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/*
* 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 FeatureSource.h
* @brief This file contains FeatureSource class
* @ingroup COM_AI_RUNTIME
*/
#ifndef __INTERNAL_FEATURE_SOURCE_H__
#define __INTERNAL_FEATURE_SOURCE_H__
#include <misc/feature/Shape.h>
#include <misc/feature/IndexIterator.h>
#include "internal/nnapi/feature/Reader.h"
#include "internal/arm_compute/feature/View.h"
/**
* @brief Class to store feature(4D) input data.
* This is for push out the data to another tensor.
* @tparam T Type of the data elements
*/
template <typename T> class FeatureSource final : public Source
{
public:
/**
* @brief Construct a FeatureSource object
*
* @param[in] shape 4D tensor dimensions for this feature
* @param[in] base Base pointer of the actual data
* @param[in] size Size of the data
*/
FeatureSource(const nnfw::misc::feature::Shape &shape, const T *base, const size_t size)
: _shape{shape}, _base{base}, _size{size}
{
// DO NOTHING
}
public:
/**
* @brief Push the data out to the another tensor
* @param[out] The tensor that output data will be stored
* @return N/A
*/
void push(::arm_compute::ITensor &tensor) const override
{
const ::internal::nnapi::feature::Reader<T> from{_shape, _base, _size};
::internal::arm_compute::feature::View<T> into{&tensor};
::nnfw::misc::feature::iterate(_shape)
<< [&](uint32_t batch, uint32_t ch, uint32_t row, uint32_t col) {
const auto value = from.at(batch, ch, row, col);
into.at(batch, ch, row, col) = value;
};
}
private:
const nnfw::misc::feature::Shape _shape;
const T *const _base;
const size_t _size;
};
#endif // __INTERNAL_FEATURE_SOURCE_H__
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