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LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
PostgreSQL 9.3 beta: Federated databases and more
LWN.net Weekly Edition for May 9, 2013
(Nearly) full tickless operation in 3.10
Wayland the "successor" LCA: The X-men speak
Posted Feb 13, 2013 0:06 UTC (Wed) by daglwn (subscriber, #65432)
Posted Feb 14, 2013 8:30 UTC (Thu) by Serge (guest, #84957)
You can see it for yourself. There're wayland livecds. Download http://sourceforge.net/projects/rebeccablackos/ burn it to DVD or manually unpack to a bootable USB stick and try it.
Posted Feb 14, 2013 6:21 UTC (Thu) by Serge (guest, #84957)
DirectFB people never attempted taking the place of X.Org. They could, just never tried.
Posted Feb 14, 2013 13:56 UTC (Thu) by Cyberax (✭ supporter ✭, #52523)
Posted Feb 14, 2013 19:15 UTC (Thu) by Serge (guest, #84957)
Maybe. :) But it's not that obvious.
> DirectFB is a very lightweight X-server look-alike moved into the kernel.
It does not require kernel patches. It only builds a fusion kernel module for fast IPC. And it's much farther from X-server than Wayland.
> It has no real support for running OpenGL applications
DirectFBGL? You can see some 3D-looking samples in http://ilixi.org/ video.
> and can only do simple compositions.
Weston can also do simple compositions. It's up to the compositor, I guess.
Posted Feb 14, 2013 19:25 UTC (Thu) by Cyberax (✭ supporter ✭, #52523)
I don't remember it ever trying to support OpenGL, but I guess that blitting from a texture to framebuffer is not that complex to add if you have a working EGL.
In short, DirectFB is more like a classic framebuffer with several hardware accelerated operations. It's not nearly enough for modern graphics.
Posted Feb 14, 2013 15:14 UTC (Thu) by renox (subscriber, #23785)
Probably because DirectFB's documentations and introductory materials suck so much that I've never been able to understand how it works (I'm probably not the only one considering that all the discussions about DirectFB I've seen are "it works like this, no it works like that, no, etc").
> DirectFB people never attempted taking the place of X.Org. They could, just never tried.
You don't get to be successful by not trying.
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