XRender/Xcomposite semantics (issues?)

[Keith Packard]

On Thu, 2006-03-09 at 17:45 +0900, Carsten Haitzler wrote:

> hmm - it does? (redirect to a SEPARATE pixmap?) i was doing code for
> just this.

Well, that's what it's supposed to do at least, and I've tested it
occasionally. But, there can always be bugs, and I haven't tried it
recently.

>  wondering iof the drivers/x implementation should expand draws to RGB
> children of a ARGB ancestor to have alpha as 0xff?

Nope, Composite says to just draw the child off-screen and paint it into
the parent. That should always work; painting RGB to an ARGB window is
well defined, and should fill A with 1.

-- 
keith.packard at intel.com
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