From 3ac21ebbf6b354e16ead2d095a61152c95a7243c Mon Sep 17 00:00:00 2001
From: Mnikolenko Productengine <mnikolenko@productengine.com>
Date: Fri, 17 Dec 2021 13:07:23 +0200
Subject: SL-16454 FIXED Performance viewer login screen is black

---
 indra/llwindow/llwindowwin32.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/indra/llwindow/llwindowwin32.cpp b/indra/llwindow/llwindowwin32.cpp
index 0064ee26d2..e4d771978a 100644
--- a/indra/llwindow/llwindowwin32.cpp
+++ b/indra/llwindow/llwindowwin32.cpp
@@ -427,6 +427,9 @@ LLWindowWin32::LLWindowWin32(LLWindowCallbacks* callbacks,
 	memset(mPrevGammaRamp, 0, sizeof(mPrevGammaRamp));
 	mCustomGammaSet = FALSE;
 	mWindowHandle = NULL;
+
+    mRect = {0, 0, 0, 0};
+    mClientRect = {0, 0, 0, 0};
 	
 	if (!SystemParametersInfo(SPI_GETMOUSEVANISH, 0, &mMouseVanish, 0))
 	{
@@ -1506,6 +1509,16 @@ const	S32   max_format  = (S32)num_formats - 1;
 		}
 
 		recreateWindow(window_rect, dw_ex_style, dw_style);
+        
+        RECT rect;
+        RECT client_rect;
+        //initialize immediately on main thread
+        if (GetWindowRect(mWindowHandle, &rect) &&
+            GetClientRect(mWindowHandle, &client_rect))
+        {
+            mRect = rect;
+            mClientRect = client_rect;
+        };
 
 		if (mWindowHandle)
 		{
-- 
cgit v1.2.3