jsweeper/src/jack.h

#ifndef JACK_H
#define JACK_H

#include <jack/jack.h>
#include <jack/ringbuffer.h>

#ifndef HAVE_RENAME
typedef int (*JackPortRenameCallback)(jack_port_id_t port, const char* old_name, const char* new_name, void *arg);
int jack_set_port_rename_callback (jack_client_t *, JackPortRenameCallback rename_callback, void *arg) __attribute__((__weak__));
#endif

enum PortEventType
{
	PET_REGISTER,
	PET_UNREGISTER,
	PET_CONNECT,
	PET_DISCONNECT,
	PET_RENAME
};

struct PortEvent
{
	PortEventType type;
	jack_port_id_t port_id_a;
	jack_port_id_t port_id_b;
};

class JackDriver
{
private:
	bool               m_connected;
	jack_client_t     *m_client;
	jack_ringbuffer_t *m_buffer;

	static void ShutdownCallbackHandler(void *arg)
	{
		((JackDriver *)arg)->ShutdownCallback();
	}

	static void PortRegistrationCallbackHandler(jack_port_id_t port_id, int reg, void *arg)
	{
		((JackDriver *)arg)->PortRegistrationCallback(port_id, reg);
	}

	static void PortConnectCallbackHandler(jack_port_id_t port_id_a, jack_port_id_t port_id_b, int connect, void *arg)
	{
		((JackDriver *)arg)->PortConnectCallback(port_id_a, port_id_b, connect);
	}

	static int PortRenameCallbackHandler(jack_port_id_t port_id, const char * /*old_name*/, const char * /*new_name*/, void *arg)
	{
		return ((JackDriver *)arg)->PortRenameCallback(port_id);
	}

	void ShutdownCallback();
	void PortRegistrationCallback(jack_port_id_t port, int reg);
	void PortConnectCallback(jack_port_id_t a, jack_port_id_t b, int connect);
	int PortRenameCallback(jack_port_id_t port_id);

public:
	JackDriver();
	~JackDriver();

	void Connect();
	void Disconnect();

	bool IsConnected() const
	{
		return m_connected;
	}

	bool ProcessEvents();

	void Connect(jack_port_t *a, jack_port_t *b);
	void Disconnect(jack_port_t *a, jack_port_t *b);

	jack_client_t *GetClient() { return m_client; }
};

extern JackDriver jack;

#endif // JACK_H