Added fading to Cocoa display mode setting.

src/cocoa_monitor.m

@@ -127,6 +127,29 @@ static GLFWvidmode vidmodeFromCGDisplayMode(CGDisplayModeRef mode)
 //////                       GLFW internal API                      //////
 //////////////////////////////////////////////////////////////////////////
 
+// Starts reservation for display fading
+//
+CGDisplayFadeReservationToken _glfwBeginFadeReservation(void)
+{
+    CGDisplayFadeReservationToken token = kCGDisplayFadeReservationInvalidToken;
+
+    if (CGAcquireDisplayFadeReservation(5, &token) == kCGErrorSuccess)
+        CGDisplayFade(token, 0.3, kCGDisplayBlendNormal, kCGDisplayBlendSolidColor, 0.0, 0.0, 0.0, TRUE);
+
+    return token;
+}
+
+// Ends reservation for display fading
+//
+void _glfwEndFadeReservation(CGDisplayFadeReservationToken token)
+{
+    if (token != kCGDisplayFadeReservationInvalidToken)
+    {
+        CGDisplayFade(token, 0.5, kCGDisplayBlendSolidColor, kCGDisplayBlendNormal, 0.0, 0.0, 0.0, FALSE);
+        CGReleaseDisplayFadeReservation(token);
+    }
+}
+
 // Change the current video mode
 //
 GLboolean _glfwSetVideoMode(_GLFWmonitor* monitor, int* width, int* height, int* bpp)
@@ -182,9 +205,13 @@ GLboolean _glfwSetVideoMode(_GLFWmonitor* monitor, int* width, int* height, int*
 
     monitor->ns.previousMode = CGDisplayCopyDisplayMode(monitor->ns.displayID);
 
+    CGDisplayFadeReservationToken token = _glfwBeginFadeReservation();
+
     CGDisplayCapture(monitor->ns.displayID);
     CGDisplaySetDisplayMode(monitor->ns.displayID, bestMode, NULL);
 
+    _glfwEndFadeReservation(token);
+
     CFRelease(modes);
     return GL_TRUE;
 }
@@ -193,8 +220,12 @@ GLboolean _glfwSetVideoMode(_GLFWmonitor* monitor, int* width, int* height, int*
 //
 void _glfwRestoreVideoMode(_GLFWmonitor* monitor)
 {
+    CGDisplayFadeReservationToken token = _glfwBeginFadeReservation();
+
     CGDisplaySetDisplayMode(monitor->ns.displayID, monitor->ns.previousMode, NULL);
     CGDisplayRelease(monitor->ns.displayID);
+
+    _glfwEndFadeReservation(token);
 }
 
 

src/cocoa_window.m

@@ -770,9 +770,11 @@ void _glfwPlatformDestroyWindow(_GLFWwindow* window)
 
     if (window->monitor)
     {
-        [[window->ns.object contentView] exitFullScreenModeWithOptions:nil];
-
         _glfwRestoreVideoMode(window->monitor);
+
+        // Exit full screen after the video restore to avoid a nasty display
+        // flickering during the fade.
+        [[window->ns.object contentView] exitFullScreenModeWithOptions:nil];
     }
 
     _glfwDestroyContext(window);