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49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
//
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// Oscilloscope.h
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// interface
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//
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// Created by Philip on 1/28/13.
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// Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
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//
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#ifndef __interface__Oscilloscope__
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#define __interface__Oscilloscope__
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#include <cassert>
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class Oscilloscope {
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public:
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Oscilloscope(int width, int height, bool isEnabled);
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~Oscilloscope();
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void addSamples(unsigned ch, short const* data, unsigned n);
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void render(int x, int y);
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static unsigned const MAX_CHANNELS = 3;
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static unsigned const MAX_SAMPLES_PER_CHANNEL = 4096;
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volatile bool enabled;
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volatile bool inputPaused;
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void setLowpass(float w) { assert(w > 0.0f && w <= 1.0f); _valLowpass = w; }
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void setDownsampling(unsigned f) { assert(f > 0); _valDownsample = f; }
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private:
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// don't copy/assign
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Oscilloscope(Oscilloscope const&); // = delete;
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Oscilloscope& operator=(Oscilloscope const&); // = delete;
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// state variables
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unsigned _valWidth;
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unsigned _valHeight;
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short* _arrSamples;
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short* _arrVertices;
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unsigned _arrWritePos[MAX_CHANNELS];
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float _valLowpass;
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unsigned _valDownsample;
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};
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#endif /* defined(__interface__oscilloscope__) */
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