From 9dd8ebcc6093a372990ec446ce1067d042c73038 Mon Sep 17 00:00:00 2001
From: Daryl Borth <dborth@gmail.com>
Date: Thu, 30 Aug 2018 11:44:41 -0600
Subject: [PATCH] fix mangled image when switching between HQ2x and scanlines
 filters

---
 readme.txt       | 5 +++++
 source/video.cpp | 1 +
 2 files changed, 6 insertions(+)

diff --git a/readme.txt b/readme.txt
index 0126b61..29c2d77 100644
--- a/readme.txt
+++ b/readme.txt
@@ -33,6 +33,11 @@ Wii homebrew is WiiBrew (www.wiibrew.org).
 |                                                          UPDATE HISTORY  |
 •˜———–—––-- - —————————––––– ———–—––-- - —————————––––– ———–—––-- - ————————•
 
+[4.4.0]
+
+* Improved WiiFlow integration
+* Fixed mangled image when switching between HQ2x and scanlines filters
+
 [4.3.9 - August 24, 2018]
 
 * Revert core completely back to Snes9x 1.52
diff --git a/source/video.cpp b/source/video.cpp
index 6982775..913b3aa 100644
--- a/source/video.cpp
+++ b/source/video.cpp
@@ -757,6 +757,7 @@ update_video (int width, int height)
 			fscale = 1;
 #endif
 		ResetVideo_Emu ();	// reset video to emulator rendering settings
+		memset(filtermem, 0, FILTERMEM_SIZE);
 
 		/** Update scaling **/
 		if (GCSettings.render == 0)	// original render mode