Emmanuel's code is available from Sourceforge. It is a good starting point for this. If you want, send me what you have so far for testing purposes. It would be great to have a native MacOSX windowing system.
James McKenzie
The design of the old quartz driver is not correct. I remember that Alexandre commented that a lot of code which was in it doesn't make sense for a quartz driver but only for X11. Before a quartz driver can be written we really need a dib engine. It will make writing another driver much easier and much more code would be shared.
Thinking a few steps further I also think that at some point the current X11 driver needs to be redesigned for modern windows version (we would get a classic winex11 and a modern one). The modern one would in my opinion only be responsible for creating windows, font rendering but the rest would all be done using OpenGL. This way the rendering code could also work on OSX and only window management stuff would be needed.
Roderick