1
/***************************************************************************/
5
/* FreeType font driver for Windows FNT/FON files */
7
/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010 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
26
#include FT_TRUETYPE_IDS_H
30
#include FT_SERVICE_WINFNT_H
31
#include FT_SERVICE_XFREE86_NAME_H
33
/*************************************************************************/
35
/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
36
/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
37
/* messages during execution. */
40
#define FT_COMPONENT trace_winfnt
43
static const FT_Frame_Field winmz_header_fields[] =
46
#define FT_STRUCTURE WinMZ_HeaderRec
49
FT_FRAME_USHORT_LE ( magic ),
50
FT_FRAME_SKIP_BYTES( 29 * 2 ),
51
FT_FRAME_ULONG_LE ( lfanew ),
55
static const FT_Frame_Field winne_header_fields[] =
58
#define FT_STRUCTURE WinNE_HeaderRec
61
FT_FRAME_USHORT_LE ( magic ),
62
FT_FRAME_SKIP_BYTES( 34 ),
63
FT_FRAME_USHORT_LE ( resource_tab_offset ),
64
FT_FRAME_USHORT_LE ( rname_tab_offset ),
68
static const FT_Frame_Field winpe32_header_fields[] =
71
#define FT_STRUCTURE WinPE32_HeaderRec
73
FT_FRAME_START( 248 ),
74
FT_FRAME_ULONG_LE ( magic ), /* PE00 */
75
FT_FRAME_USHORT_LE ( machine ), /* 0x014c - i386 */
76
FT_FRAME_USHORT_LE ( number_of_sections ),
77
FT_FRAME_SKIP_BYTES( 12 ),
78
FT_FRAME_USHORT_LE ( size_of_optional_header ),
79
FT_FRAME_SKIP_BYTES( 2 ),
80
FT_FRAME_USHORT_LE ( magic32 ), /* 0x10b */
81
FT_FRAME_SKIP_BYTES( 110 ),
82
FT_FRAME_ULONG_LE ( rsrc_virtual_address ),
83
FT_FRAME_ULONG_LE ( rsrc_size ),
84
FT_FRAME_SKIP_BYTES( 104 ),
88
static const FT_Frame_Field winpe32_section_fields[] =
91
#define FT_STRUCTURE WinPE32_SectionRec
94
FT_FRAME_BYTES ( name, 8 ),
95
FT_FRAME_SKIP_BYTES( 4 ),
96
FT_FRAME_ULONG_LE ( virtual_address ),
97
FT_FRAME_ULONG_LE ( size_of_raw_data ),
98
FT_FRAME_ULONG_LE ( pointer_to_raw_data ),
99
FT_FRAME_SKIP_BYTES( 16 ),
103
static const FT_Frame_Field winpe_rsrc_dir_fields[] =
106
#define FT_STRUCTURE WinPE_RsrcDirRec
108
FT_FRAME_START( 16 ),
109
FT_FRAME_ULONG_LE ( characteristics ),
110
FT_FRAME_ULONG_LE ( time_date_stamp ),
111
FT_FRAME_USHORT_LE( major_version ),
112
FT_FRAME_USHORT_LE( minor_version ),
113
FT_FRAME_USHORT_LE( number_of_named_entries ),
114
FT_FRAME_USHORT_LE( number_of_id_entries ),
118
static const FT_Frame_Field winpe_rsrc_dir_entry_fields[] =
121
#define FT_STRUCTURE WinPE_RsrcDirEntryRec
124
FT_FRAME_ULONG_LE( name ),
125
FT_FRAME_ULONG_LE( offset ),
129
static const FT_Frame_Field winpe_rsrc_data_entry_fields[] =
132
#define FT_STRUCTURE WinPE_RsrcDataEntryRec
134
FT_FRAME_START( 16 ),
135
FT_FRAME_ULONG_LE( offset_to_data ),
136
FT_FRAME_ULONG_LE( size ),
137
FT_FRAME_ULONG_LE( code_page ),
138
FT_FRAME_ULONG_LE( reserved ),
142
static const FT_Frame_Field winfnt_header_fields[] =
145
#define FT_STRUCTURE FT_WinFNT_HeaderRec
147
FT_FRAME_START( 148 ),
148
FT_FRAME_USHORT_LE( version ),
149
FT_FRAME_ULONG_LE ( file_size ),
150
FT_FRAME_BYTES ( copyright, 60 ),
151
FT_FRAME_USHORT_LE( file_type ),
152
FT_FRAME_USHORT_LE( nominal_point_size ),
153
FT_FRAME_USHORT_LE( vertical_resolution ),
154
FT_FRAME_USHORT_LE( horizontal_resolution ),
155
FT_FRAME_USHORT_LE( ascent ),
156
FT_FRAME_USHORT_LE( internal_leading ),
157
FT_FRAME_USHORT_LE( external_leading ),
158
FT_FRAME_BYTE ( italic ),
159
FT_FRAME_BYTE ( underline ),
160
FT_FRAME_BYTE ( strike_out ),
161
FT_FRAME_USHORT_LE( weight ),
162
FT_FRAME_BYTE ( charset ),
163
FT_FRAME_USHORT_LE( pixel_width ),
164
FT_FRAME_USHORT_LE( pixel_height ),
165
FT_FRAME_BYTE ( pitch_and_family ),
166
FT_FRAME_USHORT_LE( avg_width ),
167
FT_FRAME_USHORT_LE( max_width ),
168
FT_FRAME_BYTE ( first_char ),
169
FT_FRAME_BYTE ( last_char ),
170
FT_FRAME_BYTE ( default_char ),
171
FT_FRAME_BYTE ( break_char ),
172
FT_FRAME_USHORT_LE( bytes_per_row ),
173
FT_FRAME_ULONG_LE ( device_offset ),
174
FT_FRAME_ULONG_LE ( face_name_offset ),
175
FT_FRAME_ULONG_LE ( bits_pointer ),
176
FT_FRAME_ULONG_LE ( bits_offset ),
177
FT_FRAME_BYTE ( reserved ),
178
FT_FRAME_ULONG_LE ( flags ),
179
FT_FRAME_USHORT_LE( A_space ),
180
FT_FRAME_USHORT_LE( B_space ),
181
FT_FRAME_USHORT_LE( C_space ),
182
FT_FRAME_ULONG_LE ( color_table_offset ),
183
FT_FRAME_BYTES ( reserved1, 16 ),
189
fnt_font_done( FNT_Face face )
191
FT_Memory memory = FT_FACE( face )->memory;
192
FT_Stream stream = FT_FACE( face )->stream;
193
FNT_Font font = face->font;
199
if ( font->fnt_frame )
200
FT_FRAME_RELEASE( font->fnt_frame );
201
FT_FREE( font->family_name );
209
fnt_font_load( FNT_Font font,
213
FT_WinFNT_Header header = &font->header;
218
/* first of all, read the FNT header */
219
if ( FT_STREAM_SEEK( font->offset ) ||
220
FT_STREAM_READ_FIELDS( winfnt_header_fields, header ) )
224
if ( header->version != 0x200 &&
225
header->version != 0x300 )
227
FT_TRACE2(( "[not a valid FNT file]\n" ));
228
error = FNT_Err_Unknown_File_Format;
232
new_format = FT_BOOL( font->header.version == 0x300 );
233
size = new_format ? 148 : 118;
235
if ( header->file_size < size )
237
FT_TRACE2(( "[not a valid FNT file]\n" ));
238
error = FNT_Err_Unknown_File_Format;
242
/* Version 2 doesn't have these fields */
243
if ( header->version == 0x200 )
250
header->color_table_offset = 0;
253
if ( header->file_type & 1 )
255
FT_TRACE2(( "[can't handle vector FNT fonts]\n" ));
256
error = FNT_Err_Unknown_File_Format;
260
/* this is a FNT file/table; extract its frame */
261
if ( FT_STREAM_SEEK( font->offset ) ||
262
FT_FRAME_EXTRACT( header->file_size, font->fnt_frame ) )
271
fnt_face_get_dll_font( FNT_Face face,
275
FT_Stream stream = FT_FACE( face )->stream;
276
FT_Memory memory = FT_FACE( face )->memory;
277
WinMZ_HeaderRec mz_header;
282
/* does it begin with an MZ header? */
283
if ( FT_STREAM_SEEK( 0 ) ||
284
FT_STREAM_READ_FIELDS( winmz_header_fields, &mz_header ) )
287
error = FNT_Err_Unknown_File_Format;
288
if ( mz_header.magic == WINFNT_MZ_MAGIC )
290
/* yes, now look for an NE header in the file */
291
WinNE_HeaderRec ne_header;
294
FT_TRACE2(( "MZ signature found\n" ));
296
if ( FT_STREAM_SEEK( mz_header.lfanew ) ||
297
FT_STREAM_READ_FIELDS( winne_header_fields, &ne_header ) )
300
error = FNT_Err_Unknown_File_Format;
301
if ( ne_header.magic == WINFNT_NE_MAGIC )
303
/* good, now look into the resource table for each FNT resource */
304
FT_ULong res_offset = mz_header.lfanew +
305
ne_header.resource_tab_offset;
306
FT_UShort size_shift;
307
FT_UShort font_count = 0;
308
FT_ULong font_offset = 0;
311
FT_TRACE2(( "NE signature found\n" ));
313
if ( FT_STREAM_SEEK( res_offset ) ||
314
FT_FRAME_ENTER( ne_header.rname_tab_offset -
315
ne_header.resource_tab_offset ) )
318
size_shift = FT_GET_USHORT_LE();
322
FT_UShort type_id, count;
325
type_id = FT_GET_USHORT_LE();
329
count = FT_GET_USHORT_LE();
331
if ( type_id == 0x8008U )
334
font_offset = (FT_ULong)( FT_STREAM_POS() + 4 +
335
( stream->cursor - stream->limit ) );
339
stream->cursor += 4 + count * 12;
344
if ( !font_count || !font_offset )
346
FT_TRACE2(( "this file doesn't contain any FNT resources\n" ));
347
error = FNT_Err_Invalid_File_Format;
351
/* loading `winfnt_header_fields' needs at least 118 bytes; */
352
/* use this as a rough measure to check the expected font size */
353
if ( font_count * 118UL > stream->size )
355
FT_TRACE2(( "invalid number of faces\n" ));
356
error = FNT_Err_Invalid_File_Format;
360
face->root.num_faces = font_count;
362
if ( face_index >= font_count )
364
error = FNT_Err_Invalid_Argument;
367
else if ( face_index < 0 )
370
if ( FT_NEW( face->font ) )
373
if ( FT_STREAM_SEEK( font_offset + face_index * 12 ) ||
374
FT_FRAME_ENTER( 12 ) )
377
face->font->offset = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
378
face->font->fnt_size = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
384
error = fnt_font_load( face->font, stream );
386
else if ( ne_header.magic == WINFNT_PE_MAGIC )
388
WinPE32_HeaderRec pe32_header;
389
WinPE32_SectionRec pe32_section;
390
WinPE_RsrcDirRec root_dir, name_dir, lang_dir;
391
WinPE_RsrcDirEntryRec dir_entry1, dir_entry2, dir_entry3;
392
WinPE_RsrcDataEntryRec data_entry;
394
FT_Long root_dir_offset, name_dir_offset, lang_dir_offset;
398
FT_TRACE2(( "PE signature found\n" ));
400
if ( FT_STREAM_SEEK( mz_header.lfanew ) ||
401
FT_STREAM_READ_FIELDS( winpe32_header_fields, &pe32_header ) )
404
FT_TRACE2(( "magic %04lx, machine %02x, number_of_sections %u, "
405
"size_of_optional_header %02x\n"
406
"magic32 %02x, rsrc_virtual_address %04lx, "
408
pe32_header.magic, pe32_header.machine,
409
pe32_header.number_of_sections,
410
pe32_header.size_of_optional_header,
411
pe32_header.magic32, pe32_header.rsrc_virtual_address,
412
pe32_header.rsrc_size ));
414
if ( pe32_header.magic != WINFNT_PE_MAGIC /* check full signature */ ||
415
pe32_header.machine != 0x014c /* i386 */ ||
416
pe32_header.size_of_optional_header != 0xe0 /* FIXME */ ||
417
pe32_header.magic32 != 0x10b )
419
FT_TRACE2(( "this file has an invalid PE header\n" ));
420
error = FNT_Err_Invalid_File_Format;
424
face->root.num_faces = 0;
426
for ( i = 0; i < pe32_header.number_of_sections; i++ )
428
if ( FT_STREAM_READ_FIELDS( winpe32_section_fields,
432
FT_TRACE2(( "name %.8s, va %04lx, size %04lx, offset %04lx\n",
433
pe32_section.name, pe32_section.virtual_address,
434
pe32_section.size_of_raw_data,
435
pe32_section.pointer_to_raw_data ));
437
if ( pe32_header.rsrc_virtual_address ==
438
pe32_section.virtual_address )
439
goto Found_rsrc_section;
442
FT_TRACE2(( "this file doesn't contain any resources\n" ));
443
error = FNT_Err_Invalid_File_Format;
447
FT_TRACE2(( "found resources section %.8s\n", pe32_section.name ));
449
if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data ) ||
450
FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &root_dir ) )
453
root_dir_offset = pe32_section.pointer_to_raw_data;
455
for ( i = 0; i < root_dir.number_of_named_entries +
456
root_dir.number_of_id_entries; i++ )
458
if ( FT_STREAM_SEEK( root_dir_offset + 16 + i * 8 ) ||
459
FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
463
if ( !(dir_entry1.offset & 0x80000000UL ) /* DataIsDirectory */ )
465
error = FNT_Err_Invalid_File_Format;
469
dir_entry1.offset &= ~0x80000000UL;
471
name_dir_offset = pe32_section.pointer_to_raw_data +
474
if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data +
475
dir_entry1.offset ) ||
476
FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &name_dir ) )
479
for ( j = 0; j < name_dir.number_of_named_entries +
480
name_dir.number_of_id_entries; j++ )
482
if ( FT_STREAM_SEEK( name_dir_offset + 16 + j * 8 ) ||
483
FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
487
if ( !(dir_entry2.offset & 0x80000000UL ) /* DataIsDirectory */ )
489
error = FNT_Err_Invalid_File_Format;
493
dir_entry2.offset &= ~0x80000000UL;
495
lang_dir_offset = pe32_section.pointer_to_raw_data +
498
if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data +
499
dir_entry2.offset ) ||
500
FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &lang_dir ) )
503
for ( k = 0; k < lang_dir.number_of_named_entries +
504
lang_dir.number_of_id_entries; k++ )
506
if ( FT_STREAM_SEEK( lang_dir_offset + 16 + k * 8 ) ||
507
FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
511
if ( dir_entry2.offset & 0x80000000UL /* DataIsDirectory */ )
513
error = FNT_Err_Invalid_File_Format;
517
if ( dir_entry1.name == 8 /* RT_FONT */ )
519
if ( FT_STREAM_SEEK( root_dir_offset + dir_entry3.offset ) ||
520
FT_STREAM_READ_FIELDS( winpe_rsrc_data_entry_fields,
524
FT_TRACE2(( "found font #%lu, offset %04lx, "
525
"size %04lx, cp %lu\n",
527
pe32_section.pointer_to_raw_data +
528
data_entry.offset_to_data -
529
pe32_section.virtual_address,
530
data_entry.size, data_entry.code_page ));
532
if ( face_index == face->root.num_faces )
534
if ( FT_NEW( face->font ) )
537
face->font->offset = pe32_section.pointer_to_raw_data +
538
data_entry.offset_to_data -
539
pe32_section.virtual_address;
540
face->font->fnt_size = data_entry.size;
542
error = fnt_font_load( face->font, stream );
545
FT_TRACE2(( "font #%lu load error %d\n",
546
dir_entry2.name, error ));
550
FT_TRACE2(( "font #%lu successfully loaded\n",
554
face->root.num_faces++;
561
if ( !face->root.num_faces )
563
FT_TRACE2(( "this file doesn't contain any RT_FONT resources\n" ));
564
error = FNT_Err_Invalid_File_Format;
568
if ( face_index >= face->root.num_faces )
570
error = FNT_Err_Invalid_Argument;
577
fnt_font_done( face );
584
typedef struct FNT_CMapRec_
590
} FNT_CMapRec, *FNT_CMap;
594
fnt_cmap_init( FNT_CMap cmap )
596
FNT_Face face = (FNT_Face)FT_CMAP_FACE( cmap );
597
FNT_Font font = face->font;
600
cmap->first = (FT_UInt32) font->header.first_char;
601
cmap->count = (FT_UInt32)( font->header.last_char - cmap->first + 1 );
608
fnt_cmap_char_index( FNT_CMap cmap,
609
FT_UInt32 char_code )
614
char_code -= cmap->first;
615
if ( char_code < cmap->count )
616
/* we artificially increase the glyph index; */
617
/* FNT_Load_Glyph reverts to the right one */
618
gindex = (FT_UInt)( char_code + 1 );
624
fnt_cmap_char_next( FNT_CMap cmap,
625
FT_UInt32 *pchar_code )
628
FT_UInt32 result = 0;
629
FT_UInt32 char_code = *pchar_code + 1;
632
if ( char_code <= cmap->first )
634
result = cmap->first;
639
char_code -= cmap->first;
640
if ( char_code < cmap->count )
642
result = cmap->first + char_code;
643
gindex = (FT_UInt)( char_code + 1 );
647
*pchar_code = result;
652
static const FT_CMap_ClassRec fnt_cmap_class_rec =
654
sizeof ( FNT_CMapRec ),
656
(FT_CMap_InitFunc) fnt_cmap_init,
657
(FT_CMap_DoneFunc) NULL,
658
(FT_CMap_CharIndexFunc)fnt_cmap_char_index,
659
(FT_CMap_CharNextFunc) fnt_cmap_char_next,
661
NULL, NULL, NULL, NULL, NULL
664
static FT_CMap_Class const fnt_cmap_class = &fnt_cmap_class_rec;
668
FNT_Face_Done( FNT_Face face )
676
memory = FT_FACE_MEMORY( face );
678
fnt_font_done( face );
680
FT_FREE( face->root.available_sizes );
681
face->root.num_fixed_sizes = 0;
686
FNT_Face_Init( FT_Stream stream,
690
FT_Parameter* params )
693
FT_Memory memory = FT_FACE_MEMORY( face );
695
FT_UNUSED( num_params );
699
/* try to load font from a DLL */
700
error = fnt_face_get_dll_font( face, face_index );
701
if ( !error && face_index < 0 )
704
if ( error == FNT_Err_Unknown_File_Format )
706
/* this didn't work; try to load a single FNT font */
709
if ( FT_NEW( face->font ) )
712
face->root.num_faces = 1;
716
font->fnt_size = stream->size;
718
error = fnt_font_load( font, stream );
722
if ( face_index > 0 )
723
error = FNT_Err_Invalid_Argument;
724
else if ( face_index < 0 )
732
/* we now need to fill the root FT_Face fields */
733
/* with relevant information */
735
FT_Face root = FT_FACE( face );
736
FNT_Font font = face->font;
737
FT_PtrDist family_size;
740
root->face_index = face_index;
742
root->face_flags = FT_FACE_FLAG_FIXED_SIZES |
743
FT_FACE_FLAG_HORIZONTAL;
745
if ( font->header.avg_width == font->header.max_width )
746
root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
748
if ( font->header.italic )
749
root->style_flags |= FT_STYLE_FLAG_ITALIC;
751
if ( font->header.weight >= 800 )
752
root->style_flags |= FT_STYLE_FLAG_BOLD;
754
/* set up the `fixed_sizes' array */
755
if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
758
root->num_fixed_sizes = 1;
761
FT_Bitmap_Size* bsize = root->available_sizes;
762
FT_UShort x_res, y_res;
765
bsize->width = font->header.avg_width;
766
bsize->height = (FT_Short)(
767
font->header.pixel_height + font->header.external_leading );
768
bsize->size = font->header.nominal_point_size << 6;
770
x_res = font->header.horizontal_resolution;
774
y_res = font->header.vertical_resolution;
778
bsize->y_ppem = FT_MulDiv( bsize->size, y_res, 72 );
779
bsize->y_ppem = FT_PIX_ROUND( bsize->y_ppem );
784
* the nominal height is larger than the bbox's height
786
* => nominal_point_size contains incorrect value;
787
* use pixel_height as the nominal height
789
if ( bsize->y_ppem > ( font->header.pixel_height << 6 ) )
791
FT_TRACE2(( "use pixel_height as the nominal height\n" ));
793
bsize->y_ppem = font->header.pixel_height << 6;
794
bsize->size = FT_MulDiv( bsize->y_ppem, 72, y_res );
797
bsize->x_ppem = FT_MulDiv( bsize->size, x_res, 72 );
798
bsize->x_ppem = FT_PIX_ROUND( bsize->x_ppem );
802
FT_CharMapRec charmap;
805
charmap.encoding = FT_ENCODING_NONE;
806
/* initial platform/encoding should indicate unset status? */
807
charmap.platform_id = TT_PLATFORM_APPLE_UNICODE;
808
charmap.encoding_id = TT_APPLE_ID_DEFAULT;
811
if ( font->header.charset == FT_WinFNT_ID_MAC )
813
charmap.encoding = FT_ENCODING_APPLE_ROMAN;
814
charmap.platform_id = TT_PLATFORM_MACINTOSH;
815
/* charmap.encoding_id = TT_MAC_ID_ROMAN; */
818
error = FT_CMap_New( fnt_cmap_class,
825
/* Select default charmap */
826
if ( root->num_charmaps )
827
root->charmap = root->charmaps[0];
830
/* setup remaining flags */
832
/* reserve one slot for the .notdef glyph at index 0 */
833
root->num_glyphs = font->header.last_char -
834
font->header.first_char + 1 + 1;
836
if ( font->header.face_name_offset >= font->header.file_size )
838
FT_TRACE2(( "invalid family name offset\n" ));
839
error = FNT_Err_Invalid_File_Format;
842
family_size = font->header.file_size - font->header.face_name_offset;
843
/* Some broken fonts don't delimit the face name with a final */
844
/* NULL byte -- the frame is erroneously one byte too small. */
845
/* We thus allocate one more byte, setting it explicitly to */
847
if ( FT_ALLOC( font->family_name, family_size + 1 ) )
850
FT_MEM_COPY( font->family_name,
851
font->fnt_frame + font->header.face_name_offset,
854
font->family_name[family_size] = '\0';
856
if ( FT_REALLOC( font->family_name,
858
ft_strlen( font->family_name ) + 1 ) )
861
root->family_name = font->family_name;
862
root->style_name = (char *)"Regular";
864
if ( root->style_flags & FT_STYLE_FLAG_BOLD )
866
if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
867
root->style_name = (char *)"Bold Italic";
869
root->style_name = (char *)"Bold";
871
else if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
872
root->style_name = (char *)"Italic";
877
FNT_Face_Done( face );
885
FNT_Size_Select( FT_Size size )
887
FNT_Face face = (FNT_Face)size->face;
888
FT_WinFNT_Header header = &face->font->header;
891
FT_Select_Metrics( size->face, 0 );
893
size->metrics.ascender = header->ascent * 64;
894
size->metrics.descender = -( header->pixel_height -
895
header->ascent ) * 64;
896
size->metrics.max_advance = header->max_width * 64;
903
FNT_Size_Request( FT_Size size,
904
FT_Size_Request req )
906
FNT_Face face = (FNT_Face)size->face;
907
FT_WinFNT_Header header = &face->font->header;
908
FT_Bitmap_Size* bsize = size->face->available_sizes;
909
FT_Error error = FNT_Err_Invalid_Pixel_Size;
913
height = FT_REQUEST_HEIGHT( req );
914
height = ( height + 32 ) >> 6;
918
case FT_SIZE_REQUEST_TYPE_NOMINAL:
919
if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) )
923
case FT_SIZE_REQUEST_TYPE_REAL_DIM:
924
if ( height == header->pixel_height )
929
error = FNT_Err_Unimplemented_Feature;
936
return FNT_Size_Select( size );
941
FNT_Load_Glyph( FT_GlyphSlot slot,
944
FT_Int32 load_flags )
946
FNT_Face face = (FNT_Face)FT_SIZE_FACE( size );
948
FT_Error error = FNT_Err_Ok;
951
FT_Bitmap* bitmap = &slot->bitmap;
955
FT_UNUSED( load_flags );
960
error = FNT_Err_Invalid_Argument;
967
glyph_index >= (FT_UInt)( FT_FACE( face )->num_glyphs ) )
969
error = FNT_Err_Invalid_Argument;
973
if ( glyph_index > 0 )
974
glyph_index--; /* revert to real index */
976
glyph_index = font->header.default_char; /* the .notdef glyph */
978
new_format = FT_BOOL( font->header.version == 0x300 );
979
len = new_format ? 6 : 4;
981
/* jump to glyph entry */
982
p = font->fnt_frame + ( new_format ? 148 : 118 ) + len * glyph_index;
984
bitmap->width = FT_NEXT_SHORT_LE( p );
987
offset = FT_NEXT_ULONG_LE( p );
989
offset = FT_NEXT_USHORT_LE( p );
991
if ( offset >= font->header.file_size )
993
FT_TRACE2(( "invalid FNT offset\n" ));
994
error = FNT_Err_Invalid_File_Format;
998
/* jump to glyph data */
999
p = font->fnt_frame + /* font->header.bits_offset */ + offset;
1001
/* allocate and build bitmap */
1003
FT_Memory memory = FT_FACE_MEMORY( slot->face );
1004
FT_Int pitch = ( bitmap->width + 7 ) >> 3;
1009
bitmap->pitch = pitch;
1010
bitmap->rows = font->header.pixel_height;
1011
bitmap->pixel_mode = FT_PIXEL_MODE_MONO;
1013
if ( offset + pitch * bitmap->rows >= font->header.file_size )
1015
FT_TRACE2(( "invalid bitmap width\n" ));
1016
error = FNT_Err_Invalid_File_Format;
1020
/* note: since glyphs are stored in columns and not in rows we */
1021
/* can't use ft_glyphslot_set_bitmap */
1022
if ( FT_ALLOC_MULT( bitmap->buffer, pitch, bitmap->rows ) )
1025
column = (FT_Byte*)bitmap->buffer;
1027
for ( ; pitch > 0; pitch--, column++ )
1029
FT_Byte* limit = p + bitmap->rows;
1032
for ( write = column; p < limit; p++, write += bitmap->pitch )
1037
slot->internal->flags = FT_GLYPH_OWN_BITMAP;
1038
slot->bitmap_left = 0;
1039
slot->bitmap_top = font->header.ascent;
1040
slot->format = FT_GLYPH_FORMAT_BITMAP;
1042
/* now set up metrics */
1043
slot->metrics.width = bitmap->width << 6;
1044
slot->metrics.height = bitmap->rows << 6;
1045
slot->metrics.horiAdvance = bitmap->width << 6;
1046
slot->metrics.horiBearingX = 0;
1047
slot->metrics.horiBearingY = slot->bitmap_top << 6;
1049
ft_synthesize_vertical_metrics( &slot->metrics,
1050
bitmap->rows << 6 );
1058
winfnt_get_header( FT_Face face,
1059
FT_WinFNT_HeaderRec *aheader )
1061
FNT_Font font = ((FNT_Face)face)->font;
1064
*aheader = font->header;
1070
static const FT_Service_WinFntRec winfnt_service_rec =
1080
static const FT_ServiceDescRec winfnt_services[] =
1082
{ FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_WINFNT },
1083
{ FT_SERVICE_ID_WINFNT, &winfnt_service_rec },
1088
static FT_Module_Interface
1089
winfnt_get_service( FT_Driver driver,
1090
const FT_String* service_id )
1092
FT_UNUSED( driver );
1094
return ft_service_list_lookup( winfnt_services, service_id );
1100
FT_CALLBACK_TABLE_DEF
1101
const FT_Driver_ClassRec winfnt_driver_class =
1104
FT_MODULE_FONT_DRIVER |
1105
FT_MODULE_DRIVER_NO_OUTLINES,
1106
sizeof ( FT_DriverRec ),
1114
(FT_Module_Constructor)0,
1115
(FT_Module_Destructor) 0,
1116
(FT_Module_Requester) winfnt_get_service
1119
sizeof( FNT_FaceRec ),
1120
sizeof( FT_SizeRec ),
1121
sizeof( FT_GlyphSlotRec ),
1123
(FT_Face_InitFunc) FNT_Face_Init,
1124
(FT_Face_DoneFunc) FNT_Face_Done,
1125
(FT_Size_InitFunc) 0,
1126
(FT_Size_DoneFunc) 0,
1127
(FT_Slot_InitFunc) 0,
1128
(FT_Slot_DoneFunc) 0,
1130
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
1131
ft_stub_set_char_sizes,
1132
ft_stub_set_pixel_sizes,
1134
(FT_Slot_LoadFunc) FNT_Load_Glyph,
1136
(FT_Face_GetKerningFunc) 0,
1137
(FT_Face_AttachFunc) 0,
1138
(FT_Face_GetAdvancesFunc) 0,
1140
(FT_Size_RequestFunc) FNT_Size_Request,
1141
(FT_Size_SelectFunc) FNT_Size_Select