evCodec.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 __evCodec_h
#define __evCodec_h


#include "evProcessObject.h"
#include "evField.h"
#include "evBitBuffer.h"
#include "evProgressReporter.h"


class evDataset;


class evCodec : public evProcessObject
{
public:
  evCodec(void);
  virtual ~evCodec(void);
  
  virtual const evString GetClassName(void) const
  {
    return(evString("evCodec"));
  }
  
  virtual int Encode(evBitBuffer &output_buffer,
                     evDataset &dataset,
                     evProgressReporter *progress_reporter = NULL) = 0;
  virtual int EncodeHeader(evFile &outfile, evDataset &dataset) const = 0;
  
  virtual int Decode(evBitBuffer &input_buffer,
                     evDataset &dataset,
                     evProgressReporter *progress_reporter = NULL) = 0;
  virtual int DecodeHeader(evFile &infile, evDataset &dataset) = 0;

  static evCodec *Create(const evString &compression_algorithm);
  
  unsigned int GetNumComponentsToCode(void) const;
  void SetComponentsToCode(const unsigned int num_components_to_code,
                           const unsigned int *components_to_code = NULL);
  unsigned int FindComponent(const unsigned int component) const;

protected:
  
  std::vector<unsigned int> ComponentsToCode;

private:

};


inline evCodec::evCodec(void)
{
}


inline evCodec::~evCodec(void)
{
}


inline unsigned int evCodec::GetNumComponentsToCode(void) const
{
  return(this->ComponentsToCode.size());
}


inline unsigned int evCodec::FindComponent(const unsigned int component) const
{
  return(std::find(this->ComponentsToCode.begin(),
                   this->ComponentsToCode.end(),
                   component) - this->ComponentsToCode.begin());
}


#endif