kc3-lang/freetype/src/cid/cidparse.h
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Hash : deb4e983
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Date : 2000-06-29T03:14:25
Formatting... Preprocessor lines now always start the line. Improved error handling in `base' module. Fixed a out-of-bounds error in ttgload.
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src/cid/cidparse.h
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/***************************************************************************/ /* */ /* cidparse.h */ /* */ /* CID-keyed Type1 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 CIDPARSE_H #define CIDPARSE_H #include <freetype/internal/t1types.h> #ifdef __cplusplus extern "C" { #endif #if 0 /*************************************************************************/ /* */ /* <Struct> */ /* CID_Table */ /* */ /* <Description> */ /* A CID_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 `realloc()'. */ /* */ /* cursor :: The current top of the growheap within its block. */ /* */ /* capacity :: The current size of the heap block. Increments by */ /* blocks of 1 kByte. */ /* */ /* init :: A boolean. Set when the table has been initialized */ /* (the table user should set this field). */ /* */ /* max_elems :: The maximal number of elements in the table. */ /* */ /* num_elems :: The current number of elements (in use) 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 resp. reallocation). */ /* */ typedef struct CID_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; } CID_Table; LOCAL_DEF FT_Error CID_New_Table( CID_Table* table, FT_Int count, CID_Memory memory ); LOCAL_DEF FT_Error CID_Add_Table( CID_Table* table, FT_Int index, void* object, FT_Int length ); LOCAL_DEF void CID_Release_Table( CID_Table* table ); #endif /* 0 */ /*************************************************************************/ /* */ /* <Struct> */ /* CID_Parser */ /* */ /* <Description> */ /* A CID_Parser is an object used to parse a Type 1 fonts very */ /* quickly. */ /* */ /* <Fields> */ /* stream :: The current input stream. */ /* */ /* memory :: The current memory object. */ /* */ /* postscript :: A pointer to the data to be parsed. */ /* */ /* postscript_len :: The length of the data to be parsed. */ /* */ /* data_offset :: The start position of the binary data (i.e., the */ /* end of the data to be parsed. */ /* */ /* cursor :: The current parser cursor. */ /* */ /* limit :: The current parser limit (i.e., the first byte */ /* after the current dictionary). */ /* */ /* error :: The current parsing error. */ /* */ /* cid :: A structure which holds the information about */ /* the current font. */ /* */ /* num_dict :: The number of font dictionaries. */ /* */ typedef struct CID_Parser_ { FT_Stream stream; FT_Memory memory; FT_Byte* postscript; FT_Int postscript_len; FT_ULong data_offset; FT_Byte* cursor; FT_Byte* limit; FT_Error error; CID_Info* cid; FT_Int num_dict; } CID_Parser; LOCAL_DEF FT_Error CID_New_Parser( CID_Parser* parser, FT_Stream stream, FT_Memory memory ); LOCAL_DEF void CID_Done_Parser( CID_Parser* parser ); /*************************************************************************/ /* */ /* PARSING ROUTINES */ /* */ /*************************************************************************/ LOCAL_DEF FT_Long CID_ToInt( CID_Parser* parser ); LOCAL_DEF FT_Int CID_ToCoordArray( CID_Parser* parser, FT_Int max_coords, FT_Short* coords ); LOCAL_DEF FT_Int CID_ToFixedArray( CID_Parser* parser, FT_Int max_values, FT_Fixed* values, FT_Int power_ten ); LOCAL_DEF void CID_Skip_Spaces( CID_Parser* parser ); /* simple enumeration type used to identify token types */ typedef enum CID_Token_Type_ { t1_token_none = 0, t1_token_any, t1_token_string, t1_token_array, /* do not remove */ t1_token_max } CID_Token_Type; /* a simple structure used to identify tokens */ typedef struct CID_Token_Rec_ { FT_Byte* start; /* first character of token in input stream */ FT_Byte* limit; /* first character after the token */ CID_Token_Type type; /* type of token */ } CID_Token_Rec; LOCAL_DEF void CID_ToToken( CID_Parser* parser, CID_Token_Rec* token ); /* enumeration type used to identify object fields */ typedef enum CID_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, t1_field_callback, /* do not remove */ t1_field_max } CID_Field_Type; typedef enum CID_Field_Location_ { t1_field_cid_info, t1_field_font_dict, t1_field_font_info, t1_field_private, /* do not remove */ t1_field_location_max } CID_Field_Location; typedef FT_Error (*CID_Field_Parser)( CID_Face face, CID_Parser* parser ); /* structure type used to model object fields */ typedef struct CID_Field_Rec_ { const char* ident; /* field identifier */ CID_Field_Location location; CID_Field_Type type; /* type of field */ CID_Field_Parser reader; FT_UInt offset; /* offset of field in object */ FT_UInt size; /* size of field in bytes */ FT_UInt array_max; /* maximal number of elements for */ /* array */ FT_UInt count_offset; /* offset of element count for */ /* arrays */ } CID_Field_Rec; #define CID_FIELD_REF( s, f ) ( ((s*)0)->f ) #define CID_NEW_SIMPLE_FIELD( _ident, _type, _fname ) \ { \ _ident, T1CODE, _type, \ 0, \ (FT_UInt)(char*)&CID_FIELD_REF( T1TYPE, _fname ), \ sizeof ( CID_FIELD_REF( T1TYPE, _fname ) ), \ 0, 0 \ }, #define CID_NEW_CALLBACK_FIELD( _ident, _reader ) \ { \ _ident, T1CODE, t1_field_callback, \ _reader, \ 0, 0, \ 0, 0 \ }, #define CID_NEW_TABLE_FIELD( _ident, _type, _fname, _max ) \ { \ _ident, T1CODE, _type, \ 0, \ (FT_UInt)(char*)&CID_FIELD_REF( T1TYPE, _fname ), \ sizeof ( CID_FIELD_REF( T1TYPE, _fname )[0] ), \ _max, \ (FT_UInt)(char*)&CID_FIELD_REF( T1TYPE, num_ ## _fname ) \ }, #define CID_NEW_TABLE_FIELD2( _ident, _type, _fname, _max ) \ { \ _ident, T1CODE, _type, \ 0, \ (FT_UInt)(char*)&CID_FIELD_REF( T1TYPE, _fname ), \ sizeof ( CID_FIELD_REF( T1TYPE, _fname )[0] ), \ _max, 0 \ }, #define CID_FIELD_BOOL( _ident, _fname ) \ CID_NEW_SIMPLE_FIELD( _ident, t1_field_bool, _fname ) #define CID_FIELD_NUM( _ident, _fname ) \ CID_NEW_SIMPLE_FIELD( _ident, t1_field_integer, _fname ) #define CID_FIELD_FIXED( _ident, _fname ) \ CID_NEW_SIMPLE_FIELD( _ident, t1_field_fixed, _fname ) #define CID_FIELD_STRING( _ident, _fname ) \ CID_NEW_SIMPLE_FIELD( _ident, t1_field_string, _fname ) #define CID_FIELD_NUM_TABLE( _ident, _fname, _fmax ) \ CID_NEW_TABLE_FIELD( _ident, t1_field_integer_array, \ _fname, _fmax ) #define CID_FIELD_FIXED_TABLE( _ident, _fname, _fmax ) \ CID_NEW_TABLE_FIELD( _ident, t1_field_fixed_array, \ _fname, _fmax ) #define CID_FIELD_NUM_TABLE2( _ident, _fname, _fmax ) \ CID_NEW_TABLE_FIELD2( _ident, t1_field_integer_array, \ _fname, _fmax ) #define CID_FIELD_FIXED_TABLE2( _ident, _fname, _fmax ) \ CID_NEW_TABLE_FIELD2( _ident, t1_field_fixed_array, \ _fname, _fmax ) #define CID_FIELD_CALLBACK( _ident, _name ) \ CID_NEW_CALLBACK_FIELD( _ident, parse_ ## _name ) LOCAL_DEF FT_Error CID_Load_Field( CID_Parser* parser, const CID_Field_Rec* field, void* object ); LOCAL_DEF FT_Error CID_Load_Field_Table( CID_Parser* parser, const CID_Field_Rec* field, void* object ); #ifdef __cplusplus } #endif #endif /* CIDPARSE_H */ /* END */