Quoting Denis Oliver Kropp ([EMAIL PROTECTED]): > Quoting Ville Syrj?l? ([EMAIL PROTECTED]): > > On Wed, Feb 12, 2003 at 11:39:53AM -0500, >[EMAIL PROTECTED] wrote: > > > As one can start multiple XFree86 instances on a single machine, each > > > using a separate VT (switching between them with ALT-CTRL-Fn), I am > > > wondering if the same can be done with XDirectFB. > > > > >From the TODO: > > Rework VT handling. Readd VT switching and Suspend/Resume. > > > > So it's not possible currently. Apparently it was working at some point in > > the past. > > It did work for single app long time ago. > > Readding it even for multi app isn't impossible. > > There are these steps to be taken by the master to switch away: > - Call CloseDevice() on all input devices. > - Lock all layers switching to exclusive coop. level (dfb_layer_purchase()). > - Kick out all auto video buffers (possibly updating the sysmem instance). > - Safe contents of all video only buffers. > - Reject locks on video memory instances and redirect locks on video only > buffers to their system memory backup.
The final step I forgot: - Lock the accelerator (dfb_gfxcard_lock()). I forgot to elaborate the counter part, too: - Unlock the accelerator invalidating it's state (dfb_gfxcard_unlock()). - Restore video only buffers. - Unlock all layers switching to shared coop. level (dfb_layer_cede()). - Call OpenDevice() on all input devices. Also it's unclear which layers have to be made invisible (e.g. BES). -- Best regards, Denis Oliver Kropp .------------------------------------------. | DirectFB - Hardware accelerated graphics | | http://www.directfb.org/ | "------------------------------------------" Convergence GmbH -- Info: To unsubscribe send a mail to [EMAIL PROTECTED] with "unsubscribe directfb-dev" as subject.
