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diff --git a/krita/core/kis_math_toolbox.h b/krita/core/kis_math_toolbox.h
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+/*
+ *  This file is part of the KDE project
+ *
+ *  Copyright (c) 2005 Cyrille Berger <cberger@cberger.net>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 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 GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef KIS_MATH_TOOLBOX_H
+#define KIS_MATH_TOOLBOX_H
+
+#include <qobject.h>
+
+// typedef unsigned int uint;
+
+#include <kis_generic_registry.h>
+#include "kis_paint_device.h"
+#include "kis_types.h"
+
+#include <new>
+
+class KisMathToolbox : public QObject {
+    Q_OBJECT
+    public:
+        struct KisFloatRepresentation {
+            KisFloatRepresentation(uint nsize, uint ndepth) throw(std::bad_alloc ) : coeffs(new float[nsize*nsize*ndepth]) ,size(nsize), depth(ndepth)
+            {
+                // XXX: Valgrind shows that these are being used without being initialised.
+                for (Q_UINT32 i = 0; i < nsize*nsize*ndepth; ++i) {
+                    coeffs[i] = 0;
+                }
+            }
+            ~KisFloatRepresentation() { if(coeffs) delete[] coeffs; }
+            float* coeffs;
+            uint size;
+            uint depth;
+        };
+        typedef KisFloatRepresentation KisWavelet;
+    public:
+        KisMathToolbox(KisID id);
+        ~KisMathToolbox();
+    public:
+        inline KisID id() { return m_id; };
+        /**
+         * This function initialize a wavelet structure
+         * @param lay the layer that will be used for the transformation
+         */
+        inline KisWavelet* initWavelet(KisPaintDeviceSP lay, const QRect&) throw(std::bad_alloc );
+        inline uint fastWaveletTotalSteps(const QRect&);
+        /**
+         * This function reconstruct the layer from the information of a wavelet
+         * @param src layer from which the wavelet will be computed
+         * @param buff if set to 0, the buffer will be initialized by the function,
+         * you might want to give a buff to the function if you want to use the same buffer
+         * in transformToWavelet and in untransformToWavelet, use initWavelet to initialize
+         * the buffer
+         */
+         virtual KisWavelet* fastWaveletTransformation(KisPaintDeviceSP src, const QRect&, KisWavelet* buff = 0) =0;
+        /**
+         * This function reconstruct the layer from the information of a wavelet
+         * @param dst layer on which the wavelet will be untransform
+         * @param wav the wavelet
+         * @param buff if set to 0, the buffer will be initialized by the function,
+         * you might want to give a buff to the function if you want to use the same buffer
+         * in transformToWavelet and in untransformToWavelet, use initWavelet to initialize
+         * the buffer
+         */
+         virtual void fastWaveletUntransformation(KisPaintDeviceSP dst, const QRect&, KisWavelet* wav, KisWavelet* buff = 0) =0;
+    signals:
+        void nextStep();
+    protected:
+        /**
+         * This function transform a paint device into a KisFloatRepresentation, this function is colorspace independant,
+         * for Wavelet, Pyramid and FFT the data is allways the exact value of the channel stored in a float.
+         */
+        void transformToFR(KisPaintDeviceSP src, KisFloatRepresentation*, const QRect&);
+        /**
+         * This function transform a KisFloatRepresentation into a paint device, this function is colorspace independant,
+         * for Wavelet, Pyramid and FFT the data is allways the exact value of the channel stored in a float.
+         */
+        void transformFromFR(KisPaintDeviceSP dst, KisFloatRepresentation*, const QRect&);
+    private:
+        KisID m_id;
+};
+
+class KisMathToolboxFactoryRegistry : public KisGenericRegistry<KisMathToolbox*> {
+    public:
+        KisMathToolboxFactoryRegistry();
+        ~KisMathToolboxFactoryRegistry();
+};
+
+
+inline KisMathToolbox::KisWavelet* KisMathToolbox::initWavelet(KisPaintDeviceSP src, const QRect& rect) throw(std::bad_alloc )
+{
+    int size;
+    int maxrectsize = (rect.height() < rect.width()) ? rect.width() : rect.height();
+    for(size = 2; size < maxrectsize; size *= 2) ;
+    Q_INT32 depth = src->colorSpace()->nColorChannels();
+    return new KisWavelet(size, depth);
+}
+
+inline uint KisMathToolbox::fastWaveletTotalSteps(const QRect& rect)
+{
+    int size, steps;
+    int maxrectsize = (rect.height() < rect.width()) ? rect.width() : rect.height();
+    steps = 0;
+    for(size = 2; size < maxrectsize; size *= 2) steps += size / 2; ;
+    return steps;
+}
+
+#endif