From 680104fec37155533c1e86b60ffb41e80eda1f26 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20T=C5=AFma?= <tumic@cbox.cz>
Date: Sun, 11 Aug 2019 09:26:54 +0200
Subject: [PATCH] Fixed lat/lon reference parsing in big endian EXIF entries
 Closes #218

---
 src/common/tifffile.h   | 1 +
 src/data/exifparser.cpp | 7 +++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/common/tifffile.h b/src/common/tifffile.h
index 05dd816d..9ec461b0 100644
--- a/src/common/tifffile.h
+++ b/src/common/tifffile.h
@@ -17,6 +17,7 @@ public:
 	TIFFFile(QIODevice *device);
 
 	bool isValid() const {return _ifd != 0;}
+	bool isBE() const {return _be;}
 	quint32 ifd() const {return _ifd;}
 
 	bool seek(qint64 pos) {return _device->seek(_offset + pos);}
diff --git a/src/data/exifparser.cpp b/src/data/exifparser.cpp
index 0314517c..80200efc 100644
--- a/src/data/exifparser.cpp
+++ b/src/data/exifparser.cpp
@@ -113,9 +113,12 @@ Coordinates EXIFParser::coordinates(TIFFFile &file, const IFDEntry &lon,
 	if (!c.isValid())
 		return Coordinates();
 
-	if (lonRef.offset == 'W')
+	char ew = file.isBE() ? lonRef.offset >> 24 : lonRef.offset;
+	char ns = file.isBE() ? latRef.offset >> 24 : latRef.offset;
+
+	if (ew == 'W')
 		c.rlon() = -c.lon();
-	if (latRef.offset == 'S')
+	if (ns == 'S')
 		c.rlat() = -c.lat();
 
 	return c;