Issue in PathFromGlypth

[myailabs2020]

Below is the code snippet that we have written to generate path from glyph.
GlyphToPath works only for 95% of the characters, For some character, it throws array out of index at Line @46. Kindly let me know if you have better approach get a path from Glyph

` private string GlyphToPath(uint inGlyphIndex, bool inSingleStroke)
{
StringBuilder strPath = new StringBuilder();
string glyphPath = string.Empty;

        int flag;
        int flag2;
        int i = 0;
        int lSegmentCount;
        int total = 0;
        bool bClosed;
        FTVector pointFirst;
        FTVector point1;
        FTVector point2;
        FTVector point3;
        FTVector point4;
        string calculatedPath = string.Empty;
        this.FontFace.LoadGlyph(inGlyphIndex, LoadFlags.NoScale, LoadTarget.Normal);

        for (int c = 0; c < this.FontFace.Glyph.Outline.ContoursCount; c++)
        {
            lSegmentCount = 0;
            bClosed = false;
            total = this.FontFace.Glyph.Outline.Contours[c];

            pointFirst = this.FontFace.Glyph.Outline.Points[i];
            calculatedPath = "M " + pointFirst.X.Value + " " + (-pointFirst.Y.Value + this.FontFace.BBox.Top) + " ";
            strPath.Append(calculatedPath);
            for (; i < total;)
            {
                point1 = this.FontFace.Glyph.Outline.Points[i];
                flag = this.FontFace.Glyph.Outline.Tags[i];
                flag2 = this.FontFace.Glyph.Outline.Tags[i + 1];
                i++;
                if ((flag == 1) && (flag2 == 1))
                {
                    point2 = this.FontFace.Glyph.Outline.Points[i];
                    calculatedPath = "L " + point2.X.Value + " " + (-point2.Y.Value + this.FontFace.BBox.Top) + " ";
                    strPath.Append(calculatedPath);
                    lSegmentCount++;
                }
                else if (flag == 1)
                {
                    point2 = this.FontFace.Glyph.Outline.Points[i];
                    i++;
                    if (i > total)
                    {
                        point3 = new FTVector(0, 0);
                    }
                    else
                    {
                        point3 = this.FontFace.Glyph.Outline.Points[i]; // This is line @ 46 throws array out of index exception some character
                    }
                    i++;
                    if (i <= total)
                    {
                        point4 = this.FontFace.Glyph.Outline.Points[i];
                        calculatedPath = "C " + point2.X.Value + " " + (-point2.Y.Value + this.FontFace.BBox.Top) + " " + point3.X.Value + " " + (-point3.Y.Value + this.FontFace.BBox.Top) + " " + point4.X.Value + " " + (-point4.Y.Value + this.FontFace.BBox.Top) + " ";
                        strPath.Append(calculatedPath);
                        lSegmentCount++;
                    }
                    else
                    {
                        calculatedPath = "C " + point2.X.Value + " " + (-point2.Y.Value + this.FontFace.BBox.Top) + " " + point3.X.Value + " " + (-point3.Y.Value + this.FontFace.BBox.Top) + " " + pointFirst.X.Value + " " + (-pointFirst.Y.Value + this.FontFace.BBox.Top) + " ";
                        strPath.Append(calculatedPath);
                        lSegmentCount++;
                        bClosed = true;
                    }
                }
                else
                {
                    break;
                }
            }
            i = this.FontFace.Glyph.Outline.Contours[c] + 1;
            if ((bClosed == false) && (lSegmentCount > 1) && (inSingleStroke == false))
            {
                calculatedPath = "L " + pointFirst.X.Value + " " + (-pointFirst.Y.Value + this.FontFace.BBox.Top) + " ";
               strPath.Append(calculatedPath);
            }

        }
        strPath.Append("Z");
        glyphPath = strPath.ToString();

        return glyphPath;
    }`