3585 Commits

Author SHA1 Message Date
Jonas Ådahl
68dd168e33 monitor-manager: Move backlight API to MetaOutput
It's now a signal emitted when `meta_output_set_backlight()` is called.
It is also no longer normalized between 1 and 100; that is now handled
done via the D-Bus API layer.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3861>
2024-08-31 01:06:33 +02:00
Jonas Ådahl
c4f1396570 monitor-manager: Use explicit method invocation return value
Using G_DBUSMETHOD_INVOCATION_HANDLED is clearer than TRUE in what it
means.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3861>
2024-08-31 01:06:33 +02:00
Sebastian Wick
a212f823e7 stage-impl: Use a trace counter for the damaged redraw area
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3952>
2024-08-30 22:09:55 +00:00
Sebastian Wick
322ac42a65 stage-impl: Trace the damage region
Describes the RedrawViewPrimary trace scope with the total area of the
damage and the individual rects with the format:

  AREA[ X,Y,W,H]*

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3952>
2024-08-30 22:09:55 +00:00
Wim Taymans
c7105a70f1 screen-cast: Add initial PipeWire explicit sync support
Add new param to request SyncTimeline metadata on buffer that contains
the sync points.

Add new Buffers param depending on the SyncTimeline metadata and that
adds extra space for the syncobj fd.

When we receive a buffer from PipeWire with the SyncTimeline, also set
up the spa_data with the syncobj fd and the sync type. We use the
GenericFd type.

When we render a buffer with SyncTimeline, set the acquire & release
points for the syncobj.

[ Michel Dänzer:
* Flesh out Wim's skeleton and make it compile
* Dequeue explicit-sync buffers only if the release point has signaled
* Tweak commit log
v2:
* Always check spa_buffer->n_datas as well when getting the
  SPA_META_SyncTimeline metadata (Doğukan Korkmaztürk)
* Always put space before opening parens.
v3:
* Keep a per-stream list of dequeued buffers with unsignaled release
  point. (Wim Taymans)
* Fix indentation of meta_drm_timeline_is_signaled parameters in
  dequeue_pw_buffer.
v4:
* priv->dequeued_buffers handling fixes in dequeue_pw_buffer.
v5:
* Fix bumping sync points in maybe_set_sync_points.
v6:
* Guard new code by #ifdef HAVE_NATIVE_BACKEND as needed.
* Remove unused sync_fd in dequeue_pw_buffer.
v7: (Sebastian Wick)
* Refactor can_reuse_pw_buffer helper out of dequeue_pw_buffer.
* Separate loops for priv->dequeued_buffers and pw_stream_dequeue_buffer
  in dequeue_pw_buffer.
* Add g_assert after g_hash_table_lookup.
* Prevent calling meta_drm_timeline_is_signaled with non-NULL *error.
* Use g_autoptr & g_steal_pointer for timeline in maybe_create_syncobj.
* Log meta_drm_timeline_create_syncobj / meta_drm_timeline_import_syncobj
  errors in maybe_create_syncobj.
* Use g_warning_once instead of g_warning.
* Do not close (spa_buffer->datas[1].fd) in on_stream_remove_buffer,
  g_hash_table_remove closes it.
v8:
* Fix pw_stream_dequeue_buffer loop condition in dequeue_pw_buffer.
  (Sebastian Wick)
* Use g_clear_error in can_reuse_pw_buffer. (Sebastian Wick)
* Add comment above dequeued_buffers list declaration in
  MetaScreenCastStreamSrcPrivate.
v9:
* Call g_clear_error from dequeue_pw_buffer instead of
  can_reuse_pw_buffer. (Sebastian Wick)
v10: (Jonas Ådahl)
* Move added #includes to separate HAVE_NATIVE_BACKEND block.
* Add and use enum entries for spa_buffer::datas array access.
* Clean up the end of can_reuse_pw_buffer.
* Change first argument of dequeue_pw_buffer to MetaScreenCastStreamSrc.
* Rename GSList iterator to "l".
* Clean up error handling in dequeue_pw_buffer.
* Fix second parameter to second can_reuse_pw_buffer call in dequeue_pw_buffer.
* Fix coding style of code added in on_stream_param_changed.
v11:
* Move local_error declaration inside HAVE_NATIVE_BACKEND in
  dequeue_pw_buffer.
v12: (Jonas Ådahl)
* Use new syncobj_data_from_buffer helper to retrieve acquire/release
  spa_data.
* Generally assume spa_buffer->n_datas is large enough, just spot-check
  it in strategic places.
* Use GList for dequeued_buffers list.
* Warn in meta_screen_cast_stream_src_dispose if dequeued_buffers list
  isn't empty.
v13:
* Simplify empty list test in meta_screen_cast_stream_src_dispose.
  (Jonas Ådahl)
v14:
* Refactor maybe_remove_syncobj helper out of on_stream_remove_buffer.
  This allows using g_return_if_fail in the former. (Sebastian Wick,
  Jonas Ådahl)
v15:
* Guard syncobj_data_from_buffer & enum definitions by
  HAVE_NATIVE_BACKEND, since they're unused outside of that guard.
]
[ Jonas Ådahl
v16:
* Destroy the timelines hash table after destroying the stream.
* Don't warn when getting timeline data.
* Fix n_datas sanity check condition.
]

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3876>
2024-08-30 21:07:16 +00:00
Michel Dänzer
0c10330392 screen-cast/stream-src: Add timelines hash table
Will be used to look up a MetaDrmTimeline object for a syncobj file
descriptor.

v2:
* Add comment above timelines hash table declaration in
  MetaScreenCastStreamSrcPrivate. (Bilal Elmoussaoui)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3876>
2024-08-30 21:07:16 +00:00
Jonas Ådahl
36eee131c2 settings: Allow overriding experimental settings with an env var
This makes it simpler to experiment with experimental settings without
having to make changes to any gsettings fields one might not want to
change.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3567>
2024-08-30 20:32:01 +00:00
Jonas Ådahl
b88482a56c monitor-manager: Add API to get layout mode
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3567>
2024-08-30 20:32:01 +00:00
Jonas Dreßler
e2db6c8276 Add an experimental feature for letting Xwayland clients scale natively
With the next commits we'll introduce a new mode for scaling of Xwayland apps,
we'll want to put this mode behind an experimental setting though, so add
that setting.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3567>
2024-08-30 20:32:01 +00:00
Jonas Ådahl
7635abcbf4 x11-display: Expose UI scaling factor via D-Bus
This replaces the `legacy-ui-scaling-factor` entry in
`org.gnome.Mutter.DisplayConfig`, with the motivation being to no longer
expose X11 specific state via the monitor configuration API.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3567>
2024-08-30 20:32:01 +00:00
Sebastian Wick
6fa61a088f core/debug-control: Allow changing the reference luminance of outputs
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3953>
2024-08-30 20:03:43 +00:00
Daniel van Vugt
a393bd0ad6 onscreen/native: Promote "Zero-copy disabled" message to a warning
Hiding it in debug logging was a little too hidden. Someone might want
to know why performance has degraded without having to restart in debug
mode hoping they can reproduce the issue.

Also remove an assertion that would issue spurious warnings. We should not
always expect IMPORT_STATUS_NONE (implying the first failure must be on
the first frame). Instead we might start with IMPORT_STATUS_OK for a number
of frames and then have a sporadic failure some time later.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3928>
2024-08-30 13:35:42 +00:00
Daniel van Vugt
31e280c147 onscreen/native: Don't release the dumb buffers on successful zero-copy
Because a zero-copy import might fail later for driver or resource reasons.
So we may still need the dumb buffers as a fallback.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3606
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3928>
2024-08-30 13:35:42 +00:00
Daniel van Vugt
ced0d34142 onscreen/native: Set error when a fallback framebuffer is unavailable
This will prevent a spurious g_object_ref warning being followed by
a NULL dereference in `error->message`.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3928>
2024-08-30 13:35:42 +00:00
Bilal Elmoussaoui
43295b80aa backends/stage-impl: Drop no longer useful CoglContext check
As initializing Clutter would fail making MetaBackend to fail before creating
a MetaStage

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3977>
2024-08-29 15:26:40 +02:00
Bilal Elmoussaoui
f49a2a3370 backends/cursor-tracker: Get ClutterBackend from MetaBackend
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3977>
2024-08-29 15:26:40 +02:00
Bilal Elmoussaoui
e3f4e735f5 backends/screencast: Get ClutterBackend from MetaBackend
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3977>
2024-08-29 15:26:40 +02:00
Bilal Elmoussaoui
98c36ad1c6 input/action-mapper: Get ClutterBackend from MetaBackend
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3977>
2024-08-29 15:26:40 +02:00
Bilal Elmoussaoui
5831a1a555 backends/x11: Get ClutterBackend from MetaBackend
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3977>
2024-08-29 15:26:39 +02:00
Bilal Elmoussaoui
8013049130 clutter: Stop using Settings.get_default
Instead, get it from the context. See next commit
For ClutterText, we had to switch to using constructed
as the ClutterContext will be set for the ClutterActor in the
constructor phase

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3977>
2024-08-29 15:26:39 +02:00
Bilal Elmoussaoui
8a71c89442 clutter/backend: Keep a back pointer to the Context
Will be useful in the upcoming commits

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3977>
2024-08-29 15:26:39 +02:00
Jonas Ådahl
66a45809fa kms/impl-device: Disarm deadline timer when disabling
Otherwise we'll end up firing when not expected to, e.g. when the screen
is locked and monitors are all turned off.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3629
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3982>
2024-08-29 09:23:07 +00:00
Jonas Ådahl
1d87bcaab2 kms/impl-device: Put deadline timer disarming in a helper
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3982>
2024-08-29 09:23:07 +00:00
Michel Dänzer
c2621eca15 onscreen/native: Set latest cogl sync_fd on KMS update
See previous commit log on the effects of this.

This means the deadline evasion needs to be added in both cases in
clutter_frame_clock_notify_presented.

v2:
* Use meta_kms_update_set_sync_fd. (Jonas Ådahl)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3958>
2024-08-28 14:42:38 +00:00
Michel Dänzer
996eb4b6ae kms/impl-device: Handle sync_fd in meta_kms_impl_device_handle_update
If the KMS thread is using the deadline timer, and a valid sync_file
descriptor is passed in:

1. The update is deferred, and the deadline timer is left armed, until
   the sync_fd signals (becomes readable).
2. Implicit synchronization is disabled for the KMS update.

This means cursor updates should no longer miss a display refresh
cycle due to mutter's compositing GPU work finishing too late.

v2:
* Use g_autoptr for GSource in meta_kms_impl_device_handle_update.
  (Sebastian Wick)
v3:
* Use meta_kms_update_get_sync_fd, don't track sync_fd in
  CrtcFrame::submitted_update. (Jonas Ådahl)
v4:
* Clean up CrtcFrame::submitted_update members in crtc_frame_free.
v5:
* Coding style cleanup in meta_kms_impl_device_handle_update.
  (Jonas Ådahl)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3958>
2024-08-28 14:42:38 +00:00
Michel Dänzer
369596a82b kms/update: Add meta_kms_update_get/set_sync_fd
v2:
* Use g_steal_fd in meta_kms_update_merge_from. (Jonas Ådahl)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3958>
2024-08-28 14:42:38 +00:00
Michel Dänzer
452e4fbf70 kms/plane: Rename META_KMS_ASSIGN_PLANE_FLAG_DIRECT_SCANOUT
To META_KMS_ASSIGN_PLANE_FLAG_DISABLE_IMPLICIT_SYNC. This describes the
effect of the flag, instead of the circumstances it's currently used
for.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3958>
2024-08-28 14:42:38 +00:00
Michel Dänzer
a589456209 kms/crtc: Conditionally return 0 in meta_kms_crtc_get_deadline_evasion
If both crtc->shortterm_max_dispatch_duration_us and
crtc->deadline_evasion_us are 0, i.e. we're not using the deadline
timer.

v2:
* Fix coding style. (Jonas Ådahl)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3958>
2024-08-28 14:42:38 +00:00
Sebastian Wick
a43dbd46fb cursor: Fix set_property vfunc name
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3941>
2024-08-27 19:16:36 +02:00
Daniel van Vugt
3eebe2592a monitor-config-store: Fix typos in <layoutmode> written to monitors.xml
Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3635
Fixes: 076b3664a3 ("monitor-config-store: Store and load layout mode for each configuration")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3976>
2024-08-23 11:32:19 +08:00
Florian Müllner
da828c2fcc x11/input-device: Stop using deprecated libwacom API
libwacom_has_ring/ring2 was deprecated. Switch to the replacement
function where it is available.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3974>
2024-08-22 18:48:36 +00:00
José Expósito
c7acd6074b wayland/drm-lease: Fix list initialization bug
The new_connectors list must be initialized empty, otherwise, connectors
are duplicated.

Fixes: 115b2c124711 ("wayland/drm-lease: Make MetaDrmLeaseManager::connectors a GList")
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3967>
2024-08-21 12:47:57 +00:00
Jonas Ådahl
d2be0b6950 kms: Inhibit real time scheduling until initial mode set
We're already inhibiting real time scheduling when reading new KMS state
after hot plugs, as well as when during mode sets, due to the kernel not
being able to reliably handle these within the 250 ms limit. However, we
didn't do this during initial probing, which meant that occasionally
we'd run into these kind of issues during startup.

Handle this by always inhibiting real time scheduling up front, and
don't uninhibit until all initially discovered device have finished
processing their initial mode set.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3628
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3960>
2024-08-21 12:15:59 +00:00
Michel Dänzer
bd8db38460 kms/impl-device: Track dispatch duration in crtc_frame_deadline_dispatch
And take it into account in meta_kms_crtc_get_deadline_evasion.

This uses the same fundamental approach as clutter frame clock scheduling:

Measure the deadline timer dispatch duration, keep track of the longest
duration, and set the timer to fire such that the longest measured
dispatch duration would result in it completing shortly before start of
vblank.

Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/3612

v2:
* Move DEADLINE_EVASION_CONSTANT_US addition from
  meta_kms_crtc_determine_deadline to meta_kms_crtc_get_deadline_evasion.
* Calculate how long before start of vblank dispatch completed for
  debug output in crtc_frame_deadline_dispatch.
* Shorten over-long lines in crtc_frame_deadline_dispatch.
v3:
* Take VRR into account in crtc_frame_deadline_dispatch &
  meta_kms_crtc_update_shortterm_max_dispatch_duration. (Robert Mader)
v4:
* Check if deadline has already passed in meta_kms_crtc_determine_deadline,
  set the deadline for one refresh interval later if so.
* Fix indentation in crtc_frame_deadline_dispatch.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3934>
2024-08-17 19:16:01 +00:00
Michel Dänzer
d7012d2ad3 kms/impl-device: Use KMS_DEADLINE in crtc_page_flip_feedback_flipped
It's useful for this to match the debug topic in
crtc_frame_deadline_dispatch.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3934>
2024-08-17 19:16:01 +00:00
Jonas Ådahl
e5827ea06b monitor-config-utils: Use g_list_copy_deep() to clone lists
It makes things a bit more easy to follow.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Ådahl
b8394c68f5 monitor-config-store: Use auto pointers in a couple of places
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Dreßler
05cc8a56e1 monitor-config-store: Save configs after layout mode detection/conversion
We don't want to do the work of the layout mode detection and conversion
every time we read the monitors.xml file.

Instead, when the detection logic is used, set a flag to automatically
update the config files after the parsing is finished.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Dreßler
2c8b383a7e monitor-config-store: Attempt to convert physical to logical layout modes
Introduce some "best effort" conversion code to migrate monitor configurations
from PHYSICAL (the old default) to LOGICAL (the new default on wayland)
layout mode.

This conversion will only be used when the old PHYSICAL layout-mode
configuration is not compatible with the new LOGICAL layout-mode one.
This only applies if 1) there's a monitor that needs scaling in the
layout, and 2) the scaled monitor comes before other monitors in the
coordinate system (ie. it's not the rightmost or bottommost monitor).

There are two algorithms added here to convert monitor layouts:

- One for "simple" 1-dimensional monitor layouts, where all monitors are
aligned on a vertical or horizontal strip.

Here's a few (inaccurate) examples of how this would look with different
layouts (left side is PHYSICAL, right side is LOGICAL, x is the origin of
the coordinate system, the numbers are scales of the monitors):

```
x──────┬──────┬──────┐     x  ┌──────┐
│  2   │  1   │  2   │    2┌──┤  1   ├──┐2
│      │      │      │ ──► └──┤      ├──┘
└──────┴──────┴──────┘        └──────┘

         x    ┌──────┐     x  ┌──────┐
         ┌────┤  1   │     ┌──┤  1   │
         │ 2  │      │ ──► └──┤      │
         └────┴──────┘      2 └──────┘

    x      ┌────┐
    ┌──────┤    │          x──────┐
    │      │    │          │      ├─┬────┐
    │  1   │ 3  │      ──► │  1   │3│ 1  │
    │      │    │          │      ├─┴────┘
    └──────┤    │          └──────┘
           │    ├────┐
           │    │ 1  │
           └────┴────┘
```

- A second more complex algorithm for 2-dimensional monitor layouts with
a common baseline that all monitors are aligned to.

And examples for this one:

```
             x      ┌──────┐
             ┌──────┤      │
             │  1   │  2   │     x──────┐
             │      │      │     │  1   ├────┐
             └──┬───┴───┬──┘ ──► │      │ 2  │
                │  3    │        ├──┬───┴────┘
                │       │        └──┘3
                └───────┘

       x     ┌──────┬──────┐
             │  1   │      │
             │      │      │     x──────┬──────┐
       ┌─────┴──────┤  1   │     │  1   │      │
       │            │      │     │      │      │
       │            │      │ ──► └──┬───┤  1   │
       │     3      │      │        │ 3 │      │
       │            ├──────┘        └───┤      │
       │            │                   │      │
       │            │                   └──────┘
       └────────────┘

x                  ┌───────┐
┌──────┐           │       │     x         ┌───────┐
│  2   │    ┌──────┤   1   │               │       │
│      │    │  1   │       │      2 ┌──────┤   1   │
└────┬─┴────┴─┬────┴───────┘ ──► ┌──┤  1   │       │
     │        │                  ├──┴┬─────┴───────┘
     │   2    │                  │ 2 │
     │        │                  └───┘
     └────────┘
```

These algorithms will fail for any more complex 2d monitor layout, eg.

```
x   ┌───┬────┐
    │ 2 │ 1  │
    │   ├────┘
┌───┴┬──┘
│ 1  │
└────┘

x───┬───┬───┐
│ 1 │ 2 │ 1 │
├───┼───┼───┤
│ 1 │ 1 │ 1 │
├───┼───┼───┤
│ 1 │ 1 │ 1 │
└───┴───┴───┘
```

In those cases where the conversion failed, we fall back to aligning
the monitors on a horizontal line, preserving the scale, the primary
monitor and the disabled monitors.

Note that we also need to convert the scale factor in some cases,
because LOGICAL layout mode also behaves different here:
When the scale results in a fractional logical monitor size (eg.
the native monitor width is 2560px, and a scale of 3 is set =>
2560px / 3 = 853.333px), in LOGICAL mode we won't use that scale.
Instead we have an algorithm (see
meta_monitor_get_closest_scale_factor_for_resolution()) to find
the nearest fractional scale factor which doesn't result in
fractional logical monitor size. We reuse this algorithm here for
the conversion.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Dreßler
96791f111a monitor: Move check to limit fractional scales to certain monitor sizes
We'll reuse meta_monitor_get_closest_scale_factor_for_resolution() for the
conversion of monitor configs, and during those conversions, we probably don't
want to impose the same limits to fractional scales that we usually impose.
This means that we can even convert physical layout configs where the user
manually changed to a value higher than what our fractional scale calculations
would allow.

Move this check into the calling function so that it's not imposed by
meta_monitor_get_closest_scale_factor_for_resolution() directly.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Dreßler
078d95cc15 monitor: Make function to calculate fractional scale factor public
We'll need this function for migrating from PHYSICAL layout mode to LOGICAL
layout mode soon, so make it public.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Dreßler
0d23eb1da8 monitor-config-manager: Move verification of logical monitor configs into utils
We'll need these verification utilities in the next commits where we introduce
detection for physical vs logical layout modes.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Dreßler
bbb34c2a80 monitor-config-store: Detect unkown layout modes based on the configuration
When there is no layout mode set in a logical monitor config, we currently just
assume the configuration matches the mode that the system expects. This blows
up when the layout mode expected by the system changes (eg. by turning on
"scale-monitor-framebuffers" in mutter): Suddenly configs fail the validation
check and get thrown away.

Since we now can add one configuration for each layout mode to the config store,
we can do better here: Let's only add configurations to the store where we
verified beforehand that the monitor layout is compatible with that mode, either
because we set it ourselves using the <layout_mode> key, or by detecting which
modes the layout is compatible with.

Also update monitor config ifiles to adjust for the new layout_mode, as
they all are assumed to be "logical".

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Dreßler
becee89fb9 monitor-config-manager: Verify more things about logical monitor configs
Verify even more assumptions we make about logical monitor configs:

- Have a more explicit check that the monitor modes in the logical monitor are
all equal

- Complain if scale factor with physical layout mode is fractional

- Make sure that scale factor with logical layout mode actually scales to a
non-fractional width and height

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Dreßler
a203020c4b monitor-config-manager: Move some things into common file for config utils
We'll need a few of those things from the monitor config store soon, also it's
generally useful to have a prefix which makes it clear where functions are
defined.

So factor some things out into a new monitor-config-utils.c file.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Dreßler
076b3664a3 monitor-config-store: Store and load layout mode for each configuration
Store and load the layout mode for each logical monitor configuration in
monitors.xml by introducing a new <layoutmode> element. The value of the
element can be either "logical" or "physical". The layout mode is also
made part of the monitor configuration key.

Right now this isn't doing a lot:

When no <layoutmode> is found on the config (this is the case with all
existing configs), we'll keep using the layout mode expected by the system,
without updating the config file.

When changing an existing, or introducing a new configuration, we'll now
store the current layout mode with the config though, and load it again
on the next start of mutter. This is still not problematic as long as
mutters expected layout mode doesn't change (eg. by turning on/off
"scale-monitor-framebuffers").

When the expected layout mode of mutter switches between
restarts, the monitor config is now still loaded but remains unused,
and mutter will create (and store) a new one with the other layout mode.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Dreßler
de56634fd0 Remove monitor migration support from v1 monitors.xml format
We'll introduce some new migration code with the next few commits to introduce
a layout_mode property in monitors.xml. This will be significantly easier
without keeping around the old monitor migration code, so drop it.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Dreßler
4105827254 monitor-config-manager: Do more verification of logical monitor configs
We have meta_verify_logical_monitor_config() already, and it does a few checks that
meta_verify_monitors_config() doesn't do yet, so let's also call
meta_verify_logical_monitor_config() when verifying the whole config.

We'll rely on this being part of meta_verify_monitors_config() soon, because we'll
stop calling meta_verify_logical_monitor_config() from the config parser.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Jonas Dreßler
72b324d686 monitor-config-manager: Verify the whole monitor layout is connected
We forgot to check whether multiple groups of monitors are actually
all connected with each other, so fix that.

[jadahl: Rewrote algorithm to detect split groups]
[jadahl: Added test case]

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3596>
2024-08-14 13:07:47 +00:00
Daniel van Vugt
c436e7cb17 kms/impl-device: Add/remove deadline timer as required
On a hybrid machine with i915 primary and nvidia-drm (470) secondary,
`meta_render_device_egl_stream_initable_init` calls
`meta_kms_inhibit_kernel_thread` to change from the default 'kernel'
thread type to 'user'. And soon after that it would
`meta_render_device_egl_stream_finalize` because I'm not actually
using that GPU, and calls `meta_kms_uninhibit_kernel_thread`.

So during startup Mutter would default to a realtime kernel thread,
switch to a user thread (which doesn't support realtime), and then
switch back to a realtime kernel thread.

In the middle of all that, while the thread type was 'user' and
realtime disabled, something was invoking `ensure_crtc_frame` which
created a `CrtcFrame` without a deadline timer. Soon after that the
thread type changed back to 'kernel' with deadline timers expected, but
our existing `CrtcFrame` has no deadline timer associated with it. And
so it would never fire, causing the cursor to freeze whenever the primary
plane isn't changing. And the problem was permanent, not just the first
frame because each `CrtcFrame` gets repeatedly reused (maybe shouldn't
be called a "Frame"?).

Now we adapt to switching between kernel and user thread types by adding
and removing the deadline timer as required.

Close: https://gitlab.gnome.org/GNOME/mutter/-/issues/3464
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3950>
2024-08-14 15:50:48 +08:00