#include "ophDepthMap.h"
#include <cuda_runtime.h>
#include <cufft.h>

Include dependency graph for ophDepthMap_GPU.h:

Macros
#define	__DEBUG_LOG_GPU_SPEC_

#define	HANDLE_ERROR(err) (HandleError( err, __FILE__, __LINE__ ))

#define	HANDLE_NULL(a)

Functions
void	cudaFFT (CUstream_st stream, int nx, int ny, cufftDoubleComplex in_filed, cufftDoubleComplex *output_field, int direction)
	Convert data from the spatial domain to the frequency domain using 2D FFT on GPU. More...

void	cudaDepthHoloKernel (CUstream_st stream, int pnx, int pny, cufftDoubleComplex u_o_gpu_, unsigned char img_src_gpu, unsigned char dimg_src_gpu, Real *depth_index_gpu, int dtr, Real rand_phase_val_a, Real rand_phase_val_b, Real carrier_phase_delay_a, Real carrier_phase_delay_b, int flag_change_depth_quan, unsigned int default_depth_quan)
	Find each depth plane of the input image and apply carrier phase delay to it on GPU. More...

void	cudaPropagation_AngularSpKernel (CUstream_st stream_, int pnx, int pny, cufftDoubleComplex input_d, cufftDoubleComplex *u_complex, Real ppx, Real ppy, Real ssx, Real ssy, Real lambda, Real params_k, Real propagation_dist)
	Angular spectrum propagation method for GPU implementation. More...

void	cudaChangeDepthQuanKernel (CUstream_st stream_, int pnx, int pny, Real depth_index_gpu, unsigned char *dimg_src_gpu, int dtr, Real d1, Real d2, Real params_num_of_depth, Real params_far_depthmap, Real params_near_depthmap)
	Quantize depth map on the GPU, only when the number of depth quantization is not the default value (i.e. change_depth_quantization == 1 ). More...

Variables
cufftDoubleComplex *	u_o_gpu_

cufftDoubleComplex *	u_complex_gpu_

cufftDoubleComplex *	k_temp_d_

cudaStream_t	stream_

Macro Definition Documentation

◆ __DEBUG_LOG_GPU_SPEC_

#define __DEBUG_LOG_GPU_SPEC_

Definition at line 58 of file ophDepthMap_GPU.h.

◆ HANDLE_ERROR

#define HANDLE_ERROR ( err ) (HandleError( err, __FILE__, __LINE__ ))

Definition at line 72 of file ophDepthMap_GPU.h.

◆ HANDLE_NULL

#define HANDLE_NULL ( a )

Value:

{if (a == NULL) { \
                            printf( "Host memory failed in %s at line %d\n", \
                                    __FILE__, __LINE__ ); \
                            exit( EXIT_FAILURE );}}

Definition at line 75 of file ophDepthMap_GPU.h.

Function Documentation

◆ cudaChangeDepthQuanKernel()

void cudaChangeDepthQuanKernel	(	CUstream_st *	stream_,
		int	pnx,
		int	pny,
		Real *	depth_index_gpu,
		unsigned char *	dimg_src_gpu,
		int	dtr,
		Real	d1,
		Real	d2,
		Real	params_num_of_depth,
		Real	params_far_depthmap,
		Real	params_near_depthmap
	)

Quantize depth map on the GPU, only when the number of depth quantization is not the default value (i.e. change_depth_quantization == 1 ).

Calculate the value of 'depth_index_gpu'.

Parameters

stream	: CUDA Stream
pnx	: the number of column of the input data
pny	: the number of row of the input data
depth_index_gpu	: output variable
dimg_src_gpu	: input depth map data
dtr	: the current working depth level
d1	: the starting physical point of each depth level
d2	: the ending physical point of each depth level
params_num_of_depth	: the number of depth level
params_far_depthmap	: NEAR_OF_DEPTH_MAP at config file
params_near_depthmap	: FAR_OF_DEPTH_MAP at config file

See also: change_depth_quan_GPU

◆ cudaDepthHoloKernel()

void cudaDepthHoloKernel	(	CUstream_st *	stream,
		int	pnx,
		int	pny,
		cufftDoubleComplex *	u_o_gpu_,
		unsigned char *	img_src_gpu,
		unsigned char *	dimg_src_gpu,
		Real *	depth_index_gpu,
		int	dtr,
		Real	rand_phase_val_a,
		Real	rand_phase_val_b,
		Real	carrier_phase_delay_a,
		Real	carrier_phase_delay_b,
		int	flag_change_depth_quan,
		unsigned int	default_depth_quan
	)

Find each depth plane of the input image and apply carrier phase delay to it on GPU.

call CUDA Kernel - depth_sources_kernel.

Parameters

stream	: CUDA Stream
nx	: the number of column of the input data
ny	: the number of row of the input data
u_o_gpu_	: output variable
img_src_gpu	: input image data
dimg_src_gpu	: input depth map data
depth_index_gpu	: input quantized depth map data
dtr	: current working depth level
rand_phase_val_a	: the Real part of the random phase value
rand_phase_val_b	: the imaginary part of the random phase value
carrier_phase_delay_a	: the Real part of the carrier phase delay
carrier_phase_delay_b	: the imaginary part of the carrier phase delay
flag_change_depth_quan	: if true, change the depth quantization from the default value.
default_depth_quan	: default value of the depth quantization - 256

See also: calc_Holo_GPU

◆ cudaFFT()

void cudaFFT	(	CUstream_st *	stream,
		int	nx,
		int	ny,
		cufftDoubleComplex *	in_filed,
		cufftDoubleComplex *	output_field,
		int	direction
	)

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

◆ cudaPropagation_AngularSpKernel()

void cudaPropagation_AngularSpKernel	(	CUstream_st *	stream_,
		int	pnx,
		int	pny,
		cufftDoubleComplex *	input_d,
		cufftDoubleComplex *	u_complex,
		Real	ppx,
		Real	ppy,
		Real	ssx,
		Real	ssy,
		Real	lambda,
		Real	params_k,
		Real	propagation_dist
	)

Angular spectrum propagation method for GPU implementation.

The propagation results of all depth levels are accumulated in the variable 'u_complex_gpu_'.

Parameters

stream	: CUDA Stream
pnx	: the number of column of the input data
pny	: the number of row of the input data
input_d	: input data
u_complex	: output data
ppx	: pixel pitch of x-axis
ppy	: pixel pitch of y-axis
ssx	: pnx * ppx
ssy	: pny * ppy
lambda	: wavelength
params_k	: 2 * PI / lambda
propagation_dist	: the distance from the object to the hologram plane

See also: propagation_AngularSpectrum_GPU

Variable Documentation

◆ k_temp_d_

cufftDoubleComplex* k_temp_d_

Definition at line 81 of file ophDepthMap_GPU.h.

◆ stream_

cudaStream_t stream_

Definition at line 83 of file ophDepthMap_GPU.h.

◆ u_complex_gpu_

cufftDoubleComplex* u_complex_gpu_

Definition at line 80 of file ophDepthMap_GPU.h.

◆ u_o_gpu_

cufftDoubleComplex* u_o_gpu_

Definition at line 79 of file ophDepthMap_GPU.h.

Macros

Functions

Variables

Macro Definition Documentation

◆ __DEBUG_LOG_GPU_SPEC_

◆ HANDLE_ERROR

◆ HANDLE_NULL

Function Documentation

◆ cudaChangeDepthQuanKernel()

◆ cudaDepthHoloKernel()

◆ cudaFFT()

◆ cudaPropagation_AngularSpKernel()

Variable Documentation

◆ k_temp_d_

◆ stream_

◆ u_complex_gpu_

◆ u_o_gpu_