Re: Bug in Alpha compositing

[Adam Fedor]

Georg Fleischmann wrote:
> Hi,
>
> I realized a new bug with alpha compositing. I found out that the problem  
> appeared with the changes in XGGState.m -setColor:state: and -setAlphaColor: in  
> May. If I use an earlier version of XGGState.m it works.
> As I don't have an idea of the changes and not much time at the moment, I  
> thought I just post what I know.

Well I could say a lot about this, but the short story is that alpha 
doesn't work that well in the xlib backend, and never will - it's just 
too much work.

But this did point out a bug in NSImage that I fixed, which should at 
least allow your simple case to work (as long as your composite 
destination doesn't have alpha in it also).


--
Adam Fedor, Digital Optics Corp.      | I'm glad I hate spinach, because
http://www.doc.com                    | if I didn't, I'd eat it, and you
                                      | know how I hate the stuff.