From 417a0cb959504cd284e68d70e034511ca4bac7fc Mon Sep 17 00:00:00 2001
From: Fluffy-Bean <michal-gdula@protonmail.com>
Date: Fri, 22 Jul 2022 18:09:50 +0100
Subject: [PATCH] Fixed Gif previews

---
 upload.php | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/upload.php b/upload.php
index e5c72de..d8f7b9b 100644
--- a/upload.php
+++ b/upload.php
@@ -68,7 +68,22 @@
       if (move_uploaded_file($_FILES['image']['tmp_name'], $image_path)) {
         // Make thumbnail
         $image_thumbnail = new Imagick($image_path);
-        $image_thumbnail->resizeImage(300,null,null,1,null);
+        // Get image format
+        $image_format = $image_thumbnail->getImageFormat();
+        // If image is gif
+        if ($image_format == 'GIF') {
+          $image_thumbnail = $image_thumbnail->coalesceImages();
+          foreach ($image_thumbnail as $frame) {
+            $frame->thumbnailImage(300, null);
+            $frame->setImagePage(300, null, 0, 0);
+          }
+          // Put image back together
+          $image_thumbnail = $image_thumbnail->deconstructImages();
+        }else{
+          // Image not gif
+          $image_thumbnail->resizeImage(300,null,null,1,null);
+        }
+        // Save image
         $image_thumbnail->writeImage("images/thumbnails/".$image_basename);
 
         header("Location:upload.php?r=success");