Long live Qt 4.5!

1 files changed, 296 insertions, 0 deletions

diff --git a/src/gui/kernel/qsound_x11.cpp b/src/gui/kernel/qsound_x11.cpp
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index 0000000000..f2aeea8291
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+++ b/src/gui/kernel/qsound_x11.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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