fix iOS text input and export ppbr

PanoPainter/GameViewController.m

@@ -211,11 +211,14 @@ std::recursive_mutex lock_mutex;
 
 - (void)insertText:(NSString *)text
 {
-    if (const char* cstr = [text cStringUsingEncoding:NSASCIIStringEncoding])
+    if (const char* cstr = [text cStringUsingEncoding:NSISOLatin1StringEncoding])
+    {
+        char c = cstr[0];
         App::I->ui_task_async([=]
         {
-            App::I->key_char(cstr[0]);
+            App::I->key_char(c);
         });
+    }
     NSLog(@"%@", text);
     // Do something with the typed character
 }
@@ -491,7 +494,7 @@ std::set<UITouch*> ignored_touch;
     view.drawableDepthFormat = GLKViewDrawableDepthFormat24;
     view.enableSetNeedsDisplay = NO;
     glview = view;
-
+    
     App::I->width = view.frame.size.width * view.contentScaleFactor;
     App::I->height = view.frame.size.height * view.contentScaleFactor;
     App::I->zoom = Settings::value_or<Serializer::Float>("ui-scale", (float)view.contentScaleFactor);