COMPMID-661: Fix scale border issue (#38)

Change-Id: If1dcca724e5e5f5ab363ffc16b0ef8c943e0b657
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/110105
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
diff --git a/utils/TypePrinter.h b/utils/TypePrinter.h
index 863fcaf..876f3fc 100644
--- a/utils/TypePrinter.h
+++ b/utils/TypePrinter.h
@@ -572,6 +572,24 @@
     return os;
 }
 
+/** Formatted output of the SamplingPolicy type. */
+inline ::std::ostream &operator<<(::std::ostream &os, const SamplingPolicy &policy)
+{
+    switch(policy)
+    {
+        case SamplingPolicy::CENTER:
+            os << "CENTER";
+            break;
+        case SamplingPolicy::TOP_LEFT:
+            os << "TOP_LEFT";
+            break;
+        default:
+            ARM_COMPUTE_ERROR("NOT_SUPPORTED!");
+    }
+
+    return os;
+}
+
 /** Formatted output of the TensorInfo type. */
 inline std::string to_string(const TensorInfo &info)
 {
@@ -663,6 +681,13 @@
     return str.str();
 }
 
+inline std::string to_string(const SamplingPolicy &policy)
+{
+    std::stringstream str;
+    str << policy;
+    return str.str();
+}
+
 /** Formatted output of the ConversionPolicy type. */
 inline ::std::ostream &operator<<(::std::ostream &os, const ConvertPolicy &policy)
 {