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 { DepthToSpace } from '@tensorflow/tfjs-core';
import { DepthToSpaceProgram } from '../depth_to_space_gpu';
export function depthToSpace(args) {
    const { inputs, backend, attrs } = args;
    const { x } = inputs;
    const { blockSize, dataFormat } = attrs;
    const batchSize = x.shape[0];
    const inputHeight = (dataFormat === 'NHWC') ? x.shape[1] : x.shape[2];
    const inputWidth = (dataFormat === 'NHWC') ? x.shape[2] : x.shape[3];
    const inputDepth = (dataFormat === 'NHWC') ? x.shape[3] : x.shape[1];
    const outputHeight = inputHeight * blockSize;
    const outputWidth = inputWidth * blockSize;
    const outputDepth = inputDepth / (blockSize * blockSize);
    const outputShape = (dataFormat === 'NHWC') ?
        [batchSize, outputHeight, outputWidth, outputDepth] :
        [batchSize, outputDepth, outputHeight, outputWidth];
    const program = new DepthToSpaceProgram(outputShape, blockSize, dataFormat);
    return backend.runWebGLProgram(program, [x], x.dtype);
}
export const depthToSpaceConfig = {
    kernelName: DepthToSpace,
    backendName: 'webgl',
    kernelFunc: depthToSpace
};
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