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#ifndef BACKEND_DRM_DRM_H
#define BACKEND_DRM_DRM_H
#include <gbm.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <time.h>
#include <wayland-server-core.h>
#include <wayland-util.h>
#include <wlr/backend/drm.h>
#include <wlr/backend/session.h>
#include <wlr/render/drm_format_set.h>
#include <xf86drmMode.h>
#include "iface.h"
#include "properties.h"
#include "renderer.h"
struct wlr_drm_plane {
uint32_t type;
uint32_t id;
struct wlr_drm_surface surf;
struct wlr_drm_surface mgpu_surf;
/* Buffer to be submitted to the kernel on the next page-flip */
struct wlr_drm_fb pending_fb;
/* Buffer submitted to the kernel, will be presented on next vblank */
struct wlr_drm_fb queued_fb;
/* Buffer currently displayed on screen */
struct wlr_drm_fb current_fb;
struct wlr_drm_format_set formats;
// Only used by cursor
bool cursor_enabled;
int32_t cursor_hotspot_x, cursor_hotspot_y;
union wlr_drm_plane_props props;
};
struct wlr_drm_crtc_state {
bool active;
struct wlr_drm_mode *mode;
};
struct wlr_drm_crtc {
uint32_t id;
bool pending_modeset;
struct wlr_drm_crtc_state pending, current;
// Atomic modesetting only
uint32_t mode_id;
uint32_t gamma_lut;
// Legacy only
drmModeCrtc *legacy_crtc;
struct wlr_drm_plane *primary;
struct wlr_drm_plane *cursor;
union wlr_drm_crtc_props props;
};
struct wlr_drm_backend {
struct wlr_backend backend;
struct wlr_drm_backend *parent;
const struct wlr_drm_interface *iface;
clockid_t clock;
bool addfb2_modifiers;
int fd;
char *name;
struct wlr_device *dev;
size_t num_crtcs;
struct wlr_drm_crtc *crtcs;
struct wl_display *display;
struct wl_event_source *drm_event;
struct wl_listener display_destroy;
struct wl_listener session_destroy;
struct wl_listener session_active;
struct wl_listener dev_change;
struct wl_list outputs;
struct wlr_drm_renderer renderer;
struct wlr_session *session;
};
enum wlr_drm_connector_state {
// Connector is available but no output is plugged in
WLR_DRM_CONN_DISCONNECTED,
// An output just has been plugged in and is waiting for a modeset
WLR_DRM_CONN_NEEDS_MODESET,
WLR_DRM_CONN_CLEANUP,
WLR_DRM_CONN_CONNECTED,
};
struct wlr_drm_mode {
struct wlr_output_mode wlr_mode;
drmModeModeInfo drm_mode;
};
struct wlr_drm_connector {
struct wlr_output output; // only valid if state != DISCONNECTED
struct wlr_drm_backend *backend;
char name[24];
enum wlr_drm_connector_state state;
struct wlr_output_mode *desired_mode;
bool desired_enabled;
uint32_t id;
struct wlr_drm_crtc *crtc;
uint32_t possible_crtcs;
union wlr_drm_connector_props props;
int32_t cursor_x, cursor_y;
drmModeCrtc *old_crtc;
struct wl_list link;
/* CRTC ID if a page-flip is pending, zero otherwise.
*
* We've asked for a state change in the kernel, and yet to receive a
* notification for its completion. Currently, the kernel only has a
* queue length of 1, and no way to modify your submissions after
* they're sent.
*/
uint32_t pending_page_flip_crtc;
};
struct wlr_drm_backend *get_drm_backend_from_backend(
struct wlr_backend *wlr_backend);
bool check_drm_features(struct wlr_drm_backend *drm);
bool init_drm_resources(struct wlr_drm_backend *drm);
void finish_drm_resources(struct wlr_drm_backend *drm);
void restore_drm_outputs(struct wlr_drm_backend *drm);
void scan_drm_connectors(struct wlr_drm_backend *state);
int handle_drm_event(int fd, uint32_t mask, void *data);
void destroy_drm_connector(struct wlr_drm_connector *conn);
bool drm_connector_set_mode(struct wlr_drm_connector *conn,
struct wlr_output_mode *mode);
bool drm_connector_is_cursor_visible(struct wlr_drm_connector *conn);
bool drm_connector_supports_vrr(struct wlr_drm_connector *conn);
size_t drm_crtc_get_gamma_lut_size(struct wlr_drm_backend *drm,
struct wlr_drm_crtc *crtc);
struct wlr_drm_fb *plane_get_next_fb(struct wlr_drm_plane *plane);
#define wlr_drm_conn_log(conn, verb, fmt, ...) \
wlr_log(verb, "connector %s: " fmt, conn->name, ##__VA_ARGS__)
#define wlr_drm_conn_log_errno(conn, verb, fmt, ...) \
wlr_log_errno(verb, "connector %s: " fmt, conn->name, ##__VA_ARGS__)
#endif
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