View all fast-png analysis

How to use the fast-png.decode function in fast-png

To help you get started, we’ve selected a few fast-png examples, based on popular ways it is used in public projects.

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image-js / image-js / src / image / core / load.js View on Github

function loadPNG(data) {
  const png = decodePng(data);

  let components;
  let alpha = 0;
  switch (png.colourType) {
    case 0:
      components = 1;
      break;
    case 2:
      components = 3;
      break;
    case 3:
      return loadPNGFromPalette(png);
    case 4:
      components = 1;
      alpha = 1;
      break;

image-js / image-js / packages / image-js / src / load / decodePng.ts View on Github

export function decodePng(buffer: Uint8Array): Image {
  const png = decode(buffer);

  let kind: ImageKind;
  const depth: ColorDepth =
    png.depth === 16 ? ColorDepth.UINT16 : ColorDepth.UINT8;

  if (png.palette) {
    return loadPalettePNG(png);
  }

  switch (png.channels) {
    case 1:
      kind = ImageKind.GREY;
      break;
    case 2:
      kind = ImageKind.GREYA;
      break;