add imagick clear

Signed-off-by: Simon L <szaimen@e.mail.de>

apps/theming/lib/IconBuilder.php

@@ -89,9 +89,9 @@ class IconBuilder {
 			$favicon->addImage($clone);
 
 			$data = $favicon->getImagesBlob();
-			$favicon->destroy();
-			$icon->destroy();
-			$clone->destroy();
+			$favicon->clear();
+			$icon->clear();
+			$clone->clear();
 			return $data;
 		} catch (\ImagickException $e) {
 			return false;
@@ -161,7 +161,7 @@ class IconBuilder {
 			$x = $tmp->getImageWidth();
 			$y = $tmp->getImageHeight();
 			$res = $tmp->getImageResolution();
-			$tmp->destroy();
+			$tmp->clear();
 
 			if ($x > $y) {
 				$max = $x;
@@ -218,7 +218,7 @@ class IconBuilder {
 		}
 		$finalIconFile->resizeImage($size, $size, $filter, 1, false);
 
-		$appIconFile->destroy();
+		$appIconFile->clear();
 		return $finalIconFile;
 	}
 

apps/theming/lib/ImageManager.php

@@ -130,6 +130,7 @@ class ImageManager {
 					$finalIconFile->setImageFormat('png32');
 					$pngFile = $folder->newFile($key . '.png');
 					$pngFile->putContent($finalIconFile->getImageBlob());
+					$finalIconFile->clear();
 					return $pngFile;
 				} catch (\ImagickException $e) {
 					$this->logger->info('The image was requested to be no SVG file, but converting it to PNG failed: ' . $e->getMessage());

lib/private/Avatar/Avatar.php

@@ -139,6 +139,7 @@ abstract class Avatar implements IAvatar {
 			// $avatar->setImageFormat('png');
 			$image = new \OCP\Image();
 			$image->loadFromData((string)$avatar);
+			$avatar->clear();
 			return $image->data();
 		} catch (\Exception $e) {
 			return null;

lib/private/Preview/SVG.php

@@ -70,6 +70,7 @@ class SVG extends ProviderV2 {
 		//new image object
 		$image = new \OCP\Image();
 		$image->loadFromData((string) $svg);
+		$svg->clear();
 		//check if image object is valid
 		if ($image->valid()) {
 			$image->scaleDownToFit($maxX, $maxY);