| /* |
| * Copyright (c) 2017-2018 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #include "arm_compute/core/SubTensorInfo.h" |
| |
| #include "arm_compute/core/Error.h" |
| #include "arm_compute/core/Helpers.h" |
| #include "arm_compute/core/Validate.h" |
| #include "support/ToolchainSupport.h" |
| |
| using namespace arm_compute; |
| |
| namespace |
| { |
| /** Extends parent shape depending on subtensor's coordinates and shape |
| * |
| * @param parent_shape Parent shape |
| * @param shape Subtensor shape |
| * @param coords Subtensor coordinates inside parent tensor |
| * |
| * @return Extended parent shape |
| */ |
| TensorShape extend_parent_shape(TensorShape parent_shape, TensorShape shape, Coordinates coords) |
| { |
| // Subtensor should not index in x, y dimensions. |
| ARM_COMPUTE_ERROR_ON((coords.x() != 0) || (coords.y() != 0)); |
| |
| // Cannot extend on x, y ? |
| ARM_COMPUTE_ERROR_ON((parent_shape.total_size() != 0) && (parent_shape.x() != shape.x()) && (parent_shape.y() != shape.y())); |
| |
| // Extend shape |
| for(unsigned int i = 0; i < TensorShape::num_max_dimensions; ++i) |
| { |
| int dimension_extend = coords[i] + static_cast<int>(shape[i]); |
| if((dimension_extend > static_cast<int>(parent_shape[i])) && (dimension_extend > 0)) |
| { |
| parent_shape.set(i, static_cast<size_t>(dimension_extend)); |
| } |
| } |
| |
| return parent_shape; |
| } |
| } // namespace |
| |
| SubTensorInfo::SubTensorInfo() |
| : _parent(nullptr), _tensor_shape(), _coords(), _valid_region{ Coordinates(), _tensor_shape }, _extend_parent(false) |
| { |
| } |
| |
| SubTensorInfo::SubTensorInfo(ITensorInfo *parent, TensorShape tensor_shape, Coordinates coords, bool extend_parent) |
| : _parent(parent), _tensor_shape(tensor_shape), _coords(coords), _valid_region{ Coordinates(), _tensor_shape }, _extend_parent(extend_parent) |
| { |
| ARM_COMPUTE_ERROR_ON(parent == nullptr); |
| // Check if subtensor is valid if parent is configured |
| if(parent->tensor_shape().total_size() != 0 && !_extend_parent) |
| { |
| ARM_COMPUTE_ERROR_ON_INVALID_SUBTENSOR(parent->tensor_shape(), coords, tensor_shape); |
| } |
| |
| // Initialize valid region |
| _valid_region = ValidRegion{ Coordinates(), _tensor_shape }; |
| } |
| |
| std::unique_ptr<ITensorInfo> SubTensorInfo::clone() const |
| { |
| // Clone creates a TensorInfo object from SubTensorInfo's parent which will conclude to a TensorInfo |
| // For now it does not make sense to copy a SubTensorInfo explicitly |
| ARM_COMPUTE_ERROR_ON(_parent == nullptr); |
| auto clone_obj = _parent->clone(); |
| clone_obj->set_tensor_shape(_tensor_shape); |
| clone_obj->set_valid_region(_valid_region); |
| return clone_obj; |
| } |
| |
| ITensorInfo &SubTensorInfo::set_tensor_shape(const TensorShape &shape) |
| { |
| ARM_COMPUTE_ERROR_ON(_parent == nullptr); |
| |
| // Check if subtensor is valid if parent is configured |
| if(_parent->tensor_shape().total_size() != 0 && !_extend_parent) |
| { |
| ARM_COMPUTE_ERROR_ON_INVALID_SUBTENSOR(_parent->tensor_shape(), _coords, shape); |
| _valid_region = ValidRegion{ _coords, shape }; |
| } |
| else if(_extend_parent) // Extend parent shape, configure if specified |
| { |
| ARM_COMPUTE_ERROR_ON((_parent->data_type() == DataType::UNKNOWN) && (_parent->format() == Format::UNKNOWN)); |
| TensorShape parent_extended_shape = extend_parent_shape(_parent->tensor_shape(), shape, _coords); |
| _parent->set_tensor_shape(parent_extended_shape); |
| _parent->set_valid_region(ValidRegion{ Coordinates(), parent_extended_shape }); |
| } |
| _tensor_shape = shape; |
| return *this; |
| } |
| |
| bool SubTensorInfo::extend_padding(const PaddingSize &padding) |
| { |
| ARM_COMPUTE_ERROR_ON(_parent == nullptr); |
| ARM_COMPUTE_ERROR_ON(!_parent->is_resizable()); |
| ARM_COMPUTE_ERROR_ON(_parent->total_size() == 0); |
| |
| // Extend parent padding if required |
| return _parent->extend_padding(padding); |
| } |
| |
| int32_t SubTensorInfo::offset_element_in_bytes(const Coordinates &pos) const |
| { |
| ARM_COMPUTE_ERROR_ON_COORDINATES_DIMENSIONS_GTE(pos, _tensor_shape.num_dimensions()); |
| |
| int32_t offset = offset_first_element_in_bytes(); |
| const Strides &strides = strides_in_bytes(); |
| |
| for(size_t i = 0; i < _tensor_shape.num_dimensions(); ++i) |
| { |
| offset += pos[i] * strides[i]; |
| } |
| |
| return offset; |
| } |