{if !isset($folder)}
    {assign var=folder value="raw"}
{/if}
{if $folder ne 'raw'}
    {assign var=ext value=".jpg"}
{/if}
{*<img src="{data_URI("{$smarty.const.CURRENT_SOURCE_FOLDER}/engine/files/{$folder}/{$showFile->data.file_user}/{$showFile->data.file_hash}/{$showFile->data.file_name}{$ext}")}" alt="{$alt}" />*}
<img src="{data_URI({$showFile->getURL($folder)})}" alt="{$alt}" />