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1/**
2 * @license
3 * Copyright 2017 Google LLC. All Rights Reserved.
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/// <amd-module name="@tensorflow/tfjs-core/dist/ops/slice_util" />
18import { TensorInfo } from '../kernel_registry';
19export declare type SliceInfo = {
20 nonStrided: boolean;
21 $begin: number[];
22 $end: number[];
23 $strides: number[];
24 size: number[];
25 newShape: number[];
26 outShape: number[];
27};
28export declare function assertParamsValid(input: TensorInfo, begin: number[], size: number[]): void;
29/** Converts a binary mask to an array of axes. Used in stridedSlice(). */
30export declare function maskToAxes(mask: number): number[];
31/** Computes the output shape given the strided slice params. */
32export declare function computeOutShape(begin: number[], end: number[], strides: number[]): number[];
33export declare function stridesWithElidedDims(strides: number[], ellipsisInsertionIndex: number, numElidedAxes: number, inputShape: number[]): number[];
34export declare function getNormalizedAxes(inputShape: number[], ellipsisAxes: number[], numInterpolatedAxes: number, begin: number[], end: number[], strides: number[], beginMask: number, endMask: number, ellipsisMask: number): {
35 begin: number[];
36 end: number[];
37 strides: number[];
38};
39export declare function startIndicesWithElidedDims(beginMask: number, ellipsisInsertionIndex: number, numElidedAxes: number, originalBegin: number[], inputShape: number[]): number[];
40export declare function stopIndicesWithElidedDims(endMask: number, ellipsisInsertionIndex: number, numElidedAxes: number, originalEnd: number[], inputShape: number[]): number[];
41export declare function stridesForAxis(strides: number[], axis: number, ellipsisMask: number): number;
42export declare function startForAxis(beginMask: number, startIndices: number[], strides: number[], inputShape: number[], axis: number, ellipsisMask: number): number;
43export declare function stopForAxis(endMask: number, stopIndices: number[], strides: number[], inputShape: number[], axis: number, ellipsisMask: number): number;
44/**
45 * Returns true if the slice occupies a continous set of elements in the
46 * 'flat' space.
47 */
48export declare function isSliceContinous(shape: number[], begin: number[], size: number[]): boolean;
49export declare function computeFlatOffset(begin: number[], strides: number[]): number;
50export declare function parseSliceParams(x: TensorInfo, begin: number | number[], size?: number | number[]): number[][];
51export declare function sliceInfo(xShape: number[], begin: number[], end: number[], strides: number[], beginMask: number, endMask: number, ellipsisMask: number, newAxisMask: number, shrinkAxisMask: number): SliceInfo;