wine users - Nov 2010 - Performance problems with bitmaphandling on mac (only)

Hello,

i am trying to get an application to run on mac. It already runs fine on linux
(ubuntu and freebsd), but on mac I've severe performance issues using
bitmaps. I tracked it down that it has something to do with hbitmap using the
api for creating a 10 mega pixel image and saving as a bitmap file.

On windows this takes  about 1.400 ms, on ubuntu 2.000 ms but on mac
approximatly 30.000 (with 100% CPU usage). I already did researches in the
newsgroups and assume that there are conversions taking place. If I change the
bit depth to 16 I can reduce the time to approx. 8.000 ms on mac also.

I know that there's a project of a DIB Engine. But as it seems (studying
other posts), its not compatible with mac os yet?

Conditions:
- I can change the source code of the app as it is an company internal app
written in Delphi
- its not possible to change to 16bit bitmaps in the application as it is an
imaging application
- its not possible using a GDI+ library instead, because there would be too much
changes


Any ideas would be greatly appreciated as I got stucked at this point.

thanks,
Matthias

what version of Mac OS X?  What version of X11... if your using Apple's
default X11, you shouldn't be, its pretty buggy.

Xquartz builds are much better.
http://xquartz.macosforge.org/