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Diffstat (limited to 'runtimes/neurun/src/util/feature/nchw/View.h')
-rw-r--r-- | runtimes/neurun/src/util/feature/nchw/View.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/runtimes/neurun/src/util/feature/nchw/View.h b/runtimes/neurun/src/util/feature/nchw/View.h new file mode 100644 index 000000000..048fdecd8 --- /dev/null +++ b/runtimes/neurun/src/util/feature/nchw/View.h @@ -0,0 +1,106 @@ +/* + * 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 __NEURUN_UTIL_FEATURE_NCHW_VIEW_H__ +#define __NEURUN_UTIL_FEATURE_NCHW_VIEW_H__ + +#include "misc/feature/Reader.h" +#include "misc/feature/Shape.h" + +#include "backend/interface/operand/ITensor.h" +#include "util/feature/Coordinate4D.h" + +#include <cassert> + +namespace neurun +{ +namespace util +{ +namespace feature +{ +namespace nchw +{ + +template <typename T> class View final : public nnfw::misc::feature::Reader<T> +{ +public: + View(::neurun::backend::operand::ITensor *tensor) : _tensor{tensor} + { + // TODO Validate whether tensor is a feature map, or not + _shape.N = tensor->dimension(3); + _shape.C = tensor->dimension(2); + _shape.H = tensor->dimension(1); + _shape.W = tensor->dimension(0); + } + +public: + const ::nnfw::misc::feature::Shape &shape(void) const { return _shape; } + +public: + T at(uint32_t ch, uint32_t row, uint32_t col) const override + { + const auto offset = feature_index_to_byte_offset(0, ch, row, col); + + T *ptr = reinterpret_cast<T *>(_tensor->buffer() + offset); + + return *ptr; + } + T at(uint32_t batch, uint32_t ch, uint32_t row, uint32_t col) const override + { + const auto offset = feature_index_to_byte_offset(batch, ch, row, col); + + T *ptr = reinterpret_cast<T *>(_tensor->buffer() + offset); + + return *ptr; + } + +public: + T &at(uint32_t ch, uint32_t row, uint32_t col) + { + const auto offset = feature_index_to_byte_offset(0, ch, row, col); + + T *ptr = reinterpret_cast<T *>(_tensor->buffer() + offset); + + return *ptr; + } + T &at(uint32_t batch, uint32_t ch, uint32_t row, uint32_t col) + { + const auto offset = feature_index_to_byte_offset(batch, ch, row, col); + + T *ptr = reinterpret_cast<T *>(_tensor->buffer() + offset); + + return *ptr; + } + +private: + size_t feature_index_to_byte_offset(uint32_t batch, uint32_t ch, uint32_t row, uint32_t col) const + { + return _tensor->calcOffset( + neurun::util::feature::Coordinate4D{static_cast<int32_t>(batch), static_cast<int32_t>(row), + static_cast<int32_t>(col), static_cast<int32_t>(ch)}); + } + +private: + ::nnfw::misc::feature::Shape _shape; + ::neurun::backend::operand::ITensor *_tensor; +}; + +} // namespace nchw +} // namespace feature +} // namespace util +} // namespace neurun + +#endif // __NEURUN_UTIL_FEATURE_NCHW_VIEW_H__ |