1 files changed, 92 insertions, 0 deletions
diff --git a/src/spatialaudio/qaudioengine_p.h b/src/spatialaudio/qaudioengine_p.h
new file mode 100644
index 000000000..59eaa4540
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+++ b/src/spatialaudio/qaudioengine_p.h
@@ -0,0 +1,92 @@
+// Copyright (C) 2022 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-3.0-only
+
+#ifndef QAUDIOENGINE_P_H
+#define QAUDIOENGINE_P_H
+
+//
+//  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 <qtspatialaudioglobal_p.h>
+#include <qaudioengine.h>
+#include <qaudiodevice.h>
+#include <qaudiodecoder.h>
+#include <qthread.h>
+#include <qmutex.h>
+#include <qurl.h>
+#include <qaudiobuffer.h>
+#include <qvector3d.h>
+#include <qfile.h>
+
+namespace vraudio {
+class ResonanceAudio;
+}
+
+QT_BEGIN_NAMESPACE
+
+class QSpatialSound;
+class QAmbientSound;
+class QAudioSink;
+class QAudioOutputStream;
+class QAmbisonicDecoder;
+class QAudioDecoder;
+class QAudioRoom;
+class QAudioListener;
+
+class QAudioEnginePrivate
+{
+public:
+    static QAudioEnginePrivate *get(QAudioEngine *engine) { return engine ? engine->d : nullptr; }
+
+    static constexpr int bufferSize = 128;
+
+    QAudioEnginePrivate();
+    ~QAudioEnginePrivate();
+    vraudio::ResonanceAudio *resonanceAudio = nullptr;
+    int sampleRate = 44100;
+    float masterVolume = 1.;
+    QAudioEngine::OutputMode outputMode = QAudioEngine::Surround;
+    bool roomEffectsEnabled = true;
+
+    // Resonance Audio uses meters internally, while Qt Quick 3D and our API uses cm by default.
+    // To make things independent from the scale setting, we store all distances in meters internally
+    // and convert in the setters and getters.
+    float distanceScale = 0.01f;
+
+    QMutex mutex;
+    QAudioDevice device;
+    QAtomicInteger<bool> paused = false;
+
+    QThread audioThread;
+    std::unique_ptr<QAudioOutputStream> outputStream;
+
+    QAudioListener *listener = nullptr;
+    QList<QSpatialSound *> sources;
+    QList<QAmbientSound *> stereoSources;
+    QList<QAudioRoom *> rooms;
+    mutable bool listenerPositionDirty = true;
+    QAudioRoom *currentRoom = nullptr;
+
+    void addSpatialSound(QSpatialSound *sound);
+    void removeSpatialSound(QSpatialSound *sound);
+    void addStereoSound(QAmbientSound *sound);
+    void removeStereoSound(QAmbientSound *sound);
+
+    void addRoom(QAudioRoom *room);
+    void removeRoom(QAudioRoom *room);
+    void updateRooms();
+
+    QVector3D listenerPosition() const;
+};
+
+QT_END_NAMESPACE
+
+#endif