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kc3-lang/freetype/src/type1z/z1parse.h
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Author :
Werner Lemberg
Date : 2000-07-09 19:15:30
Hash : b48a6094
Message : Formatting. Moving some internal structures and constants from freetype.h to ftobjs.h. Finally removing FT_LOAD_ANTI_ALIAS. Cleaning up all error codes. Only the used ones have survived :-) Removed unused FT_MAX_GLYPH_FORMATS constant. T2 error codes are now in the range 0x500-0x5FF (instead of `TrueDoc'). Some minor improvements of error return values. Finally fixing error code values in ftraster and ftgrays to be compliant with all other FT error codes.
- src/type1z/z1parse.h
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/***************************************************************************/ /* */ /* z1parse.h */ /* */ /* Experimental Type 1 parser (specification). */ /* */ /* Copyright 1996-2000 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 Z1PARSE_H #define Z1PARSE_H #include <freetype/internal/t1types.h> #ifdef __cplusplus extern "C" { #endif /* simple enumeration type used to identify token types */ typedef enum Z1_Token_Type_ { t1_token_none = 0, t1_token_any, t1_token_string, t1_token_array, /* do not remove */ t1_token_max } Z1_Token_Type; /* a simple structure used to identify tokens */ typedef struct Z1_Token_Rec_ { FT_Byte* start; /* first character of token in input stream */ FT_Byte* limit; /* first character after the token */ Z1_Token_Type type; /* type of token.. */ } Z1_Token_Rec; /* enumeration type used to identify object fields */ typedef enum Z1_Field_Type_ { t1_field_none = 0, t1_field_bool, t1_field_integer, t1_field_fixed, t1_field_string, t1_field_integer_array, t1_field_fixed_array, /* do not remove */ t1_field_max } Z1_Field_Type; /* structure type used to model object fields */ typedef struct Z1_Field_Rec_ { Z1_Field_Type type; /* type of field */ FT_UInt offset; /* offset of field in object */ FT_UInt size; /* size of field in bytes */ FT_UInt array_max; /* maximum number of elements for array */ FT_UInt count_offset; /* offset of element count for arrays */ FT_Int flag_bit; /* bit number for field flag */ } Z1_Field_Rec; #define Z1_FIELD_REF( s, f ) ( ((s*)0)->f ) #define Z1_FIELD_BOOL( _ftype, _fname ) \ { \ t1_field_bool, \ (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ sizeof ( Z1_FIELD_REF( _ftype, _fname ) ), \ 0, 0, 0 \ } #define Z1_FIELD_NUM( _ftype, _fname ) \ { \ t1_field_integer, \ (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ sizeof ( Z1_FIELD_REF( _ftype, _fname ) ), \ 0, 0, 0 \ } #define Z1_FIELD_FIXED( _ftype, _fname, _power ) \ { \ t1_field_fixed, \ (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ sizeof ( Z1_FIELD_REF( _ftype, _fname ) ), \ 0, 0, 0 \ } #define Z1_FIELD_STRING( _ftype, _fname ) \ { \ t1_field_string, \ (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ sizeof ( Z1_FIELD_REF( _ftype, _fname ) ), \ 0, 0, 0 \ } #define Z1_FIELD_NUM_ARRAY( _ftype, _fname, _fcount, _fmax ) \ { \ t1_field_integer, \ (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ sizeof ( Z1_FIELD_REF( _ftype, _fname )[0] ), \ _fmax, \ (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fcount ), \ 0 \ } #define Z1_FIELD_FIXED_ARRAY( _ftype, _fname, _fcount, _fmax ) \ { \ t1_field_fixed, \ (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ sizeof ( Z1_FIELD_REF( _ftype, _fname )[0] ), \ _fmax, \ (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fcount ), \ 0 \ } #define Z1_FIELD_NUM_ARRAY2( _ftype, _fname, _fmax ) \ { \ t1_field_integer, \ (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ sizeof ( Z1_FIELD_REF( _ftype, _fname )[0] ), \ _fmax, \ 0, 0 \ } #define Z1_FIELD_FIXED_ARRAY2( _ftype, _fname, _fmax ) \ { \ t1_field_fixed, \ (FT_UInt)(char*)&Z1_FIELD_REF( _ftype, _fname ), \ sizeof ( Z1_FIELD_REF( _ftype, _fname )[0] ), \ _fmax, \ 0, 0 \ } /*************************************************************************/ /* */ /* <Struct> */ /* Z1_Table */ /* */ /* <Description> */ /* A Z1_Table is a simple object used to store an array of objects in */ /* a single memory block. */ /* */ /* <Fields> */ /* block :: The address in memory of the growheap's block. This */ /* can change between two object adds, due to the use of */ /* reallocation. */ /* */ /* cursor :: The current top of the grow heap within its block. */ /* */ /* capacity :: The current size of the heap block. Increments in */ /* 1kByte blocks. */ /* */ /* init :: A boolean. Set when the table has been initialized */ /* (the table user should set this field). */ /* */ /* max_elems :: The maximum number of elements in the table. */ /* */ /* num_elems :: The current number of elements in the table. */ /* */ /* elements :: A table of element addresses within the block. */ /* */ /* lengths :: A table of element sizes within the block. */ /* */ /* memory :: The memory object used for memory operations */ /* (allocation/reallocation). */ /* */ typedef struct Z1_Table_ { FT_Byte* block; /* current memory block */ FT_Int cursor; /* current cursor in memory block */ FT_Int capacity; /* current size of memory block */ FT_Long init; FT_Int max_elems; FT_Int num_elems; FT_Byte** elements; /* addresses of table elements */ FT_Int* lengths; /* lengths of table elements */ FT_Memory memory; } Z1_Table; /*************************************************************************/ /* */ /* <Struct> */ /* Z1_Parser */ /* */ /* <Description> */ /* A Z1_Parser is an object used to parse a Type 1 fonts very */ /* quickly. */ /* */ /* <Fields> */ /* stream :: The current input stream. */ /* */ /* memory :: The current memory object. */ /* */ /* base_dict :: A pointer to the top-level dictionary. */ /* */ /* base_len :: The length in bytes of the top dictionary. */ /* */ /* private_dict :: A pointer to the private dictionary. */ /* */ /* private_len :: The length in bytes of the private dictionary. */ /* */ /* in_pfb :: A boolean. Indicates that we are handling a PFB */ /* file. */ /* */ /* in_memory :: A boolean. Indicates a memory-based stream. */ /* */ /* single_block :: A boolean. Indicates that the private dictionary */ /* is stored in lieu of the base dictionary. */ /* */ /* cursor :: The current parser cursor. */ /* */ /* limit :: The current parser limit (first byte after the */ /* current dictionary). */ /* */ /* error :: The current parsing error. */ /* */ typedef struct Z1_Parser_ { FT_Stream stream; FT_Memory memory; FT_Byte* base_dict; FT_Int base_len; FT_Byte* private_dict; FT_Int private_len; FT_Byte in_pfb; FT_Byte in_memory; FT_Byte single_block; FT_Byte* cursor; FT_Byte* limit; FT_Error error; } Z1_Parser; LOCAL_DEF FT_Error Z1_New_Table( Z1_Table* table, FT_Int count, FT_Memory memory ); LOCAL_DEF FT_Error Z1_Add_Table( Z1_Table* table, FT_Int index, void* object, FT_Int length ); #if 0 LOCAL_DEF void Z1_Done_Table( Z1_Table* table ); #endif LOCAL_DEF void Z1_Release_Table( Z1_Table* table ); LOCAL_DEF FT_Long Z1_ToInt( Z1_Parser* parser ); LOCAL_DEF FT_Long Z1_ToFixed( Z1_Parser* parser, FT_Int power_ten ); LOCAL_DEF FT_Int Z1_ToCoordArray( Z1_Parser* parser, FT_Int max_coords, FT_Short* coords ); LOCAL_DEF FT_Int Z1_ToFixedArray( Z1_Parser* parser, FT_Int max_values, FT_Fixed* values, FT_Int power_ten ); #if 0 LOCAL_DEF FT_String* Z1_ToString( Z1_Parser* parser ); LOCAL_DEF FT_Bool Z1_ToBool( Z1_Parser* parser ); #endif LOCAL_DEF void Z1_Skip_Spaces( Z1_Parser* parser ); LOCAL_DEF void Z1_ToToken( Z1_Parser* parser, Z1_Token_Rec* token ); LOCAL_FUNC void Z1_ToTokenArray( Z1_Parser* parser, Z1_Token_Rec* tokens, FT_UInt max_tokens, FT_Int* pnum_tokens ); LOCAL_DEF FT_Error Z1_Load_Field( Z1_Parser* parser, const Z1_Field_Rec* field, void** objects, FT_UInt max_objects, FT_ULong* pflags ); LOCAL_DEF FT_Error Z1_Load_Field_Table( Z1_Parser* parser, const Z1_Field_Rec* field, void** objects, FT_UInt max_objects, FT_ULong* pflags ); LOCAL_DEF FT_Error Z1_New_Parser( Z1_Parser* parser, FT_Stream stream, FT_Memory memory ); LOCAL_DEF FT_Error Z1_Get_Private_Dict( Z1_Parser* parser ); LOCAL_DEF void Z1_Decrypt( FT_Byte* buffer, FT_Int length, FT_UShort seed ); LOCAL_DEF void Z1_Done_Parser( Z1_Parser* parser ); #ifdef __cplusplus } #endif #endif /* Z1PARSE_H */ /* END */