/* -*- Mode: c++ -*- */
/***************************************************************************
 *            coreaudio.h
 *
 *  Sat Oct 21 18:27:52 CEST 2017
 *  Copyright 2017 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of DrumGizmo.
 *
 *  DrumGizmo is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU Lesser General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  DrumGizmo is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with DrumGizmo; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#pragma once

#include <memory>

#include <audiotypes.h>

#include "audiooutputengine.h"

struct AudioTimeStamp;
struct AudioBufferList;

class CoreAudioOutputEngine
	: public AudioOutputEngine
{
public:
	CoreAudioOutputEngine();
	~CoreAudioOutputEngine();

	// From AudioOutputEngine:
	bool init(const Channels& chan) override;
	void setParm(const std::string& parm, const std::string& value) override;
	bool start() override;
	void stop() override;
	void pre(std::size_t nsamples) override;
	void run(int ch, sample_t* samples, std::size_t nsamples) override;
	void post(std::size_t nsamples) override;
	size_t getSamplerate() const override;
	std::size_t getBufferSize() const override;
	bool isFreewheeling() const override;

private:
	std::unique_ptr<struct RAII> raii;

	static int render(void *user_data,
	                  std::uint32_t *action_flags,
	                  const AudioTimeStamp *timestamp,
	                  std::uint32_t bus_number,
	                  std::uint32_t number_frames,
	                  AudioBufferList *io_data);
};