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/src/freetype/src/pshinter/pshrec.h

https://bitbucket.org/cabalistic/ogredeps/
C++ Header | 176 lines | 75 code | 50 blank | 51 comment | 0 complexity | 5b73f68172c5bf43b5a7c5192cd915c4 MD5 | raw file
  1/***************************************************************************/
  2/*                                                                         */
  3/*  pshrec.h                                                               */
  4/*                                                                         */
  5/*    Postscript (Type1/Type2) hints recorder (specification).             */
  6/*                                                                         */
  7/*  Copyright 2001, 2002, 2003, 2006, 2008 by                              */
  8/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  9/*                                                                         */
 10/*  This file is part of the FreeType project, and may only be used,       */
 11/*  modified, and distributed under the terms of the FreeType project      */
 12/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
 13/*  this file you indicate that you have read the license and              */
 14/*  understand and accept it fully.                                        */
 15/*                                                                         */
 16/***************************************************************************/
 17
 18
 19  /**************************************************************************/
 20  /*                                                                        */
 21  /*  The functions defined here are called from the Type 1, CID and CFF    */
 22  /*  font drivers to record the hints of a given character/glyph.          */
 23  /*                                                                        */
 24  /*  The hints are recorded in a unified format, and are later processed   */
 25  /*  by the `optimizer' and `fitter' to adjust the outlines to the pixel   */
 26  /*  grid.                                                                 */
 27  /*                                                                        */
 28  /**************************************************************************/
 29
 30
 31#ifndef __PSHREC_H__
 32#define __PSHREC_H__
 33
 34
 35#include <ft2build.h>
 36#include FT_INTERNAL_POSTSCRIPT_HINTS_H
 37#include "pshglob.h"
 38
 39
 40FT_BEGIN_HEADER
 41
 42
 43  /*************************************************************************/
 44  /*************************************************************************/
 45  /*****                                                               *****/
 46  /*****                 GLYPH HINTS RECORDER INTERNALS                *****/
 47  /*****                                                               *****/
 48  /*************************************************************************/
 49  /*************************************************************************/
 50
 51  /* handle to hint record */
 52  typedef struct PS_HintRec_*  PS_Hint;
 53
 54  /* hint types */
 55  typedef enum  PS_Hint_Type_
 56  {
 57    PS_HINT_TYPE_1 = 1,
 58    PS_HINT_TYPE_2 = 2
 59
 60  } PS_Hint_Type;
 61
 62
 63  /* hint flags */
 64  typedef enum  PS_Hint_Flags_
 65  {
 66    PS_HINT_FLAG_GHOST  = 1,
 67    PS_HINT_FLAG_BOTTOM = 2
 68
 69  } PS_Hint_Flags;
 70
 71
 72  /* hint descriptor */
 73  typedef struct  PS_HintRec_
 74  {
 75    FT_Int   pos;
 76    FT_Int   len;
 77    FT_UInt  flags;
 78
 79  } PS_HintRec;
 80
 81
 82#define ps_hint_is_active( x )  ( (x)->flags & PS_HINT_FLAG_ACTIVE )
 83#define ps_hint_is_ghost( x )   ( (x)->flags & PS_HINT_FLAG_GHOST  )
 84#define ps_hint_is_bottom( x )  ( (x)->flags & PS_HINT_FLAG_BOTTOM )
 85
 86
 87  /* hints table descriptor */
 88  typedef struct  PS_Hint_TableRec_
 89  {
 90    FT_UInt  num_hints;
 91    FT_UInt  max_hints;
 92    PS_Hint  hints;
 93
 94  } PS_Hint_TableRec, *PS_Hint_Table;
 95
 96
 97  /* hint and counter mask descriptor */
 98  typedef struct  PS_MaskRec_
 99  {
100    FT_UInt   num_bits;
101    FT_UInt   max_bits;
102    FT_Byte*  bytes;
103    FT_UInt   end_point;
104
105  } PS_MaskRec, *PS_Mask;
106
107
108  /* masks and counters table descriptor */
109  typedef struct  PS_Mask_TableRec_
110  {
111    FT_UInt  num_masks;
112    FT_UInt  max_masks;
113    PS_Mask  masks;
114
115  } PS_Mask_TableRec, *PS_Mask_Table;
116
117
118 /* dimension-specific hints descriptor */
119  typedef struct  PS_DimensionRec_
120  {
121    PS_Hint_TableRec  hints;
122    PS_Mask_TableRec  masks;
123    PS_Mask_TableRec  counters;
124
125  } PS_DimensionRec, *PS_Dimension;
126
127
128  /* glyph hints descriptor                                */
129  /* dimension 0 => X coordinates + vertical hints/stems   */
130  /* dimension 1 => Y coordinates + horizontal hints/stems */
131  typedef struct  PS_HintsRec_
132  {
133    FT_Memory        memory;
134    FT_Error         error;
135    FT_UInt32        magic;
136    PS_Hint_Type     hint_type;
137    PS_DimensionRec  dimension[2];
138
139  } PS_HintsRec, *PS_Hints;
140
141  /* */
142
143  /* initialize hints recorder */
144  FT_LOCAL( FT_Error )
145  ps_hints_init( PS_Hints   hints,
146                 FT_Memory  memory );
147
148  /* finalize hints recorder */
149  FT_LOCAL( void )
150  ps_hints_done( PS_Hints  hints );
151
152  /* initialize Type1 hints recorder interface */
153  FT_LOCAL( void )
154  t1_hints_funcs_init( T1_Hints_FuncsRec*  funcs );
155
156  /* initialize Type2 hints recorder interface */
157  FT_LOCAL( void )
158  t2_hints_funcs_init( T2_Hints_FuncsRec*  funcs );
159
160
161#ifdef DEBUG_HINTER
162  extern PS_Hints  ps_debug_hints;
163  extern  int      ps_debug_no_horz_hints;
164  extern  int      ps_debug_no_vert_hints;
165#endif
166
167 /* */
168
169
170FT_END_HEADER
171
172
173#endif /* __PS_HINTER_RECORD_H__ */
174
175
176/* END */