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Diffstat (limited to 'examples/spectrum/spectrumapp/utils.h')
-rw-r--r-- | examples/spectrum/spectrumapp/utils.h | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/examples/spectrum/spectrumapp/utils.h b/examples/spectrum/spectrumapp/utils.h deleted file mode 100644 index f0ae5633..00000000 --- a/examples/spectrum/spectrumapp/utils.h +++ /dev/null @@ -1,90 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 Digia Plc -** All rights reserved. -** For any questions to Digia, please use contact form at http://qt.digia.com -** -** This file is part of the QtDataVis3D module. -** -** Licensees holding valid Qt Enterprise licenses may use this file in -** accordance with the Qt Enterprise License Agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. -** -** If you have questions regarding the use of this file, please use -** contact form at http://qt.digia.com -** -****************************************************************************/ - -#ifndef UTILS_H -#define UTILS_H - -#include <QtCore/qglobal.h> -#include <QDebug> - -QT_FORWARD_DECLARE_CLASS(QAudioFormat) - -//----------------------------------------------------------------------------- -// Miscellaneous utility functions -//----------------------------------------------------------------------------- - -qint64 audioDuration(const QAudioFormat &format, qint64 bytes); -qint64 audioLength(const QAudioFormat &format, qint64 microSeconds); - -QString formatToString(const QAudioFormat &format); - -qreal nyquistFrequency(const QAudioFormat &format); - -// Scale PCM value to [-1.0, 1.0] -qreal pcmToReal(qint16 pcm); - -// Scale real value in [-1.0, 1.0] to PCM -qint16 realToPcm(qreal real); - -// Check whether the audio format is PCM -bool isPCM(const QAudioFormat &format); - -// Check whether the audio format is signed, little-endian, 16-bit PCM -bool isPCMS16LE(const QAudioFormat &format); - -// Compile-time calculation of powers of two - -template<int N> class PowerOfTwo -{ public: static const int Result = PowerOfTwo<N-1>::Result * 2; }; - -template<> class PowerOfTwo<0> -{ public: static const int Result = 1; }; - - -//----------------------------------------------------------------------------- -// Debug output -//----------------------------------------------------------------------------- - -class NullDebug -{ -public: - template <typename T> - NullDebug& operator<<(const T&) { return *this; } -}; - -inline NullDebug nullDebug() { return NullDebug(); } - -#ifdef LOG_ENGINE -# define ENGINE_DEBUG qDebug() -#else -# define ENGINE_DEBUG nullDebug() -#endif - -#ifdef LOG_SPECTRUMANALYSER -# define SPECTRUMANALYSER_DEBUG qDebug() -#else -# define SPECTRUMANALYSER_DEBUG nullDebug() -#endif - -#ifdef LOG_WAVEFORM -# define WAVEFORM_DEBUG qDebug() -#else -# define WAVEFORM_DEBUG nullDebug() -#endif - -#endif // UTILS_H |