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Decoder.php 0000777 00000016345 14711055101 0006635 0 ustar 00 <?php /* * Copyright 2007 ZXing authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace Zxing\Qrcode\Decoder; use Zxing\ChecksumException; use Zxing\DecodeHintType; use Zxing\FormatException; use Zxing\Common\BitMatrix; use Zxing\Common\DecoderResult; use Zxing\Common\Reedsolomon\GenericGF; use Zxing\Common\Reedsolomon\ReedSolomonDecoder; use Zxing\Common\Reedsolomon\ReedSolomonException; /** * <p>The main class which implements QR Code decoding -- as opposed to locating and extracting * the QR Code from an image.</p> * * @author Sean Owen */ final class Decoder { private $rsDecoder; public function __construct() { $this->rsDecoder = new ReedSolomonDecoder(GenericGF::$QR_CODE_FIELD_256); } public function decode($variable, $hints = null) { if (is_array($variable)) { return $this->decodeImage($variable, $hints); } elseif ($variable instanceof BitMatrix) { return $this->decodeBits($variable, $hints); } elseif ($variable instanceof BitMatrixParser) { return $this->decodeParser($variable, $hints); } die('decode error Decoder.php'); } /** * <p>Convenience method that can decode a QR Code represented as a 2D array of booleans. * "true" is taken to mean a black module.</p> * * @param array $image booleans representing white/black QR Code modules * @param hints decoding hints that should be used to influence decoding * * @return text and bytes encoded within the QR Code * @throws FormatException if the QR Code cannot be decoded * @throws ChecksumException if error correction fails */ public function decodeImage($image, $hints = null) { $dimension = count($image); $bits = new BitMatrix($dimension); for ($i = 0; $i < $dimension; $i++) { for ($j = 0; $j < $dimension; $j++) { if ($image[$i][$j]) { $bits->set($j, $i); } } } return $this->decode($bits, $hints); } /** * <p>Decodes a QR Code represented as a {@link BitMatrix}. A 1 or "true" is taken to mean a black module.</p> * * @param BitMatrix $bits booleans representing white/black QR Code modules * @param hints decoding hints that should be used to influence decoding * * @return text and bytes encoded within the QR Code * @throws FormatException if the QR Code cannot be decoded * @throws ChecksumException if error correction fails */ public function decodeBits($bits, $hints = null) { // Construct a parser and read version, error-correction level $parser = new BitMatrixParser($bits); $fe = null; $ce = null; try { return $this->decode($parser, $hints); } catch (FormatException $e) { $fe = $e; } catch (ChecksumException $e) { $ce = $e; } try { // Revert the bit matrix $parser->remask(); // Will be attempting a mirrored reading of the version and format info. $parser->setMirror(true); // Preemptively read the version. $parser->readVersion(); // Preemptively read the format information. $parser->readFormatInformation(); /* * Since we're here, this means we have successfully detected some kind * of version and format information when mirrored. This is a good sign, * that the QR code may be mirrored, and we should try once more with a * mirrored content. */ // Prepare for a mirrored reading. $parser->mirror(); $result = $this->decode($parser, $hints); // Success! Notify the caller that the code was mirrored. $result->setOther(new QRCodeDecoderMetaData(true)); return $result; } catch (FormatException $e) {// catch (FormatException | ChecksumException e) { // Throw the exception from the original reading if ($fe != null) { throw $fe; } if ($ce != null) { throw $ce; } throw $e; } } private function decodeParser($parser, $hints = null) { $version = $parser->readVersion(); $ecLevel = $parser->readFormatInformation()->getErrorCorrectionLevel(); // Read codewords $codewords = $parser->readCodewords(); // Separate into data blocks $dataBlocks = DataBlock::getDataBlocks($codewords, $version, $ecLevel); // Count total number of data bytes $totalBytes = 0; foreach ($dataBlocks as $dataBlock) { $totalBytes += $dataBlock->getNumDataCodewords(); } $resultBytes = fill_array(0, $totalBytes, 0); $resultOffset = 0; // Error-correct and copy data blocks together into a stream of bytes foreach ($dataBlocks as $dataBlock) { $codewordBytes = $dataBlock->getCodewords(); $numDataCodewords = $dataBlock->getNumDataCodewords(); $this->correctErrors($codewordBytes, $numDataCodewords); for ($i = 0; $i < $numDataCodewords; $i++) { $resultBytes[$resultOffset++] = $codewordBytes[$i]; } } // Decode the contents of that stream of bytes return DecodedBitStreamParser::decode($resultBytes, $version, $ecLevel, $hints); } /** * <p>Given data and error-correction codewords received, possibly corrupted by errors, attempts to * correct the errors in-place using Reed-Solomon error correction.</p> * * @param codewordBytes data and error correction codewords * @param numDataCodewords number of codewords that are data bytes * * @throws ChecksumException if error correction fails */ private function correctErrors(&$codewordBytes, $numDataCodewords) { $numCodewords = count($codewordBytes); // First read into an array of ints $codewordsInts = fill_array(0, $numCodewords, 0); for ($i = 0; $i < $numCodewords; $i++) { $codewordsInts[$i] = $codewordBytes[$i] & 0xFF; } $numECCodewords = count($codewordBytes) - $numDataCodewords; try { $this->rsDecoder->decode($codewordsInts, $numECCodewords); } catch (ReedSolomonException $ignored) { throw ChecksumException::getChecksumInstance(); } // Copy back into array of bytes -- only need to worry about the bytes that were data // We don't care about errors in the error-correction codewords for ($i = 0; $i < $numDataCodewords; $i++) { $codewordBytes[$i] = $codewordsInts[$i]; } } } QRCodeDecoderMetaData.php 0000777 00000000566 14711055101 0011272 0 ustar 00 <?php namespace Zxing\Qrcode\Decoder; class QRCodeDecoderMetaData { /** @var bool */ private $mirrored; /** * QRCodeDecoderMetaData constructor. * @param bool $mirrored */ public function __construct($mirrored) { $this->mirrored = $mirrored; } public function isMirrored() { return $this->mirrored; } } DataMask.php 0000777 00000011065 14711055101 0006747 0 ustar 00 <?php /* * Copyright 2007 ZXing authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace Zxing\Qrcode\Decoder; use Zxing\Common\BitMatrix; /** * <p>Encapsulates data masks for the data bits in a QR code, per ISO 18004:2006 6.8. Implementations * of this class can un-mask a raw BitMatrix. For simplicity, they will unmask the entire BitMatrix, * including areas used for finder patterns, timing patterns, etc. These areas should be unused * after the point they are unmasked anyway.</p> * * <p>Note that the diagram in section 6.8.1 is misleading since it indicates that i is column position * and j is row position. In fact, as the text says, i is row position and j is column position.</p> * * @author Sean Owen */ abstract class DataMask { /** * See ISO 18004:2006 6.8.1 */ private static $DATA_MASKS = []; public function __construct() { } public static function Init() { self::$DATA_MASKS = [ new DataMask000(), new DataMask001(), new DataMask010(), new DataMask011(), new DataMask100(), new DataMask101(), new DataMask110(), new DataMask111(), ]; } /** * @param reference a value between 0 and 7 indicating one of the eight possible * data mask patterns a QR Code may use * * @return DataMask encapsulating the data mask pattern */ public static function forReference($reference) { if ($reference < 0 || $reference > 7) { throw new \InvalidArgumentException(); } return self::$DATA_MASKS[$reference]; } /** * <p>Implementations of this method reverse the data masking process applied to a QR Code and * make its bits ready to read.</p> * * @param bits representation of QR Code bits * @param dimension dimension of QR Code, represented by bits, being unmasked */ final public function unmaskBitMatrix($bits, $dimension) { for ($i = 0; $i < $dimension; $i++) { for ($j = 0; $j < $dimension; $j++) { if ($this->isMasked($i, $j)) { $bits->flip($j, $i); } } } } abstract public function isMasked($i, $j); } DataMask::Init(); /** * 000: mask bits for which (x + y) mod 2 == 0 */ final class DataMask000 extends DataMask { // @Override public function isMasked($i, $j) { return (($i + $j) & 0x01) == 0; } } /** * 001: mask bits for which x mod 2 == 0 */ final class DataMask001 extends DataMask { //@Override public function isMasked($i, $j) { return ($i & 0x01) == 0; } } /** * 010: mask bits for which y mod 3 == 0 */ final class DataMask010 extends DataMask { //@Override public function isMasked($i, $j) { return $j % 3 == 0; } } /** * 011: mask bits for which (x + y) mod 3 == 0 */ final class DataMask011 extends DataMask { //@Override public function isMasked($i, $j) { return ($i + $j) % 3 == 0; } } /** * 100: mask bits for which (x/2 + y/3) mod 2 == 0 */ final class DataMask100 extends DataMask { //@Override public function isMasked($i, $j) { return (int)(((int)($i / 2) + (int)($j / 3)) & 0x01) == 0; } } /** * 101: mask bits for which xy mod 2 + xy mod 3 == 0 */ final class DataMask101 extends DataMask { //@Override public function isMasked($i, $j) { $temp = $i * $j; return ($temp & 0x01) + ($temp % 3) == 0; } } /** * 110: mask bits for which (xy mod 2 + xy mod 3) mod 2 == 0 */ final class DataMask110 extends DataMask { //@Override public function isMasked($i, $j) { $temp = $i * $j; return ((($temp & 0x01) + ($temp % 3)) & 0x01) == 0; } } /** * 111: mask bits for which ((x+y)mod 2 + xy mod 3) mod 2 == 0 */ final class DataMask111 extends DataMask { //@Override public function isMasked($i, $j) { return (((($i + $j) & 0x01) + (($i * $j) % 3)) & 0x01) == 0; } } DecodedBitStreamParser.php 0000777 00000034563 14711055101 0011611 0 ustar 00 <?php /* * Copyright 2007 ZXing authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace Zxing\Qrcode\Decoder; use Zxing\DecodeHintType; use Zxing\FormatException; use Zxing\Common\BitSource; use Zxing\Common\CharacterSetECI; use Zxing\Common\DecoderResult; use Zxing\Common\StringUtils; /** * <p>QR Codes can encode text as bits in one of several modes, and can use multiple modes * in one QR Code. This class decodes the bits back into text.</p> * * <p>See ISO 18004:2006, 6.4.3 - 6.4.7</p> * * @author Sean Owen */ final class DecodedBitStreamParser { /** * See ISO 18004:2006, 6.4.4 Table 5 */ private static $ALPHANUMERIC_CHARS = [ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', ' ', '$', '%', '*', '+', '-', '.', '/', ':', ]; private static $GB2312_SUBSET = 1; public static function decode($bytes, $version, $ecLevel, $hints) { $bits = new BitSource($bytes); $result = '';//new StringBuilder(50); $byteSegments = []; $symbolSequence = -1; $parityData = -1; try { $currentCharacterSetECI = null; $fc1InEffect = false; $mode = ''; do { // While still another segment to read... if ($bits->available() < 4) { // OK, assume we're done. Really, a TERMINATOR mode should have been recorded here $mode = Mode::$TERMINATOR; } else { $mode = Mode::forBits($bits->readBits(4)); // mode is encoded by 4 bits } if ($mode != Mode::$TERMINATOR) { if ($mode == Mode::$FNC1_FIRST_POSITION || $mode == Mode::$FNC1_SECOND_POSITION) { // We do little with FNC1 except alter the parsed result a bit according to the spec $fc1InEffect = true; } else if ($mode == Mode::$STRUCTURED_APPEND) { if ($bits->available() < 16) { throw FormatException::getFormatInstance(); } // sequence number and parity is added later to the result metadata // Read next 8 bits (symbol sequence #) and 8 bits (parity data), then continue $symbolSequence = $bits->readBits(8); $parityData = $bits->readBits(8); } else if ($mode == Mode::$ECI) { // Count doesn't apply to ECI $value = self::parseECIValue($bits); $currentCharacterSetECI = CharacterSetECI::getCharacterSetECIByValue($value); if ($currentCharacterSetECI == null) { throw FormatException::getFormatInstance(); } } else { // First handle Hanzi mode which does not start with character count if ($mode == Mode::$HANZI) { //chinese mode contains a sub set indicator right after mode indicator $subset = $bits->readBits(4); $countHanzi = $bits->readBits($mode->getCharacterCountBits($version)); if ($subset == self::$GB2312_SUBSET) { self::decodeHanziSegment($bits, $result, $countHanzi); } } else { // "Normal" QR code modes: // How many characters will follow, encoded in this mode? $count = $bits->readBits($mode->getCharacterCountBits($version)); if ($mode == Mode::$NUMERIC) { self::decodeNumericSegment($bits, $result, $count); } else if ($mode == Mode::$ALPHANUMERIC) { self::decodeAlphanumericSegment($bits, $result, $count, $fc1InEffect); } else if ($mode == Mode::$BYTE) { self::decodeByteSegment($bits, $result, $count, $currentCharacterSetECI, $byteSegments, $hints); } else if ($mode == Mode::$KANJI) { self::decodeKanjiSegment($bits, $result, $count); } else { throw FormatException::getFormatInstance(); } } } } } while ($mode != Mode::$TERMINATOR); } catch (\InvalidArgumentException $iae) { // from readBits() calls throw FormatException::getFormatInstance(); } return new DecoderResult($bytes, $result, empty($byteSegments) ? null : $byteSegments, $ecLevel == null ? null : 'L',//ErrorCorrectionLevel::toString($ecLevel), $symbolSequence, $parityData); } private static function parseECIValue($bits) { $firstByte = $bits->readBits(8); if (($firstByte & 0x80) == 0) { // just one byte return $firstByte & 0x7F; } if (($firstByte & 0xC0) == 0x80) { // two bytes $secondByte = $bits->readBits(8); return (($firstByte & 0x3F) << 8) | $secondByte; } if (($firstByte & 0xE0) == 0xC0) { // three bytes $secondThirdBytes = $bits->readBits(16); return (($firstByte & 0x1F) << 16) | $secondThirdBytes; } throw FormatException::getFormatInstance(); } /** * See specification GBT 18284-2000 */ private static function decodeHanziSegment($bits, &$result, $count) { // Don't crash trying to read more bits than we have available. if ($count * 13 > $bits->available()) { throw FormatException::getFormatInstance(); } // Each character will require 2 bytes. Read the characters as 2-byte pairs // and decode as GB2312 afterwards $buffer = fill_array(0, 2 * $count, 0); $offset = 0; while ($count > 0) { // Each 13 bits encodes a 2-byte character $twoBytes = $bits->readBits(13); $assembledTwoBytes = (($twoBytes / 0x060) << 8) | ($twoBytes % 0x060); if ($assembledTwoBytes < 0x003BF) { // In the 0xA1A1 to 0xAAFE range $assembledTwoBytes += 0x0A1A1; } else { // In the 0xB0A1 to 0xFAFE range $assembledTwoBytes += 0x0A6A1; } $buffer[$offset] = (($assembledTwoBytes >> 8) & 0xFF);//(byte) $buffer[$offset + 1] = ($assembledTwoBytes & 0xFF);//(byte) $offset += 2; $count--; } $result .= iconv('GB2312', 'UTF-8', implode($buffer)); } private static function decodeNumericSegment($bits, &$result, $count) { // Read three digits at a time while ($count >= 3) { // Each 10 bits encodes three digits if ($bits->available() < 10) { throw FormatException::getFormatInstance(); } $threeDigitsBits = $bits->readBits(10); if ($threeDigitsBits >= 1000) { throw FormatException::getFormatInstance(); } $result .= (self::toAlphaNumericChar($threeDigitsBits / 100)); $result .= (self::toAlphaNumericChar(($threeDigitsBits / 10) % 10)); $result .= (self::toAlphaNumericChar($threeDigitsBits % 10)); $count -= 3; } if ($count == 2) { // Two digits left over to read, encoded in 7 bits if ($bits->available() < 7) { throw FormatException::getFormatInstance(); } $twoDigitsBits = $bits->readBits(7); if ($twoDigitsBits >= 100) { throw FormatException::getFormatInstance(); } $result .= (self::toAlphaNumericChar($twoDigitsBits / 10)); $result .= (self::toAlphaNumericChar($twoDigitsBits % 10)); } else if ($count == 1) { // One digit left over to read if ($bits->available() < 4) { throw FormatException::getFormatInstance(); } $digitBits = $bits->readBits(4); if ($digitBits >= 10) { throw FormatException::getFormatInstance(); } $result .= (self::toAlphaNumericChar($digitBits)); } } private static function toAlphaNumericChar($value) { if ($value >= count(self::$ALPHANUMERIC_CHARS)) { throw FormatException::getFormatInstance(); } return self::$ALPHANUMERIC_CHARS[$value]; } private static function decodeAlphanumericSegment($bits, &$result, $count, $fc1InEffect) { // Read two characters at a time $start = strlen($result); while ($count > 1) { if ($bits->available() < 11) { throw FormatException::getFormatInstance(); } $nextTwoCharsBits = $bits->readBits(11); $result .= (self::toAlphaNumericChar($nextTwoCharsBits / 45)); $result .= (self::toAlphaNumericChar($nextTwoCharsBits % 45)); $count -= 2; } if ($count == 1) { // special case: one character left if ($bits->available() < 6) { throw FormatException::getFormatInstance(); } $result .= self::toAlphaNumericChar($bits->readBits(6)); } // See section 6.4.8.1, 6.4.8.2 if ($fc1InEffect) { // We need to massage the result a bit if in an FNC1 mode: for ($i = $start; $i < strlen($result); $i++) { if ($result[$i] == '%') { if ($i < strlen($result) - 1 && $result[$i + 1] == '%') { // %% is rendered as % $result = substr_replace($result, '', $i + 1, 1);//deleteCharAt(i + 1); } else { // In alpha mode, % should be converted to FNC1 separator 0x1D $result . setCharAt($i, chr(0x1D)); } } } } } private static function decodeByteSegment($bits, &$result, $count, $currentCharacterSetECI, &$byteSegments, $hints) { // Don't crash trying to read more bits than we have available. if (8 * $count > $bits->available()) { throw FormatException::getFormatInstance(); } $readBytes = fill_array(0, $count, 0); for ($i = 0; $i < $count; $i++) { $readBytes[$i] = $bits->readBits(8);//(byte) } $text = implode(array_map('chr', $readBytes)); $encoding = ''; if ($currentCharacterSetECI == null) { // The spec isn't clear on this mode; see // section 6.4.5: t does not say which encoding to assuming // upon decoding. I have seen ISO-8859-1 used as well as // Shift_JIS -- without anything like an ECI designator to // give a hint. $encoding = mb_detect_encoding($text, $hints); } else { $encoding = $currentCharacterSetECI->name(); } // $result.= mb_convert_encoding($text ,$encoding);//(new String(readBytes, encoding)); $result .= $text;//(new String(readBytes, encoding)); $byteSegments = array_merge($byteSegments, $readBytes); } private static function decodeKanjiSegment($bits, &$result, $count) { // Don't crash trying to read more bits than we have available. if ($count * 13 > $bits->available()) { throw FormatException::getFormatInstance(); } // Each character will require 2 bytes. Read the characters as 2-byte pairs // and decode as Shift_JIS afterwards $buffer = [0, 2 * $count, 0]; $offset = 0; while ($count > 0) { // Each 13 bits encodes a 2-byte character $twoBytes = $bits->readBits(13); $assembledTwoBytes = (($twoBytes / 0x0C0) << 8) | ($twoBytes % 0x0C0); if ($assembledTwoBytes < 0x01F00) { // In the 0x8140 to 0x9FFC range $assembledTwoBytes += 0x08140; } else { // In the 0xE040 to 0xEBBF range $assembledTwoBytes += 0x0C140; } $buffer[$offset] = ($assembledTwoBytes >> 8);//(byte) $buffer[$offset + 1] = $assembledTwoBytes; //(byte) $offset += 2; $count--; } // Shift_JIS may not be supported in some environments: $result .= iconv('shift-jis', 'utf-8', implode($buffer)); } private function DecodedBitStreamParser() { } } ErrorCorrectionLevel.php 0000777 00000004501 14711055101 0011370 0 ustar 00 <?php /* * Copyright 2007 ZXing authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace Zxing\Qrcode\Decoder; /** * <p>See ISO 18004:2006, 6.5.1. This enum encapsulates the four error correction levels * defined by the QR code standard.</p> * * @author Sean Owen */ class ErrorCorrectionLevel { private static $FOR_BITS; private $bits; private $ordinal; public function __construct($bits, $ordinal = 0) { $this->bits = $bits; $this->ordinal = $ordinal; } public static function Init() { self::$FOR_BITS = [ new ErrorCorrectionLevel(0x00, 1), //M new ErrorCorrectionLevel(0x01, 0), //L new ErrorCorrectionLevel(0x02, 3), //H new ErrorCorrectionLevel(0x03, 2), //Q ]; } /** L = ~7% correction */ // self::$L = new ErrorCorrectionLevel(0x01); /** M = ~15% correction */ //self::$M = new ErrorCorrectionLevel(0x00); /** Q = ~25% correction */ //self::$Q = new ErrorCorrectionLevel(0x03); /** H = ~30% correction */ //self::$H = new ErrorCorrectionLevel(0x02); /** * @param bits int containing the two bits encoding a QR Code's error correction level * * @return ErrorCorrectionLevel representing the encoded error correction level */ public static function forBits($bits) { if ($bits < 0 || $bits >= count(self::$FOR_BITS)) { throw new \InvalidArgumentException(); } $level = self::$FOR_BITS[$bits]; // $lev = self::$$bit; return $level; } public function getBits() { return $this->bits; } public function toString() { return $this->bits; } public function getOrdinal() { return $this->ordinal; } } ErrorCorrectionLevel::Init(); Mode.php 0000777 00000007750 14711055101 0006154 0 ustar 00 <?php /* * Copyright 2007 ZXing authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace Zxing\Qrcode\Decoder; /** * <p>See ISO 18004:2006, 6.4.1, Tables 2 and 3. This enum encapsulates the various modes in which * data can be encoded to bits in the QR code standard.</p> * * @author Sean Owen */ class Mode { public static $TERMINATOR; public static $NUMERIC; public static $ALPHANUMERIC; public static $STRUCTURED_APPEND; public static $BYTE; public static $ECI; public static $KANJI; public static $FNC1_FIRST_POSITION; public static $FNC1_SECOND_POSITION; public static $HANZI; private $characterCountBitsForVersions; private $bits; public function __construct($characterCountBitsForVersions, $bits) { $this->characterCountBitsForVersions = $characterCountBitsForVersions; $this->bits = $bits; } public static function Init() { self::$TERMINATOR = new Mode([0, 0, 0], 0x00); // Not really a mode... self::$NUMERIC = new Mode([10, 12, 14], 0x01); self::$ALPHANUMERIC = new Mode([9, 11, 13], 0x02); self::$STRUCTURED_APPEND = new Mode([0, 0, 0], 0x03); // Not supported self::$BYTE = new Mode([8, 16, 16], 0x04); self::$ECI = new Mode([0, 0, 0], 0x07); // character counts don't apply self::$KANJI = new Mode([8, 10, 12], 0x08); self::$FNC1_FIRST_POSITION = new Mode([0, 0, 0], 0x05); self::$FNC1_SECOND_POSITION = new Mode([0, 0, 0], 0x09); /** See GBT 18284-2000; "Hanzi" is a transliteration of this mode name. */ self::$HANZI = new Mode([8, 10, 12], 0x0D); } /** * @param bits four bits encoding a QR Code data mode * * @return Mode encoded by these bits * @throws InvalidArgumentException if bits do not correspond to a known mode */ public static function forBits($bits) { switch ($bits) { case 0x0: return self::$TERMINATOR; case 0x1: return self::$NUMERIC; case 0x2: return self::$ALPHANUMERIC; case 0x3: return self::$STRUCTURED_APPEND; case 0x4: return self::$BYTE; case 0x5: return self::$FNC1_FIRST_POSITION; case 0x7: return self::$ECI; case 0x8: return self::$KANJI; case 0x9: return self::$FNC1_SECOND_POSITION; case 0xD: // 0xD is defined in GBT 18284-2000, may not be supported in foreign country return self::$HANZI; default: throw new \InvalidArgumentException(); } } /** * @param version version in question * * @return number of bits used, in this QR Code symbol {@link Version}, to encode the * count of characters that will follow encoded in this Mode */ public function getCharacterCountBits($version) { $number = $version->getVersionNumber(); $offset = 0; if ($number <= 9) { $offset = 0; } else if ($number <= 26) { $offset = 1; } else { $offset = 2; } return $this->characterCountBitsForVersions[$offset]; } public function getBits() { return $this->bits; } } Mode::Init(); Version.php 0000777 00000061672 14711055101 0006720 0 ustar 00 <?php /* * Copyright 2007 ZXing authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace Zxing\Qrcode\Decoder; use Zxing\FormatException; use Zxing\Common\BitMatrix; /** * See ISO 18004:2006 Annex D * * @author Sean Owen */ class Version { /** * See ISO 18004:2006 Annex D. * Element i represents the raw version bits that specify version i + 7 */ private static $VERSION_DECODE_INFO = array( 0x07C94, 0x085BC, 0x09A99, 0x0A4D3, 0x0BBF6, 0x0C762, 0x0D847, 0x0E60D, 0x0F928, 0x10B78, 0x1145D, 0x12A17, 0x13532, 0x149A6, 0x15683, 0x168C9, 0x177EC, 0x18EC4, 0x191E1, 0x1AFAB, 0x1B08E, 0x1CC1A, 0x1D33F, 0x1ED75, 0x1F250, 0x209D5, 0x216F0, 0x228BA, 0x2379F, 0x24B0B, 0x2542E, 0x26A64, 0x27541, 0x28C69 ); private static $VERSIONS; private $versionNumber; private $alignmentPatternCenters; private $ecBlocks; private $totalCodewords; public function __construct($versionNumber, $alignmentPatternCenters, $ecBlocks) {//ECBlocks... ecBlocks $this->versionNumber = $versionNumber; $this->alignmentPatternCenters = $alignmentPatternCenters; $this->ecBlocks = $ecBlocks; $total = 0; if(is_array($ecBlocks)) { $ecCodewords = $ecBlocks[0]->getECCodewordsPerBlock(); $ecbArray = $ecBlocks[0]->getECBlocks(); }else{ $ecCodewords = $ecBlocks->getECCodewordsPerBlock(); $ecbArray = $ecBlocks->getECBlocks(); } foreach ($ecbArray as $ecBlock) { $total += $ecBlock->getCount() * ($ecBlock->getDataCodewords() + $ecCodewords); } $this->totalCodewords = $total; } public function getVersionNumber() { return $this->versionNumber; } public function getAlignmentPatternCenters() { return $this->alignmentPatternCenters; } public function getTotalCodewords() { return $this->totalCodewords; } public function getDimensionForVersion() { return 17 + 4 * $this->versionNumber; } public function getECBlocksForLevel($ecLevel) { return $this->ecBlocks[$ecLevel->getOrdinal()]; } /** * <p>Deduces version information purely from QR Code dimensions.</p> * * @param dimension dimension in modules * @return Version for a QR Code of that dimension * @throws FormatException if dimension is not 1 mod 4 */ public static function getProvisionalVersionForDimension($dimension) { if ($dimension % 4 != 1) { throw FormatException::getFormatInstance(); } try { return self::getVersionForNumber(($dimension - 17) / 4); } catch (\InvalidArgumentException $ignored) { throw FormatException::getFormatInstance(); } } public static function getVersionForNumber($versionNumber) { if ($versionNumber < 1 || $versionNumber > 40) { throw new \InvalidArgumentException(); } if(!self::$VERSIONS){ self::$VERSIONS = self::buildVersions(); } return self::$VERSIONS[$versionNumber - 1]; } static function decodeVersionInformation($versionBits) { $bestDifference = PHP_INT_MAX; $bestVersion = 0; for ($i = 0; $i < count(self::$VERSION_DECODE_INFO); $i++) { $targetVersion = self::$VERSION_DECODE_INFO[$i]; // Do the version info bits match exactly? done. if ($targetVersion == $versionBits) { return self::getVersionForNumber($i + 7); } // Otherwise see if this is the closest to a real version info bit string // we have seen so far $bitsDifference = FormatInformation::numBitsDiffering($versionBits, $targetVersion); if ($bitsDifference < $bestDifference) { $bestVersion = $i + 7; $bestDifference = $bitsDifference; } } // We can tolerate up to 3 bits of error since no two version info codewords will // differ in less than 8 bits. if ($bestDifference <= 3) { return self::getVersionForNumber($bestVersion); } // If we didn't find a close enough match, fail return null; } /** * See ISO 18004:2006 Annex E */ function buildFunctionPattern() { $dimension = self::getDimensionForVersion(); $bitMatrix = new BitMatrix($dimension); // Top left finder pattern + separator + format $bitMatrix->setRegion(0, 0, 9, 9); // Top right finder pattern + separator + format $bitMatrix->setRegion($dimension - 8, 0, 8, 9); // Bottom left finder pattern + separator + format $bitMatrix->setRegion(0, $dimension - 8, 9, 8); // Alignment patterns $max = count($this->alignmentPatternCenters); for ($x = 0; $x < $max; $x++) { $i = $this->alignmentPatternCenters[$x] - 2; for ($y = 0; $y < $max; $y++) { if (($x == 0 && ($y == 0 || $y == $max - 1)) || ($x == $max - 1 && $y == 0)) { // No alignment patterns near the three finder paterns continue; } $bitMatrix->setRegion($this->alignmentPatternCenters[$y] - 2, $i, 5, 5); } } // Vertical timing pattern $bitMatrix->setRegion(6, 9, 1, $dimension - 17); // Horizontal timing pattern $bitMatrix->setRegion(9, 6, $dimension - 17, 1); if ($this->versionNumber > 6) { // Version info, top right $bitMatrix->setRegion($dimension - 11, 0, 3, 6); // Version info, bottom left $bitMatrix->setRegion(0, $dimension - 11, 6, 3); } return $bitMatrix; } /** * See ISO 18004:2006 6.5.1 Table 9 */ private static function buildVersions() { return array( new Version(1, array(), array(new ECBlocks(7, array(new ECB(1, 19))), new ECBlocks(10, array(new ECB(1, 16))), new ECBlocks(13, array(new ECB(1, 13))), new ECBlocks(17, array(new ECB(1, 9))))), new Version(2, array(6, 18), array(new ECBlocks(10, array(new ECB(1, 34))), new ECBlocks(16, array(new ECB(1, 28))), new ECBlocks(22, array(new ECB(1, 22))), new ECBlocks(28, array(new ECB(1, 16))))), new Version(3, array(6, 22), array( new ECBlocks(15, array(new ECB(1, 55))), new ECBlocks(26, array(new ECB(1, 44))), new ECBlocks(18, array(new ECB(2, 17))), new ECBlocks(22, array(new ECB(2, 13))))), new Version(4, array(6, 26), array(new ECBlocks(20, array(new ECB(1, 80))), new ECBlocks(18, array(new ECB(2, 32))), new ECBlocks(26, array(new ECB(2, 24))), new ECBlocks(16, array(new ECB(4, 9))))), new Version(5, array(6, 30), array(new ECBlocks(26, array(new ECB(1, 108))), new ECBlocks(24, array(new ECB(2, 43))), new ECBlocks(18, array(new ECB(2, 15), new ECB(2, 16))), new ECBlocks(22, array(new ECB(2, 11), new ECB(2, 12))))), new Version(6, array(6, 34), array(new ECBlocks(18, array(new ECB(2, 68))), new ECBlocks(16, array(new ECB(4, 27))), new ECBlocks(24, array(new ECB(4, 19))), new ECBlocks(28, array(new ECB(4, 15))))), new Version(7, array(6, 22, 38), array(new ECBlocks(20, array(new ECB(2, 78))), new ECBlocks(18, array(new ECB(4, 31))), new ECBlocks(18, array(new ECB(2, 14), new ECB(4, 15))), new ECBlocks(26, array(new ECB(4, 13), new ECB(1, 14))))), new Version(8, array(6, 24, 42), array(new ECBlocks(24, array(new ECB(2, 97))), new ECBlocks(22, array(new ECB(2, 38), new ECB(2, 39))), new ECBlocks(22, array(new ECB(4, 18), new ECB(2, 19))), new ECBlocks(26, array(new ECB(4, 14), new ECB(2, 15))))), new Version(9, array(6, 26, 46), array(new ECBlocks(30, array(new ECB(2, 116))), new ECBlocks(22, array(new ECB(3, 36), new ECB(2, 37))), new ECBlocks(20, array(new ECB(4, 16), new ECB(4, 17))), new ECBlocks(24, array(new ECB(4, 12), new ECB(4, 13))))), new Version(10, array(6, 28, 50), array(new ECBlocks(18, array(new ECB(2, 68), new ECB(2, 69))), new ECBlocks(26, array(new ECB(4, 43), new ECB(1, 44))), new ECBlocks(24, array(new ECB(6, 19), new ECB(2, 20))), new ECBlocks(28, array(new ECB(6, 15), new ECB(2, 16))))), new Version(11, array(6, 30, 54), array(new ECBlocks(20, array(new ECB(4, 81))), new ECBlocks(30, array(new ECB(1, 50), new ECB(4, 51))), new ECBlocks(28, array(new ECB(4, 22), new ECB(4, 23))), new ECBlocks(24, array(new ECB(3, 12), new ECB(8, 13))))), new Version(12, array(6, 32, 58), array(new ECBlocks(24, array(new ECB(2, 92), new ECB(2, 93))), new ECBlocks(22, array(new ECB(6, 36), new ECB(2, 37))), new ECBlocks(26, array(new ECB(4, 20), new ECB(6, 21))), new ECBlocks(28, array(new ECB(7, 14), new ECB(4, 15))))), new Version(13, array(6, 34, 62), array(new ECBlocks(26, array(new ECB(4, 107))), new ECBlocks(22, array(new ECB(8, 37), new ECB(1, 38))), new ECBlocks(24, array(new ECB(8, 20), new ECB(4, 21))), new ECBlocks(22, array(new ECB(12, 11), new ECB(4, 12))))), new Version(14, array(6, 26, 46, 66), array(new ECBlocks(30, array(new ECB(3, 115), new ECB(1, 116))), new ECBlocks(24, array(new ECB(4, 40), new ECB(5, 41))), new ECBlocks(20, array(new ECB(11, 16), new ECB(5, 17))), new ECBlocks(24, array(new ECB(11, 12), new ECB(5, 13))))), new Version(15, array(6, 26, 48, 70), array(new ECBlocks(22, array(new ECB(5, 87), new ECB(1, 88))), new ECBlocks(24, array(new ECB(5, 41), new ECB(5, 42))), new ECBlocks(30, array(new ECB(5, 24), new ECB(7, 25))), new ECBlocks(24, array(new ECB(11, 12), new ECB(7, 13))))), new Version(16, array(6, 26, 50, 74), array(new ECBlocks(24, array(new ECB(5, 98), new ECB(1, 99))), new ECBlocks(28, array(new ECB(7, 45), new ECB(3, 46))), new ECBlocks(24, array(new ECB(15, 19), new ECB(2, 20))), new ECBlocks(30, array(new ECB(3, 15), new ECB(13, 16))))), new Version(17, array(6, 30, 54, 78), array(new ECBlocks(28, array(new ECB(1, 107), new ECB(5, 108))), new ECBlocks(28, array(new ECB(10, 46), new ECB(1, 47))), new ECBlocks(28, array(new ECB(1, 22), new ECB(15, 23))), new ECBlocks(28, array(new ECB(2, 14), new ECB(17, 15))))), new Version(18, array(6, 30, 56, 82), array(new ECBlocks(30, array(new ECB(5, 120), new ECB(1, 121))), new ECBlocks(26, array(new ECB(9, 43), new ECB(4, 44))), new ECBlocks(28, array(new ECB(17, 22), new ECB(1, 23))), new ECBlocks(28, array(new ECB(2, 14), new ECB(19, 15))))), new Version(19, array(6, 30, 58, 86), array(new ECBlocks(28, array(new ECB(3, 113), new ECB(4, 114))), new ECBlocks(26, array(new ECB(3, 44), new ECB(11, 45))), new ECBlocks(26, array(new ECB(17, 21), new ECB(4, 22))), new ECBlocks(26, array(new ECB(9, 13), new ECB(16, 14))))), new Version(20, array(6, 34, 62, 90), array(new ECBlocks(28, array(new ECB(3, 107), new ECB(5, 108))), new ECBlocks(26, array(new ECB(3, 41), new ECB(13, 42))), new ECBlocks(30, array(new ECB(15, 24), new ECB(5, 25))), new ECBlocks(28, array(new ECB(15, 15), new ECB(10, 16))))), new Version(21, array(6, 28, 50, 72, 94), array( new ECBlocks(28, array(new ECB(4, 116), new ECB(4, 117))), new ECBlocks(26, array(new ECB(17, 42))), new ECBlocks(28, array(new ECB(17, 22), new ECB(6, 23))), new ECBlocks(30, array(new ECB(19, 16), new ECB(6, 17))))), new Version(22, array(6, 26, 50, 74, 98), array(new ECBlocks(28, array(new ECB(2, 111), new ECB(7, 112))), new ECBlocks(28, array(new ECB(17, 46))), new ECBlocks(30, array(new ECB(7, 24), new ECB(16, 25))), new ECBlocks(24, array(new ECB(34, 13))))), new Version(23, array(6, 30, 54, 78, 102), new ECBlocks(30, array(new ECB(4, 121), new ECB(5, 122))), new ECBlocks(28, array(new ECB(4, 47), new ECB(14, 48))), new ECBlocks(30, array(new ECB(11, 24), new ECB(14, 25))), new ECBlocks(30, array(new ECB(16, 15), new ECB(14, 16)))), new Version(24, array(6, 28, 54, 80, 106), array(new ECBlocks(30, array(new ECB(6, 117), new ECB(4, 118))), new ECBlocks(28, array(new ECB(6, 45), new ECB(14, 46))), new ECBlocks(30, array(new ECB(11, 24), new ECB(16, 25))), new ECBlocks(30, array(new ECB(30, 16), new ECB(2, 17))))), new Version(25, array(6, 32, 58, 84, 110), array(new ECBlocks(26, array(new ECB(8, 106), new ECB(4, 107))), new ECBlocks(28, array(new ECB(8, 47), new ECB(13, 48))), new ECBlocks(30, array(new ECB(7, 24), new ECB(22, 25))), new ECBlocks(30, array(new ECB(22, 15), new ECB(13, 16))))), new Version(26, array(6, 30, 58, 86, 114), array(new ECBlocks(28, array(new ECB(10, 114), new ECB(2, 115))), new ECBlocks(28, array(new ECB(19, 46), new ECB(4, 47))), new ECBlocks(28, array(new ECB(28, 22), new ECB(6, 23))), new ECBlocks(30, array(new ECB(33, 16), new ECB(4, 17))))), new Version(27, array(6, 34, 62, 90, 118), array(new ECBlocks(30, array(new ECB(8, 122), new ECB(4, 123))), new ECBlocks(28, array(new ECB(22, 45), new ECB(3, 46))), new ECBlocks(30, array(new ECB(8, 23), new ECB(26, 24))), new ECBlocks(30, array(new ECB(12, 15), new ECB(28, 16))))), new Version(28, array(6, 26, 50, 74, 98, 122), array(new ECBlocks(30, array(new ECB(3, 117), new ECB(10, 118))), new ECBlocks(28, array(new ECB(3, 45), new ECB(23, 46))), new ECBlocks(30, array(new ECB(4, 24), new ECB(31, 25))), new ECBlocks(30, array(new ECB(11, 15), new ECB(31, 16))))), new Version(29, array(6, 30, 54, 78, 102, 126), array(new ECBlocks(30, array(new ECB(7, 116), new ECB(7, 117))), new ECBlocks(28, array(new ECB(21, 45), new ECB(7, 46))), new ECBlocks(30, array(new ECB(1, 23), new ECB(37, 24))), new ECBlocks(30, array(new ECB(19, 15), new ECB(26, 16))))), new Version(30, array(6, 26, 52, 78, 104, 130), array(new ECBlocks(30, array(new ECB(5, 115), new ECB(10, 116))), new ECBlocks(28, array(new ECB(19, 47), new ECB(10, 48))), new ECBlocks(30, array(new ECB(15, 24), new ECB(25, 25))), new ECBlocks(30, array(new ECB(23, 15), new ECB(25, 16))))), new Version(31, array(6, 30, 56, 82, 108, 134), array(new ECBlocks(30, array(new ECB(13, 115), new ECB(3, 116))), new ECBlocks(28, array(new ECB(2, 46), new ECB(29, 47))), new ECBlocks(30, array(new ECB(42, 24), new ECB(1, 25))), new ECBlocks(30, array(new ECB(23, 15), new ECB(28, 16))))), new Version(32, array(6, 34, 60, 86, 112, 138), array(new ECBlocks(30, array(new ECB(17, 115))), new ECBlocks(28, array(new ECB(10, 46), new ECB(23, 47))), new ECBlocks(30, array(new ECB(10, 24), new ECB(35, 25))), new ECBlocks(30, array(new ECB(19, 15), new ECB(35, 16))))), new Version(33, array(6, 30, 58, 86, 114, 142), array(new ECBlocks(30, array(new ECB(17, 115), new ECB(1, 116))), new ECBlocks(28, array(new ECB(14, 46), new ECB(21, 47))), new ECBlocks(30, array(new ECB(29, 24), new ECB(19, 25))), new ECBlocks(30, array(new ECB(11, 15), new ECB(46, 16))))), new Version(34, array(6, 34, 62, 90, 118, 146), array(new ECBlocks(30, array(new ECB(13, 115), new ECB(6, 116))), new ECBlocks(28, array(new ECB(14, 46), new ECB(23, 47))), new ECBlocks(30, array(new ECB(44, 24), new ECB(7, 25))), new ECBlocks(30, array(new ECB(59, 16), new ECB(1, 17))))), new Version(35, array(6, 30, 54, 78, 102, 126, 150), array(new ECBlocks(30, array(new ECB(12, 121), new ECB(7, 122))), new ECBlocks(28, array(new ECB(12, 47), new ECB(26, 48))), new ECBlocks(30, array(new ECB(39, 24), new ECB(14, 25))), new ECBlocks(30, array(new ECB(22, 15), new ECB(41, 16))))), new Version(36, array(6, 24, 50, 76, 102, 128, 154), array(new ECBlocks(30, array(new ECB(6, 121), new ECB(14, 122))), new ECBlocks(28, array(new ECB(6, 47), new ECB(34, 48))), new ECBlocks(30, array(new ECB(46, 24), new ECB(10, 25))), new ECBlocks(30, array(new ECB(2, 15), new ECB(64, 16))))), new Version(37, array(6, 28, 54, 80, 106, 132, 158), array(new ECBlocks(30, array(new ECB(17, 122), new ECB(4, 123))), new ECBlocks(28, array(new ECB(29, 46), new ECB(14, 47))), new ECBlocks(30, array(new ECB(49, 24), new ECB(10, 25))), new ECBlocks(30, array(new ECB(24, 15), new ECB(46, 16))))), new Version(38, array(6, 32, 58, 84, 110, 136, 162), array(new ECBlocks(30, array(new ECB(4, 122), new ECB(18, 123))), new ECBlocks(28, array(new ECB(13, 46), new ECB(32, 47))), new ECBlocks(30, array(new ECB(48, 24), new ECB(14, 25))), new ECBlocks(30, array(new ECB(42, 15), new ECB(32, 16))))), new Version(39, array(6, 26, 54, 82, 110, 138, 166), array(new ECBlocks(30, array(new ECB(20, 117), new ECB(4, 118))), new ECBlocks(28, array(new ECB(40, 47), new ECB(7, 48))), new ECBlocks(30, array(new ECB(43, 24), new ECB(22, 25))), new ECBlocks(30, array(new ECB(10, 15), new ECB(67, 16))))), new Version(40, array(6, 30, 58, 86, 114, 142, 170), array(new ECBlocks(30, array(new ECB(19, 118), new ECB(6, 119))), new ECBlocks(28, array(new ECB(18, 47), new ECB(31, 48))), new ECBlocks(30, array(new ECB(34, 24), new ECB(34, 25))), new ECBlocks(30, array(new ECB(20, 15), new ECB(61, 16))))) ); } } /** * <p>Encapsulates a set of error-correction blocks in one symbol version. Most versions will * use blocks of differing sizes within one version, so, this encapsulates the parameters for * each set of blocks. It also holds the number of error-correction codewords per block since it * will be the same across all blocks within one version.</p> */ final class ECBlocks { private $ecCodewordsPerBlock; private $ecBlocks; function __construct($ecCodewordsPerBlock, $ecBlocks) { $this->ecCodewordsPerBlock = $ecCodewordsPerBlock; $this->ecBlocks = $ecBlocks; } public function getECCodewordsPerBlock() { return $this->ecCodewordsPerBlock; } public function getNumBlocks() { $total = 0; foreach ($this->ecBlocks as $ecBlock) { $total += $ecBlock->getCount(); } return $total; } public function getTotalECCodewords() { return $this->ecCodewordsPerBlock * $this->getNumBlocks(); } public function getECBlocks() { return $this->ecBlocks; } } /** * <p>Encapsualtes the parameters for one error-correction block in one symbol version. * This includes the number of data codewords, and the number of times a block with these * parameters is used consecutively in the QR code version's format.</p> */ final class ECB { private $count; private $dataCodewords; function __construct($count, $dataCodewords) { $this->count = $count; $this->dataCodewords = $dataCodewords; } public function getCount() { return $this->count; } public function getDataCodewords() { return $this->dataCodewords; } //@Override public function toString() { die('Version ECB toString()'); // return parent::$versionNumber; } } BitMatrixParser.php 0000777 00000022445 14711055101 0010346 0 ustar 00 <?php /* * Copyright 2007 ZXing authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace Zxing\Qrcode\Decoder; use Zxing\FormatException; use Zxing\Common\BitMatrix; /** * @author Sean Owen */ final class BitMatrixParser { private $bitMatrix; private $parsedVersion; private $parsedFormatInfo; private $mirror; /** * @param bitMatrix {@link BitMatrix} to parse * * @throws FormatException if dimension is not >= 21 and 1 mod 4 */ public function __construct($bitMatrix) { $dimension = $bitMatrix->getHeight(); if ($dimension < 21 || ($dimension & 0x03) != 1) { throw FormatException::getFormatInstance(); } $this->bitMatrix = $bitMatrix; } /** * <p>Reads the bits in the {@link BitMatrix} representing the finder pattern in the * correct order in order to reconstruct the codewords bytes contained within the * QR Code.</p> * * @return bytes encoded within the QR Code * @throws FormatException if the exact number of bytes expected is not read */ public function readCodewords() { $formatInfo = $this->readFormatInformation(); $version = $this->readVersion(); // Get the data mask for the format used in this QR Code. This will exclude // some bits from reading as we wind through the bit matrix. $dataMask = DataMask::forReference($formatInfo->getDataMask()); $dimension = $this->bitMatrix->getHeight(); $dataMask->unmaskBitMatrix($this->bitMatrix, $dimension); $functionPattern = $version->buildFunctionPattern(); $readingUp = true; if ($version->getTotalCodewords()) { $result = fill_array(0, $version->getTotalCodewords(), 0); } else { $result = []; } $resultOffset = 0; $currentByte = 0; $bitsRead = 0; // Read columns in pairs, from right to left for ($j = $dimension - 1; $j > 0; $j -= 2) { if ($j == 6) { // Skip whole column with vertical alignment pattern; // saves time and makes the other code proceed more cleanly $j--; } // Read alternatingly from bottom to top then top to bottom for ($count = 0; $count < $dimension; $count++) { $i = $readingUp ? $dimension - 1 - $count : $count; for ($col = 0; $col < 2; $col++) { // Ignore bits covered by the function pattern if (!$functionPattern->get($j - $col, $i)) { // Read a bit $bitsRead++; $currentByte <<= 1; if ($this->bitMatrix->get($j - $col, $i)) { $currentByte |= 1; } // If we've made a whole byte, save it off if ($bitsRead == 8) { $result[$resultOffset++] = $currentByte; //(byte) $bitsRead = 0; $currentByte = 0; } } } } $readingUp ^= true; // readingUp = !readingUp; // switch directions } if ($resultOffset != $version->getTotalCodewords()) { throw FormatException::getFormatInstance(); } return $result; } /** * <p>Reads format information from one of its two locations within the QR Code.</p> * * @return {@link FormatInformation} encapsulating the QR Code's format info * @throws FormatException if both format information locations cannot be parsed as * the valid encoding of format information */ public function readFormatInformation() { if ($this->parsedFormatInfo != null) { return $this->parsedFormatInfo; } // Read top-left format info bits $formatInfoBits1 = 0; for ($i = 0; $i < 6; $i++) { $formatInfoBits1 = $this->copyBit($i, 8, $formatInfoBits1); } // .. and skip a bit in the timing pattern ... $formatInfoBits1 = $this->copyBit(7, 8, $formatInfoBits1); $formatInfoBits1 = $this->copyBit(8, 8, $formatInfoBits1); $formatInfoBits1 = $this->copyBit(8, 7, $formatInfoBits1); // .. and skip a bit in the timing pattern ... for ($j = 5; $j >= 0; $j--) { $formatInfoBits1 = $this->copyBit(8, $j, $formatInfoBits1); } // Read the top-right/bottom-left pattern too $dimension = $this->bitMatrix->getHeight(); $formatInfoBits2 = 0; $jMin = $dimension - 7; for ($j = $dimension - 1; $j >= $jMin; $j--) { $formatInfoBits2 = $this->copyBit(8, $j, $formatInfoBits2); } for ($i = $dimension - 8; $i < $dimension; $i++) { $formatInfoBits2 = $this->copyBit($i, 8, $formatInfoBits2); } $parsedFormatInfo = FormatInformation::decodeFormatInformation($formatInfoBits1, $formatInfoBits2); if ($parsedFormatInfo != null) { return $parsedFormatInfo; } throw FormatException::getFormatInstance(); } private function copyBit($i, $j, $versionBits) { $bit = $this->mirror ? $this->bitMatrix->get($j, $i) : $this->bitMatrix->get($i, $j); return $bit ? ($versionBits << 1) | 0x1 : $versionBits << 1; } /** * <p>Reads version information from one of its two locations within the QR Code.</p> * * @return {@link Version} encapsulating the QR Code's version * @throws FormatException if both version information locations cannot be parsed as * the valid encoding of version information */ public function readVersion() { if ($this->parsedVersion != null) { return $this->parsedVersion; } $dimension = $this->bitMatrix->getHeight(); $provisionalVersion = ($dimension - 17) / 4; if ($provisionalVersion <= 6) { return Version::getVersionForNumber($provisionalVersion); } // Read top-right version info: 3 wide by 6 tall $versionBits = 0; $ijMin = $dimension - 11; for ($j = 5; $j >= 0; $j--) { for ($i = $dimension - 9; $i >= $ijMin; $i--) { $versionBits = $this->copyBit($i, $j, $versionBits); } } $theParsedVersion = Version::decodeVersionInformation($versionBits); if ($theParsedVersion != null && $theParsedVersion->getDimensionForVersion() == $dimension) { $this->parsedVersion = $theParsedVersion; return $theParsedVersion; } // Hmm, failed. Try bottom left: 6 wide by 3 tall $versionBits = 0; for ($i = 5; $i >= 0; $i--) { for ($j = $dimension - 9; $j >= $ijMin; $j--) { $versionBits = $this->copyBit($i, $j, $versionBits); } } $theParsedVersion = Version::decodeVersionInformation($versionBits); if ($theParsedVersion != null && $theParsedVersion->getDimensionForVersion() == $dimension) { $this->parsedVersion = $theParsedVersion; return $theParsedVersion; } throw FormatException::getFormatInstance(); } /** * Revert the mask removal done while reading the code words. The bit matrix should revert to its original state. */ public function remask() { if ($this->parsedFormatInfo == null) { return; // We have no format information, and have no data mask } $dataMask = DataMask::forReference($this->parsedFormatInfo->getDataMask()); $dimension = $this->bitMatrix->getHeight(); $dataMask->unmaskBitMatrix($this->bitMatrix, $dimension); } /** * Prepare the parser for a mirrored operation. * This flag has effect only on the {@link #readFormatInformation()} and the * {@link #readVersion()}. Before proceeding with {@link #readCodewords()} the * {@link #mirror()} method should be called. * * @param mirror Whether to read version and format information mirrored. */ public function setMirror($mirror) { $parsedVersion = null; $parsedFormatInfo = null; $this->mirror = $mirror; } /** Mirror the bit matrix in order to attempt a second reading. */ public function mirror() { for ($x = 0; $x < $this->bitMatrix->getWidth(); $x++) { for ($y = $x + 1; $y < $this->bitMatrix->getHeight(); $y++) { if ($this->bitMatrix->get($x, $y) != $this->bitMatrix->get($y, $x)) { $this->bitMatrix->flip($y, $x); $this->bitMatrix->flip($x, $y); } } } } } DataBlock.php 0000777 00000011717 14711055101 0007112 0 ustar 00 <?php /* * Copyright 2007 ZXing authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace Zxing\Qrcode\Decoder; /** * <p>Encapsulates a block of data within a QR Code. QR Codes may split their data into * multiple blocks, each of which is a unit of data and error-correction codewords. Each * is represented by an instance of this class.</p> * * @author Sean Owen */ final class DataBlock { private $numDataCodewords; private $codewords; //byte[] private function __construct($numDataCodewords, $codewords) { $this->numDataCodewords = $numDataCodewords; $this->codewords = $codewords; } /** * <p>When QR Codes use multiple data blocks, they are actually interleaved. * That is, the first byte of data block 1 to n is written, then the second bytes, and so on. This * method will separate the data into original blocks.</p> * * @param rawCodewords bytes as read directly from the QR Code * @param version version of the QR Code * @param ecLevel error-correction level of the QR Code * * @return array DataBlocks containing original bytes, "de-interleaved" from representation in the * QR Code */ public static function getDataBlocks($rawCodewords, $version, $ecLevel) { if (count($rawCodewords) != $version->getTotalCodewords()) { throw new \InvalidArgumentException(); } // Figure out the number and size of data blocks used by this version and // error correction level $ecBlocks = $version->getECBlocksForLevel($ecLevel); // First count the total number of data blocks $totalBlocks = 0; $ecBlockArray = $ecBlocks->getECBlocks(); foreach ($ecBlockArray as $ecBlock) { $totalBlocks += $ecBlock->getCount(); } // Now establish DataBlocks of the appropriate size and number of data codewords $result = [];//new DataBlock[$totalBlocks]; $numResultBlocks = 0; foreach ($ecBlockArray as $ecBlock) { $ecBlockCount = $ecBlock->getCount(); for ($i = 0; $i < $ecBlockCount; $i++) { $numDataCodewords = $ecBlock->getDataCodewords(); $numBlockCodewords = $ecBlocks->getECCodewordsPerBlock() + $numDataCodewords; $result[$numResultBlocks++] = new DataBlock($numDataCodewords, fill_array(0, $numBlockCodewords, 0)); } } // All blocks have the same amount of data, except that the last n // (where n may be 0) have 1 more byte. Figure out where these start. $shorterBlocksTotalCodewords = count($result[0]->codewords); $longerBlocksStartAt = count($result) - 1; while ($longerBlocksStartAt >= 0) { $numCodewords = count($result[$longerBlocksStartAt]->codewords); if ($numCodewords == $shorterBlocksTotalCodewords) { break; } $longerBlocksStartAt--; } $longerBlocksStartAt++; $shorterBlocksNumDataCodewords = $shorterBlocksTotalCodewords - $ecBlocks->getECCodewordsPerBlock(); // The last elements of result may be 1 element longer; // first fill out as many elements as all of them have $rawCodewordsOffset = 0; for ($i = 0; $i < $shorterBlocksNumDataCodewords; $i++) { for ($j = 0; $j < $numResultBlocks; $j++) { $result[$j]->codewords[$i] = $rawCodewords[$rawCodewordsOffset++]; } } // Fill out the last data block in the longer ones for ($j = $longerBlocksStartAt; $j < $numResultBlocks; $j++) { $result[$j]->codewords[$shorterBlocksNumDataCodewords] = $rawCodewords[$rawCodewordsOffset++]; } // Now add in error correction blocks $max = count($result[0]->codewords); for ($i = $shorterBlocksNumDataCodewords; $i < $max; $i++) { for ($j = 0; $j < $numResultBlocks; $j++) { $iOffset = $j < $longerBlocksStartAt ? $i : $i + 1; $result[$j]->codewords[$iOffset] = $rawCodewords[$rawCodewordsOffset++]; } } return $result; } public function getNumDataCodewords() { return $this->numDataCodewords; } public function getCodewords() { return $this->codewords; } } FormatInformation.php 0000777 00000014502 14711055101 0010717 0 ustar 00 <?php /* * Copyright 2007 ZXing authors * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ namespace Zxing\Qrcode\Decoder; /** * <p>Encapsulates a QR Code's format information, including the data mask used and * error correction level.</p> * * @author Sean Owen * @see DataMask * @see ErrorCorrectionLevel */ final class FormatInformation { public static $FORMAT_INFO_MASK_QR; /** * See ISO 18004:2006, Annex C, Table C.1 */ public static $FORMAT_INFO_DECODE_LOOKUP; /** * Offset i holds the number of 1 bits in the binary representation of i */ private static $BITS_SET_IN_HALF_BYTE; private $errorCorrectionLevel; private $dataMask; private function __construct($formatInfo) { // Bits 3,4 $this->errorCorrectionLevel = ErrorCorrectionLevel::forBits(($formatInfo >> 3) & 0x03); // Bottom 3 bits $this->dataMask = ($formatInfo & 0x07);//(byte) } public static function Init() { self::$FORMAT_INFO_MASK_QR = 0x5412; self::$BITS_SET_IN_HALF_BYTE = [0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4]; self::$FORMAT_INFO_DECODE_LOOKUP = [ [0x5412, 0x00], [0x5125, 0x01], [0x5E7C, 0x02], [0x5B4B, 0x03], [0x45F9, 0x04], [0x40CE, 0x05], [0x4F97, 0x06], [0x4AA0, 0x07], [0x77C4, 0x08], [0x72F3, 0x09], [0x7DAA, 0x0A], [0x789D, 0x0B], [0x662F, 0x0C], [0x6318, 0x0D], [0x6C41, 0x0E], [0x6976, 0x0F], [0x1689, 0x10], [0x13BE, 0x11], [0x1CE7, 0x12], [0x19D0, 0x13], [0x0762, 0x14], [0x0255, 0x15], [0x0D0C, 0x16], [0x083B, 0x17], [0x355F, 0x18], [0x3068, 0x19], [0x3F31, 0x1A], [0x3A06, 0x1B], [0x24B4, 0x1C], [0x2183, 0x1D], [0x2EDA, 0x1E], [0x2BED, 0x1F], ]; } /** * @param maskedFormatInfo1 ; format info indicator, with mask still applied * @param maskedFormatInfo2 ; second copy of same info; both are checked at the same time * to establish best match * * @return information about the format it specifies, or {@code null} * if doesn't seem to match any known pattern */ public static function decodeFormatInformation($maskedFormatInfo1, $maskedFormatInfo2) { $formatInfo = self::doDecodeFormatInformation($maskedFormatInfo1, $maskedFormatInfo2); if ($formatInfo != null) { return $formatInfo; } // Should return null, but, some QR codes apparently // do not mask this info. Try again by actually masking the pattern // first return self::doDecodeFormatInformation($maskedFormatInfo1 ^ self::$FORMAT_INFO_MASK_QR, $maskedFormatInfo2 ^ self::$FORMAT_INFO_MASK_QR); } private static function doDecodeFormatInformation($maskedFormatInfo1, $maskedFormatInfo2) { // Find the int in FORMAT_INFO_DECODE_LOOKUP with fewest bits differing $bestDifference = PHP_INT_MAX; $bestFormatInfo = 0; foreach (self::$FORMAT_INFO_DECODE_LOOKUP as $decodeInfo) { $targetInfo = $decodeInfo[0]; if ($targetInfo == $maskedFormatInfo1 || $targetInfo == $maskedFormatInfo2) { // Found an exact match return new FormatInformation($decodeInfo[1]); } $bitsDifference = self::numBitsDiffering($maskedFormatInfo1, $targetInfo); if ($bitsDifference < $bestDifference) { $bestFormatInfo = $decodeInfo[1]; $bestDifference = $bitsDifference; } if ($maskedFormatInfo1 != $maskedFormatInfo2) { // also try the other option $bitsDifference = self::numBitsDiffering($maskedFormatInfo2, $targetInfo); if ($bitsDifference < $bestDifference) { $bestFormatInfo = $decodeInfo[1]; $bestDifference = $bitsDifference; } } } // Hamming distance of the 32 masked codes is 7, by construction, so <= 3 bits // differing means we found a match if ($bestDifference <= 3) { return new FormatInformation($bestFormatInfo); } return null; } public static function numBitsDiffering($a, $b) { $a ^= $b; // a now has a 1 bit exactly where its bit differs with b's // Count bits set quickly with a series of lookups: return self::$BITS_SET_IN_HALF_BYTE[$a & 0x0F] + self::$BITS_SET_IN_HALF_BYTE[(int)(uRShift($a, 4) & 0x0F)] + self::$BITS_SET_IN_HALF_BYTE[(uRShift($a, 8) & 0x0F)] + self::$BITS_SET_IN_HALF_BYTE[(uRShift($a, 12) & 0x0F)] + self::$BITS_SET_IN_HALF_BYTE[(uRShift($a, 16) & 0x0F)] + self::$BITS_SET_IN_HALF_BYTE[(uRShift($a, 20) & 0x0F)] + self::$BITS_SET_IN_HALF_BYTE[(uRShift($a, 24) & 0x0F)] + self::$BITS_SET_IN_HALF_BYTE[(uRShift($a, 28) & 0x0F)]; } public function getErrorCorrectionLevel() { return $this->errorCorrectionLevel; } public function getDataMask() { return $this->dataMask; } //@Override public function hashCode() { return ($this->errorCorrectionLevel->ordinal() << 3) | (int)($this->dataMask); } //@Override public function equals($o) { if (!($o instanceof FormatInformation)) { return false; } $other = $o; return $this->errorCorrectionLevel == $other->errorCorrectionLevel && $this->dataMask == $other->dataMask; } } FormatInformation::Init();
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