From 266efa40aed70fef6d64427bdbb7f26eff71cd65 Mon Sep 17 00:00:00 2001
From: Alberto Griggio <agriggio@users.noreply.github.com>
Date: Fri, 8 Sep 2017 11:24:10 +0200
Subject: [PATCH] fixed lensfun-based distortion correction for pictures in
 portrait orientation

---
 rtengine/rtlensfun.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/rtengine/rtlensfun.cc b/rtengine/rtlensfun.cc
index 31392698d..3900d4ee9 100644
--- a/rtengine/rtlensfun.cc
+++ b/rtengine/rtlensfun.cc
@@ -63,11 +63,13 @@ void LFModifier::correctDistortion(double &x, double &y, int cx, int cy, double
         std::swap(xx, yy);
     }
     if (data_->ApplyGeometryDistortion(xx, yy, 1, 1, pos)) {
-        x = pos[0] - cx;
-        y = pos[1] - cy;
+        x = pos[0];
+        y = pos[1];
         if (swap_xy_) {
             std::swap(x, y);
         }
+        x -= cx;
+        y -= cy;
     }
 }