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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QPULSEAUDIO_CONTEXTMANAGER_P_H
#define QPULSEAUDIO_CONTEXTMANAGER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qmap.h>
#include <QtCore/qbytearray.h>
#include <QtCore/qreadwritelock.h>
#include <pulse/pulseaudio.h>
#include "qpulsehelpers_p.h"
#include <qaudioformat.h>
QT_BEGIN_NAMESPACE
class QPulseAudioContextManager : public QObject
{
Q_OBJECT
using PAContextHandle = QPulseAudioInternal::PAContextHandle;
using PAOperationHandle = QPulseAudioInternal::PAOperationHandle;
public:
explicit QPulseAudioContextManager(QObject *parent = nullptr);
~QPulseAudioContextManager() override;
static QPulseAudioContextManager *instance();
pa_threaded_mainloop *mainloop() { return m_mainLoop.get(); }
pa_context *context() { return m_context.get(); }
void lock()
{
if (m_mainLoop)
pa_threaded_mainloop_lock(m_mainLoop.get());
}
void unlock()
{
if (m_mainLoop)
pa_threaded_mainloop_unlock(m_mainLoop.get());
}
void wait(const PAOperationHandle &op)
{
while (m_mainLoop && pa_operation_get_state(op.get()) == PA_OPERATION_RUNNING)
pa_threaded_mainloop_wait(m_mainLoop.get());
}
bool waitForAsyncOperation(pa_operation *op);
bool isInMainLoop() const
{
return m_mainLoop && pa_threaded_mainloop_in_thread(m_mainLoop.get());
}
QList<QAudioDevice> availableDevices(QAudioDevice::Mode mode) const;
QByteArray defaultDevice(QAudioDevice::Mode mode) const;
pa_context_state_t getContextState();
bool contextIsGood();
QString serverName();
Q_SIGNALS:
void audioInputsChanged();
void audioOutputsChanged();
private Q_SLOTS:
void prepare();
void onContextFailed();
private:
static void serverInfoCallback(pa_context *context, const pa_server_info *info, void *userdata);
static void sinkInfoCallback(pa_context *context, const pa_sink_info *info, int isLast,
void *userdata);
static void sourceInfoCallback(pa_context *context, const pa_source_info *info, int isLast,
void *userdata);
static void eventCallback(pa_context *context, pa_subscription_event_type_t t, uint32_t index,
void *userdata);
static void contextStateCallbackInit(pa_context *context, void *userdata);
static void contextStateCallback(pa_context *c, void *userdata);
void updateDevices();
void release();
QMap<int, QAudioDevice> m_sinks;
QMap<int, QAudioDevice> m_sources;
QByteArray m_defaultSink;
QByteArray m_defaultSource;
mutable QReadWriteLock m_sinkLock;
mutable QReadWriteLock m_sourceLock;
mutable QReadWriteLock m_serverLock;
pa_mainloop_api *m_mainLoopApi{};
std::unique_ptr<pa_threaded_mainloop, QPulseAudioInternal::PaMainLoopDeleter> m_mainLoop;
PAContextHandle m_context;
bool m_prepared{};
QString m_serverName;
};
QT_END_NAMESPACE
#endif // QPULSEAUDIO_CONTEXTMANAGER_P_H
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