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diff --git a/intern/libmv/libmv/autotrack/region.h b/intern/libmv/libmv/autotrack/region.h
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+++ b/intern/libmv/libmv/autotrack/region.h
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+// Copyright (c) 2014 libmv authors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+// Author: mierle@gmail.com (Keir Mierle)
+
+#ifndef LIBMV_AUTOTRACK_REGION_H_
+#define LIBMV_AUTOTRACK_REGION_H_
+
+#include "libmv/numeric/numeric.h"
+
+namespace mv {
+
+using libmv::Vec2f;
+
+// A region is a bounding box within an image.
+//
+//    +----------> x
+//    |
+//    |   (min.x, min.y)           (max.x, min.y)
+//    |        +-------------------------+
+//    |        |                         |
+//    |        |                         |
+//    |        |                         |
+//    |        +-------------------------+
+//    v   (min.x, max.y)           (max.x, max.y)
+//    y
+//
+struct Region {
+  Vec2f min;
+  Vec2f max;
+
+  template<typename T>
+  void Offset(const T& offset) {
+    min += offset.template cast<float>();
+    max += offset.template cast<float>();
+  }
+
+  Region Rounded() const {
+    Region result;
+    result.min(0) = ceil(this->min(0));
+    result.min(1) = ceil(this->min(1));
+    result.max(0) = ceil(this->max(0));
+    result.max(1) = ceil(this->max(1));
+    return result;
+  }
+};
+
+}  // namespace mv
+
+#endif  // LIBMV_AUTOTRACK_REGION_H_