3f56f1f9
 dmayerich
initial commit
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#include "fieldslice.h"
#include "dataTypes.h"
#include "cufft.h"
#include <iostream>
#include <stdlib.h>
using namespace std;
fieldslice::fieldslice(unsigned int x_size, unsigned int y_size)
{
//save the slice resolution
R[0] = x_size;
R[1] = x_size;
scalarField = true;
//init_gpu();
}
void fieldslice::toAngularSpectrum()
{
cufftHandle plan;
//create a CUFFT plan handle
if(cufftPlan2d(&plan, R[0], R[1], CUFFT_C2C) != CUFFT_SUCCESS)
{
cout<<"Error creating CUFFT plan for computing the angular spectrum."<<endl;
exit(1);
}
#ifdef PRECISION_SINGLE
if(cufftExecC2C(plan, (cufftComplex*)x_hat, (cufftComplex*)x_hat, CUFFT_FORWARD) != CUFFT_SUCCESS)
#elif defined PRECISION_DOUBLE
if(cufftExecZ2Z(plan, (cufftDoubleComplex*)x_hat, (cufftDoubleComplex*)x_hat, CUFFT_FORWARD) != CUFFT_SUCCESS)
#endif
{
cout<<"Error executing the CUFFT forward FFT to compute the angular spectrum."<<endl;
exit(1);
}
cufftDestroy(plan);
}
void fieldslice::fromAngularSpectrum()
{
cufftHandle plan;
//create a CUFFT plan handle
if(cufftPlan2d(&plan, R[0], R[1], CUFFT_C2C) != CUFFT_SUCCESS)
{
cout<<"Error creating CUFFT plan for computing the angular spectrum."<<endl;
exit(1);
}
#ifdef PRECISION_SINGLE
if(cufftExecC2C(plan, (cufftComplex*)x_hat, (cufftComplex*)x_hat, CUFFT_INVERSE) != CUFFT_SUCCESS)
#elif defined PRECISION_DOUBLE
if(cufftExecZ2Z(plan, (cufftDoubleComplex*)x_hat, (cufftDoubleComplex*)x_hat, CUFFT_INVERSE) != CUFFT_SUCCESS)
#endif
{
cout<<"Error executing the CUFFT forward FFT to compute the angular spectrum."<<endl;
exit(1);
}
//divide the field by the number of values in the field
ScaleField( 1.0 / (R[0] * R[1]));
cufftDestroy(plan);
}
fieldslice::fieldslice()
{
R[0] = R[1] = 0;
x_hat = y_hat = z_hat = NULL;
}
fieldslice::~fieldslice()
{
//kill_gpu();
}
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