view data/fileio/FFTFuzzyAdapter.h @ 492:23945cdd7161

* Update RDF query stuff again so as to set up a temporary datastore
  each time we want to query over an rdf file, instead of using rasqal
  against the file.  Seems the only way to avoid threading and storage
  management issues when trying to load from a single-source file and
  perform queries against our main datastore at the same time.  Maybe.

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam.
    
    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.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _FFT_FUZZY_ADAPTER_H_
#define _FFT_FUZZY_ADAPTER_H_

#include "FFTDataServer.h"

class FFTFuzzyAdapter
{
public:
    FFTFuzzyAdapter(const DenseTimeValueModel *model,
                    int channel,
                    WindowType windowType,
                    size_t windowSize,
                    size_t windowIncrement,
                    size_t fftSize,
                    bool polar,
                    size_t fillFromColumn = 0);
    ~FFTFuzzyAdapter();

    size_t getWidth() const {
        return m_server->getWidth() >> m_xshift;
    }
    size_t getHeight() const {
        return m_server->getHeight() >> m_yshift;
    }
    float getMagnitudeAt(size_t x, size_t y) {
        return m_server->getMagnitudeAt(x << m_xshift, y << m_yshift);
    }
    float getNormalizedMagnitudeAt(size_t x, size_t y) {
        return m_server->getNormalizedMagnitudeAt(x << m_xshift, y << m_yshift);
    }
    float getMaximumMagnitudeAt(size_t x) {
        return m_server->getMaximumMagnitudeAt(x << m_xshift);
    }
    float getPhaseAt(size_t x, size_t y) {
        return m_server->getPhaseAt(x << m_xshift, y << m_yshift);
    }
    void getValuesAt(size_t x, size_t y, float &real, float &imaginary) {
        m_server->getValuesAt(x << m_xshift, y << m_yshift, real, imaginary);
    }
    bool isColumnReady(size_t x) {
        return m_server->isColumnReady(x << m_xshift);
    }
    bool isLocalPeak(size_t x, size_t y) {
        float mag = getMagnitudeAt(x, y);
        if (y > 0 && mag < getMagnitudeAt(x, y - 1)) return false;
        if (y < getHeight() - 1 && mag < getMagnitudeAt(x, y + 1)) return false;
        return true;
    }
    bool isOverThreshold(size_t x, size_t y, float threshold) {
        return getMagnitudeAt(x, y) > threshold;
    }

    size_t getFillCompletion() const { return m_server->getFillCompletion(); }
    size_t getFillExtent() const { return m_server->getFillExtent(); }

private:
    FFTFuzzyAdapter(const FFTFuzzyAdapter &); // not implemented
    FFTFuzzyAdapter &operator=(const FFTFuzzyAdapter &); // not implemented

    FFTDataServer *m_server;
    int m_xshift;
    int m_yshift;
};

#endif