| // |
| // Copyright © 2017 Arm Ltd and Contributors. All rights reserved. |
| // SPDX-License-Identifier: MIT |
| // |
| |
| #include "GatherLayer.hpp" |
| #include "LayerCloneBase.hpp" |
| |
| #include <armnn/TypesUtils.hpp> |
| #include <backendsCommon/WorkloadData.hpp> |
| #include <backendsCommon/WorkloadFactory.hpp> |
| |
| namespace armnn |
| { |
| |
| GatherLayer::GatherLayer(const GatherDescriptor& param, const char* name) |
| : LayerWithParameters(2, 1, LayerType::Gather, param, name) |
| { |
| } |
| |
| std::unique_ptr<IWorkload> GatherLayer::CreateWorkload(const armnn::IWorkloadFactory& factory) const |
| { |
| GatherQueueDescriptor descriptor; |
| return factory.CreateGather(descriptor, PrepInfoAndDesc(descriptor)); |
| } |
| |
| GatherLayer* GatherLayer::Clone(Graph& graph) const |
| { |
| return CloneBase<GatherLayer>(graph, m_Param, GetName()); |
| } |
| |
| void GatherLayer::ValidateTensorShapesFromInputs() |
| { |
| VerifyLayerConnections(2, CHECK_LOCATION()); |
| |
| const TensorShape& outputShape = GetOutputSlot(0).GetTensorInfo().GetShape(); |
| |
| VerifyShapeInferenceType(outputShape, m_ShapeInferenceMethod); |
| |
| const TensorInfo& params = GetInputSlot(0).GetConnection()->GetTensorInfo(); |
| const TensorInfo& indices = GetInputSlot(1).GetConnection()->GetTensorInfo(); |
| |
| const unsigned int paramsDim = params.GetNumDimensions(); |
| const unsigned int indicesDim = indices.GetNumDimensions(); |
| const unsigned int outputDim = paramsDim - 1 + indicesDim; |
| |
| std::vector<unsigned int> dimSizes; |
| |
| unsigned int axis = static_cast<unsigned int>(m_Param.m_Axis); |
| if (m_Param.m_Axis < 0) |
| { |
| int32_t axis_aux = static_cast<int32_t>(paramsDim) + m_Param.m_Axis; |
| axis = static_cast<unsigned int> (axis_aux); |
| } |
| |
| for (unsigned int i = 0; i < axis; ++i) |
| { |
| dimSizes.push_back(params.GetShape()[i]); |
| } |
| for (unsigned int i = axis; i < indicesDim + axis; ++i) |
| { |
| dimSizes.push_back(indices.GetShape()[i - axis]); |
| } |
| for (unsigned int i = 1 + axis; i < paramsDim; ++i) |
| { |
| dimSizes.push_back(params.GetShape()[i]); |
| } |
| |
| const TensorShape& inferredShape = TensorShape(outputDim, dimSizes.data()); |
| |
| ValidateAndCopyShape(outputShape, inferredShape, m_ShapeInferenceMethod, "GatherLayer"); |
| } |
| |
| void GatherLayer::Accept(ILayerVisitor& visitor) const |
| { |
| visitor.VisitGatherLayer(this, GetParameters(), GetName()); |
| } |
| |
| } // namespace armnn |