kc3-lang/freetype/src/base/ftsnames.c

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

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• src/base/ftsnames.c

• /****************************************************************************
   *
   * ftsnames.c
   *
   *   Simple interface to access SFNT name tables (which are used
   *   to hold font names, copyright info, notices, etc.) (body).
   *
   *   This is _not_ used to retrieve glyph names!
   *
   * Copyright (C) 1996-2025 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.
   *
   */
  
  
  #include <freetype/internal/ftdebug.h>
  
  #include <freetype/ftsnames.h>
  #include <freetype/internal/tttypes.h>
  #include <freetype/internal/ftstream.h>
  
  
  #ifdef TT_CONFIG_OPTION_SFNT_NAMES
  
  
    /* documentation is in ftsnames.h */
  
    FT_EXPORT_DEF( FT_UInt )
    FT_Get_Sfnt_Name_Count( FT_Face  face )
    {
      return ( face && FT_IS_SFNT( face ) ) ? ((TT_Face)face)->num_names : 0;
    }
  
  
    /* documentation is in ftsnames.h */
  
    FT_EXPORT_DEF( FT_Error )
    FT_Get_Sfnt_Name( FT_Face       face,
                      FT_UInt       idx,
                      FT_SfntName  *aname )
    {
      FT_Error  error = FT_ERR( Invalid_Argument );
  
  
      if ( aname && face && FT_IS_SFNT( face ) )
      {
        TT_Face  ttface = (TT_Face)face;
  
  
        if ( idx < (FT_UInt)ttface->num_names )
        {
          TT_Name  entry = ttface->name_table.names + idx;
  
  
          /* load name on demand */
          if ( entry->stringLength > 0 && !entry->string )
          {
            FT_Memory  memory = face->memory;
            FT_Stream  stream = face->stream;
  
  
            if ( FT_QNEW_ARRAY ( entry->string, entry->stringLength ) ||
                 FT_STREAM_SEEK( entry->stringOffset )                ||
                 FT_STREAM_READ( entry->string, entry->stringLength ) )
            {
              FT_FREE( entry->string );
              entry->stringLength = 0;
            }
          }
  
          aname->platform_id = entry->platformID;
          aname->encoding_id = entry->encodingID;
          aname->language_id = entry->languageID;
          aname->name_id     = entry->nameID;
          aname->string      = (FT_Byte*)entry->string;
          aname->string_len  = entry->stringLength;
  
          error = FT_Err_Ok;
        }
      }
  
      return error;
    }
  
  
    /* documentation is in ftsnames.h */
  
    FT_EXPORT_DEF( FT_Error )
    FT_Get_Sfnt_LangTag( FT_Face          face,
                         FT_UInt          langID,
                         FT_SfntLangTag  *alangTag )
    {
      FT_Error  error = FT_ERR( Invalid_Argument );
  
  
      if ( alangTag && face && FT_IS_SFNT( face ) )
      {
        TT_Face  ttface = (TT_Face)face;
  
  
        if ( ttface->name_table.format != 1 )
          return FT_THROW( Invalid_Table );
  
        if ( langID > 0x8000U                                        &&
             langID - 0x8000U < ttface->name_table.numLangTagRecords )
        {
          TT_LangTag  entry = ttface->name_table.langTags +
                              ( langID - 0x8000U );
  
  
          /* load name on demand */
          if ( entry->stringLength > 0 && !entry->string )
          {
            FT_Memory  memory = face->memory;
            FT_Stream  stream = face->stream;
  
  
            if ( FT_QNEW_ARRAY ( entry->string, entry->stringLength ) ||
                 FT_STREAM_SEEK( entry->stringOffset )                ||
                 FT_STREAM_READ( entry->string, entry->stringLength ) )
            {
              FT_FREE( entry->string );
              entry->stringLength = 0;
            }
          }
  
          alangTag->string     = (FT_Byte*)entry->string;
          alangTag->string_len = entry->stringLength;
  
          error = FT_Err_Ok;
        }
      }
  
      return error;
    }
  
  
  #else /* !TT_CONFIG_OPTION_SFNT_NAMES */
  
  
    FT_EXPORT_DEF( FT_UInt )
    FT_Get_Sfnt_Name_Count( FT_Face  face )
    {
      FT_UNUSED( face );
  
      return 0;
    }
  
  
    FT_EXPORT_DEF( FT_Error )
    FT_Get_Sfnt_Name( FT_Face       face,
                      FT_UInt       idx,
                      FT_SfntName  *aname )
    {
      FT_UNUSED( face );
      FT_UNUSED( idx );
      FT_UNUSED( aname );
  
      return FT_THROW( Unimplemented_Feature );
    }
  
  
    FT_EXPORT_DEF( FT_Error )
    FT_Get_Sfnt_LangTag( FT_Face          face,
                         FT_UInt          langID,
                         FT_SfntLangTag  *alangTag )
    {
      FT_UNUSED( face );
      FT_UNUSED( langID );
      FT_UNUSED( alangTag );
  
      return FT_THROW( Unimplemented_Feature );
    }
  
  
  #endif /* !TT_CONFIG_OPTION_SFNT_NAMES */
  
  
  /* END */
  

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