1 /**************************************************************************** 2 * 3 * t1types.h 4 * 5 * Basic Type1/Type2 type definitions and interface (specification 6 * only). 7 * 8 * Copyright (C) 1996-2020 by 9 * David Turner, Robert Wilhelm, and Werner Lemberg. 10 * 11 * This file is part of the FreeType project, and may only be used, 12 * modified, and distributed under the terms of the FreeType project 13 * license, LICENSE.TXT. By continuing to use, modify, or distribute 14 * this file you indicate that you have read the license and 15 * understand and accept it fully. 16 * 17 */ 18 19 20 #ifndef T1TYPES_H_ 21 #define T1TYPES_H_ 22 23 24 #include <ft2build.h> 25 #include FT_TYPE1_TABLES_H 26 #include FT_INTERNAL_POSTSCRIPT_HINTS_H 27 #include FT_INTERNAL_SERVICE_H 28 #include FT_INTERNAL_HASH_H 29 #include FT_SERVICE_POSTSCRIPT_CMAPS_H 30 31 32 FT_BEGIN_HEADER 33 34 35 /*************************************************************************/ 36 /*************************************************************************/ 37 /*************************************************************************/ 38 /*** ***/ 39 /*** ***/ 40 /*** REQUIRED TYPE1/TYPE2 TABLES DEFINITIONS ***/ 41 /*** ***/ 42 /*** ***/ 43 /*************************************************************************/ 44 /*************************************************************************/ 45 /*************************************************************************/ 46 47 48 /************************************************************************** 49 * 50 * @struct: 51 * T1_EncodingRec 52 * 53 * @description: 54 * A structure modeling a custom encoding. 55 * 56 * @fields: 57 * num_chars :: 58 * The number of character codes in the encoding. Usually 256. 59 * 60 * code_first :: 61 * The lowest valid character code in the encoding. 62 * 63 * code_last :: 64 * The highest valid character code in the encoding + 1. When equal to 65 * code_first there are no valid character codes. 66 * 67 * char_index :: 68 * An array of corresponding glyph indices. 69 * 70 * char_name :: 71 * An array of corresponding glyph names. 72 */ 73 typedef struct T1_EncodingRecRec_ 74 { 75 FT_Int num_chars; 76 FT_Int code_first; 77 FT_Int code_last; 78 79 FT_UShort* char_index; 80 const FT_String** char_name; 81 82 } T1_EncodingRec, *T1_Encoding; 83 84 85 /* used to hold extra data of PS_FontInfoRec that 86 * cannot be stored in the publicly defined structure. 87 * 88 * Note these can't be blended with multiple-masters. 89 */ 90 typedef struct PS_FontExtraRec_ 91 { 92 FT_UShort fs_type; 93 94 } PS_FontExtraRec; 95 96 97 typedef struct T1_FontRec_ 98 { 99 PS_FontInfoRec font_info; /* font info dictionary */ 100 PS_FontExtraRec font_extra; /* font info extra fields */ 101 PS_PrivateRec private_dict; /* private dictionary */ 102 FT_String* font_name; /* top-level dictionary */ 103 104 T1_EncodingType encoding_type; 105 T1_EncodingRec encoding; 106 107 FT_Byte* subrs_block; 108 FT_Byte* charstrings_block; 109 FT_Byte* glyph_names_block; 110 111 FT_Int num_subrs; 112 FT_Byte** subrs; 113 FT_UInt* subrs_len; 114 FT_Hash subrs_hash; 115 116 FT_Int num_glyphs; 117 FT_String** glyph_names; /* array of glyph names */ 118 FT_Byte** charstrings; /* array of glyph charstrings */ 119 FT_UInt* charstrings_len; 120 121 FT_Byte paint_type; 122 FT_Byte font_type; 123 FT_Matrix font_matrix; 124 FT_Vector font_offset; 125 FT_BBox font_bbox; 126 FT_Long font_id; 127 128 FT_Fixed stroke_width; 129 130 } T1_FontRec, *T1_Font; 131 132 133 typedef struct CID_SubrsRec_ 134 { 135 FT_Int num_subrs; 136 FT_Byte** code; 137 138 } CID_SubrsRec, *CID_Subrs; 139 140 141 /*************************************************************************/ 142 /*************************************************************************/ 143 /*************************************************************************/ 144 /*** ***/ 145 /*** ***/ 146 /*** AFM FONT INFORMATION STRUCTURES ***/ 147 /*** ***/ 148 /*** ***/ 149 /*************************************************************************/ 150 /*************************************************************************/ 151 /*************************************************************************/ 152 153 typedef struct AFM_TrackKernRec_ 154 { 155 FT_Int degree; 156 FT_Fixed min_ptsize; 157 FT_Fixed min_kern; 158 FT_Fixed max_ptsize; 159 FT_Fixed max_kern; 160 161 } AFM_TrackKernRec, *AFM_TrackKern; 162 163 typedef struct AFM_KernPairRec_ 164 { 165 FT_UInt index1; 166 FT_UInt index2; 167 FT_Int x; 168 FT_Int y; 169 170 } AFM_KernPairRec, *AFM_KernPair; 171 172 typedef struct AFM_FontInfoRec_ 173 { 174 FT_Bool IsCIDFont; 175 FT_BBox FontBBox; 176 FT_Fixed Ascender; 177 FT_Fixed Descender; 178 AFM_TrackKern TrackKerns; /* free if non-NULL */ 179 FT_UInt NumTrackKern; 180 AFM_KernPair KernPairs; /* free if non-NULL */ 181 FT_UInt NumKernPair; 182 183 } AFM_FontInfoRec, *AFM_FontInfo; 184 185 186 /*************************************************************************/ 187 /*************************************************************************/ 188 /*************************************************************************/ 189 /*** ***/ 190 /*** ***/ 191 /*** ORIGINAL T1_FACE CLASS DEFINITION ***/ 192 /*** ***/ 193 /*** ***/ 194 /*************************************************************************/ 195 /*************************************************************************/ 196 /*************************************************************************/ 197 198 199 typedef struct T1_FaceRec_* T1_Face; 200 typedef struct CID_FaceRec_* CID_Face; 201 202 203 typedef struct T1_FaceRec_ 204 { 205 FT_FaceRec root; 206 T1_FontRec type1; 207 const void* psnames; 208 const void* psaux; 209 const void* afm_data; 210 FT_CharMapRec charmaprecs[2]; 211 FT_CharMap charmaps[2]; 212 213 /* support for Multiple Masters fonts */ 214 PS_Blend blend; 215 216 /* undocumented, optional: indices of subroutines that express */ 217 /* the NormalizeDesignVector and the ConvertDesignVector procedure, */ 218 /* respectively, as Type 2 charstrings; -1 if keywords not present */ 219 FT_Int ndv_idx; 220 FT_Int cdv_idx; 221 222 /* undocumented, optional: has the same meaning as len_buildchar */ 223 /* for Type 2 fonts; manipulated by othersubrs 19, 24, and 25 */ 224 FT_UInt len_buildchar; 225 FT_Long* buildchar; 226 227 /* since version 2.1 - interface to PostScript hinter */ 228 const void* pshinter; 229 230 } T1_FaceRec; 231 232 233 typedef struct CID_FaceRec_ 234 { 235 FT_FaceRec root; 236 void* psnames; 237 void* psaux; 238 CID_FaceInfoRec cid; 239 PS_FontExtraRec font_extra; 240 #if 0 241 void* afm_data; 242 #endif 243 CID_Subrs subrs; 244 245 /* since version 2.1 - interface to PostScript hinter */ 246 void* pshinter; 247 248 /* since version 2.1.8, but was originally positioned after `afm_data' */ 249 FT_Byte* binary_data; /* used if hex data has been converted */ 250 FT_Stream cid_stream; 251 252 } CID_FaceRec; 253 254 255 FT_END_HEADER 256 257 #endif /* T1TYPES_H_ */ 258 259 260 /* END */ 261