Hi Lionel,
you can synchronise them by using IDirectFBWindow::BeginUpdates() and
flip with the DSFLIP_ONCE flag. all "BeginUpdate" windows will only
update once all have done the flip with the ONCE flag too. This involves
"waiting" the tasks for the last, though.
Greets
Niels
Lionel Landwerlin wrote:
Hi all,
I'm wondering if there is something similar in DirectFB to a window
compositor in X11.
My point is that I have several windows, with each window having its
own framerate update,
and I want to synchronize all theirs updates in one framerate, so I
can display smooth animation
in several windows.
For example, I have 2 windows each running a webkit view, with each
webkit view displaying
smooth animations. Both windows might want to flip at 30fps for
example, but my hardware
has only 40fps capabilites. With both windows flipping asynchronously
in worst case, I can
acquive a 60fps refresh rate which slows down the animations and
overloads the hardware.
I gave a look at SaWMan to see if there is something that might help
me in acquiving that task,
but I didn't find anything interesting.
Any idea ?
--
Lionel Landwerlin
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