Module Description

Partial declarations for the TTF file format.

Note: TrueType data is big endian !
You need to use _byteswap_ushort & co. before using the data.

Groups
	Optional Tables
	Other optional TTF tables..

Classes
struct	TTFDirEntry

struct	TTFDirectory

struct	TTFNameRec

struct	TTFNames

Enumerations
enum	eTTTableId { TTT_CMAP = 0x70616D63, TTT_GLYF = 0x66796C67, TTT_HEAD = 0x64616568, TTT_HHEA = 0x61656868, TTT_HMTX = 0x78746D68, TTT_LOCA = 0x61636F6C, TTT_MAXP = 0x7078616D, TTT_NAME = 0x656D616E, TTT_POST = 0x74736F70, TTT_OS2 = 0x322F534F }

enum	eTTFPlatform { TTNP_APPLE, TTNP_MAC, TTNP_ISO, TTNP_MS }

enum	eMSEncoding { TTNE_MS_UNDEF, TTNE_MS_UGL }

enum	eNameTblIndex { TTNI_COPYRIGHT, TTNI_FAMILY, TTNI_SUBFAMILY, TTNI_FONTNAME, TTNI_FULLNAME, TTNI_VERSION, TTNI_POSTSCRIPT, TTNI_TRADEMARK }

Class Documentation

◆ TTFDirEntry

struct TTFDirEntry

TTF directory entry.

Definition at line 30 of file TTFFile.h.

Class Members
ULONG	Tag	FourCC identifier.
ULONG	Checksum	Checksum for this table.
ULONG	Offset	Offset from beginning of file.
ULONG	Length	Length of this table.

◆ TTFDirectory

struct TTFDirectory

TrueType Directory - At offset 0 in the TTF file..

Definition at line 94 of file TTFFile.h.

Class Members
FIXED	Version	16.16, 0x00010000 for version 1.0.
USHORT	NrTables	Nr of tables in this file.
USHORT	Range	(Maximum power of 2 <= NrTables) x 16.
USHORT	Selector	Log2(maximum power of 2 <= NrTables).
USHORT	Shift	NumTables x 16 - Range.
TTFDirEntry	Entry[10]	Minimum directory, per spec.

◆ TTFNameRec

struct TTFNameRec

An entry in the TTF name table..

Definition at line 116 of file TTFFile.h.

Class Members
USHORT	Platform	Platform ID.
USHORT	Encoding	Platform-specific encoding ID.
USHORT	Language	Language ID.
USHORT	Id	Name ID.
USHORT	Length	String length (in bytes).
USHORT	Offset	String offset from start of storage area (in bytes).

◆ TTFNames

struct TTFNames

TTF Names table..

Definition at line 163 of file TTFFile.h.

Class Members
USHORT	Format	Format selector (=0).
USHORT	NrNames	Number of NameRecords that follow n.
USHORT	Offset	Offset to start of string storage (from start of table).
TTFNameRec	Names[1]	(Variable) The NameRecords.

Enumeration Type Documentation

◆ eTTTableId

enum eTTTableId

Required Tables (TTT : TrueTypeTable).
Note: These table tags are defined as-is.

Enumerator
TTT_CMAP	'cmap' - Character to glyph mapping
TTT_GLYF	'glyf' - Glyph data
TTT_HEAD	'head' - Font header
TTT_HHEA	'hhea' - Horizontal header
TTT_HMTX	'hmtx' - Horizontal metrics
TTT_LOCA	'loca' - Index to location
TTT_MAXP	'maxp' - Maximum profile
TTT_NAME	'name' - Naming table
TTT_POST	'post' - PostScript information
TTT_OS2	'OS/2' - OS/2 and Windows specific metrics

Definition at line 44 of file TTFFile.h.

◆ eTTFPlatform

enum eTTFPlatform

TTF Platforms..

Enumerator
TTNP_APPLE	Apple Unicode, Specific encoding = none
TTNP_MAC	Macintosh, Specific encoding = Script manager code
TTNP_ISO	ISO, Specific encoding = ISO encoding
TTNP_MS	Microsoft, Specific encoding = Microsoft encoding

Definition at line 131 of file TTFFile.h.

◆ eMSEncoding

enum eMSEncoding

Microsoft platform-specific encoding IDs (platform ID = 3)

Enumerator
TTNE_MS_UNDEF	Undefined character set or indexing scheme.
TTNE_MS_UGL	UGL character set with Unicode indexing scheme.

Definition at line 141 of file TTFFile.h.

◆ eNameTblIndex

enum eNameTblIndex

Predefined Name Table IDs..

Enumerator
TTNI_COPYRIGHT	Copyright notice.
TTNI_FAMILY	Font Family name
TTNI_SUBFAMILY	Font Subfamily name; for purposes of definition, this is assumed to address style (italic, oblique) and weight (light, bold, black, etc.) only. A font with no particular differences in weight or style (e.g. medium weight, not italic and fsSelection bit 6 set) should have the string 'Regular' stored in this position.
TTNI_FONTNAME	Unique font identifier
TTNI_FULLNAME	Full font name; this should simply be a combination of strings 1 and 2. Exception: if string 2 is 'Regular', then use only string 1. This is the font name that Windows will expose to users.
TTNI_VERSION	Version string. In n.nn format.
TTNI_POSTSCRIPT	Postscript name for the font.
TTNI_TRADEMARK	Trademark; this is used to save any trademark notice/information for this font. Such information should be based on legal advice. This is distinctly separate from the copyright.

Definition at line 149 of file TTFFile.h.