Ticket #13461: 13461.4.patch

wp-includes/media.php

@@ -395 +395 @@
 /**
  * Scale down an image to fit a particular size and save a new copy of the image.
  *
- * The PNG transparency will be preserved using the function, as well as the
+ * The PNG and GIF transparency will be preserved using the function, as well as the
  * image type. If the file going in is PNG, then the resized image is going to
  * be PNG. The only supported image types are PNG, GIF, and JPEG.
  *
@@ -1021 +1021 @@
  * @param int $height Image height
  * @return image resource
  */
-function wp_imagecreatetruecolor($width, $height) {
-        $img = imagecreatetruecolor($width, $height);
-        if ( is_resource($img) && function_exists('imagealphablending') && function_exists('imagesavealpha') ) {
-                imagealphablending($img, false);
-                imagesavealpha($img, true);
+function wp_imagecreatetruecolor( $width, $height ) {
+        $img = imagecreatetruecolor( $width, $height );
+        if ( is_resource( $img ) && function_exists( 'imagealphablending' ) && function_exists( 'imagesavealpha' ) ) {
+                if ( function_exists( 'imagecolortransparent' ) && function_exists( 'imagecolorallocatealpha' ) )
+                        imagecolortransparent( $img, imagecolorallocatealpha( $img, 0, 0, 0, 127 ) );
+                imagealphablending( $img, false );
+                imagesavealpha( $img, true );
         }
         return $img;
 }