godot/thirdparty/freetype/src/cid/cidload.c

/****************************************************************************
 *
 * cidload.c
 *
 *   CID-keyed Type1 font loader (body).
 *
 * Copyright (C) 1996-2023 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.
 *
 */


#include <ft2build.h>
#include <freetype/internal/ftdebug.h>
#include FT_CONFIG_CONFIG_H
#include <freetype/ftmm.h>
#include <freetype/internal/t1types.h>
#include <freetype/internal/psaux.h>

#include "cidload.h"

#include "ciderrs.h"


  /**************************************************************************
   *
   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
   * messages during execution.
   */
#undef  FT_COMPONENT
#define FT_COMPONENT …


  /* read a single offset */
  FT_LOCAL_DEF( FT_ULong )
  cid_get_offset( FT_Byte*  *start,
                  FT_UInt    offsize )
  { … }


  /*************************************************************************/
  /*************************************************************************/
  /*****                                                               *****/
  /*****                    TYPE 1 SYMBOL PARSING                      *****/
  /*****                                                               *****/
  /*************************************************************************/
  /*************************************************************************/


  static FT_Error
  cid_load_keyword( CID_Face        face,
                    CID_Loader*     loader,
                    const T1_Field  keyword )
  { … }


  FT_CALLBACK_DEF( void )
  cid_parse_font_matrix( FT_Face  face,     /* CID_Face */
                         void*    parser_ )
  { … }


  FT_CALLBACK_DEF( void )
  parse_fd_array( FT_Face  face,     /* CID_Face */
                  void*    parser_ )
  { … }


  /* By mistake, `expansion_factor' appears both in PS_PrivateRec */
  /* and CID_FaceDictRec (both are public header files and can't  */
  /* be thus changed).  We simply copy the value.                 */

  FT_CALLBACK_DEF( void )
  parse_expansion_factor( FT_Face  face,    /* CID_Face */
                          void*    parser_ )
  { … }


  /* By mistake, `CID_FaceDictRec' doesn't contain a field for the */
  /* `FontName' keyword.  FreeType doesn't need it, but it is nice */
  /* to catch it for producing better trace output.                */

  FT_CALLBACK_DEF( void )
  parse_font_name( FT_Face  face,     /* CID_Face */
                   void*    parser_ )
  { … }


  static
  const T1_FieldRec  cid_field_records[] = …;


  static FT_Error
  cid_parse_dict( CID_Face     face,
                  CID_Loader*  loader,
                  FT_Byte*     base,
                  FT_ULong     size )
  { … }


  /* read the subrmap and the subrs of each font dict */
  static FT_Error
  cid_read_subrs( CID_Face  face )
  { … }


  static void
  cid_init_loader( CID_Loader*  loader,
                   CID_Face     face )
  { … }


  static  void
  cid_done_loader( CID_Loader*  loader )
  { … }


  static FT_Error
  cid_hex_to_binary( FT_Byte*   data,
                     FT_ULong   data_len,
                     FT_ULong   offset,
                     CID_Face   face,
                     FT_ULong*  data_written )
  { … }


  FT_LOCAL_DEF( FT_Error )
  cid_face_open( CID_Face  face,
                 FT_Int    face_index )
  { … }


/* END */