1/**
2 * Copyright 2021 Alibaba, Inc. and its affiliates. All Rights Reserved.
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 * \author Haichao.chc
17 * \date Jun 2021
18 * \brief Helper class for transforming types
19 */
20
21#include "../typedef.h"
22
23namespace proxima {
24namespace be {
25namespace index {
26
27/*
28 * QuantizeTypes support FP16/INT8/INT4
29 */
30enum class QuantizeTypes : uint32_t {
31 UNDEFINED = 0,
32 VECTOR_FP16 = 1,
33 VECTOR_INT8 = 2,
34 VECTOR_INT4 = 3
35};
36
37/*
38 * Helper calss for transforming some inner types.
39 */
40class IndexHelper {
41 public:
42 //! Transform data type to proxima feature type
43 static FeatureTypes GetProximaFeatureType(DataTypes data_type);
44
45 //! Tranform str to quantize type
46 static QuantizeTypes GetQuantizeType(const std::string &quantize_type);
47};
48
49} // end namespace index
50} // namespace be
51} // end namespace proxima
52