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MCRM.cpp
/*
 * C S O U N D
 *
 * L I C E N S E
 *
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#include "CppSound.hpp"
#include "MCRM.hpp"
#include <boost/numeric/ublas/operation.hpp>

namespace csound
{
  MCRM::MCRM()
  {
  }

  MCRM::~MCRM()
  {
  }

  void MCRM::setDepth(int depth)
  {
    this->depth = depth;
  }

  void MCRM::resize(size_t count)
  {
    for(size_t i = 0; i < count; i++)
      {
        transformations.push_back(createTransform());
      }
    weights.resize(transformations.size(), transformations.size());
    for(size_t precursor = 0; precursor < transformations.size(); precursor++)
      {
        for(size_t successor = 0; successor < transformations.size(); successor++)
          {
            weights(precursor,successor) = 1.0;
          }
      }
  }

  void MCRM::setTransformationElement(size_t index, size_t row, size_t column, double value)
  {
    transformations[index](row,column) = value;
  }

  void MCRM::setWeight(size_t precursor, size_t successor, double weight)
  {
    weights(precursor,successor) = weight;
  }

  void MCRM::iterate(int d, size_t p, const Event &event, double weight)
  {
    d--;
    if(d < 0)
      {
        double velocity = event.getVelocity() * weight;
        if(velocity > 0.0)
          {
            score.push_back(event);
          }
      }
    else
      {
        for(size_t s = 0; s < transformations.size(); s++)
          {
            const ublas::matrix<double> &t = transformations[s];
            Event e;
            ublas::axpy_prod(t, event, e);
            double w = 0.0;
            if(weight == -1.0)
              {
                w = 1.0;
              }
            else
              {
                w = weights(p,s) * weight;
              }
            iterate(d, s, e, w);
          }
      }
  }

  void MCRM::generate()
  {
    Event event;
    event.setStatus(144);
    event.setVelocity(64);
    event.setKey(60);
    event.setDuration(1);
    double weight = -1;
    iterate(depth, 0, event, weight);
  }

00108   void MCRM::produceOrTransform(Score &score,
                                size_t beginAt,
                                size_t endAt,
                                const ublas::matrix<double> &coordinates)
  {
    generate();
    ScoreNode::produceOrTransform(score, beginAt, endAt, coordinates);
  }
}

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