Function float16ToFloat32

assets/main.js:705–724

(value)

}

function float16ToFloat32(value) {
  const sign = (value & 0x8000) >> 15;
  const exponent = (value & 0x7c00) >> 10;
  const fraction = value & 0x03ff;

  let result;
  if (exponent === 0) {
    if (fraction === 0) {
      result = 0;
    } else {
      result = (fraction / 0x400) * Math.pow(2, -14);
    }
  } else if (exponent === 0x1f) {
    result = fraction === 0 ? Number.POSITIVE_INFINITY : Number.NaN;
  } else {
    result = (1 + fraction / 0x400) * Math.pow(2, exponent - 15);
  }

  return sign === 1 ? -result : result;
}

function decodeFloat16Base64(base64, expectedLength) {
  const bytes = decodeBase64ToUint8Array(base64);