http://bugs.winehq.org/show_bug.cgi?id=22396
--- Comment #6 from Vincent Povirk madewokherd@gmail.com 2011-03-17 12:37:21 CDT --- Can you retest this with master? Texture brush rendering has been rewritten and should be more accurate.
It should at least be the correct size now. It might still be misaligned because we're ignoring the rendering origin.