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* libscopeprotocols                                                                                                    *
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/**
	@file
	@author Andrew D. Zonenberg
	@brief Declaration of DeEmbedFilter
 */
#ifndef DeEmbedFilter_h
#define DeEmbedFilter_h

#include "FFTFilter.h"

class DeEmbedFilter : public Filter
{
public:
	DeEmbedFilter(const std::string& color);
	virtual ~DeEmbedFilter();

	virtual void Refresh(vk::raii::CommandBuffer& cmdBuf, std::shared_ptr<QueueHandle> queue) override;
	virtual DataLocation GetInputLocation() override;

	static std::string GetProtocolName();

	virtual bool ValidateChannel(size_t i, StreamDescriptor stream) override;

	PROTOCOL_DECODER_INITPROC(DeEmbedFilter)

	//Accessors for internal values only used by unit tests
	//TODO: refactor this into a friend class or something?
	size_t test_GetNumPoints()
	{ return m_cachedNumPoints; }

	size_t test_GetOutLen()
	{ return m_cachedOutLen; }

	AcceleratorBuffer<float>& test_GetCachedInputBuffer()
	{ return m_forwardInBuf; }

	AcceleratorBuffer<float>& test_GetResampledSines()
	{ return m_resampledSparamSines; }

	AcceleratorBuffer<float>& test_GetResampledCosines()
	{ return m_resampledSparamCosines; }

	size_t test_GetIstart()
	{ return m_cachedIstart; }

protected:
	virtual int64_t GetGroupDelay();
	void DoRefresh(bool invert, vk::raii::CommandBuffer& cmdBuf, std::shared_ptr<QueueHandle> queue);
	virtual void InterpolateSparameters(float bin_hz, bool invert, size_t nouts);

	std::string m_maxGainName;
	std::string m_groupDelayTruncModeName;
	std::string m_groupDelayTruncName;

	enum TruncationMode
	{
		TRUNC_AUTO,
		TRUNC_MANUAL
	};

	float m_cachedMaxGain;

	double m_cachedBinSize;
	AcceleratorBuffer<float> m_resampledSparamSines;
	AcceleratorBuffer<float> m_resampledSparamCosines;

	size_t m_cachedNumPoints;
	size_t m_cachedOutLen;
	size_t m_cachedIstart;

	AcceleratorBuffer<float> m_forwardInBuf;
	AcceleratorBuffer<float> m_forwardOutBuf;
	AcceleratorBuffer<float> m_reverseOutBuf;

	WaveformCacheKey m_magKey;
	WaveformCacheKey m_angleKey;

	SParameterVector m_cachedSparams;

	ComputePipeline m_rectangularComputePipeline;
	ComputePipeline m_deEmbedComputePipeline;
	ComputePipeline m_normalizeComputePipeline;
	std::unique_ptr<VulkanFFTPlan> m_vkForwardPlan;
	std::unique_ptr<VulkanFFTPlan> m_vkReversePlan;
};

#endif
