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-rw-r--r--indra/llwindow/llwindowmacosx.cpp7
1 files changed, 7 insertions, 0 deletions
diff --git a/indra/llwindow/llwindowmacosx.cpp b/indra/llwindow/llwindowmacosx.cpp
index 66f7e60371..74878df781 100644
--- a/indra/llwindow/llwindowmacosx.cpp
+++ b/indra/llwindow/llwindowmacosx.cpp
@@ -49,6 +49,8 @@ BOOL gHiDPISupport = TRUE;
const S32 BITS_PER_PIXEL = 32;
const S32 MAX_NUM_RESOLUTIONS = 32;
+const S32 DEFAULT_REFRESH_RATE = 60;
+
namespace
{
NSKeyEventRef mRawKeyEvent = NULL;
@@ -661,6 +663,11 @@ BOOL LLWindowMacOSX::createContext(int x, int y, int width, int height, int bits
}
mRefreshRate = CGDisplayModeGetRefreshRate(CGDisplayCopyDisplayMode(mDisplay));
+ if(mRefreshRate == 0)
+ {
+ //consider adding more appropriate fallback later
+ mRefreshRate = DEFAULT_REFRESH_RATE;
+ }
// Disable vertical sync for swap
toggleVSync(enable_vsync);