From 472a1cf63b98b398a0862c8d7b4acb59f169adbf Mon Sep 17 00:00:00 2001
From: Adeeb Shihadeh <adeebshihadeh@gmail.com>
Date: Thu, 11 May 2023 15:22:09 -0700
Subject: [PATCH] ui: catch silent EGL failure (#28169)

Co-authored-by: Comma Device <device@comma.ai>
old-commit-hash: 432f316e8df9fd614f784f0b5b3b445d14cc5f8e
---
 selfdrive/ui/qt/qt_window.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/selfdrive/ui/qt/qt_window.cc b/selfdrive/ui/qt/qt_window.cc
index d630b560bb..b83db70671 100644
--- a/selfdrive/ui/qt/qt_window.cc
+++ b/selfdrive/ui/qt/qt_window.cc
@@ -19,6 +19,10 @@ void setMainWindow(QWidget *w) {
   wl_surface_set_buffer_transform(s, WL_OUTPUT_TRANSFORM_270);
   wl_surface_commit(s);
   w->showFullScreen();
+
+  // ensure we have a valid eglDisplay, otherwise the ui will silently fail
+  void *egl = native->nativeResourceForWindow("egldisplay", w->windowHandle());
+  assert(egl != nullptr);
 #endif
 }