1 files changed, 69 insertions, 0 deletions
diff --git a/src/signalProcessing/ifft/ifft_internal.h b/src/signalProcessing/ifft/ifft_internal.h
new file mode 100644
index 00000000..d5d22782
--- /dev/null
+++ b/src/signalProcessing/ifft/ifft_internal.h
@@ -0,0 +1,69 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ *  This file must be used under the terms of the CeCILL.
+ *  This source file is licensed as described in the file COPYING, which
+ *  you should have received as part of this distribution.  The terms
+ *  are also available at
+ *  http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#ifndef __IFFT_INTERNAL_H__
+#define __IFFT_INTERNAL_H__
+
+
+#include "addition.h"
+#include "subtraction.h"
+
+#define FORWARD	0
+#define INVERSE 1
+void difft2 ( double* a , double* b , int nseg , int n , int nspn ,
+             int isn , int ierr);
+
+
+
+void difftbi ( double* a , double* b , int nseg , int n , int nspn ,
+              int isn , int ierr );
+
+void ifft842 (doubleComplex* b, int size , int in);
+
+void ir2tx(int nthpo, doubleComplex* c0, doubleComplex* c1);
+void ir4tx( int nthpo, doubleComplex* c0, doubleComplex* c1, doubleComplex* c2, doubleComplex* c3);
+void ir8tx ( int nxtlt,int nthpo,int lengt,
+            doubleComplex* cc0,doubleComplex* cc1,doubleComplex* cc2,doubleComplex* cc3,
+            doubleComplex* cc4,doubleComplex* cc5,doubleComplex* cc6,doubleComplex* cc7);
+
+int difftmx ( double* _pdblA , double* _pdblB , int _iNtot, int _iN, int _iNspan,
+             int _iIsn, int _iM, int _iKt, double* _pdblWt, double* _pdblCk,
+             double* _pdblBt, double* _pdblSk, int* _piNp, int* _piNfac);
+
+/* under functions used by dfftmx */
+   void preliminaryWork (void);
+   void preliminaryWork (void);
+   void permute_stage1 (void);
+   void permute_stage2 (void);
+   void f4t_150 (void);
+   void factorOf3Transform (void) ;
+   void factorOf5Transform (void) ;
+   void preFOtherTransform (void);
+   void factorOfOtherTransform (void);
+   void pre_sqFactor2NormlOrder (void);
+   void nonSqFactor2NormOrder (void) ;
+   void detPermutCycles (void);
+   void reorderMatrix (void ) ;
+
+   int f4t_170 (void);
+   int factorTransform (void);
+   int pre_fOf2Trans (void);
+   int factorOf2Transform (void);
+   int factorOf4Transform (void);
+   int  mulByRotationFactor (void );
+   int  post_sqFactor2NormlOrder (void);
+   void  single_sqFactor2NormlOrder (void);
+   int  preF2transform (void) ;
+   int  multi_sqFactor2NormlOrder (void);
+/*   int  end (void) ;*/
+
+#endif /* !__IFFT_INTERNAL_H__ */