@arcgis/core/core/imageUtils.js

ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API

/* COPYRIGHT Esri - https://js.arcgis.com/5.0.8/LICENSE.txt */
import t from"../request.js";import e from"./Error.js";import{isAbortError as r}from"./promiseUtils.js";import{dataComponents as a}from"./urlUtils.js";import{base64ToArrayBuffer as n}from"../support/base64Utils.js";let i=null,o=!0;function s(t,e,r){if(!t||!e)throw new Error("Cannot construct image data without dimensions");if(o)try{return new ImageData(t,e)}catch(a){o=!1}return m(t,e,r)}function c(t,e,r,a){if(!e||!r)throw new Error("Cannot construct image data without dimensions");if(o)try{return new ImageData(t,e,r)}catch(i){o=!1}const n=m(e,r,a);return n.data.set(t,0),n}function f(){return i||(i=document.createElement("canvas"),i.width=1,i.height=1),i}function m(t,e,r){return r||(r=f()),r.getContext("2d").createImageData(t,e)}async function u(a,n){const i=window.URL.createObjectURL(a);try{const{data:e}=await t(i,{...n,responseType:"image"});return e}catch(o){if(!r(o))throw new e("invalid-image",`Could not fetch requested image at ${i}`);throw o}finally{window.URL.revokeObjectURL(i)}}async function p(t,e){const{arrayBuffer:r,mediaType:a}=await d(t,e),n="image/png"===a;if("image/gif"===a){const{isAnimatedGIF:t,parseGif:a}=await import("./image/gif.js");if(t(r))return a(r,e)}if(n){const{isAnimatedPNG:t,parseApng:a}=await import("./image/apng.js");if(t(r))return a(r,e)}return u(new Blob([r],{type:a}),e)}async function d(e,r){const i=a(e);if(i?.isBase64)return{arrayBuffer:n(i.data),mediaType:i.mediaType};const o=await t(e,{responseType:"array-buffer",...r});return{arrayBuffer:o.data,mediaType:o.getHeader?.("Content-Type")??""}}export{s as createEmptyImageData,p as getImageData,c as wrapImageData};