svcore
1.9
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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