| /**************************************************************************** |
| * |
| * t1tables.h |
| * |
| * Basic Type 1/Type 2 tables definitions and interface (specification |
| * only). |
| * |
| * Copyright (C) 1996-2020 by |
| * David Turner, Robert Wilhelm, and Werner Lemberg. |
| * |
| * This file is part of the FreeType project, and may only be used, |
| * modified, and distributed under the terms of the FreeType project |
| * license, LICENSE.TXT. By continuing to use, modify, or distribute |
| * this file you indicate that you have read the license and |
| * understand and accept it fully. |
| * |
| */ |
| |
| |
| #ifndef T1TABLES_H_ |
| #define T1TABLES_H_ |
| |
| |
| #include <ft2build.h> |
| #include FT_FREETYPE_H |
| |
| #ifdef FREETYPE_H |
| #error "freetype.h of FreeType 1 has been loaded!" |
| #error "Please fix the directory search order for header files" |
| #error "so that freetype.h of FreeType 2 is found first." |
| #endif |
| |
| |
| FT_BEGIN_HEADER |
| |
| |
| /************************************************************************** |
| * |
| * @section: |
| * type1_tables |
| * |
| * @title: |
| * Type 1 Tables |
| * |
| * @abstract: |
| * Type~1-specific font tables. |
| * |
| * @description: |
| * This section contains the definition of Type~1-specific tables, |
| * including structures related to other PostScript font formats. |
| * |
| * @order: |
| * PS_FontInfoRec |
| * PS_FontInfo |
| * PS_PrivateRec |
| * PS_Private |
| * |
| * CID_FaceDictRec |
| * CID_FaceDict |
| * CID_FaceInfoRec |
| * CID_FaceInfo |
| * |
| * FT_Has_PS_Glyph_Names |
| * FT_Get_PS_Font_Info |
| * FT_Get_PS_Font_Private |
| * FT_Get_PS_Font_Value |
| * |
| * T1_Blend_Flags |
| * T1_EncodingType |
| * PS_Dict_Keys |
| * |
| */ |
| |
| |
| /* Note that we separate font data in PS_FontInfoRec and PS_PrivateRec */ |
| /* structures in order to support Multiple Master fonts. */ |
| |
| |
| /************************************************************************** |
| * |
| * @struct: |
| * PS_FontInfoRec |
| * |
| * @description: |
| * A structure used to model a Type~1 or Type~2 FontInfo dictionary. |
| * Note that for Multiple Master fonts, each instance has its own |
| * FontInfo dictionary. |
| */ |
| typedef struct PS_FontInfoRec_ |
| { |
| FT_String* version; |
| FT_String* notice; |
| FT_String* full_name; |
| FT_String* family_name; |
| FT_String* weight; |
| FT_Long italic_angle; |
| FT_Bool is_fixed_pitch; |
| FT_Short underline_position; |
| FT_UShort underline_thickness; |
| |
| } PS_FontInfoRec; |
| |
| |
| /************************************************************************** |
| * |
| * @struct: |
| * PS_FontInfo |
| * |
| * @description: |
| * A handle to a @PS_FontInfoRec structure. |
| */ |
| typedef struct PS_FontInfoRec_* PS_FontInfo; |
| |
| |
| /************************************************************************** |
| * |
| * @struct: |
| * T1_FontInfo |
| * |
| * @description: |
| * This type is equivalent to @PS_FontInfoRec. It is deprecated but kept |
| * to maintain source compatibility between various versions of FreeType. |
| */ |
| typedef PS_FontInfoRec T1_FontInfo; |
| |
| |
| /************************************************************************** |
| * |
| * @struct: |
| * PS_PrivateRec |
| * |
| * @description: |
| * A structure used to model a Type~1 or Type~2 private dictionary. Note |
| * that for Multiple Master fonts, each instance has its own Private |
| * dictionary. |
| */ |
| typedef struct PS_PrivateRec_ |
| { |
| FT_Int unique_id; |
| FT_Int lenIV; |
| |
| FT_Byte num_blue_values; |
| FT_Byte num_other_blues; |
| FT_Byte num_family_blues; |
| FT_Byte num_family_other_blues; |
| |
| FT_Short blue_values[14]; |
| FT_Short other_blues[10]; |
| |
| FT_Short family_blues [14]; |
| FT_Short family_other_blues[10]; |
| |
| FT_Fixed blue_scale; |
| FT_Int blue_shift; |
| FT_Int blue_fuzz; |
| |
| FT_UShort standard_width[1]; |
| FT_UShort standard_height[1]; |
| |
| FT_Byte num_snap_widths; |
| FT_Byte num_snap_heights; |
| FT_Bool force_bold; |
| FT_Bool round_stem_up; |
| |
| FT_Short snap_widths [13]; /* including std width */ |
| FT_Short snap_heights[13]; /* including std height */ |
| |
| FT_Fixed expansion_factor; |
| |
| FT_Long language_group; |
| FT_Long password; |
| |
| FT_Short min_feature[2]; |
| |
| } PS_PrivateRec; |
| |
| |
| /************************************************************************** |
| * |
| * @struct: |
| * PS_Private |
| * |
| * @description: |
| * A handle to a @PS_PrivateRec structure. |
| */ |
| typedef struct PS_PrivateRec_* PS_Private; |
| |
| |
| /************************************************************************** |
| * |
| * @struct: |
| * T1_Private |
| * |
| * @description: |
| * This type is equivalent to @PS_PrivateRec. It is deprecated but kept |
| * to maintain source compatibility between various versions of FreeType. |
| */ |
| typedef PS_PrivateRec T1_Private; |
| |
| |
| /************************************************************************** |
| * |
| * @enum: |
| * T1_Blend_Flags |
| * |
| * @description: |
| * A set of flags used to indicate which fields are present in a given |
| * blend dictionary (font info or private). Used to support Multiple |
| * Masters fonts. |
| * |
| * @values: |
| * T1_BLEND_UNDERLINE_POSITION :: |
| * T1_BLEND_UNDERLINE_THICKNESS :: |
| * T1_BLEND_ITALIC_ANGLE :: |
| * T1_BLEND_BLUE_VALUES :: |
| * T1_BLEND_OTHER_BLUES :: |
| * T1_BLEND_STANDARD_WIDTH :: |
| * T1_BLEND_STANDARD_HEIGHT :: |
| * T1_BLEND_STEM_SNAP_WIDTHS :: |
| * T1_BLEND_STEM_SNAP_HEIGHTS :: |
| * T1_BLEND_BLUE_SCALE :: |
| * T1_BLEND_BLUE_SHIFT :: |
| * T1_BLEND_FAMILY_BLUES :: |
| * T1_BLEND_FAMILY_OTHER_BLUES :: |
| * T1_BLEND_FORCE_BOLD :: |
| */ |
| typedef enum T1_Blend_Flags_ |
| { |
| /* required fields in a FontInfo blend dictionary */ |
| T1_BLEND_UNDERLINE_POSITION = 0, |
| T1_BLEND_UNDERLINE_THICKNESS, |
| T1_BLEND_ITALIC_ANGLE, |
| |
| /* required fields in a Private blend dictionary */ |
| T1_BLEND_BLUE_VALUES, |
| T1_BLEND_OTHER_BLUES, |
| T1_BLEND_STANDARD_WIDTH, |
| T1_BLEND_STANDARD_HEIGHT, |
| T1_BLEND_STEM_SNAP_WIDTHS, |
| T1_BLEND_STEM_SNAP_HEIGHTS, |
| T1_BLEND_BLUE_SCALE, |
| T1_BLEND_BLUE_SHIFT, |
| T1_BLEND_FAMILY_BLUES, |
| T1_BLEND_FAMILY_OTHER_BLUES, |
| T1_BLEND_FORCE_BOLD, |
| |
| T1_BLEND_MAX /* do not remove */ |
| |
| } T1_Blend_Flags; |
| |
| |
| /* these constants are deprecated; use the corresponding */ |
| /* `T1_Blend_Flags` values instead */ |
| #define t1_blend_underline_position T1_BLEND_UNDERLINE_POSITION |
| #define t1_blend_underline_thickness T1_BLEND_UNDERLINE_THICKNESS |
| #define t1_blend_italic_angle T1_BLEND_ITALIC_ANGLE |
| #define t1_blend_blue_values T1_BLEND_BLUE_VALUES |
| #define t1_blend_other_blues T1_BLEND_OTHER_BLUES |
| #define t1_blend_standard_widths T1_BLEND_STANDARD_WIDTH |
| #define t1_blend_standard_height T1_BLEND_STANDARD_HEIGHT |
| #define t1_blend_stem_snap_widths T1_BLEND_STEM_SNAP_WIDTHS |
| #define t1_blend_stem_snap_heights T1_BLEND_STEM_SNAP_HEIGHTS |
| #define t1_blend_blue_scale T1_BLEND_BLUE_SCALE |
| #define t1_blend_blue_shift T1_BLEND_BLUE_SHIFT |
| #define t1_blend_family_blues T1_BLEND_FAMILY_BLUES |
| #define t1_blend_family_other_blues T1_BLEND_FAMILY_OTHER_BLUES |
| #define t1_blend_force_bold T1_BLEND_FORCE_BOLD |
| #define t1_blend_max T1_BLEND_MAX |
| |
| /* */ |
| |
| |
| /* maximum number of Multiple Masters designs, as defined in the spec */ |
| #define T1_MAX_MM_DESIGNS 16 |
| |
| /* maximum number of Multiple Masters axes, as defined in the spec */ |
| #define T1_MAX_MM_AXIS 4 |
| |
| /* maximum number of elements in a design map */ |
| #define T1_MAX_MM_MAP_POINTS 20 |
| |
| |
| /* this structure is used to store the BlendDesignMap entry for an axis */ |
| typedef struct PS_DesignMap_ |
| { |
| FT_Byte num_points; |
| FT_Long* design_points; |
| FT_Fixed* blend_points; |
| |
| } PS_DesignMapRec, *PS_DesignMap; |
| |
| /* backward compatible definition */ |
| typedef PS_DesignMapRec T1_DesignMap; |
| |
| |
| typedef struct PS_BlendRec_ |
| { |
| FT_UInt num_designs; |
| FT_UInt num_axis; |
| |
| FT_String* axis_names[T1_MAX_MM_AXIS]; |
| FT_Fixed* design_pos[T1_MAX_MM_DESIGNS]; |
| PS_DesignMapRec design_map[T1_MAX_MM_AXIS]; |
| |
| FT_Fixed* weight_vector; |
| FT_Fixed* default_weight_vector; |
| |
| PS_FontInfo font_infos[T1_MAX_MM_DESIGNS + 1]; |
| PS_Private privates [T1_MAX_MM_DESIGNS + 1]; |
| |
| FT_ULong blend_bitflags; |
| |
| FT_BBox* bboxes [T1_MAX_MM_DESIGNS + 1]; |
| |
| /* since 2.3.0 */ |
| |
| /* undocumented, optional: the default design instance; */ |
| /* corresponds to default_weight_vector -- */ |
| /* num_default_design_vector == 0 means it is not present */ |
| /* in the font and associated metrics files */ |
| FT_UInt default_design_vector[T1_MAX_MM_DESIGNS]; |
| FT_UInt num_default_design_vector; |
| |
| } PS_BlendRec, *PS_Blend; |
| |
| |
| /* backward compatible definition */ |
| typedef PS_BlendRec T1_Blend; |
| |
| |
| /************************************************************************** |
| * |
| * @struct: |
| * CID_FaceDictRec |
| * |
| * @description: |
| * A structure used to represent data in a CID top-level dictionary. In |
| * most cases, they are part of the font's '/FDArray' array. Within a |
| * CID font file, such (internal) subfont dictionaries are enclosed by |
| * '%ADOBeginFontDict' and '%ADOEndFontDict' comments. |
| * |
| * Note that `CID_FaceDictRec` misses a field for the '/FontName' |
| * keyword, specifying the subfont's name (the top-level font name is |
| * given by the '/CIDFontName' keyword). This is an oversight, but it |
| * doesn't limit the 'cid' font module's functionality because FreeType |
| * neither needs this entry nor gives access to CID subfonts. |
| */ |
| typedef struct CID_FaceDictRec_ |
| { |
| PS_PrivateRec private_dict; |
| |
| FT_UInt len_buildchar; |
| FT_Fixed forcebold_threshold; |
| FT_Pos stroke_width; |
| FT_Fixed expansion_factor; /* this is a duplicate of */ |
| /* `private_dict->expansion_factor' */ |
| FT_Byte paint_type; |
| FT_Byte font_type; |
| FT_Matrix font_matrix; |
| FT_Vector font_offset; |
| |
| FT_UInt num_subrs; |
| FT_ULong subrmap_offset; |
| FT_Int sd_bytes; |
| |
| } CID_FaceDictRec; |
| |
| |
| /************************************************************************** |
| * |
| * @struct: |
| * CID_FaceDict |
| * |
| * @description: |
| * A handle to a @CID_FaceDictRec structure. |
| */ |
| typedef struct CID_FaceDictRec_* CID_FaceDict; |
| |
| |
| /************************************************************************** |
| * |
| * @struct: |
| * CID_FontDict |
| * |
| * @description: |
| * This type is equivalent to @CID_FaceDictRec. It is deprecated but |
| * kept to maintain source compatibility between various versions of |
| * FreeType. |
| */ |
| typedef CID_FaceDictRec CID_FontDict; |
| |
| |
| /************************************************************************** |
| * |
| * @struct: |
| * CID_FaceInfoRec |
| * |
| * @description: |
| * A structure used to represent CID Face information. |
| */ |
| typedef struct CID_FaceInfoRec_ |
| { |
| FT_String* cid_font_name; |
| FT_Fixed cid_version; |
| FT_Int cid_font_type; |
| |
| FT_String* registry; |
| FT_String* ordering; |
| FT_Int supplement; |
| |
| PS_FontInfoRec font_info; |
| FT_BBox font_bbox; |
| FT_ULong uid_base; |
| |
| FT_Int num_xuid; |
| FT_ULong xuid[16]; |
| |
| FT_ULong cidmap_offset; |
| FT_Int fd_bytes; |
| FT_Int gd_bytes; |
| FT_ULong cid_count; |
| |
| FT_Int num_dicts; |
| CID_FaceDict font_dicts; |
| |
| FT_ULong data_offset; |
| |
| } CID_FaceInfoRec; |
| |
| |
| /************************************************************************** |
| * |
| * @struct: |
| * CID_FaceInfo |
| * |
| * @description: |
| * A handle to a @CID_FaceInfoRec structure. |
| */ |
| typedef struct CID_FaceInfoRec_* CID_FaceInfo; |
| |
| |
| /************************************************************************** |
| * |
| * @struct: |
| * CID_Info |
| * |
| * @description: |
| * This type is equivalent to @CID_FaceInfoRec. It is deprecated but kept |
| * to maintain source compatibility between various versions of FreeType. |
| */ |
| typedef CID_FaceInfoRec CID_Info; |
| |
| |
| /************************************************************************** |
| * |
| * @function: |
| * FT_Has_PS_Glyph_Names |
| * |
| * @description: |
| * Return true if a given face provides reliable PostScript glyph names. |
| * This is similar to using the @FT_HAS_GLYPH_NAMES macro, except that |
| * certain fonts (mostly TrueType) contain incorrect glyph name tables. |
| * |
| * When this function returns true, the caller is sure that the glyph |
| * names returned by @FT_Get_Glyph_Name are reliable. |
| * |
| * @input: |
| * face :: |
| * face handle |
| * |
| * @return: |
| * Boolean. True if glyph names are reliable. |
| * |
| */ |
| FT_EXPORT( FT_Int ) |
| FT_Has_PS_Glyph_Names( FT_Face face ); |
| |
| |
| /************************************************************************** |
| * |
| * @function: |
| * FT_Get_PS_Font_Info |
| * |
| * @description: |
| * Retrieve the @PS_FontInfoRec structure corresponding to a given |
| * PostScript font. |
| * |
| * @input: |
| * face :: |
| * PostScript face handle. |
| * |
| * @output: |
| * afont_info :: |
| * Output font info structure pointer. |
| * |
| * @return: |
| * FreeType error code. 0~means success. |
| * |
| * @note: |
| * String pointers within the @PS_FontInfoRec structure are owned by the |
| * face and don't need to be freed by the caller. Missing entries in |
| * the font's FontInfo dictionary are represented by `NULL` pointers. |
| * |
| * If the font's format is not PostScript-based, this function will |
| * return the `FT_Err_Invalid_Argument` error code. |
| * |
| */ |
| FT_EXPORT( FT_Error ) |
| FT_Get_PS_Font_Info( FT_Face face, |
| PS_FontInfo afont_info ); |
| |
| |
| /************************************************************************** |
| * |
| * @function: |
| * FT_Get_PS_Font_Private |
| * |
| * @description: |
| * Retrieve the @PS_PrivateRec structure corresponding to a given |
| * PostScript font. |
| * |
| * @input: |
| * face :: |
| * PostScript face handle. |
| * |
| * @output: |
| * afont_private :: |
| * Output private dictionary structure pointer. |
| * |
| * @return: |
| * FreeType error code. 0~means success. |
| * |
| * @note: |
| * The string pointers within the @PS_PrivateRec structure are owned by |
| * the face and don't need to be freed by the caller. |
| * |
| * If the font's format is not PostScript-based, this function returns |
| * the `FT_Err_Invalid_Argument` error code. |
| * |
| */ |
| FT_EXPORT( FT_Error ) |
| FT_Get_PS_Font_Private( FT_Face face, |
| PS_Private afont_private ); |
| |
| |
| /************************************************************************** |
| * |
| * @enum: |
| * T1_EncodingType |
| * |
| * @description: |
| * An enumeration describing the 'Encoding' entry in a Type 1 dictionary. |
| * |
| * @values: |
| * T1_ENCODING_TYPE_NONE :: |
| * T1_ENCODING_TYPE_ARRAY :: |
| * T1_ENCODING_TYPE_STANDARD :: |
| * T1_ENCODING_TYPE_ISOLATIN1 :: |
| * T1_ENCODING_TYPE_EXPERT :: |
| * |
| * @since: |
| * 2.4.8 |
| */ |
| typedef enum T1_EncodingType_ |
| { |
| T1_ENCODING_TYPE_NONE = 0, |
| T1_ENCODING_TYPE_ARRAY, |
| T1_ENCODING_TYPE_STANDARD, |
| T1_ENCODING_TYPE_ISOLATIN1, |
| T1_ENCODING_TYPE_EXPERT |
| |
| } T1_EncodingType; |
| |
| |
| /************************************************************************** |
| * |
| * @enum: |
| * PS_Dict_Keys |
| * |
| * @description: |
| * An enumeration used in calls to @FT_Get_PS_Font_Value to identify the |
| * Type~1 dictionary entry to retrieve. |
| * |
| * @values: |
| * PS_DICT_FONT_TYPE :: |
| * PS_DICT_FONT_MATRIX :: |
| * PS_DICT_FONT_BBOX :: |
| * PS_DICT_PAINT_TYPE :: |
| * PS_DICT_FONT_NAME :: |
| * PS_DICT_UNIQUE_ID :: |
| * PS_DICT_NUM_CHAR_STRINGS :: |
| * PS_DICT_CHAR_STRING_KEY :: |
| * PS_DICT_CHAR_STRING :: |
| * PS_DICT_ENCODING_TYPE :: |
| * PS_DICT_ENCODING_ENTRY :: |
| * PS_DICT_NUM_SUBRS :: |
| * PS_DICT_SUBR :: |
| * PS_DICT_STD_HW :: |
| * PS_DICT_STD_VW :: |
| * PS_DICT_NUM_BLUE_VALUES :: |
| * PS_DICT_BLUE_VALUE :: |
| * PS_DICT_BLUE_FUZZ :: |
| * PS_DICT_NUM_OTHER_BLUES :: |
| * PS_DICT_OTHER_BLUE :: |
| * PS_DICT_NUM_FAMILY_BLUES :: |
| * PS_DICT_FAMILY_BLUE :: |
| * PS_DICT_NUM_FAMILY_OTHER_BLUES :: |
| * PS_DICT_FAMILY_OTHER_BLUE :: |
| * PS_DICT_BLUE_SCALE :: |
| * PS_DICT_BLUE_SHIFT :: |
| * PS_DICT_NUM_STEM_SNAP_H :: |
| * PS_DICT_STEM_SNAP_H :: |
| * PS_DICT_NUM_STEM_SNAP_V :: |
| * PS_DICT_STEM_SNAP_V :: |
| * PS_DICT_FORCE_BOLD :: |
| * PS_DICT_RND_STEM_UP :: |
| * PS_DICT_MIN_FEATURE :: |
| * PS_DICT_LEN_IV :: |
| * PS_DICT_PASSWORD :: |
| * PS_DICT_LANGUAGE_GROUP :: |
| * PS_DICT_VERSION :: |
| * PS_DICT_NOTICE :: |
| * PS_DICT_FULL_NAME :: |
| * PS_DICT_FAMILY_NAME :: |
| * PS_DICT_WEIGHT :: |
| * PS_DICT_IS_FIXED_PITCH :: |
| * PS_DICT_UNDERLINE_POSITION :: |
| * PS_DICT_UNDERLINE_THICKNESS :: |
| * PS_DICT_FS_TYPE :: |
| * PS_DICT_ITALIC_ANGLE :: |
| * |
| * @since: |
| * 2.4.8 |
| */ |
| typedef enum PS_Dict_Keys_ |
| { |
| /* conventionally in the font dictionary */ |
| PS_DICT_FONT_TYPE, /* FT_Byte */ |
| PS_DICT_FONT_MATRIX, /* FT_Fixed */ |
| PS_DICT_FONT_BBOX, /* FT_Fixed */ |
| PS_DICT_PAINT_TYPE, /* FT_Byte */ |
| PS_DICT_FONT_NAME, /* FT_String* */ |
| PS_DICT_UNIQUE_ID, /* FT_Int */ |
| PS_DICT_NUM_CHAR_STRINGS, /* FT_Int */ |
| PS_DICT_CHAR_STRING_KEY, /* FT_String* */ |
| PS_DICT_CHAR_STRING, /* FT_String* */ |
| PS_DICT_ENCODING_TYPE, /* T1_EncodingType */ |
| PS_DICT_ENCODING_ENTRY, /* FT_String* */ |
| |
| /* conventionally in the font Private dictionary */ |
| PS_DICT_NUM_SUBRS, /* FT_Int */ |
| PS_DICT_SUBR, /* FT_String* */ |
| PS_DICT_STD_HW, /* FT_UShort */ |
| PS_DICT_STD_VW, /* FT_UShort */ |
| PS_DICT_NUM_BLUE_VALUES, /* FT_Byte */ |
| PS_DICT_BLUE_VALUE, /* FT_Short */ |
| PS_DICT_BLUE_FUZZ, /* FT_Int */ |
| PS_DICT_NUM_OTHER_BLUES, /* FT_Byte */ |
| PS_DICT_OTHER_BLUE, /* FT_Short */ |
| PS_DICT_NUM_FAMILY_BLUES, /* FT_Byte */ |
| PS_DICT_FAMILY_BLUE, /* FT_Short */ |
| PS_DICT_NUM_FAMILY_OTHER_BLUES, /* FT_Byte */ |
| PS_DICT_FAMILY_OTHER_BLUE, /* FT_Short */ |
| PS_DICT_BLUE_SCALE, /* FT_Fixed */ |
| PS_DICT_BLUE_SHIFT, /* FT_Int */ |
| PS_DICT_NUM_STEM_SNAP_H, /* FT_Byte */ |
| PS_DICT_STEM_SNAP_H, /* FT_Short */ |
| PS_DICT_NUM_STEM_SNAP_V, /* FT_Byte */ |
| PS_DICT_STEM_SNAP_V, /* FT_Short */ |
| PS_DICT_FORCE_BOLD, /* FT_Bool */ |
| PS_DICT_RND_STEM_UP, /* FT_Bool */ |
| PS_DICT_MIN_FEATURE, /* FT_Short */ |
| PS_DICT_LEN_IV, /* FT_Int */ |
| PS_DICT_PASSWORD, /* FT_Long */ |
| PS_DICT_LANGUAGE_GROUP, /* FT_Long */ |
| |
| /* conventionally in the font FontInfo dictionary */ |
| PS_DICT_VERSION, /* FT_String* */ |
| PS_DICT_NOTICE, /* FT_String* */ |
| PS_DICT_FULL_NAME, /* FT_String* */ |
| PS_DICT_FAMILY_NAME, /* FT_String* */ |
| PS_DICT_WEIGHT, /* FT_String* */ |
| PS_DICT_IS_FIXED_PITCH, /* FT_Bool */ |
| PS_DICT_UNDERLINE_POSITION, /* FT_Short */ |
| PS_DICT_UNDERLINE_THICKNESS, /* FT_UShort */ |
| PS_DICT_FS_TYPE, /* FT_UShort */ |
| PS_DICT_ITALIC_ANGLE, /* FT_Long */ |
| |
| PS_DICT_MAX = PS_DICT_ITALIC_ANGLE |
| |
| } PS_Dict_Keys; |
| |
| |
| /************************************************************************** |
| * |
| * @function: |
| * FT_Get_PS_Font_Value |
| * |
| * @description: |
| * Retrieve the value for the supplied key from a PostScript font. |
| * |
| * @input: |
| * face :: |
| * PostScript face handle. |
| * |
| * key :: |
| * An enumeration value representing the dictionary key to retrieve. |
| * |
| * idx :: |
| * For array values, this specifies the index to be returned. |
| * |
| * value :: |
| * A pointer to memory into which to write the value. |
| * |
| * valen_len :: |
| * The size, in bytes, of the memory supplied for the value. |
| * |
| * @output: |
| * value :: |
| * The value matching the above key, if it exists. |
| * |
| * @return: |
| * The amount of memory (in bytes) required to hold the requested value |
| * (if it exists, -1 otherwise). |
| * |
| * @note: |
| * The values returned are not pointers into the internal structures of |
| * the face, but are 'fresh' copies, so that the memory containing them |
| * belongs to the calling application. This also enforces the |
| * 'read-only' nature of these values, i.e., this function cannot be |
| * used to manipulate the face. |
| * |
| * `value` is a void pointer because the values returned can be of |
| * various types. |
| * |
| * If either `value` is `NULL` or `value_len` is too small, just the |
| * required memory size for the requested entry is returned. |
| * |
| * The `idx` parameter is used, not only to retrieve elements of, for |
| * example, the FontMatrix or FontBBox, but also to retrieve name keys |
| * from the CharStrings dictionary, and the charstrings themselves. It |
| * is ignored for atomic values. |
| * |
| * `PS_DICT_BLUE_SCALE` returns a value that is scaled up by 1000. To |
| * get the value as in the font stream, you need to divide by 65536000.0 |
| * (to remove the FT_Fixed scale, and the x1000 scale). |
| * |
| * IMPORTANT: Only key/value pairs read by the FreeType interpreter can |
| * be retrieved. So, for example, PostScript procedures such as NP, ND, |
| * and RD are not available. Arbitrary keys are, obviously, not be |
| * available either. |
| * |
| * If the font's format is not PostScript-based, this function returns |
| * the `FT_Err_Invalid_Argument` error code. |
| * |
| * @since: |
| * 2.4.8 |
| * |
| */ |
| FT_EXPORT( FT_Long ) |
| FT_Get_PS_Font_Value( FT_Face face, |
| PS_Dict_Keys key, |
| FT_UInt idx, |
| void *value, |
| FT_Long value_len ); |
| |
| /* */ |
| |
| FT_END_HEADER |
| |
| #endif /* T1TABLES_H_ */ |
| |
| |
| /* END */ |
