261 lines
8.0 KiB
C
261 lines
8.0 KiB
C
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/****************************************************************************
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*
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* t1types.h
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*
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* Basic Type1/Type2 type definitions and interface (specification
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* only).
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*
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* Copyright (C) 1996-2020 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 T1TYPES_H_
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#define T1TYPES_H_
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#include <ft2build.h>
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#include FT_TYPE1_TABLES_H
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#include FT_INTERNAL_POSTSCRIPT_HINTS_H
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#include FT_INTERNAL_SERVICE_H
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#include FT_INTERNAL_HASH_H
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#include FT_SERVICE_POSTSCRIPT_CMAPS_H
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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 TYPE1/TYPE2 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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* T1_EncodingRec
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*
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* @description:
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* A structure modeling a custom encoding.
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*
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* @fields:
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* num_chars ::
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* The number of character codes in the encoding. Usually 256.
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*
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* code_first ::
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* The lowest valid character code in the encoding.
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*
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* code_last ::
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* The highest valid character code in the encoding + 1. When equal to
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* code_first there are no valid character codes.
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*
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* char_index ::
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* An array of corresponding glyph indices.
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*
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* char_name ::
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* An array of corresponding glyph names.
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*/
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typedef struct T1_EncodingRecRec_
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{
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FT_Int num_chars;
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FT_Int code_first;
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FT_Int code_last;
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FT_UShort* char_index;
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const FT_String** char_name;
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} T1_EncodingRec, *T1_Encoding;
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/* used to hold extra data of PS_FontInfoRec that
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* cannot be stored in the publicly defined structure.
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*
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* Note these can't be blended with multiple-masters.
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*/
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typedef struct PS_FontExtraRec_
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{
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FT_UShort fs_type;
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} PS_FontExtraRec;
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typedef struct T1_FontRec_
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{
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PS_FontInfoRec font_info; /* font info dictionary */
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PS_FontExtraRec font_extra; /* font info extra fields */
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PS_PrivateRec private_dict; /* private dictionary */
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FT_String* font_name; /* top-level dictionary */
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T1_EncodingType encoding_type;
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T1_EncodingRec encoding;
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FT_Byte* subrs_block;
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FT_Byte* charstrings_block;
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FT_Byte* glyph_names_block;
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FT_Int num_subrs;
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FT_Byte** subrs;
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FT_UInt* subrs_len;
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FT_Hash subrs_hash;
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FT_Int num_glyphs;
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FT_String** glyph_names; /* array of glyph names */
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FT_Byte** charstrings; /* array of glyph charstrings */
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FT_UInt* charstrings_len;
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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_BBox font_bbox;
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FT_Long font_id;
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FT_Fixed stroke_width;
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} T1_FontRec, *T1_Font;
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typedef struct CID_SubrsRec_
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{
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FT_Int num_subrs;
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FT_Byte** code;
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} CID_SubrsRec, *CID_Subrs;
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/*** ***/
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/*** ***/
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/*** AFM FONT INFORMATION STRUCTURES ***/
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/*** ***/
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/*** ***/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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typedef struct AFM_TrackKernRec_
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{
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FT_Int degree;
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FT_Fixed min_ptsize;
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FT_Fixed min_kern;
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FT_Fixed max_ptsize;
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FT_Fixed max_kern;
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} AFM_TrackKernRec, *AFM_TrackKern;
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typedef struct AFM_KernPairRec_
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{
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FT_UInt index1;
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FT_UInt index2;
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FT_Int x;
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FT_Int y;
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} AFM_KernPairRec, *AFM_KernPair;
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typedef struct AFM_FontInfoRec_
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{
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FT_Bool IsCIDFont;
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FT_BBox FontBBox;
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FT_Fixed Ascender;
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FT_Fixed Descender;
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AFM_TrackKern TrackKerns; /* free if non-NULL */
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FT_UInt NumTrackKern;
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AFM_KernPair KernPairs; /* free if non-NULL */
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FT_UInt NumKernPair;
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} AFM_FontInfoRec, *AFM_FontInfo;
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/*** ***/
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/*** ***/
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/*** ORIGINAL T1_FACE CLASS DEFINITION ***/
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/*** ***/
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/*** ***/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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typedef struct T1_FaceRec_* T1_Face;
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typedef struct CID_FaceRec_* CID_Face;
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typedef struct T1_FaceRec_
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{
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FT_FaceRec root;
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T1_FontRec type1;
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const void* psnames;
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const void* psaux;
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const void* afm_data;
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FT_CharMapRec charmaprecs[2];
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FT_CharMap charmaps[2];
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/* support for Multiple Masters fonts */
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PS_Blend blend;
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/* undocumented, optional: indices of subroutines that express */
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/* the NormalizeDesignVector and the ConvertDesignVector procedure, */
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/* respectively, as Type 2 charstrings; -1 if keywords not present */
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FT_Int ndv_idx;
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FT_Int cdv_idx;
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/* undocumented, optional: has the same meaning as len_buildchar */
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/* for Type 2 fonts; manipulated by othersubrs 19, 24, and 25 */
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FT_UInt len_buildchar;
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FT_Long* buildchar;
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/* since version 2.1 - interface to PostScript hinter */
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const void* pshinter;
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} T1_FaceRec;
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typedef struct CID_FaceRec_
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{
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FT_FaceRec root;
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void* psnames;
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void* psaux;
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CID_FaceInfoRec cid;
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PS_FontExtraRec font_extra;
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#if 0
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void* afm_data;
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#endif
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CID_Subrs subrs;
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/* since version 2.1 - interface to PostScript hinter */
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void* pshinter;
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/* since version 2.1.8, but was originally positioned after `afm_data' */
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FT_Byte* binary_data; /* used if hex data has been converted */
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FT_Stream cid_stream;
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} CID_FaceRec;
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FT_END_HEADER
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#endif /* T1TYPES_H_ */
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/* END */
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