1
/***************************************************************************/
5
/* FreeType font driver for Windows FNT/FON files */
7
/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008 by */
8
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
9
/* Copyright 2003 Huw D M Davies for Codeweavers */
10
/* Copyright 2007 Dmitry Timoshkov for Codeweavers */
12
/* This file is part of the FreeType project, and may only be used, */
13
/* modified, and distributed under the terms of the FreeType project */
14
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
15
/* this file you indicate that you have read the license and */
16
/* understand and accept it fully. */
18
/***************************************************************************/
22
#include FT_WINFONTS_H
23
#include FT_INTERNAL_DEBUG_H
24
#include FT_INTERNAL_STREAM_H
25
#include FT_INTERNAL_OBJECTS_H
29
#include FT_SERVICE_WINFNT_H
30
#include FT_SERVICE_XFREE86_NAME_H
32
/*************************************************************************/
34
/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
35
/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
36
/* messages during execution. */
39
#define FT_COMPONENT trace_winfnt
42
static const FT_Frame_Field winmz_header_fields[] =
45
#define FT_STRUCTURE WinMZ_HeaderRec
48
FT_FRAME_USHORT_LE ( magic ),
49
FT_FRAME_SKIP_BYTES( 29 * 2 ),
50
FT_FRAME_ULONG_LE ( lfanew ),
54
static const FT_Frame_Field winne_header_fields[] =
57
#define FT_STRUCTURE WinNE_HeaderRec
60
FT_FRAME_USHORT_LE ( magic ),
61
FT_FRAME_SKIP_BYTES( 34 ),
62
FT_FRAME_USHORT_LE ( resource_tab_offset ),
63
FT_FRAME_USHORT_LE ( rname_tab_offset ),
67
static const FT_Frame_Field winpe32_header_fields[] =
70
#define FT_STRUCTURE WinPE32_HeaderRec
72
FT_FRAME_START( 248 ),
73
FT_FRAME_ULONG_LE ( magic ), /* PE00 */
74
FT_FRAME_USHORT_LE ( machine ), /* 0x014c - i386 */
75
FT_FRAME_USHORT_LE ( number_of_sections ),
76
FT_FRAME_SKIP_BYTES( 12 ),
77
FT_FRAME_USHORT_LE ( size_of_optional_header ),
78
FT_FRAME_SKIP_BYTES( 2 ),
79
FT_FRAME_USHORT_LE ( magic32 ), /* 0x10b */
80
FT_FRAME_SKIP_BYTES( 110 ),
81
FT_FRAME_ULONG_LE ( rsrc_virtual_address ),
82
FT_FRAME_ULONG_LE ( rsrc_size ),
83
FT_FRAME_SKIP_BYTES( 104 ),
87
static const FT_Frame_Field winpe32_section_fields[] =
90
#define FT_STRUCTURE WinPE32_SectionRec
93
FT_FRAME_BYTES ( name, 8 ),
94
FT_FRAME_SKIP_BYTES( 4 ),
95
FT_FRAME_ULONG_LE ( virtual_address ),
96
FT_FRAME_ULONG_LE ( size_of_raw_data ),
97
FT_FRAME_ULONG_LE ( pointer_to_raw_data ),
98
FT_FRAME_SKIP_BYTES( 16 ),
102
static const FT_Frame_Field winpe_rsrc_dir_fields[] =
105
#define FT_STRUCTURE WinPE_RsrcDirRec
107
FT_FRAME_START( 16 ),
108
FT_FRAME_ULONG_LE ( characteristics ),
109
FT_FRAME_ULONG_LE ( time_date_stamp ),
110
FT_FRAME_USHORT_LE( major_version ),
111
FT_FRAME_USHORT_LE( minor_version ),
112
FT_FRAME_USHORT_LE( number_of_named_entries ),
113
FT_FRAME_USHORT_LE( number_of_id_entries ),
117
static const FT_Frame_Field winpe_rsrc_dir_entry_fields[] =
120
#define FT_STRUCTURE WinPE_RsrcDirEntryRec
123
FT_FRAME_ULONG_LE( name ),
124
FT_FRAME_ULONG_LE( offset ),
128
static const FT_Frame_Field winpe_rsrc_data_entry_fields[] =
131
#define FT_STRUCTURE WinPE_RsrcDataEntryRec
133
FT_FRAME_START( 16 ),
134
FT_FRAME_ULONG_LE( offset_to_data ),
135
FT_FRAME_ULONG_LE( size ),
136
FT_FRAME_ULONG_LE( code_page ),
137
FT_FRAME_ULONG_LE( reserved ),
141
static const FT_Frame_Field winfnt_header_fields[] =
144
#define FT_STRUCTURE FT_WinFNT_HeaderRec
146
FT_FRAME_START( 148 ),
147
FT_FRAME_USHORT_LE( version ),
148
FT_FRAME_ULONG_LE ( file_size ),
149
FT_FRAME_BYTES ( copyright, 60 ),
150
FT_FRAME_USHORT_LE( file_type ),
151
FT_FRAME_USHORT_LE( nominal_point_size ),
152
FT_FRAME_USHORT_LE( vertical_resolution ),
153
FT_FRAME_USHORT_LE( horizontal_resolution ),
154
FT_FRAME_USHORT_LE( ascent ),
155
FT_FRAME_USHORT_LE( internal_leading ),
156
FT_FRAME_USHORT_LE( external_leading ),
157
FT_FRAME_BYTE ( italic ),
158
FT_FRAME_BYTE ( underline ),
159
FT_FRAME_BYTE ( strike_out ),
160
FT_FRAME_USHORT_LE( weight ),
161
FT_FRAME_BYTE ( charset ),
162
FT_FRAME_USHORT_LE( pixel_width ),
163
FT_FRAME_USHORT_LE( pixel_height ),
164
FT_FRAME_BYTE ( pitch_and_family ),
165
FT_FRAME_USHORT_LE( avg_width ),
166
FT_FRAME_USHORT_LE( max_width ),
167
FT_FRAME_BYTE ( first_char ),
168
FT_FRAME_BYTE ( last_char ),
169
FT_FRAME_BYTE ( default_char ),
170
FT_FRAME_BYTE ( break_char ),
171
FT_FRAME_USHORT_LE( bytes_per_row ),
172
FT_FRAME_ULONG_LE ( device_offset ),
173
FT_FRAME_ULONG_LE ( face_name_offset ),
174
FT_FRAME_ULONG_LE ( bits_pointer ),
175
FT_FRAME_ULONG_LE ( bits_offset ),
176
FT_FRAME_BYTE ( reserved ),
177
FT_FRAME_ULONG_LE ( flags ),
178
FT_FRAME_USHORT_LE( A_space ),
179
FT_FRAME_USHORT_LE( B_space ),
180
FT_FRAME_USHORT_LE( C_space ),
181
FT_FRAME_ULONG_LE ( color_table_offset ),
182
FT_FRAME_BYTES ( reserved1, 16 ),
188
fnt_font_done( FNT_Face face )
190
FT_Memory memory = FT_FACE( face )->memory;
191
FT_Stream stream = FT_FACE( face )->stream;
192
FNT_Font font = face->font;
198
if ( font->fnt_frame )
199
FT_FRAME_RELEASE( font->fnt_frame );
200
FT_FREE( font->family_name );
208
fnt_font_load( FNT_Font font,
212
FT_WinFNT_Header header = &font->header;
217
/* first of all, read the FNT header */
218
if ( FT_STREAM_SEEK( font->offset ) ||
219
FT_STREAM_READ_FIELDS( winfnt_header_fields, header ) )
223
if ( header->version != 0x200 &&
224
header->version != 0x300 )
226
FT_TRACE2(( "[not a valid FNT file]\n" ));
227
error = FNT_Err_Unknown_File_Format;
231
new_format = FT_BOOL( font->header.version == 0x300 );
232
size = new_format ? 148 : 118;
234
if ( header->file_size < size )
236
FT_TRACE2(( "[not a valid FNT file]\n" ));
237
error = FNT_Err_Unknown_File_Format;
241
/* Version 2 doesn't have these fields */
242
if ( header->version == 0x200 )
249
header->color_table_offset = 0;
252
if ( header->file_type & 1 )
254
FT_TRACE2(( "[can't handle vector FNT fonts]\n" ));
255
error = FNT_Err_Unknown_File_Format;
259
/* this is a FNT file/table; extract its frame */
260
if ( FT_STREAM_SEEK( font->offset ) ||
261
FT_FRAME_EXTRACT( header->file_size, font->fnt_frame ) )
270
fnt_face_get_dll_font( FNT_Face face,
274
FT_Stream stream = FT_FACE( face )->stream;
275
FT_Memory memory = FT_FACE( face )->memory;
276
WinMZ_HeaderRec mz_header;
281
/* does it begin with an MZ header? */
282
if ( FT_STREAM_SEEK( 0 ) ||
283
FT_STREAM_READ_FIELDS( winmz_header_fields, &mz_header ) )
286
error = FNT_Err_Unknown_File_Format;
287
if ( mz_header.magic == WINFNT_MZ_MAGIC )
289
/* yes, now look for an NE header in the file */
290
WinNE_HeaderRec ne_header;
293
FT_TRACE2(( "MZ signature found\n" ));
295
if ( FT_STREAM_SEEK( mz_header.lfanew ) ||
296
FT_STREAM_READ_FIELDS( winne_header_fields, &ne_header ) )
299
error = FNT_Err_Unknown_File_Format;
300
if ( ne_header.magic == WINFNT_NE_MAGIC )
302
/* good, now look into the resource table for each FNT resource */
303
FT_ULong res_offset = mz_header.lfanew +
304
ne_header.resource_tab_offset;
305
FT_UShort size_shift;
306
FT_UShort font_count = 0;
307
FT_ULong font_offset = 0;
310
FT_TRACE2(( "NE signature found\n" ));
312
if ( FT_STREAM_SEEK( res_offset ) ||
313
FT_FRAME_ENTER( ne_header.rname_tab_offset -
314
ne_header.resource_tab_offset ) )
317
size_shift = FT_GET_USHORT_LE();
321
FT_UShort type_id, count;
324
type_id = FT_GET_USHORT_LE();
328
count = FT_GET_USHORT_LE();
330
if ( type_id == 0x8008U )
333
font_offset = (FT_ULong)( FT_STREAM_POS() + 4 +
334
( stream->cursor - stream->limit ) );
338
stream->cursor += 4 + count * 12;
343
if ( !font_count || !font_offset )
345
FT_TRACE2(( "this file doesn't contain any FNT resources!\n" ));
346
error = FNT_Err_Invalid_File_Format;
350
/* loading `winfnt_header_fields' needs at least 118 bytes; */
351
/* use this as a rough measure to check the expected font size */
352
if ( font_count * 118UL > stream->size )
354
FT_TRACE2(( "invalid number of faces\n" ));
355
error = FNT_Err_Invalid_File_Format;
359
face->root.num_faces = font_count;
361
if ( face_index >= font_count )
363
error = FNT_Err_Invalid_Argument;
366
else if ( face_index < 0 )
369
if ( FT_NEW( face->font ) )
372
if ( FT_STREAM_SEEK( font_offset + face_index * 12 ) ||
373
FT_FRAME_ENTER( 12 ) )
376
face->font->offset = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
377
face->font->fnt_size = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
383
error = fnt_font_load( face->font, stream );
385
else if ( ne_header.magic == WINFNT_PE_MAGIC )
387
WinPE32_HeaderRec pe32_header;
388
WinPE32_SectionRec pe32_section;
389
WinPE_RsrcDirRec root_dir, name_dir, lang_dir;
390
WinPE_RsrcDirEntryRec dir_entry1, dir_entry2, dir_entry3;
391
WinPE_RsrcDataEntryRec data_entry;
393
FT_Long root_dir_offset, name_dir_offset, lang_dir_offset;
397
FT_TRACE2(( "PE signature found\n" ));
399
if ( FT_STREAM_SEEK( mz_header.lfanew ) ||
400
FT_STREAM_READ_FIELDS( winpe32_header_fields, &pe32_header ) )
403
FT_TRACE2(( "magic %04lx, machine %02x, number_of_sections %u, "
404
"size_of_optional_header %02x\n"
405
"magic32 %02x, rsrc_virtual_address %04lx, "
407
pe32_header.magic, pe32_header.machine,
408
pe32_header.number_of_sections,
409
pe32_header.size_of_optional_header,
410
pe32_header.magic32, pe32_header.rsrc_virtual_address,
411
pe32_header.rsrc_size ));
413
if ( pe32_header.magic != WINFNT_PE_MAGIC /* check full signature */ ||
414
pe32_header.machine != 0x014c /* i386 */ ||
415
pe32_header.size_of_optional_header != 0xe0 /* FIXME */ ||
416
pe32_header.magic32 != 0x10b )
418
FT_TRACE2(( "this file has an invalid PE header\n" ));
419
error = FNT_Err_Invalid_File_Format;
423
face->root.num_faces = 0;
425
for ( i = 0; i < pe32_header.number_of_sections; i++ )
427
if ( FT_STREAM_READ_FIELDS( winpe32_section_fields,
431
FT_TRACE2(( "name %.8s, va %04lx, size %04lx, offset %04lx\n",
432
pe32_section.name, pe32_section.virtual_address,
433
pe32_section.size_of_raw_data,
434
pe32_section.pointer_to_raw_data ));
436
if ( pe32_header.rsrc_virtual_address ==
437
pe32_section.virtual_address )
438
goto Found_rsrc_section;
441
FT_TRACE2(( "this file doesn't contain any resources\n" ));
442
error = FNT_Err_Invalid_File_Format;
446
FT_TRACE2(( "found resources section %.8s\n", pe32_section.name ));
448
if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data ) ||
449
FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &root_dir ) )
452
root_dir_offset = pe32_section.pointer_to_raw_data;
454
for ( i = 0; i < root_dir.number_of_named_entries +
455
root_dir.number_of_id_entries; i++ )
457
if ( FT_STREAM_SEEK( root_dir_offset + 16 + i * 8 ) ||
458
FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
462
if ( !(dir_entry1.offset & 0x80000000UL ) /* DataIsDirectory */ )
464
error = FNT_Err_Invalid_File_Format;
468
dir_entry1.offset &= ~0x80000000UL;
470
name_dir_offset = pe32_section.pointer_to_raw_data +
473
if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data +
474
dir_entry1.offset ) ||
475
FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &name_dir ) )
478
for ( j = 0; j < name_dir.number_of_named_entries +
479
name_dir.number_of_id_entries; j++ )
481
if ( FT_STREAM_SEEK( name_dir_offset + 16 + j * 8 ) ||
482
FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
486
if ( !(dir_entry2.offset & 0x80000000UL ) /* DataIsDirectory */ )
488
error = FNT_Err_Invalid_File_Format;
492
dir_entry2.offset &= ~0x80000000UL;
494
lang_dir_offset = pe32_section.pointer_to_raw_data +
497
if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data +
498
dir_entry2.offset ) ||
499
FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &lang_dir ) )
502
for ( k = 0; k < lang_dir.number_of_named_entries +
503
lang_dir.number_of_id_entries; k++ )
505
if ( FT_STREAM_SEEK( lang_dir_offset + 16 + k * 8 ) ||
506
FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
510
if ( dir_entry2.offset & 0x80000000UL /* DataIsDirectory */ )
512
error = FNT_Err_Invalid_File_Format;
516
if ( dir_entry1.name == 8 /* RT_FONT */ )
518
if ( FT_STREAM_SEEK( root_dir_offset + dir_entry3.offset ) ||
519
FT_STREAM_READ_FIELDS( winpe_rsrc_data_entry_fields,
523
FT_TRACE2(( "found font #%lu, offset %04lx, "
524
"size %04lx, cp %lu\n",
526
pe32_section.pointer_to_raw_data +
527
data_entry.offset_to_data -
528
pe32_section.virtual_address,
529
data_entry.size, data_entry.code_page ));
531
if ( face_index == face->root.num_faces )
533
if ( FT_NEW( face->font ) )
536
face->font->offset = pe32_section.pointer_to_raw_data +
537
data_entry.offset_to_data -
538
pe32_section.virtual_address;
539
face->font->fnt_size = data_entry.size;
541
error = fnt_font_load( face->font, stream );
544
FT_TRACE2(( "font #%lu load error %d\n",
545
dir_entry2.name, error ));
549
FT_TRACE2(( "font #%lu successfully loaded\n",
553
face->root.num_faces++;
560
if ( !face->root.num_faces )
562
FT_TRACE2(( "this file doesn't contain any RT_FONT resources\n" ));
563
error = FNT_Err_Invalid_File_Format;
567
if ( face_index >= face->root.num_faces )
569
error = FNT_Err_Invalid_Argument;
576
fnt_font_done( face );
583
typedef struct FNT_CMapRec_
589
} FNT_CMapRec, *FNT_CMap;
593
fnt_cmap_init( FNT_CMap cmap )
595
FNT_Face face = (FNT_Face)FT_CMAP_FACE( cmap );
596
FNT_Font font = face->font;
599
cmap->first = (FT_UInt32) font->header.first_char;
600
cmap->count = (FT_UInt32)( font->header.last_char - cmap->first + 1 );
607
fnt_cmap_char_index( FNT_CMap cmap,
608
FT_UInt32 char_code )
613
char_code -= cmap->first;
614
if ( char_code < cmap->count )
615
/* we artificially increase the glyph index; */
616
/* FNT_Load_Glyph reverts to the right one */
617
gindex = (FT_UInt)( char_code + 1 );
623
fnt_cmap_char_next( FNT_CMap cmap,
624
FT_UInt32 *pchar_code )
627
FT_UInt32 result = 0;
628
FT_UInt32 char_code = *pchar_code + 1;
631
if ( char_code <= cmap->first )
633
result = cmap->first;
638
char_code -= cmap->first;
639
if ( char_code < cmap->count )
641
result = cmap->first + char_code;
642
gindex = (FT_UInt)( char_code + 1 );
646
*pchar_code = result;
651
static const FT_CMap_ClassRec fnt_cmap_class_rec =
653
sizeof ( FNT_CMapRec ),
655
(FT_CMap_InitFunc) fnt_cmap_init,
656
(FT_CMap_DoneFunc) NULL,
657
(FT_CMap_CharIndexFunc)fnt_cmap_char_index,
658
(FT_CMap_CharNextFunc) fnt_cmap_char_next,
660
NULL, NULL, NULL, NULL, NULL
663
static FT_CMap_Class const fnt_cmap_class = &fnt_cmap_class_rec;
667
FNT_Face_Done( FNT_Face face )
675
memory = FT_FACE_MEMORY( face );
677
fnt_font_done( face );
679
FT_FREE( face->root.available_sizes );
680
face->root.num_fixed_sizes = 0;
685
FNT_Face_Init( FT_Stream stream,
689
FT_Parameter* params )
692
FT_Memory memory = FT_FACE_MEMORY( face );
694
FT_UNUSED( num_params );
698
/* try to load font from a DLL */
699
error = fnt_face_get_dll_font( face, face_index );
700
if ( !error && face_index < 0 )
703
if ( error == FNT_Err_Unknown_File_Format )
705
/* this didn't work; try to load a single FNT font */
708
if ( FT_NEW( face->font ) )
711
face->root.num_faces = 1;
715
font->fnt_size = stream->size;
717
error = fnt_font_load( font, stream );
721
if ( face_index > 0 )
722
error = FNT_Err_Invalid_Argument;
723
else if ( face_index < 0 )
731
/* we now need to fill the root FT_Face fields */
732
/* with relevant information */
734
FT_Face root = FT_FACE( face );
735
FNT_Font font = face->font;
736
FT_PtrDist family_size;
739
root->face_index = face_index;
741
root->face_flags = FT_FACE_FLAG_FIXED_SIZES |
742
FT_FACE_FLAG_HORIZONTAL;
744
if ( font->header.avg_width == font->header.max_width )
745
root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
747
if ( font->header.italic )
748
root->style_flags |= FT_STYLE_FLAG_ITALIC;
750
if ( font->header.weight >= 800 )
751
root->style_flags |= FT_STYLE_FLAG_BOLD;
753
/* set up the `fixed_sizes' array */
754
if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
757
root->num_fixed_sizes = 1;
760
FT_Bitmap_Size* bsize = root->available_sizes;
761
FT_UShort x_res, y_res;
764
bsize->width = font->header.avg_width;
765
bsize->height = (FT_Short)(
766
font->header.pixel_height + font->header.external_leading );
767
bsize->size = font->header.nominal_point_size << 6;
769
x_res = font->header.horizontal_resolution;
773
y_res = font->header.vertical_resolution;
777
bsize->y_ppem = FT_MulDiv( bsize->size, y_res, 72 );
778
bsize->y_ppem = FT_PIX_ROUND( bsize->y_ppem );
783
* the nominal height is larger than the bbox's height
785
* => nominal_point_size contains incorrect value;
786
* use pixel_height as the nominal height
788
if ( bsize->y_ppem > ( font->header.pixel_height << 6 ) )
790
FT_TRACE2(( "use pixel_height as the nominal height\n" ));
792
bsize->y_ppem = font->header.pixel_height << 6;
793
bsize->size = FT_MulDiv( bsize->y_ppem, 72, y_res );
796
bsize->x_ppem = FT_MulDiv( bsize->size, x_res, 72 );
797
bsize->x_ppem = FT_PIX_ROUND( bsize->x_ppem );
801
FT_CharMapRec charmap;
804
charmap.encoding = FT_ENCODING_NONE;
805
charmap.platform_id = 0;
806
charmap.encoding_id = 0;
809
if ( font->header.charset == FT_WinFNT_ID_MAC )
811
charmap.encoding = FT_ENCODING_APPLE_ROMAN;
812
charmap.platform_id = 1;
813
/* charmap.encoding_id = 0; */
816
error = FT_CMap_New( fnt_cmap_class,
823
/* Select default charmap */
824
if ( root->num_charmaps )
825
root->charmap = root->charmaps[0];
828
/* setup remaining flags */
830
/* reserve one slot for the .notdef glyph at index 0 */
831
root->num_glyphs = font->header.last_char -
832
font->header.first_char + 1 + 1;
834
if ( font->header.face_name_offset >= font->header.file_size )
836
FT_TRACE2(( "invalid family name offset!\n" ));
837
error = FNT_Err_Invalid_File_Format;
840
family_size = font->header.file_size - font->header.face_name_offset;
841
/* Some broken fonts don't delimit the face name with a final */
842
/* NULL byte -- the frame is erroneously one byte too small. */
843
/* We thus allocate one more byte, setting it explicitly to */
845
if ( FT_ALLOC( font->family_name, family_size + 1 ) )
848
FT_MEM_COPY( font->family_name,
849
font->fnt_frame + font->header.face_name_offset,
852
font->family_name[family_size] = '\0';
854
if ( FT_REALLOC( font->family_name,
856
ft_strlen( font->family_name ) + 1 ) )
859
root->family_name = font->family_name;
860
root->style_name = (char *)"Regular";
862
if ( root->style_flags & FT_STYLE_FLAG_BOLD )
864
if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
865
root->style_name = (char *)"Bold Italic";
867
root->style_name = (char *)"Bold";
869
else if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
870
root->style_name = (char *)"Italic";
875
FNT_Face_Done( face );
883
FNT_Size_Select( FT_Size size )
885
FNT_Face face = (FNT_Face)size->face;
886
FT_WinFNT_Header header = &face->font->header;
889
FT_Select_Metrics( size->face, 0 );
891
size->metrics.ascender = header->ascent * 64;
892
size->metrics.descender = -( header->pixel_height -
893
header->ascent ) * 64;
894
size->metrics.max_advance = header->max_width * 64;
901
FNT_Size_Request( FT_Size size,
902
FT_Size_Request req )
904
FNT_Face face = (FNT_Face)size->face;
905
FT_WinFNT_Header header = &face->font->header;
906
FT_Bitmap_Size* bsize = size->face->available_sizes;
907
FT_Error error = FNT_Err_Invalid_Pixel_Size;
911
height = FT_REQUEST_HEIGHT( req );
912
height = ( height + 32 ) >> 6;
916
case FT_SIZE_REQUEST_TYPE_NOMINAL:
917
if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) )
921
case FT_SIZE_REQUEST_TYPE_REAL_DIM:
922
if ( height == header->pixel_height )
927
error = FNT_Err_Unimplemented_Feature;
934
return FNT_Size_Select( size );
939
FNT_Load_Glyph( FT_GlyphSlot slot,
942
FT_Int32 load_flags )
944
FNT_Face face = (FNT_Face)FT_SIZE_FACE( size );
945
FNT_Font font = face->font;
946
FT_Error error = FNT_Err_Ok;
949
FT_Bitmap* bitmap = &slot->bitmap;
953
FT_UNUSED( load_flags );
956
if ( !face || !font ||
957
glyph_index >= (FT_UInt)( FT_FACE( face )->num_glyphs ) )
959
error = FNT_Err_Invalid_Argument;
963
if ( glyph_index > 0 )
964
glyph_index--; /* revert to real index */
966
glyph_index = font->header.default_char; /* the .notdef glyph */
968
new_format = FT_BOOL( font->header.version == 0x300 );
969
len = new_format ? 6 : 4;
971
/* jump to glyph entry */
972
p = font->fnt_frame + ( new_format ? 148 : 118 ) + len * glyph_index;
974
bitmap->width = FT_NEXT_SHORT_LE( p );
977
offset = FT_NEXT_ULONG_LE( p );
979
offset = FT_NEXT_USHORT_LE( p );
981
if ( offset >= font->header.file_size )
983
FT_TRACE2(( "invalid FNT offset!\n" ));
984
error = FNT_Err_Invalid_File_Format;
988
/* jump to glyph data */
989
p = font->fnt_frame + /* font->header.bits_offset */ + offset;
991
/* allocate and build bitmap */
993
FT_Memory memory = FT_FACE_MEMORY( slot->face );
994
FT_Int pitch = ( bitmap->width + 7 ) >> 3;
999
bitmap->pitch = pitch;
1000
bitmap->rows = font->header.pixel_height;
1001
bitmap->pixel_mode = FT_PIXEL_MODE_MONO;
1003
if ( offset + pitch * bitmap->rows >= font->header.file_size )
1005
FT_TRACE2(( "invalid bitmap width\n" ));
1006
error = FNT_Err_Invalid_File_Format;
1010
/* note: since glyphs are stored in columns and not in rows we */
1011
/* can't use ft_glyphslot_set_bitmap */
1012
if ( FT_ALLOC_MULT( bitmap->buffer, pitch, bitmap->rows ) )
1015
column = (FT_Byte*)bitmap->buffer;
1017
for ( ; pitch > 0; pitch--, column++ )
1019
FT_Byte* limit = p + bitmap->rows;
1022
for ( write = column; p < limit; p++, write += bitmap->pitch )
1027
slot->internal->flags = FT_GLYPH_OWN_BITMAP;
1028
slot->bitmap_left = 0;
1029
slot->bitmap_top = font->header.ascent;
1030
slot->format = FT_GLYPH_FORMAT_BITMAP;
1032
/* now set up metrics */
1033
slot->metrics.width = bitmap->width << 6;
1034
slot->metrics.height = bitmap->rows << 6;
1035
slot->metrics.horiAdvance = bitmap->width << 6;
1036
slot->metrics.horiBearingX = 0;
1037
slot->metrics.horiBearingY = slot->bitmap_top << 6;
1039
ft_synthesize_vertical_metrics( &slot->metrics,
1040
bitmap->rows << 6 );
1048
winfnt_get_header( FT_Face face,
1049
FT_WinFNT_HeaderRec *aheader )
1051
FNT_Font font = ((FNT_Face)face)->font;
1054
*aheader = font->header;
1060
static const FT_Service_WinFntRec winfnt_service_rec =
1070
static const FT_ServiceDescRec winfnt_services[] =
1072
{ FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_WINFNT },
1073
{ FT_SERVICE_ID_WINFNT, &winfnt_service_rec },
1078
static FT_Module_Interface
1079
winfnt_get_service( FT_Driver driver,
1080
const FT_String* service_id )
1082
FT_UNUSED( driver );
1084
return ft_service_list_lookup( winfnt_services, service_id );
1090
FT_CALLBACK_TABLE_DEF
1091
const FT_Driver_ClassRec winfnt_driver_class =
1094
FT_MODULE_FONT_DRIVER |
1095
FT_MODULE_DRIVER_NO_OUTLINES,
1096
sizeof ( FT_DriverRec ),
1104
(FT_Module_Constructor)0,
1105
(FT_Module_Destructor) 0,
1106
(FT_Module_Requester) winfnt_get_service
1109
sizeof( FNT_FaceRec ),
1110
sizeof( FT_SizeRec ),
1111
sizeof( FT_GlyphSlotRec ),
1113
(FT_Face_InitFunc) FNT_Face_Init,
1114
(FT_Face_DoneFunc) FNT_Face_Done,
1115
(FT_Size_InitFunc) 0,
1116
(FT_Size_DoneFunc) 0,
1117
(FT_Slot_InitFunc) 0,
1118
(FT_Slot_DoneFunc) 0,
1120
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
1121
ft_stub_set_char_sizes,
1122
ft_stub_set_pixel_sizes,
1124
(FT_Slot_LoadFunc) FNT_Load_Glyph,
1126
(FT_Face_GetKerningFunc) 0,
1127
(FT_Face_AttachFunc) 0,
1128
(FT_Face_GetAdvancesFunc) 0,
1130
(FT_Size_RequestFunc) FNT_Size_Request,
1131
(FT_Size_SelectFunc) FNT_Size_Select