http://bugs.winehq.org/show_bug.cgi?id=421
------- Additional Comments From fgouget@codeweavers.com 2005-05-10 11:44 ------- Wine still needs a DIB engine and this is blocking quite a few things (e.g. printing problem for transparent bitmap in PowerPoint, PowerPoint animation performance issues, but there are many more issues).
TransGaming once posted a patch implementing a very incomplete DIB engine. It was not merged in Wine due to issues with the approach that was used. I'm not sure where this patch is now.
More recently ReactOS has been offering code. Steven said: --- Note: I don't know if its relevant or not but one of the ReactOS developers Ge van Geldorp has been working on a utility to autogenerate parts of the DIB Engine that's in ReactOS and has offered to license his work under the LGPL. According to my discussions with him only certain operations are supported though. ---
A bit of searching in the wine-devel archives would probably turn up a URL to the relevant code.