comparison data/fileio/FFTFuzzyAdapter.h @ 148:1a42221a1522

* Reorganising code base. This revision will not compile.
author Chris Cannam
date Mon, 31 Jul 2006 11:49:58 +0000
parents
children 59e7fe1b1003
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147:3a13b0d4934e 148:1a42221a1522
1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
2
3 /*
4 Sonic Visualiser
5 An audio file viewer and annotation editor.
6 Centre for Digital Music, Queen Mary, University of London.
7 This file copyright 2006 Chris Cannam.
8
9 This program is free software; you can redistribute it and/or
10 modify it under the terms of the GNU General Public License as
11 published by the Free Software Foundation; either version 2 of the
12 License, or (at your option) any later version. See the file
13 COPYING included with this distribution for more information.
14 */
15
16 #ifndef _FFT_FUZZY_ADAPTER_H_
17 #define _FFT_FUZZY_ADAPTER_H_
18
19 #include "FFTDataServer.h"
20
21 class FFTFuzzyAdapter
22 {
23 public:
24 FFTFuzzyAdapter(const DenseTimeValueModel *model,
25 int channel,
26 WindowType windowType,
27 size_t windowSize,
28 size_t windowIncrement,
29 size_t fftSize,
30 bool polar,
31 size_t fillFromColumn = 0);
32 ~FFTFuzzyAdapter();
33
34 size_t getWidth() const {
35 return m_server->getWidth() >> m_xshift;
36 }
37 size_t getHeight() const {
38 return m_server->getHeight() >> m_yshift;
39 }
40 float getMagnitudeAt(size_t x, size_t y) {
41 return m_server->getMagnitudeAt(x << m_xshift, y << m_yshift);
42 }
43 float getNormalizedMagnitudeAt(size_t x, size_t y) {
44 return m_server->getNormalizedMagnitudeAt(x << m_xshift, y << m_yshift);
45 }
46 float getMaximumMagnitudeAt(size_t x) {
47 return m_server->getMaximumMagnitudeAt(x << m_xshift);
48 }
49 float getPhaseAt(size_t x, size_t y) {
50 return m_server->getPhaseAt(x << m_xshift, y << m_yshift);
51 }
52 void getValuesAt(size_t x, size_t y, float &real, float &imaginary) {
53 m_server->getValuesAt(x << m_xshift, y << m_yshift, real, imaginary);
54 }
55 bool isColumnReady(size_t x) {
56 return m_server->isColumnReady(x << m_xshift);
57 }
58 bool isLocalPeak(size_t x, size_t y) {
59 float mag = getMagnitudeAt(x, y);
60 if (y > 0 && mag < getMagnitudeAt(x, y - 1)) return false;
61 if (y < getHeight() - 1 && mag < getMagnitudeAt(x, y + 1)) return false;
62 return true;
63 }
64 bool isOverThreshold(size_t x, size_t y, float threshold) {
65 return getMagnitudeAt(x, y) > threshold;
66 }
67
68 size_t getFillCompletion() const { return m_server->getFillCompletion(); }
69 size_t getFillExtent() const { return m_server->getFillExtent(); }
70
71 private:
72 FFTFuzzyAdapter(const FFTFuzzyAdapter &); // not implemented
73 FFTFuzzyAdapter &operator=(const FFTFuzzyAdapter &); // not implemented
74
75 FFTDataServer *m_server;
76 int m_xshift;
77 int m_yshift;
78 };
79
80 #endif