Merge brad/2549-downrez-controls into release/2024.09-ExtraFPS (#2864)

1 files changed, 9 insertions, 3 deletions

diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp
index eaee59d92c..91437b98d1 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.
@@ -3710,6 +3712,10 @@ S32 OSMessageBoxWin32(const std::string& text, const std::string& caption, U32 t
     //
     // "This is why I'm doing it this way, instead of what you would think would be more obvious..."
     // (C) Nat Goodspeed
+    if (!IsWindow(sWindowHandleForMessageBox))
+    {
+        sWindowHandleForMessageBox = NULL;
+    }
     int retval_win = MessageBoxW(sWindowHandleForMessageBox, // HWND
                                  ll_convert_string_to_wide(text).c_str(),
                                  ll_convert_string_to_wide(caption).c_str(),