/*
*	Copyright (C) 2010 Thorsten Liebig (Thorsten.Liebig@gmx.de)
*
*	This program is free software: you can redistribute it and/or modify
*	it under the terms of the GNU General Public License as published by
*	the Free Software Foundation, either version 3 of the License, or
*	(at your option) any later version.
*
*	This program is distributed in the hope that it will be useful,
*	but WITHOUT ANY WARRANTY; without even the implied warranty of
*	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*	GNU General Public License for more details.
*
*	You should have received a copy of the GNU General Public License
*	along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "array_ops.h"
#include <ostream>

FDTD_FLOAT** Create2DArray(const unsigned int* numLines)
{
	FDTD_FLOAT** array=NULL;
	unsigned int pos[3];
	array = new FDTD_FLOAT*[numLines[0]];
	for (pos[0]=0;pos[0]<numLines[0];++pos[0])
	{
		array[pos[0]] = new FDTD_FLOAT[numLines[1]];
		for (pos[1]=0;pos[1]<numLines[1];++pos[1])
		{
			array[pos[0]][pos[1]] = 0;
		}
	}
	return array;
}

void Delete2DArray(FDTD_FLOAT** array, const unsigned int* numLines)
{
	if (array==NULL) return;
	unsigned int pos[3];
	for (pos[0]=0;pos[0]<numLines[0];++pos[0])
	{
		delete[] array[pos[0]];
	}
	delete[] array;
}

FDTD_FLOAT*** Create3DArray(const unsigned int* numLines)
{
	FDTD_FLOAT*** array=NULL;
	unsigned int pos[3];
	array = new FDTD_FLOAT**[numLines[0]];
	for (pos[0]=0;pos[0]<numLines[0];++pos[0])
	{
		array[pos[0]] = new FDTD_FLOAT*[numLines[1]];
		for (pos[1]=0;pos[1]<numLines[1];++pos[1])
		{
			array[pos[0]][pos[1]] = new FDTD_FLOAT[numLines[2]];
			for (pos[2]=0;pos[2]<numLines[2];++pos[2])
			{
				array[pos[0]][pos[1]][pos[2]] = 0;
			}
		}
	}
	return array;
}

void Delete3DArray(FDTD_FLOAT*** array, const unsigned int* numLines)
{
	if (array==NULL) return;
	unsigned int pos[3];
	for (pos[0]=0;pos[0]<numLines[0];++pos[0])
	{
		for (pos[1]=0;pos[1]<numLines[1];++pos[1])
		{
			delete[] array[pos[0]][pos[1]];
		}
		delete[] array[pos[0]];
	}
	delete[] array;
}

FDTD_FLOAT**** Create_N_3DArray(const unsigned int* numLines)
{
	FDTD_FLOAT**** array=NULL;
	array = new FDTD_FLOAT***[3];
	for (int n=0;n<3;++n)
	{
		array[n]=Create3DArray(numLines);
	}
	return array;
}

void Delete_N_3DArray(FDTD_FLOAT**** array, const unsigned int* numLines)
{
	if (array==NULL) return;
	for (int n=0;n<3;++n)
	{
		Delete3DArray(array[n],numLines);
	}
	delete[] array;
}

void Dump_N_3DArray2File(ostream &file, FDTD_FLOAT**** array, unsigned int* numLines)
{
	unsigned int pos[3];
	for (pos[0]=0;pos[0]<numLines[0];++pos[0])
	{
		for (pos[1]=0;pos[1]<numLines[1];++pos[1])
		{
			for (pos[2]=0;pos[2]<numLines[2];++pos[2])
			{
				file << pos[0] << "\t" << pos[1] << "\t" << pos[2];
				for (int n=0;n<3;++n)
					file << "\t" << array[n][pos[0]][pos[1]][pos[2]];
				file << endl;
			}
		}
	}
}




void Delete3DArray_v4sf(f4vector*** array, const unsigned int* numLines)
{
	if (array==NULL) return;
	unsigned int pos[3];
	for (pos[0]=0;pos[0]<numLines[0];++pos[0])
	{
		for (pos[1]=0;pos[1]<numLines[1];++pos[1])
		{
			free( array[pos[0]][pos[1]] );
			//delete[] array[pos[0]][pos[1]];
		}
		free( array[pos[0]] );
		//delete[] array[pos[0]];
	}
	free( array );
	//delete[] array;
}

void Delete_N_3DArray_v4sf(f4vector**** array, const unsigned int* numLines)
{
	if (array==NULL) return;
	for (int n=0;n<3;++n)
	{
		Delete3DArray_v4sf(array[n],numLines);
	}
	free( array );
	//delete[] array;
}

//! \brief this function allocates a 3D array, which is aligned to 16 byte
f4vector*** Create3DArray_v4sf(const unsigned int* numLines)
{
	unsigned int numZ = ceil((double)numLines[2]/4.0);

	f4vector*** array=NULL;
	unsigned int pos[3];
	if (posix_memalign( (void**)&array, 16, sizeof(typeof(f4vector**))*numLines[0] )) {
		cerr << "cannot allocate aligned memory" << endl;
		exit(3);
	}
	//array = new f4vector**[numLines[0]];
	for (pos[0]=0;pos[0]<numLines[0];++pos[0])
	{
		if (posix_memalign( (void**)&array[pos[0]], 16, sizeof(typeof(f4vector*))*numLines[1] )) {
			cerr << "cannot allocate aligned memory" << endl;
			exit(3);
		}
		//array[pos[0]] = new f4vector*[numLines[1]];
		for (pos[1]=0;pos[1]<numLines[1];++pos[1])
		{
			if (posix_memalign( (void**)&array[pos[0]][pos[1]], 16, sizeof(typeof(f4vector))*numZ )) {
				cerr << "cannot allocate aligned memory" << endl;
				exit(3);
			}
			//array[pos[0]][pos[1]] = new f4vector[numZ];
			for (pos[2]=0;pos[2]<numZ;++pos[2])
			{
				array[pos[0]][pos[1]][pos[2]].f[0] = 0;
				array[pos[0]][pos[1]][pos[2]].f[1] = 0;
				array[pos[0]][pos[1]][pos[2]].f[2] = 0;
				array[pos[0]][pos[1]][pos[2]].f[3] = 0;
			}
		}
	}
	return array;
}
f4vector**** Create_N_3DArray_v4sf(const unsigned int* numLines)
{
	f4vector**** array=NULL;
	if (posix_memalign( (void**)&array, 16, sizeof(typeof(f4vector***))*3 )) {
		cerr << "cannot allocate aligned memory" << endl;
		exit(3);
	}
	//array = new f4vector***[3];
	for (int n=0;n<3;++n)
	{
		array[n]=Create3DArray_v4sf(numLines);
	}
	return array;
}