878 lines
35 KiB
C
878 lines
35 KiB
C
/***************************************************************************/
|
|
/* */
|
|
/* 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_PtrDist 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_Long init;
|
|
|
|
FT_Int max_elems;
|
|
FT_Int num_elems;
|
|
FT_Byte** elements; /* addresses of table elements */
|
|
FT_PtrDist* 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_Long* 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_UInt num_subrs;
|
|
FT_Byte** subrs;
|
|
FT_PtrDist* 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 */
|