/* * Copyright (C) 2017 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef FRAMEWORKS_ML_NN_SVDF_H #define FRAMEWORKS_ML_NN_SVDF_H #include "HalOperation.h" #include "tensorflow/lite/kernels/internal/tensor_utils.h" #include <algorithm> #include <cmath> namespace android { namespace nn { struct SVDFParams { int rank_; TfLiteFusedActivation activation_; }; struct RunTimeOperandInfo; struct Shape; class SVDF { public: SVDF(const Operation& operation, std::vector<RunTimeOperandInfo>& operands); static bool Prepare(const Operation& operation, std::vector<RunTimeOperandInfo>& operands, Shape* stateShape, Shape* outputShape); bool Eval(); static constexpr int kInputTensor = 0; static constexpr int kWeightsFeatureTensor = 1; static constexpr int kWeightsTimeTensor = 2; static constexpr int kBiasTensor = 3; // Optional static constexpr int kStateInTensor = 4; static constexpr int kRankParam = 5; static constexpr int kActivationParam = 6; static constexpr int kStateOutTensor = 0; static constexpr int kOutputTensor = 1; private: void EvalFloat32(const float* inputData, const float* inputStateData, const float* biasData, const float* weightsFeatureData, const float* weightsTimeData, float* outputData, float* outputStateData); SVDFParams params_; const RunTimeOperandInfo* input_; const RunTimeOperandInfo* weights_feature_; const RunTimeOperandInfo* weights_time_; const RunTimeOperandInfo* bias_; const RunTimeOperandInfo* state_in_; RunTimeOperandInfo* state_out_; RunTimeOperandInfo* output_; }; } // namespace nn } // namespace android #endif