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mark03 · 06-17-2011, 02:11 PM

Diffing Amazon's directfb-1.2.0 against the version from directfb.org is quite interesting. Probably more instructive for someone who's actually used these libraries before

They've added a "SetDirtyRectangle" call to the API. I haven't looked at this long enough to see how it works though.

Their GTK+ had more extensive patches. There's a bunch of stuff in "gdk marshaling" that sailed way over my head, but I wonder if it has to do with batching up things between eink display updates?

For my bicycle-computer app I intend to work at the directfb level and trigger updates manually via the ioctls if I can't figure out the dirty-rectangle stuff.

06-17-2011, 02:11 PM	#8
mark03 Enthusiast Posts: 30 Karma: 10 Join Date: Jun 2011 Device: Kindle 3 wifi	Diffing Amazon's directfb-1.2.0 against the version from directfb.org is quite interesting. Probably more instructive for someone who's actually used these libraries before They've added a "SetDirtyRectangle" call to the API. I haven't looked at this long enough to see how it works though. Their GTK+ had more extensive patches. There's a bunch of stuff in "gdk marshaling" that sailed way over my head, but I wonder if it has to do with batching up things between eink display updates? For my bicycle-computer app I intend to work at the directfb level and trigger updates manually via the ioctls if I can't figure out the dirty-rectangle stuff.