| /***************************************************************************/ |
| /* */ |
| /* psaux.h */ |
| /* */ |
| /* Auxiliary functions and data structures related to PostScript fonts */ |
| /* (specification). */ |
| /* */ |
| /* Copyright 1996-2015 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 __PSAUX_H__ |
| #define __PSAUX_H__ |
| |
| |
| #include <ft2build.h> |
| #include FT_INTERNAL_OBJECTS_H |
| #include FT_INTERNAL_TYPE1_TYPES_H |
| #include FT_SERVICE_POSTSCRIPT_CMAPS_H |
| |
| |
| FT_BEGIN_HEADER |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /***** *****/ |
| /***** T1_TABLE *****/ |
| /***** *****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| |
| typedef struct PS_TableRec_* PS_Table; |
| typedef const struct PS_Table_FuncsRec_* PS_Table_Funcs; |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Struct> */ |
| /* PS_Table_FuncsRec */ |
| /* */ |
| /* <Description> */ |
| /* A set of function pointers to manage PS_Table objects. */ |
| /* */ |
| /* <Fields> */ |
| /* table_init :: Used to initialize a table. */ |
| /* */ |
| /* table_done :: Finalizes resp. destroy a given table. */ |
| /* */ |
| /* table_add :: Adds a new object to a table. */ |
| /* */ |
| /* table_release :: Releases table data, then finalizes it. */ |
| /* */ |
| typedef struct PS_Table_FuncsRec_ |
| { |
| FT_Error |
| (*init)( PS_Table table, |
| FT_Int count, |
| FT_Memory memory ); |
| |
| void |
| (*done)( PS_Table table ); |
| |
| FT_Error |
| (*add)( PS_Table table, |
| FT_Int idx, |
| void* object, |
| FT_UInt length ); |
| |
| void |
| (*release)( PS_Table table ); |
| |
| } PS_Table_FuncsRec; |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Struct> */ |
| /* PS_TableRec */ |
| /* */ |
| /* <Description> */ |
| /* A PS_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 */ |
| /* reallocation. */ |
| /* */ |
| /* cursor :: The current top of the grow heap within its block. */ |
| /* */ |
| /* capacity :: The current size of the heap block. Increments by */ |
| /* 1kByte chunks. */ |
| /* */ |
| /* init :: Set to 0xDEADBEEF if `elements' and `lengths' have */ |
| /* been allocated. */ |
| /* */ |
| /* max_elems :: The maximum number of elements in table. */ |
| /* */ |
| /* num_elems :: The current number of elements in table. */ |
| /* */ |
| /* elements :: A table of element addresses within the block. */ |
| /* */ |
| /* lengths :: A table of element sizes within the block. */ |
| /* */ |
| /* memory :: The object used for memory operations */ |
| /* (alloc/realloc). */ |
| /* */ |
| /* funcs :: A table of method pointers for this object. */ |
| /* */ |
| typedef struct PS_TableRec_ |
| { |
| FT_Byte* block; /* current memory block */ |
| FT_Offset cursor; /* current cursor in memory block */ |
| FT_Offset capacity; /* current size of memory block */ |
| FT_ULong init; |
| |
| FT_Int max_elems; |
| FT_Int num_elems; |
| FT_Byte** elements; /* addresses of table elements */ |
| FT_UInt* lengths; /* lengths of table elements */ |
| |
| FT_Memory memory; |
| PS_Table_FuncsRec funcs; |
| |
| } PS_TableRec; |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /***** *****/ |
| /***** T1 FIELDS & TOKENS *****/ |
| /***** *****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| typedef struct PS_ParserRec_* PS_Parser; |
| |
| typedef struct T1_TokenRec_* T1_Token; |
| |
| typedef struct T1_FieldRec_* T1_Field; |
| |
| |
| /* simple enumeration type used to identify token types */ |
| typedef enum T1_TokenType_ |
| { |
| T1_TOKEN_TYPE_NONE = 0, |
| T1_TOKEN_TYPE_ANY, |
| T1_TOKEN_TYPE_STRING, |
| T1_TOKEN_TYPE_ARRAY, |
| T1_TOKEN_TYPE_KEY, /* aka `name' */ |
| |
| /* do not remove */ |
| T1_TOKEN_TYPE_MAX |
| |
| } T1_TokenType; |
| |
| |
| /* a simple structure used to identify tokens */ |
| typedef struct T1_TokenRec_ |
| { |
| FT_Byte* start; /* first character of token in input stream */ |
| FT_Byte* limit; /* first character after the token */ |
| T1_TokenType type; /* type of token */ |
| |
| } T1_TokenRec; |
| |
| |
| /* enumeration type used to identify object fields */ |
| typedef enum T1_FieldType_ |
| { |
| T1_FIELD_TYPE_NONE = 0, |
| T1_FIELD_TYPE_BOOL, |
| T1_FIELD_TYPE_INTEGER, |
| T1_FIELD_TYPE_FIXED, |
| T1_FIELD_TYPE_FIXED_1000, |
| T1_FIELD_TYPE_STRING, |
| T1_FIELD_TYPE_KEY, |
| T1_FIELD_TYPE_BBOX, |
| T1_FIELD_TYPE_MM_BBOX, |
| T1_FIELD_TYPE_INTEGER_ARRAY, |
| T1_FIELD_TYPE_FIXED_ARRAY, |
| T1_FIELD_TYPE_CALLBACK, |
| |
| /* do not remove */ |
| T1_FIELD_TYPE_MAX |
| |
| } T1_FieldType; |
| |
| |
| typedef enum T1_FieldLocation_ |
| { |
| T1_FIELD_LOCATION_CID_INFO, |
| T1_FIELD_LOCATION_FONT_DICT, |
| T1_FIELD_LOCATION_FONT_EXTRA, |
| T1_FIELD_LOCATION_FONT_INFO, |
| T1_FIELD_LOCATION_PRIVATE, |
| T1_FIELD_LOCATION_BBOX, |
| T1_FIELD_LOCATION_LOADER, |
| T1_FIELD_LOCATION_FACE, |
| T1_FIELD_LOCATION_BLEND, |
| |
| /* do not remove */ |
| T1_FIELD_LOCATION_MAX |
| |
| } T1_FieldLocation; |
| |
| |
| typedef void |
| (*T1_Field_ParseFunc)( FT_Face face, |
| FT_Pointer parser ); |
| |
| |
| /* structure type used to model object fields */ |
| typedef struct T1_FieldRec_ |
| { |
| const char* ident; /* field identifier */ |
| T1_FieldLocation location; |
| T1_FieldType type; /* type of field */ |
| T1_Field_ParseFunc reader; |
| FT_UInt offset; /* offset of field in object */ |
| FT_Byte 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; must not be zero if in */ |
| /* use -- in other words, a */ |
| /* `num_FOO' element must not */ |
| /* start the used structure if we */ |
| /* parse a `FOO' array */ |
| FT_UInt dict; /* where we expect it */ |
| } T1_FieldRec; |
| |
| #define T1_FIELD_DICT_FONTDICT ( 1 << 0 ) /* also FontInfo and FDArray */ |
| #define T1_FIELD_DICT_PRIVATE ( 1 << 1 ) |
| |
| |
| |
| #define T1_NEW_SIMPLE_FIELD( _ident, _type, _fname, _dict ) \ |
| { \ |
| _ident, T1CODE, _type, \ |
| 0, \ |
| FT_FIELD_OFFSET( _fname ), \ |
| FT_FIELD_SIZE( _fname ), \ |
| 0, 0, \ |
| _dict \ |
| }, |
| |
| #define T1_NEW_CALLBACK_FIELD( _ident, _reader, _dict ) \ |
| { \ |
| _ident, T1CODE, T1_FIELD_TYPE_CALLBACK, \ |
| (T1_Field_ParseFunc)_reader, \ |
| 0, 0, \ |
| 0, 0, \ |
| _dict \ |
| }, |
| |
| #define T1_NEW_TABLE_FIELD( _ident, _type, _fname, _max, _dict ) \ |
| { \ |
| _ident, T1CODE, _type, \ |
| 0, \ |
| FT_FIELD_OFFSET( _fname ), \ |
| FT_FIELD_SIZE_DELTA( _fname ), \ |
| _max, \ |
| FT_FIELD_OFFSET( num_ ## _fname ), \ |
| _dict \ |
| }, |
| |
| #define T1_NEW_TABLE_FIELD2( _ident, _type, _fname, _max, _dict ) \ |
| { \ |
| _ident, T1CODE, _type, \ |
| 0, \ |
| FT_FIELD_OFFSET( _fname ), \ |
| FT_FIELD_SIZE_DELTA( _fname ), \ |
| _max, 0, \ |
| _dict \ |
| }, |
| |
| |
| #define T1_FIELD_BOOL( _ident, _fname, _dict ) \ |
| T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BOOL, _fname, _dict ) |
| |
| #define T1_FIELD_NUM( _ident, _fname, _dict ) \ |
| T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER, _fname, _dict ) |
| |
| #define T1_FIELD_FIXED( _ident, _fname, _dict ) \ |
| T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED, _fname, _dict ) |
| |
| #define T1_FIELD_FIXED_1000( _ident, _fname, _dict ) \ |
| T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_1000, _fname, \ |
| _dict ) |
| |
| #define T1_FIELD_STRING( _ident, _fname, _dict ) \ |
| T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_STRING, _fname, _dict ) |
| |
| #define T1_FIELD_KEY( _ident, _fname, _dict ) \ |
| T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_KEY, _fname, _dict ) |
| |
| #define T1_FIELD_BBOX( _ident, _fname, _dict ) \ |
| T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BBOX, _fname, _dict ) |
| |
| |
| #define T1_FIELD_NUM_TABLE( _ident, _fname, _fmax, _dict ) \ |
| T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \ |
| _fname, _fmax, _dict ) |
| |
| #define T1_FIELD_FIXED_TABLE( _ident, _fname, _fmax, _dict ) \ |
| T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \ |
| _fname, _fmax, _dict ) |
| |
| #define T1_FIELD_NUM_TABLE2( _ident, _fname, _fmax, _dict ) \ |
| T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \ |
| _fname, _fmax, _dict ) |
| |
| #define T1_FIELD_FIXED_TABLE2( _ident, _fname, _fmax, _dict ) \ |
| T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \ |
| _fname, _fmax, _dict ) |
| |
| #define T1_FIELD_CALLBACK( _ident, _name, _dict ) \ |
| T1_NEW_CALLBACK_FIELD( _ident, _name, _dict ) |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /***** *****/ |
| /***** T1 PARSER *****/ |
| /***** *****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| typedef const struct PS_Parser_FuncsRec_* PS_Parser_Funcs; |
| |
| typedef struct PS_Parser_FuncsRec_ |
| { |
| void |
| (*init)( PS_Parser parser, |
| FT_Byte* base, |
| FT_Byte* limit, |
| FT_Memory memory ); |
| |
| void |
| (*done)( PS_Parser parser ); |
| |
| void |
| (*skip_spaces)( PS_Parser parser ); |
| void |
| (*skip_PS_token)( PS_Parser parser ); |
| |
| FT_Long |
| (*to_int)( PS_Parser parser ); |
| FT_Fixed |
| (*to_fixed)( PS_Parser parser, |
| FT_Int power_ten ); |
| |
| FT_Error |
| (*to_bytes)( PS_Parser parser, |
| FT_Byte* bytes, |
| FT_Offset max_bytes, |
| FT_ULong* pnum_bytes, |
| FT_Bool delimiters ); |
| |
| FT_Int |
| (*to_coord_array)( PS_Parser parser, |
| FT_Int max_coords, |
| FT_Short* coords ); |
| FT_Int |
| (*to_fixed_array)( PS_Parser parser, |
| FT_Int max_values, |
| FT_Fixed* values, |
| FT_Int power_ten ); |
| |
| void |
| (*to_token)( PS_Parser parser, |
| T1_Token token ); |
| void |
| (*to_token_array)( PS_Parser parser, |
| T1_Token tokens, |
| FT_UInt max_tokens, |
| FT_Int* pnum_tokens ); |
| |
| FT_Error |
| (*load_field)( PS_Parser parser, |
| const T1_Field field, |
| void** objects, |
| FT_UInt max_objects, |
| FT_ULong* pflags ); |
| |
| FT_Error |
| (*load_field_table)( PS_Parser parser, |
| const T1_Field field, |
| void** objects, |
| FT_UInt max_objects, |
| FT_ULong* pflags ); |
| |
| } PS_Parser_FuncsRec; |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Struct> */ |
| /* PS_ParserRec */ |
| /* */ |
| /* <Description> */ |
| /* A PS_Parser is an object used to parse a Type 1 font very quickly. */ |
| /* */ |
| /* <Fields> */ |
| /* cursor :: The current position in the text. */ |
| /* */ |
| /* base :: Start of the processed text. */ |
| /* */ |
| /* limit :: End of the processed text. */ |
| /* */ |
| /* error :: The last error returned. */ |
| /* */ |
| /* memory :: The object used for memory operations (alloc/realloc). */ |
| /* */ |
| /* funcs :: A table of functions for the parser. */ |
| /* */ |
| typedef struct PS_ParserRec_ |
| { |
| FT_Byte* cursor; |
| FT_Byte* base; |
| FT_Byte* limit; |
| FT_Error error; |
| FT_Memory memory; |
| |
| PS_Parser_FuncsRec funcs; |
| |
| } PS_ParserRec; |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /***** *****/ |
| /***** T1 BUILDER *****/ |
| /***** *****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| |
| typedef struct T1_BuilderRec_* T1_Builder; |
| |
| |
| typedef FT_Error |
| (*T1_Builder_Check_Points_Func)( T1_Builder builder, |
| FT_Int count ); |
| |
| typedef void |
| (*T1_Builder_Add_Point_Func)( T1_Builder builder, |
| FT_Pos x, |
| FT_Pos y, |
| FT_Byte flag ); |
| |
| typedef FT_Error |
| (*T1_Builder_Add_Point1_Func)( T1_Builder builder, |
| FT_Pos x, |
| FT_Pos y ); |
| |
| typedef FT_Error |
| (*T1_Builder_Add_Contour_Func)( T1_Builder builder ); |
| |
| typedef FT_Error |
| (*T1_Builder_Start_Point_Func)( T1_Builder builder, |
| FT_Pos x, |
| FT_Pos y ); |
| |
| typedef void |
| (*T1_Builder_Close_Contour_Func)( T1_Builder builder ); |
| |
| |
| typedef const struct T1_Builder_FuncsRec_* T1_Builder_Funcs; |
| |
| typedef struct T1_Builder_FuncsRec_ |
| { |
| void |
| (*init)( T1_Builder builder, |
| FT_Face face, |
| FT_Size size, |
| FT_GlyphSlot slot, |
| FT_Bool hinting ); |
| |
| void |
| (*done)( T1_Builder builder ); |
| |
| T1_Builder_Check_Points_Func check_points; |
| T1_Builder_Add_Point_Func add_point; |
| T1_Builder_Add_Point1_Func add_point1; |
| T1_Builder_Add_Contour_Func add_contour; |
| T1_Builder_Start_Point_Func start_point; |
| T1_Builder_Close_Contour_Func close_contour; |
| |
| } T1_Builder_FuncsRec; |
| |
| |
| /* an enumeration type to handle charstring parsing states */ |
| typedef enum T1_ParseState_ |
| { |
| T1_Parse_Start, |
| T1_Parse_Have_Width, |
| T1_Parse_Have_Moveto, |
| T1_Parse_Have_Path |
| |
| } T1_ParseState; |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Structure> */ |
| /* T1_BuilderRec */ |
| /* */ |
| /* <Description> */ |
| /* A structure used during glyph loading to store its outline. */ |
| /* */ |
| /* <Fields> */ |
| /* memory :: The current memory object. */ |
| /* */ |
| /* face :: The current face object. */ |
| /* */ |
| /* glyph :: The current glyph slot. */ |
| /* */ |
| /* loader :: XXX */ |
| /* */ |
| /* base :: The base glyph outline. */ |
| /* */ |
| /* current :: The current glyph outline. */ |
| /* */ |
| /* max_points :: maximum points in builder outline */ |
| /* */ |
| /* max_contours :: Maximum number of contours in builder outline. */ |
| /* */ |
| /* pos_x :: The horizontal translation (if composite glyph). */ |
| /* */ |
| /* pos_y :: The vertical translation (if composite glyph). */ |
| /* */ |
| /* left_bearing :: The left side bearing point. */ |
| /* */ |
| /* advance :: The horizontal advance vector. */ |
| /* */ |
| /* bbox :: Unused. */ |
| /* */ |
| /* parse_state :: An enumeration which controls the charstring */ |
| /* parsing state. */ |
| /* */ |
| /* load_points :: If this flag is not set, no points are loaded. */ |
| /* */ |
| /* no_recurse :: Set but not used. */ |
| /* */ |
| /* metrics_only :: A boolean indicating that we only want to compute */ |
| /* the metrics of a given glyph, not load all of its */ |
| /* points. */ |
| /* */ |
| /* funcs :: An array of function pointers for the builder. */ |
| /* */ |
| typedef struct T1_BuilderRec_ |
| { |
| FT_Memory memory; |
| FT_Face face; |
| FT_GlyphSlot glyph; |
| FT_GlyphLoader loader; |
| FT_Outline* base; |
| FT_Outline* current; |
| |
| FT_Pos pos_x; |
| FT_Pos pos_y; |
| |
| FT_Vector left_bearing; |
| FT_Vector advance; |
| |
| FT_BBox bbox; /* bounding box */ |
| T1_ParseState parse_state; |
| FT_Bool load_points; |
| FT_Bool no_recurse; |
| |
| FT_Bool metrics_only; |
| |
| void* hints_funcs; /* hinter-specific */ |
| void* hints_globals; /* hinter-specific */ |
| |
| T1_Builder_FuncsRec funcs; |
| |
| } T1_BuilderRec; |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /***** *****/ |
| /***** T1 DECODER *****/ |
| /***** *****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| #if 0 |
| |
| /*************************************************************************/ |
| /* */ |
| /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */ |
| /* calls during glyph loading. */ |
| /* */ |
| #define T1_MAX_SUBRS_CALLS 8 |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */ |
| /* minimum of 16 is required. */ |
| /* */ |
| #define T1_MAX_CHARSTRINGS_OPERANDS 32 |
| |
| #endif /* 0 */ |
| |
| |
| typedef struct T1_Decoder_ZoneRec_ |
| { |
| FT_Byte* cursor; |
| FT_Byte* base; |
| FT_Byte* limit; |
| |
| } T1_Decoder_ZoneRec, *T1_Decoder_Zone; |
| |
| |
| typedef struct T1_DecoderRec_* T1_Decoder; |
| typedef const struct T1_Decoder_FuncsRec_* T1_Decoder_Funcs; |
| |
| |
| typedef FT_Error |
| (*T1_Decoder_Callback)( T1_Decoder decoder, |
| FT_UInt glyph_index ); |
| |
| |
| typedef struct T1_Decoder_FuncsRec_ |
| { |
| FT_Error |
| (*init)( T1_Decoder decoder, |
| FT_Face face, |
| FT_Size size, |
| FT_GlyphSlot slot, |
| FT_Byte** glyph_names, |
| PS_Blend blend, |
| FT_Bool hinting, |
| FT_Render_Mode hint_mode, |
| T1_Decoder_Callback callback ); |
| |
| void |
| (*done)( T1_Decoder decoder ); |
| |
| FT_Error |
| (*parse_charstrings)( T1_Decoder decoder, |
| FT_Byte* base, |
| FT_UInt len ); |
| |
| } T1_Decoder_FuncsRec; |
| |
| |
| typedef struct T1_DecoderRec_ |
| { |
| T1_BuilderRec builder; |
| |
| FT_Long stack[T1_MAX_CHARSTRINGS_OPERANDS]; |
| FT_Long* top; |
| |
| T1_Decoder_ZoneRec zones[T1_MAX_SUBRS_CALLS + 1]; |
| T1_Decoder_Zone zone; |
| |
| FT_Service_PsCMaps psnames; /* for seac */ |
| FT_UInt num_glyphs; |
| FT_Byte** glyph_names; |
| |
| FT_Int lenIV; /* internal for sub routine calls */ |
| FT_Int num_subrs; |
| FT_Byte** subrs; |
| FT_UInt* subrs_len; /* array of subrs length (optional) */ |
| |
| FT_Matrix font_matrix; |
| FT_Vector font_offset; |
| |
| FT_Int flex_state; |
| FT_Int num_flex_vectors; |
| FT_Vector flex_vectors[7]; |
| |
| PS_Blend blend; /* for multiple master support */ |
| |
| FT_Render_Mode hint_mode; |
| |
| T1_Decoder_Callback parse_callback; |
| T1_Decoder_FuncsRec funcs; |
| |
| FT_Long* buildchar; |
| FT_UInt len_buildchar; |
| |
| FT_Bool seac; |
| |
| } T1_DecoderRec; |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /***** *****/ |
| /***** AFM PARSER *****/ |
| /***** *****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| typedef struct AFM_ParserRec_* AFM_Parser; |
| |
| typedef struct AFM_Parser_FuncsRec_ |
| { |
| FT_Error |
| (*init)( AFM_Parser parser, |
| FT_Memory memory, |
| FT_Byte* base, |
| FT_Byte* limit ); |
| |
| void |
| (*done)( AFM_Parser parser ); |
| |
| FT_Error |
| (*parse)( AFM_Parser parser ); |
| |
| } AFM_Parser_FuncsRec; |
| |
| |
| typedef struct AFM_StreamRec_* AFM_Stream; |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Struct> */ |
| /* AFM_ParserRec */ |
| /* */ |
| /* <Description> */ |
| /* An AFM_Parser is a parser for the AFM files. */ |
| /* */ |
| /* <Fields> */ |
| /* memory :: The object used for memory operations (alloc and */ |
| /* realloc). */ |
| /* */ |
| /* stream :: This is an opaque object. */ |
| /* */ |
| /* FontInfo :: The result will be stored here. */ |
| /* */ |
| /* get_index :: A user provided function to get a glyph index by its */ |
| /* name. */ |
| /* */ |
| typedef struct AFM_ParserRec_ |
| { |
| FT_Memory memory; |
| AFM_Stream stream; |
| |
| AFM_FontInfo FontInfo; |
| |
| FT_Int |
| (*get_index)( const char* name, |
| FT_Offset len, |
| void* user_data ); |
| |
| void* user_data; |
| |
| } AFM_ParserRec; |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /***** *****/ |
| /***** TYPE1 CHARMAPS *****/ |
| /***** *****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| typedef const struct T1_CMap_ClassesRec_* T1_CMap_Classes; |
| |
| typedef struct T1_CMap_ClassesRec_ |
| { |
| FT_CMap_Class standard; |
| FT_CMap_Class expert; |
| FT_CMap_Class custom; |
| FT_CMap_Class unicode; |
| |
| } T1_CMap_ClassesRec; |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /***** *****/ |
| /***** PSAux Module Interface *****/ |
| /***** *****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| typedef struct PSAux_ServiceRec_ |
| { |
| /* don't use `PS_Table_Funcs' and friends to avoid compiler warnings */ |
| const PS_Table_FuncsRec* ps_table_funcs; |
| const PS_Parser_FuncsRec* ps_parser_funcs; |
| const T1_Builder_FuncsRec* t1_builder_funcs; |
| const T1_Decoder_FuncsRec* t1_decoder_funcs; |
| |
| void |
| (*t1_decrypt)( FT_Byte* buffer, |
| FT_Offset length, |
| FT_UShort seed ); |
| |
| T1_CMap_Classes t1_cmap_classes; |
| |
| /* fields after this comment line were added after version 2.1.10 */ |
| const AFM_Parser_FuncsRec* afm_parser_funcs; |
| |
| } PSAux_ServiceRec, *PSAux_Service; |
| |
| /* backwards-compatible type definition */ |
| typedef PSAux_ServiceRec PSAux_Interface; |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /***** *****/ |
| /***** Some convenience functions *****/ |
| /***** *****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| #define IS_PS_NEWLINE( ch ) \ |
| ( (ch) == '\r' || \ |
| (ch) == '\n' ) |
| |
| #define IS_PS_SPACE( ch ) \ |
| ( (ch) == ' ' || \ |
| IS_PS_NEWLINE( ch ) || \ |
| (ch) == '\t' || \ |
| (ch) == '\f' || \ |
| (ch) == '\0' ) |
| |
| #define IS_PS_SPECIAL( ch ) \ |
| ( (ch) == '/' || \ |
| (ch) == '(' || (ch) == ')' || \ |
| (ch) == '<' || (ch) == '>' || \ |
| (ch) == '[' || (ch) == ']' || \ |
| (ch) == '{' || (ch) == '}' || \ |
| (ch) == '%' ) |
| |
| #define IS_PS_DELIM( ch ) \ |
| ( IS_PS_SPACE( ch ) || \ |
| IS_PS_SPECIAL( ch ) ) |
| |
| #define IS_PS_DIGIT( ch ) \ |
| ( (ch) >= '0' && (ch) <= '9' ) |
| |
| #define IS_PS_XDIGIT( ch ) \ |
| ( IS_PS_DIGIT( ch ) || \ |
| ( (ch) >= 'A' && (ch) <= 'F' ) || \ |
| ( (ch) >= 'a' && (ch) <= 'f' ) ) |
| |
| #define IS_PS_BASE85( ch ) \ |
| ( (ch) >= '!' && (ch) <= 'u' ) |
| |
| #define IS_PS_TOKEN( cur, limit, token ) \ |
| ( (char)(cur)[0] == (token)[0] && \ |
| ( (cur) + sizeof ( (token) ) == (limit) || \ |
| ( (cur) + sizeof( (token) ) < (limit) && \ |
| IS_PS_DELIM( (cur)[sizeof ( (token) ) - 1] ) ) ) && \ |
| ft_strncmp( (char*)(cur), (token), sizeof ( (token) ) - 1 ) == 0 ) |
| |
| |
| FT_END_HEADER |
| |
| #endif /* __PSAUX_H__ */ |
| |
| |
| /* END */ |
