// Make bit vector of type information. On success, store the result in "bits" and return true. // Encode error correction level and mask pattern. See 8.9 of // JISX0510:2004 (p.45) for details. public static void MakeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitVector bits) { 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()); } }
// Make bit vector of type information. On success, store the result in "bits" and return true. // Encode error correction level and mask pattern. See 8.9 of // JISX0510:2004 (p.45) for details. public static void MakeTypeInfoBits(ErrorCorrectionLevel ecLevel, int maskPattern, BitVector bits) { 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()); } }