#include "common.h"
#include "Halton.h"


float Halton2::_invBases[2];

template<int T> float Halton<T>::_invBases[T];
  
Halton<1> dummmyHalton1(true);
Halton<2> dummmyHalton2(true);
Halton<3> dummmyHalton3(true);
Halton<4> dummmyHalton4(true);
Halton<5> dummmyHalton5(true);
Halton<6> dummmyHalton6(true);


int HaltonSequence::sPregeneratedDim = 0;
int HaltonSequence::sPregeneratedNumber = 0;
float *HaltonSequence::sPregeneratedValues = NULL;


// special construtor for pregenerating static halton sequences
HaltonSequence::HaltonSequence(const int dim, const int number) 
{

	sPregeneratedDim = 0;
	sPregeneratedNumber = 0;
	sPregeneratedValues = new float[number*dim];

	float *p = sPregeneratedValues;

	for (int i=0; i < number; i++, p+=dim) 
	{
		GetNext(dim, p);
	}

	sPregeneratedDim = dim;
	sPregeneratedNumber = number;
}


void HaltonSequence::GetNext(const int dimensions, float *p)
{
	for (int i = 0; i < dimensions; ++ i)
		p[i] = (float)GetNumber(i + 1);

	GenerateNext();
}