windows-nt/Source/XPSP1/NT/shell/osshell/fontfldr/fontext/t1instal/hints.h

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2020-09-26 03:20:57 -05:00
/***
**
** Module: Hints
**
** Description:
** This is a module of the T1 to TT font converter. This is a
** sub-module of the T1 to TT data translator module. It deals
** with hints. Any part pf the T1 font that gets translated into
** TrueType instructions is done within this module.
**
** Author: Michael Jansson
**
** Created: 8/24/93
**
***/
#ifndef _ARGS
# define IN const
# define OUT
# define INOUT
# define _ARGS(arg) arg
#endif
/***
** Function: ConvertHints
**
** Description:
** This functions converts hstem, hstem3, vstem, vstem3 and flex
** hints, as well as doing diagonal control.
***/
errcode ConvertHints _ARGS((INOUT struct T1Metrics *t1m,
IN Hints *hints,
IN Outline *orgpaths,
IN Outline *paths,
IN short *sideboard,
OUT UBYTE **gpgm,
OUT USHORT *num,
OUT USHORT *stack,
OUT USHORT *twilight));
/***
** Function: BuildPreProgram
**
** Description:
** This function builds the pre-program that will compute
** the CVT and storage entries for the TT stem hint
** instructions to work.
***/
USHORT BuildPreProgram _ARGS((IN struct T1Metrics *t1m,
IN WeightControl *weight,
INOUT Blues *blues,
INOUT AlignmentControl *align,
INOUT UBYTE **prep,
IN int prepsize,
OUT USHORT *maxprepstack));
/***
** Function: MatchingFamily
**
** Description:
** Locate the family alignment zone that is closest to
** a given alignment zone.
***/
short MatchingFamily _ARGS((IN funit pos,
IN funit *family,
IN USHORT fcnt));
/***
** Function: GetRomanHints
**
** Description:
***/
const UBYTE *GetRomanHints _ARGS((OUT int *size));
/***
** Function: GetSwissHints
**
** Description:
***/
const UBYTE *GetSwissHints _ARGS((OUT int *size));
/***
** Function: GetFontProg
**
** Description:
** Return the font program.
***/
const UBYTE *GetFontProg _ARGS((void));
/***
** Function: GetFontProgSize
**
** Description:
** Return the size of the font program.
***/
const USHORT GetFontProgSize _ARGS((void));
/***
** Function: GetNumFuns
**
** Description:
** Return the number of functions defined in
** the font program.
***/
const USHORT GetNumFuns _ARGS((void));