Function convertToFloat32

client/src/utils/fetch-more-data-source.ts:67–100

(buffer, dataType)

}

export function convertToFloat32(buffer, dataType) {
  if (dataType === 'ci8_le' || dataType === 'ci8' || dataType === 'i8') {
    let samples = Float32Array.from(new Int8Array(buffer));
    for (let i = 0; i < samples.length; i++) samples[i] = samples[i] / 255.0;
    return samples;
  } else if (dataType === 'cu8_le' || dataType === 'cu8' || dataType === 'u8') {
    let samples = Float32Array.from(new Uint8Array(buffer));
    for (let i = 0; i < samples.length; i++) samples[i] = (samples[i] - 255.0) / 255.0;
    return samples;
  } else if (dataType === 'ci16_le' || dataType === 'ci16') {
    let samples = Float32Array.from(new Int16Array(buffer));
    for (let i = 0; i < samples.length; i++) samples[i] = samples[i] / 32768.0;
    return samples;
  } else if (dataType === 'cu16_le' || dataType === 'cu16') {
    let samples = Float32Array.from(new Uint16Array(buffer));
    for (let i = 0; i < samples.length; i++) samples[i] = (samples[i] - 32768.0) / 32768.0;
    return samples;
  } else if (dataType === 'ci32_le'  || dataType === 'ci32') {
    let samples = Float32Array.from(new Int32Array(buffer));
    for (let i = 0; i < samples.length; i++) samples[i] = samples[i] / 2147483647.0;
    return samples;
  } else if (dataType === 'cu32_le' || dataType === 'cu32') {
    let samples = Float32Array.from(new Uint32Array(buffer));
    for (let i = 0; i < samples.length; i++) samples[i] = (samples[i] - 2147483647.0) / 2147483647.0;
    return samples;
  } else if (dataType === 'cf32_le' || dataType === 'cf32') {
    return new Float32Array(buffer);
  } else if (dataType === 'cf64_le' || dataType === 'cf64') {
    return Float32Array.from(new Float64Array(buffer));
  } else {
    console.error('Unknown data type: ' + dataType);
    return new Float32Array(buffer);
  }
}