MCP 3D Printer Server

by DMontgomery40
Verified
import { GPU_CHUNK_BYTES } from './Constants.js'; /** @module BufferUtils **/ /** * This function is usually called with the length in bytes of an array buffer. * It returns an padded value which ensure chunk size alignment according to STD140 layout. * * @function * @param {Number} floatLength - The buffer length. * @return {Number} The padded length. */ function getFloatLength( floatLength ) { // ensure chunk size alignment (STD140 layout) return floatLength + ( ( GPU_CHUNK_BYTES - ( floatLength % GPU_CHUNK_BYTES ) ) % GPU_CHUNK_BYTES ); } /** * Given the count of vectors and their vector length, this function computes * a total length in bytes with buffer alignment according to STD140 layout. * * @function * @param {Number} count - The number of vectors. * @param {Number} [vectorLength=4] - The vector length. * @return {Number} The padded length. */ function getVectorLength( count, vectorLength = 4 ) { const strideLength = getStrideLength( vectorLength ); const floatLength = strideLength * count; return getFloatLength( floatLength ); } /** * This function is called with a vector length and ensure the computed length * matches a predefined stride (in this case `4`). * * @function * @param {Number} vectorLength - The vector length. * @return {Number} The padded length. */ function getStrideLength( vectorLength ) { const strideLength = 4; return vectorLength + ( ( strideLength - ( vectorLength % strideLength ) ) % strideLength ); } export { getFloatLength, getVectorLength, getStrideLength };