2D antialiased graphics using OpenGL

[Keith Packard]

Around 20 o'clock on Dec 11, Adam Rice wrote:

> Hate to be the bearer of bad news, but the "anti-aliased with sub-pixel 
> sampling" example isn't.

Hmm.  I wonder what happened to that sample; I can't find the originals at 
this point.  Oh well, I think the other two samples demonstrate the point 
that shifting text by one sub pixel doesn't make color fringes appear.

> Incidentally, is there a good reason why an application would use a 
> mixture of subpixel and non-subpixel anti-aliasing, or are my KDE 
> applications just crackers (or misconfigured)?

Yes, whenever you mix bitmap fonts with scalable fonts, the combination 
will force the scalable fonts to be drawn with regular anti-aliasing 
rather than ARGB because of a bug in the Render extension.  I think this 
could be fixed, but haven't gotten around to looking at it for quite some 
time.

-keith