1 files changed, 203 insertions, 0 deletions
diff --git a/vendor/chillerlan/php-qrcode/src/Data/MaskPatternTester.php b/vendor/chillerlan/php-qrcode/src/Data/MaskPatternTester.php
new file mode 100644
index 000000000..8dfd24180
--- /dev/null
+++ b/vendor/chillerlan/php-qrcode/src/Data/MaskPatternTester.php
@@ -0,0 +1,203 @@
+<?php
+/**
+ * Class MaskPatternTester
+ *
+ * @filesource   MaskPatternTester.php
+ * @created      22.11.2017
+ * @package      chillerlan\QRCode\Data
+ * @author       Smiley <[email protected]>
+ * @copyright    2017 Smiley
+ * @license      MIT
+ */
+
+namespace chillerlan\QRCode\Data;
+
+use function abs, call_user_func_array;
+
+/**
+ * The sole purpose of this class is to receive a QRMatrix object and run the pattern tests on it.
+ *
+ * @link http://www.thonky.com/qr-code-tutorial/data-masking
+ */
+class MaskPatternTester{
+
+	/**
+	 * @var \chillerlan\QRCode\Data\QRMatrix
+	 */
+	protected $matrix;
+
+	/**
+	 * @var int
+	 */
+	protected $moduleCount;
+
+	/**
+	 * Receives the matrix an sets the module count
+	 *
+	 * @see \chillerlan\QRCode\QROptions::$maskPattern
+	 * @see \chillerlan\QRCode\Data\QRMatrix::$maskPattern
+	 * @see \chillerlan\QRCode\QRCode::getBestMaskPattern()
+	 *
+	 * @param \chillerlan\QRCode\Data\QRMatrix $matrix
+	 */
+	public function __construct(QRMatrix $matrix){
+		$this->matrix      = $matrix;
+		$this->moduleCount = $this->matrix->size();
+	}
+
+	/**
+	 * Returns the penalty for the given mask pattern
+	 *
+	 * @see \chillerlan\QRCode\QROptions::$maskPattern
+	 * @see \chillerlan\QRCode\Data\QRMatrix::$maskPattern
+	 * @see \chillerlan\QRCode\QRCode::getBestMaskPattern()
+	 *
+	 * @return int
+	 */
+	public function testPattern():int{
+		$penalty  = 0;
+
+		for($level = 1; $level <= 4; $level++){
+			$penalty += call_user_func_array([$this, 'testLevel'.$level], [$this->matrix->matrix(true)]);
+		}
+
+		return (int)$penalty;
+	}
+
+	/**
+	 * Checks for each group of five or more same-colored modules in a row (or column)
+	 *
+	 * @return int
+	 */
+	protected function testLevel1(array $m):int{
+		$penalty = 0;
+
+		foreach($m as $y => $row){
+			foreach($row as $x => $val){
+				$count = 0;
+
+				for($ry = -1; $ry <= 1; $ry++){
+
+					if($y + $ry < 0 || $this->moduleCount <= $y + $ry){
+						continue;
+					}
+
+					for($rx = -1; $rx <= 1; $rx++){
+
+						if(($ry === 0 && $rx === 0) || (($x + $rx) < 0 || $this->moduleCount <= ($x + $rx))){
+							continue;
+						}
+
+						if($m[$y + $ry][$x + $rx] === $val){
+							$count++;
+						}
+
+					}
+				}
+
+				if($count > 5){
+					$penalty += (3 + $count - 5);
+				}
+
+			}
+		}
+
+		return $penalty;
+	}
+
+	/**
+	 * Checks for each 2x2 area of same-colored modules in the matrix
+	 *
+	 * @return int
+	 */
+	protected function testLevel2(array $m):int{
+		$penalty = 0;
+
+		foreach($m as $y => $row){
+
+			if($y > ($this->moduleCount - 2)){
+				break;
+			}
+
+			foreach($row as $x => $val){
+
+				if($x > ($this->moduleCount - 2)){
+					break;
+				}
+
+				if(
+					   $val === $m[$y][$x + 1]
+					&& $val === $m[$y + 1][$x]
+					&& $val === $m[$y + 1][$x + 1]
+				){
+					$penalty++;
+				}
+			}
+		}
+
+		return 3 * $penalty;
+	}
+
+	/**
+	 * Checks if there are patterns that look similar to the finder patterns (1:1:3:1:1 ratio)
+	 *
+	 * @return int
+	 */
+	protected function testLevel3(array $m):int{
+		$penalties = 0;
+
+		foreach($m as $y => $row){
+			foreach($row as $x => $val){
+
+				if(
+					($x + 6) < $this->moduleCount
+					&&  $val
+					&& !$m[$y][$x + 1]
+					&&  $m[$y][$x + 2]
+					&&  $m[$y][$x + 3]
+					&&  $m[$y][$x + 4]
+					&& !$m[$y][$x + 5]
+					&&  $m[$y][$x + 6]
+				){
+					$penalties++;
+				}
+
+				if(
+					($y + 6) < $this->moduleCount
+					&&  $val
+					&& !$m[$y + 1][$x]
+					&&  $m[$y + 2][$x]
+					&&  $m[$y + 3][$x]
+					&&  $m[$y + 4][$x]
+					&& !$m[$y + 5][$x]
+					&&  $m[$y + 6][$x]
+				){
+					$penalties++;
+				}
+
+			}
+		}
+
+		return $penalties * 40;
+	}
+
+	/**
+	 * Checks if more than half of the modules are dark or light, with a larger penalty for a larger difference
+	 *
+	 * @return float
+	 */
+	protected function testLevel4(array $m):float{
+		$count = 0;
+
+		foreach($m as $y => $row){
+			foreach($row as $x => $val){
+				if($val){
+					$count++;
+				}
+			}
+		}
+
+		return (abs(100 * $count / $this->moduleCount / $this->moduleCount - 50) / 5) * 10;
+	}
+
+}