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 ANDROID_FRAMEWORKS_ML_NN_COMMON_OPERATIONS_HASHTABLE_LOOKUP_H
18 #define ANDROID_FRAMEWORKS_ML_NN_COMMON_OPERATIONS_HASHTABLE_LOOKUP_H
19 
20 #include <vector>
21 
22 #include "HalInterfaces.h"
23 
24 namespace android {
25 namespace nn {
26 
27 struct RunTimeOperandInfo;
28 
29 class HashtableLookup {
30    public:
31     HashtableLookup(const hal::Operation& operation, RunTimeOperandInfo* operands);
32 
33     bool Eval();
34 
35     static constexpr int kLookupTensor = 0;
36     static constexpr int kKeyTensor = 1;
37     static constexpr int kValueTensor = 2;
38 
39     static constexpr int kOutputTensor = 0;
40     static constexpr int kHitsTensor = 1;
41 
42    private:
43     const RunTimeOperandInfo* lookup_;
44     const RunTimeOperandInfo* key_;
45     const RunTimeOperandInfo* value_;
46 
47     RunTimeOperandInfo* output_;
48     RunTimeOperandInfo* hits_;
49 };
50 
51 }  // namespace nn
52 }  // namespace android
53 
54 #endif  // ANDROID_FRAMEWORKS_ML_NN_COMMON_OPERATIONS_HASHTABLE_LOOKUP_H
55