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/*
* 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_DRM_H
#define WLR_BACKEND_DRM_H
#include <wayland-server-core.h>
#include <wlr/backend.h>
#include <wlr/backend/session.h>
#include <wlr/types/wlr_output.h>
/**
* Creates a DRM backend using the specified GPU file descriptor (typically from
* a device node in /dev/dri).
*
* To slave this to another DRM backend, pass it as the parent (which _must_ be
* a DRM backend, other kinds of backends raise SIGABRT).
*/
struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
struct wlr_session *session, struct wlr_device *dev,
struct wlr_backend *parent);
bool wlr_backend_is_drm(struct wlr_backend *backend);
bool wlr_output_is_drm(struct wlr_output *output);
/**
* Get the KMS connector object ID.
*/
uint32_t wlr_drm_connector_get_id(struct wlr_output *output);
/**
* Tries to open non-master DRM FD. The compositor must not call `drmSetMaster`
* on the returned FD.
* Returns a valid opened DRM FD, or -1 on error.
*/
int wlr_drm_backend_get_non_master_fd(struct wlr_backend *backend);
/**
* Leases a given output to the caller. The output must be from the associated
* DRM backend.
* Returns a valid opened DRM FD or -1 on error.
*/
int wlr_drm_create_lease(struct wlr_output **outputs, size_t n_outputs,
uint32_t *lessee_id);
/**
* Terminates a given lease. The output will be owned again by the backend
*/
bool wlr_drm_backend_terminate_lease(struct wlr_backend *backend,
uint32_t lessee_id);
/**
* Add mode to the list of available modes
*/
typedef struct _drmModeModeInfo drmModeModeInfo;
struct wlr_output_mode *wlr_drm_connector_add_mode(struct wlr_output *output,
const drmModeModeInfo *mode);
#endif
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