From dc9e32caeda0278658befb8bb6e944986c021620 Mon Sep 17 00:00:00 2001
From: Laszlo Agocs <laszlo.agocs@digia.com>
Date: Thu, 28 Nov 2013 22:39:56 +0100
Subject: [PATCH] cocoa: Use swapInterval from QSurfaceFormat

xcb and windows already do this. The default value is 1 so the
behavior on cocoa does not change when setSwapInterval() is not
called.

Task-number: QTBUG-31939
Change-Id: Id9d9204c9324f1cc187c6aee4286e7da42583759
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
---
 src/plugins/platforms/cocoa/qcocoaglcontext.mm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/plugins/platforms/cocoa/qcocoaglcontext.mm b/src/plugins/platforms/cocoa/qcocoaglcontext.mm
index 144144338f..ba204236ee 100644
--- a/src/plugins/platforms/cocoa/qcocoaglcontext.mm
+++ b/src/plugins/platforms/cocoa/qcocoaglcontext.mm
@@ -143,7 +143,7 @@ QCocoaGLContext::QCocoaGLContext(const QSurfaceFormat &format, QPlatformOpenGLCo
 
     [pixelFormat release];
 
-    const GLint interval = 1;
+    const GLint interval = format.swapInterval() >= 0 ? format.swapInterval() : 1;
     [m_context setValues:&interval forParameter:NSOpenGLCPSwapInterval];
 
     if (format.alphaBufferSize() > 0) {