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changed the SFNT driver slightly to add more robust

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checking based on the "search_rang", etc.., fields of
the sfnt header..

This avoids problems (like certain Type 1 multiple masters
incorrectly recognized as trueType files)..
This commit is contained in:
David Turner 2000-05-29 20:37:41 +00:00
parent 883df43fec
commit b1677a87ca
9 changed files with 156 additions and 365 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
demos/src/ftmulti.c
View File

@ -408,10 +408,10 @@ $\243^\250*\265\371%!\247:/;.,?<>";
grLn();
grWriteln(" F3 : decrement first axis position by 20" );
grWriteln(" F4 : increment first axis position by 20" );
grWriteln(" F3 : decrement second axis position by 20" );
grWriteln(" F4 : increment second axis position by 20" );
grWriteln(" F3 : decrement third axis position by 20" );
grWriteln(" F4 : increment third axis position by 20" );
grWriteln(" F5 : decrement second axis position by 20" );
grWriteln(" F6 : increment second axis position by 20" );
grWriteln(" F7 : decrement third axis position by 20" );
grWriteln(" F8 : increment third axis position by 20" );
grLn();
grWriteln("press any key to exit this help screen");

1
include/freetype/config/ftmodule.h
View File

@ -1,3 +1,4 @@
FT_DRIVER(cff_driver_interface)
FT_DRIVER(psnames_driver_interface)
FT_DRIVER(sfnt_driver_interface)
FT_DRIVER(tt_driver_interface)

86
include/freetype/internal/sfnt.h
View File

@ -116,19 +116,17 @@
/*************************************************************************/
/* */
/* <FuncType> */
/* TT_Load_Format_Tag */
/* TT_Load_SFNT_Header */
/* */
/* <Description> */
/* Loads the first 4 bytes of the font file. This is a tag that */
/* identifies the font format used. */
/* Loads the header of a SFNT font file. Supports collections.. */
/* */
/* <Input> */
/* face :: A handle to the target face object. */
/* stream :: The input stream. */
/* faceIndex :: The index of the TrueType font, if we're opening a */
/* collection. */
/* */
/* <Output> */
/* format_tag :: a 4-byte tag */
/* sfnt :: the sfnt header */
/* */
/* <Return> */
/* TrueType error code. 0 means success. */
@ -137,11 +135,14 @@
/* The stream cursor must be at the font file's origin */
/* This function recognizes fonts embedded in a "TrueType collection" */
/* */
/* This function checks that the header is valid by looking at the */
/* values of "search_range", "entry_selector" and "range_shift".. */
/* */
typedef
TT_Error (*TT_Load_Format_Tag_Func)( TT_Face face,
FT_Stream stream,
TT_Long faceIndex,
TT_ULong *format_tag );
TT_Error (*TT_Load_SFNT_Header_Func)( TT_Face face,
FT_Stream stream,
TT_Long faceIndex,
SFNT_Header* sfnt );
/*************************************************************************/
/* */
@ -154,8 +155,7 @@
/* <Input> */
/* face :: A handle to the target face object. */
/* stream :: The input stream. */
/* faceIndex :: The index of the TrueType font, if we're opening a */
/* collection. */
/* sfnt :: sfnt header */
/* */
/* <Return> */
/* TrueType error code. 0 means success. */
@ -166,9 +166,9 @@
/* TT_Load_Format_Tag */
/* */
typedef
TT_Error (*TT_Load_Directory_Func)( TT_Face face,
FT_Stream stream,
TT_Long faceIndex );
TT_Error (*TT_Load_Directory_Func)( TT_Face face,
FT_Stream stream,
SFNT_Header* sfnt );
/*************************************************************************/
@ -426,49 +426,49 @@
/* */
typedef struct SFNT_Interface_
{
TT_Goto_Table_Func goto_table;
TT_Goto_Table_Func goto_table;
TT_Init_Face_Func init_face;
TT_Load_Face_Func load_face;
TT_Done_Face_Func done_face;
SFNT_Get_Interface_Func get_interface;
TT_Init_Face_Func init_face;
TT_Load_Face_Func load_face;
TT_Done_Face_Func done_face;
SFNT_Get_Interface_Func get_interface;
TT_Load_Any_Func load_any;
TT_Load_Format_Tag_Func load_format_tag;
TT_Load_Directory_Func load_directory;
TT_Load_Any_Func load_any;
TT_Load_SFNT_Header_Func load_sfnt_header;
TT_Load_Directory_Func load_directory;
/* these functions are called by "load_face" but they can also */
/* be called from external modules, if there is a need to */
TT_Load_Table_Func load_header;
TT_Load_Metrics_Func load_metrics;
TT_Load_Table_Func load_charmaps;
TT_Load_Table_Func load_max_profile;
TT_Load_Table_Func load_os2;
TT_Load_Table_Func load_psnames;
TT_Load_Table_Func load_header;
TT_Load_Metrics_Func load_metrics;
TT_Load_Table_Func load_charmaps;
TT_Load_Table_Func load_max_profile;
TT_Load_Table_Func load_os2;
TT_Load_Table_Func load_psnames;
TT_Load_Table_Func load_names;
TT_Free_Table_Func free_names;
TT_Load_Table_Func load_names;
TT_Free_Table_Func free_names;
/* optional tables */
TT_Load_Table_Func load_hdmx;
TT_Free_Table_Func free_hdmx;
TT_Load_Table_Func load_hdmx;
TT_Free_Table_Func free_hdmx;
TT_Load_Table_Func load_kerning;
TT_Load_Table_Func load_gasp;
TT_Load_Table_Func load_pclt;
TT_Load_Table_Func load_kerning;
TT_Load_Table_Func load_gasp;
TT_Load_Table_Func load_pclt;
/* see `ttsbit.h' */
TT_Load_Table_Func load_sbits;
TT_Load_SBit_Image_Func load_sbit_image;
TT_Free_Table_Func free_sbits;
TT_Load_Table_Func load_sbits;
TT_Load_SBit_Image_Func load_sbit_image;
TT_Free_Table_Func free_sbits;
/* see `ttpost.h' */
TT_Get_PS_Name_Func get_psname;
TT_Free_Table_Func free_psnames;
TT_Get_PS_Name_Func get_psname;
TT_Free_Table_Func free_psnames;
/* see `ttcmap.h' */
TT_CharMap_Load_Func load_charmap;
TT_CharMap_Free_Func free_charmap;
TT_CharMap_Load_Func load_charmap;
TT_CharMap_Free_Func free_charmap;
} SFNT_Interface;

25
include/freetype/internal/tttypes.h
View File

@ -366,6 +366,31 @@
} TTC_Header;
/*************************************************************************/
/* */
/* <Struct> */
/* SFNT_Header */
/* */
/* <Description> */
/* SFNT file format header. */
/* */
/* <Fields> */
/* format_tag :: font format tag.. */
/* num_tables :: number of tables in file */
/* search_range :: must be 16*(max power of 2 <= num_tables) */
/* entry_selector :: log2 of search_range/16 */
/* range_shift :: must be num_tables*16 - search_range */
/* */
typedef struct SFNT_Header_
{
TT_ULong format_tag;
TT_UShort num_tables;
TT_UShort search_range;
TT_UShort entry_selector;
TT_UShort range_shift;
} SFNT_Header;
/*************************************************************************/
/* */
/* <Struct> */

2
src/sfnt/sfdriver.c
View File

@ -52,7 +52,7 @@
SFNT_Get_Interface,
TT_Load_Any,
TT_Load_Format_Tag,
TT_Load_SFNT_Header,
TT_Load_Directory,
TT_Load_Header,

9
src/sfnt/sfobjs.c
View File

@ -145,6 +145,7 @@
FT_Error error;
SFNT_Interface* sfnt;
PSNames_Interface* psnames;
SFNT_Header sfnt_header;
/* for now, parameters are unused */
UNUSED(num_params);
@ -187,12 +188,14 @@
}
/* check that we have a valid TrueType file */
error = sfnt->load_format_tag( face, stream, face_index,
&face->format_tag );
error = sfnt->load_sfnt_header( face, stream, face_index, &sfnt_header );
if (error) goto Exit;
face->format_tag = sfnt_header.format_tag;
face->num_tables = sfnt_header.num_tables;
/* Load font directory */
error = sfnt->load_directory( face, stream, face_index );
error = sfnt->load_directory( face, stream, &sfnt_header );
if ( error ) goto Exit;
face->root.num_faces = face->ttc_header.DirCount;

2
src/sfnt/ttcmap.c
View File

@ -451,7 +451,7 @@
/* the ranges are sorted in increasing order, if we're out of */
/* the range here, the char code isn't in the charmap, so exit */
if ( charCode > seg4->endCount )
break;
continue;
if ( charCode >= seg4->startCount )
goto Found;

372
src/sfnt/ttload.c
View File

@ -118,19 +118,17 @@
/*************************************************************************/
/* */
/* <FuncType> */
/* TT_Load_Format_Tag */
/* TT_Load_SFNT_Header */
/* */
/* <Description> */
/* Loads the first 4 bytes of the font file. This is a tag that */
/* identifies the font format used. */
/* Loads the header of a SFNT font file. Supports collections.. */
/* */
/* <Input> */
/* face :: A handle to the target face object. */
/* stream :: The input stream. */
/* faceIndex :: The index of the TrueType font, if we're opening a */
/* collection. */
/* */
/* <Output> */
/* format_tag :: a 4-byte font format tag */
/* sfnt :: the sfnt header */
/* */
/* <Return> */
/* TrueType error code. 0 means success. */
@ -139,24 +137,34 @@
/* The stream cursor must be at the font file's origin */
/* This function recognizes fonts embedded in a "TrueType collection" */
/* */
/* This function checks that the header is valid by looking at the */
/* values of "search_range", "entry_selector" and "range_shift".. */
/* */
LOCAL_FUNC
TT_Error TT_Load_Format_Tag( TT_Face face,
FT_Stream stream,
TT_Long faceIndex,
TT_ULong *format_tag )
TT_Error TT_Load_SFNT_Header( TT_Face face,
FT_Stream stream,
TT_Long face_index,
SFNT_Header* sfnt )
{
TT_Error error;
FT_Memory memory = stream->memory;
#ifdef READ_FIELDS
TT_Error error;
TT_ULong format_tag;
FT_Memory memory = stream->memory;
const FT_Frame_Field sfnt_header_fields[] = {
FT_FRAME_START(8),
FT_FRAME_USHORT( SFNT_Header, num_tables ),
FT_FRAME_USHORT( SFNT_Header, search_range ),
FT_FRAME_USHORT( SFNT_Header, entry_selector ),
FT_FRAME_USHORT( SFNT_Header, range_shift ),
FT_FRAME_END };
const FT_Frame_Field ttc_header_fields[] = {
FT_FRAME_START(8), /* frame of 8 bytes */
FT_FRAME_LONG( TTC_Header, version ),
FT_FRAME_LONG( TTC_Header, DirCount ),
FT_FRAME_END };
#endif
FT_TRACE2(( "TT_Load_Format_Tag(%08p, %ld )\n",
FT_TRACE2(( "TT_Load_SFNT_Header(%08p, %ld )\n",
face, faceIndex ));
face->ttc_header.Tag = 0;
@ -168,28 +176,19 @@
/* first of all, read the first 4 bytes. If it's `ttcf', then the */
/* file is a TrueType collection, otherwise it can be any other */
/* kind of font.. */
if ( READ_ULong(*format_tag) ) goto Exit;
if ( READ_ULong(format_tag) ) goto Exit;
if ( *format_tag == TTAG_ttcf )
if ( format_tag == TTAG_ttcf )
{
TT_Int n;
FT_TRACE4(( "TT_Load_Format_Tag: file is a collection\n" ));
FT_TRACE4(( "TT_Load_SFNT_Header: file is a collection\n" ));
/* it's a TrueType collection, i.e. a file containing several */
/* font files. Read the font directory now */
/* */
#ifdef READ_FIELDS
if ( READ_Fields( ttc_header_fields, &face->ttc_header ) )
goto Exit;
#else
if ( ACCESS_Frame( 8 ) ) goto Exit;
face->ttc_header.version = GET_Long();
face->ttc_header.DirCount = GET_Long();
FORGET_Frame();
#endif
/* now read the offsets of each font in the file */
/* */
@ -205,25 +204,42 @@
FORGET_Frame();
/* check face index */
if (faceIndex >= face->ttc_header.DirCount)
if (face_index >= face->ttc_header.DirCount)
{
error = TT_Err_Bad_Argument;
goto Exit;
}
/* if we're checking the font format, exit immediately */
if (faceIndex < 0)
goto Exit;
/* seek to the appropriate TrueType file, then read tag */
if ( FILE_Seek( face->ttc_header.TableDirectory[faceIndex] ) ||
READ_Long( *format_tag ) )
if ( FILE_Seek( face->ttc_header.TableDirectory[face_index] ) ||
READ_Long( format_tag ) )
goto Exit;
}
/* the format tag was read, now check the rest of the header */
sfnt->format_tag = format_tag;
if ( READ_Fields( sfnt_header_fields, sfnt ) )
goto Exit;
/* now, check the values of "num_tables", "seach_range", etc.. */
{
TT_UInt num_tables = sfnt->num_tables;
TT_UInt search_range = sfnt->search_range;
TT_ULong entry_selector = 1L << sfnt->entry_selector;
if ( entry_selector > num_tables || entry_selector*2 <= num_tables ||
search_range != 16*entry_selector ||
num_tables*16 != search_range + sfnt->range_shift )
{
FT_TRACE2(( "TT_Load_SFNT_Header: file is not SFNT !\n" ));
error = FT_Err_Unknown_File_Format;
}
}
Exit:
return error;
}
}
/*************************************************************************/
@ -237,8 +253,7 @@
/* <Input> */
/* face :: A handle to the target face object. */
/* stream :: The input stream. */
/* faceIndex :: The index of the TrueType font, if we're opening a */
/* collection. */
/* sfnt :: sfnt directory header */
/* */
/* <Return> */
/* TrueType error code. 0 means success. */
@ -247,49 +262,22 @@
/* The stream cursor must be at the font file's origin */
/* */
LOCAL_FUNC
TT_Error TT_Load_Directory( TT_Face face,
FT_Stream stream,
TT_Long faceIndex )
TT_Error TT_Load_Directory( TT_Face face,
FT_Stream stream,
SFNT_Header* sfnt )
{
TT_Error error;
FT_Memory memory = stream->memory;
#ifdef READ_FIELDS
const FT_Frame_Field table_dir_fields[] = {
FT_FRAME_START(8),
FT_FRAME_USHORT( TT_TableDir, numTables ),
FT_FRAME_USHORT( TT_TableDir, searchRange ),
FT_FRAME_USHORT( TT_TableDir, entrySelector ),
FT_FRAME_USHORT( TT_TableDir, rangeShift ),
FT_FRAME_END };
#endif
TT_TableDir tableDir;
TT_Table *entry, *limit;
UNUSED(faceIndex);
FT_TRACE2(( "TT_Load_Directory( %08p, %ld )\n",
face, faceIndex ));
#ifdef READ_FIELDS
if ( READ_Fields( table_dir_fields, &tableDir ) )
goto Exit;
#else
if ( ACCESS_Frame( 8L ) ) goto Exit;
FT_TRACE2(( "-- Tables count : %12u\n", sfnt->num_tables ));
FT_TRACE2(( "-- Format version : %08lx\n", sfnt->format_tag ));
tableDir.numTables = GET_UShort();
tableDir.searchRange = GET_UShort();
tableDir.entrySelector = GET_UShort();
tableDir.rangeShift = GET_UShort();
FORGET_Frame();
#endif
FT_TRACE2(( "-- Tables count : %12u\n", tableDir.numTables ));
FT_TRACE2(( "-- Format version : %08lx\n", tableDir.version ));
face->num_tables = tableDir.numTables;
face->num_tables = sfnt->num_tables;
if ( ALLOC_ARRAY( face->dir_tables,
face->num_tables,
@ -437,7 +425,7 @@
{
TT_Error error;
TT_Header* header;
#ifdef READ_FIELDS
static const FT_Frame_Field header_fields[] = {
FT_FRAME_START(54),
FT_FRAME_ULONG( TT_Header, Table_Version ),
@ -460,7 +448,6 @@
FT_FRAME_SHORT( TT_Header, Index_To_Loc_Format ),
FT_FRAME_SHORT( TT_Header, Glyph_Data_Format ),
FT_FRAME_END };
#endif
FT_TRACE2(( "Load_TT_Header( %08p )\n", face ));
@ -473,40 +460,9 @@
header = &face->header;
#ifdef READ_FIELDS
if ( READ_Fields( header_fields, header ) ) goto Exit;
#else
if ( ACCESS_Frame( 54L ) )
if ( READ_Fields( header_fields, header ) )
goto Exit;
header->Table_Version = GET_ULong();
header->Font_Revision = GET_ULong();
header->CheckSum_Adjust = GET_Long();
header->Magic_Number = GET_Long();
header->Flags = GET_UShort();
header->Units_Per_EM = GET_UShort();
header->Created [0] = GET_Long();
header->Created [1] = GET_Long();
header->Modified[0] = GET_Long();
header->Modified[1] = GET_Long();
header->xMin = GET_Short();
header->yMin = GET_Short();
header->xMax = GET_Short();
header->yMax = GET_Short();
header->Mac_Style = GET_UShort();
header->Lowest_Rec_PPEM = GET_UShort();
header->Font_Direction = GET_Short();
header->Index_To_Loc_Format = GET_Short();
header->Glyph_Data_Format = GET_Short();
FORGET_Frame();
#endif
FT_TRACE2(( " Units per EM : %8u\n", header->Units_Per_EM ));
FT_TRACE2(( " IndexToLoc : %8d\n", header->Index_To_Loc_Format ));
FT_TRACE2(( "Font Header Loaded.\n" ));
@ -537,7 +493,7 @@
{
TT_Error error;
TT_MaxProfile* maxProfile = &face->max_profile;
#ifdef READ_FIELDS
const FT_Frame_Field maxp_fields[] = {
FT_FRAME_START(32),
FT_FRAME_ULONG( TT_MaxProfile, version ),
@ -556,41 +512,13 @@
FT_FRAME_USHORT( TT_MaxProfile, maxComponentElements ),
FT_FRAME_USHORT( TT_MaxProfile, maxComponentDepth ),
FT_FRAME_END };
#endif
FT_TRACE2(( "Load_TT_MaxProfile( %08p )\n", face ));
error = face->goto_table( face, TTAG_maxp, stream, 0 );
if (error) goto Exit;
#ifdef READ_FIELDS
if ( READ_Fields( maxp_fields, maxProfile ) ) goto Exit;
#else
if ( ACCESS_Frame( 32L ) )
goto Exit;
/* read frame data into face table */
maxProfile->version = GET_ULong();
maxProfile->numGlyphs = GET_UShort();
maxProfile->maxPoints = GET_UShort();
maxProfile->maxContours = GET_UShort();
maxProfile->maxCompositePoints = GET_UShort();
maxProfile->maxCompositeContours = GET_UShort();
maxProfile->maxZones = GET_UShort();
maxProfile->maxTwilightPoints = GET_UShort();
maxProfile->maxStorage = GET_UShort();
maxProfile->maxFunctionDefs = GET_UShort();
maxProfile->maxInstructionDefs = GET_UShort();
maxProfile->maxStackElements = GET_UShort();
maxProfile->maxSizeOfInstructions = GET_UShort();
maxProfile->maxComponentElements = GET_UShort();
maxProfile->maxComponentDepth = GET_UShort();
FORGET_Frame();
#endif
/* XXX: an adjustment that is necessary to load certain */
/* broken fonts like `Keystrokes MT' :-( */
@ -783,7 +711,7 @@
{
TT_Error error;
TT_HoriHeader* header;
#ifdef READ_FIELDS
const FT_Frame_Field metrics_header_fields[] = {
FT_FRAME_START(36),
FT_FRAME_ULONG( TT_HoriHeader, Version ),
@ -804,7 +732,7 @@
FT_FRAME_SHORT( TT_HoriHeader, metric_Data_Format ),
FT_FRAME_USHORT( TT_HoriHeader, number_Of_HMetrics ),
FT_FRAME_END };
#endif
FT_TRACE2(( vertical ? "Vertical header " : "Horizontal header " ));
if ( vertical )
@ -837,37 +765,7 @@
header = &face->horizontal;
}
#ifdef READ_FIELDS
if ( READ_Fields( metrics_header_fields, header ) ) goto Exit;
#else
if ( ACCESS_Frame( 36L ) )
goto Exit;
header->Version = GET_ULong();
header->Ascender = GET_Short();
header->Descender = GET_Short();
header->Line_Gap = GET_Short();
header->advance_Width_Max = GET_UShort();
header->min_Left_Side_Bearing = GET_Short();
header->min_Right_Side_Bearing = GET_Short();
header->xMax_Extent = GET_Short();
header->caret_Slope_Rise = GET_Short();
header->caret_Slope_Run = GET_Short();
header->Reserved[0] = GET_Short(); /* this is caret_Offset for
vertical headers */
header->Reserved[1] = GET_Short();
header->Reserved[2] = GET_Short();
header->Reserved[3] = GET_Short();
header->Reserved[4] = GET_Short();
header->metric_Data_Format = GET_Short();
header->number_Of_HMetrics = GET_UShort();
FORGET_Frame();
#endif
header->long_metrics = NULL;
header->short_metrics = NULL;
@ -907,7 +805,7 @@
TT_ULong storageSize;
TT_NameTable* names;
#ifdef READ_FIELDS
const FT_Frame_Field name_table_fields[] = {
FT_FRAME_START(6),
FT_FRAME_USHORT( TT_NameTable, format ),
@ -923,7 +821,6 @@
FT_FRAME_USHORT( TT_NameRec, stringLength ),
FT_FRAME_USHORT( TT_NameRec, stringOffset ),
FT_FRAME_END };
#endif
FT_TRACE2(( "Names " ));
@ -941,19 +838,7 @@
names = &face->name_table;
#ifdef READ_FIELDS
if ( READ_Fields( name_table_fields, names ) ) goto Exit;
#else
if ( ACCESS_Frame( 6L ) )
goto Exit;
/* Load the initial names data. */
names->format = GET_UShort();
names->numNameRecords = GET_UShort();
names->storageOffset = GET_UShort();
FORGET_Frame();
#endif
/* Allocate the array of name records. */
if ( ALLOC_ARRAY( names->names,
@ -974,16 +859,8 @@
{
TT_ULong upper;
#ifdef READ_FIELDS
(void)READ_Fields( name_record_fields, cur );
#else
cur->platformID = GET_UShort();
cur->encodingID = GET_UShort();
cur->languageID = GET_UShort();
cur->nameID = GET_UShort();
cur->stringLength = GET_UShort();
cur->stringOffset = GET_UShort();
#endif
upper = (TT_ULong)(cur->stringOffset + cur->stringLength);
if ( upper > storageSize ) storageSize = upper;
}
@ -1101,7 +978,6 @@
TT_Long table_start;
TT_CMapDir cmap_dir;
#ifdef READ_FIELDS
const FT_Frame_Field cmap_fields[] = {
FT_FRAME_START(4),
FT_FRAME_USHORT( TT_CMapDir, tableVersionNumber ),
@ -1114,7 +990,6 @@
FT_FRAME_USHORT( TT_CMapTable, length ),
FT_FRAME_USHORT( TT_CMapTable, version ),
FT_FRAME_END };
#endif
FT_TRACE2(( "CMaps " ));
@ -1127,17 +1002,7 @@
table_start = FILE_Pos();
#ifdef READ_FIELDS
if ( READ_Fields( cmap_fields, &cmap_dir ) ) goto Exit;
#else
if ( ACCESS_Frame( 4L ) ) /* 4 bytes cmap header */
goto Exit;
cmap_dir.tableVersionNumber = GET_UShort();
cmap_dir.numCMaps = GET_UShort();
FORGET_Frame();
#endif
/* save space in face table for cmap tables */
if ( ALLOC_ARRAY( face->charmaps,
@ -1171,21 +1036,10 @@
{
TT_CMapTable* cmap = &charmap->cmap;
#ifdef READ_FIELDS
if ( FILE_Seek( table_start + (TT_Long)cmap->offset ) ||
READ_Fields( cmap_rec_fields, cmap ) )
goto Exit;
#else
if ( FILE_Seek( table_start + (TT_Long)cmap->offset ) ||
ACCESS_Frame(6L) )
goto Exit;
cmap->format = GET_UShort();
cmap->length = GET_UShort();
cmap->version = GET_UShort();
FORGET_Frame();
#endif
cmap->offset = FILE_Pos();
}
}
@ -1217,7 +1071,7 @@
{
TT_Error error;
TT_OS2* os2;
#ifdef READ_FIELDS
const FT_Frame_Field os2_fields[] = {
FT_FRAME_START(78),
FT_FRAME_USHORT( TT_OS2, version ),
@ -1279,10 +1133,6 @@
FT_FRAME_USHORT( TT_OS2, usBreakChar ),
FT_FRAME_USHORT( TT_OS2, usMaxContext ),
FT_FRAME_END };
#else
TT_Int j;
#endif
FT_TRACE2(( "OS/2 Table " ));
@ -1300,51 +1150,7 @@
os2 = &face->os2;
#ifdef READ_FIELDS
if ( READ_Fields( os2_fields, os2 ) ) goto Exit;
#else
if ( ACCESS_Frame( 78L ) )
goto Exit;
os2->version = GET_UShort();
os2->xAvgCharWidth = GET_Short();
os2->usWeightClass = GET_UShort();
os2->usWidthClass = GET_UShort();
os2->fsType = GET_Short();
os2->ySubscriptXSize = GET_Short();
os2->ySubscriptYSize = GET_Short();
os2->ySubscriptXOffset = GET_Short();
os2->ySubscriptYOffset = GET_Short();
os2->ySuperscriptXSize = GET_Short();
os2->ySuperscriptYSize = GET_Short();
os2->ySuperscriptXOffset = GET_Short();
os2->ySuperscriptYOffset = GET_Short();
os2->yStrikeoutSize = GET_Short();
os2->yStrikeoutPosition = GET_Short();
os2->sFamilyClass = GET_Short();
for ( j = 0; j < 10; j++ )
os2->panose[j] = GET_Byte();
os2->ulUnicodeRange1 = GET_ULong();
os2->ulUnicodeRange2 = GET_ULong();
os2->ulUnicodeRange3 = GET_ULong();
os2->ulUnicodeRange4 = GET_ULong();
for ( j = 0; j < 4; j++ )
os2->achVendID[j] = GET_Byte();
os2->fsSelection = GET_UShort();
os2->usFirstCharIndex = GET_UShort();
os2->usLastCharIndex = GET_UShort();
os2->sTypoAscender = GET_Short();
os2->sTypoDescender = GET_Short();
os2->sTypoLineGap = GET_Short();
os2->usWinAscent = GET_UShort();
os2->usWinDescent = GET_UShort();
FORGET_Frame();
#endif
os2->ulCodePageRange1 = 0;
os2->ulCodePageRange2 = 0;
@ -1352,35 +1158,12 @@
if ( os2->version >= 0x0001 )
{
/* only version 1 tables */
#ifdef READ_FIELDS
if ( READ_Fields( os2_fields_extra, os2 ) ) goto Exit;
#else
if ( ACCESS_Frame( 8L ) ) /* read into frame */
goto Exit;
os2->ulCodePageRange1 = GET_ULong();
os2->ulCodePageRange2 = GET_ULong();
FORGET_Frame();
#endif
if ( os2->version >= 0x0002 )
{
/* only version 2 tables */
#ifdef READ_FIELDS
if ( READ_Fields( os2_fields_extra2, os2 ) ) goto Exit;
#else
if ( ACCESS_Frame( 10L ) ) /* read into frame */
goto Exit;
os2->sxHeight = GET_Short();
os2->sCapHeight = GET_Short();
os2->usDefaultChar = GET_UShort();
os2->usBreakChar = GET_UShort();
os2->usMaxContext = GET_UShort();
FORGET_Frame();
#endif
}
}
@ -1412,7 +1195,7 @@
{
TT_Error error;
TT_Postscript* post = &face->postscript;
#ifdef READ_FIELDS
static const FT_Frame_Field post_fields[] = {
FT_FRAME_START(32),
FT_FRAME_ULONG( TT_Postscript, FormatType ),
@ -1425,7 +1208,6 @@
FT_FRAME_ULONG( TT_Postscript, minMemType1 ),
FT_FRAME_ULONG( TT_Postscript, maxMemType1 ),
FT_FRAME_END };
#endif
FT_TRACE2(( "PostScript " ));
@ -1433,26 +1215,8 @@
if (error)
return TT_Err_Post_Table_Missing;
#ifdef READ_FIELDS
if ( READ_Fields( post_fields, post ) ) return error;
#else
if ( ACCESS_Frame( 32L ) )
return error;
/* read frame data into face table */
post->FormatType = GET_ULong();
post->italicAngle = GET_ULong();
post->underlinePosition = GET_Short();
post->underlineThickness = GET_Short();
post->isFixedPitch = GET_ULong();
post->minMemType42 = GET_ULong();
post->maxMemType42 = GET_ULong();
post->minMemType1 = GET_ULong();
post->maxMemType1 = GET_ULong();
FORGET_Frame();
#endif
/* we don't load the glyph names, we do that in another */
/* module (ttpost). */
FT_TRACE2(( "loaded\n" ));

16
src/sfnt/ttload.h
View File

@ -44,16 +44,14 @@
LOCAL_DEF
TT_Error TT_Load_Format_Tag( TT_Face face,
FT_Stream stream,
TT_Long faceIndex,
TT_ULong *format_tag );
TT_Error TT_Load_SFNT_Header( TT_Face face,
FT_Stream stream,
TT_Long face_index,
SFNT_Header* sfnt );
LOCAL_DEF
TT_Error TT_Load_Directory( TT_Face face,
FT_Stream stream,
TT_Long faceIndex );
TT_Error TT_Load_Directory( TT_Face face,
FT_Stream stream,
SFNT_Header* sfnt );
LOCAL_DEF
TT_Error TT_Load_Any( TT_Face face,