Re: animate incredibly slow compared to 21.3

[Jan D.]

> On Sat, 12 Mar 2005 06:13:40 +0100, Jan D. <address@hidden> wrote:
> > Myabe this is what Emacs should do, create a pixmap, do its drawing
> > there, and then XCopyArea it to the window when done.  Emacs already
> > does this for images.  It is not hard to implement, just replace the X
> > window in all X calls with the pixmap.  The downside is that it uses 
> > up
> > more memory in the server.
>
> I'm not sure what the point would be though -- emacs doesn't have any
> real problems with flicker etc (line-move aside, I'm assuming that's a
> temporary aberation until a better scheme for doing visual
> calculations is implemented).

If a better scheme is found, there is no point.  The main point 
otherwise would be that the redisplay calculations could be made very 
simple, almost non-existant.

        Jan D.