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2023-02-27backend: move #ifdefs to nested functionsSimon Ser
Instead of littering #ifdefs everywhere, move them to the dedicated attempt_XXX_backend() functions. This makes the logic in wlr_backend_autocreate() more readable, and provides better error messages when the X11/Wayland backends are disabled at compile-time, or when WLR_BACKENDS contains a backend disabled at compile-time.
2023-02-27backend: make wlr_backend_autocreate() fail when DRM is missingSimon Ser
When we change the required dependencies for the DRM backend, Meson might auto-disable the backend for users missing the new requirements. This results in confused users [1] because they don't notice the "drm-backend: NO" line burried in the Meson logs, and then get a black screen when starting the compositor. Update wlr_backend_autocreate() to refuse to create a backend with only libinput (without DRM). Users really wanting to start their compositor with a libinput backend and without a DRM backend can manually set WLR_BACKENDS. [1]: https://github.com/swaywm/sway/issues/7457
2023-02-21backend: disable DRM backend monitor when WLR_DRM_DEVICES is usedSimon Ser
WLR_DRM_DEVICES specifies a static list of DRM devices to open at startup. Do not create DRM backends for hotplugged DRM devices when it's set. Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3595
2023-02-21backend: avoid adding NULL backend in attempt_backend_by_name()Simon Ser
2023-02-21backend: create DRM backend monitor when WLR_BACKENDS is usedSimon Ser
2022-11-25backend/session: make optionalSimon Ser
Some compositors are not interested in wlr_session, for instance nested compositors. Disabling wlr_session removes the udev dependency.
2022-11-25backend: use time helpers to implement timeoutsSimon Ser
Instead of hand-rolling get_current_time_msec(), let's just re-use the helper we already have in "util/time.h".
2022-11-25backend: error out when missing DRM and libinput in wlr_backend_autocreate()Simon Ser
Instead of returning an empty multi backend, fail with a clear error when both the DRM and libinput backends are disabled.
2022-11-15backend: rename backend to multi in wlr_backend_autocreate()Simon Ser
This function deals with multiple kinds of backends. Make it more obvious that this variable holds the multi backend which is returned to the user.
2022-11-15backend: drop wlr_backend_get_session()Simon Ser
This no longer has purpose.
2022-11-15backend: return wlr_session in wlr_backend_autocreate() callSimon Ser
Up until now, wlr_backend_autocreate() created the wlr_session and then stuffed it into struct wlr_multi_backend so that compositors can grab it later. This is an abuse of wlr_multi_backend and the wlr_backend API: wlr_backend_get_session() and wlr_multi_backend.session only exist to accomodate the needs of wlr_backend_autocreate(). What's more, the DRM and libinput backends don't implement wlr_backend_impl.get_session. Instead, return the struct wlr_session to the compositor in the wlr_backend_autocreate() call. wlr_backend_get_session() will be removed in the next commit.
2022-08-22Use env helpersAlexander Orzechowski
2022-08-18Use wl_signal_emit_mutableAlexander Orzechowski
2022-04-28Zero-initialize structs in init functionsSimon Ser
Ensures there is no field left to its previous undefined value after calling an init function.
2021-12-20backend: error out in autocreate without libinput supportSimon Ser
The libinput backend is now optional. However, this means that a user building wlroots without the correct libinput dependencies will end up with a compositor which doesn't respond to input events. wlr_backend_autocreate is supposed to return a sensible setup, so in this case let's just error out and explain what happened. Users can suppress the check by setting WLR_LIBINPUT_NO_DEVICES=1 (already used to suppress the zero input device case inside the libinput backend). Compositors which really want to create a bare DRM backend can easily create it manually instead of using wlr_backend_autocreate.
2021-12-13backend/drm: add wlr_drm_backend_monitorChris Chamberlain
This helper is responsible for listening for new DRM devices and create new child DRM backends as necessary.
2021-12-13backend: fix return value of attempt_drm_backendChris Chamberlain
The multi backend was returned instead of the primary DRM backend.
2021-11-25backend: remove noop backendSimon Zeni
2021-11-19backend: fix attempt_backend_by_name multi backend self insertionSimon Zeni
2021-11-18backend: remove wlr_backend_get_rendererSimon Zeni
2021-11-18backend: remove backend_get_allocatorSimon Zeni
2021-11-18backend: remove backend ensure renderer and allocator checkSimon Zeni
2021-10-27backend.c: do not try to explicitly clean up the libinput backendMarkusVolk
Since libinput is an optional dependency the libinput backend is possibly undeclared. wlr_backend_destroy(backend) below will clean up the child libinput backend if any.
2021-10-18Add error handling to backend creationAnthony Super
This commit adds two error-handling cases to the function attempt_dmr_backend. Specifically: - In the case where the number of found GPUs is zero, we now print a log message indicating this and return a NULL pointer - In the case where we could not successfully create a backend on any GPU, we now log a message indicating this and return a NULL pointer This allows us to provide more descriptive error messages, as well as avoid a SEGFAULT (the function `ensure_primary_backend_renderer_and_allocator` dereferences the pointer given, which could be NULL until this patch) when these cases arise.
2021-10-05backend: drop unconditional and unused <libinput.h>Jan Beich
After 70fb21c35ba4 made libinput optional the include prevents building without libinput package installed. backend/backend.c:4:10: fatal error: 'libinput.h' file not found #include <libinput.h> ^~~~~~~~~~~~
2021-09-30backend: create renderer and allocator in wlr_backend_autocreateSimon Ser
Instead of ensuring the renderer and allocator are initialized in each backend, do it in wlr_backend_autocreate. This allows compositors to create backends without any renderer/allocator if they side-step wlr_backend_autocreate. Since the wlr_backend_get_renderer and backend_get_allocator end up calling wlr_renderer_autocreate and wlr_allocator_autocreate, it sounds like a good idea to centralize all of the opimionated bits in one place.
2021-09-07backend: wait for session to become activemuradm
2021-08-25Move allocator stuff into new directorySimon Ser
Add render/allocator/ and include/render/allocator/ to hold everything allocator-related.
2021-07-28backend/drm: drop get_renderer implementationSimon Ser
We can now just rely on the common code for this.
2021-07-22backend: make DRM and libinput backends optionalayaka
Co-authored-by: Simon Ser <contact@emersion.fr>
2021-05-21backend: automatically create allocatorSimon Ser
Introduce a new backend_get_allocator function that automatically creates an allocator for the backend if the backend has a renderer.
2021-05-21backend: automatically create rendererSimon Ser
If a backend accepts buffers (as indicated by get_buffer_caps) but doesn't implement get_renderer, automatically create a renderer.
2021-05-21backend: introduce wlr_backend_finishSimon Ser
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.
2021-04-28Log when WLR_BACKENDS/WLR_RENDERER is setSimon Ser
Makes it easier to figure out why a backend/renderer is picked.
2021-04-28backend: introduce backend_get_buffer_capsSimon Zeni
2021-04-12backend: move get_drm_fd to public interfaceRoman Gilg
The get_drm_fd was made available in an internal header with a53ab146f. Move it now to the public header so consumers opting in to the unstable interfaces can make use of it.
2021-01-16backend: add get_drm_fd to interfaceSimon Ser
This function allows backends to return the DRM FD they are using. This will allow the allocator and the renderer to use the right device.
2021-01-04backend/session: allow wlr_session_find_gpus to return an errorSimon Ser
Sometimes wlr_session_find_gpus will encounter an error. This is different from finding zero GPUs. On error, wlr_session_find_gpus already returns -1. However, this is casted to size_t, so callers uncorrectly assume this is a success. Instead, make wlr_session_find_gpus return a ssize_t and allow callers to handle the error accordingly.
2020-12-30Remove wlr_create_renderer_func_tSimon Ser
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.
2020-11-19backend/session: operate on wlr_deviceSimon Ser
Instead of operating on FDs in {open,close}_device, operate on wlr_devices. This avoids the device lookup in wlr_session and allows callers to have access to wlr_device fields. For now, we use it to remove wlr_session_signal_add and replace it with a more idiomatic wlr_session.events.change field. In the future, other events will be added.
2020-09-16backend: remove check for _WAYLAND_DISPLAYSimon Ser
I'm not sure what this was used for, but it's not used by libwayland. Setting _WAYLAND_DISPLAY would result in the Wayland backend being picked but would ignore the actual value of the env variable.
2020-01-10Drop RDP backendDrew DeVault
Users interested in remote access to wlroots compositors should use wayvnc: https://github.com/any1/wayvnc
2020-01-08Allow WLR_RDP_PORT to be any valid TCP/UDP port numberJason
2019-11-18backend: Do not attempt DRM on X11/WL failureScott Anderson
This can really mess with the session if logind is not being used, and it's going to always fail anyway.
2019-07-27Remove all wayland-server.h includesSimon Ser
The documentation for wayland-server.h says: > Use of this header file is discouraged. Prefer including > wayland-server-core.h instead, which does not include the server protocol > header and as such only defines the library PI, excluding the deprecated API > below. Replacing wayland-server.h with wayland-server-core.h allows us to drop the WL_HIDE_DEPRECATED declaration.
2019-04-08Add FreeRDP backend for remote desktop supportDrew DeVault
2019-01-17Introduce noop backendRyan Dwyer
The noop backend is similar to headless, but it doesn't contain a renderer. It can be used as a place to stash views for when there's no physical outputs connected.
2018-11-12Use #if instead of #ifdef for wlroots config dataemersion
This prevents some annoying issues when e.g. not including wlr/config.h or making a typo in the guard name.
2018-10-13backend: fix use-after-free in wlr_backend_autocreateemersion
Found by clang static analyzer.
2018-10-04Rename get_present_clock to get_presentation clock, use itemersion