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/home/eko/MUBench/MUBench/mubench.pipeline/../checkouts/itext/5091/original-src/com/itextpdf/text/pdf/qrcode/MatrixUtil.java

makeTypeInfoBits(ErrorCorrectionLevel, int, BitVector)

class MatrixUtil {
  // JISX0510:2004 (p.45) for details.
  public static void makeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitVector bits)
      throws WriterException {
    if (!QRCode.isValidMaskPattern(maskPattern)) {
      throw new WriterException("Invalid mask pattern");
    }
    int typeInfo = (ecLevel.getBits() << 3) | maskPattern;
    bits.appendBits(typeInfo, 5);

    int bchCode = calculateBCHCode(typeInfo, TYPE_INFO_POLY);
    bits.appendBits(bchCode, 10);

    BitVector maskBits = new BitVector();
    maskBits.appendBits(TYPE_INFO_MASK_PATTERN, 15);
    bits.xor(maskBits);

    if (bits.size() != 15) {  // Just in case.
      throw new WriterException("should not happen but we got: " + bits.size());
    }
  }

}