IVGCVSW-4212 Example of standalone dynamic reference backend

 * Add example to build dynamic reference backend
 * Add functions to clear dynamic backends
 * Fix the error when dynamic backend is not deregistered
 * Add DYARMNN_DYNAMIC_BACKEND_ENABLED to check disable empty
   dynamic backend when dynamic backend is enabled

Signed-off-by: Narumol Prangnawarat <narumol.prangnawarat@arm.com>
Change-Id: I1ef3a3f10ed6ca5ec18d0af04b007fc3bc71a3cb

1 files changed, 33 insertions, 0 deletions

diff --git a/src/dynamic/reference/RefDynamicBackend.cpp b/src/dynamic/reference/RefDynamicBackend.cpp
new file mode 100644
index 0000000000..f2ed0f6033
--- /dev/null
+++ b/src/dynamic/reference/RefDynamicBackend.cpp
@@ -0,0 +1,33 @@
+//
+// Copyright © 2019 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "RefDynamicBackend.hpp"
+
+#include <reference/RefBackend.hpp>
+
+using namespace armnn;
+
+const char* GetBackendId()
+{
+    return RefBackend::GetIdStatic().Get().c_str();
+}
+
+void GetVersion(uint32_t* outMajor, uint32_t* outMinor)
+{
+    if (!outMajor || !outMinor)
+    {
+        return;
+    }
+
+    BackendVersion apiVersion = IBackendInternal::GetApiVersion();
+
+    *outMajor = apiVersion.m_Major;
+    *outMinor = apiVersion.m_Minor;
+}
+
+void* BackendFactory()
+{
+    return new RefBackend();
+}