aboutsummaryrefslogtreecommitdiff
path: root/freetype/src/winfonts/winfnt.c
blob: 5931038201a33d9eb521e5e3320119fc1f83d2d7 (plain)
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
/***************************************************************************/
/*                                                                         */
/*  winfnt.c                                                               */
/*                                                                         */
/*    FreeType font driver for Windows FNT/FON files                       */
/*                                                                         */
/*  Copyright 1996-2004, 2006-2012 by                                      */
/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
/*  Copyright 2003 Huw D M Davies for Codeweavers                          */
/*  Copyright 2007 Dmitry Timoshkov for Codeweavers                        */
/*                                                                         */
/*  This file is part of the FreeType project, and may only be used,       */
/*  modified, and distributed under the terms of the FreeType project      */
/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
/*  this file you indicate that you have read the license and              */
/*  understand and accept it fully.                                        */
/*                                                                         */
/***************************************************************************/


#include <ft2build.h>
#include FT_WINFONTS_H
#include <freetype/internal/ftdebug.h>
#include <freetype/internal/ftstream.h>
#include <freetype/internal/ftobjs.h>
#include FT_TRUETYPE_IDS_H

#include "winfnt.h"
#include "fnterrs.h"
#include FT_SERVICE_WINFNT_H
#include FT_SERVICE_XFREE86_NAME_H

  /*************************************************************************/
  /*                                                                       */
  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
  /* messages during execution.                                            */
  /*                                                                       */
#undef  FT_COMPONENT
#define FT_COMPONENT  trace_winfnt


  static const FT_Frame_Field  winmz_header_fields[] =
  {
#undef  FT_STRUCTURE
#define FT_STRUCTURE  WinMZ_HeaderRec

    FT_FRAME_START( 64 ),
      FT_FRAME_USHORT_LE ( magic ),
      FT_FRAME_SKIP_BYTES( 29 * 2 ),
      FT_FRAME_ULONG_LE  ( lfanew ),
    FT_FRAME_END
  };

  static const FT_Frame_Field  winne_header_fields[] =
  {
#undef  FT_STRUCTURE
#define FT_STRUCTURE  WinNE_HeaderRec

    FT_FRAME_START( 40 ),
      FT_FRAME_USHORT_LE ( magic ),
      FT_FRAME_SKIP_BYTES( 34 ),
      FT_FRAME_USHORT_LE ( resource_tab_offset ),
      FT_FRAME_USHORT_LE ( rname_tab_offset ),
    FT_FRAME_END
  };

  static const FT_Frame_Field  winpe32_header_fields[] =
  {
#undef  FT_STRUCTURE
#define FT_STRUCTURE  WinPE32_HeaderRec

    FT_FRAME_START( 248 ),
      FT_FRAME_ULONG_LE  ( magic ),   /* PE00 */
      FT_FRAME_USHORT_LE ( machine ), /* 0x014c - i386 */
      FT_FRAME_USHORT_LE ( number_of_sections ),
      FT_FRAME_SKIP_BYTES( 12 ),
      FT_FRAME_USHORT_LE ( size_of_optional_header ),
      FT_FRAME_SKIP_BYTES( 2 ),
      FT_FRAME_USHORT_LE ( magic32 ), /* 0x10b */
      FT_FRAME_SKIP_BYTES( 110 ),
      FT_FRAME_ULONG_LE  ( rsrc_virtual_address ),
      FT_FRAME_ULONG_LE  ( rsrc_size ),
      FT_FRAME_SKIP_BYTES( 104 ),
    FT_FRAME_END
  };

  static const FT_Frame_Field  winpe32_section_fields[] =
  {
#undef  FT_STRUCTURE
#define FT_STRUCTURE  WinPE32_SectionRec

    FT_FRAME_START( 40 ),
      FT_FRAME_BYTES     ( name, 8 ),
      FT_FRAME_SKIP_BYTES( 4 ),
      FT_FRAME_ULONG_LE  ( virtual_address ),
      FT_FRAME_ULONG_LE  ( size_of_raw_data ),
      FT_FRAME_ULONG_LE  ( pointer_to_raw_data ),
      FT_FRAME_SKIP_BYTES( 16 ),
    FT_FRAME_END
  };

  static const FT_Frame_Field  winpe_rsrc_dir_fields[] =
  {
#undef  FT_STRUCTURE
#define FT_STRUCTURE  WinPE_RsrcDirRec

    FT_FRAME_START( 16 ),
      FT_FRAME_ULONG_LE ( characteristics ),
      FT_FRAME_ULONG_LE ( time_date_stamp ),
      FT_FRAME_USHORT_LE( major_version ),
      FT_FRAME_USHORT_LE( minor_version ),
      FT_FRAME_USHORT_LE( number_of_named_entries ),
      FT_FRAME_USHORT_LE( number_of_id_entries ),
    FT_FRAME_END
  };

  static const FT_Frame_Field  winpe_rsrc_dir_entry_fields[] =
  {
#undef  FT_STRUCTURE
#define FT_STRUCTURE  WinPE_RsrcDirEntryRec

    FT_FRAME_START( 8 ),
      FT_FRAME_ULONG_LE( name ),
      FT_FRAME_ULONG_LE( offset ),
    FT_FRAME_END
  };

  static const FT_Frame_Field  winpe_rsrc_data_entry_fields[] =
  {
#undef  FT_STRUCTURE
#define FT_STRUCTURE  WinPE_RsrcDataEntryRec

    FT_FRAME_START( 16 ),
      FT_FRAME_ULONG_LE( offset_to_data ),
      FT_FRAME_ULONG_LE( size ),
      FT_FRAME_ULONG_LE( code_page ),
      FT_FRAME_ULONG_LE( reserved ),
    FT_FRAME_END
  };

  static const FT_Frame_Field  winfnt_header_fields[] =
  {
#undef  FT_STRUCTURE
#define FT_STRUCTURE  FT_WinFNT_HeaderRec

    FT_FRAME_START( 148 ),
      FT_FRAME_USHORT_LE( version ),
      FT_FRAME_ULONG_LE ( file_size ),
      FT_FRAME_BYTES    ( copyright, 60 ),
      FT_FRAME_USHORT_LE( file_type ),
      FT_FRAME_USHORT_LE( nominal_point_size ),
      FT_FRAME_USHORT_LE( vertical_resolution ),
      FT_FRAME_USHORT_LE( horizontal_resolution ),
      FT_FRAME_USHORT_LE( ascent ),
      FT_FRAME_USHORT_LE( internal_leading ),
      FT_FRAME_USHORT_LE( external_leading ),
      FT_FRAME_BYTE     ( italic ),
      FT_FRAME_BYTE     ( underline ),
      FT_FRAME_BYTE     ( strike_out ),
      FT_FRAME_USHORT_LE( weight ),
      FT_FRAME_BYTE     ( charset ),
      FT_FRAME_USHORT_LE( pixel_width ),
      FT_FRAME_USHORT_LE( pixel_height ),
      FT_FRAME_BYTE     ( pitch_and_family ),
      FT_FRAME_USHORT_LE( avg_width ),
      FT_FRAME_USHORT_LE( max_width ),
      FT_FRAME_BYTE     ( first_char ),
      FT_FRAME_BYTE     ( last_char ),
      FT_FRAME_BYTE     ( default_char ),
      FT_FRAME_BYTE     ( break_char ),
      FT_FRAME_USHORT_LE( bytes_per_row ),
      FT_FRAME_ULONG_LE ( device_offset ),
      FT_FRAME_ULONG_LE ( face_name_offset ),
      FT_FRAME_ULONG_LE ( bits_pointer ),
      FT_FRAME_ULONG_LE ( bits_offset ),
      FT_FRAME_BYTE     ( reserved ),
      FT_FRAME_ULONG_LE ( flags ),
      FT_FRAME_USHORT_LE( A_space ),
      FT_FRAME_USHORT_LE( B_space ),
      FT_FRAME_USHORT_LE( C_space ),
      FT_FRAME_ULONG_LE ( color_table_offset ),
      FT_FRAME_BYTES    ( reserved1, 16 ),
    FT_FRAME_END
  };


  static void
  fnt_font_done( FNT_Face face )
  {
    FT_Memory  memory = FT_FACE( face )->memory;
    FT_Stream  stream = FT_FACE( face )->stream;
    FNT_Font   font   = face->font;


    if ( !font )
      return;

    if ( font->fnt_frame )
      FT_FRAME_RELEASE( font->fnt_frame );
    FT_FREE( font->family_name );

    FT_FREE( font );
    face->font = 0;
  }


  static FT_Error
  fnt_font_load( FNT_Font   font,
                 FT_Stream  stream )
  {
    FT_Error          error;
    FT_WinFNT_Header  header = &font->header;
    FT_Bool           new_format;
    FT_UInt           size;


    /* first of all, read the FNT header */
    if ( FT_STREAM_SEEK( font->offset )                        ||
         FT_STREAM_READ_FIELDS( winfnt_header_fields, header ) )
      goto Exit;

    /* check header */
    if ( header->version != 0x200 &&
         header->version != 0x300 )
    {
      FT_TRACE2(( "  not a Windows FNT file\n" ));
      error = FNT_Err_Unknown_File_Format;
      goto Exit;
    }

    new_format = FT_BOOL( font->header.version == 0x300 );
    size       = new_format ? 148 : 118;

    if ( header->file_size < size )
    {
      FT_TRACE2(( "  not a Windows FNT file\n" ));
      error = FNT_Err_Unknown_File_Format;
      goto Exit;
    }

    /* Version 2 doesn't have these fields */
    if ( header->version == 0x200 )
    {
      header->flags   = 0;
      header->A_space = 0;
      header->B_space = 0;
      header->C_space = 0;

      header->color_table_offset = 0;
    }

    if ( header->file_type & 1 )
    {
      FT_TRACE2(( "[can't handle vector FNT fonts]\n" ));
      error = FNT_Err_Unknown_File_Format;
      goto Exit;
    }

    /* this is a FNT file/table; extract its frame */
    if ( FT_STREAM_SEEK( font->offset )                         ||
         FT_FRAME_EXTRACT( header->file_size, font->fnt_frame ) )
      goto Exit;

  Exit:
    return error;
  }


  static FT_Error
  fnt_face_get_dll_font( FNT_Face  face,
                         FT_Int    face_index )
  {
    FT_Error         error;
    FT_Stream        stream = FT_FACE( face )->stream;
    FT_Memory        memory = FT_FACE( face )->memory;
    WinMZ_HeaderRec  mz_header;


    face->font = 0;

    /* does it begin with an MZ header? */
    if ( FT_STREAM_SEEK( 0 )                                      ||
         FT_STREAM_READ_FIELDS( winmz_header_fields, &mz_header ) )
      goto Exit;

    error = FNT_Err_Unknown_File_Format;
    if ( mz_header.magic == WINFNT_MZ_MAGIC )
    {
      /* yes, now look for an NE header in the file */
      WinNE_HeaderRec  ne_header;


      FT_TRACE2(( "MZ signature found\n" ));

      if ( FT_STREAM_SEEK( mz_header.lfanew )                       ||
           FT_STREAM_READ_FIELDS( winne_header_fields, &ne_header ) )
        goto Exit;

      error = FNT_Err_Unknown_File_Format;
      if ( ne_header.magic == WINFNT_NE_MAGIC )
      {
        /* good, now look into the resource table for each FNT resource */
        FT_ULong   res_offset  = mz_header.lfanew +
                                   ne_header.resource_tab_offset;
        FT_UShort  size_shift;
        FT_UShort  font_count  = 0;
        FT_ULong   font_offset = 0;


        FT_TRACE2(( "NE signature found\n" ));

        if ( FT_STREAM_SEEK( res_offset )                    ||
             FT_FRAME_ENTER( ne_header.rname_tab_offset -
                             ne_header.resource_tab_offset ) )
          goto Exit;

        size_shift = FT_GET_USHORT_LE();

        for (;;)
        {
          FT_UShort  type_id, count;


          type_id = FT_GET_USHORT_LE();
          if ( !type_id )
            break;

          count = FT_GET_USHORT_LE();

          if ( type_id == 0x8008U )
          {
            font_count  = count;
            font_offset = (FT_ULong)( FT_STREAM_POS() + 4 +
                                      ( stream->cursor - stream->limit ) );
            break;
          }

          stream->cursor += 4 + count * 12;
        }

        FT_FRAME_EXIT();

        if ( !font_count || !font_offset )
        {
          FT_TRACE2(( "this file doesn't contain any FNT resources\n" ));
          error = FNT_Err_Invalid_File_Format;
          goto Exit;
        }

        /* loading `winfnt_header_fields' needs at least 118 bytes;    */
        /* use this as a rough measure to check the expected font size */
        if ( font_count * 118UL > stream->size )
        {
          FT_TRACE2(( "invalid number of faces\n" ));
          error = FNT_Err_Invalid_File_Format;
          goto Exit;
        }

        face->root.num_faces = font_count;

        if ( face_index >= font_count )
        {
          error = FNT_Err_Invalid_Argument;
          goto Exit;
        }
        else if ( face_index < 0 )
          goto Exit;

        if ( FT_NEW( face->font ) )
          goto Exit;

        if ( FT_STREAM_SEEK( font_offset + face_index * 12 ) ||
             FT_FRAME_ENTER( 12 )                            )
          goto Fail;

        face->font->offset   = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
        face->font->fnt_size = (FT_ULong)FT_GET_USHORT_LE() << size_shift;

        stream->cursor += 8;

        FT_FRAME_EXIT();

        error = fnt_font_load( face->font, stream );
      }
      else if ( ne_header.magic == WINFNT_PE_MAGIC )
      {
        WinPE32_HeaderRec       pe32_header;
        WinPE32_SectionRec      pe32_section;
        WinPE_RsrcDirRec        root_dir, name_dir, lang_dir;
        WinPE_RsrcDirEntryRec   dir_entry1, dir_entry2, dir_entry3;
        WinPE_RsrcDataEntryRec  data_entry;

        FT_Long    root_dir_offset, name_dir_offset, lang_dir_offset;
        FT_UShort  i, j, k;


        FT_TRACE2(( "PE signature found\n" ));

        if ( FT_STREAM_SEEK( mz_header.lfanew )                           ||
             FT_STREAM_READ_FIELDS( winpe32_header_fields, &pe32_header ) )
          goto Exit;

        FT_TRACE2(( "magic %04lx, machine %02x, number_of_sections %u, "
                    "size_of_optional_header %02x\n"
                    "magic32 %02x, rsrc_virtual_address %04lx, "
                    "rsrc_size %04lx\n",
                    pe32_header.magic, pe32_header.machine,
                    pe32_header.number_of_sections,
                    pe32_header.size_of_optional_header,
                    pe32_header.magic32, pe32_header.rsrc_virtual_address,
                    pe32_header.rsrc_size ));

        if ( pe32_header.magic != WINFNT_PE_MAGIC /* check full signature */ ||
             pe32_header.machine != 0x014c /* i386 */                        ||
             pe32_header.size_of_optional_header != 0xe0 /* FIXME */         ||
             pe32_header.magic32 != 0x10b                                    )
        {
          FT_TRACE2(( "this file has an invalid PE header\n" ));
          error = FNT_Err_Invalid_File_Format;
          goto Exit;
        }

        face->root.num_faces = 0;

        for ( i = 0; i < pe32_header.number_of_sections; i++ )
        {
          if ( FT_STREAM_READ_FIELDS( winpe32_section_fields,
                                      &pe32_section ) )
            goto Exit;

          FT_TRACE2(( "name %.8s, va %04lx, size %04lx, offset %04lx\n",
                      pe32_section.name, pe32_section.virtual_address,
                      pe32_section.size_of_raw_data,
                      pe32_section.pointer_to_raw_data ));

          if ( pe32_header.rsrc_virtual_address ==
                 pe32_section.virtual_address )
            goto Found_rsrc_section;
        }

        FT_TRACE2(( "this file doesn't contain any resources\n" ));
        error = FNT_Err_Invalid_File_Format;
        goto Exit;

      Found_rsrc_section:
        FT_TRACE2(( "found resources section %.8s\n", pe32_section.name ));

        if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data )        ||
             FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &root_dir ) )
          goto Exit;

        root_dir_offset = pe32_section.pointer_to_raw_data;

        for ( i = 0; i < root_dir.number_of_named_entries +
                           root_dir.number_of_id_entries; i++ )
        {
          if ( FT_STREAM_SEEK( root_dir_offset + 16 + i * 8 )      ||
               FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
                                      &dir_entry1 )                )
            goto Exit;

          if ( !(dir_entry1.offset & 0x80000000UL ) /* DataIsDirectory */ )
          {
            error = FNT_Err_Invalid_File_Format;
            goto Exit;
          }

          dir_entry1.offset &= ~0x80000000UL;

          name_dir_offset = pe32_section.pointer_to_raw_data +
                            dir_entry1.offset;

          if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data +
                               dir_entry1.offset )                       ||
               FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &name_dir ) )
            goto Exit;

          for ( j = 0; j < name_dir.number_of_named_entries +
                             name_dir.number_of_id_entries; j++ )
          {
            if ( FT_STREAM_SEEK( name_dir_offset + 16 + j * 8 )      ||
                 FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
                                        &dir_entry2 )                )
              goto Exit;

            if ( !(dir_entry2.offset & 0x80000000UL ) /* DataIsDirectory */ )
            {
              error = FNT_Err_Invalid_File_Format;
              goto Exit;
            }

            dir_entry2.offset &= ~0x80000000UL;

            lang_dir_offset = pe32_section.pointer_to_raw_data +
                                dir_entry2.offset;

            if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data +
                                   dir_entry2.offset )                     ||
                 FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &lang_dir ) )
              goto Exit;

            for ( k = 0; k < lang_dir.number_of_named_entries +
                               lang_dir.number_of_id_entries; k++ )
            {
              if ( FT_STREAM_SEEK( lang_dir_offset + 16 + k * 8 )      ||
                   FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
                                          &dir_entry3 )                )
                goto Exit;

              if ( dir_entry2.offset & 0x80000000UL /* DataIsDirectory */ )
              {
                error = FNT_Err_Invalid_File_Format;
                goto Exit;
              }

              if ( dir_entry1.name == 8 /* RT_FONT */ )
              {
                if ( FT_STREAM_SEEK( root_dir_offset + dir_entry3.offset ) ||
                     FT_STREAM_READ_FIELDS( winpe_rsrc_data_entry_fields,
                                            &data_entry )                  )
                  goto Exit;

                FT_TRACE2(( "found font #%lu, offset %04lx, "
                            "size %04lx, cp %lu\n",
                            dir_entry2.name,
                            pe32_section.pointer_to_raw_data +
                              data_entry.offset_to_data -
                              pe32_section.virtual_address,
                            data_entry.size, data_entry.code_page ));

                if ( face_index == face->root.num_faces )
                {
                  if ( FT_NEW( face->font ) )
                    goto Exit;

                  face->font->offset   = pe32_section.pointer_to_raw_data +
                                           data_entry.offset_to_data -
                                           pe32_section.virtual_address;
                  face->font->fnt_size = data_entry.size;

                  error = fnt_font_load( face->font, stream );
                  if ( error )
                  {
                    FT_TRACE2(( "font #%lu load error %d\n",
                                dir_entry2.name, error ));
                    goto Fail;
                  }
                  else
                    FT_TRACE2(( "font #%lu successfully loaded\n",
                                dir_entry2.name ));
                }

                face->root.num_faces++;
              }
            }
          }
        }
      }

      if ( !face->root.num_faces )
      {
        FT_TRACE2(( "this file doesn't contain any RT_FONT resources\n" ));
        error = FNT_Err_Invalid_File_Format;
        goto Exit;
      }

      if ( face_index >= face->root.num_faces )
      {
        error = FNT_Err_Invalid_Argument;
        goto Exit;
      }
    }

  Fail:
    if ( error )
      fnt_font_done( face );

  Exit:
    return error;
  }


  typedef struct  FNT_CMapRec_
  {
    FT_CMapRec  cmap;
    FT_UInt32   first;
    FT_UInt32   count;

  } FNT_CMapRec, *FNT_CMap;


  static FT_Error
  fnt_cmap_init( FNT_CMap  cmap )
  {
    FNT_Face  face = (FNT_Face)FT_CMAP_FACE( cmap );
    FNT_Font  font = face->font;


    cmap->first = (FT_UInt32)  font->header.first_char;
    cmap->count = (FT_UInt32)( font->header.last_char - cmap->first + 1 );

    return 0;
  }


  static FT_UInt
  fnt_cmap_char_index( FNT_CMap   cmap,
                       FT_UInt32  char_code )
  {
    FT_UInt  gindex = 0;


    char_code -= cmap->first;
    if ( char_code < cmap->count )
      /* we artificially increase the glyph index; */
      /* FNT_Load_Glyph reverts to the right one   */
      gindex = (FT_UInt)( char_code + 1 );
    return gindex;
  }


  static FT_UInt32
  fnt_cmap_char_next( FNT_CMap    cmap,
                      FT_UInt32  *pchar_code )
  {
    FT_UInt    gindex = 0;
    FT_UInt32  result = 0;
    FT_UInt32  char_code = *pchar_code + 1;


    if ( char_code <= cmap->first )
    {
      result = cmap->first;
      gindex = 1;
    }
    else
    {
      char_code -= cmap->first;
      if ( char_code < cmap->count )
      {
        result = cmap->first + char_code;
        gindex = (FT_UInt)( char_code + 1 );
      }
    }

    *pchar_code = result;
    return gindex;
  }


  static const FT_CMap_ClassRec  fnt_cmap_class_rec =
  {
    sizeof ( FNT_CMapRec ),

    (FT_CMap_InitFunc)     fnt_cmap_init,
    (FT_CMap_DoneFunc)     NULL,
    (FT_CMap_CharIndexFunc)fnt_cmap_char_index,
    (FT_CMap_CharNextFunc) fnt_cmap_char_next,

    NULL, NULL, NULL, NULL, NULL
  };

  static FT_CMap_Class const  fnt_cmap_class = &fnt_cmap_class_rec;


  static void
  FNT_Face_Done( FT_Face  fntface )       /* FNT_Face */
  {
    FNT_Face   face = (FNT_Face)fntface;
    FT_Memory  memory;


    if ( !face )
      return;

    memory = FT_FACE_MEMORY( face );

    fnt_font_done( face );

    FT_FREE( fntface->available_sizes );
    fntface->num_fixed_sizes = 0;
  }


  static FT_Error
  FNT_Face_Init( FT_Stream      stream,
                 FT_Face        fntface,        /* FNT_Face */
                 FT_Int         face_index,
                 FT_Int         num_params,
                 FT_Parameter*  params )
  {
    FNT_Face   face   = (FNT_Face)fntface;
    FT_Error   error;
    FT_Memory  memory = FT_FACE_MEMORY( face );

    FT_UNUSED( num_params );
    FT_UNUSED( params );


    FT_TRACE2(( "Windows FNT driver\n" ));

    /* try to load font from a DLL */
    error = fnt_face_get_dll_font( face, face_index );
    if ( !error && face_index < 0 )
      goto Exit;

    if ( error == FNT_Err_Unknown_File_Format )
    {
      /* this didn't work; try to load a single FNT font */
      FNT_Font  font;

      if ( FT_NEW( face->font ) )
        goto Exit;

      fntface->num_faces = 1;

      font           = face->font;
      font->offset   = 0;
      font->fnt_size = stream->size;

      error = fnt_font_load( font, stream );

      if ( !error )
      {
        if ( face_index > 0 )
          error = FNT_Err_Invalid_Argument;
        else if ( face_index < 0 )
          goto Exit;
      }
    }

    if ( error )
      goto Fail;

    /* we now need to fill the root FT_Face fields */
    /* with relevant information                   */
    {
      FT_Face     root = FT_FACE( face );
      FNT_Font    font = face->font;
      FT_PtrDist  family_size;


      root->face_index = face_index;

      root->face_flags = FT_FACE_FLAG_FIXED_SIZES |
                         FT_FACE_FLAG_HORIZONTAL;

      if ( font->header.avg_width == font->header.max_width )
        root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;

      if ( font->header.italic )
        root->style_flags |= FT_STYLE_FLAG_ITALIC;

      if ( font->header.weight >= 800 )
        root->style_flags |= FT_STYLE_FLAG_BOLD;

      /* set up the `fixed_sizes' array */
      if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
        goto Fail;

      root->num_fixed_sizes = 1;

      {
        FT_Bitmap_Size*  bsize = root->available_sizes;
        FT_UShort        x_res, y_res;


        bsize->width  = font->header.avg_width;
        bsize->height = (FT_Short)(
          font->header.pixel_height + font->header.external_leading );
        bsize->size   = font->header.nominal_point_size << 6;

        x_res = font->header.horizontal_resolution;
        if ( !x_res )
          x_res = 72;

        y_res = font->header.vertical_resolution;
        if ( !y_res )
          y_res = 72;

        bsize->y_ppem = FT_MulDiv( bsize->size, y_res, 72 );
        bsize->y_ppem = FT_PIX_ROUND( bsize->y_ppem );

        /*
         * this reads:
         *
         * the nominal height is larger than the bbox's height
         *
         * => nominal_point_size contains incorrect value;
         *    use pixel_height as the nominal height
         */
        if ( bsize->y_ppem > ( font->header.pixel_height << 6 ) )
        {
          FT_TRACE2(( "use pixel_height as the nominal height\n" ));

          bsize->y_ppem = font->header.pixel_height << 6;
          bsize->size   = FT_MulDiv( bsize->y_ppem, 72, y_res );
        }

        bsize->x_ppem = FT_MulDiv( bsize->size, x_res, 72 );
        bsize->x_ppem = FT_PIX_ROUND( bsize->x_ppem );
      }

      {
        FT_CharMapRec  charmap;


        charmap.encoding    = FT_ENCODING_NONE;
        /* initial platform/encoding should indicate unset status? */
        charmap.platform_id = TT_PLATFORM_APPLE_UNICODE;
        charmap.encoding_id = TT_APPLE_ID_DEFAULT;
        charmap.face        = root;

        if ( font->header.charset == FT_WinFNT_ID_MAC )
        {
          charmap.encoding    = FT_ENCODING_APPLE_ROMAN;
          charmap.platform_id = TT_PLATFORM_MACINTOSH;
/*        charmap.encoding_id = TT_MAC_ID_ROMAN; */
        }

        error = FT_CMap_New( fnt_cmap_class,
                             NULL,
                             &charmap,
                             NULL );
        if ( error )
          goto Fail;

        /* Select default charmap */
        if ( root->num_charmaps )
          root->charmap = root->charmaps[0];
      }

      /* set up remaining flags */

      if ( font->header.last_char < font->header.first_char )
      {
        FT_TRACE2(( "invalid number of glyphs\n" ));
        error = FNT_Err_Invalid_File_Format;
        goto Fail;
      }

      /* reserve one slot for the .notdef glyph at index 0 */
      root->num_glyphs = font->header.last_char -
                         font->header.first_char + 1 + 1;

      if ( font->header.face_name_offset >= font->header.file_size )
      {
        FT_TRACE2(( "invalid family name offset\n" ));
        error = FNT_Err_Invalid_File_Format;
        goto Fail;
      }
      family_size = font->header.file_size - font->header.face_name_offset;
      /* Some broken fonts don't delimit the face name with a final */
      /* NULL byte -- the frame is erroneously one byte too small.  */
      /* We thus allocate one more byte, setting it explicitly to   */
      /* zero.                                                      */
      if ( FT_ALLOC( font->family_name, family_size + 1 ) )
        goto Fail;

      FT_MEM_COPY( font->family_name,
                   font->fnt_frame + font->header.face_name_offset,
                   family_size );

      font->family_name[family_size] = '\0';

      if ( FT_REALLOC( font->family_name,
                       family_size,
                       ft_strlen( font->family_name ) + 1 ) )
        goto Fail;

      root->family_name = font->family_name;
      root->style_name  = (char *)"Regular";

      if ( root->style_flags & FT_STYLE_FLAG_BOLD )
      {
        if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
          root->style_name = (char *)"Bold Italic";
        else
          root->style_name = (char *)"Bold";
      }
      else if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
        root->style_name = (char *)"Italic";
    }
    goto Exit;

  Fail:
    FNT_Face_Done( fntface );

  Exit:
    return error;
  }


  static FT_Error
  FNT_Size_Select( FT_Size   size,
                   FT_ULong  strike_index )
  {
    FNT_Face          face   = (FNT_Face)size->face;
    FT_WinFNT_Header  header = &face->font->header;

    FT_UNUSED( strike_index );


    FT_Select_Metrics( size->face, 0 );

    size->metrics.ascender    = header->ascent * 64;
    size->metrics.descender   = -( header->pixel_height -
                                   header->ascent ) * 64;
    size->metrics.max_advance = header->max_width * 64;

    return FNT_Err_Ok;
  }


  static FT_Error
  FNT_Size_Request( FT_Size          size,
                    FT_Size_Request  req )
  {
    FNT_Face          face    = (FNT_Face)size->face;
    FT_WinFNT_Header  header  = &face->font->header;
    FT_Bitmap_Size*   bsize   = size->face->available_sizes;
    FT_Error          error   = FNT_Err_Invalid_Pixel_Size;
    FT_Long           height;


    height = FT_REQUEST_HEIGHT( req );
    height = ( height + 32 ) >> 6;

    switch ( req->type )
    {
    case FT_SIZE_REQUEST_TYPE_NOMINAL:
      if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) )
        error = FNT_Err_Ok;
      break;

    case FT_SIZE_REQUEST_TYPE_REAL_DIM:
      if ( height == header->pixel_height )
        error = FNT_Err_Ok;
      break;

    default:
      error = FNT_Err_Unimplemented_Feature;
      break;
    }

    if ( error )
      return error;
    else
      return FNT_Size_Select( size, 0 );
  }


  static FT_Error
  FNT_Load_Glyph( FT_GlyphSlot  slot,
                  FT_Size       size,
                  FT_UInt       glyph_index,
                  FT_Int32      load_flags )
  {
    FNT_Face    face   = (FNT_Face)FT_SIZE_FACE( size );
    FNT_Font    font;
    FT_Error    error  = FNT_Err_Ok;
    FT_Byte*    p;
    FT_Int      len;
    FT_Bitmap*  bitmap = &slot->bitmap;
    FT_ULong    offset;
    FT_Bool     new_format;

    FT_UNUSED( load_flags );


    if ( !face )
    {
      error = FNT_Err_Invalid_Argument;
      goto Exit;
    }

    font = face->font;

    if ( !font ||
         glyph_index >= (FT_UInt)( FT_FACE( face )->num_glyphs ) )
    {
      error = FNT_Err_Invalid_Argument;
      goto Exit;
    }

    if ( glyph_index > 0 )
      glyph_index--;                           /* revert to real index */
    else
      glyph_index = font->header.default_char; /* the .notdef glyph */

    new_format = FT_BOOL( font->header.version == 0x300 );
    len        = new_format ? 6 : 4;

    /* jump to glyph entry */
    p = font->fnt_frame + ( new_format ? 148 : 118 ) + len * glyph_index;

    bitmap->width = FT_NEXT_SHORT_LE( p );

    if ( new_format )
      offset = FT_NEXT_ULONG_LE( p );
    else
      offset = FT_NEXT_USHORT_LE( p );

    if ( offset >= font->header.file_size )
    {
      FT_TRACE2(( "invalid FNT offset\n" ));
      error = FNT_Err_Invalid_File_Format;
      goto Exit;
    }

    /* jump to glyph data */
    p = font->fnt_frame + /* font->header.bits_offset */ + offset;

    /* allocate and build bitmap */
    {
      FT_Memory  memory = FT_FACE_MEMORY( slot->face );
      FT_Int     pitch  = ( bitmap->width + 7 ) >> 3;
      FT_Byte*   column;
      FT_Byte*   write;


      bitmap->pitch      = pitch;
      bitmap->rows       = font->header.pixel_height;
      bitmap->pixel_mode = FT_PIXEL_MODE_MONO;

      if ( offset + pitch * bitmap->rows >= font->header.file_size )
      {
        FT_TRACE2(( "invalid bitmap width\n" ));
        error = FNT_Err_Invalid_File_Format;
        goto Exit;
      }

      /* note: since glyphs are stored in columns and not in rows we */
      /*       can't use ft_glyphslot_set_bitmap                     */
      if ( FT_ALLOC_MULT( bitmap->buffer, pitch, bitmap->rows ) )
        goto Exit;

      column = (FT_Byte*)bitmap->buffer;

      for ( ; pitch > 0; pitch--, column++ )
      {
        FT_Byte*  limit = p + bitmap->rows;


        for ( write = column; p < limit; p++, write += bitmap->pitch )
          *write = *p;
      }
    }

    slot->internal->flags = FT_GLYPH_OWN_BITMAP;
    slot->bitmap_left     = 0;
    slot->bitmap_top      = font->header.ascent;
    slot->format          = FT_GLYPH_FORMAT_BITMAP;

    /* now set up metrics */
    slot->metrics.width        = bitmap->width << 6;
    slot->metrics.height       = bitmap->rows << 6;
    slot->metrics.horiAdvance  = bitmap->width << 6;
    slot->metrics.horiBearingX = 0;
    slot->metrics.horiBearingY = slot->bitmap_top << 6;

    ft_synthesize_vertical_metrics( &slot->metrics,
                                    bitmap->rows << 6 );

  Exit:
    return error;
  }


  static FT_Error
  winfnt_get_header( FT_Face               face,
                     FT_WinFNT_HeaderRec  *aheader )
  {
    FNT_Font  font = ((FNT_Face)face)->font;


    *aheader = font->header;

    return 0;
  }


  static const FT_Service_WinFntRec  winfnt_service_rec =
  {
    winfnt_get_header
  };

 /*
  *  SERVICE LIST
  *
  */

  static const FT_ServiceDescRec  winfnt_services[] =
  {
    { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_WINFNT },
    { FT_SERVICE_ID_WINFNT,    &winfnt_service_rec },
    { NULL, NULL }
  };


  static FT_Module_Interface
  winfnt_get_service( FT_Module         module,
                      const FT_String*  service_id )
  {
    FT_UNUSED( module );

    return ft_service_list_lookup( winfnt_services, service_id );
  }




  FT_CALLBACK_TABLE_DEF
  const FT_Driver_ClassRec  winfnt_driver_class =
  {
    {
      FT_MODULE_FONT_DRIVER        |
      FT_MODULE_DRIVER_NO_OUTLINES,
      sizeof ( FT_DriverRec ),

      "winfonts",
      0x10000L,
      0x20000L,

      0,

      0,                  /* FT_Module_Constructor */
      0,                  /* FT_Module_Destructor  */
      winfnt_get_service
    },

    sizeof ( FNT_FaceRec ),
    sizeof ( FT_SizeRec ),
    sizeof ( FT_GlyphSlotRec ),

    FNT_Face_Init,
    FNT_Face_Done,
    0,                    /* FT_Size_InitFunc */
    0,                    /* FT_Size_DoneFunc */
    0,                    /* FT_Slot_InitFunc */
    0,                    /* FT_Slot_DoneFunc */

#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
    ft_stub_set_char_sizes,
    ft_stub_set_pixel_sizes,
#endif
    FNT_Load_Glyph,

    0,                    /* FT_Face_GetKerningFunc  */
    0,                    /* FT_Face_AttachFunc      */
    0,                    /* FT_Face_GetAdvancesFunc */

    FNT_Size_Request,
    FNT_Size_Select
  };


/* END */