[haiku-3rdparty-dev] Re: Double-Buffering in View::Draw
- From: Ingo Weinhold <ingo_weinhold@xxxxxx>
- To: haiku-3rdparty-dev@xxxxxxxxxxxxx
- Date: Thu, 30 Dec 2010 22:49:34 +0100
On 2010-12-30 at 22:12:12 [+0100], Stephan Assmus <superstippi@xxxxxx> wrote:
> All these tips apply to BeOS. On Haiku, drawing is usually double
> bufferd. IIRC, even letting the app_server draw the background would not
> normally result in flicker, except if the draw request was caused by an
> expose event (i.e. one window moving or disappearing which results in
> another window to be exposed).
Interesting. I knew about the double buffering, but I didn't think it was
that aggressive. Am I assuming correctly that the back buffer regions are
only marked clean (and copied to the front buffer) after the respective
view's Draw() returned? That would also explain #5469, I guess.
CU, Ingo
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