| // |
| // Copyright © 2018-2024 Arm Ltd and Contributors. All rights reserved. |
| // SPDX-License-Identifier: MIT |
| // |
| |
| #include "SpaceToBatchNdLayer.hpp" |
| #include "LayerCloneBase.hpp" |
| |
| #include <armnn/backends/WorkloadData.hpp> |
| #include <armnn/backends/WorkloadFactory.hpp> |
| |
| #include <numeric> |
| |
| using namespace armnnUtils; |
| |
| namespace armnn |
| { |
| |
| SpaceToBatchNdLayer::SpaceToBatchNdLayer(const SpaceToBatchNdDescriptor param, const char* name) |
| : LayerWithParameters(1, 1, LayerType::SpaceToBatchNd, param, name) |
| {} |
| |
| std::unique_ptr<IWorkload> SpaceToBatchNdLayer::CreateWorkload(const IWorkloadFactory& factory) const |
| { |
| SpaceToBatchNdQueueDescriptor descriptor; |
| descriptor.m_Parameters.m_BlockShape = m_Param.m_BlockShape; |
| descriptor.m_Parameters.m_PadList = m_Param.m_PadList; |
| SetAdditionalInfo(descriptor); |
| |
| return factory.CreateWorkload(LayerType::SpaceToBatchNd, descriptor, PrepInfoAndDesc(descriptor)); |
| } |
| |
| SpaceToBatchNdLayer* SpaceToBatchNdLayer::Clone(Graph& graph) const |
| { |
| IgnoreUnused(graph); |
| return CloneBase<SpaceToBatchNdLayer>(graph, m_Param, GetName()); |
| } |
| |
| std::vector<TensorShape> SpaceToBatchNdLayer::InferOutputShapes(const std::vector<TensorShape>& inputShapes) const |
| { |
| const TensorShape inputShape = inputShapes[0]; |
| TensorShape outputShape(inputShape); |
| |
| outputShape[0] = inputShape[0] * std::accumulate(m_Param.m_BlockShape.begin(), |
| m_Param.m_BlockShape.end(), |
| 1U, |
| std::multiplies<>()); |
| |
| // In a 4D tensor, there will be 2 spatialDimensions (H and W), and the for loop will run twice. |
| // In a 3D tensor, there will be 1 spatialDimensions, and the for loop will run once. |
| unsigned int firstSpatialDimension = m_Param.m_DataLayout == DataLayout::NCHW ? 2 : 1; |
| for (unsigned int i = 0; i < m_Param.m_BlockShape.size(); ++i) |
| { |
| unsigned int spatialDimension = firstSpatialDimension + i; |
| outputShape[spatialDimension] = |
| (inputShape[spatialDimension] + m_Param.m_PadList[i].first + m_Param.m_PadList[i].second) |
| / m_Param.m_BlockShape[i]; |
| } |
| |
| return std::vector<TensorShape>({ outputShape }); |
| } |
| |
| void SpaceToBatchNdLayer::ValidateTensorShapesFromInputs() |
| { |
| VerifyLayerConnections(1, CHECK_LOCATION()); |
| |
| const TensorShape& outputShape = GetOutputSlot(0).GetTensorInfo().GetShape(); |
| |
| VerifyShapeInferenceType(outputShape, m_ShapeInferenceMethod); |
| |
| std::vector<TensorShape> inferredShapes = InferOutputShapes({ |
| GetInputSlot(0).GetTensorInfo().GetShape() }); |
| |
| if (inferredShapes.size() != 1) |
| { |
| throw armnn::LayerValidationException("inferredShapes has " |
| + std::to_string(inferredShapes.size()) + |
| " elements - should only have 1."); |
| } |
| |
| ValidateAndCopyShape(outputShape, inferredShapes[0], m_ShapeInferenceMethod, "SpaceToBatchNdLayer"); |
| } |
| |
| void SpaceToBatchNdLayer::ExecuteStrategy(IStrategy& strategy) const |
| { |
| strategy.ExecuteStrategy(this, GetParameters(), {}, GetName()); |
| } |
| |
| } // namespace |