function Desaturate::execute

File

core/modules/system/src/Plugin/ImageToolkit/Operation/gd/Desaturate.php, line 29

Class

Desaturate

Defines GD2 Desaturate operation.

Namespace

Code

protected function execute(array $arguments) {
  // PHP installations using non-bundled GD do not have imagefilter.
  if (!function_exists('imagefilter')) {
    $this->logger
      ->notice("The image '@file' could not be desaturated because the imagefilter() function is not available in this PHP installation.", [
      '@file' => $this->getToolkit()
        ->getSource(),
    ]);
    return FALSE;
  }
  return imagefilter($this->getToolkit()
    ->getResource(), IMG_FILTER_GRAYSCALE);
}