gx

chenyc

2025-06-12 7b72ac13a83764a662159d4a49b7fffb90476ecb

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/**
 * @license
 * Copyright 2020 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 { backend_util, MaxPool3DGrad } from '@tensorflow/tfjs-core';
import { MaxPool3DBackpropProgram } from '../max_pool_backprop_gpu';
import { Pool3DProgram } from '../pool_gpu';
export function maxPool3DGrad(args) {
    const { inputs, backend, attrs } = args;
    const { dy, input } = inputs;
    const x = input;
    const { filterSize, strides, pad, dimRoundingMode } = attrs;
    const dilations = [1, 1, 1];
    const convInfo = backend_util.computePool3DInfo(x.shape, filterSize, strides, dilations, pad, dimRoundingMode);
    const maxPool3dPositionsProgram = new Pool3DProgram(convInfo, 'max', true /* get positions */);
    const maxPool3dPositions = backend.runWebGLProgram(maxPool3dPositionsProgram, [x], x.dtype);
    const maxPoolBackpropProgram = new MaxPool3DBackpropProgram(convInfo);
    const result = backend.runWebGLProgram(maxPoolBackpropProgram, [dy, maxPool3dPositions], x.dtype);
    backend.disposeIntermediateTensorInfo(maxPool3dPositions);
    return result;
}
export const maxPool3DGradConfig = {
    kernelName: MaxPool3DGrad,
    backendName: 'webgl',
    kernelFunc: maxPool3DGrad
};
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