mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-23 05:15:58 +01:00
7b52388424
Sessions can now be retrieved from a backend in a more general manner. Multi-backend gets back its `session` field that contains the session if one was created, removing the interfacing from multi backend with the drm backend directly. This adds the possibility to use sessions even without the drm backend. It additionally fixes the bug that 2 session objects got created when WLR_BACKENDS were set to "libinput,drm". To allow vt switching without drm backend (and drm fd) on logind, start listening to PropertiesChanged signals from dbus and parse the session "Active" property when no master fd was created (this does not change current drm backend behaviour in any way).
66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
/*
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* This an unstable interface of wlroots. No guarantees are made regarding the
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* future consistency of this API.
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*/
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#ifndef WLR_USE_UNSTABLE
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#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
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#endif
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#ifndef WLR_BACKEND_H
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#define WLR_BACKEND_H
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#include <wayland-server.h>
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#include <wlr/backend/session.h>
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#include <wlr/render/egl.h>
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struct wlr_backend_impl;
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struct wlr_backend {
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const struct wlr_backend_impl *impl;
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struct {
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/** Raised when destroyed, passed the wlr_backend reference */
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struct wl_signal destroy;
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/** Raised when new inputs are added, passed the wlr_input_device */
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struct wl_signal new_input;
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/** Raised when new outputs are added, passed the wlr_output */
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struct wl_signal new_output;
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} events;
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};
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typedef struct wlr_renderer *(*wlr_renderer_create_func_t)(struct wlr_egl *egl, EGLenum platform,
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void *remote_display, EGLint *config_attribs, EGLint visual_id);
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/**
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* Automatically initializes the most suitable backend given the environment.
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* Will always return a multibackend. The backend is created but not started.
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* Returns NULL on failure.
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*
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* The compositor can request to initialize the backend's renderer by setting
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* the create_render_func. The callback must initialize the given wlr_egl and
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* return a valid wlr_renderer, or NULL if it has failed to initiaze it.
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* Pass NULL as create_renderer_func to use the backend's default renderer.
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*/
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struct wlr_backend *wlr_backend_autocreate(struct wl_display *display,
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wlr_renderer_create_func_t create_renderer_func);
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/**
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* Start the backend. This may signal new_input or new_output immediately, but
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* may also wait until the display's event loop begins. Returns false on
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* failure.
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*/
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bool wlr_backend_start(struct wlr_backend *backend);
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/**
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* Destroy the backend and clean up all of its resources. Normally called
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* automatically when the wl_display is destroyed.
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*/
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void wlr_backend_destroy(struct wlr_backend *backend);
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/**
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* Obtains the wlr_renderer reference this backend is using.
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*/
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struct wlr_renderer *wlr_backend_get_renderer(struct wlr_backend *backend);
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/**
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* Obtains the wlr_session reference from this backend if there is any.
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* Might return NULL for backends that don't use a session.
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*/
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struct wlr_session *wlr_backend_get_session(struct wlr_backend *backend);
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#endif
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