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/*
   This is a set of macros and definitions intended to provide backward compatibility
   with the previous versions of OpenCV
*/

#ifndef _CVCOMPAT_H_
#define _CVCOMPAT_H_

#include <string.h>

#ifdef __cplusplus
    #define CV_UNREFERENCED(arg)
#else
    #define CV_UNREFERENCED(arg) arg
#endif

#define CvMatType int
#define CvDisMaskType int
#define CvMatArray CvMat

#define CvThreshType int
#define CvAdaptiveThreshMethod int
#define CvCompareMethod int
#define CvFontFace int
#define CvPolyApproxMethod int
#define CvContoursMatchMethod int
#define CvContourTreesMatchMethod int
#define CvCoeffType int
#define CvRodriguesType int
#define CvElementShape int
#define CvMorphOp int
#define CvTemplMatchMethod int

#define  CV_MAT32F      CV_32FC1
#define  CV_MAT3x1_32F  CV_32FC1
#define  CV_MAT4x1_32F  CV_32FC1
#define  CV_MAT3x3_32F  CV_32FC1
#define  CV_MAT4x4_32F  CV_32FC1

#define  CV_MAT64D      CV_64FC1
#define  CV_MAT3x1_64D  CV_64FC1
#define  CV_MAT4x1_64D  CV_64FC1
#define  CV_MAT3x3_64D  CV_64FC1
#define  CV_MAT4x4_64D  CV_64FC1

#define  IPL_GAUSSIAN_5x5   7
#define  CvBox2D32f     CvBox2D

/* allocation/deallocation macros */
#define cvCreateImageData   cvCreateData
#define cvReleaseImageData  cvReleaseData
#define cvSetImageData      cvSetData
#define cvGetImageRawData   cvGetRawData

#define cvmAlloc            cvCreateData
#define cvmFree             cvReleaseData
#define cvmAllocArray       cvCreateData
#define cvmFreeArray        cvReleaseData

#define cvIntegralImage     cvIntegral
#define cvMatchContours     cvMatchShapes

CV_INLINE CvMat cvMatArray( int rows, int cols, int type,
                            int count, void* data CV_DEFAULT(0));
CV_INLINE CvMat cvMatArray( int rows, int cols, int type,
                            int count, void* data )
{
    return cvMat( rows*count, cols, type, data );    
}

#define cvUpdateMHIByTime  cvUpdateMotionHistory

#define cvAccMask cvAcc
#define cvSquareAccMask cvSquareAcc
#define cvMultiplyAccMask cvMultiplyAcc
#define cvRunningAvgMask(imgY, imgU, mask, alpha) cvRunningAvg(imgY, imgU, alpha, mask)

#define cvSetHistThresh  cvSetHistBinRanges
#define cvCalcHistMask(img, mask, hist, doNotClear) cvCalcHist(img, hist, doNotClear, mask)

CV_INLINE double cvMean( const CvArr* image, const CvArr* mask CV_DEFAULT(0));
CV_INLINE double cvMean( const CvArr* image, const CvArr* mask )
{
    CvScalar mean = cvAvg( image, mask );
    return mean.val[0];
}


CV_INLINE double  cvSumPixels( const CvArr* image );
CV_INLINE double  cvSumPixels( const CvArr* image )
{
    CvScalar scalar = cvSum( image );
    return scalar.val[0];
}

CV_INLINE void  cvMean_StdDev( const CvArr* image, double* mean, double* sdv,
                               const CvArr* mask CV_DEFAULT(0));
CV_INLINE void  cvMean_StdDev( const CvArr* image, double* mean,
                               double* sdv, const CvArr* mask )
{
    CvScalar _mean, _sdv;
    cvAvgSdv( image, &_mean, &_sdv, mask );

    if( mean )
        *mean = _mean.val[0];

    if( sdv )
        *sdv = _sdv.val[0];
}


CV_INLINE void cvmPerspectiveProject( const CvMat* mat, const CvArr* src,
                                      CvArr* dst );
CV_INLINE void cvmPerspectiveProject( const CvMat* mat, const CvArr* src,
                                      CvArr* dst )
{
    CvMat tsrc, tdst;

    cvReshape( src, &tsrc, 3, 0 );
    cvReshape( dst, &tdst, 3, 0 );

    cvPerspectiveTransform( &tsrc, &tdst, mat );
}


CV_INLINE void cvFillImage( CvArr* mat, double color );
CV_INLINE void cvFillImage( CvArr* mat, double color )
{
    CvPoint left_top = { 0, 0 }, right_bottom = { 0, 0 };

    cvGetRawData( mat, 0, 0, (CvSize*)&right_bottom );
    right_bottom.x--;
    right_bottom.y--;

    cvRectangle( mat, left_top, right_bottom,
                 cvColorToScalar( color, cvGetElemType(mat)),
                 CV_FILLED, 8, 0 );
}


#define cvCvtPixToPlane cvSplit
#define cvCvtPlaneToPix cvMerge

typedef struct CvRandState
{
    CvRNG     state;    /* RNG state (the current seed and carry)*/
    int       disttype; /* distribution type */
    CvScalar  param[2]; /* parameters of RNG */
}
CvRandState;


/* Changes RNG range while preserving RNG state */
CV_INLINE  void  cvRandSetRange( CvRandState* state, double param1,
                                 double param2, int index CV_DEFAULT(-1));
CV_INLINE  void  cvRandSetRange( CvRandState* state, double param1,
                                 double param2, int index )
{
    if( !state )
    {
        cvError( CV_StsNullPtr, "cvRandSetRange", "Null pointer to RNG state", "cvcompat.h", 0 );
        return;
    }

    if( (unsigned)(index + 1) > 4 )
    {
        cvError( CV_StsOutOfRange, "cvRandSetRange", "index is not in -1..3", "cvcompat.h", 0 );
        return;
    }

    if( index < 0 )
    {
        state->param[0].val[0] = state->param[0].val[1] =
        state->param[0].val[2] = state->param[0].val[3] = param1;
        state->param[1].val[0] = state->param[1].val[1] = 
        state->param[1].val[2] = state->param[1].val[3] = param2;
    }
    else
    {
        state->param[0].val[index] = param1;
        state->param[1].val[index] = param2;
    }
}


CV_INLINE  void  cvRandInit( CvRandState* state, double param1,
                             double param2, int seed,
                             int disttype CV_DEFAULT(CV_RAND_UNI));
CV_INLINE  void  cvRandInit( CvRandState* state, double param1,
                             double param2, int seed, int disttype )
{
    if( !state )
    {
        cvError( CV_StsNullPtr, "cvRandInit", "Null pointer to RNG state", "cvcompat.h", 0 );
        return;
    }

    if( disttype != CV_RAND_UNI && disttype != CV_RAND_NORMAL )
    {
        cvError( CV_StsBadFlag, "cvRandInit", "Unknown distribution type", "cvcompat.h", 0 );
        return;
    }

    state->state = (uint64)(seed ? seed : -1);
    state->disttype = disttype;
    cvRandSetRange( state, param1, param2, -1 );
}


/* Fills array with random numbers */
CV_INLINE void cvRand( CvRandState* state, CvArr* arr );
CV_INLINE void cvRand( CvRandState* state, CvArr* arr )
{
    if( !state )
    {
        cvError( CV_StsNullPtr, "cvRand", "Null pointer to RNG state", "cvcompat.h", 0 );
        return;
    }
    cvRandArr( &state->state, arr, state->disttype, state->param[0], state->param[1] ); 
}

#define cvRandNext( _state ) cvRandInt( &(_state)->state )

CV_INLINE void cvbRand( CvRandState* state, float* dst, int len );
CV_INLINE void cvbRand( CvRandState* state, float* dst, int len )
{
    CvMat mat = cvMat( 1, len, CV_32F, (void*)dst );
    cvRand( state, &mat );
}


CV_INLINE void  cvbCartToPolar( const float* y, const float* x,
                                float* magnitude, float* angle, int len );
CV_INLINE void  cvbCartToPolar( const float* y, const float* x,
                                float* magnitude, float* angle, int len )
{
    CvMat mx = cvMat( 1, len, CV_32F, (void*)x );
    CvMat my = mx;
    CvMat mm = mx;
    CvMat ma = mx;

    my.data.fl = (float*)y;
    mm.data.fl = (float*)magnitude;
    ma.data.fl = (float*)angle;

    cvCartToPolar( &mx, &my, &mm, angle ? &ma : NULL, 1 );
}


CV_INLINE void  cvbFastArctan( const float* y, const float* x,
                               float* angle, int len );
CV_INLINE void  cvbFastArctan( const float* y, const float* x,
                               float* angle, int len )
{
    CvMat mx = cvMat( 1, len, CV_32F, (void*)x );
    CvMat my = mx;
    CvMat ma = mx;