projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| cabec872 RR |
1 | /***************************************************************************/ |
| 2 | /* */ | |
| 3 | /* cidparse.h */ | |
| 4 | /* */ | |
| 5 | /* CID-keyed Type1 parser (specification). */ | |
| 6 | /* */ | |
| 7 | /* Copyright 1996-2000 by */ | |
| 8 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ | |
| 9 | /* */ | |
| 10 | /* This file is part of the FreeType project, and may only be used, */ | |
| 11 | /* modified, and distributed under the terms of the FreeType project */ | |
| 12 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ | |
| 13 | /* this file you indicate that you have read the license and */ | |
| 14 | /* understand and accept it fully. */ | |
| 15 | /* */ | |
| 16 | /***************************************************************************/ | |
| 17 | ||
| 18 | ||
| 19 | #ifndef CIDPARSE_H | |
| 20 | #define CIDPARSE_H | |
| 21 | ||
| 22 | #include <freetype/internal/t1types.h> | |
| 23 | ||
| 24 | ||
| 25 | #ifdef __cplusplus | |
| 26 | extern "C" { | |
| 27 | #endif | |
| 28 | ||
| 29 | ||
| 30 | #if 0 | |
| 31 | ||
| 32 | /*************************************************************************/ | |
| 33 | /* */ | |
| 34 | /* <Struct> */ | |
| 35 | /* CID_Table */ | |
| 36 | /* */ | |
| 37 | /* <Description> */ | |
| 38 | /* A CID_Table is a simple object used to store an array of objects */ | |
| 39 | /* in a single memory block. */ | |
| 40 | /* */ | |
| 41 | /* <Fields> */ | |
| 42 | /* block :: The address in memory of the growheap's block. This */ | |
| 43 | /* can change between two object adds, due to the use */ | |
| 44 | /* of `realloc()'. */ | |
| 45 | /* */ | |
| 46 | /* cursor :: The current top of the growheap within its block. */ | |
| 47 | /* */ | |
| 48 | /* capacity :: The current size of the heap block. Increments by */ | |
| 49 | /* blocks of 1 kByte. */ | |
| 50 | /* */ | |
| 51 | /* init :: A boolean. Set when the table has been initialized */ | |
| 52 | /* (the table user should set this field). */ | |
| 53 | /* */ | |
| 54 | /* max_elems :: The maximal number of elements in the table. */ | |
| 55 | /* */ | |
| 56 | /* num_elems :: The current number of elements (in use) in the table. */ | |
| 57 | /* */ | |
| 58 | /* elements :: A table of element addresses within the block. */ | |
| 59 | /* */ | |
| 60 | /* lengths :: A table of element sizes within the block. */ | |
| 61 | /* */ | |
| 62 | /* memory :: The memory object used for memory operations */ | |
| 63 | /* (allocation resp. reallocation). */ | |
| 64 | /* */ | |
| 65 | typedef struct CID_Table_ | |
| 66 | { | |
| 67 | FT_Byte* block; /* current memory block */ | |
| 68 | FT_Int cursor; /* current cursor in memory block */ | |
| 69 | FT_Int capacity; /* current size of memory block */ | |
| 70 | FT_Long init; | |
| 71 | ||
| 72 | FT_Int max_elems; | |
| 73 | FT_Int num_elems; | |
| 74 | FT_Byte** elements; /* addresses of table elements */ | |
| 75 | FT_Int* lengths; /* lengths of table elements */ | |
| 76 | ||
| 77 | FT_Memory memory; | |
| 78 | ||
| 79 | } CID_Table; | |
| 80 | ||
| 81 | ||
| 82 | LOCAL_DEF | |
| 83 | FT_Error CID_New_Table( CID_Table* table, | |
| 84 | FT_Int count, | |
| 85 | CID_Memory memory ); | |
| 86 | ||
| 87 | LOCAL_DEF | |
| 88 | FT_Error CID_Add_Table( CID_Table* table, | |
| 89 | FT_Int index, | |
| 90 | void* object, | |
| 91 | FT_Int length ); | |
| 92 | ||
| 93 | LOCAL_DEF | |
| 94 | void CID_Release_Table( CID_Table* table ); | |
| 95 | ||
| 96 | #endif /* 0 */ | |
| 97 | ||
| 98 | ||
| 99 | /*************************************************************************/ | |
| 100 | /* */ | |
| 101 | /* <Struct> */ | |
| 102 | /* CID_Parser */ | |
| 103 | /* */ | |
| 104 | /* <Description> */ | |
| 105 | /* A CID_Parser is an object used to parse a Type 1 fonts very */ | |
| 106 | /* quickly. */ | |
| 107 | /* */ | |
| 108 | /* <Fields> */ | |
| 109 | /* stream :: The current input stream. */ | |
| 110 | /* */ | |
| 111 | /* memory :: The current memory object. */ | |
| 112 | /* */ | |
| 113 | /* postscript :: A pointer to the data to be parsed. */ | |
| 114 | /* */ | |
| 115 | /* postscript_len :: The length of the data to be parsed. */ | |
| 116 | /* */ | |
| 117 | /* data_offset :: The start position of the binary data (i.e., the */ | |
| 118 | /* end of the data to be parsed. */ | |
| 119 | /* */ | |
| 120 | /* cursor :: The current parser cursor. */ | |
| 121 | /* */ | |
| 122 | /* limit :: The current parser limit (i.e., the first byte */ | |
| 123 | /* after the current dictionary). */ | |
| 124 | /* */ | |
| 125 | /* error :: The current parsing error. */ | |
| 126 | /* */ | |
| 127 | /* cid :: A structure which holds the information about */ | |
| 128 | /* the current font. */ | |
| 129 | /* */ | |
| 130 | /* num_dict :: The number of font dictionaries. */ | |
| 131 | /* */ | |
| 132 | typedef struct CID_Parser_ | |
| 133 | { | |
| 134 | FT_Stream stream; | |
| 135 | FT_Memory memory; | |
| 136 | ||
| 137 | FT_Byte* postscript; | |
| 138 | FT_Int postscript_len; | |
| 139 | ||
| 140 | FT_ULong data_offset; | |
| 141 | ||
| 142 | FT_Byte* cursor; | |
| 143 | FT_Byte* limit; | |
| 144 | FT_Error error; | |
| 145 | ||
| 146 | CID_Info* cid; | |
| 147 | FT_Int num_dict; | |
| 148 | ||
| 149 | } CID_Parser; | |
| 150 | ||
| 151 | ||
| 152 | LOCAL_DEF | |
| 153 | FT_Error CID_New_Parser( CID_Parser* parser, | |
| 154 | FT_Stream stream, | |
| 155 | FT_Memory memory ); | |
| 156 | ||
| 157 | LOCAL_DEF | |
| 158 | void CID_Done_Parser( CID_Parser* parser ); | |
| 159 | ||
| 160 | ||
| 161 | /*************************************************************************/ | |
| 162 | /* */ | |
| 163 | /* PARSING ROUTINES */ | |
| 164 | /* */ | |
| 165 | /*************************************************************************/ | |
| 166 | ||
| 167 | LOCAL_DEF | |
| 168 | FT_Long CID_ToInt( CID_Parser* parser ); | |
| 169 | ||
| 170 | LOCAL_DEF | |
| 171 | FT_Int CID_ToCoordArray( CID_Parser* parser, | |
| 172 | FT_Int max_coords, | |
| 173 | FT_Short* coords ); | |
| 174 | ||
| 175 | LOCAL_DEF | |
| 176 | FT_Int CID_ToFixedArray( CID_Parser* parser, | |
| 177 | FT_Int max_values, | |
| 178 | FT_Fixed* values, | |
| 179 | FT_Int power_ten ); | |
| 180 | ||
| 181 | LOCAL_DEF | |
| 182 | void CID_Skip_Spaces( CID_Parser* parser ); | |
| 183 | ||
| 184 | ||
| 185 | /* simple enumeration type used to identify token types */ | |
| 186 | typedef enum CID_Token_Type_ | |
| 187 | { | |
| 188 | t1_token_none = 0, | |
| 189 | t1_token_any, | |
| 190 | t1_token_string, | |
| 191 | t1_token_array, | |
| 192 | ||
| 193 | /* do not remove */ | |
| 194 | t1_token_max | |
| 195 | ||
| 196 | } CID_Token_Type; | |
| 197 | ||
| 198 | ||
| 199 | /* a simple structure used to identify tokens */ | |
| 200 | typedef struct CID_Token_Rec_ | |
| 201 | { | |
| 202 | FT_Byte* start; /* first character of token in input stream */ | |
| 203 | FT_Byte* limit; /* first character after the token */ | |
| 204 | CID_Token_Type type; /* type of token */ | |
| 205 | ||
| 206 | } CID_Token_Rec; | |
| 207 | ||
| 208 | ||
| 209 | LOCAL_DEF | |
| 210 | void CID_ToToken( CID_Parser* parser, | |
| 211 | CID_Token_Rec* token ); | |
| 212 | ||
| 213 | ||
| 214 | /* enumeration type used to identify object fields */ | |
| 215 | typedef enum CID_Field_Type_ | |
| 216 | { | |
| 217 | t1_field_none = 0, | |
| 218 | t1_field_bool, | |
| 219 | t1_field_integer, | |
| 220 | t1_field_fixed, | |
| 221 | t1_field_string, | |
| 222 | t1_field_integer_array, | |
| 223 | t1_field_fixed_array, | |
| 224 | t1_field_callback, | |
| 225 | ||
| 226 | /* do not remove */ | |
| 227 | t1_field_max | |
| 228 | ||
| 229 | } CID_Field_Type; | |
| 230 | ||
| 231 | typedef enum CID_Field_Location_ | |
| 232 | { | |
| 233 | t1_field_cid_info, | |
| 234 | t1_field_font_dict, | |
| 235 | t1_field_font_info, | |
| 236 | t1_field_private, | |
| 237 | ||
| 238 | /* do not remove */ | |
| 239 | t1_field_location_max | |
| 240 | ||
| 241 | } CID_Field_Location; | |
| 242 | ||
| 243 | ||
| 244 | typedef FT_Error (*CID_Field_Parser)( CID_Face face, | |
| 245 | CID_Parser* parser ); | |
| 246 | ||
| 247 | /* structure type used to model object fields */ | |
| 248 | typedef struct CID_Field_Rec_ | |
| 249 | { | |
| 250 | const char* ident; /* field identifier */ | |
| 251 | CID_Field_Location location; | |
| 252 | CID_Field_Type type; /* type of field */ | |
| 253 | CID_Field_Parser reader; | |
| 254 | FT_UInt offset; /* offset of field in object */ | |
| 255 | FT_UInt size; /* size of field in bytes */ | |
| 256 | FT_UInt array_max; /* maximal number of elements for */ | |
| 257 | /* array */ | |
| 258 | FT_UInt count_offset; /* offset of element count for */ | |
| 259 | /* arrays */ | |
| 260 | } CID_Field_Rec; | |
| 261 | ||
| 262 | ||
| 263 | #define CID_FIELD_REF( s, f ) ( ((s*)0)->f ) | |
| 264 | ||
| 265 | #define CID_NEW_SIMPLE_FIELD( _ident, _type, _fname ) \ | |
| 266 | { \ | |
| 267 | _ident, T1CODE, _type, \ | |
| 268 | 0, \ | |
| 269 | (FT_UInt)(char*)&CID_FIELD_REF( T1TYPE, _fname ), \ | |
| 270 | sizeof ( CID_FIELD_REF( T1TYPE, _fname ) ), \ | |
| 271 | 0, 0 \ | |
| 272 | }, | |
| 273 | ||
| 274 | #define CID_NEW_CALLBACK_FIELD( _ident, _reader ) \ | |
| 275 | { \ | |
| 276 | _ident, T1CODE, t1_field_callback, \ | |
| 277 | _reader, \ | |
| 278 | 0, 0, \ | |
| 279 | 0, 0 \ | |
| 280 | }, | |
| 281 | ||
| 282 | #define CID_NEW_TABLE_FIELD( _ident, _type, _fname, _max ) \ | |
| 283 | { \ | |
| 284 | _ident, T1CODE, _type, \ | |
| 285 | 0, \ | |
| 286 | (FT_UInt)(char*)&CID_FIELD_REF( T1TYPE, _fname ), \ | |
| 287 | sizeof ( CID_FIELD_REF( T1TYPE, _fname )[0] ), \ | |
| 288 | _max, \ | |
| 289 | (FT_UInt)(char*)&CID_FIELD_REF( T1TYPE, num_ ## _fname ) \ | |
| 290 | }, | |
| 291 | ||
| 292 | #define CID_NEW_TABLE_FIELD2( _ident, _type, _fname, _max ) \ | |
| 293 | { \ | |
| 294 | _ident, T1CODE, _type, \ | |
| 295 | 0, \ | |
| 296 | (FT_UInt)(char*)&CID_FIELD_REF( T1TYPE, _fname ), \ | |
| 297 | sizeof ( CID_FIELD_REF( T1TYPE, _fname )[0] ), \ | |
| 298 | _max, 0 \ | |
| 299 | }, | |
| 300 | ||
| 301 | ||
| 302 | #define CID_FIELD_BOOL( _ident, _fname ) \ | |
| 303 | CID_NEW_SIMPLE_FIELD( _ident, t1_field_bool, _fname ) | |
| 304 | ||
| 305 | #define CID_FIELD_NUM( _ident, _fname ) \ | |
| 306 | CID_NEW_SIMPLE_FIELD( _ident, t1_field_integer, _fname ) | |
| 307 | ||
| 308 | #define CID_FIELD_FIXED( _ident, _fname ) \ | |
| 309 | CID_NEW_SIMPLE_FIELD( _ident, t1_field_fixed, _fname ) | |
| 310 | ||
| 311 | #define CID_FIELD_STRING( _ident, _fname ) \ | |
| 312 | CID_NEW_SIMPLE_FIELD( _ident, t1_field_string, _fname ) | |
| 313 | ||
| 314 | #define CID_FIELD_NUM_TABLE( _ident, _fname, _fmax ) \ | |
| 315 | CID_NEW_TABLE_FIELD( _ident, t1_field_integer_array, \ | |
| 316 | _fname, _fmax ) | |
| 317 | ||
| 318 | #define CID_FIELD_FIXED_TABLE( _ident, _fname, _fmax ) \ | |
| 319 | CID_NEW_TABLE_FIELD( _ident, t1_field_fixed_array, \ | |
| 320 | _fname, _fmax ) | |
| 321 | ||
| 322 | #define CID_FIELD_NUM_TABLE2( _ident, _fname, _fmax ) \ | |
| 323 | CID_NEW_TABLE_FIELD2( _ident, t1_field_integer_array, \ | |
| 324 | _fname, _fmax ) | |
| 325 | ||
| 326 | #define CID_FIELD_FIXED_TABLE2( _ident, _fname, _fmax ) \ | |
| 327 | CID_NEW_TABLE_FIELD2( _ident, t1_field_fixed_array, \ | |
| 328 | _fname, _fmax ) | |
| 329 | ||
| 330 | #define CID_FIELD_CALLBACK( _ident, _name ) \ | |
| 331 | CID_NEW_CALLBACK_FIELD( _ident, parse_ ## _name ) | |
| 332 | ||
| 333 | ||
| 334 | LOCAL_DEF | |
| 335 | FT_Error CID_Load_Field( CID_Parser* parser, | |
| 336 | const CID_Field_Rec* field, | |
| 337 | void* object ); | |
| 338 | ||
| 339 | LOCAL_DEF | |
| 340 | FT_Error CID_Load_Field_Table( CID_Parser* parser, | |
| 341 | const CID_Field_Rec* field, | |
| 342 | void* object ); | |
| 343 | ||
| 344 | ||
| 345 | #ifdef __cplusplus | |
| 346 | } | |
| 347 | #endif | |
| 348 | ||
| 349 | ||
| 350 | #endif /* CIDPARSE_H */ | |
| 351 | ||
| 352 | ||
| 353 | /* END */ |