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@tensorflow/tfjs-backend-wasm

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This package adds a WebAssembly backend to TensorFlow.js. It currently supports the following models from our [models](https://github.com/tensorflow/tfjs-models) repo: - BlazeFace - BodyPix - CocoSSD - Face landmarks detection - HandPose - KNN classifier

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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 { Step } from '@tensorflow/tfjs-core'; import { CppDType } from './types'; let wasmStep; function setup(backend) { wasmStep = backend.wasm.cwrap(Step, null /*void*/, [ 'number', 'number', 'number', 'number', // out_id ]); } function step(args) { const { backend, inputs, attrs } = args; const { alpha } = attrs; const { x } = inputs; const xId = backend.dataIdMap.get(x.dataId).id; const out = backend.makeOutput(x.shape, x.dtype); const outId = backend.dataIdMap.get(out.dataId).id; wasmStep(xId, alpha, CppDType[x.dtype], outId); return out; } export const stepConfig = { kernelName: Step, backendName: 'wasm', setupFunc: setup, kernelFunc: step }; //# sourceMappingURL=data:application/json;base64,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