Re: Vertical retrace interrupts?

["Michel Dänzer" <michel@daenzer.net>]

On Fre, 2003-01-31 at 00:22, Antonino Daplas wrote:
> On Thu, 2003-01-30 at 19:45, Michel Dänzer wrote:
> > 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.
> 
> Yes, I've seen the dri list archives, and adding support for this in
> fbdev will result in code dupliation :-(.
> 
> However, at least 3 people have mailed me that they are using their
> somewhat old pc as a set top box with mplayer, DirectFB and i810fb. No
> X.

You don't need X to use the DRM, just some privileged client to
initialize it.


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



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