Sadik Armagan | 62483be | 2020-10-23 17:14:43 +0100 | [diff] [blame] | 1 | // |
Sadik Armagan | 90a119b | 2022-08-05 16:12:49 +0100 | [diff] [blame] | 2 | // Copyright © 2022 Arm Ltd and Contributors. All rights reserved. |
Sadik Armagan | 62483be | 2020-10-23 17:14:43 +0100 | [diff] [blame] | 3 | // SPDX-License-Identifier: MIT |
| 4 | // |
| 5 | |
| 6 | #pragma once |
| 7 | |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 8 | #include "DelegateUtils.hpp" |
Finn Williams | 6f9f990 | 2020-11-13 13:23:15 +0000 | [diff] [blame] | 9 | #include <armnn/utility/IgnoreUnused.hpp> |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 10 | |
Sadik Armagan | 62483be | 2020-10-23 17:14:43 +0100 | [diff] [blame] | 11 | #include <tensorflow/lite/builtin_ops.h> |
| 12 | #include <tensorflow/lite/c/builtin_op_data.h> |
| 13 | #include <tensorflow/lite/c/common.h> |
| 14 | #include <tensorflow/lite/minimal_logging.h> |
| 15 | |
| 16 | namespace armnnDelegate |
| 17 | { |
| 18 | |
| 19 | TfLiteStatus VisitFullyConnectedOperator(DelegateData& delegateData, |
| 20 | TfLiteContext* tfLiteContext, |
| 21 | TfLiteNode* tfLiteNode, |
| 22 | int nodeIndex, |
| 23 | int32_t operatorCode) |
| 24 | { |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 25 | auto numInputs = tfLiteNode->inputs->size; |
| 26 | if (numInputs < 2) |
| 27 | { |
| 28 | TF_LITE_MAYBE_KERNEL_LOG( |
| 29 | tfLiteContext, "TfLiteArmnnDelegate: Minimum number of inputs (%d != %d) in node #%d", |
| 30 | 2, numInputs, nodeIndex); |
| 31 | return kTfLiteError; |
| 32 | } |
| 33 | TF_LITE_ENSURE_STATUS(ValidateNumOutputs(tfLiteContext, tfLiteNode, 1, nodeIndex)); |
Mike Kelly | 84d6378 | 2022-05-06 12:14:16 +0100 | [diff] [blame] | 34 | bool biasEnabled = IsOptionalOperandPresent(tfLiteNode, 2); |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 35 | |
| 36 | const TfLiteTensor* tfLiteTensors = tfLiteContext->tensors; |
| 37 | const TfLiteTensor& tfLiteInputTensor = tfLiteTensors[tfLiteNode->inputs->data[0]]; |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 38 | if (!IsValid(tfLiteContext, tfLiteInputTensor, operatorCode, nodeIndex)) |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 39 | { |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 40 | return kTfLiteError; |
| 41 | } |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 42 | |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 43 | const TfLiteTensor& tfLiteOutputTensor = tfLiteTensors[tfLiteNode->outputs->data[0]]; |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 44 | if (!IsValid(tfLiteContext, tfLiteOutputTensor, operatorCode, nodeIndex)) |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 45 | { |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 46 | return kTfLiteError; |
| 47 | } |
| 48 | |
| 49 | const TfLiteTensor& tfLiteWeightsTensor = tfLiteTensors[tfLiteNode->inputs->data[1]]; |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 50 | if (!IsValid(tfLiteContext, tfLiteWeightsTensor, operatorCode, nodeIndex)) |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 51 | { |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 52 | return kTfLiteError; |
| 53 | } |
| 54 | |
Mike Kelly | 84d6378 | 2022-05-06 12:14:16 +0100 | [diff] [blame] | 55 | const armnn::TensorInfo& inputTensorInfo = GetTensorInfoForTfLiteTensor(tfLiteInputTensor); |
| 56 | armnn::TensorInfo weightsTensorInfo = GetTensorInfoForTfLiteTensor(tfLiteWeightsTensor); |
Sadik Armagan | 90a119b | 2022-08-05 16:12:49 +0100 | [diff] [blame] | 57 | const armnn::TensorInfo& outputTensorInfo = GetTensorInfoForTfLiteTensor(tfLiteOutputTensor, true); |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 58 | |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 59 | // Fully Connected Layer accepts two dimensional weights input |
| 60 | int32_t weightsDimension = static_cast<int32_t>(weightsTensorInfo.GetNumDimensions()); |
| 61 | if (weightsDimension != 2) |
| 62 | { |
| 63 | TF_LITE_MAYBE_KERNEL_LOG( |
| 64 | tfLiteContext, |
| 65 | "TfLiteArmnnDelegate: Dimension #$d for Fully Connected weights is not supported by Armnn" |
| 66 | " in operator #%d node #%d: ", weightsDimension, operatorCode, nodeIndex); |
| 67 | return kTfLiteError; |
| 68 | } |
| 69 | |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 70 | bool isConstantWeights = tflite::IsConstantTensor(&tfLiteWeightsTensor); |
| 71 | |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 72 | armnn::TensorInfo biasTensorInfo; |
| 73 | if (biasEnabled) |
| 74 | { |
| 75 | const TfLiteTensor& tfLiteBiasTensor = tfLiteTensors[tfLiteNode->inputs->data[2]]; |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 76 | if (!IsValid(tfLiteContext, tfLiteBiasTensor, operatorCode, nodeIndex)) |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 77 | { |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 78 | return kTfLiteError; |
| 79 | } |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 80 | biasTensorInfo = GetTensorInfoForTfLiteTensor(tfLiteBiasTensor); |
| 81 | } |
| 82 | else |
| 83 | { |
| 84 | biasTensorInfo = armnn::TensorInfo(armnn::TensorShape({1}), GetDataType(tfLiteInputTensor)); |
| 85 | } |
| 86 | |
Narumol Prangnawarat | 55518ca | 2020-11-20 14:50:54 +0000 | [diff] [blame] | 87 | armnn::TensorInfo reshapedTensorInfo = GetTensorInfoForTfLiteTensor(tfLiteInputTensor); |
Narumol Prangnawarat | 55518ca | 2020-11-20 14:50:54 +0000 | [diff] [blame] | 88 | if (inputTensorInfo.GetNumDimensions() > 2) |
| 89 | { |
| 90 | // Calculate reshape to flatten to 2D [batch_size, input_size] |
| 91 | std::vector<unsigned int> reshapedDimensions(2); |
| 92 | reshapedDimensions[1] = weightsTensorInfo.GetShape()[1]; |
| 93 | reshapedDimensions[0] = inputTensorInfo.GetNumElements() / reshapedDimensions[1]; |
| 94 | |
| 95 | if (inputTensorInfo.GetNumElements() % reshapedDimensions[1] != 0) |
| 96 | { |
| 97 | TF_LITE_MAYBE_KERNEL_LOG( |
| 98 | tfLiteContext, |
| 99 | "TfLiteArmnnDelegate: Failed to deduce input tensor shape from filter size #%d #%d node #%d: ", |
| 100 | reshapedDimensions[1], operatorCode, nodeIndex); |
| 101 | return kTfLiteError; |
| 102 | } |
| 103 | |
| 104 | reshapedTensorInfo.SetShape(armnn::TensorShape{ 2, reshapedDimensions.data() }); |
| 105 | } |
| 106 | |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 107 | armnn::FullyConnectedDescriptor descriptor; |
| 108 | descriptor.m_TransposeWeightMatrix = true; |
| 109 | descriptor.m_BiasEnabled = biasEnabled; |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 110 | descriptor.m_ConstantWeights = isConstantWeights; |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 111 | |
| 112 | bool isSupported = false; |
| 113 | auto validateFunc = [&](const armnn::TensorInfo& outputTensorInfo, bool& isSupported) |
| 114 | { |
Sadik Armagan | bfa767c | 2022-02-09 14:58:03 +0000 | [diff] [blame] | 115 | FORWARD_LAYER_SUPPORT_FUNC("FULLY_CONNECTED", |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 116 | tfLiteContext, |
| 117 | IsFullyConnectedSupported, |
| 118 | delegateData.m_Backends, |
| 119 | isSupported, |
Narumol Prangnawarat | 55518ca | 2020-11-20 14:50:54 +0000 | [diff] [blame] | 120 | reshapedTensorInfo, |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 121 | outputTensorInfo, |
| 122 | weightsTensorInfo, |
| 123 | biasTensorInfo, |
| 124 | descriptor); |
| 125 | }; |
| 126 | |
| 127 | if (!delegateData.m_Network) |
| 128 | { |
| 129 | validateFunc(outputTensorInfo, isSupported); |
| 130 | return isSupported ? kTfLiteOk : kTfLiteError; |
| 131 | } |
| 132 | |
Matthew Sloyan | 81beae3 | 2021-07-13 19:46:11 +0100 | [diff] [blame] | 133 | armnn::IConnectableLayer* layer = delegateData.m_Network->AddFullyConnectedLayer(descriptor); |
| 134 | ARMNN_ASSERT(layer != nullptr); |
| 135 | |
| 136 | // Add a constant layer for weights and biases if inputs are constant. |
| 137 | if (isConstantWeights) |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 138 | { |
| 139 | auto weightsTensor = CreateConstTensor(&tfLiteWeightsTensor, |
| 140 | weightsTensorInfo, |
| 141 | armnn::Optional<armnn::PermutationVector&>()); |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 142 | |
Matthew Sloyan | 81beae3 | 2021-07-13 19:46:11 +0100 | [diff] [blame] | 143 | armnn::IConnectableLayer* weightsLayer = delegateData.m_Network->AddConstantLayer(weightsTensor); |
| 144 | |
| 145 | weightsLayer->GetOutputSlot(0).Connect(layer->GetInputSlot(1u)); |
| 146 | weightsLayer->GetOutputSlot(0).SetTensorInfo(weightsTensorInfo); |
| 147 | } |
| 148 | |
| 149 | if (biasEnabled) |
| 150 | { |
| 151 | const TfLiteTensor& tfLiteBiasTensor = tfLiteTensors[tfLiteNode->inputs->data[2]]; |
| 152 | if(tflite::IsConstantTensor(&tfLiteBiasTensor)) |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 153 | { |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 154 | auto biasTensor = CreateConstTensor(&tfLiteBiasTensor, |
| 155 | biasTensorInfo, |
| 156 | armnn::Optional<armnn::PermutationVector&>()); |
Matthew Sloyan | 81beae3 | 2021-07-13 19:46:11 +0100 | [diff] [blame] | 157 | |
| 158 | armnn::IConnectableLayer* biasLayer = delegateData.m_Network->AddConstantLayer(biasTensor); |
| 159 | ARMNN_ASSERT(biasLayer != nullptr); |
| 160 | |
| 161 | biasLayer->GetOutputSlot(0).Connect(layer->GetInputSlot(2u)); |
| 162 | biasLayer->GetOutputSlot(0).SetTensorInfo(biasTensorInfo); |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 163 | } |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 164 | } |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 165 | |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 166 | armnn::IOutputSlot& outputSlot = layer->GetOutputSlot(0); |
| 167 | outputSlot.SetTensorInfo(outputTensorInfo); |
| 168 | |
| 169 | armnn::IConnectableLayer* reshapeLayer = nullptr; |
| 170 | if (inputTensorInfo.GetNumDimensions() > 2) |
| 171 | { |
| 172 | // Add reshape to flatten to 2D [batch_size, input_size] |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 173 | armnn::ReshapeDescriptor reshapeDescriptor; |
| 174 | reshapeDescriptor.m_TargetShape = reshapedTensorInfo.GetShape(); |
| 175 | reshapeLayer = delegateData.m_Network->AddReshapeLayer(reshapeDescriptor); |
| 176 | ARMNN_ASSERT(reshapeLayer != nullptr); |
| 177 | |
| 178 | reshapeLayer->GetOutputSlot(0).SetTensorInfo(reshapedTensorInfo); |
| 179 | |
| 180 | // Connect |
| 181 | delegateData.m_OutputSlotForNode[tfLiteNode->inputs->data[0]]->Connect(reshapeLayer->GetInputSlot(0)); |
| 182 | reshapeLayer->GetOutputSlot(0).Connect(layer->GetInputSlot(0)); |
Matthew Sloyan | 81beae3 | 2021-07-13 19:46:11 +0100 | [diff] [blame] | 183 | |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 184 | if (!descriptor.m_ConstantWeights) |
| 185 | { |
| 186 | delegateData.m_OutputSlotForNode[tfLiteNode->inputs->data[1]]->Connect(layer->GetInputSlot(1)); |
Matthew Sloyan | 81beae3 | 2021-07-13 19:46:11 +0100 | [diff] [blame] | 187 | } |
| 188 | |
| 189 | if (biasEnabled && !tflite::IsConstantTensor(&tfLiteTensors[tfLiteNode->inputs->data[2]])) |
| 190 | { |
| 191 | delegateData.m_OutputSlotForNode[tfLiteNode->inputs->data[2]]->Connect(layer->GetInputSlot(2)); |
Sadik Armagan | f0a6dec | 2021-03-25 07:46:55 +0000 | [diff] [blame] | 192 | } |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 193 | delegateData.m_OutputSlotForNode[tfLiteNode->outputs->data[0]] = &outputSlot; |
| 194 | } |
| 195 | |
| 196 | if (reshapeLayer == nullptr) |
| 197 | { |
| 198 | Connect(layer, tfLiteNode, delegateData); |
| 199 | } |
| 200 | |
Teresa Charlin | 1c71764 | 2020-11-25 18:34:51 +0000 | [diff] [blame] | 201 | auto* tfLiteNodeParameters = reinterpret_cast<TfLiteFullyConnectedParams*>(tfLiteNode->builtin_data); |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 202 | if (!tfLiteNodeParameters) |
| 203 | { |
| 204 | // No Activation |
| 205 | return kTfLiteOk; |
| 206 | } |
| 207 | |
| 208 | // Check Activation |
| 209 | TfLiteFusedActivation activationType = tfLiteNodeParameters->activation; |
| 210 | return FusedActivation(tfLiteContext, tfLiteNode, activationType, layer, 0, delegateData); |
Sadik Armagan | 62483be | 2020-10-23 17:14:43 +0100 | [diff] [blame] | 211 | } |
| 212 | |
Sadik Armagan | 6e36a64 | 2020-11-10 21:18:41 +0000 | [diff] [blame] | 213 | } // namespace armnnDelegate |