From 4e404fadf9a636615bfc52d65e0b50f14ea0759c Mon Sep 17 00:00:00 2001
From: Brad Linden <brad@lindenlab.com>
Date: Wed, 18 Sep 2024 14:08:58 -0700
Subject: [PATCH] Avoid LL_ERRS when wgl_ARB_pixel_format is not supported

secondlife/viewer#2599
---
 indra/llwindow/llwindowwin32.cpp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp
index eaee59d92c1..447ccc9671e 100644
--- a/indra/llwindow/llwindowwin32.cpp
+++ b/indra/llwindow/llwindowwin32.cpp
@@ -1630,9 +1630,11 @@ const   S32   max_format  = (S32)num_formats - 1;
     }
     else
     {
-        LLError::LLUserWarningMsg::show(mCallbacks->translateString("MBVideoDrvErr"));
-        // mWindowHandle is 0, going to crash either way
-        LL_ERRS("Window") << "No wgl_ARB_pixel_format extension!" << LL_ENDL;
+        LL_WARNS("Window") << "No wgl_ARB_pixel_format extension!" << LL_ENDL;
+        // cannot proceed without wgl_ARB_pixel_format extension, shutdown same as any other gGLManager.initGL() failure
+        OSMessageBox(mCallbacks->translateString("MBVideoDrvErr"), mCallbacks->translateString("MBError"), OSMB_OK);
+        close();
+        return false;
     }
 
     // Verify what pixel format we actually received.