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Diffstat (limited to 'runtimes/libs/misc/include/misc/tensor/Object.h')
-rw-r--r-- | runtimes/libs/misc/include/misc/tensor/Object.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/runtimes/libs/misc/include/misc/tensor/Object.h b/runtimes/libs/misc/include/misc/tensor/Object.h new file mode 100644 index 000000000..83fbc0bd1 --- /dev/null +++ b/runtimes/libs/misc/include/misc/tensor/Object.h @@ -0,0 +1,100 @@ +/* + * 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 Object.h + * @ingroup COM_AI_RUNTIME + * @brief This file contains nnfw::misc::tensor::Object class + */ + +#ifndef __NNFW_MISC_TENSOR_OBJECT_H__ +#define __NNFW_MISC_TENSOR_OBJECT_H__ + +#include "misc/tensor/Shape.h" +#include "misc/tensor/Index.h" +#include "misc/tensor/IndexIterator.h" +#include "misc/tensor/NonIncreasingStride.h" +#include "misc/tensor/Reader.h" + +#include <vector> + +namespace nnfw +{ +namespace misc +{ +namespace tensor +{ + +/** + * @brief Class to build a tensor using specific generator + * @tparam T Type of tensor element + */ + +template <typename T> class Object final : public Reader<T> +{ +public: + /** + * @brief Function to generate tensor element + */ + using Generator = std::function<T(const Shape &shape, const Index &index)>; + +public: + /** + * @brief Construct a new @c Object object + * @param[in] shape Tensor shape + * @param[in] fn Function to generate tensor elements + */ + Object(const Shape &shape, const Generator &fn) : _shape{shape} + { + // Set 'stride' + _stride.init(shape); + + // Pre-allocate buffer + _values.resize(_shape.dim(0) * _stride.at(0)); + + // Set 'value' + iterate(_shape) << + [this, &fn](const Index &index) { _values.at(_stride.offset(index)) = fn(_shape, index); }; + } + +public: + /** + * @brief Get reference of shape + * @return Reference of shape + */ + const Shape &shape(void) const { return _shape; } + +public: + /** + * @brief Get and element of tensor + * @param[in] index Index of a tensor element + * @return Value of tensor element + */ + T at(const Index &index) const override { return _values.at(_stride.offset(index)); } + +private: + Shape _shape; + NonIncreasingStride _stride; + +private: + std::vector<T> _values; +}; + +} // namespace tensor +} // namespace misc +} // namespace nnfw + +#endif // __NNFW_MISC_FEATURE_OBJECT_H__ |