSize;
		}

		if (imagedata)
		{
			switch (bmp->pixel_mode)
			{
			case FT_PIXEL_MODE_MONO:
				if (developer_font.integer)
					Con_DPrint("glyphinfo:   Pixel Mode: MONO\n");
				break;
			case FT_PIXEL_MODE_GRAY2:
				if (developer_font.integer)
					Con_DPrint("glyphinfo:   Pixel Mode: GRAY2\n");
				break;
			case FT_PIXEL_MODE_GRAY4:
				if (developer_font.integer)
					Con_DPrint("glyphinfo:   Pixel Mode: GRAY4\n");
				break;
			case FT_PIXEL_MODE_GRAY:
				if (developer_font.integer)
					Con_DPrint("glyphinfo:   Pixel Mode: GRAY\n");
				break;
			default:
				if (developer_font.integer)
					Con_DPrintf("glyphinfo:   Pixel Mode: Unknown: %i\n", bmp->pixel_mode);
				Mem_Free(data);
				Con_Printf("ERROR: Unrecognized pixel mode for font %s size %f: %i\n", font->name, mapstart->size, bmp->pixel_mode);
				return false;
			}
			for (y = 0; y < h; ++y)
			{
				dst = imagedata + y * pitch;
				src = bmp->buffer + y * bmp->pitch;

				switch (bmp->pixel_mode)
				{
				case FT_PIXEL_MODE_MONO:
					dst += bytesPerPixel - 1; // shift to alpha byte
					for (x = 0; x < bmp->width; x += 8)
					{
						unsigned char c = *src++;
						*dst = 255 * !!((c & 0x80) >> 7); dst += bytesPerPixel;
						*dst = 255 * !!((c & 0x40) >> 6); dst += bytesPerPixel;
						*dst = 255 * !!((c & 0x20) >> 5); dst += bytesPerPixel;
						*dst = 255 * !!((c & 0x10) >> 4); dst += bytesPerPixel;
						*dst = 255 * !!((c & 0x08) >> 3); dst += bytesPerPixel;
						*dst = 255 * !!((c & 0x04) >> 2); dst += bytesPerPixel;
						*dst = 255 * !!((c & 0x02) >> 1); dst += bytesPerPixel;
						*dst = 255 * !!((c & 0x01) >> 0); dst += bytesPerPixel;
					}
					break;
				case FT_PIXEL_MODE_GRAY2:
					dst += bytesPerPixel - 1; // shift to alpha byte
					for (x = 0; x < bmp->width; x += 4)
					{
						unsigned char c = *src++;
						*dst = ( ((c & 0xA0) >> 6) * 0x55 ); c <<= 2; dst += bytesPerPixel;
						*dst = ( ((c & 0xA0) >> 6) * 0x55 ); c <<= 2; dst += bytesPerPixel;
						*dst = ( ((c & 0xA0) >> 6) * 0x55 ); c <<= 2; dst += bytesPerPixel;
						*dst = ( ((c & 0xA0) >> 6) * 0x55 ); c <<= 2; dst += bytesPerPixel;
					}
					break;
				case FT_PIXEL_MODE_GRAY4:
					dst += bytesPerPixel - 1; // shift to alpha byte
					for (x = 0; x < bmp->width; x += 2)
					{
						unsigned char c = *src++;
						*dst = ( ((c & 0xF0) >> 4) * 0x11); dst += bytesPerPixel;
						*dst = ( ((c & 0x0F) ) * 0x11); dst += bytesPerPixel;
					}
					break;
				case FT_PIXEL_MODE_GRAY:
					// in this case pitch should equal width
					for (tp = 0; tp < bmp->pitch; ++tp)
						dst[(bytesPerPixel - 1) + tp*bytesPerPixel] = src[tp]; // copy the grey value into the alpha bytes

					//memcpy((void*)dst, (void*)src, bmp->pitch);
					//dst += bmp->pitch;
					break;
				default:
					break;
				}
			}

			pad_l = gpad_l;
			pad_r = gpad_r;
			pad_t = gpad_t;
			pad_b = gpad_b;
			Font_Postprocess(font, imagedata, pitch, bytesPerPixel, w, h, &pad_l, &pad_r, &pad_t, &pad_b);
		}
		else
		{
			pad_l = gpad_l;
			pad_r = gpad_r;
			pad_t = gpad_t;
			pad_b = gpad_b;
			Font_Postprocess(font, NULL, pitch, bytesPerPixel, w, h, &pad_l, &pad_r, &pad_t, &pad_b);
		}


		// now fill map->glyphs[ch - map->start]
		mapglyph = &map->glyphs[mapch];

		{
			// old way
			// double advance = (double)glyph->metrics.horiAdvance * map->sfx;

			double bearingX = (glyph->metrics.horiBearingX / 64.0) / map->size;
			//double bearingY = (glyph->metrics.horiBearingY >> 6) / map->size;
			double advance = (glyph->advance.x / 64.0) / map->size;
			//double mWidth = (glyph->metrics.width >> 6) / map->size;
			//double mHeight = (glyph->metrics.height >> 6) / map->size;

			mapglyph->txmin = ( (double)(gC * map->glyphSize) + (double)(gpad_l - pad_l) ) / ( (double)(map->glyphSize * FONT_CHARS_PER_LINE) );
			mapglyph->txmax = mapglyph->txmin + (double)(bmp->width + pad_l + pad_r) / ( (double)(map->glyphSize * FONT_CHARS_PER_LINE) );
			mapglyph->tymin = ( (double)(gR * map->glyphSize) + (double)(gpad_r - pad_r) ) / ( (double)(map->glyphSize * FONT_CHAR_LINES) );
			mapglyph->tymax = mapglyph->tymin + (double)(bmp->rows + pad_t + pad_b) / ( (double)(map->glyphSize * FONT_CHAR_LINES) );
			//mapglyph->vxmin = bearingX;
			//mapglyph->vxmax = bearingX + mWidth;
			mapglyph->vxmin = (glyph->bitmap_left - pad_l) / map->size;
			mapglyph->vxmax = mapglyph->vxmin + (bmp->width + pad_l + pad_r) / map->size; // don't ask
			//mapglyph->vymin = -bearingY;
			//mapglyph->vymax = mHeight - bearingY;
			mapglyph->vymin = (-glyph->bitmap_top - pad_t) / map->size;
			mapglyph->vymax = mapglyph->vymin + (bmp->rows + pad_t + pad_b) / map->size;
			//Con_Printf("dpi = %f %f (%f %d) %d %d\n", bmp->width / (mapglyph->vxmax - mapglyph->vxmin), bmp->rows / (mapglyph->vymax - mapglyph->vymin), map->size, map->glyphSize, (int)fontface->size->metrics.x_ppem, (int)fontface->size->metrics.y_ppem);
			//mapglyph->advance_x = advance * usefont->size;
			//mapglyph->advance_x = advance;
			mapglyph->advance_x = Font_SnapTo(advance, 1 / map->size);
			mapglyph->advance_y = 0;

			if (developer_font.integer)
			{
				Con_DPrintf("glyphinfo:   Glyph: %lu   at (%i, %i)\n", (unsigned long)ch, gC, gR);
				Con_DPrintf("glyphinfo:   %f, %f, %lu\n", bearingX, map->sfx, (unsigned long)glyph->metrics.horiBearingX);
				if (ch >= 32 && ch <= 128)
					Con_DPrintf("glyphinfo:   Character: %c\n", (int)ch);
				Con_DPrintf("glyphinfo:   Vertex info:\n");
				Con_DPrintf("glyphinfo:     X: ( %f  --  %f )\n", mapglyph->vxmin, mapglyph->vxmax);
				Con_DPrintf("glyphinfo:     Y: ( %f  --  %f )\n", mapglyph->vymin, mapglyph->vymax);
				Con_DPrintf("glyphinfo:   Texture info:\n");
				Con_DPrintf("glyphinfo:     S: ( %f  --  %f )\n", mapglyph->txmin, mapglyph->txmax);
				Con_DPrintf("glyphinfo:     T: ( %f  --  %f )\n", mapglyph->tymin, mapglyph->tymax);
				Con_DPrintf("glyphinfo:   Advance: %f, %f\n", mapglyph->advance_x, mapglyph->advance_y);
			}
		}
		map->glyphs[mapch].image = false;
	}

	if (!Draw_IsPicLoaded(map->pic))
	{
		int w = map->glyphSize * FONT_CHARS_PER_LINE;
		int h = map->glyphSize * FONT_CHAR_LINES;
		// update the pic returned by Draw_CachePic_Flags earlier to contain our texture
		Draw_NewPic(map_identifier, w, h, data, r_font_use_alpha_textures.integer ? TEXTYPE_ALPHA : TEXTYPE_RGBA, TEXF_ALPHA | (r_font_compress.integer > 0 ? TEXF_COMPRESS : 0));

		if (r_font_diskcache.integer >= 1)
		{
			// swap to BGRA for tga writing...
			int s = w * h;
			int x;
			int b;
			for (x = 0;x < s;x++)
			{
				b = data[x*4+0];
				data[x*4+0] = data[x*4+2];
				data[x*4+2] = b;
			}
			Image_WriteTGABGRA(va(vabuf, sizeof(vabuf), "%s.tga", map_identifier), w, h, data);
#ifndef USE_GLES2
			if (r_font_compress.integer && qglGetCompressedTexImageARB && Draw_IsPicLoaded(map->pic))
				R_SaveTextureDDSFile(Draw_GetPicTexture(map->pic), va(vabuf, sizeof(vabuf), "dds/%s.dds", map_identifier), r_texture_dds_save.integer < 2, true);
#endif
		}
	}

	if(data)
		Mem_Free(data);

	if (!Draw_IsPicLoaded(map->pic))
	{
		// if the first try isn't successful, keep it with a broken texture
		// otherwise we retry to load it every single frame where ft2 rendering is used
		// this would be bad...
		// only `data' must be freed
		Con_Printf("ERROR: Failed to generate texture for font %s size %f map %lu\n",
			   font->name, mapstart->size, mapidx);
		return false;
	}
	if (outmap)
		*outmap = map;
	return true;
}

qboolean Font_LoadMapForIndex(ft2_font_t *font, int map_index, Uchar _ch, ft2_font_map_t **outmap)
{
	if (map_index < 0 || map_index >= MAX_FONT_SIZES)
		return false;
	// the first map must have been loaded already
	if (!font->font_maps[map_index])
		return false;
	return Font_LoadMap(font, font->font_maps[map_index], _ch, outmap);
}

ft2_font_map_t *FontMap_FindForChar(ft2_font_map_t *start, Uchar ch)
{
	while (start && start->start + FONT_CHARS_PER_MAP <= ch)
		start = start->next;
	if (start && start->start > ch)
		return NULL;
	return start;
}