Spaces:
Sleeping
Sleeping
import { write, read } from "@xtuc/ieee754"; | |
/** | |
* According to https://webassembly.github.io/spec/binary/values.html#binary-float | |
* n = 32/8 | |
*/ | |
export var NUMBER_OF_BYTE_F32 = 4; | |
/** | |
* According to https://webassembly.github.io/spec/binary/values.html#binary-float | |
* n = 64/8 | |
*/ | |
export var NUMBER_OF_BYTE_F64 = 8; | |
export var SINGLE_PRECISION_MANTISSA = 23; | |
export var DOUBLE_PRECISION_MANTISSA = 52; | |
export function encodeF32(v) { | |
var buffer = []; | |
write(buffer, v, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32); | |
return buffer; | |
} | |
export function encodeF64(v) { | |
var buffer = []; | |
write(buffer, v, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64); | |
return buffer; | |
} | |
export function decodeF32(bytes) { | |
var buffer = new Uint8Array(bytes); | |
return read(buffer, 0, true, SINGLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F32); | |
} | |
export function decodeF64(bytes) { | |
var buffer = new Uint8Array(bytes); | |
return read(buffer, 0, true, DOUBLE_PRECISION_MANTISSA, NUMBER_OF_BYTE_F64); | |
} |