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Diffstat (limited to 'examples/datavis3d/spectrum/spectrumapp/spectrum.h')
| -rw-r--r-- | examples/datavis3d/spectrum/spectrumapp/spectrum.h | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/examples/datavis3d/spectrum/spectrumapp/spectrum.h b/examples/datavis3d/spectrum/spectrumapp/spectrum.h deleted file mode 100644 index 244a5892..00000000 --- a/examples/datavis3d/spectrum/spectrumapp/spectrum.h +++ /dev/null @@ -1,133 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the examples of QtDataVis3D. -** -** $QT_BEGIN_LICENSE:BSD$ -** You may use this file under the terms of the BSD license as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names -** of its contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef SPECTRUM_H -#define SPECTRUM_H - -#include <qglobal.h> -#include "utils.h" -#include "fftreal_wrapper.h" // For FFTLengthPowerOfTwo - -//----------------------------------------------------------------------------- -// Constants -//----------------------------------------------------------------------------- - -// Number of audio samples used to calculate the frequency spectrum -const int SpectrumLengthSamples = PowerOfTwo<FFTLengthPowerOfTwo>::Result; - -// Number of bands in the frequency spectrum -const int SpectrumNumBands = 30; - -// Lower bound of first band in the spectrum -const qreal SpectrumLowFreq = 0.0; // Hz - -// Upper band of last band in the spectrum -const qreal SpectrumHighFreq = 1000.0; // Hz - -// Waveform window size in microseconds -const qint64 WaveformWindowDuration = 500 * 1000; - -// Fudge factor used to calculate the spectrum bar heights -const qreal SpectrumAnalyserMultiplier = 0.15; - -// Disable message timeout -const int NullMessageTimeout = -1; - - -//----------------------------------------------------------------------------- -// Types and data structures -//----------------------------------------------------------------------------- - -enum WindowFunction { - NoWindow, - HannWindow -}; - -const WindowFunction DefaultWindowFunction = HannWindow; - -struct Tone -{ - Tone(qreal freq = 0.0, qreal amp = 0.0) - : frequency(freq), amplitude(amp) - { } - - // Start and end frequencies for swept tone generation - qreal frequency; - - // Amplitude in range [0.0, 1.0] - qreal amplitude; -}; - -struct SweptTone -{ - SweptTone(qreal start = 0.0, qreal end = 0.0, qreal amp = 0.0) - : startFreq(start), endFreq(end), amplitude(amp) - { Q_ASSERT(end >= start); } - - SweptTone(const Tone &tone) - : startFreq(tone.frequency), endFreq(tone.frequency), amplitude(tone.amplitude) - { } - - // Start and end frequencies for swept tone generation - qreal startFreq; - qreal endFreq; - - // Amplitude in range [0.0, 1.0] - qreal amplitude; -}; - - -//----------------------------------------------------------------------------- -// Macros -//----------------------------------------------------------------------------- - -// Macro which connects a signal to a slot, and which causes application to -// abort if the connection fails. This is intended to catch programming errors -// such as mis-typing a signal or slot name. It is necessary to write our own -// macro to do this - the following idiom -// Q_ASSERT(connect(source, signal, receiver, slot)); -// will not work because Q_ASSERT compiles to a no-op in release builds. - -#define CHECKED_CONNECT(source, signal, receiver, slot) \ - if (!connect(source, signal, receiver, slot)) \ - qt_assert_x(Q_FUNC_INFO, "CHECKED_CONNECT failed", __FILE__, __LINE__); - -#endif // SPECTRUM_H - |