| // |
| // Copyright © 2023 Arm Ltd and Contributors. All rights reserved. |
| // SPDX-License-Identifier: MIT |
| // |
| |
| #pragma once |
| |
| #include <armnn_delegate.hpp> |
| #include <DelegateUtils.hpp> |
| |
| #include <armnn/ArmNN.hpp> |
| #include <armnn/BackendHelper.hpp> |
| #include <armnn/utility/Assert.hpp> |
| #include <armnn/utility/NumericCast.hpp> |
| |
| #include <armnnUtils/Permute.hpp> |
| #include <armnnUtils/TensorUtils.hpp> |
| |
| #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/kernel_util.h> |
| |
| namespace |
| { |
| |
| // Macro to call an Is<layer_name>Supported function and log caller name together with reason for lack of support |
| #define FORWARD_LAYER_SUPPORT_FUNC(opName, tfLiteContext, func, backends, supported, setBackend, ...) \ |
| try \ |
| { \ |
| for (auto&& backendId : backends) \ |
| { \ |
| auto layerSupportObject = armnn::GetILayerSupportByBackendId(backendId); \ |
| if (layerSupportObject.IsBackendRegistered()) \ |
| { \ |
| std::string reasonIfUnsupported; \ |
| supported = \ |
| layerSupportObject.func(__VA_ARGS__, armnn::Optional<std::string&>(reasonIfUnsupported)); \ |
| if (supported) \ |
| { \ |
| setBackend = backendId; \ |
| break; \ |
| } \ |
| else \ |
| { \ |
| if (reasonIfUnsupported.size() > 0) \ |
| { \ |
| TFLITE_LOG_PROD(tflite::TFLITE_LOG_WARNING, \ |
| "%s: not supported by armnn: %s", opName, reasonIfUnsupported.c_str()); \ |
| } \ |
| else \ |
| { \ |
| TFLITE_LOG_PROD(tflite::TFLITE_LOG_WARNING, \ |
| "%s: not supported by armnn", opName); \ |
| } \ |
| } \ |
| } \ |
| else \ |
| { \ |
| TF_LITE_KERNEL_LOG(tfLiteContext, "%s: backend not registered: %s", opName, backendId.Get().c_str()); \ |
| } \ |
| } \ |
| if (!supported) \ |
| { \ |
| TF_LITE_KERNEL_LOG(tfLiteContext, "%s: not supported by any specified backend", opName); \ |
| } \ |
| } \ |
| catch (const armnn::InvalidArgumentException &e) \ |
| { \ |
| throw armnn::InvalidArgumentException(e, "Failed to check layer support", CHECK_LOCATION()); \ |
| } |
| |
| TfLiteStatus ValidateNumInputs(TfLiteContext* tfLiteContext, |
| TfLiteNode* tfLiteNode, |
| const unsigned int expectedSize, |
| int nodeIndex) |
| { |
| auto numInputs = tfLiteNode->inputs->size; |
| if (static_cast<unsigned int >(numInputs) != expectedSize) |
| { |
| TF_LITE_MAYBE_KERNEL_LOG( |
| tfLiteContext, "TfLiteArmnnDelegate: Unexpected number of inputs (%d != %d) in node #%d", |
| numInputs, expectedSize, nodeIndex); |
| return kTfLiteError; |
| } |
| return kTfLiteOk; |
| } |
| |
| TfLiteStatus ValidateNumOutputs(TfLiteContext* tfLiteContext, |
| TfLiteNode* tfLiteNode, |
| const unsigned int expectedSize, |
| int nodeIndex) |
| { |
| auto numOutputs = tfLiteNode->outputs->size; |
| if (static_cast<unsigned int >(numOutputs) != expectedSize) |
| { |
| TF_LITE_MAYBE_KERNEL_LOG( |
| tfLiteContext, "TfLiteArmnnDelegate: Unexpected number of outputs (%d != %d) in node #%d", |
| numOutputs, expectedSize, nodeIndex); |
| return kTfLiteError; |
| } |
| return kTfLiteOk; |
| } |
| |
| bool IsDynamicTensor(const TfLiteTensor& tfLiteTensor) |
| { |
| auto tensorAllocationType = tfLiteTensor.allocation_type; |
| if (tensorAllocationType == kTfLiteDynamic) |
| { |
| return true; |
| } |
| return false; |
| } |
| |
| bool IsValid(const TfLiteTensor* tfLiteTensor) |
| { |
| return tfLiteTensor == nullptr ? false : true; |
| } |
| |
| bool IsValid(TfLiteContext* tfLiteContext, const TfLiteTensor& tfLiteTensor, int32_t operatorCode, int32_t nodeIndex) |
| { |
| if(!IsValid(&tfLiteTensor)) |
| { |
| std::cout << "..Is Not Valid" << std::endl; |
| TF_LITE_MAYBE_KERNEL_LOG( |
| tfLiteContext, |
| "TfLiteArmnnDelegate: Invalid TfLite tensor in operator #%d node #%d: ", |
| operatorCode, nodeIndex); |
| return false; |
| } |
| if (IsDynamicTensor(tfLiteTensor)) |
| { |
| std::cout << "..IsDynamicTensor" << std::endl; |
| TF_LITE_MAYBE_KERNEL_LOG( |
| tfLiteContext, |
| "TfLiteArmnnDelegate: Dynamic tensors are not supported in operator #%d node #%d: ", |
| operatorCode, nodeIndex); |
| return false; |
| } |
| return true; |
| } |
| |
| bool IsAffineQuantization(const TfLiteTensor& tfLiteTensor) |
| { |
| auto quantizationInfo = tfLiteTensor.quantization; |
| if (quantizationInfo.type == kTfLiteAffineQuantization) |
| { |
| return true; |
| } |
| return false; |
| } |
| |
| TfLiteStatus Connect(armnn::IConnectableLayer* layer, |
| TfLiteNode* tfLiteNode, |
| armnnDelegate::DelegateData& data) |
| { |
| ARMNN_ASSERT(static_cast<unsigned int>(tfLiteNode->outputs->size) == layer->GetNumOutputSlots()); |
| |
| // Connect the input slots |
| for (unsigned int inputIndex = 0; inputIndex < layer->GetNumInputSlots(); ++inputIndex) |
| { |
| if (data.m_OutputSlotForNode[tfLiteNode->inputs->data[inputIndex]] != nullptr) |
| { |
| data.m_OutputSlotForNode[tfLiteNode->inputs->data[inputIndex]]->Connect(layer->GetInputSlot(inputIndex)); |
| } |
| } |
| |
| // Prepare output slots |
| for (unsigned int outputIndex = 0; outputIndex < layer->GetNumOutputSlots(); ++outputIndex) |
| { |
| armnn::IOutputSlot& outputSlot = layer->GetOutputSlot(outputIndex); |
| data.m_OutputSlotForNode[static_cast<unsigned long>(tfLiteNode->outputs->data[outputIndex])] = &outputSlot; |
| } |
| |
| return kTfLiteOk; |
| } |
| |
| TfLiteStatus FusedActivation(TfLiteContext* tfLiteContext, |
| TfLiteNode* tfLiteNode, |
| TfLiteFusedActivation activationType, |
| armnn::IConnectableLayer* prevLayer, |
| unsigned int outputSlotIndex, |
| armnnDelegate::DelegateData& data) |
| { |
| |
| const armnn::TensorInfo& activationOutputInfo = prevLayer->GetOutputSlot(outputSlotIndex).GetTensorInfo(); |
| |
| armnn::ActivationDescriptor activationDesc; |
| |
| switch (activationType) |
| { |
| case kTfLiteActNone: |
| { |
| // No Activation |
| return kTfLiteOk; |
| } |
| case kTfLiteActRelu: |
| { |
| activationDesc.m_Function = armnn::ActivationFunction::ReLu; |
| break; |
| } |
| // The name of kTfLiteActRelu1 changed after TF Lite v2.3 |
| #if defined(ARMNN_POST_TFLITE_2_3) |
| case kTfLiteActReluN1To1: |
| #else |
| case kTfLiteActRelu1: |
| #endif |
| { |
| activationDesc.m_Function = armnn::ActivationFunction::BoundedReLu; |
| activationDesc.m_A = 1.0f; |
| activationDesc.m_B = -1.0f; |
| break; |
| } |
| case kTfLiteActRelu6: |
| { |
| activationDesc.m_Function = armnn::ActivationFunction::BoundedReLu; |
| activationDesc.m_A = 6.0f; |
| activationDesc.m_B = 0.0f; |
| break; |
| } |
| case kTfLiteActSigmoid: |
| { |
| activationDesc.m_Function = armnn::ActivationFunction::Sigmoid; |
| break; |
| } |
| case kTfLiteActTanh: |
| { |
| activationDesc.m_Function = armnn::ActivationFunction::TanH; |
| activationDesc.m_A = 1.0f; |
| activationDesc.m_B = 1.0f; |
| break; |
| } |
| default: |
| return kTfLiteError; |
| } |
| |
| bool isSupported = false; |
| armnn::BackendId setBackend; |
| FORWARD_LAYER_SUPPORT_FUNC("ACTIVATION", |
| tfLiteContext, |
| IsActivationSupported, |
| data.m_Backends, |
| isSupported, |
| setBackend, |
| activationOutputInfo, |
| activationOutputInfo, |
| activationDesc); |
| if (!isSupported) |
| { |
| return kTfLiteError; |
| } |
| armnn::IConnectableLayer* activationLayer = data.m_Network->AddActivationLayer(activationDesc); |
| activationLayer->SetBackendId(setBackend); |
| |
| ARMNN_ASSERT(activationLayer != nullptr); |
| activationLayer->GetOutputSlot(0).SetTensorInfo(activationOutputInfo); |
| |
| // Connect and prepare output slots |
| for (unsigned int outputIndex = 0; outputIndex < activationLayer->GetNumOutputSlots(); ++outputIndex) |
| { |
| data.m_OutputSlotForNode[static_cast<unsigned long>( |
| tfLiteNode->outputs->data[outputIndex])]->Connect(activationLayer->GetInputSlot(0)); |
| armnn::IOutputSlot& outputSlot = activationLayer->GetOutputSlot(outputIndex); |
| data.m_OutputSlotForNode[static_cast<unsigned long>( |
| tfLiteNode->outputs->data[outputIndex])] = &outputSlot; |
| } |
| return kTfLiteOk; |
| } |
| |
| armnn::IConnectableLayer* AddReshapeLayer(TfLiteContext* tfLiteContext, |
| TfLiteNode* tfLiteNode, |
| armnn::IConnectableLayer* prevLayer, |
| armnn::TensorInfo reshapedOutputTensorInfo, |
| armnn::TensorInfo outputTensorInfo, |
| armnnDelegate::DelegateData& data) |
| { |
| armnn::ReshapeDescriptor desc; |
| desc.m_TargetShape = outputTensorInfo.GetShape(); |
| |
| bool isSupported = false; |
| armnn::BackendId setBackend; |
| FORWARD_LAYER_SUPPORT_FUNC("RESHAPE", |
| tfLiteContext, |
| IsReshapeSupported, |
| data.m_Backends, |
| isSupported, |
| setBackend, |
| reshapedOutputTensorInfo, |
| outputTensorInfo, |
| desc); |
| |
| if (!isSupported) |
| { |
| return nullptr; |
| } |
| |
| armnn::IConnectableLayer* reshapeLayer = data.m_Network->AddReshapeLayer(desc); |
| reshapeLayer->SetBackendId(setBackend); |
| ARMNN_ASSERT(reshapeLayer != nullptr); |
| |
| prevLayer->GetOutputSlot(0).SetTensorInfo(reshapedOutputTensorInfo); |
| reshapeLayer->GetOutputSlot(0).SetTensorInfo(outputTensorInfo); |
| |
| // Connect and prepare output slots |
| for (unsigned int outputIndex = 0; outputIndex < reshapeLayer->GetNumOutputSlots(); ++outputIndex) |
| { |
| data.m_OutputSlotForNode[static_cast<unsigned long>( |
| tfLiteNode->outputs->data[outputIndex])]->Connect(reshapeLayer->GetInputSlot(0)); |
| armnn::IOutputSlot& outputSlot = reshapeLayer->GetOutputSlot(outputIndex); |
| data.m_OutputSlotForNode[static_cast<unsigned long>( |
| tfLiteNode->outputs->data[outputIndex])] = &outputSlot; |
| } |
| return reshapeLayer; |
| } |
| |
| armnn::DataType GetDataType(const TfLiteTensor& tfLiteTensor) |
| { |
| switch (tfLiteTensor.type) |
| { |
| case kTfLiteBool: |
| return armnn::DataType::Boolean; |
| case kTfLiteFloat32: |
| return armnn::DataType::Float32; |
| case kTfLiteFloat16: |
| return armnn::DataType::Float16; |
| case kTfLiteUInt8: |
| return armnn::DataType::QAsymmU8; |
| case kTfLiteInt8: |
| { |
| auto quantizationInfo = tfLiteTensor.quantization; |
| if (quantizationInfo.type == kTfLiteAffineQuantization) |
| { |
| auto* quantization = |
| reinterpret_cast<TfLiteAffineQuantization*>(tfLiteTensor.quantization.params); |
| if (quantization->zero_point != nullptr && quantization->zero_point->size == 1) |
| { |
| return armnn::DataType::QAsymmS8; |
| } |
| else |
| { |
| return armnn::DataType::QSymmS8; |
| } |
| } |
| else |
| { |
| return armnn::DataType::QAsymmS8; |
| } |
| } |
| case kTfLiteInt16: |
| return armnn::DataType::QSymmS16; |
| case kTfLiteInt32: |
| return armnn::DataType::Signed32; |
| case kTfLiteInt64: |
| return armnn::DataType::Signed64; |
| default: |
| throw armnn::Exception(&"TfLiteArmnnDelegate: Unsupported data type: " [ tfLiteTensor.type]); |
| } |
| } |
| |
| armnn::TensorInfo GetTensorInfoForTfLiteTensor(const TfLiteTensor& tfLiteTensor, bool isOutput = false) |
| { |
| armnn::DataType type = GetDataType(tfLiteTensor); |
| armnn::TensorInfo ret; |
| auto tensorDimensionSize = tfLiteTensor.dims->size; |
| if (tensorDimensionSize == 0) |
| { |
| // If input tensor does not have a shape |
| // assuming that it has 1D tensor |
| if (!isOutput) |
| { |
| std::vector<unsigned int> safeShape = { 1 }; |
| bool dimensionsSpecificity[1] = { true }; |
| armnn::TensorShape tensorShape(armnn::numeric_cast<unsigned int>(safeShape.size()), |
| safeShape.data(), |
| dimensionsSpecificity); |
| ret = armnn::TensorInfo(tensorShape, type); |
| if(tflite::IsConstantTensor(&tfLiteTensor)) |
| { |
| ret.SetConstant(true); |
| } |
| } |
| else |
| { |
| armnn::TensorShape tensorShape(armnn::Dimensionality::NotSpecified); |
| ret = armnn::TensorInfo(tensorShape, type); |
| } |
| } |
| else |
| { |
| std::vector<unsigned int> tensorDims(static_cast<unsigned int>(tensorDimensionSize)); |
| bool dimensionsSpecificity[5] = { true, true, true, true, true }; |
| for (unsigned int i = 0; i < static_cast<unsigned int>(tensorDimensionSize); ++i) { |
| auto dim = tfLiteTensor.dims->data[i]; |
| if (dim == 0) |
| { |
| dimensionsSpecificity[i] = false; |
| } |
| tensorDims[i] = static_cast<unsigned int>(dim); |
| } |
| armnn::TensorShape tensorShape(static_cast<unsigned int>(tensorDimensionSize), |
| tensorDims.data(), |
| dimensionsSpecificity); |
| |
| if(tflite::IsConstantTensor(&tfLiteTensor)) |
| { |
| ret = armnn::TensorInfo(tensorShape, type); |
| ret.SetConstant(true); |
| } |
| else |
| { |
| ret = armnn::TensorInfo(tensorShape, type); |
| } |
| } |
| |
| auto quantizationInfo = tfLiteTensor.quantization; |
| if (quantizationInfo.type == kTfLiteAffineQuantization) |
| { |
| // get per-channel quantization parameters |
| const auto* affineQuantization = |
| reinterpret_cast<TfLiteAffineQuantization*>(tfLiteTensor.quantization.params); |
| if (affineQuantization->scale->size > 1) |
| { |
| std::vector<float> quantizationScales; |
| for (unsigned int i = 0; i < static_cast<unsigned int>(affineQuantization->scale->size); ++i) |
| { |
| quantizationScales.push_back(affineQuantization->scale->data[i]); |
| } |
| ret.SetQuantizationScales(quantizationScales); |
| ret.SetQuantizationDim(armnn::numeric_cast<unsigned int>(affineQuantization->quantized_dimension)); |
| } |
| else |
| { |
| ret.SetQuantizationScale(affineQuantization->scale->data[0]); |
| ret.SetQuantizationOffset(affineQuantization->zero_point->data[0]); |
| } |
| } |
| else |
| { |
| auto quantizationParameters = tfLiteTensor.params; |
| ret.SetQuantizationScale(quantizationParameters.scale); |
| ret.SetQuantizationOffset(quantizationParameters.zero_point); |
| } |
| |
| return ret; |
| } |
| |
| armnn::ConstTensor CreateConstTensor(const TfLiteTensor* tfLiteTensor, |
| const armnn::TensorInfo& tensorInfo) |
| { |
| if (tfLiteTensor->allocation_type != kTfLiteMmapRo) |
| { |
| throw armnn::Exception( |
| "TfLiteArmnnDelegate: Not constant allocation type: " + std::to_string(tfLiteTensor->allocation_type)); |
| } |
| |
| return armnn::ConstTensor(tensorInfo, tfLiteTensor->data.data); |
| } |
| |
| armnn::ConstTensor* GetConstTensorForTfLiteTensor(const TfLiteTensor* tfLiteTensors, TfLiteNode* tfLiteNode, int index) |
| { |
| const TfLiteTensor &tfLiteTensor = tfLiteTensors[tfLiteNode->inputs->data[index]]; |
| armnn::TensorInfo tensorInfo = GetTensorInfoForTfLiteTensor(tfLiteTensor); |
| return new armnn::ConstTensor(tensorInfo, tfLiteTensor.data.data); |
| } |
| |
| bool IsOptionalOperandPresent(TfLiteNode* tfLiteNode, const int operandIndex) |
| { |
| // If the inputs array has fewer than operandIndex entries or if the entry at operandIndex has a value of -1 or |
| // less then the input is not present. |
| if (tfLiteNode->inputs->size > operandIndex && tfLiteNode->inputs->data[operandIndex] >= 0) |
| { |
| return true; |
| } |
| return false; |
| } |
| |
| TfLiteStatus ProcessInputs(armnn::IConnectableLayer* layer, |
| armnnDelegate::DelegateData& delegateData, |
| TfLiteContext* tfLiteContext, |
| TfLiteNode* tfLiteNode) |
| { |
| const TfLiteTensor* tfLiteTensors = tfLiteContext->tensors; |
| // Process input tensors |
| // If input tensor is a Constant tensor create a constant layer and connect it to the network |
| for (unsigned int inputIndex = 0; inputIndex < layer->GetNumInputSlots(); ++inputIndex) |
| { |
| const TfLiteTensor& tfLiteInputTensor = tfLiteTensors[tfLiteNode->inputs->data[inputIndex]]; |
| if (tflite::IsConstantTensor(&tfLiteInputTensor)) |
| { |
| armnn::TensorInfo inputTensorInfo = GetTensorInfoForTfLiteTensor(tfLiteInputTensor); |
| bool isSupported = false; |
| armnn::BackendId setBackend; |
| FORWARD_LAYER_SUPPORT_FUNC("CONSTANT", |
| tfLiteContext, |
| IsConstantSupported, |
| delegateData.m_Backends, |
| isSupported, |
| setBackend, |
| inputTensorInfo); |
| if (!isSupported) |
| { |
| return kTfLiteError; |
| } |
| auto constantInput = CreateConstTensor(&tfLiteInputTensor, |
| inputTensorInfo); |
| armnn::IConnectableLayer* constantLayer = delegateData.m_Network->AddConstantLayer(constantInput); |
| constantLayer->SetBackendId(setBackend); |
| armnn::IOutputSlot& outputSlot = constantLayer->GetOutputSlot(0); |
| outputSlot.SetTensorInfo(inputTensorInfo); |
| |
| delegateData.m_OutputSlotForNode[tfLiteNode->inputs->data[inputIndex]] = &outputSlot; |
| } |
| } |
| return kTfLiteOk; |
| } |
| |
| } // namespace anonymous |