include/internal/services/svpscmap.h

/***************************************************************************/
/*                                                                         */
/*  svpscmap.h                                                             */
/*                                                                         */
/*    The FreeType PostScript charmap service (specification).             */
/*                                                                         */
/*  Copyright 2003, 2006, 2009, 2012 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.                                        */
/*                                                                         */
/***************************************************************************/


#ifndef __SVPSCMAP_H__
#define __SVPSCMAP_H__

#include FT_INTERNAL_OBJECTS_H


FT_BEGIN_HEADER


#define FT_SERVICE_ID_POSTSCRIPT_CMAPS  "postscript-cmaps"


  /*
   *  Adobe glyph name to unicode value.
   */
  typedef FT_UInt32
  (*PS_Unicode_ValueFunc)( const char*  glyph_name );

  /*
   *  Macintosh name id to glyph name.  NULL if invalid index.
   */
  typedef const char*
  (*PS_Macintosh_NameFunc)( FT_UInt  name_index );

  /*
   *  Adobe standard string ID to glyph name.  NULL if invalid index.
   */
  typedef const char*
  (*PS_Adobe_Std_StringsFunc)( FT_UInt  string_index );


  /*
   *  Simple unicode -> glyph index charmap built from font glyph names
   *  table.
   */
  typedef struct  PS_UniMap_
  {
    FT_UInt32  unicode;      /* bit 31 set: is glyph variant */
    FT_UInt    glyph_index;

  } PS_UniMap;


  typedef struct PS_UnicodesRec_*  PS_Unicodes;

  typedef struct  PS_UnicodesRec_
  {
    FT_CMapRec  cmap;
    FT_UInt     num_maps;
    PS_UniMap*  maps;

  } PS_UnicodesRec;


  /*
   *  A function which returns a glyph name for a given index.  Returns
   *  NULL if invalid index.
   */
  typedef const char*
  (*PS_GetGlyphNameFunc)( FT_Pointer  data,
                          FT_UInt     string_index );

  /*
   *  A function used to release the glyph name returned by
   *  PS_GetGlyphNameFunc, when needed
   */
  typedef void
  (*PS_FreeGlyphNameFunc)( FT_Pointer  data,
                           const char*  name );

  typedef FT_Error
  (*PS_Unicodes_InitFunc)( FT_Memory             memory,
                           PS_Unicodes           unicodes,
                           FT_UInt               num_glyphs,
                           PS_GetGlyphNameFunc   get_glyph_name,
                           PS_FreeGlyphNameFunc  free_glyph_name,
                           FT_Pointer            glyph_data );

  typedef FT_UInt
  (*PS_Unicodes_CharIndexFunc)( PS_Unicodes  unicodes,
                                FT_UInt32    unicode );

  typedef FT_UInt32
  (*PS_Unicodes_CharNextFunc)( PS_Unicodes  unicodes,
                               FT_UInt32   *unicode );


  FT_DEFINE_SERVICE( PsCMaps )
  {
    PS_Unicode_ValueFunc       unicode_value;

    PS_Unicodes_InitFunc       unicodes_init;
    PS_Unicodes_CharIndexFunc  unicodes_char_index;
    PS_Unicodes_CharNextFunc   unicodes_char_next;

    PS_Macintosh_NameFunc      macintosh_name;
    PS_Adobe_Std_StringsFunc   adobe_std_strings;
    const unsigned short*      adobe_std_encoding;
    const unsigned short*      adobe_expert_encoding;
  };


#ifndef FT_CONFIG_OPTION_PIC

#define FT_DEFINE_SERVICE_PSCMAPSREC( class_,                               \
                                      unicode_value_,                       \
                                      unicodes_init_,                       \
                                      unicodes_char_index_,                 \
                                      unicodes_char_next_,                  \
                                      macintosh_name_,                      \
                                      adobe_std_strings_,                   \
                                      adobe_std_encoding_,                  \
                                      adobe_expert_encoding_ )              \
  static const FT_Service_PsCMapsRec  class_ =                              \
  {                                                                         \
    unicode_value_, unicodes_init_,                                         \
    unicodes_char_index_, unicodes_char_next_, macintosh_name_,             \
    adobe_std_strings_, adobe_std_encoding_, adobe_expert_encoding_         \
  };

#else /* FT_CONFIG_OPTION_PIC */

#define FT_DEFINE_SERVICE_PSCMAPSREC( class_,                               \
                                      unicode_value_,                       \
                                      unicodes_init_,                       \
                                      unicodes_char_index_,                 \
                                      unicodes_char_next_,                  \
                                      macintosh_name_,                      \
                                      adobe_std_strings_,                   \
                                      adobe_std_encoding_,                  \
                                      adobe_expert_encoding_ )              \
  void                                                                      \
  FT_Init_Class_ ## class_( FT_Library              library,                \
                            FT_Service_PsCMapsRec*  clazz )                 \
  {                                                                         \
    FT_UNUSED( library );                                                   \
                                                                            \
    clazz->unicode_value         = unicode_value_;                          \
    clazz->unicodes_init         = unicodes_init_;                          \
    clazz->unicodes_char_index   = unicodes_char_index_;                    \
    clazz->unicodes_char_next    = unicodes_char_next_;                     \
    clazz->macintosh_name        = macintosh_name_;                         \
    clazz->adobe_std_strings     = adobe_std_strings_;                      \
    clazz->adobe_std_encoding    = adobe_std_encoding_;                     \
    clazz->adobe_expert_encoding = adobe_expert_encoding_;                  \
  }

#endif /* FT_CONFIG_OPTION_PIC */

  /* */


FT_END_HEADER


#endif /* __SVPSCMAP_H__ */


/* END */