1544 lines
84 KiB
C
1544 lines
84 KiB
C
/***************************************************************************/
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/* */
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/* tttypes.h */
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/* */
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/* Basic SFNT/TrueType type definitions and interface (specification */
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/* only). */
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/* */
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/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007, 2008 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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#ifndef __TTTYPES_H__
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#define __TTTYPES_H__
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#include <ft2build.h>
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#include FT_TRUETYPE_TABLES_H
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#include FT_INTERNAL_OBJECTS_H
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#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
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#include FT_MULTIPLE_MASTERS_H
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#endif
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FT_BEGIN_HEADER
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/*** ***/
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/*** ***/
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/*** REQUIRED TRUETYPE/OPENTYPE TABLES DEFINITIONS ***/
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/*** ***/
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/*** ***/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TTC_HeaderRec */
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/* */
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/* <Description> */
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/* TrueType collection header. This table contains the offsets of */
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/* the font headers of each distinct TrueType face in the file. */
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/* */
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/* <Fields> */
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/* tag :: Must be `ttc ' to indicate a TrueType collection. */
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/* */
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/* version :: The version number. */
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/* */
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/* count :: The number of faces in the collection. The */
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/* specification says this should be an unsigned long, but */
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/* we use a signed long since we need the value -1 for */
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/* specific purposes. */
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/* */
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/* offsets :: The offsets of the font headers, one per face. */
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/* */
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typedef struct TTC_HeaderRec_
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{
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FT_ULong tag;
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FT_Fixed version;
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FT_Long count;
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FT_ULong* offsets;
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} TTC_HeaderRec;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* SFNT_HeaderRec */
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/* */
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/* <Description> */
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/* SFNT file format header. */
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/* */
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/* <Fields> */
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/* format_tag :: The font format tag. */
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/* */
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/* num_tables :: The number of tables in file. */
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/* */
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/* search_range :: Must be `16 * (max power of 2 <= num_tables)'. */
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/* */
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/* entry_selector :: Must be log2 of `search_range / 16'. */
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/* */
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/* range_shift :: Must be `num_tables * 16 - search_range'. */
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/* */
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typedef struct SFNT_HeaderRec_
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{
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FT_ULong format_tag;
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FT_UShort num_tables;
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FT_UShort search_range;
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FT_UShort entry_selector;
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FT_UShort range_shift;
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FT_ULong offset; /* not in file */
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} SFNT_HeaderRec, *SFNT_Header;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_TableRec */
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/* */
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/* <Description> */
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/* This structure describes a given table of a TrueType font. */
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/* */
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/* <Fields> */
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/* Tag :: A four-bytes tag describing the table. */
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/* */
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/* CheckSum :: The table checksum. This value can be ignored. */
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/* */
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/* Offset :: The offset of the table from the start of the TrueType */
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/* font in its resource. */
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/* */
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/* Length :: The table length (in bytes). */
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/* */
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typedef struct TT_TableRec_
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{
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FT_ULong Tag; /* table type */
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FT_ULong CheckSum; /* table checksum */
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FT_ULong Offset; /* table file offset */
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FT_ULong Length; /* table length */
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} TT_TableRec, *TT_Table;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_LongMetricsRec */
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/* */
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/* <Description> */
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/* A structure modeling the long metrics of the `hmtx' and `vmtx' */
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/* TrueType tables. The values are expressed in font units. */
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/* */
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/* <Fields> */
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/* advance :: The advance width or height for the glyph. */
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/* */
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/* bearing :: The left-side or top-side bearing for the glyph. */
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/* */
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typedef struct TT_LongMetricsRec_
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{
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FT_UShort advance;
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FT_Short bearing;
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} TT_LongMetricsRec, *TT_LongMetrics;
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/*************************************************************************/
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/* */
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/* <Type> */
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/* TT_ShortMetrics */
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/* */
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/* <Description> */
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/* A simple type to model the short metrics of the `hmtx' and `vmtx' */
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/* tables. */
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/* */
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typedef FT_Short TT_ShortMetrics;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_NameEntryRec */
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/* */
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/* <Description> */
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/* A structure modeling TrueType name records. Name records are used */
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/* to store important strings like family name, style name, */
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/* copyright, etc. in _localized_ versions (i.e., language, encoding, */
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/* etc). */
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/* */
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/* <Fields> */
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/* platformID :: The ID of the name's encoding platform. */
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/* */
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/* encodingID :: The platform-specific ID for the name's encoding. */
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/* */
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/* languageID :: The platform-specific ID for the name's language. */
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/* */
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/* nameID :: The ID specifying what kind of name this is. */
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/* */
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/* stringLength :: The length of the string in bytes. */
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/* */
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/* stringOffset :: The offset to the string in the `name' table. */
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/* */
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/* string :: A pointer to the string's bytes. Note that these */
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/* are usually UTF-16 encoded characters. */
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/* */
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typedef struct TT_NameEntryRec_
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{
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FT_UShort platformID;
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FT_UShort encodingID;
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FT_UShort languageID;
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FT_UShort nameID;
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FT_UShort stringLength;
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FT_ULong stringOffset;
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/* this last field is not defined in the spec */
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/* but used by the FreeType engine */
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FT_Byte* string;
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} TT_NameEntryRec, *TT_NameEntry;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_NameTableRec */
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/* */
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/* <Description> */
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/* A structure modeling the TrueType name table. */
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/* */
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/* <Fields> */
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/* format :: The format of the name table. */
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/* */
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/* numNameRecords :: The number of names in table. */
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/* */
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/* storageOffset :: The offset of the name table in the `name' */
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/* TrueType table. */
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/* */
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/* names :: An array of name records. */
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/* */
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/* stream :: the file's input stream. */
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/* */
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typedef struct TT_NameTableRec_
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{
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FT_UShort format;
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FT_UInt numNameRecords;
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FT_UInt storageOffset;
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TT_NameEntryRec* names;
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FT_Stream stream;
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} TT_NameTableRec, *TT_NameTable;
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/*** ***/
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/*** ***/
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/*** OPTIONAL TRUETYPE/OPENTYPE TABLES DEFINITIONS ***/
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/*** ***/
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/*** ***/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_GaspRangeRec */
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/* */
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/* <Description> */
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/* A tiny structure used to model a gasp range according to the */
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/* TrueType specification. */
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/* */
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/* <Fields> */
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/* maxPPEM :: The maximum ppem value to which `gaspFlag' applies. */
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/* */
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/* gaspFlag :: A flag describing the grid-fitting and anti-aliasing */
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/* modes to be used. */
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/* */
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typedef struct TT_GaspRangeRec_
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{
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FT_UShort maxPPEM;
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FT_UShort gaspFlag;
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} TT_GaspRangeRec, *TT_GaspRange;
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#define TT_GASP_GRIDFIT 0x01
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#define TT_GASP_DOGRAY 0x02
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_GaspRec */
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/* */
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/* <Description> */
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/* A structure modeling the TrueType `gasp' table used to specify */
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/* grid-fitting and anti-aliasing behaviour. */
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/* */
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/* <Fields> */
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/* version :: The version number. */
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/* */
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/* numRanges :: The number of gasp ranges in table. */
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/* */
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/* gaspRanges :: An array of gasp ranges. */
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/* */
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typedef struct TT_Gasp_
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{
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FT_UShort version;
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FT_UShort numRanges;
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TT_GaspRange gaspRanges;
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} TT_GaspRec;
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#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_HdmxEntryRec */
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/* */
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/* <Description> */
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/* A small structure used to model the pre-computed widths of a given */
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/* size. They are found in the `hdmx' table. */
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/* */
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/* <Fields> */
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/* ppem :: The pixels per EM value at which these metrics apply. */
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/* */
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/* max_width :: The maximum advance width for this metric. */
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/* */
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/* widths :: An array of widths. Note: These are 8-bit bytes. */
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/* */
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typedef struct TT_HdmxEntryRec_
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{
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FT_Byte ppem;
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FT_Byte max_width;
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FT_Byte* widths;
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} TT_HdmxEntryRec, *TT_HdmxEntry;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_HdmxRec */
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/* */
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/* <Description> */
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/* A structure used to model the `hdmx' table, which contains */
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/* pre-computed widths for a set of given sizes/dimensions. */
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/* */
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/* <Fields> */
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/* version :: The version number. */
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/* */
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/* num_records :: The number of hdmx records. */
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/* */
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/* records :: An array of hdmx records. */
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/* */
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typedef struct TT_HdmxRec_
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{
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FT_UShort version;
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FT_Short num_records;
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TT_HdmxEntry records;
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} TT_HdmxRec, *TT_Hdmx;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_Kern0_PairRec */
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/* */
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/* <Description> */
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/* A structure used to model a kerning pair for the kerning table */
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/* format 0. The engine now loads this table if it finds one in the */
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/* font file. */
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/* */
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/* <Fields> */
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/* left :: The index of the left glyph in pair. */
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/* */
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/* right :: The index of the right glyph in pair. */
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/* */
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/* value :: The kerning distance. A positive value spaces the */
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/* glyphs, a negative one makes them closer. */
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/* */
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typedef struct TT_Kern0_PairRec_
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{
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FT_UShort left; /* index of left glyph in pair */
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FT_UShort right; /* index of right glyph in pair */
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FT_FWord value; /* kerning value */
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} TT_Kern0_PairRec, *TT_Kern0_Pair;
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#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/*** ***/
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/*** ***/
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/*** EMBEDDED BITMAPS SUPPORT ***/
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/*** ***/
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/*** ***/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_SBit_MetricsRec */
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/* */
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/* <Description> */
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/* A structure used to hold the big metrics of a given glyph bitmap */
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/* in a TrueType or OpenType font. These are usually found in the */
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/* `EBDT' (Microsoft) or `bloc' (Apple) table. */
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/* */
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/* <Fields> */
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/* height :: The glyph height in pixels. */
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/* */
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/* width :: The glyph width in pixels. */
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/* */
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/* horiBearingX :: The horizontal left bearing. */
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/* */
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/* horiBearingY :: The horizontal top bearing. */
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/* */
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/* horiAdvance :: The horizontal advance. */
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/* */
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/* vertBearingX :: The vertical left bearing. */
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/* */
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/* vertBearingY :: The vertical top bearing. */
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/* */
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/* vertAdvance :: The vertical advance. */
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/* */
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typedef struct TT_SBit_MetricsRec_
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{
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FT_Byte height;
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FT_Byte width;
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FT_Char horiBearingX;
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FT_Char horiBearingY;
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FT_Byte horiAdvance;
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FT_Char vertBearingX;
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FT_Char vertBearingY;
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FT_Byte vertAdvance;
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} TT_SBit_MetricsRec, *TT_SBit_Metrics;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_SBit_SmallMetricsRec */
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/* */
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/* <Description> */
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/* A structure used to hold the small metrics of a given glyph bitmap */
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/* in a TrueType or OpenType font. These are usually found in the */
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/* `EBDT' (Microsoft) or the `bdat' (Apple) table. */
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/* */
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/* <Fields> */
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/* height :: The glyph height in pixels. */
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/* */
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/* width :: The glyph width in pixels. */
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/* */
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/* bearingX :: The left-side bearing. */
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/* */
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/* bearingY :: The top-side bearing. */
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/* */
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/* advance :: The advance width or height. */
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/* */
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typedef struct TT_SBit_Small_Metrics_
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{
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FT_Byte height;
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FT_Byte width;
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FT_Char bearingX;
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FT_Char bearingY;
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FT_Byte advance;
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} TT_SBit_SmallMetricsRec, *TT_SBit_SmallMetrics;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_SBit_LineMetricsRec */
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/* */
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/* <Description> */
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/* A structure used to describe the text line metrics of a given */
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/* bitmap strike, for either a horizontal or vertical layout. */
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/* */
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/* <Fields> */
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/* ascender :: The ascender in pixels. */
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/* */
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/* descender :: The descender in pixels. */
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/* */
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/* max_width :: The maximum glyph width in pixels. */
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/* */
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/* caret_slope_enumerator :: Rise of the caret slope, typically set */
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/* to 1 for non-italic fonts. */
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/* */
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/* caret_slope_denominator :: Rise of the caret slope, typically set */
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/* to 0 for non-italic fonts. */
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/* */
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/* caret_offset :: Offset in pixels to move the caret for */
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/* proper positioning. */
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/* */
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/* min_origin_SB :: Minimum of horiBearingX (resp. */
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/* vertBearingY). */
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/* min_advance_SB :: Minimum of */
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/* */
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/* horizontal advance - */
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/* ( horiBearingX + width ) */
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/* */
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/* resp. */
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/* */
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/* vertical advance - */
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/* ( vertBearingY + height ) */
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/* */
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/* max_before_BL :: Maximum of horiBearingY (resp. */
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/* vertBearingY). */
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/* */
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/* min_after_BL :: Minimum of */
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/* */
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/* horiBearingY - height */
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/* */
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/* resp. */
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/* */
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/* vertBearingX - width */
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/* */
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/* pads :: Unused (to make the size of the record */
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/* a multiple of 32 bits. */
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/* */
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typedef struct TT_SBit_LineMetricsRec_
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{
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FT_Char ascender;
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FT_Char descender;
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FT_Byte max_width;
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FT_Char caret_slope_numerator;
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FT_Char caret_slope_denominator;
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FT_Char caret_offset;
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FT_Char min_origin_SB;
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FT_Char min_advance_SB;
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FT_Char max_before_BL;
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FT_Char min_after_BL;
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FT_Char pads[2];
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} TT_SBit_LineMetricsRec, *TT_SBit_LineMetrics;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* TT_SBit_RangeRec */
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/* */
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/* <Description> */
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/* A TrueType/OpenType subIndexTable as defined in the `EBLC' */
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/* (Microsoft) or `bloc' (Apple) tables. */
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/* */
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/* <Fields> */
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/* first_glyph :: The first glyph index in the range. */
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/* */
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/* last_glyph :: The last glyph index in the range. */
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/* */
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/* index_format :: The format of index table. Valid values are 1 */
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/* to 5. */
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/* */
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/* image_format :: The format of `EBDT' image data. */
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/* */
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/* image_offset :: The offset to image data in `EBDT'. */
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/* */
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/* image_size :: For index formats 2 and 5. This is the size in */
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/* bytes of each glyph bitmap. */
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/* */
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/* big_metrics :: For index formats 2 and 5. This is the big */
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/* metrics for each glyph bitmap. */
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/* */
|
|
/* num_glyphs :: For index formats 4 and 5. This is the number of */
|
|
/* glyphs in the code array. */
|
|
/* */
|
|
/* glyph_offsets :: For index formats 1 and 3. */
|
|
/* */
|
|
/* glyph_codes :: For index formats 4 and 5. */
|
|
/* */
|
|
/* table_offset :: The offset of the index table in the `EBLC' */
|
|
/* table. Only used during strike loading. */
|
|
/* */
|
|
typedef struct TT_SBit_RangeRec_
|
|
{
|
|
FT_UShort first_glyph;
|
|
FT_UShort last_glyph;
|
|
|
|
FT_UShort index_format;
|
|
FT_UShort image_format;
|
|
FT_ULong image_offset;
|
|
|
|
FT_ULong image_size;
|
|
TT_SBit_MetricsRec metrics;
|
|
FT_ULong num_glyphs;
|
|
|
|
FT_ULong* glyph_offsets;
|
|
FT_UShort* glyph_codes;
|
|
|
|
FT_ULong table_offset;
|
|
|
|
} TT_SBit_RangeRec, *TT_SBit_Range;
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <Struct> */
|
|
/* TT_SBit_StrikeRec */
|
|
/* */
|
|
/* <Description> */
|
|
/* A structure used describe a given bitmap strike in the `EBLC' */
|
|
/* (Microsoft) or `bloc' (Apple) tables. */
|
|
/* */
|
|
/* <Fields> */
|
|
/* num_index_ranges :: The number of index ranges. */
|
|
/* */
|
|
/* index_ranges :: An array of glyph index ranges. */
|
|
/* */
|
|
/* color_ref :: Unused. `color_ref' is put in for future */
|
|
/* enhancements, but these fields are already */
|
|
/* in use by other platforms (e.g. Newton). */
|
|
/* For details, please see */
|
|
/* */
|
|
/* http://fonts.apple.com/ */
|
|
/* TTRefMan/RM06/Chap6bloc.html */
|
|
/* */
|
|
/* hori :: The line metrics for horizontal layouts. */
|
|
/* */
|
|
/* vert :: The line metrics for vertical layouts. */
|
|
/* */
|
|
/* start_glyph :: The lowest glyph index for this strike. */
|
|
/* */
|
|
/* end_glyph :: The highest glyph index for this strike. */
|
|
/* */
|
|
/* x_ppem :: The number of horizontal pixels per EM. */
|
|
/* */
|
|
/* y_ppem :: The number of vertical pixels per EM. */
|
|
/* */
|
|
/* bit_depth :: The bit depth. Valid values are 1, 2, 4, */
|
|
/* and 8. */
|
|
/* */
|
|
/* flags :: Is this a vertical or horizontal strike? For */
|
|
/* details, please see */
|
|
/* */
|
|
/* http://fonts.apple.com/ */
|
|
/* TTRefMan/RM06/Chap6bloc.html */
|
|
/* */
|
|
typedef struct TT_SBit_StrikeRec_
|
|
{
|
|
FT_Int num_ranges;
|
|
TT_SBit_Range sbit_ranges;
|
|
FT_ULong ranges_offset;
|
|
|
|
FT_ULong color_ref;
|
|
|
|
TT_SBit_LineMetricsRec hori;
|
|
TT_SBit_LineMetricsRec vert;
|
|
|
|
FT_UShort start_glyph;
|
|
FT_UShort end_glyph;
|
|
|
|
FT_Byte x_ppem;
|
|
FT_Byte y_ppem;
|
|
|
|
FT_Byte bit_depth;
|
|
FT_Char flags;
|
|
|
|
} TT_SBit_StrikeRec, *TT_SBit_Strike;
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <Struct> */
|
|
/* TT_SBit_ComponentRec */
|
|
/* */
|
|
/* <Description> */
|
|
/* A simple structure to describe a compound sbit element. */
|
|
/* */
|
|
/* <Fields> */
|
|
/* glyph_code :: The element's glyph index. */
|
|
/* */
|
|
/* x_offset :: The element's left bearing. */
|
|
/* */
|
|
/* y_offset :: The element's top bearing. */
|
|
/* */
|
|
typedef struct TT_SBit_ComponentRec_
|
|
{
|
|
FT_UShort glyph_code;
|
|
FT_Char x_offset;
|
|
FT_Char y_offset;
|
|
|
|
} TT_SBit_ComponentRec, *TT_SBit_Component;
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <Struct> */
|
|
/* TT_SBit_ScaleRec */
|
|
/* */
|
|
/* <Description> */
|
|
/* A structure used describe a given bitmap scaling table, as defined */
|
|
/* in the `EBSC' table. */
|
|
/* */
|
|
/* <Fields> */
|
|
/* hori :: The horizontal line metrics. */
|
|
/* */
|
|
/* vert :: The vertical line metrics. */
|
|
/* */
|
|
/* x_ppem :: The number of horizontal pixels per EM. */
|
|
/* */
|
|
/* y_ppem :: The number of vertical pixels per EM. */
|
|
/* */
|
|
/* x_ppem_substitute :: Substitution x_ppem value. */
|
|
/* */
|
|
/* y_ppem_substitute :: Substitution y_ppem value. */
|
|
/* */
|
|
typedef struct TT_SBit_ScaleRec_
|
|
{
|
|
TT_SBit_LineMetricsRec hori;
|
|
TT_SBit_LineMetricsRec vert;
|
|
|
|
FT_Byte x_ppem;
|
|
FT_Byte y_ppem;
|
|
|
|
FT_Byte x_ppem_substitute;
|
|
FT_Byte y_ppem_substitute;
|
|
|
|
} TT_SBit_ScaleRec, *TT_SBit_Scale;
|
|
|
|
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*** ***/
|
|
/*** ***/
|
|
/*** POSTSCRIPT GLYPH NAMES SUPPORT ***/
|
|
/*** ***/
|
|
/*** ***/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <Struct> */
|
|
/* TT_Post_20Rec */
|
|
/* */
|
|
/* <Description> */
|
|
/* Postscript names sub-table, format 2.0. Stores the PS name of */
|
|
/* each glyph in the font face. */
|
|
/* */
|
|
/* <Fields> */
|
|
/* num_glyphs :: The number of named glyphs in the table. */
|
|
/* */
|
|
/* num_names :: The number of PS names stored in the table. */
|
|
/* */
|
|
/* glyph_indices :: The indices of the glyphs in the names arrays. */
|
|
/* */
|
|
/* glyph_names :: The PS names not in Mac Encoding. */
|
|
/* */
|
|
typedef struct TT_Post_20Rec_
|
|
{
|
|
FT_UShort num_glyphs;
|
|
FT_UShort num_names;
|
|
FT_UShort* glyph_indices;
|
|
FT_Char** glyph_names;
|
|
|
|
} TT_Post_20Rec, *TT_Post_20;
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <Struct> */
|
|
/* TT_Post_25Rec */
|
|
/* */
|
|
/* <Description> */
|
|
/* Postscript names sub-table, format 2.5. Stores the PS name of */
|
|
/* each glyph in the font face. */
|
|
/* */
|
|
/* <Fields> */
|
|
/* num_glyphs :: The number of glyphs in the table. */
|
|
/* */
|
|
/* offsets :: An array of signed offsets in a normal Mac */
|
|
/* Postscript name encoding. */
|
|
/* */
|
|
typedef struct TT_Post_25_
|
|
{
|
|
FT_UShort num_glyphs;
|
|
FT_Char* offsets;
|
|
|
|
} TT_Post_25Rec, *TT_Post_25;
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <Struct> */
|
|
/* TT_Post_NamesRec */
|
|
/* */
|
|
/* <Description> */
|
|
/* Postscript names table, either format 2.0 or 2.5. */
|
|
/* */
|
|
/* <Fields> */
|
|
/* loaded :: A flag to indicate whether the PS names are loaded. */
|
|
/* */
|
|
/* format_20 :: The sub-table used for format 2.0. */
|
|
/* */
|
|
/* format_25 :: The sub-table used for format 2.5. */
|
|
/* */
|
|
typedef struct TT_Post_NamesRec_
|
|
{
|
|
FT_Bool loaded;
|
|
|
|
union
|
|
{
|
|
TT_Post_20Rec format_20;
|
|
TT_Post_25Rec format_25;
|
|
|
|
} names;
|
|
|
|
} TT_Post_NamesRec, *TT_Post_Names;
|
|
|
|
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*** ***/
|
|
/*** ***/
|
|
/*** GX VARIATION TABLE SUPPORT ***/
|
|
/*** ***/
|
|
/*** ***/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
|
|
|
|
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
|
|
typedef struct GX_BlendRec_ *GX_Blend;
|
|
#endif
|
|
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*** ***/
|
|
/*** ***/
|
|
/*** EMBEDDED BDF PROPERTIES TABLE SUPPORT ***/
|
|
/*** ***/
|
|
/*** ***/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
|
|
/*
|
|
* These types are used to support a `BDF ' table that isn't part of the
|
|
* official TrueType specification. It is mainly used in SFNT-based
|
|
* bitmap fonts that were generated from a set of BDF fonts.
|
|
*
|
|
* The format of the table is as follows.
|
|
*
|
|
* USHORT version `BDF ' table version number, should be 0x0001.
|
|
* USHORT strikeCount Number of strikes (bitmap sizes) in this table.
|
|
* ULONG stringTable Offset (from start of BDF table) to string
|
|
* table.
|
|
*
|
|
* This is followed by an array of `strikeCount' descriptors, having the
|
|
* following format.
|
|
*
|
|
* USHORT ppem Vertical pixels per EM for this strike.
|
|
* USHORT numItems Number of items for this strike (properties and
|
|
* atoms). Maximum is 255.
|
|
*
|
|
* This array in turn is followed by `strikeCount' value sets. Each
|
|
* `value set' is an array of `numItems' items with the following format.
|
|
*
|
|
* ULONG item_name Offset in string table to item name.
|
|
* USHORT item_type The item type. Possible values are
|
|
* 0 => string (e.g., COMMENT)
|
|
* 1 => atom (e.g., FONT or even SIZE)
|
|
* 2 => int32
|
|
* 3 => uint32
|
|
* 0x10 => A flag to indicate a properties. This
|
|
* is ORed with the above values.
|
|
* ULONG item_value For strings => Offset into string table without
|
|
* the corresponding double quotes.
|
|
* For atoms => Offset into string table.
|
|
* For integers => Direct value.
|
|
*
|
|
* All strings in the string table consist of bytes and are
|
|
* zero-terminated.
|
|
*
|
|
*/
|
|
|
|
#ifdef TT_CONFIG_OPTION_BDF
|
|
|
|
typedef struct TT_BDFRec_
|
|
{
|
|
FT_Byte* table;
|
|
FT_Byte* table_end;
|
|
FT_Byte* strings;
|
|
FT_UInt32 strings_size;
|
|
FT_UInt num_strikes;
|
|
FT_Bool loaded;
|
|
|
|
} TT_BDFRec, *TT_BDF;
|
|
|
|
#endif /* TT_CONFIG_OPTION_BDF */
|
|
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*** ***/
|
|
/*** ***/
|
|
/*** ORIGINAL TT_FACE CLASS DEFINITION ***/
|
|
/*** ***/
|
|
/*** ***/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
/*************************************************************************/
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* This structure/class is defined here because it is common to the */
|
|
/* following formats: TTF, OpenType-TT, and OpenType-CFF. */
|
|
/* */
|
|
/* Note, however, that the classes TT_Size and TT_GlyphSlot are not */
|
|
/* shared between font drivers, and are thus defined in `ttobjs.h'. */
|
|
/* */
|
|
/*************************************************************************/
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <Type> */
|
|
/* TT_Face */
|
|
/* */
|
|
/* <Description> */
|
|
/* A handle to a TrueType face/font object. A TT_Face encapsulates */
|
|
/* the resolution and scaling independent parts of a TrueType font */
|
|
/* resource. */
|
|
/* */
|
|
/* <Note> */
|
|
/* The TT_Face structure is also used as a `parent class' for the */
|
|
/* OpenType-CFF class (T2_Face). */
|
|
/* */
|
|
typedef struct TT_FaceRec_* TT_Face;
|
|
|
|
|
|
/* a function type used for the truetype bytecode interpreter hooks */
|
|
typedef FT_Error
|
|
(*TT_Interpreter)( void* exec_context );
|
|
|
|
/* forward declaration */
|
|
typedef struct TT_LoaderRec_* TT_Loader;
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <FuncType> */
|
|
/* TT_Loader_GotoTableFunc */
|
|
/* */
|
|
/* <Description> */
|
|
/* Seeks a stream to the start of a given TrueType table. */
|
|
/* */
|
|
/* <Input> */
|
|
/* face :: A handle to the target face object. */
|
|
/* */
|
|
/* tag :: A 4-byte tag used to name the table. */
|
|
/* */
|
|
/* stream :: The input stream. */
|
|
/* */
|
|
/* <Output> */
|
|
/* length :: The length of the table in bytes. Set to 0 if not */
|
|
/* needed. */
|
|
/* */
|
|
/* <Return> */
|
|
/* FreeType error code. 0 means success. */
|
|
/* */
|
|
/* <Note> */
|
|
/* The stream cursor must be at the font file's origin. */
|
|
/* */
|
|
typedef FT_Error
|
|
(*TT_Loader_GotoTableFunc)( TT_Face face,
|
|
FT_ULong tag,
|
|
FT_Stream stream,
|
|
FT_ULong* length );
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <FuncType> */
|
|
/* TT_Loader_StartGlyphFunc */
|
|
/* */
|
|
/* <Description> */
|
|
/* Seeks a stream to the start of a given glyph element, and opens a */
|
|
/* frame for it. */
|
|
/* */
|
|
/* <Input> */
|
|
/* loader :: The current TrueType glyph loader object. */
|
|
/* */
|
|
/* glyph index :: The index of the glyph to access. */
|
|
/* */
|
|
/* offset :: The offset of the glyph according to the */
|
|
/* `locations' table. */
|
|
/* */
|
|
/* byte_count :: The size of the frame in bytes. */
|
|
/* */
|
|
/* <Return> */
|
|
/* FreeType error code. 0 means success. */
|
|
/* */
|
|
/* <Note> */
|
|
/* This function is normally equivalent to FT_STREAM_SEEK(offset) */
|
|
/* followed by FT_FRAME_ENTER(byte_count) with the loader's stream, */
|
|
/* but alternative formats (e.g. compressed ones) might use something */
|
|
/* different. */
|
|
/* */
|
|
typedef FT_Error
|
|
(*TT_Loader_StartGlyphFunc)( TT_Loader loader,
|
|
FT_UInt glyph_index,
|
|
FT_ULong offset,
|
|
FT_UInt byte_count );
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <FuncType> */
|
|
/* TT_Loader_ReadGlyphFunc */
|
|
/* */
|
|
/* <Description> */
|
|
/* Reads one glyph element (its header, a simple glyph, or a */
|
|
/* composite) from the loader's current stream frame. */
|
|
/* */
|
|
/* <Input> */
|
|
/* loader :: The current TrueType glyph loader object. */
|
|
/* */
|
|
/* <Return> */
|
|
/* FreeType error code. 0 means success. */
|
|
/* */
|
|
typedef FT_Error
|
|
(*TT_Loader_ReadGlyphFunc)( TT_Loader loader );
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <FuncType> */
|
|
/* TT_Loader_EndGlyphFunc */
|
|
/* */
|
|
/* <Description> */
|
|
/* Closes the current loader stream frame for the glyph. */
|
|
/* */
|
|
/* <Input> */
|
|
/* loader :: The current TrueType glyph loader object. */
|
|
/* */
|
|
typedef void
|
|
(*TT_Loader_EndGlyphFunc)( TT_Loader loader );
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* TrueType Face Type */
|
|
/* */
|
|
/* <Struct> */
|
|
/* TT_Face */
|
|
/* */
|
|
/* <Description> */
|
|
/* The TrueType face class. These objects model the resolution and */
|
|
/* point-size independent data found in a TrueType font file. */
|
|
/* */
|
|
/* <Fields> */
|
|
/* root :: The base FT_Face structure, managed by the */
|
|
/* base layer. */
|
|
/* */
|
|
/* ttc_header :: The TrueType collection header, used when */
|
|
/* the file is a `ttc' rather than a `ttf'. */
|
|
/* For ordinary font files, the field */
|
|
/* `ttc_header.count' is set to 0. */
|
|
/* */
|
|
/* format_tag :: The font format tag. */
|
|
/* */
|
|
/* num_tables :: The number of TrueType tables in this font */
|
|
/* file. */
|
|
/* */
|
|
/* dir_tables :: The directory of TrueType tables for this */
|
|
/* font file. */
|
|
/* */
|
|
/* header :: The font's font header (`head' table). */
|
|
/* Read on font opening. */
|
|
/* */
|
|
/* horizontal :: The font's horizontal header (`hhea' */
|
|
/* table). This field also contains the */
|
|
/* associated horizontal metrics table */
|
|
/* (`hmtx'). */
|
|
/* */
|
|
/* max_profile :: The font's maximum profile table. Read on */
|
|
/* font opening. Note that some maximum */
|
|
/* values cannot be taken directly from this */
|
|
/* table. We thus define additional fields */
|
|
/* below to hold the computed maxima. */
|
|
/* */
|
|
/* vertical_info :: A boolean which is set when the font file */
|
|
/* contains vertical metrics. If not, the */
|
|
/* value of the `vertical' field is */
|
|
/* undefined. */
|
|
/* */
|
|
/* vertical :: The font's vertical header (`vhea' table). */
|
|
/* This field also contains the associated */
|
|
/* vertical metrics table (`vmtx'), if found. */
|
|
/* IMPORTANT: The contents of this field is */
|
|
/* undefined if the `verticalInfo' field is */
|
|
/* unset. */
|
|
/* */
|
|
/* num_names :: The number of name records within this */
|
|
/* TrueType font. */
|
|
/* */
|
|
/* name_table :: The table of name records (`name'). */
|
|
/* */
|
|
/* os2 :: The font's OS/2 table (`OS/2'). */
|
|
/* */
|
|
/* postscript :: The font's PostScript table (`post' */
|
|
/* table). The PostScript glyph names are */
|
|
/* not loaded by the driver on face opening. */
|
|
/* See the `ttpost' module for more details. */
|
|
/* */
|
|
/* cmap_table :: Address of the face's `cmap' SFNT table */
|
|
/* in memory (it's an extracted frame). */
|
|
/* */
|
|
/* cmap_size :: The size in bytes of the `cmap_table' */
|
|
/* described above. */
|
|
/* */
|
|
/* goto_table :: A function called by each TrueType table */
|
|
/* loader to position a stream's cursor to */
|
|
/* the start of a given table according to */
|
|
/* its tag. It defaults to TT_Goto_Face but */
|
|
/* can be different for strange formats (e.g. */
|
|
/* Type 42). */
|
|
/* */
|
|
/* access_glyph_frame :: A function used to access the frame of a */
|
|
/* given glyph within the face's font file. */
|
|
/* */
|
|
/* forget_glyph_frame :: A function used to forget the frame of a */
|
|
/* given glyph when all data has been loaded. */
|
|
/* */
|
|
/* read_glyph_header :: A function used to read a glyph header. */
|
|
/* It must be called between an `access' and */
|
|
/* `forget'. */
|
|
/* */
|
|
/* read_simple_glyph :: A function used to read a simple glyph. */
|
|
/* It must be called after the header was */
|
|
/* read, and before the `forget'. */
|
|
/* */
|
|
/* read_composite_glyph :: A function used to read a composite glyph. */
|
|
/* It must be called after the header was */
|
|
/* read, and before the `forget'. */
|
|
/* */
|
|
/* sfnt :: A pointer to the SFNT service. */
|
|
/* */
|
|
/* psnames :: A pointer to the PostScript names service. */
|
|
/* */
|
|
/* hdmx :: The face's horizontal device metrics */
|
|
/* (`hdmx' table). This table is optional in */
|
|
/* TrueType/OpenType fonts. */
|
|
/* */
|
|
/* gasp :: The grid-fitting and scaling properties */
|
|
/* table (`gasp'). This table is optional in */
|
|
/* TrueType/OpenType fonts. */
|
|
/* */
|
|
/* pclt :: The `pclt' SFNT table. */
|
|
/* */
|
|
/* num_sbit_strikes :: The number of sbit strikes, i.e., bitmap */
|
|
/* sizes, embedded in this font. */
|
|
/* */
|
|
/* sbit_strikes :: An array of sbit strikes embedded in this */
|
|
/* font. This table is optional in a */
|
|
/* TrueType/OpenType font. */
|
|
/* */
|
|
/* num_sbit_scales :: The number of sbit scales for this font. */
|
|
/* */
|
|
/* sbit_scales :: Array of sbit scales embedded in this */
|
|
/* font. This table is optional in a */
|
|
/* TrueType/OpenType font. */
|
|
/* */
|
|
/* postscript_names :: A table used to store the Postscript names */
|
|
/* of the glyphs for this font. See the */
|
|
/* file `ttconfig.h' for comments on the */
|
|
/* TT_CONFIG_OPTION_POSTSCRIPT_NAMES option. */
|
|
/* */
|
|
/* num_locations :: The number of glyph locations in this */
|
|
/* TrueType file. This should be */
|
|
/* identical to the number of glyphs. */
|
|
/* Ignored for Type 2 fonts. */
|
|
/* */
|
|
/* glyph_locations :: An array of longs. These are offsets to */
|
|
/* glyph data within the `glyf' table. */
|
|
/* Ignored for Type 2 font faces. */
|
|
/* */
|
|
/* glyf_len :: The length of the `glyf' table. Needed */
|
|
/* for malformed `loca' tables. */
|
|
/* */
|
|
/* font_program_size :: Size in bytecodes of the face's font */
|
|
/* program. 0 if none defined. Ignored for */
|
|
/* Type 2 fonts. */
|
|
/* */
|
|
/* font_program :: The face's font program (bytecode stream) */
|
|
/* executed at load time, also used during */
|
|
/* glyph rendering. Comes from the `fpgm' */
|
|
/* table. Ignored for Type 2 font fonts. */
|
|
/* */
|
|
/* cvt_program_size :: The size in bytecodes of the face's cvt */
|
|
/* program. Ignored for Type 2 fonts. */
|
|
/* */
|
|
/* cvt_program :: The face's cvt program (bytecode stream) */
|
|
/* executed each time an instance/size is */
|
|
/* changed/reset. Comes from the `prep' */
|
|
/* table. Ignored for Type 2 fonts. */
|
|
/* */
|
|
/* cvt_size :: Size of the control value table (in */
|
|
/* entries). Ignored for Type 2 fonts. */
|
|
/* */
|
|
/* cvt :: The face's original control value table. */
|
|
/* Coordinates are expressed in unscaled font */
|
|
/* units. Comes from the `cvt ' table. */
|
|
/* Ignored for Type 2 fonts. */
|
|
/* */
|
|
/* num_kern_pairs :: The number of kerning pairs present in the */
|
|
/* font file. The engine only loads the */
|
|
/* first horizontal format 0 kern table it */
|
|
/* finds in the font file. Ignored for */
|
|
/* Type 2 fonts. */
|
|
/* */
|
|
/* kern_table_index :: The index of the kerning table in the font */
|
|
/* kerning directory. Ignored for Type 2 */
|
|
/* fonts. */
|
|
/* */
|
|
/* interpreter :: A pointer to the TrueType bytecode */
|
|
/* interpreters field is also used to hook */
|
|
/* the debugger in `ttdebug'. */
|
|
/* */
|
|
/* unpatented_hinting :: If true, use only unpatented methods in */
|
|
/* the bytecode interpreter. */
|
|
/* */
|
|
/* doblend :: A boolean which is set if the font should */
|
|
/* be blended (this is for GX var). */
|
|
/* */
|
|
/* blend :: Contains the data needed to control GX */
|
|
/* variation tables (rather like Multiple */
|
|
/* Master data). */
|
|
/* */
|
|
/* extra :: Reserved for third-party font drivers. */
|
|
/* */
|
|
/* postscript_name :: The PS name of the font. Used by the */
|
|
/* postscript name service. */
|
|
/* */
|
|
typedef struct TT_FaceRec_
|
|
{
|
|
FT_FaceRec root;
|
|
|
|
TTC_HeaderRec ttc_header;
|
|
|
|
FT_ULong format_tag;
|
|
FT_UShort num_tables;
|
|
TT_Table dir_tables;
|
|
|
|
TT_Header header; /* TrueType header table */
|
|
TT_HoriHeader horizontal; /* TrueType horizontal header */
|
|
|
|
TT_MaxProfile max_profile;
|
|
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
|
|
FT_ULong max_components; /* stubbed to 0 */
|
|
#endif
|
|
|
|
FT_Bool vertical_info;
|
|
TT_VertHeader vertical; /* TT Vertical header, if present */
|
|
|
|
FT_UShort num_names; /* number of name records */
|
|
TT_NameTableRec name_table; /* name table */
|
|
|
|
TT_OS2 os2; /* TrueType OS/2 table */
|
|
TT_Postscript postscript; /* TrueType Postscript table */
|
|
|
|
FT_Byte* cmap_table; /* extracted `cmap' table */
|
|
FT_ULong cmap_size;
|
|
|
|
TT_Loader_GotoTableFunc goto_table;
|
|
|
|
TT_Loader_StartGlyphFunc access_glyph_frame;
|
|
TT_Loader_EndGlyphFunc forget_glyph_frame;
|
|
TT_Loader_ReadGlyphFunc read_glyph_header;
|
|
TT_Loader_ReadGlyphFunc read_simple_glyph;
|
|
TT_Loader_ReadGlyphFunc read_composite_glyph;
|
|
|
|
/* a typeless pointer to the SFNT_Interface table used to load */
|
|
/* the basic TrueType tables in the face object */
|
|
void* sfnt;
|
|
|
|
/* a typeless pointer to the FT_Service_PsCMapsRec table used to */
|
|
/* handle glyph names <-> unicode & Mac values */
|
|
void* psnames;
|
|
|
|
|
|
/***********************************************************************/
|
|
/* */
|
|
/* Optional TrueType/OpenType tables */
|
|
/* */
|
|
/***********************************************************************/
|
|
|
|
/* horizontal device metrics */
|
|
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
|
|
TT_HdmxRec hdmx;
|
|
#endif
|
|
|
|
/* grid-fitting and scaling table */
|
|
TT_GaspRec gasp; /* the `gasp' table */
|
|
|
|
/* PCL 5 table */
|
|
TT_PCLT pclt;
|
|
|
|
/* embedded bitmaps support */
|
|
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
|
|
FT_ULong num_sbit_strikes;
|
|
TT_SBit_Strike sbit_strikes;
|
|
#endif
|
|
|
|
FT_ULong num_sbit_scales;
|
|
TT_SBit_Scale sbit_scales;
|
|
|
|
/* postscript names table */
|
|
TT_Post_NamesRec postscript_names;
|
|
|
|
|
|
/***********************************************************************/
|
|
/* */
|
|
/* TrueType-specific fields (ignored by the OTF-Type2 driver) */
|
|
/* */
|
|
/***********************************************************************/
|
|
|
|
/* the glyph locations */
|
|
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
|
|
FT_UShort num_locations_stub;
|
|
FT_Long* glyph_locations_stub;
|
|
#endif
|
|
|
|
/* the font program, if any */
|
|
FT_ULong font_program_size;
|
|
FT_Byte* font_program;
|
|
|
|
/* the cvt program, if any */
|
|
FT_ULong cvt_program_size;
|
|
FT_Byte* cvt_program;
|
|
|
|
/* the original, unscaled, control value table */
|
|
FT_ULong cvt_size;
|
|
FT_Short* cvt;
|
|
|
|
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
|
|
/* the format 0 kerning table, if any */
|
|
FT_Int num_kern_pairs;
|
|
FT_Int kern_table_index;
|
|
TT_Kern0_Pair kern_pairs;
|
|
#endif
|
|
|
|
/* A pointer to the bytecode interpreter to use. This is also */
|
|
/* used to hook the debugger for the `ttdebug' utility. */
|
|
TT_Interpreter interpreter;
|
|
|
|
#ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING
|
|
/* Use unpatented hinting only. */
|
|
FT_Bool unpatented_hinting;
|
|
#endif
|
|
|
|
/***********************************************************************/
|
|
/* */
|
|
/* Other tables or fields. This is used by derivative formats like */
|
|
/* OpenType. */
|
|
/* */
|
|
/***********************************************************************/
|
|
|
|
FT_Generic extra;
|
|
|
|
const char* postscript_name;
|
|
|
|
/* since version 2.1.8, but was originally placed after */
|
|
/* `glyph_locations_stub' */
|
|
FT_ULong glyf_len;
|
|
|
|
/* since version 2.1.8, but was originally placed before `extra' */
|
|
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
|
|
FT_Bool doblend;
|
|
GX_Blend blend;
|
|
#endif
|
|
|
|
/* since version 2.2 */
|
|
|
|
FT_Byte* horz_metrics;
|
|
FT_ULong horz_metrics_size;
|
|
|
|
FT_Byte* vert_metrics;
|
|
FT_ULong vert_metrics_size;
|
|
|
|
FT_UInt num_locations;
|
|
FT_Byte* glyph_locations;
|
|
|
|
FT_Byte* hdmx_table;
|
|
FT_ULong hdmx_table_size;
|
|
FT_UInt hdmx_record_count;
|
|
FT_ULong hdmx_record_size;
|
|
FT_Byte* hdmx_record_sizes;
|
|
|
|
FT_Byte* sbit_table;
|
|
FT_ULong sbit_table_size;
|
|
FT_UInt sbit_num_strikes;
|
|
|
|
FT_Byte* kern_table;
|
|
FT_ULong kern_table_size;
|
|
FT_UInt num_kern_tables;
|
|
FT_UInt32 kern_avail_bits;
|
|
FT_UInt32 kern_order_bits;
|
|
|
|
#ifdef TT_CONFIG_OPTION_BDF
|
|
TT_BDFRec bdf;
|
|
#endif /* TT_CONFIG_OPTION_BDF */
|
|
|
|
/* since 2.3.0 */
|
|
FT_ULong horz_metrics_offset;
|
|
FT_ULong vert_metrics_offset;
|
|
|
|
} TT_FaceRec;
|
|
|
|
|
|
/*************************************************************************/
|
|
/* */
|
|
/* <Struct> */
|
|
/* TT_GlyphZoneRec */
|
|
/* */
|
|
/* <Description> */
|
|
/* A glyph zone is used to load, scale and hint glyph outline */
|
|
/* coordinates. */
|
|
/* */
|
|
/* <Fields> */
|
|
/* memory :: A handle to the memory manager. */
|
|
/* */
|
|
/* max_points :: The maximal size in points of the zone. */
|
|
/* */
|
|
/* max_contours :: Max size in links contours of the zone. */
|
|
/* */
|
|
/* n_points :: The current number of points in the zone. */
|
|
/* */
|
|
/* n_contours :: The current number of contours in the zone. */
|
|
/* */
|
|
/* org :: The original glyph coordinates (font */
|
|
/* units/scaled). */
|
|
/* */
|
|
/* cur :: The current glyph coordinates (scaled/hinted). */
|
|
/* */
|
|
/* tags :: The point control tags. */
|
|
/* */
|
|
/* contours :: The contours end points. */
|
|
/* */
|
|
/* first_point :: Offset of the current subglyph's first point. */
|
|
/* */
|
|
typedef struct TT_GlyphZoneRec_
|
|
{
|
|
FT_Memory memory;
|
|
FT_UShort max_points;
|
|
FT_UShort max_contours;
|
|
FT_UShort n_points; /* number of points in zone */
|
|
FT_Short n_contours; /* number of contours */
|
|
|
|
FT_Vector* org; /* original point coordinates */
|
|
FT_Vector* cur; /* current point coordinates */
|
|
FT_Vector* orus; /* original (unscaled) point coordinates */
|
|
|
|
FT_Byte* tags; /* current touch flags */
|
|
FT_UShort* contours; /* contour end points */
|
|
|
|
FT_UShort first_point; /* offset of first (#0) point */
|
|
|
|
} TT_GlyphZoneRec, *TT_GlyphZone;
|
|
|
|
|
|
/* handle to execution context */
|
|
typedef struct TT_ExecContextRec_* TT_ExecContext;
|
|
|
|
/* glyph loader structure */
|
|
typedef struct TT_LoaderRec_
|
|
{
|
|
FT_Face face;
|
|
FT_Size size;
|
|
FT_GlyphSlot glyph;
|
|
FT_GlyphLoader gloader;
|
|
|
|
FT_ULong load_flags;
|
|
FT_UInt glyph_index;
|
|
|
|
FT_Stream stream;
|
|
FT_Int byte_len;
|
|
|
|
FT_Short n_contours;
|
|
FT_BBox bbox;
|
|
FT_Int left_bearing;
|
|
FT_Int advance;
|
|
FT_Int linear;
|
|
FT_Bool linear_def;
|
|
FT_Bool preserve_pps;
|
|
FT_Vector pp1;
|
|
FT_Vector pp2;
|
|
|
|
FT_ULong glyf_offset;
|
|
|
|
/* the zone where we load our glyphs */
|
|
TT_GlyphZoneRec base;
|
|
TT_GlyphZoneRec zone;
|
|
|
|
TT_ExecContext exec;
|
|
FT_Byte* instructions;
|
|
FT_ULong ins_pos;
|
|
|
|
/* for possible extensibility in other formats */
|
|
void* other;
|
|
|
|
/* since version 2.1.8 */
|
|
FT_Int top_bearing;
|
|
FT_Int vadvance;
|
|
FT_Vector pp3;
|
|
FT_Vector pp4;
|
|
|
|
/* since version 2.2.1 */
|
|
FT_Byte* cursor;
|
|
FT_Byte* limit;
|
|
|
|
} TT_LoaderRec;
|
|
|
|
|
|
FT_END_HEADER
|
|
|
|
#endif /* __TTTYPES_H__ */
|
|
|
|
|
|
/* END */
|