From bacc35c236dc5e09c7fc30631c2d2e1b008fe19f Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Date: Thu, 9 Mar 2023 16:10:20 +0200
Subject: [PATCH] backends/virtual: Provide vertically mirrored layer buffers

This makes the behavior of the virtual backend more consistent with
wayland, x11, and drm backends. However, the main advantage is that it's
more nicer to memfd fallback code path in screencasting plugin.
---
 src/backends/virtual/virtual_egl_backend.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/backends/virtual/virtual_egl_backend.cpp b/src/backends/virtual/virtual_egl_backend.cpp
index d43b6221fd..e016d6d48d 100644
--- a/src/backends/virtual/virtual_egl_backend.cpp
+++ b/src/backends/virtual/virtual_egl_backend.cpp
@@ -46,6 +46,7 @@ std::optional<OutputLayerBeginFrameInfo> VirtualEglLayer::beginFrame()
     if (!m_texture || m_texture->size() != nativeSize) {
         m_fbo.reset();
         m_texture = std::make_unique<GLTexture>(GL_RGB8, nativeSize);
+        m_texture->setContentTransform(TextureTransform::MirrorY);
         m_fbo = std::make_unique<GLFramebuffer>(m_texture.get());
     }