r7939: Initial working version of fftw3 conversion -- tested only with pjrec

[ctsim.git] / include / fourier.h

diff --git a/include/fourier.h b/include/fourier.h
index b956fcc15b7ab5859cbff429590f3c7ac62c33b0..5215a3a25928ad645869be3c2eeadba9e9b2d875 100644 (file)
--- a/include/fourier.h
+++ b/include/fourier.h
@@ -9,7 +9,7 @@
 **  This is part of the CTSim program
 **  Copyright (c) 1983-2001 Kevin Rosenberg
 **
-**  $Id: fourier.h,v 1.7 2001/03/21 21:45:31 kevin Exp $
+**  $Id$
 **
 **  This program is free software; you can redistribute it and/or modify
 **  it under the terms of the GNU General Public License (version 2) as
@@ -26,6 +26,9 @@
 ******************************************************************************/
 
 #include <complex>
+#ifdef HAVE_FFTW
+#include <fftw3.h>
+#endif
 
 class ImageFile;
 
@@ -34,6 +37,11 @@ public:
     static void shuffleFourierToNaturalOrder (ImageFile& im);
     static void shuffleNaturalToFourierOrder (ImageFile& im);
 
+#ifdef HAVE_FFTW
+    static void shuffleFourierToNaturalOrder (fftw_complex* pc, const int n);
+    static void shuffleNaturalToFourierOrder (fftw_complex* pc, const int n);
+#endif
+    
 // Odd Number of Points
 //   Natural Frequency Order: -(n-1)/2...-1,0,1...(n-1)/2
 //   Fourier Frequency Order: 0, 1..(n-1)/2,-(n-1)/2...-1