mirror of
https://gitlab.freedesktop.org/wlroots/wlroots.git
synced 2025-10-29 05:40:12 -04:00
65 lines
2 KiB
C
65 lines
2 KiB
C
/*
|
|
* This an unstable interface of wlroots. No guarantees are made regarding the
|
|
* future consistency of this API.
|
|
*/
|
|
#ifndef WLR_USE_UNSTABLE
|
|
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
|
|
#endif
|
|
|
|
#ifndef WLR_BACKEND_H
|
|
#define WLR_BACKEND_H
|
|
|
|
#include <wayland-server-core.h>
|
|
|
|
struct wlr_session;
|
|
struct wlr_backend_impl;
|
|
|
|
/**
|
|
* A backend provides a set of input and output devices.
|
|
*/
|
|
struct wlr_backend {
|
|
const struct wlr_backend_impl *impl;
|
|
|
|
struct {
|
|
/** Raised when destroyed */
|
|
struct wl_signal destroy;
|
|
/** Raised when new inputs are added, passed the struct wlr_input_device */
|
|
struct wl_signal new_input;
|
|
/** Raised when new outputs are added, passed the struct wlr_output */
|
|
struct wl_signal new_output;
|
|
} events;
|
|
};
|
|
|
|
/**
|
|
* Automatically initializes the most suitable backend given the environment.
|
|
* Will always return a multi-backend. The backend is created but not started.
|
|
* Returns NULL on failure.
|
|
*
|
|
* If session_ptr is not NULL, it's populated with the session which has been
|
|
* created with the backend, if any.
|
|
*
|
|
* The multi-backend will be destroyed if one of the primary underlying
|
|
* backends is destroyed (e.g. if the primary DRM device is unplugged).
|
|
*/
|
|
struct wlr_backend *wlr_backend_autocreate(struct wl_event_loop *loop,
|
|
struct wlr_session **session_ptr);
|
|
/**
|
|
* Start the backend. This may signal new_input or new_output immediately, but
|
|
* may also wait until the display's event loop begins. Returns false on
|
|
* failure.
|
|
*/
|
|
bool wlr_backend_start(struct wlr_backend *backend);
|
|
/**
|
|
* Destroy the backend and clean up all of its resources. Normally called
|
|
* automatically when the struct wl_display is destroyed.
|
|
*/
|
|
void wlr_backend_destroy(struct wlr_backend *backend);
|
|
/**
|
|
* Returns the DRM node file descriptor used by the backend's underlying
|
|
* platform. Can be used by consumers for additional rendering operations.
|
|
* The consumer must not close the file descriptor since the backend continues
|
|
* to have ownership of it.
|
|
*/
|
|
int wlr_backend_get_drm_fd(struct wlr_backend *backend);
|
|
|
|
#endif
|