diff options
Diffstat (limited to 'lib/Service/BlurService.php')
-rw-r--r-- | lib/Service/BlurService.php | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/lib/Service/BlurService.php b/lib/Service/BlurService.php new file mode 100644 index 00000000..6d1c241a --- /dev/null +++ b/lib/Service/BlurService.php @@ -0,0 +1,58 @@ +<?php + +declare(strict_types=1); + +/** + * Nextcloud - Social Support + * + * This file is licensed under the Affero General Public License version 3 or + * later. See the COPYING file. + * + * @author Maxence Lange <maxence@artificial-owl.com> + * @copyright 2023, Maxence Lange <maxence@artificial-owl.com> + * @license GNU AGPL version 3 or any later version + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as + * published by the Free Software Foundation, either version 3 of the + * License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + */ + +namespace OCA\Social\Service; + +use GdImage; +use kornrunner\Blurhash\Blurhash; + +class BlurService { + + public function __construct() { + } + + public function generateBlurHash(GdImage $image): string { + $width = imagesx($image); + $height = imagesy($image); + + $pixels = []; + for ($y = 0; $y < $height; ++$y) { + $row = []; + for ($x = 0; $x < $width; ++$x) { + $index = imagecolorat($image, $x, $y); + $colors = imagecolorsforindex($image, $index); + + $row[] = [$colors['red'], $colors['green'], $colors['blue']]; + } + $pixels[] = $row; + } + + return Blurhash::encode($pixels, 4, 3); + } +} |