From 5af00496c58968d0313719ba19c8cfa6a7ec5da6 Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Mon, 3 May 2021 22:06:57 +1000
Subject: [PATCH] viewer: fixed crash on destruction when interlacing

---
 app/widget/viewer/viewerdisplay.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/app/widget/viewer/viewerdisplay.cpp b/app/widget/viewer/viewerdisplay.cpp
index f4bea6bbb..2e3773348 100644
--- a/app/widget/viewer/viewerdisplay.cpp
+++ b/app/widget/viewer/viewerdisplay.cpp
@@ -452,9 +452,12 @@ void ViewerDisplayWidget::OnPaint()
 
 void ViewerDisplayWidget::OnDestroy()
 {
+  deinterlace_shader_.clear();
+
   super::OnDestroy();
 
   texture_ = nullptr;
+  deinterlace_texture_ = nullptr;
 }
 
 QPointF ViewerDisplayWidget::GetTexturePosition(const QPoint &screen_pos)