From ff86f723b227b3f526904d422964322b3cbb4d7a Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Fri, 6 May 2022 16:06:21 +0200
Subject: Fix blur leaving strokes on full damage tracking

---
 src/events/Monitors.cpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

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

diff --git a/src/events/Monitors.cpp b/src/events/Monitors.cpp
index bb8fbe0a..6d0e57d2 100644
--- a/src/events/Monitors.cpp
+++ b/src/events/Monitors.cpp
@@ -183,6 +183,23 @@ void Events::listener_monitorFrame(void* owner, void* data) {
     // if we have no tracking or full tracking, invalidate the entire monitor
     if (DTMODE == DAMAGE_TRACKING_NONE || DTMODE == DAMAGE_TRACKING_MONITOR) {
         pixman_region32_union_rect(&damage, &damage, 0, 0, (int)PMONITOR->vecSize.x, (int)PMONITOR->vecSize.y);
+
+        pixman_region32_copy(&g_pHyprOpenGL->m_rOriginalDamageRegion, &damage);
+    } else {
+        // if we use blur we need to expand the damage for proper blurring
+        if (g_pConfigManager->getInt("decoration:blur") == 1) {
+            // TODO: can this be optimized?
+            const auto BLURSIZE = g_pConfigManager->getInt("decoration:blur_size");
+            const auto BLURPASSES = g_pConfigManager->getInt("decoration:blur_passes");
+
+            const auto BLURRADIUS = BLURSIZE * BLURPASSES * 2; // is this 2? I don't know but 2 works.
+
+            pixman_region32_copy(&g_pHyprOpenGL->m_rOriginalDamageRegion, &damage);
+
+            // now, prep the damage, get the extended damage region
+            wlr_region_expand(&damage, &damage, BLURRADIUS);                                                   // expand for proper blurring
+        }
+        
     }
 
     // TODO: this is getting called with extents being 0,0,0,0 should it be?
-- 
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