class.ilImageMagickRenderer.php

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<?php
class ilImageMagickRenderer extends ilFilePreviewRenderer
{
    // constants
    private const SUPPORTED_FORMATS = "jpg,jpeg,jp2,png,gif,bmp,tif,tiff,cur,ico,pict,tga,psd";

    // variables
    private static ?array $supported_formats = null;

    public function getSupportedFileFormats(): array
    {
        // build formats only once
        if (!isset(self::$supported_formats)) {
            self::$supported_formats = self::evaluateSupportedFileFormats();
        }

        return self::$supported_formats;
    }

    public static function evaluateSupportedFileFormats(): array
    {
        return explode(",", self::SUPPORTED_FORMATS) ?? [];
    }

    protected function renderImages(\ilObject $obj): array
    {
        $filepath = $obj->getFile();
        $tmpPath = $this->prepareFileForExec($filepath);
        $isTemporary = $tmpPath !== $filepath;
        return array(new ilRenderedImage($tmpPath, $isTemporary));
    }
}