1 /* 2 * Copyright (C) 2017 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 FRAMEWORKS_ML_NN_LSH_PROJECTION_H 18 #define FRAMEWORKS_ML_NN_LSH_PROJECTION_H 19 20 #include "Operations.h" 21 22 namespace android { 23 namespace hardware { 24 namespace neuralnetworks { 25 namespace V1_0 { 26 struct Operation; 27 } 28 } // namespace neuralnetworks 29 } // namespace hardware 30 } // namespace android 31 32 namespace android { 33 namespace nn { 34 35 enum LSHProjectionType { 36 LSHProjectionType_UNKNOWN = 0, 37 LSHProjectionType_SPARSE = 1, 38 LSHProjectionType_DENSE = 2, 39 }; 40 41 struct RunTimeOperandInfo; 42 struct Shape; 43 44 class LSHProjection { 45 public: 46 LSHProjection( 47 const android::hardware::neuralnetworks::V1_1::Operation &operation, 48 std::vector<RunTimeOperandInfo> &operands); 49 50 static bool Prepare( 51 const android::hardware::neuralnetworks::V1_1::Operation &operation, 52 std::vector<RunTimeOperandInfo>& operands, 53 Shape *outputShape); 54 bool Eval(); 55 56 static constexpr int kHashTensor = 0; 57 static constexpr int kInputTensor = 1; 58 static constexpr int kWeightTensor = 2; // Optional 59 60 static constexpr int kTypeParam = 3; 61 62 static constexpr int kOutputTensor = 0; 63 64 private: 65 LSHProjectionType type_; 66 67 const RunTimeOperandInfo *hash_; 68 const RunTimeOperandInfo *input_; 69 const RunTimeOperandInfo *weight_; 70 71 RunTimeOperandInfo *output_; 72 }; 73 74 } // namespace nn 75 } // namespace android 76 77 #endif // FRAMEWORKS_ML_NN_LSH_PROJECTION_H 78