Somewhat long overdue... We've been supporting more than a single
pointer for quite a long time now, let's make sure things don't break if
two pointer devices enter the same ClutterActor: Count the number of
pointers an actor has instead of using a simple boolean value.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2348>
In certain edge cases it's currently possible that an actor never
gets a valid allocation and paint volume.
One such case is adding an unmapped, hidden child to an unmapped
cloned parent and then showing the child. This happens currently
e.g. if a Wayland subsurface is added to a already mapped window
while the user is in the overview.
Ensure relayouts in two more such cases.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2530>
This one does proper error reporting. Via Javascript, barriers are
constructed directly via GObject construction, which currently can't
handle error reporting, but when calling from C we can. However, if we
initialize using GInitable, and use that in our constructor method, once
gjs gains support for construction using GInitable, including the error
reporting, we'll automatically get proper error reporting to Javascript.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2442>
In the past, barries were added to the window management X11 display
instance window table, and then special cased when iterating over the
list.
Since then, barriers, which are really part of the backend, has stopped
being added to the window hash table, instead being managed by the
backend. Lets clean up the left-over special casing that is no longer
needed.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2442>
Prior to this commit, barriers were created with a MetaDisplay pointer,
despite being entities related and owned by the backend. In the X11
case, it was also not hooked up to the backend X11 connection, but the
clutter one, meaning for example that the logic was active (but dormant)
also for the Xwayland connection.
Fix this by moving X11 barrier management and event processing fully to
the backend. Also replace passing a display pointer with passing a
backend pointer. Keep the display pointer around for a release, but mark
it as deprecated.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2442>
It papered over wrong `meta_rectangle_transform()` behaviour for
non-flipped output transforms. Also there is no obvious reason
why we would need inverted values here.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2459>
- Drop bogus `meta_monitor_transform_invert()`. It papered over
wrong `meta_rectangle_transform()` behaviour for non-flipped
output transforms.
- Update `scale_and_transform_cursor_sprite_cpu` to match the GL
pipeline matrix in `MetaShapedTexture`, fixing several of the
flipped cases. Note: the rotation applied is the one a client would
need to apply to the buffer for a given monitor transform.
- While on it, drop a redundant `return`.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2459>
With `META_MONITOR_TRANSFORM` values matching their `WL_OUTPUT_TRANSFORM`
counterparts, the definition from the Wayland spec applies: the
`META_MONITOR_TRANSFORM` value tells us how the output was rotated
and that the buffer was drawn by the client to compensate for that.
The matrix describes the transformation from surface- to buffer-
coordinates, so the operation we need here is the same one that
the client applied (not from buffer- to surface-coordinates, i.e.
the inverse).
While on it fix `FLIPPED_90` and `FLIPPED_270` to use the correct
axes: flip on the x-axis, rotation on the z-axis.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2459>
`meta_rectangle_transform()` is used in the stack to *compensate* for a
`MetaMonitorTransform` applied to a output, not to apply it again.
Change the function accordingly.
Context:
Experimenting with direct scanout on offscreen-rotated outputs revealed
that the 90/270 degree cases were actually interchanged.
Further digging revealed that we use `meta_rectangle_transform()` with
those values swapped in every single case, papering over the issue.
Either a unintuitive and unexplained `meta_monitor_transform_invert()`
was added, in which case "flipped" values would be wrong, or, in case
of Wayland buffer transforms, the values were swapped by interpreting
the Wayland enums accordingly, see commit 8d9bbe10.
Swapping the 90/270 degree values in `meta_rectangle_transform()`:
1. fixes hardware cursor positioning with flipped output transforms
2. fixes rendering issues with offscreen-rotated flipped output transforms
3. allows us to drop unexplained `meta_monitor_transform_invert()`s in
follow-up commits
4. allows us to make `META_MONITOR_TRANSFORM` and `WL_OUTPUT_TRANSFORM`
enums match again (reverting 8d9bbe10, as already done)
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2459>
The following implicit definition for `transform()` did not
correctly apply:
```
a * b = c
c * invert(b) = a
```
Crucially the following did not apply for `FLIPPED-90`
and `FLIPPED-270`:
```
a * invert(a) = identity
```
Fix this by applying the operations, first the flip, then the
rotation, in this order and add tests to ensure correct results
for the requirement above.
Also drop `relative_transform()` as it only had a single user and
can be replaced by `transform()`:
```
invert(a) * b = c
a * c = b
```
As this is not very intuitive, ensure in tests as well.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2459>
Checking for both bits at once means only one matching bit is
sufficient - very likely in case of `rotate-0'.
This fixes crashes on hardware that does not support 'reflect-'
bits when setting a flipped output transform.
While on it, also update the check for `reflect-y` instead of
`reflect-x` + `rotate-180`. They are logically equivalent,
however some hardware may support `reflect-y` but not both
other bits.
Fixes commit 4e3f3842a1
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2459>
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>
The notification list in the GNOME Shell calendar popup triggers some
interesting interactions when closing a notification:
- Close button is clicked
- The notification animates to be hidden
- The next notification ends up hovered as a result of the animation
- The notification being hovered sets its close button as non-transparent
and reactive
- The pointer is now again over a close button
At this point the reactiveness change should trigger a repick, so that
the new notification's close button is picked, and future button presses
are directed to it, but we do not handle this situation.
To fix this, handle actors becoming reactive so that if the closest
reactive parent has a pointer, it will be repicked again just in case
the pointer is over the newly reactive actor.
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/2364
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2532>
The function that currently invalidates pointers over an specific actor
also asserts for the situations where this invalidation makes sense to
happen (i.e. the actor became unmapped, or non-reactive).
We want to have a function that is more forgiving, and that doesn't
enforce any guarantees about the pointer focus actually changing.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2532>
We started to report resource changes using prediction when an update
had been successfully committed. While at it, gamma changes were
reported too, but this was problematic, as gsd-color will listen for the
MonitorsChanged D-Bus signal and naively set the gamma again, even if it
didn't change. There aren't currently any actual use cases for being
told when gamma changes from a prediction, so just ignore it and just
report privacy screen changes.
This avoids a feedback loop between mutter and gsd-color.
Fixes: 81b28a1d97
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2531>
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>
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>
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>
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>
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>
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>
When we change the privacy screen, we added a result listener to the KMS
update object to notify the upper layer about the privacy screen state
change. This was slightly awkward as one might have changed the state
multiple times for a single update, thus it was necessary to remove any
old result listeners to an update before adding a new one.
Doing this will not be possible when updates are fully async and managed
by the KMS impl device.
To handle this, instead make the post-commit prediction notify about
changes that happens in response to a successfully committed update. We
already predicted the new privacy screen state, so the necessary change
was to plumb the actual change into a callback which emits the signal if
there actually was a privacy screen change.
This will then be communicated via the same signal listener that already
listens to the 'resources-changed' signal.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2340>
The name had a bit conceptual conflicts with MetaKmsUpdate, as it shared
its namespace but had no relation to it. Fix this by renaming it
MetaKmsResourceChanges (and the corresponding META_KMS_UPDATE_CHANGE_*
to META_KMS_RESOURCE_CHANGE_*). The term "resource" is used since that's
already used in the signal, and the fact that the changes partly comes
from changes in the DRM resource as retrieved by drmModeGetResources.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2340>
With this header we can set a flag to signal that the whole buffer is
corrupt and should be ignored. With this we can cater to all cases:
* Window buffer fine, but cursor broken:
Use the spa_meta_cursor properties like id or offset accordingly
* Window buffer broken, but cursor fine:
Use the chunk flags
* Both are broken / the dequeued buffer is not usable
Use the spa_meta_header flag
Additionally clients can now check if a buffer contains spa_meta_header
data and can thus only check for the new or the old behaviour.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2516>
Since the commit below, meta_crtc_kms_get_cursor_renderer_private has
returned a CrtcCursorData pointer, but this code was still treating it
as a MetaDrmBuffer pointer.
Fixes: fea8ebcca9 ("cursor-renderer/native: Store struct in CRTC private")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2524>
`clutter_actor_iter_destroy` will try to match up the iterator's `age`
with that of the parent ("root") actor:
```
g_return_if_fail (ri->age == ri->root->priv->age);
```
In a simple actor graph that's completely reasonable but somewhere in the
more complex graph of gnome-shell the parent's `age` was skipping ahead
faster than that of the iterator. This could happen in theory if the
destroy indirectly leads to more children being destroyed than the
iterator has visited.
So there's no evidence of actual corruption, only the age check might
fail in a `clutter_actor_iter_destroy` loop because the age check itself
can't handle all possible valid scenarios.
Since our only mandate is to destroy all children, we can do that reliably
without an iterator and thus without assuming anything about the parent's
`age` counter.
Fixes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4747
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2074>
PipeWire supports flags to signal a corrupted buffer. We should use the
flag SPA_CHUNK_FLAG_CORRUPTED for `chunk->flags` instead of setting
`chunk->size = 0` since the size isn't well defined for arbitrary dmabufs
and should be set to 0.
Sadly clients like obs are using a chunk size of 0 to decide if a buffer
should be imported. Thus we should offer both until clients are using
the flag.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2323>
