import { toCanvas } from "./toCanvas"

/** 图片解码把一个浏览器支持格式的图片 Blob 解码成 ImageData */
export async function imageDecode(imageBlob: Blob) {
    let { canvas } = await toCanvas(imageBlob)
    let ctx = canvas.getContext("2d")
    if (ctx === null) throw new Error("fzz [imageDecode] canvas.getContext;")
    let imageData = ctx.getImageData(0, 0, canvas.width, canvas.height)
    return imageData
}