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

#include "qsound.h"

#ifndef QT_NO_SOUND

#include "qhash.h"

#include "qsocketnotifier.h"

#include "qapplication.h"

#include "qsound_p.h"

QT_BEGIN_NAMESPACE

#ifndef QT_NO_NAS

QT_BEGIN_INCLUDE_NAMESPACE

#include <audio/audiolib.h>

#include <audio/soundlib.h>

QT_END_INCLUDE_NAMESPACE

static AuServer *nas=0;

static AuBool eventPred(AuServer *, AuEvent *e, AuPointer p)

{

    if (e && (e->type == AuEventTypeElementNotify)) {

        if (e->auelementnotify.flow == *((AuFlowID *)p))

            return true;

    }

    return false;

}

class QAuBucketNAS : public QAuBucket {

public:

    QAuBucketNAS(AuBucketID b, AuFlowID f = 0) : id(b), flow(f), stopped(true), numplaying(0) { }

    ~QAuBucketNAS()

    {

        if (nas) {

            AuSync(nas, false);

            AuDestroyBucket(nas, id, NULL);

            AuEvent ev;

            while (AuScanEvents(nas, AuEventsQueuedAfterFlush, true, eventPred, &flow, &ev))

                ;

        }

    }

    AuBucketID id;

    AuFlowID flow;

    bool     stopped;

    int      numplaying;

};

class QAuServerNAS : public QAuServer {

    Q_OBJECT

    QSocketNotifier* sn;

public:

    QAuServerNAS(QObject* parent);

    ~QAuServerNAS();

    void init(QSound*);

    void play(const QString& filename);

    void play(QSound*);

    void stop(QSound*);

    bool okay();

    void setDone(QSound*);

public slots:

    void dataReceived();

    void soundDestroyed(QObject *o);

private:

    QAuBucketNAS* bucket(QSound* s)

    {

        return (QAuBucketNAS*)QAuServer::bucket(s);

    }

};

QAuServerNAS::QAuServerNAS(QObject* parent) :

    QAuServer(parent)

{

    setObjectName(QLatin1String("Network Audio System"));

    nas = AuOpenServer(NULL, 0, NULL, 0, NULL, NULL);

    if (nas) {

        AuSetCloseDownMode(nas, AuCloseDownDestroy, NULL);

        // Ask Qt for async messages...

        sn=new QSocketNotifier(AuServerConnectionNumber(nas),

                QSocketNotifier::Read);

        QObject::connect(sn, SIGNAL(activated(int)),

                this, SLOT(dataReceived()));

    } else {

        sn = 0;

    }

}

QAuServerNAS::~QAuServerNAS()

{

    if (nas)

        AuCloseServer(nas);

    delete sn;

    nas = 0;

}

typedef QHash<void*,QAuServerNAS*> AuServerHash;

static AuServerHash *inprogress=0;

void QAuServerNAS::soundDestroyed(QObject *o)

{

    if (inprogress) {

        QSound *so = static_cast<QSound *>(o);

        while (inprogress->remove(so))

            ; // Loop while remove returns true

    }

}

void QAuServerNAS::play(const QString& filename)

{

    if (nas) {

        int iv=100;

        AuFixedPoint volume=AuFixedPointFromFraction(iv,100);

        AuSoundPlayFromFile(nas, filename.toLocal8Bit().constData(), AuNone, volume,

                            NULL, NULL, NULL, NULL, NULL, NULL);

        AuFlush(nas);

        dataReceived();

        AuFlush(nas);

        qApp->flush();

    }

}

static void callback(AuServer*, AuEventHandlerRec*, AuEvent* e, AuPointer p)

{

    if (inprogress->contains(p) && e) {

        if (e->type==AuEventTypeElementNotify &&

                    e->auelementnotify.kind==AuElementNotifyKindState) {

            if (e->auelementnotify.cur_state == AuStateStop) {

                AuServerHash::Iterator it = inprogress->find(p);

                if (it != inprogress->end())

                    (*it)->setDone((QSound*)p);

            }

        }

    }

}

void QAuServerNAS::setDone(QSound* s)

{

    if (nas) {

        decLoop(s);

        if (s->loopsRemaining() && !bucket(s)->stopped) {

            bucket(s)->stopped = true;

            play(s);

        } else {

            if (--(bucket(s)->numplaying) == 0)

                bucket(s)->stopped = true;

            inprogress->remove(s);

        }

    }

}

void QAuServerNAS::play(QSound* s)

{

    if (nas) {

        ++(bucket(s)->numplaying);

        if (!bucket(s)->stopped) {

            stop(s);

        }

        bucket(s)->stopped = false;

        if (!inprogress)

            inprogress = new AuServerHash;

        inprogress->insert(s,this);

        int iv=100;

        AuFixedPoint volume=AuFixedPointFromFraction(iv,100);

        QAuBucketNAS *b = bucket(s);

        AuSoundPlayFromBucket(nas, b->id, AuNone, volume,

                              callback, s, 0, &b->flow, NULL, NULL, NULL);

        AuFlush(nas);

        dataReceived();

        AuFlush(nas);

        qApp->flush();

    }

}

void QAuServerNAS::stop(QSound* s)

{

    if (nas && !bucket(s)->stopped) {

        bucket(s)->stopped = true;

        AuStopFlow(nas, bucket(s)->flow, NULL);

        AuFlush(nas);

        dataReceived();

        AuFlush(nas);

        qApp->flush();

    }

}

void QAuServerNAS::init(QSound* s)

{

    connect(s, SIGNAL(destroyed(QObject*)),

            this, SLOT(soundDestroyed(QObject*)));

    if (nas) {

        AuBucketID b_id =

            AuSoundCreateBucketFromFile(nas, s->fileName().toLocal8Bit().constData(),

                                        0 /*AuAccessAllMasks*/, NULL, NULL);

        setBucket(s, new QAuBucketNAS(b_id));

    }

}

bool QAuServerNAS::okay()

{

    return !!nas;

}

void QAuServerNAS::dataReceived()

{

    AuHandleEvents(nas);

}

QT_BEGIN_INCLUDE_NAMESPACE

#include "qsound_x11.moc"

QT_END_INCLUDE_NAMESPACE

#endif

class QAuServerNull : public QAuServer

{

public:

    QAuServerNull(QObject* parent);

    void play(const QString&) { }

    void play(QSound*s) { while(decLoop(s) > 0) /* nothing */ ; }

    void stop(QSound*) { }

    bool okay() { return false; }

};

QAuServerNull::QAuServerNull(QObject* parent)

    : QAuServer(parent)

{

}

QAuServer* qt_new_audio_server()

{

#ifndef QT_NO_NAS

    QAuServer* s = new QAuServerNAS(qApp);

    if (s->okay())

        return s;

    else

        delete s;

#endif

    return new QAuServerNull(qApp);

}

QT_END_NAMESPACE

#endif // QT_NO_SOUND