wlroots/include/backend/drm/properties.h
Ian Forbes a8611fdfb2 backend/drm: Add support for hotplug_mode_update connector property
This connector property is used by virtual graphics drivers to indicate
that a virtual display has changed its list of supported resolutions and
updated its preferred mode. In the event of a hotplug the connector is
considered to be "re-plugged" without disconnecting first. This allows
virtual displays to be resized automatically when their window size
changes.

Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
2024-11-04 15:29:10 -06:00

81 lines
2.1 KiB
C

#ifndef BACKEND_DRM_PROPERTIES_H
#define BACKEND_DRM_PROPERTIES_H
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
/*
* These types contain the property ids for several DRM objects.
* For more details, see:
* https://dri.freedesktop.org/docs/drm/gpu/drm-kms.html#kms-properties
*/
struct wlr_drm_connector_props {
uint32_t edid;
uint32_t dpms;
uint32_t link_status; // not guaranteed to exist
uint32_t path;
uint32_t vrr_capable; // not guaranteed to exist
uint32_t subconnector; // not guaranteed to exist
uint32_t non_desktop;
uint32_t panel_orientation; // not guaranteed to exist
uint32_t content_type; // not guaranteed to exist
uint32_t max_bpc; // not guaranteed to exist
uint32_t hotplug_mode_update; // not guaranteed to exist, VMs only
// atomic-modesetting only
uint32_t crtc_id;
};
struct wlr_drm_crtc_props {
// Neither of these are guaranteed to exist
uint32_t vrr_enabled;
uint32_t gamma_lut;
uint32_t gamma_lut_size;
// atomic-modesetting only
uint32_t active;
uint32_t mode_id;
uint32_t out_fence_ptr;
};
struct wlr_drm_plane_props {
uint32_t type;
uint32_t rotation; // Not guaranteed to exist
uint32_t in_formats; // Not guaranteed to exist
uint32_t size_hints; // Not guaranteed to exist
// atomic-modesetting only
uint32_t src_x;
uint32_t src_y;
uint32_t src_w;
uint32_t src_h;
uint32_t crtc_x;
uint32_t crtc_y;
uint32_t crtc_w;
uint32_t crtc_h;
uint32_t fb_id;
uint32_t crtc_id;
uint32_t fb_damage_clips;
uint32_t hotspot_x;
uint32_t hotspot_y;
uint32_t in_fence_fd;
};
bool get_drm_connector_props(int fd, uint32_t id,
struct wlr_drm_connector_props *out);
bool get_drm_crtc_props(int fd, uint32_t id, struct wlr_drm_crtc_props *out);
bool get_drm_plane_props(int fd, uint32_t id, struct wlr_drm_plane_props *out);
bool get_drm_prop(int fd, uint32_t obj, uint32_t prop, uint64_t *ret);
void *get_drm_prop_blob(int fd, uint32_t obj, uint32_t prop, size_t *ret_len);
char *get_drm_prop_enum(int fd, uint32_t obj, uint32_t prop);
bool introspect_drm_prop_range(int fd, uint32_t prop_id,
uint64_t *min, uint64_t *max);
#endif