From f5d90a77c1dfa1aca3e0a546aa93105f28de5cbc Mon Sep 17 00:00:00 2001
From: rogerman <rogerman@users.noreply.github.com>
Date: Thu, 10 Jan 2019 21:33:16 -0800
Subject: [PATCH] GPU: Fix graphical glitch that can occur when frameskip is
 enabled, running a custom resolution on a multicore CPU system. (Regression
 from commit abc0649.)

---
 desmume/src/GPU.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/desmume/src/GPU.cpp b/desmume/src/GPU.cpp
index 30b9d969a..026bf14cb 100755
--- a/desmume/src/GPU.cpp
+++ b/desmume/src/GPU.cpp
@@ -9653,8 +9653,11 @@ void GPUSubsystem::RenderLine(const size_t l)
 		}
 	}
 	
-	this->_engineMain->UpdateRenderStates<OUTPUTFORMAT>(l);
-	this->_engineSub->UpdateRenderStates<OUTPUTFORMAT>(l);
+	if (!this->_willFrameSkip)
+	{
+		this->_engineMain->UpdateRenderStates<OUTPUTFORMAT>(l);
+		this->_engineSub->UpdateRenderStates<OUTPUTFORMAT>(l);
+	}
 	
 	if ( (isFramebufferRenderNeeded[GPUEngineID_Main] || isDisplayCaptureNeeded) && !this->_willFrameSkip )
 	{