392 lines
14 KiB
C
392 lines
14 KiB
C
/***************************************************************************/
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/* */
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/* t1tables.h */
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/* */
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/* Basic Type 1/Type 2 tables definitions and interface (specification */
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/* only). */
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/* */
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/* Copyright 1996-2001, 2002, 2003 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 __T1TABLES_H__
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#define __T1TABLES_H__
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#include <ft2build.h>
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#include FT_FREETYPE_H
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FT_BEGIN_HEADER
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/*************************************************************************/
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/* */
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/* <Section> */
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/* type1_tables */
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/* */
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/* <Title> */
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/* Type 1 Tables */
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/* */
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/* <Abstract> */
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/* Type 1 (PostScript) specific font tables. */
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/* */
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/* <Description> */
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/* This section contains the definition of Type 1-specific tables, */
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/* including structures related to other PostScript font formats. */
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/* */
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/*************************************************************************/
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/* Note that we separate font data in PS_FontInfoRec and PS_PrivateRec */
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/* structures in order to support Multiple Master fonts. */
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* PS_FontInfoRec */
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/* */
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/* <Description> */
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/* A structure used to model a Type1/Type2 FontInfo dictionary. Note */
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/* that for Multiple Master fonts, each instance has its own */
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/* FontInfo. */
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/* */
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typedef struct PS_FontInfoRec
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{
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FT_String* version;
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FT_String* notice;
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FT_String* full_name;
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FT_String* family_name;
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FT_String* weight;
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FT_Fixed* italic_angle;
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FT_Bool* is_fixed_pitch;
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FT_Fixed* underline_position;
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FT_Fixed* underline_thickness;
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} PS_FontInfoRec, *PS_FontInfo;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* T1_FontInfo */
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/* */
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/* <Description> */
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/* This type is equivalent to @PS_FontInfoRec. It is deprecated but */
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/* kept to maintain source compatibility between various versions of */
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/* FreeType. */
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/* */
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typedef PS_FontInfoRec T1_FontInfo;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* PS_PrivateRec */
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/* */
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/* <Description> */
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/* A structure used to model a Type1/Type2 private dictionary. Note */
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/* that for Multiple Master fonts, each instance has its own Private */
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/* dictionary. */
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/* */
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typedef struct PS_PrivateRec_
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{
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FT_Int unique_id;
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FT_Int lenIV;
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FT_Byte num_blue_values;
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FT_Byte num_other_blues;
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FT_Byte num_family_blues;
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FT_Byte num_family_other_blues;
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FT_Short blue_values[14];
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FT_Short other_blues[10];
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FT_Short family_blues [14];
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FT_Short family_other_blues[10];
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FT_Fixed blue_scale;
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FT_Int blue_shift;
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FT_Int blue_fuzz;
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FT_UShort standard_width[1];
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FT_UShort standard_height[1];
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FT_Byte num_snap_widths;
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FT_Byte num_snap_heights;
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FT_Bool force_bold;
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FT_Bool round_stem_up;
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FT_Short snap_widths [13]; /* including std width */
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FT_Short snap_heights[13]; /* including std height */
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FT_Long language_group;
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FT_Long password;
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FT_Short min_feature[2];
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} PS_PrivateRec, *PS_Private;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* T1_Private */
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/* */
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/* <Description> */
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/* This type is equivalent to @PS_PrivateRec. It is deprecated but */
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/* kept to maintain source compatibility between various versions of */
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/* FreeType. */
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/* */
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typedef PS_PrivateRec T1_Private;
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/*************************************************************************/
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/* */
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/* <Enum> */
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/* T1_Blend_Flags */
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/* */
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/* <Description> */
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/* A set of flags used to indicate which fields are present in a */
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/* given blen dictionary (font info or private). Used to support */
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/* Multiple Masters fonts. */
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/* */
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typedef enum
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{
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/*# required fields in a FontInfo blend dictionary */
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T1_BLEND_UNDERLINE_POSITION = 0,
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T1_BLEND_UNDERLINE_THICKNESS,
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T1_BLEND_ITALIC_ANGLE,
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/*# required fields in a Private blend dictionary */
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T1_BLEND_BLUE_VALUES,
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T1_BLEND_OTHER_BLUES,
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T1_BLEND_STANDARD_WIDTH,
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T1_BLEND_STANDARD_HEIGHT,
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T1_BLEND_STEM_SNAP_WIDTHS,
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T1_BLEND_STEM_SNAP_HEIGHTS,
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T1_BLEND_BLUE_SCALE,
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T1_BLEND_BLUE_SHIFT,
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T1_BLEND_FAMILY_BLUES,
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T1_BLEND_FAMILY_OTHER_BLUES,
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T1_BLEND_FORCE_BOLD,
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/*# never remove */
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T1_BLEND_MAX
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} T1_Blend_Flags;
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/*# backwards compatible definitions */
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#define t1_blend_underline_position T1_BLEND_UNDERLINE_POSITION
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#define t1_blend_underline_thickness T1_BLEND_UNDERLINE_THICKNESS
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#define t1_blend_italic_angle T1_BLEND_ITALIC_ANGLE
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#define t1_blend_blue_values T1_BLEND_BLUE_VALUES
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#define t1_blend_other_blues T1_BLEND_OTHER_BLUES
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#define t1_blend_standard_widths T1_BLEND_STANDARD_WIDTH
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#define t1_blend_standard_height T1_BLEND_STANDARD_HEIGHT
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#define t1_blend_stem_snap_widths T1_BLEND_STEM_SNAP_WIDTHS
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#define t1_blend_stem_snap_heights T1_BLEND_STEM_SNAP_HEIGHTS
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#define t1_blend_blue_scale T1_BLEND_BLUE_SCALE
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#define t1_blend_blue_shift T1_BLEND_BLUE_SHIFT
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#define t1_blend_family_blues T1_BLEND_FAMILY_BLUES
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#define t1_blend_family_other_blues T1_BLEND_FAMILY_OTHER_BLUES
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#define t1_blend_force_bold T1_BLEND_FORCE_BOLD
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#define t1_blend_max T1_BLEND_MAX
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/* maximum number of Multiple Masters designs, as defined in the spec */
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#define T1_MAX_MM_DESIGNS 16
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/* maximum number of Multiple Masters axes, as defined in the spec */
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#define T1_MAX_MM_AXIS 4
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/* maximum number of elements in a design map */
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#define T1_MAX_MM_MAP_POINTS 20
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/* this structure is used to store the BlendDesignMap entry for an axis */
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typedef struct PS_DesignMap_
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{
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FT_Byte num_points;
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FT_Fixed* design_points;
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FT_Fixed* blend_points;
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} PS_DesignMapRec, *PS_DesignMap;
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/* backwards-compatible definition */
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typedef PS_DesignMapRec T1_DesignMap;
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typedef struct PS_BlendRec_
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{
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FT_UInt num_designs;
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FT_UInt num_axis;
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FT_String* axis_names[T1_MAX_MM_AXIS];
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FT_Fixed* design_pos[T1_MAX_MM_DESIGNS];
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PS_DesignMapRec design_map[T1_MAX_MM_AXIS];
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FT_Fixed* weight_vector;
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FT_Fixed* default_weight_vector;
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PS_FontInfo font_infos[T1_MAX_MM_DESIGNS + 1];
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PS_Private privates [T1_MAX_MM_DESIGNS + 1];
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FT_ULong blend_bitflags;
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FT_BBox* bboxes [T1_MAX_MM_DESIGNS + 1];
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} PS_BlendRec, *PS_Blend;
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/* backwards-compatible definition */
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typedef PS_BlendRec T1_Blend;
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typedef struct CID_FaceDictRec_
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{
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PS_PrivateRec private_dict;
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FT_UInt len_buildchar;
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FT_Fixed forcebold_threshold;
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FT_Pos stroke_width;
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FT_Fixed expansion_factor;
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FT_Byte paint_type;
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FT_Byte font_type;
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FT_Matrix font_matrix;
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FT_Vector font_offset;
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FT_UInt num_subrs;
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FT_ULong subrmap_offset;
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FT_Int sd_bytes;
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} CID_FaceDictRec, *CID_FaceDict;
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/* backwards-compatible definition */
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typedef CID_FaceDictRec CID_FontDict;
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typedef struct CID_FaceInfoRec_
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{
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FT_String* cid_font_name;
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FT_Fixed cid_version;
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FT_Int cid_font_type;
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FT_String* registry;
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FT_String* ordering;
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FT_Int supplement;
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PS_FontInfoRec font_info;
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FT_BBox font_bbox;
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FT_ULong uid_base;
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FT_Int num_xuid;
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FT_ULong xuid[16];
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FT_ULong cidmap_offset;
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FT_Int fd_bytes;
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FT_Int gd_bytes;
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FT_ULong cid_count;
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FT_Int num_dicts;
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CID_FaceDict font_dicts;
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FT_ULong data_offset;
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} CID_FaceInfoRec, *CID_FaceInfo;
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/*************************************************************************/
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/* */
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/* <Struct> */
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/* CID_Info */
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/* */
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/* <Description> */
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/* This type is equivalent to @CID_FaceInfoRec. It is deprecated but */
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/* kept to maintain source compatibility between various versions of */
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/* FreeType. */
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/* */
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typedef CID_FaceInfoRec CID_Info;
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/* */
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/************************************************************************
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*
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* @function:
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* FT_Has_PS_Glyph_Names
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*
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* @description:
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* Return true if a given face provides reliable Postscript glyph
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* names. This is similar to using the @FT_HAS_GLYPH_NAMES macro,
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* except that certain fonts (mostly TrueType) contain incorrect
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* glyph name tables.
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*
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* When this function returns true, the caller is sure that the glyph
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* names returned by @FT_Get_Glyph_Name are reliable.
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*
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* @input:
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* face ::
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* face handle
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*
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* @return:
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* Boolean. True if glyph names are reliable.
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*/
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FT_EXPORT( FT_Int )
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FT_Has_PS_Glyph_Names( FT_Face face );
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/************************************************************************
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*
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* @function:
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* FT_Get_PS_Font_Info
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*
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* @description:
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* Retrieve the @PS_FontInfoRec structure corresponding to a given
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* Postscript font.
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*
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* @input:
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* face ::
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* Postscript face handle.
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*
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* @output:
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* afont_info ::
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* Output font info structure pointer.
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*
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* @return:
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* FreeType error code. 0 means success.
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*
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* @note:
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* The string pointers within the font info structure are owned by
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* the face and don't need to be freed by the caller.
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*
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* If the font's format is not Postscript-based, this function will
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* return the @FT_Err_Invalid_Argument error code.
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*/
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FT_EXPORT( FT_Error )
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FT_Get_PS_Font_Info( FT_Face face,
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PS_FontInfoRec *afont_info );
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/* */
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FT_END_HEADER
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#endif /* __T1TABLES_H__ */
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/* END */
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