CMakeLists.txt

@@ -17,7 +17,7 @@ if ( NOT WIN32 )
 endif ()
 
 if( NOT DEFINED ITA_FFT_WITH_FFTW3 )
-	set( ITA_FFT_WITH_FFTW3 ON CACHE BOOL "Build with FFTW3 for fast fourier transforms" )
+	set( ITA_FFT_WITH_FFTW3 ON CACHE BOOL "Build with FFTW3 for fast fourier transforms (will force the ITA libraries to select the GNU GPL license)" )
 endif( )
 
 if( NOT DEFINED ITA_FFT_WITH_INTEL_MKL10 )
@@ -51,9 +51,10 @@ set( ITAFFTSources
 	src/ITAFFTUtils.cpp
 	)	
 
+set( ITA_SELECTIVE_LICENSE_DEPENDENCY_GPL OFF )
 if( ITA_FFT_WITH_FFTW3 )
 	set( ITAFFTSources "${ITAFFTSources}" src/FFTW3Backend.h src/FFTW3Backend.cpp )
-	add_definitions( -DITAFFT_WITH_FFTW3 )
+	add_definitions( -DITAFFT_WITH_FFTW3 )	
 endif( )
 
 if( ITA_FFT_WITH_INTEL_MKL10 )
@@ -62,7 +63,6 @@ if( ITA_FFT_WITH_INTEL_MKL10 )
 endif( )
 	
 
-# compiler settings
 # compiler settings
 if( ITA_VISTA_BUILD_STATIC )
 	add_definitions( -DVISTABASE_STATIC -DVISTAMATH_STATIC -DVISTAASPECTS_STATIC -DVISTATOOLS_STATIC -DVISTAINTERPROCCOMM_STATIC )
@@ -83,6 +83,30 @@ add_library( ITAFFT ${ITAFFTHeader} ${ITAFFTSources} )
 target_link_libraries( ITAFFT ${VISTA_USE_PACKAGE_LIBRARIES} )
 
 
+# selective license
+
+if( ITA_FFT_WITH_FFTW3 )
+	
+	if( CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR )	
+	
+		# Take care of license here
+		message( "FFTW3 requires copying under the terms of the GNU General Public License. This license includes a copyleft and may require your source code to be published under the same terms. Please respect the license agreements. Will include the GNU GPL COPYING file into distribution." )
+			
+		set( SELECTED_LICENSE "GNU General Public License" )
+		set( GPL_DEPENDENCIES "FFTW3" )
+		configure_file( COPYING.proto ${CMAKE_CURRENT_SOURCE_DIR}/COPYING @ONLY )
+		install( FILES COPYING DESTINATION . )
+
+	else( )
+	
+		# Pass it on to parent
+		set( ITA_SELECTIVE_LICENSE_DEPENDENCY_GPL ON PARENT_SCOPE )
+		
+	endif( )
+	
+endif( )
+
+
 # config
 vista_configure_lib( ITAFFT )
 vista_install( ITAFFT )

COPYING.proto

+Copyright 2015-2018 Institute of Technical Acoustics (ITA), RWTH Aachen University
+
+This binary packages, although generated from code published under 
+Apache License, Version 2.0 requires distribution under the terms of
+the @SELECTED_LICENSE@. Options in the build configuration have been 
+selected that require linking against libraries that include a copyleft.
+
+GNU GPL dependencies: @GPL_DEPENDENCIES@
+
+> This distribution is subject to VA's selective license dependency and may require you to publish your derived work under a copyleft license as well. The details are described in [README.md](https://git.rwth-aachen.de/ita/ITACoreLibs/) of ITACoreLibs.
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the @SELECTED_LICENSE@ as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the @SELECTED_LICENSE@
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
\ No newline at end of file

README.md

-## ITADataSources
+## ITAFFT
 
 ITAFFT is a backend-configurable C++ library for fast Fourier transformations. Currently, FFTW and Intel MKL is supported.
 ITAFFT is a component of [ITACoreLibs](https://git.rwth-aachen.de/ita/ITACoreLibs), a collection of C++ libraries for virtual acoustics.

include/ITAFFT.h

 /*
-* ----------------------------------------------------------------
-*
-*		ITA core libs
-*		(c) Copyright Institute of Technical Acoustics (ITA)
-*		RWTH Aachen University, Germany, 2015-2017
-*
-* ----------------------------------------------------------------
-*				    ____  __________  _______
-*				   //  / //__   ___/ //  _   |
-*				  //  /    //  /    //  /_|  |
-*				 //  /    //  /    //  ___   |
-*				//__/    //__/    //__/   |__|
-*
-* ----------------------------------------------------------------
-*
-*/
+ * ----------------------------------------------------------------
+ *
+ *		ITA core libs
+ *		(c) Copyright Institute of Technical Acoustics (ITA)
+ *		RWTH Aachen University, Germany, 2015-2018
+ *
+ * ----------------------------------------------------------------
+ *				    ____  __________  _______
+ *				   //  / //__   ___/ //  _   |
+ *				  //  /    //  /    //  /_|  |
+ *				 //  /    //  /    //  ___   |
+ *				//__/    //__/    //__/   |__|
+ *
+ * ----------------------------------------------------------------
+ *
+ */
 
 #ifndef INCLUDE_WATCHER_ITA_FFT
 #define INCLUDE_WATCHER_ITA_FFT

include/ITAFFTDefinitions.h

@@ -3,7 +3,7 @@
  *
  *		ITA core libs
  *		(c) Copyright Institute of Technical Acoustics (ITA)
- *		RWTH Aachen University, Germany, 2015-2017
+ *		RWTH Aachen University, Germany, 2015-2018
  *
  * ----------------------------------------------------------------
  *				    ____  __________  _______

include/ITAFFTUtils.h

@@ -3,7 +3,7 @@
  *
  *		ITA core libs
  *		(c) Copyright Institute of Technical Acoustics (ITA)
- *		RWTH Aachen University, Germany, 2015-2017
+ *		RWTH Aachen University, Germany, 2015-2018
  *
  * ----------------------------------------------------------------
  *				    ____  __________  _______

src/ITAFFT.cpp

@@ -15,10 +15,14 @@
 #endif
 
 
-ITAFFT::ITAFFT() : m_pRealization(NULL) {}
+ITAFFT::ITAFFT() : m_pRealization( NULL )
+{
+}
 
-ITAFFT::ITAFFT(int type, int size, float* in, float* out, int iPlannungMethod) : m_pRealization(NULL) {
-	plan(type, size, in, out, iPlannungMethod);
+ITAFFT::ITAFFT( int type, int size, float* in, float* out, int iPlannungMethod )
+	: m_pRealization( NULL )
+{
+	plan( type, size, in, out, iPlannungMethod );
 }
 
 ITAFFT::~ITAFFT()
@@ -26,18 +30,20 @@ ITAFFT::~ITAFFT()
 	delete m_pRealization;
 }
 
-bool ITAFFT::isPlanned() {
-	return (m_pRealization != NULL);
+bool ITAFFT::isPlanned()
+{
+	return ( m_pRealization != NULL );
 }
 
-void ITAFFT::plan(int type, int size, float* in, float* out, int iPlannungMethod) {
+void ITAFFT::plan( int type, int size, float* in, float* out, int iPlannungMethod )
+{
 	// Falls bereits geplant wurde, wird der alte Plan verworfen
 	delete m_pRealization;
 
 	unsigned int uiFlags = 0;
-	if (iPlannungMethod == PLAN_USING_MEASUREMENT)
+	if( iPlannungMethod == PLAN_USING_MEASUREMENT )
 		uiFlags |= FFTW_MEASURE;
-	if (iPlannungMethod == PLAN_USING_ESTIMATION)
+	if( iPlannungMethod == PLAN_USING_ESTIMATION )
 		uiFlags |= FFTW_ESTIMATE;
 
 #ifdef ITAFFT_WITH_FFTW3
@@ -45,26 +51,27 @@ void ITAFFT::plan(int type, int size, float* in, float* out, int iPlannungMethod
 #endif
 
 #ifdef ITAFFT_WITH_MKL10
-	m_pRealization = MKL10Backend::getInstance()->plan(type, size, in, out, uiFlags);
+	m_pRealization = MKL10Backend::getInstance()->plan( type, size, in, out, uiFlags );
 #endif
 
-	if (m_pRealization == NULL) ITA_EXCEPT1(UNKNOWN, "Planning of the FFT failed");
+	if( m_pRealization == NULL )
+		ITA_EXCEPT1( UNKNOWN, "Planning of the FFT failed" );
 }
 
-void ITAFFT::execute() 
+void ITAFFT::execute()
 {
-	if (m_pRealization == NULL) 
-		ITA_EXCEPT1(MODAL_EXCEPTION, "Attempt to execute unplanned ITAFFT");
+	if( m_pRealization == NULL )
+		ITA_EXCEPT1( MODAL_EXCEPTION, "Attempt to execute unplanned ITAFFT" );
 	m_pRealization->execute();
 }
 
-void ITAFFT::execute(float* in, float* out)
+void ITAFFT::execute( float* in, float* out )
 {
-	if (m_pRealization == NULL) 
-		ITA_EXCEPT1(MODAL_EXCEPTION, "Attempt to execute unplanned ITAFFT");
-	m_pRealization->execute(in, out);
+	if( m_pRealization == NULL )
+		ITA_EXCEPT1( MODAL_EXCEPTION, "Attempt to execute unplanned ITAFFT" );
+	m_pRealization->execute( in, out );
 }
 
 std::string ITAFFT::toString() {
-	return (m_pRealization == NULL ? std::string("unplanned ITAFFT") : m_pRealization->toString());
+	return ( m_pRealization == NULL ? std::string( "unplanned ITAFFT" ) : m_pRealization->toString() );
 }

src/ITAFFTBackend.h

 /*
- *  ITAFFT, eine Wrapper-Bibliothek fr schnelle Fouriertransformationen
+ * ----------------------------------------------------------------
  *
- *  Autor: Frank Wefers (Frank.Wefers@akustik.rwth-aachen.de)
+ *		ITA core libs
+ *		(c) Copyright Institute of Technical Acoustics (ITA)
+ *		RWTH Aachen University, Germany, 2015-2018
  *
- *  (c) Copyright Institut fr Technische Akustik (ITA), RWTH Aachen
+ * ----------------------------------------------------------------
+ *				    ____  __________  _______
+ *				   //  / //__   ___/ //  _   |
+ *				  //  /    //  /    //  /_|  |
+ *				 //  /    //  /    //  ___   |
+ *				//__/    //__/    //__/   |__|
+ *
+ * ----------------------------------------------------------------
  *
  */
 
-// $Id: ITAFFTBackend.h,v 1.2 2009-02-10 22:37:42 stienen Exp $
-
 #ifndef INCLUDE_WATCHER_ITA_FFT_BACKEND
 #define INCLUDE_WATCHER_ITA_FFT_BACKEND
 

src/ITAFFTFactory.h

 /*
- *  ITAFFT, eine Wrapper-Bibliothek fr schnelle Fouriertransformationen
+ * ----------------------------------------------------------------
  *
- *  Autor: Frank Wefers (Frank.Wefers@akustik.rwth-aachen.de)
+ *		ITA core libs
+ *		(c) Copyright Institute of Technical Acoustics (ITA)
+ *		RWTH Aachen University, Germany, 2015-2018
  *
- *  (c) Copyright 2008 Institut fr Technische Akustik (ITA), RWTH Aachen
+ * ----------------------------------------------------------------
+ *				    ____  __________  _______
+ *				   //  / //__   ___/ //  _   |
+ *				  //  /    //  /    //  /_|  |
+ *				 //  /    //  /    //  ___   |
+ *				//__/    //__/    //__/   |__|
+ *
+ * ----------------------------------------------------------------
  *
  */
 
-// $Id: ITAFFTFactory.h,v 1.1 2008-02-07 19:14:44 fwefers Exp $
-
 #ifndef INCLUDE_WATCHER_ITA_FFT_FACTORY
 #define INCLUDE_WATCHER_ITA_FFT_FACTORY
 

src/ITAFFTRealization.h

 /*
- *  ITAFFT, eine Wrapper-Bibliothek für schnelle Fouriertransformationen
+ * ----------------------------------------------------------------
  *
- *  Autor: Frank Wefers (Frank.Wefers@akustik.rwth-aachen.de)
+ *		ITA core libs
+ *		(c) Copyright Institute of Technical Acoustics (ITA)
+ *		RWTH Aachen University, Germany, 2015-2018
  *
- *  (c) Copyright Institut für Technische Akustik (ITA), RWTH Aachen
+ * ----------------------------------------------------------------
+ *				    ____  __________  _______
+ *				   //  / //__   ___/ //  _   |
+ *				  //  /    //  /    //  /_|  |
+ *				 //  /    //  /    //  ___   |
+ *				//__/    //__/    //__/   |__|
+ *
+ * ----------------------------------------------------------------
  *
  */
 
-// $Id: ITAFFTRealization.h,v 1.2 2009-02-10 22:37:42 stienen Exp $
-
 #ifndef INCLUDE_WATCHER_ITA_FFT_REALIZATION
 #define INCLUDE_WATCHER_ITA_FFT_REALIZATION
 

src/MKL10Backend.h

 /*
- *  ITAFFT, eine Wrapper-Bibliothek fr schnelle Fouriertransformationen
+ * ----------------------------------------------------------------
  *
- *  Autor: Frank Wefers (Frank.Wefers@akustik.rwth-aachen.de)
+ *		ITA core libs
+ *		(c) Copyright Institute of Technical Acoustics (ITA)
+ *		RWTH Aachen University, Germany, 2015-2018
  *
- *  (c) Copyright Institut fr Technische Akustik (ITA), RWTH Aachen
+ * ----------------------------------------------------------------
+ *				    ____  __________  _______
+ *				   //  / //__   ___/ //  _   |
+ *				  //  /    //  /    //  /_|  |
+ *				 //  /    //  /    //  ___   |
+ *				//__/    //__/    //__/   |__|
+ *
+ * ----------------------------------------------------------------
  *
  */
 
-// $Id: MKL10Backend.h,v 1.1 2009-12-14 10:19:17 fwefers Exp $
-
-#ifndef __MKL10_BACKEND_H__
-#define __MKL10_BACKEND_H__
+#ifndef IW_MKL10_BACKEND
+#define IW_MKL10_BACKEND
 
-#ifdef WITH_MKL10
+#ifdef ITAFFT_WITH_FFTW3
 
 // Hinweis: Diese Implementierung nutzt derzeit das FFTW3-Interface der MKL
 
@@ -20,7 +27,8 @@
 #include <ITAFFTBackend.h>
 #include <ITAFFTRealization.h>
 
-class MKL10Realization : public ITAFFTRealization {
+class MKL10Realization : public ITAFFTRealization
+{
 public:
 	MKL10Realization(int type, int size, float* in, float* out);
 	~MKL10Realization();
@@ -38,7 +46,8 @@ private:
 	std::string m_sInfo;
 };
 
-class MKL10Backend : public ITAFFTBackend {
+class MKL10Backend : public ITAFFTBackend
+{
 public:
 	static MKL10Backend* getInstance();
 
@@ -48,10 +57,6 @@ private:
 	static MKL10Backend* m_pInstance;	// Singleton-Instanz
 };
 
-#endif // WITH_MKL10
-
-#endif // __MKL10_BACKEND_H__
-
-
-
+#endif // ITAFFT_WITH_FFTW3
 
+#endif // IW_MKL10_BACKEND