view data/fft/FFTCacheReader.h @ 795:dc20458f6f85 qt5

Don't need to check for Dataquay, and in fact we can pick up the wrong version if we do. Just assume it is available (building in e.g. sv subdir configuration)

/* -*- 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 2006-2009 Chris Cannam and QMUL.
    
    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_CACHE_READER_H_
#define _FFT_CACHE_READER_H_

#include "FFTCacheStorageType.h"
#include <stddef.h>

class FFTCacheReader
{
public:
    virtual ~FFTCacheReader() { }

    virtual size_t getWidth() const = 0;
    virtual size_t getHeight() const = 0;
	
    virtual float getMagnitudeAt(size_t x, size_t y) const = 0;
    virtual float getNormalizedMagnitudeAt(size_t x, size_t y) const = 0;
    virtual float getMaximumMagnitudeAt(size_t x) const = 0;
    virtual float getPhaseAt(size_t x, size_t y) const = 0;

    virtual void getValuesAt(size_t x, size_t y, float &real, float &imag) const = 0;
    virtual void getMagnitudesAt(size_t x, float *values, size_t minbin, size_t count, size_t step) const = 0;

    virtual bool haveSetColumnAt(size_t x) const = 0;

    virtual FFTCache::StorageType getStorageType() const = 0;
};

#endif