From 2d558338bfa00802fb62e746a022185c812ac35b Mon Sep 17 00:00:00 2001
From: Vicki Pfau <vi@endrift.com>
Date: Sun, 10 Sep 2017 13:13:49 -0700
Subject: [PATCH] Qt: Copy framebuffers to avoid issues with frameskip (fixes
 #862)

---
 src/platform/qt/CoreController.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/platform/qt/CoreController.cpp b/src/platform/qt/CoreController.cpp
index a639cdf46..bcdca745e 100644
--- a/src/platform/qt/CoreController.cpp
+++ b/src/platform/qt/CoreController.cpp
@@ -736,6 +736,8 @@ void CoreController::finishFrame() {
 	if (m_activeBuffer == m_completeBuffer) {
 		m_activeBuffer = &m_buffers[1];
 	}
+	// Copy contents to avoid issues when doing frameskip
+	*m_activeBuffer = *m_completeBuffer;
 	m_threadContext.core->setVideoBuffer(m_threadContext.core, reinterpret_cast<color_t*>(m_activeBuffer->data()), screenDimensions().width());
 
 	for (auto& action : m_frameActions) {