#ifndef RESAMPLEHQ_HH

#define RESAMPLEHQ_HH

#include "ResampleAlgo.hh"

#include <cstdint>

#include <span>

#include <vector>

namespace openmsx {

class DynamicClock;

class ResampledSoundDevice;

template<unsigned CHANNELS>

class ResampleHQ final : public ResampleAlgo

{

public:

	static constexpr size_t TAB_LEN = 4096;

	static constexpr size_t HALF_TAB_LEN = TAB_LEN / 2;

public:

	ResampleHQ(ResampledSoundDevice& input, const DynamicClock& hostClock);

	ResampleHQ(const ResampleHQ&) = delete;

	ResampleHQ(ResampleHQ&&) = delete;

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

	ResampleHQ& operator=(ResampleHQ&&) = delete;

	~ResampleHQ() override;

	bool generateOutputImpl(float* dataOut, size_t num,

	                        EmuTime time) override;

private:

	void calcOutput(float pos, float* output);

	void prepareData(unsigned emuNum);

private:

	const DynamicClock& hostClock;

	const float ratio;

	unsigned bufStart;

	unsigned bufEnd;

	unsigned nonzeroSamples = 0;

	unsigned filterLen;

	std::vector<float> buffer;

	float* table;

	std::span<const int16_t, HALF_TAB_LEN> permute;

};

} // namespace openmsx

#endif