godot/thirdparty/freetype/src/type42/t42drivr.c

/****************************************************************************
 *
 * t42drivr.c
 *
 *   High-level Type 42 driver interface (body).
 *
 * Copyright (C) 2002-2023 by
 * Roberto Alameda.
 *
 * 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.
 *
 */


  /**************************************************************************
   *
   * This driver implements Type42 fonts as described in the
   * Technical Note #5012 from Adobe, with these limitations:
   *
   * 1) CID Fonts are not currently supported.
   * 2) Incremental fonts making use of the GlyphDirectory keyword
   *    will be loaded, but the rendering will be using the TrueType
   *    tables.
   * 3) As for Type1 fonts, CDevProc is not supported.
   * 4) The Metrics dictionary is not supported.
   * 5) AFM metrics are not supported.
   *
   * In other words, this driver supports Type42 fonts derived from
   * TrueType fonts in a non-CID manner, as done by usual conversion
   * programs.
   *
   */


#include "t42drivr.h"
#include "t42objs.h"
#include "t42error.h"
#include <freetype/internal/ftdebug.h>

#include <freetype/internal/services/svfntfmt.h>
#include <freetype/internal/services/svgldict.h>
#include <freetype/internal/services/svpostnm.h>
#include <freetype/internal/services/svpsinfo.h>

#undef  FT_COMPONENT
#define FT_COMPONENT …


  /*
   *
   * GLYPH DICT SERVICE
   *
   */

  FT_CALLBACK_DEF( FT_Error )
  t42_get_glyph_name( FT_Face     face,        /* T42_Face */
                      FT_UInt     glyph_index,
                      FT_Pointer  buffer,
                      FT_UInt     buffer_max )
  { … }


  FT_CALLBACK_DEF( FT_UInt )
  t42_get_name_index( FT_Face           face,        /* T42_Face */
                      const FT_String*  glyph_name )
  { … }


  static const FT_Service_GlyphDictRec  t42_service_glyph_dict = …;


  /*
   *
   * POSTSCRIPT NAME SERVICE
   *
   */

  FT_CALLBACK_DEF( const char* )
  t42_get_ps_font_name( FT_Face  face )    /* T42_Face */
  { … }


  static const FT_Service_PsFontNameRec  t42_service_ps_font_name = …;


  /*
   *
   * POSTSCRIPT INFO SERVICE
   *
   */

  FT_CALLBACK_DEF( FT_Error )
  t42_ps_get_font_info( FT_Face          face,
                        PS_FontInfoRec*  afont_info )
  { … }


  FT_CALLBACK_DEF( FT_Error )
  t42_ps_get_font_extra( FT_Face           face,
                         PS_FontExtraRec*  afont_extra )
  { … }


  FT_CALLBACK_DEF( FT_Int )
  t42_ps_has_glyph_names( FT_Face  face )
  { … }


  static const FT_Service_PsInfoRec  t42_service_ps_info = …;


  /*
   *
   * SERVICE LIST
   *
   */

  static const FT_ServiceDescRec  t42_services[] = …;


  FT_CALLBACK_DEF( FT_Module_Interface )
  T42_Get_Interface( FT_Module         module,
                     const FT_String*  t42_interface )
  { … }


  const FT_Driver_ClassRec  t42_driver_class = …;


/* END */