function GDToolkit::checkAvifSupport

Checks if AVIF can encode image.

This method tries to create an AVIF image and save it to disk via imageavif(). If that fails, it's likely a codec missing, or the function was disabled. This is an expensive operation to run, so we cache its result.

Return value

bool TRUE if AVIF is fully supported, FALSE otherwise.

File

core/modules/system/src/Plugin/ImageToolkit/GDToolkit.php, line 555

Class

GDToolkit

Defines the GD2 toolkit for image manipulation within Drupal.

Namespace

Code

protected function checkAvifSupport() : bool {
    static $supported = NULL;
    if ($supported !== NULL) {
        return $supported;
    }
    $tempFile = fopen('php://memory', 'r+');
    $supported = imageavif(imagecreatetruecolor(1, 1), $tempFile, 0, 10) && fstat($tempFile)['size'] > 0;
    fclose($tempFile);
    return $supported;
}