From http://www.jwz.org/xscreensaver/xscreensaver-5.30.tar.gz

[xscreensaver] / OSX / XScreenSaverView.h

diff --git a/OSX/XScreenSaverView.h b/OSX/XScreenSaverView.h
index fe568efe5facb733367afbb7134ca609195e3937..b54685079a2ac9ca36ceb221da324da9e6a38867 100644 (file)
--- a/OSX/XScreenSaverView.h
+++ b/OSX/XScreenSaverView.h
@@ -1,13 +1,13 @@
-/* xscreensaver, Copyright (c) 2006-2013 Jamie Zawinski <jwz@jwz.org>
-*
-* Permission to use, copy, modify, distribute, and sell this software and its
-* documentation for any purpose is hereby granted without fee, provided that
-* the above copyright notice appear in all copies and that both that
-* copyright notice and this permission notice appear in supporting
-* documentation.  No representations are made about the suitability of this
-* software for any purpose.  It is provided "as is" without express or 
-* implied warranty.
-*/
+/* xscreensaver, Copyright (c) 2006-2014 Jamie Zawinski <jwz@jwz.org>
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation.  No representations are made about the suitability of this
+ * software for any purpose.  It is provided "as is" without express or 
+ * implied warranty.
+ */
 
 /* This is a subclass of Apple's ScreenSaverView that knows how to run
    xscreensaver programs without X11 via the dark magic of the "jwxyz"
@@ -53,7 +53,10 @@
 
 
 #define USE_BACKBUFFER  // must be in sync with jwxyz.m
-#define USE_CALAYER     // requires USE_BACKBUFFER; required by iOS.
+
+// If USE_BACKBUFFER is enabled, one of these must also be enabled.
+// #define BACKBUFFER_CGCONTEXT   // Not supported by iOS.
+#define BACKBUFFER_CALAYER
 
 @interface XScreenSaverView : ScreenSaverView
 # ifdef USE_IPHONE
@@ -76,8 +79,6 @@
 
 # ifdef USE_IPHONE
   UIDeviceOrientation orientation, new_orientation;
-  double tap_time;
-  CGPoint tap_point;
   BOOL screenLocked;
 
   CGSize initial_bounds;
@@ -102,7 +103,7 @@
   CGSize backbuffer_size;
   CGColorSpaceRef colorspace;
 
-#  ifndef USE_CALAYER
+#  ifdef BACKBUFFER_CGCONTEXT
   CGContextRef window_ctx;
 #  endif