view data/fileio/FFTFuzzyAdapter.h @ 316:3a6725f285d6

* Make RemoteFile far more pervasive, and use it for local files as well
  so that we can handle both transparently.  Make it shallow copy with
  reference counting, so it can be used by value without having to worry
  about the cache file lifetime.  Use RemoteFile for MainWindow file-open
  functions, etc

/* -*- 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