From dbb5a324530ac88863fb1023f0c340b3df6581bd Mon Sep 17 00:00:00 2001
From: Andrey Kamaev <andrey.kamaev@itseez.com>
Date: Fri, 2 Nov 2012 13:16:16 +0400
Subject: [PATCH] Use Tegra version of cv::FAST

---
 modules/features2d/src/fast.cpp    | 4 ++++
 modules/features2d/src/precomp.hpp | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/modules/features2d/src/fast.cpp b/modules/features2d/src/fast.cpp
index 40442ef182..f0f636a72f 100644
--- a/modules/features2d/src/fast.cpp
+++ b/modules/features2d/src/fast.cpp
@@ -259,6 +259,10 @@ void FASTX(InputArray _img, std::vector<KeyPoint>& keypoints, int threshold, boo
       FAST_t<12>(_img, keypoints, threshold, nonmax_suppression);
       break;
     case FastFeatureDetector::TYPE_9_16:
+#ifdef HAVE_TEGRA_OPTIMIZATION
+      if(tegra::FAST(_img, keypoints, threshold, nonmax_suppression))
+        break;
+#endif
       FAST_t<16>(_img, keypoints, threshold, nonmax_suppression);
       break;
   }
diff --git a/modules/features2d/src/precomp.hpp b/modules/features2d/src/precomp.hpp
index 5b1babe699..c1e3ace7a5 100644
--- a/modules/features2d/src/precomp.hpp
+++ b/modules/features2d/src/precomp.hpp
@@ -52,4 +52,8 @@
 #include "opencv2/imgproc/imgproc_c.h"
 #include "opencv2/core/internal.hpp"
 
+#ifdef HAVE_TEGRA_OPTIMIZATION
+#include "opencv2/features2d/features2d_tegra.hpp"
+#endif
+
 #endif