WaveletBlock1D.h

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//
//      $Id$
//

#ifndef _WaveletBlock1D_h_
#define _WaveletBlock1D_h_

#include <vapor/MyBase.h>
#include <vapor/EasyThreads.h>

#include "Lifting1D.h"


namespace VAPoR {

//
//
class WaveletBlock1D : public VetsUtil::MyBase {

public:

 //
 WaveletBlock1D(
    unsigned int bs,    // X,Y,Z coordinate block dimensions
    unsigned int n,     // # wavelet filter coefficents
    unsigned int ntilde // # wavelet lifting coefficients
 );
 virtual ~WaveletBlock1D();

 void   ForwardTransform(
    const float *src_blk_ptr,
    float *lambda_blk_ptr,
    float *gamma_blk_ptr
 );
 void   InverseTransform(
    const float *lambda_blk_ptr,
    const float *gamma_blk_ptr,
    float *dst_blk_ptr
 );

private:
 int    _bs;            // block dimensions in voxels
 int    _n;             // # filter coefficients
 int    _ntilde;        // # lifting coefficients

 Lifting1D <float>  *_lift; // lifting method wavelet transform
 float      *_liftbuf;  // scratch space for lifting method



 void   forward_transform1d_haar(
    const float *src_blk_ptr,
    float *lambda_blk_ptr,
    float *gamma_blk_ptr,
    int size
 );


 void   inverse_transform1d_haar(
    const float *lambda_blk_ptr,
    const float *gamma_blk_ptr,
    float *src_blk_ptr,
    int size
 );

};

};

#endif  //  _WaveletBlock1D_h_