@thi.ng/pixel/format/gray-alpha8.js

Typedarray integer & float pixel buffers w/ customizable formats, blitting, drawing, convolution

import { Lane } from "../api.js";
import { __luminanceABGR } from "../internal/utils.js";
import { defIntFormat } from "./int-format.js";
const GRAY_ALPHA8 = defIntFormat({
  type: "u16",
  size: 16,
  alpha: 8,
  channels: [
    { size: 8, lane: Lane.ALPHA },
    { size: 8, lane: Lane.RED }
  ],
  fromABGR: (x) => __luminanceABGR(x) | x >>> 16 & 65280,
  toABGR: (x) => ((x & 65280) << 16 | (x & 255) * 65793) >>> 0
});
export {
  GRAY_ALPHA8
};