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/***************************************************************************/
/* */
/* pshfit.h */
/* */
/* Postscript (Type 1/CFF) outline grid-fitter */
/* */
/* Copyright 2001 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. */
/* */
/* */
/* process the hints provided by the Postscript hints recorder. This */
/* means sorting and scaling the hints, calling the "optimiser" to */
/* process them, then grid-fitting the glyph outline based on the */
/* optimised hints information. */
/* */
/* (the real hinting "intelligence" is in "pshoptim.h", not here) */
/* */
/***************************************************************************/
#ifndef __PS_HINTER_FITTER_H__
#define __PS_HINTER_FITTER_H__
#include "pshrec.h"
FT_BEGIN_HEADER
typedef struct PSH_HintRec_* PSH_Hint;
typedef enum
{
PSH_HINT_FLAG_GHOST = PS_HINT_FLAG_GHOST,
PSH_HINT_FLAG_BOTTOM = PS_HINT_FLAG_BOTTOM,
PSH_HINT_FLAG_ACTIVE = 4
} PSH_Hint_Flags;
#define psh_hint_is_active(x) (((x)->flags & PSH_HINT_FLAG_ACTIVE) != 0)
#define psh_hint_activate(x) (x)->flags |= PSH_HINT_FLAG_ACTIVE
#define psh_hint_deactivate(x) (x)->flags &= ~PSH_HINT_FLAG_ACTIVE
typedef struct PSH_HintRec_
{
FT_Int org_pos;
FT_Int org_len;
FT_Pos cur_pos;
FT_Pos cur_len;
FT_UInt flags;
PSH_Hint parent;
FT_Int order;
} PSH_HintRec;
/* this is an interpolation zone used for strong points */
/* weak points are interpolated according to their strong */
/* neighbours.. */
typedef struct PSH_ZoneRec_
{
FT_Fixed scale;
FT_Fixed delta;
FT_Pos min;
FT_Pos max;
} PSH_ZoneRec, *PSH_Zone;
typedef struct PSH_Hint_TableRec_
{
FT_UInt max_hints;
FT_UInt num_hints;
PSH_Hint hints;
PSH_Hint* sort;
PSH_Hint* sort_global;
FT_UInt num_zones;
PSH_Zone zones;
PSH_Zone zone;
PS_Mask_Table hint_masks;
PS_Mask_Table counter_masks;
} PSH_Hint_TableRec, *PSH_Hint_Table;
FT_LOCAL FT_Error
ps_hints_apply( PS_Hints ps_hints,
FT_Outline* outline,
PSH_Globals globals );
FT_END_HEADER
#endif /* __PS_HINTER_FITTER_H__ */
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