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/***************************************************************************/
/* */
/* pshrec.h */
/* */
/* Postscript (Type1/Type2) hints recorder. */
/* */
/* 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. */
/* */
/* */
/* The functions defined here are called from the Type 1, CID and CFF */
/* font drivers to record the hints of a given character/glyph. */
/* */
/* The hints are recorded in a unified format, and are later processed */
/* by the "optimiser" and "fitter" to adjust the outlines to the pixel */
/* grid. */
/* */
/***************************************************************************/
#ifndef __PS_HINTER_RECORD_H__
#define __PS_HINTER_RECORD_H__
#include <ft2build.h>
#include FT_INTERNAL_POSTSCRIPT_HINTS_H
#include "pshglob.h"
FT_BEGIN_HEADER
/**********************************************************************/
/**********************************************************************/
/***** *****/
/***** GLYPH HINTS RECORDER INTERNALS *****/
/***** *****/
/**********************************************************************/
/**********************************************************************/
/* handle to hint record */
typedef struct PS_HintRec_* PS_Hint;
/* hint types */
typedef enum
{
PS_HINT_TYPE_1 = 1,
PS_HINT_TYPE_2 = 2
} PS_Hint_Type;
/* hint flags */
typedef enum
{
PS_HINT_FLAG_GHOST = 1,
PS_HINT_FLAG_BOTTOM = 2
} PS_Hint_Flags;
/* hint descriptor */
typedef struct PS_HintRec_
{
FT_Int pos;
FT_Int len;
FT_UInt flags;
} PS_HintRec;
#define ps_hint_is_active(x) ((x)->flags & PS_HINT_FLAG_ACTIVE)
#define ps_hint_is_ghost(x) ((x)->flags & PS_HINT_FLAG_GHOST)
#define ps_hint_is_bottom(x) ((x)->flags & PS_HINT_FLAG_BOTTOM)
/* hints table descriptor */
typedef struct PS_Hint_TableRec_
{
FT_UInt num_hints;
FT_UInt max_hints;
PS_Hint hints;
} PS_Hint_TableRec, *PS_Hint_Table;
/* hint and counter mask descriptor */
typedef struct PS_MaskRec_
{
FT_UInt num_bits;
FT_UInt max_bits;
FT_Byte* bytes;
FT_UInt end_point;
} PS_MaskRec, *PS_Mask;
/* masks and counters table descriptor */
typedef struct PS_Mask_TableRec_
{
FT_UInt num_masks;
FT_UInt max_masks;
PS_Mask masks;
} PS_Mask_TableRec, *PS_Mask_Table;
/* dimension-specific hints descriptor */
typedef struct PS_DimensionRec_
{
PS_Hint_TableRec hints;
PS_Mask_TableRec masks;
PS_Mask_TableRec counters;
} PS_DimensionRec, *PS_Dimension;
/* magic value used within PS_HintsRec */
#define PS_HINTS_MAGIC 0x68696e74 /* "hint" */
/* glyph hints descriptor */
typedef struct PS_HintsRec_
{
FT_Memory memory;
FT_Error error;
FT_UInt32 magic;
PS_Hint_Type hint_type;
PS_DimensionRec dimension[2];
} PS_HintsRec, *PS_Hints;
/* */
/* initialise hints recorder */
FT_LOCAL FT_Error
ps_hints_init( PS_Hints hints,
FT_Memory memory );
/* finalize hints recorder */
FT_LOCAL void
ps_hints_done( PS_Hints hints );
/* initialise Type1 hints recorder interface */
FT_LOCAL void
t1_hints_funcs_init( T1_Hints_FuncsRec* funcs );
/* initialise Type2 hints recorder interface */
FT_LOCAL void
t2_hints_funcs_init( T2_Hints_FuncsRec* funcs );
#ifdef DEBUG_HINTER
extern PS_Hints ps_debug_hints;
extern int ps_debug_no_horz_hints;
extern int ps_debug_no_vert_hints;
#endif
/* */
FT_END_HEADER
#endif /* __PS_HINTER_RECORD_H__ */
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