svcore  1.9
FFTCacheReader.h
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00001 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
00002 
00003 /*
00004     Sonic Visualiser
00005     An audio file viewer and annotation editor.
00006     Centre for Digital Music, Queen Mary, University of London.
00007     This file copyright 2006-2009 Chris Cannam and QMUL.
00008     
00009     This program is free software; you can redistribute it and/or
00010     modify it under the terms of the GNU General Public License as
00011     published by the Free Software Foundation; either version 2 of the
00012     License, or (at your option) any later version.  See the file
00013     COPYING included with this distribution for more information.
00014 */
00015 
00016 #ifndef _FFT_CACHE_READER_H_
00017 #define _FFT_CACHE_READER_H_
00018 
00019 #include "FFTCacheStorageType.h"
00020 #include <stddef.h>
00021 
00022 class FFTCacheReader
00023 {
00024 public:
00025     virtual ~FFTCacheReader() { }
00026 
00027     virtual int getWidth() const = 0;
00028     virtual int getHeight() const = 0;
00029         
00030     virtual float getMagnitudeAt(int x, int y) const = 0;
00031     virtual float getNormalizedMagnitudeAt(int x, int y) const = 0;
00032     virtual float getMaximumMagnitudeAt(int x) const = 0;
00033     virtual float getPhaseAt(int x, int y) const = 0;
00034 
00035     virtual void getValuesAt(int x, int y, float &real, float &imag) const = 0;
00036     virtual void getMagnitudesAt(int x, float *values, int minbin, int count, int step) const = 0;
00037 
00038     virtual bool haveSetColumnAt(int x) const = 0;
00039 
00040     virtual FFTCache::StorageType getStorageType() const = 0;
00041 };
00042 
00043 #endif