iTextSharp.text.pdf.BarcodeQRCode.GetBitMatrix C# (CSharp) Method

        private byte[] GetBitMatrix() {
            int width = bm.GetWidth();
            int height = bm.GetHeight();
            int stride = (width + 7) / 8;
            byte[] b = new byte[stride * height];
            sbyte[][] mt = bm.GetArray();
            for (int y = 0; y < height; ++y) {
                sbyte[] line = mt[y];
                for (int x = 0; x < width; ++x) {
                    if (line[x] != 0) {
                        int offset = stride * y + x / 8;
                        b[offset] |= (byte)(0x80 >> (x % 8));
                    }
                }
            }
            return b;
        }