Mercurial > hg > svcore
view data/fft/FFTCache.h @ 299:576be0d0d218
* Merge transform directory from sv-match-alignment branch
(the previous comment included notes for this stuff, but I missed it
in the actual merge)
* Fix crash when a transform fails to create an output model and the
thread that created the transform then deletes its input model thinking
it's no longer needed, even though the transform run thread is still
using it -- fix is to wait() on the transform before returning the
null output model
author | Chris Cannam |
---|---|
date | Fri, 28 Sep 2007 16:15:06 +0000 |
parents | e5879045d22b |
children | 02d2ad95ea52 |
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/* -*- 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_CACHE_H_ #define _FFT_CACHE_H_ #include <cstdlib> #include <cmath> #include <stdint.h> class FFTCache { public: virtual ~FFTCache() { } virtual size_t getWidth() const = 0; virtual size_t getHeight() const = 0; virtual void resize(size_t width, size_t height) = 0; virtual void reset() = 0; // zero-fill or 1-fill as appropriate without changing size 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 &imaginary) const = 0; virtual bool haveSetColumnAt(size_t x) const = 0; // may modify argument arrays virtual void setColumnAt(size_t x, float *mags, float *phases, float factor) = 0; // may modify argument arrays virtual void setColumnAt(size_t x, float *reals, float *imags) = 0; virtual void suspend() { } protected: FFTCache() { } }; #endif