text: /***********************************************************************************************************************
  *                                                                                                                      *
  * libscopeprotocols                                                                                                    *
  *                                                                                                                      *
  * Copyright (c) 2012-2022 Andrew D. Zonenberg and contributors                                                         *
  * All rights reserved.                                                                                                 *
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  * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the     *
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  *    * Redistributions of source code must retain the above copyright notice, this list of conditions, and the         *
  *      following disclaimer.                                                                                           *
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  *    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the       *
  *      following disclaimer in the documentation and/or other materials provided with the distribution.                *
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  *    * Neither the name of the author nor the names of any contributors may be used to endorse or promote products     *
  *      derived from this software without specific prior written permission.                                           *
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  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED   *
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  * THE AUTHORS BE HELD LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES        *
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR       *
  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
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  ***********************************************************************************************************************/
  
  #include "scopeprotocols.h"
  #include "EyeBitRateMeasurement.h"
  #include "EyePattern.h"
  
  using namespace std;
  
  ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  // Construction / destruction
  
  EyeBitRateMeasurement::EyeBitRateMeasurement(const string& color)
  	: Filter(color, CAT_MEASUREMENT)
  {
  	AddStream(Unit(Unit::UNIT_BITRATE), "data", Stream::STREAM_TYPE_ANALOG);
  
  	//Set up channels
  	CreateInput("Eye");
  
  	m_value = 0;
  }
  
  ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  // Factory methods
  
  bool EyeBitRateMeasurement::ValidateChannel(size_t i, StreamDescriptor stream)
  {
  	if(stream.m_channel == NULL)
  		return false;
  
  	if( (i == 0) && (stream.GetType() == Stream::STREAM_TYPE_EYE) )
  		return true;
  
  	return false;
  }
  
  ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  // Accessors
  
  string EyeBitRateMeasurement::GetProtocolName()
  {
  	return "Eye Bit Rate";
  }
  
  bool EyeBitRateMeasurement::IsScalarOutput()
  {
  	//single sample output
  	return true;
  }
  
  ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  // Actual decoder logic
  
  void EyeBitRateMeasurement::Refresh()
  {
  	if(!VerifyAllInputsOK(true))
  	{
  		SetData(NULL, 0);
  		return;
  	}
  
  	//Get the input data
  	auto din = dynamic_cast<EyeWaveform*>(GetInputWaveform(0));
  
  	//Create the output
  	auto cap = new AnalogWaveform;
  	cap->m_offsets.push_back(0);
  	cap->m_durations.push_back(2 * din->m_uiWidth);
  	m_value = FS_PER_SECOND / din->m_uiWidth;
  	cap->m_samples.push_back(m_value);
  
  	SetData(cap, 0);
  
  	//Copy start time etc from the input. Timestamps are in femtoseconds.
  	cap->m_timescale = 1;
  	cap->m_startTimestamp = din->m_startTimestamp;
  	cap->m_startFemtoseconds = din->m_startFemtoseconds;
  }
  