From cf6a1716ae719f9c59b1d175ca84a79015fab8e1 Mon Sep 17 00:00:00 2001
From: Vaxry <vaxry@vaxry.net>
Date: Sat, 31 Aug 2024 18:32:57 +0200
Subject: [PATCH] syncobj: wait for deadline instead of available

avoids slow apps from lagging the desktop
---
 src/protocols/DRMSyncobj.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/protocols/DRMSyncobj.cpp b/src/protocols/DRMSyncobj.cpp
index 4993f1a4..e0c90a3b 100644
--- a/src/protocols/DRMSyncobj.cpp
+++ b/src/protocols/DRMSyncobj.cpp
@@ -58,8 +58,8 @@ CDRMSyncobjSurfaceResource::CDRMSyncobjSurfaceResource(SP<CWpLinuxDrmSyncobjSurf
         if (!pending.acquireTimeline)
             return;
 
-        // wait for the acquire timeline to materialize
-        auto materialized = pending.acquireTimeline->timeline->check(pending.acquirePoint, DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE);
+        // wait for the buffer to be released by the gpu before sending a commit to avoid lagging the desktop
+        auto materialized = pending.acquireTimeline->timeline->check(pending.acquirePoint, DRM_SYNCOBJ_WAIT_FLAGS_WAIT_DEADLINE);
         if (!materialized.has_value()) {
             LOGM(ERR, "Failed to check the acquire timeline");
             resource->noMemory();
@@ -70,7 +70,7 @@ CDRMSyncobjSurfaceResource::CDRMSyncobjSurfaceResource(SP<CWpLinuxDrmSyncobjSurf
             return;
 
         surface->lockPendingState();
-        pending.acquireTimeline->timeline->addWaiter([this]() { surface->unlockPendingState(); }, pending.acquirePoint, DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE);
+        pending.acquireTimeline->timeline->addWaiter([this]() { surface->unlockPendingState(); }, pending.acquirePoint, DRM_SYNCOBJ_WAIT_FLAGS_WAIT_DEADLINE);
     });
 
     listeners.surfaceCommit = surface->events.roleCommit.registerListener([this](std::any d) {