add fftshift functions,header and interface

22 files changed, 1742 insertions, 3 deletions

diff --git a/src/configure b/src/configure
index 9d0f0d07..f7807b3f 100755
--- a/src/configure
+++ b/src/configure
@@ -22149,7 +22149,7 @@ fi
 #operations/multiplication/Makefile
 #operations/division/Makefile
 
-ac_config_files="$ac_config_files Makefile lib/blas/Makefile lib/lapack/Makefile type/Makefile operations/Makefile operations/addition/Makefile operations/subtraction/Makefile operations/division/Makefile operations/multiplication/Makefile matrixOperations/Makefile matrixOperations/multiplication/Makefile matrixOperations/division/Makefile matrixOperations/cat/Makefile matrixOperations/transpose/Makefile matrixOperations/trace/Makefile matrixOperations/hilbert/Makefile matrixOperations/expm/Makefile matrixOperations/eye/Makefile matrixOperations/ones/Makefile matrixOperations/infiniteNorm/Makefile matrixOperations/inversion/Makefile matrixOperations/jmat/Makefile matrixOperations/chol/Makefile matrixOperations/determ/Makefile matrixOperations/dist/Makefile matrixOperations/fill/Makefile matrixOperations/magnitude/Makefile matrixOperations/squaredMagnitude/Makefile matrixOperations/logm/Makefile matrixOperations/powm/Makefile matrixOperations/zeros/Makefile matrixOperations/spec/Makefile matrixOperations/spec2/Makefile implicitList/Makefile elementaryFunctions/Makefile elementaryFunctions/cos/Makefile elementaryFunctions/cosh/Makefile elementaryFunctions/acos/Makefile elementaryFunctions/acosh/Makefile elementaryFunctions/sin/Makefile elementaryFunctions/sinh/Makefile elementaryFunctions/asin/Makefile elementaryFunctions/asinh/Makefile elementaryFunctions/tan/Makefile elementaryFunctions/tanh/Makefile elementaryFunctions/atan/Makefile elementaryFunctions/atan2/Makefile elementaryFunctions/atanh/Makefile elementaryFunctions/log/Makefile elementaryFunctions/log1p/Makefile elementaryFunctions/log10/Makefile elementaryFunctions/exp/Makefile elementaryFunctions/exp10/Makefile elementaryFunctions/sqrt/Makefile elementaryFunctions/lnp1m1/Makefile elementaryFunctions/pow/Makefile auxiliaryFunctions/Makefile auxiliaryFunctions/abs/Makefile auxiliaryFunctions/find/Makefile auxiliaryFunctions/find2d/Makefile auxiliaryFunctions/frexp/Makefile auxiliaryFunctions/isempty/Makefile auxiliaryFunctions/isnan/Makefile auxiliaryFunctions/rand/Makefile auxiliaryFunctions/sign/Makefile auxiliaryFunctions/size/Makefile auxiliaryFunctions/length/Makefile auxiliaryFunctions/type/Makefile auxiliaryFunctions/pythag/Makefile auxiliaryFunctions/conj/Makefile statisticsFunctions/Makefile statisticsFunctions/mean/Makefile statisticsFunctions/prod/Makefile statisticsFunctions/sum/Makefile statisticsFunctions/variance/Makefile statisticsFunctions/max/Makefile statisticsFunctions/min/Makefile string/Makefile string/disp/Makefile string/string/Makefile signalProcessing/Makefile signalProcessing/fft/Makefile signalProcessing/ifft/Makefile signalProcessing/levin/Makefile signalProcessing/conv/Makefile signalProcessing/conv2d/Makefile signalProcessing/hilbert/Makefile signalProcessing/crossCorr/Makefile signalProcessing/lpc2cep/Makefile signalProcessing/lev/Makefile"
+ac_config_files="$ac_config_files Makefile lib/blas/Makefile lib/lapack/Makefile type/Makefile operations/Makefile operations/addition/Makefile operations/subtraction/Makefile operations/division/Makefile operations/multiplication/Makefile matrixOperations/Makefile matrixOperations/multiplication/Makefile matrixOperations/division/Makefile matrixOperations/cat/Makefile matrixOperations/transpose/Makefile matrixOperations/trace/Makefile matrixOperations/hilbert/Makefile matrixOperations/expm/Makefile matrixOperations/eye/Makefile matrixOperations/ones/Makefile matrixOperations/infiniteNorm/Makefile matrixOperations/inversion/Makefile matrixOperations/jmat/Makefile matrixOperations/chol/Makefile matrixOperations/determ/Makefile matrixOperations/dist/Makefile matrixOperations/fill/Makefile matrixOperations/magnitude/Makefile matrixOperations/squaredMagnitude/Makefile matrixOperations/logm/Makefile matrixOperations/powm/Makefile matrixOperations/zeros/Makefile matrixOperations/spec/Makefile matrixOperations/spec2/Makefile implicitList/Makefile elementaryFunctions/Makefile elementaryFunctions/cos/Makefile elementaryFunctions/cosh/Makefile elementaryFunctions/acos/Makefile elementaryFunctions/acosh/Makefile elementaryFunctions/sin/Makefile elementaryFunctions/sinh/Makefile elementaryFunctions/asin/Makefile elementaryFunctions/asinh/Makefile elementaryFunctions/tan/Makefile elementaryFunctions/tanh/Makefile elementaryFunctions/atan/Makefile elementaryFunctions/atan2/Makefile elementaryFunctions/atanh/Makefile elementaryFunctions/log/Makefile elementaryFunctions/log1p/Makefile elementaryFunctions/log10/Makefile elementaryFunctions/exp/Makefile elementaryFunctions/exp10/Makefile elementaryFunctions/sqrt/Makefile elementaryFunctions/lnp1m1/Makefile elementaryFunctions/pow/Makefile auxiliaryFunctions/Makefile auxiliaryFunctions/abs/Makefile auxiliaryFunctions/find/Makefile auxiliaryFunctions/find2d/Makefile auxiliaryFunctions/frexp/Makefile auxiliaryFunctions/isempty/Makefile auxiliaryFunctions/isnan/Makefile auxiliaryFunctions/rand/Makefile auxiliaryFunctions/sign/Makefile auxiliaryFunctions/size/Makefile auxiliaryFunctions/length/Makefile auxiliaryFunctions/type/Makefile auxiliaryFunctions/pythag/Makefile auxiliaryFunctions/conj/Makefile statisticsFunctions/Makefile statisticsFunctions/mean/Makefile statisticsFunctions/prod/Makefile statisticsFunctions/sum/Makefile statisticsFunctions/variance/Makefile statisticsFunctions/max/Makefile statisticsFunctions/min/Makefile string/Makefile string/disp/Makefile string/string/Makefile signalProcessing/Makefile signalProcessing/fft/Makefile signalProcessing/ifft/Makefile signalProcessing/levin/Makefile signalProcessing/conv/Makefile signalProcessing/conv2d/Makefile signalProcessing/hilbert/Makefile signalProcessing/crossCorr/Makefile signalProcessing/lpc2cep/Makefile signalProcessing/lev/Makefile signalProcessing/fftshift/Makefile"
 
 
 
@@ -22850,6 +22850,7 @@ do
     "signalProcessing/crossCorr/Makefile") CONFIG_FILES="$CONFIG_FILES signalProcessing/crossCorr/Makefile" ;;
     "signalProcessing/lpc2cep/Makefile") CONFIG_FILES="$CONFIG_FILES signalProcessing/lpc2cep/Makefile" ;;
     "signalProcessing/lev/Makefile") CONFIG_FILES="$CONFIG_FILES signalProcessing/lev/Makefile" ;;
+    "signalProcessing/fftshift/Makefile") CONFIG_FILES="$CONFIG_FILES signalProcessing/fftshift/Makefile" ;;
 
   *) { { echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
 echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
diff --git a/src/configure.ac b/src/configure.ac
index 01c6cab1..d24d8aab 100644
--- a/src/configure.ac
+++ b/src/configure.ac
@@ -246,6 +246,7 @@ signalProcessing/hilbert/Makefile
 signalProcessing/crossCorr/Makefile
 signalProcessing/lpc2cep/Makefile
 signalProcessing/lev/Makefile
+signalProcessing/fftshift/Makefile
 ])
 
 
diff --git a/src/signalProcessing/Makefile.am b/src/signalProcessing/Makefile.am
index 775ac3e5..8148f2a4 100644
--- a/src/signalProcessing/Makefile.am
+++ b/src/signalProcessing/Makefile.am
@@ -18,4 +18,5 @@ SUBDIRS= 	fft \
 		hilbert \
 		crossCorr \
 		lpc2cep \
-		lev
+		lev\
+		fftshift
diff --git a/src/signalProcessing/Makefile.in b/src/signalProcessing/Makefile.in
index 8328f1fc..b562a1f8 100644
--- a/src/signalProcessing/Makefile.in
+++ b/src/signalProcessing/Makefile.in
@@ -173,7 +173,8 @@ SUBDIRS = fft \
 		hilbert \
 		crossCorr \
 		lpc2cep \
-		lev
+		lev\
+		fftshift
 
 all: all-recursive
 
diff --git a/src/signalProcessing/fftshift/Makefile.am b/src/signalProcessing/fftshift/Makefile.am
new file mode 100644
index 00000000..f74be23f
--- /dev/null
+++ b/src/signalProcessing/fftshift/Makefile.am
@@ -0,0 +1,68 @@
+##
+##  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+##  Copyright (C) 2008 - INRIA - Arnaud TORSET
+##
+##  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
+##
+##
+
+
+
+
+libFftShift_la_CFLAGS =	-I $(top_builddir)/type \
+				-I $(top_builddir)/signalProcessing/includes
+
+
+instdir = $(top_builddir)/lib
+
+
+pkglib_LTLIBRARIES = libFftShift.la
+
+HEAD = ../includes/fftshift.h 
+
+libFftShift_la_SOURCES = 	$(HEAD) \
+					sfftshifta.c \
+					dfftshifta.c \
+					cfftshifta.c \
+					zfftshifta.c \
+					srowfftshifta.c \
+					drowfftshifta.c \
+					crowfftshifta.c \
+					zrowfftshifta.c \
+					scolumnfftshifta.c \
+					dcolumnfftshifta.c \
+					ccolumnfftshifta.c \
+					zcolumnfftshifta.c
+
+
+###############
+#### Check ####
+###############
+
+check_LDADD =		$(top_builddir)/type/libDoubleComplex.la \
+				$(top_builddir)/type/libFloatComplex.la \
+				libFftShift.la
+			
+
+
+check_INCLUDES =	-I $(top_builddir)/type \
+			-I $(top_builddir)/signalProcessing/includes
+
+check_PROGRAMS = 	testFloatFftShift  testDoubleFftShift
+
+TESTS =		testFloatFftShift       testDoubleFftShift
+
+testDoubleFftShift_SOURCES = testDoubleFftShift.c
+testDoubleFftShift_LDADD = $(check_LDADD)
+testDoubleFftShift_CFLAGS = $(check_INCLUDES)
+
+testFloatFftShift_SOURCES = testFloatFftShift.c
+testFloatFftShift_LDADD = $(check_LDADD)
+testFloatFftShift_CFLAGS = $(check_INCLUDES)
+
+
+
diff --git a/src/signalProcessing/fftshift/Makefile.in b/src/signalProcessing/fftshift/Makefile.in
new file mode 100644
index 00000000..3eef233a
--- /dev/null
+++ b/src/signalProcessing/fftshift/Makefile.in
@@ -0,0 +1,748 @@
+# Makefile.in generated by automake 1.10.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
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+POST_UNINSTALL = :
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+host_triplet = @host@
+check_PROGRAMS = testFloatFftShift$(EXEEXT) \
+	testDoubleFftShift$(EXEEXT)
+TESTS = testFloatFftShift$(EXEEXT) testDoubleFftShift$(EXEEXT)
+subdir = signalProcessing/fftshift
+DIST_COMMON = $(srcdir)/Makefile.am $(srcdir)/Makefile.in
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+pkglibLTLIBRARIES_INSTALL = $(INSTALL)
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+libFftShift_la_LIBADD =
+am__objects_1 =
+am_libFftShift_la_OBJECTS = $(am__objects_1) \
+	libFftShift_la-sfftshifta.lo libFftShift_la-dfftshifta.lo \
+	libFftShift_la-cfftshifta.lo libFftShift_la-zfftshifta.lo \
+	libFftShift_la-srowfftshifta.lo \
+	libFftShift_la-drowfftshifta.lo \
+	libFftShift_la-crowfftshifta.lo \
+	libFftShift_la-zrowfftshifta.lo \
+	libFftShift_la-scolumnfftshifta.lo \
+	libFftShift_la-dcolumnfftshifta.lo \
+	libFftShift_la-ccolumnfftshifta.lo \
+	libFftShift_la-zcolumnfftshifta.lo
+libFftShift_la_OBJECTS = $(am_libFftShift_la_OBJECTS)
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+top_srcdir = @top_srcdir@
+libFftShift_la_CFLAGS = -I $(top_builddir)/type \
+				-I $(top_builddir)/signalProcessing/includes
+
+instdir = $(top_builddir)/lib
+pkglib_LTLIBRARIES = libFftShift.la
+HEAD = ../includes/fftshift.h 
+libFftShift_la_SOURCES = $(HEAD) \
+					sfftshifta.c \
+					dfftshifta.c \
+					cfftshifta.c \
+					zfftshifta.c \
+					srowfftshifta.c \
+					drowfftshifta.c \
+					crowfftshifta.c \
+					zrowfftshifta.c \
+					scolumnfftshifta.c \
+					dcolumnfftshifta.c \
+					ccolumnfftshifta.c \
+					zcolumnfftshifta.c
+
+
+###############
+#### Check ####
+###############
+check_LDADD = $(top_builddir)/type/libDoubleComplex.la \
+				$(top_builddir)/type/libFloatComplex.la \
+				libFftShift.la
+
+check_INCLUDES = -I $(top_builddir)/type \
+			-I $(top_builddir)/signalProcessing/includes
+
+testDoubleFftShift_SOURCES = testDoubleFftShift.c
+testDoubleFftShift_LDADD = $(check_LDADD)
+testDoubleFftShift_CFLAGS = $(check_INCLUDES)
+testFloatFftShift_SOURCES = testFloatFftShift.c
+testFloatFftShift_LDADD = $(check_LDADD)
+testFloatFftShift_CFLAGS = $(check_INCLUDES)
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+
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+	    *$$dep*) \
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+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign  signalProcessing/fftshift/Makefile'; \
+	cd $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign  signalProcessing/fftshift/Makefile
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+	    $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(pkglibLTLIBRARIES_INSTALL) $(INSTALL_STRIP_FLAG) "$$p" "$(DESTDIR)$(pkglibdir)/$$f"; \
+	  else :; fi; \
+	done
+
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+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(pkglibdir)/$$p"; \
+	done
+
+clean-pkglibLTLIBRARIES:
+	-test -z "$(pkglib_LTLIBRARIES)" || rm -f $(pkglib_LTLIBRARIES)
+	@list='$(pkglib_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
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+@am__fastdepCC_TRUE@	mv -f $(DEPDIR)/testDoubleFftShift-testDoubleFftShift.Tpo $(DEPDIR)/testDoubleFftShift-testDoubleFftShift.Po
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+
+testFloatFftShift-testFloatFftShift.o: testFloatFftShift.c
+@am__fastdepCC_TRUE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(testFloatFftShift_CFLAGS) $(CFLAGS) -MT testFloatFftShift-testFloatFftShift.o -MD -MP -MF $(DEPDIR)/testFloatFftShift-testFloatFftShift.Tpo -c -o testFloatFftShift-testFloatFftShift.o `test -f 'testFloatFftShift.c' || echo '$(srcdir)/'`testFloatFftShift.c
+@am__fastdepCC_TRUE@	mv -f $(DEPDIR)/testFloatFftShift-testFloatFftShift.Tpo $(DEPDIR)/testFloatFftShift-testFloatFftShift.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='testFloatFftShift.c' object='testFloatFftShift-testFloatFftShift.o' libtool=no @AMDEPBACKSLASH@
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+
+testFloatFftShift-testFloatFftShift.obj: testFloatFftShift.c
+@am__fastdepCC_TRUE@	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(testFloatFftShift_CFLAGS) $(CFLAGS) -MT testFloatFftShift-testFloatFftShift.obj -MD -MP -MF $(DEPDIR)/testFloatFftShift-testFloatFftShift.Tpo -c -o testFloatFftShift-testFloatFftShift.obj `if test -f 'testFloatFftShift.c'; then $(CYGPATH_W) 'testFloatFftShift.c'; else $(CYGPATH_W) '$(srcdir)/testFloatFftShift.c'; fi`
+@am__fastdepCC_TRUE@	mv -f $(DEPDIR)/testFloatFftShift-testFloatFftShift.Tpo $(DEPDIR)/testFloatFftShift-testFloatFftShift.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	source='testFloatFftShift.c' object='testFloatFftShift-testFloatFftShift.obj' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
+	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
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+	mkid -fID $$unique
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+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
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+	  test -n "$$unique" || unique=$$empty_fix; \
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+	fi
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+	    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+	  done | \
+	  $(AWK) '{ files[$$0] = 1; nonempty = 1; } \
+	      END { if (nonempty) { for (i in files) print i; }; }'`; \
+	test -z "$(CTAGS_ARGS)$$tags$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$tags $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && cd $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) $$here
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+check-TESTS: $(TESTS)
+	@failed=0; all=0; xfail=0; xpass=0; skip=0; ws='[	 ]'; \
+	srcdir=$(srcdir); export srcdir; \
+	list=' $(TESTS) '; \
+	if test -n "$$list"; then \
+	  for tst in $$list; do \
+	    if test -f ./$$tst; then dir=./; \
+	    elif test -f $$tst; then dir=; \
+	    else dir="$(srcdir)/"; fi; \
+	    if $(TESTS_ENVIRONMENT) $${dir}$$tst; then \
+	      all=`expr $$all + 1`; \
+	      case " $(XFAIL_TESTS) " in \
+	      *$$ws$$tst$$ws*) \
+		xpass=`expr $$xpass + 1`; \
+		failed=`expr $$failed + 1`; \
+		echo "XPASS: $$tst"; \
+	      ;; \
+	      *) \
+		echo "PASS: $$tst"; \
+	      ;; \
+	      esac; \
+	    elif test $$? -ne 77; then \
+	      all=`expr $$all + 1`; \
+	      case " $(XFAIL_TESTS) " in \
+	      *$$ws$$tst$$ws*) \
+		xfail=`expr $$xfail + 1`; \
+		echo "XFAIL: $$tst"; \
+	      ;; \
+	      *) \
+		failed=`expr $$failed + 1`; \
+		echo "FAIL: $$tst"; \
+	      ;; \
+	      esac; \
+	    else \
+	      skip=`expr $$skip + 1`; \
+	      echo "SKIP: $$tst"; \
+	    fi; \
+	  done; \
+	  if test "$$failed" -eq 0; then \
+	    if test "$$xfail" -eq 0; then \
+	      banner="All $$all tests passed"; \
+	    else \
+	      banner="All $$all tests behaved as expected ($$xfail expected failures)"; \
+	    fi; \
+	  else \
+	    if test "$$xpass" -eq 0; then \
+	      banner="$$failed of $$all tests failed"; \
+	    else \
+	      banner="$$failed of $$all tests did not behave as expected ($$xpass unexpected passes)"; \
+	    fi; \
+	  fi; \
+	  dashes="$$banner"; \
+	  skipped=""; \
+	  if test "$$skip" -ne 0; then \
+	    skipped="($$skip tests were not run)"; \
+	    test `echo "$$skipped" | wc -c` -le `echo "$$banner" | wc -c` || \
+	      dashes="$$skipped"; \
+	  fi; \
+	  report=""; \
+	  if test "$$failed" -ne 0 && test -n "$(PACKAGE_BUGREPORT)"; then \
+	    report="Please report to $(PACKAGE_BUGREPORT)"; \
+	    test `echo "$$report" | wc -c` -le `echo "$$banner" | wc -c` || \
+	      dashes="$$report"; \
+	  fi; \
+	  dashes=`echo "$$dashes" | sed s/./=/g`; \
+	  echo "$$dashes"; \
+	  echo "$$banner"; \
+	  test -z "$$skipped" || echo "$$skipped"; \
+	  test -z "$$report" || echo "$$report"; \
+	  echo "$$dashes"; \
+	  test "$$failed" -eq 0; \
+	else :; fi
+
+distdir: $(DISTFILES)
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+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -pR $(srcdir)/$$file $(distdir)$$dir || exit 1; \
+	    fi; \
+	    cp -pR $$d/$$file $(distdir)$$dir || exit 1; \
+	  else \
+	    test -f $(distdir)/$$file \
+	    || cp -p $$d/$$file $(distdir)/$$file \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
+	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
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+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
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+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
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+clean-am: clean-checkPROGRAMS clean-generic clean-libtool \
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+	-rm -rf ./$(DEPDIR)
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diff --git a/src/signalProcessing/fftshift/ccolumnfftshifta.c b/src/signalProcessing/fftshift/ccolumnfftshifta.c
new file mode 100644
index 00000000..a388509b
--- /dev/null
+++ b/src/signalProcessing/fftshift/ccolumnfftshifta.c
@@ -0,0 +1,48 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+
+static void Pair(floatComplex* in,int rows,int columns,floatComplex* out){
+	int i=0,j=0;
+	
+
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[i+((j+columns/2)%columns)*rows];
+}
+
+
+static void Odd(floatComplex* in,int rows,int columns,floatComplex* out){
+	int i=0,j=0;
+	/*
+		same as Pair with some change in the indice
+	*/
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[i+((j+(columns+1)/2)%columns)*rows];
+}
+
+
+
+
+
+
+void ccolumnfftshifta(floatComplex* in,int rows,int columns,floatComplex* out){	
+	switch(columns%2){
+		case 0 : Pair(in,rows,columns,out); break; 
+		case 1 : Odd(in,rows,columns,out); break; 
+		default : break;
+	}
+}
+
diff --git a/src/signalProcessing/fftshift/cfftshifta.c b/src/signalProcessing/fftshift/cfftshifta.c
new file mode 100644
index 00000000..fe51b0d7
--- /dev/null
+++ b/src/signalProcessing/fftshift/cfftshifta.c
@@ -0,0 +1,26 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+
+void cfftshifta(floatComplex* in,int rows,int columns,floatComplex* out){
+	floatComplex* temp;
+	
+	/*FIXME : malloc here*/
+	temp=malloc((uint)(rows*columns)*sizeof(floatComplex));
+	
+	crowfftshifta(in,rows,columns,temp);		
+	ccolumnfftshifta(temp,rows,columns,out);
+}
+
+
diff --git a/src/signalProcessing/fftshift/crowfftshifta.c b/src/signalProcessing/fftshift/crowfftshifta.c
new file mode 100644
index 00000000..99b807ec
--- /dev/null
+++ b/src/signalProcessing/fftshift/crowfftshifta.c
@@ -0,0 +1,48 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+
+static void Pair(floatComplex* in,int rows,int columns,floatComplex* out){
+	int i=0,j=0;
+
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[j*rows+((rows/2)+i)%rows];
+}
+
+
+static void Odd(floatComplex* in,int rows,int columns,floatComplex* out){
+	int i=0,j=0;
+
+	/*
+		same as Pair with some change in the indice
+	*/
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[j*rows+(((rows+1)/2)+i)%rows];
+}
+
+
+
+
+
+
+void crowfftshifta(floatComplex* in,int rows,int columns,floatComplex* out){	
+	switch(rows%2){
+		case 0 : Pair(in,rows,columns,out); break; 
+		case 1 : Odd(in,rows,columns,out); break; 
+		default : break;
+	}
+}
+
diff --git a/src/signalProcessing/fftshift/dcolumnfftshifta.c b/src/signalProcessing/fftshift/dcolumnfftshifta.c
new file mode 100644
index 00000000..a098a53a
--- /dev/null
+++ b/src/signalProcessing/fftshift/dcolumnfftshifta.c
@@ -0,0 +1,45 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+
+static void Pair(double* in,int rows,int columns,double* out){
+	int i=0,j=0;
+	
+
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[i+((j+columns/2)%columns)*rows];
+}
+
+
+static void Odd(double* in,int rows,int columns,double* out){
+	int i=0,j=0;
+	/*
+		same as Pair with some change in the indice
+	*/
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[i+((j+(columns+1)/2)%columns)*rows];
+}
+
+
+
+void dcolumnfftshifta(double* in,int rows,int columns,double* out){	
+	switch(columns%2){
+		case 0 : Pair(in,rows,columns,out); break; 
+		case 1 : Odd(in,rows,columns,out); break; 
+		default : break;
+	}
+}
+
diff --git a/src/signalProcessing/fftshift/dfftshifta.c b/src/signalProcessing/fftshift/dfftshifta.c
new file mode 100644
index 00000000..795dc0d3
--- /dev/null
+++ b/src/signalProcessing/fftshift/dfftshifta.c
@@ -0,0 +1,26 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+
+void dfftshifta(double* in,int rows,int columns,double* out){	
+	double* temp;
+	
+	/*FIXME : malloc here*/
+	temp=malloc((uint)(rows*columns)*sizeof(double));
+	
+	drowfftshifta(in,rows,columns,temp);		
+	dcolumnfftshifta(temp,rows,columns,out);
+}
+
+
diff --git a/src/signalProcessing/fftshift/drowfftshifta.c b/src/signalProcessing/fftshift/drowfftshifta.c
new file mode 100644
index 00000000..522c8281
--- /dev/null
+++ b/src/signalProcessing/fftshift/drowfftshifta.c
@@ -0,0 +1,46 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+
+static void Pair(double* in,int rows,int columns,double* out){
+	int i=0,j=0;
+	
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[j*rows+((rows/2)+i)%rows];
+}
+
+
+static void Odd(double* in,int rows,int columns,double* out){
+	int i=0,j=0;
+
+	/*
+		same as Pair with some change in the indice
+	*/
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[j*rows+(((rows+1)/2)+i)%rows];
+}
+
+
+
+
+void drowfftshifta(double* in,int rows,int columns,double* out){	
+	switch(rows%2){
+		case 0 : Pair(in,rows,columns,out); break; 
+		case 1 : Odd(in,rows,columns,out); break; 
+		default : break;
+	}
+}
+
diff --git a/src/signalProcessing/fftshift/scolumnfftshifta.c b/src/signalProcessing/fftshift/scolumnfftshifta.c
new file mode 100644
index 00000000..f455d057
--- /dev/null
+++ b/src/signalProcessing/fftshift/scolumnfftshifta.c
@@ -0,0 +1,49 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+
+static void Pair(float* in,int rows,int columns,float* out){
+	int i=0,j=0;
+	
+
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[i+((j+columns/2)%columns)*rows];
+}
+
+
+static void Odd(float* in,int rows,int columns,float* out){
+	int i=0,j=0;
+	/*
+		same as Pair with some change in the indice
+	*/
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[i+((j+(columns+1)/2)%columns)*rows];
+}
+
+
+
+
+
+
+
+void scolumnfftshifta(float* in,int rows,int columns,float* out){	
+	switch(columns%2){
+		case 0 : Pair(in,rows,columns,out); break; 
+		case 1 : Odd(in,rows,columns,out); break; 
+		default : break;
+	}
+}
+
diff --git a/src/signalProcessing/fftshift/sfftshifta.c b/src/signalProcessing/fftshift/sfftshifta.c
new file mode 100644
index 00000000..ea0756f4
--- /dev/null
+++ b/src/signalProcessing/fftshift/sfftshifta.c
@@ -0,0 +1,26 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+
+void sfftshifta(float* in,int rows,int columns,float* out){	
+	float* temp;
+	
+	/*FIXME : malloc here*/
+	temp=malloc((uint)(rows*columns)*sizeof(float));
+	
+	srowfftshifta(in,rows,columns,temp);		
+	scolumnfftshifta(temp,rows,columns,out);
+}
+
+
diff --git a/src/signalProcessing/fftshift/srowfftshifta.c b/src/signalProcessing/fftshift/srowfftshifta.c
new file mode 100644
index 00000000..b68c29cf
--- /dev/null
+++ b/src/signalProcessing/fftshift/srowfftshifta.c
@@ -0,0 +1,48 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+
+static void Pair(float* in,int rows,int columns,float* out){
+	int i=0,j=0;
+	
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[j*rows+((rows/2)+i)%rows];
+}
+
+
+static void Odd(float* in,int rows,int columns,float* out){
+	int i=0,j=0;
+
+	/*
+		same as Pair with some change in the indice
+	*/
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[j*rows+(((rows+1)/2)+i)%rows];
+}
+
+
+
+
+
+
+void srowfftshifta(float* in,int rows,int columns,float* out){	
+	switch(rows%2){
+		case 0 : Pair(in,rows,columns,out); break; 
+		case 1 : Odd(in,rows,columns,out); break; 
+		default : break;
+	}
+}
+
diff --git a/src/signalProcessing/fftshift/testDoubleFftShift.c b/src/signalProcessing/fftshift/testDoubleFftShift.c
new file mode 100644
index 00000000..e5d9452c
--- /dev/null
+++ b/src/signalProcessing/fftshift/testDoubleFftShift.c
@@ -0,0 +1,162 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+#include <assert.h>
+#include <stdio.h>
+
+#define SOURCE {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,\
+		    21,22,23,24,25,26,27,28,29,30}
+
+
+static void drowfftshiftaTest(void){
+	int i=0;	
+	
+	double in[]=SOURCE;
+	double result5_6[30]={4,5,1,2,3,9,10,6,7,8,14,15,11,12,13,19,20,16,17,18,24,25,21,22,23,29,30,26,27,28};
+	double result6_5[30]={4,5,6,1,2,3,10,11,12,7,8,9,16,17,18,13,14,15,22,23,24,19,20,21,28,29,30,25,26,27};
+	double out[30];
+	
+	drowfftshifta(in,5,6,out);
+	for (i=0;i<30;i++)	assert( out[i]-result5_6[i]==0);
+	
+	drowfftshifta(in,6,5,out);	
+	for (i=0;i<30;i++)	assert( out[i]-result6_5[i]==0);
+	
+}
+
+static void zrowfftshiftaTest(void){
+	int i=0;
+		
+	double inR[]=SOURCE;
+	double result5_6[30]={4,5,1,2,3,9,10,6,7,8,14,15,11,12,13,19,20,16,17,18,24,25,21,22,23,29,30,26,27,28};
+	double result6_5[30]={4,5,6,1,2,3,10,11,12,7,8,9,16,17,18,13,14,15,22,23,24,19,20,21,28,29,30,25,26,27};
+	doubleComplex out[30];
+	double ZEROS[30]={0};
+	doubleComplex *in;
+	
+	in=DoubleComplexMatrix(inR,ZEROS,30);
+	
+	zrowfftshifta(in,5,6,out);
+	for (i=0;i<30;i++)	{
+		assert( zreals(out[i])-result5_6[i]==0);		
+		assert( zimags(out[i])==0);
+	}
+	
+	zrowfftshifta(in,6,5,out);	
+	for (i=0;i<30;i++)	{
+		assert( zreals(out[i])-result6_5[i]==0);		
+		assert( zimags(out[i])==0);
+	}
+}
+
+
+static void dcolumnfftshiftaTest(void){
+	int i=0;	
+	
+	double in[]=SOURCE;
+	double result5_6[30]={16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
+	double result6_5[30]={19,20,21,22,23,24,25,26,27,28,29,30,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18};
+	double out[30];
+	
+	dcolumnfftshifta(in,5,6,out);
+	for (i=0;i<30;i++)	assert( out[i]-result5_6[i]==0);
+	
+	dcolumnfftshifta(in,6,5,out);	
+	for (i=0;i<30;i++)	assert( out[i]-result6_5[i]==0);
+	
+}
+
+static void zcolumnfftshiftaTest(void){
+	int i=0;
+		
+	double inR[]=SOURCE;
+	double result5_6[30]={16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
+	double result6_5[30]={19,20,21,22,23,24,25,26,27,28,29,30,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18};
+	doubleComplex out[30];
+	double ZEROS[30]={0};
+	doubleComplex *in;
+	
+	in=DoubleComplexMatrix(inR,ZEROS,30);
+	
+	zcolumnfftshifta(in,5,6,out);
+	for (i=0;i<30;i++)	{
+		assert( zreals(out[i])-result5_6[i]==0);		
+		assert( zimags(out[i])==0);
+	}
+	
+	zcolumnfftshifta(in,6,5,out);	
+	for (i=0;i<30;i++)	{
+		assert( zreals(out[i])-result6_5[i]==0);		
+		assert( zimags(out[i])==0);
+	}
+	
+}
+
+static void dfttshiftaTest(void){
+	int i=0;	
+	
+	double in[]=SOURCE;
+	double result5_6[30]={19,20,16,17,18,24,25,21,22,23,29,30,26,27,28,4,5,1,2,3,9,10,6,7,8,14,15,11,12,13};
+	double result6_5[30]={22,23,24,19,20,21,28,29,30,25,26,27,4,5,6,1,2,3,10,11,12,7,8,9,16,17,18,13,14,15};
+	double out[30];
+	
+	dfftshifta(in,5,6,out);
+	for (i=0;i<30;i++)	assert( out[i]-result5_6[i]==0);
+	
+	dfftshifta(in,6,5,out);	
+	for (i=0;i<30;i++)	assert( out[i]-result6_5[i]==0);
+	
+}
+
+static void zfftshiftaTest(void){
+	int i=0;
+		
+	double inR[]=SOURCE;
+ 	double result5_6[30]={19,20,16,17,18,24,25,21,22,23,29,30,26,27,28,4,5,1,2,3,9,10,6,7,8,14,15,11,12,13};
+	double result6_5[30]={22,23,24,19,20,21,28,29,30,25,26,27,4,5,6,1,2,3,10,11,12,7,8,9,16,17,18,13,14,15};
+	doubleComplex out[30];
+	double ZEROS[30]={0};
+	doubleComplex *in;
+	
+	in=DoubleComplexMatrix(inR,ZEROS,30);
+	
+	zfftshifta(in,5,6,out);
+	for (i=0;i<30;i++)	{
+		assert( zreals(out[i])-result5_6[i]==0);		
+		assert( zimags(out[i])==0);
+	}
+	
+	zfftshifta(in,6,5,out);	
+	for (i=0;i<30;i++)	{
+		assert( zreals(out[i])-result6_5[i]==0);		
+		assert( zimags(out[i])==0);
+	}
+	
+}
+
+static int FftShiftTest(void){
+	drowfftshiftaTest();
+	zrowfftshiftaTest();
+	dcolumnfftshiftaTest();
+	zcolumnfftshiftaTest();
+	dfttshiftaTest();
+	zfftshiftaTest();
+	return 0;
+}
+
+
+int main(void){
+	assert (FftShiftTest()==0);
+	return 0;
+}
diff --git a/src/signalProcessing/fftshift/testFloatFftShift.c b/src/signalProcessing/fftshift/testFloatFftShift.c
new file mode 100644
index 00000000..19b85738
--- /dev/null
+++ b/src/signalProcessing/fftshift/testFloatFftShift.c
@@ -0,0 +1,159 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+#include <assert.h>
+#define SOURCE {1,2,3,4,5,6,7,8,9,10,11,12}
+
+
+static void srowfftshiftaTest(void){
+	int i=0;	
+	
+	float in[]=SOURCE;
+	float result3_4[12]={3,1,2,6,4,5,9,7,8,12,10,11};
+	float result4_3[12]={3,4,1,2,7,8,5,6,11,12,9,10};
+	float out[12];
+	
+	srowfftshifta(in,3,4,out);
+	for (i=0;i<12;i++)	assert( out[i]-result3_4[i]==0);
+	
+	srowfftshifta(in,4,3,out);	
+	for (i=0;i<12;i++)	assert( out[i]-result4_3[i]==0);
+	
+}
+
+static void crowfftshiftaTest(void){
+	int i=0;
+		
+	float inR[]=SOURCE;
+	float result3_4[12]={3,1,2,6,4,5,9,7,8,12,10,11};
+	float result4_3[12]={3,4,1,2,7,8,5,6,11,12,9,10};
+	floatComplex out[12];
+	float ZEROS[12]={0};
+	floatComplex *in;
+	
+	in=FloatComplexMatrix(inR,ZEROS,12);
+	
+	crowfftshifta(in,3,4,out);
+	for (i=0;i<12;i++)	{
+		assert( creals(out[i])-result3_4[i]==0);		
+		assert( cimags(out[i])==0);
+	}
+	
+	crowfftshifta(in,4,3,out);	
+	for (i=0;i<12;i++)	{
+		assert( creals(out[i])-result4_3[i]==0);		
+		assert( cimags(out[i])==0);
+	}
+}
+
+
+static void scolumnfftshiftaTest(void){
+	int i=0;	
+	
+	float in[]=SOURCE;
+	float result3_4[12]={7,8,9,10,11,12,1,2,3,4,5,6};
+	float result4_3[12]={9,10,11,12,1,2,3,4,5,6,7,8};
+	float out[12];
+	
+	scolumnfftshifta(in,3,4,out);
+	for (i=0;i<12;i++)	assert( out[i]-result3_4[i]==0);
+	
+	scolumnfftshifta(in,4,3,out);	
+	for (i=0;i<12;i++)	assert( out[i]-result4_3[i]==0);
+	
+}
+
+static void ccolumnfftshiftaTest(void){
+	int i=0;
+		
+	float inR[]=SOURCE;
+	float result3_4[12]={7,8,9,10,11,12,1,2,3,4,5,6};
+	float result4_3[12]={9,10,11,12,1,2,3,4,5,6,7,8};
+	floatComplex out[12];
+	float ZEROS[12]={0};
+	floatComplex *in;
+	
+	in=FloatComplexMatrix(inR,ZEROS,12);
+	
+	ccolumnfftshifta(in,3,4,out);
+	for (i=0;i<12;i++)	{
+		assert( creals(out[i])-result3_4[i]==0);		
+		assert( cimags(out[i])==0);
+	}
+	
+	ccolumnfftshifta(in,4,3,out);	
+	for (i=0;i<12;i++)	{
+		assert( creals(out[i])-result4_3[i]==0);		
+		assert( cimags(out[i])==0);
+	}
+	
+}
+
+static void sfftshiftaTest(void){
+	int i=0;	
+	
+	float in[]=SOURCE;
+	float result3_4[12]={9,7,8,12,10,11,3,1,2,6,4,5};
+	float result4_3[12]={11,12,9,10,3,4,1,2,7,8,5,6};
+	float out[12];
+	
+	sfftshifta(in,3,4,out);
+	for (i=0;i<12;i++)	assert( out[i]-result3_4[i]==0);
+	
+	sfftshifta(in,4,3,out);	
+	for (i=0;i<12;i++)	assert( out[i]-result4_3[i]==0);
+	
+}
+
+static void cfftshiftaTest(void){
+	int i=0;
+		
+	float inR[]=SOURCE;
+	float result3_4[12]={9,7,8,12,10,11,3,1,2,6,4,5};
+	float result4_3[12]={11,12,9,10,3,4,1,2,7,8,5,6};
+	floatComplex out[12];
+	float ZEROS[12]={0};
+	floatComplex *in;
+	
+	in=FloatComplexMatrix(inR,ZEROS,12);
+	
+	cfftshifta(in,3,4,out);
+	for (i=0;i<12;i++)	{
+		assert( creals(out[i])-result3_4[i]==0);		
+		assert( cimags(out[i])==0);
+	}
+	
+	cfftshifta(in,4,3,out);	
+	for (i=0;i<12;i++)	{
+		assert( creals(out[i])-result4_3[i]==0);		
+		assert( cimags(out[i])==0);
+	}
+	
+}
+
+static int FftShiftTest(void){
+	srowfftshiftaTest();
+	crowfftshiftaTest();
+	scolumnfftshiftaTest();
+	ccolumnfftshiftaTest();
+	sfftshiftaTest();
+	cfftshiftaTest();
+	return 0;
+}
+
+
+int main(void){
+	assert (FftShiftTest()==0);
+	return 0;
+}
diff --git a/src/signalProcessing/fftshift/zcolumnfftshifta.c b/src/signalProcessing/fftshift/zcolumnfftshifta.c
new file mode 100644
index 00000000..fc36acde
--- /dev/null
+++ b/src/signalProcessing/fftshift/zcolumnfftshifta.c
@@ -0,0 +1,46 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+
+static void Pair(doubleComplex* in,int rows,int columns,doubleComplex* out){
+	int i=0,j=0;
+	
+
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[i+((j+columns/2)%columns)*rows];
+}
+
+
+static void Odd(doubleComplex* in,int rows,int columns,doubleComplex* out){
+	int i=0,j=0;
+	/*
+		same as Pair with some change in the indice
+	*/
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[i+((j+(columns+1)/2)%columns)*rows];
+}
+
+
+
+
+void zcolumnfftshifta(doubleComplex* in,int rows,int columns,doubleComplex* out){	
+	switch(columns%2){
+		case 0 : Pair(in,rows,columns,out); break; 
+		case 1 : Odd(in,rows,columns,out); break; 
+		default : break;
+	}
+}
+
diff --git a/src/signalProcessing/fftshift/zfftshifta.c b/src/signalProcessing/fftshift/zfftshifta.c
new file mode 100644
index 00000000..c9b6a4fb
--- /dev/null
+++ b/src/signalProcessing/fftshift/zfftshifta.c
@@ -0,0 +1,26 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+
+void zfftshifta(doubleComplex* in,int rows,int columns,doubleComplex* out){	
+	doubleComplex* temp;
+	
+	/*FIXME : malloc here*/
+	temp=malloc((uint)(rows*columns)*sizeof(doubleComplex));
+	
+	zrowfftshifta(in,rows,columns,temp);		
+	zcolumnfftshifta(temp,rows,columns,out);
+}
+
+
diff --git a/src/signalProcessing/fftshift/zrowfftshifta.c b/src/signalProcessing/fftshift/zrowfftshifta.c
new file mode 100644
index 00000000..b5fbb699
--- /dev/null
+++ b/src/signalProcessing/fftshift/zrowfftshifta.c
@@ -0,0 +1,45 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2008 - INRIA - Arnaud TORSET
+ *
+ *  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
+ *
+ */
+
+
+#include "fftshift.h"
+
+static void Pair(doubleComplex* in,int rows,int columns,doubleComplex* out){
+	int i=0,j=0;
+
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[j*rows+((rows/2)+i)%rows];
+}
+
+
+static void Odd(doubleComplex* in,int rows,int columns,doubleComplex* out){
+	int i=0,j=0;
+
+	/*
+		same as Pair with some change in the indice
+	*/
+	for (i=0;i<rows;i++)
+		for(j=0;j<columns;j++)
+			out[i+j*rows]=in[j*rows+(((rows+1)/2)+i)%rows];
+}
+
+
+
+void zrowfftshifta(doubleComplex* in,int rows,int columns,doubleComplex* out){	
+	switch(rows%2){
+		case 0 : Pair(in,rows,columns,out); break; 
+		case 1 : Odd(in,rows,columns,out); break; 
+		default : break;
+	}
+}
+
diff --git a/src/signalProcessing/includes/fftshift.h b/src/signalProcessing/includes/fftshift.h
new file mode 100644
index 00000000..3f3f6aa9
--- /dev/null
+++ b/src/signalProcessing/includes/fftshift.h
@@ -0,0 +1,68 @@
+/*
+ *  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 __FFTSHIFT_H__
+#define __FFTSHIFT_H__
+
+
+/* 
+   fftshift rearrange the result of fft(x) 
+   it's call like that : fftshift(y), y=ff(x)
+*/
+#include "floatComplex.h"
+#include "doubleComplex.h"
+
+
+#define sfftshifts(in)					in
+#define dfftshifts(in)					in
+#define cfftshifts(in)					in
+#define zfftshifts(in)					in
+
+void sfftshifta(float* in,int rows,int columns,float* out);		
+
+void dfftshifta(double* in,int rows,int columns,double* out);
+
+void cfftshifta ( floatComplex* in , int rows, int cols, floatComplex* out);
+
+void zfftshifta ( doubleComplex* in , int rows, int cols, doubleComplex* out);
+
+
+#define srowfftshifts(in)					in
+#define drowfftshifts(in)					in
+#define crowfftshifts(in)					in
+#define zrowfftshifts(in)					in
+
+void srowfftshifta(float* in,int rows,int columns,float* out);		
+
+void drowfftshifta(double* in,int rows,int columns,double* out);
+
+void crowfftshifta ( floatComplex* in , int rows, int cols, floatComplex* out);
+
+void zrowfftshifta ( doubleComplex* in , int rows, int cols, doubleComplex* out);
+
+#define scolumnfftshifts(in)					in
+#define dcolumnfftshifts(in)					in
+#define ccolumnfftshifts(in)					in
+#define zcolumnfftshifts(in)					in
+
+void scolumnfftshifta(float* in,int rows,int columns,float* out);		
+
+void dcolumnfftshifta(double* in,int rows,int columns,double* out);
+
+void ccolumnfftshifta ( floatComplex* in , int rows, int cols, floatComplex* out);
+
+void zcolumnfftshifta ( doubleComplex* in , int rows, int cols, doubleComplex* out);
+
+
+
+#endif /* !__FFTSHIFT_H__ */
+
diff --git a/src/signalProcessing/interfaces/int_fftshift.h b/src/signalProcessing/interfaces/int_fftshift.h
new file mode 100644
index 00000000..a2ddb185
--- /dev/null
+++ b/src/signalProcessing/interfaces/int_fftshift.h
@@ -0,0 +1,51 @@
+/*
+ * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ * Copyright (C) 2008-2008 - INRIA - Bruno JOFRET
+ * 
+ * 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
+ *
+ */
+
+/* THIS IS AN AUTOMATICALLY GENERATED FILE : DO NOT EDIT BY HAND. */
+
+#ifndef __INT_FFTSHIFT_H__
+#define __INT_FFTSHIFT_H__
+
+#define s0fftshifts0(in)			sfftshifts(in)
+
+#define d0fftshiftd0(in)			dfftshifts(in)
+
+#define c0fftshiftc0(in)			cfftshifts(in)
+
+#define z0fftshiftz0(in)			zfftshifts(in)
+
+#define s2fftshifts2(in,size,out)		sfftshifta(in, size[0]*size[1], out)
+
+#define d2fftshiftd2(in,size,out)		dfftshifta(in, size[0]*size[1], out)
+
+#define c2fftshiftc2(in,size,out)		cfftshifta(in, size[0]*size[1], out)
+
+#define z2fftshiftz2(in,size,out)		zfftshifta(in, size[0]*size[1], out)
+
+
+#define s0s0fftshifts0(in1,in2)			sfftshifts(in)
+
+#define d0d0fftshiftd0(in,in2)			dfftshifts(in)
+
+#define c0s0fftshiftc0(in,in2)			cfftshifts(in)
+
+#define z0d0fftshiftz0(in,in2)			zfftshifts(in)
+
+#define s2s0fftshifts2(in,size,in2,out)		(in2==1) ? srowfftshifta(in, size[0]*size[1], out) : scolumnfftshifta(in, size[0]*size[1], out)
+
+#define d2d0fftshiftd2(in,size,in2,out)		(in2==1) ? drowfftshifta(in, size[0]*size[1], out) : dcolumnfftshifta(in, size[0]*size[1], out)
+
+#define c2s0fftshiftc2(in,size,in2,out)		(in2==1) ? crowfftshifta(in, size[0]*size[1], out) : ccolumnfftshifta(in, size[0]*size[1], out)
+
+#define z2d0fftshiftz2(in,size,in2,out)		(in2==1) ? zrowfftshifta(in, size[0]*size[1], out) : zcolumnfftshifta(in, size[0]*size[1], out)
+
+#endif /* !__INT_FFTSHIFT_H__ */