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Diffstat (limited to 'runtime/onert/core/include/util/feature/nhwc/Reader.h')
-rw-r--r-- | runtime/onert/core/include/util/feature/nhwc/Reader.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/runtime/onert/core/include/util/feature/nhwc/Reader.h b/runtime/onert/core/include/util/feature/nhwc/Reader.h new file mode 100644 index 000000000..f00a864a6 --- /dev/null +++ b/runtime/onert/core/include/util/feature/nhwc/Reader.h @@ -0,0 +1,120 @@ +/* + * 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 __ONERT_UTIL_FEATURE_NHWC_READER_H__ +#define __ONERT_UTIL_FEATURE_NHWC_READER_H__ + +#include <cassert> + +#include "backend/ITensor.h" +#include "misc/feature/Reader.h" +#include "misc/feature/Shape.h" +#include "util/Utils.h" + +namespace onert +{ +namespace util +{ +namespace feature +{ +namespace nhwc +{ + +template <typename T> class Reader final : public nnfw::misc::feature::Reader<T> +{ +public: + // Construct for buffer of model inputs + Reader(const ::nnfw::misc::feature::Shape &shape, const T *ptr, size_t len) + : _shape{shape}, _ptr{reinterpret_cast<const uint8_t *>(ptr)}, _len{len} + { + UNUSED_RELEASE(len); // Workaround for unused variable in release mode + assert(shape.N * shape.C * shape.H * shape.W * sizeof(T) == len); + + // No padding + _strides.C = sizeof(T); + _strides.W = shape.C * sizeof(T); + _strides.H = shape.C * shape.W * sizeof(T); + _strides.N = shape.C * shape.W * shape.H * sizeof(T); + } + + // Construct for backend tensor + Reader(const backend::ITensor *tensor) + : _ptr{tensor->buffer() + tensor->calcOffset({0, 0, 0, 0})}, _len{tensor->total_size()} + { + assert(tensor->layout() == ir::Layout::NHWC); + + const auto start_offset = tensor->calcOffset({0, 0, 0, 0}); + _strides.C = tensor->dimension(3) == 1 ? 0 : tensor->calcOffset({0, 0, 0, 1}) - start_offset; + _strides.W = tensor->dimension(2) == 1 ? 0 : tensor->calcOffset({0, 0, 1, 0}) - start_offset; + _strides.H = tensor->dimension(1) == 1 ? 0 : tensor->calcOffset({0, 1, 0, 0}) - start_offset; + _strides.N = tensor->dimension(0) == 1 ? 0 : tensor->calcOffset({1, 0, 0, 0}) - start_offset; + + _shape.C = tensor->dimension(3); + _shape.W = tensor->dimension(2); + _shape.H = tensor->dimension(1); + _shape.N = tensor->dimension(0); + } + +public: + T at(uint32_t row, uint32_t col, uint32_t ch) const override + { + const auto offset = feature_index_to_byte_offset(0, row, col, ch); + + const T *ptr = reinterpret_cast<const T *>(_ptr + offset); + + return *ptr; + } + T at(uint32_t batch, uint32_t row, uint32_t col, uint32_t ch) const override + { + const auto offset = feature_index_to_byte_offset(batch, row, col, ch); + + const T *ptr = reinterpret_cast<const T *>(_ptr + offset); + + return *ptr; + } + +private: + size_t feature_index_to_byte_offset(uint32_t batch, uint32_t row, uint32_t col, uint32_t ch) const + { + assert(1u * _shape.N > batch); // shape.N > batch + assert(1u * _shape.H > row); // shape.H > row + assert(1u * _shape.W > col); // shape.W > col + assert(1u * _shape.C > ch); // shape.C > ch + + uint32_t res = 0; + res += batch * _strides.N; + res += row * _strides.H; + res += col * _strides.W; + res += ch * _strides.C; + + return res; + } + +private: + // TODO Remove _shape + nnfw::misc::feature::Shape _shape; + using Strides = nnfw::misc::feature::Shape; + Strides _strides; + const uint8_t *_ptr; + size_t _len; +}; + +} // namespace nhwc +} // namespace feature +} // namespace util +} // namespace onert + +#endif // __ONERT_UTIL_FEATURE_NHWC_READER_H__ |