ophGen.cpp File Reference

#include "ophGen.h"
#include "sys.h"
#include "function.h"
#include <cuda_runtime_api.h>
#include <cufft.h>
#include <omp.h>
#include <iostream>
#include <sstream>
#include <algorithm>
#include "ImgControl.h"
#include "tinyxml2.h"
#include "PLYparser.h"

Include dependency graph for ophGen.cpp:

Go to the source code of this file.

Functions
void	cudaFFT (CUstream_st *stream, int nx, int ny, cufftDoubleComplex *in_filed, cufftDoubleComplex *output_field, int direction, bool bNormailized=false)
	Convert data from the spatial domain to the frequency domain using 2D FFT on GPU. More...
void	cudaCropFringe (CUstream_st *stream, int nx, int ny, cufftDoubleComplex *in_field, cufftDoubleComplex *out_field, int cropx1, int cropx2, int cropy1, int cropy2)
	Crop input data according to x, y coordinates on GPU. More...
void	cudaGetFringe (CUstream_st *stream, int pnx, int pny, cufftDoubleComplex *in_field, cufftDoubleComplex *out_field, int sig_locationx, int sig_locationy, Real ssx, Real ssy, Real ppx, Real ppy, Real PI)
	Encode the CGH according to a signal location parameter on the GPU. More...

Function Documentation

cudaCropFringe()

void cudaCropFringe	(	CUstream_st *	stream,
		int	nx,
		int	ny,
		cufftDoubleComplex *	in_field,
		cufftDoubleComplex *	out_field,
		int	cropx1,
		int	cropx2,
		int	cropy1,
		int	cropy2
	)

Crop input data according to x, y coordinates on GPU.

call CUDA Kernel - cropFringe.

Parameters

stream	: CUDA Stream
nx	: the number of column of the input data
ny	: the number of row of the input data
in_field	: input complex data variable
output_field	: output complex data variable
cropx1	: the start x-coordinate to crop.
cropx2	: the end x-coordinate to crop.
cropy1	: the start y-coordinate to crop.
cropy2	: the end y-coordinate to crop.

See also

encoding_GPU

cudaFFT()

void cudaFFT	(	CUstream_st *	stream,
		int	nx,
		int	ny,
		cufftDoubleComplex *	in_filed,
		cufftDoubleComplex *	output_field,
		int	direction,
		bool	bNormailized = false
	)

Convert data from the spatial domain to the frequency domain using 2D FFT on GPU.

call CUDA Kernel - fftShift and CUFFT Library.

Parameters

stream	: CUDA Stream
nx	: the number of column of the input data
ny	: the number of row of the input data
in_field	: input complex data variable
output_field	: output complex data variable
direction	: If direction == -1, forward FFT, if type == 1, inverse FFT.
bNomarlized	: If bNomarlized == true, normalize the result after FFT.

See also

propagation_AngularSpectrum_GPU, encoding_GPU

cudaGetFringe()

void cudaGetFringe	(	CUstream_st *	stream,
		int	pnx,
		int	pny,
		cufftDoubleComplex *	in_field,
		cufftDoubleComplex *	out_field,
		int	sig_locationx,
		int	sig_locationy,
		Real	ssx,
		Real	ssy,
		Real	ppx,
		Real	ppy,
		Real	PI
	)

Encode the CGH according to a signal location parameter on the GPU.

The variable, ((Real*)p_hologram) has the final result.

Parameters

stream	: CUDA Stream
pnx	: the number of column of the input data
pny	: the number of row of the input data
in_field	: input data
out_field	: output data
sig_locationx	: signal location of x-axis, left or right half
sig_locationy	: signal location of y-axis, upper or lower half
ssx	: pnx * ppx
ssy	: pny * ppy
ppx	: pixel pitch of x-axis
ppy	: pixel pitch of y-axis
PI	: Pi

See also

encoding_GPU