;       out->by_left -= 8;
    }
}
//------------------------------------------------------------------------------
VOID do_encode( PBUFFER_DATA in, PBUFFER_DATA out, PLZW_DATA lzw)
{
    WORD prefix;
    while( in->index != in->top )
    {
        if( !in_table(lzw) )
        {
                // current code not in code table
                // then add it to table and output prefix


                insert_table(lzw);
                prefix = lzw->suffix;
                output_code( lzw->prefix ,out ,lzw );
                lzw->code++;

                if( lzw->code == (WORD)1<< lzw->cur_code_len )
                {
                    // code reached current code top(1<<cur_code_len)
                    // then current code length add one
     lzw->cur_code_len++;
     if( lzw->cur_code_len == CODE_LEN + 1 )
     {
      re_init_lzw( lzw );
     }

                }
        }
        else
        {
                // current code already in code table
                // then output nothing
                prefix = get_code(lzw);

        }
        lzw->prefix = prefix;
        lzw->suffix = in->lp_buffer[ in->index++ ];
    }
}

//------------------------------------------------------------------------------
VOID encode(