clFFT.h

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//
// File:       clFFT.h
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#ifndef __CLFFT_H
#define __CLFFT_H

#ifdef KJB_HAVE_OPENCL
#include <gpu_cpp/gpu_opencl.h>

#ifdef __cplusplus
extern "C" {
#endif

#include <stdio.h>

// XForm type
typedef enum 
{
        clFFT_Forward   =       -1,
        clFFT_Inverse   =        1
        
}clFFT_Direction;

// XForm dimension
typedef enum
{
        clFFT_1D        = 0,
        clFFT_2D        = 1,
        clFFT_3D        = 3
        
}clFFT_Dimension;

// XForm Data type
typedef enum
{
        clFFT_SplitComplexFormat       = 0,
        clFFT_InterleavedComplexFormat = 1
}clFFT_DataFormat;

typedef struct
{
        unsigned int x;
        unsigned int y;
        unsigned int z;
}clFFT_Dim3;    
        
typedef struct
{
        float *real;
        float *imag;
} clFFT_SplitComplex;

typedef struct
{
        float real;
        float imag;
}clFFT_Complex;

typedef void* clFFT_Plan;       

clFFT_Plan clFFT_CreatePlan( cl_context context, clFFT_Dim3 n, clFFT_Dimension dim, clFFT_DataFormat dataFormat, cl_int *error_code );

void clFFT_DestroyPlan( clFFT_Plan plan );

cl_int clFFT_ExecuteInterleaved( cl_command_queue queue, clFFT_Plan plan, cl_int batchSize, clFFT_Direction dir, 
                                                                 cl_mem data_in, cl_mem data_out,
                                                                 cl_int num_events, cl_event *event_list, cl_event *event );

cl_int clFFT_ExecutePlannar( cl_command_queue queue, clFFT_Plan plan, cl_int batchSize, clFFT_Direction dir, 
                                                         cl_mem data_in_real, cl_mem data_in_imag, cl_mem data_out_real, cl_mem data_out_imag,
                                                         cl_int num_events, cl_event *event_list, cl_event *event );

cl_int clFFT_1DTwistInterleaved(clFFT_Plan Plan, cl_command_queue queue, cl_mem array, 
                                                        size_t numRows, size_t numCols, size_t startRow, size_t rowsToProcess, clFFT_Direction dir);
        

cl_int clFFT_1DTwistPlannar(clFFT_Plan Plan, cl_command_queue queue, cl_mem array_real, cl_mem array_imag, 
                                                size_t numRows, size_t numCols, size_t startRow, size_t rowsToProcess, clFFT_Direction dir);
        
void clFFT_DumpPlan( clFFT_Plan plan, FILE *file);      

#ifdef __cplusplus
}
#endif

#endif
#endif /* KJB_HAVE_OPENCL */