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458 lines
28 KiB
458 lines
28 KiB
<?php
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namespace Zxing\Common;
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final class BitMatrix
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{
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private $width;
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private $height;
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private $rowSize;
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private $bits;
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public function __construct($width, $height = false, $rowSize = false, $bits = false)
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{
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if (!$height) {
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$height = $width;
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}
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if (!$rowSize) {
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$rowSize = (int)(($width + 31) / 32);
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}
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if (!$bits) {
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$bits = fill_array(0, $rowSize * $height, 0);
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// [];//new int[rowSize * height];
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}
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$this->width = $width;
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$this->height = $height;
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$this->rowSize = $rowSize;
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$this->bits = $bits;
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}
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public static function parse($stringRepresentation, $setString, $unsetString)
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{
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if (!$stringRepresentation) {
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throw new \InvalidArgumentException();
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}
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$bits = [];
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$bitsPos = 0;
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$rowStartPos = 0;
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$rowLength = -1;
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$nRows = 0;
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$pos = 0;
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while ($pos < strlen($stringRepresentation)) {
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if ($stringRepresentation[$pos] == '\n' ||
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$stringRepresentation->{$pos} == '\r') {
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if ($bitsPos > $rowStartPos) {
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if ($rowLength == -1) {
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$rowLength = $bitsPos - $rowStartPos;
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} else if ($bitsPos - $rowStartPos != $rowLength) {
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throw new \InvalidArgumentException("row lengths do not match");
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}
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$rowStartPos = $bitsPos;
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$nRows++;
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}
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$pos++;
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} else if (substr($stringRepresentation, $pos, strlen($setString)) == $setString) {
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$pos += strlen($setString);
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$bits[$bitsPos] = true;
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$bitsPos++;
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} else if (substr($stringRepresentation, $pos + strlen($unsetString)) == $unsetString) {
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$pos += strlen($unsetString);
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$bits[$bitsPos] = false;
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$bitsPos++;
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} else {
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throw new \InvalidArgumentException(
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"illegal character encountered: " . substr($stringRepresentation, $pos));
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}
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}
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// no EOL at end?
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if ($bitsPos > $rowStartPos) {
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if ($rowLength == -1) {
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$rowLength = $bitsPos - $rowStartPos;
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} else if ($bitsPos - $rowStartPos != $rowLength) {
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throw new \InvalidArgumentException("row lengths do not match");
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}
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$nRows++;
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}
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$matrix = new BitMatrix($rowLength, $nRows);
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for ($i = 0; $i < $bitsPos; $i++) {
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if ($bits[$i]) {
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$matrix->set($i % $rowLength, $i / $rowLength);
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}
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}
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return $matrix;
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}
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/**
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* <p>Sets the given bit to true.</p>
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*
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* @param $x ; The horizontal component (i.e. which column)
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* @param $y ; The vertical component (i.e. which row)
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*/
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public function set($x, $y)
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{
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$offset = (int)($y * $this->rowSize + ($x / 32));
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if (!isset($this->bits[$offset])) {
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$this->bits[$offset] = 0;
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}
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//$this->bits[$offset] = $this->bits[$offset];
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// if($this->bits[$offset]>200748364){
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//$this->bits= 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92,0,0,0,0,0,0,0,0,0,0,0,0,8192,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,31744,0,0,0,0,0,0,0,0,0,0,0,0,31744,0,0,0,0,0,0,0,0,0,0,0,0,64512,0,0,0,0,0,0,0,0,0,0,0,0,15872,0,0,0,0,0,0,0,0,0,0,0,0,3584,0,0,0,0,0,0,0,0,0,0,0,0,7680,0,0,0,0,0,0,0,0,0,0,0,0,512,0,0,0,0,0,0,0,0,0,0,0,0,3968,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3840,0,0,0,0,0,0,0,0,0,0,0,0,1855,0,0,0,0,0,0,0,0,0,0,0,0,63,0,0,0,0,0,0,0,0,0,0,0,0,15,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,134217728,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,32,0,0,0,0,0,0,0,0,0,0,0,0,124,0,0,0,0,0,0,0,0,0,0,0,-260046848,63,0,0,0,0,0,0,0,0,0,0,0,-17301504,127,0,0,0,0,0,0,0,0,0,0,0,-524288,127,0,0,0,0,0,0,0,0,0,0,0,-262144,127,0,0,0,0,0,0,0,0,0,0,0,-262144,63,0,0,0,0,0,0,0,0,0,0,0,-262144,63,0,0,0,0,0,0,0,0,0,0,0,-262144,63,0,0,0,0,0,0,0,0,0,0,0,-262144,31,0,0,0,0,0,0,0,0,0,0,0,-262144,63,0,0,0,0,3,0,0,0,0,0,0,-262144,63,0,0,0,0,7,0,0,0,0,0,0,-262144,63,0,0,0,0,63,0,0,0,0,0,0,-262144,63,0,0,0,0,511,0,0,0,0,0,0,-524288,31,0,0,0,0,8191,0,0,0,0,0,0,-1048576,63,0,0,0,0,131071,0,0,0,0,0,0,-524288,63,0,0,0,0,262143,0,0,0,0,0,0,-524288,63,0,0,0,0,131071,0,0,0,0,0,0,-1048576,63,0,0,0,0,262143,0,0,0,0,0,0,-1048576,63,0,0,0,0,262143,0,0,0,0,0,0,-1048576,63,0,0,0,0,262143,0,0,0,0,0,0,-1048576,63,0,0,0,0,262143,0,0,0,0,0,0,-2097152,127,0,0,0,0,262143,0,0,0,0,0,0,-2097152,127,0,0,0,0,262143,0,0,0,0,0,0,-1048576,127,0,0,0,0,262143,0,0,0,0,0,0,-1048576,127,0,0,0,0,262143,0,0,0,0,0,0,-2097152,255,0,0,0,0,262143,0,0,0,0,0,0,-2097152,255,0,0,0,0,262142,0,0,0,0,0,0,-2097152,255,0,0,0,0,262142,0,0,0,0,0,0,-2097152,255,0,0,0,0,262142,0,0,0,0,0,0,-2097152,255,0,0,0,0,262140,0,0,0,0,0,0,-2097152,255,0,0,0,0,131068,0,0,0,0,0,0,-4194304,255,0,0,0,0,131068,0,0,0,0,0,0,-4194304,255,0,0,0,0,65528,0,0,0,0,0,0,-8388608,255,0,0,0,0,65528,0,0,0,0,0,0,-8388608,255,0,0,0,0,65528,0,0,0,0,0,0,-8388608,255,0,0,0,0,32760,0,0,0,0,0,0,-8388608,255,0,0,0,0,32760,0,0,0,0,0,0,-16777216,255,0,0,-2147483648,255,16368,0,0,0,0,0,0,-16777216,255,0,0,-536870912,1023,16368,0,0,0,0,0,0,-33554432,255,0,0,-16777216,4095,16352,0,0,0,0,0,0,-33554432,255,0,0,-8388608,262143,16352,0,0,0,0,0,0,-33554432,255,0,0,-1048576,2097151,16352,0,0,0,0,0,0,-67108864,255,0,0,-524288,8388607,16352,0,0,0,0,0,0,-67108864,255,0,0,-262144,16777215,16320,0,0,0,0,0,0,-67108864,255,0,0,-131072,16777215,100679648,0,0,0,0,0,0,-67108864,255,0,0,-16384,16776959,125861824,0,0,0,0,0,0,-134217728,255,0,0,-4096,16773121,62930880,0,0,0,0,0,0,-134217728,127,0,0,2147482624,16252928,32704,0,0,0,0,0,0,-134217728,127,0,0,268435200,14680064,16320,0,0,0,0,0,0,-134217728,127,0,0,134217600,0,32704,0,0,0,0,0,0,-33554432,127,0,1056964608,67108736,0,32704,0,0,0,0,0,0,-33554432,127,0,2130706432,33554368,0,65408,0,0,0,0,0,0,-33554432,127,0,-16777216,8388576,0,32640,0,0,0,0,0,0,-134217728,127,0,-16777216,2097136,0,32640,0,0,0,0,0,0,-134217728,63,0,-16776960,1048573,0,32640,0,0,0,0,0,0,-536870912,63,0,-16776448,1048575,0,32640,0,0,0,0,0,0,-536870912,63,0,-33553664,6291455,66752,32640,0,0,0,0,0,0,-536870912,63,0,2013266688,2097148,229376,32640,0,0,0,0,0,0,-536870912,63,0,256,4194300,229376,32640,0,0,0,0,0,0,-536870912,63,0,0,524280,196608,32512,0,0,8,0,0,0,-1073741824,63,0,0,-200,15,65280,0,0,24,0,0,0,-1073741824,63,0,0,-1867768,127,32512,0,0,56,0,0,0,-1073741824,63,0,0,-1056768,4095,32512,0,0,124,0,0,0,-1073741824,63,0,0,-1050624,8191,32512,0,0,508,0,0,0,-2147483648,31,0,0,-7866368,8191,32512,0,0,1020,0,0,0,-2147483648,31,0,0,-33030656,8095,32512,0,0,2046,0,0,0,-2147483648,63,0,0,-66586624,771,32512,0,0,4094,0,0,0,0,63,0,0,-134184960,1,32256,0,0,8190,0,0,0,0,63,0,0,1610612736,0,32256,0,0,16382,0,0,0,-2147483648,63,0,0,0,0,15872,0,0,32767,0,0,0,-2147483648,31,0,0,0,0,15872,0,-2147483648,65535,0,0,0,-2147483648,31,0,0,0,0,7680,0,0,65535,0,0,0,-2147483648,31,0,0,134217728,0,7680,0,-2147483648,65535,0,0,0,-2147483648,31,0,0,0,0,7680,0,-2147483648,65535,0,0,0,-2147483648,31,0,0,0,0,7680,0,-1073741824,65535,0,0,0,-2147483648,31,0,0,0,0,3072,0,-1073741824,65535,0,0,0,-2147483648,31,0,0,0,0,3072,0,-1073741824,65535,0,0,0,-2147483648,31,0,0,0,0,0,0,-2147483648,65535,0,0,0,-2147483648,31,0,0,0,0,0,0,-1073741824,65535,0,0,0,0,31,0,0,0,0,0,0,-1073741824,65535,0,0,0,0,31,0,0,0,0,0,0,-2147483648,65535,0,0,0,0,30,0,0,0,0,0,0,-1073741824,65535,0,0,0,0,30,0,0,0,0,0,0,-2147483648,65535,0,0,0,0,30,0,0,0,0,0,0,0,65535,0,0,0,0,28,0,0,0,0,0,0,0,65535,0,0,0,0,28,0,0,0,0,0,0,0,65535,0,0,0,0,28,0,0,0,0,0,0,0,65535,0,0,0,0,24,0,0,0,0,0,0,-2147483648,65535,0,0,0,0,0,0,0,0,0,0,0,-536870912,65535);//[$offset] |= intval32bits(1 << ($x & 0x1f));
|
|
$bob = $this->bits[$offset];
|
|
$bob |= 1 << ($x & 0x1f);
|
|
$this->bits[$offset] |= ($bob);
|
|
//$this->bits[$offset] = intval32bits($this->bits[$offset]);
|
|
|
|
//}
|
|
//16777216
|
|
}
|
|
|
|
public function _unset($x, $y)
|
|
{//было unset, php не позволяет использовать unset
|
|
$offset = (int)($y * $this->rowSize + ($x / 32));
|
|
$this->bits[$offset] &= ~(1 << ($x & 0x1f));
|
|
}
|
|
|
|
/**1 << (249 & 0x1f)
|
|
* <p>Flips the given bit.</p>
|
|
*
|
|
* @param $x ; The horizontal component (i.e. which column)
|
|
* @param $y ; The vertical component (i.e. which row)
|
|
*/
|
|
public function flip($x, $y)
|
|
{
|
|
$offset = $y * $this->rowSize + (int)($x / 32);
|
|
|
|
$this->bits[$offset] = ($this->bits[$offset] ^ (1 << ($x & 0x1f)));
|
|
}
|
|
|
|
/**
|
|
* Exclusive-or (XOR): Flip the bit in this {@code BitMatrix} if the corresponding
|
|
* mask bit is set.
|
|
*
|
|
* @param $mask ; XOR mask
|
|
*/
|
|
public function _xor($mask)
|
|
{//было xor, php не позволяет использовать xor
|
|
if ($this->width != $mask->getWidth() || $this->height != $mask->getHeight()
|
|
|| $this->rowSize != $mask->getRowSize()) {
|
|
throw new \InvalidArgumentException("input matrix dimensions do not match");
|
|
}
|
|
$rowArray = new BitArray($this->width / 32 + 1);
|
|
for ($y = 0; $y < $this->height; $y++) {
|
|
$offset = $y * $this->rowSize;
|
|
$row = $mask->getRow($y, $rowArray)->getBitArray();
|
|
for ($x = 0; $x < $this->rowSize; $x++) {
|
|
$this->bits[$offset + $x] ^= $row[$x];
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Clears all bits (sets to false).
|
|
*/
|
|
public function clear()
|
|
{
|
|
$max = count($this->bits);
|
|
for ($i = 0; $i < $max; $i++) {
|
|
$this->bits[$i] = 0;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* <p>Sets a square region of the bit matrix to true.</p>
|
|
*
|
|
* @param $left ; The horizontal position to begin at (inclusive)
|
|
* @param $top ; The vertical position to begin at (inclusive)
|
|
* @param $width ; The width of the region
|
|
* @param $height ; The height of the region
|
|
*/
|
|
public function setRegion($left, $top, $width, $height)
|
|
{
|
|
if ($top < 0 || $left < 0) {
|
|
throw new \InvalidArgumentException("Left and top must be nonnegative");
|
|
}
|
|
if ($height < 1 || $width < 1) {
|
|
throw new \InvalidArgumentException("Height and width must be at least 1");
|
|
}
|
|
$right = $left + $width;
|
|
$bottom = $top + $height;
|
|
if ($bottom > $this->height || $right > $this->width) { //> this.height || right > this.width
|
|
throw new \InvalidArgumentException("The region must fit inside the matrix");
|
|
}
|
|
for ($y = $top; $y < $bottom; $y++) {
|
|
$offset = $y * $this->rowSize;
|
|
for ($x = $left; $x < $right; $x++) {
|
|
$this->bits[$offset + (int)($x / 32)] = ($this->bits[$offset + (int)($x / 32)] |= 1 << ($x & 0x1f));
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Modifies this {@code BitMatrix} to represent the same but rotated 180 degrees
|
|
*/
|
|
public function rotate180()
|
|
{
|
|
$width = $this->getWidth();
|
|
$height = $this->getHeight();
|
|
$topRow = new BitArray($width);
|
|
$bottomRow = new BitArray($width);
|
|
for ($i = 0; $i < ($height + 1) / 2; $i++) {
|
|
$topRow = $this->getRow($i, $topRow);
|
|
$bottomRow = $this->getRow($height - 1 - $i, $bottomRow);
|
|
$topRow->reverse();
|
|
$bottomRow->reverse();
|
|
$this->setRow($i, $bottomRow);
|
|
$this->setRow($height - 1 - $i, $topRow);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return The width of the matrix
|
|
*/
|
|
public function getWidth()
|
|
{
|
|
return $this->width;
|
|
}
|
|
|
|
/**
|
|
* A fast method to retrieve one row of data from the matrix as a BitArray.
|
|
*
|
|
* @param $y ; The row to retrieve
|
|
* @param $row ; An optional caller-allocated BitArray, will be allocated if null or too small
|
|
*
|
|
* @return The resulting BitArray - this reference should always be used even when passing
|
|
* your own row
|
|
*/
|
|
public function getRow($y, $row)
|
|
{
|
|
if ($row == null || $row->getSize() < $this->width) {
|
|
$row = new BitArray($this->width);
|
|
} else {
|
|
$row->clear();
|
|
}
|
|
$offset = $y * $this->rowSize;
|
|
for ($x = 0; $x < $this->rowSize; $x++) {
|
|
$row->setBulk($x * 32, $this->bits[$offset + $x]);
|
|
}
|
|
|
|
return $row;
|
|
}
|
|
|
|
/**
|
|
* @param $y ; row to set
|
|
* @param $row ; {@link BitArray} to copy from
|
|
*/
|
|
public function setRow($y, $row)
|
|
{
|
|
$this->bits = arraycopy($row->getBitArray(), 0, $this->bits, $y * $this->rowSize, $this->rowSize);
|
|
}
|
|
|
|
/**
|
|
* This is useful in detecting the enclosing rectangle of a 'pure' barcode.
|
|
*
|
|
* @return {@code left,top,width,height} enclosing rectangle of all 1 bits, or null if it is all white
|
|
*/
|
|
public function getEnclosingRectangle()
|
|
{
|
|
$left = $this->width;
|
|
$top = $this->height;
|
|
$right = -1;
|
|
$bottom = -1;
|
|
|
|
for ($y = 0; $y < $this->height; $y++) {
|
|
for ($x32 = 0; $x32 < $this->rowSize; $x32++) {
|
|
$theBits = $this->bits[$y * $this->rowSize + $x32];
|
|
if ($theBits != 0) {
|
|
if ($y < $top) {
|
|
$top = $y;
|
|
}
|
|
if ($y > $bottom) {
|
|
$bottom = $y;
|
|
}
|
|
if ($x32 * 32 < $left) {
|
|
$bit = 0;
|
|
while (($theBits << (31 - $bit)) == 0) {
|
|
$bit++;
|
|
}
|
|
if (($x32 * 32 + $bit) < $left) {
|
|
$left = $x32 * 32 + $bit;
|
|
}
|
|
}
|
|
if ($x32 * 32 + 31 > $right) {
|
|
$bit = 31;
|
|
while ((sdvig3($theBits, $bit)) == 0) {//>>>
|
|
$bit--;
|
|
}
|
|
if (($x32 * 32 + $bit) > $right) {
|
|
$right = $x32 * 32 + $bit;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
$width = $right - $left;
|
|
$height = $bottom - $top;
|
|
|
|
if ($width < 0 || $height < 0) {
|
|
return null;
|
|
}
|
|
|
|
return [$left, $top, $width, $height];
|
|
}
|
|
|
|
/**
|
|
* This is useful in detecting a corner of a 'pure' barcode.
|
|
*
|
|
* @return {@code x,y} coordinate of top-left-most 1 bit, or null if it is all white
|
|
*/
|
|
public function getTopLeftOnBit()
|
|
{
|
|
$bitsOffset = 0;
|
|
while ($bitsOffset < count($this->bits) && $this->bits[$bitsOffset] == 0) {
|
|
$bitsOffset++;
|
|
}
|
|
if ($bitsOffset == count($this->bits)) {
|
|
return null;
|
|
}
|
|
$y = $bitsOffset / $this->rowSize;
|
|
$x = ($bitsOffset % $this->rowSize) * 32;
|
|
|
|
$theBits = $this->bits[$bitsOffset];
|
|
$bit = 0;
|
|
while (($theBits << (31 - $bit)) == 0) {
|
|
$bit++;
|
|
}
|
|
$x += $bit;
|
|
|
|
return [$x, $y];
|
|
}
|
|
|
|
public function getBottomRightOnBit()
|
|
{
|
|
$bitsOffset = count($this->bits) - 1;
|
|
while ($bitsOffset >= 0 && $this->bits[$bitsOffset] == 0) {
|
|
$bitsOffset--;
|
|
}
|
|
if ($bitsOffset < 0) {
|
|
return null;
|
|
}
|
|
|
|
$y = $bitsOffset / $this->rowSize;
|
|
$x = ($bitsOffset % $this->rowSize) * 32;
|
|
|
|
$theBits = $this->bits[$bitsOffset];
|
|
$bit = 31;
|
|
while ((sdvig3($theBits, $bit)) == 0) {//>>>
|
|
$bit--;
|
|
}
|
|
$x += $bit;
|
|
|
|
return [$x, $y];
|
|
}
|
|
|
|
/**
|
|
* @return The height of the matrix
|
|
*/
|
|
public function getHeight()
|
|
{
|
|
return $this->height;
|
|
}
|
|
|
|
/**
|
|
* @return The row size of the matrix
|
|
*/
|
|
public function getRowSize()
|
|
{
|
|
return $this->rowSize;
|
|
}
|
|
|
|
public function equals($o)
|
|
{
|
|
if (!($o instanceof BitMatrix)) {
|
|
return false;
|
|
}
|
|
$other = $o;
|
|
|
|
return $this->width == $other->width
|
|
&& $this->height == $other->height
|
|
&& $this->rowSize == $other->rowSize
|
|
&& $this->bits === $other->bits;
|
|
}
|
|
|
|
//@Override
|
|
|
|
public function hashCode()
|
|
{
|
|
$hash = $this->width;
|
|
$hash = 31 * $hash + $this->width;
|
|
$hash = 31 * $hash + $this->height;
|
|
$hash = 31 * $hash + $this->rowSize;
|
|
$hash = 31 * $hash + hashCode($this->bits);
|
|
|
|
return $hash;
|
|
}
|
|
|
|
//@Override
|
|
|
|
public function toString($setString = '', $unsetString = '', $lineSeparator = '')
|
|
{
|
|
if (!$setString || !$unsetString) {
|
|
return (string)'X ' . ' ';
|
|
}
|
|
if ($lineSeparator && $lineSeparator !== "\n") {
|
|
return $this->toString_($setString, $unsetString, $lineSeparator);
|
|
}
|
|
|
|
return (string)($setString . $unsetString . "\n");
|
|
}
|
|
|
|
public function toString_($setString, $unsetString, $lineSeparator)
|
|
{
|
|
//$result = new StringBuilder(height * (width + 1));
|
|
$result = '';
|
|
for ($y = 0; $y < $this->height; $y++) {
|
|
for ($x = 0; $x < $this->width; $x++) {
|
|
$result .= ($this->get($x, $y) ? $setString : $unsetString);
|
|
}
|
|
$result .= ($lineSeparator);
|
|
}
|
|
|
|
return (string)$result;
|
|
}
|
|
|
|
/**
|
|
* @deprecated call {@link #toString(String,String)} only, which uses \n line separator always
|
|
*/
|
|
// @Deprecated
|
|
/**
|
|
* <p>Gets the requested bit, where true means black.</p>
|
|
*
|
|
* @param $x ; The horizontal component (i.e. which column)
|
|
* @param $y ; The vertical component (i.e. which row)
|
|
*
|
|
* @return value of given bit in matrix
|
|
*/
|
|
public function get($x, $y)
|
|
{
|
|
|
|
$offset = (int)($y * $this->rowSize + ($x / 32));
|
|
if (!isset($this->bits[$offset])) {
|
|
$this->bits[$offset] = 0;
|
|
}
|
|
|
|
// return (($this->bits[$offset] >> ($x & 0x1f)) & 1) != 0;
|
|
return (uRShift($this->bits[$offset], ($x & 0x1f)) & 1) != 0;//было >>> вместо >>, не знаю как эмулировать беззнаковый сдвиг
|
|
}
|
|
|
|
// @Override
|
|
|
|
public function _clone()
|
|
{
|
|
return new BitMatrix($this->width, $this->height, $this->rowSize, $this->bits);
|
|
}
|
|
}
|
|
|