http://bugs.winehq.org/show_bug.cgi?id=30056
--- Comment #9 from A. Fischl andreas.r.fischl.work@gmail.com 2012-03-07 13:09:09 CST --- I admit that I haven't considered VNC or X11 for scaling. Nevertheless, the problem just shifts from Wine not having an good scaling algorithm to a VNC client not having a good scaling algorithm (they just use a larger box of same-colored pixels for one original pixel, just like a LCD does when upscaling).
You already mentioned that the GDI32 component is not the place for this to be done. Is there another component which is more suited for this kind of work? Like directx-d3d?