ophDepthMap_GPU.h

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#ifndef __ophDepthMap_GPU_h
#define __ophDepthMap_GPU_h

#include "ophDepthMap.h"

#define __DEBUG_LOG_GPU_SPEC_

/* CUDA Library Include */
#include    <cuda_runtime_api.h>
#include    <cufft.h>
static void HandleError(cudaError_t err,
    const char *file,
    int line) {
    if (err != cudaSuccess) {
        printf("%s in %s at line %d\n", cudaGetErrorString(err),
            file, line);
        exit(EXIT_FAILURE);
    }
}
#define HANDLE_ERROR( err ) (HandleError( err, __FILE__, __LINE__ ))


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

typedef struct DMKernelConfig {
    int pn_X;       
    int pn_Y;       
    double pp_X; 
    double pp_Y; 

    double ss_X; 
    double ss_Y; 

    double k;         
    double lambda;

    DMKernelConfig(
        const ivec2& pixel_number,  
        const vec2& pixel_pitch,    
        const vec2& ss,             
        const Real& k,              
        const Real& lambda          
    )
    {
        // Output Image Size
        this->pn_X = pixel_number[_X];
        this->pn_Y = pixel_number[_Y];

        // Pixel pitch at eyepiece lens plane (by simple magnification) ==> SLM pitch
        this->pp_X = pixel_pitch[_X];
        this->pp_Y = pixel_pitch[_Y];

        // Length (Width) of complex field at eyepiece plane (by simple magnification)
        this->ss_X = ss[_X];
        this->ss_Y = ss[_Y];

        // Wave Number
        this->k = k;

        this->lambda = lambda;
    }
} DMKernelConfig;


extern "C"
{
    //void cudaFFT(CUstream_st* stream, int nx, int ny, cufftDoubleComplex* in_filed, cufftDoubleComplex* output_field, int direction);

    void cudaDepthHoloKernel(CUstream_st* stream, int nx, int ny, cufftDoubleComplex* u_o_gpu_, unsigned char* img_src_gpu, unsigned char* dimg_src_gpu, Real* depth_index_gpu,
        int dtr, cuDoubleComplex rand_phase_val, cuDoubleComplex carrier_phase_delay, int flag_change_depth_quan, unsigned int default_depth_quan, const unsigned int& mode);

    void cudaPropagation_AngularSpKernel(
        const int& nBlocks, const int& nThreads, CUstream_st* stream_, cufftDoubleComplex* input_d, cufftDoubleComplex* u_complex,
        const DMKernelConfig* cuda_config, Real propagation_dist);

    //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);

    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);

}



#endif