PhpAidc\LabelPrinter\Emulation\PbmCodec::encode()

Complexity

Conditions	5
Paths	7

Size

Total Lines	28
Code Lines	14

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	30

Importance

Changes	1
Bugs	0	Features	0

<?php
    public function encode(): string
    {
        foreach ((new \ImagickPixelIterator($this->image)) as $y => $row) {
            $bit = $byte = 0;

            /** @var \ImagickPixel[] $row */
            foreach ($row as $x => $pixel) {
                $color = $pixel->getColor();

                $value = (int) (($color['r'] + $color['g'] + $color['b']) / 3) >> 7;

                $bit = $x % 8;

                $byte = ($y * $this->bytesPerRow) + \intdiv($x, 8);

                if ($value === 0) {
                    $this->buffer[$byte] &= ~(1 << (7 - $bit));
                } else {
                    $this->buffer[$byte] |= (1 << (7 - $bit));
                }
            }

            if ($bit !== 7) {
                $this->buffer[$byte] ^= (1 << (7 - $bit)) - 1;
            }
        }

        return \pack('C*', ...$this->buffer);
    }