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Diffstat (limited to 'include/util/tensor/Index.h')
-rw-r--r-- | include/util/tensor/Index.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/include/util/tensor/Index.h b/include/util/tensor/Index.h new file mode 100644 index 000000000..bc41d3c8e --- /dev/null +++ b/include/util/tensor/Index.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_UTIL_TENSOR_INDEX_H__ +#define __NNFW_UTIL_TENSOR_INDEX_H__ + +#include <cstdint> +#include <cstddef> + +#include <vector> +#include <initializer_list> + +namespace nnfw +{ +namespace util +{ +namespace tensor +{ + +struct Index +{ +public: + Index(size_t rank) { _offsets.resize(rank); } + +public: + Index(std::initializer_list<int32_t> offsets) : _offsets{offsets} + { + // DO NOTHING + } + +public: + size_t rank(void) const { return _offsets.size(); } + +public: + int32_t at(size_t n) const { return _offsets.at(n); } + int32_t &at(size_t n) { return _offsets.at(n); } + +private: + std::vector<int32_t> _offsets; +}; + +// This is used to convert NNAPI tensor index to ARM tensor index or vice versa +inline static Index copy_reverse(const Index &origin) +{ + size_t rank = origin.rank(); + Index target(rank); + for (int i = 0; i < rank; i++) + target.at(i) = origin.at(rank-1 -i); + return target; +} + +} // namespace tensor +} // namespace util +} // namespace nnfw + +#endif // __NNFW_UTIL_TENSOR_INDEX_H__ |