On Mon, Jan 12, 2009 at 03:23:48PM +0100, Stephane Marchesin wrote: > On Mon, Jan 12, 2009 at 14:35, Florian Echtler <[email protected]> wrote: > > But can you explain "shadowfb approach" in more detail? I've seen the > > phrase in the fbdrv manual already; does that mean that the X driver > > maintains a copy of the framebuffer content in memory and only tries to > > transmit changed regions? > > Yes shadowfb does just that. A couple of drivers implement it, look at > nv or radeon for example. On the plus side you get a very small driver > and you just have to implement a copy hook, the regions are determined > by the X server for you.
Or avivo is a much more simple example. Cheers, Daniel
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