CSJ2K.j2k.codestream.writer.HeaderEncoder.writeRGN C# (CSharp) Method

        private void writeRGN(int tIdx)
        {
            int i;
            int markSegLen; // the marker length

            // Write one RGN marker per component
            for (i = 0; i < nComp; i++)
            {
                // RGN marker
                hbuf.Write((System.Int16) CSJ2K.j2k.codestream.Markers.RGN);

                // Calculate length (Lrgn)
                // Basic: Lrgn (2) + Srgn (1) + SPrgn + one byte
                // or two for component number
                markSegLen = 4 + ((nComp < 257)?1:2);
                hbuf.Write((System.Int16) markSegLen);

                // Write component (Crgn)
                if (nComp < 257)
                {
                    hbuf.Write((System.Byte) i);
                }
                else
                {
                    hbuf.Write((System.Int16) i);
                }

                // Write type of ROI (Srgn)
                hbuf.Write((System.Byte) CSJ2K.j2k.codestream.Markers.SRGN_IMPLICIT);

                // Write ROI info (SPrgn)
                hbuf.Write((System.Byte) ((System.Int32) (encSpec.rois.getTileCompVal(tIdx, i))));
            }
        }