evWaveletTransform.h

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/*
 *
 * EVITA: Efficient Visualization of Terascale Datasets
 * Copyright (C) 2000-2016  Team Evita
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 * 
 * This library 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
 * Library General Public License for more details.
 * 
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 675 Mass Ave, Cambridge,
 * MA 02139, USA.
 *
 */


#ifndef __evWaveletTransform_h
#define __evWaveletTransform_h


#include "evProcessObject.h"
#include "evVectorField.h"
#include "evAlphaField.h"


class evWaveletTransform : public evProcessObject
{
 public:
  evWaveletTransform(void);
  virtual ~evWaveletTransform(void);

  virtual const evString GetClassName(void) const
    {
      return(evString("evWaveletTransform"));
    }
  
  void SetNumScales(int num_scales);
  unsigned int GetNumScales(void) const;

  virtual int ForwardTransform(evVectorField &field,
                               const evAddress &origin) const;
  virtual int ForwardTransform(evVectorField &field,
                               evAlphaField &mask,
                               const evAddress &origin) const;
  virtual int InverseTransform(evVectorField &field,
                               const evAddress &origin) const;
  virtual int InverseTransform(evVectorField &field,
                               const evAddress &origin,
                               const evAddress &size,
                               const unsigned int start_scale) const;
  virtual int InverseTransform(evVectorField &field,
                               evAlphaField &mask,
                               const evAddress &origin) const;
  virtual int InverseTransform(evVectorField &field,
                               evAlphaField &mask,
                               const evAddress &origin,
                               const evAddress &size,
                               const unsigned int start_scale) const;
  

 protected:
  QccWAVWavelet Wavelet;
  unsigned int NumScales;

  virtual int WaveletAnalysis(const QccVector input_data,
                              QccVector output_data,
                              QccVector subsequence,
                              const QccVector input_mask,
                              QccVector output_mask,
                              const int signal_length,
                              const int phase) const;
  virtual int WaveletAnalysisSubsequence(const QccVector input_data,
                                         QccVector output_data,
                                         QccVector subsequence,
                                         const int subsequence_start,
                                         const int subsequence_length,
                                         const int subsequence_phase,
                                         const int midpoint) const;
  virtual int WaveletSynthesis(const QccVector input_data,
                               QccVector output_data,
                               QccVector subsequence,
                               const QccVector input_mask,
                               QccVector output_mask,
                               const int signal_length,
                               const int phase) const;
  virtual int WaveletSynthesisSubsequence(const QccVector input_data,
                                          QccVector output_data,
                                          QccVector subsequence,
                                          const int subsequence_start,
                                          const int subsequence_length,
                                          const int subsequence_phase,
                                          const int midpoint) const;

 private:
};


inline evWaveletTransform::evWaveletTransform(void)
{
  this->NumScales = EVDEFAULT_NUMSCALES;
  QccWAVWaveletInitialize(&this->Wavelet);
}


inline evWaveletTransform::~evWaveletTransform(void)
{
  QccWAVWaveletFree(&this->Wavelet);
}


inline void evWaveletTransform::SetNumScales(int num_scales)
{
  this->NumScales = num_scales;
}


inline unsigned int evWaveletTransform::GetNumScales(void) const
{
  return(this->NumScales);
}


#endif