[BUG]This image whose data length is not 1024

[wood1986]

When I decode this png, the data is in Uint8Array and the length is 1025. The length should be 1024. This image is 256 x 1. If I use RGBA, the total length should be 256 x 4 1024

Use browser console to run this code

const arrayBuffer = fetch("https://user-images.githubusercontent.com/5212215/81272862-edab9200-9002-11ea-956e-5bbeb910a4ab.png")
      .then(res => res.blob())
      .then(blob => blob.arrayBuffer())
      .then(decode)
      // .then(toRGBA8)
      .then(console.log);

[photopea]

Hi, what do you mean by "data length"?

You should use toRGBA8() to decode PNG images, as it is described in README. The output of toRGBA() will be 1024 bytes long.

[wood1986]

[photopea]

This array is used for the internal purposes of UPNG.js , just like "ctype" and some other properties. You should not use it for anything. You shoud use UPNG.js according to our README.

[wood1986]

I did toRGBA8 before and it was expected. But I did not know it is necessary in order to get the right data.