mirrors/wlroots
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/wlroots/wlroots.git synced 2025-10-29 05:40:12 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

render/drm_syncobj: add helpers to wait for timeline points

Browse source 
References: https://patchwork.freedesktop.org/patch/506761/
This commit is contained in:
Simon Ser 2023-07-10 17:24:09 +02:00
parent ea75aa3065
commit d9bfb47648
3 changed files with 134 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

36
include/wlr/render/drm_syncobj.h
View file

@ -3,6 +3,7 @@
#include <stdbool.h>
#include <stdint.h>
#include <wayland-server-core.h>
/**
* A synchronization timeline.
@ -33,6 +34,17 @@ struct wlr_drm_syncobj_timeline {
size_t n_refs;
};
struct wlr_drm_syncobj_timeline_waiter {
struct {
struct wl_signal ready;
} events;
// private state
int ev_fd;
struct wl_event_source *event_source;
};
/**
* Create a new synchronization timeline.
*/
@ -50,6 +62,30 @@ struct wlr_drm_syncobj_timeline *wlr_drm_syncobj_timeline_ref(struct wlr_drm_syn
* Unreference a synchronization timeline.
*/
void wlr_drm_syncobj_timeline_unref(struct wlr_drm_syncobj_timeline *timeline);
/**
* Check if a timeline point has been signalled or has materialized.
*
* Flags can be:
*
* - DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT to wait for the point to be
* signalled
* - DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE to only wait for a fence to
* materialize
*/
bool wlr_drm_syncobj_timeline_check(struct wlr_drm_syncobj_timeline *timeline,
uint64_t point, uint32_t flags, bool *result);
/**
* Asynchronously wait for a timeline point.
*
* See wlr_drm_syncobj_timeline_check() for a definition of flags.
*/
bool wlr_drm_syncobj_timeline_waiter_init(struct wlr_drm_syncobj_timeline_waiter *waiter,
struct wlr_drm_syncobj_timeline *timeline, uint64_t point, uint32_t flags,
struct wl_event_loop *loop);
/**
* Cancel a timeline waiter.
*/
void wlr_drm_syncobj_timeline_waiter_finish(struct wlr_drm_syncobj_timeline_waiter *waiter);
/**
* Export a timeline point as a sync_file FD.
*