@tensorflow/tfjs-backend-wasm
Version:
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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JavaScript
/**
* @license
* Copyright 2023 Google LLC.
* 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 { AvgPool3DGrad, backend_util } from '@tensorflow/tfjs-core';
let wasmAvgPool3DGrad;
function setup(backend) {
wasmAvgPool3DGrad = backend.wasm.cwrap('AvgPool3DGrad', null, [
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number', // filterWidth
]);
}
export function avgPool3DGrad(args) {
const { inputs, backend, attrs } = args;
const { dy, input } = inputs;
const { filterSize, strides, pad, dimRoundingMode } = attrs;
const convInfo = backend_util.computePool3DInfo(input.shape, filterSize, strides, /*dilations=*/ 1, pad, dimRoundingMode);
const dx = backend.makeOutput(input.shape, input.dtype);
wasmAvgPool3DGrad(backend.dataIdMap.get(dy.dataId).id, backend.dataIdMap.get(dx.dataId).id, convInfo.batchSize,
// Since Pool3D ops (AvgPool3D and MaxPool3D) support 3D filter only, in
// channels should always equal to out channels.
/*channelSize=*/ convInfo.inChannels, convInfo.inDepth, convInfo.inHeight, convInfo.inWidth, convInfo.outDepth, convInfo.outHeight, convInfo.outWidth, convInfo.strideDepth, convInfo.strideHeight, convInfo.strideWidth, convInfo.dilationDepth, convInfo.dilationHeight, convInfo.dilationWidth, convInfo.effectiveFilterDepth, convInfo.effectiveFilterHeight, convInfo.effectiveFilterWidth, convInfo.padInfo.front, convInfo.padInfo.top, convInfo.padInfo.left, convInfo.filterDepth, convInfo.filterHeight, convInfo.filterWidth);
return dx;
}
export const avgPool3DGradConfig = {
kernelName: AvgPool3DGrad,
backendName: 'wasm',
setupFunc: setup,
kernelFunc: avgPool3DGrad
};
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* @license\n * Copyright 2023 Google LLC.\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n * =============================================================================\n */\n\nimport {AvgPool3DGrad, AvgPool3DGradAttrs, AvgPool3DGradInputs, backend_util, KernelConfig, KernelFunc, TensorInfo} from '@tensorflow/tfjs-core';\n\nimport {BackendWasm} from '../backend_wasm';\n\nlet wasmAvgPool3DGrad: (\n    dyId: number, dxId: number, batchSize: number, channelSize: number,\n    inDepth: number, inHeight: number, inWidth: number, outDepth: number,\n    outHeight: number, outWidth: number, strideDepth: number,\n    strideHeight: number, strideWidth: number, dilationDepth: number,\n    dilationHeight: number, dilationWidth: number, effectiveFilterDepth: number,\n    effectiveFilterHeight: number, effectiveFilterWidth: number,\n    padFront: number, padTop: number, padLeft: number, filterDepth: number,\n    filterHeight: number, filterWidth: number) => void;\n\nfunction setup(backend: BackendWasm) {\n  wasmAvgPool3DGrad = backend.wasm.cwrap('AvgPool3DGrad', null, [\n    'number',  // dyId\n    'number',  // dxId\n    'number',  // batchSize\n    'number',  // channelSize\n    'number',  // inDepth\n    'number',  // inHeight\n    'number',  // inWidth\n    'number',  // outDepth\n    'number',  // outHeight\n    'number',  // outWidth\n    'number',  // strideDepth\n    'number',  // strideHeight\n    'number',  // strideWidth\n    'number',  // dilationDepth\n    'number',  // dilationHeight\n    'number',  // dilationWidth\n    'number',  // effectiveFilterDepth\n    'number',  // effectiveFilterHeight\n    'number',  // effectiveFilterWidth\n    'number',  // padFront\n    'number',  // padTop\n    'number',  // padLeft\n    'number',  // filterDepth\n    'number',  // filterHeight\n    'number',  // filterWidth\n  ]);\n}\n\nexport function avgPool3DGrad(args: {\n  inputs: AvgPool3DGradInputs,\n  attrs: AvgPool3DGradAttrs,\n  backend: BackendWasm,\n}): TensorInfo {\n  const {inputs, backend, attrs} = args;\n  const {dy, input} = inputs;\n  const {filterSize, strides, pad, dimRoundingMode} = attrs;\n\n  const convInfo = backend_util.computePool3DInfo(\n      input.shape as [number, number, number, number, number], filterSize,\n      strides, /*dilations=*/1, pad, dimRoundingMode);\n  const dx = backend.makeOutput(input.shape, input.dtype);\n\n  wasmAvgPool3DGrad(\n      backend.dataIdMap.get(dy.dataId).id,\n      backend.dataIdMap.get(dx.dataId).id,\n      convInfo.batchSize,\n      // Since Pool3D ops (AvgPool3D and MaxPool3D) support 3D filter only, in\n      // channels should always equal to out channels.\n      /*channelSize=*/convInfo.inChannels,\n      convInfo.inDepth,\n      convInfo.inHeight,\n      convInfo.inWidth,\n      convInfo.outDepth,\n      convInfo.outHeight,\n      convInfo.outWidth,\n      convInfo.strideDepth,\n      convInfo.strideHeight,\n      convInfo.strideWidth,\n      convInfo.dilationDepth,\n      convInfo.dilationHeight,\n      convInfo.dilationWidth,\n      convInfo.effectiveFilterDepth,\n      convInfo.effectiveFilterHeight,\n      convInfo.effectiveFilterWidth,\n      convInfo.padInfo.front,\n      convInfo.padInfo.top,\n      convInfo.padInfo.left,\n      convInfo.filterDepth,\n      convInfo.filterHeight,\n      convInfo.filterWidth,\n  );\n  return dx;\n}\n\nexport const avgPool3DGradConfig: KernelConfig = {\n  kernelName: AvgPool3DGrad,\n  backendName: 'wasm',\n  setupFunc: setup,\n  kernelFunc: avgPool3DGrad as unknown as KernelFunc\n};\n"]}