service/pipewire: add pipewire module

src/services/pipewire/link.hpp

@@ -0,0 +1,99 @@
+#pragma once
+
+#include <pipewire/link.h>
+#include <pipewire/type.h>
+#include <qcontainerfwd.h>
+#include <qdebug.h>
+#include <qobject.h>
+#include <qqmlintegration.h>
+#include <qtmetamacros.h>
+#include <qtypes.h>
+
+#include "registry.hpp"
+
+namespace qs::service::pipewire {
+
+class PwLinkState: public QObject {
+	Q_OBJECT;
+	QML_ELEMENT;
+	QML_SINGLETON;
+
+public:
+	enum Enum {
+		Error = PW_LINK_STATE_ERROR,
+		Unlinked = PW_LINK_STATE_UNLINKED,
+		Init = PW_LINK_STATE_INIT,
+		Negotiating = PW_LINK_STATE_NEGOTIATING,
+		Allocating = PW_LINK_STATE_ALLOCATING,
+		Paused = PW_LINK_STATE_PAUSED,
+		Active = PW_LINK_STATE_ACTIVE,
+	};
+	Q_ENUM(Enum);
+
+	Q_INVOKABLE static QString toString(PwLinkState::Enum value);
+};
+
+constexpr const char TYPE_INTERFACE_Link[] = PW_TYPE_INTERFACE_Link;             // NOLINT
+class PwLink: public PwBindable<pw_link, TYPE_INTERFACE_Link, PW_VERSION_LINK> { // NOLINT
+	Q_OBJECT;
+
+public:
+	void bindHooks() override;
+	void unbindHooks() override;
+	void initProps(const spa_dict* props) override;
+
+	[[nodiscard]] quint32 outputNode() const;
+	[[nodiscard]] quint32 inputNode() const;
+	[[nodiscard]] PwLinkState::Enum state() const;
+
+signals:
+	void stateChanged();
+
+private:
+	static const pw_link_events EVENTS;
+	static void onInfo(void* data, const struct pw_link_info* info);
+
+	void setOutputNode(quint32 outputNode);
+	void setInputNode(quint32 inputNode);
+	void setState(pw_link_state state);
+
+	SpaHook listener;
+
+	quint32 mOutputNode = 0;
+	quint32 mInputNode = 0;
+	pw_link_state mState = PW_LINK_STATE_UNLINKED;
+};
+
+QDebug operator<<(QDebug debug, const PwLink* link);
+
+class PwLinkGroup: public QObject {
+	Q_OBJECT;
+
+public:
+	explicit PwLinkGroup(PwLink* firstLink, QObject* parent = nullptr);
+
+	void ref();
+	void unref();
+
+	[[nodiscard]] quint32 outputNode() const;
+	[[nodiscard]] quint32 inputNode() const;
+	[[nodiscard]] PwLinkState::Enum state() const;
+
+	QHash<quint32, PwLink*> links;
+
+	bool tryAddLink(PwLink* link);
+
+signals:
+	void stateChanged();
+
+private slots:
+	void onLinkRemoved(QObject* object);
+
+private:
+	quint32 mOutputNode = 0;
+	quint32 mInputNode = 0;
+	PwLink* trackedLink = nullptr;
+	quint32 refcount = 0;
+};
+
+} // namespace qs::service::pipewire