IVGCVSW-3606 Support memory import for Reference backend

Signed-off-by: Ferran Balaguer <ferran.balaguer@arm.com>
Change-Id: I94bd191f88e0911ad4e4727610e81cd7afa95512

1 files changed, 54 insertions, 0 deletions

diff --git a/src/backends/reference/RefTensorHandleFactory.hpp b/src/backends/reference/RefTensorHandleFactory.hpp
new file mode 100644
index 0000000000..220e6fd0de
--- /dev/null
+++ b/src/backends/reference/RefTensorHandleFactory.hpp
@@ -0,0 +1,54 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include "RefMemoryManager.hpp"
+
+#include <backendsCommon/ITensorHandleFactory.hpp>
+
+namespace armnn
+{
+
+constexpr const char * RefTensorHandleFactoryId() { return "Arm/Ref/TensorHandleFactory"; }
+
+class RefTensorHandleFactory : public ITensorHandleFactory
+{
+
+public:
+    RefTensorHandleFactory(std::shared_ptr<RefMemoryManager> mgr)
+    : m_MemoryManager(mgr),
+      m_ImportFlags(static_cast<MemorySourceFlags>(MemorySource::Malloc)),
+      m_ExportFlags(static_cast<MemorySourceFlags>(MemorySource::Malloc))
+    {}
+
+    std::unique_ptr<ITensorHandle> CreateSubTensorHandle(ITensorHandle& parent,
+                                                         TensorShape const& subTensorShape,
+                                                         unsigned int const* subTensorOrigin) const override;
+
+    std::unique_ptr<ITensorHandle> CreateTensorHandle(const TensorInfo& tensorInfo) const override;
+
+    std::unique_ptr<ITensorHandle> CreateTensorHandle(const TensorInfo& tensorInfo,
+                                                      DataLayout dataLayout) const override;
+
+    static const FactoryId& GetIdStatic();
+
+    const FactoryId& GetId() const override;
+
+    bool SupportsSubTensors() const override;
+
+    MemorySourceFlags GetExportFlags() const override;
+
+    MemorySourceFlags GetImportFlags() const override;
+
+private:
+    mutable std::shared_ptr<RefMemoryManager> m_MemoryManager;
+    MemorySourceFlags m_ImportFlags;
+    MemorySourceFlags m_ExportFlags;
+
+};
+
+} // namespace armnn
+