protected function GDToolkitWebP::load in Picture 8

Loads a GD resource from a file.

Return value

bool TRUE or FALSE, based on success.

Overrides GDToolkit::load

File

src/Plugin/ImageToolkit/GDToolkitWebP.php, line 29

Contains \Drupal\system\Plugin\ImageToolkit\GDToolkit.

Class

GDToolkitWebP

Defines the GD2 toolkit for image manipulation within Drupal.

Namespace

Drupal\picture\Plugin\ImageToolkit

Code

protected function load() {

  // Return immediately if the image file is not valid.
  if (!$this
    ->isValid()) {
    return FALSE;
  }
  switch ($this
    ->getType()) {
    case GDToolkitWebP::IMAGETYPE_WEBP:
      $function = 'imagecreatefromwebp';
      break;
    default:
      $function = 'imagecreatefrom' . image_type_to_extension($this
        ->getType(), FALSE);
  }
  if (function_exists($function) && ($resource = $function($this
    ->getImage()
    ->getSource()))) {
    $this
      ->setResource($resource);
    if (imageistruecolor($resource)) {
      return TRUE;
    }
    else {

      // Convert indexed images to true color, so that filters work
      // correctly and don't result in unnecessary dither.
      $new_image = $this
        ->createTmp($this
        ->getType(), imagesx($resource), imagesy($resource));
      if ($ret = (bool) $new_image) {
        imagecopy($new_image, $resource, 0, 0, 0, 0, imagesx($resource), imagesy($resource));
        imagedestroy($resource);
        $this
          ->setResource($new_image);
      }
      return $ret;
    }
  }
  return FALSE;
}