IVGCVSW-3277 Refactor TensorHandle factory API

 * Added backend support for multiple types of TensorHandle factories
 * Refactored the backend API to enable new tensor strategies
 * Added mechanism to determine memory strategies during optimization
 * Perform mem-copy only when Direct access is not found
 * Explicitly deleted the copy-constructor from OutputSlot to prevent
   accidental local copies that would cause the DisconnectAll to be
   called by the destructor

Change-Id: I7e812c8e5e6c1c20db1c5932749ac70fd93db7f8
Signed-off-by: Derek Lamberti <derek.lamberti@arm.com>
Signed-off-by: Matteo Martincigh <matteo.martincigh@arm.com>

1 files changed, 3 insertions, 6 deletions

diff --git a/src/backends/backendsCommon/OutputHandler.hpp b/src/backends/backendsCommon/OutputHandler.hpp
index 240b369fab..01e255deaa 100644
--- a/src/backends/backendsCommon/OutputHandler.hpp
+++ b/src/backends/backendsCommon/OutputHandler.hpp
@@ -5,6 +5,7 @@
 #pragma once
 
 #include "ITensorHandle.hpp"
+#include "ITensorHandleFactory.hpp"
 
 #include <armnn/Descriptors.hpp>
 #include <armnn/INetwork.hpp>
@@ -35,14 +36,10 @@ public:
     /// @param tensorInfo - TensorInfo for the output.
     void SetTensorInfo(const TensorInfo& tensorInfo);
 
-    /// @brief - Creates tensor handlers used by the intermediate tensors. Does not allocate memory.
+    /// @brief - Creates tensor handles used by the intermediate tensors. Does not allocate memory.
     /// @param factory - Factory to be used for handler creation.
     void CreateTensorHandles(const IWorkloadFactory& factory);
-
-    /// @brief - Creates tensor handlers used by the intermediate tensors. Does not allocate memory.
-    /// @param factory - Factory to be used for handler creation.
-    /// @param dataLayout - Data Layout to be used for handler creation.
-    void CreateTensorHandles(const IWorkloadFactory& factory, DataLayout dataLayout);
+    void CreateTensorHandles(const ITensorHandleFactory& factory);
 
     /// @brief - Gets the matching TensorInfo for the output.
     /// @return - References to the output TensorInfo.