diff data/fileio/FFTFuzzyAdapter.h @ 0:fc9323a41f5a

start base : Sonic Visualiser sv1-1.0rc1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/data/fileio/FFTFuzzyAdapter.h	Fri May 11 09:08:14 2007 +0000
@@ -0,0 +1,80 @@
+/* -*- 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_FUZZY_ADAPTER_H_
+#define _FFT_FUZZY_ADAPTER_H_
+
+#include "FFTDataServer.h"
+
+class FFTFuzzyAdapter
+{
+public:
+    FFTFuzzyAdapter(const DenseTimeValueModel *model,
+                    int channel,
+                    WindowType windowType,
+                    size_t windowSize,
+                    size_t windowIncrement,
+                    size_t fftSize,
+                    bool polar,
+                    size_t fillFromColumn = 0);
+    ~FFTFuzzyAdapter();
+
+    size_t getWidth() const {
+        return m_server->getWidth() >> m_xshift;
+    }
+    size_t getHeight() const {
+        return m_server->getHeight() >> m_yshift;
+    }
+    float getMagnitudeAt(size_t x, size_t y) {
+        return m_server->getMagnitudeAt(x << m_xshift, y << m_yshift);
+    }
+    float getNormalizedMagnitudeAt(size_t x, size_t y) {
+        return m_server->getNormalizedMagnitudeAt(x << m_xshift, y << m_yshift);
+    }
+    float getMaximumMagnitudeAt(size_t x) {
+        return m_server->getMaximumMagnitudeAt(x << m_xshift);
+    }
+    float getPhaseAt(size_t x, size_t y) {
+        return m_server->getPhaseAt(x << m_xshift, y << m_yshift);
+    }
+    void getValuesAt(size_t x, size_t y, float &real, float &imaginary) {
+        m_server->getValuesAt(x << m_xshift, y << m_yshift, real, imaginary);
+    }
+    bool isColumnReady(size_t x) {
+        return m_server->isColumnReady(x << m_xshift);
+    }
+    bool isLocalPeak(size_t x, size_t y) {
+        float mag = getMagnitudeAt(x, y);
+        if (y > 0 && mag < getMagnitudeAt(x, y - 1)) return false;
+        if (y < getHeight() - 1 && mag < getMagnitudeAt(x, y + 1)) return false;
+        return true;
+    }
+    bool isOverThreshold(size_t x, size_t y, float threshold) {
+        return getMagnitudeAt(x, y) > threshold;
+    }
+
+    size_t getFillCompletion() const { return m_server->getFillCompletion(); }
+    size_t getFillExtent() const { return m_server->getFillExtent(); }
+
+private:
+    FFTFuzzyAdapter(const FFTFuzzyAdapter &); // not implemented
+    FFTFuzzyAdapter &operator=(const FFTFuzzyAdapter &); // not implemented
+
+    FFTDataServer *m_server;
+    int m_xshift;
+    int m_yshift;
+};
+
+#endif