From 7cc4b1d8b49f89c57702375972812d7bf539f4f5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Hejl?= <hejl.lukas@gmail.com>
Date: Sat, 5 Feb 2022 13:26:52 +0100
Subject: [PATCH 1/2] Suppressed reports of memory leaks from Mesa 3D software
 driver in WSLg.

---
 src/PrusaSlicer.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/PrusaSlicer.cpp b/src/PrusaSlicer.cpp
index 5bde6c128..4483d6010 100644
--- a/src/PrusaSlicer.cpp
+++ b/src/PrusaSlicer.cpp
@@ -836,6 +836,7 @@ extern "C" {
                "leak:libnvidia-glcore.so\n"     // For NVidia driver.
                "leak:libnvidia-tls.so\n"        // For NVidia driver.
                "leak:terminator_CreateDevice\n" // For Intel Vulkan drivers.
+               "leak:swrast_dri.so\n"           // For Mesa 3D software driver.
             ;
     }
 }

From dd3964c8c3f290c689a342536c7353f865f2a936 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Hejl?= <hejl.lukas@gmail.com>
Date: Sat, 5 Feb 2022 13:27:54 +0100
Subject: [PATCH 2/2] Added deallocation of SupportLayers
 (PrintObject::m_support_layers) into the PrintObject destructor and fixed
 memory leak in modulate_extrusion_by_overlapping_layers().

---
 src/libslic3r/Print.hpp           | 3 ++-
 src/libslic3r/SupportMaterial.cpp | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/libslic3r/Print.hpp b/src/libslic3r/Print.hpp
index b6e4802bb..c5e312a2b 100644
--- a/src/libslic3r/Print.hpp
+++ b/src/libslic3r/Print.hpp
@@ -346,10 +346,11 @@ private:
     friend class Print;
 
 	PrintObject(Print* print, ModelObject* model_object, const Transform3d& trafo, PrintInstances&& instances);
-    ~PrintObject() {
+    ~PrintObject() override {
         if (m_shared_regions && --m_shared_regions->m_ref_cnt == 0)
             delete m_shared_regions;
         clear_layers();
+        clear_support_layers();
     }
 
     void                    config_apply(const ConfigBase &other, bool ignore_nonexistent = false) { m_config.apply(other, ignore_nonexistent); }
diff --git a/src/libslic3r/SupportMaterial.cpp b/src/libslic3r/SupportMaterial.cpp
index 67bd2639b..195fc9e17 100644
--- a/src/libslic3r/SupportMaterial.cpp
+++ b/src/libslic3r/SupportMaterial.cpp
@@ -3754,6 +3754,7 @@ void modulate_extrusion_by_overlapping_layers(
             assert(path != nullptr);
             polylines.emplace_back(Polyline(std::move(path->polyline)));
             path_ends.emplace_back(std::pair<Point, Point>(polylines.back().points.front(), polylines.back().points.back()));
+            delete path;
         }
     }
     // Destroy the original extrusion paths, their polylines were moved to path_fragments already.