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clarify the gui
[open-ps2-loader.git] / thirdparty / freetype-2.3.12 / src / winfonts / winfnt.c
blob6b3a4e17f20f1c54c9b4a7e771e954bea5495d3d
1 /***************************************************************************/
2 /* */
3 /* winfnt.c */
4 /* */
5 /* FreeType font driver for Windows FNT/FON files */
6 /* */
7 /* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009 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 */
11 /* */
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. */
17 /* */
18 /***************************************************************************/
19
20
21 #include <ft2build.h>
22 #include FT_WINFONTS_H
23 #include FT_INTERNAL_DEBUG_H
24 #include FT_INTERNAL_STREAM_H
25 #include FT_INTERNAL_OBJECTS_H
26
27 #include "winfnt.h"
28 #include "fnterrs.h"
29 #include FT_SERVICE_WINFNT_H
30 #include FT_SERVICE_XFREE86_NAME_H
31
32 /*************************************************************************/
33 /* */
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. */
37 /* */
38 #undef FT_COMPONENT
39 #define FT_COMPONENT trace_winfnt
40
41
42 static const FT_Frame_Field winmz_header_fields[] =
43 {
44 #undef FT_STRUCTURE
45 #define FT_STRUCTURE WinMZ_HeaderRec
46
47 FT_FRAME_START( 64 ),
48 FT_FRAME_USHORT_LE ( magic ),
49 FT_FRAME_SKIP_BYTES( 29 * 2 ),
50 FT_FRAME_ULONG_LE ( lfanew ),
51 FT_FRAME_END
52 };
53
54 static const FT_Frame_Field winne_header_fields[] =
55 {
56 #undef FT_STRUCTURE
57 #define FT_STRUCTURE WinNE_HeaderRec
58
59 FT_FRAME_START( 40 ),
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 ),
64 FT_FRAME_END
65 };
66
67 static const FT_Frame_Field winpe32_header_fields[] =
68 {
69 #undef FT_STRUCTURE
70 #define FT_STRUCTURE WinPE32_HeaderRec
71
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 ),
84 FT_FRAME_END
85 };
86
87 static const FT_Frame_Field winpe32_section_fields[] =
88 {
89 #undef FT_STRUCTURE
90 #define FT_STRUCTURE WinPE32_SectionRec
91
92 FT_FRAME_START( 40 ),
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 ),
99 FT_FRAME_END
100 };
101
102 static const FT_Frame_Field winpe_rsrc_dir_fields[] =
103 {
104 #undef FT_STRUCTURE
105 #define FT_STRUCTURE WinPE_RsrcDirRec
106
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 ),
114 FT_FRAME_END
115 };
116
117 static const FT_Frame_Field winpe_rsrc_dir_entry_fields[] =
118 {
119 #undef FT_STRUCTURE
120 #define FT_STRUCTURE WinPE_RsrcDirEntryRec
121
122 FT_FRAME_START( 8 ),
123 FT_FRAME_ULONG_LE( name ),
124 FT_FRAME_ULONG_LE( offset ),
125 FT_FRAME_END
126 };
127
128 static const FT_Frame_Field winpe_rsrc_data_entry_fields[] =
129 {
130 #undef FT_STRUCTURE
131 #define FT_STRUCTURE WinPE_RsrcDataEntryRec
132
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 ),
138 FT_FRAME_END
139 };
140
141 static const FT_Frame_Field winfnt_header_fields[] =
142 {
143 #undef FT_STRUCTURE
144 #define FT_STRUCTURE FT_WinFNT_HeaderRec
145
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 ),
183 FT_FRAME_END
184 };
185
186
187 static void
188 fnt_font_done( FNT_Face face )
189 {
190 FT_Memory memory = FT_FACE( face )->memory;
191 FT_Stream stream = FT_FACE( face )->stream;
192 FNT_Font font = face->font;
193
194
195 if ( !font )
196 return;
197
198 if ( font->fnt_frame )
199 FT_FRAME_RELEASE( font->fnt_frame );
200 FT_FREE( font->family_name );
201
202 FT_FREE( font );
203 face->font = 0;
204 }
205
206
207 static FT_Error
208 fnt_font_load( FNT_Font font,
209 FT_Stream stream )
210 {
211 FT_Error error;
212 FT_WinFNT_Header header = &font->header;
213 FT_Bool new_format;
214 FT_UInt size;
215
216
217 /* first of all, read the FNT header */
218 if ( FT_STREAM_SEEK( font->offset ) ||
219 FT_STREAM_READ_FIELDS( winfnt_header_fields, header ) )
220 goto Exit;
221
222 /* check header */
223 if ( header->version != 0x200 &&
224 header->version != 0x300 )
225 {
226 FT_TRACE2(( "[not a valid FNT file]\n" ));
227 error = FNT_Err_Unknown_File_Format;
228 goto Exit;
229 }
230
231 new_format = FT_BOOL( font->header.version == 0x300 );
232 size = new_format ? 148 : 118;
233
234 if ( header->file_size < size )
235 {
236 FT_TRACE2(( "[not a valid FNT file]\n" ));
237 error = FNT_Err_Unknown_File_Format;
238 goto Exit;
239 }
240
241 /* Version 2 doesn't have these fields */
242 if ( header->version == 0x200 )
243 {
244 header->flags = 0;
245 header->A_space = 0;
246 header->B_space = 0;
247 header->C_space = 0;
248
249 header->color_table_offset = 0;
250 }
251
252 if ( header->file_type & 1 )
253 {
254 FT_TRACE2(( "[can't handle vector FNT fonts]\n" ));
255 error = FNT_Err_Unknown_File_Format;
256 goto Exit;
257 }
258
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 ) )
262 goto Exit;
263
264 Exit:
265 return error;
266 }
267
268
269 static FT_Error
270 fnt_face_get_dll_font( FNT_Face face,
271 FT_Int face_index )
272 {
273 FT_Error error;
274 FT_Stream stream = FT_FACE( face )->stream;
275 FT_Memory memory = FT_FACE( face )->memory;
276 WinMZ_HeaderRec mz_header;
277
278
279 face->font = 0;
280
281 /* does it begin with an MZ header? */
282 if ( FT_STREAM_SEEK( 0 ) ||
283 FT_STREAM_READ_FIELDS( winmz_header_fields, &mz_header ) )
284 goto Exit;
285
286 error = FNT_Err_Unknown_File_Format;
287 if ( mz_header.magic == WINFNT_MZ_MAGIC )
288 {
289 /* yes, now look for an NE header in the file */
290 WinNE_HeaderRec ne_header;
291
292
293 FT_TRACE2(( "MZ signature found\n" ));
294
295 if ( FT_STREAM_SEEK( mz_header.lfanew ) ||
296 FT_STREAM_READ_FIELDS( winne_header_fields, &ne_header ) )
297 goto Exit;
298
299 error = FNT_Err_Unknown_File_Format;
300 if ( ne_header.magic == WINFNT_NE_MAGIC )
301 {
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;
308
309
310 FT_TRACE2(( "NE signature found\n" ));
311
312 if ( FT_STREAM_SEEK( res_offset ) ||
313 FT_FRAME_ENTER( ne_header.rname_tab_offset -
314 ne_header.resource_tab_offset ) )
315 goto Exit;
316
317 size_shift = FT_GET_USHORT_LE();
318
319 for (;;)
320 {
321 FT_UShort type_id, count;
322
323
324 type_id = FT_GET_USHORT_LE();
325 if ( !type_id )
326 break;
327
328 count = FT_GET_USHORT_LE();
329
330 if ( type_id == 0x8008U )
331 {
332 font_count = count;
333 font_offset = (FT_ULong)( FT_STREAM_POS() + 4 +
334 ( stream->cursor - stream->limit ) );
335 break;
336 }
337
338 stream->cursor += 4 + count * 12;
339 }
340
341 FT_FRAME_EXIT();
342
343 if ( !font_count || !font_offset )
344 {
345 FT_TRACE2(( "this file doesn't contain any FNT resources\n" ));
346 error = FNT_Err_Invalid_File_Format;
347 goto Exit;
348 }
349
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 )
353 {
354 FT_TRACE2(( "invalid number of faces\n" ));
355 error = FNT_Err_Invalid_File_Format;
356 goto Exit;
357 }
358
359 face->root.num_faces = font_count;
360
361 if ( face_index >= font_count )
362 {
363 error = FNT_Err_Invalid_Argument;
364 goto Exit;
365 }
366 else if ( face_index < 0 )
367 goto Exit;
368
369 if ( FT_NEW( face->font ) )
370 goto Exit;
371
372 if ( FT_STREAM_SEEK( font_offset + face_index * 12 ) ||
373 FT_FRAME_ENTER( 12 ) )
374 goto Fail;
375
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;
378
379 stream->cursor += 8;
380
381 FT_FRAME_EXIT();
382
383 error = fnt_font_load( face->font, stream );
384 }
385 else if ( ne_header.magic == WINFNT_PE_MAGIC )
386 {
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;
392
393 FT_Long root_dir_offset, name_dir_offset, lang_dir_offset;
394 FT_UShort i, j, k;
395
396
397 FT_TRACE2(( "PE signature found\n" ));
398
399 if ( FT_STREAM_SEEK( mz_header.lfanew ) ||
400 FT_STREAM_READ_FIELDS( winpe32_header_fields, &pe32_header ) )
401 goto Exit;
402
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, "
406 "rsrc_size %04lx\n",
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 ));
412
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 )
417 {
418 FT_TRACE2(( "this file has an invalid PE header\n" ));
419 error = FNT_Err_Invalid_File_Format;
420 goto Exit;
421 }
422
423 face->root.num_faces = 0;
424
425 for ( i = 0; i < pe32_header.number_of_sections; i++ )
426 {
427 if ( FT_STREAM_READ_FIELDS( winpe32_section_fields,
428 &pe32_section ) )
429 goto Exit;
430
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 ));
435
436 if ( pe32_header.rsrc_virtual_address ==
437 pe32_section.virtual_address )
438 goto Found_rsrc_section;
439 }
440
441 FT_TRACE2(( "this file doesn't contain any resources\n" ));
442 error = FNT_Err_Invalid_File_Format;
443 goto Exit;
444
445 Found_rsrc_section:
446 FT_TRACE2(( "found resources section %.8s\n", pe32_section.name ));
447
448 if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data ) ||
449 FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &root_dir ) )
450 goto Exit;
451
452 root_dir_offset = pe32_section.pointer_to_raw_data;
453
454 for ( i = 0; i < root_dir.number_of_named_entries +
455 root_dir.number_of_id_entries; i++ )
456 {
457 if ( FT_STREAM_SEEK( root_dir_offset + 16 + i * 8 ) ||
458 FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
459 &dir_entry1 ) )
460 goto Exit;
461
462 if ( !(dir_entry1.offset & 0x80000000UL ) /* DataIsDirectory */ )
463 {
464 error = FNT_Err_Invalid_File_Format;
465 goto Exit;
466 }
467
468 dir_entry1.offset &= ~0x80000000UL;
469
470 name_dir_offset = pe32_section.pointer_to_raw_data +
471 dir_entry1.offset;
472
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 ) )
476 goto Exit;
477
478 for ( j = 0; j < name_dir.number_of_named_entries +
479 name_dir.number_of_id_entries; j++ )
480 {
481 if ( FT_STREAM_SEEK( name_dir_offset + 16 + j * 8 ) ||
482 FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
483 &dir_entry2 ) )
484 goto Exit;
485
486 if ( !(dir_entry2.offset & 0x80000000UL ) /* DataIsDirectory */ )
487 {
488 error = FNT_Err_Invalid_File_Format;
489 goto Exit;
490 }
491
492 dir_entry2.offset &= ~0x80000000UL;
493
494 lang_dir_offset = pe32_section.pointer_to_raw_data +
495 dir_entry2.offset;
496
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 ) )
500 goto Exit;
501
502 for ( k = 0; k < lang_dir.number_of_named_entries +
503 lang_dir.number_of_id_entries; k++ )
504 {
505 if ( FT_STREAM_SEEK( lang_dir_offset + 16 + k * 8 ) ||
506 FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
507 &dir_entry3 ) )
508 goto Exit;
509
510 if ( dir_entry2.offset & 0x80000000UL /* DataIsDirectory */ )
511 {
512 error = FNT_Err_Invalid_File_Format;
513 goto Exit;
514 }
515
516 if ( dir_entry1.name == 8 /* RT_FONT */ )
517 {
518 if ( FT_STREAM_SEEK( root_dir_offset + dir_entry3.offset ) ||
519 FT_STREAM_READ_FIELDS( winpe_rsrc_data_entry_fields,
520 &data_entry ) )
521 goto Exit;
522
523 FT_TRACE2(( "found font #%lu, offset %04lx, "
524 "size %04lx, cp %lu\n",
525 dir_entry2.name,
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 ));
530
531 if ( face_index == face->root.num_faces )
532 {
533 if ( FT_NEW( face->font ) )
534 goto Exit;
535
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;
540
541 error = fnt_font_load( face->font, stream );
542 if ( error )
543 {
544 FT_TRACE2(( "font #%lu load error %d\n",
545 dir_entry2.name, error ));
546 goto Fail;
547 }
548 else
549 FT_TRACE2(( "font #%lu successfully loaded\n",
550 dir_entry2.name ));
551 }
552
553 face->root.num_faces++;
554 }
555 }
556 }
557 }
558 }
559
560 if ( !face->root.num_faces )
561 {
562 FT_TRACE2(( "this file doesn't contain any RT_FONT resources\n" ));
563 error = FNT_Err_Invalid_File_Format;
564 goto Exit;
565 }
566
567 if ( face_index >= face->root.num_faces )
568 {
569 error = FNT_Err_Invalid_Argument;
570 goto Exit;
571 }
572 }
573
574 Fail:
575 if ( error )
576 fnt_font_done( face );
577
578 Exit:
579 return error;
580 }
581
582
583 typedef struct FNT_CMapRec_
584 {
585 FT_CMapRec cmap;
586 FT_UInt32 first;
587 FT_UInt32 count;
588
589 } FNT_CMapRec, *FNT_CMap;
590
591
592 static FT_Error
593 fnt_cmap_init( FNT_CMap cmap )
594 {
595 FNT_Face face = (FNT_Face)FT_CMAP_FACE( cmap );
596 FNT_Font font = face->font;
597
598
599 cmap->first = (FT_UInt32) font->header.first_char;
600 cmap->count = (FT_UInt32)( font->header.last_char - cmap->first + 1 );
601
602 return 0;
603 }
604
605
606 static FT_UInt
607 fnt_cmap_char_index( FNT_CMap cmap,
608 FT_UInt32 char_code )
609 {
610 FT_UInt gindex = 0;
611
612
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 );
618 return gindex;
619 }
620
621
622 static FT_UInt32
623 fnt_cmap_char_next( FNT_CMap cmap,
624 FT_UInt32 *pchar_code )
625 {
626 FT_UInt gindex = 0;
627 FT_UInt32 result = 0;
628 FT_UInt32 char_code = *pchar_code + 1;
629
630
631 if ( char_code <= cmap->first )
632 {
633 result = cmap->first;
634 gindex = 1;
635 }
636 else
637 {
638 char_code -= cmap->first;
639 if ( char_code < cmap->count )
640 {
641 result = cmap->first + char_code;
642 gindex = (FT_UInt)( char_code + 1 );
643 }
644 }
645
646 *pchar_code = result;
647 return gindex;
648 }
649
650
651 static const FT_CMap_ClassRec fnt_cmap_class_rec =
652 {
653 sizeof ( FNT_CMapRec ),
654
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,
659
660 NULL, NULL, NULL, NULL, NULL
661 };
662
663 static FT_CMap_Class const fnt_cmap_class = &fnt_cmap_class_rec;
664
665
666 static void
667 FNT_Face_Done( FNT_Face face )
668 {
669 FT_Memory memory;
670
671
672 if ( !face )
673 return;
674
675 memory = FT_FACE_MEMORY( face );
676
677 fnt_font_done( face );
678
679 FT_FREE( face->root.available_sizes );
680 face->root.num_fixed_sizes = 0;
681 }
682
683
684 static FT_Error
685 FNT_Face_Init( FT_Stream stream,
686 FNT_Face face,
687 FT_Int face_index,
688 FT_Int num_params,
689 FT_Parameter* params )
690 {
691 FT_Error error;
692 FT_Memory memory = FT_FACE_MEMORY( face );
693
694 FT_UNUSED( num_params );
695 FT_UNUSED( params );
696
697
698 /* try to load font from a DLL */
699 error = fnt_face_get_dll_font( face, face_index );
700 if ( !error && face_index < 0 )
701 goto Exit;
702
703 if ( error == FNT_Err_Unknown_File_Format )
704 {
705 /* this didn't work; try to load a single FNT font */
706 FNT_Font font;
707
708 if ( FT_NEW( face->font ) )
709 goto Exit;
710
711 face->root.num_faces = 1;
712
713 font = face->font;
714 font->offset = 0;
715 font->fnt_size = stream->size;
716
717 error = fnt_font_load( font, stream );
718
719 if ( !error )
720 {
721 if ( face_index > 0 )
722 error = FNT_Err_Invalid_Argument;
723 else if ( face_index < 0 )
724 goto Exit;
725 }
726 }
727
728 if ( error )
729 goto Fail;
730
731 /* we now need to fill the root FT_Face fields */
732 /* with relevant information */
733 {
734 FT_Face root = FT_FACE( face );
735 FNT_Font font = face->font;
736 FT_PtrDist family_size;
737
738
739 root->face_index = face_index;
740
741 root->face_flags = FT_FACE_FLAG_FIXED_SIZES |
742 FT_FACE_FLAG_HORIZONTAL;
743
744 if ( font->header.avg_width == font->header.max_width )
745 root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
746
747 if ( font->header.italic )
748 root->style_flags |= FT_STYLE_FLAG_ITALIC;
749
750 if ( font->header.weight >= 800 )
751 root->style_flags |= FT_STYLE_FLAG_BOLD;
752
753 /* set up the `fixed_sizes' array */
754 if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
755 goto Fail;
756
757 root->num_fixed_sizes = 1;
758
759 {
760 FT_Bitmap_Size* bsize = root->available_sizes;
761 FT_UShort x_res, y_res;
762
763
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;
768
769 x_res = font->header.horizontal_resolution;
770 if ( !x_res )
771 x_res = 72;
772
773 y_res = font->header.vertical_resolution;
774 if ( !y_res )
775 y_res = 72;
776
777 bsize->y_ppem = FT_MulDiv( bsize->size, y_res, 72 );
778 bsize->y_ppem = FT_PIX_ROUND( bsize->y_ppem );
779
780 /*
781 * this reads:
782 *
783 * the nominal height is larger than the bbox's height
784 *
785 * => nominal_point_size contains incorrect value;
786 * use pixel_height as the nominal height
787 */
788 if ( bsize->y_ppem > ( font->header.pixel_height << 6 ) )
789 {
790 FT_TRACE2(( "use pixel_height as the nominal height\n" ));
791
792 bsize->y_ppem = font->header.pixel_height << 6;
793 bsize->size = FT_MulDiv( bsize->y_ppem, 72, y_res );
794 }
795
796 bsize->x_ppem = FT_MulDiv( bsize->size, x_res, 72 );
797 bsize->x_ppem = FT_PIX_ROUND( bsize->x_ppem );
798 }
799
800 {
801 FT_CharMapRec charmap;
802
803
804 charmap.encoding = FT_ENCODING_NONE;
805 charmap.platform_id = 0;
806 charmap.encoding_id = 0;
807 charmap.face = root;
808
809 if ( font->header.charset == FT_WinFNT_ID_MAC )
810 {
811 charmap.encoding = FT_ENCODING_APPLE_ROMAN;
812 charmap.platform_id = 1;
813 /* charmap.encoding_id = 0; */
814 }
815
816 error = FT_CMap_New( fnt_cmap_class,
817 NULL,
818 &charmap,
819 NULL );
820 if ( error )
821 goto Fail;
822
823 /* Select default charmap */
824 if ( root->num_charmaps )
825 root->charmap = root->charmaps[0];
826 }
827
828 /* setup remaining flags */
829
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;
833
834 if ( font->header.face_name_offset >= font->header.file_size )
835 {
836 FT_TRACE2(( "invalid family name offset\n" ));
837 error = FNT_Err_Invalid_File_Format;
838 goto Fail;
839 }
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 */
844 /* zero. */
845 if ( FT_ALLOC( font->family_name, family_size + 1 ) )
846 goto Fail;
847
848 FT_MEM_COPY( font->family_name,
849 font->fnt_frame + font->header.face_name_offset,
850 family_size );
851
852 font->family_name[family_size] = '\0';
853
854 if ( FT_REALLOC( font->family_name,
855 family_size,
856 ft_strlen( font->family_name ) + 1 ) )
857 goto Fail;
858
859 root->family_name = font->family_name;
860 root->style_name = (char *)"Regular";
861
862 if ( root->style_flags & FT_STYLE_FLAG_BOLD )
863 {
864 if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
865 root->style_name = (char *)"Bold Italic";
866 else
867 root->style_name = (char *)"Bold";
868 }
869 else if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
870 root->style_name = (char *)"Italic";
871 }
872 goto Exit;
873
874 Fail:
875 FNT_Face_Done( face );
876
877 Exit:
878 return error;
879 }
880
881
882 static FT_Error
883 FNT_Size_Select( FT_Size size )
884 {
885 FNT_Face face = (FNT_Face)size->face;
886 FT_WinFNT_Header header = &face->font->header;
887
888
889 FT_Select_Metrics( size->face, 0 );
890
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;
895
896 return FNT_Err_Ok;
897 }
898
899
900 static FT_Error
901 FNT_Size_Request( FT_Size size,
902 FT_Size_Request req )
903 {
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;
908 FT_Long height;
909
910
911 height = FT_REQUEST_HEIGHT( req );
912 height = ( height + 32 ) >> 6;
913
914 switch ( req->type )
915 {
916 case FT_SIZE_REQUEST_TYPE_NOMINAL:
917 if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) )
918 error = FNT_Err_Ok;
919 break;
920
921 case FT_SIZE_REQUEST_TYPE_REAL_DIM:
922 if ( height == header->pixel_height )
923 error = FNT_Err_Ok;
924 break;
925
926 default:
927 error = FNT_Err_Unimplemented_Feature;
928 break;
929 }
930
931 if ( error )
932 return error;
933 else
934 return FNT_Size_Select( size );
935 }
936
937
938 static FT_Error
939 FNT_Load_Glyph( FT_GlyphSlot slot,
940 FT_Size size,
941 FT_UInt glyph_index,
942 FT_Int32 load_flags )
943 {
944 FNT_Face face = (FNT_Face)FT_SIZE_FACE( size );
945 FNT_Font font = face->font;
946 FT_Error error = FNT_Err_Ok;
947 FT_Byte* p;
948 FT_Int len;
949 FT_Bitmap* bitmap = &slot->bitmap;
950 FT_ULong offset;
951 FT_Bool new_format;
952
953 FT_UNUSED( load_flags );
954
955
956 if ( !face || !font ||
957 glyph_index >= (FT_UInt)( FT_FACE( face )->num_glyphs ) )
958 {
959 error = FNT_Err_Invalid_Argument;
960 goto Exit;
961 }
962
963 if ( glyph_index > 0 )
964 glyph_index--; /* revert to real index */
965 else
966 glyph_index = font->header.default_char; /* the .notdef glyph */
967
968 new_format = FT_BOOL( font->header.version == 0x300 );
969 len = new_format ? 6 : 4;
970
971 /* jump to glyph entry */
972 p = font->fnt_frame + ( new_format ? 148 : 118 ) + len * glyph_index;
973
974 bitmap->width = FT_NEXT_SHORT_LE( p );
975
976 if ( new_format )
977 offset = FT_NEXT_ULONG_LE( p );
978 else
979 offset = FT_NEXT_USHORT_LE( p );
980
981 if ( offset >= font->header.file_size )
982 {
983 FT_TRACE2(( "invalid FNT offset\n" ));
984 error = FNT_Err_Invalid_File_Format;
985 goto Exit;
986 }
987
988 /* jump to glyph data */
989 p = font->fnt_frame + /* font->header.bits_offset */ + offset;
990
991 /* allocate and build bitmap */
992 {
993 FT_Memory memory = FT_FACE_MEMORY( slot->face );
994 FT_Int pitch = ( bitmap->width + 7 ) >> 3;
995 FT_Byte* column;
996 FT_Byte* write;
997
998
999 bitmap->pitch = pitch;
1000 bitmap->rows = font->header.pixel_height;
1001 bitmap->pixel_mode = FT_PIXEL_MODE_MONO;
1002
1003 if ( offset + pitch * bitmap->rows >= font->header.file_size )
1004 {
1005 FT_TRACE2(( "invalid bitmap width\n" ));
1006 error = FNT_Err_Invalid_File_Format;
1007 goto Exit;
1008 }
1009
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 ) )
1013 goto Exit;
1014
1015 column = (FT_Byte*)bitmap->buffer;
1016
1017 for ( ; pitch > 0; pitch--, column++ )
1018 {
1019 FT_Byte* limit = p + bitmap->rows;
1020
1021
1022 for ( write = column; p < limit; p++, write += bitmap->pitch )
1023 *write = *p;
1024 }
1025 }
1026
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;
1031
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;
1038
1039 ft_synthesize_vertical_metrics( &slot->metrics,
1040 bitmap->rows << 6 );
1041
1042 Exit:
1043 return error;
1044 }
1045
1046
1047 static FT_Error
1048 winfnt_get_header( FT_Face face,
1049 FT_WinFNT_HeaderRec *aheader )
1050 {
1051 FNT_Font font = ((FNT_Face)face)->font;
1052
1053
1054 *aheader = font->header;
1055
1056 return 0;
1057 }
1058
1059
1060 static const FT_Service_WinFntRec winfnt_service_rec =
1061 {
1062 winfnt_get_header
1063 };
1064
1065 /*
1066 * SERVICE LIST
1067 *
1068 */
1069
1070 static const FT_ServiceDescRec winfnt_services[] =
1071 {
1072 { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_WINFNT },
1073 { FT_SERVICE_ID_WINFNT, &winfnt_service_rec },
1074 { NULL, NULL }
1075 };
1076
1077
1078 static FT_Module_Interface
1079 winfnt_get_service( FT_Driver driver,
1080 const FT_String* service_id )
1081 {
1082 FT_UNUSED( driver );
1083
1084 return ft_service_list_lookup( winfnt_services, service_id );
1085 }
1086
1087
1088
1089
1090 FT_CALLBACK_TABLE_DEF
1091 const FT_Driver_ClassRec winfnt_driver_class =
1092 {
1093 {
1094 FT_MODULE_FONT_DRIVER |
1095 FT_MODULE_DRIVER_NO_OUTLINES,
1096 sizeof ( FT_DriverRec ),
1097
1098 "winfonts",
1099 0x10000L,
1100 0x20000L,
1101
1102 0,
1103
1104 (FT_Module_Constructor)0,
1105 (FT_Module_Destructor) 0,
1106 (FT_Module_Requester) winfnt_get_service
1107 },
1108
1109 sizeof( FNT_FaceRec ),
1110 sizeof( FT_SizeRec ),
1111 sizeof( FT_GlyphSlotRec ),
1112
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,
1119
1120 #ifdef FT_CONFIG_OPTION_OLD_INTERNALS
1121 ft_stub_set_char_sizes,
1122 ft_stub_set_pixel_sizes,
1123 #endif
1124 (FT_Slot_LoadFunc) FNT_Load_Glyph,
1125
1126 (FT_Face_GetKerningFunc) 0,
1127 (FT_Face_AttachFunc) 0,
1128 (FT_Face_GetAdvancesFunc) 0,
1129
1130 (FT_Size_RequestFunc) FNT_Size_Request,
1131 (FT_Size_SelectFunc) FNT_Size_Select
1132 };
1133
1134
1135 /* END */
Open USB/SMB/HDD Game Loader for PS2/PS3