When the compositor is destroyed we should cleanup the list of window actors we
created and destroy them.
Since all the actors are added to the window_group or top_window_group we can
just destroy these containers (together with the feedback_group), and simply
free the windows list.
This is particularly needed under X11 because before we destroy the display, we
might do some cleanups as detaching the surface pixmaps and freeing the damages
and if this happens at later point (for example when triggered by garbage
collector in gnome-shell), we might crash because the x11 dpy reference is
already gone.
Destroying the window actors instead, ensures we avoid any further call to X11
related functions and that we release the actors XServer resources.
Fixes https://gitlab.gnome.org/GNOME/mutter/issues/576
(cherry picked from commit 7718e67f5c)
When repicking after a surface was destroyed, if the destroyed surface
was the drag focus, we'd try to focus-out from it after it was
destroyed, causing a NULL pointer dereference.
Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/336
(cherry picked from commit 95649fd2bc)
With Wayland, a window is not showing until it's shown. Until this
patch, the initial state of MetaWindow, on the other hand, was that a
window is initialized as showing. This means that for a window to
actually be classified as shown (MetaWindow::hidden set to FALSE),
something would first have to hide it.
Normally, this wasn't an issue, as normally we'd first create a window,
determine it shouldn't be visible (due to missing buffer), hide it
before the next paint, then eventually show it. This doesn't work if
mutter isn't drawing any frames at the moment (e.g. the user switched
VT), as we'd miss the hiding before showing as e result of a buffer
being attached. The most visible side effect is that a window can't be
moved as the window actor remains frozen.
This commit fixes this issue by correctly classifying a newly created
Wayland window as "hidden".
Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/331
(cherry picked from commit 49780245f4)
The WM_NAME property is of type TEXT_PROPERTY, which is supposed to be
returned as UTF-8. Commit 840378ae68 broke that assumption, resulting
in crashes with non-UTF8 locales; however the "fix" of converting from
LATIN1 to UTF8 is wrong as well, as the conversion will spit out garbage
when the input encoding isn't actually LATIN1.
Now that the original issue in text_property_to_utf8() has been fixed,
we can simply revert the relevant bits of commit d62491f46e.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/227
(cherry picked from commit 62775d1913)
Commit 840378ae68 changed the code to use XmbTextPropertyToTextList()
instead of gdk_text_property_to_utf8_list_for_display(), but didn't
take into account that the replacement returns text in the current
locale's encoding, while any callers (rightfully) expect UTF8.
Fix this by converting the text if necessary.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/227
(cherry picked from commit 76abe87090)
Commit 8d3e05305 ("window: Force update monitor on hot plugs") added the
flag `META_WINDOW_UPDATE_MONITOR_FLAGS_FORCE` passed to
`update_monitor()` from `update_for_monitors_changed()`.
However, `update_for_monitors_changed()` may choose to call another code
path to `move_between_rects()` and `meta_window_move_resize_internal()`
eventually.
As `meta_window_move_resize_internal()` does not use the "force" flag,
we may still end up in case where the window->monitor is left unchanged.
To avoid that problem, add a new `MetaMoveResizeFlags` that
`update_for_monitors_changed()` can use to force the monitor update from
`meta_window_move_resize_internal()`.
Fixes: 8d3e05305 ("window: Force update monitor on hot plugs")
Closes: https://gitlab.gnome.org/GNOME/mutter/issues/189
(cherry picked from commit fa495286a1)
(cherry picked from commit 8eabfaaa8b)
When using the EGLStream backend, the MetaRendererNative passed a
GClosure to KMS when using EGLStreams, but KMS flip callback event
handler in meta-gpu-kms.c expected a closure wrapped in a closure
container, meaning it'd instead crash when using EGLStreams. Make the
flip handler get what it expects also when using EGLStreams by wrapping
the flip closure in the container before handing it over to EGL.
https://bugzilla.gnome.org/show_bug.cgi?id=790316
(cherry picked from commit 8ee14a7cb7)
As with xdg-toplevel, a gtk-surface can be unmanaged by the compositor
without the client knowing about it, meaning the client may still send
updates and make requests. Handle this gracefully by ignoring them. The
client needs to reset all the state anyway, if it wants to remap the
same surface.
https://gitlab.gnome.org/GNOME/mutter/issues/240
(cherry picked from commit ca5b27baf5)
As with xdg-toplevel proper, a legacy xdg-toplevel can be unmanaged by
the compositor without the client knowing about it, meaning the client
may still send updates and make requests. Handle this gracefully by
ignoring them. The client needs to reassign the surface the legacy
xdg-toplevel role again, if it wants to remap the same surface, meaning
all state would be reset anyway.
Closes: https://gitlab.gnome.org/GNOME/mutter/issues/240
(cherry picked from commit 64df627688)
A toplevel window can be unmanaged without the client knowing it (e.g. a
modal dialog being unmapped together with its parent. When this has
happened, take frame callbacks queued on a commit and cache them on the
generic surface queue. If the toplevel is to be remapped because the
surface was reassigned the toplevel role, the cached frame callbacks
will be queued on the surface actor and dispatched accordingly.
https://gitlab.gnome.org/GNOME/mutter/issues/240
(cherry picked from commit a740f50cd7)
A window can be unmanaged without asking the client to do it, for
example as a side effect of a parent window being unmanaged, if the
child window was a attached dialog.
This means that the client might still make requests post updates to it
after that it was unmapped. Handle this gracefully by NULL-checking the
surface's MetaWindow pointer. We're not loosing any state due to this,
as if the client wants to map the same surface again, it needs to either
reassign it the toplevel role, or reset the xdg-toplevel, both resulting
in all state being lost anyway.
https://gitlab.gnome.org/GNOME/mutter/issues/240
(cherry picked from commit 5fd0f62a62)
A toplevel window can be unmanaged without the client knowing it (e.g. a
modal dialog being unmapped together with its parent. When this has
happened, take frame callbacks queued on a commit and cache them on the
generic surface queue. If the toplevel is to be remapped, either because
the surface was reassigned the toplevel role, or if it was reset and
remapped, the cached frame callbacks will be queued on the surface actor
and dispatched accordingly.
https://gitlab.gnome.org/GNOME/mutter/issues/240
(cherry picked from commit 80d420ff43)
A popup can be reset, and when that happens, window and actor are
destroyed, and won't be created again unless it is reassigned the
popup role.
If a client queued frame callbacks when resetting a popup, the frame
callbacks would be left in the pending state, as they were not queued on
the actor, meaning we'd hit an assert about the frame callbacks not
being handled. Fix this by caching them on the MetaWaylandSurface, so
that they either are cleaned up on destruction, or queued on the actor
would the surface be re-assigned the popup role.
https://gitlab.gnome.org/GNOME/mutter/issues/240
(cherry picked from commit 407d62943c)
Sometimes it may be useful for roles to put callbacks in the generic
surface frame callback queue. The surface frame callback queue will
either eventually be processed on the next surface role assignment that
places the frame callbacks in a role specific queue, processed at some
other point in time by a role, or cleaned up on surface destruction.
https://gitlab.gnome.org/GNOME/mutter/issues/240
(cherry picked from commit 0ace58d05f)
When a xdg-toplevel is reset, the window and actor are recreated, and
all state is cleared. When this happened, we earlied out from the
xdg-toplevel commit handler, which would mean that if the client had
queued frame callbacks when resetting, they'd be left in the pending
commit state, later hitting an assert as they were not handled.
Fix this by queuing the frame callbacks no the new actor, so that they
are emitted whenever the actor is eventually painted.
https://gitlab.gnome.org/GNOME/mutter/issues/240
(cherry picked from commit d791710197)
When we update the main monitor, there is a rule that makes it so that
popup windows use the same main monitor as their parent. In the commit
f4d07caa38 the call that updates and
fetches the main monitor of the toplevel accidentally changed to update
from itself, causing a indefinite recursion eventually resulting in a
crash.
Closes: https://gitlab.gnome.org/GNOME/mutter/issues/279
(cherry picked from commit e191c21e04)
To avoid a known race condition in the wl_output protocol documented in
https://phabricator.freedesktop.org/T7722, mutter delays the `wl_output`
destruction but nullify the `logical_monitor` associated with the
`wl_output` and the binding routine `bind_output()` makes sure not to
send wl_output events if the `logical_monitor` is `NULL` (see commit
1923db97).
The binding routine for `xdg_output` however does not check for such a
condition, hence if the output configuration changes while a client is
binding to xdg-output (typically Xwayland at startup), mutter would
crash while trying to access the `logical_monitor` which was nullified
by the change in configuration.
Just like `bind_output()` does for wl_output, do not send xdg-output
events if there is no `logical_monitor` yet.
Closes: https://gitlab.gnome.org/GNOME/mutter/issues/194
(cherry picked from commit 68ec9ac017)
Changes in window decoration result in the window being reparented
in and out its frame. This in turn causes unmap/map events, and
XI_FocusOut if the window happened to be focused.
In order to preserve the focused window across the decoration change,
add a flag so that the focus may be restored on MapNotify.
Closes: #273
(cherry picked from commit 8dcac664fa)
The compositor will automatically unredirect the top most window which
is fully visible on screen. When unredirecting windows, it also shapes
the compositor overlay window (COW) so that other redirected windows
still shows correctly.
The function `get_top_visible_window_actor()` however will simply walks
down the window list, so if a window is placed on a layer above and
unredirected, then iconified by the client, it will still be picked up
by `get_top_visible_window_actor()` and he compositor will reckon it's
still unredirected while not in a visible state anymore, thus leaving a
black area on screen.
Make sure we skip the windows not known to the compositor while picking
the top visible window actor to avoid this issue.
Closes: https://gitlab.gnome.org/GNOME/mutter/issues/306
(cherry picked from commit 2fb3db7659)
On Wayland, xdg-foreign would leave a modal dialog managed even after
the imported surface is destroyed.
This is sub-optimal and this breaks the atomic relationship one would
expect between the parent and its modal dialog.
Make sure we unmanage the dialog if transient_for is unset even for
Wayland native windows.
Related: https://gitlab.gnome.org/GNOME/mutter/issues/174
Related: https://gitlab.gnome.org/GNOME/mutter/issues/221
(cherry picked from commit b443bd42ac)
This avoids overwhelming the GPU with trying to update mipmaps at a high
rate. Because doing so could easily cause a reduction in the compositor
frame rate and thus actually reduce visual quality.
In the case of a window that is constantly animating in the overview,
this reduces mutter's render time by around 20%-30%.
(cherry picked from commit c9c3283540)
This optimization was presumably added before Clutter was able to
invalidate selected regions of an actor. Paint volumes are supposed
to be invariable as long as the actor conditions don't change.
Stacking of other actors shouldn't affect the paint volume, so it's
actually wrong to optimize those areas away here.
(cherry picked from commit ec8138773a)
The MetaCloseDialog implementation object may stay artifically alive
for a longer period. This was usually fine till gnome-shell commit
b03bcc85aad, as the check_alive() timeout will keep running even
though the window went unmanaged/destroyed, leading to crashes.
In order to fix this, forcibly hide the dialog if it is visible and
the window is being unmanaged, so the timeout is stopped in time.
(cherry picked from commit 6abe4703c7)
Clients using EGLStream-backed buffers will expect the stream to be
functional after wl_surface::attach(). That means the compositor-side
stream must be created and a consumer attached to it.
To resolve the above, this change realizes buffers even when the attach
operation is deferred (e.g. synchronized subsurfaces).
https://bugzilla.gnome.org/show_bug.cgi?id=782575
(cherry picked from commit 22723ca371)
When dealing with synchronized subsurfaces, we defer buffer attachments
until the parent surface state is applied.
That causes interaction issues with EGLStream backed buffers, as the
client expects the compositor-side stream to be functional after it
requests a wl_surface::attach.
By allowing the compositor to realize buffers without attaching them, we
could resolve the issue above if we define a realized EGLStream buffer
as a functional EGLStream (EGLStream + attached consumer).
This change moves the texture consumer creation part from the attach
function to the realize one.
https://bugzilla.gnome.org/show_bug.cgi?id=782575
(cherry picked from commit edd3634bb5)
Commit 712ec30cd9 added the logic to only
choose EGL configs that match the GBM_FORMAT_XRGB8888 pixel format.
However, there won't be any EGL config satisfying such criteria for
non-GBM backends, such as EGLDevice.
This change will let us choose the first EGL config for the EGLDevice
backend, while still forcing GBM_FORMAT_XRGB8888 configs for the GBM
one.
Related to: https://gitlab.gnome.org/GNOME/mutter/issues/2
(cherry picked from commit 1bf2eb95b5)
Commit 22723ca37 moved buffer realization to
meta_wayland_surface_commit() so that it wouldn't be part of
meta_wayland_buffer_attach().
However, creation of dmabuf buffers would call into
meta_wayland_buffer_attach() directly without realizing the buffer
first. attach() would then fail and mutter would effectively shut down
any clients using the zwp_linux_dmabuf protocol (note that if such
client was Xwayland, mutter itself would shut down as well).
Add the missing bit in order to make zwp_linux_dmabuf protocol work
again.
(cherry picked from commit 54709c16b5)
The special ::pick implementation there makes clutter fall into paths
that do require a get_paint_volume() implementation, or an infinite
area will be used.
Providing a paint volume here is easier on the invalidation mechanism.
(cherry picked from commit 94f4009882)
Restarting UPower will make every property of UpClient emit a "notify"
signal (as a GDBusProxy would). Avoid mutter reconfiguring the displays
when upower restarts by caching the last known value of "lid-is-closed"
and only reconfiguring the displays if it actually changed.
This fixes a black out of the screen when UPower restarts.
(cherry picked from commit 49b23c7490)
Don't try to connect to a UpClient signal if creating the client failed,
because UPower isn't running for example.
(cherry picked from commit 644a618fb1)
If a client asks for xdg-output before we have set the output's logical
monitor, we would end up crashing with a NULL pointer dereference.
Make sure we clear the resource's user data when marking an output as
inert on monitor change so that we don't end up with a Wayland output
without a logical monitor.
Closes: https://gitlab.gnome.org/GNOME/mutter/issues/194
(cherry picked from commit 48eaa36d41)
XcursorLibraryLoadCursor can return 'None' if the current cursor theme
is missing the requested icon. If XFreeCursor is then called on this
cursor, it generates a BadCursor error causing gnome-shell to crash.
Fixes https://gitlab.gnome.org/GNOME/mutter/issues/254
(cherry picked from commit 1bfa20929b)
Commit a3da4b8d5b changed updating of
window monitors to always use take affect when it was done from a
non-user operation. This could cause feed back loops when a non-user
driven operation would trigger the changing of a monitor, which itself
would trigger changing of the monitor again due to a window scale
change.
The reason for the change, was that when the window monitor changed due
to a hot plug, if it didn't actually change, eventually the window
monitor pointer would be pointing to freed memory.
Instead of force updating the monitor on all non-user operations, just
do it on hot plugs. This allows for the feedback loop preventing logic
to still do what its supposed to do, without risking dangling pointers
on hot plugs.
Related: https://gitlab.gnome.org/GNOME/mutter/issues/189
Closes: https://gitlab.gnome.org/GNOME/mutter/issues/192
(cherry picked from commit 8d3e053059)
The bool determines whether the call was directly from a user operation
or not. To add more state into the call without having to add more
boolenas, change the boolean to a flag (so far with 'none' and 'user-op'
as possible values). No functional changes were made.
https://gitlab.gnome.org/GNOME/mutter/issues/192
(cherry picked from commit f4d07caa38)
We need a way for mutter to exit if no available GPUs are going to work.
For example if gdm starts gnome-shell and we're using a DRM driver that
doesn't work with KMS then we should exit so that GDM can try with Xorg,
rather than operating in headless mode.
Related: https://gitlab.gnome.org/GNOME/mutter/issues/223
(cherry picked from commit deb541ef5a)
The "backends: Move MetaOutput::crtc field into private struct"
accidentally changed the view transform calculation code to assume that
"MetaCrtc::transform" corresponds to the transform of the CRTC; so is
not the case yet; one must calculate the transform from the logical
monitor, and check whether it is supported by the CRTC using
meta_monitor_manager_is_transform_handled(). This commit restores the
old behaviour that doesn't use MetaCrtc::transform when calculating the
view transform.
Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/216
By using the shm file when sending the keymap to all clients, we
effectively allows any client to change the keymap, as any client has
the ability to change the content of the file. Sending a read-only file
descriptor, or making the file itself read-only before unlinking, can
be worked around by the client by using chmod(2) and open(2) on
/proc/<pid>/<fd>.
Using memfd could potentially solve this issue, but as the usage of
mmap with MAP_SHARED is wide spread among clients, such a change can
not be introduced without causing wide spread compatibility issues.
So, to avoid allowing clients to interfere with each other, create a
separate shm file for each wl_keyboard resource when sending the
keymap. We could eventually do this per client, but in most cases,
there will only be one wl_keyboard resource per client anyway.
https://bugzilla.gnome.org/show_bug.cgi?id=784206
meta_backend_x11_grab_device is performing X server clock comparison
using the MAX macro, which comes down to a simple greater-than.
Use XSERVER_TIME_IS_BEFORE, which is a better macro for X server
clock comparisons, as it accounts for 32-bit wrap-around.
https://gitlab.gnome.org/GNOME/mutter/merge_requests/174
(cherry picked from commit 1bfa20929b)
Commit c0d9b08ef9 replaced the old GBM API calls
with the multi-plane GBM API. However, the call to gbm_bo_get_handle_for_plane
fails for some DRI drivers (in particular i915). Due to missing error checks,
the subsequent call to drmModeAddFB[2] fails and the screen output locks up.
This commit adds the missing error checks and falls back to the old GBM API
(non-planar) if necessary.
v5: test success of gbm_bo_get_handle_for_plane instead of errno
This commit adopts solution proposed by Daniel van Vugt to check the return
value of gbm_bo_get_handle_for_plane on plane 0 and fall back to old
non-planar method if the call fails. This removes the errno check (for
ENOSYS) that could abort if mesa ever sets a different value.
Related to: https://gitlab.gnome.org/GNOME/mutter/issues/127
(cherry picked from commit f7af32a3ea)
If the surface is gone before `meta_xwayland_keyboard_grab_end()` is
called, we would bail out early leaving an empty grab, which will cause
a segfault as soon as a key is pressed later on.
Make sure we clean up the keyboard grab even if the surface is gone.
Closes: https://gitlab.gnome.org/GNOME/mutter/issues/255
(cherry picked from commit 252dd52439)
For historical reasons meta_monitor_is_active() checked whether it is
active by checking whether the main output have a CRTC assigned and
whether that CRTC has a current mode. At a later point, the MetaMonitor
got its own mode abstraction (MetaMonitorMode), but
meta_monitor_is_active() was never updated to use this.
An issue with checking the main output's CRTC state is that, if there is
some CRTC mode combination that for some reason isn't properly detected
by the MetaMonitorMode abstraction (e.g. some tiling configuration not
yet handled), meta_monitor_is_active() would return TRUE, even though no
(abstracted) mode was set. This would cause confusion here and there,
leading to NULL pointer dereferences due to the assumption that if a
monitor is active, it has an active mode.
Instead, change meta_monitor_is_active() to directly check the current
monitor mode, and log a warning if the main output still happen to have
a CRTC with a mode assigned to it. This way, when an not undrestood CRTC
mode combination is encountered, instead of dereferencing NULL pointers,
simply assume the monitor is not active, which means that it will not be
managed or rendered by mutter at all.
https://gitlab.gnome.org/GNOME/mutter/issues/130
(cherry picked from commit 4d465eac08)
When a transient window is destroyed, the expected behavior is that
focus is passed to the ancestor if possible. This was broken for
quite a while until the previous commit, so add a test case to make
sure it doesn't happen again.
https://gitlab.gnome.org/GNOME/mutter/issues/15
(cherry-picked from commit 137f22236c)
Since commit b3b9d9e16 we no longer have to pass the unmanaging window
to make sure we don't try to focus it again, however the parameter also
influences the focus policy by giving ancestors preference over the normal
stack order.
https://gitlab.gnome.org/GNOME/mutter/issues/15
(cherry picked from commit d99442d6e6)
