COMPMID-500: Move HarrisCorners to new validation

Change-Id: I4e21ad98d029e360010c5927f04b716527700a00
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/88888
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>

1 files changed, 24 insertions, 1 deletions

diff --git a/tests/validation/CPP/Utils.h b/tests/validation/CPP/Utils.h
index 2d879c129b..91d1afe1d7 100644
--- a/tests/validation/CPP/Utils.h
+++ b/tests/validation/CPP/Utils.h
@@ -41,8 +41,31 @@ namespace test
 {
 namespace validation
 {
+// Return a tensor element at a specified coordinate with different border modes
 template <typename T>
-T tensor_elem_at(const SimpleTensor<T> &in, Coordinates coord, BorderMode border_mode, T constant_border_value);
+T tensor_elem_at(const SimpleTensor<T> &src, Coordinates coord, BorderMode border_mode, T constant_border_value)
+{
+    const int x      = coord.x();
+    const int y      = coord.y();
+    const int width  = src.shape().x();
+    const int height = src.shape().y();
+
+    // If coordinates beyond range of tensor's width or height
+    if(x < 0 || y < 0 || x >= width || y >= height)
+    {
+        if(border_mode == BorderMode::REPLICATE)
+        {
+            coord.set(0, std::max(0, std::min(x, width - 1)));
+            coord.set(1, std::max(0, std::min(y, height - 1)));
+        }
+        else
+        {
+            return constant_border_value;
+        }
+    }
+
+    return src[coord2index(src.shape(), coord)];
+}
 
 template <typename T>
 T bilinear_policy(const SimpleTensor<T> &in, Coordinates id, float xn, float yn, BorderMode border_mode, T constant_border_value);