From 12985fa0d8e43b1e33326dfb49be681970dfaea5 Mon Sep 17 00:00:00 2001
From: Vaxry <vaxry@vaxry.net>
Date: Tue, 5 Mar 2024 00:21:37 +0000
Subject: surface: fix damage tearing feedback

fixes #4935
---
 src/events/Windows.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/events/Windows.cpp')

diff --git a/src/events/Windows.cpp b/src/events/Windows.cpp
index 3517badc..0bf84f10 100644
--- a/src/events/Windows.cpp
+++ b/src/events/Windows.cpp
@@ -841,6 +841,22 @@ void Events::listener_commitWindow(void* owner, void* data) {
         PWINDOW->m_pPopupHead->recheckTree();
     }
 
+    // tearing: if solitary, redraw it. This still might be a single surface window
+    const auto PMONITOR = g_pCompositor->getMonitorFromID(PWINDOW->m_iMonitorID);
+    if (PMONITOR && PMONITOR->solitaryClient == PWINDOW && PWINDOW->canBeTorn() && PMONITOR->tearingState.canTear &&
+        PWINDOW->m_pWLSurface.wlr()->current.committed & WLR_SURFACE_STATE_BUFFER) {
+        CRegion damageBox{&PWINDOW->m_pWLSurface.wlr()->buffer_damage};
+
+        if (!damageBox.empty()) {
+            if (PMONITOR->tearingState.busy) {
+                PMONITOR->tearingState.frameScheduledWhileBusy = true;
+            } else {
+                PMONITOR->tearingState.nextRenderTorn = true;
+                g_pHyprRenderer->renderMonitor(PMONITOR);
+            }
+        }
+    }
+
     if (PWINDOW->m_bIsX11 || !PWINDOW->m_bIsFloating || PWINDOW->m_bIsFullscreen)
         return;
 
-- 
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