| // |
| // Copyright © 2024 Arm Ltd and Contributors. All rights reserved. |
| // SPDX-License-Identifier: MIT |
| // |
| |
| #pragma once |
| |
| #include <tensorflow/lite/builtin_ops.h> |
| #include <tensorflow/lite/c/builtin_op_data.h> |
| #include <tensorflow/lite/c/common.h> |
| #include <tensorflow/lite/minimal_logging.h> |
| #include <tensorflow/lite/kernels/internal/tensor_ctypes.h> |
| #include <tensorflow/lite/schema/schema_generated.h> |
| |
| namespace armnnDelegate |
| { |
| TfLiteStatus ValidateScatterNdOperator(DelegateData& delegateData, |
| TfLiteContext* tfLiteContext, |
| const armnn::TensorInfo& indicesInfo, |
| const armnn::TensorInfo& updatesInfo, |
| const armnn::TensorInfo& shapeInfo, |
| const armnn::TensorInfo& outputInfo, |
| const armnn::ScatterNdDescriptor& descriptor) |
| { |
| bool isSupported = false; |
| FORWARD_LAYER_SUPPORT_FUNC("SCATTER_ND", |
| tfLiteContext, |
| IsScatterNdSupported, |
| delegateData.m_Backends, |
| isSupported, |
| armnn::BackendId(), |
| shapeInfo, |
| indicesInfo, |
| updatesInfo, |
| outputInfo, |
| descriptor); |
| return isSupported ? kTfLiteOk : kTfLiteError; |
| } |
| |
| TfLiteStatus VisitScatterNdOperator(DelegateData& delegateData, |
| TfLiteContext* tfLiteContext, |
| TfLiteNode* tfLiteNode, |
| int nodeIndex, |
| int32_t scatterNdOperatorCode) |
| { |
| TF_LITE_ENSURE_STATUS(ValidateNumInputs(tfLiteContext, tfLiteNode, 3, nodeIndex)); |
| TF_LITE_ENSURE_STATUS(ValidateNumOutputs(tfLiteContext, tfLiteNode, 1, nodeIndex)); |
| |
| const TfLiteTensor* tfLiteTensors = tfLiteContext->tensors; |
| |
| // The indices tensor are the positions the data is updated/scattered into |
| const TfLiteTensor& tfLiteIndicesTensor = tfLiteTensors[tfLiteNode->inputs->data[0]]; |
| if (IsDynamicTensor(tfLiteIndicesTensor)) |
| { |
| TF_LITE_MAYBE_KERNEL_LOG( |
| tfLiteContext, |
| "TfLiteArmnnDelegate: Dynamic input tensors are not supported in operator #%d node #%d: ", |
| scatterNdOperatorCode, nodeIndex); |
| return kTfLiteError; |
| } |
| |
| // The updates tensor provides the data which will be updated/scattered into the relevant indices |
| const TfLiteTensor& tfLiteUpdatesTensor = tfLiteTensors[tfLiteNode->inputs->data[1]]; |
| if (IsDynamicTensor(tfLiteUpdatesTensor)) |
| { |
| TF_LITE_MAYBE_KERNEL_LOG( |
| tfLiteContext, |
| "TfLiteArmnnDelegate: Dynamic input tensors are not supported in operator #%d node #%d: ", |
| scatterNdOperatorCode, nodeIndex); |
| return kTfLiteError; |
| } |
| |
| // For tflite scatternd there is no input tensor |
| // The shape tensor is a 1D tensor which represents the shape of an input tensor to be filled with zeros |
| const TfLiteTensor& tfLiteShapeTensor = tfLiteTensors[tfLiteNode->inputs->data[2]]; |
| if (IsDynamicTensor(tfLiteUpdatesTensor)) |
| { |
| TF_LITE_MAYBE_KERNEL_LOG( |
| tfLiteContext, |
| "TfLiteArmnnDelegate: Dynamic input tensors are not supported in operator #%d node #%d: ", |
| scatterNdOperatorCode, nodeIndex); |
| return kTfLiteError; |
| } |
| |
| // The output tensor |
| const TfLiteTensor& tfLiteOutputTensor = tfLiteTensors[tfLiteNode->outputs->data[0]]; |
| if (IsDynamicTensor(tfLiteOutputTensor)) |
| { |
| TF_LITE_MAYBE_KERNEL_LOG( |
| tfLiteContext, |
| "TfLiteArmnnDelegate: Dynamic output tensors are not supported in operator #%d node #%d: ", |
| scatterNdOperatorCode, nodeIndex); |
| return kTfLiteError; |
| } |
| |
| const armnn::TensorInfo& indicesTensorInfo = GetTensorInfoForTfLiteTensor(tfLiteIndicesTensor); |
| const armnn::TensorInfo& updatesTensorInfo = GetTensorInfoForTfLiteTensor(tfLiteUpdatesTensor); |
| const armnn::TensorInfo& shapeTensorInfo = GetTensorInfoForTfLiteTensor(tfLiteShapeTensor); |
| const armnn::TensorInfo& outputTensorInfo = GetTensorInfoForTfLiteTensor(tfLiteOutputTensor); |
| |
| armnn::ScatterNdDescriptor scatterNdDescriptor; |
| scatterNdDescriptor.m_Function = armnn::ScatterNdFunction::Update; |
| scatterNdDescriptor.m_InputEnabled = false; |
| scatterNdDescriptor.m_Axis = 0; |
| scatterNdDescriptor.m_AxisEnabled = false; |
| |
| // Check output dimensions |
| if (shapeTensorInfo.GetShape().GetNumElements() != outputTensorInfo.GetNumDimensions()) |
| { |
| TF_LITE_MAYBE_KERNEL_LOG( |
| tfLiteContext, |
| "TfLiteArmnnDelegate: Shape tensor number of elements and output tensor dimension differ", |
| "Operator: #%d node #%d: ", |
| scatterNdOperatorCode, nodeIndex); |
| return kTfLiteError; |
| } |
| |
| // No network pointer indicates that only support for this operator should be checked |
| if (!delegateData.m_Network) |
| { |
| return ValidateScatterNdOperator(delegateData, |
| tfLiteContext, |
| indicesTensorInfo, |
| updatesTensorInfo, |
| shapeTensorInfo, |
| outputTensorInfo, |
| scatterNdDescriptor); |
| } |
| |
| auto layerName = GetLayerName(armnn::LayerType::ScatterNd, nodeIndex); |
| armnn::IConnectableLayer* layer = delegateData.m_Network->AddScatterNdLayer(scatterNdDescriptor, layerName.c_str()); |
| |
| if (layer == nullptr) |
| { |
| return kTfLiteError; |
| } |
| |
| layer->GetOutputSlot(0).SetTensorInfo(outputTensorInfo); |
| |
| if (ProcessInputs(layer, delegateData, tfLiteContext, tfLiteNode, nodeIndex) != kTfLiteOk) |
| { |
| return kTfLiteError; |
| } |
| |
| if (static_cast<unsigned int>(tfLiteNode->outputs->size) != layer->GetNumOutputSlots()) |
| { |
| return kTfLiteError; |
| } |
| |
| delegateData.m_OutputSlotForNode[tfLiteNode->inputs->data[2]]->Connect(layer->GetInputSlot(0)); |
| delegateData.m_OutputSlotForNode[tfLiteNode->inputs->data[0]]->Connect(layer->GetInputSlot(1)); |
| delegateData.m_OutputSlotForNode[tfLiteNode->inputs->data[1]]->Connect(layer->GetInputSlot(2)); |
| |
| // Prepare output slots |
| armnn::IOutputSlot& outputSlot = layer->GetOutputSlot(0); |
| delegateData.m_OutputSlotForNode[static_cast<unsigned long>(tfLiteNode->outputs->data[0])] = &outputSlot; |
| |
| return kTfLiteOk; |
| } |
| |
| } // namespace armnnDelegate |