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c0052c1533
Summary: Pull Request resolved: https://github.com/facebookresearch/faiss/pull/2132 This diff adds the class IndexFlatCodes that becomes the parent of all "flat" encodings. IndexPQ IndexFlat IndexAdditiveQuantizer IndexScalarQuantizer IndexLSH Index2Layer The other changes are: - for IndexFlat, there is no vector<float> with the data anymore. It is replaced with a `get_xb()` function. This broke quite a few external codes, that this diff also attempts to fix. - I/O functions needed to be adapted. This is done without changing the I/O format for any index. - added a small contrib function to get the data from the IndexFlat - the functionality has been made uniform, for example remove_ids and add are now in the parent class. Eventually, we may support generic storage for flat indexes, similar to `InvertedLists`, eg to memmap the data, but this will again require a big change. Reviewed By: wickedfoo Differential Revision: D32646769 fbshipit-source-id: 04a1659173fd51b130ae45d345176b72183cae40
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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// Copyright 2004-present Facebook. All Rights Reserved.
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// -*- c++ -*-
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#include "IndexLSH_c.h"
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#include <faiss/IndexLSH.h>
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#include "macros_impl.h"
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using faiss::Index;
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using faiss::IndexLSH;
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DEFINE_DESTRUCTOR(IndexLSH)
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DEFINE_INDEX_DOWNCAST(IndexLSH)
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DEFINE_GETTER(IndexLSH, int, nbits)
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DEFINE_GETTER(IndexLSH, int, code_size)
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DEFINE_GETTER_PERMISSIVE(IndexLSH, int, rotate_data)
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DEFINE_GETTER_PERMISSIVE(IndexLSH, int, train_thresholds)
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int faiss_IndexLSH_new(FaissIndexLSH** p_index, idx_t d, int nbits) {
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try {
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*p_index = reinterpret_cast<FaissIndexLSH*>(new IndexLSH(d, nbits));
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}
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CATCH_AND_HANDLE
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}
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int faiss_IndexLSH_new_with_options(
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FaissIndexLSH** p_index,
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idx_t d,
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int nbits,
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int rotate_data,
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int train_thresholds) {
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try {
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*p_index = reinterpret_cast<FaissIndexLSH*>(new IndexLSH(
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d,
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nbits,
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static_cast<bool>(rotate_data),
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static_cast<bool>(train_thresholds)));
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}
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CATCH_AND_HANDLE
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}
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