lbajardsilogic@0: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
lbajardsilogic@0: 
lbajardsilogic@0: /*
lbajardsilogic@0:     Sonic Visualiser
lbajardsilogic@0:     An audio file viewer and annotation editor.
lbajardsilogic@0:     Centre for Digital Music, Queen Mary, University of London.
lbajardsilogic@0:     This file copyright 2006 Chris Cannam.
lbajardsilogic@0:     
lbajardsilogic@0:     This program is free software; you can redistribute it and/or
lbajardsilogic@0:     modify it under the terms of the GNU General Public License as
lbajardsilogic@0:     published by the Free Software Foundation; either version 2 of the
lbajardsilogic@0:     License, or (at your option) any later version.  See the file
lbajardsilogic@0:     COPYING included with this distribution for more information.
lbajardsilogic@0: */
lbajardsilogic@0: 
lbajardsilogic@0: #ifndef _FFT_CACHE_H_
lbajardsilogic@0: #define _FFT_CACHE_H_
lbajardsilogic@0: 
lbajardsilogic@0: #include <cstdlib>
lbajardsilogic@0: #include <cmath>
lbajardsilogic@0: 
lbajardsilogic@0: //#include <stdint.h>
lbajardsilogic@0: #include "system/System.h"
lbajardsilogic@0: 
lbajardsilogic@0: class FFTCache
lbajardsilogic@0: {
lbajardsilogic@0: public:
lbajardsilogic@0:     virtual ~FFTCache() { }
lbajardsilogic@0: 
lbajardsilogic@0:     virtual size_t getWidth() const = 0;
lbajardsilogic@0:     virtual size_t getHeight() const = 0;
lbajardsilogic@0: 	
lbajardsilogic@0:     virtual void resize(size_t width, size_t height) = 0;
lbajardsilogic@0:     virtual void reset() = 0; // zero-fill or 1-fill as appropriate without changing size
lbajardsilogic@0: 	
lbajardsilogic@0:     virtual float getMagnitudeAt(size_t x, size_t y) const = 0;
lbajardsilogic@0:     virtual float getNormalizedMagnitudeAt(size_t x, size_t y) const = 0;
lbajardsilogic@0:     virtual float getMaximumMagnitudeAt(size_t x) const = 0;
lbajardsilogic@0:     virtual float getPhaseAt(size_t x, size_t y) const = 0;
lbajardsilogic@0: 
lbajardsilogic@0:     virtual void getValuesAt(size_t x, size_t y, float &real, float &imaginary) const = 0;
lbajardsilogic@0: 
lbajardsilogic@0:     virtual bool haveSetColumnAt(size_t x) const = 0;
lbajardsilogic@0: 
lbajardsilogic@0:     // may modify argument arrays
lbajardsilogic@0:     virtual void setColumnAt(size_t x, float *mags, float *phases, float factor) = 0;
lbajardsilogic@0: 
lbajardsilogic@0:     // may modify argument arrays
lbajardsilogic@0:     virtual void setColumnAt(size_t x, float *reals, float *imags) = 0;
lbajardsilogic@0: 
lbajardsilogic@0:     virtual void suspend() { }
lbajardsilogic@0: 
lbajardsilogic@0: protected:
lbajardsilogic@0:     FFTCache() { }
lbajardsilogic@0: };
lbajardsilogic@0: 
lbajardsilogic@0: 
lbajardsilogic@0: #endif