projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| cabec872 RR |
1 | /***************************************************************************/ |
| 2 | /* */ | |
| 3 | /* z1parse.h */ | |
| 4 | /* */ | |
| 5 | /* Experimental Type 1 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 Z1PARSE_H | |
| 20 | #define Z1PARSE_H | |
| 21 | ||
| 22 | #include <freetype/internal/t1types.h> | |
| 23 | ||
| 24 | #ifdef __cplusplus | |
| 25 | extern "C" { | |
| 26 | #endif | |
| 27 | ||
| 28 | ||
| 29 | /* simple enumeration type used to identify token types */ | |
| 30 | typedef enum Z1_Token_Type_ | |
| 31 | { | |
| 32 | t1_token_none = 0, | |
| 33 | t1_token_any, | |
| 34 | t1_token_string, | |
| 35 | t1_token_array, | |
| 36 | ||
| 37 | /* do not remove */ | |
| 38 | t1_token_max | |
| 39 | ||
| 40 | } Z1_Token_Type; | |
| 41 | ||
| 42 | ||
| 43 | /* a simple structure used to identify tokens */ | |
| 44 | typedef struct Z1_Token_Rec_ | |
| 45 | { | |
| 46 | FT_Byte* start; /* first character of token in input stream */ | |
| 47 | FT_Byte* limit; /* first character after the token */ | |
| 48 | Z1_Token_Type type; /* type of token.. */ | |
| 49 | ||
| 50 | } Z1_Token_Rec; | |
| 51 | ||
| 52 | ||
| 53 | /* enumeration type used to identify object fields */ | |
| 54 | typedef enum Z1_Field_Type_ | |
| 55 | { | |
| 56 | t1_field_none = 0, | |
| 57 | t1_field_bool, | |
| 58 | t1_field_integer, | |
| 59 | t1_field_fixed, | |
| 60 | t1_field_string, | |
| 61 | t1_field_integer_array, | |
| 62 | t1_field_fixed_array, | |
| 63 | ||
| 64 | /* do not remove */ | |
| 65 | t1_field_max | |
| 66 | ||
| 67 | } Z1_Field_Type; | |
| 68 | ||
| 69 | ||
| 70 | /* structure type used to model object fields */ | |
| 71 | typedef struct Z1_Field_Rec_ | |
| 72 | { | |
| 73 | Z1_Field_Type type; /* type of field */ | |
| 74 | FT_UInt offset; /* offset of field in object */ | |
| 75 | FT_UInt size; /* size of field in bytes */ | |
| 76 | FT_UInt array_max; /* maximum number of elements for array */ | |
| 77 | FT_UInt count_offset; /* offset of element count for arrays */ | |
| 78 | FT_Int flag_bit; /* bit number for field flag */ | |
| 79 | ||
| 80 | } Z1_Field_Rec; | |
| 81 | ||
| 82 | ||
| 83 | #define Z1_FIELD_REF( s, f ) ( ((s*)0)->f ) | |
| 84 | ||
| 85 | #define Z1_FIELD_BOOL( _ftype, _fname ) \ | |
| 86 | { \ | |
| 87 | t1_field_bool, \ | |
| 88 | (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ | |
| 89 | sizeof ( Z1_FIELD_REF( _ftype, _fname ) ), \ | |
| 90 | 0, 0, 0 \ | |
| 91 | } | |
| 92 | ||
| 93 | #define Z1_FIELD_NUM( _ftype, _fname ) \ | |
| 94 | { \ | |
| 95 | t1_field_integer, \ | |
| 96 | (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ | |
| 97 | sizeof ( Z1_FIELD_REF( _ftype, _fname ) ), \ | |
| 98 | 0, 0, 0 \ | |
| 99 | } | |
| 100 | ||
| 101 | #define Z1_FIELD_FIXED( _ftype, _fname, _power ) \ | |
| 102 | { \ | |
| 103 | t1_field_fixed, \ | |
| 104 | (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ | |
| 105 | sizeof ( Z1_FIELD_REF( _ftype, _fname ) ), \ | |
| 106 | 0, 0, 0 \ | |
| 107 | } | |
| 108 | ||
| 109 | #define Z1_FIELD_STRING( _ftype, _fname ) \ | |
| 110 | { \ | |
| 111 | t1_field_string, \ | |
| 112 | (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ | |
| 113 | sizeof ( Z1_FIELD_REF( _ftype, _fname ) ), \ | |
| 114 | 0, 0, 0 \ | |
| 115 | } | |
| 116 | ||
| 117 | #define Z1_FIELD_NUM_ARRAY( _ftype, _fname, _fcount, _fmax ) \ | |
| 118 | { \ | |
| 119 | t1_field_integer, \ | |
| 120 | (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ | |
| 121 | sizeof ( Z1_FIELD_REF( _ftype, _fname )[0] ), \ | |
| 122 | _fmax, \ | |
| 123 | (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fcount ), \ | |
| 124 | 0 \ | |
| 125 | } | |
| 126 | ||
| 127 | #define Z1_FIELD_FIXED_ARRAY( _ftype, _fname, _fcount, _fmax ) \ | |
| 128 | { \ | |
| 129 | t1_field_fixed, \ | |
| 130 | (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ | |
| 131 | sizeof ( Z1_FIELD_REF( _ftype, _fname )[0] ), \ | |
| 132 | _fmax, \ | |
| 133 | (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fcount ), \ | |
| 134 | 0 \ | |
| 135 | } | |
| 136 | ||
| 137 | #define Z1_FIELD_NUM_ARRAY2( _ftype, _fname, _fmax ) \ | |
| 138 | { \ | |
| 139 | t1_field_integer, \ | |
| 140 | (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ | |
| 141 | sizeof ( Z1_FIELD_REF( _ftype, _fname )[0] ), \ | |
| 142 | _fmax, \ | |
| 143 | 0, 0 \ | |
| 144 | } | |
| 145 | ||
| 146 | #define Z1_FIELD_FIXED_ARRAY2( _ftype, _fname, _fmax ) \ | |
| 147 | { \ | |
| 148 | t1_field_fixed, \ | |
| 149 | (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ | |
| 150 | sizeof ( Z1_FIELD_REF( _ftype, _fname )[0] ), \ | |
| 151 | _fmax, \ | |
| 152 | 0, 0 \ | |
| 153 | } | |
| 154 | ||
| 155 | ||
| 156 | /*************************************************************************/ | |
| 157 | /* */ | |
| 158 | /* <Struct> */ | |
| 159 | /* Z1_Table */ | |
| 160 | /* */ | |
| 161 | /* <Description> */ | |
| 162 | /* A Z1_Table is a simple object used to store an array of objects in */ | |
| 163 | /* a single memory block. */ | |
| 164 | /* */ | |
| 165 | /* <Fields> */ | |
| 166 | /* block :: The address in memory of the growheap's block. This */ | |
| 167 | /* can change between two object adds, due to the use of */ | |
| 168 | /* reallocation. */ | |
| 169 | /* */ | |
| 170 | /* cursor :: The current top of the grow heap within its block. */ | |
| 171 | /* */ | |
| 172 | /* capacity :: The current size of the heap block. Increments in */ | |
| 173 | /* 1kByte blocks. */ | |
| 174 | /* */ | |
| 175 | /* init :: A boolean. Set when the table has been initialized */ | |
| 176 | /* (the table user should set this field). */ | |
| 177 | /* */ | |
| 178 | /* max_elems :: The maximum number of elements in the table. */ | |
| 179 | /* */ | |
| 180 | /* num_elems :: The current number of elements in the table. */ | |
| 181 | /* */ | |
| 182 | /* elements :: A table of element addresses within the block. */ | |
| 183 | /* */ | |
| 184 | /* lengths :: A table of element sizes within the block. */ | |
| 185 | /* */ | |
| 186 | /* memory :: The memory object used for memory operations */ | |
| 187 | /* (allocation/reallocation). */ | |
| 188 | /* */ | |
| 189 | typedef struct Z1_Table_ | |
| 190 | { | |
| 191 | FT_Byte* block; /* current memory block */ | |
| 192 | FT_Int cursor; /* current cursor in memory block */ | |
| 193 | FT_Int capacity; /* current size of memory block */ | |
| 194 | FT_Long init; | |
| 195 | ||
| 196 | FT_Int max_elems; | |
| 197 | FT_Int num_elems; | |
| 198 | FT_Byte** elements; /* addresses of table elements */ | |
| 199 | FT_Int* lengths; /* lengths of table elements */ | |
| 200 | ||
| 201 | FT_Memory memory; | |
| 202 | ||
| 203 | } Z1_Table; | |
| 204 | ||
| 205 | ||
| 206 | /*************************************************************************/ | |
| 207 | /* */ | |
| 208 | /* <Struct> */ | |
| 209 | /* Z1_Parser */ | |
| 210 | /* */ | |
| 211 | /* <Description> */ | |
| 212 | /* A Z1_Parser is an object used to parse a Type 1 fonts very */ | |
| 213 | /* quickly. */ | |
| 214 | /* */ | |
| 215 | /* <Fields> */ | |
| 216 | /* stream :: The current input stream. */ | |
| 217 | /* */ | |
| 218 | /* memory :: The current memory object. */ | |
| 219 | /* */ | |
| 220 | /* base_dict :: A pointer to the top-level dictionary. */ | |
| 221 | /* */ | |
| 222 | /* base_len :: The length in bytes of the top dictionary. */ | |
| 223 | /* */ | |
| 224 | /* private_dict :: A pointer to the private dictionary. */ | |
| 225 | /* */ | |
| 226 | /* private_len :: The length in bytes of the private dictionary. */ | |
| 227 | /* */ | |
| 228 | /* in_pfb :: A boolean. Indicates that we are handling a PFB */ | |
| 229 | /* file. */ | |
| 230 | /* */ | |
| 231 | /* in_memory :: A boolean. Indicates a memory-based stream. */ | |
| 232 | /* */ | |
| 233 | /* single_block :: A boolean. Indicates that the private dictionary */ | |
| 234 | /* is stored in lieu of the base dictionary. */ | |
| 235 | /* */ | |
| 236 | /* cursor :: The current parser cursor. */ | |
| 237 | /* */ | |
| 238 | /* limit :: The current parser limit (first byte after the */ | |
| 239 | /* current dictionary). */ | |
| 240 | /* */ | |
| 241 | /* error :: The current parsing error. */ | |
| 242 | /* */ | |
| 243 | typedef struct Z1_Parser_ | |
| 244 | { | |
| 245 | FT_Stream stream; | |
| 246 | FT_Memory memory; | |
| 247 | ||
| 248 | FT_Byte* base_dict; | |
| 249 | FT_Int base_len; | |
| 250 | ||
| 251 | FT_Byte* private_dict; | |
| 252 | FT_Int private_len; | |
| 253 | ||
| 254 | FT_Byte in_pfb; | |
| 255 | FT_Byte in_memory; | |
| 256 | FT_Byte single_block; | |
| 257 | ||
| 258 | FT_Byte* cursor; | |
| 259 | FT_Byte* limit; | |
| 260 | FT_Error error; | |
| 261 | ||
| 262 | } Z1_Parser; | |
| 263 | ||
| 264 | ||
| 265 | LOCAL_DEF | |
| 266 | FT_Error Z1_New_Table( Z1_Table* table, | |
| 267 | FT_Int count, | |
| 268 | FT_Memory memory ); | |
| 269 | ||
| 270 | ||
| 271 | LOCAL_DEF | |
| 272 | FT_Error Z1_Add_Table( Z1_Table* table, | |
| 273 | FT_Int index, | |
| 274 | void* object, | |
| 275 | FT_Int length ); | |
| 276 | ||
| 277 | #if 0 | |
| 278 | LOCAL_DEF | |
| 279 | void Z1_Done_Table( Z1_Table* table ); | |
| 280 | #endif | |
| 281 | ||
| 282 | LOCAL_DEF | |
| 283 | void Z1_Release_Table( Z1_Table* table ); | |
| 284 | ||
| 285 | LOCAL_DEF | |
| 286 | FT_Long Z1_ToInt( Z1_Parser* parser ); | |
| 287 | ||
| 288 | LOCAL_DEF | |
| 289 | FT_Long Z1_ToFixed( Z1_Parser* parser, | |
| 290 | FT_Int power_ten ); | |
| 291 | ||
| 292 | LOCAL_DEF | |
| 293 | FT_Int Z1_ToCoordArray( Z1_Parser* parser, | |
| 294 | FT_Int max_coords, | |
| 295 | FT_Short* coords ); | |
| 296 | ||
| 297 | LOCAL_DEF | |
| 298 | FT_Int Z1_ToFixedArray( Z1_Parser* parser, | |
| 299 | FT_Int max_values, | |
| 300 | FT_Fixed* values, | |
| 301 | FT_Int power_ten ); | |
| 302 | ||
| 303 | #if 0 | |
| 304 | LOCAL_DEF | |
| 305 | FT_String* Z1_ToString( Z1_Parser* parser ); | |
| 306 | ||
| 307 | LOCAL_DEF | |
| 308 | FT_Bool Z1_ToBool( Z1_Parser* parser ); | |
| 309 | #endif | |
| 310 | ||
| 311 | ||
| 312 | LOCAL_DEF | |
| 313 | void Z1_Skip_Spaces( Z1_Parser* parser ); | |
| 314 | ||
| 315 | LOCAL_DEF | |
| 316 | void Z1_ToToken( Z1_Parser* parser, | |
| 317 | Z1_Token_Rec* token ); | |
| 318 | ||
| 319 | LOCAL_FUNC | |
| 320 | void Z1_ToTokenArray( Z1_Parser* parser, | |
| 321 | Z1_Token_Rec* tokens, | |
| 322 | FT_UInt max_tokens, | |
| 323 | FT_Int* pnum_tokens ); | |
| 324 | ||
| 325 | LOCAL_DEF | |
| 326 | FT_Error Z1_Load_Field( Z1_Parser* parser, | |
| 327 | const Z1_Field_Rec* field, | |
| 328 | void** objects, | |
| 329 | FT_UInt max_objects, | |
| 330 | FT_ULong* pflags ); | |
| 331 | ||
| 332 | LOCAL_DEF | |
| 333 | FT_Error Z1_Load_Field_Table( Z1_Parser* parser, | |
| 334 | const Z1_Field_Rec* field, | |
| 335 | void** objects, | |
| 336 | FT_UInt max_objects, | |
| 337 | FT_ULong* pflags ); | |
| 338 | ||
| 339 | ||
| 340 | LOCAL_DEF | |
| 341 | FT_Error Z1_New_Parser( Z1_Parser* parser, | |
| 342 | FT_Stream stream, | |
| 343 | FT_Memory memory ); | |
| 344 | ||
| 345 | LOCAL_DEF | |
| 346 | FT_Error Z1_Get_Private_Dict( Z1_Parser* parser ); | |
| 347 | ||
| 348 | LOCAL_DEF | |
| 349 | void Z1_Decrypt( FT_Byte* buffer, | |
| 350 | FT_Int length, | |
| 351 | FT_UShort seed ); | |
| 352 | ||
| 353 | LOCAL_DEF | |
| 354 | void Z1_Done_Parser( Z1_Parser* parser ); | |
| 355 | ||
| 356 | #ifdef __cplusplus | |
| 357 | } | |
| 358 | #endif | |
| 359 | ||
| 360 | #endif /* Z1PARSE_H */ | |
| 361 | ||
| 362 | ||
| 363 | /* END */ |