#ifndef SDLSOUNDDRIVER_HH

#define SDLSOUNDDRIVER_HH

#include "SoundDriver.hh"

#include "SDLSurfacePtr.hh"

#include "MemBuffer.hh"

#include <SDL.h>

namespace openmsx {

class Reactor;

class SDLSoundDriver final : public SoundDriver

{

public:

	SDLSoundDriver(Reactor& reactor, unsigned wantedFreq, unsigned samples);

	SDLSoundDriver(const SDLSoundDriver&) = delete;

	SDLSoundDriver(SDLSoundDriver&&) = delete;

	SDLSoundDriver& operator=(const SDLSoundDriver&) = delete;

	SDLSoundDriver& operator=(SDLSoundDriver&&) = delete;

	~SDLSoundDriver() override;

	void mute() override;

	void unmute() override;

	[[nodiscard]] unsigned getFrequency() const override;

	[[nodiscard]] unsigned getSamples() const override;

	void uploadBuffer(std::span<const StereoFloat> buffer) override;

private:

	void reInit();

	[[nodiscard]] unsigned getBufferFilled() const;

	[[nodiscard]] unsigned getBufferFree() const;

	static void audioCallbackHelper(void* userdata, uint8_t* strm, int len);

	void audioCallback(std::span<StereoFloat> stream);

private:

	Reactor& reactor;

	SDL_AudioDeviceID deviceID;

	MemBuffer<StereoFloat> mixBuffer;

	unsigned frequency;

	unsigned fragmentSize;

	unsigned readIdx = 0, writeIdx = 0;

	bool muted = true;

	[[no_unique_address]] SDLSubSystemInitializer<SDL_INIT_AUDIO> audioInitializer;

};

} // namespace openmsx

#endif