[Bug 38274] White water in Heroes VI

https://bugs.winehq.org/show_bug.cgi?id=38274

--- Comment #11 from Stefan Dösinger  ---
We're avoiding decoding them as well. The copyright notice you posted is about
the license of libtxc_dxtn. Having this library doesn't grant you a right to
use the patent.

The most realistic option is to use a library called Nvidia texture tools.
Nvidia has an agreement with the owner of the patent (no idea who that is these
days) that allow others to use this library without licensing the patent:
https://code.google.com/p/nvidia-texture-tools/wiki/FAQ . Note that despite the
name this library doesn't depend on Nvidia GPUs.

But still, we maybe don't need to decompress the dxtn blocks for volumes,
"only" shuffle them around in memory.