kc3-lang/freetype/src/pshinter/pshrec.h

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  Date : 2025-09-06T06:14:03
  

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• src/pshinter/pshrec.h

• /****************************************************************************
   *
   * pshrec.h
   *
   *   Postscript (Type1/Type2) hints recorder (specification).
   *
   * Copyright (C) 2001-2025 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 <freetype/internal/pshints.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 /* PSHREC_H_ */
  
  
  /* END */
  

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