1/*M///////////////////////////////////////////////////////////////////////////////////////
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6//  If you do not agree to this license, do not download, install,
7//  copy or use the software.
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10//                        Intel License Agreement
11//                For Open Source Computer Vision Library
12//
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40//M*/
41
42#include "precomp.hpp"
43
44CV_IMPL CvSeq* cvPointSeqFromMat( int seq_kind, const CvArr* arr,
45                                  CvContour* contour_header, CvSeqBlock* block )
46{
47    CV_Assert( arr != 0 && contour_header != 0 && block != 0 );
48
49    int eltype;
50    CvMat hdr;
51    CvMat* mat = (CvMat*)arr;
52
53    if( !CV_IS_MAT( mat ))
54        CV_Error( CV_StsBadArg, "Input array is not a valid matrix" );
55
56    if( CV_MAT_CN(mat->type) == 1 && mat->width == 2 )
57        mat = cvReshape(mat, &hdr, 2);
58
59    eltype = CV_MAT_TYPE( mat->type );
60    if( eltype != CV_32SC2 && eltype != CV_32FC2 )
61        CV_Error( CV_StsUnsupportedFormat,
62        "The matrix can not be converted to point sequence because of "
63        "inappropriate element type" );
64
65    if( (mat->width != 1 && mat->height != 1) || !CV_IS_MAT_CONT(mat->type))
66        CV_Error( CV_StsBadArg,
67        "The matrix converted to point sequence must be "
68        "1-dimensional and continuous" );
69
70    cvMakeSeqHeaderForArray(
71            (seq_kind & (CV_SEQ_KIND_MASK|CV_SEQ_FLAG_CLOSED)) | eltype,
72            sizeof(CvContour), CV_ELEM_SIZE(eltype), mat->data.ptr,
73            mat->width*mat->height, (CvSeq*)contour_header, block );
74
75    return (CvSeq*)contour_header;
76}
77
78CV_IMPL void
79cvCopyMakeBorder( const CvArr* srcarr, CvArr* dstarr, CvPoint offset,
80                  int borderType, CvScalar value )
81{
82    cv::Mat src = cv::cvarrToMat(srcarr), dst = cv::cvarrToMat(dstarr);
83    int left = offset.x, right = dst.cols - src.cols - left;
84    int top = offset.y, bottom = dst.rows - src.rows - top;
85
86    CV_Assert( dst.type() == src.type() );
87    cv::copyMakeBorder( src, dst, top, bottom, left, right, borderType, value );
88}
89
90/* End of file. */
91