rlayers/docs/424.bundle.js

React Components for OpenLayers

"use strict";(self.webpackChunkrlayers=self.webpackChunkrlayers||[]).push([[424],{424(e,r,t){t.d(r,{default:()=>l});var n=t(3075),o=t(2132);class l extends o.A{decodeBlock(e){return(0,n.UD)(new Uint8Array(e)).buffer}}},2132(e,r,t){function n(e,r){let t=e.length-r,n=0;do{for(let t=r;t>0;t--)e[n+r]+=e[n],n++;t-=r}while(t>0)}function o(e,r,t){let n=0,o=e.length;const l=o/t;for(;o>r;){for(let t=r;t>0;--t)e[n+r]+=e[n],++n;o-=r}const i=e.slice();for(let r=0;r<l;++r)for(let n=0;n<t;++n)e[t*r+n]=i[(t-n-1)*l+r]}t.d(r,{A:()=>l});class l{constructor(e){this.parameters=e}decodeBlock(e){throw new Error("decodeBlock not implemented")}async decode(e){const r=await this.decodeBlock(e),{tileWidth:t,tileHeight:l,predictor:i,bitsPerSample:s,planarConfiguration:a}=this.parameters;return 1!==i?function(e,r,t,l,i,s){if(!r||1===r)return e;for(let e=0;e<i.length;++e){if(i[e]%8!=0)throw new Error("When decoding with predictor, only multiple of 8 bits are supported.");if(i[e]!==i[0])throw new Error("When decoding with predictor, all samples must have the same size.")}const a=i[0]/8,c=2===s?1:i.length;for(let s=0;s<l&&!(s*c*t*a>=e.byteLength);++s){let l;if(2===r){switch(i[0]){case 8:l=new Uint8Array(e,s*c*t*a,c*t*a);break;case 16:l=new Uint16Array(e,s*c*t*a,c*t*a/2);break;case 32:l=new Uint32Array(e,s*c*t*a,c*t*a/4);break;default:throw new Error(`Predictor 2 not allowed with ${i[0]} bits per sample.`)}n(l,c)}else 3===r&&(l=new Uint8Array(e,s*c*t*a,c*t*a),o(l,c,a))}return e}(r,i,t,l,s,a):r}}}}]);