1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_FRAMEWORKS_ML_NN_COMMON_OPERATIONS_MULTINOMIAL_H 18 #define ANDROID_FRAMEWORKS_ML_NN_COMMON_OPERATIONS_MULTINOMIAL_H 19 20 #include <algorithm> 21 #include <cmath> 22 #include <vector> 23 24 #include "nnapi/Types.h" 25 26 namespace android { 27 namespace nn { 28 29 struct RunTimeOperandInfo; 30 struct Shape; 31 32 class Multinomial { 33 public: 34 Multinomial(const Operation& operation, RunTimeOperandInfo* operands); 35 36 static bool Prepare(const Operation& operation, RunTimeOperandInfo* operands, 37 Shape* outputShape); 38 bool Eval(); 39 40 static constexpr int kInputTensor = 0; 41 static constexpr int kSampleCountParam = 1; 42 static constexpr int kRandomSeedsTensor = 2; 43 44 static constexpr int kOutputTensor = 0; 45 46 private: 47 void EvalFloat32(const float* inputData); 48 49 RunTimeOperandInfo* input_; 50 int sample_count_; 51 RunTimeOperandInfo* random_seeds_; 52 53 RunTimeOperandInfo* output_; 54 }; 55 56 } // namespace nn 57 } // namespace android 58 59 #endif // ANDROID_FRAMEWORKS_ML_NN_COMMON_OPERATIONS_MULTINOMIAL_H 60