XPending() reports if there are any events pending and does not perform
any dequeuing itself - ergo for a remote display while (XPending()) ;
becomes an infinite loop should there be an event pending.
References: https://bugs.freedesktop.org/show_bug.cgi?id=71345
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Whilst we want to take over and hide the cursor on the remote displays,
on the source we need to not interfere with the host.
Reported-by: Jethro Beekman <freedesktop-bugs@jbeekman.nl>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71439
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
If we fail to track rendering using ShmCompletionEvents and begin to
drop frames, insert an explicit XSync.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
As we ourselves only track the BBox of damage on the virtual outputs, we
can ask X to amalgamate the damage events as well.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Some versions of the Xserver lose Damage tracking across the modeset,
causing a loss of damage notifications and repainting to cease on the
virtual outputs. We can workaround this by reattaching the damage every
time we receive notification that the local Screen configuration
changes.
Reported-and-tested-by: Severin Strobl <fd@severin-strobl.de>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68987
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
The timer will be enabled if a reconfiguration actually takes place and
we mark the damaged region to be redrawn.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
After processing the Damage notification, we need to send a message back
to the Xserver to clear the pending damage before we will be sent more
events. To make sure that message is sent we need to flush the output,
as we may never flush the output queue otherwise.
Reported-by: Severin Strobl <fd@severin-strobl.de>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68987
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
For the frequent operations, such as moving the cursor or updating
damage, it is more efficient to walk the list of active outputs (as the
discrete GPUs support lots of outputs!)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Even though we don't use the trailing NUL byte for our comparisons,
sprintf will write it, so we need make space for it.
Reported-by: Severin Strobl <fd@severin-strobl.de>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68987
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
When falling back to using XSync rather than XSendEvent it is imperative
that we remember to clear the flag so that we don't keep on performing
the synchronous RTT every time.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
As there is an XID inside the ShmSegmentInfo we cannot share one between
both endpoints, or else it gets clobbered and rendering is lost (unless
by happy coincidence the last XID is available in both Xservers).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
The 'output-is-changed' flags was accidentally initialised to 01 rather
than 0, causing all attached outputs to be considered to have changed
everytime.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
If the Display doesn't support the more recent non-forced-detection
GetScreenResources, use the older version instead.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
bumbledeed will shutdown its Xserver when the last connection to it
closes. For the moment, leak the control socket so that the display
stays alive. However, we will want to attach to any Xservers created by
bumblebee as opposed to creating them.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
As the flush may queue work that causes the timer to be reactivated
prior to draining the queue, we need to flush first then turn off the
timer if idle.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
For whatever reason, Xfixes uses "unsigned long" in its protocol
definition for the cursor pixels.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Make sure we are not responding to cursor motion on other screens, by
checking for our root window.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
We can't place the record fd at after the displays as we may wish to
clone more displays later and use the simplification that they are in a
linear, contiguous block at the end of the fd array.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
With Xinerama, we do not support reconfiguration of the target's CRTCs
but we can still paint!
This will require some more work to try and minimise the incompatibility
between configuring Randr displays locally and the static arrangement
remotely. But you can paint!
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
When calling XNextEvent() you must provide it with space for any event,
i.e. XEvent, and not be tempted to pass in the specific type you are
waiting for!
Reported-by: Philipp Adolf
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
When we install a fake mode on the output, we have to perform a
round-trip for a reprobe. During that time, some other client (such as
gnome-shell) will be notify of the change in output status and may
attempt to configure it. This leaves us unable to delete the mode as it
is currently active - so first disable the new head and then delete the
mode.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Chris Wilson