From 32adef4efc22afa18be5b8f3858f2f8dd36bbc67 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Sun, 22 Jun 2014 01:33:25 +0300
Subject: Fix vsync option on non windows systems with Nvidia closed source
 driver.

---
 src/client.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'src/client.cpp')

diff --git a/src/client.cpp b/src/client.cpp
index 52d18477f..1ec0c683d 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -507,6 +507,21 @@ void Client::updateEnv()
         setEnv("SDL_VIDEO_ALLOW_SCREENSAVER", "1");
     else
         setEnv("SDL_VIDEO_ALLOW_SCREENSAVER", "0");
+
+#ifndef WIN32
+    const int vsync = config.getIntValue("vsync");
+    switch (vsync)
+    {
+        case 1:
+            Client::setEnv("__GL_SYNC_TO_VBLANK", "0");
+            break;
+        case 2:
+            Client::setEnv("__GL_SYNC_TO_VBLANK", "1");
+            break;
+        default:
+            break;
+    }
+#endif
 }
 
 void Client::initGraphics()
-- 
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