diff options
Diffstat (limited to 'examples/mobile/guitartuner')
66 files changed, 0 insertions, 5639 deletions
diff --git a/examples/mobile/guitartuner/guitartuner.pro b/examples/mobile/guitartuner/guitartuner.pro deleted file mode 100644 index 9478f380..00000000 --- a/examples/mobile/guitartuner/guitartuner.pro +++ /dev/null @@ -1,89 +0,0 @@ -#------------------------------------------------- -# -# Project created by QtCreator 2010-10-22T14:28:56 -# -#------------------------------------------------- - -QT += core gui widgets - -TARGET = guitartuner -TEMPLATE = app - -ICON = images/guitartuner_icon.svg - -SOURCES += src/main.cpp\ - src/guitartuner.cpp \ - src/voicegenerator.cpp \ - src/voiceanalyzer.cpp \ - src/guitartunerui.cpp \ - src/fastfouriertransformer.cpp - -HEADERS += src/guitartuner.h \ - src/voicegenerator.h \ - src/voiceanalyzer.h \ - src/constants.h \ - src/guitartunerui.h \ - src/fastfouriertransformer.h - -FORMS += src/guitartunerui.ui - -VERSION = 1.2.0 - -symbian { - INCLUDEPATH += /epoc32/include/mmf/common - INCLUDEPATH += /epoc32/include/mmf/server - LIBS += -lmmfdevsound - TARGET.UID3 = 0xEC46D2C8 - # TARGET.CAPABILITY += - # TARGET.EPOCSTACKSIZE = 0x14000 - # TARGET.EPOCHEAPSIZE = 0x020000 0x1000000 -} - -RESOURCES += \ - guitartuner.qrc - -# Avoid auto screen rotation -DEFINES += ORIENTATIONLOCK - -symbian { - contains(DEFINES, ORIENTATIONLOCK):LIBS += -lavkon -leikcore -leiksrv -lcone -} - - -# Add mobility into Qt's CONFIG, and add multimedia into MOBILITY. - -win32 { - QT += multimedia - RC_FILE = src/guitartuner.rc -} -else { - CONFIG += mobility - MOBILITY += multimedia -} - -symbian { - TARGET.CAPABILITY = UserEnvironment -} - -# Add declarative module -QT += declarative - -OTHER_FILES += \ - src/application.qml \ - src/mycomponents/Adjuster.qml \ - src/mycomponents/adjustbars.js \ - src/mycomponents/ToggleButton.qml - -OTHER_FILES += \ - src/mycomponents/NotesModel.qml \ - src/mycomponents/NoteButtonView.qml \ - src/mycomponents/Meter.qml - -unix:!symbian { - maemo5 { - target.path = /opt/usr/bin - } else { - target.path = /usr/local/bin - } - INSTALLS += target -} diff --git a/examples/mobile/guitartuner/guitartuner.qrc b/examples/mobile/guitartuner/guitartuner.qrc deleted file mode 100644 index d8ba0199..00000000 --- a/examples/mobile/guitartuner/guitartuner.qrc +++ /dev/null @@ -1,43 +0,0 @@ -<RCC> - <qresource prefix="/"> - <file>src/application.qml</file> - <file>src/mycomponents/adjustbars.js</file> - <file>src/mycomponents/Adjuster.qml</file> - <file>src/mycomponents/Meter.qml</file> - <file>src/mycomponents/NoteButtonView.qml</file> - <file>src/mycomponents/NotesModel.qml</file> - <file>src/mycomponents/ToggleButton.qml</file> - <file>src/mycomponents/images/meterBG.png</file> - <file>src/mycomponents/images/pointerShadow.png</file> - <file>src/mycomponents/images/sensitivity.png</file> - <file>src/mycomponents/images/tuner_a.png</file> - <file>src/mycomponents/images/tuner_a_on.png</file> - <file>src/mycomponents/images/tuner_b.png</file> - <file>src/mycomponents/images/tuner_b_on.png</file> - <file>src/mycomponents/images/tuner_d.png</file> - <file>src/mycomponents/images/tuner_d_on.png</file> - <file>src/mycomponents/images/tuner_e.png</file> - <file>src/mycomponents/images/tuner_e_on.png</file> - <file>src/mycomponents/images/tuner_g.png</file> - <file>src/mycomponents/images/tuner_g_on.png</file> - <file>src/mycomponents/images/voicemode_off.png</file> - <file>src/mycomponents/images/voicemode_on.png</file> - <file>src/mycomponents/images/volume.png</file> - <file>src/mycomponents/images/volume_off.png</file> - <file>src/mycomponents/images/guitartuner_skin.png</file> - <file>src/mycomponents/images/power.png</file> - <file>src/mycomponents/images/tuner_auto.png</file> - <file>src/mycomponents/images/tuner_auto_on.png</file> - <file>src/mycomponents/images/big_a.png</file> - <file>src/mycomponents/images/big_b.png</file> - <file>src/mycomponents/images/big_d.png</file> - <file>src/mycomponents/images/big_e.png</file> - <file>src/mycomponents/images/big_g.png</file> - <file>src/mycomponents/images/glowing_a.png</file> - <file>src/mycomponents/images/glowing_b.png</file> - <file>src/mycomponents/images/glowing_d.png</file> - <file>src/mycomponents/images/glowing_e.png</file> - <file>src/mycomponents/images/glowing_g.png</file> - <file>src/mycomponents/images/pointer.png</file> - </qresource> -</RCC> diff --git a/examples/mobile/guitartuner/images/guitartab.svg b/examples/mobile/guitartuner/images/guitartab.svg deleted file mode 100644 index 9d88d5d2..00000000 --- a/examples/mobile/guitartuner/images/guitartab.svg +++ /dev/null @@ -1,174 +0,0 @@ -<?xml version="1.0" encoding="UTF-8" standalone="no"?> -<!-- Created with Inkscape (http://www.inkscape.org/) --> - 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For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -import QtQuick 1.0 -import "mycomponents" - -/* The base canvas for all QML drawing. */ -Rectangle { - id: application - - property int targetNoteIndex: 0 - property alias frequency: noteChooser.currentFrequency - //Data provided to C++. - property bool isInput: true - property bool isMuted: false - property bool isAuto: true - property alias maxVoiceDifference: voiceDifferenceMeter.maxValue - property real volume: 0.5 - property real sensitivity: 0.5 - - //Signals to C++. - signal volumeChanged(real volume) - signal microphoneSensitivityChanged(real sensitivity) - signal targetFrequencyChanged(real frequency) - signal modeChanged(bool isInput) - signal muteStateChanged(bool isMuted) - - //Slots for signals coming from C++. - function voiceDifferenceChanged(difference) { - if (isAuto) timer.running = true; - voiceDifferenceMeter.valueChanged(difference); - noteImage.glowing = false - } - function correctFrequencyObtained() { - noteImage.glowing = true - } - function lowVoice() { - noteImage.glowing = false - } - - //Private function for changing the target frequency automatically. - function calculateTargetFrequency(difference) { - var tempDifference = Math.abs(difference); - var tempIndex = targetNoteIndex - while (!(difference < 0 && tempIndex == 0) && - tempDifference >= notes.get(tempIndex-(difference<0)).interval/2) { - tempDifference -= notes.get(tempIndex-(difference<0)).interval; - tempIndex += difference/Math.abs(difference); - } - if (tempIndex != targetNoteIndex) { - targetNoteIndex = tempIndex - noteChooser.currentFrequency = notes.get(targetNoteIndex).frequency; - targetFrequencyChanged(frequency); - } - } - - width: 360; height: 640 - color: "black" - - //Provides data for functions. - NotesModel {id: notes} - - /* A timer for changing the target frequency automatically. - * This is needed for avoiding recursion. */ - Timer { - id: timer - - interval: 1 - onTriggered: calculateTargetFrequency(voiceDifferenceMeter.value) - } - - //A meter for showing the difference between current and target frequency. - Meter { - id: voiceDifferenceMeter - - maxValue: 12 - minValue: -maxValue - height: imageSize.height/background.sourceSize.height*parent.height - width: imageSize.width/background.sourceSize.width*parent.width - anchors { - topMargin: 100/background.sourceSize.height*parent.height - horizontalCenter: parent.horizontalCenter - top: parent.top - } - } - - Image { - id: background - - anchors.fill: parent - smooth: true - source: "./mycomponents/images/guitartuner_skin.png" - } - - //A button for quitting the application. - Image { - id: quitButton - - width: sourceSize.width/background.sourceSize.width*parent.width - height: sourceSize.height/background.sourceSize.height*parent.height - source: "./mycomponents/images/power.png" - smooth: true - KeyNavigation.up: volumeAdjuster - KeyNavigation.down: modeButton - Keys.onEnterPressed: Qt.quit() - anchors{ - leftMargin: 297/background.sourceSize.width*parent.width - left: parent.left; - topMargin: 17/background.sourceSize.height*parent.height - top: parent.top - } - - MouseArea { - anchors.fill: parent - onClicked: Qt.quit() - } - } - - //An image for showing the target note. - Image { - id: noteImage - - property bool glowing: false - - width: sourceSize.width/background.sourceSize.width*parent.width - height: sourceSize.height/background.sourceSize.height*parent.height - source: glowing ? notes.get(targetNoteIndex).glowSource : notes.get(targetNoteIndex).bigSource - - anchors { - topMargin: 273/background.sourceSize.height*parent.height - top: parent.top - horizontalCenter: parent.horizontalCenter - } - } - - //A button for choosing the input/output mode. - Image { - id: modeButton - - function buttonPressed() { - isInput = !isInput - modeChanged(isInput) - if (isInput) { - soundIcons.source = "./mycomponents/images/sensitivity.png" - source = "./mycomponents/images/voicemode_off.png" - volumeAdjuster.setValue(sensitivity) - } - else { - //Change off from "auto" mode - if (isAuto) { - noteChooser.pushButton(targetNoteIndex) - } - if (isMuted) { - soundIcons.source = "./mycomponents/images/volume_off.png"; - } - else - soundIcons.source = "./mycomponents/images/volume.png" - source = "./mycomponents/images/voicemode_on.png" - volumeAdjuster.setValue(volume) - } - } - - width: sourceSize.width/background.sourceSize.width*parent.width - height: sourceSize.height/background.sourceSize.height*parent.height - smooth: true - source: "./mycomponents/images/voicemode_off.png" - KeyNavigation.up: quitButton - KeyNavigation.down: noteChooser - Keys.onEnterPressed: buttonPressed() - anchors { - leftMargin: 16/background.sourceSize.width*parent.width - left: parent.left - topMargin: 353/background.sourceSize.height*parent.height - top: parent.top - } - - MouseArea { - anchors.fill: parent - onPressed: { - parent.focus = true - parent.scale = 0.95 - } - onReleased: { - parent.scale = 1/0.95 - } - onClicked: parent.buttonPressed() - } - } - - //Buttons for choosing the target note. - NoteButtonView { - id: noteChooser - - width: parent.width*0.95; height: width/model.count - onNoteSelected: { - if (note == "Auto") { - if (!isAuto) { - isAuto = true - } - if (!isInput) { - modeButton.buttonPressed() - } - } - else { - timer.running = false; - isAuto = false - targetNoteIndex = index - targetFrequencyChanged(frequency) - } - focus = true - } - KeyNavigation.up: modeButton - KeyNavigation.down: soundIcons - anchors { - horizontalCenter: parent.horizontalCenter - topMargin: 454/background.sourceSize.height*parent.height - top: parent.top - } - } - - //An element for showing the mode and changing the mute state. - Image { - id: soundIcons - - function stateChanged() { - isMuted = !isMuted - muteStateChanged(isMuted) - if (isMuted) { - source = "qrc:/src/mycomponents/images/volume_off.png" - } - else { - source = "qrc:/src/mycomponents/images/volume.png" - } - } - - width: sourceSize.width/background.sourceSize.width*parent.width - height: sourceSize.height/background.sourceSize.height*parent.height - smooth: true - source: "./mycomponents/images/sensitivity.png" - Keys.onEnterPressed: stateChanged() - KeyNavigation.up: noteChooser - KeyNavigation.down: quitButton - KeyNavigation.left: volumeAdjuster - KeyNavigation.right: volumeAdjuster - anchors { - leftMargin: 42/background.sourceSize.width*parent.width - left: parent.left - topMargin: 565/background.sourceSize.height*parent.height - top: parent.top - } - - MouseArea { - anchors.fill: parent - onClicked: { - if (!isInput) { - parent.stateChanged() - } - parent.focus = true - } - } - } - - //An element for adjusting volume. - Adjuster { - id: volumeAdjuster - - max: 1 - value: 0.5 - width: 222/background.sourceSize.width*parent.width - height: parent.height*0.1 - onFocusChangedByClick: focus = true - onArrowPressedWhenValueOverLimits: soundIcons.focus = true - KeyNavigation.up: modeButton - KeyNavigation.down: quitButton - anchors { - leftMargin: 98/background.sourceSize.width*parent.width - left: parent.left - verticalCenter: soundIcons.verticalCenter - } - onValueChanged: { - if (isInput) { - sensitivity = value; - microphoneSensitivityChanged(1-sensitivity) - } - else { - volume = value - volumeChanged(volume) - } - } - } -} diff --git a/examples/mobile/guitartuner/src/constants.h b/examples/mobile/guitartuner/src/constants.h deleted file mode 100644 index c1203835..00000000 --- a/examples/mobile/guitartuner/src/constants.h +++ /dev/null @@ -1,55 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef CONSTANTS_H -#define CONSTANTS_H - -#define M_MAX_AMPLITUDE_8BIT_SIGNED 127 -#define M_MAX_AMPLITUDE_8BIT_UNSIGNED 255 -#define M_MAX_AMPLITUDE_16BIT_SIGNED 32767 -#define M_MAX_AMPLITUDE_16BIT_UNSIGNED 65535 - -#define M_TWELTH_ROOT_OF_2 1.05946309435930000000 - -// M_SAMPLE_COUNT_MULTIPLIER is 2/(M_TWELTH_ROOT_OF_2 - 1) -#define M_SAMPLE_COUNT_MULTIPLIER 33.63430749021150000000 - -#endif // CONSTANTS_H diff --git a/examples/mobile/guitartuner/src/fastfouriertransformer.cpp b/examples/mobile/guitartuner/src/fastfouriertransformer.cpp deleted file mode 100644 index 47d1d783..00000000 --- a/examples/mobile/guitartuner/src/fastfouriertransformer.cpp +++ /dev/null @@ -1,185 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "fastfouriertransformer.h" -#include "math.h" - -#define STIN inline -#define __STATIC - -#include "fftpack.c" - -// called by __ogg_fdrffti -__STATIC void drfti1(int n, float *wa, int *ifac); -void __ogg_fdrffti(int n, float *wsave, int *ifac); -void __ogg_fdcosqi(int n, float *wsave, int *ifac); -// called by drftf1 -STIN void dradf2(int ido,int l1,float *cc,float *ch,float *wa1); -// called by drftf1 -STIN void dradf4(int ido,int l1,float *cc,float *ch,float *wa1, - float *wa2,float *wa3); -// called by drftf1 -STIN void dradfg(int ido,int ip,int l1,int idl1,float *cc,float *c1, - float *c2,float *ch,float *ch2,float *wa); -// called by drftf1 -STIN void drftf1(int n,float *c,float *ch,float *wa,int *ifac); -void __ogg_fdrfftf(int n,float *r,float *wsave,int *ifac); -STIN void dcsqf1(int n,float *x,float *w,float *xh,int *ifac); -void __ogg_fdcosqf(int n,float *x,float *wsave,int *ifac); -STIN void dradb2(int ido,int l1,float *cc,float *ch,float *wa1); -STIN void dradb3(int ido,int l1,float *cc,float *ch,float *wa1, - float *wa2); -STIN void dradb4(int ido,int l1,float *cc,float *ch,float *wa1, - float *wa2,float *wa3); -STIN void dradbg(int ido,int ip,int l1,int idl1,float *cc,float *c1, - float *c2,float *ch,float *ch2,float *wa); -STIN void drftb1(int n, float *c, float *ch, float *wa, int *ifac); -void __ogg_fdrfftb(int n, float *r, float *wsave, int *ifac); -STIN void dcsqb1(int n,float *x,float *w,float *xh,int *ifac); -void __ogg_fdcosqb(int n,float *x,float *wsave,int *ifac); - -FastFourierTransformer::FastFourierTransformer(QObject *parent) : - QObject(parent), - m_waveFloat(0), - m_workingArray(0), - m_ifac(0), - m_last_n(-1) -{ -} - -FastFourierTransformer::~FastFourierTransformer() -{ - if (m_waveFloat != 0) { - delete [] m_waveFloat; - } - if (m_workingArray != 0) { - delete [] m_workingArray; - } - if (m_ifac != 0) { - delete [] m_ifac; - } -} - -/** - * Prepares the arrays to be of length n. - */ -void FastFourierTransformer::reserve(int n) -{ - Q_ASSERT(n>0); - if (m_waveFloat != 0) { - delete [] m_waveFloat; - } - if (m_workingArray != 0) { - delete [] m_workingArray; - } - if (m_ifac != 0) { - delete [] m_ifac; - } - m_workingArray = new float[2*n+15]; - m_waveFloat = new float[n]; - m_ifac = new int[n]; - __ogg_fdrffti(n, m_workingArray, m_ifac); - m_last_n = n; -} - -/** - * Calculates the Fast Fourier Transformation (FFT). - */ -void FastFourierTransformer::calculateFFT(QList<qint16> wave) -{ - const int n = wave.size(); - if (m_last_n != n) { - reserve(n); - } - for (int i = 0; i < n; i++) { - m_waveFloat[i] = (float) wave.at(i); - } - - __ogg_fdrfftf(n, m_waveFloat, m_workingArray, m_ifac); - -} - -/** - * Returns the index which corresponds to the maximum density - * of the FFT. - */ -int FastFourierTransformer::getMaximumDensityIndex() -{ - const int halfN = m_last_n / 2; - float maxDensity = 0; - int maxDensityIndex = 0; - float densitySquared = 0.f; - for (int k = 1; k < halfN; k++) { - // Here, we calculate the frequency k/N. - // k=1, the wave oscillation time is N, and the frequency - // is 1/sample. - // k=2, the wave oscillation time is N/2, and the frequency - // is 2/sample. - // k=3, the wave oscillation time is N/3, and the frequency - // is 3/sample. - // Note, that the documentation is for Fortran, so indexes in the - // documentation does not match. - // The sine and cosine coefficients are obtained thus as follows: - const float cosCoefficient = qAbs(m_waveFloat[2*k-1]); - const float sinCoefficient = qAbs(m_waveFloat[2*k]); - - densitySquared = sinCoefficient*sinCoefficient + cosCoefficient*cosCoefficient; - if (densitySquared > maxDensity) { - maxDensity = densitySquared; - maxDensityIndex = k; - } - } - - if (m_cutOffForDensitySquared < maxDensity) { - return maxDensityIndex; - } - else { - return -1; - } -} - -/** - * Sets the cutoff density. - */ -void FastFourierTransformer::setCutOffForDensity(float cutoff) -{ - m_cutOffForDensitySquared = cutoff*cutoff; -} diff --git a/examples/mobile/guitartuner/src/fastfouriertransformer.h b/examples/mobile/guitartuner/src/fastfouriertransformer.h deleted file mode 100644 index 9d5a9c8f..00000000 --- a/examples/mobile/guitartuner/src/fastfouriertransformer.h +++ /dev/null @@ -1,68 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef FASTFOURIERTRANSFORM_H -#define FASTFOURIERTRANSFORM_H - -#include <QObject> -#include <QList> - -class FastFourierTransformer : public QObject -{ - Q_OBJECT - -public: - FastFourierTransformer(QObject *parent = 0); - ~FastFourierTransformer(); - void reserve(int n); - void calculateFFT(QList<qint16> wave); - int getMaximumDensityIndex(); - void setCutOffForDensity(float cutoff); - -private: - float *m_waveFloat; - float *m_workingArray; - int *m_ifac; - int m_last_n; - float m_cutOffForDensitySquared; -}; - -#endif // FASTFOURIERTRANSFORM_H diff --git a/examples/mobile/guitartuner/src/fftpack.c b/examples/mobile/guitartuner/src/fftpack.c deleted file mode 100644 index feff09a5..00000000 --- a/examples/mobile/guitartuner/src/fftpack.c +++ /dev/null @@ -1,1406 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -/******************************************************************** - - The routines in this file are from http://www.netlib.org/fftpack/. - According to the comments in the original file (which are provided below) - and according to the wikipedia article about the FFTPACK[1], - they are released as public domain. - - For information about the author of the original, Fortran routines, - and the author of the C translation these routines, - see the comments below. - - [1] http://en.wikipedia.org/wiki/FFTPACK, referenced 2010-12-21. - - ********************************************************************/ - -/******************************************************************** - - file: fft.c - function: Fast discrete Fourier and cosine transforms and inverses - author: Monty <xiphmont@mit.edu> - modifications by: Monty - last modification date: Jul 1 1996 - - ********************************************************************/ - -/* These Fourier routines were originally based on the Fourier - routines of the same names from the NETLIB bihar and fftpack - fortran libraries developed by Paul N. Swarztrauber at the National - Center for Atmospheric Research in Boulder, CO USA. They have been - reimplemented in C and optimized in a few ways for OggSquish. */ - -/* As the original fortran libraries are public domain, the C Fourier - routines in this file are hereby released to the public domain as - well. The C routines here produce output exactly equivalent to the - original fortran routines. Of particular interest are the facts - that (like the original fortran), these routines can work on - arbitrary length vectors that need not be powers of two in - length. */ - -#include <math.h> - -__STATIC void drfti1(int n, float *wa, int *ifac){ - static int ntryh[4] = { 4,2,3,5 }; - static float tpi = 6.28318530717958647692528676655900577; - float arg,argh,argld,fi; - int ntry=0,i,j=-1; - int k1, l1, l2, ib; - int ld, ii, ip, is, nq, nr; - int ido, ipm, nfm1; - int nl=n; - int nf=0; - - L101: - j++; - if (j < 4) - ntry=ntryh[j]; - else - ntry+=2; - - L104: - nq=nl/ntry; - nr=nl-ntry*nq; - if (nr!=0) goto L101; - - nf++; - ifac[nf+1]=ntry; - nl=nq; - if (ntry!=2) goto L107; - if (nf==1) goto L107; - - for (i=1;i<nf;i++){ - ib=nf-i+1; - ifac[ib+1]=ifac[ib]; - } - ifac[2] = 2; - - L107: - if (nl!=1) goto L104; - ifac[0]=n; - ifac[1]=nf; - argh=tpi/n; - is=0; - nfm1=nf-1; - l1=1; - - if (nfm1==0) return; - - for (k1=0;k1<nfm1;k1++){ - ip=ifac[k1+2]; - ld=0; - l2=l1*ip; - ido=n/l2; - ipm=ip-1; - - for (j=0;j<ipm;j++){ - ld+=l1; - i=is; - argld=(float)ld*argh; - fi=0.; - for (ii=2;ii<ido;ii+=2){ - fi+=1.; - arg=fi*argld; - wa[i++]=cos(arg); - wa[i++]=sin(arg); - } - is+=ido; - } - l1=l2; - } -} - -void __ogg_fdrffti(int n, float *wsave, int *ifac){ - - if (n == 1) return; - drfti1(n, wsave+n, ifac); -} - -void __ogg_fdcosqi(int n, float *wsave, int *ifac){ - static float pih = 1.57079632679489661923132169163975; - static int k; - static float fk, dt; - - dt=pih/n; - fk=0.; - for (k=0;k<n;k++){ - fk+=1.; - wsave[k] = cos(fk*dt); - } - - __ogg_fdrffti(n, wsave+n,ifac); -} - -STIN void dradf2(int ido,int l1,float *cc,float *ch,float *wa1){ - int i,k; - float ti2,tr2; - int t0,t1,t2,t3,t4,t5,t6; - - t1=0; - t0=(t2=l1*ido); - t3=ido<<1; - for (k=0;k<l1;k++){ - ch[t1<<1]=cc[t1]+cc[t2]; - ch[(t1<<1)+t3-1]=cc[t1]-cc[t2]; - t1+=ido; - t2+=ido; - } - - if (ido<2) return; - if (ido==2) goto L105; - - t1=0; - t2=t0; - for (k=0;k<l1;k++){ - t3=t2; - t4=(t1<<1)+(ido<<1); - t5=t1; - t6=t1+t1; - for (i=2;i<ido;i+=2){ - t3+=2; - t4-=2; - t5+=2; - t6+=2; - tr2=wa1[i-2]*cc[t3-1]+wa1[i-1]*cc[t3]; - ti2=wa1[i-2]*cc[t3]-wa1[i-1]*cc[t3-1]; - ch[t6]=cc[t5]+ti2; - ch[t4]=ti2-cc[t5]; - ch[t6-1]=cc[t5-1]+tr2; - ch[t4-1]=cc[t5-1]-tr2; - } - t1+=ido; - t2+=ido; - } - - if (ido%2==1) return; - - L105: - t3=(t2=(t1=ido)-1); - t2+=t0; - for (k=0;k<l1;k++){ - ch[t1]=-cc[t2]; - ch[t1-1]=cc[t3]; - t1+=ido<<1; - t2+=ido; - t3+=ido; - } -} - -STIN void dradf4(int ido,int l1,float *cc,float *ch,float *wa1, - float *wa2,float *wa3){ - static float hsqt2 = .70710678118654752440084436210485; - int i,k,t0,t1,t2,t3,t4,t5,t6; - float ci2,ci3,ci4,cr2,cr3,cr4,ti1,ti2,ti3,ti4,tr1,tr2,tr3,tr4; - t0=l1*ido; - - t1=t0; - t4=t1<<1; - t2=t1+(t1<<1); - t3=0; - - for (k=0;k<l1;k++){ - tr1=cc[t1]+cc[t2]; - tr2=cc[t3]+cc[t4]; - ch[t5=t3<<2]=tr1+tr2; - ch[(ido<<2)+t5-1]=tr2-tr1; - ch[(t5+=(ido<<1))-1]=cc[t3]-cc[t4]; - ch[t5]=cc[t2]-cc[t1]; - - t1+=ido; - t2+=ido; - t3+=ido; - t4+=ido; - } - - if (ido<2) return; - if (ido==2) goto L105; - - t1=0; - for (k=0;k<l1;k++){ - t2=t1; - t4=t1<<2; - t5=(t6=ido<<1)+t4; - for (i=2;i<ido;i+=2){ - t3=(t2+=2); - t4+=2; - t5-=2; - - t3+=t0; - cr2=wa1[i-2]*cc[t3-1]+wa1[i-1]*cc[t3]; - ci2=wa1[i-2]*cc[t3]-wa1[i-1]*cc[t3-1]; - t3+=t0; - cr3=wa2[i-2]*cc[t3-1]+wa2[i-1]*cc[t3]; - ci3=wa2[i-2]*cc[t3]-wa2[i-1]*cc[t3-1]; - t3+=t0; - cr4=wa3[i-2]*cc[t3-1]+wa3[i-1]*cc[t3]; - ci4=wa3[i-2]*cc[t3]-wa3[i-1]*cc[t3-1]; - - tr1=cr2+cr4; - tr4=cr4-cr2; - ti1=ci2+ci4; - ti4=ci2-ci4; - ti2=cc[t2]+ci3; - ti3=cc[t2]-ci3; - tr2=cc[t2-1]+cr3; - tr3=cc[t2-1]-cr3; - - - ch[t4-1]=tr1+tr2; - ch[t4]=ti1+ti2; - - ch[t5-1]=tr3-ti4; - ch[t5]=tr4-ti3; - - ch[t4+t6-1]=ti4+tr3; - ch[t4+t6]=tr4+ti3; - - ch[t5+t6-1]=tr2-tr1; - ch[t5+t6]=ti1-ti2; - } - t1+=ido; - } - if (ido%2==1) return; - - L105: - - t2=(t1=t0+ido-1)+(t0<<1); - t3=ido<<2; - t4=ido; - t5=ido<<1; - t6=ido; - - for (k=0;k<l1;k++){ - ti1=-hsqt2*(cc[t1]+cc[t2]); - tr1=hsqt2*(cc[t1]-cc[t2]); - ch[t4-1]=tr1+cc[t6-1]; - ch[t4+t5-1]=cc[t6-1]-tr1; - ch[t4]=ti1-cc[t1+t0]; - ch[t4+t5]=ti1+cc[t1+t0]; - t1+=ido; - t2+=ido; - t4+=t3; - t6+=ido; - } -} - -STIN void dradfg(int ido,int ip,int l1,int idl1,float *cc,float *c1, - float *c2,float *ch,float *ch2,float *wa){ - - static float tpi=6.28318530717958647692528676655900577; - int idij,ipph,i,j,k,l,ic,ik,is; - int t0,t1,t2,t3,t4,t5,t6,t7,t8,t9,t10; - float dc2,ai1,ai2,ar1,ar2,ds2; - int nbd; - float dcp,arg,dsp,ar1h,ar2h; - int idp2,ipp2; - - arg=tpi/(float)ip; - dcp=cos(arg); - dsp=sin(arg); - ipph=(ip+1)>>1; - ipp2=ip; - idp2=ido; - nbd=(ido-1)>>1; - t0=l1*ido; - t10=ip*ido; - - if (ido==1) goto L119; - for (ik=0;ik<idl1;ik++)ch2[ik]=c2[ik]; - - t1=0; - for (j=1;j<ip;j++){ - t1+=t0; - t2=t1; - for (k=0;k<l1;k++){ - ch[t2]=c1[t2]; - t2+=ido; - } - } - - is=-ido; - t1=0; - if (nbd>l1){ - for (j=1;j<ip;j++){ - t1+=t0; - is+=ido; - t2= -ido+t1; - for (k=0;k<l1;k++){ - idij=is-1; - t2+=ido; - t3=t2; - for (i=2;i<ido;i+=2){ - idij+=2; - t3+=2; - ch[t3-1]=wa[idij-1]*c1[t3-1]+wa[idij]*c1[t3]; - ch[t3]=wa[idij-1]*c1[t3]-wa[idij]*c1[t3-1]; - } - } - } - }else{ - - for (j=1;j<ip;j++){ - is+=ido; - idij=is-1; - t1+=t0; - t2=t1; - for (i=2;i<ido;i+=2){ - idij+=2; - t2+=2; - t3=t2; - for (k=0;k<l1;k++){ - ch[t3-1]=wa[idij-1]*c1[t3-1]+wa[idij]*c1[t3]; - ch[t3]=wa[idij-1]*c1[t3]-wa[idij]*c1[t3-1]; - t3+=ido; - } - } - } - } - - t1=0; - t2=ipp2*t0; - if (nbd<l1){ - for (j=1;j<ipph;j++){ - t1+=t0; - t2-=t0; - t3=t1; - t4=t2; - for (i=2;i<ido;i+=2){ - t3+=2; - t4+=2; - t5=t3-ido; - t6=t4-ido; - for (k=0;k<l1;k++){ - t5+=ido; - t6+=ido; - c1[t5-1]=ch[t5-1]+ch[t6-1]; - c1[t6-1]=ch[t5]-ch[t6]; - c1[t5]=ch[t5]+ch[t6]; - c1[t6]=ch[t6-1]-ch[t5-1]; - } - } - } - }else{ - for (j=1;j<ipph;j++){ - t1+=t0; - t2-=t0; - t3=t1; - t4=t2; - for (k=0;k<l1;k++){ - t5=t3; - t6=t4; - for (i=2;i<ido;i+=2){ - t5+=2; - t6+=2; - c1[t5-1]=ch[t5-1]+ch[t6-1]; - c1[t6-1]=ch[t5]-ch[t6]; - c1[t5]=ch[t5]+ch[t6]; - c1[t6]=ch[t6-1]-ch[t5-1]; - } - t3+=ido; - t4+=ido; - } - } - } - -L119: - for (ik=0;ik<idl1;ik++)c2[ik]=ch2[ik]; - - t1=0; - t2=ipp2*idl1; - for (j=1;j<ipph;j++){ - t1+=t0; - t2-=t0; - t3=t1-ido; - t4=t2-ido; - for (k=0;k<l1;k++){ - t3+=ido; - t4+=ido; - c1[t3]=ch[t3]+ch[t4]; - c1[t4]=ch[t4]-ch[t3]; - } - } - - ar1=1.; - ai1=0.; - t1=0; - t2=ipp2*idl1; - t3=(ip-1)*idl1; - for (l=1;l<ipph;l++){ - t1+=idl1; - t2-=idl1; - ar1h=dcp*ar1-dsp*ai1; - ai1=dcp*ai1+dsp*ar1; - ar1=ar1h; - t4=t1; - t5=t2; - t6=t3; - t7=idl1; - - for (ik=0;ik<idl1;ik++){ - ch2[t4++]=c2[ik]+ar1*c2[t7++]; - ch2[t5++]=ai1*c2[t6++]; - } - - dc2=ar1; - ds2=ai1; - ar2=ar1; - ai2=ai1; - - t4=idl1; - t5=(ipp2-1)*idl1; - for (j=2;j<ipph;j++){ - t4+=idl1; - t5-=idl1; - - ar2h=dc2*ar2-ds2*ai2; - ai2=dc2*ai2+ds2*ar2; - ar2=ar2h; - - t6=t1; - t7=t2; - t8=t4; - t9=t5; - for (ik=0;ik<idl1;ik++){ - ch2[t6++]+=ar2*c2[t8++]; - ch2[t7++]+=ai2*c2[t9++]; - } - } - } - - t1=0; - for (j=1;j<ipph;j++){ - t1+=idl1; - t2=t1; - for (ik=0;ik<idl1;ik++)ch2[ik]+=c2[t2++]; - } - - if (ido<l1) goto L132; - - t1=0; - t2=0; - for (k=0;k<l1;k++){ - t3=t1; - t4=t2; - for (i=0;i<ido;i++)cc[t4++]=ch[t3++]; - t1+=ido; - t2+=t10; - } - - goto L135; - - L132: - for (i=0;i<ido;i++){ - t1=i; - t2=i; - for (k=0;k<l1;k++){ - cc[t2]=ch[t1]; - t1+=ido; - t2+=t10; - } - } - - L135: - t1=0; - t2=ido<<1; - t3=0; - t4=ipp2*t0; - for (j=1;j<ipph;j++){ - - t1+=t2; - t3+=t0; - t4-=t0; - - t5=t1; - t6=t3; - t7=t4; - - for (k=0;k<l1;k++){ - cc[t5-1]=ch[t6]; - cc[t5]=ch[t7]; - t5+=t10; - t6+=ido; - t7+=ido; - } - } - - if (ido==1) return; - if (nbd<l1) goto L141; - - t1=-ido; - t3=0; - t4=0; - t5=ipp2*t0; - for (j=1;j<ipph;j++){ - t1+=t2; - t3+=t2; - t4+=t0; - t5-=t0; - t6=t1; - t7=t3; - t8=t4; - t9=t5; - for (k=0;k<l1;k++){ - for (i=2;i<ido;i+=2){ - ic=idp2-i; - cc[i+t7-1]=ch[i+t8-1]+ch[i+t9-1]; - cc[ic+t6-1]=ch[i+t8-1]-ch[i+t9-1]; - cc[i+t7]=ch[i+t8]+ch[i+t9]; - cc[ic+t6]=ch[i+t9]-ch[i+t8]; - } - t6+=t10; - t7+=t10; - t8+=ido; - t9+=ido; - } - } - return; - - L141: - - t1=-ido; - t3=0; - t4=0; - t5=ipp2*t0; - for (j=1;j<ipph;j++){ - t1+=t2; - t3+=t2; - t4+=t0; - t5-=t0; - for (i=2;i<ido;i+=2){ - t6=idp2+t1-i; - t7=i+t3; - t8=i+t4; - t9=i+t5; - for (k=0;k<l1;k++){ - cc[t7-1]=ch[t8-1]+ch[t9-1]; - cc[t6-1]=ch[t8-1]-ch[t9-1]; - cc[t7]=ch[t8]+ch[t9]; - cc[t6]=ch[t9]-ch[t8]; - t6+=t10; - t7+=t10; - t8+=ido; - t9+=ido; - } - } - } -} - -STIN void drftf1(int n,float *c,float *ch,float *wa,int *ifac){ - int i,k1,l1,l2; - int na,kh,nf; - int ip,iw,ido,idl1,ix2,ix3; - - nf=ifac[1]; - na=1; - l2=n; - iw=n; - - for (k1=0;k1<nf;k1++){ - kh=nf-k1; - ip=ifac[kh+1]; - l1=l2/ip; - ido=n/l2; - idl1=ido*l1; - iw-=(ip-1)*ido; - na=1-na; - - if (ip!=4) goto L102; - - ix2=iw+ido; - ix3=ix2+ido; - if (na!=0) - dradf4(ido,l1,ch,c,wa+iw-1,wa+ix2-1,wa+ix3-1); - else - dradf4(ido,l1,c,ch,wa+iw-1,wa+ix2-1,wa+ix3-1); - goto L110; - - L102: - if (ip!=2) goto L104; - if (na!=0) goto L103; - - dradf2(ido,l1,c,ch,wa+iw-1); - goto L110; - - L103: - dradf2(ido,l1,ch,c,wa+iw-1); - goto L110; - - L104: - if (ido==1)na=1-na; - if (na!=0) goto L109; - - dradfg(ido,ip,l1,idl1,c,c,c,ch,ch,wa+iw-1); - na=1; - goto L110; - - L109: - dradfg(ido,ip,l1,idl1,ch,ch,ch,c,c,wa+iw-1); - na=0; - - L110: - l2=l1; - } - - if (na==1) return; - - for (i=0;i<n;i++)c[i]=ch[i]; -} - -void __ogg_fdrfftf(int n,float *r,float *wsave,int *ifac){ - if (n==1) return; - drftf1(n,r,wsave,wsave+n,ifac); -} - -STIN void dcsqf1(int n,float *x,float *w,float *xh,int *ifac){ - int modn,i,k,kc; - int np2,ns2; - float xim1; - - ns2=(n+1)>>1; - np2=n; - - kc=np2; - for (k=1;k<ns2;k++){ - kc--; - xh[k]=x[k]+x[kc]; - xh[kc]=x[k]-x[kc]; - } - - modn=n%2; - if (modn==0)xh[ns2]=x[ns2]+x[ns2]; - - for (k=1;k<ns2;k++){ - kc=np2-k; - x[k]=w[k-1]*xh[kc]+w[kc-1]*xh[k]; - x[kc]=w[k-1]*xh[k]-w[kc-1]*xh[kc]; - } - - if (modn==0)x[ns2]=w[ns2-1]*xh[ns2]; - - __ogg_fdrfftf(n,x,xh,ifac); - - for (i=2;i<n;i+=2){ - xim1=x[i-1]-x[i]; - x[i]=x[i-1]+x[i]; - x[i-1]=xim1; - } -} - -void __ogg_fdcosqf(int n,float *x,float *wsave,int *ifac){ - static float sqrt2=1.4142135623730950488016887242097; - float tsqx; - - switch (n){ - case 0:case 1: - return; - case 2: - tsqx=sqrt2*x[1]; - x[1]=x[0]-tsqx; - x[0]+=tsqx; - return; - default: - dcsqf1(n,x,wsave,wsave+n,ifac); - return; - } -} - -STIN void dradb2(int ido,int l1,float *cc,float *ch,float *wa1){ - int i,k,t0,t1,t2,t3,t4,t5,t6; - float ti2,tr2; - - t0=l1*ido; - - t1=0; - t2=0; - t3=(ido<<1)-1; - for (k=0;k<l1;k++){ - ch[t1]=cc[t2]+cc[t3+t2]; - ch[t1+t0]=cc[t2]-cc[t3+t2]; - t2=(t1+=ido)<<1; - } - - if (ido<2) return; - if (ido==2) goto L105; - - t1=0; - t2=0; - for (k=0;k<l1;k++){ - t3=t1; - t5=(t4=t2)+(ido<<1); - t6=t0+t1; - for (i=2;i<ido;i+=2){ - t3+=2; - t4+=2; - t5-=2; - t6+=2; - ch[t3-1]=cc[t4-1]+cc[t5-1]; - tr2=cc[t4-1]-cc[t5-1]; - ch[t3]=cc[t4]-cc[t5]; - ti2=cc[t4]+cc[t5]; - ch[t6-1]=wa1[i-2]*tr2-wa1[i-1]*ti2; - ch[t6]=wa1[i-2]*ti2+wa1[i-1]*tr2; - } - t2=(t1+=ido)<<1; - } - - if (ido%2==1) return; - -L105: - t1=ido-1; - t2=ido-1; - for (k=0;k<l1;k++){ - ch[t1]=cc[t2]+cc[t2]; - ch[t1+t0]=-(cc[t2+1]+cc[t2+1]); - t1+=ido; - t2+=ido<<1; - } -} - -STIN void dradb3(int ido,int l1,float *cc,float *ch,float *wa1, - float *wa2){ - static float taur = -.5; - static float taui = .86602540378443864676372317075293618; - int i,k,t0,t1,t2,t3,t4,t5,t6,t7,t8,t9,t10; - float ci2,ci3,di2,di3,cr2,cr3,dr2,dr3,ti2,tr2; - t0=l1*ido; - - t1=0; - t2=t0<<1; - t3=ido<<1; - t4=ido+(ido<<1); - t5=0; - for (k=0;k<l1;k++){ - tr2=cc[t3-1]+cc[t3-1]; - cr2=cc[t5]+(taur*tr2); - ch[t1]=cc[t5]+tr2; - ci3=taui*(cc[t3]+cc[t3]); - ch[t1+t0]=cr2-ci3; - ch[t1+t2]=cr2+ci3; - t1+=ido; - t3+=t4; - t5+=t4; - } - - if (ido==1) return; - - t1=0; - t3=ido<<1; - for (k=0;k<l1;k++){ - t7=t1+(t1<<1); - t6=(t5=t7+t3); - t8=t1; - t10=(t9=t1+t0)+t0; - - for (i=2;i<ido;i+=2){ - t5+=2; - t6-=2; - t7+=2; - t8+=2; - t9+=2; - t10+=2; - tr2=cc[t5-1]+cc[t6-1]; - cr2=cc[t7-1]+(taur*tr2); - ch[t8-1]=cc[t7-1]+tr2; - ti2=cc[t5]-cc[t6]; - ci2=cc[t7]+(taur*ti2); - ch[t8]=cc[t7]+ti2; - cr3=taui*(cc[t5-1]-cc[t6-1]); - ci3=taui*(cc[t5]+cc[t6]); - dr2=cr2-ci3; - dr3=cr2+ci3; - di2=ci2+cr3; - di3=ci2-cr3; - ch[t9-1]=wa1[i-2]*dr2-wa1[i-1]*di2; - ch[t9]=wa1[i-2]*di2+wa1[i-1]*dr2; - ch[t10-1]=wa2[i-2]*dr3-wa2[i-1]*di3; - ch[t10]=wa2[i-2]*di3+wa2[i-1]*dr3; - } - t1+=ido; - } -} - -STIN void dradb4(int ido,int l1,float *cc,float *ch,float *wa1, - float *wa2,float *wa3){ - static float sqrt2=1.4142135623730950488016887242097; - int i,k,t0,t1,t2,t3,t4,t5,t6,t7,t8; - float ci2,ci3,ci4,cr2,cr3,cr4,ti1,ti2,ti3,ti4,tr1,tr2,tr3,tr4; - t0=l1*ido; - - t1=0; - t2=ido<<2; - t3=0; - t6=ido<<1; - for (k=0;k<l1;k++){ - t4=t3+t6; - t5=t1; - tr3=cc[t4-1]+cc[t4-1]; - tr4=cc[t4]+cc[t4]; - tr1=cc[t3]-cc[(t4+=t6)-1]; - tr2=cc[t3]+cc[t4-1]; - ch[t5]=tr2+tr3; - ch[t5+=t0]=tr1-tr4; - ch[t5+=t0]=tr2-tr3; - ch[t5+=t0]=tr1+tr4; - t1+=ido; - t3+=t2; - } - - if (ido<2) return; - if (ido==2) goto L105; - - t1=0; - for (k=0;k<l1;k++){ - t5=(t4=(t3=(t2=t1<<2)+t6))+t6; - t7=t1; - for (i=2;i<ido;i+=2){ - t2+=2; - t3+=2; - t4-=2; - t5-=2; - t7+=2; - ti1=cc[t2]+cc[t5]; - ti2=cc[t2]-cc[t5]; - ti3=cc[t3]-cc[t4]; - tr4=cc[t3]+cc[t4]; - tr1=cc[t2-1]-cc[t5-1]; - tr2=cc[t2-1]+cc[t5-1]; - ti4=cc[t3-1]-cc[t4-1]; - tr3=cc[t3-1]+cc[t4-1]; - ch[t7-1]=tr2+tr3; - cr3=tr2-tr3; - ch[t7]=ti2+ti3; - ci3=ti2-ti3; - cr2=tr1-tr4; - cr4=tr1+tr4; - ci2=ti1+ti4; - ci4=ti1-ti4; - - ch[(t8=t7+t0)-1]=wa1[i-2]*cr2-wa1[i-1]*ci2; - ch[t8]=wa1[i-2]*ci2+wa1[i-1]*cr2; - ch[(t8+=t0)-1]=wa2[i-2]*cr3-wa2[i-1]*ci3; - ch[t8]=wa2[i-2]*ci3+wa2[i-1]*cr3; - ch[(t8+=t0)-1]=wa3[i-2]*cr4-wa3[i-1]*ci4; - ch[t8]=wa3[i-2]*ci4+wa3[i-1]*cr4; - } - t1+=ido; - } - - if (ido%2 == 1) return; - - L105: - - t1=ido; - t2=ido<<2; - t3=ido-1; - t4=ido+(ido<<1); - for (k=0;k<l1;k++){ - t5=t3; - ti1=cc[t1]+cc[t4]; - ti2=cc[t4]-cc[t1]; - tr1=cc[t1-1]-cc[t4-1]; - tr2=cc[t1-1]+cc[t4-1]; - ch[t5]=tr2+tr2; - ch[t5+=t0]=sqrt2*(tr1-ti1); - ch[t5+=t0]=ti2+ti2; - ch[t5+=t0]=-sqrt2*(tr1+ti1); - - t3+=ido; - t1+=t2; - t4+=t2; - } -} - -STIN void dradbg(int ido,int ip,int l1,int idl1,float *cc,float *c1, - float *c2,float *ch,float *ch2,float *wa){ - static float tpi=6.28318530717958647692528676655900577; - int idij,ipph,i,j,k,l,ik,is,t0,t1,t2,t3,t4,t5,t6,t7,t8,t9,t10, - t11,t12; - float dc2,ai1,ai2,ar1,ar2,ds2; - int nbd; - float dcp,arg,dsp,ar1h,ar2h; - int ipp2; - - t10=ip*ido; - t0=l1*ido; - arg=tpi/(float)ip; - dcp=cos(arg); - dsp=sin(arg); - nbd=(ido-1)>>1; - ipp2=ip; - ipph=(ip+1)>>1; - if (ido<l1) goto L103; - - t1=0; - t2=0; - for (k=0;k<l1;k++){ - t3=t1; - t4=t2; - for (i=0;i<ido;i++){ - ch[t3]=cc[t4]; - t3++; - t4++; - } - t1+=ido; - t2+=t10; - } - goto L106; - - L103: - t1=0; - for (i=0;i<ido;i++){ - t2=t1; - t3=t1; - for (k=0;k<l1;k++){ - ch[t2]=cc[t3]; - t2+=ido; - t3+=t10; - } - t1++; - } - - L106: - t1=0; - t2=ipp2*t0; - t7=(t5=ido<<1); - for (j=1;j<ipph;j++){ - t1+=t0; - t2-=t0; - t3=t1; - t4=t2; - t6=t5; - for (k=0;k<l1;k++){ - ch[t3]=cc[t6-1]+cc[t6-1]; - ch[t4]=cc[t6]+cc[t6]; - t3+=ido; - t4+=ido; - t6+=t10; - } - t5+=t7; - } - - if (ido == 1) goto L116; - if (nbd<l1) goto L112; - - t1=0; - t2=ipp2*t0; - t7=0; - for (j=1;j<ipph;j++){ - t1+=t0; - t2-=t0; - t3=t1; - t4=t2; - - t7+=(ido<<1); - t8=t7; - for (k=0;k<l1;k++){ - t5=t3; - t6=t4; - t9=t8; - t11=t8; - for (i=2;i<ido;i+=2){ - t5+=2; - t6+=2; - t9+=2; - t11-=2; - ch[t5-1]=cc[t9-1]+cc[t11-1]; - ch[t6-1]=cc[t9-1]-cc[t11-1]; - ch[t5]=cc[t9]-cc[t11]; - ch[t6]=cc[t9]+cc[t11]; - } - t3+=ido; - t4+=ido; - t8+=t10; - } - } - goto L116; - - L112: - t1=0; - t2=ipp2*t0; - t7=0; - for (j=1;j<ipph;j++){ - t1+=t0; - t2-=t0; - t3=t1; - t4=t2; - t7+=(ido<<1); - t8=t7; - t9=t7; - for (i=2;i<ido;i+=2){ - t3+=2; - t4+=2; - t8+=2; - t9-=2; - t5=t3; - t6=t4; - t11=t8; - t12=t9; - for (k=0;k<l1;k++){ - ch[t5-1]=cc[t11-1]+cc[t12-1]; - ch[t6-1]=cc[t11-1]-cc[t12-1]; - ch[t5]=cc[t11]-cc[t12]; - ch[t6]=cc[t11]+cc[t12]; - t5+=ido; - t6+=ido; - t11+=t10; - t12+=t10; - } - } - } - -L116: - ar1=1.; - ai1=0.; - t1=0; - t9=(t2=ipp2*idl1); - t3=(ip-1)*idl1; - for (l=1;l<ipph;l++){ - t1+=idl1; - t2-=idl1; - - ar1h=dcp*ar1-dsp*ai1; - ai1=dcp*ai1+dsp*ar1; - ar1=ar1h; - t4=t1; - t5=t2; - t6=0; - t7=idl1; - t8=t3; - for (ik=0;ik<idl1;ik++){ - c2[t4++]=ch2[t6++]+ar1*ch2[t7++]; - c2[t5++]=ai1*ch2[t8++]; - } - dc2=ar1; - ds2=ai1; - ar2=ar1; - ai2=ai1; - - t6=idl1; - t7=t9-idl1; - for (j=2;j<ipph;j++){ - t6+=idl1; - t7-=idl1; - ar2h=dc2*ar2-ds2*ai2; - ai2=dc2*ai2+ds2*ar2; - ar2=ar2h; - t4=t1; - t5=t2; - t11=t6; - t12=t7; - for (ik=0;ik<idl1;ik++){ - c2[t4++]+=ar2*ch2[t11++]; - c2[t5++]+=ai2*ch2[t12++]; - } - } - } - - t1=0; - for (j=1;j<ipph;j++){ - t1+=idl1; - t2=t1; - for (ik=0;ik<idl1;ik++)ch2[ik]+=ch2[t2++]; - } - - t1=0; - t2=ipp2*t0; - for (j=1;j<ipph;j++){ - t1+=t0; - t2-=t0; - t3=t1; - t4=t2; - for (k=0;k<l1;k++){ - ch[t3]=c1[t3]-c1[t4]; - ch[t4]=c1[t3]+c1[t4]; - t3+=ido; - t4+=ido; - } - } - - if (ido==1) goto L132; - if (nbd<l1) goto L128; - - t1=0; - t2=ipp2*t0; - for (j=1;j<ipph;j++){ - t1+=t0; - t2-=t0; - t3=t1; - t4=t2; - for (k=0;k<l1;k++){ - t5=t3; - t6=t4; - for (i=2;i<ido;i+=2){ - t5+=2; - t6+=2; - ch[t5-1]=c1[t5-1]-c1[t6]; - ch[t6-1]=c1[t5-1]+c1[t6]; - ch[t5]=c1[t5]+c1[t6-1]; - ch[t6]=c1[t5]-c1[t6-1]; - } - t3+=ido; - t4+=ido; - } - } - goto L132; - - L128: - t1=0; - t2=ipp2*t0; - for (j=1;j<ipph;j++){ - t1+=t0; - t2-=t0; - t3=t1; - t4=t2; - for (i=2;i<ido;i+=2){ - t3+=2; - t4+=2; - t5=t3; - t6=t4; - for (k=0;k<l1;k++){ - ch[t5-1]=c1[t5-1]-c1[t6]; - ch[t6-1]=c1[t5-1]+c1[t6]; - ch[t5]=c1[t5]+c1[t6-1]; - ch[t6]=c1[t5]-c1[t6-1]; - t5+=ido; - t6+=ido; - } - } - } - -L132: - if (ido==1) return; - - for (ik=0;ik<idl1;ik++)c2[ik]=ch2[ik]; - - t1=0; - for (j=1;j<ip;j++){ - t2=(t1+=t0); - for (k=0;k<l1;k++){ - c1[t2]=ch[t2]; - t2+=ido; - } - } - - if (nbd>l1) goto L139; - - is= -ido-1; - t1=0; - for (j=1;j<ip;j++){ - is+=ido; - t1+=t0; - idij=is; - t2=t1; - for (i=2;i<ido;i+=2){ - t2+=2; - idij+=2; - t3=t2; - for (k=0;k<l1;k++){ - c1[t3-1]=wa[idij-1]*ch[t3-1]-wa[idij]*ch[t3]; - c1[t3]=wa[idij-1]*ch[t3]+wa[idij]*ch[t3-1]; - t3+=ido; - } - } - } - return; - - L139: - is= -ido-1; - t1=0; - for (j=1;j<ip;j++){ - is+=ido; - t1+=t0; - t2=t1; - for (k=0;k<l1;k++){ - idij=is; - t3=t2; - for (i=2;i<ido;i+=2){ - idij+=2; - t3+=2; - c1[t3-1]=wa[idij-1]*ch[t3-1]-wa[idij]*ch[t3]; - c1[t3]=wa[idij-1]*ch[t3]+wa[idij]*ch[t3-1]; - } - t2+=ido; - } - } -} - -STIN void drftb1(int n, float *c, float *ch, float *wa, int *ifac){ - int i,k1,l1,l2; - int na; - int nf,ip,iw,ix2,ix3,ido,idl1; - - nf=ifac[1]; - na=0; - l1=1; - iw=1; - - for (k1=0;k1<nf;k1++){ - ip=ifac[k1 + 2]; - l2=ip*l1; - ido=n/l2; - idl1=ido*l1; - if (ip!=4) goto L103; - ix2=iw+ido; - ix3=ix2+ido; - - if (na!=0) - dradb4(ido,l1,ch,c,wa+iw-1,wa+ix2-1,wa+ix3-1); - else - dradb4(ido,l1,c,ch,wa+iw-1,wa+ix2-1,wa+ix3-1); - na=1-na; - goto L115; - - L103: - if (ip!=2) goto L106; - - if (na!=0) - dradb2(ido,l1,ch,c,wa+iw-1); - else - dradb2(ido,l1,c,ch,wa+iw-1); - na=1-na; - goto L115; - - L106: - if (ip!=3) goto L109; - - ix2=iw+ido; - if (na!=0) - dradb3(ido,l1,ch,c,wa+iw-1,wa+ix2-1); - else - dradb3(ido,l1,c,ch,wa+iw-1,wa+ix2-1); - na=1-na; - goto L115; - - L109: -/* The radix five case can be translated later..... */ -/* if (ip!=5) goto L112; - - ix2=iw+ido; - ix3=ix2+ido; - ix4=ix3+ido; - if (na!=0) - dradb5(ido,l1,ch,c,wa+iw-1,wa+ix2-1,wa+ix3-1,wa+ix4-1); - else - dradb5(ido,l1,c,ch,wa+iw-1,wa+ix2-1,wa+ix3-1,wa+ix4-1); - na=1-na; - goto L115; - - L112:*/ - if (na!=0) - dradbg(ido,ip,l1,idl1,ch,ch,ch,c,c,wa+iw-1); - else - dradbg(ido,ip,l1,idl1,c,c,c,ch,ch,wa+iw-1); - if (ido==1)na=1-na; - - L115: - l1=l2; - iw+=(ip-1)*ido; - } - - if (na==0) return; - - for (i=0;i<n;i++)c[i]=ch[i]; -} - -void __ogg_fdrfftb(int n, float *r, float *wsave, int *ifac){ - if (n == 1) return; - drftb1(n, r, wsave, wsave+n, ifac); -} - -STIN void dcsqb1(int n,float *x,float *w,float *xh,int *ifac){ - int modn,i,k,kc; - int np2,ns2; - float xim1; - - ns2=(n+1)>>1; - np2=n; - - for (i=2;i<n;i+=2){ - xim1=x[i-1]+x[i]; - x[i]-=x[i-1]; - x[i-1]=xim1; - } - - x[0]+=x[0]; - modn=n%2; - if (modn==0)x[n-1]+=x[n-1]; - - __ogg_fdrfftb(n,x,xh,ifac); - - kc=np2; - for (k=1;k<ns2;k++){ - kc--; - xh[k]=w[k-1]*x[kc]+w[kc-1]*x[k]; - xh[kc]=w[k-1]*x[k]-w[kc-1]*x[kc]; - } - - if (modn==0)x[ns2]=w[ns2-1]*(x[ns2]+x[ns2]); - - kc=np2; - for (k=1;k<ns2;k++){ - kc--; - x[k]=xh[k]+xh[kc]; - x[kc]=xh[k]-xh[kc]; - } - x[0]+=x[0]; -} - -void __ogg_fdcosqb(int n,float *x,float *wsave,int *ifac){ - static float tsqrt2 = 2.8284271247461900976033774484194; - float x1; - - if (n<2){ - x[0]*=4; - return; - } - if (n==2){ - x1=(x[0]+x[1])*4; - x[1]=tsqrt2*(x[0]-x[1]); - x[0]=x1; - return; - } - - dcsqb1(n,x,wsave,wsave+n,ifac); -} - - - diff --git a/examples/mobile/guitartuner/src/guitartuner.cpp b/examples/mobile/guitartuner/src/guitartuner.cpp deleted file mode 100644 index 95e7ee9b..00000000 --- a/examples/mobile/guitartuner/src/guitartuner.cpp +++ /dev/null @@ -1,326 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "guitartuner.h" - -#ifdef Q_OS_SYMBIAN -#include <SoundDevice.h> -#endif // Q_OS_SYMBIAN - -#if defined(Q_OS_SYMBIAN) && defined(ORIENTATIONLOCK) -#include <eikenv.h> -#include <eikappui.h> -#include <aknenv.h> -#include <aknappui.h> -#endif // Q_OS_SYMBIAN && ORIENTATIONLOCK - -GuitarTuner::GuitarTuner(QWidget *parent) : - QMainWindow(parent) -{ - - // Set up the QML. - m_guitarTunerUI = new QDeclarativeView(QUrl("qrc:/src/application.qml"), this); - setCentralWidget(m_guitarTunerUI); - m_guitarTunerUI->setResizeMode(QDeclarativeView::SizeRootObjectToView); - qmlObject = m_guitarTunerUI->rootObject(); - - // Init audio output and input. - initAudioOutput(); - initAudioInput(); - - // Connect the quit signal of m_guitarTunerUI - // into the close slot of this. - connect(m_guitarTunerUI->engine(), SIGNAL(quit()), SLOT(close())); - - // Connect the signals from qmlObject into proper slots - // of this and m_voicegenerator. - connect(qmlObject, SIGNAL(muteStateChanged(bool)), - SLOT(muteStateChanged(bool))); - connect(qmlObject, SIGNAL(volumeChanged(qreal)), - m_voicegenerator, SLOT(setAmplitude(qreal))); - connect(qmlObject, SIGNAL(volumeChanged(qreal)), - SLOT(setMaxVolumeLevel(qreal))); - - // Connect the modeChanged signal from qmlObject - // into modeChanged slot of this class. - connect(qmlObject, SIGNAL(modeChanged(bool)), - SLOT(modeChanged(bool))); - - // Connect the microphoneSensitivityChanged signal from - // m_guitarTunerUI into setCutOffPercentage slot of m_analyzer class. - connect(qmlObject, SIGNAL(microphoneSensitivityChanged(qreal)), - m_analyzer, SLOT(setCutOffPercentage(qreal))); - - // Connect the signals from m_analyzer into slots of qmlObject. - connect(m_analyzer, SIGNAL(lowVoice()), - qmlObject, SLOT(lowVoice())); - connect(m_analyzer, SIGNAL(correctFrequency()), - qmlObject, SLOT(correctFrequencyObtained())); - connect(m_analyzer, SIGNAL(voiceDifference(QVariant)), - qmlObject, SLOT(voiceDifferenceChanged(QVariant))); - - // Initialise the MaximumVoiceDifference - // value of qmlObject with the value obtained from m_analyzer. - qmlObject->setProperty("maxVoiceDifference", - m_analyzer->getMaximumVoiceDifference()); - - // Connect the targetFrequencyChanged signal of qmlObject - // into targetFrequencyChanged slot of this class. - connect(qmlObject, SIGNAL(targetFrequencyChanged(qreal)), - SLOT(targetFrequencyChanged(qreal))); - - // Start voice output or input by using the modeChanged function, - // depending of the current mode. - modeChanged(qmlObject->property("isInput").toBool()); - -} - -/** - * Inits audio output. - */ -void GuitarTuner::initAudioOutput() -{ - // Set up the output format. - m_format_output.setFrequency(DataFrequencyHzOutput); - m_format_output.setCodec("audio/pcm"); - m_format_output.setSampleSize(16); - m_format_output.setChannels(1); - m_format_output.setByteOrder(QAudioFormat::LittleEndian); - m_format_output.setSampleType(QAudioFormat::SignedInt); - - // Obtain a default output device, and if the format is not - // supported, find the nearest format available. - QAudioDeviceInfo outputDeviceInfo( - QAudioDeviceInfo::defaultOutputDevice()); - if (!outputDeviceInfo.isFormatSupported(m_format_output)) { - m_format_output = outputDeviceInfo.nearestFormat(m_format_output); - } - - // Create new QAudioOutput and VoiceGenerator instances, and store - // them in m_audioOutput and m_voicegenerator, respectively. - m_audioOutput = new QAudioOutput(outputDeviceInfo, - m_format_output, this); - m_voicegenerator = new VoiceGenerator(m_format_output, - qmlObject->property("frequency").toReal(), - qmlObject->property("volume").toReal(), - this); - - // Connect m_audioOutput stateChanged signal to outputStateChanged. - connect(m_audioOutput, SIGNAL(stateChanged(QAudio::State)), - SLOT(outputStateChanged(QAudio::State))); -} - -/** - * Inits audio input. - */ -void GuitarTuner::initAudioInput() -{ - // Set up the input format. - m_format_input.setFrequency(DataFrequencyHzInput); - m_format_input.setCodec("audio/pcm"); - m_format_input.setSampleSize(16); - m_format_input.setChannels(1); - m_format_input.setByteOrder(QAudioFormat::LittleEndian); - m_format_input.setSampleType(QAudioFormat::SignedInt); - - // Obtain a default input device, and if the format is not - // supported, find the nearest format available. - QAudioDeviceInfo inputDeviceInfo( - QAudioDeviceInfo::defaultInputDevice()); - if (!inputDeviceInfo.isFormatSupported(m_format_input)) { - m_format_input = inputDeviceInfo.nearestFormat(m_format_input); - } - - // Create new QAudioInput and VoiceAnalyzer instances, and store - // them in m_audioInput and m_analyzer, respectively. - // Remember to set the cut-off percentage for voice analyzer. - m_audioInput = new QAudioInput(inputDeviceInfo, m_format_input, this); - m_analyzer = new VoiceAnalyzer(m_format_input, this); - m_analyzer->setCutOffPercentage(qmlObject->property("sensitivity").toReal()); - -} - -/** - * Receives a mode changed signal. - */ -void GuitarTuner::modeChanged(bool isInput) -{ - - - - // If the mode must be changed to input mode: - if (isInput) { - - // Stop audio output and audio generator. - m_audioOutput->stop(); - m_voicegenerator->stop(); - // Start the audio analyzer and then the audio input. - m_analyzer->start(qmlObject->property("frequency").toReal()); - m_audioInput->start(m_analyzer); - - } - // Else: - else { - - // Stop audio input and audio analyzer. - m_audioInput->stop(); - m_analyzer->stop(); - - // Set up the audio output. - - // If the current frequency of voice generator - // is not the same as the target frequency selected in the UI, - // update voice generator's frequency. - if (m_voicegenerator->frequency() != qmlObject->property("frequency").toReal()) { - m_voicegenerator->setFrequency(qmlObject->property("frequency").toReal()); - } - - // Start the voice generator and then the audio output. - m_voicegenerator->start(); - m_audioOutput->start(m_voicegenerator); - // Call setMaxVolumeLevel(1) to set the maximum volume louder. - setMaxVolumeLevel(qmlObject->property("volume").toReal()); - - // If the voice is muted, the voice is suspended - // in the outputStateChanged slot. - - } -} - -/** - * Receives a output state changed signal. - * Suspends the audio output, if the state is ActiveState - * and the voice is muted. - */ -void GuitarTuner::outputStateChanged(QAudio::State state) -{ - if (QAudio::ActiveState == state && qmlObject->property("isMuted").toBool()) { - // If the voice is muted, suspend the voice. - m_audioOutput->suspend(); - } -} - -/** - * Receives a mute state changed signal. - * Suspends the audio output or resumes it, depending of the - * isMuted parameter. - */ -void GuitarTuner::muteStateChanged(bool isMuted) -{ - if (isMuted) { - m_audioOutput->suspend(); - } - else { - m_audioOutput->resume(); - } -} - -/** - * Receives a target frequency signal. - */ -void GuitarTuner::targetFrequencyChanged(qreal targetFrequency) -{ - // If the output mode is active: - if (!qmlObject->property("isInput").toBool()) { - // Stop the audio output and voice generator. - m_audioOutput->stop(); - m_voicegenerator->stop(); - // Set the voice generator's frequency to the target frequency. - m_voicegenerator->setFrequency(targetFrequency); - // Start the voice generator and audio output. - m_voicegenerator->start(); - m_audioOutput->start(m_voicegenerator); - // Call setMaxVolumeLevel(1) to set the maximum volume louder. - setMaxVolumeLevel(qmlObject->property("volume").toReal()); - - // If the voice is muted, the voice is suspended - // in the outputStateChanged slot. - - } - // Else: - else { - - // Stop the audio input and voice analyzer. - m_audioInput->stop(); - m_analyzer->stop(); - // Start the voice analyzer with new frequency and audio input. - m_analyzer->start(targetFrequency); - m_audioInput->start(m_analyzer); - - } -} - -/** - * This method provides a hack to set the maximum volume level in - * Symbian. - */ -void GuitarTuner::setMaxVolumeLevel(qreal percent) -{ - if (percent >= 1.0) { - percent = 1.0; - } - else if (percent <= 0.0) { - percent = 0.0; - } - percent = percent*0.5 + 0.5; - // Warning! This is a hack, which can break when the QtMobility - // changes. Use at your own risk. -#ifdef Q_OS_SYMBIAN - unsigned int *pointer_to_abstract_audio - = (unsigned int*)( (unsigned char*)m_audioOutput + 8 ); - unsigned int *dev_sound_wrapper - = (unsigned int*)(*pointer_to_abstract_audio) + 16; - unsigned int *temp - = ((unsigned int*)(*dev_sound_wrapper) + 6); - CMMFDevSound *dev_sound = (CMMFDevSound*)(*temp); - dev_sound->SetVolume((unsigned int) - (percent*(float)dev_sound->MaxVolume())); -#endif -} - -/** - * A function used to lock the orientation. - */ -void GuitarTuner::setOrientation(Orientation orientation) -{ - // TODO: Needs a Qt5 implmentation - Q_UNUSED(orientation) -} diff --git a/examples/mobile/guitartuner/src/guitartuner.h b/examples/mobile/guitartuner/src/guitartuner.h deleted file mode 100644 index a1eff87c..00000000 --- a/examples/mobile/guitartuner/src/guitartuner.h +++ /dev/null @@ -1,96 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef MAINWINDOW_H -#define MAINWINDOW_H - -#include <QMainWindow> -#include <QtDeclarative> -#include <QAudioDeviceInfo> -#include <QAudioOutput> -#include <QAudioInput> -#include "voicegenerator.h" -#include "voiceanalyzer.h" - -const int DataFrequencyHzOutput = 44100; -const int DataFrequencyHzInput = 48000; - -#define MAX_INPUT_VALUE 50 -#define MIN_INPUT_VALUE -50 - -class GuitarTuner : public QMainWindow -{ - Q_OBJECT -public: - enum Orientation { - LockPortrait, - LockLandscape, - Auto - }; - explicit GuitarTuner(QWidget *parent = 0); - qreal getVolume(); - qreal getMicrophoneSensitivity(); - bool getMuteState(); - void setOrientation(Orientation orientation); - -signals: - -public slots: - void modeChanged(bool isInput); - void muteStateChanged(bool isMuted); - void targetFrequencyChanged(qreal targetFrequency); - void outputStateChanged(QAudio::State state); - void setMaxVolumeLevel(qreal); - -private: - void initAudioOutput(); - void initAudioInput(); - VoiceGenerator *m_voicegenerator; - VoiceAnalyzer *m_analyzer; - QObject *qmlObject; - QAudioOutput *m_audioOutput; - QAudioInput *m_audioInput; - QAudioFormat m_format_output; - QAudioFormat m_format_input; - QDeclarativeView *m_guitarTunerUI; -}; - -#endif // MAINWINDOW_H diff --git a/examples/mobile/guitartuner/src/guitartuner.rc b/examples/mobile/guitartuner/src/guitartuner.rc deleted file mode 100644 index 5cd35118..00000000 --- a/examples/mobile/guitartuner/src/guitartuner.rc +++ /dev/null @@ -1,23 +0,0 @@ -IDI_ICON1 ICON DISCARDABLE "/../images/guitartuner_icon.ico" - -1 VERSIONINFO -FILEVERSION 1,2,0,0 -PRODUCTVERSION 1,2,0,0 -BEGIN - BLOCK "StringFileInfo" - BEGIN - BLOCK "040904E4" - BEGIN - VALUE "CompanyName", "Nokia Corporation\0" - VALUE "FileDescription", "Qt Quick example application.\0" - VALUE "FileVersion", "1.2.0\0" - VALUE "LegalCopyright", "Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)." - VALUE "ProductName", "Guitar Tuner\0" - VALUE "ProductVersion", "1.2.0\0" - END - END - BLOCK "VarFileInfo" - BEGIN - VALUE "Translation", 0x409, 1252 - END -END diff --git a/examples/mobile/guitartuner/src/guitartuner.ui b/examples/mobile/guitartuner/src/guitartuner.ui deleted file mode 100644 index 36ee1bd8..00000000 --- a/examples/mobile/guitartuner/src/guitartuner.ui +++ /dev/null @@ -1,178 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?> -<ui version="4.0"> - <class>GuitarTuner</class> - <widget class="QWidget" name="GuitarTuner"> - <property name="geometry"> - <rect> - <x>0</x> - <y>0</y> - <width>187</width> - <height>279</height> - </rect> - </property> - <property name="windowTitle"> - <string>GuitarTuner</string> - </property> - <layout class="QVBoxLayout" name="verticalLayout_2"> - <item> - <widget class="QLabel" name="tabulatorIcon"> - <property name="text"> - <string notr="true"/> - </property> - <property name="pixmap"> - <pixmap resource="../guitartuner.qrc">:/images/guitartab.svg</pixmap> - </property> - <property name="alignment"> - <set>Qt::AlignCenter</set> - </property> - </widget> - </item> - <item> - <widget class="QSlider" name="correctSoundSlider"> - <property name="enabled"> - <bool>false</bool> - </property> - <property name="autoFillBackground"> - <bool>false</bool> - </property> - <property name="minimum"> - <number>-50</number> - </property> - <property name="maximum"> - <number>50</number> - </property> - <property name="orientation"> - <enum>Qt::Horizontal</enum> - </property> - <property name="tickPosition"> - <enum>QSlider::TicksAbove</enum> - </property> - <property name="tickInterval"> - <number>50</number> - </property> - </widget> - </item> - <item> - <layout class="QHBoxLayout" name="horizontalLayout"> - <item> - <widget class="QToolButton" name="buttonPrev"> - <property name="sizePolicy"> - <sizepolicy hsizetype="Preferred" vsizetype="Fixed"> - <horstretch>0</horstretch> - <verstretch>0</verstretch> - </sizepolicy> - </property> - <property name="text"> - <string>...</string> - </property> - <property name="arrowType"> - <enum>Qt::LeftArrow</enum> - </property> - </widget> - </item> - <item> - <widget class="QLabel" name="noteLabel"> - <property name="text"> - <string>A</string> - </property> - <property name="alignment"> - <set>Qt::AlignCenter</set> - </property> - </widget> - </item> - <item> - <widget class="QToolButton" name="buttonNext"> - <property name="sizePolicy"> - <sizepolicy hsizetype="Preferred" vsizetype="Fixed"> - <horstretch>0</horstretch> - <verstretch>0</verstretch> - </sizepolicy> - </property> - <property name="text"> - <string>...</string> - </property> - <property name="autoRaise"> - <bool>false</bool> - </property> - <property name="arrowType"> - <enum>Qt::RightArrow</enum> - </property> - </widget> - </item> - </layout> - </item> - <item> - <widget class="QPushButton" name="modeButton"> - <property name="text"> - <string>Change mode</string> - </property> - </widget> - </item> - <item> - <widget class="Line" name="line"> - <property name="orientation"> - <enum>Qt::Horizontal</enum> - </property> - </widget> - </item> - <item> - <layout class="QHBoxLayout" name="horizontalLayout_2"> - <item> - <widget class="QSlider" name="soundSlider"> - <property name="value"> - <number>65</number> - </property> - <property name="orientation"> - <enum>Qt::Vertical</enum> - </property> - </widget> - </item> - <item> - <widget class="QToolButton" name="soundButton"> - <property name="text"> - <string>...</string> - </property> - <property name="icon"> - <iconset resource="../guitartuner.qrc"> - <normaloff>:/images/note.svg</normaloff> - <normalon>:/images/noteNo.svg</normalon> - <activeon>:/images/noteNo.svg</activeon>:/images/note.svg</iconset> - </property> - <property name="iconSize"> - <size> - <width>30</width> - <height>30</height> - </size> - </property> - <property name="checkable"> - <bool>true</bool> - </property> - <property name="autoRaise"> - <bool>true</bool> - </property> - </widget> - </item> - <item> - <widget class="QLabel" name="micSensitivityLabel"> - <property name="sizePolicy"> - <sizepolicy hsizetype="Fixed" vsizetype="Preferred"> - <horstretch>0</horstretch> - <verstretch>0</verstretch> - </sizepolicy> - </property> - <property name="text"> - <string>microphone -sensitivity</string> - </property> - </widget> - </item> - </layout> - </item> - </layout> - </widget> - <layoutdefault spacing="6" margin="11"/> - <resources> - <include location="../guitartuner.qrc"/> - </resources> - <connections/> -</ui> diff --git a/examples/mobile/guitartuner/src/guitartunerui.cpp b/examples/mobile/guitartuner/src/guitartunerui.cpp deleted file mode 100644 index b0263ba9..00000000 --- a/examples/mobile/guitartuner/src/guitartunerui.cpp +++ /dev/null @@ -1,342 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QTimer> - -#include "guitartunerui.h" -#include "ui_guitartunerui.h" - -GuitarTunerUI::GuitarTunerUI(QWidget *parent) : - QWidget(parent), - ui(new Ui::GuitarTunerUI), - m_maximumPrecision(0) -{ - ui->setupUi(this); - - // Set up the class attributes to proper values. - m_outputActive = false; - m_muted = false; - m_outputVolumeLevel = getVolumeFromSoundSlider(); - m_inputVolumeLevel = 1.0 - m_outputVolumeLevel; - - // Set up the current tone, the frequency, and the name for it. - m_currentToneIndex = 5; - updateFrequencyByToneIndex(m_currentToneIndex); - - // Connect the signals from UI into proper slots. - connect(ui->soundSlider, SIGNAL(valueChanged(int)), - SLOT(changeVolume())); - connect(ui->soundButton, SIGNAL(toggled(bool)), - SLOT(toggleSound(bool))); - connect(ui->modeButton, SIGNAL(clicked()), - SLOT(toggleInputOrOutput())); - connect(ui->buttonNext, SIGNAL(clicked()), SLOT(next())); - connect(ui->buttonPrev, SIGNAL(clicked()), SLOT(prev())); - - // Initialise up the UI by calling toggleInputOrOutput - // for the first time. - toggleInputOrOutput(); -} - -GuitarTunerUI::~GuitarTunerUI() -{ - delete ui; -} - -void GuitarTunerUI::changeEvent(QEvent *e) -{ - QWidget::changeEvent(e); - switch (e->type()) { - case QEvent::LanguageChange: - ui->retranslateUi(this); - break; - default: - break; - } -} - -/** - * Returns a value from 0 to 1, representing the volume. - */ -qreal GuitarTunerUI::getVolumeFromSoundSlider() const -{ - qreal value = ui->soundSlider->value(); - return value/ui->soundSlider->maximum(); -} - -/** - * Updates the m_currentToneFrequency and m_currentToneString, - * according to the given index. Also updates the UI. - */ -void GuitarTunerUI::updateFrequencyByToneIndex(int index) -{ - - switch (index) { - case 0: { - m_currentToneFrequency = FrequencyE; - m_currentToneString = "E"; - break; - } - case 1: { - m_currentToneFrequency = FrequencyA; - m_currentToneString = "A"; - break; - } - case 2: { - m_currentToneFrequency = FrequencyD; - m_currentToneString = "D"; - break; - } - case 3: { - m_currentToneFrequency = FrequencyG; - m_currentToneString = "G"; - break; - } - case 4: { - m_currentToneFrequency = FrequencyB; - m_currentToneString = "B"; - break; - } - case 5: { - m_currentToneFrequency = FrequencyE2; - m_currentToneString = "e"; - break; - } - default: { - qDebug() << "invalid index!" << index; - } - } - // Set the noteLabel text according to the current tone. - ui->noteLabel->setText(m_currentToneString); -} - -/** - * Returns the volume. - */ -qreal GuitarTunerUI::getVolume() const -{ - return m_outputVolumeLevel; -} - -/** - * Returns true if the sound is muted. - */ -bool GuitarTunerUI::getMuteState() const -{ - return m_muted; -} - - -/** - * Returns the microphone sensitivity. - */ -qreal GuitarTunerUI::getMicrophoneSensitivity() const -{ - return m_inputVolumeLevel; -} - -/** - * Returns whether the input mode is active. - */ -bool GuitarTunerUI::isInputModeActive() const -{ - return !m_outputActive; -} - -/** - * Returns the current target frequency. - */ -qreal GuitarTunerUI::getFrequency() const -{ - return m_currentToneFrequency; -} - -/** - * Toggles the sound according to the parameter. - * Has no effect if output is not active. - */ -void GuitarTunerUI::toggleSound(bool noSound) -{ - if (!m_outputActive) { - return; - } - m_muted = noSound; - emit muteChanged(m_muted); -} - -/** - * Changes the volume or microphone sensitivity. - */ -void GuitarTunerUI::changeVolume() -{ - qreal resultingAmplitude = getVolumeFromSoundSlider(); - qDebug() << "resultingAmplitude" << resultingAmplitude; - if (m_outputActive) { - m_outputVolumeLevel = resultingAmplitude; - emit volumeChanged(resultingAmplitude); - } - else { - m_inputVolumeLevel = resultingAmplitude; - emit microphoneSensitivityChanged(1.0-resultingAmplitude); - } -} - -/** - * Toggles input or output, depending of the current state. - */ -void GuitarTunerUI::toggleInputOrOutput() -{ - // If output mode is active: - if (m_outputActive) { - // Change UI to correspond to the input mode. - m_outputActive = false; - ui->soundSlider->setValue(m_inputVolumeLevel*100); - ui->soundButton->setDisabled(true); - ui->soundButton->hide(); - ui->micSensitivityLabel->show(); - emit modeChanged(true); - ui->modeButton->setText("To tone mode"); - } - // Else: - else { - // Change UI to correspond to the output mode. - m_outputActive = true; - ui->soundSlider->setValue(m_outputVolumeLevel*100); - ui->soundButton->setDisabled(false); - ui->micSensitivityLabel->hide(); - ui->soundButton->show(); - emit modeChanged(false); - ui->modeButton->setText("To listen mode"); - } -} - -/** - * Receives the low voice signal. - */ -void GuitarTunerUI::lowVoice() -{ - if (ui->noteLabel->font().bold()) { - QFont font; - font.setBold(false); - font.setUnderline(false); - ui->noteLabel->setFont(font); - } -} - -/** - * Receives the voice difference signal. - * The difference is qreal, where increase of 1 corresponds - * to increase of 1 tone to the target frequency. - */ -void GuitarTunerUI::voiceDifference(qreal difference) -{ - if (ui->noteLabel->font().bold()) { - QFont font; - font.setBold(false); - font.setUnderline(false); - ui->noteLabel->setFont(font); - } - ui->correctSoundSlider->setValue(difference*m_maximumPrecision); -} - -/** - * Receives the correct frequency signal. - * Makes the UI to visualize correct frequency event. - */ -void GuitarTunerUI::correctFrequencyObtained() -{ - qDebug() << "CORRECT FREQUENCY"; - QFont font; - font.setBold(true); - font.setUnderline(true); - ui->noteLabel->setFont(font); -} - -/** - * Sets up the maximum voice difference. - */ -void GuitarTunerUI::setMaximumVoiceDifference(int max) -{ - // Assert that the maximum precision is known. - Q_ASSERT(m_maximumPrecision != 0); - // Set the maximum and minimum values of the correctSoundSlider - // to the +- max*m_maximumPrecision, and set the tick interval - // to be m_maximumPrecision. - ui->correctSoundSlider->setMaximum(max*m_maximumPrecision); - ui->correctSoundSlider->setMinimum(-max*m_maximumPrecision); - ui->correctSoundSlider->setTickInterval(max*m_maximumPrecision); -} - -/** - * Stores the maximum precision per note. Used to setup the - * correct sound slider. - */ -void GuitarTunerUI::setMaximumPrecisionPerNote(int max) -{ - m_maximumPrecision = max; -} - -/** - * Changes the tone to the next value. - */ -void GuitarTunerUI::next() -{ - changeTone((m_currentToneIndex + 1) % 6); -} - -/** - * Changes the tone to the previous value. - */ -void GuitarTunerUI::prev() -{ - changeTone((m_currentToneIndex + 5) % 6); -} - -/** - * Changes the tone according to the new index. - */ -void GuitarTunerUI::changeTone(int newIndex) -{ - m_currentToneIndex = newIndex; - updateFrequencyByToneIndex(m_currentToneIndex); - qDebug() << "targetFrequencyChanged" << m_currentToneFrequency; - emit targetFrequencyChanged(m_currentToneFrequency); -} diff --git a/examples/mobile/guitartuner/src/guitartunerui.h b/examples/mobile/guitartuner/src/guitartunerui.h deleted file mode 100644 index f87015b0..00000000 --- a/examples/mobile/guitartuner/src/guitartunerui.h +++ /dev/null @@ -1,112 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef GUITARTUNERUI_H -#define GUITARTUNERUI_H - -#include <QWidget> -#include <QDebug> - -namespace Ui { - class GuitarTunerUI; -} - -const qreal FrequencyE = 82.407; -const qreal FrequencyA = 110.00; -const qreal FrequencyD = 146.83; -const qreal FrequencyG = 196.00; -const qreal FrequencyB = 246.94; -const qreal FrequencyE2 = 329.63; - -class GuitarTunerUI : public QWidget -{ - Q_OBJECT - -public: - explicit GuitarTunerUI(QWidget *parent = 0); - ~GuitarTunerUI(); - - qreal getVolume() const; - bool getMuteState() const; - qreal getMicrophoneSensitivity() const; - bool isInputModeActive() const; - qreal getFrequency() const; - int getScaleMaximumValue() const; - void setMaximumVoiceDifference(int max); - void setMaximumPrecisionPerNote(int max); - -public slots: - void toggleSound(bool off); - void next(); - void prev(); - void changeVolume(); - void toggleInputOrOutput(); - - void lowVoice(); - void voiceDifference(qreal difference); - void correctFrequencyObtained(); - -signals: - void modeChanged(bool isInput); - void volumeChanged(qreal volume); - void microphoneSensitivityChanged(qreal sensitivity); - void muteChanged(bool isMuted); - void targetFrequencyChanged(qreal targetFrequency); - -protected: - void changeEvent(QEvent *e); - -private: - Ui::GuitarTunerUI *ui; - void changeTone(int newIndex); - qreal getVolumeFromSoundSlider() const; - int m_currentToneIndex; - QString m_currentToneString; - qreal m_currentToneFrequency; - void updateFrequencyByToneIndex(int index); - bool m_outputActive; - bool m_muted; - qreal m_outputVolumeLevel; - qreal m_inputVolumeLevel; - int m_maximumPrecision; -}; - -#endif // GUITARTUNERUI_H diff --git a/examples/mobile/guitartuner/src/guitartunerui.ui b/examples/mobile/guitartuner/src/guitartunerui.ui deleted file mode 100644 index af7b585b..00000000 --- a/examples/mobile/guitartuner/src/guitartunerui.ui +++ /dev/null @@ -1,178 +0,0 @@ -<?xml version="1.0" encoding="UTF-8"?> -<ui version="4.0"> - <class>GuitarTunerUI</class> - <widget class="QWidget" name="GuitarTunerUI"> - <property name="geometry"> - <rect> - <x>0</x> - <y>0</y> - <width>187</width> - <height>279</height> - </rect> - </property> - <property name="windowTitle"> - <string>GuitarTunerUI</string> - </property> - <layout class="QVBoxLayout" name="verticalLayout_2"> - <item> - <widget class="QLabel" name="tabulatorIcon"> - <property name="text"> - <string notr="true"/> - </property> - <property name="pixmap"> - <pixmap resource="../GuitarTuner.qrc">:/images/guitartab.svg</pixmap> - </property> - <property name="alignment"> - <set>Qt::AlignCenter</set> - </property> - </widget> - </item> - <item> - <widget class="QSlider" name="correctSoundSlider"> - <property name="enabled"> - <bool>false</bool> - </property> - <property name="autoFillBackground"> - <bool>false</bool> - </property> - <property name="minimum"> - <number>-50</number> - </property> - <property name="maximum"> - <number>50</number> - </property> - <property name="orientation"> - <enum>Qt::Horizontal</enum> - </property> - <property name="tickPosition"> - <enum>QSlider::TicksAbove</enum> - </property> - <property name="tickInterval"> - <number>50</number> - </property> - </widget> - </item> - <item> - <layout class="QHBoxLayout" name="horizontalLayout"> - <item> - <widget class="QToolButton" name="buttonPrev"> - <property name="sizePolicy"> - <sizepolicy hsizetype="Preferred" vsizetype="Fixed"> - <horstretch>0</horstretch> - <verstretch>0</verstretch> - </sizepolicy> - </property> - <property name="text"> - <string>...</string> - </property> - <property name="arrowType"> - <enum>Qt::LeftArrow</enum> - </property> - </widget> - </item> - <item> - <widget class="QLabel" name="noteLabel"> - <property name="text"> - <string>A</string> - </property> - <property name="alignment"> - <set>Qt::AlignCenter</set> - </property> - </widget> - </item> - <item> - <widget class="QToolButton" name="buttonNext"> - <property name="sizePolicy"> - <sizepolicy hsizetype="Preferred" vsizetype="Fixed"> - <horstretch>0</horstretch> - <verstretch>0</verstretch> - </sizepolicy> - </property> - <property name="text"> - <string>...</string> - </property> - <property name="autoRaise"> - <bool>false</bool> - </property> - <property name="arrowType"> - <enum>Qt::RightArrow</enum> - </property> - </widget> - </item> - </layout> - </item> - <item> - <widget class="QPushButton" name="modeButton"> - <property name="text"> - <string>Change mode</string> - </property> - </widget> - </item> - <item> - <widget class="Line" name="line"> - <property name="orientation"> - <enum>Qt::Horizontal</enum> - </property> - </widget> - </item> - <item> - <layout class="QHBoxLayout" name="horizontalLayout_2"> - <item> - <widget class="QSlider" name="soundSlider"> - <property name="value"> - <number>65</number> - </property> - <property name="orientation"> - <enum>Qt::Vertical</enum> - </property> - </widget> - </item> - <item> - <widget class="QToolButton" name="soundButton"> - <property name="text"> - <string>...</string> - </property> - <property name="icon"> - <iconset resource="../GuitarTuner.qrc"> - <normaloff>:/images/note.svg</normaloff> - <normalon>:/images/noteNo.svg</normalon> - <activeon>:/images/noteNo.svg</activeon>:/images/note.svg</iconset> - </property> - <property name="iconSize"> - <size> - <width>30</width> - <height>30</height> - </size> - </property> - <property name="checkable"> - <bool>true</bool> - </property> - <property name="autoRaise"> - <bool>true</bool> - </property> - </widget> - </item> - <item> - <widget class="QLabel" name="micSensitivityLabel"> - <property name="sizePolicy"> - <sizepolicy hsizetype="Fixed" vsizetype="Preferred"> - <horstretch>0</horstretch> - <verstretch>0</verstretch> - </sizepolicy> - </property> - <property name="text"> - <string>microphone -sensitivity</string> - </property> - </widget> - </item> - </layout> - </item> - </layout> - </widget> - <layoutdefault spacing="6" margin="11"/> - <resources> - <include location="../GuitarTuner.qrc"/> - </resources> - <connections/> -</ui> diff --git a/examples/mobile/guitartuner/src/main.cpp b/examples/mobile/guitartuner/src/main.cpp deleted file mode 100644 index eb188fe4..00000000 --- a/examples/mobile/guitartuner/src/main.cpp +++ /dev/null @@ -1,61 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QtWidgets/QApplication> -#include "guitartuner.h" - -int main(int argc, char *argv[]) -{ - QApplication a(argc, argv); - GuitarTuner w; - w.setOrientation(GuitarTuner::LockPortrait); - -#ifdef Q_OS_SYMBIAN - w.showFullScreen(); -#elif defined(Q_WS_MAEMO_5) || defined(Q_WS_MAEMO_6) - w.showMaximized(); -#else - w.show(); -#endif - - return a.exec(); -} - diff --git a/examples/mobile/guitartuner/src/mycomponents/Adjuster.qml b/examples/mobile/guitartuner/src/mycomponents/Adjuster.qml deleted file mode 100644 index 23f41fed..00000000 --- a/examples/mobile/guitartuner/src/mycomponents/Adjuster.qml +++ /dev/null @@ -1,132 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -import QtQuick 1.0 -import "adjustbars.js" as AdjustBars - -/* A barchart-like adjuster component. */ -Rectangle { - id: adjuster - - property real max: 100 - property real value: 0 - property bool created: false - - signal valueChanged(real value) - signal focusChangedByClick() - signal arrowPressedWhenValueOverLimits() - - function setValue(pValue) { - value = pValue; - AdjustBars.fillBars(value/max*AdjustBars.maxBars); - valueChanged(value); - } - - height: 60; width: 300 - color: "transparent" - Keys.onRightPressed: { - var val = value+max/AdjustBars.maxBars; - if (val <= max) { - value = val; - AdjustBars.fillBars(value/max*AdjustBars.maxBars); - valueChanged(value); - } - else { - arrowPressedWhenValueOverLimits() - } - } - Keys.onLeftPressed: { - var val = value-max/AdjustBars.maxBars; - if (0 <= val) { - value = val; - AdjustBars.fillBars(value/max*AdjustBars.maxBars); - valueChanged(value); - } - else { - arrowPressedWhenValueOverLimits() - } - } - Component.onCompleted: { - AdjustBars.createBars(); - AdjustBars.fillBars(value/max*AdjustBars.maxBars); - created = true; - } - Component.onDestruction: { - AdjustBars.destroyBars; - } - //Dynamic objects have to be recreated when the window size changes. - onWidthChanged: { - if (created) { - AdjustBars.destroyBars(); - AdjustBars.createBars(); - AdjustBars.fillBars(value/max*AdjustBars.maxBars); - } - } - onHeightChanged: { - if (created) { - AdjustBars.destroyBars(); - AdjustBars.createBars(); - AdjustBars.fillBars(value/max*AdjustBars.maxBars); - } - } - - MouseArea { - anchors.fill: parent - onPositionChanged: { - focusChangedByClick(); - var val = mouse.x/parent.width*parent.max; - if (0 < val && val < max) { - parent.value = val; - AdjustBars.fillBars(parent.value/parent.max*AdjustBars.maxBars); - valueChanged(parent.value); - } - } - onClicked: { - focusChangedByClick(); - var val = mouse.x/parent.width*parent.max; - if (0 < val && val < max) { - parent.value = val; - AdjustBars.fillBars(parent.value/parent.max*AdjustBars.maxBars); - valueChanged(parent.value); - } - } - } -} diff --git a/examples/mobile/guitartuner/src/mycomponents/Meter.qml b/examples/mobile/guitartuner/src/mycomponents/Meter.qml deleted file mode 100644 index 235cf46f..00000000 --- a/examples/mobile/guitartuner/src/mycomponents/Meter.qml +++ /dev/null @@ -1,113 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -import QtQuick 1.0 - -/* A meter component. */ -Rectangle { - id: meter - - property real value: 0 - property real minValue: -1 - property real maxValue: 1 - property alias imageSize: meterImage.sourceSize - - function valueChanged(pValue) { - value = pValue; - scaleValueToAngle(); - } - function scaleValueToAngle() { - pointer.angle = (((value-minValue)/(maxValue-minValue))* - (pointer.angleMax-pointer.angleMin))+ - pointer.angleMin; - } - - color: "transparent" - - Image { - id: meterImage - - smooth: true - source: "./images/meterBG.png" - anchors.fill: parent - } - - Image { - id:pointerShadow - - x: pointer.x - 2 - y: pointer.y - 2 - height: pointer.height - smooth: true - source: "./images/pointerShadow.png" - transform: Rotation { - origin.x: 2 - origin.y: height - angle: -pointer.angle - } - } - - Image { - id: pointer - - property real angle: 0 - property real angleMax: -45 - property real angleMin: 45 - - height: parent.height*0.92 - transformOrigin: "Bottom" - rotation: -angle - smooth: true - source: "./images/pointer.png" - anchors { - bottomMargin: 2 - bottom: parent.bottom; - horizontalCenter: parent.horizontalCenter - } - - Behavior on angle { - SpringAnimation { - spring: 1.4 - damping: 0.15 - } - } - } -} diff --git a/examples/mobile/guitartuner/src/mycomponents/NoteButtonView.qml b/examples/mobile/guitartuner/src/mycomponents/NoteButtonView.qml deleted file mode 100644 index 6936baf2..00000000 --- a/examples/mobile/guitartuner/src/mycomponents/NoteButtonView.qml +++ /dev/null @@ -1,85 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -import QtQuick 1.0 - -/* A view component for buttons for choosing notes. */ -ListView { - id: noteChooser - - property real currentFrequency: 82.407 - - signal noteSelected(string note, real frequency, int index) - - //Press down the button corresponding to the given note. - function pushButton(index) { - currentIndex = index; - } - - width: 50*model.count + spacing*(model.count-1); height: 50 - orientation: ListView.Horizontal - model: NotesModel {} - delegate: notesDelegate - keyNavigationWraps: true - boundsBehavior: Flickable.StopAtBounds - - Component { - id: notesDelegate - - ToggleButton { - id: noteButton - - width: height; height: noteChooser.height - offImageSource: offSource - onImageSource: onSource - state: noteButton.ListView.isCurrentItem ? "pressed" : "unPressed" - onSelected: { - noteChooser.noteSelected(note, frequency, index) - if (note != "Auto") { - currentFrequency = frequency - } - } - onPushed: { - noteButton.ListView.view.currentIndex = index - } - } - } -} diff --git a/examples/mobile/guitartuner/src/mycomponents/NotesModel.qml b/examples/mobile/guitartuner/src/mycomponents/NotesModel.qml deleted file mode 100644 index 6a395bbe..00000000 --- a/examples/mobile/guitartuner/src/mycomponents/NotesModel.qml +++ /dev/null @@ -1,106 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -import QtQuick 1.0 - -/* The model component for the NoteButtonView. */ -ListModel { - ListElement { - note: "E" - offSource: "./images/tuner_e.png" - onSource: "./images/tuner_e_on.png" - bigSource: "./mycomponents/images/big_e.png" - glowSource: "./mycomponents/images/glowing_e.png" - frequency: "82.407" - interval: "5" - } - ListElement { - note: "A" - offSource: "./images/tuner_a.png" - onSource: "./images/tuner_a_on.png" - bigSource: "./mycomponents/images/big_a.png" - glowSource: "./mycomponents/images/glowing_a.png" - frequency: "110.00" - interval: "5" - } - ListElement { - note: "D" - offSource: "./images/tuner_d.png" - onSource: "./images/tuner_d_on.png" - bigSource: "./mycomponents/images/big_d.png" - glowSource: "./mycomponents/images/glowing_d.png" - frequency: "146.83" - interval: "5" - } - ListElement { - note: "G" - offSource: "./images/tuner_g.png" - onSource: "./images/tuner_g_on.png" - bigSource: "./mycomponents/images/big_g.png" - glowSource: "./mycomponents/images/glowing_g.png" - frequency: "196.00" - interval: "4" - } - ListElement { - note: "B" - offSource: "./images/tuner_b.png" - onSource: "./images/tuner_b_on.png" - bigSource: "./mycomponents/images/big_b.png" - glowSource: "./mycomponents/images/glowing_b.png" - frequency: "246.94" - interval: "5" - } - ListElement { - note: "e" - offSource: "./images/tuner_e.png" - onSource: "./images/tuner_e_on.png" - bigSource: "./mycomponents/images/big_e.png" - glowSource: "./mycomponents/images/glowing_e.png" - frequency: "329.63" - interval: "9999" //Big enough that we can't move over this note - } - ListElement { - note: "Auto" - offSource: "./images/tuner_auto.png" - onSource: "./images/tuner_auto_on.png" - frequency: "82.407" - } -} diff --git a/examples/mobile/guitartuner/src/mycomponents/ToggleButton.qml b/examples/mobile/guitartuner/src/mycomponents/ToggleButton.qml deleted file mode 100644 index 4922d897..00000000 --- a/examples/mobile/guitartuner/src/mycomponents/ToggleButton.qml +++ /dev/null @@ -1,111 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -import QtQuick 1.0 - -/* A toggle button component. */ -Rectangle { - id: toggleButton - - property url offImageSource: "" - property url onImageSource: "" - property alias imageSource: buttonImage.source - - signal selected() - signal pushed() - - color: "transparent" - state: "unPressed" - onStateChanged: { - if (state == "pressed") { - selected() - } - } - - Image { - id: buttonImage - - smooth: true - anchors.fill: parent - } - MouseArea { - id: mouseArea - - anchors.fill: parent - onPressed: { - if (parent.state == "unPressed") { - pushed() - } - } - } - - states: [ - State { - name: "pressed" - PropertyChanges { - target: toggleButton - scale: 0.95 - imageSource: onImageSource - } - }, - State { - name: "unPressed" - PropertyChanges { - target: toggleButton - scale: 1/0.95 - imageSource: offImageSource - } - } - ] - - transitions: [ - Transition { - from: "unPressed" - to: "pressed" - reversible: true - PropertyAnimation { - target: toggleButton - properties: "scale" - duration: 100 - } - } - ] -} diff --git a/examples/mobile/guitartuner/src/mycomponents/adjustbars.js b/examples/mobile/guitartuner/src/mycomponents/adjustbars.js deleted file mode 100644 index 2ff7db25..00000000 --- a/examples/mobile/guitartuner/src/mycomponents/adjustbars.js +++ /dev/null @@ -1,89 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -/* JavaScript functions for creating, handling and - * destroying the bars of the adjuster component. */ - -var maxBars = 10; -var firstBarHeight = 5; -var bars = new Array(maxBars); -var colors = new Array(maxBars); -var barWidthFactor = 2.3; - -function createBars() { - var barWidth = adjuster.width/maxBars/barWidthFactor; - for (var i = 1; i <= maxBars; i++) { - //Create, configure and store the bars. - var bar = Qt.createQmlObject('import QtQuick 1.0; Rectangle {smooth: true}', adjuster, "dynamicBar"); - bar.width = barWidth; - bar.height = firstBarHeight+(i/maxBars)*(adjuster.height*0.8-firstBarHeight); - bar.radius = bar.width/2; - bar.x = (i-1)*(barWidthFactor*barWidth); - bar.y = adjuster.height/2 - bar.height/2; - bars[i-1] = bar; - - //Calculate and store the colors - if (i < maxBars/2) { - colors[i-1] = Qt.rgba(1-i/(maxBars/2), 1, 1-i/(maxBars/2), i); - } - else { - colors[i-1] = Qt.rgba((i-(maxBars/2))/(maxBars/2), 1-((i-(maxBars/2))/(maxBars/2)), 0, i); - } - } -} - -function destroyBars() { - for (var i = 0; i < maxBars; i++) { - bars[i].color = "transparent" //Colors must be set to transparent or otherwise the bars will stay appeared. - bars[i].destroy(); - } -} - -function fillBars(barNumber) { - //Set the color for the bars (transparent from the selected bar to the end). - for (var i = 0; i < maxBars; i++) { - if (i < barNumber) { - bars[i].color = colors[i]; - } - else { - bars[i].color = "black"; - } - } -} diff --git a/examples/mobile/guitartuner/src/mycomponents/images/big_a.png b/examples/mobile/guitartuner/src/mycomponents/images/big_a.png Binary files differdeleted file mode 100644 index 3838e766..00000000 --- a/examples/mobile/guitartuner/src/mycomponents/images/big_a.png +++ /dev/null diff --git a/examples/mobile/guitartuner/src/mycomponents/images/big_b.png b/examples/mobile/guitartuner/src/mycomponents/images/big_b.png Binary files differdeleted file mode 100644 index 114b32d3..00000000 --- a/examples/mobile/guitartuner/src/mycomponents/images/big_b.png +++ /dev/null diff --git a/examples/mobile/guitartuner/src/mycomponents/images/big_d.png b/examples/mobile/guitartuner/src/mycomponents/images/big_d.png Binary files differdeleted file mode 100644 index 3ede9f0f..00000000 --- a/examples/mobile/guitartuner/src/mycomponents/images/big_d.png +++ /dev/null diff --git 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differdeleted file mode 100644 index a97e4224..00000000 --- a/examples/mobile/guitartuner/src/mycomponents/images/volume_off.png +++ /dev/null diff --git a/examples/mobile/guitartuner/src/voiceanalyzer.cpp b/examples/mobile/guitartuner/src/voiceanalyzer.cpp deleted file mode 100644 index d53b5ebb..00000000 --- a/examples/mobile/guitartuner/src/voiceanalyzer.cpp +++ /dev/null @@ -1,296 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "voiceanalyzer.h" - -/** - * Constant used to scale the cut-off density for the fft helper. - */ -const static float CutOffScaler = 0.05; - -/** - * Force the precision to be "1/PrecisionPerNote" notes - * near the target frequency. - */ -const static int PrecisionPerNote = 4; - -/** - * TargetFrequencyParameter is a constant which implies the index at - * which corresponds to the target frequency. - * 0.5 * N * 1/TargetFrequencyParameter is (about) the index which - * corresponds to the given target frequency. - * Effectively TargetFrequencyParameter = 2^z, and the z*TargetFrequency - * is the maximum frequency that can be noticed. - */ -const static int TargetFrequencyParameter = 4; - - -VoiceAnalyzer::VoiceAnalyzer(const QAudioFormat &format, QObject *parent): - QIODevice(parent), - m_format(format), - m_frequency(0), - m_position(0), - m_fftHelper(new FastFourierTransformer(this)) -{ - Q_ASSERT(qFuzzyCompare(M_SAMPLE_COUNT_MULTIPLIER, - float(2)/(M_TWELTH_ROOT_OF_2 -1.0))); - m_totalSampleCount = qRound(qreal(PrecisionPerNote) - *TargetFrequencyParameter - *M_SAMPLE_COUNT_MULTIPLIER); - m_samples.reserve(m_totalSampleCount); - int i = 2; - int j = 1; - for (; i < TargetFrequencyParameter; i *= 2) { - j++; - } - m_maximumVoiceDifference = j*12; - - setCutOffPercentage(CutOffScaler); -} - -/** - * Opens the parent QIODevice. Sets up the analysation parameters. - */ -void VoiceAnalyzer::start(qreal frequency) -{ - m_stepSize = (qreal) 1.0 * m_format.sampleRate() - / (TargetFrequencyParameter*2*frequency); - m_frequency = frequency; - open(QIODevice::WriteOnly); -} - -/** - * Closes the parent QIODevice, thus the voice is not analysed anymore. - * Resets the m_samples QList. - */ -void VoiceAnalyzer::stop() -{ - m_samples.clear(); - m_samples.reserve(m_totalSampleCount); - close(); -} - -/** - * Called when data is obtained. Stores each m_stepSize sample - * into a QList to be analysed. - */ -qint64 VoiceAnalyzer::writeData(const char *data, qint64 maxlen) -{ - const int channelBytes = m_format.sampleSize() / 8; - int sampleSize = m_format.channels() * channelBytes; - int m_stepSizeInBytes = m_stepSize*sampleSize; - // assert that each sample fits fully into the data - Q_ASSERT((m_position % sampleSize)==0); - const uchar *ptr = reinterpret_cast<const uchar *>(data); - while (m_position < maxlen) { - if (m_samples.size() < m_totalSampleCount) { - m_samples.append(getValueInt16(ptr+m_position)); - } - else { - analyzeVoice(); - m_samples.clear(); - m_samples.reserve(m_totalSampleCount); - // fast forward position to the first position after maxlen or to the maxlen - m_position += ((m_stepSizeInBytes - 1 + maxlen - m_position) / - m_stepSizeInBytes) * m_stepSizeInBytes; - break; - } - m_position += m_stepSizeInBytes; - } - m_position -= maxlen; - return maxlen; -} - -/** - * Interprets ptr as a pointer to int value and returns it. - */ -qint16 VoiceAnalyzer::getValueInt16(const uchar *ptr) -{ - qint16 realValue = 0; - if (m_format.sampleSize() == 8) - { - const qint16 value = *reinterpret_cast<const quint8*>(ptr); - if (m_format.sampleType() == QAudioFormat::UnSignedInt) { - realValue = value - M_MAX_AMPLITUDE_8BIT_SIGNED - 1; - } else if (m_format.sampleType() == QAudioFormat::SignedInt) { - realValue = value; - } - } else if (m_format.sampleSize() == 16) { - qint16 value = 0; - if (m_format.byteOrder() == QAudioFormat::LittleEndian) - value = qFromLittleEndian<quint16>(ptr); - else - value = qFromBigEndian<quint16>(ptr); - - if (m_format.sampleType() == QAudioFormat::UnSignedInt) { - realValue = value - M_MAX_AMPLITUDE_16BIT_SIGNED; - } else if (m_format.sampleType() == QAudioFormat::SignedInt) { - realValue = value; - } - } - return realValue; -} - -/** - * Takes a number between 0 and 1, scales it with CutOffScaler, - * multiplies it with maximum density, and then gives it - * to the fft helper. - */ -void VoiceAnalyzer::setCutOffPercentage(qreal cutoff) -{ - cutoff = CutOffScaler*cutoff; - if (m_format.sampleSize() == 8) { - float t = cutoff*m_totalSampleCount*M_MAX_AMPLITUDE_8BIT_SIGNED; - m_fftHelper->setCutOffForDensity(t); - } - else if (m_format.sampleSize() == 16) { - float t = cutoff*m_totalSampleCount*M_MAX_AMPLITUDE_16BIT_SIGNED; - m_fftHelper->setCutOffForDensity(t); - } -} - -/** - * Returns the current target frequency. - */ -qreal VoiceAnalyzer::frequency() -{ - return m_frequency; -} - -/** - * Returns the maximum absolute value sent by - * the voiceDifference() signal. - */ -int VoiceAnalyzer::getMaximumVoiceDifference() -{ - return m_maximumVoiceDifference; -} - -/** - * Returns the maximum precision per note - * near the target frequency. - */ -int VoiceAnalyzer::getMaximumPrecisionPerNote() -{ - return PrecisionPerNote; -} - -/** - * Analyzes the voice frequency and emits appropriate signals. - */ -void VoiceAnalyzer::analyzeVoice() -{ - m_fftHelper->calculateFFT(m_samples); - int index = m_fftHelper->getMaximumDensityIndex(); - - // If index == -1 - if (index == -1) { - // The voice is to be filtered away. - // Emit the lowVoice signal and return. - emit lowVoice(); - qDebug() << "low voice"; - return; - } - // Else, continue - - // Let the correctIndex to be - // the nearest index corresponding to the correct frequency. - qreal stepSizeInFrequency = (qreal)m_format.sampleRate() - / (m_totalSampleCount * m_stepSize); - qreal newFrequency = qreal(index) * stepSizeInFrequency; - // Calculate the nearest index corresponding to the correct frequency. - int correctIndex = qRound(m_frequency / stepSizeInFrequency); - qreal value = 0; - - // If the obtained frequency is more than - // log_2(TargetFrequencyParameter) octaves less than the m_frequency: - - // Note: - // Instead of m_frequency/TargetFrequencyParameter > newFrequency, - // the comparison is done without a div instructions by - // m_frequency > newFrequency * TargetFrequencyParameter. - - if (m_frequency > newFrequency * TargetFrequencyParameter) { - // Set the difference value to be -m_maximumVoiceDifference. - qDebug() << "compare" << "low" << newFrequency << m_frequency - stepSizeInFrequency * correctIndex << (m_frequency - stepSizeInFrequency * correctIndex) / stepSizeInFrequency; - value = -m_maximumVoiceDifference; - } - // Else, if the obtained frequency is more than - // log_2(TargetFrequencyParameter) octaves more than the m_frequency: - else if (m_frequency*TargetFrequencyParameter < newFrequency) { - // Set the difference value to be m_maximumVoiceDifference. - qDebug() << "compare" << "high" << newFrequency << m_frequency - stepSizeInFrequency * correctIndex << (m_frequency - stepSizeInFrequency * correctIndex) / stepSizeInFrequency; - value = m_maximumVoiceDifference; - } - // Else: - else { - // Calculate the difference between the obtained and the correct - // frequency in tones. - // Use stepSizeInFrequency * correctIndex instead of - // m_frequency so that the value is zero when there is correct - // voice obtained. Set the difference value to be - // log(frequency / target frequency) * 12 / log(2). - value = log(newFrequency / (stepSizeInFrequency * correctIndex)) - * 12 / M_LN2; - qDebug() << "compare" << value << newFrequency << m_frequency - stepSizeInFrequency * correctIndex << (m_frequency - stepSizeInFrequency * correctIndex) / stepSizeInFrequency; - } - - // Emit voiceDifference signal. - QVariant valueVar(value); //Has to be QVariant for QML - emit voiceDifference(valueVar); - - // If the correctIndex is index, emit the correctFrequency signal. - if (correctIndex == index) { - emit(correctFrequency()); - } -} - -/** - * Empty implementation for readData, since no data is provided - * by the VoiceAnalyzer class. - */ -qint64 VoiceAnalyzer::readData(char *data, qint64 maxlen) -{ - Q_UNUSED(data); - Q_UNUSED(maxlen); - - return 0; -} diff --git a/examples/mobile/guitartuner/src/voiceanalyzer.h b/examples/mobile/guitartuner/src/voiceanalyzer.h deleted file mode 100644 index 11127140..00000000 --- a/examples/mobile/guitartuner/src/voiceanalyzer.h +++ /dev/null @@ -1,94 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef VOICEANALYZER_H -#define VOICEANALYZER_H - -#include <QObject> -#include <QAudioFormat> -#include <QDebug> -#include <QtCore/qmath.h> -#include <QtCore/qendian.h> -#include <QVariant> - -#include "constants.h" -#include "fastfouriertransformer.h" -#include "math.h" - -class VoiceAnalyzer : public QIODevice -{ - Q_OBJECT -public: - VoiceAnalyzer(const QAudioFormat &format, QObject *parent = 0); - qint64 readData(char *data, qint64 maxlen); - qint64 writeData(const char *data, qint64 maxlen); - void start(qreal frequency); - void stop(); - qreal frequency(); - int getMaximumVoiceDifference(); - int getMaximumPrecisionPerNote(); - -public slots: - void setCutOffPercentage(qreal cutoff); - -private: - const QAudioFormat m_format; - QList<qint16> m_samples; - int m_totalSampleCount; - int m_maximumVoiceDifference; - - qint16 getValueInt16(const uchar *ptr); - int m_stepSize; - qreal m_frequency; - qint64 m_position; - FastFourierTransformer *m_fftHelper; - void analyzeVoice(); -signals: - void voiceDifference(QVariant frequency); - void correctFrequency(); - void lowVoice(); - -public slots: - -}; - - -#endif // VOICEANALYZER_H diff --git a/examples/mobile/guitartuner/src/voicegenerator.cpp b/examples/mobile/guitartuner/src/voicegenerator.cpp deleted file mode 100644 index 45f80104..00000000 --- a/examples/mobile/guitartuner/src/voicegenerator.cpp +++ /dev/null @@ -1,247 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "voicegenerator.h" - -const int BufferSizeMilliseconds = 100; - -VoiceGenerator::VoiceGenerator(const QAudioFormat &format, - qreal frequency, qreal amplitude, - QObject *parent) : - QIODevice(parent), - m_format(format), - m_amplitude(0.5) -{ - Q_ASSERT(m_format.sampleSize() % 8 == 0); - int sampleBytes = m_format.channels() * (m_format.sampleSize() / 8); - // + 1 to round up, just to be sure that all samples fit. - qint64 samplesInBuffer = m_format.sampleRate() - * BufferSizeMilliseconds / 1000 + 1; - qint64 length = samplesInBuffer * sampleBytes; - m_buffer.resize(length); - m_max_position = 0; - m_position = 0; - m_amplitude = amplitude; - setFrequency(frequency); -} - -VoiceGenerator::~VoiceGenerator() -{ -} - -/** - * Opens the parent QIODevice. - */ -void VoiceGenerator::start() -{ - open(QIODevice::ReadOnly); -} - -/** - * Closes the parent QIODevice. Resets the m_position to zero. - */ -void VoiceGenerator::stop() -{ - close(); - m_position = 0; -} - -/** - * Sets the frequency to new frequency. - */ -void VoiceGenerator::setFrequency(qreal frequency) -{ - Q_ASSERT(1 / frequency < BufferSizeMilliseconds); - this->m_frequency = frequency; - refreshData(); -} - -/** - * Sets the amplitude for the voice. - */ -void VoiceGenerator::setAmplitude(qreal amplitude) -{ - Q_ASSERT(amplitude >= 0); - m_amplitude = amplitude; - refreshData(); -} - -/** - * Returns the current frequency. - */ -qreal VoiceGenerator::frequency() -{ - return m_frequency; -} - -/** - * Generates voice data corresponding a sine voice with target frequency. - * The number of data generated is calculated - * and stored to m_max_position. - */ -void VoiceGenerator::refreshData() -{ - const int channelBytes = m_format.sampleSize() / 8; - const int sampleSize = m_format.channels() * channelBytes; - const qint64 voiceOscillationsInBuffer = BufferSizeMilliseconds - * m_frequency / 1000; - const qint64 voiceSamplesInBuffer = voiceOscillationsInBuffer - * m_format.sampleRate() / m_frequency; - m_max_position = voiceSamplesInBuffer * sampleSize; - qint64 dataGenerationLength = m_buffer.size(); - - - Q_ASSERT(m_max_position % (sampleSize) == 0); - Q_ASSERT(dataGenerationLength <= m_buffer.size()); - - short *t = (short*)m_buffer.data(); - - -/* - int te ; - static float fpos = 0.0f; - //dataGenerationLength>>=1; // in words - for (int f=0; f<dataGenerationLength; f++) { - te = (short)((sinf(fpos))* (65536.0f/2.0f)); - fpos += m_frequency/2000.0f; - t[f]= te; - }; - - m_amplitude = 1.0f; */ - uchar *ptr = reinterpret_cast<uchar *>(m_buffer.data()); - int sampleIndex = 0; - while (dataGenerationLength > 0) { - qreal realValue = 0; - if (sampleIndex < voiceSamplesInBuffer) { - realValue = m_amplitude - *qSin(2.0f * M_PI * m_frequency - * qreal(sampleIndex % m_format.sampleRate()) - / m_format.sampleRate()); - } - for (int i=0; i<m_format.channels(); ++i) { - setValue(ptr, realValue); - ptr += channelBytes; - dataGenerationLength -= channelBytes; - } - ++sampleIndex; - } -} - -/** - * Stores the realValue into bytes pointed by ptr as an int value. - * Align-safe. - */ -void VoiceGenerator::setValue(uchar *ptr, qreal realValue) { - if (m_format.sampleSize() == 8) - { - quint8 value = 0; - if (m_format.sampleType() == QAudioFormat::UnSignedInt) { - value = static_cast<quint8>( - qRound((1.0 + realValue) / 2 - * M_MAX_AMPLITUDE_8BIT_UNSIGNED)); - } else if (m_format.sampleType() == QAudioFormat::SignedInt) { - value = static_cast<qint8>( - qRound(realValue - * M_MAX_AMPLITUDE_8BIT_SIGNED)); - } - *reinterpret_cast<quint8*>(ptr) = value; - } else if (m_format.sampleSize() == 16) { - quint16 value = 0; - if (m_format.sampleType() == QAudioFormat::UnSignedInt) { - value = static_cast<quint16>( - qRound((1.0 + realValue) / 2 - * M_MAX_AMPLITUDE_16BIT_UNSIGNED)); - } else if (m_format.sampleType() == QAudioFormat::SignedInt) { - value = static_cast<qint16>( - qRound(realValue - * M_MAX_AMPLITUDE_16BIT_SIGNED)); - } - if (m_format.byteOrder() == QAudioFormat::LittleEndian) - qToLittleEndian<qint16>(value, ptr); - else - qToBigEndian<qint16>(value, ptr); - } -} - -qint64 VoiceGenerator::bytesAvailable() const -{ - return m_max_position + QIODevice::bytesAvailable(); -} - -/** - * Called by the QIODevice. Puts maxlen amount of voice - * samples into the data array. - */ -qint64 VoiceGenerator::readData(char *data, qint64 maxlen) -{ - qint64 total = 0; - qint64 chunk = 0; - while (total < maxlen) { - if (maxlen - total >= m_max_position - m_position) { - // the needed buffer is longer than the currently - // available buffer from m_position to the m_max_position - chunk = m_max_position - m_position; - memcpy(data, m_buffer.constData() + m_position, chunk); - m_position = 0; - } - else { - // we can copy the needed data directly, and the loop will end - chunk = maxlen - total; - memcpy(data, m_buffer.constData() + m_position, chunk); - m_position = (m_position + chunk) % m_max_position; - } - data += chunk; - total += chunk; - } - return total; -} - -/** - * Empty implementation for writeData, since no data is provided - * for the VoiceGenerator class. - */ -qint64 VoiceGenerator::writeData(const char *data, qint64 maxlen) -{ - Q_UNUSED(data); - Q_UNUSED(maxlen); - - return 0; -} diff --git a/examples/mobile/guitartuner/src/voicegenerator.h b/examples/mobile/guitartuner/src/voicegenerator.h deleted file mode 100644 index 1cbdf96a..00000000 --- a/examples/mobile/guitartuner/src/voicegenerator.h +++ /dev/null @@ -1,87 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef VOICEGENERATOR_H -#define VOICEGENERATOR_H - -#include <QIODevice> -#include <QByteArray> -#include <QAudioFormat> -#include <QtCore/qmath.h> -#include <QtCore/qendian.h> -#include <QDebug> - -#include "constants.h" - - -class VoiceGenerator : public QIODevice -{ - Q_OBJECT -public: - VoiceGenerator(const QAudioFormat &format, qreal frequency, qreal amplitude, QObject *parent = 0); - ~VoiceGenerator(); - void setFrequency(qreal frequency); - qint64 readData(char *data, qint64 maxlen); - qint64 writeData(const char *data, qint64 maxlen); - qint64 bytesAvailable() const; - qreal frequency(); -signals: - -public slots: - void setAmplitude(qreal amplitude); - void start(); - void stop(); - -private: - void setValue(uchar *ptr, qreal realValue); - void refreshData(); - const QAudioFormat m_format; - // buffer to store the data - QByteArray m_buffer; - // current position in buffer - qint64 m_position; - // max position depends on the sample rate of format and the frequency of voice - qint64 m_max_position; - qreal m_amplitude; - qreal m_frequency; -}; - -#endif // VOICEGENERATOR_H |
