/***************************************************************************/ | |
/* */ | |
/* pshrec.h */ | |
/* */ | |
/* Postscript (Type1/Type2) hints recorder (specification). */ | |
/* */ | |
/* Copyright 2001-2015 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. */ | |
/* */ | |
/***************************************************************************/ | |
/**************************************************************************/ | |
/* */ | |
/* 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 `optimizer' and `fitter' to adjust the outlines to the pixel */ | |
/* grid. */ | |
/* */ | |
/**************************************************************************/ | |
#ifndef __PSHREC_H__ | |
#define __PSHREC_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_ | |
{ | |
PS_HINT_TYPE_1 = 1, | |
PS_HINT_TYPE_2 = 2 | |
} PS_Hint_Type; | |
/* hint flags */ | |
#define PS_HINT_FLAG_GHOST 1U | |
#define PS_HINT_FLAG_BOTTOM 2U | |
/* 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; | |
/* glyph hints descriptor */ | |
/* dimension 0 => X coordinates + vertical hints/stems */ | |
/* dimension 1 => Y coordinates + horizontal hints/stems */ | |
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; | |
/* */ | |
/* initialize hints recorder */ | |
FT_LOCAL( void ) | |
ps_hints_init( PS_Hints hints, | |
FT_Memory memory ); | |
/* finalize hints recorder */ | |
FT_LOCAL( void ) | |
ps_hints_done( PS_Hints hints ); | |
/* initialize Type1 hints recorder interface */ | |
FT_LOCAL( void ) | |
t1_hints_funcs_init( T1_Hints_FuncsRec* funcs ); | |
/* initialize 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__ */ | |
/* END */ |