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* libscopeprotocols                                                                                                    *
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* Copyright (c) 2012-2023 Andrew D. Zonenberg and contributors                                                         *
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#include "../scopehal/scopehal.h"
#include "PeaksFilter.h"

using namespace std;

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Construction / destruction

PeaksFilter::PeaksFilter(const string& color)
	: PeakDetectionFilter(color, CAT_MATH)
{
	AddStream(Unit(Unit::UNIT_VOLTS), "waveform", Stream::STREAM_TYPE_ANALOG);

	CreateInput("din");
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Factory methods

bool PeaksFilter::ValidateChannel(size_t i, StreamDescriptor stream)
{
	if(stream.m_channel == NULL)
		return false;

	if(i >= 1)
		return false;

	if(stream.GetType() == Stream::STREAM_TYPE_ANALOG)
		return true;

	return false;
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Accessors

string PeaksFilter::GetProtocolName()
{
	return "Peaks";
}

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Actual decoder logic

void PeaksFilter::Refresh(vk::raii::CommandBuffer& /*cmdBuf*/, shared_ptr<QueueHandle> /*queue*/)
{
	//Output units track the input
	if(GetInput(0))
	{
		SetXAxisUnits(GetInput(0).GetXAxisUnits());
		SetYAxisUnits(GetInput(0).GetYAxisUnits(), 0);

		m_parameters[m_peakwindowname].SetUnit(GetInput(0).GetXAxisUnits());
	}

	//Make sure we've got valid inputs
	if(!VerifyAllInputsOK())
	{
		SetData(nullptr, 0);
		return;
	}

	auto din = GetInputWaveform(0);
	if(!din)
		return;

	auto sdin = dynamic_cast<SparseAnalogWaveform*>(din);
	auto udin = dynamic_cast<UniformAnalogWaveform*>(din);

	if(sdin)
	{
		FindPeaks(sdin);

		auto cap = SetupSparseOutputWaveform(sdin, 0, 0, 0);
		cap->m_offsets.CopyFrom(sdin->m_offsets);
		cap->m_durations.CopyFrom(sdin->m_durations);
		cap->m_samples.CopyFrom(sdin->m_samples);
	}
	else if(udin)
	{
		FindPeaks(udin);

		auto cap = SetupEmptyUniformAnalogOutputWaveform(udin, 0);
		cap->m_samples.CopyFrom(udin->m_samples);
	}

	//TODO: FWHM output or something
}
