From 0419812ad7b86417bfda3e165957f33419e9fa4f Mon Sep 17 00:00:00 2001
From: Albert Astals Cid <aacid@kde.org>
Date: Sun, 5 Mar 2017 19:51:29 +0100
Subject: [PATCH] djvu: Initialize to white if rendering fails

It's what ddjvu does, and also it's not nice to return an uninitialzed image back to the user

BUGS: 377202
---
 generators/djvu/kdjvu.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/generators/djvu/kdjvu.cpp b/generators/djvu/kdjvu.cpp
index 210550729..36ae46b19 100644
--- a/generators/djvu/kdjvu.cpp
+++ b/generators/djvu/kdjvu.cpp
@@ -494,6 +494,10 @@ QImage KDjVu::Private::generateImageTile( ddjvu_page_t *djvupage, int& res,
     ddjvu_page_get_width( djvupage );
     res = ddjvu_page_render( djvupage, DDJVU_RENDER_COLOR,
                   &pagerect, &renderrect, m_format, res_img.bytesPerLine(), (char *)res_img.bits() );
+    if (!res)
+    {
+        res_img.fill(Qt::white);
+    }
 #ifdef KDJVU_DEBUG
     qDebug() << "rendering result:" << res;
 #endif
-- 
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