http://bugs.winehq.org/show_bug.cgi?id=35032
--- Comment #2 from josch j.schauer@email.de 2013-12-03 12:44:49 CST --- I compiled the most recent mesa version from git as of now: 5b331f6fcbf226f18e0c517ffdce30a39bb92982 from 2013-11-23 which was released after mesa 10.0.
It did not make any difference in the effect I observed.