From 302e6564a7a76109e1178207e44e45a58631c477 Mon Sep 17 00:00:00 2001
From: Chunseok Lee <chunseok.lee@samsung.com>
Date: Wed, 4 Mar 2020 18:09:24 +0900
Subject: Imported Upstream version 1.1.0

---
 .../pure_arm_compute/src/internal/TensorSource.h   | 83 ++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 runtime/contrib/pure_arm_compute/src/internal/TensorSource.h

(limited to 'runtime/contrib/pure_arm_compute/src/internal/TensorSource.h')

diff --git a/runtime/contrib/pure_arm_compute/src/internal/TensorSource.h b/runtime/contrib/pure_arm_compute/src/internal/TensorSource.h
new file mode 100644
index 000000000..114d3588e
--- /dev/null
+++ b/runtime/contrib/pure_arm_compute/src/internal/TensorSource.h
@@ -0,0 +1,83 @@
+/*
+ * 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.
+ */
+
+/**
+ * @file TensorSource.h
+ * @brief This file contains TensorSource class which is inherited from Source class
+ * @ingroup COM_AI_RUNTIME
+ */
+
+#ifndef __INTERNAL_TENSOR_SOURCE_H__
+#define __INTERNAL_TENSOR_SOURCE_H__
+
+#include <misc/tensor/Shape.h>
+#include <misc/tensor/IndexIterator.h>
+
+#include "internal/Source.h"
+#include "internal/Swizzle.h"
+#include "internal/nnapi/tensor/Reader.h"
+#include "internal/arm_compute/tensor/View.h"
+
+// NOTE TensorSource is much slower than specialized Source(s)
+/**
+ * @brief Class to define constructor and push function
+ */
+template <typename T> class TensorSource final : public Source
+{
+public:
+  /**
+   * @brief Construct a new TensorSource object with params
+   * @param [in] shape Shape of tensor
+   * @param [in] base Base address
+   * @param [in] size Size of tensor
+   */
+  TensorSource(const nnfw::misc::tensor::Shape &shape, const T *base, const size_t size)
+      : _shape{shape}, _base{base}, _size{size}
+  {
+    // DO NOTHING
+  }
+
+public:
+  /**
+   * @brief Function for pushing tensor
+   * @param [in] tensor Tensor to be pushed
+   * @return N/A
+   */
+  void push(::arm_compute::ITensor &tensor) const override
+  {
+    const ::internal::nnapi::tensor::Reader<T> from{_shape, _base, _size};
+    ::internal::arm_compute::tensor::View<T> into{&tensor};
+
+    ::nnfw::misc::tensor::iterate(_shape) << [&](const nnfw::misc::tensor::Index &index_nnapi) {
+      const auto rank = index_nnapi.rank();
+      nnfw::misc::tensor::Index index_ACL(rank);
+
+      for (uint32_t axis = 0; axis < rank; ++axis)
+      {
+        index_ACL.at(ToARMComputeAxis(rank, axis).value()) = index_nnapi.at(axis);
+      }
+
+      into.at(index_ACL) = from.at(index_nnapi);
+    };
+  }
+
+private:
+  const nnfw::misc::tensor::Shape _shape;
+  const T *const _base;
+  const size_t _size;
+};
+
+#endif // __INTERNAL_TENSOR_SOURCE_H__
-- 
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