From 12261b57966de125f77417b20533833d07b8fcea Mon Sep 17 00:00:00 2001
From: heckflosse <heckflosse67@gmx.de>
Date: Wed, 7 Feb 2018 14:45:57 +0100
Subject: [PATCH] Segfault reading folder with own 32-bit compressed TIFF,
 fixes #4376

---
 rtengine/iimage.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/rtengine/iimage.h b/rtengine/iimage.h
index 0a73a87cc..d0fe626c2 100644
--- a/rtengine/iimage.h
+++ b/rtengine/iimage.h
@@ -126,6 +126,11 @@ inline void ImageDatas::convertTo(unsigned char src, float& dst) const
 {
     dst = src * 257;
 }
+template<>
+inline void ImageDatas::convertTo(float src, float& dst) const
+{
+    dst = std::isnan(src) ? 0.f : src;
+}
 
 // --------------------------------------------------------------------
 //                       Planar order classes