/*  This file is part of the KDE project.+
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+
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    Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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+
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    This library is free software: you can redistribute it and/or modify+
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    it under the terms of the GNU Lesser General Public License as published by+
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    the Free Software Foundation, either version 2.1 or 3 of the License.+
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+
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    This library is distributed in the hope that it will be useful,+
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    but WITHOUT ANY WARRANTY; without even the implied warranty of+
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the+
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    GNU Lesser General Public License for more details.+
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+
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    You should have received a copy of the GNU Lesser General Public License+
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    along with this library.  If not, see <http://www.gnu.org/licenses/>.+
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*/+
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+
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#include "audiodevice.h"+
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#include "audiograph.h"+
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#include <QtCore/QVector>+
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#include "backendheader.h"+
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+
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QT_BEGIN_NAMESPACE+
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+
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namespace Phonon+
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{+
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namespace QT7+
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{+
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+
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QList<AudioDeviceID> AudioDevice::devices(Scope scope)+
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{+
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    QList<AudioDeviceID> devices;+
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+
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    // Insert the default device explicit+
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    if (AudioDeviceID defdev = defaultDevice(scope))+
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        devices << defdev;+
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+
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    // How many input/output devices are awailable:+
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    UInt32 deviceCount = 0;+
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	OSStatus err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, &deviceCount, 0);+
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    BACKEND_ASSERT3(err == noErr, "Could not get number of audio devices awailable.", FATAL_ERROR, devices)+
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+
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    // Get list of all devices:+
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    AudioDeviceID deviceArray[deviceCount];+
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    err = AudioHardwareGetProperty(kAudioHardwarePropertyDevices, &deviceCount, &deviceArray);+
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    BACKEND_ASSERT3(err == noErr, "Could not get audio devices list.", FATAL_ERROR, devices)+
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+
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    for (uint i=0; i<deviceCount; i++){+
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        if (!devices.contains(deviceArray[i])){+
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            // Check if the current device is input or output:+
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            UInt32 size;+
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	        err = AudioDeviceGetPropertyInfo(deviceArray[i], 0, scope == In, kAudioDevicePropertyStreams, &size, 0);+
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	        if (err == noErr && size > 0)+
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                devices << deviceArray[i];+
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        }+
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    }+
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    return devices;+
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}+
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+
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AudioDeviceID AudioDevice::defaultSystemDevice(Scope scope)+
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{+
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    ARGUMENT_UNSUPPORTED(scope, In, NORMAL_ERROR, 0)+
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    AudioDeviceID deviceID = 0;+
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    UInt32 size = sizeof(deviceID);+
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    OSStatus err = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultSystemOutputDevice, &size, &deviceID);+
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    BACKEND_ASSERT3(err == noErr, "Could not get default system audio device.", FATAL_ERROR, 0)+
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    return deviceID;+
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}+
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+
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AudioDeviceID AudioDevice::defaultDevice(Scope scope)+
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{+
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    ARGUMENT_UNSUPPORTED(scope, In, NORMAL_ERROR, 0)+
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    AudioDeviceID deviceID = 0;+
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    UInt32 size = sizeof(deviceID);+
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    OSStatus err = AudioHardwareGetProperty(kAudioHardwarePropertyDefaultOutputDevice, &size, &deviceID);+
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    BACKEND_ASSERT3(err == noErr, "Could not get default output audio device.", FATAL_ERROR, 0)+
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    return deviceID;+
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}+
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+
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AudioDeviceID AudioDevice::currentDevice(AudioUnit /*unit*/, Scope /*scope*/)+
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{+
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    return 0;+
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#if 0+
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+
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kAudioDevicePropertyDeviceUID+
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+
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    if (!m_audioUnit)+
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        return 0;+
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    AudioDeviceID deviceID = 0;+
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    UInt32 size = sizeof(deviceID);+
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	OSStatus err = AudioUnitGetProperty(m_audioUnit, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &size, &deviceID);+
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    BACKEND_ASSERT3(err == noErr, "Could not get current audio device.", FATAL_ERROR, 0)+
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    return deviceID;+
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#endif+
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}+
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+
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bool AudioDevice::setDevice(AudioUnit unit, AudioDeviceID deviceID, Scope scope)+
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{+
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    ARGUMENT_UNSUPPORTED(scope, In, NORMAL_ERROR, false)+
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    UInt32 size = sizeof(deviceID);+
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	OSStatus err = AudioUnitSetProperty(unit, kAudioOutputUnitProperty_CurrentDevice, kAudioUnitScope_Global, 0, &deviceID, size);+
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    if (err != noErr)+
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        return false;+
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    return true;+
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}+
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+
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QString AudioDevice::deviceSourceNameElseDeviceName(AudioDeviceID deviceID)+
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{+
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    QString name = deviceSourceName(deviceID);+
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    if (name.isEmpty())+
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        name = deviceName(deviceID);+
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    return name;+
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}+
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+
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QString AudioDevice::deviceNameElseDeviceSourceName(AudioDeviceID deviceID)+
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{+
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    QString name = deviceName(deviceID);+
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    if (name.isEmpty())+
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        name = deviceSourceName(deviceID);+
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    return name;+
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}+
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+
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QString AudioDevice::deviceName(AudioDeviceID deviceID)+
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{+
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    if (!deviceID)+
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        return QString();+
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    CFStringRef cfString = 0;+
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    UInt32 size = sizeof(cfString);+
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	OSStatus err = AudioDeviceGetProperty(deviceID, 0, 0, kAudioDevicePropertyDeviceNameCFString, &size, &cfString);+
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	if (err != noErr)+
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        return QString();+
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    QString name = PhononCFString::toQString(cfString);+
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    CFRelease(cfString);+
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    return name;+
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}+
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+
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QString AudioDevice::deviceSourceName(AudioDeviceID deviceID)+
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{+
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    if (!deviceID)+
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        return QString();+
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    UInt32 dataSource = 0;+
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    UInt32 size = sizeof(dataSource);+
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    OSStatus err = AudioDeviceGetProperty(deviceID, 0, 0, kAudioDevicePropertyDataSource, &size, &dataSource);+
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	if (err != noErr)+
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        return QString();+
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+
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    CFStringRef cfName = 0;+
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    AudioValueTranslation translation = {&dataSource, sizeof(dataSource), &cfName, sizeof(cfName)};+
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    size = sizeof(translation);+
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    err = AudioDeviceGetProperty(deviceID, 0, 0, kAudioDevicePropertyDataSourceNameForIDCFString, &size, &translation);+
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	if (err != noErr){+
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        return QString();+
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    }+
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	QString name = PhononCFString::toQString(cfName);+
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    CFRelease(cfName);+
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    return name;+
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}+
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+
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QString AudioDevice::deviceUID(AudioDeviceID deviceID)+
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{+
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    if (!deviceID)+
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        return QString();+
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        +
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    CFStringRef cfString = 0;+
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    UInt32 size = sizeof(cfString);+
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	OSStatus err = AudioDeviceGetProperty(deviceID, 0, 0, kAudioDevicePropertyDeviceUID, &size, &cfString);+
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	if (err != noErr)+
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        return QString();+
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    QString uid = PhononCFString::toQString(cfString);+
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    CFRelease(cfString);+
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    return uid;+
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}+
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+
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}} //namespace Phonon::QT7+
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+
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QT_END_NAMESPACE+
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