From http://www.jwz.org/xscreensaver/xscreensaver-5.32.tar.gz

[xscreensaver] / OSX / XScreenSaverView.h

diff --git a/OSX/XScreenSaverView.h b/OSX/XScreenSaverView.h
index 28d1f51fab258d6647b17dfd5d63db6a801736d2..c60dfc8a1129a8f2a2f22a24387b81d1d261f78c 100644 (file)
--- a/OSX/XScreenSaverView.h
+++ b/OSX/XScreenSaverView.h
@@ -81,17 +81,17 @@
   UIDeviceOrientation orientation, new_orientation;
   BOOL screenLocked;
 
-  CGSize initial_bounds;       // portrait-mode geometry
+  CGSize initial_bounds;       // portrait-mode size (pixels, not points).
        
-  GLfloat rotation_ratio;      // ratio thru rotation anim, or -1
-  NSSize rot_from, rot_to;     // start size rect, end size rect
-  GLfloat angle_from, angle_to;        // start angle, end angle
+  GLfloat rotation_ratio;      // ratio [0-1] thru rotation anim, or -1
+  NSSize rot_current_size;     // intermediate or at-rest orientation.
+  NSSize rot_from, rot_to;     // start/end size rect (pixels, not points)
+  GLfloat rot_current_angle;   // only right angles when rotation complete.
+  GLfloat angle_from, angle_to;        // start angle, end angle (degrees)
   double rot_start_time;
-  BOOL ignore_rotation_p;      // hack requests "always portrait".
-                               // some want this, some do not.
 
-  NSSize rot_current_size;     // current intermediate or final orientation.
-  GLfloat rot_current_angle;   // only right angles when rotation complete.
+  BOOL ignore_rotation_p;      // whether hack requested "always portrait".
+                               // some want this, some do not.
 
   NSTimer *crash_timer;
 
@@ -101,7 +101,7 @@
 
 # ifdef USE_BACKBUFFER
   CGContextRef backbuffer;
-  CGSize backbuffer_size;
+  CGSize backbuffer_size;      // pixels, not points.
   CGColorSpaceRef colorspace;
 
 #  ifdef BACKBUFFER_CGCONTEXT