From badf492941824d1b0ad1ef2ea89d3e1d88670f5d Mon Sep 17 00:00:00 2001
From: Aleix Pol <aleixpol@kde.org>
Date: Tue, 8 Mar 2022 16:19:43 +0100
Subject: [PATCH] drm: Properly specify the yInversion of the shadow buffer

Otherwise when we render it, we do so upside down and screen sharing
looks broken.
This only happens when the shadow buffer is in use, so it's not all that
common.
---
 src/backends/drm/shadowbuffer.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/backends/drm/shadowbuffer.cpp b/src/backends/drm/shadowbuffer.cpp
index 3be288d3b1..e1c9fb0062 100644
--- a/src/backends/drm/shadowbuffer.cpp
+++ b/src/backends/drm/shadowbuffer.cpp
@@ -40,6 +40,7 @@ ShadowBuffer::ShadowBuffer(const QSize &size, const GbmFormat &format)
 {
     m_texture.reset(new GLTexture(internalFormat(format), size));
     m_texture->setFilter(GL_NEAREST);
+    m_texture->setYInverted(true);
 
     m_renderTarget.reset(new GLRenderTarget(m_texture.data()));
     if (!m_renderTarget->valid()) {