*** MacOSXCGLContext.java.repo	2012-03-15 15:23:08.000000000 -0400
--- MacOSXCGLContext.java	2012-03-18 10:23:03.000000000 -0400
***************
*** 396,401 ****
--- 396,402 ----
    class NSOpenGLImpl implements GLBackendImpl {
      long nsOpenGLLayer = 0;
      long nsOpenGLLayerPFmt = 0;
+     int vsyncTimeout = 16;
      
      public boolean isNSContext() { return true; }
  
***************
*** 555,567 ****
          CGL.setNSOpenGLLayerSwapInterval(nsOpenGLLayer, interval);
        }
        CGL.setSwapInterval(contextHandle, interval);
        return true;
      }
      
      public boolean swapBuffers() {
!       if(0 != nsOpenGLLayer) {
          // sync w/ CALayer renderer - wait until next frame is required (v-sync)
!         CGL.waitUntilNSOpenGLLayerIsReady(nsOpenGLLayer, 16); // timeout 16ms -> 60Hz
        }
        if(CGL.flushBuffer(contextHandle)) {
            if(0 != nsOpenGLLayer) {
--- 556,577 ----
          CGL.setNSOpenGLLayerSwapInterval(nsOpenGLLayer, interval);
        }
        CGL.setSwapInterval(contextHandle, interval);
+       if (interval == 0) {
+         // v-sync is disabled, frames were drawn as quickly as possible without adding any
+         // timeout delay.
+         vsyncTimeout = 0;
+       } else {
+         // v-sync is enabled. Swaping interval of 1 means a 
+         // timeout of 16ms -> 60Hz, 60fps
+         vsyncTimeout = interval * 16;
+       }      
        return true;
      }
      
      public boolean swapBuffers() {
!       if(0 != nsOpenGLLayer && 0 < vsyncTimeout) {
          // sync w/ CALayer renderer - wait until next frame is required (v-sync)
!         CGL.waitUntilNSOpenGLLayerIsReady(nsOpenGLLayer, vsyncTimeout); 
        }
        if(CGL.flushBuffer(contextHandle)) {
            if(0 != nsOpenGLLayer) {