From 76c8a7ff0b57e7856613960391be7c400384183b Mon Sep 17 00:00:00 2001
From: Mnikolenko ProductEngine <mnikolenko@productengine.com>
Date: Wed, 8 Jun 2022 03:15:59 +0300
Subject: [PATCH] SL-17541 show the message on mac

---
 indra/llwindow/llwindowmacosx.cpp      | 2 ++
 indra/newview/llfloaterperformance.cpp | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/indra/llwindow/llwindowmacosx.cpp b/indra/llwindow/llwindowmacosx.cpp
index bc4f07941b2..b3616e4ea8a 100644
--- a/indra/llwindow/llwindowmacosx.cpp
+++ b/indra/llwindow/llwindowmacosx.cpp
@@ -660,6 +660,8 @@ BOOL LLWindowMacOSX::createContext(int x, int y, int width, int height, int bits
 		}
 	}
 
+    mRefreshRate = CGDisplayModeGetRefreshRate(CGDisplayCopyDisplayMode(mDisplay));
+
 	// Disable vertical sync for swap
     toggleVSync(enable_vsync);
 
diff --git a/indra/newview/llfloaterperformance.cpp b/indra/newview/llfloaterperformance.cpp
index ecacadee3e7..0ef9ab32155 100644
--- a/indra/newview/llfloaterperformance.cpp
+++ b/indra/newview/llfloaterperformance.cpp
@@ -416,7 +416,8 @@ void LLFloaterPerformance::setFPSText()
 
     std::string fps_text = getString("fps_text");
     static LLCachedControl<bool> vsync_enabled(gSavedSettings, "RenderVSyncEnable", true);
-    if (vsync_enabled && (current_fps >= gViewerWindow->getWindow()->getRefreshRate()))
+    S32 refresh_rate = gViewerWindow->getWindow()->getRefreshRate();
+    if (vsync_enabled && (refresh_rate > 0) && (current_fps >= refresh_rate))
     {
         fps_text += getString("max_text");
     }
-- 
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