Exemple #1
0
  cff_index_get_name( CFF_Font  font,
                      FT_UInt   element )
  {
    CFF_Index   idx = &font->name_index;
    FT_Memory   memory = idx->stream->memory;
    FT_Byte*    bytes;
    FT_ULong    byte_len;
    FT_Error    error;
    FT_String*  name = 0;


    error = cff_index_access_element( idx, element, &bytes, &byte_len );
    if ( error )
      goto Exit;

    if ( !FT_ALLOC( name, byte_len + 1 ) )
    {
      FT_MEM_COPY( name, bytes, byte_len );
      name[byte_len] = 0;
    }
    cff_index_forget_element( idx, &bytes );

  Exit:
    return name;
  }
Exemple #2
0
  cff_get_glyph_data( TT_Face    face,
                      FT_UInt    glyph_index,
                      FT_Byte**  pointer,
                      FT_ULong*  length )
  {
#ifdef FT_CONFIG_OPTION_INCREMENTAL
    /* For incremental fonts get the character data using the */
    /* callback function.                                     */
    if ( face->root.internal->incremental_interface )
    {
      FT_Data   data;
      FT_Error  error =
                  face->root.internal->incremental_interface->funcs->get_glyph_data(
                    face->root.internal->incremental_interface->object,
                    glyph_index, &data );


      *pointer = (FT_Byte*)data.pointer;
      *length  = (FT_ULong)data.length;

      return error;
    }
    else
#endif /* FT_CONFIG_OPTION_INCREMENTAL */

    {
      CFF_Font  cff = (CFF_Font)(face->extra.data);


      return cff_index_access_element( &cff->charstrings_index, glyph_index,
                                       pointer, length );
    }
  }
Exemple #3
0
  static FT_Error
  cff_subfont_load( CFF_SubFont  font,
                    CFF_Index    idx,
                    FT_UInt      font_index,
                    FT_Stream    stream,
                    FT_ULong     base_offset )
  {
    FT_Error         error;
    CFF_ParserRec    parser;
    FT_Byte*         dict = NULL;
    FT_ULong         dict_len;
    CFF_FontRecDict  top  = &font->font_dict;
    CFF_Private      priv = &font->private_dict;


    cff_parser_init( &parser, CFF_CODE_TOPDICT, &font->font_dict );

    /* set defaults */
    FT_MEM_ZERO( top, sizeof ( *top ) );

    top->underline_position  = -100L << 16;
    top->underline_thickness = 50L << 16;
    top->charstring_type     = 2;
    top->font_matrix.xx      = 0x10000L;
    top->font_matrix.yy      = 0x10000L;
    top->cid_count           = 8720;

    /* we use the implementation specific SID value 0xFFFF to indicate */
    /* missing entries                                                 */
    top->version             = 0xFFFFU;
    top->notice              = 0xFFFFU;
    top->copyright           = 0xFFFFU;
    top->full_name           = 0xFFFFU;
    top->family_name         = 0xFFFFU;
    top->weight              = 0xFFFFU;
    top->embedded_postscript = 0xFFFFU;

    top->cid_registry        = 0xFFFFU;
    top->cid_ordering        = 0xFFFFU;
    top->cid_font_name       = 0xFFFFU;

    error = cff_index_access_element( idx, font_index, &dict, &dict_len );
    if ( !error )
      error = cff_parser_run( &parser, dict, dict + dict_len );

    cff_index_forget_element( idx, &dict );

    if ( error )
      goto Exit;

    /* if it is a CID font, we stop there */
    if ( top->cid_registry != 0xFFFFU )
      goto Exit;

    /* parse the private dictionary, if any */
    if ( top->private_offset && top->private_size )
    {
      /* set defaults */
      FT_MEM_ZERO( priv, sizeof ( *priv ) );

      priv->blue_shift       = 7;
      priv->blue_fuzz        = 1;
      priv->lenIV            = -1;
      priv->expansion_factor = (FT_Fixed)( 0.06 * 0x10000L );
      priv->blue_scale       = (FT_Fixed)( 0.039625 * 0x10000L * 1000 );

      cff_parser_init( &parser, CFF_CODE_PRIVATE, priv );

      if ( FT_STREAM_SEEK( base_offset + font->font_dict.private_offset ) ||
           FT_FRAME_ENTER( font->font_dict.private_size )                 )
        goto Exit;

      error = cff_parser_run( &parser,
                              (FT_Byte*)stream->cursor,
                              (FT_Byte*)stream->limit );
      FT_FRAME_EXIT();
      if ( error )
        goto Exit;

      /* ensure that `num_blue_values' is even */
      priv->num_blue_values &= ~1;
    }

    /* read the local subrs, if any */
    if ( priv->local_subrs_offset )
    {
      if ( FT_STREAM_SEEK( base_offset + top->private_offset +
                           priv->local_subrs_offset ) )
        goto Exit;

      error = cff_index_init( &font->local_subrs_index, stream, 1 );
      if ( error )
        goto Exit;

      font->num_local_subrs = font->local_subrs_index.count;
      error = cff_index_get_pointers( &font->local_subrs_index,
                                      &font->local_subrs );
      if ( error )
        goto Exit;
    }

  Exit:
    return error;
  }
Exemple #4
0
  static FT_Error
  cff_subfont_load( CFF_SubFont  font,
                    CFF_Index    idx,
                    FT_UInt      font_index,
                    FT_Stream    stream,
                    FT_ULong     base_offset )
  {
    FT_Error         error;
    CFF_ParserRec    parser;
    FT_Byte*         dict;
    FT_ULong         dict_len;
    CFF_FontRecDict  top  = &font->font_dict;
    CFF_Private      priv = &font->private_dict;


    cff_parser_init( &parser, CFF_CODE_TOPDICT, &font->font_dict );

    /* set defaults */
    FT_MEM_ZERO( top, sizeof ( *top ) );

    top->underline_position  = -100L << 16;
    top->underline_thickness = 50L << 16;
    top->charstring_type     = 2;
    top->font_matrix.xx      = 0x10000L;
    top->font_matrix.yy      = 0x10000L;
    top->cid_count           = 8720;

    error = cff_index_access_element( idx, font_index, &dict, &dict_len ) ||
            cff_parser_run( &parser, dict, dict + dict_len );

    cff_index_forget_element( idx, &dict );

    if ( error )
      goto Exit;

    /* if it is a CID font, we stop there */
    if ( top->cid_registry )
      goto Exit;

    /* parse the private dictionary, if any */
    if ( top->private_offset && top->private_size )
    {
      /* set defaults */
      FT_MEM_ZERO( priv, sizeof ( *priv ) );

      priv->blue_shift       = 7;
      priv->blue_fuzz        = 1;
      priv->lenIV            = -1;
      priv->expansion_factor = (FT_Fixed)( 0.06 * 0x10000L );
      priv->blue_scale       = (FT_Fixed)( 0.039625 * 0x10000L * 1000 );

      cff_parser_init( &parser, CFF_CODE_PRIVATE, priv );

      if ( FT_STREAM_SEEK( base_offset + font->font_dict.private_offset ) ||
           FT_FRAME_ENTER( font->font_dict.private_size )                 )
        goto Exit;

      error = cff_parser_run( &parser,
                              (FT_Byte*)stream->cursor,
                              (FT_Byte*)stream->limit );
      FT_FRAME_EXIT();
      if ( error )
        goto Exit;
    }

    /* read the local subrs, if any */
    if ( priv->local_subrs_offset )
    {
      if ( FT_STREAM_SEEK( base_offset + top->private_offset +
                           priv->local_subrs_offset ) )
        goto Exit;

      error = cff_new_index( &font->local_subrs_index, stream, 1 );
      if ( error )
        goto Exit;

      font->num_local_subrs = font->local_subrs_index.count;
      error = cff_index_get_pointers( &font->local_subrs_index,
                                      &font->local_subrs );
      if ( error )
        goto Exit;
    }

  Exit:
    return error;
  }