From 24379fcb5fdcbecb48c3057cbefe332525d04a60 Mon Sep 17 00:00:00 2001
From: Tetragramm <gaussgun+git@gmail.com>
Date: Thu, 10 Nov 2016 21:35:00 -0600
Subject: [PATCH] Use transpose() as suggested, because it works on
 pre-existing destination Mats.

---
 modules/core/src/copy.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/modules/core/src/copy.cpp b/modules/core/src/copy.cpp
index 259b71c645..1dd56f3cfe 100644
--- a/modules/core/src/copy.cpp
+++ b/modules/core/src/copy.cpp
@@ -833,14 +833,14 @@ static bool ocl_rotate(InputArray _src, OutputArray _dst, int rotateMode)
     switch (rotateMode)
     {
     case ROTATE_90_CLOCKWISE:
-        _dst.getUMat() = _src.getUMat().t();
+        transpose(_src, _dst);
         flip(_dst, _dst, 1);
         break;
     case ROTATE_180:
         flip(_src, _dst, -1);
         break;
     case ROTATE_90_COUNTERCLOCKWISE:
-        _dst.getUMat() = _src.getUMat().t();
+        transpose(_src, _dst);
         flip(_dst, _dst, 0);
         break;
     default:
@@ -859,14 +859,14 @@ void rotate(InputArray _src, OutputArray _dst, int rotateMode)
     switch (rotateMode)
     {
     case ROTATE_90_CLOCKWISE:
-        _dst.getMat() = _src.getMat().t();
+        transpose(_src, _dst);
         flip(_dst, _dst, 1);
         break;
     case ROTATE_180:
         flip(_src, _dst, -1);
         break;
     case ROTATE_90_COUNTERCLOCKWISE:
-        _dst.getMat() = _src.getMat().t();
+        transpose(_src, _dst);
         flip(_dst, _dst, 0);
         break;
     default: