/**
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* @license
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* Copyright 2020 Google LLC. All Rights Reserved.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* =============================================================================
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*/
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import {AvgPool3D, AvgPool3DAttrs, AvgPool3DInputs, backend_util, KernelConfig} from '@tensorflow/tfjs';
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import {createTensorsTypeOpAttr, NodeJSKernelBackend} from '../nodejs_kernel_backend';
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export const avgPool3DConfig: KernelConfig = {
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kernelName: AvgPool3D,
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backendName: 'tensorflow',
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kernelFunc: (args) => {
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const {x} = args.inputs as AvgPool3DInputs;
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const backend = args.backend as NodeJSKernelBackend;
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const {filterSize, strides, pad, dimRoundingMode, dataFormat} =
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args.attrs as unknown as AvgPool3DAttrs;
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const convInfo = backend_util.computePool3DInfo(
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x.shape as [number, number, number, number, number], filterSize,
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strides, 1 /* dilations */, pad, dimRoundingMode, dataFormat);
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if (convInfo.padInfo.type !== 'VALID' && convInfo.padInfo.type !== 'SAME') {
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throw new Error(
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`TF Backend supports only 'valid' and 'same' padding ` +
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`while padding was ${convInfo.padInfo.type}`);
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}
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const ksize = [
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1, convInfo.filterDepth, convInfo.filterHeight, convInfo.filterWidth, 1
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];
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const $strides = [
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1, convInfo.strideDepth, convInfo.strideHeight, convInfo.strideWidth, 1
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];
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const padding = convInfo.padInfo.type;
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const $dataFormat =
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convInfo.dataFormat === 'channelsLast' ? 'NDHWC' : 'NCDHW';
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const opAttrs = [
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createTensorsTypeOpAttr('T', x.dtype),
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{name: 'ksize', type: backend.binding.TF_ATTR_INT, value: ksize},
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{name: 'strides', type: backend.binding.TF_ATTR_INT, value: $strides},
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{name: 'padding', type: backend.binding.TF_ATTR_STRING, value: padding},
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{
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name: 'data_format',
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type: backend.binding.TF_ATTR_STRING,
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value: $dataFormat
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},
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];
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return backend.executeSingleOutput(AvgPool3D, opAttrs, [x]);
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}
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};
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