Re: [Linux-fbdev-devel] Vertical retrace interrupts?

[Michel <mi...@da...>]

On Don, 2003-01-30 at 03:34, Antonino Daplas wrote:
> On Wed, 2003-01-29 at 03:21, James Simmons wrote:
> > 
> > > Are there any plans on merging DirectFB features? Stuff like vertical
> > > retrace interrupts etc.?
> 
> I wholeheartedly agree with this.  There are a lot of applications out
> there (especially video players) where vtrace signal delivery is
> critical for optimum operation.  Polling for VGA registers is not
> totally correct for newer cards and is too inefficient, so this has to
> be done at a per driver level.

Let me point out that the DRM in XFree86 4.3.0 and 2.5 kernels has a
generic ioctl which can block or send a signal on vertical blank
interrupts.


-- 
Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer
XFree86 and DRI project member   /  CS student, Free Software enthusiast