From 1ab7a260ebd670de73e6ee0ad6f60456a0a18244 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Tue, 18 Sep 2012 22:24:40 -0700
Subject: [PATCH] User interface guidelines says that you shouldn't allow
 upside-down orientation on phones.

---
 src/video/uikit/SDL_uikitviewcontroller.m | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/video/uikit/SDL_uikitviewcontroller.m b/src/video/uikit/SDL_uikitviewcontroller.m
index 8c21e6f32..b42c09a97 100755
--- a/src/video/uikit/SDL_uikitviewcontroller.m
+++ b/src/video/uikit/SDL_uikitviewcontroller.m
@@ -48,6 +48,12 @@
 
 - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)orient
 {
+    // Don't allow upside-down orientation on the phone, so answering calls is in the natural orientation
+    if (orient == UIInterfaceOrientationPortraitUpsideDown) {
+        if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone)
+            return NO;
+    }
+
     const char *orientationsCString;
     if ((orientationsCString = SDL_GetHint(SDL_HINT_ORIENTATIONS)) != NULL) {
         BOOL rotate = NO;