Commit Graph

2042 Commits

Author SHA1 Message Date
Jonas Ådahl
ff56305e6f wayland/client: Keep track of wl_client aliveness
Clear the wl_client pointer if the client is destroyed, and emit new
signal if it happened.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2810>
2023-02-13 15:34:24 +00:00
Carlos Garnacho
014cde6461 wayland: Do not use GDK functions on XDnD implementation
We used it to retrieve a Display, and convert between Atoms and
strings. We can just use the MetaX11Display's Display (It's the
same than GDK's anyways) and use XInternAtom/XGetAtomName for
these conversions.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2836>
2023-02-10 20:43:11 +00:00
Jonas Ådahl
84b6913f8a wayland/xdg-foreign: Fix race condition crash
We didn't always set an implementation, when the foreign toplevel wasn't
found, and when the importer tried to set the parent-child relationship,
the implementation was missing and we'd crash in wl_closure_invoke() in
libwayland-server.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2834>
2023-02-10 18:38:39 +00:00
Carlos Garnacho
228d681be8 wayland: Trigger full focus sync after keyboard focus surface is destroyed
This used to be implicitly done by popups using a META_GRAB_OP_WAYLAND_POPUP
MetaDisplay grab. Since commit a8cd488c6f Wayland popups no longer do that,
so the keyboard focus was simply unset if a popup was destroyed while having
the keyboard focus.

Trigger a full input focus sync, so the correct MetaWaylandKeyboard focus
surface is looked up from the focused MetaWindow.

Fixes: a8cd488c6f - wayland: Drop redundant MetaDisplay grab op
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2833>
2023-02-09 16:23:36 +01:00
Carlos Garnacho
c4d8ba0f72 wayland: Avoid entering MetaWindow on other than user pointer motions
On one hand, this used to be handled generically in all the paths that
changed the MetaWaylandPointer focus surface, induced by user interaction
or not.

On the other hand, just listening for crossing events is not sufficient
since those also do happen programmatically. We must only listen to
crossing events that have a physical source device, meaning this was
created through user interaction.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/888
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2828>
2023-02-09 14:41:04 +01:00
Keyu Tao
c1ab3f39d7 wayland/outputs: Fix potential crash when output has no monitor
bind_output() creates output interface resource, but does not
set implementation for it when wayland_output->monitor is NULL.
However, when the wayland library is running wl_closure_invoke(),
it expects the implementation to be non-NULL, and if not, it just
segfaults mutter by NULL pointer dereference.

This commit tries to address this issue by setting an implementation
when wayland_output->monitor is NULL. This could help prevent crash
when resuming from suspend or hotplugging displays.

Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2570
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2827>
2023-02-06 21:37:04 +08:00
Robert Mader
120e21db7c wayland/surface: Reenable WL_SURFACE_ERROR_INVALID_SIZE check
This partly reverts f9857cb8 but leaves an exception for cursor
surfaces in place, as some apps/toolkits will likely not get updated
anytime soon to ensure cursor themes comply with the Wayland spec.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2815>
2023-02-01 17:42:04 +00:00
Carlos Garnacho
35e7feac8c wayland: Check that the current backend is native before using DMA-BUF FDs
We may fall through these paths on --nested too, resulting in us poking the
wrong internals from the wrong MetaRenderer subclass. Fixes launching of
clients using wl_drm in --nested.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2818>
2023-01-31 11:08:26 +00:00
Jonas Ådahl
49b0a8921c Use g_clear_fd() instead of open coding the same behavior
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2806>
2023-01-30 15:11:26 +00:00
Carlos Garnacho
d687e5634d core: Pass device/sequence on meta_window_begin_grab_op()
This is a public API change. Add device/sequence parameters to this
operation, so that window dragging and resizing can stick to one
set of pointing events of them all.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
2023-01-30 10:56:29 +00:00
Carlos Garnacho
18535928e7 wayland: Add device/sequence out parameters getting wayland grab info
This information will become necessary for window move/resize ops.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
2023-01-30 10:56:29 +00:00
Carlos Garnacho
bec8a5860a core,wayland,compositor,x11: Migrate to MetaWindowDrag
Flip the switch in using MetaWindowDrag, leaving display grab
ops and a bunch other code unused. Some places checked the grab op
and/or window in complex ways, others just checked for grab existence
and should now look for clutter ones, and others already were already
doing this in addition.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
2023-01-30 10:56:29 +00:00
Carlos Garnacho
6bd4468b25 wayland: Move away from MetaEventRoute
Use the current grab op for the same effect.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
2023-01-30 10:56:29 +00:00
Carlos Garnacho
12773cf8e2 window: Drop frame_action argument from meta_window_begin_grab_op()
The final effect of this boolean can now be expressed through the
META_GRAB_OP_WINDOW_FLAG_UNCONSTRAINED flag to MetaGrabOp. Use that
in the relevant places, and drop the argument.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
2023-01-30 10:56:29 +00:00
Carlos Garnacho
78a5921066 wayland: Port to meta_window_begin_grab_op()
Move away from meta_display_begin_grab_op(), and start window
grab operations through the MetaWindow API.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
2023-01-30 10:56:29 +00:00
Carlos Garnacho
589ec26b04 core: Drop META_EVENT_ROUTE_WAYLAND_POPUP
This is now unused.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
2023-01-30 10:56:29 +00:00
Carlos Garnacho
a8cd488c6f wayland: Drop redundant MetaDisplay grab op
This is no longer necessary to prevent the bits we wanted to be
prevented by the presence of this grab. We can drop this, and
let it work through the MetaWaylandPointerGrab interface.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
2023-01-30 10:56:29 +00:00
Carlos Garnacho
aed3979064 wayland: Add meta_wayland_compositor_is_grabbed() method
This will return TRUE if there is an existing pointer or keyboard
grab from the wayland compositor.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
2023-01-30 10:56:29 +00:00
Carlos Garnacho
a5bd0c39fe core: Drop META_EVENT_ROUTE_FRAME_BUTTON
With META_GRAB_OP_FRAME_BUTTON gone, this is no longer used. Drop
this event route.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2683>
2023-01-30 10:56:29 +00:00
Jonas Ådahl
8abdbbdf24 wayland/transaction: Don't free queue node on tear down
The GQueue node for transactions are inlined in the transaction struct,
meaning we should never let the GQueue API free the node itself, as that
actuall frees the transaction itself.

We did this during tear down if there were left-over transactions,
meaning we ended up with use-after-free issues after having popped
transactions from the queue.

Fix this by just popping the link itself, which won't attempt to free
it. It is effectively freed when freeing the transaction itself so we
won't leak any memory.

Fixes: 56260e3e07
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2805>
2023-01-25 13:53:11 +00:00
Jonas Ådahl
08b0e563d4 clutter: Pass 'ClutterFrame' in all stage update signals
That means before-update, prepare-paint, before-paint, paint-view, after-paint,
after-update. While yet to be used, it will be used as a transient frame
book keeping object, to maintain object and state that is only valid
during a frame dispatch.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2795>
2023-01-23 15:57:50 +01:00
Olivier Fourdan
8ee85cb228 xwayland: Add support for byte-swapped clients
Instructs Xwayland to allow/disallow connections from X11 clients with a
different endianess based on the "xwayland-allow-byte-swapped-clients"
setting.

This option has no effect if Xwayland does not support the command
option +byteswappedclients/-byteswappedclients.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2576
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2785>
2023-01-17 11:14:19 +01:00
Carlos Garnacho
95c2154039 wayland: Drop HAVE_XSETIOERROREXITHANDLER checks
This define was dropped by commit 0e8aaebc00 (xwayland: Make
XSetIOErrorExitHandler() mandatory), but some #ifdef checks were
brought back by commit 36f30341ac (wayland: Add a prepare-shutdown
signal).

Since there's no define anymore in config.h, these pieces of code
were unintentionally disabled, and a meta_get_display() call be
also left over. Remove the ifdefs and update the code to build
again.

Fixes: 36f30341ac - wayland: Add a prepare-shutdown signal
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2786>
2023-01-12 14:54:31 +00:00
Carlos Garnacho
1cee0579fa wayland: Push an error trap while querying XDND mimetype list
It is a possibility that this request results in an error, so handle the
possible fallout.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2745>
2023-01-12 14:00:52 +01:00
Bilal Elmoussaoui
4bbad6063a wayland: Move Xwayland specific call to xwayland
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2399>
2023-01-03 20:45:04 +00:00
Bilal Elmoussaoui
36f30341ac wayland: Add a prepare-shutdown signal
This allows moving the xwayland shutdown logic to the xwayland
implementation

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2399>
2023-01-03 20:45:04 +00:00
Bilal Elmoussaoui
6e818c8c38 build: Allow disabling xwayland
Mostly moving things around to allow a build without xwayland.
Note that more work might still be needed once the x11 build option
lands as that would allow us to have a proper xwayland only build
without the x server part.

Related: https://gitlab.gnome.org/GNOME/mutter/-/issues/2272
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2399>
2023-01-03 20:45:04 +00:00
Bilal Elmoussaoui
abef37f5ee core: Add a copy of GDK_PRIORITY_EVENTS
Quoting Carlos:
The META_PRIORITY_EVENTS ± 1 happening below are in order to set these idles
and timeouts in a priority that is relative to the literal GDK event priority,
making those diverge is a likely way to sneakily break things.
But that's unlikely to happen, and decoupling mutter from GTK further
should make it moot, so perhaps it's alright after all.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2407>
2022-12-22 15:13:54 +01:00
Bilal Elmoussaoui
64ee8d02f7 core: Add a in-tree copy of GtkBorder
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2407>
2022-12-22 15:13:54 +01:00
Jonas Ådahl
6adc2e4b59 pointer-lock/wayland: Fix coding style
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2772>
2022-12-18 13:17:49 +01:00
Jonas Ådahl
4edcdd8a7f pointer-lock/wayland: Remove unused instance struct field
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2772>
2022-12-18 10:00:34 +01:00
Jonas Ådahl
2762a67000 pointer-lock/wayland: Get compositor from surface
This avoids trying to get it from an pointer that was never set to
anything.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2558
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2772>
2022-12-18 10:00:14 +01:00
Jonas Ådahl
439856e7aa wayland/gtk-shell: Dereference surface after NULL check
Spotted by coverity.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2772>
2022-12-18 09:47:29 +01:00
Jason Francis
aa0b1fbc88 wayland/xdg-foreign: Add support for xdg-foreign-v2
This replaces the v1 implementation, which is now renamed to
legacy-xdg-foreign. Both implementations use the same data structures
internally, so that protocol version mismatches between
the importer client and exporter client don't fail.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2770>
2022-12-17 20:38:23 +00:00
Jonas Ådahl
4b3cab2cca compositor: Don't make internal API public
Things like meta_compositor_destroy() and meta_compositor_add_window()
isn't intended to be used externally, and if they was, things would
probably fall apart rather quickly.

MetaCompositor also isn't introspected, meaning things that technically
belong to the compositing parts isn't easily available via some object,
but much take detours via other objects like MetaDisplay.

So move the API intended for internal usage to compositor-private.h, and
leave API that is meant to be expose in the public compositor.h.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
2022-12-17 15:13:48 +01:00
Jonas Ådahl
82abee5ad7 wayland: Remove meta_wayland_compositor_get_default()
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
2022-12-17 15:13:48 +01:00
Jonas Ådahl
5e67e35ec5 compositor: Setup and use ownership chains
As with the backend commit, this means all objects can reach the
MetaContext by walking up the chain, thus can e.g. get the backend from
the context, instead of the global singleton.

This also is a squashed commit containing:

compositor: Get backend via the context

The MetaCompositor instance is owned by MetaDisplay, which is owned by
MetaContext. Get the backend via that chain of ownership.

dnd: Don't get backend from singleton

window-actor: Don't get backend from singleton

dnd: Don't get Wayland compositor via singleton

background: Don't get the monitor manager from the singleton

plugins: Don't get backend from singleton

This applies to MetaPlugin, it's manager class, and the default plugin.

feedback-actor: Pass a compositor pointer when constructing

This allows getting to the display.

later: Keep a pointer to the manager object

This allows using the non-singleton API in idle callbacks.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
2022-12-17 15:13:48 +01:00
Jonas Ådahl
2731f0cda4 wayland: Setup and use ownership chains
As elsewhere, make sure objects that need to have a ownership up to the
context, and use this ownership chain to find relevant components, such
as the backend or the Wayland compositor object instance.

wayland/data-device: Hook up data devices to seats

They are tied to a seat - make that connection in struct fields too, so
that related objects can get to the context via it.

wayland: Don't get Wayland compositor via singleton getter

This means via the ownership chain or equivalent.

xwayland: Hook up manager to Wayland compositor

Same applies to the drag-n-drop struct.

xwayland: Make X11 event handling compositor instance aware

This avoids finding it via singletons in the callee.

xwayland: Don't get Wayland compositor from singleton

xwayland: Pass manager when handling dnd event

window/xwayland: Don't get Wayland compositor from singleton

xwayland/grab-keyboard: Don't get backend from singleton

xwayland: Don't get backend from singleton

wayland: Always get the backend from the context

This means traveling up the ownership chain or equivalent when
necessary.

wayland: Hook up data devices, offers and sources to the compositor

This allows tying them to a context without going through any
singletons.

wayland: Don't get display from singleton

xwayland: Don't get display from singleton

tablet: Don't get display from singleton

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
2022-12-17 15:13:48 +01:00
Jonas Ådahl
dd2beae6a8 core: Setup and use ownership chains
As with other parts, make objects have the ability to walk up the
ownership chain to the context, to get things like the Wayland
compositor or backend instances.

Contains these squashed commits:

display: Don't get backend from singleton

window: Don't get backend from singleton

keybindings: Don't get backend from singleton

workspace: Don't get backend from singleton

display: Don't get Wayland compositor from singleton

selection: Add display getter

context/main: Get backend directly from the context

clipboard-manager: Don't get display from singleton

stack-tracker: Don't use singleton MetaLater API

startup-notification: Hook up sequences and activations to display

This allows using context aware API directly.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
2022-12-17 15:13:48 +01:00
Jonas Ådahl
0e8aaebc00 xwayland: Make XSetIOErrorExitHandler() mandatory
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
2022-12-17 13:52:51 +00:00
Jonas Ådahl
7e974ba6cc backend: Get 'is-stage-views-scaled' from backend
It did, but used the old backend singleton.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
2022-12-17 13:52:51 +00:00
Sebastian Wick
a2ed0f97c3 wayland/outputs: Make wl_output mode independent of the orientation
wl_output describes the physical attributes and the mode of an output is
such a physical attribute. Swapping the width and height creates
another, incorrect mode.

Other compositors also report the physical mode and don't try to
transform it based on the orientation of buffers.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2519
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2723>
2022-12-17 10:09:37 +00:00
Robert Mader
35ecaafd6b wayland/actor-surface: Optimize update scheduling
This code path is important for "empty" commits to ensure we schedule
frame callbacks even if previous commits didn't cause stage redraws.
There is, however, no reason to schedule updates on all stage views
instead of only those the actor is on.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2671>
2022-12-16 16:27:33 +00:00
Robert Mader
292a8500ed surface-actor-wayland: Clean up and optimize check for primary view
Avoid some allocations, save some CPU cycles and make the code easier
to read.

Behaviourwise the only expected change is that now, if there are mapped
clones, we unconditionally choose the view with the highest refresh
rate the actor (or one of its clones) is on and don't check the
obscurred region any more.

Thus in some cases a client may receive a higher rate of frame callbacks
when obscured on a faster view while a clone is present on a slower
one. The assumption is that cases like this are relatively rare and
that the reduction of code complexity, the reduction of allocations in
`meta_surface_actor_is_obscured_on_stage_view()` whenever the actor is
not fully obscured and has clones on other views, as well as generally
fewer lookups and less code in most common cases, compensate for that.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2671>
2022-12-16 16:27:33 +00:00
Robert Mader
08a4caff6f wayland/pointer-constraints: Adjustments for subsurface support
After the commit "wayland/subsurface: Implement
meta_wayland_surface_get_window()" subsurfaces are supported. Adjust
some comments and fix a warning that could occur when closing a window.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2717>
2022-12-09 20:48:55 +00:00
Robert Mader
225f7d46a3 wayland/subsurface: Check ancestor instead of toplevel window for actor sync
The intention here was to check if the subsurface belongs to a window.
Thus it didn't behave as expected for subsurfaces belonging to non-toplevel
windows.

After the previous commit we can use `get_window()` to check for what we
actually want here.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2717>
2022-12-09 20:48:55 +00:00
Robert Mader
8af356c2c7 wayland/subsurface: Implement meta_wayland_surface_get_window()
Subsurfaces are special regarding windows as they don't have a window,
but usually have an ancestor which does. All current users of
`get_window()` are either used for known surface roles, such as xdg-*
ones, or, as is the case for pointer constrains, would actually want to
get the ancestors window.

Thus implement `get_window()` to allow pointer constrains to work.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2223
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2717>
2022-12-09 20:48:55 +00:00
Robert Mader
e0b2966dd0 wayland/dma-buf: Add 'render' debug prints
And change existing ones where it makes sense.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2680>
2022-12-09 20:14:26 +00:00
Robert Mader
28a3da8d28 wayland/buffer: Add 'render' debug prints
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2680>
2022-12-09 20:14:26 +00:00
Robert Mader
4a2a467b68 wayland/surface: Add 'render' debug prints
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2680>
2022-12-09 20:14:26 +00:00
Michel Dänzer
05efcb4b21 wayland/surface: Overhaul handling of buffer use count
Move the use count from a separate MetaWaylandBufferRef struct to the
MetaWaylandBuffer class, and remove the former.

The buffer use count is now incremented already in
meta_wayland_surface_commit, since the Wayland protocol defines the
buffer to be in use by the compositor at that point. If the buffer
attachment ends up being dropped again before it is applied to the
surface state (e.g. because another buffer is committed to a
synchronized sub-surface before the parent surface is committed),
the use count is now decremented, and a buffer release event is sent if
the use count drops to 0.

Buffer release events were previously incorrectly not sent under these
circumstances. Test case: Run the weston-subsurfaces demo with the -r1
and/or -t1 command line parameter. Resize the window. Before this
change, weston-subsurfaces would freeze or abort after a few resize
operations, because mutter failed to send release events and the
client ran out of usable buffers.

v2:
* Handle NULL priv->buffer_ref in
  meta_wayland_cursor_surface_apply_state.
v3:
* Remove MetaWaylandBufferRef altogether, move the use count tracking
  to MetaWaylandBuffer itself. Much simpler, and doesn't run into
  lifetime issues when mutter shuts down.
v4:
* Warn if use count isn't 0 in meta_wayland_buffer_finalize.
* Keep pending_buffer_resource_destroyed for attached but not yet
  committed buffers. If the client attaches a buffer and then destroys
  it before commit, we ignore the buffer attachement, same as before
  this MR.
v5:
* Rebase on top of new commit which splits up surface->texture.
* MetaWaylandSurfaceState::buffer can only be non-NULL if
  ::newly_attached is TRUE, simplify accordingly.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 17:23:34 +01:00
Michel Dänzer
6e6a38342e wayland/surface: Defer meta_wayland_transaction_apply for dma-bufs
Until all dma-buf file descriptors for all buffers in the transaction
are readable, which corresponds to when the client drawing to the
buffers has finished.

This fixes https://gitlab.gnome.org/GNOME/mutter/-/issues/1162 if the
GPU & drivers support high priority contexts which can preempt lower
priority contexts.

v2:
* Also remove dma-buf fds from transaction and try applying it from
  pending_buffer_resource_destroyed. Avoids freeze due to leaving a
  GSource based on a closed fd attached if a client destroys a wl_buffer
  which is part of a transaction which was committed but not applied
  yet. (Robert Mader)
* Tweak transaction cleanup logic in wl_surface_destructor.
v3:
* Adapt to meta_wayland_dma_buf_get_source.
v4:
* Adapt to new commits using transactions for (sub-)surface destruction,
  drop code to remove destroyed surfaces from pending transactions.
v5:
* Use g_clear_pointer in meta_wayland_transaction_destroy.
  (Georges Basile Stavracas Neto)
* Add spaces between type casts and values. (Carlos Garnacho)
* Use (gpointer *) instead of (void**). (Carlos Garnacho)
* Use gpointer instead of void * in
  meta_wayland_transaction_dma_buf_dispatch.
v6:
* Use g_hash_table_remove in meta_wayland_transaction_dma_buf_dispatch.
  (Carlos Garnacho)
v7: (Jonas Ådahl)
* Move include of glib-unix.h below that of meta-wayland-transaction.h.
* Split up g_hash_table_iter_next call to multiple lines in
  meta_wayland_transaction_commit.
* Call g_source_destroy as well as g_source_unref when freeing a
  committed but not yet applied transaction (during mutter shutdown).
v8:
* Drop dma_buf_source_destroy, can use g_source_destroy directly.
  (Jonas Ådahl)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 16:35:19 +01:00
Michel Dänzer
b7599fb766 wayland/xdg-shell: Defer meta_wayland_xdg_positioner_to_placement call
From xdg_surface_constructor_get_popup / xdg_popup_reposition (called
during Wayland protocol processing) to finish_popup_setup /
meta_wayland_xdg_popup_apply_state (called when the popup state is
applied).

This makes sure that the parent window frame rectangle is up to date in
meta_wayland_xdg_positioner_to_placement.

v2:
* Use meta_wayland_surface_state_new () in
  meta_wayland_transaction_add_xdg_popup_reposition.
v3:
* Move xdg_popup_repositioned handling to
  meta_wayland_xdg_popup_apply_state.
v4:
* Do not steal pending->xdg_positioner in
  meta_wayland_xdg_popup_apply_state, fixes leaking the corresponding
  memory.
* Drop MetaWaylandSurfaceState::xdg_popup_repositioned, just use
  ::xdg_positioner.
v5:
* Reformat meta_wayland_xdg_positioner_to_placement calls to stay within
  80 columns. (Jonas Ådahl)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
6c3879766d wayland/xdg-shell: Add parent surface entry to popup setup transaction
This makes sure that finish_popup_setup is called after any previous
transactions for the parent surface have been applied, so the parent
window geometry is up to date.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
26346a06ee wayland/surface: Make meta_wayland_transaction_ensure_entry non-static
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
9ed6a3dffb wayland/surface: Add role commit_state callback
Which gets called when pending state is committed for the surface.

This callback may amend the pending transaction or surface state as
needed.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
79dc41499d wayland/surface: Call meta_wayland_buffer_attach from surface commit
Preparation for potentially calling meta_wayland_transaction_apply some
time after surface commit, in which case doing it in the former would be
too late: The client may legally destroy the attached wl_buffer
immediately after commit, in which case meta_wayland_buffer_attach would
spuriously fail and disconnect the client (or possibly even crash mutter
due to NULL error).

Requires splitting up the surface texture between protocol and output
state, and propagating from the former to the latter via
MetaWaylandSurfaceState.

v2: (Jonas Ådahl)
* Move meta_wayland_surface_get_texture call to separate line.
* Use g_autoptr for GError.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
80c6b7d82b wayland/surface: Use transactions for all sub-surface hierarchy changes
And keep track of the hierarchy separately for the Wayland protocol and
for output. Protocol state is updated immediately as protocol requests
are processed, output state only when the corresponding transaction is
applied (which may be deferred until the next commit of the parent
surface).

v2:
* Directly add placement ops to a transaction, instead of going via
  pending_state.
* Use transaction entry for the sub-surface instead of that for its
  parent surface.
v3:
* Use transaction entry for the parent surface again, to ensure proper
  ordering of placement ops, and call
  meta_wayland_surface_notify_subsurface_state_changed only once per
  parent surface.
* Drop all use of wl_resource_add_destroy_listener, transactions are
  keeping surfaces alive as long as needed.
v4:
* Rebase on https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2501
* Drop ClutterActor code from meta_wayland_surface_apply_placement_ops.
  (Robert Mader)
v5:
* Rename MetaWaylandSubSurfaceState to MetaWaylandSurfaceSubState, since
  the next commit adds not sub-surface specific state to it.
v6:
* Move include of meta-wayland-subsurface.h from
  meta-wayland-transaction.c to .h, since the latter references
  MetaWaylandSubsurfacePlacementOp.
v7:
* Drop superfluous !entry check from meta_wayland_transaction_apply.
v8:
* Rename output/protocol fields to output/protocol_state. (Jonas Ådahl)
v9:
* Use meta_wayland_surface_state_new in
  meta_wayland_transaction_add_placement_op.
v10:
* Fix a few style issues per check-style.py.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
4eef08c5c3 wayland/surface: Two phase surface destruction
Destroy Wayland protocol related state immediately when the Wayland
resource is destroyed, but keep the rest alive by any transaction which
references the surface.

This makes it easier and cleaner to deal with a surface getting
destroyed while it's still referenced by transactions.

v2:
* No more need to keep references for surfaces in the entries hash
  table.
v3:
* Do not use surface->sub.transaction in wl_surface_destructor, just
  destroy it.
v4:
* No need for wl_surface_destructor to use its own transaction.
v5:
* Use g_steal_pointer & (more) g_clear_pointer in wl_surface_destructor.
v6:
* Leave SURFACE_DESTROY signal emission in wl_surface_destructor.
v7:
* Use finalize instead of dispose callback.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
ff707a6de6 wayland/surface: Store pointers to next transaction with same surface
This saves traversing all committed transactions to find the next one
which references the same surface.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
e26df6ac14 wayland/surface: Keep transaction entries for all referenced surfaces
This keeps all surfaces referenced by a transaction alive until the
transaction is destroyed, and makes sure transactions are applied in
the same order as they were committed with respect to all surfaces
they reference.

v2:
* Guard against NULL entry in meta_wayland_transaction_apply.
v3:
* Keep single entries hash table.
v4:
* Unref the surface in the meta_wayland_transaction_merge_into while
  loop only if the "to" transaction didn't already have an entry for it,
  to prevent premature finalization of the surface (likely followed by a
  crash).
v5:
* Unref the surface (implicitly via g_hash_table_iter_remove) in the
  meta_wayland_transaction_merge_into while loop even if the "to"
  transaction already had an entry for it, or we leak a reference.
* Use g_clear_object & g_steal_pointer to not leave behind a dangling
  from->state pointer in meta_wayland_transaction_entry_merge_into.
v6:
* Add curly braces around
  meta_wayland_transaction_add_placement_surfaces calls. (Jonas Ådahl)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
5fa4ce6fa8 wayland/surface: Use transactions for synchronized sub-surface state
Instead of cached_state.

surface_commit for a synchronized sub-surface either commits the
transaction or merges it into the parent surface's transaction (if
the parent is a synchronized sub-surface itself).

This should fix or at least improve the behaviour of nested synchronized
sub-surfaces.

Also change wl_subsurface_set_desync:

* Commit sub-surface transactions separately. This may allow some of
  them to be applied earlier in some cases.
* Commit transaction only for descendant sub-surfaces which become
  newly de-synchronized themselves.

v2:
* Drop unused function prototypes
v3:
* Use g_clear_pointer for surface->sub.transaction.
v4:
* Use g_steal_pointer instead of g_clear_pointer. (Sebastian Wick, Jonas
  Ådahl)
v5: (Carlos Garnacho)
* Add spaces between type casts and values.
* Use (gpointer *) instead of (void**).
v6: (Jonas Ådahl)
* Use g_clear_object in meta_wayland_transaction_entry_merge_into.
* Use meta_wayland_transaction_entry_free in
  meta_wayland_transaction_merge_into.
* Fix alignment of meta_wayland_transaction_merge_pending_state
  parameters.
* Remove unused meta_wayland_transaction_add_state declaration.
v7:
* Use meta_wayland_surface_state_new in
  meta_wayland_transaction_merge_pending_state.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
0bae4ece19 wayland/surface: Use transactions for applying committed states
A transaction contains the committed state for a surface, plus any
cached state for synchronized subsurfaces.

v2:
* Handle sub-surface positions separately from surface states.
v3:
* Sync child states only for surfaces with state in the transaction.
v4: (Jonas Ådahl)
* Drop unnecessary g_object_new call from wl_subsurface_set_desync. (me)
* Fix indentation & formatting in meta_wayland_surface_commit.
* Add meta_wayland_surface_state_new helper function.
* Fix alignment of meta_wayland_transaction_apply_subsurface_position
  parameters.
* Add curly braces around meta_wayland_transaction_sync_child_states
  call in meta_wayland_transaction_apply.
v5:
* Make meta_wayland_surface_state_new an inline function.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
56260e3e07 wayland/surface: Make sure transactions are applied in consistent order
If multiple transactions have entries for the same surface, they are
applied in the same order as they were committed. Otherwise, they can
be applied in any order.

This is preparation for following changes, transactions are still
applied as soon as they're committed.

v2:
* Move GQueue for transactions to MetaWaylandCompositor (Jonas Ådahl)
v3
* Say "entry for" instead of "state for", since there can be transaction
  entries with no state (for surfaces which are getting destroyed).
v4:
* Use a hash table to keep track of all candidate transactions which
  might be newly ready to be applied.
* Use clearer function / variable names.
v5:
* Use custom single-linked list instead of hash table for candidate
  transactions, ordered by the transaction commit sequence number, so
  that they're attempted to be applied in the same order as they were
  committed.
* Rename transaction->queue to transaction->committed_queue, and
  simplify its handling.
v6: (Carlos Garnacho)
* Add spaces between type casts and values.
* Use (gpointer *) instead of (void**).
v7: (Jonas Ådahl)
* Use G_MAXSIZE instead of ULONG_MAX.
* Fix indentation of meta_wayland_transaction_apply &
  meta_wayland_transaction_maybe_apply_one parameters.
* Refactor find_next_transaction_for_surface & ensure_next_candidate
  helper functions out of meta_wayland_transaction_apply.
* Refactor has_unapplied_dependencies helper function out of
  meta_wayland_transaction_maybe_apply_one.
* Make while (TRUE) loop in meta_wayland_transaction_maybe_apply
  consistent with general usage.
* Drop unused value local from meta_wayland_transaction_commit.
* Store pointer to compositor object in transactions, instead of
  pointer to the queue of committed transactions.
* Drop tautological g_assert from meta_wayland_transaction_apply. (me)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
207847e8cf wayland: Add transaction skeleton
v2:
* Use single hash table with struct which will contain all kinds of
  state handled by a transaction.
v3:
* Add meta_wayland_transaction_destroy.
v4 (Georges Basile Stavracas Neto)
* Fix struct _MetaWaylandTransaction(Entry) formatting.
* Explicitly test against NULL.
* Use gpointer insteadof void * for
  meta_wayland_transaction_entry_destroy.
v5: (Robert Mader)
* Use for loop in is_ancestor.
* Include meta-wayland-transaction.h first in
  meta-wayland-transaction.c.
v6:
* Use g_autofree & g_clear_object.
v7: (Jonas Ådahl)
* Rename meta_wayland_transaction_entry_destroy to
  meta_wayland_transaction_entry_free.
* Drop g_autofree use from meta_wayland_transaction_entry_free again.
* Make meta_wayland_transaction_entry_free take a
  MetaWaylandTransactionEntry pointer.
* Rename meta_wayland_transaction_destroy to
  meta_wayland_transaction_free.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
6379e54847 wayland/surface: Prepare for decoupled surface & resource lifetimes
Need to deal with surface->resource == NULL and
surface->pending_state == NULL in some places.

v2:
* Avoid expanding conditions to multiple lines.
  (Georges Basile Stavracas Neto)
v3:
* Use a single bailout condition in meta_wayland_client_owns_window as
  well.
v4:
* Remove spare empty line in meta_wayland_surface_apply_state.
  (Robert Mader)
* Add wl_resource_post_error calls in xdg-shell request handlers.
  (Robert Mader)
* Drop checks in functions which can only be called if there's a valid
  resource.
* Drop more checks which are unnecessary due to leaving the
  SURFACE_DESTROY signal emission in wl_surface_destructor later.
v5:
* Move resource = surface->resource assignments to if (!resource) tests.
  (Jonas Ådahl)
v6:
* Fix style issue per check-style.py.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
a99198de83 wayland/surface: Rename "should_cache_state" to "is_synchronized"
Also remove the stale meta_wayland_surface_is_effectively_synchronized
prototype.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
e7d589d45b wayland/surface: Move out meta_wayland_surface_state_reset calls
From meta_wayland_surface_apply_state / _state_merge_into to their
callers.

Preparation for changing behaviour in the callers, no functional
change intended.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
854c02651f wayland/surface: Discard presentation feedback in _state_merge_into
Newly merged state is always from a different surface commit than the
existing state.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 12:41:32 +01:00
Michel Dänzer
d43150573e wayland/dma-buf: Add meta_wayland_dma_buf_create_source
Creates a GSource which will call the specified dispatch callback when
all dma-buf file descriptors for the buffer have become readable.

v2:
* Hold a reference to the buffer in the source, to prevent the buffer
  from getting destroyed before the source.
v3:
* Do not use check callback, handle everything in dispatch callback.
  (Dor Askayo)
v4: (Georges Basile Stavracas Neto)
* Define and use MetaWaylandDmaBufSource & MetaWaylandDmaBufSourceDispatch
  types.
* Fix meta_wayland_dma_buf_source_dispatch &
  meta_wayland_dma_buf_source_funcs formatting.
* Use gpointer instead of void*.
* Rename meta_wayland_dma_buf_get_source to
  meta_wayland_dma_buf_create_source. (Carlos Garnacho)
v5:
* Explicitly handle NULL return value. (Jonas Ådahl)
v6:
* Fix style issue per check-style.py.
v7:
* Fix code style harder. (Jonas Ådahl)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 09:40:38 +01:00
Michel Dänzer
416285d1b7 wayland/dma-buf: Add meta_wayland_dma_buf_fds_for_wayland_buffer
And call it from meta_wayland_buffer_realize. This makes dma-buf fds
available for EGL image type buffers as well.

v2:
* Move buffer->dma_buf.dma_buf assignment value to next line.
  (Jonas Ådahl)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 09:40:38 +01:00
Sebastian Keller
f0fd013262 window/wayland: Calculate bottom and right frame extents
The bottom and right frame extents were never calculated and thus always
remained 0. This did not lead to any obvious problems until 6cbc5180
which started relying on those to calculate the buffer rect. This
resulted for example in window screenshots being cut off at the bottom
right corner of the window rather than the buffer.

Fixes: 6cbc5180
Closes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6050
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2720>
2022-11-26 15:04:00 +01:00
msizanoen1
992e169d84 wayland/pointer-gestures: Fix crash in get_*_gesture after pointer is destroyed
Properly handle cases where the pointer object has already been
destroyed to prevent the compositor from crashing with a null pointer
dereference when a client invokes a get_*_gesture method after the
pointer object is destroyed e.g. when the current login session is not on
foreground.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2237
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2690>
2022-11-25 15:40:12 +00:00
Bilal Elmoussaoui
7bf07d2980 core/window: Implement GInitable
Currently, we will notify the display about a new window being created
during the constructed phase of the GObject. During this time,
property-change notifications are frozen by GObject, so we'll emit a few
::notify signals only after the window-created signal, although
the actual property change happened before that.

This caused confusion in gnome-shell code where a notify::skip-taskbar =
true emission was seen when the property already was true inside a
window-created handler before.

In order to fix that that, we notify the window creation
post-construction
of the GObject on GInitable.init vfunc

Details
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6119#note_1598983
Fixes https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/6119

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2703>
2022-11-22 11:29:38 +01:00
Bilal Elmoussaoui
5aa104c48d xwayland: Correct the flag of the surface property
As the surface is cleaned up when the window is dropped, marking it
as construct property more correct & mark it as static_strings while at
it.

Fixes a regression caused by
https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2418

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2703>
2022-11-22 11:27:17 +01:00
Bilal Elmoussaoui
6b77532a23 window: Move surface property to it subclasses
As we have specific window types per display server,
having it in the parent class makes building without wayland
harder to achieve

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2418>
2022-11-17 11:30:56 +00:00
Bilal Elmoussaoui
c3a01e4e18 core: Untangle meta_window_shared_new
The constructor used to take Wayland/X11 specific types which makes
building without Wayland/X11 not possible.

Related: https://gitlab.gnome.org/GNOME/mutter/-/issues/2272
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2418>
2022-11-17 11:30:56 +00:00
Robert Mader
7e838b1115 wayland/outputs: Implement wl_output v4
This version adds the name and description events already present
in xdg_output.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2692>
2022-11-10 13:45:05 +01:00
Robert Mader
1b1eed0dbd wayland/outputs: Implement wl_output v3
This version adds a release event, allowing clients to tell the
server that it can clean up the related wl_resource.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2692>
2022-11-10 13:45:05 +01:00
Jonas Ådahl
ac093dc651 wayland/xdg-shell: Send xdg_popup.popup_done when position invalid
A client may provide a positioner that places the window outside of its
parent. This isn't allowed, according to spec, so we hide the window and
log a warning. This, however, leads these affected clients with an
incorrect view of what is mapped or not, meaning it becomes harder to
recover.

Fix this by sending xdg_popup.done when we hide the popup due to an
invalid position. Don't error out the client, let the bug slide, as
that's a less jarring experience for existing applications that
reproduce this than being disconnected, which practically feels like a
crash.

Related: https://gitlab.gnome.org/GNOME/mutter/-/issues/2408
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2645>
2022-11-06 13:06:37 +00:00
Robert Mader
d313c8f4fe Revert "wayland/pointer-constraints: Fix window check on subsurfaces"
This reverts commit 50288d1ead.

The fix is uncomplete and causes crashes under certain circumstances.
As we are close to the next point release let's revert it for now.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2685>
2022-11-03 13:17:40 +01:00
Robert Mader
50288d1ead wayland/pointer-constraints: Fix window check on subsurfaces
`get_window()` is not implemented by the subsurface role, returning
`NULL`, breaking constrains for subsurfaces.
While the `get_window()` behaviour could change in the future, for now
use `get_toplevel_window()` which does what we need here while avoiding
possible regressions.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2223
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2681>
2022-11-01 17:04:16 +01:00
msizanoen1
b61b0478f7 xwayland: Always require X11 authentication
This reverts commit eac227a203.

Currently, Flatpak applications can bypass the X11 permission setting
and access the X server through abstract sockets because X11 authentication
is not enforced for the current user ID.

Fix this by always requiring X11 authentication for Xwayland. This also
means applications without XAUTHORITY set to the file with Mutter's
Xwayland credentials cannot connect to X, including apps launched from
VT or SSH.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2633>
2022-10-21 14:06:28 +00:00
Jonas Ådahl
cefa4044d1 Revert "wayland-keyboard: Don't send pressed keys on enter"
Back in 2014 sending pressed keys to Wayland clients caused issues,
because at least Xwayland didn't handle that gracefully, causing issues
like ghost-pressed keys. A way it was reproduced was quickly alt-tab:ing
to and from a Firefox window, which would cause the File menu bar
incorrectly appearing.

While this was reported to the Xwayland component back then, it was,
probably by mistake, assumed to be an issue in mutter, and mutter
stopped sending pressed key events on enter.

The following year, Xwayland was eventually fixed, but the work around
in mutter has been kept around until it was again noticed as an
inconsistency between compositor implementations.

Lets remove the work around, and follow the spec, again.

This reverts commit c39f18c2d4.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2457
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2657>
2022-10-19 15:19:34 +00:00
Jonas Ådahl
ed8275ec33 wayland/seat: Don't double-disable input classes
We'd set the capabilities to 'none', meaning all previously enabled
device classes would be disabled. That means we shouldn't re-disable
them directly after.

This ensures '..disable()' is only called once for every '..enable()'.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2657>
2022-10-19 15:19:34 +00:00
Max Zhao
87e1d72cd4 wayland: Fix null pointer deference in meta_get_first_subsurface_node.
In fcfe90aa, multiple for loops were replaced with
META_WAYLAND_SURFACE_FOREACH_SUBSURFACE.

However, this substitution was not side-effect free, and introduced a
null-pointer dereference risk as shown in the example below:

Old:

    for (n = g_node_first_child (surface->subsurface_branch_node);
         n;
         n = g_node_next_sibling (n))
      {
        if (G_NODE_IS_LEAF (n))
          continue;

        meta_wayland_surface_update_outputs_recursively (n->data);
      }

n is checked for NULL during each loop in the condition expression.
Therefore, when `G_NODE_IS_LEAF (n)` is called, `n` is guaranteed not to
be NULL. Note also that g_node_first_child is also NULL-safe since it
performs a NULL check internally.

New:

    META_WAYLAND_SURFACE_FOREACH_SUBSURFACE (surface, subsurface_surface)
      meta_wayland_surface_update_outputs_recursively (subsurface_surface);
    =
    for (GNode *G_PASTE(__n, __LINE__) = meta_get_first_subsurface_node ((surface)); \
     (subsurface = (G_PASTE (__n, __LINE__) ? G_PASTE (__n, __LINE__)->data : NULL)); \
     G_PASTE (__n, __LINE__) = meta_get_next_subsurface_sibling (G_PASTE (__n, __LINE__)))

In the new logic `subsurface` is still checked for NULL in the loop
condition. However, in the new loop init:

    ...
    meta_get_first_subsurface_node (MetaWaylandSurface *surface)
    ...

    n = g_node_first_child (surface->subsurface_branch_node);
    if (!G_NODE_IS_LEAF (n))
    ...

The above implementation performs a `G_NODE_IS_LEAF` call, which
performs a dereference on `n`, without first checking for NULLs.

This NULL dereference triggers the following gnome-shell crash:

    Core was generated by `/usr/bin/gnome-shell'.
    Program terminated with signal SIGSEGV, Segmentation fault.
    #0  meta_get_first_subsurface_node (surface=0x55d589623450) at ../src/wayland/meta-wayland-surface.h:399
    #1  pointer_can_grab_surface (pointer=0x7f6dc4012700, surface=0x55d589623450) at ../src/wayland/meta-wayland-pointer.c:1306
    #2  0x00007f6ddb94d509 in meta_wayland_pointer_can_grab_surface (pointer=<optimized out>, surface=surface@entry=0x55d589623450, serial=serial@entry=996) at ../src/wayland/meta-wayland-pointer.c:1321
    #3  0x00007f6ddb950d05 in meta_wayland_seat_get_grab_info (seat=seat@entry=0x55d586c24f20, surface=0x55d589623450, serial=996, require_pressed=require_pressed@entry=0, x=x@entry=0x0, y=y@entry=0x0)
        at ../src/wayland/meta-wayland-seat.c:467

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2655>
2022-10-17 12:38:21 +00:00
Jonas Ådahl
21cddbae95 tests/wayland-fullscreen: Also test toggling fullscreen
This tests that unfullscreen makes the black background disappear, and
that fullscreening again makes it re-appear.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2338>
2022-10-10 18:16:51 +00:00
Jonas Ådahl
19df8888fb tests/wayland-fullscreen: Check surface size
In the test in question, it should be smaller than the window geometry,
since the black background makes the window geomerty larger than the
surface.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2338>
2022-10-10 18:16:51 +00:00
Sebastian Wick
909616b208 window-actor/wayland: Draw black background for fullscreen windows
Fullscreen Wayland toplevel surfaces don't need to respect the
configured size in which case it should be shown centered on the monitor
with a black background. The black background becomes part of the window
geometry.

The surface container is responsible for correctly culling the surfaces
and making sure the surface actors are removed from the actor tree to
avoid destroying them.

The window actor culling implementation assumes all surfaces to be direct
children of said actor. The introduction of the surface_container actor
broke that assumption. This implements the culling interface in
MetaWindowActorWayland which is aware of the actor surface_container and
fullscreen state.

v2: Fix forwarding culling to surface even if there is a background.
v2: Don't alter passed geometry.
v2: Update window geometry code documentation to reflect these changes.
v2: Only use constrained rect if we're acked fullscreen.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2338>
2022-10-10 18:16:51 +00:00
Jonas Ådahl
8832a5a1c2 window/wayland: Keep track of last acked configuration
This is helpful to know what current state a window actually have, in
contrast to the state in MetaWindow (e.g. MetaWindow::fullscreen) which
is the intended state, be it current or not yet so.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2338>
2022-10-10 18:16:51 +00:00
Jonas Ådahl
6cbc518089 window/wayland: Update buffer and frame rect in the same place
First make sure we call 'move_resize()' in all cases where the size or
position can change, then move the updating of the buffer rect to the
same place as we update the frame rect. This means keeping track of
surface size changes, in addition to geometry changes, and calling
finish_move_resize() whenever any of those changes, in addition to
acknowledged configurations.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2338>
2022-10-10 18:16:51 +00:00
Jonas Ådahl
47c8063b30 window/wayland: Calculate position also for acked fullscreen configs
An acked fullscreen window also need to have its position updated in
response to a configure ack, so that it's moved to the right position
(e.g. correct monitor).

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2338>
2022-10-10 18:16:51 +00:00
Jonas Ådahl
2a62e690a2 window/wayland: Use scale for configured rect in configuration
When a window configuration is constructed for a Wayland surface it
contains a position, size and a scale. The scale is the geometry scale
for the configuration, i.e. before the size is sent the passed dimension
is divided with the passed scale.

When moving between monitors with different scales, if we use the
existing geometry scale, this means we will send a configure event with
incorrect dimensions. Fix this by calculating the scale used in the
configuration given the rect we're configuring with as this will mean
the correct size will be sent to the client.

v2: Removed the fullscreen condition. Don't know why it was added to
begin with.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2338>
2022-10-10 18:16:51 +00:00
Jonas Ådahl
f4645b0a37 window: Make the caller decide when to constrain
There were some magic conditions that decided when
meta_window_constrain() was to be called or not. Reasoning about and
changing these conditions were complicated, and in practice the caller
knows when constraining should be done. Lets change things by adding a
'constrain' flag to the move-resize flags that makes this clearer. This
way we can, if needed, have better control of when a window is
constrained or not without leaking that logic into the generic
to-constrain-or-not expression.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2338>
2022-10-10 18:16:51 +00:00
Carlos Garnacho
1023592f8a wayland: Cancel active pointer gestures with wl_pointer.leave
There may be an active pointer gesture at the time of a focus change, in
which case we should cancel it. Add the plumbing so that happens, by
looking at the active MetaWaylandPointerClient gesture.

Closes: https://gitlab.gnome.org/GNOME/gtk/-/issues/5199
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2640>
2022-09-29 12:36:43 +00:00
Carlos Garnacho
57074463ab wayland: Add pointer gesture cancellation internal API
This is ATM unused, but will be used to trigger cancellation of
any active gesture.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2640>
2022-09-29 12:36:43 +00:00
Carlos Garnacho
bbf57d092c wayland: Keep track of active pointer gestures
Only one of them may be active at a time, so track the type
of active gesture so it can get properly cancelled.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2640>
2022-09-29 12:36:43 +00:00
Carlos Garnacho
b85f85d665 wayland: Refactor pointer gesture .end emission event
We will want to trigger this from multiple places for cancellation.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2640>
2022-09-29 12:36:43 +00:00
Michel Dänzer
0b7de744a0 wayland/dma-buf: Use meta_renderer_native_send_modifiers
Do not send modifiers if meta_renderer_native_send_modifiers says not to
(and we use scanout).

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2637>
2022-09-22 08:32:02 +00:00
Sebastian Wick
b4b9a7c90f core: Move remaining default focus window handling to workspace
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2489>
2022-09-20 17:14:53 +00:00
Jonas Ådahl
dad384376a wayland/data-device: Clean up coding style a bit
There were a few very long lines, it partly didn't follow function
argument alignment and used glib types instead of stdint types.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2619>
2022-09-19 14:46:01 +00:00
Jonas Ådahl
c676beea6c xwayland: Move "code like" declarations to the bottom
They'll be closer to the code but still after the "boring" declarations.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2619>
2022-09-19 14:46:00 +00:00
Jonas Ådahl
1d4cdd1eb5 wayland/dma-buf: Always send modifiers when using surfaceless
We'll never scan out, which is why ADDFB2 is required otherwise, and we
won't enable the DMA buffer extension if
'EGL_EXT_image_dma_buf_import_modifiers' is missing, so send modifiers
in this case.

This also happens to avoid crashing when the GPU is null, since we'd
otherwise attempt to dereference it.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2578>
2022-09-02 20:43:05 +00:00
Simon McVittie
4bc5833144 Consistently pass timestamp as uint64 when creating MetaStartupSequence
Passing the wrong type to a varargs function can cause a mismatch
between marshalling and unmarshalling on the stack, particularly on
32-bit architectures. This results in a build-time test failure.

Resolves: https://gitlab.gnome.org/GNOME/mutter/-/issues/2065
Signed-off-by: Simon McVittie <smcv@debian.org>
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2182>
2022-09-02 15:21:27 +00:00
Carlos Garnacho
a9ae43ff43 wayland: Ignore text_input requests from unfocused clients
This is what the protocol says we should do, and even though normally
an out of focus client should not have any reason to create IM requests,
there is a bit of a grey area around focus changes, as both the client
losing focus and the client gaining focus may respectively try to
disable/enable in an undetermined order.

Anyways, since in that situation the client losing focus is not aware
of the requests being ignored, the serial should always be incremented
in order not to break accounting of .done/.commit for that specific
client.

Fixes the IM focus being possibly "lost" after changing focus between
clients, if the race condition turned the odds in that direction.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2585>
2022-09-02 09:19:42 +00:00
Jonas Ådahl
ccb6a7e84f monitor: Allow vendor/product/serial to return NULL
Same applies to MetaOutput. The reason for this is to make it possible
to more reliably know when there was EDID telling us about these
details. This will be used for colord integration.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2141>
2022-09-01 14:31:40 +00:00
Carlos Garnacho
9d558e334c wayland: Unlink surface listener when freeing token
If the token ended up consumed and freed, we might leave a dangling
destroy listener after freeing the token struct.

Fixes: ed516dde89 (wayland: Add destruction listener to activation token surface)
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2594>
2022-08-25 11:15:01 +02:00
Carlos Garnacho
ed516dde89 wayland: Add destruction listener to activation token surface
In the timespan between an activation token being created and the
token being used by the activated application, the surface that started
the activation request may end up destroyed/disposed.

In that case, the token would be left with a stale surface pointer,
maybe causing crashes later on. Set up a destroy notification listener
so that we do know to unset the token surface if that situation arises,
this will result in Mutter not considering the token activatable, thus
maybe issuing the "Application needs attention" notification if the
activated surface did not immediately get focus. In any case this is
better than a compositor crash.

A typical situation where this may happen is "Open With..." dialogs,
since those don't live long after launching the application.

Fixes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2390
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2592>
2022-08-23 22:56:42 +02:00
Carlos Garnacho
9c402bd091 wayland: Ensure to remove destroy listener for MetaWaylandBuffer
Avoid the chance of invalid memory access by leaving the wl_listener
behind when handling the destroy notification.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2588>
2022-08-23 17:06:07 +00:00
Carlos Garnacho
f4f39d3a2c wayland: Ensure to unlink destroy listeners for subsurfaces
There is some surface tracking going on here, and all notify handlers
are possibly leaving the linked wl_listener behind. Ensure it is unlinked
in all destroy notification functions.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2588>
2022-08-23 17:06:07 +00:00
Carlos Garnacho
51064c1b4e wayland: Ensure to unlink destroy listeners after destruction
This is missed in some wl_listeners added
through wl_resource_add_destroy_listener(). Ensure this is done consistently
for all notify functions.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2588>
2022-08-23 17:06:07 +00:00
Carlos Garnacho
0d47b467f6 wayland: Fix thinko in paired tablet loop filter
This condition is inverted of how it should be. Since pad focus relies
on grouped devices lookups (e.g. pads not grouped with a tablet do not
focus surfaces), this fixes issues in pad focus and event propagation to
wayland clients.

Fixes: fff3654941 - wayland: Check input device capabilities in tablet seats
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2573>
2022-08-13 00:39:54 +02:00
Jonas Ådahl
5f96194e9e window/wayland: Always update the monitor when updating
If the window didn't have a size, it would still have a monitor, and
when we are asked to update, we must update, as the old monitor might
not be kept around, leaving us vulnerable to use after free.

Avoid not updating the monitor by using the stored IDs (preferred, or
previous) to find suitable logical monitors, with the primary monitor
being the last fallback unless we're completely headless.

This fixes the assert

  !window->monitor ||
  g_list_find (meta_monitor_manager_get_logical_monitors (monitor_manager),
               window->monitor)

in meta_window_update_for_monitors_changed() being hit when a Wayland
window has been created, but not mapped, when a hotplug happens.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2554>
2022-08-11 11:32:42 +00:00
Jonas Ådahl
24965a78da window: Make monitor from rect finder helper more clearly named
The function finds a suitable logical monitor given the window
rectangle; this wasn't all that clear from the name
"calculate_main_logical_monitor".

This is in preparation for finding a new logical monitor using things
other than the geometry of the window.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2554>
2022-08-11 11:32:42 +00:00
Robert Mader
01a4ec1841 wayland/outputs: Report actual monitor transform
Now that we support Wayland buffer transforms in all cases, we can
properly report them to outputs.
Also make sure we resend the output geomerty on transform changes.

This partly reverts commit bda9c359

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/344>
2022-08-05 20:30:50 +02:00
Robert Mader
385df73276 wayland/cursor-surface: Pass buffer-transform to cursor sprite
This was previously forgotten, effectively disabling pre-rotated
hardware cursors.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/344>
2022-08-05 20:30:50 +02:00
Jonas Ådahl
a07fd4ee66 wayland/dma-buf: Only try to query KMS device on native backend
This fixes a crash when using the nested backend and DMA buf Wayland
clients.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2553>
2022-08-04 09:38:47 +02:00
Jonas Ådahl
2cb7499735 wayland: Add single pixel buffer support
The "single pixel buffer" Wayland protocol extension provides a way for
clients to create 1x1 buffers with a single color, specified by
providing the color channels (red, green and blue) as well as the
alpha channel as a 32 bit unsigned integer.

For now, this is turned into a 1x1 texture. Future potential
improvements is to hook things up to the scanout candidate logic and
turn it into a scanout capable DMA buffer.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2246>
2022-08-02 12:19:42 +00:00
Jonas Ådahl
34475e7e98 wayland/dma-buf: Always send modifiers if AddFB2() is supported
To Wayland clients, it doesn't matter how we configure our onscreen
buffers, since they don't necessarily have the same bandwidth issues
related to mode setting, whichis the primary reason why we disable
modifiers using the udev rule, so simply check whether importing with
modifiers will work at all and advertise modifiers if so is the case.

This might help avoid issues using legacy non-modifiers path in drivers.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2546>
2022-08-02 10:04:52 +00:00
Jonas Ådahl
1844dcc08e wayland/dma-buf: Get backend via MetaContext
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2546>
2022-08-02 10:04:52 +00:00
Jonas Ådahl
bd4dd6b1e8 wayland/compositor: Add MetaContext getter
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2546>
2022-08-02 10:04:52 +00:00
Robert Mader
9e71278488 Revert "wayland/surface: Swap 90 and 270 degree transforms"
As testing of direct scanout revealed, `META_MONITOR_TRANSFORM`
does actually match `WL_OUTPUT_TRANSFORM` enums. The fact that
things rendered correctly with 90/270 degree values swapped
was because other parts of the stack got the interpretation
wrong, most notably `meta_rectangle_transform()`.
Thus lets revert this change and fix the stack accordingly.

This reverts commit 8d9bbe109b.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2459>
2022-07-26 18:41:43 +00:00
Michel Dänzer
d928b6baa6 wayland: Clean up tablet manager state
Fixes memory leak:

==995170== 936 (40 direct, 896 indirect) bytes in 1 blocks are definitely lost in loss record 15,090 of 15,641
==995170==    at 0x48445EF: calloc (vg_replace_malloc.c:1328)
==995170==    by 0x4B211D0: g_malloc0 (gmem.c:155)
==995170==    by 0x4A56693: meta_wayland_tablet_manager_new (meta-wayland-tablet-manager.c:109)
==995170==    by 0x4A56693: meta_wayland_tablet_manager_init (meta-wayland-tablet-manager.c:126)
==995170==    by 0x4A3FA95: meta_wayland_compositor_new (meta-wayland.c:626)
==995170==    by 0x49C7FA7: meta_context_start (meta-context.c:412)
==995170==    by 0x10F065: main (mutter.c:148)

Fixes: 745cb67988 ("wayland: Initialize the MetaWaylandTabletManager")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2527>
2022-07-25 14:55:59 +00:00
Michel Dänzer
f3cd2b8ce7 wayland: Clean up output state
Fixes memory leak:

==995170== 383 (96 direct, 287 indirect) bytes in 1 blocks are definitely lost in loss record 14,733 of 15,641
==995170==    at 0x483F7B5: malloc (vg_replace_malloc.c:381)
==995170==    by 0x4B21178: g_malloc (gmem.c:125)
==995170==    by 0x4B395C0: g_slice_alloc (gslice.c:1072)
==995170==    by 0x4B0766D: g_hash_table_new_full (ghash.c:1071)
==995170==    by 0x4A4A8B4: meta_wayland_compositor_update_outputs (meta-wayland-outputs.c:483)
==995170==    by 0x4A4ABAB: meta_wayland_outputs_init (meta-wayland-outputs.c:716)
==995170==    by 0x4A3FA65: meta_wayland_compositor_new (meta-wayland.c:620)
==995170==    by 0x49C7FA7: meta_context_start (meta-context.c:412)
==995170==    by 0x10F065: main (mutter.c:148)

v2:
* Use meta_backend_get_monitor_manager. (Jonas Ådahl)

Fixes: 9a4783e364 ("Integrate the monitor manager with wayland")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2527>
2022-07-25 14:55:59 +00:00
Michel Dänzer
806e64dcb0 wayland: Clean up presentation-time state
Fixes memory leak:

==995170== 288 (96 direct, 192 indirect) bytes in 1 blocks are definitely lost in loss record 14,607 of 15,641
==995170==    at 0x483F7B5: malloc (vg_replace_malloc.c:381)
==995170==    by 0x4B21178: g_malloc (gmem.c:125)
==995170==    by 0x4B395C0: g_slice_alloc (gslice.c:1072)
==995170==    by 0x4B0766D: g_hash_table_new_full (ghash.c:1071)
==995170==    by 0x4A4F973: meta_wayland_init_presentation_time (meta-wayland-presentation-time.c:222)
==995170==    by 0x4A3FB04: meta_wayland_compositor_new (meta-wayland.c:635)
==995170==    by 0x49C7FA7: meta_context_start (meta-context.c:412)
==995170==    by 0x10F065: main (mutter.c:148)

Fixes: dccc60ec3e ("wayland: Implement stub presentation-time")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2527>
2022-07-25 14:55:59 +00:00
Michel Dänzer
b329dce070 wayland: Clean up xdg-activation state
Fixes memory leak:

==995170== 240 (48 direct, 192 indirect) bytes in 1 blocks are definitely lost in loss record 14,428 of 15,641
==995170==    at 0x48445EF: calloc (vg_replace_malloc.c:1328)
==995170==    by 0x4B211D0: g_malloc0 (gmem.c:155)
==995170==    by 0x4A3CDB3: meta_wayland_activation_init (meta-wayland-activation.c:383)
==995170==    by 0x4A3FB0C: meta_wayland_compositor_new (meta-wayland.c:636)
==995170==    by 0x49C7FA7: meta_context_start (meta-context.c:412)
==995170==    by 0x10F065: main (mutter.c:148)

Fixes: ec390b68c5 ("wayland: Implement the xdg-activation protocol")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2527>
2022-07-25 14:55:59 +00:00
Michel Dänzer
4ddefb9a69 wayland: Clean up scheduled_surface_associations hash table
Fixes memory leak:

==995170== 192 (96 direct, 96 indirect) bytes in 1 blocks are definitely lost in loss record 14,260 of 15,641
==995170==    at 0x483F7B5: malloc (vg_replace_malloc.c:381)
==995170==    by 0x4B21178: g_malloc (gmem.c:125)
==995170==    by 0x4B395C0: g_slice_alloc (gslice.c:1072)
==995170==    by 0x4B0766D: g_hash_table_new_full (ghash.c:1071)
==995170==    by 0x4A3F3A4: meta_wayland_compositor_init (meta-wayland.c:477)
==995170==    by 0x4E1F509: g_type_create_instance (gtype.c:1929)
==995170==    by 0x4E03DFC: g_object_new_internal (gobject.c:2011)
==995170==    by 0x4E0538C: g_object_new_with_properties (gobject.c:2181)
==995170==    by 0x4E05D40: g_object_new (gobject.c:1821)
==995170==    by 0x4A3F8C4: meta_wayland_compositor_new (meta-wayland.c:590)
==995170==    by 0x49C7FA7: meta_context_start (meta-context.c:412)
==995170==    by 0x10F065: main (mutter.c:148)

Fixes: 8df2a1452c ("wayland: Notify actively of xwayland window/surface associations")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2527>
2022-07-25 14:55:59 +00:00
Michel Dänzer
39fd32c362 wayland: Disconnect signals when Wayland compositor object is finalized
Fixes potential use-after-free during mutter shutdown, e.g.:

==993876== Invalid read of size 8
==993876==    at 0x4A4FCA3: meta_wayland_presentation_time_ensure_feedbacks (meta-wayland-presentation-time.c:373)
==993876==    by 0x4A3F07F: on_presented (meta-wayland.c:282)
==993876==    by 0x661B7E9: ??? (in /usr/lib/x86_64-linux-gnu/libffi.so.8.1.0)
==993876==    by 0x661A922: ??? (in /usr/lib/x86_64-linux-gnu/libffi.so.8.1.0)
==993876==    by 0x4DFF4BC: g_cclosure_marshal_generic_va (gclosure.c:1648)
==993876==    by 0x4DFE948: _g_closure_invoke_va (gclosure.c:893)
==993876==    by 0x4E17498: g_signal_emit_valist (gsignal.c:3406)
==993876==    by 0x4E176BE: g_signal_emit (gsignal.c:3553)
==993876==    by 0x51D9DB5: clutter_stage_view_notify_presented (clutter-stage-view.c:1226)
==993876==    by 0x499ACD2: frame_cb (meta-stage-view.c:83)
==993876==    by 0x499ACD2: frame_cb (meta-stage-view.c:43)
==993876==    by 0x50CAA41: notify_event (cogl-onscreen.c:175)
==993876==    by 0x50CAA41: _cogl_onscreen_notify_complete (cogl-onscreen.c:545)
==993876==    by 0x4A877F5: meta_onscreen_native_notify_frame_complete (meta-onscreen-native.c:211)
==993876==  Address 0x24b7be58 is 296 bytes inside a block of size 344 free'd
==993876==    at 0x484217B: free (vg_replace_malloc.c:872)
==993876==    by 0x4E1F88B: g_type_free_instance (gtype.c:2001)
==993876==    by 0x49C793C: meta_context_dispose (meta-context.c:675)
==993876==    by 0x4E037E0: g_object_unref (gobject.c:3636)
==993876==    by 0x4E037E0: g_object_unref (gobject.c:3553)
==993876==    by 0x10F145: glib_autoptr_clear_GObject (gobject-autocleanups.h:27)
==993876==    by 0x10F145: glib_autoptr_clear_MetaContext (meta-context.h:32)
==993876==    by 0x10F145: glib_autoptr_cleanup_MetaContext (meta-context.h:32)
==993876==    by 0x10F145: main (mutter.c:126)
==993876==  Block was alloc'd at
==993876==    at 0x483F7B5: malloc (vg_replace_malloc.c:381)
==993876==    by 0x4B21178: g_malloc (gmem.c:125)
==993876==    by 0x4B395C0: g_slice_alloc (gslice.c:1072)
==993876==    by 0x4B39C29: g_slice_alloc0 (gslice.c:1098)
==993876==    by 0x4E1F544: g_type_create_instance (gtype.c:1901)
==993876==    by 0x4E03DFC: g_object_new_internal (gobject.c:2011)
==993876==    by 0x4E0538C: g_object_new_with_properties (gobject.c:2181)
==993876==    by 0x4E05D40: g_object_new (gobject.c:1821)
==993876==    by 0x4A3F864: meta_wayland_compositor_new (meta-wayland.c:585)
==993876==    by 0x49C7FA7: meta_context_start (meta-context.c:412)
==993876==    by 0x10F065: main (mutter.c:148)

Fixes: 2ce3a050f0 ("wayland: Wire up presentation-time machinery")
Fixes: 8cff3b84f7 ("wayland/compositor: Process frame callbacks on 'after-update'")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2527>
2022-07-25 14:55:59 +00:00
Michel Dänzer
709d06e89e wayland/surface: The same sub-surface is not a valid sibling
The Wayland protocol documentation at
https://wayland.app/protocols/wayland#wl_subsurface:request:place_above
says:

 The reference surface must be one of the sibling surfaces, or the
 parent surface. Using any other surface, including this sub-surface,
 will cause a protocol error.

v2:
* Leave it as a single line. (Georges Basile Stavracas Neto)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2525>
2022-07-21 17:03:12 +02:00
Michel Dänzer
ddb7f84291 wayland/surface: Simplify is_child & is_sibling
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2525>
2022-07-21 17:03:12 +02:00
Carlos Garnacho
ffac294520 clutter: Pass anchor position to ClutterInputFocus
Some implementations may need this (namely, the one that drives
the Wayland protocol), so pass this along from the IM events.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2517>
2022-07-19 11:04:56 +00:00
José Expósito
9dd6268d13 wayland/pointer: Send high-resolution scroll data
Upgrade the seat protocol to version 8 and change the scroll handler to
support new clients.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1962>
2022-07-14 22:29:56 +00:00
Dor Askayo
f037c9df66 wayland/dma-buf: Don't require modifiers support for scanout tranche
When building the list of formats to be sent as part of the scanout
tranche, avoid requiring modifier support by the DRM driver for
formats relying on implicit modifiers (DRM_FORMAT_MOD_INVALID).

Specifically, the previous check required the DRM driver to have
advertised some modifier support for the given format in its
IN_FORMATS KMS plane property, regardless of modifier it was. If it
hadn't, the format was left out of the list of formats to be sent
in the scanout tranche.

When no formats remained to be sent in the scanout tranche, the
tranche simply wasn't sent.

This resulted in the scanout tranche never being sent for GPUs where
modifiers aren't supported. In those cases, no formats are advertised
using the IN_FORMATS property, and thus the list of formats to be sent
in the scanout tranche remained empty.

Since Mesa doesn't use scanout-compatible buffers for native Wayland
clients unless specifically requested to do so using the "scanout"
tranche flag, it effectively means that direct scanout of native
Wayland clients wasn't supported for GPUs without modifiers support.

Sending a tranche with formats paired with the implicit modifier
(DRM_FORMAT_MOD_INVALID) is both allowed by the protocol and is
already done by default for GPUs with modifiers support, unless the
experimental support for explicit modifiers is enabled in Mutter.

So instead of requiring modifiers to be supported for each format
being evaluated for the scanout tranche, when processing formats
which rely on implicit modifiers, only check if the format in
question is supported by the DRM driver for scanout on the primary
plane.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2510>
2022-07-12 18:53:30 +03:00
Robert Mader
1a56a53909 wayland/actor-surface: Consider clones in is_on_logical_monitor()
While the check for `clutter_actor_has_mapped_clones` clearly indicates
an intention to take clones into account, the following code
does not do so, likely because it predates the introduction of
`clutter_actor_is_effectively_on_stage_view()`.

Switch to that newer API in order to take clones into account. This
avoids unnecessary `wl_surface_send_enter()` and `wl_surface_send_leave()`
events when entering the overview, reducing client work.

This also avoids unnecessarily allocating a `cairo_region_t`.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2502>
2022-07-11 18:18:56 +00:00
Robert Mader
57881ba612 wayland/subsurface: Move actor unparenting back to rebuild_surface_tree()
Unparenting the surface actor when the subsurface object is destroyed
has several issues:
 - subsurface actors can be unparented while a close animation is
   still ongoing, breaking the animation for e.g. Firefox.
 - adding and removing the actor to/from the parent is not handled in
   one place, making the code harder to follow.
 - if the destroyed subsurface had children of its own, they potentially
   stick around until a surface-tree rebuild. This makes the Firefox
   hamburger menu not close with the "compositor" backend.

Move the unparenting back to
`meta_window_actor_wayland_rebuild_surface_tree()` and instead just
notify the parent of a state change, if it still exist. This will ensure
a correct mapping between the subsurface node tree and the flat surface
actor list. In case of the closing animation the parent will already be
removed and the call is skipped.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2501>
2022-07-11 17:23:10 +00:00
Dor Askayo
cd68d5b26c wayland/surface: Remove leftover function declarations
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2485>
2022-07-01 16:05:33 +00:00
Michel Dänzer
4af54225de wayland/dma-buf: Free feedback in surface_feedback_surface_destroyed_cb
Fixes leak:

==14889== 2,168 (16 direct, 2,152 indirect) bytes in 1 blocks are definitely lost in loss record 15,308 of 15,584
==14889==    at 0x48445EF: calloc (vg_replace_malloc.c:1328)
==14889==    by 0x4BAC1D0: g_malloc0 (gmem.c:155)
==14889==    by 0x4AAFF60: meta_wayland_dma_buf_feedback_new (meta-wayland-dma-buf.c:298)
==14889==    by 0x4AAFFE0: meta_wayland_dma_buf_feedback_copy (meta-wayland-dma-buf.c:317)
==14889==    by 0x4AB16B6: ensure_surface_feedback (meta-wayland-dma-buf.c:1121)
==14889==    by 0x4AB1848: dma_buf_handle_get_surface_feedback (meta-wayland-dma-buf.c:1169)
==14889==    by 0x66F77E9: ??? (in /usr/lib/x86_64-linux-gnu/libffi.so.8.1.0)
==14889==    by 0x66F6922: ??? (in /usr/lib/x86_64-linux-gnu/libffi.so.8.1.0)
==14889==    by 0x5318750: ??? (in /usr/lib/x86_64-linux-gnu/libwayland-server.so.0.20.0)
==14889==    by 0x5313B99: ??? (in /usr/lib/x86_64-linux-gnu/libwayland-server.so.0.20.0)
==14889==    by 0x5316649: wl_event_loop_dispatch (in /usr/lib/x86_64-linux-gnu/libwayland-server.so.0.20.0)
==14889==    by 0x4AA7C19: wayland_event_source_dispatch (meta-wayland.c:110)

Fixes: 64e6bedb6b ("wayland/dma-buf: Add support for scanout surface feedback")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2469>
2022-06-16 10:24:42 +00:00
Jonas Ådahl
ccde353fb3 wayland/pointer-confinement: Scale region with the geometry scale
Without applying the geometry scale, to both the region and the minimum
edge distance, the confinement area becomes too small and offset on
HiDPI setups.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2110
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2460>
2022-06-13 18:38:51 +00:00
Jonas Ådahl
6d46ffccbc pointer-constraints: Move min edge distance from backend to Wayland
The min distance to the right/bottom edge depends on Wayland concepts
(wl_fixed_t) and eventually geometry scale. Move the logic the Wayland
side of the pointer constraints machinery to avoid the backend trying to
figure this out without the proper data.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2460>
2022-06-13 18:38:50 +00:00
Jonas Ådahl
71ea01f54c wayland/surface-role: Make geometry scale API return int
Geometry scale are always ints, callers always assumed they were ints,
but they were doubles. Make them ints.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2460>
2022-06-13 18:38:50 +00:00
Robert Mader
11fc5b6c6c tests/wayland: Add more requests to test driver protocol
Add `sync_effects_completed()` and `verify_view()` in
order to allow Wayland test clients to trigger verifications
and add convenience functions to use them to client-utils.

Notes:
- `sync_effects_completed()` works in two stages in order
  to ensure it doesn't race with window effects. By the time
  `sync_effects_completed()` is processed, an effect could
  already have ended or not yet been scheduled. Thus we
  defer a check for pending effects to the next paint cycle,
  assuming that by then they should have been scheduled.
- `meta_ref_test_verify_view()` internally triggers the
  `paint` signal for the stage which is why it can not be run
  in the after-paint signal handler.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1055>
2022-06-03 09:03:10 +00:00
Robert Mader
8d9bbe109b wayland/surface: Swap 90 and 270 degree transforms
Our internal interpretation of output transforms is not in line with
the Wayland spec. Wayland describes them as the transform that a
compositor will apply to a surface to compensate for the rotation
or mirroring of an output device - counter-clockwise.

Mutter in turn interprets it the other way around. One could
argue it does the same but clock-wise - or it interprets the transform
from the viewpoint of the content, not the device.

In either way, the difference is that 90 and 270 degree values are
switched. Thus swap these accordingly when we translate from
`WL_OUTPUT_TRANSFORM` to `META_MONITOR_TRANSFORM`.

See: https://gitlab.freedesktop.org/wayland/weston/issues/99
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1055>
2022-06-03 09:03:10 +00:00
Jonas Ådahl
7bf4f850b8 wayland/dma-buf: Remove no longer used mesa macro duplication
We're bumped the required mesa version, so we don't need to keep this
around anymore.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2417>
2022-06-02 08:59:13 +00:00
Jonas Ådahl
83ed7b7dfd xwayland: Remove stray newline
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2364>
2022-05-31 12:00:55 +00:00
Jonas Ådahl
c9e7cf4ea1 xwayland: Add API to send signal to the Xwayland process
Will be used for test cases to fake-crash the Xwayland process.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2364>
2022-05-31 12:00:55 +00:00
Jonas Ådahl
bdb34401c5 xwayland: Only warn on X IO errors when X11 is mandatory
This avoids warnings when we're just slightly unlucky when Xwayland went
away due to inactivity.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2364>
2022-05-31 12:00:55 +00:00
Jonas Ådahl
e1033951ef wayland: Add getter for XWayland manager object
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2364>
2022-05-31 12:00:54 +00:00
Florian Müllner
fabad0be9c wayland: Remove unnecessary COMPOSITOR_GRAB checks
Since the new ClutterGrab API replaced the old plugin-modal hook,
the event-route is never set to COMPOSITOR_GRAB.

The code in question already checks whether the stage has a grab,
so we can just remove old checks.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2436>
2022-05-28 10:25:29 +00:00
Fernando Monteiro
d4bdd8b56f wayland: Remove Gtk primary selection protocol
This has been replaced for primary selection protocol from
wayland-protocols.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2184>
2022-05-18 20:15:08 +00:00
Fernando Monteiro
11bc19fbe8 wayland: Drop xdg-shell v6 protocol
There is no need to have this protocol as we already
have support for the xdg-shell stable.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2207>
2022-05-18 19:29:08 +00:00