using System;
using System.Collections.Generic;
using OpenCVForUnity.CoreModule;

#if !UNITY_WSA_10_0
using OpenCVForUnity.DnnModule;
#endif

namespace OpenCVForUnity.UtilsModule {
    public class Converters {

        public static Mat vector_Point_to_Mat(List<Point> pts) {
            return vector_Point_to_Mat(pts, CvType.CV_32S);
        }

        public static Mat vector_Point2f_to_Mat(List<Point> pts) {
            return vector_Point_to_Mat(pts, CvType.CV_32F);
        }

        public static Mat vector_Point2d_to_Mat(List<Point> pts) {
            return vector_Point_to_Mat(pts, CvType.CV_64F);
        }

        public static Mat vector_Point_to_Mat(List<Point> pts, int typeDepth) {
            Mat res;
            int count = (pts != null) ? pts.Count : 0;
            if (count > 0) {
                switch (typeDepth) {
                    case CvType.CV_32S: {
                            res = new Mat(count, 1, CvType.CV_32SC2);
                            int[] buff = new int[count * 2];
                            for (int i = 0; i < count; i++) {
                                Point p = pts[i];
                                buff[i * 2] = (int)p.x;
                                buff[i * 2 + 1] = (int)p.y;
                            }
                            res.put(0, 0, buff);

                        }
                        break;

                    case CvType.CV_32F: {
                            res = new Mat(count, 1, CvType.CV_32FC2);
                            float[] buff = new float[count * 2];
                            for (int i = 0; i < count; i++) {
                                Point p = pts[i];
                                buff[i * 2] = (float)p.x;
                                buff[i * 2 + 1] = (float)p.y;
                            }
                            res.put(0, 0, buff);
                        }
                        break;

                    case CvType.CV_64F: {
                            res = new Mat(count, 1, CvType.CV_64FC2);
                            double[] buff = new double[count * 2];
                            for (int i = 0; i < count; i++) {
                                Point p = pts[i];
                                buff[i * 2] = p.x;
                                buff[i * 2 + 1] = p.y;
                            }
                            res.put(0, 0, buff);
                        }
                        break;

                    default:
                        throw new CvException("'typeDepth' can be CV_32S, CV_32F or CV_64F");
                }
            } else {
                res = new Mat();
            }
            return res;
        }

        public static Mat vector_Point3i_to_Mat(List<Point3> pts) {
            return vector_Point3_to_Mat(pts, CvType.CV_32S);
        }

        public static Mat vector_Point3f_to_Mat(List<Point3> pts) {
            return vector_Point3_to_Mat(pts, CvType.CV_32F);
        }

        public static Mat vector_Point3d_to_Mat(List<Point3> pts) {
            return vector_Point3_to_Mat(pts, CvType.CV_64F);
        }

        public static Mat vector_Point3_to_Mat(List<Point3> pts, int typeDepth) {
            Mat res;
            int count = (pts != null) ? pts.Count : 0;
            if (count > 0) {
                switch (typeDepth) {
                    case CvType.CV_32S: {
                            res = new Mat(count, 1, CvType.CV_32SC3);
                            int[] buff = new int[count * 3];
                            for (int i = 0; i < count; i++) {
                                Point3 p = pts[i];
                                buff[i * 3] = (int)p.x;
                                buff[i * 3 + 1] = (int)p.y;
                                buff[i * 3 + 2] = (int)p.z;
                            }
                            res.put(0, 0, buff);
                        }
                        break;

                    case CvType.CV_32F: {
                            res = new Mat(count, 1, CvType.CV_32FC3);
                            float[] buff = new float[count * 3];
                            for (int i = 0; i < count; i++) {
                                Point3 p = pts[i];
                                buff[i * 3] = (float)p.x;
                                buff[i * 3 + 1] = (float)p.y;
                                buff[i * 3 + 2] = (float)p.z;
                            }
                            res.put(0, 0, buff);
                        }
                        break;

                    case CvType.CV_64F: {
                            res = new Mat(count, 1, CvType.CV_64FC3);
                            double[] buff = new double[count * 3];
                            for (int i = 0; i < count; i++) {
                                Point3 p = pts[i];
                                buff[i * 3] = p.x;
                                buff[i * 3 + 1] = p.y;
                                buff[i * 3 + 2] = p.z;
                            }
                            res.put(0, 0, buff);
                        }
                        break;

                    default:
                        throw new CvException("'typeDepth' can be CV_32S, CV_32F or CV_64F");
                }
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_Point2f(Mat m, List<Point> pts) {
            if (m != null)
                m.ThrowIfDisposed();

            Mat_to_vector_Point(m, pts);
        }

        public static void Mat_to_vector_Point2d(Mat m, List<Point> pts) {
            if (m != null)
                m.ThrowIfDisposed();

            Mat_to_vector_Point(m, pts);
        }

        public static void Mat_to_vector_Point(Mat m, List<Point> pts) {
            if (m != null)
                m.ThrowIfDisposed();

            if (pts == null)
                throw new CvException("Output List can't be null");
            int count = m.rows();
            int type = m.type();
            if (m.cols() != 1)
                throw new CvException("Input Mat should have one column\n" + m);

            pts.Clear();
            if (type == CvType.CV_32SC2) {
                int[] buff = new int[2 * count];
                m.get(0, 0, buff);
                for (int i = 0; i < count; i++) {
                    pts.Add(new Point(buff[i * 2], buff[i * 2 + 1]));
                }
            } else if (type == CvType.CV_32FC2) {
                float[] buff = new float[2 * count];
                m.get(0, 0, buff);
                for (int i = 0; i < count; i++) {
                    pts.Add(new Point(buff[i * 2], buff[i * 2 + 1]));
                }
            } else if (type == CvType.CV_64FC2) {
                double[] buff = new double[2 * count];
                m.get(0, 0, buff);
                for (int i = 0; i < count; i++) {
                    pts.Add(new Point(buff[i * 2], buff[i * 2 + 1]));
                }
            } else {
                throw new CvException(
                    "Input Mat should be of CV_32SC2, CV_32FC2 or CV_64FC2 type\n" + m);
            }
        }

        public static void Mat_to_vector_Point3i(Mat m, List<Point3> pts) {
            if (m != null)
                m.ThrowIfDisposed();

            Mat_to_vector_Point3(m, pts);
        }

        public static void Mat_to_vector_Point3f(Mat m, List<Point3> pts) {
            if (m != null)
                m.ThrowIfDisposed();

            Mat_to_vector_Point3(m, pts);
        }

        public static void Mat_to_vector_Point3d(Mat m, List<Point3> pts) {
            if (m != null)
                m.ThrowIfDisposed();

            Mat_to_vector_Point3(m, pts);
        }

        public static void Mat_to_vector_Point3(Mat m, List<Point3> pts) {
            if (m != null)
                m.ThrowIfDisposed();

            if (pts == null)
                throw new CvException("Output List can't be null");
            int count = m.rows();
            int type = m.type();
            if (m.cols() != 1)
                throw new CvException("Input Mat should have one column\n" + m);

            pts.Clear();
            if (type == CvType.CV_32SC3) {
                int[] buff = new int[3 * count];
                m.get(0, 0, buff);
                for (int i = 0; i < count; i++) {
                    pts.Add(new Point3(buff[i * 3], buff[i * 3 + 1], buff[i * 3 + 2]));
                }
            } else if (type == CvType.CV_32FC3) {
                float[] buff = new float[3 * count];
                m.get(0, 0, buff);
                for (int i = 0; i < count; i++) {
                    pts.Add(new Point3(buff[i * 3], buff[i * 3 + 1], buff[i * 3 + 2]));
                }
            } else if (type == CvType.CV_64FC3) {
                double[] buff = new double[3 * count];
                m.get(0, 0, buff);
                for (int i = 0; i < count; i++) {
                    pts.Add(new Point3(buff[i * 3], buff[i * 3 + 1], buff[i * 3 + 2]));
                }
            } else {
                throw new CvException(
                    "Input Mat should be of CV_32SC3, CV_32FC3 or CV_64FC3 type\n" + m);
            }
        }

        public static Mat vector_Mat_to_Mat(List<Mat> mats) {
            Mat res;
            int count = (mats != null) ? mats.Count : 0;
            if (count > 0) {
                res = new Mat(count, 1, CvType.CV_32SC2);
                int[] buff = new int[count * 2];
                for (int i = 0; i < count; i++) {
                    long addr = mats[i].nativeObj.ToInt64();//TODO:@check
                    buff[i * 2] = (int)(addr >> 32);
                    buff[i * 2 + 1] = (int)(addr & 0xffffffff);
                }
                res.put(0, 0, buff);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_Mat(Mat m, List<Mat> mats) {
            if (m != null)
                m.ThrowIfDisposed();

            if (mats == null)
                throw new CvException("mats == null");
            int count = m.rows();
            if (CvType.CV_32SC2 != m.type() || m.cols() != 1)
                throw new CvException(
                    "CvType.CV_32SC2 != m.type() ||  m.cols()!=1\n" + m);

            mats.Clear();
            int[] buff = new int[count * 2];
            m.get(0, 0, buff);
            for (int i = 0; i < count; i++) {
                long addr = (((long)buff[i * 2]) << 32) | (((long)buff[i * 2 + 1]) & 0xffffffffL);
                //          mats.add(new Mat(addr));
                mats.Add(new Mat(new IntPtr(addr)));//TODO:@check

            }
        }

        public static Mat vector_float_to_Mat(List<float> fs) {
            Mat res;
            int count = (fs != null) ? fs.Count : 0;
            if (count > 0) {
                res = new Mat(count, 1, CvType.CV_32FC1);
                float[] buff = new float[count];
                for (int i = 0; i < count; i++) {
                    float f = fs[i];
                    buff[i] = f;
                }
                res.put(0, 0, buff);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_float(Mat m, List<float> fs) {
            if (m != null)
                m.ThrowIfDisposed();

            if (fs == null)
                throw new CvException("fs == null");
            int count = m.rows();
            if (CvType.CV_32FC1 != m.type() || m.cols() != 1)
                throw new CvException(
                    "CvType.CV_32FC1 != m.type() ||  m.cols()!=1\n" + m);

            fs.Clear();
            float[] buff = new float[count];
            m.get(0, 0, buff);
            for (int i = 0; i < count; i++) {
                fs.Add(buff[i]);
            }
        }

        public static Mat vector_uchar_to_Mat(List<byte> bs) {
            Mat res;
            int count = (bs != null) ? bs.Count : 0;
            if (count > 0) {
                res = new Mat(count, 1, CvType.CV_8UC1);
                byte[] buff = new byte[count];
                for (int i = 0; i < count; i++) {
                    byte b = bs[i];
                    buff[i] = b;
                }
                res.put(0, 0, buff);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_uchar(Mat m, List<byte> us) {
            if (m != null)
                m.ThrowIfDisposed();

            if (us == null)
                throw new CvException("Output List can't be null");
            int count = m.rows();
            if (CvType.CV_8UC1 != m.type() || m.cols() != 1)
                throw new CvException(
                    "CvType.CV_8UC1 != m.type() ||  m.cols()!=1\n" + m);

            us.Clear();
            byte[] buff = new byte[count];
            m.get(0, 0, buff);
            for (int i = 0; i < count; i++) {
                us.Add(buff[i]);
            }
        }

        public static Mat vector_char_to_Mat(List<byte> bs) {
            Mat res;
            int count = (bs != null) ? bs.Count : 0;
            if (count > 0) {
                res = new Mat(count, 1, CvType.CV_8SC1);
                byte[] buff = new byte[count];
                for (int i = 0; i < count; i++) {
                    byte b = bs[i];
                    buff[i] = b;
                }
                res.put(0, 0, buff);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static Mat vector_int_to_Mat(List<int> _is) {
            Mat res;
            int count = (_is != null) ? _is.Count : 0;
            if (count > 0) {
                res = new Mat(count, 1, CvType.CV_32SC1);
                int[] buff = new int[count];
                for (int i = 0; i < count; i++) {
                    int v = _is[i];
                    buff[i] = v;
                }
                res.put(0, 0, buff);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_int(Mat m, List<int> _is) {
            if (m != null)
                m.ThrowIfDisposed();

            if (_is == null)
                throw new CvException("is == null");
            int count = m.rows();
            if (CvType.CV_32SC1 != m.type() || m.cols() != 1)
                throw new CvException(
                    "CvType.CV_32SC1 != m.type() ||  m.cols()!=1\n" + m);

            _is.Clear();
            int[] buff = new int[count];
            m.get(0, 0, buff);
            for (int i = 0; i < count; i++) {
                _is.Add(buff[i]);
            }
        }

        public static void Mat_to_vector_char(Mat m, List<byte> bs) {
            if (m != null)
                m.ThrowIfDisposed();

            if (bs == null)
                throw new CvException("Output List can't be null");
            int count = m.rows();
            if (CvType.CV_8SC1 != m.type() || m.cols() != 1)
                throw new CvException(
                    "CvType.CV_8SC1 != m.type() ||  m.cols()!=1\n" + m);

            bs.Clear();
            byte[] buff = new byte[count];
            m.get(0, 0, buff);
            for (int i = 0; i < count; i++) {
                bs.Add(buff[i]);
            }
        }

        public static Mat vector_Rect_to_Mat(List<Rect> rs) {
            Mat res;
            int count = (rs != null) ? rs.Count : 0;
            if (count > 0) {
                res = new Mat(count, 1, CvType.CV_32SC4);
                int[] buff = new int[4 * count];
                for (int i = 0; i < count; i++) {
                    Rect r = rs[i];
                    buff[4 * i] = r.x;
                    buff[4 * i + 1] = r.y;
                    buff[4 * i + 2] = r.width;
                    buff[4 * i + 3] = r.height;
                }
                res.put(0, 0, buff);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_Rect(Mat m, List<Rect> rs) {
            if (m != null)
                m.ThrowIfDisposed();

            if (rs == null)
                throw new CvException("rs == null");
            int count = m.rows();
            if (CvType.CV_32SC4 != m.type() || m.cols() != 1)
                throw new CvException(
                    "CvType.CV_32SC4 != m.type() ||  m.rows()!=1\n" + m);

            rs.Clear();
            int[] buff = new int[4 * count];
            m.get(0, 0, buff);
            for (int i = 0; i < count; i++) {
                rs.Add(new Rect(buff[4 * i], buff[4 * i + 1], buff[4 * i + 2], buff[4 * i + 3]));
            }
        }

        public static Mat vector_KeyPoint_to_Mat(List<KeyPoint> kps) {
            Mat res;
            int count = (kps != null) ? kps.Count : 0;
            if (count > 0) {
                res = new Mat(count, 1, CvType.CV_64FC(7));
                double[] buff = new double[count * 7];
                for (int i = 0; i < count; i++) {
                    KeyPoint kp = kps[i];
                    buff[7 * i] = kp.pt.x;
                    buff[7 * i + 1] = kp.pt.y;
                    buff[7 * i + 2] = kp.size;
                    buff[7 * i + 3] = kp.angle;
                    buff[7 * i + 4] = kp.response;
                    buff[7 * i + 5] = kp.octave;
                    buff[7 * i + 6] = kp.class_id;
                }
                res.put(0, 0, buff);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_KeyPoint(Mat m, List<KeyPoint> kps) {
            if (m != null)
                m.ThrowIfDisposed();

            if (kps == null)
                throw new CvException("Output List can't be null");
            int count = m.rows();
            if (CvType.CV_64FC(7) != m.type() || m.cols() != 1)
                throw new CvException(
                    "CvType.CV_64FC(7) != m.type() ||  m.cols()!=1\n" + m);

            kps.Clear();
            double[] buff = new double[7 * count];
            m.get(0, 0, buff);
            for (int i = 0; i < count; i++) {
                kps.Add(new KeyPoint((float)buff[7 * i], (float)buff[7 * i + 1], (float)buff[7 * i + 2], (float)buff[7 * i + 3],
                    (float)buff[7 * i + 4], (int)buff[7 * i + 5], (int)buff[7 * i + 6]));
            }
        }

        // vector_vector_Point
        public static Mat vector_vector_Point_to_Mat(List<MatOfPoint> pts, List<Mat> mats) {
            Mat res;
            int lCount = (pts != null) ? pts.Count : 0;
            if (lCount > 0) {
                foreach (MatOfPoint vpt in pts)
                    mats.Add(vpt);
                res = vector_Mat_to_Mat(mats);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_vector_Point(Mat m, List<MatOfPoint> pts) {
            if (m != null)
                m.ThrowIfDisposed();

            if (pts == null)
                throw new CvException("Output List can't be null");

            if (m == null)
                throw new CvException("Input Mat can't be null");

            List<Mat> mats = new List<Mat>(m.rows());
            Mat_to_vector_Mat(m, mats);
            foreach (Mat mi in mats) {
                MatOfPoint pt = new MatOfPoint(mi);
                pts.Add(pt);
                mi.release();
            }
            mats.Clear();
        }

        // vector_vector_Point2f
        public static void Mat_to_vector_vector_Point2f(Mat m, List<MatOfPoint2f> pts) {
            if (m != null)
                m.ThrowIfDisposed();

            if (pts == null)
                throw new CvException("Output List can't be null");

            if (m == null)
                throw new CvException("Input Mat can't be null");

            List<Mat> mats = new List<Mat>(m.rows());
            Mat_to_vector_Mat(m, mats);
            foreach (Mat mi in mats) {
                MatOfPoint2f pt = new MatOfPoint2f(mi);
                pts.Add(pt);
                mi.release();
            }
            mats.Clear();
        }

        // vector_vector_Point2f
        public static Mat vector_vector_Point2f_to_Mat(List<MatOfPoint2f> pts, List<Mat> mats) {
            Mat res;
            int lCount = (pts != null) ? pts.Count : 0;
            if (lCount > 0) {
                foreach (MatOfPoint2f vpt in pts)
                    mats.Add(vpt);
                res = vector_Mat_to_Mat(mats);
            } else {
                res = new Mat();
            }
            return res;
        }

        // vector_vector_Point3f
        public static void Mat_to_vector_vector_Point3f(Mat m, List<MatOfPoint3f> pts) {
            if (m != null)
                m.ThrowIfDisposed();

            if (pts == null)
                throw new CvException("Output List can't be null");

            if (m == null)
                throw new CvException("Input Mat can't be null");

            List<Mat> mats = new List<Mat>(m.rows());
            Mat_to_vector_Mat(m, mats);
            foreach (Mat mi in mats) {
                MatOfPoint3f pt = new MatOfPoint3f(mi);
                pts.Add(pt);
                mi.release();
            }
            mats.Clear();
        }

        // vector_vector_Point3f
        public static Mat vector_vector_Point3f_to_Mat(List<MatOfPoint3f> pts, List<Mat> mats) {
            Mat res;
            int lCount = (pts != null) ? pts.Count : 0;
            if (lCount > 0) {
                foreach (MatOfPoint3f vpt in pts)
                    mats.Add(vpt);
                res = vector_Mat_to_Mat(mats);
            } else {
                res = new Mat();
            }
            return res;
        }

        // vector_vector_KeyPoint
        public static Mat vector_vector_KeyPoint_to_Mat(List<MatOfKeyPoint> kps, List<Mat> mats) {
            Mat res;
            int lCount = (kps != null) ? kps.Count : 0;
            if (lCount > 0) {
                foreach (MatOfKeyPoint vkp in kps)
                    mats.Add(vkp);
                res = vector_Mat_to_Mat(mats);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_vector_KeyPoint(Mat m, List<MatOfKeyPoint> kps) {
            if (m != null)
                m.ThrowIfDisposed();

            if (kps == null)
                throw new CvException("Output List can't be null");

            if (m == null)
                throw new CvException("Input Mat can't be null");

            List<Mat> mats = new List<Mat>(m.rows());
            Mat_to_vector_Mat(m, mats);
            foreach (Mat mi in mats) {
                MatOfKeyPoint vkp = new MatOfKeyPoint(mi);
                kps.Add(vkp);
                mi.release();
            }
            mats.Clear();
        }

        public static Mat vector_double_to_Mat(List<double> ds) {
            Mat res;
            int count = (ds != null) ? ds.Count : 0;
            if (count > 0) {
                res = new Mat(count, 1, CvType.CV_64FC1);
                double[] buff = new double[count];
                for (int i = 0; i < count; i++) {
                    double v = ds[i];
                    buff[i] = v;
                }
                res.put(0, 0, buff);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_double(Mat m, List<double> ds) {
            if (m != null)
                m.ThrowIfDisposed();

            if (ds == null)
                throw new CvException("ds == null");
            int count = m.rows();
            if (CvType.CV_64FC1 != m.type() || m.cols() != 1)
                throw new CvException(
                    "CvType.CV_64FC1 != m.type() ||  m.cols()!=1\n" + m);

            ds.Clear();
            double[] buff = new double[count];
            m.get(0, 0, buff);
            for (int i = 0; i < count; i++) {
                ds.Add(buff[i]);
            }
        }

        public static Mat vector_DMatch_to_Mat(List<DMatch> matches) {
            Mat res;
            int count = (matches != null) ? matches.Count : 0;
            if (count > 0) {
                res = new Mat(count, 1, CvType.CV_64FC4);
                double[] buff = new double[count * 4];
                for (int i = 0; i < count; i++) {
                    DMatch m = matches[i];
                    buff[4 * i] = m.queryIdx;
                    buff[4 * i + 1] = m.trainIdx;
                    buff[4 * i + 2] = m.imgIdx;
                    buff[4 * i + 3] = m.distance;
                }
                res.put(0, 0, buff);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_DMatch(Mat m, List<DMatch> matches) {
            if (m != null)
                m.ThrowIfDisposed();

            if (matches == null)
                throw new CvException("Output List can't be null");
            int count = m.rows();
            if (CvType.CV_64FC4 != m.type() || m.cols() != 1)
                throw new CvException(
                    "CvType.CV_64FC4 != m.type() ||  m.cols()!=1\n" + m);

            matches.Clear();
            double[] buff = new double[4 * count];
            m.get(0, 0, buff);
            for (int i = 0; i < count; i++) {
                matches.Add(new DMatch((int)buff[4 * i], (int)buff[4 * i + 1], (int)buff[4 * i + 2], (float)buff[4 * i + 3]));
            }
        }

        // vector_vector_DMatch
        public static Mat vector_vector_DMatch_to_Mat(List<MatOfDMatch> lvdm, List<Mat> mats) {
            Mat res;
            int lCount = (lvdm != null) ? lvdm.Count : 0;
            if (lCount > 0) {
                foreach (MatOfDMatch vdm in lvdm)
                    mats.Add(vdm);
                res = vector_Mat_to_Mat(mats);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_vector_DMatch(Mat m, List<MatOfDMatch> lvdm) {
            if (m != null)
                m.ThrowIfDisposed();

            if (lvdm == null)
                throw new CvException("Output List can't be null");

            if (m == null)
                throw new CvException("Input Mat can't be null");

            List<Mat> mats = new List<Mat>(m.rows());
            Mat_to_vector_Mat(m, mats);
            lvdm.Clear();
            foreach (Mat mi in mats) {
                MatOfDMatch vdm = new MatOfDMatch(mi);
                lvdm.Add(vdm);
                mi.release();
            }
            mats.Clear();
        }

        // vector_vector_char
        public static Mat vector_vector_char_to_Mat(List<MatOfByte> lvb, List<Mat> mats) {
            Mat res;
            int lCount = (lvb != null) ? lvb.Count : 0;
            if (lCount > 0) {
                foreach (MatOfByte vb in lvb)
                    mats.Add(vb);
                res = vector_Mat_to_Mat(mats);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_vector_char(Mat m, List<List<byte>> llb) {
            if (m != null)
                m.ThrowIfDisposed();

            if (llb == null)
                throw new CvException("Output List can't be null");

            if (m == null)
                throw new CvException("Input Mat can't be null");

            List<Mat> mats = new List<Mat>(m.rows());
            Mat_to_vector_Mat(m, mats);
            foreach (Mat mi in mats) {
                List<byte> lb = new List<byte>();
                Mat_to_vector_char(mi, lb);
                llb.Add(lb);
                mi.release();
            }
            mats.Clear();
        }

        public static Mat vector_RotatedRect_to_Mat(List<RotatedRect> rs) {
            Mat res;
            int count = (rs != null) ? rs.Count : 0;
            if (count > 0) {
                res = new Mat(count, 1, CvType.CV_32FC(5));
                float[] buff = new float[5 * count];
                for (int i = 0; i < count; i++) {
                    RotatedRect r = rs[i];
                    buff[5 * i] = (float)r.center.x;
                    buff[5 * i + 1] = (float)r.center.y;
                    buff[5 * i + 2] = (float)r.size.width;
                    buff[5 * i + 3] = (float)r.size.height;
                    buff[5 * i + 4] = (float)r.angle;
                }
                res.put(0, 0, buff);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_RotatedRect(Mat m, List<RotatedRect> rs) {
            if (rs == null)
                throw new CvException("rs == null");
            int count = m.rows();
            if (CvType.CV_32FC(5) != m.type() || m.cols() != 1)
                throw new CvException(
                    "CvType.CV_32FC5 != m.type() ||  m.rows()!=1\n" + m);

            rs.Clear();
            float[] buff = new float[5 * count];
            m.get(0, 0, buff);
            for (int i = 0; i < count; i++) {
                rs.Add(new RotatedRect(new Point(buff[5 * i], buff[5 * i + 1]), new Size(buff[5 * i + 2], buff[5 * i + 3]), buff[5 * i + 4]));
            }
        }

        public static Mat vector_String_to_Mat(List<string> strings) {
            Mat res;

            int count = (strings != null) ? strings.Count : 0;
            if (count > 0) {
                System.Text.StringBuilder sb = new System.Text.StringBuilder();
                for (int i = 0; i < count; i++) {
                    if (i > 0)
                        sb.Append(",");
                    sb.Append(strings[i]);
                }

                //                byte[] buff = System.Text.Encoding.ASCII.GetBytes (sb.ToString ());
                byte[] buff = System.Text.Encoding.UTF8.GetBytes(sb.ToString());

                res = new Mat(1, buff.Length, CvType.CV_8SC1);
                res.put(0, 0, buff);
            } else {
                res = new Mat();
            }

            return res;
        }

        public static void Mat_to_vector_String(Mat m, List<string> strings) {
            if (m != null)
                m.ThrowIfDisposed();

            if (strings == null)
                throw new CvException("strings == null");
            int count = m.cols();
            if (CvType.CV_8SC1 != m.type() || m.rows() != 1)
                throw new CvException(
                    "CvType.CV_8SC1 != m.type() ||  m.rows()!=1\n" + m);

            strings.Clear();
            if (count > 0) {
                byte[] buff = new byte[count];
                m.get(0, 0, buff);
                //            string str = System.Text.Encoding.ASCII.GetString (buff);
                //                string str = System.Text.Encoding.UTF8.GetString (buff);
                //                strings.AddRange (System.Text.Encoding.ASCII.GetString (buff).Split (','));
                strings.AddRange(System.Text.Encoding.UTF8.GetString(buff).Split(','));
            }
        }

#if !UNITY_WSA_10_0
        public static Mat vector_MatShape_to_Mat(List<MatOfInt> matshapes) {

            Mat res;
            int count = (matshapes != null) ? matshapes.Count : 0;
            if (count > 0) {
                res = new Mat(count, 1, CvType.CV_32SC2);
                int[] buff = new int[count * 2];
                for (int i = 0; i < count; i++) {
                    long addr = matshapes[i].nativeObj.ToInt64();//TODO:@check
                    buff[i * 2] = (int)(addr >> 32);
                    buff[i * 2 + 1] = (int)(addr & 0xffffffff);
                }
                res.put(0, 0, buff);
            } else {
                res = new Mat();
            }
            return res;
        }

        public static void Mat_to_vector_Ptr_Layer(Mat m, List<Layer> ptr_layers) {
            if (m != null)
                m.ThrowIfDisposed();

            if (ptr_layers == null)
                throw new CvException("ptr_layers == null");
            int count = m.rows();
            if (CvType.CV_32SC2 != m.type() || m.cols() != 1)
                throw new CvException(
                    "CvType.CV_32SC2 != m.type() ||  m.cols()!=1\n" + m);

            ptr_layers.Clear();
            int[] buff = new int[count * 2];
            m.get(0, 0, buff);
            for (int i = 0; i < count; i++) {
                long addr = (((long)buff[i * 2]) << 32) | (((long)buff[i * 2 + 1]) & 0xffffffffL);
                ptr_layers.Add(new Layer(new IntPtr(addr)));//TODO:@check

            }
        }
#endif
    }
}