0,0 → 1,1696 |
/***************************************************************************/ |
/* */ |
/* cffload.c */ |
/* */ |
/* OpenType and CFF data/program tables loader (body). */ |
/* */ |
/* Copyright 1996-2013 by */ |
/* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
/* */ |
/* 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_INTERNAL_DEBUG_H |
#include FT_INTERNAL_OBJECTS_H |
#include FT_INTERNAL_STREAM_H |
#include FT_TRUETYPE_TAGS_H |
#include FT_TYPE1_TABLES_H |
|
#include "cffload.h" |
#include "cffparse.h" |
|
#include "cfferrs.h" |
|
|
#if 1 |
|
static const FT_UShort cff_isoadobe_charset[229] = |
{ |
0, 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 |
}; |
|
static const FT_UShort cff_expert_charset[166] = |
{ |
0, 1, 229, 230, 231, 232, 233, 234, |
235, 236, 237, 238, 13, 14, 15, 99, |
239, 240, 241, 242, 243, 244, 245, 246, |
247, 248, 27, 28, 249, 250, 251, 252, |
253, 254, 255, 256, 257, 258, 259, 260, |
261, 262, 263, 264, 265, 266, 109, 110, |
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, 158, 155, 163, 319, |
320, 321, 322, 323, 324, 325, 326, 150, |
164, 169, 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 |
}; |
|
static const FT_UShort cff_expertsubset_charset[87] = |
{ |
0, 1, 231, 232, 235, 236, 237, 238, |
13, 14, 15, 99, 239, 240, 241, 242, |
243, 244, 245, 246, 247, 248, 27, 28, |
249, 250, 251, 253, 254, 255, 256, 257, |
258, 259, 260, 261, 262, 263, 264, 265, |
266, 109, 110, 267, 268, 269, 270, 272, |
300, 301, 302, 305, 314, 315, 158, 155, |
163, 320, 321, 322, 323, 324, 325, 326, |
150, 164, 169, 327, 328, 329, 330, 331, |
332, 333, 334, 335, 336, 337, 338, 339, |
340, 341, 342, 343, 344, 345, 346 |
}; |
|
static const FT_UShort cff_standard_encoding[256] = |
{ |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
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, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 96, 97, 98, 99, 100, 101, 102, |
103, 104, 105, 106, 107, 108, 109, 110, |
0, 111, 112, 113, 114, 0, 115, 116, |
117, 118, 119, 120, 121, 122, 0, 123, |
0, 124, 125, 126, 127, 128, 129, 130, |
131, 0, 132, 133, 0, 134, 135, 136, |
137, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 138, 0, 139, 0, 0, 0, 0, |
140, 141, 142, 143, 0, 0, 0, 0, |
0, 144, 0, 0, 0, 145, 0, 0, |
146, 147, 148, 149, 0, 0, 0, 0 |
}; |
|
static const FT_UShort cff_expert_encoding[256] = |
{ |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
1, 229, 230, 0, 231, 232, 233, 234, |
235, 236, 237, 238, 13, 14, 15, 99, |
239, 240, 241, 242, 243, 244, 245, 246, |
247, 248, 27, 28, 249, 250, 251, 252, |
0, 253, 254, 255, 256, 257, 0, 0, |
0, 258, 0, 0, 259, 260, 261, 262, |
0, 0, 263, 264, 265, 0, 266, 109, |
110, 267, 268, 269, 0, 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, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 0, 0, 0, 0, 0, 0, 0, |
0, 304, 305, 306, 0, 0, 307, 308, |
309, 310, 311, 0, 312, 0, 0, 312, |
0, 0, 314, 315, 0, 0, 316, 317, |
318, 0, 0, 0, 158, 155, 163, 319, |
320, 321, 322, 323, 324, 325, 0, 0, |
326, 150, 164, 169, 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 |
}; |
|
#endif /* 1 */ |
|
|
FT_LOCAL_DEF( FT_UShort ) |
cff_get_standard_encoding( FT_UInt charcode ) |
{ |
return (FT_UShort)( charcode < 256 ? cff_standard_encoding[charcode] |
: 0 ); |
} |
|
|
/*************************************************************************/ |
/* */ |
/* 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_cffload |
|
|
/* read an offset from the index's stream current position */ |
static FT_ULong |
cff_index_read_offset( CFF_Index idx, |
FT_Error *errorp ) |
{ |
FT_Error error; |
FT_Stream stream = idx->stream; |
FT_Byte tmp[4]; |
FT_ULong result = 0; |
|
|
if ( !FT_STREAM_READ( tmp, idx->off_size ) ) |
{ |
FT_Int nn; |
|
|
for ( nn = 0; nn < idx->off_size; nn++ ) |
result = ( result << 8 ) | tmp[nn]; |
} |
|
*errorp = error; |
return result; |
} |
|
|
static FT_Error |
cff_index_init( CFF_Index idx, |
FT_Stream stream, |
FT_Bool load ) |
{ |
FT_Error error; |
FT_Memory memory = stream->memory; |
FT_UShort count; |
|
|
FT_MEM_ZERO( idx, sizeof ( *idx ) ); |
|
idx->stream = stream; |
idx->start = FT_STREAM_POS(); |
if ( !FT_READ_USHORT( count ) && |
count > 0 ) |
{ |
FT_Byte offsize; |
FT_ULong size; |
|
|
/* there is at least one element; read the offset size, */ |
/* then access the offset table to compute the index's total size */ |
if ( FT_READ_BYTE( offsize ) ) |
goto Exit; |
|
if ( offsize < 1 || offsize > 4 ) |
{ |
error = FT_THROW( Invalid_Table ); |
goto Exit; |
} |
|
idx->count = count; |
idx->off_size = offsize; |
size = (FT_ULong)( count + 1 ) * offsize; |
|
idx->data_offset = idx->start + 3 + size; |
|
if ( FT_STREAM_SKIP( size - offsize ) ) |
goto Exit; |
|
size = cff_index_read_offset( idx, &error ); |
if ( error ) |
goto Exit; |
|
if ( size == 0 ) |
{ |
error = FT_THROW( Invalid_Table ); |
goto Exit; |
} |
|
idx->data_size = --size; |
|
if ( load ) |
{ |
/* load the data */ |
if ( FT_FRAME_EXTRACT( size, idx->bytes ) ) |
goto Exit; |
} |
else |
{ |
/* skip the data */ |
if ( FT_STREAM_SKIP( size ) ) |
goto Exit; |
} |
} |
|
Exit: |
if ( error ) |
FT_FREE( idx->offsets ); |
|
return error; |
} |
|
|
static void |
cff_index_done( CFF_Index idx ) |
{ |
if ( idx->stream ) |
{ |
FT_Stream stream = idx->stream; |
FT_Memory memory = stream->memory; |
|
|
if ( idx->bytes ) |
FT_FRAME_RELEASE( idx->bytes ); |
|
FT_FREE( idx->offsets ); |
FT_MEM_ZERO( idx, sizeof ( *idx ) ); |
} |
} |
|
|
static FT_Error |
cff_index_load_offsets( CFF_Index idx ) |
{ |
FT_Error error = FT_Err_Ok; |
FT_Stream stream = idx->stream; |
FT_Memory memory = stream->memory; |
|
|
if ( idx->count > 0 && idx->offsets == NULL ) |
{ |
FT_Byte offsize = idx->off_size; |
FT_ULong data_size; |
FT_Byte* p; |
FT_Byte* p_end; |
FT_ULong* poff; |
|
|
data_size = (FT_ULong)( idx->count + 1 ) * offsize; |
|
if ( FT_NEW_ARRAY( idx->offsets, idx->count + 1 ) || |
FT_STREAM_SEEK( idx->start + 3 ) || |
FT_FRAME_ENTER( data_size ) ) |
goto Exit; |
|
poff = idx->offsets; |
p = (FT_Byte*)stream->cursor; |
p_end = p + data_size; |
|
switch ( offsize ) |
{ |
case 1: |
for ( ; p < p_end; p++, poff++ ) |
poff[0] = p[0]; |
break; |
|
case 2: |
for ( ; p < p_end; p += 2, poff++ ) |
poff[0] = FT_PEEK_USHORT( p ); |
break; |
|
case 3: |
for ( ; p < p_end; p += 3, poff++ ) |
poff[0] = FT_PEEK_OFF3( p ); |
break; |
|
default: |
for ( ; p < p_end; p += 4, poff++ ) |
poff[0] = FT_PEEK_ULONG( p ); |
} |
|
FT_FRAME_EXIT(); |
} |
|
Exit: |
if ( error ) |
FT_FREE( idx->offsets ); |
|
return error; |
} |
|
|
/* Allocate a table containing pointers to an index's elements. */ |
/* The `pool' argument makes this function convert the index */ |
/* entries to C-style strings (this is, NULL-terminated). */ |
static FT_Error |
cff_index_get_pointers( CFF_Index idx, |
FT_Byte*** table, |
FT_Byte** pool ) |
{ |
FT_Error error = FT_Err_Ok; |
FT_Memory memory = idx->stream->memory; |
|
FT_Byte** t = NULL; |
FT_Byte* new_bytes = NULL; |
|
|
*table = NULL; |
|
if ( idx->offsets == NULL ) |
{ |
error = cff_index_load_offsets( idx ); |
if ( error ) |
goto Exit; |
} |
|
if ( idx->count > 0 && |
!FT_NEW_ARRAY( t, idx->count + 1 ) && |
( !pool || !FT_ALLOC( new_bytes, |
idx->data_size + idx->count ) ) ) |
{ |
FT_ULong n, cur_offset; |
FT_ULong extra = 0; |
FT_Byte* org_bytes = idx->bytes; |
|
|
/* at this point, `idx->offsets' can't be NULL */ |
cur_offset = idx->offsets[0] - 1; |
|
/* sanity check */ |
if ( cur_offset >= idx->data_size ) |
{ |
FT_TRACE0(( "cff_index_get_pointers:" |
" invalid first offset value %d set to zero\n", |
cur_offset )); |
cur_offset = 0; |
} |
|
if ( !pool ) |
t[0] = org_bytes + cur_offset; |
else |
t[0] = new_bytes + cur_offset; |
|
for ( n = 1; n <= idx->count; n++ ) |
{ |
FT_ULong next_offset = idx->offsets[n] - 1; |
|
|
/* empty slot + two sanity checks for invalid offset tables */ |
if ( next_offset == 0 || |
next_offset < cur_offset || |
( next_offset >= idx->data_size && n < idx->count ) ) |
next_offset = cur_offset; |
|
if ( !pool ) |
t[n] = org_bytes + next_offset; |
else |
{ |
t[n] = new_bytes + next_offset + extra; |
|
if ( next_offset != cur_offset ) |
{ |
FT_MEM_COPY( t[n - 1], org_bytes + cur_offset, t[n] - t[n - 1] ); |
t[n][0] = '\0'; |
t[n] += 1; |
extra++; |
} |
} |
|
cur_offset = next_offset; |
} |
*table = t; |
|
if ( pool ) |
*pool = new_bytes; |
} |
|
Exit: |
return error; |
} |
|
|
FT_LOCAL_DEF( FT_Error ) |
cff_index_access_element( CFF_Index idx, |
FT_UInt element, |
FT_Byte** pbytes, |
FT_ULong* pbyte_len ) |
{ |
FT_Error error = FT_Err_Ok; |
|
|
if ( idx && idx->count > element ) |
{ |
/* compute start and end offsets */ |
FT_Stream stream = idx->stream; |
FT_ULong off1, off2 = 0; |
|
|
/* load offsets from file or the offset table */ |
if ( !idx->offsets ) |
{ |
FT_ULong pos = element * idx->off_size; |
|
|
if ( FT_STREAM_SEEK( idx->start + 3 + pos ) ) |
goto Exit; |
|
off1 = cff_index_read_offset( idx, &error ); |
if ( error ) |
goto Exit; |
|
if ( off1 != 0 ) |
{ |
do |
{ |
element++; |
off2 = cff_index_read_offset( idx, &error ); |
} |
while ( off2 == 0 && element < idx->count ); |
} |
} |
else /* use offsets table */ |
{ |
off1 = idx->offsets[element]; |
if ( off1 ) |
{ |
do |
{ |
element++; |
off2 = idx->offsets[element]; |
|
} while ( off2 == 0 && element < idx->count ); |
} |
} |
|
/* XXX: should check off2 does not exceed the end of this entry; */ |
/* at present, only truncate off2 at the end of this stream */ |
if ( off2 > stream->size + 1 || |
idx->data_offset > stream->size - off2 + 1 ) |
{ |
FT_ERROR(( "cff_index_access_element:" |
" offset to next entry (%d)" |
" exceeds the end of stream (%d)\n", |
off2, stream->size - idx->data_offset + 1 )); |
off2 = stream->size - idx->data_offset + 1; |
} |
|
/* access element */ |
if ( off1 && off2 > off1 ) |
{ |
*pbyte_len = off2 - off1; |
|
if ( idx->bytes ) |
{ |
/* this index was completely loaded in memory, that's easy */ |
*pbytes = idx->bytes + off1 - 1; |
} |
else |
{ |
/* this index is still on disk/file, access it through a frame */ |
if ( FT_STREAM_SEEK( idx->data_offset + off1 - 1 ) || |
FT_FRAME_EXTRACT( off2 - off1, *pbytes ) ) |
goto Exit; |
} |
} |
else |
{ |
/* empty index element */ |
*pbytes = 0; |
*pbyte_len = 0; |
} |
} |
else |
error = FT_THROW( Invalid_Argument ); |
|
Exit: |
return error; |
} |
|
|
FT_LOCAL_DEF( void ) |
cff_index_forget_element( CFF_Index idx, |
FT_Byte** pbytes ) |
{ |
if ( idx->bytes == 0 ) |
{ |
FT_Stream stream = idx->stream; |
|
|
FT_FRAME_RELEASE( *pbytes ); |
} |
} |
|
|
/* get an entry from Name INDEX */ |
FT_LOCAL_DEF( FT_String* ) |
cff_index_get_name( CFF_Font font, |
FT_UInt element ) |
{ |
CFF_Index idx = &font->name_index; |
FT_Memory memory = idx->stream->memory; |
FT_Byte* bytes; |
FT_ULong byte_len; |
FT_Error error; |
FT_String* name = 0; |
|
|
error = cff_index_access_element( idx, element, &bytes, &byte_len ); |
if ( error ) |
goto Exit; |
|
if ( !FT_ALLOC( name, byte_len + 1 ) ) |
{ |
FT_MEM_COPY( name, bytes, byte_len ); |
name[byte_len] = 0; |
} |
cff_index_forget_element( idx, &bytes ); |
|
Exit: |
return name; |
} |
|
|
/* get an entry from String INDEX */ |
FT_LOCAL_DEF( FT_String* ) |
cff_index_get_string( CFF_Font font, |
FT_UInt element ) |
{ |
return ( element < font->num_strings ) |
? (FT_String*)font->strings[element] |
: NULL; |
} |
|
|
FT_LOCAL_DEF( FT_String* ) |
cff_index_get_sid_string( CFF_Font font, |
FT_UInt sid ) |
{ |
/* value 0xFFFFU indicates a missing dictionary entry */ |
if ( sid == 0xFFFFU ) |
return NULL; |
|
/* if it is not a standard string, return it */ |
if ( sid > 390 ) |
return cff_index_get_string( font, sid - 391 ); |
|
/* CID-keyed CFF fonts don't have glyph names */ |
if ( !font->psnames ) |
return NULL; |
|
/* this is a standard string */ |
return (FT_String *)font->psnames->adobe_std_strings( sid ); |
} |
|
|
/*************************************************************************/ |
/*************************************************************************/ |
/*** ***/ |
/*** FD Select table support ***/ |
/*** ***/ |
/*************************************************************************/ |
/*************************************************************************/ |
|
|
static void |
CFF_Done_FD_Select( CFF_FDSelect fdselect, |
FT_Stream stream ) |
{ |
if ( fdselect->data ) |
FT_FRAME_RELEASE( fdselect->data ); |
|
fdselect->data_size = 0; |
fdselect->format = 0; |
fdselect->range_count = 0; |
} |
|
|
static FT_Error |
CFF_Load_FD_Select( CFF_FDSelect fdselect, |
FT_UInt num_glyphs, |
FT_Stream stream, |
FT_ULong offset ) |
{ |
FT_Error error; |
FT_Byte format; |
FT_UInt num_ranges; |
|
|
/* read format */ |
if ( FT_STREAM_SEEK( offset ) || FT_READ_BYTE( format ) ) |
goto Exit; |
|
fdselect->format = format; |
fdselect->cache_count = 0; /* clear cache */ |
|
switch ( format ) |
{ |
case 0: /* format 0, that's simple */ |
fdselect->data_size = num_glyphs; |
goto Load_Data; |
|
case 3: /* format 3, a tad more complex */ |
if ( FT_READ_USHORT( num_ranges ) ) |
goto Exit; |
|
fdselect->data_size = num_ranges * 3 + 2; |
|
Load_Data: |
if ( FT_FRAME_EXTRACT( fdselect->data_size, fdselect->data ) ) |
goto Exit; |
break; |
|
default: /* hmm... that's wrong */ |
error = FT_THROW( Invalid_File_Format ); |
} |
|
Exit: |
return error; |
} |
|
|
FT_LOCAL_DEF( FT_Byte ) |
cff_fd_select_get( CFF_FDSelect fdselect, |
FT_UInt glyph_index ) |
{ |
FT_Byte fd = 0; |
|
|
switch ( fdselect->format ) |
{ |
case 0: |
fd = fdselect->data[glyph_index]; |
break; |
|
case 3: |
/* first, compare to cache */ |
if ( (FT_UInt)( glyph_index - fdselect->cache_first ) < |
fdselect->cache_count ) |
{ |
fd = fdselect->cache_fd; |
break; |
} |
|
/* then, lookup the ranges array */ |
{ |
FT_Byte* p = fdselect->data; |
FT_Byte* p_limit = p + fdselect->data_size; |
FT_Byte fd2; |
FT_UInt first, limit; |
|
|
first = FT_NEXT_USHORT( p ); |
do |
{ |
if ( glyph_index < first ) |
break; |
|
fd2 = *p++; |
limit = FT_NEXT_USHORT( p ); |
|
if ( glyph_index < limit ) |
{ |
fd = fd2; |
|
/* update cache */ |
fdselect->cache_first = first; |
fdselect->cache_count = limit-first; |
fdselect->cache_fd = fd2; |
break; |
} |
first = limit; |
|
} while ( p < p_limit ); |
} |
break; |
|
default: |
; |
} |
|
return fd; |
} |
|
|
/*************************************************************************/ |
/*************************************************************************/ |
/*** ***/ |
/*** CFF font support ***/ |
/*** ***/ |
/*************************************************************************/ |
/*************************************************************************/ |
|
static FT_Error |
cff_charset_compute_cids( CFF_Charset charset, |
FT_UInt num_glyphs, |
FT_Memory memory ) |
{ |
FT_Error error = FT_Err_Ok; |
FT_UInt i; |
FT_Long j; |
FT_UShort max_cid = 0; |
|
|
if ( charset->max_cid > 0 ) |
goto Exit; |
|
for ( i = 0; i < num_glyphs; i++ ) |
{ |
if ( charset->sids[i] > max_cid ) |
max_cid = charset->sids[i]; |
} |
|
if ( FT_NEW_ARRAY( charset->cids, (FT_ULong)max_cid + 1 ) ) |
goto Exit; |
|
/* When multiple GIDs map to the same CID, we choose the lowest */ |
/* GID. This is not described in any spec, but it matches the */ |
/* behaviour of recent Acroread versions. */ |
for ( j = num_glyphs - 1; j >= 0 ; j-- ) |
charset->cids[charset->sids[j]] = (FT_UShort)j; |
|
charset->max_cid = max_cid; |
charset->num_glyphs = num_glyphs; |
|
Exit: |
return error; |
} |
|
|
FT_LOCAL_DEF( FT_UInt ) |
cff_charset_cid_to_gindex( CFF_Charset charset, |
FT_UInt cid ) |
{ |
FT_UInt result = 0; |
|
|
if ( cid <= charset->max_cid ) |
result = charset->cids[cid]; |
|
return result; |
} |
|
|
static void |
cff_charset_free_cids( CFF_Charset charset, |
FT_Memory memory ) |
{ |
FT_FREE( charset->cids ); |
charset->max_cid = 0; |
} |
|
|
static void |
cff_charset_done( CFF_Charset charset, |
FT_Stream stream ) |
{ |
FT_Memory memory = stream->memory; |
|
|
cff_charset_free_cids( charset, memory ); |
|
FT_FREE( charset->sids ); |
charset->format = 0; |
charset->offset = 0; |
} |
|
|
static FT_Error |
cff_charset_load( CFF_Charset charset, |
FT_UInt num_glyphs, |
FT_Stream stream, |
FT_ULong base_offset, |
FT_ULong offset, |
FT_Bool invert ) |
{ |
FT_Memory memory = stream->memory; |
FT_Error error = FT_Err_Ok; |
FT_UShort glyph_sid; |
|
|
/* If the the offset is greater than 2, we have to parse the */ |
/* charset table. */ |
if ( offset > 2 ) |
{ |
FT_UInt j; |
|
|
charset->offset = base_offset + offset; |
|
/* Get the format of the table. */ |
if ( FT_STREAM_SEEK( charset->offset ) || |
FT_READ_BYTE( charset->format ) ) |
goto Exit; |
|
/* Allocate memory for sids. */ |
if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) |
goto Exit; |
|
/* assign the .notdef glyph */ |
charset->sids[0] = 0; |
|
switch ( charset->format ) |
{ |
case 0: |
if ( num_glyphs > 0 ) |
{ |
if ( FT_FRAME_ENTER( ( num_glyphs - 1 ) * 2 ) ) |
goto Exit; |
|
for ( j = 1; j < num_glyphs; j++ ) |
charset->sids[j] = FT_GET_USHORT(); |
|
FT_FRAME_EXIT(); |
} |
break; |
|
case 1: |
case 2: |
{ |
FT_UInt nleft; |
FT_UInt i; |
|
|
j = 1; |
|
while ( j < num_glyphs ) |
{ |
/* Read the first glyph sid of the range. */ |
if ( FT_READ_USHORT( glyph_sid ) ) |
goto Exit; |
|
/* Read the number of glyphs in the range. */ |
if ( charset->format == 2 ) |
{ |
if ( FT_READ_USHORT( nleft ) ) |
goto Exit; |
} |
else |
{ |
if ( FT_READ_BYTE( nleft ) ) |
goto Exit; |
} |
|
/* try to rescue some of the SIDs if `nleft' is too large */ |
if ( glyph_sid > 0xFFFFL - nleft ) |
{ |
FT_ERROR(( "cff_charset_load: invalid SID range trimmed" |
" nleft=%d -> %d\n", nleft, 0xFFFFL - glyph_sid )); |
nleft = ( FT_UInt )( 0xFFFFL - glyph_sid ); |
} |
|
/* Fill in the range of sids -- `nleft + 1' glyphs. */ |
for ( i = 0; j < num_glyphs && i <= nleft; i++, j++, glyph_sid++ ) |
charset->sids[j] = glyph_sid; |
} |
} |
break; |
|
default: |
FT_ERROR(( "cff_charset_load: invalid table format\n" )); |
error = FT_THROW( Invalid_File_Format ); |
goto Exit; |
} |
} |
else |
{ |
/* Parse default tables corresponding to offset == 0, 1, or 2. */ |
/* CFF specification intimates the following: */ |
/* */ |
/* In order to use a predefined charset, the following must be */ |
/* true: The charset constructed for the glyphs in the font's */ |
/* charstrings dictionary must match the predefined charset in */ |
/* the first num_glyphs. */ |
|
charset->offset = offset; /* record charset type */ |
|
switch ( (FT_UInt)offset ) |
{ |
case 0: |
if ( num_glyphs > 229 ) |
{ |
FT_ERROR(( "cff_charset_load: implicit charset larger than\n" |
"predefined charset (Adobe ISO-Latin)\n" )); |
error = FT_THROW( Invalid_File_Format ); |
goto Exit; |
} |
|
/* Allocate memory for sids. */ |
if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) |
goto Exit; |
|
/* Copy the predefined charset into the allocated memory. */ |
FT_ARRAY_COPY( charset->sids, cff_isoadobe_charset, num_glyphs ); |
|
break; |
|
case 1: |
if ( num_glyphs > 166 ) |
{ |
FT_ERROR(( "cff_charset_load: implicit charset larger than\n" |
"predefined charset (Adobe Expert)\n" )); |
error = FT_THROW( Invalid_File_Format ); |
goto Exit; |
} |
|
/* Allocate memory for sids. */ |
if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) |
goto Exit; |
|
/* Copy the predefined charset into the allocated memory. */ |
FT_ARRAY_COPY( charset->sids, cff_expert_charset, num_glyphs ); |
|
break; |
|
case 2: |
if ( num_glyphs > 87 ) |
{ |
FT_ERROR(( "cff_charset_load: implicit charset larger than\n" |
"predefined charset (Adobe Expert Subset)\n" )); |
error = FT_THROW( Invalid_File_Format ); |
goto Exit; |
} |
|
/* Allocate memory for sids. */ |
if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) ) |
goto Exit; |
|
/* Copy the predefined charset into the allocated memory. */ |
FT_ARRAY_COPY( charset->sids, cff_expertsubset_charset, num_glyphs ); |
|
break; |
|
default: |
error = FT_THROW( Invalid_File_Format ); |
goto Exit; |
} |
} |
|
/* we have to invert the `sids' array for subsetted CID-keyed fonts */ |
if ( invert ) |
error = cff_charset_compute_cids( charset, num_glyphs, memory ); |
|
Exit: |
/* Clean up if there was an error. */ |
if ( error ) |
{ |
FT_FREE( charset->sids ); |
FT_FREE( charset->cids ); |
charset->format = 0; |
charset->offset = 0; |
charset->sids = 0; |
} |
|
return error; |
} |
|
|
static void |
cff_encoding_done( CFF_Encoding encoding ) |
{ |
encoding->format = 0; |
encoding->offset = 0; |
encoding->count = 0; |
} |
|
|
static FT_Error |
cff_encoding_load( CFF_Encoding encoding, |
CFF_Charset charset, |
FT_UInt num_glyphs, |
FT_Stream stream, |
FT_ULong base_offset, |
FT_ULong offset ) |
{ |
FT_Error error = FT_Err_Ok; |
FT_UInt count; |
FT_UInt j; |
FT_UShort glyph_sid; |
FT_UInt glyph_code; |
|
|
/* Check for charset->sids. If we do not have this, we fail. */ |
if ( !charset->sids ) |
{ |
error = FT_THROW( Invalid_File_Format ); |
goto Exit; |
} |
|
/* Zero out the code to gid/sid mappings. */ |
for ( j = 0; j < 256; j++ ) |
{ |
encoding->sids [j] = 0; |
encoding->codes[j] = 0; |
} |
|
/* Note: The encoding table in a CFF font is indexed by glyph index; */ |
/* the first encoded glyph index is 1. Hence, we read the character */ |
/* code (`glyph_code') at index j and make the assignment: */ |
/* */ |
/* encoding->codes[glyph_code] = j + 1 */ |
/* */ |
/* We also make the assignment: */ |
/* */ |
/* encoding->sids[glyph_code] = charset->sids[j + 1] */ |
/* */ |
/* This gives us both a code to GID and a code to SID mapping. */ |
|
if ( offset > 1 ) |
{ |
encoding->offset = base_offset + offset; |
|
/* we need to parse the table to determine its size */ |
if ( FT_STREAM_SEEK( encoding->offset ) || |
FT_READ_BYTE( encoding->format ) || |
FT_READ_BYTE( count ) ) |
goto Exit; |
|
switch ( encoding->format & 0x7F ) |
{ |
case 0: |
{ |
FT_Byte* p; |
|
|
/* By convention, GID 0 is always ".notdef" and is never */ |
/* coded in the font. Hence, the number of codes found */ |
/* in the table is `count+1'. */ |
/* */ |
encoding->count = count + 1; |
|
if ( FT_FRAME_ENTER( count ) ) |
goto Exit; |
|
p = (FT_Byte*)stream->cursor; |
|
for ( j = 1; j <= count; j++ ) |
{ |
glyph_code = *p++; |
|
/* Make sure j is not too big. */ |
if ( j < num_glyphs ) |
{ |
/* Assign code to GID mapping. */ |
encoding->codes[glyph_code] = (FT_UShort)j; |
|
/* Assign code to SID mapping. */ |
encoding->sids[glyph_code] = charset->sids[j]; |
} |
} |
|
FT_FRAME_EXIT(); |
} |
break; |
|
case 1: |
{ |
FT_UInt nleft; |
FT_UInt i = 1; |
FT_UInt k; |
|
|
encoding->count = 0; |
|
/* Parse the Format1 ranges. */ |
for ( j = 0; j < count; j++, i += nleft ) |
{ |
/* Read the first glyph code of the range. */ |
if ( FT_READ_BYTE( glyph_code ) ) |
goto Exit; |
|
/* Read the number of codes in the range. */ |
if ( FT_READ_BYTE( nleft ) ) |
goto Exit; |
|
/* Increment nleft, so we read `nleft + 1' codes/sids. */ |
nleft++; |
|
/* compute max number of character codes */ |
if ( (FT_UInt)nleft > encoding->count ) |
encoding->count = nleft; |
|
/* Fill in the range of codes/sids. */ |
for ( k = i; k < nleft + i; k++, glyph_code++ ) |
{ |
/* Make sure k is not too big. */ |
if ( k < num_glyphs && glyph_code < 256 ) |
{ |
/* Assign code to GID mapping. */ |
encoding->codes[glyph_code] = (FT_UShort)k; |
|
/* Assign code to SID mapping. */ |
encoding->sids[glyph_code] = charset->sids[k]; |
} |
} |
} |
|
/* simple check; one never knows what can be found in a font */ |
if ( encoding->count > 256 ) |
encoding->count = 256; |
} |
break; |
|
default: |
FT_ERROR(( "cff_encoding_load: invalid table format\n" )); |
error = FT_THROW( Invalid_File_Format ); |
goto Exit; |
} |
|
/* Parse supplemental encodings, if any. */ |
if ( encoding->format & 0x80 ) |
{ |
FT_UInt gindex; |
|
|
/* count supplements */ |
if ( FT_READ_BYTE( count ) ) |
goto Exit; |
|
for ( j = 0; j < count; j++ ) |
{ |
/* Read supplemental glyph code. */ |
if ( FT_READ_BYTE( glyph_code ) ) |
goto Exit; |
|
/* Read the SID associated with this glyph code. */ |
if ( FT_READ_USHORT( glyph_sid ) ) |
goto Exit; |
|
/* Assign code to SID mapping. */ |
encoding->sids[glyph_code] = glyph_sid; |
|
/* First, look up GID which has been assigned to */ |
/* SID glyph_sid. */ |
for ( gindex = 0; gindex < num_glyphs; gindex++ ) |
{ |
if ( charset->sids[gindex] == glyph_sid ) |
{ |
encoding->codes[glyph_code] = (FT_UShort)gindex; |
break; |
} |
} |
} |
} |
} |
else |
{ |
/* We take into account the fact a CFF font can use a predefined */ |
/* encoding without containing all of the glyphs encoded by this */ |
/* encoding (see the note at the end of section 12 in the CFF */ |
/* specification). */ |
|
switch ( (FT_UInt)offset ) |
{ |
case 0: |
/* First, copy the code to SID mapping. */ |
FT_ARRAY_COPY( encoding->sids, cff_standard_encoding, 256 ); |
goto Populate; |
|
case 1: |
/* First, copy the code to SID mapping. */ |
FT_ARRAY_COPY( encoding->sids, cff_expert_encoding, 256 ); |
|
Populate: |
/* Construct code to GID mapping from code to SID mapping */ |
/* and charset. */ |
|
encoding->count = 0; |
|
error = cff_charset_compute_cids( charset, num_glyphs, |
stream->memory ); |
if ( error ) |
goto Exit; |
|
for ( j = 0; j < 256; j++ ) |
{ |
FT_UInt sid = encoding->sids[j]; |
FT_UInt gid = 0; |
|
|
if ( sid ) |
gid = cff_charset_cid_to_gindex( charset, sid ); |
|
if ( gid != 0 ) |
{ |
encoding->codes[j] = (FT_UShort)gid; |
encoding->count = j + 1; |
} |
else |
{ |
encoding->codes[j] = 0; |
encoding->sids [j] = 0; |
} |
} |
break; |
|
default: |
FT_ERROR(( "cff_encoding_load: invalid table format\n" )); |
error = FT_THROW( Invalid_File_Format ); |
goto Exit; |
} |
} |
|
Exit: |
|
/* Clean up if there was an error. */ |
return error; |
} |
|
|
static FT_Error |
cff_subfont_load( CFF_SubFont font, |
CFF_Index idx, |
FT_UInt font_index, |
FT_Stream stream, |
FT_ULong base_offset, |
FT_Library library ) |
{ |
FT_Error error; |
CFF_ParserRec parser; |
FT_Byte* dict = NULL; |
FT_ULong dict_len; |
CFF_FontRecDict top = &font->font_dict; |
CFF_Private priv = &font->private_dict; |
|
|
cff_parser_init( &parser, CFF_CODE_TOPDICT, &font->font_dict, library ); |
|
/* set defaults */ |
FT_MEM_ZERO( top, sizeof ( *top ) ); |
|
top->underline_position = -( 100L << 16 ); |
top->underline_thickness = 50L << 16; |
top->charstring_type = 2; |
top->font_matrix.xx = 0x10000L; |
top->font_matrix.yy = 0x10000L; |
top->cid_count = 8720; |
|
/* we use the implementation specific SID value 0xFFFF to indicate */ |
/* missing entries */ |
top->version = 0xFFFFU; |
top->notice = 0xFFFFU; |
top->copyright = 0xFFFFU; |
top->full_name = 0xFFFFU; |
top->family_name = 0xFFFFU; |
top->weight = 0xFFFFU; |
top->embedded_postscript = 0xFFFFU; |
|
top->cid_registry = 0xFFFFU; |
top->cid_ordering = 0xFFFFU; |
top->cid_font_name = 0xFFFFU; |
|
error = cff_index_access_element( idx, font_index, &dict, &dict_len ); |
if ( !error ) |
{ |
FT_TRACE4(( " top dictionary:\n" )); |
error = cff_parser_run( &parser, dict, dict + dict_len ); |
} |
|
cff_index_forget_element( idx, &dict ); |
|
if ( error ) |
goto Exit; |
|
/* if it is a CID font, we stop there */ |
if ( top->cid_registry != 0xFFFFU ) |
goto Exit; |
|
/* parse the private dictionary, if any */ |
if ( top->private_offset && top->private_size ) |
{ |
/* set defaults */ |
FT_MEM_ZERO( priv, sizeof ( *priv ) ); |
|
priv->blue_shift = 7; |
priv->blue_fuzz = 1; |
priv->lenIV = -1; |
priv->expansion_factor = (FT_Fixed)( 0.06 * 0x10000L ); |
priv->blue_scale = (FT_Fixed)( 0.039625 * 0x10000L * 1000 ); |
|
cff_parser_init( &parser, CFF_CODE_PRIVATE, priv, library ); |
|
if ( FT_STREAM_SEEK( base_offset + font->font_dict.private_offset ) || |
FT_FRAME_ENTER( font->font_dict.private_size ) ) |
goto Exit; |
|
FT_TRACE4(( " private dictionary:\n" )); |
error = cff_parser_run( &parser, |
(FT_Byte*)stream->cursor, |
(FT_Byte*)stream->limit ); |
FT_FRAME_EXIT(); |
if ( error ) |
goto Exit; |
|
/* ensure that `num_blue_values' is even */ |
priv->num_blue_values &= ~1; |
} |
|
/* read the local subrs, if any */ |
if ( priv->local_subrs_offset ) |
{ |
if ( FT_STREAM_SEEK( base_offset + top->private_offset + |
priv->local_subrs_offset ) ) |
goto Exit; |
|
error = cff_index_init( &font->local_subrs_index, stream, 1 ); |
if ( error ) |
goto Exit; |
|
error = cff_index_get_pointers( &font->local_subrs_index, |
&font->local_subrs, NULL ); |
if ( error ) |
goto Exit; |
} |
|
Exit: |
return error; |
} |
|
|
static void |
cff_subfont_done( FT_Memory memory, |
CFF_SubFont subfont ) |
{ |
if ( subfont ) |
{ |
cff_index_done( &subfont->local_subrs_index ); |
FT_FREE( subfont->local_subrs ); |
} |
} |
|
|
FT_LOCAL_DEF( FT_Error ) |
cff_font_load( FT_Library library, |
FT_Stream stream, |
FT_Int face_index, |
CFF_Font font, |
FT_Bool pure_cff ) |
{ |
static const FT_Frame_Field cff_header_fields[] = |
{ |
#undef FT_STRUCTURE |
#define FT_STRUCTURE CFF_FontRec |
|
FT_FRAME_START( 4 ), |
FT_FRAME_BYTE( version_major ), |
FT_FRAME_BYTE( version_minor ), |
FT_FRAME_BYTE( header_size ), |
FT_FRAME_BYTE( absolute_offsize ), |
FT_FRAME_END |
}; |
|
FT_Error error; |
FT_Memory memory = stream->memory; |
FT_ULong base_offset; |
CFF_FontRecDict dict; |
CFF_IndexRec string_index; |
FT_Int subfont_index; |
|
|
FT_ZERO( font ); |
FT_ZERO( &string_index ); |
|
font->stream = stream; |
font->memory = memory; |
dict = &font->top_font.font_dict; |
base_offset = FT_STREAM_POS(); |
|
/* read CFF font header */ |
if ( FT_STREAM_READ_FIELDS( cff_header_fields, font ) ) |
goto Exit; |
|
/* check format */ |
if ( font->version_major != 1 || |
font->header_size < 4 || |
font->absolute_offsize > 4 ) |
{ |
FT_TRACE2(( " not a CFF font header\n" )); |
error = FT_THROW( Unknown_File_Format ); |
goto Exit; |
} |
|
/* skip the rest of the header */ |
if ( FT_STREAM_SKIP( font->header_size - 4 ) ) |
goto Exit; |
|
/* read the name, top dict, string and global subrs index */ |
if ( FT_SET_ERROR( cff_index_init( &font->name_index, |
stream, 0 ) ) || |
FT_SET_ERROR( cff_index_init( &font->font_dict_index, |
stream, 0 ) ) || |
FT_SET_ERROR( cff_index_init( &string_index, |
stream, 1 ) ) || |
FT_SET_ERROR( cff_index_init( &font->global_subrs_index, |
stream, 1 ) ) || |
FT_SET_ERROR( cff_index_get_pointers( &string_index, |
&font->strings, |
&font->string_pool ) ) ) |
goto Exit; |
|
font->num_strings = string_index.count; |
|
if ( pure_cff ) |
{ |
/* well, we don't really forget the `disabled' fonts... */ |
subfont_index = face_index; |
|
if ( subfont_index >= (FT_Int)font->name_index.count ) |
{ |
FT_ERROR(( "cff_font_load:" |
" invalid subfont index for pure CFF font (%d)\n", |
subfont_index )); |
error = FT_THROW( Invalid_Argument ); |
goto Exit; |
} |
|
font->num_faces = font->name_index.count; |
} |
else |
{ |
subfont_index = 0; |
|
if ( font->name_index.count > 1 ) |
{ |
FT_ERROR(( "cff_font_load:" |
" invalid CFF font with multiple subfonts\n" |
" " |
" in SFNT wrapper\n" )); |
error = FT_THROW( Invalid_File_Format ); |
goto Exit; |
} |
} |
|
/* in case of a font format check, simply exit now */ |
if ( face_index < 0 ) |
goto Exit; |
|
/* now, parse the top-level font dictionary */ |
FT_TRACE4(( "parsing top-level\n" )); |
error = cff_subfont_load( &font->top_font, |
&font->font_dict_index, |
subfont_index, |
stream, |
base_offset, |
library ); |
if ( error ) |
goto Exit; |
|
if ( FT_STREAM_SEEK( base_offset + dict->charstrings_offset ) ) |
goto Exit; |
|
error = cff_index_init( &font->charstrings_index, stream, 0 ); |
if ( error ) |
goto Exit; |
|
/* now, check for a CID font */ |
if ( dict->cid_registry != 0xFFFFU ) |
{ |
CFF_IndexRec fd_index; |
CFF_SubFont sub = NULL; |
FT_UInt idx; |
|
|
/* this is a CID-keyed font, we must now allocate a table of */ |
/* sub-fonts, then load each of them separately */ |
if ( FT_STREAM_SEEK( base_offset + dict->cid_fd_array_offset ) ) |
goto Exit; |
|
error = cff_index_init( &fd_index, stream, 0 ); |
if ( error ) |
goto Exit; |
|
if ( fd_index.count > CFF_MAX_CID_FONTS ) |
{ |
FT_TRACE0(( "cff_font_load: FD array too large in CID font\n" )); |
goto Fail_CID; |
} |
|
/* allocate & read each font dict independently */ |
font->num_subfonts = fd_index.count; |
if ( FT_NEW_ARRAY( sub, fd_index.count ) ) |
goto Fail_CID; |
|
/* set up pointer table */ |
for ( idx = 0; idx < fd_index.count; idx++ ) |
font->subfonts[idx] = sub + idx; |
|
/* now load each subfont independently */ |
for ( idx = 0; idx < fd_index.count; idx++ ) |
{ |
sub = font->subfonts[idx]; |
FT_TRACE4(( "parsing subfont %u\n", idx )); |
error = cff_subfont_load( sub, &fd_index, idx, |
stream, base_offset, library ); |
if ( error ) |
goto Fail_CID; |
} |
|
/* now load the FD Select array */ |
error = CFF_Load_FD_Select( &font->fd_select, |
font->charstrings_index.count, |
stream, |
base_offset + dict->cid_fd_select_offset ); |
|
Fail_CID: |
cff_index_done( &fd_index ); |
|
if ( error ) |
goto Exit; |
} |
else |
font->num_subfonts = 0; |
|
/* read the charstrings index now */ |
if ( dict->charstrings_offset == 0 ) |
{ |
FT_ERROR(( "cff_font_load: no charstrings offset\n" )); |
error = FT_THROW( Invalid_File_Format ); |
goto Exit; |
} |
|
font->num_glyphs = font->charstrings_index.count; |
|
error = cff_index_get_pointers( &font->global_subrs_index, |
&font->global_subrs, NULL ); |
|
if ( error ) |
goto Exit; |
|
/* read the Charset and Encoding tables if available */ |
if ( font->num_glyphs > 0 ) |
{ |
FT_Bool invert = FT_BOOL( dict->cid_registry != 0xFFFFU && pure_cff ); |
|
|
error = cff_charset_load( &font->charset, font->num_glyphs, stream, |
base_offset, dict->charset_offset, invert ); |
if ( error ) |
goto Exit; |
|
/* CID-keyed CFFs don't have an encoding */ |
if ( dict->cid_registry == 0xFFFFU ) |
{ |
error = cff_encoding_load( &font->encoding, |
&font->charset, |
font->num_glyphs, |
stream, |
base_offset, |
dict->encoding_offset ); |
if ( error ) |
goto Exit; |
} |
} |
|
/* get the font name (/CIDFontName for CID-keyed fonts, */ |
/* /FontName otherwise) */ |
font->font_name = cff_index_get_name( font, subfont_index ); |
|
Exit: |
cff_index_done( &string_index ); |
|
return error; |
} |
|
|
FT_LOCAL_DEF( void ) |
cff_font_done( CFF_Font font ) |
{ |
FT_Memory memory = font->memory; |
FT_UInt idx; |
|
|
cff_index_done( &font->global_subrs_index ); |
cff_index_done( &font->font_dict_index ); |
cff_index_done( &font->name_index ); |
cff_index_done( &font->charstrings_index ); |
|
/* release font dictionaries, but only if working with */ |
/* a CID keyed CFF font */ |
if ( font->num_subfonts > 0 ) |
{ |
for ( idx = 0; idx < font->num_subfonts; idx++ ) |
cff_subfont_done( memory, font->subfonts[idx] ); |
|
/* the subfonts array has been allocated as a single block */ |
FT_FREE( font->subfonts[0] ); |
} |
|
cff_encoding_done( &font->encoding ); |
cff_charset_done( &font->charset, font->stream ); |
|
cff_subfont_done( memory, &font->top_font ); |
|
CFF_Done_FD_Select( &font->fd_select, font->stream ); |
|
FT_FREE( font->font_info ); |
|
FT_FREE( font->font_name ); |
FT_FREE( font->global_subrs ); |
FT_FREE( font->strings ); |
FT_FREE( font->string_pool ); |
|
if ( font->cf2_instance.finalizer ) |
{ |
font->cf2_instance.finalizer( font->cf2_instance.data ); |
FT_FREE( font->cf2_instance.data ); |
} |
} |
|
|
/* END */ |