Introduce UniqueTensor (#1158)

Since NEUniqueTensor and CLUniqueTensor is very similar,
this commit introduce UniqueTensor to merge them into one.
After this commit, the current implementation of NEUniqueTensor
and CLUniqueTensor will be removed and replaced like below:

```
using NEUniqueTensor = UniqueTensor<::arm_compute::Tensor>;
using CLUniqueTensor = UniqueTensor<::arm_compute::CLTensor>;
```

Signed-off-by: Junghyun Kim <jh0822.kim@samsung.com>

diff --git a/libs/kernel/acl/src/UniqueTensor.h b/libs/kernel/acl/src/UniqueTensor.h
new file mode 100644 (file)
index 0000000..011e846
--- /dev/null
+++ b/libs/kernel/acl/src/UniqueTensor.h
@@ -0,0 +1,69 @@
+/*
+ * 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_KERNEL_ACL_UNIQUETENSOR_H__
+#define __NNFW_KERNEL_ACL_UNIQUETENSOR_H__
+
+#include <arm_compute/runtime/Tensor.h>
+#include <arm_compute/runtime/CL/CLTensor.h>
+
+namespace nnfw {
+namespace kernel {
+namespace acl {
+
+template<class TensorT>
+class UniqueTensor
+{
+public:
+  UniqueTensor(const ::arm_compute::TensorInfo &info)
+  {
+    _tensor.allocator()->init(info);
+  }
+
+public:
+  // Both copy and move are not allowed
+  UniqueTensor(const UniqueTensor &) = delete;
+  UniqueTensor(UniqueTensor &&) = delete;
+
+public:
+  ~UniqueTensor()
+  {
+    _tensor.allocator()->free();
+  }
+
+public:
+  void allocate()
+  {
+    _tensor.allocator()->allocate();
+  }
+
+public:
+  TensorT &ref(void) { return _tensor; }
+  TensorT *ptr(void) { return &_tensor; }
+
+private:
+  TensorT _tensor;
+};
+
+// TODO replace NEUniqueTensor implementation
+//using NEUniqueTensor = UniqueTensor<::arm_compute::Tensor>;
+//using CLUniqueTensor = UniqueTensor<::arm_compute::CLTensor>;
+
+} // namespace acl
+} // namespace kernel
+} // namespace nnfw
+
+#endif //__NNFW_KERNEL_ACL_UNIQUETENSOR_H__