From f45a886adc17a405a9a81cd5576aca84281f84fe Mon Sep 17 00:00:00 2001
From: Andrey Kamaev <no@email>
Date: Mon, 19 Sep 2011 15:14:14 +0000
Subject: [PATCH] Tegra optimization for
 CirclesGridClusterFinder::hierarchicalClustering

---
 modules/calib3d/src/circlesgrid.cpp | 4 ++++
 modules/calib3d/src/precomp.hpp     | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/modules/calib3d/src/circlesgrid.cpp b/modules/calib3d/src/circlesgrid.cpp
index 88294687c2..952b8f56db 100644
--- a/modules/calib3d/src/circlesgrid.cpp
+++ b/modules/calib3d/src/circlesgrid.cpp
@@ -52,6 +52,10 @@ using namespace std;
 
 void CirclesGridClusterFinder::hierarchicalClustering(const vector<Point2f> points, const Size &patternSize, vector<Point2f> &patternPoints)
 {
+#ifdef HAVE_TEGRA_OPTIMIZATION
+    if(tegra::hierarchicalClustering(points, patternSize, patternPoints))
+        return;
+#endif
     int i, j, n = (int)points.size();
     size_t pn = static_cast<size_t>(patternSize.area());
 
diff --git a/modules/calib3d/src/precomp.hpp b/modules/calib3d/src/precomp.hpp
index 2de1e3a701..e002910b80 100644
--- a/modules/calib3d/src/precomp.hpp
+++ b/modules/calib3d/src/precomp.hpp
@@ -57,4 +57,8 @@
 #include "opencv2/features2d/features2d.hpp"
 #include <vector>
 
+#ifdef HAVE_TEGRA_OPTIMIZATION
+#include "opencv2/calib3d/calib3d_tegra.hpp"
+#endif
+
 #endif