// This file is a part of Framsticks SDK.  http://www.framsticks.com/
// Copyright (C) 1999-2015  Maciej Komosinski and Szymon Ulatowski.
// See LICENSE.txt for details.

#include "neuroimpl-channels.h"
#include <common/nonstd_stl.h>

void NI_Channelize::go()
{
setChannelCount(getInputCount());
for(int i=0;i<getInputCount();i++)
	setState(getWeightedInputState(i),i);
}

void NI_ChMux::go()
{
int c=getInputChannelCount(1);
if (c<2) {setState(getWeightedInputState(1)); return;}
double s=getWeightedInputState(0);
s=(max(-1.0,min(1.0,s))+1.0)/2.0; // 0..1
int i1;
i1=(int)(s*(c-1)); i1=max(0,min(i1,c-2));
double sw=1.0/(c-1);
double s1=sw*i1;
double w1=fabs((s-s1)/sw);
double w2=1.0-w1;
double is1=getWeightedInputState(1,i1);
double is2=getWeightedInputState(1,i1+1);
setState(is1*w2 + is2*w1);
}

void NI_ChSel::go()
{
setState(getWeightedInputState(0,ch));
}