squoosh/src_old/codecs/resize/processor-sync.ts

import {
  builtinResize,
  BuiltinResizeMethod,
  drawableToImageData,
} from '../../lib/util';
import { BrowserResizeOptions, VectorResizeOptions } from './processor-meta';
import { getContainOffsets } from './util';

export function browserResize(
  data: ImageData,
  opts: BrowserResizeOptions,
): ImageData {
  let sx = 0;
  let sy = 0;
  let sw = data.width;
  let sh = data.height;

  if (opts.fitMethod === 'contain') {
    ({ sx, sy, sw, sh } = getContainOffsets(sw, sh, opts.width, opts.height));
  }

  return builtinResize(
    data,
    sx,
    sy,
    sw,
    sh,
    opts.width,
    opts.height,
    opts.method.slice('browser-'.length) as BuiltinResizeMethod,
  );
}

export function vectorResize(
  data: HTMLImageElement,
  opts: VectorResizeOptions,
): ImageData {
  let sx = 0;
  let sy = 0;
  let sw = data.width;
  let sh = data.height;

  if (opts.fitMethod === 'contain') {
    ({ sx, sy, sw, sh } = getContainOffsets(sw, sh, opts.width, opts.height));
  }

  return drawableToImageData(data, {
    sx,
    sy,
    sw,
    sh,
    width: opts.width,
    height: opts.height,
  });
}