/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the QtMultimedia module of the Qt Toolkit.

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** No Commercial Usage

** This file contains pre-release code and may not be distributed.

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** contained in the Technology Preview License Agreement accompanying

** this package.

**

** 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

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**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

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**

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** $QT_END_LICENSE$

**

****************************************************************************/

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of other Qt classes.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include <windows.h>

#include <mmsystem.h>

#include "qaudiodeviceinfo_win32_p.h"

QT_BEGIN_NAMESPACE

// For mingw toolchain mmsystem.h only defines half the defines, so add if needed.

#ifndef WAVE_FORMAT_44M08

#define WAVE_FORMAT_44M08 0x00000100

#define WAVE_FORMAT_44S08 0x00000200

#define WAVE_FORMAT_44M16 0x00000400

#define WAVE_FORMAT_44S16 0x00000800

#define WAVE_FORMAT_48M08 0x00001000

#define WAVE_FORMAT_48S08 0x00002000

#define WAVE_FORMAT_48M16 0x00004000

#define WAVE_FORMAT_48S16 0x00008000

#define WAVE_FORMAT_96M08 0x00010000

#define WAVE_FORMAT_96S08 0x00020000

#define WAVE_FORMAT_96M16 0x00040000

#define WAVE_FORMAT_96S16 0x00080000

#endif

QAudioDeviceInfoInternal::QAudioDeviceInfoInternal(QByteArray dev, QAudio::Mode mode)

{

    device = QLatin1String(dev);

    this->mode = mode;

    updateLists();

}

QAudioDeviceInfoInternal::~QAudioDeviceInfoInternal()

{

    close();

}

bool QAudioDeviceInfoInternal::isFormatSupported(const QAudioFormat& format) const

{

    return testSettings(format);

}

QAudioFormat QAudioDeviceInfoInternal::preferredFormat() const

{

    QAudioFormat nearest;

    if(mode == QAudio::AudioOutput) {

        nearest.setFrequency(44100);

        nearest.setChannelCount(2);

        nearest.setByteOrder(QAudioFormat::LittleEndian);

        nearest.setSampleType(QAudioFormat::SignedInt);

        nearest.setSampleSize(16);

        nearest.setCodec(QLatin1String("audio/pcm"));

    } else {

        nearest.setFrequency(11025);

        nearest.setChannelCount(1);

        nearest.setByteOrder(QAudioFormat::LittleEndian);

        nearest.setSampleType(QAudioFormat::SignedInt);

        nearest.setSampleSize(8);

        nearest.setCodec(QLatin1String("audio/pcm"));

    }

    return nearest;

}

QAudioFormat QAudioDeviceInfoInternal::nearestFormat(const QAudioFormat& format) const

{

    if(testSettings(format))

        return format;

    else

        return preferredFormat();

}

QString QAudioDeviceInfoInternal::deviceName() const

{

    return device;

}

QStringList QAudioDeviceInfoInternal::codecList()

{

    updateLists();

    return codecz;

}

QList<int> QAudioDeviceInfoInternal::frequencyList()

{

    updateLists();

    return freqz;

}

QList<int> QAudioDeviceInfoInternal::channelsList()

{

    updateLists();

    return channelz;

}

QList<int> QAudioDeviceInfoInternal::sampleSizeList()

{

    updateLists();

    return sizez;

}

QList<QAudioFormat::Endian> QAudioDeviceInfoInternal::byteOrderList()

{

    updateLists();

    return byteOrderz;

}

QList<QAudioFormat::SampleType> QAudioDeviceInfoInternal::sampleTypeList()

{

    updateLists();

    return typez;

}

bool QAudioDeviceInfoInternal::open()

{

    return true;

}

void QAudioDeviceInfoInternal::close()

{

}

bool QAudioDeviceInfoInternal::testSettings(const QAudioFormat& format) const

{

    // Set nearest to closest settings that do work.

    // See if what is in settings will work (return value).

    bool failed = false;

    bool match = false;

    // check codec

    for( int i = 0; i < codecz.count(); i++) {

        if (format.codec() == codecz.at(i))

            match = true;

    }

    if (!match) failed = true;

    // check channel

    match = false;

    if (!failed) {

        for( int i = 0; i < channelz.count(); i++) {

            if (format.channels() == channelz.at(i)) {

                match = true;

                break;

            }

        }

    }

    if (!match) failed = true;

    // check frequency

    match = false;

    if (!failed) {

        for( int i = 0; i < freqz.count(); i++) {

            if (format.frequency() == freqz.at(i)) {

                match = true;

                break;

            }

        }

    }

    // check sample size

    match = false;

    if (!failed) {

        for( int i = 0; i < sizez.count(); i++) {

            if (format.sampleSize() == sizez.at(i)) {

                match = true;

                break;

            }

        }

    }

    // check byte order

    match = false;

    if (!failed) {

        for( int i = 0; i < byteOrderz.count(); i++) {

            if (format.byteOrder() == byteOrderz.at(i)) {

                match = true;

                break;

            }

        }

    }

    // check sample type

    match = false;

    if (!failed) {

        for( int i = 0; i < typez.count(); i++) {

            if (format.sampleType() == typez.at(i)) {

                match = true;

                break;

            }

        }

    }

    if(!failed) {

        // settings work

        return true;

    }

    return false;

}

void QAudioDeviceInfoInternal::updateLists()

{

    // redo all lists based on current settings

    bool base = false;

    bool match = false;

    DWORD fmt = NULL;

    QString tmp;

    if(device.compare(QLatin1String("default")) == 0)

        base = true;

    if(mode == QAudio::AudioOutput) {

        WAVEOUTCAPS woc;

	unsigned long iNumDevs,i;

	iNumDevs = waveOutGetNumDevs();

	for(i=0;i<iNumDevs;i++) {

	    if(waveOutGetDevCaps(i, &woc, sizeof(WAVEOUTCAPS))

	        == MMSYSERR_NOERROR) {

		tmp = QString((const QChar *)woc.szPname);

		if(tmp.compare(device) == 0) {

		    match = true;

		    fmt = woc.dwFormats;

		    break;

		}

		if(base) {

		    match = true;

		    fmt = woc.dwFormats;

		    break;

		}

	    }

	}

    } else {

        WAVEINCAPS woc;

	unsigned long iNumDevs,i;

	iNumDevs = waveInGetNumDevs();

	for(i=0;i<iNumDevs;i++) {

	    if(waveInGetDevCaps(i, &woc, sizeof(WAVEINCAPS))

	        == MMSYSERR_NOERROR) {

		tmp = QString((const QChar *)woc.szPname);

		if(tmp.compare(device) == 0) {

		    match = true;

		    fmt = woc.dwFormats;

		    break;

		}

		if(base) {

		    match = true;

		    fmt = woc.dwFormats;

		    break;

		}

	    }

	}

    }

    sizez.clear();

    freqz.clear();

    channelz.clear();

    byteOrderz.clear();

    typez.clear();

    codecz.clear();

    if(match) {

        if((fmt && WAVE_FORMAT_1M08)

           || (fmt && WAVE_FORMAT_1S08)

	   || (fmt && WAVE_FORMAT_2M08)

	   || (fmt && WAVE_FORMAT_2S08)

	   || (fmt && WAVE_FORMAT_4M08)

	   || (fmt && WAVE_FORMAT_4S08)

#ifndef Q_OS_WINCE

	   || (fmt && WAVE_FORMAT_48M08)

	   || (fmt && WAVE_FORMAT_48S08)

	   || (fmt && WAVE_FORMAT_96M08)

	   || (fmt && WAVE_FORMAT_96S08)

#endif

       ) {

            sizez.append(8);

	}

        if((fmt && WAVE_FORMAT_1M16)

           || (fmt && WAVE_FORMAT_1S16)

	   || (fmt && WAVE_FORMAT_2M16)

	   || (fmt && WAVE_FORMAT_2S16)

	   || (fmt && WAVE_FORMAT_4M16)

	   || (fmt && WAVE_FORMAT_4S16)

#ifndef Q_OS_WINCE

	   || (fmt && WAVE_FORMAT_48M16)

	   || (fmt && WAVE_FORMAT_48S16)

	   || (fmt && WAVE_FORMAT_96M16)

	   || (fmt && WAVE_FORMAT_96S16)

#endif

       ) {

            sizez.append(16);

	}

        if((fmt && WAVE_FORMAT_1M08)

           || (fmt && WAVE_FORMAT_1S08)

	   || (fmt && WAVE_FORMAT_1M16)

	   || (fmt && WAVE_FORMAT_1S16)) {

            freqz.append(11025);

	}

        if((fmt && WAVE_FORMAT_2M08)

           || (fmt && WAVE_FORMAT_2S08)

	   || (fmt && WAVE_FORMAT_2M16)

	   || (fmt && WAVE_FORMAT_2S16)) {

            freqz.append(22050);

	}

        if((fmt && WAVE_FORMAT_4M08)

           || (fmt && WAVE_FORMAT_4S08)

	   || (fmt && WAVE_FORMAT_4M16)

	   || (fmt && WAVE_FORMAT_4S16)) {

            freqz.append(44100);

	}

#ifndef Q_OS_WINCE

        if((fmt && WAVE_FORMAT_48M08)

           || (fmt && WAVE_FORMAT_48S08)

	   || (fmt && WAVE_FORMAT_48M16)

	   || (fmt && WAVE_FORMAT_48S16)) {

            freqz.append(48000);

	}

        if((fmt && WAVE_FORMAT_96M08)

           || (fmt && WAVE_FORMAT_96S08)

	   || (fmt && WAVE_FORMAT_96M16)

	   || (fmt && WAVE_FORMAT_96S16)) {

            freqz.append(96000);

        }

#endif

	channelz.append(1);

	channelz.append(2);

	byteOrderz.append(QAudioFormat::LittleEndian);

	typez.append(QAudioFormat::SignedInt);

	typez.append(QAudioFormat::UnSignedInt);

	codecz.append(QLatin1String("audio/pcm"));

    }

    if (freqz.count() > 0)

        freqz.prepend(8000);

}

QList<QByteArray> QAudioDeviceInfoInternal::availableDevices(QAudio::Mode mode)

{

    Q_UNUSED(mode)

    QList<QByteArray> devices;

    if(mode == QAudio::AudioOutput) {

        WAVEOUTCAPS woc;

	unsigned long iNumDevs,i;

	iNumDevs = waveOutGetNumDevs();

	for(i=0;i<iNumDevs;i++) {

	    if(waveOutGetDevCaps(i, &woc, sizeof(WAVEOUTCAPS))

	        == MMSYSERR_NOERROR) {

	        devices.append(QString((const QChar *)woc.szPname).toLocal8Bit().constData());

	    }

	}

    } else {

        WAVEINCAPS woc;

	unsigned long iNumDevs,i;

	iNumDevs = waveInGetNumDevs();

	for(i=0;i<iNumDevs;i++) {

	    if(waveInGetDevCaps(i, &woc, sizeof(WAVEINCAPS))

	        == MMSYSERR_NOERROR) {

	        devices.append(QString((const QChar *)woc.szPname).toLocal8Bit().constData());

	    }

	}

    }

    if(devices.count() > 0)

        devices.append("default");

    return devices;

}

QByteArray QAudioDeviceInfoInternal::defaultOutputDevice()

{

    return QByteArray("default");

}

QByteArray QAudioDeviceInfoInternal::defaultInputDevice()

{

    return QByteArray("default");

}

QT_END_NAMESPACE