From: Morris Jobke <hey@morrisjobke.de>
Date: Thu, 10 Sep 2020 10:07:56 +0000 (+0200)
Subject: Change 0 to null to properly encode image to BMP if the first pixel is black
X-Git-Tag: v20.0.0beta4~7^2
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=refs%2Fpull%2F22768%2Fhead;p=nextcloud-server.git

Change 0 to null to properly encode image to BMP if the first pixel is black

Ref #22288

Signed-off-by: Morris Jobke <hey@morrisjobke.de>
---

diff --git a/lib/private/legacy/OC_Image.php b/lib/private/legacy/OC_Image.php
index 1e2791f62c9..3e9812c99f2 100644
--- a/lib/private/legacy/OC_Image.php
+++ b/lib/private/legacy/OC_Image.php
@@ -1211,7 +1211,7 @@ if (!function_exists('imagebmp')) {
 			} // RLE8
 			elseif ($compression == 1 && $bit == 8) {
 				for ($j = $height - 1; $j >= 0; $j--) {
-					$lastIndex = 0;
+					$lastIndex = null;
 					$sameNum = 0;
 					for ($i = 0; $i <= $width; $i++) {
 						$index = imagecolorat($im, $i, $j);