1 files changed, 77 insertions, 0 deletions
diff --git a/include/support/tflite/NNAPISession.h b/include/support/tflite/NNAPISession.h
new file mode 100644
index 000000000..4a8a2162b
--- /dev/null
+++ b/include/support/tflite/NNAPISession.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __NNFW_SUPPORT_TFLITE_NNAPI_SESSION_H__
+#define __NNFW_SUPPORT_TFLITE_NNAPI_SESSION_H__
+
+#include "Session.h"
+#include "support/tflite/nnapi_delegate.h"
+
+namespace nnfw
+{
+namespace support
+{
+namespace tflite
+{
+
+class NNAPISession final : public Session
+{
+public:
+  NNAPISession(::tflite::Interpreter *interp) : _interp{interp}
+  {
+    // Construct Graph from Interpreter
+    _delegate.BuildGraph(_interp);
+  }
+
+public:
+  ::tflite::Interpreter *interp(void) override { return _interp; }
+
+public:
+  bool prepare(void) override
+  {
+    // Explicitly turn off T/F lite internal NNAPI delegation in order to use locally defined
+    // NNAPI delegation.
+    _interp->UseNNAPI(false);
+
+    if (kTfLiteOk != _interp->AllocateTensors())
+    {
+      return false;
+    }
+
+    return true;
+  }
+
+  bool run(void) override
+  {
+    return kTfLiteOk == _delegate.Invoke(_interp);
+  }
+
+  bool teardown(void) override
+  {
+    // DO NOTHING
+    return true;
+  }
+
+private:
+  ::tflite::Interpreter * const _interp;
+  nnfw::NNAPIDelegate _delegate;
+};
+
+} // namespace tflite
+} // namespace support
+} // namespace nnfw
+
+#endif // __NNFW_SUPPORT_TFLITE_NNAPI_SESSION_H__