freetype/src/type42/t42parse.h
Werner Lemberg e3f41982a2 Completely revised Type 42 parser. It now handles both fonts
produced with ttftot42 (tested version 0.3.1) and
TrueTypeToType42.ps (tested version May 2001; it is necessary to
fix the broken header comment to be `%!PS-TrueTypeFont...').

* src/type42/t42objs.c (T42_GlyphSlot_Load): Change fourth
parameter to `FT_UInt'.
* src/type42/t42objs.h: Updated.

* src/type42/t42parse.h (T42_ParserRec): Change type of `in_memory'
to FT_Bool.
(T42_Loader): Change type of `num_chars' and `num_glyphs' to
FT_UInt.
Add `swap_table' element.
* src/type42/t42parse.c (T42_KEYWORD_COUNT, T1_ToFixed,
T1_ToCoordArray, T1_ToTokenArray): Removed.
(T1_ToBytes): New macro.
(t42_is_alpha, t42_hexval): Removed.
(t42_is_space): Handle `\0'.
(t42_parse_encoding): Updated to use new PostScript parser routines
from psaux.
Handle `/Encoding [ ... ]' also.
(T42_Load_Status): New enumeration.
(t42_parse_sfnts): Updated to use new PostScript parser routines
from psaux.
(t42_parse_charstrings): Updated to use new PostScript parser
routines from psaux.
Handle `/CharStrings << ... >>' also.
Don't expect that /.notdef is the first element in dictionary.  Copy
code from type1 module to handle this.
(t42_parse_dict): Updated to use new PostScript parser routines
from psaux.
Remove code for synthetic fonts (which can't occur in Type 42
fonts).
(t42_loader_done): Release `swap_table'.

* src/psaux/psobjs.c (skip_string): Increase `cur' properly.

* src/type1/t1load.c (parse_charstrings): Make test for `.notdef'
faster.
2003-10-16 15:48:39 +00:00

91 lines
2.6 KiB
C

/***************************************************************************/
/* */
/* t42parse.h */
/* */
/* Type 42 font parser (specification). */
/* */
/* Copyright 2002, 2003 by Roberto Alameda. */
/* */
/* 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 __T42PARSE_H__
#define __T42PARSE_H__
#include "t42objs.h"
#include FT_INTERNAL_POSTSCRIPT_AUX_H
FT_BEGIN_HEADER
typedef struct T42_ParserRec_
{
PS_ParserRec root;
FT_Stream stream;
FT_Byte* base_dict;
FT_Long base_len;
FT_Bool in_memory;
} T42_ParserRec, *T42_Parser;
typedef struct T42_Loader_
{
T42_ParserRec parser; /* parser used to read the stream */
FT_UInt num_chars; /* number of characters in encoding */
PS_TableRec encoding_table; /* PS_Table used to store the */
/* encoding character names */
FT_UInt num_glyphs;
PS_TableRec glyph_names;
PS_TableRec charstrings;
PS_TableRec swap_table; /* For moving .notdef glyph to index 0. */
} T42_LoaderRec, *T42_Loader;
FT_LOCAL( FT_Error )
t42_parser_init( T42_Parser parser,
FT_Stream stream,
FT_Memory memory,
PSAux_Service psaux );
FT_LOCAL( void )
t42_parser_done( T42_Parser parser );
FT_LOCAL( FT_Error )
t42_parse_dict( T42_Face face,
T42_Loader loader,
FT_Byte* base,
FT_Long size );
FT_LOCAL( void )
t42_loader_init( T42_Loader loader,
T42_Face face );
FT_LOCAL( void )
t42_loader_done( T42_Loader loader );
/* */
FT_END_HEADER
#endif /* __T42PARSE_H__ */
/* END */