/*
* 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