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chenyc

2025-06-12 7b72ac13a83764a662159d4a49b7fffb90476ecb

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/**
 * @license
 * Copyright 2021 Google LLC. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * =============================================================================
 */
import { SparseReshape } from '@tensorflow/tfjs-core';
import { sparseReshapeImplCPU } from '../kernel_utils/shared';
export function sparseReshape(args) {
    const { inputs, backend } = args;
    const { inputIndices, inputShape, newShape } = inputs;
    if (inputIndices.shape.length !== 2) {
        throw new Error(`Input indices should be a matrix but received shape ${inputIndices.shape}`);
    }
    if (inputShape.shape.length !== 1) {
        throw new Error(`Input shape should be a vector but received shape ${inputShape.shape}`);
    }
    if (newShape.shape.length !== 1) {
        throw new Error(`Target shape should be a vector but received shape ${newShape.shape}`);
    }
    const $inputShape = Array.from(backend.readSync(inputShape.dataId));
    const $inputIndices = backend.readSync(inputIndices.dataId);
    const targetShape = Array.from(backend.readSync(newShape.dataId));
    const [newIndices, indicesShape, outputShape] = sparseReshapeImplCPU($inputIndices, inputIndices.shape, inputIndices.dtype, $inputShape, targetShape);
    return [
        backend.makeTensorInfo(indicesShape, inputIndices.dtype, newIndices),
        backend.makeTensorInfo([outputShape.length], newShape.dtype, new Int32Array(outputShape)),
    ];
}
export const sparseReshapeConfig = {
    kernelName: SparseReshape,
    backendName: 'webgl',
    kernelFunc: sparseReshape,
};
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