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backend/drm: properly delay syncobj signalling

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DRM CRTC signals when scanout begins, but
wlr_output_state_set_signal_timeline() is defined to signal buffer
release. Delay to the next page flip

(cherry picked from commit cd555f9261)
This commit is contained in:
Félix Poisot 2025-01-31 18:59:10 +00:00 • committed by Simon Ser
parent 8daba3246d
commit eff5aa52e6
3 changed files with 41 additions and 2 deletions
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4
include/backend/drm/drm.h
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@ -29,8 +29,12 @@ struct wlr_drm_plane {
/* Buffer submitted to the kernel, will be presented on next vblank */
struct wlr_drm_fb *queued_fb;
struct wlr_drm_syncobj_timeline *queued_release_timeline;
uint64_t queued_release_point;
/* Buffer currently displayed on screen */
struct wlr_drm_fb *current_fb;
struct wlr_drm_syncobj_timeline *current_release_timeline;
uint64_t current_release_point;
/* Viewport belonging to the last committed fb */
struct wlr_drm_viewport viewport;