http://bugs.winehq.org/show_bug.cgi?id=21363
Roderick Colenbrander thunderbird2k@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |thunderbird2k@gmail.com
--- Comment #5 from Roderick Colenbrander thunderbird2k@gmail.com 2010-04-28 06:40:12 --- The game uses texture compression and likely wants to use a S3TC format. Due to patent reasons none of the open source drivers export it.
The hardware supports decompresson of these texture formats properly but in order to comply to the texture compression specifications also software compression is needed (which is problematic due to the patent). Using driconf you can enable the S3TC texture compression extension which will offload decompression to the hardware which is likely enough for this game.