[haiku-appserver] Re: another issue. ClipToPicture.
- From: "DarkWyrm" <bpmagic@xxxxxxxxxxxxxxx>
- To: haiku-appserver@xxxxxxxxxxxxx
- Date: Thu, 28 Oct 2004 18:16:58 -0400 EDT
Here's a quote from an e-mail I have from a while ago when I asked
George Hoffman that question:
> Well, in a drawing model that was a little better defined, in terms
> of
> hit-rules, etc. these could be done in a number of ways... generating
> paths from the primitives and then using path-based clipping, for
> example.
>
> The BeOS drawing model was never unified enough to be able to do
> something like this, so ClipToPicture instead draws into a special
> "accelerated" canvas that takes the pixel spans that are generated
> and
> converts them into BRegion rectangles and merges them with everything
> that has been drawn thus far. That BRegion (or its inverse) is then
> used to clip the drawing.
In a lot of ways our server is a completely different animal from R5's,
but at first glance I think that this doesn't sound too bad for us.
Thoughts, guys?
--DW
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