Currently it is not possible to change the number of buffers associated
to a surface.
This also holds for surfaces attached to windows, so to answer your
question, it's not possible.
Lionel Landwerlin wrote:
Niels,
Well, I should probably talk about surfaces so.
Is it possible to change the window's surface from double buffered to
single buffered, without destroying the window ?
--
Lionel
On Thu, Feb 25, 2010 at 12:41 PM, Niels Roest <ni...@directfb.org
<mailto:ni...@directfb.org>> wrote:
Hi Lionel,
not quite sure I understand.
Windows (IDirectFBWindow) are, afaik, always "single" buffered, or
rather simply "buffered" (as opposed to what I believe X does,
which simply issues redraw requests). A window update is then
nothing more than a sequence of bitblt operations.
If you want to get rid of the bufferedness you have to access the
layer yourself, since DirectFB has currently no mechanism for redraws.
Greets
Niels
Lionel Landwerlin wrote:
Hi all
I'm wondering whether it's possible to change a double
buffered window to a single buffered one
and vice and versa.
My idea is to display several applications, each one having
its own window, and I only want one
of them to have focus and be able to update its content.
Therefor the others windows are kind "frozen"
and won't update their backbuffered content. So I could save
some memory by changing them from
double buffered to single buffered.
Is it something possible with the current directfb version ?
Regards,
--
Lionel Landwerlin
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