[compiz] color management spec

[Tomas Carnecky]

Danny Baumann wrote:
> I strongly dislike supporting subwindow ID/profile tuples. The task of
> window and compositing managers is and always has been to manage and draw
> _toplevel_ windows, not subwindows. I don't really think that adding a
> subwindow management infrastructure to compositing managers just for saving
> some lines of code in the toolkit (and not even all of them) is an overly
> good idea.

It's not just for 'saving some lines of code in the toolkit'. Color 
management would require significantly more code in the toolkit and 
would most likely be slower then if it is done in the compositing manager.

How the application communicates with the compositing manager and 
specifies the regions of a window is still an open question. I suggested 
using subwindows because that seemed a good idea at that time. But now 
that I see that qt doesn't use them, I'll have to come up with a 
different approach.

tom