mirror of https://github.com/CesiumGS/obj2gltf.git
30 lines
772 B
JavaScript
30 lines
772 B
JavaScript
'use strict';
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module.exports = getJsonBufferPadded;
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/**
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* Convert the JSON object to a padded buffer.
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*
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* Pad the JSON with extra whitespace to fit the next 4-byte boundary. This ensures proper alignment
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* for the section that follows.
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*
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* @param {Object} [json] The JSON object.
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* @returns {Buffer} The padded JSON buffer.
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*
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* @private
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*/
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function getJsonBufferPadded(json) {
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let string = JSON.stringify(json);
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const boundary = 4;
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const byteLength = Buffer.byteLength(string);
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const remainder = byteLength % boundary;
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const padding = (remainder === 0) ? 0 : boundary - remainder;
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let whitespace = '';
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for (let i = 0; i < padding; ++i) {
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whitespace += ' ';
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}
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string += whitespace;
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return Buffer.from(string);
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}
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