From 0f1da589ebc90d7436d4f6e8a418be76c10258c6 Mon Sep 17 00:00:00 2001
From: Aki Sakurai <kde@aki.tw>
Date: Thu, 28 Sep 2023 23:50:32 +0800
Subject: [PATCH] fix segfault in  EglGbmBackend::textureForOutput

---
 src/backends/drm/drm_egl_backend.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/backends/drm/drm_egl_backend.cpp b/src/backends/drm/drm_egl_backend.cpp
index 7bcf36e217..6e7f700d54 100644
--- a/src/backends/drm/drm_egl_backend.cpp
+++ b/src/backends/drm/drm_egl_backend.cpp
@@ -167,6 +167,9 @@ OutputLayer *EglGbmBackend::cursorLayer(Output *output)
 std::pair<std::shared_ptr<KWin::GLTexture>, ColorDescription> EglGbmBackend::textureForOutput(Output *output) const
 {
     const auto drmOutput = static_cast<DrmAbstractOutput *>(output);
+    if (const auto virtualLayer = dynamic_cast<VirtualEglGbmLayer *>(drmOutput->primaryLayer())) {
+        return std::make_pair(virtualLayer->texture(), ColorDescription::sRGB);
+    }
     const auto layer = static_cast<EglGbmLayer *>(drmOutput->primaryLayer());
     return std::make_pair(layer->texture(), layer->colorDescription());
 }