本文整理汇总了C++中FT_FRAME_ENTER函数的典型用法代码示例。如果您正苦于以下问题：C++ FT_FRAME_ENTER函数的具体用法？C++ FT_FRAME_ENTER怎么用？C++ FT_FRAME_ENTER使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了FT_FRAME_ENTER函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: tt_face_load_gasp
tt_face_load_gasp( TT_Face face,
FT_Stream stream )
{
FT_Error error;
FT_Memory memory = stream->memory;
FT_UInt j,num_ranges;
TT_GaspRange gaspranges;
/* the gasp table is optional */
error = face->goto_table( face, TTAG_gasp, stream, 0 );
if ( error )
goto Exit;
if ( FT_FRAME_ENTER( 4L ) )
goto Exit;
face->gasp.version = FT_GET_USHORT();
face->gasp.numRanges = FT_GET_USHORT();
FT_FRAME_EXIT();
/* only support versions 0 and 1 of the table */
if ( face->gasp.version >= 2 )
{
face->gasp.numRanges = 0;
error = SFNT_Err_Invalid_Table;
goto Exit;
}
num_ranges = face->gasp.numRanges;
FT_TRACE3(( "numRanges: %u\n", num_ranges ));
if ( FT_QNEW_ARRAY( gaspranges, num_ranges ) ||
FT_FRAME_ENTER( num_ranges * 4L ) )
goto Exit;
face->gasp.gaspRanges = gaspranges;
for ( j = 0; j < num_ranges; j++ )
{
gaspranges[j].maxPPEM = FT_GET_USHORT();
gaspranges[j].gaspFlag = FT_GET_USHORT();
FT_TRACE3(( "gaspRange %d: rangeMaxPPEM %5d, rangeGaspBehavior 0x%x\n",
j,
gaspranges[j].maxPPEM,
gaspranges[j].gaspFlag ));
}
FT_FRAME_EXIT();
Exit:
return error;
}
开发者ID:howardgao-mt，项目名称:myd3dlib，代码行数:56，代码来源:ttload.c
示例2: T1_Read_Metrics
T1_Read_Metrics( FT_Face t1_face,
FT_Stream stream )
{
FT_Error error;
FT_Byte* start;
if ( FT_FRAME_ENTER( stream->size ) )
return error;
start = (FT_Byte*)stream->cursor;
if ( stream->size >= ft_strlen( "StartFontMetrics" ) &&
ft_strncmp( (const char*)start, "StartFontMetrics",
ft_strlen( "StartFontMetrics" ) ) == 0 )
error = T1_Read_AFM( t1_face, stream );
else if ( stream->size > 6 &&
start[0] == 0x00 && start[1] == 0x01 &&
LITTLE_ENDIAN_UINT( start + 2 ) == stream->size )
error = T1_Read_PFM( t1_face, stream );
else
error = T1_Err_Unknown_File_Format;
FT_FRAME_EXIT();
return error;
}
开发者ID:Bracket-，项目名称:psp-ports，代码行数:29，代码来源:t1afm.c
示例3: read_data_from_FT_Stream
static void
read_data_from_FT_Stream( png_structp png,
png_bytep data,
png_size_t length )
{
FT_Error error;
png_voidp p = png_get_io_ptr( png );
FT_Stream stream = (FT_Stream)p;
if ( FT_FRAME_ENTER( length ) )
{
FT_Error* e = (FT_Error*)png_get_error_ptr( png );
*e = FT_THROW( Invalid_Stream_Read );
png_error( png, NULL );
return;
}
memcpy( data, stream->cursor, length );
FT_FRAME_EXIT();
}
开发者ID:ONLYOFFICE，项目名称:core，代码行数:25，代码来源:pngshim.c
示例4: check_type1_format
static FT_Error
check_type1_format( FT_Stream stream,
const char* header_string,
size_t header_length )
{
FT_Error error;
FT_UShort tag;
FT_Long size;
if ( FT_STREAM_SEEK( 0 ) )
goto Exit;
error = read_pfb_tag( stream, &tag, &size );
if ( error )
goto Exit;
if ( tag != 0x8001U && FT_STREAM_SEEK( 0 ) )
goto Exit;
if ( !FT_FRAME_ENTER( header_length ) )
{
error = 0;
if ( ft_memcmp( stream->cursor, header_string, header_length ) != 0 )
error = T1_Err_Unknown_File_Format;
FT_FRAME_EXIT();
}
Exit:
return error;
}
开发者ID:dfizban，项目名称:remixos-usb-tool，代码行数:33，代码来源:t1parse.c
示例5: cff_index_load_offsets
static FT_Error
cff_index_load_offsets( CFF_Index idx )
{
FT_Error error = 0;
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;
}
开发者ID:Ali-il，项目名称:gamekit，代码行数:59，代码来源:cffload.c
示例6: tt_synth_sfnt_checksum
static FT_UInt32
tt_synth_sfnt_checksum( FT_Stream stream,
FT_ULong length )
{
FT_Error error;
FT_UInt32 checksum = 0;
FT_UInt i;
if ( FT_FRAME_ENTER( length ) )
return 0;
for ( ; length > 3; length -= 4 )
checksum += (FT_UInt32)FT_GET_ULONG();
for ( i = 3; length > 0; length--, i-- )
checksum += (FT_UInt32)FT_GET_BYTE() << ( i * 8 );
FT_FRAME_EXIT();
return checksum;
}
开发者ID:Ruw-Van，项目名称:krkrz，代码行数:22，代码来源:ttobjs.c
示例7: check_type1_format
static FT_Error
check_type1_format( FT_Stream stream,
const char* header_string,
size_t header_length )
{
FT_Error error;
FT_UShort tag;
FT_ULong dummy;
if ( FT_STREAM_SEEK( 0 ) )
goto Exit;
error = read_pfb_tag( stream, &tag, &dummy );
if ( error )
goto Exit;
/* We assume that the first segment in a PFB is always encoded as */
/* text. This might be wrong (and the specification doesn't insist */
/* on that), but we have never seen a counterexample. */
if ( tag != 0x8001U && FT_STREAM_SEEK( 0 ) )
goto Exit;
if ( !FT_FRAME_ENTER( header_length ) )
{
error = FT_Err_Ok;
if ( ft_memcmp( stream->cursor, header_string, header_length ) != 0 )
error = FT_THROW( Unknown_File_Format );
FT_FRAME_EXIT();
}
Exit:
return error;
}
开发者ID:PrinttingGroup，项目名称:SumatraPDF_SpecialPrint，代码行数:36，代码来源:t1parse.c
示例8: tt_face_load_name
tt_face_load_name( TT_Face face,
FT_Stream stream )
{
FT_Error error;
FT_Memory memory = stream->memory;
FT_ULong table_pos, table_len;
FT_ULong storage_start, storage_limit;
FT_UInt count;
TT_NameTable table;
static const FT_Frame_Field name_table_fields[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE TT_NameTableRec
FT_FRAME_START( 6 ),
FT_FRAME_USHORT( format ),
FT_FRAME_USHORT( numNameRecords ),
FT_FRAME_USHORT( storageOffset ),
FT_FRAME_END
};
static const FT_Frame_Field name_record_fields[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE TT_NameEntryRec
/* no FT_FRAME_START */
FT_FRAME_USHORT( platformID ),
FT_FRAME_USHORT( encodingID ),
FT_FRAME_USHORT( languageID ),
FT_FRAME_USHORT( nameID ),
FT_FRAME_USHORT( stringLength ),
FT_FRAME_USHORT( stringOffset ),
FT_FRAME_END
};
table = &face->name_table;
table->stream = stream;
error = face->goto_table( face, TTAG_name, stream, &table_len );
if ( error )
goto Exit;
table_pos = FT_STREAM_POS();
if ( FT_STREAM_READ_FIELDS( name_table_fields, table ) )
goto Exit;
/* Some popular Asian fonts have an invalid `storageOffset' value */
/* (it should be at least "6 + 12*num_names"). However, the string */
/* offsets, computed as "storageOffset + entry->stringOffset", are */
/* valid pointers within the name table... */
/* */
/* We thus can't check `storageOffset' right now. */
/* */
storage_start = table_pos + 6 + 12*table->numNameRecords;
storage_limit = table_pos + table_len;
if ( storage_start > storage_limit )
{
FT_ERROR(( "tt_face_load_name: invalid `name' table\n" ));
error = SFNT_Err_Name_Table_Missing;
goto Exit;
}
/* Allocate the array of name records. */
count = table->numNameRecords;
table->numNameRecords = 0;
if ( FT_NEW_ARRAY( table->names, count ) ||
FT_FRAME_ENTER( count * 12 ) )
goto Exit;
/* Load the name records and determine how much storage is needed */
/* to hold the strings themselves. */
{
TT_NameEntryRec* entry = table->names;
for ( ; count > 0; count-- )
{
if ( FT_STREAM_READ_FIELDS( name_record_fields, entry ) )
continue;
/* check that the name is not empty */
if ( entry->stringLength == 0 )
continue;
/* check that the name string is within the table */
entry->stringOffset += table_pos + table->storageOffset;
if ( entry->stringOffset < storage_start ||
entry->stringOffset + entry->stringLength > storage_limit )
{
/* invalid entry - ignore it */
entry->stringOffset = 0;
entry->stringLength = 0;
continue;
//.........这里部分代码省略.........
开发者ID:howardgao-mt，项目名称:myd3dlib，代码行数:101，代码来源:ttload.c
示例9: fnt_face_get_dll_font
static FT_Error
fnt_face_get_dll_font( FNT_Face face,
FT_Int face_index )
{
FT_Error error;
FT_Stream stream = FT_FACE( face )->stream;
FT_Memory memory = FT_FACE( face )->memory;
WinMZ_HeaderRec mz_header;
face->font = 0;
/* does it begin with an MZ header? */
if ( FT_STREAM_SEEK( 0 ) ||
FT_STREAM_READ_FIELDS( winmz_header_fields, &mz_header ) )
goto Exit;
error = FNT_Err_Unknown_File_Format;
if ( mz_header.magic == WINFNT_MZ_MAGIC )
{
/* yes, now look for an NE header in the file */
WinNE_HeaderRec ne_header;
if ( FT_STREAM_SEEK( mz_header.lfanew ) ||
FT_STREAM_READ_FIELDS( winne_header_fields, &ne_header ) )
goto Exit;
error = FNT_Err_Unknown_File_Format;
if ( ne_header.magic == WINFNT_NE_MAGIC )
{
/* good, now look into the resource table for each FNT resource */
FT_ULong res_offset = mz_header.lfanew +
ne_header.resource_tab_offset;
FT_UShort size_shift;
FT_UShort font_count = 0;
FT_ULong font_offset = 0;
if ( FT_STREAM_SEEK( res_offset ) ||
FT_FRAME_ENTER( ne_header.rname_tab_offset -
ne_header.resource_tab_offset ) )
goto Exit;
size_shift = FT_GET_USHORT_LE();
for (;;)
{
FT_UShort type_id, count;
type_id = FT_GET_USHORT_LE();
if ( !type_id )
break;
count = FT_GET_USHORT_LE();
if ( type_id == 0x8008U )
{
font_count = count;
font_offset = (FT_ULong)( FT_STREAM_POS() + 4 +
( stream->cursor - stream->limit ) );
break;
}
stream->cursor += 4 + count * 12;
}
FT_FRAME_EXIT();
if ( !font_count || !font_offset )
{
FT_TRACE2(( "this file doesn't contain any FNT resources!\n" ));
error = FNT_Err_Unknown_File_Format;
goto Exit;
}
face->root.num_faces = font_count;
if ( face_index >= font_count )
{
error = FNT_Err_Bad_Argument;
goto Exit;
}
if ( FT_NEW( face->font ) )
goto Exit;
if ( FT_STREAM_SEEK( font_offset + face_index * 12 ) ||
FT_FRAME_ENTER( 12 ) )
goto Fail;
face->font->offset = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
face->font->fnt_size = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
face->font->size_shift = size_shift;
stream->cursor += 8;
FT_FRAME_EXIT();
//.........这里部分代码省略.........
开发者ID:1tgr，项目名称:mobius，代码行数:101，代码来源:winfnt.c
示例10: T1_Read_Metrics
T1_Read_Metrics( FT_Face t1_face,
FT_Stream stream )
{
PSAux_Service psaux;
FT_Memory memory = stream->memory;
AFM_ParserRec parser;
AFM_FontInfo fi = NULL;
FT_Error error = FT_ERR( Unknown_File_Format );
T1_Font t1_font = &( (T1_Face)t1_face )->type1;
if ( FT_NEW( fi ) ||
FT_FRAME_ENTER( stream->size ) )
goto Exit;
fi->FontBBox = t1_font->font_bbox;
fi->Ascender = t1_font->font_bbox.yMax;
fi->Descender = t1_font->font_bbox.yMin;
psaux = (PSAux_Service)( (T1_Face)t1_face )->psaux;
if ( psaux->afm_parser_funcs )
{
error = psaux->afm_parser_funcs->init( &parser,
stream->memory,
stream->cursor,
stream->limit );
if ( !error )
{
parser.FontInfo = fi;
parser.get_index = t1_get_index;
parser.user_data = t1_font;
error = psaux->afm_parser_funcs->parse( &parser );
psaux->afm_parser_funcs->done( &parser );
}
}
if ( FT_ERR_EQ( error, Unknown_File_Format ) )
{
FT_Byte* start = stream->cursor;
/* MS Windows allows versions up to 0x3FF without complaining */
if ( stream->size > 6 &&
start[1] < 4 &&
FT_PEEK_ULONG_LE( start + 2 ) == stream->size )
error = T1_Read_PFM( t1_face, stream, fi );
}
if ( !error )
{
t1_font->font_bbox = fi->FontBBox;
t1_face->bbox.xMin = fi->FontBBox.xMin >> 16;
t1_face->bbox.yMin = fi->FontBBox.yMin >> 16;
/* no `U' suffix here to 0xFFFF! */
t1_face->bbox.xMax = ( fi->FontBBox.xMax + 0xFFFF ) >> 16;
t1_face->bbox.yMax = ( fi->FontBBox.yMax + 0xFFFF ) >> 16;
/* no `U' suffix here to 0x8000! */
t1_face->ascender = (FT_Short)( ( fi->Ascender + 0x8000 ) >> 16 );
t1_face->descender = (FT_Short)( ( fi->Descender + 0x8000 ) >> 16 );
if ( fi->NumKernPair )
{
t1_face->face_flags |= FT_FACE_FLAG_KERNING;
( (T1_Face)t1_face )->afm_data = fi;
fi = NULL;
}
}
开发者ID:dmdware，项目名称:vec，代码行数:71，代码来源:t1afm.c
示例11: pfr_phy_font_load
pfr_phy_font_load( PFR_PhyFont phy_font,
FT_Stream stream,
FT_UInt32 offset,
FT_UInt32 size )
{
FT_Error error;
FT_Memory memory = stream->memory;
FT_UInt flags;
FT_ULong num_aux;
FT_Byte* p;
FT_Byte* limit;
phy_font->memory = memory;
phy_font->offset = offset;
phy_font->kern_items = NULL;
phy_font->kern_items_tail = &phy_font->kern_items;
if ( FT_STREAM_SEEK( offset ) ||
FT_FRAME_ENTER( size ) )
goto Exit;
phy_font->cursor = stream->cursor;
p = stream->cursor;
limit = p + size;
PFR_CHECK( 15 );
phy_font->font_ref_number = PFR_NEXT_USHORT( p );
phy_font->outline_resolution = PFR_NEXT_USHORT( p );
phy_font->metrics_resolution = PFR_NEXT_USHORT( p );
phy_font->bbox.xMin = PFR_NEXT_SHORT( p );
phy_font->bbox.yMin = PFR_NEXT_SHORT( p );
phy_font->bbox.xMax = PFR_NEXT_SHORT( p );
phy_font->bbox.yMax = PFR_NEXT_SHORT( p );
phy_font->flags = flags = PFR_NEXT_BYTE( p );
/* get the standard advance for non-proportional fonts */
if ( !(flags & PFR_PHY_PROPORTIONAL) )
{
PFR_CHECK( 2 );
phy_font->standard_advance = PFR_NEXT_SHORT( p );
}
/* load the extra items when present */
if ( flags & PFR_PHY_EXTRA_ITEMS )
{
error = pfr_extra_items_parse( &p, limit,
pfr_phy_font_extra_items, phy_font );
if ( error )
goto Fail;
}
/* In certain fonts, the auxiliary bytes contain interesting */
/* information. These are not in the specification but can be */
/* guessed by looking at the content of a few PFR0 fonts. */
PFR_CHECK( 3 );
num_aux = PFR_NEXT_ULONG( p );
if ( num_aux > 0 )
{
FT_Byte* q = p;
FT_Byte* q2;
PFR_CHECK_SIZE( num_aux );
p += num_aux;
while ( num_aux > 0 )
{
FT_UInt length, type;
if ( q + 4 > p )
break;
length = PFR_NEXT_USHORT( q );
if ( length < 4 || length > num_aux )
break;
q2 = q + length - 2;
type = PFR_NEXT_USHORT( q );
switch ( type )
{
case 1:
/* this seems to correspond to the font's family name, padded to */
/* an even number of bytes with a zero byte appended if needed */
error = pfr_aux_name_load( q, length - 4U, memory,
&phy_font->family_name );
if ( error )
goto Exit;
break;
case 2:
if ( q + 32 > q2 )
break;
//.........这里部分代码省略.........
开发者ID:ImageMagick，项目名称:ttf，代码行数:101，代码来源:pfrload.c
示例12: cff_encoding_load
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 = CFF_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 = CFF_Err_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 )
{
//.........这里部分代码省略.........
开发者ID:Ali-il，项目名称:gamekit，代码行数:101，代码来源:cffload.c
示例13: pfr_sort_kerning_pairs
static FT_Error
pfr_sort_kerning_pairs( FT_Stream stream,
PFR_PhyFont phy_font )
{
FT_Error error;
FT_Memory memory = stream->memory;
PFR_KernPair pairs;
PFR_KernItem item;
PFR_Char chars = phy_font->chars;
FT_UInt num_chars = phy_font->num_chars;
FT_UInt count;
/* create kerning pairs array
*/
if ( FT_NEW_ARRAY( phy_font->kern_pairs, phy_font->num_kern_pairs ) )
goto Exit;
/* load all kerning items into the array,
* converting character codes into glyph indices
*/
pairs = phy_font->kern_pairs;
item = phy_font->kern_items;
count = 0;
for ( ; item; item = item->next )
{
FT_UInt limit = count + item->pair_count;
FT_Byte* p;
if ( limit > phy_font->num_kern_pairs )
{
error = PFR_Err_Invalid_Table;
goto Exit;
}
if ( FT_STREAM_SEEK( item->offset ) ||
FT_FRAME_ENTER( item->pair_count * item->pair_size ) )
goto Exit;
p = stream->cursor;
for ( ; count < limit; count++ )
{
PFR_KernPair pair = pairs + count;
FT_UInt char1, char2;
FT_Int kerning;
if ( item->flags & PFR_KERN_2BYTE_CHAR )
{
char1 = FT_NEXT_USHORT( p );
char2 = FT_NEXT_USHORT( p );
}
else
{
char1 = FT_NEXT_BYTE( p );
char2 = FT_NEXT_BYTE( p );
}
if ( item->flags & PFR_KERN_2BYTE_ADJ )
kerning = item->base_adj + FT_NEXT_SHORT( p );
else
kerning = item->base_adj + FT_NEXT_CHAR( p );
pair->glyph1 = pfr_get_gindex( chars, num_chars, char1 );
pair->glyph2 = pfr_get_gindex( chars, num_chars, char2 );
pair->kerning = kerning;
}
FT_FRAME_EXIT();
}
/* sort the resulting array
*/
ft_qsort( pairs, count,
sizeof ( PFR_KernPairRec ),
pfr_compare_kern_pairs );
Exit:
if ( error )
{
/* disable kerning data in case of error
*/
phy_font->num_kern_pairs = 0;
}
return error;
}
开发者ID:Miguel-J，项目名称:eneboo-core，代码行数:90，代码来源:pfrload.c
示例14: cff_new_index
static FT_Error
cff_new_index( 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;
if ( !FT_READ_USHORT( count ) &&
count > 0 )
{
FT_Byte* p;
FT_Byte offsize;
FT_ULong data_size;
FT_ULong* poff;
/* 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;
idx->stream = stream;
idx->count = count;
idx->off_size = offsize;
data_size = (FT_ULong)( count + 1 ) * offsize;
if ( FT_NEW_ARRAY( idx->offsets, count + 1 ) ||
FT_FRAME_ENTER( data_size ) )
goto Exit;
poff = idx->offsets;
p = (FT_Byte*)stream->cursor;
for ( ; (FT_Short)count >= 0; count-- )
{
poff[0] = cff_get_offset( p, offsize );
poff++;
p += offsize;
}
FT_FRAME_EXIT();
idx->data_offset = FT_STREAM_POS();
data_size = poff[-1] - 1;
if ( load )
{
/* load the data */
if ( FT_FRAME_EXTRACT( data_size, idx->bytes ) )
goto Exit;
}
else
{
/* skip the data */
if ( FT_STREAM_SKIP( data_size ) )
goto Exit;
}
}
Exit:
if ( error )
FT_FREE( idx->offsets );
return error;
}
开发者ID:OS2World，项目名称:LIB-SDL，代码行数:71，代码来源:cffload.c
示例15: tt_face_load_font_dir
tt_face_load_font_dir( TT_Face face,
FT_Stream stream )
{
SFNT_HeaderRec sfnt;
FT_Error error;
FT_Memory memory = stream->memory;
TT_TableRec* entry;
FT_Int nn;
static const FT_Frame_Field offset_table_fields[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE SFNT_HeaderRec
FT_FRAME_START( 8 ),
FT_FRAME_USHORT( num_tables ),
FT_FRAME_USHORT( search_range ),
FT_FRAME_USHORT( entry_selector ),
FT_FRAME_USHORT( range_shift ),
FT_FRAME_END
};
FT_TRACE2(( "tt_face_load_font_dir: %08p\n", face ));
/* read the offset table */
sfnt.offset = FT_STREAM_POS();
if ( FT_READ_ULONG( sfnt.format_tag ) ||
FT_STREAM_READ_FIELDS( offset_table_fields, &sfnt ) )
goto Exit;
/* many fonts don't have these fields set correctly */
#if 0
if ( sfnt.search_range != 1 << ( sfnt.entry_selector + 4 ) ||
sfnt.search_range + sfnt.range_shift != sfnt.num_tables << 4 )
return FT_THROW( Unknown_File_Format );
#endif
/* load the table directory */
FT_TRACE2(( "-- Number of tables: %10u\n", sfnt.num_tables ));
FT_TRACE2(( "-- Format version: 0x%08lx\n", sfnt.format_tag ));
if ( sfnt.format_tag != TTAG_OTTO )
{
/* check first */
error = check_table_dir( &sfnt, stream );
if ( error )
{
FT_TRACE2(( "tt_face_load_font_dir:"
" invalid table directory for TrueType\n" ));
goto Exit;
}
}
face->num_tables = sfnt.num_tables;
face->format_tag = sfnt.format_tag;
if ( FT_QNEW_ARRAY( face->dir_tables, face->num_tables ) )
goto Exit;
if ( FT_STREAM_SEEK( sfnt.offset + 12 ) ||
FT_FRAME_ENTER( face->num_tables * 16L ) )
goto Exit;
entry = face->dir_tables;
FT_TRACE2(( "\n"
" tag offset length checksum\n"
" ----------------------------------\n" ));
for ( nn = 0; nn < sfnt.num_tables; nn++ )
{
entry->Tag = FT_GET_TAG4();
entry->CheckSum = FT_GET_ULONG();
entry->Offset = FT_GET_ULONG();
entry->Length = FT_GET_ULONG();
/* ignore invalid tables that can't be sanitized */
if ( entry->Offset > stream->size )
continue;
else if ( entry->Length > stream->size - entry->Offset )
{
if ( entry->Tag == TTAG_hmtx ||
entry->Tag == TTAG_vmtx )
{
#ifdef FT_DEBUG_LEVEL_TRACE
FT_ULong old_length = entry->Length;
#endif
/* make metrics table length a multiple of 4 */
entry->Length = ( stream->size - entry->Offset ) & ~3U;
FT_TRACE2(( " %c%c%c%c %08lx %08lx %08lx"
" (sanitized; original length %08lx)\n",
//.........这里部分代码省略.........
开发者ID:Blitzker，项目名称:assfilter，代码行数:101，代码来源:ttload.c
示例16: T1_Read_Metrics
T1_Read_Metrics( FT_Face t1_face,
FT_Stream stream )
{
PSAux_Service psaux;
FT_Memory memory = stream->memory;
AFM_ParserRec parser;
AFM_FontInfo fi;
FT_Error error = T1_Err_Unknown_File_Format;
T1_Font t1_font = &( (T1_Face)t1_face )->type1;
if ( FT_NEW( fi ) )
return error;
if ( FT_FRAME_ENTER( stream->size ) )
{
FT_FREE( fi );
return error;
}
fi->FontBBox = t1_font->font_bbox;
fi->Ascender = t1_font->font_bbox.yMax;
fi->Descender = t1_font->font_bbox.yMin;
psaux = (PSAux_Service)( (T1_Face)t1_face )->psaux;
if ( psaux && psaux->afm_parser_funcs )
{
error = psaux->afm_parser_funcs->init( &parser,
stream->memory,
stream->cursor,
stream->limit );
if ( !error )
{
parser.FontInfo = fi;
parser.get_index = t1_get_index;
parser.user_data = t1_font;
error = psaux->afm_parser_funcs->parse( &parser );
psaux->afm_parser_funcs->done( &parser );
}
}
if ( error == T1_Err_Unknown_File_Format )
{
FT_Byte* start = stream->cursor;
if ( stream->size > 6 &&
start[0] == 0x00 && start[1] == 0x01 &&
FT_PEEK_ULONG_LE( start + 2 ) == stream->size )
error = T1_Read_PFM( t1_face, stream, fi );
}
if ( !error )
{
t1_font->font_bbox = fi->FontBBox;
t1_face->bbox.xMin = fi->FontBBox.xMin >> 16;
t1_face->bbox.yMin = fi->FontBBox.yMin >> 16;
t1_face->bbox.xMax = ( fi->FontBBox.xMax + 0xFFFFU ) >> 16;
t1_face->bbox.yMax = ( fi->FontBBox.yMax + 0xFFFFU ) >> 16;
t1_face->ascender = (FT_Short)( ( fi->Ascender + 0x8000U ) >> 16 );
t1_face->descender = (FT_Short)( ( fi->Descender + 0x8000U ) >> 16 );
if ( fi->NumKernPair )
{
t1_face->face_flags |= FT_FACE_FLAG_KERNING;
( (T1_Face)t1_face )->afm_data = fi;
}
}
开发者ID:cdaffara，项目名称:symbiandump-os2，代码行数:72，代码来源:t1afm.c
示例17: cid_load_glyph
cid_load_glyph( T1_Decoder decoder,
FT_UInt glyph_index )
{
CID_Face face = (CID_Face)decoder->builder.face;
CID_FaceInfo cid = &face->cid;
FT_Byte* p;
FT_UInt fd_select;
FT_Stream stream = face->cid_stream;
FT_Error error = CID_Err_Ok;
FT_Byte* charstring = 0;
FT_Memory memory = face->root.memory;
FT_ULong glyph_length = 0;
PSAux_Service psaux = (PSAux_Service)face->psaux;
#ifdef FT_CONFIG_OPTION_INCREMENTAL
FT_Incremental_InterfaceRec *inc =
face->root.internal->incremental_interface;
#endif
FT_TRACE4(( "cid_load_glyph: glyph index %d\n", glyph_index ));
#ifdef FT_CONFIG_OPTION_INCREMENTAL
/* For incremental fonts get the character data using */
/* the callback function. */
if ( inc )
{
FT_Data glyph_data;
error = inc->funcs->get_glyph_data( inc->object,
glyph_index, &glyph_data );
if ( error )
goto Exit;
p = (FT_Byte*)glyph_data.pointer;
fd_select = (FT_UInt)cid_get_offset( &p, (FT_Byte)cid->fd_bytes );
if ( glyph_data.length != 0 )
{
glyph_length = glyph_data.length - cid->fd_bytes;
(void)FT_ALLOC( charstring, glyph_length );
if ( !error )
ft_memcpy( charstring, glyph_data.pointer + cid->fd_bytes,
glyph_length );
}
inc->funcs->free_glyph_data( inc->object, &glyph_data );
if ( error )
goto Exit;
}
else
#endif /* FT_CONFIG_OPTION_INCREMENTAL */
/* For ordinary fonts read the CID font dictionary index */
/* and charstring offset from the CIDMap. */
{
FT_UInt entry_len = cid->fd_bytes + cid->gd_bytes;
FT_ULong off1;
if ( FT_STREAM_SEEK( cid->data_offset + cid->cidmap_offset +
glyph_index * entry_len ) ||
FT_FRAME_ENTER( 2 * entry_len ) )
goto Exit;
p = (FT_Byte*)stream->cursor;
fd_select = (FT_UInt) cid_get_offset( &p, (FT_Byte)cid->fd_bytes );
off1 = (FT_ULong)cid_get_offset( &p, (FT_Byte)cid->gd_bytes );
p += cid->fd_bytes;
glyph_length = cid_get_offset( &p, (FT_Byte)cid->gd_bytes ) - off1;
FT_FRAME_EXIT();
if ( fd_select >= (FT_UInt)cid->num_dicts )
{
error = CID_Err_Invalid_Offset;
goto Exit;
}
if ( glyph_length == 0 )
goto Exit;
if ( FT_ALLOC( charstring, glyph_length ) )
goto Exit;
if ( FT_STREAM_READ_AT( cid->data_offset + off1,
charstring, glyph_length ) )
goto Exit;
}
/* Now set up the subrs array and parse the charstrings. */
{
CID_FaceDict dict;
CID_Subrs cid_subrs = face->subrs + fd_select;
FT_Int cs_offset;
/* Set up subrs */
decoder->num_subrs = cid_subrs->num_subrs;
//.........这里部分代码省略.........
开发者ID:0302zq，项目名称:libgdx，代码行数:101，代码来源:cidgload.c
示例18: CID_New_Parser
CID_New_Parser( CID_Parser* parser,
FT_Stream stream,
FT_Memory memory,
PSAux_Service psaux )
{
FT_Error error;
FT_ULong base_offset, offset, ps_len;
FT_Byte buffer[256 + 10];
FT_Int buff_len;
FT_MEM_SET( parser, 0, sizeof ( *parser ) );
psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory );
parser->stream = stream;
base_offset = FT_STREAM_POS();
/* first of all, check the font format in the header */
if ( FT_FRAME_ENTER( 31 ) )
goto Exit;
if ( ft_strncmp( (char *)stream->cursor,
"%!PS-Adobe-3.0 Resource-CIDFont", 31 ) )
{
FT_TRACE2(( "[not a valid CID-keyed font]\n" ));
error = CID_Err_Unknown_File_Format;
}
FT_FRAME_EXIT();
if ( error )
goto Exit;
/* now, read the rest of the file, until we find a `StartData' */
buff_len = 256;
for (;;)
{
FT_Byte *p, *limit = buffer + 256;
FT_ULong top_position;
/* fill input buffer */
buff_len -= 256;
if ( buff_len > 0 )
FT_MEM_MOVE( buffer, limit, buff_len );
p = buffer + buff_len;
if ( FT_STREAM_READ( p, 256 + 10 - buff_len ) )
goto Exit;
top_position = FT_STREAM_POS() - buff_len;
buff_len = 256 + 10;
/* look for `StartData' */
for ( p = buffer; p < limit; p++ )
{
if ( p[0] == 'S' && ft_strncmp( (char*)p, "StartData", 9 ) == 0 )
{
/* save offset of binary data after `StartData' */
offset = (FT_ULong)( top_position - ( limit - p ) + 10 );
goto Found;
}
}
}
Found:
/* we have found the start of the binary data. We will now */
/* rewind and extract the frame of corresponding to the Postscript */
/* section */
ps_len = offset - base_offset;
if ( FT_STREAM_SEEK( base_offset ) ||
FT_FRAME_EXTRACT( ps_len, parser->postscript ) )
goto Exit;
parser->data_offset = offset;
parser->postscript_len = ps_len;
parser->root.base = parser->postscript;
parser->root.cursor = parser->postscript;
parser->root.limit = parser->root.cursor + ps_len;
parser->num_dict = -1;
Exit:
return error;
}
开发者ID:SOLARIC，项目名称:world-opponent-network，代码行数:86，代码来源:cidparse.c
示例19: sfnt_open_font
/* synthesized into a TTC with one offset table. */
static FT_Error
sfnt_open_font(FT_Stream stream,
TT_Face face)
{
FT_Memory memory = stream->memory;
FT_Error error;
FT_ULong tag, offset;
static const FT_Frame_Field ttc_header_fields[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE TTC_HeaderRec
FT_FRAME_START(8),
FT_FRAME_LONG(version),
FT_FRAME_LONG(count),
FT_FRAME_END
};
face->ttc_header.tag = 0;
face->ttc_header.version = 0;
face->ttc_header.count = 0;
offset = FT_STREAM_POS();
if (FT_READ_ULONG(tag))
return error;
if (tag != 0x00010000UL &&
tag != TTAG_ttcf &&
tag != TTAG_OTTO &&
tag != TTAG_true &&
tag != TTAG_typ1 &&
tag != 0x00020000UL)
return SFNT_Err_Unknown_File_Format;
face->ttc_header.tag = TTAG_ttcf;
if (tag == TTAG_ttcf)
{
FT_Int n;
FT_TRACE3(("sfnt_open_font: file is a collection\n"));
if (FT_STREAM_READ_FIELDS(ttc_header_fields, &face->ttc_header))
return error;
/* now read the offsets of each font in the file */
if (FT_NEW_ARRAY(face->ttc_header.offsets, face->ttc_header.count))
return error;
if (FT_FRAME_ENTER(face->ttc_header.count * 4L))
return error;
for (n = 0; n < face->ttc_header.count
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