/**
* <p>Decodes a QR Code represented as a {@link BitMatrix}. A 1 or "true" is taken to mean a black module.</p>
*
* @param bits booleans representing white/black QR Code modules
* @return text and bytes encoded within the QR Code
* @throws ReaderException if the QR Code cannot be decoded
*/
public DecoderResult decode(BitMatrix bits)
{
try{
// Construct a parser and read version, error-correction level
BitMatrixParser parser = new BitMatrixParser(bits);
Version version = parser.readVersion();
ErrorCorrectionLevel ecLevel = parser.readFormatInformation().getErrorCorrectionLevel();
// Read codewords
sbyte[] codewords = parser.readCodewords();
// Separate into data blocks
DataBlock[] dataBlocks = DataBlock.getDataBlocks(codewords, version, ecLevel);
// Count total number of data bytes
int totalBytes = 0;
for (int i = 0; i < dataBlocks.Length; i++)
{
totalBytes += dataBlocks[i].NumDataCodewords;
}
sbyte[] resultBytes = new sbyte[totalBytes];
int resultOffset = 0;
// Error-correct and copy data blocks together into a stream of bytes
for (int j = 0; j < dataBlocks.Length; j++)
{
DataBlock dataBlock = dataBlocks[j];
sbyte[] codewordBytes = dataBlock.Codewords;
int numDataCodewords = dataBlock.NumDataCodewords;
correctErrors(codewordBytes, numDataCodewords);
for (int i = 0; i < numDataCodewords; i++)
{
resultBytes[resultOffset++] = codewordBytes[i];
}
}
// Decode the contents of that stream of bytes
string sResult = DecodedBitStreamParser.decode(resultBytes, version);
return(new DecoderResult(resultBytes, sResult, null));
}catch (Exception e) {
throw new ReaderException(e.Message);
}
}
/// <summary>
/// <p>Decodes a QR Code represented as a <seealso cref="BitMatrix"/>. A 1 or "true" is taken to mean a black module.</p>
/// </summary>
/// <param name="bits"> booleans representing white/black QR Code modules </param>
/// <returns> text and bytes encoded within the QR Code </returns>
/// <exception cref="FormatException"> if the QR Code cannot be decoded </exception>
/// <exception cref="ChecksumException"> if error correction fails </exception>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public com.google.zxing.common.DecoderResult decode(com.google.zxing.common.BitMatrix bits, java.util.Map<com.google.zxing.DecodeHintType,?> hints) throws com.google.zxing.FormatException, com.google.zxing.ChecksumException
public DecoderResult decode(BitMatrix bits, IDictionary <DecodeHintType, object> hints)
{
// Construct a parser and read version, error-correction level
BitMatrixParser parser = new BitMatrixParser(bits);
Version version = parser.readVersion();
ErrorCorrectionLevel ecLevel = parser.readFormatInformation().ErrorCorrectionLevel;
// Read codewords
sbyte[] codewords = parser.readCodewords();
// Separate into data blocks
DataBlock[] dataBlocks = DataBlock.getDataBlocks(codewords, version, ecLevel);
// Count total number of data bytes
int totalBytes = 0;
foreach (DataBlock dataBlock in dataBlocks)
{
totalBytes += dataBlock.NumDataCodewords;
}
sbyte[] resultBytes = new sbyte[totalBytes];
int resultOffset = 0;
// Error-correct and copy data blocks together into a stream of bytes
foreach (DataBlock dataBlock in dataBlocks)
{
sbyte[] codewordBytes = dataBlock.Codewords;
int numDataCodewords = dataBlock.NumDataCodewords;
correctErrors(codewordBytes, numDataCodewords);
for (int i = 0; i < numDataCodewords; i++)
{
resultBytes[resultOffset++] = codewordBytes[i];
}
}
// Decode the contents of that stream of bytes
return(DecodedBitStreamParser.decode(resultBytes, version, ecLevel, hints));
}