Commit Graph

632 Commits

Author SHA1 Message Date
Simon Ser 2b0a1aeed5 output: take a wlr_buffer in set_cursor
Instead of passing a wlr_texture to the backend, directly pass a
wlr_buffer. Use get_cursor_size and get_cursor_formats to create
a wlr_buffer that can be used as a cursor.

We don't want to pass a wlr_texture because we want to remove as
many rendering bits from the backend as possible.
2021-06-02 11:08:52 +02:00
Simon Ser 01e0f51fad backend/drm: introduce drm_plane_pick_render_format
This is a new helper function to pick a render format suitable for
a plane.

The next commit will use it to initialize the cursor multi-GPU
surface.
2021-06-02 11:08:52 +02:00
Simon Ser e06ea4e84a backend/drm: remove format arg from drm_plane_init_surface
This was always set to ARGB8888.
2021-06-02 11:08:52 +02:00
Simon Ser 9e9be83a58 backend/drm: implement get_cursor_formats and get_cursor_size 2021-06-02 11:08:52 +02:00
Simon Ser 7ec5bf6b10 backend: introduce wlr_backend_finish
This new functions cleans up the common backend state. While this
currently only emits the destroy signal, this will also clean up
the renderer and allocator in upcoming patches.
2021-05-21 22:13:54 +02:00
Simon Ser 9ca743f9fd backend/drm: use wlr_texture_from_buffer 2021-05-17 16:22:43 +02:00
Kenny Levinsen 2603a5dee7 backend/drm: Do not require mode commit on enable
If a mode is not provided, use the current mode intead.

Closes: https://github.com/swaywm/wlroots/issues/2904
2021-04-30 21:33:28 +02:00
Simon Ser a1e8a639b3 backend/drm: introduce drm_connector_commit_state
Backend-initiated mode changes can use this function instead of
going through drm_connector_set_mode. drm_connector_set_mode becomes
a mere drm_connector_commit_state helper.
2021-04-29 19:51:57 +02:00
Simon Ser e543e26206 backend/drm: take a wlr_drm_connector instead of a wlr_output
No need to take a generic wlr_output, we already know the output
comes from the DRM backend at that point.
2021-04-29 19:51:57 +02:00
Simon Ser e06c62af77 backend/drm: take output state arg in drm_connector_commit_buffer
This will allow a whole state to be applied at once, instead of
individually applying the buffer and the mode.
2021-04-29 19:51:57 +02:00
Simon Ser 218955ce95 backend/drm: remove mode arg from drm_connector_set_mode
All of the information is in wlr_output_state.
2021-04-29 19:51:57 +02:00
Simon Ser 7aba881c47 backend/drm: remove mode arg from drm_connector_init_renderer
This is now unused.
2021-04-29 19:51:57 +02:00
Simon Ser 31082a0554 backend/drm: remove wlr_drm_crtc_state.mode
Replace it with drm_connector_state_mode, which computes the mode
from the wlr_output_state to be applied.
2021-04-29 19:51:57 +02:00
Simon Ser dfea0ff31d backend/drm: remove wlr_drm_crtc_state.active
Replace it with drm_connector_state_active, which figures out
whether the connector is active depending on the wlr_output_state
to be applied.
2021-04-29 19:51:57 +02:00
Simon Ser 485ecc11a6 backend/drm: remove wlr_drm_crtc.pending_modeset
Replace it with a new drm_connector_state_is_modeset function that
decides whether a modeset is necessary directly from the
wlr_output_state which is going to be applied.
2021-04-29 19:51:57 +02:00
Simon Ser c9c2d7539c backend/drm: fill scratch wlr_output_state for set_mode
Populate the wlr_output_state when setting a mode. This will allow
drm_connector_set_mode to stop relying on ephemeral fields in
wlr_drm_crtc. Also drm_connector_set_mode will be able to apply
both a new buffer and a new mode atomically.
2021-04-29 19:51:57 +02:00
Simon Ser 1a9701cd7c backend/drm: take wlr_output_state as arg in commit callers
Instead of relying on wlr_output.pending to be empty when performing
backend-initiated CRTC commits, use a zero wlr_output_state.
2021-04-29 19:51:57 +02:00
Simon Ser 8f90d7f8f5 backend/drm: take wlr_output_state as arg in crtc_commit
Stop assuming that the state to be applied is in output->pending in
crtc_commit. This will allow us to remove ephemeral fields in
wlr_drm_crtc, which are used scratch fields to stash temporary
per-commit data.
2021-04-29 19:51:57 +02:00
Simon Ser e7f68ba081 backend/drm: fix allocator DRM FD on multi-GPU setups
On multi-GPU setups, there is a primary DRM backend and secondary
DRM backends. wlr_backend_get_drm_fd will always return the parent
DRM FD even on secondary backends, so that users always use the
primary device for rendering.

However, for our internal rendering we want to use the secondary
device. Use allocator_autocreate_with_drm_fd to make sure the
allocator will create buffers on the secondary device.

We do something similar to ensure our internal rendering will
happen on the secondary device with renderer_autocreate_with_drm_fd.

Fixes: cc1b66364c ("backend: use wlr_allocator_autocreate")
2021-04-29 15:58:56 +02:00
Simon Ser 619a975025 render: remove wlr_ prefix from wlr_renderer_autocreate_with_drm_fd
This function is only required because the DRM backend still needs
to perform multi-GPU magic under-the-hood. Remove the wlr_ prefix
to make it clear it's not a candidate for being made public.
2021-04-29 09:46:34 +02:00
Simon Ser 6bf2406dbf backend/drm: reword wlr_renderer failure message
Remove the assumption about EGL.
2021-04-29 09:38:10 +02:00
Simon Zeni cc1b66364c backend: use wlr_allocator_autocreate 2021-04-28 20:55:57 +02:00
Simon Zeni 144189674e backend: introduce backend_get_buffer_caps 2021-04-28 20:55:57 +02:00
Simon Zeni c75aa71816 render/gbm_allocator: make wlr_gbm_allocator_create return a wlr_allocator 2021-04-28 20:55:57 +02:00
Simon Ser 0411dc0663 Revert "backend/drm: fail instead of stripping a modifier"
This reverts commit f9f90b4173.

gbm_bo_get_modifier may return a modifier in these cases:

- The kernel doesn't support modifiers but Mesa does
- WLR_DRM_NO_MODIFIERS=1 is set

However, in both of these cases, the gbm_bo has been allocated
without modifiers.

There is already a check in drm_fb_create for modifiers:
wlr_drm_format_set_has will make sure buffers with an explicit
modifier will be rejected if the DRM backend doesn't support them.
So no need for an additional check in get_fb_for_bo.

Closes: https://github.com/swaywm/wlroots/issues/2896
2021-04-27 15:38:10 +02:00
Simon Ser 4839664a92 backend/drm: carry on when disabling a CRTC fails
On GPU unplug, disabling a CRTC can fail with EPERM.

References: https://github.com/swaywm/wlroots/pull/2575#issuecomment-761771264
2021-04-27 09:11:44 +02:00
Simon Ser 9b0e0970f9 backend/drm: destroy backend on udev remove event
Any use of the DRM FD after the remove event results in a "Permission
denied" error.
2021-04-27 09:11:44 +02:00
Simon Ser c49ea9ef4f backend/drm: destroy when parent is destroyed 2021-04-27 09:11:44 +02:00
Simon Ser e804de923d backend/drm: clarify error message on drmModeAddFB fallback
The previous code would always print "falling back to legacy method",
even if the format wasn't ARGB8888.

Drop get_fb_for_bo_legacy, since the code can just be inlined without
hurting readability.

Ideally we should only fallback to drmModeAddFB if the error code
indicates the BE failure, but the original PR [1] doesn't say what
error code is returned by the kernel.

[1]: https://github.com/swaywm/wlroots/pull/2569
2021-04-26 23:12:53 +02:00
Simon Ser f9f90b4173 backend/drm: fail instead of stripping a modifier
We shouldn't strip a modifiers from buffers, because the will make
the kernel re-interpret the data as LINEAR on most drivers,
resulting in an incorrect output on screen.
2021-04-26 23:12:53 +02:00
Simon Zeni 84dea55b20 render: rename get_dmabuf_render_formats into get_render_formats 2021-04-15 17:10:06 +02:00
Simon Ser 053ebe7c27 backend/drm: terminate display on drmHandleEvent failure 2021-04-14 23:56:56 +02:00
Stephan Hilb 9f012cac2f drm: check for PRIME support
PRIME support for buffer sharing has become mandatory since the renderer
rewrite. Make sure we check for the appropriate capabilities in backend,
allocator and renderer.

See also #2819.
2021-04-10 10:49:55 +02:00
Simon Ser 8ccb4bbb5f backend/drm: stop testing for buffer in drm_connector_commit_buffer
We now do the test in drm_connector_test, called from
drm_connector_commit.
2021-04-06 20:35:15 +02:00
Simon Ser d0bf750916 backend/drm: use atomic test-only commits for direct scan-out
This allows callers to use wlr_output_test to figure out whether a
buffer can be scanned out prior to committing the output.
2021-04-06 20:35:15 +02:00
Simon Ser 7efc2d05b7 backend/drm: downgrade test-only commit failure log level
Let's not clutter the logs with error messages when a test-only
atomic commit fails.
2021-04-06 20:35:15 +02:00
Simon Ser 5088e25eaf backend/drm: don't set NONBLOCK with TEST_ONLY
The kernel ignores NONBLOCK when TEST_ONLY is set. Let's just not
set it, to make it clear it's unused.
2021-04-06 20:35:15 +02:00
Simon Ser 6bfbf35618 backend/drm: reject DMA-BUFs with flags
We cannot scan-out DMA-BUFs with any flag right now.
2021-04-06 15:02:57 +02:00
Simon Ser 1ec97bdf4f backend/drm: improve logs in drm_fb_create
Downgrade errors to DEBUG level, because drm_fb_create is used in
test_buffer, so errors aren't always fatal. Add ERROR logs at call
sites where a failure is fatal, to make it clear something wrong
happened.
2021-04-06 14:57:59 +02:00
Simon Ser 511e42be5e backend/drm: try to import buffer when testing it
If the import to KMS succeeds, we have a better chance to be able to
scan it out.

Importing is also necessary for test-only commits, which we want to
add in the future.
2021-04-06 14:57:59 +02:00
Simon Ser 7709a965e5 backend/drm: use format table in test_buffer
Instead of an ad-hoc strip_alpha_channel function, use the
centralized format table to get an opaque substitute.
2021-03-31 17:29:31 +02:00
Simon Zeni c8b3536b01 backend/drm: use pixel format table in renderer 2021-03-25 10:55:54 +01:00
Simon Ser c740fccc9d Fix buffer blit matrices
There was a missing wlr_matrix_scale call, so we ended up with black
frames.

Closes: https://github.com/swaywm/wlroots/issues/2780
2021-03-16 17:57:51 +01:00
Simon Ser 44fa2c4b49 output: fix transform matrix for 90/270 rotations
We need to adjust the second translation depending on the transform
we applied.

Fixes: 9601a2abf0 ("output: improve transform matrix calculation"
Closes: https://github.com/swaywm/wlroots/issues/2774
2021-03-11 22:52:38 +01:00
Simon Zeni 9601a2abf0 output: improve transform matrix calculation
Compute only the transform matrix in the output. The projection matrix
will be calculated inside the gles2 renderer when we start rendering.

The goal is to help the pixman rendering process.
2021-03-10 15:33:36 +01:00
Simon Ser a02da8e6f6 backend/drm: add new writeback and SPI connector types
We already depend on libdrm 2.4.95, which is the first to have the
writeback connector type.
2021-03-05 17:59:26 +01:00
Simon Ser f3758d1d0a backend: add error messages in attach_render impls 2021-02-18 22:14:19 +01:00
Manuel Stoeckl a290d7a78d Make implementation function lists static const
This requires a change to the type of `struct wlr_tablet` and
`wlr_tablet_init` signature, both of which are part of the unstable API.
2021-02-05 10:04:20 +01:00
Simon Ser 73ffab70b0 backend/drm: don't blit in drm_fb_import
Instead blit in drm_plane_lock_surface. This makes drm_fb_import simpler
and better fits its name.
2021-01-24 18:33:56 +01:00
Simon Ser 4af85f4c19 backend/drm: simplify drm_fb_lock_surface
Make it take a plane instead, and rename to drm_plane_lock_surface.
2021-01-24 18:22:03 +01:00
Simon Ser 04d89a8bc5
backend/drm: fix modifiers for cursor plane buffers
In 93cd3a79b2 ("backend/drm: stop using GBM flags"), we stopped
using the GBM_BO_USE_LINEAR flag in favor of a modifier list set
to { DRM_FORMAT_MOD_LINEAR }. However, the last argument of
drm_plane_init_surface disables modifiers -- so the buffer will just
get allocated with an implicit modifier, without necessarily being
LINEAR.

To fix this, allow modifiers when allocating the cursor buffers.
wlr_drm_plane.formats should already have the necessary LINEAR
restrictions.

Fixes: 93cd3a79b2 ("backend/drm: stop using GBM flags")
2021-01-17 22:25:18 +01:00
Simon Ser f17b0f975d backend/drm: add wlr_drm_connector_get_id
This allows a compositor to get a KMS connector object ID from a
wlr_output. The compositor can then query more information about
the connector via libdrm.

This gives more freedom to compositors and allows them to read
KMS properties that wlroots doesn't know about. For instance,
they could read the EDID or the suggested_{X,Y} properties and
change their output configuration based on that.
2021-01-17 12:42:32 +01:00
Simon Ser cb6f584496 backend/drm: add support for the subconnector property
The subconnector property indicates the connector sub-type. This is
useful because that usually indicates what kind of connector the user
has plugged in to their monitor, e.g. a DisplayPort-to-DVI cable will
indicate a DVI subconnector. Also some laptops have non-DP connectors
that are internally linked to a DP port on the GPU.

Set the output description accordingly.

See https://drmdb.emersion.fr/properties/3233857728/subconnector
2021-01-17 12:42:25 +01:00
Simon Ser 9e98f497af backend/drm: use local DRM FD for wlr_rend
The new wlr_renderer_autocreate API is great for compositors, however
it causes some issues with DRM multi-GPU support.

A DRM child backend wants the compositor to use the parent GPU, so it
exposes the parent's DRM FD in get_drm_fd. However, in order to be able
to perform multi-GPU buffer copies, the child DRM backend still needs to
create a local renderer.

Use the new private wlr_renderer_autocreate_with_drm_fd function to
avoid creating a renderer for the parent GPU.

Fixes: e128e6c08d ("render: drop egl parameters from wlr_renderer_autocreate")
2021-01-16 22:52:26 +01:00
Simon Ser afdf4dc890 render/gles2: make EGL context current in bind_buffer
Instead of requiring callers to manually make the EGL context current
before binding a buffer and unsetting it after unbinding a buffer, do
it inside wlr_renderer_bind_buffer.

This hides renderer-specific implementation details inside the
wlr_renderer interface. Non-GLES2 renderers may not use EGL.
This removes all EGL dependencies from the backends.

References: https://github.com/swaywm/wlroots/issues/2618
References: https://github.com/swaywm/wlroots/pull/2615#issuecomment-756687006
2021-01-16 09:06:17 +01:00
Simon Zeni 08a4c62aac render: remove egl include from wlr_renderer 2021-01-16 08:57:42 +01:00
Simon Zeni e128e6c08d render: drop egl parameters from wlr_renderer_autocreate 2021-01-16 08:57:42 +01:00
Simon Ser b7c95d483a backend/drm: implement get_drm_fd 2021-01-16 08:57:42 +01:00
Simon Ser a6a0568316
backend: remove unnecessary GLES2 includes 2021-01-14 12:36:49 +01:00
Simon Ser dc61f471da
backend/drm: remove unnecessary wlr_drm_fb.wlr_buf check
We don't need this check, wlr_buf is guaranteed not to be NULL.
2021-01-13 19:01:02 +01:00
Simon Ser 5d054258af
backend/drm: fix segfault in page_flip_handler
Since 5b1b43c68c ("backend/drm: make wlr_drm_plane.{pending,queued,current}_fb
pointers"), current_fb can be NULL if there's no buffer. If current_fb
is not NULL, current_fb->wlr_buf is guaranteed to not be NULL.

Closes: https://github.com/swaywm/wlroots/issues/2634
2021-01-12 11:41:45 +01:00
Simon Ser 3f7e0cf5f0 render/egl: remove surface and buffer age args from make_current
These aren't used anymore.
2021-01-12 11:31:04 +01:00
Simon Ser c94728b53a
backend/drm: stop using surface size for BO
Stop using wlr_drm_surface.{width,height} to figure out the size of a
gbm_bo. In the future we'll stop using wlr_drm_plane.surf, so these will
be zero. Instead, rely on gbm_bo_get_{width,height}.
2021-01-10 11:24:44 +01:00
Simon Ser d9bbc416a6 backend/drm: re-use FBs
Instead of importing buffers to GBM and KMS at each frame, cache them
and re-use them while the wlr_buffer is alive.

This is the same as [1] and [2] but for the DRM backend.

[1]: https://github.com/swaywm/wlroots/pull/2538
[2]: https://github.com/swaywm/wlroots/pull/2539
2021-01-10 11:24:35 +01:00
Simon Ser 91cb0fc443 backend/drm: only keep track of local buffer
Stop keeping track of buffers on the parent GPU when multi-GPU is used.

This removes support for export_dmabuf on secondary GPUs, but renderer
v6 will bring this back by managing the swapchains in wlr_output instead
of the backends.
2021-01-10 11:24:35 +01:00
Simon Ser 5bd86b94f9 backend/drm: add wlr_drm_buf.local_wlr_buf 2021-01-10 11:24:35 +01:00
Simon Ser cd64610c66 backend/drm: introduce drm_fb_create 2021-01-10 11:24:35 +01:00
Simon Ser 5b1b43c68c backend/drm: make wlr_drm_plane.{pending,queued,current}_fb pointers
This will be useful once we start re-using wlr_drm_fb.
2021-01-10 11:24:35 +01:00
Simon Zeni 9192c0480a remove unnecessary egl includes 2021-01-07 17:11:22 +01:00
Simon Zeni b899a412e3 backend: remove wlr_egl from all backends 2021-01-07 17:11:22 +01:00
Simon Ser 5773794baf
backend/drm: don't log errno on plane_get_next_fb failure
errno isn't guaranteed to be set after a plane_get_next_fb failure, so
we were printing garbage.
2021-01-07 16:53:20 +01:00
Simon Ser 07d75c99db render: remove EGL config and visual from wlr_renderer_autocreate
This isn't used anymore by any backend.

Some examples still provide an EGL config to wlr_egl_init, so we can't
drop it yet there.
2021-01-06 12:05:51 +01:00
Simon Ser adfb7cd35a backend/drm: stash pending page-flip CRTC
wlr_drm_connector.crtc may be updated by the DRM backend while a
page-flip is pending. In this case, the page-flip handler won't be able
to find the right wlr_drm_connector from the CRTC ID.

Save the CRTC when performing a page-flip to ensure we always find the
right connector when we get the event.
2021-01-03 19:35:02 +01:00
Simon Ser 576ff57db0 backend/drm: ignore hotplug events while inactive
When the session is inactive, we can't change the KMS state. Ignore
hotplug events so that compositors don't try to perform a modeset when
a connector is plugged in. We already re-scan connectors when the
session becomes active.

To test, run a wlroots compositor on VT 1, switch to VT 2, unplug a
connector, re-plug it, switch back to VT 1. Without this patch the
screen is black on VT 1.

References: https://github.com/swaywm/wlroots/issues/2370
2021-01-03 19:34:54 +01:00
Simon Ser 4b03bdc3ab Remove wlr_create_renderer_func_t
This callback allowed compositors to customize the EGL config used by
the renderer. However with renderer v6 EGL configs aren't used anymore.
Instead, buffers are allocated via GBM and GL FBOs are rendered to. So
customizing the EGL config is a no-op.
2020-12-30 17:09:40 +01:00
Simon Ser bec1e6b149 backend/drm: remove special linear case for cursor plane
We now properly mark the cursor plane's formats as linear-only, and we
now have a version of wlr_drm_format_intersect that handles the case of
linear-only formats and implicit modifiers.

We can remove the special drm_plane_init_surface flag we had for cursor
planes. This also allows us to use a non-linear layout for cursor planes
on drivers that support it.

Tested on amdgpu GFX9.
2020-12-30 11:17:43 +01:00
Simon Ser 92a0fc0435 backend/drm: extract linear format creation into function
Simplifies error handling.
2020-12-30 11:17:43 +01:00
Simon Ser 7ea0e9f277 backend/drm: force LINEAR for cursor plane formats
If the kernel driver doesn't support modifiers, it still expects cursor
FBs to have a LINEAR layout. See [1] for expectations for framebuffers
attached to the cursor plane.

[1]: https://patchwork.freedesktop.org/patch/408512/
2020-12-30 11:17:43 +01:00
Ariadne Conill 23b6f3e3f5 drm: add fallback drmModeAddFB for drivers which do not support drmModeAddFB2
This makes wlroots able to run on some big-endian machines like G4 and
G5 systems with ATI Radeon 7500 AGP graphics.
2020-12-28 14:15:04 +01:00
Simon Ser c5f239f411
backend/drm: make listener names more idiomatic
Use the "<object>_<event>" notation for listeners, use
"handle_<listener>" for handlers.
2020-12-25 14:45:00 +01:00
Simon Ser b9460ab724
Stop using wlr_texture_get_size
Just use wlr_texture.{width,height} directly.
2020-12-25 12:21:29 +01:00
Simon Ser 17dd4c9e9a
backend/drm: use connector log helpers in atomic backend 2020-12-24 17:55:45 +01:00
Simon Ser a7a230ebef
backend/drm: make drmModePlane arg in add_plane const
Make it clearer it'll be free'd after add_plane returns.
2020-12-24 12:34:13 +01:00
Simon Ser c011a0e2ed
backend/drm: add special case for cursor in add_plane
The code calling add_plane now makes sure not to add a cursor plane to a
CRTC which already has one.
2020-12-24 12:31:20 +01:00
Simon Ser 5548406667
backend/drm: log whether ADDFB2 modifiers are supported 2020-12-24 12:29:30 +01:00
Simon Ser 64a2ca4dba
backend/drm: don't retry page-flip when modifiers are unsupported
Parse WLR_DRM_NO_MODIFIERS at startup. Don't parse IN_FORMATS when
WLR_DRM_NO_MODIFIERS is set, so that the legacy behaviour is better
reproduced.

When modifiers aren't supported, try the initial page-flip once only.
2020-12-23 19:49:27 +01:00
Simon Ser 54ec17ff64
backend/drm: use plural form for possible_crtcs
Make it clearer that this is a bitmask of CRTC indices.
2020-12-23 12:14:36 +01:00
Simon Ser 2de400a541
backend/drm: assert connector state after wlr_output_destroy 2020-12-22 19:53:33 +01:00
Simon Ser 85cf4b235d
backend/drm: destroy DRM connectors that disappear
This was lost during the refactoring. We were previously calling
wlr_output_destroy, which destroyed the connector as well.

Fixes: 248c7787c7 ("backend/drm: refactor wlr_output destruction")
2020-12-22 19:38:29 +01:00
Simon Ser ad4dae0844 backend/drm: error on size mismatch in drm_surface_blit 2020-12-22 15:53:10 +01:00
Simon Ser d3bcd63a40 backend/drm: remove drm_fb_acquire
Instead, import the buffer into GBM and KMS in drm_fb_import. Also move
the multi-GPU copy there if necessary.
2020-12-22 15:53:10 +01:00
Simon Ser 5ee8b12dc3 backend/drm: make drm_fb_acquire return a FB ID 2020-12-22 15:53:10 +01:00
Simon Ser d09abe86c1 backend/drm: drop export_drm_bo
Not used anymore.
2020-12-22 15:53:10 +01:00
Simon Ser dabd2e7207 backend/drm: grab DMA-BUF from wlr_buffer instead of gbm_bo
Get the DMA-BUF directly out of the wlr_buffer instead of relying on the
gbm_bo. This eliminates a roundtrip through GBM.
2020-12-22 15:53:10 +01:00
Simon Ser 83925f04c3 backend/drm: don't save texture in gbm_bo user data
The GBM BO is destroyed when released anyways.
2020-12-22 15:53:10 +01:00
Ronan Pigott 917ecca58e backend/drm: avoid gcc stringop-truncation warning 2020-12-18 22:19:16 +01:00
Simon Ser 352fdd1bb0
backend/drm: remove unused wlr_drm_plane.drm_format 2020-12-18 11:44:50 +01:00
Simon Ser 248c7787c7 backend/drm: refactor wlr_output destruction
Instead of hand-rolling our own manual wlr_output cleanup function, rely
on wlr_output_destroy to remove an output from the compositor's state.
2020-12-18 10:48:44 +01:00
Simon Ser 019ffe8a5b backend/drm: introduce wlr_drm_connector.name
The DRM backend is a little special when it comes to wlr_outputs: the
wlr_drm_connectors are long-lived and are created even when no screen is
connected.

A wlr_drm_connector only advertises a wlr_output to the compositor when
a screen is connected. As such, most of wlr_output's state is invalid
when the connector is disconnected.

We want to stop using wlr_output state on disconnected connectors.
Introduce wlr_drm_connector.name which is always valid regardless of the
connector status to avoid reading wlr_output.name when disconnected.
2020-12-18 10:48:44 +01:00
Simon Ser c89b131f29 backend/drm: introduce wlr_drm_conn_log
Simplify and unify connector-specific logging with a new
wlr_drm_conn_log macro. This makes it easier to understand which
connector a failure is about, without having to explicitly integrate the
connector name in each log message.
2020-12-18 10:48:44 +01:00