62 lines
1.9 KiB
JavaScript
62 lines
1.9 KiB
JavaScript
// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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import { Tensor } from './tensor-impl.js';
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/**
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* calculate size from dims.
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*
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* @param dims the dims array. May be an illegal input.
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*/
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export const calculateSize = (dims) => {
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let size = 1;
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for (let i = 0; i < dims.length; i++) {
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const dim = dims[i];
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if (typeof dim !== 'number' || !Number.isSafeInteger(dim)) {
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throw new TypeError(`dims[${i}] must be an integer, got: ${dim}`);
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}
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if (dim < 0) {
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throw new RangeError(`dims[${i}] must be a non-negative integer, got: ${dim}`);
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}
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size *= dim;
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}
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return size;
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};
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/**
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* implementation of Tensor.reshape()
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*/
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export const tensorReshape = (tensor, dims) => {
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switch (tensor.location) {
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case 'cpu':
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return new Tensor(tensor.type, tensor.data, dims);
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case 'cpu-pinned':
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return new Tensor({
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location: 'cpu-pinned',
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data: tensor.data,
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type: tensor.type,
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dims,
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});
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case 'texture':
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return new Tensor({
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location: 'texture',
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texture: tensor.texture,
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type: tensor.type,
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dims,
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});
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case 'gpu-buffer':
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return new Tensor({
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location: 'gpu-buffer',
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gpuBuffer: tensor.gpuBuffer,
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type: tensor.type,
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dims,
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});
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case 'ml-tensor':
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return new Tensor({
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location: 'ml-tensor',
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mlTensor: tensor.mlTensor,
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type: tensor.type,
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dims,
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});
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default:
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throw new Error(`tensorReshape: tensor location ${tensor.location} is not supported`);
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}
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};
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//# sourceMappingURL=tensor-utils-impl.js.map
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