[haiku-appserver] Re: Overlay support

> For the first method only _one_ bitmap may have the 
> RESERVE_OVERLAY_CHANNEL flag set, because you want to use one ovelray 
> engine. Every time you set that flag when a bitmap is created, you ask 
> for an extra engine. Since most cards just have one engine (and there 
> are no drivers for multiple engines yet) creating the second and third 
> bitmap will _fail_.

Yes, as an application developer, I use that flag to check wether overlay is
available, because if it isn't that's just fine and I will use normal bitmap
mode. That's also how it is done in VLC. I wouldn't like to find out that
overlay was not available after all when I want to show it on screen the
first time.

Best regards,
-Stephan

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