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Without outputs, all points are equally invalid anyway, but for e.g.
cursor warping it makes more sense to preserve the original position.
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Fail with a clearer error when the requested size is too large.
Without this, we allocate a buffer with a size smaller than what
was requested.
References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3975
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When the user switches away from the VT where wlroots is running,
the new DRM master may mutate the KMS state in an arbitrary manner.
For instance, let's say wlroots uses the following connector/CRTC
mapping:
- CRTC 42 drives connector DP-1
- CRTC 43 drives connector DP-2
Then the new DRM master may swap the mapping like so:
- CRTC 42 drives connector DP-2
- CRTC 43 drives connector DP-1
wlroots needs to restore its own state when the user switches back.
Some state is attached to wlr_drm_crtc (e.g. current FB), so reading
back and adopting the CRTC/connector mapping left by the previous DRM
master would be complicated (this was the source of other bugs in the
past, see [1]).
With the previous logic, wlroots merely tries to restore the state
of each connector one after the other. This fails in the scenario
described above: the kernel refuses to use CRTC 42 for DP-1, because
that CRTC is already in-use for DP-2.
Unfortunately with the legacy uAPI it's not possible to restore the
state in one go. We need to support both legacy and atomic uAPIs, so
let's fix the bug for the legacy uAPI first, and then improve the
situation for the atomic uAPI as a second step [2].
We need to disable the CRTCs we're going to switch the connectors for.
This sounds complicated, so let's just disable all CRTCs to simplify.
This causes a black screen because of the on/off modesets, but makes
VT switch much more reliable, so I'll take it.
[1]: https://gitlab.freedesktop.org/wlroots/wlroots/-/commit/c6d8a11d2c438d514473b1cbe20e5550e7227472
[2]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3794
Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3342
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Fixes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3563
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check_parent was unecessary: it only served to skip a trivial check
and added more complexity than it was worth.
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Instead use the scene node position.
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This was changed to a bitfield by mistake.
References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3484#note_1697926
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We lock the buffer there, so we need to initialize the n_busy
count to 1 as well.
Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3556
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The invalid_destroy and invalid_unlock protocol errors aren't currently
sent by wlroots and instead left up to the compositor. However, we can
handle these as well without much additional complexity.
This also adds a missing wl_resource_destroy() call if the lock is inert
in lock_handle_unlock_and_destroy().
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Fixes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3554
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xwayland_surface_associate() already does this.
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Make sure xwayland_surface_associate() is not called twice in a
row without a xwayland_surface_dissociate() call in-between.
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If a window is unmapped too quickly, we might receive UnmapNotify before
we get the corresponding wl_surface, which will later lead to
associating the same window twice. To fix this, move the NULL surface
check to xwayland_surface_dissociate(), which makes resetting the
unpaired link and the wl_surface object ID unconditional.
Fixes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3552
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We already do it for get_drm_plane_props().
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We only need it for one thing: gamma size. Moreover, some bits in
the drmModeCrtc will become out-of-date, for instance the current
mode, so let's avoid caching the whole struct and only keep what
we know won't change.
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connect_drm_connector() may be called long after create_drm_connector().
During that time the DRM mode might have changed. Avoid working with
stale information.
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If the kernel adds new enum entries for subpixel, don't read past
the end of the subpixel_map array.
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match_obj() might return a configuration where the CRTC for an
enabled connector is switched to another one.
We don't support this correctly: the wlr_output common code would
need to query again the supported formats, re-allocate the
swapchain, etc.
What's more, the kernel doesn't even support this [1]: it
requires planes to be disabled to change their CRTC, it rejects
commits directly switching the CRTC used by a plane.
[1]: https://cgit.freedesktop.org/drm/drm-misc/tree/drivers/gpu/drm/drm_atomic.c?h=6e90293618ed476d6b11f82ce724efbb9e9a071b#n697
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This list contains wlr_drm_connector entries, and there is no
guarantee that the wlr_output fields are initialized.
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Ensure we unlock any pending cursor FB when disabling a connector.
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If the commit fails, then our local state becomes out-of-sync with
the kernel's. Additionally, when disabling a connector without going
through dealloc_crtc(), conn->crtc would still be set.
Fix this by updating conn->crtc in drm_connector_commit_state().
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The raw enum value wasn't informative enough. It's not trivial to
tell whether 0 means connected or disconnected.
Drop the status from the state after realloc, since the exact same
information is printed right above.
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Helper to stringify a connector status.
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Some formats like YUV are only supported by Mesa for sampling, not
for rendering. However we always unconditionally added the INVALID
modifier to the list of render formats.
Check whether all modifiers are external-only, in that case, don't
add INVALID to the list of render formats.
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EGL_EXT_image_dma_buf_import_modifiers [1] uses EGLint to carry
formats. We were casting it to int (which may not be the same
width) and uint32_t (which may change the value).
Instead, use EGLint everywhere.
[1]: https://registry.khronos.org/EGL/extensions/EXT/EGL_EXT_image_dma_buf_import_modifiers.txt
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The logic isn't correct.
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86fc2199f85a ("build: unify naming for HAVE_* defines") has
switched over all other feature defines from HAS_* to HAVE_*, but
missed this one.
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The dep allows us to check dep variables to discover supported
features. With the binary we assume none of the features are
supported. If a user forgets to install the pkg-config file (e.g.
because it's in a split package) we end up incorrectly disabling
all features. Instead let's error out.
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Instead of having a pending_fb field on the struct wlr_drm_plane,
move it to struct wlr_drm_connector_state. That way, there's no
risk having a stale pending FB around: the state doesn't survive
across tests and commits.
The cursor is a special case because it's disconnected from the
atomic state: the wlr_backend_impl.set_cursor hook sets the cursor
for the next commit. Move the field to
wlr_drm_connector.cursor_pending_fb.
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We'll move the pending primary FB into the connector state in the
next commit, dropping wlr_drm_plane.pending_fb in the process.
Introduce a dedicated field for the cursor, which has to be managed
in a special way due to our set_cursor API.
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plane_get_next_fb() will go away in subsequent commits. Primary and
cursor will differ with the new logic. Let's prepare for this.
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We only have one error code-path, no need for goto here.
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No need to manually call drm_connector_state_init() here, we can
just let drm_connector_commit_state() handle it.
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