230 lines
6.1 KiB
C
230 lines
6.1 KiB
C
#ifndef BACKEND_DRM_DRM_H
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#define BACKEND_DRM_DRM_H
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <wayland-server-core.h>
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#include <wayland-util.h>
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#include <wlr/backend/drm.h>
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#include <wlr/backend/session.h>
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#include <wlr/render/drm_format_set.h>
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#include <wlr/types/wlr_output_layer.h>
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#include <xf86drmMode.h>
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#include "backend/drm/iface.h"
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#include "backend/drm/properties.h"
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#include "backend/drm/renderer.h"
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struct wlr_drm_plane {
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uint32_t type;
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uint32_t id;
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/* Only initialized on multi-GPU setups */
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struct wlr_drm_surface mgpu_surf;
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/* Buffer submitted to the kernel, will be presented on next vblank */
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struct wlr_drm_fb *queued_fb;
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/* Buffer currently displayed on screen */
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struct wlr_drm_fb *current_fb;
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struct wlr_drm_format_set formats;
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union wlr_drm_plane_props props;
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uint32_t initial_crtc_id;
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struct liftoff_plane *liftoff;
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struct liftoff_layer *liftoff_layer;
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};
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struct wlr_drm_layer {
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struct wlr_output_layer *wlr;
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struct liftoff_layer *liftoff;
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struct wlr_addon addon; // wlr_output_layer.addons
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struct wl_list link; // wlr_drm_crtc.layers
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/* Buffer to be submitted to the kernel on the next page-flip */
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struct wlr_drm_fb *pending_fb;
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/* Buffer submitted to the kernel, will be presented on next vblank */
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struct wlr_drm_fb *queued_fb;
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/* Buffer currently displayed on screen */
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struct wlr_drm_fb *current_fb;
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// One entry per wlr_drm_backend.planes
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bool *candidate_planes;
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};
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struct wlr_drm_crtc {
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uint32_t id;
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struct wlr_drm_lease *lease;
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struct liftoff_output *liftoff;
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struct liftoff_layer *liftoff_composition_layer;
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struct wl_list layers; // wlr_drm_layer.link
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// Atomic modesetting only
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bool own_mode_id;
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uint32_t mode_id;
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uint32_t gamma_lut;
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// Legacy only
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int legacy_gamma_size;
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struct wlr_drm_plane *primary;
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struct wlr_drm_plane *cursor;
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union wlr_drm_crtc_props props;
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};
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struct wlr_drm_backend {
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struct wlr_backend backend;
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struct wlr_drm_backend *parent;
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const struct wlr_drm_interface *iface;
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bool addfb2_modifiers;
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int fd;
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char *name;
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struct wlr_device *dev;
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struct liftoff_device *liftoff;
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size_t num_crtcs;
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struct wlr_drm_crtc *crtcs;
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size_t num_planes;
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struct wlr_drm_plane *planes;
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struct wl_event_source *drm_event;
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struct wl_listener session_destroy;
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struct wl_listener session_active;
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struct wl_listener parent_destroy;
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struct wl_listener dev_change;
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struct wl_listener dev_remove;
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struct wl_list fbs; // wlr_drm_fb.link
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struct wl_list connectors; // wlr_drm_connector.link
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struct wl_list page_flips; // wlr_drm_page_flip.link
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/* Only initialized on multi-GPU setups */
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struct wlr_drm_renderer mgpu_renderer;
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struct wlr_session *session;
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uint64_t cursor_width, cursor_height;
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struct wlr_drm_format_set mgpu_formats;
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bool supports_tearing_page_flips;
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};
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struct wlr_drm_mode {
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struct wlr_output_mode wlr_mode;
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drmModeModeInfo drm_mode;
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};
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struct wlr_drm_device_state {
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bool modeset;
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bool nonblock;
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struct wlr_drm_connector_state *connectors;
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size_t connectors_len;
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};
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struct wlr_drm_connector_state {
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struct wlr_drm_connector *connector;
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const struct wlr_output_state *base;
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bool active;
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drmModeModeInfo mode;
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struct wlr_drm_fb *primary_fb;
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struct wlr_drm_fb *cursor_fb;
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// used by atomic
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uint32_t mode_id;
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uint32_t gamma_lut;
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uint32_t fb_damage_clips;
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bool vrr_enabled;
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};
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/**
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* Per-page-flip tracking struct.
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*
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* We've asked for a state change in the kernel, and yet to receive a
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* notification for its completion. Currently, the kernel only has a queue
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* length of 1, and no way to modify your submissions after they're sent.
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*
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* However, we might have multiple in-flight page-flip events, for instance
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* when performing a non-blocking commit followed by a blocking commit. In
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* that case, conn will be set to NULL on the non-blocking commit to indicate
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* that it's been superseded.
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*/
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struct wlr_drm_page_flip {
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struct wl_list link; // wlr_drm_connector.page_flips
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struct wlr_drm_page_flip_connector *connectors;
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size_t connectors_len;
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};
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struct wlr_drm_page_flip_connector {
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uint32_t crtc_id;
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struct wlr_drm_connector *connector; // may be NULL
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};
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struct wlr_drm_connector {
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struct wlr_output output; // only valid if status != DISCONNECTED
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struct wlr_drm_backend *backend;
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char name[24];
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drmModeConnection status;
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uint32_t id;
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uint64_t max_bpc_bounds[2];
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struct wlr_drm_lease *lease;
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struct wlr_drm_crtc *crtc;
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uint32_t possible_crtcs;
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union wlr_drm_connector_props props;
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bool cursor_enabled;
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int cursor_x, cursor_y;
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int cursor_width, cursor_height;
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int cursor_hotspot_x, cursor_hotspot_y;
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/* Buffer to be submitted to the kernel on the next page-flip */
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struct wlr_drm_fb *cursor_pending_fb;
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struct wl_list link; // wlr_drm_backend.connectors
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// Last committed page-flip
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struct wlr_drm_page_flip *pending_page_flip;
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int32_t refresh;
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};
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struct wlr_drm_backend *get_drm_backend_from_backend(
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struct wlr_backend *wlr_backend);
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bool check_drm_features(struct wlr_drm_backend *drm);
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bool init_drm_resources(struct wlr_drm_backend *drm);
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void finish_drm_resources(struct wlr_drm_backend *drm);
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void scan_drm_connectors(struct wlr_drm_backend *state,
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struct wlr_device_hotplug_event *event);
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void scan_drm_leases(struct wlr_drm_backend *drm);
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bool commit_drm_device(struct wlr_drm_backend *drm,
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const struct wlr_backend_output_state *states, size_t states_len, bool test_only);
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void restore_drm_device(struct wlr_drm_backend *drm);
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int handle_drm_event(int fd, uint32_t mask, void *data);
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void destroy_drm_connector(struct wlr_drm_connector *conn);
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bool drm_connector_is_cursor_visible(struct wlr_drm_connector *conn);
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bool drm_connector_supports_vrr(struct wlr_drm_connector *conn);
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size_t drm_crtc_get_gamma_lut_size(struct wlr_drm_backend *drm,
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struct wlr_drm_crtc *crtc);
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void drm_lease_destroy(struct wlr_drm_lease *lease);
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void drm_page_flip_destroy(struct wlr_drm_page_flip *page_flip);
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struct wlr_drm_layer *get_drm_layer(struct wlr_drm_backend *drm,
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struct wlr_output_layer *layer);
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#define wlr_drm_conn_log(conn, verb, fmt, ...) \
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wlr_log(verb, "connector %s: " fmt, conn->name, ##__VA_ARGS__)
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#define wlr_drm_conn_log_errno(conn, verb, fmt, ...) \
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wlr_log_errno(verb, "connector %s: " fmt, conn->name, ##__VA_ARGS__)
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#endif
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