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18 lines
664 B
JavaScript
18 lines
664 B
JavaScript
/**
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* @name u8aToFloat
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* @description Converts a Uint8Array value into the float (either 32 or 64-bit)
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* representation.
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*/
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export function u8aToFloat(value, { bitLength = 32, isLe = true } = {}) {
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if (bitLength !== 32 && bitLength !== 64) {
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throw new Error('Invalid bitLength provided, expected 32 or 64');
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}
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else if (value.length < (bitLength / 8)) {
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throw new Error(`Invalid input buffer provided, expected at least ${bitLength / 8} bytes, found ${value.length}`);
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}
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const dv = new DataView(value.buffer, value.byteOffset);
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return bitLength === 32
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? dv.getFloat32(0, isLe)
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: dv.getFloat64(0, isLe);
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}
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