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")+"Precision may be lost. Please report if you get this message to https://github.com/geotiffjs/geotiff.js/issues");return t}if(t=Math.pow(2,32)*r+n,!Number.isSafeInteger(t))throw new Error("".concat(t," exceeds MAX_SAFE_INTEGER. ")+"Precision may be lost. 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11:e.next=3;break;case 13:e.next=18;break;case 15:e.prev=15,e.t0=e.catch(1),t.e(e.t0);case 18:return e.prev=18,t.f(),e.finish(18);case 21:u=et(this.cache),e.prev=22,u.s();case 24:if((f=u.n()).done){e.next=33;break}if(c=f.value,l=o(c,2),h=l[0],d=l[1],!1!==this._deleteIfExpired(h,d)){e.next=31;break}return e.next=31,c;case 31:e.next=24;break;case 33:e.next=38;break;case 35:e.prev=35,e.t1=e.catch(22),u.e(e.t1);case 38:return e.prev=38,u.f(),e.finish(38);case 41:case"end":return e.stop()}}),e,this,[[1,15,18,21],[22,35,38,41]])}))},{key:"get",value:function(e){if(this.cache.has(e)){var t=this.cache.get(e);return this._getItemValue(e,t)}if(this.oldCache.has(e)){var r=this.oldCache.get(e);if(!1===this._deleteIfExpired(e,r))return this._moveToRecent(e,r),r.value}}},{key:"set",value:function(e,t){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:{},n=r.maxAge,i=void 0===n?this.maxAge:n,a="number"==typeof i&&i!==Number.POSITIVE_INFINITY?Date.now()+i:void 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t,r,n,i;return x.wrap((function(e){for(;;)switch(e.prev=e.next){case 0:t=et(this),e.prev=1,t.s();case 3:if((r=t.n()).done){e.next=9;break}return n=o(r.value,1),i=n[0],e.next=7,i;case 7:e.next=3;break;case 9:e.next=14;break;case 11:e.prev=11,e.t0=e.catch(1),t.e(e.t0);case 14:return e.prev=14,t.f(),e.finish(14);case 17:case"end":return e.stop()}}),e,this,[[1,11,14,17]])}))},{key:"values",value:x.mark((function e(){var t,r,n,i;return x.wrap((function(e){for(;;)switch(e.prev=e.next){case 0:t=et(this),e.prev=1,t.s();case 3:if((r=t.n()).done){e.next=9;break}return n=o(r.value,2),i=n[1],e.next=7,i;case 7:e.next=3;break;case 9:e.next=14;break;case 11:e.prev=11,e.t0=e.catch(1),t.e(e.t0);case 14:return e.prev=14,t.f(),e.finish(14);case 17:case"end":return e.stop()}}),e,this,[[1,11,14,17]])}))},{key:t,value:x.mark((function(){var e,t,r,n,i,a,s,u,f,c,l,h;return x.wrap((function(d){for(;;)switch(d.prev=d.next){case 0:e=et(this.cache),d.prev=1,e.s();case 3:if((t=e.n()).done){d.next=12;break}if(r=t.value,n=o(r,2),i=n[0],a=n[1],!1!==this._deleteIfExpired(i,a)){d.next=10;break}return d.next=10,[i,a.value];case 10:d.next=3;break;case 12:d.next=17;break;case 14:d.prev=14,d.t0=d.catch(1),e.e(d.t0);case 17:return d.prev=17,e.f(),d.finish(17);case 20:s=et(this.oldCache),d.prev=21,s.s();case 23:if((u=s.n()).done){d.next=33;break}if(f=u.value,c=o(f,2),l=c[0],h=c[1],this.cache.has(l)){d.next=31;break}if(!1!==this._deleteIfExpired(l,h)){d.next=31;break}return d.next=31,[l,h.value];case 31:d.next=23;break;case 33:d.next=38;break;case 35:d.prev=35,d.t1=d.catch(21),s.e(d.t1);case 38:return d.prev=38,s.f(),d.finish(38);case 41:case"end":return d.stop()}}),a,this,[[1,14,17,20],[21,35,38,41]])}))},{key:"entriesDescending",value:x.mark((function e(){var t,r,n,i,a,s,u,f,c,l,h;return x.wrap((function(e){for(;;)switch(e.prev=e.next){case 0:t=z(this.cache),r=t.length-1;case 2:if(!(r>=0)){e.next=12;break}if(n=t[r],i=o(n,2),a=i[0],s=i[1],!1!==this._deleteIfExpired(a,s)){e.next=9;break}return e.next=9,[a,s.value];case 9:--r,e.next=2;break;case 12:t=z(this.oldCache),u=t.length-1;case 14:if(!(u>=0)){e.next=25;break}if(f=t[u],c=o(f,2),l=c[0],h=c[1],this.cache.has(l)){e.next=22;break}if(!1!==this._deleteIfExpired(l,h)){e.next=22;break}return e.next=22,[l,h.value];case 22:--u,e.next=14;break;case 25:case"end":return e.stop()}}),e,this)}))},{key:"entriesAscending",value:x.mark((function e(){var t,r,n,i,a;return x.wrap((function(e){for(;;)switch(e.prev=e.next){case 0:t=et(this._entriesAscending()),e.prev=1,t.s();case 3:if((r=t.n()).done){e.next=9;break}return n=o(r.value,2),i=n[0],a=n[1],e.next=7,[i,a.value];case 7:e.next=3;break;case 9:e.next=14;break;case 11:e.prev=11,e.t0=e.catch(1),t.e(e.t0);case 14:return e.prev=14,t.f(),e.finish(14);case 17:case"end":return e.stop()}}),e,this,[[1,11,14,17]])}))},{key:"size",get:function(){if(!this._size)return this.oldCache.size;var e,t=0,r=et(this.oldCache.keys());try{for(r.s();!(e=r.n()).done;){var n=e.value;this.cache.has(n)||t++}}catch(e){r.e(e)}finally{r.f()}return Math.min(this._size+t,this.maxSize)}},{key:"entries",value:function(){return this.entriesAscending()}},{key:"forEach",value:function(e){var t,r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:this,n=et(this.entriesAscending());try{for(n.s();!(t=n.n()).done;){var i=o(t.value,2),a=i[0],s=i[1];e.call(r,s,a,this)}}catch(e){n.e(e)}finally{n.f()}}},{key:r,get:function(){return JSON.stringify(z(this.entriesAscending()))}}]),i}(w(Map),Symbol.iterator,Symbol.toStringTag);function it(e){var t=function(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],(function(){}))),!0}catch(e){return!1}}();return function(){var r,n=v(e);if(t){var i=v(this).constructor;r=Reflect.construct(n,arguments,i)}else r=n.apply(this,arguments);return m(this,r)}}function at(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])}function ot(e,t){return!(e.length=e.length?{done:!0}:{done:!1,value:e[n++]}},e:function(e){throw e},f:i}}throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}var a,o=!0,s=!1;return{s:function(){r=r.call(e)},n:function(){var e=r.next();return o=e.done,e},e:function(e){s=!0,a=e},f:function(){try{o||null==r.return||r.return()}finally{if(s)throw a}}}}function mt(e,t){(null==t||t>e.length)&&(t=e.length);for(var r=0,n=new Array(t);r2&&void 0!==arguments[2]?arguments[2]:null;b(this,e),this.offset=t,this.length=r,this.data=n}return c(e,[{key:"top",get:function(){return this.offset+this.length}}]),e}(),gt=function e(t,r,n){b(this,e),this.offset=t,this.length=r,this.blockIds=n},wt=function(e){h(n,e);var t,r=vt(n);function n(e){var t,i=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},a=i.blockSize,o=void 0===a?65536:a,s=i.cacheSize,u=void 0===s?100:s;return b(this,n),(t=r.call(this)).source=e,t.blockSize=o,t.blockCache=new nt({maxSize:u,onEviction:function(e,r){t.evictedBlocks.set(e,r)}}),t.evictedBlocks=new Map,t.blockRequests=new Map,t.blockIdsToFetch=new Set,t.abortedBlockIds=new Set,t}return c(n,[{key:"fileSize",get:function(){return this.source.fileSize}},{key:"fetch",value:(t=u(x.mark((function e(t,r){var n,i,a,o,s,u,f,c,l,h,d,p,m,v,y,g,w,b,k,A,_,I,P,S,T,U,O=this;return x.wrap((function(e){for(;;)switch(e.prev=e.next){case 0:n=[],i=[],a=[],this.evictedBlocks.clear(),o=pt(t);try{for(o.s();!(s=o.n()).done;)for(u=s.value,f=u.offset,c=u.length,l=f+c,null!==(h=this.fileSize)&&(l=Math.min(l,h)),d=Math.floor(f/this.blockSize)*this.blockSize,p=d;p0&&r)||r.aborted){e.next=41;break}this.fetchBlocks(null),A=pt(k),e.prev=21,A.s();case 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y=d;0!==m[8+y]||0!==m[16+y]||0!==m[24+y]||0!==m[32+y]||0!==m[40+y]||0!==m[48+y]||0!==m[56+y]?(i=Qr*m[0+y]+2048>>12,a=Qr*m[32+y]+2048>>12,o=m[16+y],s=m[48+y],u=$r*(m[8+y]-m[56+y])+2048>>12,l=$r*(m[8+y]+m[56+y])+2048>>12,f=m[24+y],c=m[40+y],h=i-a+1>>1,i=i+a+1>>1,a=h,h=o*Jr+s*Wr+2048>>12,o=o*Wr-s*Jr+2048>>12,s=h,h=u-c+1>>1,u=u+c+1>>1,c=h,h=l+f+1>>1,f=l-f+1>>1,l=h,h=i-s+1>>1,i=i+s+1>>1,s=h,h=a-o+1>>1,a=a+o+1>>1,o=h,h=u*Xr+l*qr+2048>>12,u=u*qr-l*Xr+2048>>12,l=h,h=f*Yr+c*Hr+2048>>12,f=f*Hr-c*Yr+2048>>12,c=h,m[0+y]=i+l,m[56+y]=i-l,m[8+y]=a+c,m[48+y]=a-c,m[16+y]=o+f,m[40+y]=o-f,m[24+y]=s+u,m[32+y]=s-u):(h=Qr*n[d+0]+8192>>14,m[0+y]=h,m[8+y]=h,m[16+y]=h,m[24+y]=h,m[32+y]=h,m[40+y]=h,m[48+y]=h,m[56+y]=h)}for(d=0;d<64;++d){var g=128+(m[d]+8>>4);r[d]=g<0?0:g>255?255:g}}for(var f=0;f>4==0)for(var l=0;l<64;l++){c[Zr[l]]=e[t++]}else{if(f>>4!=1)throw new Error("DQT: invalid table spec");for(var h=0;h<64;h++){c[Zr[h]]=r()}}this.quantizationTables[15&f]=c}break;case 65472:case 65473:case 65474:r();for(var d={extended:65473===o,progressive:65474===o,precision:e[t++],scanLines:r(),samplesPerLine:r(),components:{},componentsOrder:[]},p=e[t++],m=void 0,v=0;v>4,g=15&e[t+1],w=e[t+2];d.componentsOrder.push(m),d.components[m]={h:y,v:g,quantizationIdx:w},t+=3}n(d),this.frames.push(d);break;case 65476:for(var b=r(),k=2;k>4==0?this.huffmanTablesDC[15&x]=en(A,P):this.huffmanTablesAC[15&x]=en(A,P)}break;case 65501:r(),this.resetInterval=r();break;case 65498:r();for(var T=e[t++],U=[],O=this.frames[0],D=0;D>4],E.huffmanTableAC=this.huffmanTablesAC[15&R],U.push(E)}var M=e[t++],B=e[t++],C=e[t++],L=tn(e,t,O,U,this.resetInterval,M,B,C>>4,15&C);t+=L;break;case 65535:255!==e[t]&&t--;break;default:if(255===e[t-3]&&e[t-2]>=192&&e[t-2]<=254){t-=3;break}throw new Error("unknown JPEG marker ".concat(o.toString(16)))}o=r()}}},{key:"getResult",value:function(){var e=this.frames;if(0===this.frames.length)throw new Error("no frames were decoded");this.frames.length>1&&console.warn("more than one 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t,r,n,i,a,o=e.length,s=0;for(i=0;i>>6,t[a++]=128|63&r):r<65536?(t[a++]=224|r>>>12,t[a++]=128|r>>>6&63,t[a++]=128|63&r):(t[a++]=240|r>>>18,t[a++]=128|r>>>12&63,t[a++]=128|r>>>6&63,t[a++]=128|63&r);return t},bn=function(e,t){var r,n,i=t||e.length;if("function"==typeof TextDecoder&&TextDecoder.prototype.decode)return(new TextDecoder).decode(e.subarray(0,t));var a=new Array(2*i);for(n=0,r=0;r4)a[n++]=65533,r+=s-1;else{for(o&=2===s?31:3===s?15:7;s>1&&r1?a[n++]=65533:o<65536?a[n++]=o:(o-=65536,a[n++]=55296|o>>10&1023,a[n++]=56320|1023&o)}}}return function(e,t){if(t<65534&&e.subarray&&vn)return String.fromCharCode.apply(null,e.length===t?e:e.subarray(0,t));for(var r="",n=0;ne.length&&(t=e.length);for(var r=t-1;r>=0&&128==(192&e[r]);)r--;return r<0||0===r?t:r+yn[e[r]]>t?r:t};var xn=function(){this.input=null,this.next_in=0,this.avail_in=0,this.total_in=0,this.output=null,this.next_out=0,this.avail_out=0,this.total_out=0,this.msg="",this.state=null,this.data_type=2,this.adler=0},An=function(e,t){var r,n,i,a,o,s,u,f,c,l,h,d,p,m,v,y,g,w,b,k,x,A,_,I,P=e.state;r=e.next_in,_=e.input,n=r+(e.avail_in-5),i=e.next_out,I=e.output,a=i-(t-e.avail_out),o=i+(e.avail_out-257),s=P.dmax,u=P.wsize,f=P.whave,c=P.wnext,l=P.window,h=P.hold,d=P.bits,p=P.lencode,m=P.distcode,v=(1<>>=w=g>>>24,d-=w,0===(w=g>>>16&255))I[i++]=65535&g;else{if(!(16&w)){if(0==(64&w)){g=p[(65535&g)+(h&(1<>>=w,d-=w),d<15&&(h+=_[r++]<>>=w=g>>>24,d-=w,!(16&(w=g>>>16&255))){if(0==(64&w)){g=m[(65535&g)+(h&(1<s){e.msg="invalid distance too far back",P.mode=30;break e}if(h>>>=w,d-=w,k>(w=i-a)){if((w=k-w)>f&&P.sane){e.msg="invalid distance too far back",P.mode=30;break 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0!==S&&(i[h+S]=g-_<<24|64<<16|0),s.bits=x,0},On=hn.Z_FINISH,Dn=hn.Z_BLOCK,En=hn.Z_TREES,Rn=hn.Z_OK,Mn=hn.Z_STREAM_END,Bn=hn.Z_NEED_DICT,Cn=hn.Z_STREAM_ERROR,Ln=hn.Z_DATA_ERROR,Fn=hn.Z_MEM_ERROR,Vn=hn.Z_BUF_ERROR,Gn=hn.Z_DEFLATED,jn=12,zn=30,Nn=function(e){return(e>>>24&255)+(e>>>8&65280)+((65280&e)<<8)+((255&e)<<24)};function Kn(){this.mode=0,this.last=!1,this.wrap=0,this.havedict=!1,this.flags=0,this.dmax=0,this.check=0,this.total=0,this.head=null,this.wbits=0,this.wsize=0,this.whave=0,this.wnext=0,this.window=null,this.hold=0,this.bits=0,this.length=0,this.offset=0,this.extra=0,this.lencode=null,this.distcode=null,this.lenbits=0,this.distbits=0,this.ncode=0,this.nlen=0,this.ndist=0,this.have=0,this.next=null,this.lens=new Uint16Array(320),this.work=new Uint16Array(288),this.lendyn=null,this.distdyn=null,this.sane=0,this.back=0,this.was=0}var Zn,Hn,Yn=function(e){if(!e||!e.state)return Cn;var t=e.state;return e.total_in=e.total_out=t.total=0,e.msg="",t.wrap&&(e.adler=1&t.wrap),t.mode=1,t.last=0,t.havedict=0,t.dmax=32768,t.head=null,t.hold=0,t.bits=0,t.lencode=t.lendyn=new Int32Array(852),t.distcode=t.distdyn=new Int32Array(592),t.sane=1,t.back=-1,Rn},qn=function(e){if(!e||!e.state)return Cn;var t=e.state;return t.wsize=0,t.whave=0,t.wnext=0,Yn(e)},Xn=function(e,t){var r;if(!e||!e.state)return Cn;var n=e.state;return t<0?(r=0,t=-t):(r=1+(t>>4),t<48&&(t&=15)),t&&(t<8||t>15)?Cn:(null!==n.window&&n.wbits!==t&&(n.window=null),n.wrap=r,n.wbits=t,qn(e))},Wn=function(e,t){if(!e)return Cn;var r=new Kn;e.state=r,r.window=null;var n=Xn(e,t);return n!==Rn&&(e.state=null),n},Jn=!0,Qn=function(e){if(Jn){Zn=new Int32Array(512),Hn=new Int32Array(32);for(var t=0;t<144;)e.lens[t++]=8;for(;t<256;)e.lens[t++]=9;for(;t<280;)e.lens[t++]=7;for(;t<288;)e.lens[t++]=8;for(Un(1,e.lens,0,288,Zn,0,e.work,{bits:9}),t=0;t<32;)e.lens[t++]=5;Un(2,e.lens,0,32,Hn,0,e.work,{bits:5}),Jn=!1}e.lencode=Zn,e.lenbits=9,e.distcode=Hn,e.distbits=5},$n=function(e,t,r,n){var i,a=e.state;return null===a.window&&(a.wsize=1<=a.wsize?(a.window.set(t.subarray(r-a.wsize,r),0),a.wnext=0,a.whave=a.wsize):((i=a.wsize-a.wnext)>n&&(i=n),a.window.set(t.subarray(r-n,r-n+i),a.wnext),(n-=i)?(a.window.set(t.subarray(r-n,r),0),a.wnext=n,a.whave=a.wsize):(a.wnext+=i,a.wnext===a.wsize&&(a.wnext=0),a.whave>>8&255,r.check=cn(r.check,S,2,0),f=0,c=0,r.mode=2;break}if(r.flags=0,r.head&&(r.head.done=!1),!(1&r.wrap)||(((255&f)<<8)+(f>>8))%31){e.msg="incorrect header check",r.mode=zn;break}if((15&f)!==Gn){e.msg="unknown compression method",r.mode=zn;break}if(c-=4,x=8+(15&(f>>>=4)),0===r.wbits)r.wbits=x;else if(x>r.wbits){e.msg="invalid window size",r.mode=zn;break}r.dmax=1<>8&1),512&r.flags&&(S[0]=255&f,S[1]=f>>>8&255,r.check=cn(r.check,S,2,0)),f=0,c=0,r.mode=3;case 3:for(;c<32;){if(0===s)break e;s--,f+=n[a++]<>>8&255,S[2]=f>>>16&255,S[3]=f>>>24&255,r.check=cn(r.check,S,4,0)),f=0,c=0,r.mode=4;case 4:for(;c<16;){if(0===s)break e;s--,f+=n[a++]<>8),512&r.flags&&(S[0]=255&f,S[1]=f>>>8&255,r.check=cn(r.check,S,2,0)),f=0,c=0,r.mode=5;case 5:if(1024&r.flags){for(;c<16;){if(0===s)break e;s--,f+=n[a++]<>>8&255,r.check=cn(r.check,S,2,0)),f=0,c=0}else r.head&&(r.head.extra=null);r.mode=6;case 6:if(1024&r.flags&&((d=r.length)>s&&(d=s),d&&(r.head&&(x=r.head.extra_len-r.length,r.head.extra||(r.head.extra=new Uint8Array(r.head.extra_len)),r.head.extra.set(n.subarray(a,a+d),x)),512&r.flags&&(r.check=cn(r.check,n,d,a)),s-=d,a+=d,r.length-=d),r.length))break e;r.length=0,r.mode=7;case 7:if(2048&r.flags){if(0===s)break e;d=0;do{x=n[a+d++],r.head&&x&&r.length<65536&&(r.head.name+=String.fromCharCode(x))}while(x&&d>9&1,r.head.done=!0),e.adler=r.check=0,r.mode=jn;break;case 10:for(;c<32;){if(0===s)break e;s--,f+=n[a++]<>>=7&c,c-=7&c,r.mode=27;break}for(;c<3;){if(0===s)break e;s--,f+=n[a++]<>>=1)){case 0:r.mode=14;break;case 1:if(Qn(r),r.mode=20,t===En){f>>>=2,c-=2;break e}break;case 2:r.mode=17;break;case 3:e.msg="invalid block type",r.mode=zn}f>>>=2,c-=2;break;case 14:for(f>>>=7&c,c-=7&c;c<32;){if(0===s)break e;s--,f+=n[a++]<>>16^65535)){e.msg="invalid stored block lengths",r.mode=zn;break}if(r.length=65535&f,f=0,c=0,r.mode=15,t===En)break e;case 15:r.mode=16;case 16:if(d=r.length){if(d>s&&(d=s),d>u&&(d=u),0===d)break e;i.set(n.subarray(a,a+d),o),s-=d,a+=d,u-=d,o+=d,r.length-=d;break}r.mode=jn;break;case 17:for(;c<14;){if(0===s)break e;s--,f+=n[a++]<>>=5,c-=5,r.ndist=1+(31&f),f>>>=5,c-=5,r.ncode=4+(15&f),f>>>=4,c-=4,r.nlen>286||r.ndist>30){e.msg="too many length or distance symbols",r.mode=zn;break}r.have=0,r.mode=18;case 18:for(;r.have>>=3,c-=3}for(;r.have<19;)r.lens[T[r.have++]]=0;if(r.lencode=r.lendyn,r.lenbits=7,_={bits:r.lenbits},A=Un(0,r.lens,0,19,r.lencode,0,r.work,_),r.lenbits=_.bits,A){e.msg="invalid code lengths set",r.mode=zn;break}r.have=0,r.mode=19;case 19:for(;r.have>>16&255,g=65535&P,!((v=P>>>24)<=c);){if(0===s)break e;s--,f+=n[a++]<>>=v,c-=v,r.lens[r.have++]=g;else{if(16===g){for(I=v+2;c>>=v,c-=v,0===r.have){e.msg="invalid bit length repeat",r.mode=zn;break}x=r.lens[r.have-1],d=3+(3&f),f>>>=2,c-=2}else if(17===g){for(I=v+3;c>>=v)),f>>>=3,c-=3}else{for(I=v+7;c>>=v)),f>>>=7,c-=7}if(r.have+d>r.nlen+r.ndist){e.msg="invalid bit length repeat",r.mode=zn;break}for(;d--;)r.lens[r.have++]=x}}if(r.mode===zn)break;if(0===r.lens[256]){e.msg="invalid code -- missing end-of-block",r.mode=zn;break}if(r.lenbits=9,_={bits:r.lenbits},A=Un(1,r.lens,0,r.nlen,r.lencode,0,r.work,_),r.lenbits=_.bits,A){e.msg="invalid literal/lengths set",r.mode=zn;break}if(r.distbits=6,r.distcode=r.distdyn,_={bits:r.distbits},A=Un(2,r.lens,r.nlen,r.ndist,r.distcode,0,r.work,_),r.distbits=_.bits,A){e.msg="invalid distances set",r.mode=zn;break}if(r.mode=20,t===En)break e;case 20:r.mode=21;case 21:if(s>=6&&u>=258){e.next_out=o,e.avail_out=u,e.next_in=a,e.avail_in=s,r.hold=f,r.bits=c,An(e,h),o=e.next_out,i=e.output,u=e.avail_out,a=e.next_in,n=e.input,s=e.avail_in,f=r.hold,c=r.bits,r.mode===jn&&(r.back=-1);break}for(r.back=0;y=(P=r.lencode[f&(1<>>16&255,g=65535&P,!((v=P>>>24)<=c);){if(0===s)break e;s--,f+=n[a++]<>w)])>>>16&255,g=65535&P,!(w+(v=P>>>24)<=c);){if(0===s)break e;s--,f+=n[a++]<>>=w,c-=w,r.back+=w}if(f>>>=v,c-=v,r.back+=v,r.length=g,0===y){r.mode=26;break}if(32&y){r.back=-1,r.mode=jn;break}if(64&y){e.msg="invalid literal/length code",r.mode=zn;break}r.extra=15&y,r.mode=22;case 22:if(r.extra){for(I=r.extra;c>>=r.extra,c-=r.extra,r.back+=r.extra}r.was=r.length,r.mode=23;case 23:for(;y=(P=r.distcode[f&(1<>>16&255,g=65535&P,!((v=P>>>24)<=c);){if(0===s)break e;s--,f+=n[a++]<>w)])>>>16&255,g=65535&P,!(w+(v=P>>>24)<=c);){if(0===s)break e;s--,f+=n[a++]<>>=w,c-=w,r.back+=w}if(f>>>=v,c-=v,r.back+=v,64&y){e.msg="invalid distance code",r.mode=zn;break}r.offset=g,r.extra=15&y,r.mode=24;case 24:if(r.extra){for(I=r.extra;c>>=r.extra,c-=r.extra,r.back+=r.extra}if(r.offset>r.dmax){e.msg="invalid distance too far back",r.mode=zn;break}r.mode=25;case 25:if(0===u)break e;if(d=h-u,r.offset>d){if((d=r.offset-d)>r.whave&&r.sane){e.msg="invalid distance too far back",r.mode=zn;break}d>r.wnext?(d-=r.wnext,p=r.wsize-d):p=r.wnext-d,d>r.length&&(d=r.length),m=r.window}else m=i,p=o-r.offset,d=r.length;d>u&&(d=u),u-=d,r.length-=d;do{i[o++]=m[p++]}while(--d);0===r.length&&(r.mode=21);break;case 26:if(0===u)break e;i[o++]=r.length,u--,r.mode=21;break;case 27:if(r.wrap){for(;c<32;){if(0===s)break e;s--,f|=n[a++]<=0&&t.windowBits<16&&(t.windowBits=-t.windowBits,0===t.windowBits&&(t.windowBits=-15)),!(t.windowBits>=0&&t.windowBits<16)||e&&e.windowBits||(t.windowBits+=32),t.windowBits>15&&t.windowBits<48&&0==(15&t.windowBits)&&(t.windowBits|=15),this.err=0,this.msg="",this.ended=!1,this.chunks=[],this.strm=new xn,this.strm.avail_out=0;var r=ei.inflateInit2(this.strm,t.windowBits);if(r!==ai)throw new Error(ln[r]);if(this.header=new ti,ei.inflateGetHeader(this.strm,this.header),t.dictionary&&("string"==typeof t.dictionary?t.dictionary=wn(t.dictionary):"[object ArrayBuffer]"===ri.call(t.dictionary)&&(t.dictionary=new Uint8Array(t.dictionary)),t.raw&&(r=ei.inflateSetDictionary(this.strm,t.dictionary))!==ai))throw new Error(ln[r])}function hi(e,t){var r=new li(t);if(r.push(e),r.err)throw r.msg||ln[r.err];return r.result}li.prototype.push=function(e,t){var r,n,i,a=this.strm,o=this.options.chunkSize,s=this.options.dictionary;if(this.ended)return!1;for(n=t===~~t?t:!0===t?ii:ni,"[object ArrayBuffer]"===ri.call(e)?a.input=new Uint8Array(e):a.input=e,a.next_in=0,a.avail_in=a.input.length;;){for(0===a.avail_out&&(a.output=new Uint8Array(o),a.next_out=0,a.avail_out=o),(r=ei.inflate(a,n))===si&&s&&((r=ei.inflateSetDictionary(a,s))===ai?r=ei.inflate(a,n):r===fi&&(r=si));a.avail_in>0&&r===oi&&a.state.wrap>0&&0!==e[a.next_in];)ei.inflateReset(a),r=ei.inflate(a,n);switch(r){case ui:case fi:case si:case ci:return this.onEnd(r),this.ended=!0,!1}if(i=a.avail_out,a.next_out&&(0===a.avail_out||r===oi))if("string"===this.options.to){var u=kn(a.output,a.next_out),f=a.next_out-u,c=bn(a.output,u);a.next_out=f,a.avail_out=o-f,f&&a.output.set(a.output.subarray(u,u+f),0),this.onData(c)}else this.onData(a.output.length===a.next_out?a.output:a.output.subarray(0,a.next_out));if(r!==ai||0!==i){if(r===oi)return r=ei.inflateEnd(this.strm),this.onEnd(r),this.ended=!0,!0;if(0===a.avail_in)break}}return!0},li.prototype.onData=function(e){this.chunks.push(e)},li.prototype.onEnd=function(e){e===ai&&("string"===this.options.to?this.result=this.chunks.join(""):this.result=mn(this.chunks)),this.chunks=[],this.err=e,this.msg=this.strm.msg};var di={Inflate:li,inflate:hi,inflateRaw:function(e,t){return(t=t||{}).raw=!0,hi(e,t)},ungzip:hi,constants:hn}.inflate;function pi(e){var t=function(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],(function(){}))),!0}catch(e){return!1}}();return function(){var r,n=v(e);if(t){var i=v(this).constructor;r=Reflect.construct(n,arguments,i)}else r=n.apply(this,arguments);return m(this,r)}}var mi=function(e){h(r,e);var t=pi(r);function r(){return b(this,r),t.apply(this,arguments)}return c(r,[{key:"decodeBlock",value:function(e){return di(new Uint8Array(e)).buffer}}]),r}(wr),vi=Object.freeze({__proto__:null,default:mi});function yi(e){var t=function(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],(function(){}))),!0}catch(e){return!1}}();return function(){var r,n=v(e);if(t){var i=v(this).constructor;r=Reflect.construct(n,arguments,i)}else r=n.apply(this,arguments);return m(this,r)}}var gi=function(e){h(r,e);var t=yi(r);function r(){return b(this,r),t.apply(this,arguments)}return c(r,[{key:"decodeBlock",value:function(e){for(var t=new DataView(e),r=[],n=0;n>3],P<<=7&S),v=0;v>3]),128&P?(u&&(u[S]=1),m=m>(a=U.encoding<2?A[_++]:I)?a:m,s[S++]=a):(u&&(u[S]=0),s[S++]=n),P<<=1;S+=T}else if(U.encoding<2)for(y=0;y(a=A[_++])?a:m,s[S++]=a;S+=T}else for(m=m>I?I:m,y=0;y0){var o=new Uint8Array(Math.ceil(n.width*n.height/8)),s=(a=new DataView(e,t,n.mask.numBytes)).getInt16(0,!0),u=2,f=0;do{if(s>0)for(;s--;)o[f++]=a.getUint8(u++);else{var c=a.getUint8(u++);for(s=-s;s--;)o[f++]=c}s=a.getInt16(u,!0),u+=2}while(u0?1:0),p=h+(n.height%h>0?1:0);n.pixels.blocks=new Array(d*p);for(var m=0,v=0;v3)throw"Invalid block encoding ("+b.encoding+")";if(2!==b.encoding){if(0!==k&&2!==k){if(k>>=6,b.offsetType=k,2===k)b.offset=a.getInt8(1),g++;else if(1===k)b.offset=a.getInt16(1,!0),g+=2;else{if(0!==k)throw"Invalid block offset type";b.offset=a.getFloat32(1,!0),g+=4}if(1===b.encoding)if(k=a.getUint8(g),g++,b.bitsPerPixel=63&k,k>>=6,b.numValidPixelsType=k,2===k)b.numValidPixels=a.getUint8(g),g++;else if(1===k)b.numValidPixels=a.getUint16(g,!0),g+=2;else{if(0!==k)throw"Invalid valid pixel count type";b.numValidPixels=a.getUint32(g,!0),g+=4}}var x;if(t+=g,3!==b.encoding)if(0===b.encoding){var A=(n.pixels.numBytes-1)/4;if(A!==Math.floor(A))throw"uncompressed block has invalid length";x=new ArrayBuffer(4*A),new Uint8Array(x).set(new Uint8Array(e,t,4*A));var _=new Float32Array(x);b.rawData=_,t+=4*A}else if(1===b.encoding){var I=Math.ceil(b.numValidPixels*b.bitsPerPixel/8),P=Math.ceil(I/4);x=new ArrayBuffer(4*P),new Uint8Array(x).set(new Uint8Array(e,t,I)),b.stuffedData=new Uint32Array(x),t+=I}}else t++}return n.eofOffset=t,n},o=function(e,t,r,n,i,a,o){var s,u,f,c=(1<=t)u=f>>>h-t&c,h-=t;else{var m=t-h;u=(f&c)<>>(h=32-m)}a[s]=u=r?(f=c>>>m-r&d,m-=r):(f=(c&d)<<(l=r-m)&d,f+=(c=e[p++])>>>(m=32-l)),t[u]=i[f];else for(h=Math.ceil((s-a)/o),u=0;u=r?(f=c>>>m-r&d,m-=r):(f=(c&d)<<(l=r-m)&d,f+=(c=e[p++])>>>(m=32-l)),t[u]=f=t?(h=o>>>l-t&s,l-=t):(h=(o&s)<<(c=t-l)&s,h+=(o=e[u++])>>>(l=32-c)),d[f]=h=r?(f=c>>>m&h,p-=r,m+=r):(f=c>>>m&h,p=32-(l=r-p),f|=((c=e[d++])&(1<=r?(f=c>>>m&h,p-=r,m+=r):(f=c>>>m&h,p=32-(l=r-p),f|=((c=e[d++])&(1<=t?(h=o>>>d&s,l-=t,d+=t):(h=o>>>d&s,l=32-(c=t-l),h|=((o=e[u++])&(1<=r?(a=o>>>c-r&u,c-=r):(a=(o&u)<<(s=r-c)&u,a+=(o=e[f++])>>>(c=32-s)),t[i]=a;return t},a=function(e,t,r,n){var i,a,o,s,u=(1<=r?(a=o>>>l&u,c-=r,l+=r):(a=o>>>l&u,c=32-(s=r-c),a|=((o=e[f++])&(1<=359?359:i;i-=o;do{t+=e[a++]<<8,r+=t+=e[a++]}while(--o);t=(65535&t)+(t>>>16),r=(65535&r)+(r>>>16)}return 1&n&&(r+=t+=e[a]<<8),((r=(65535&r)+(r>>>16))<<16|(t=(65535&t)+(t>>>16)))>>>0},readHeaderInfo:function(e,t){var r=t.ptr,n=new Uint8Array(e,r,6),i={};if(i.fileIdentifierString=String.fromCharCode.apply(null,n),0!==i.fileIdentifierString.lastIndexOf("Lerc2",0))throw"Unexpected file identifier string (expect Lerc2 ): "+i.fileIdentifierString;r+=6;var a,o=new DataView(e,r,8),s=o.getInt32(0,!0);if(i.fileVersion=s,r+=4,s>=3&&(i.checksum=o.getUint32(4,!0),r+=4),o=new DataView(e,r,12),i.height=o.getUint32(0,!0),i.width=o.getUint32(4,!0),r+=8,s>=4?(i.numDims=o.getUint32(8,!0),r+=4):i.numDims=1,o=new DataView(e,r,40),i.numValidPixel=o.getUint32(0,!0),i.microBlockSize=o.getInt32(4,!0),i.blobSize=o.getInt32(8,!0),i.imageType=o.getInt32(12,!0),i.maxZError=o.getFloat64(16,!0),i.zMin=o.getFloat64(24,!0),i.zMax=o.getFloat64(32,!0),r+=40,t.headerInfo=i,t.ptr=r,s>=3&&(a=s>=4?52:48,this.computeChecksumFletcher32(new Uint8Array(e,r-a,i.blobSize-14))!==i.checksum))throw"Checksum failed.";return!0},checkMinMaxRanges:function(e,t){var r=t.headerInfo,n=this.getDataTypeArray(r.imageType),i=r.numDims*this.getDataTypeSize(r.imageType),a=this.readSubArray(e,t.ptr,n,i),o=this.readSubArray(e,t.ptr+i,n,i);t.ptr+=2*i;var s,u=!0;for(s=0;s0){r=new Uint8Array(Math.ceil(o/8));var c=(u=new DataView(e,i,f.numBytes)).getInt16(0,!0),l=2,h=0,d=0;do{if(c>0)for(;c--;)r[h++]=u.getUint8(l++);else for(d=u.getUint8(l++),c=-c;c--;)r[h++]=d;c=u.getInt16(l,!0),l+=2}while(l>3],p<<=7&m):p=r[m>>3],128&p&&(n[m]=1);t.pixels.resultMask=n,f.bitset=r,i+=f.numBytes}return t.ptr=i,t.mask=f,!0},readDataOneSweep:function(e,t,r,n){var i,a=t.ptr,s=t.headerInfo,u=s.numDims,f=s.width*s.height,c=s.imageType,l=s.numValidPixel*o.getDataTypeSize(c)*u,h=t.pixels.resultMask;if(r===Uint8Array)i=new Uint8Array(e,a,l);else{var d=new ArrayBuffer(l);new Uint8Array(d).set(new Uint8Array(e,a,l)),i=new r(d)}if(i.length===f*u)t.pixels.resultPixels=n?o.swapDimensionOrder(i,f,u,r,!0):i;else{t.pixels.resultPixels=new r(f*u);var p=0,m=0,v=0,y=0;if(u>1){if(n){for(m=0;m=u)return!1;var f=new Uint32Array(u-a);o.decodeBits(e,t,f);var c,l,h,d,p=[];for(c=a;c0&&(p[l].second=g<>>32-d,32-b>=d?32===(b+=d)&&(b=0,g=w[++k]):(b+=d-32,g=w[++k],p[l].second|=g>>>32-b));var x=0,A=0,_=new s;for(c=0;c=r?r:x;var I,P,S,T,U,O=[];for(c=a;c0)if(I=[d,l],d<=A)for(P=p[l].second<=0;T--)P>>>T&1?(U.right||(U.right=new s),U=U.right):(U.left||(U.left=new s),U=U.left),0!==T||U.val||(U.val=I[1]);return{decodeLut:O,numBitsLUTQick:A,numBitsLUT:x,tree:_,stuffedData:w,srcPtr:k,bitPos:b}},readHuffman:function(e,t,r,n){var i,a,s,u,f,c,l,h,d,p=t.headerInfo.numDims,m=t.headerInfo.height,v=t.headerInfo.width,y=v*m,g=this.readHuffmanTree(e,t),w=g.decodeLut,b=g.tree,k=g.stuffedData,x=g.srcPtr,A=g.bitPos,_=g.numBitsLUTQick,I=g.numBitsLUT,P=0===t.headerInfo.imageType?128:0,S=t.pixels.resultMask,T=0;A>0&&(x++,A=0);var U,O=k[x],D=1===t.encodeMode,E=new r(y*p),R=E;if(p<2||D){for(U=0;U1&&(R=new r(E.buffer,y*U,y),T=0),t.headerInfo.numValidPixel===v*m)for(h=0,c=0;c>>32-_,32-A<_&&(f=u|=k[x+1]>>>64-A-_),w[f])a=w[f][1],A+=w[f][0];else for(f=u=O<>>32-I,32-A>>64-A-I),i=b,d=0;d>>I-d-1&1?i.right:i.left).left&&!i.right){a=i.val,A=A+d+1;break}A>=32&&(A-=32,O=k[++x]),s=a-P,D?(s+=l>0?T:c>0?R[h-v]:T,s&=255,R[h]=s,T=s):R[h]=s}else for(h=0,c=0;c>>32-_,32-A<_&&(f=u|=k[x+1]>>>64-A-_),w[f])a=w[f][1],A+=w[f][0];else for(f=u=O<>>32-I,32-A>>64-A-I),i=b,d=0;d>>I-d-1&1?i.right:i.left).left&&!i.right){a=i.val,A=A+d+1;break}A>=32&&(A-=32,O=k[++x]),s=a-P,D?(l>0&&S[h-1]?s+=T:c>0&&S[h-v]?s+=R[h-v]:s+=T,s&=255,R[h]=s,T=s):R[h]=s}}else for(h=0,c=0;c>>32-_,32-A<_&&(f=u|=k[x+1]>>>64-A-_),w[f])a=w[f][1],A+=w[f][0];else for(f=u=O<>>32-I,32-A>>64-A-I),i=b,d=0;d>>I-d-1&1?i.right:i.left).left&&!i.right){a=i.val,A=A+d+1;break}A>=32&&(A-=32,O=k[++x]),s=a-P,R[h]=s}t.ptr=t.ptr+4*(x+1)+(A>0?4:0),t.pixels.resultPixels=E,p>1&&!n&&(t.pixels.resultPixels=o.swapDimensionOrder(E,y,p,r))},decodeBits:function(o,s,u,f,c){var l=s.headerInfo,h=l.fileVersion,d=0,p=o.byteLength-s.ptr>=5?5:o.byteLength-s.ptr,m=new DataView(o,s.ptr,p),v=m.getUint8(0);d++;var y=v>>6,g=0===y?4:3-y,w=(32&v)>0,b=31&v,k=0;if(1===g)k=m.getUint8(d),d++;else if(2===g)k=m.getUint16(d,!0),d+=2;else{if(4!==g)throw"Invalid valid pixel count type";k=m.getUint32(d,!0),d+=4}var x,A,_,I,P,S,T,U,O,D=2*l.maxZError,E=l.numDims>1?l.maxValues[c]:l.zMax;if(w){for(s.counter.lut++,U=m.getUint8(d),d++,I=Math.ceil((U-1)*b/8),P=Math.ceil(I/4),A=new ArrayBuffer(4*P),_=new Uint8Array(A),s.ptr+=d,_.set(new Uint8Array(o,s.ptr,I)),T=new Uint32Array(A),s.ptr+=I,O=0;U-1>>>O;)O++;I=Math.ceil(k*O/8),P=Math.ceil(I/4),A=new ArrayBuffer(4*P),(_=new Uint8Array(A)).set(new Uint8Array(o,s.ptr,I)),x=new Uint32Array(A),s.ptr+=I,S=h>=3?n(T,b,U-1,f,D,E):t(T,b,U-1,f,D,E),h>=3?r(x,u,O,k,S):e(x,u,O,k,S)}else s.counter.bitstuffer++,O=b,s.ptr+=d,O>0&&(I=Math.ceil(k*O/8),P=Math.ceil(I/4),A=new ArrayBuffer(4*P),(_=new Uint8Array(A)).set(new Uint8Array(o,s.ptr,I)),x=new Uint32Array(A),s.ptr+=I,h>=3?null==f?a(x,u,O,k):r(x,u,O,k,!1,f,D,E):null==f?i(x,u,O,k):e(x,u,O,k,!1,f,D,E))},readTiles:function(e,t,r,n){var i=t.headerInfo,a=i.width,s=i.height,u=a*s,f=i.microBlockSize,c=i.imageType,l=o.getDataTypeSize(c),h=Math.ceil(a/f),d=Math.ceil(s/f);t.pixels.numBlocksY=d,t.pixels.numBlocksX=h,t.pixels.ptr=0;var p,m,v,y,g,w,b,k,x,A,_=0,I=0,P=0,S=0,T=0,U=0,O=0,D=0,E=0,R=0,M=0,B=0,C=0,L=0,F=0,V=new r(f*f),G=s%f||f,j=a%f||f,z=i.numDims,N=t.pixels.resultMask,K=t.pixels.resultPixels,Z=i.fileVersion>=5?14:15,H=i.zMax;for(P=0;P1?(A=K,R=P*a*f+S*f,K=new r(t.pixels.resultPixels.buffer,u*k*l,u),H=i.maxValues[k]):A=null,O=e.byteLength-t.ptr,m={},F=0,D=(p=new DataView(e,t.ptr,Math.min(10,O))).getUint8(0),F++,x=i.fileVersion>=5?4&D:0,E=D>>6&255,(D>>2&Z)!==(S*f>>3&Z))throw"integrity issue";if(x&&0===k)throw"integrity issue";if((g=3&D)>3)throw t.ptr+=F,"Invalid block encoding ("+g+")";if(2!==g)if(0===g){if(x)throw"integrity issue";if(t.counter.uncompressed++,t.ptr+=F,B=(B=T*U*l)<(C=e.byteLength-t.ptr)?B:C,v=new ArrayBuffer(B%l==0?B:B+l-B%l),new Uint8Array(v).set(new Uint8Array(e,t.ptr,B)),y=new r(v),L=0,N)for(_=0;_1&&!n&&(t.pixels.resultPixels=o.swapDimensionOrder(t.pixels.resultPixels,u,z,r))},formatFileInfo:function(e){return{fileIdentifierString:e.headerInfo.fileIdentifierString,fileVersion:e.headerInfo.fileVersion,imageType:e.headerInfo.imageType,height:e.headerInfo.height,width:e.headerInfo.width,numValidPixel:e.headerInfo.numValidPixel,microBlockSize:e.headerInfo.microBlockSize,blobSize:e.headerInfo.blobSize,maxZError:e.headerInfo.maxZError,pixelType:o.getPixelType(e.headerInfo.imageType),eofOffset:e.eofOffset,mask:e.mask?{numBytes:e.mask.numBytes}:null,pixels:{numBlocksX:e.pixels.numBlocksX,numBlocksY:e.pixels.numBlocksY,maxValue:e.headerInfo.zMax,minValue:e.headerInfo.zMin,noDataValue:e.noDataValue}}},constructConstantSurface:function(e,t){var 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h(r,[{key:"decodeBlock",value:function(e){return Fe(new Uint8Array(e)).buffer}}]),r}(),Ne=Object.freeze({__proto__:null,default:je});function Ze(e){var t=function(){if("undefined"==typeof Reflect||!Reflect.construct)return!1;if(Reflect.construct.sham)return!1;if("function"==typeof Proxy)return!0;try{return Boolean.prototype.valueOf.call(Reflect.construct(Boolean,[],(function(){}))),!0}catch(e){return!1}}();return function(){var r,n=v(e);if(t){var i=v(this).constructor;r=Reflect.construct(n,arguments,i)}else r=n.apply(this,arguments);return m(this,r)}}var Ke,He=function(e){p(r,b);var t=Ze(r);function r(){return u(this,r),t.apply(this,arguments)}return h(r,[{key:"decodeBlock",value:function(e){for(var t=new DataView(e),r=[],n=0;n>3],I<<=7&U),v=0;v>3]),128&I?(f&&(f[U]=1),m=m>(o=T.encoding<2?_[A++]:P)?o:m,s[U++]=o):(f&&(f[U]=0),s[U++]=n),I<<=1;U+=S}else if(T.encoding<2)for(y=0;y(o=_[A++])?o:m,s[U++]=o;U+=S}else for(m=m>P?P:m,y=0;y0){var o=new Uint8Array(Math.ceil(n.width*n.height/8)),s=(a=new DataView(e,t,n.mask.numBytes)).getInt16(0,!0),f=2,l=0;do{if(s>0)for(;s--;)o[l++]=a.getUint8(f++);else{var u=a.getUint8(f++);for(s=-s;s--;)o[l++]=u}s=a.getInt16(f,!0),f+=2}while(f0?1:0),p=h+(n.height%h>0?1:0);n.pixels.blocks=new Array(d*p);for(var m=0,v=0;v3)throw"Invalid block encoding ("+b.encoding+")";if(2!==b.encoding){if(0!==k&&2!==k){if(k>>=6,b.offsetType=k,2===k)b.offset=a.getInt8(1),w++;else if(1===k)b.offset=a.getInt16(1,!0),w+=2;else{if(0!==k)throw"Invalid block offset type";b.offset=a.getFloat32(1,!0),w+=4}if(1===b.encoding)if(k=a.getUint8(w),w++,b.bitsPerPixel=63&k,k>>=6,b.numValidPixelsType=k,2===k)b.numValidPixels=a.getUint8(w),w++;else if(1===k)b.numValidPixels=a.getUint16(w,!0),w+=2;else{if(0!==k)throw"Invalid valid pixel count type";b.numValidPixels=a.getUint32(w,!0),w+=4}}var x;if(t+=w,3!==b.encoding)if(0===b.encoding){var _=(n.pixels.numBytes-1)/4;if(_!==Math.floor(_))throw"uncompressed block has invalid length";x=new 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t},c=function(e,t,r,n){var i,a,o,s,f=(1<=r?(a=o>>>c&f,u-=r,c+=r):(a=o>>>c&f,u=32-(s=r-u),a|=((o=e[l++])&(1<=359?359:i;i-=o;do{t+=e[a++]<<8,r+=t+=e[a++]}while(--o);t=(65535&t)+(t>>>16),r=(65535&r)+(r>>>16)}return 1&n&&(r+=t+=e[a]<<8),((r=(65535&r)+(r>>>16))<<16|(t=(65535&t)+(t>>>16)))>>>0},readHeaderInfo:function(e,t){var r=t.ptr,n=new Uint8Array(e,r,6),i={};if(i.fileIdentifierString=String.fromCharCode.apply(null,n),0!==i.fileIdentifierString.lastIndexOf("Lerc2",0))throw"Unexpected file identifier string (expect Lerc2 ): "+i.fileIdentifierString;r+=6;var a,o=new DataView(e,r,8),s=o.getInt32(0,!0);if(i.fileVersion=s,r+=4,s>=3&&(i.checksum=o.getUint32(4,!0),r+=4),o=new DataView(e,r,12),i.height=o.getUint32(0,!0),i.width=o.getUint32(4,!0),r+=8,s>=4?(i.numDims=o.getUint32(8,!0),r+=4):i.numDims=1,o=new DataView(e,r,40),i.numValidPixel=o.getUint32(0,!0),i.microBlockSize=o.getInt32(4,!0),i.blobSize=o.getInt32(8,!0),i.imageType=o.getInt32(12,!0),i.maxZError=o.getFloat64(16,!0),i.zMin=o.getFloat64(24,!0),i.zMax=o.getFloat64(32,!0),r+=40,t.headerInfo=i,t.ptr=r,s>=3&&(a=s>=4?52:48,this.computeChecksumFletcher32(new Uint8Array(e,r-a,i.blobSize-14))!==i.checksum))throw"Checksum failed.";return!0},checkMinMaxRanges:function(e,t){var r=t.headerInfo,n=this.getDataTypeArray(r.imageType),i=r.numDims*this.getDataTypeSize(r.imageType),a=this.readSubArray(e,t.ptr,n,i),o=this.readSubArray(e,t.ptr+i,n,i);t.ptr+=2*i;var s,f=!0;for(s=0;s0){r=new Uint8Array(Math.ceil(o/8));var u=(f=new DataView(e,i,l.numBytes)).getInt16(0,!0),c=2,h=0,d=0;do{if(u>0)for(;u--;)r[h++]=f.getUint8(c++);else for(d=f.getUint8(c++),u=-u;u--;)r[h++]=d;u=f.getInt16(c,!0),c+=2}while(c>3],p<<=7&m):p=r[m>>3],128&p&&(n[m]=1);t.pixels.resultMask=n,l.bitset=r,i+=l.numBytes}return t.ptr=i,t.mask=l,!0},readDataOneSweep:function(e,t,r,n){var i,a=t.ptr,o=t.headerInfo,s=o.numDims,f=o.width*o.height,l=o.imageType,u=o.numValidPixel*h.getDataTypeSize(l)*s,c=t.pixels.resultMask;if(r===Uint8Array)i=new Uint8Array(e,a,u);else{var d=new ArrayBuffer(u);new Uint8Array(d).set(new Uint8Array(e,a,u)),i=new r(d)}if(i.length===f*s)t.pixels.resultPixels=n?h.swapDimensionOrder(i,f,s,r,!0):i;else{t.pixels.resultPixels=new r(f*s);var p=0,m=0,v=0,y=0;if(s>1){if(n){for(m=0;m=o)return!1;var s=new Uint32Array(o-a);h.decodeBits(e,t,s);var f,l,u,c,p=[];for(f=a;f0&&(p[l].second=w<>>32-c,32-b>=c?32===(b+=c)&&(b=0,w=g[++k]):(b+=c-32,w=g[++k],p[l].second|=w>>>32-b));var x=0,_=0,A=new d;for(f=0;f=r?r:x;var P,I,U,S,T,D=[];for(f=a;f0)if(P=[c,l],c<=_)for(I=p[l].second<<_-c,U=1<<_-c,u=0;u=0;S--)I>>>S&1?(T.right||(T.right=new d),T=T.right):(T.left||(T.left=new d),T=T.left),0!==S||T.val||(T.val=P[1]);return{decodeLut:D,numBitsLUTQick:_,numBitsLUT:x,tree:A,stuffedData:g,srcPtr:k,bitPos:b}},readHuffman:function(e,t,r,n){var i,a,o,s,f,l,u,c,d,p=t.headerInfo.numDims,m=t.headerInfo.height,v=t.headerInfo.width,y=v*m,w=this.readHuffmanTree(e,t),g=w.decodeLut,b=w.tree,k=w.stuffedData,x=w.srcPtr,_=w.bitPos,A=w.numBitsLUTQick,P=w.numBitsLUT,I=0===t.headerInfo.imageType?128:0,U=t.pixels.resultMask,S=0;_>0&&(x++,_=0);var T,D=k[x],E=1===t.encodeMode,B=new r(y*p),O=B;if(p<2||E){for(T=0;T1&&(O=new r(B.buffer,y*T,y),S=0),t.headerInfo.numValidPixel===v*m)for(c=0,l=0;l>>32-A,32-_>>64-_-A),g[f])a=g[f][1],_+=g[f][0];else for(f=s=D<<_>>>32-P,32-_>>64-_-P),i=b,d=0;d>>P-d-1&1?i.right:i.left).left&&!i.right){a=i.val,_=_+d+1;break}_>=32&&(_-=32,D=k[++x]),o=a-I,E?(o+=u>0?S:l>0?O[c-v]:S,o&=255,O[c]=o,S=o):O[c]=o}else for(c=0,l=0;l>>32-A,32-_>>64-_-A),g[f])a=g[f][1],_+=g[f][0];else for(f=s=D<<_>>>32-P,32-_>>64-_-P),i=b,d=0;d>>P-d-1&1?i.right:i.left).left&&!i.right){a=i.val,_=_+d+1;break}_>=32&&(_-=32,D=k[++x]),o=a-I,E?(u>0&&U[c-1]?o+=S:l>0&&U[c-v]?o+=O[c-v]:o+=S,o&=255,O[c]=o,S=o):O[c]=o}}else for(c=0,l=0;l>>32-A,32-_>>64-_-A),g[f])a=g[f][1],_+=g[f][0];else for(f=s=D<<_>>>32-P,32-_>>64-_-P),i=b,d=0;d>>P-d-1&1?i.right:i.left).left&&!i.right){a=i.val,_=_+d+1;break}_>=32&&(_-=32,D=k[++x]),o=a-I,O[c]=o}t.ptr=t.ptr+4*(x+1)+(_>0?4:0),t.pixels.resultPixels=B,p>1&&!n&&(t.pixels.resultPixels=h.swapDimensionOrder(B,y,p,r))},decodeBits:function(e,t,r,n,i){var a=t.headerInfo,h=a.fileVersion,d=0,p=e.byteLength-t.ptr>=5?5:e.byteLength-t.ptr,m=new DataView(e,t.ptr,p),v=m.getUint8(0);d++;var y=v>>6,w=0===y?4:3-y,g=(32&v)>0,b=31&v,k=0;if(1===w)k=m.getUint8(d),d++;else if(2===w)k=m.getUint16(d,!0),d+=2;else{if(4!==w)throw"Invalid valid pixel count type";k=m.getUint32(d,!0),d+=4}var x,_,A,P,I,U,S,T,D,E=2*a.maxZError,B=a.numDims>1?a.maxValues[i]:a.zMax;if(g){for(t.counter.lut++,T=m.getUint8(d),d++,P=Math.ceil((T-1)*b/8),I=Math.ceil(P/4),_=new ArrayBuffer(4*I),A=new Uint8Array(_),t.ptr+=d,A.set(new Uint8Array(e,t.ptr,P)),S=new Uint32Array(_),t.ptr+=P,D=0;T-1>>>D;)D++;P=Math.ceil(k*D/8),I=Math.ceil(P/4),_=new ArrayBuffer(4*I),(A=new Uint8Array(_)).set(new Uint8Array(e,t.ptr,P)),x=new Uint32Array(_),t.ptr+=P,U=h>=3?l(S,b,T-1,n,E,B):s(S,b,T-1,n,E,B),h>=3?f(x,r,D,k,U):o(x,r,D,k,U)}else t.counter.bitstuffer++,D=b,t.ptr+=d,D>0&&(P=Math.ceil(k*D/8),I=Math.ceil(P/4),_=new ArrayBuffer(4*I),(A=new Uint8Array(_)).set(new Uint8Array(e,t.ptr,P)),x=new Uint32Array(_),t.ptr+=P,h>=3?null==n?c(x,r,D,k):f(x,r,D,k,!1,n,E,B):null==n?u(x,r,D,k):o(x,r,D,k,!1,n,E,B))},readTiles:function(e,t,r,n){var i=t.headerInfo,a=i.width,o=i.height,s=a*o,f=i.microBlockSize,l=i.imageType,u=h.getDataTypeSize(l),c=Math.ceil(a/f),d=Math.ceil(o/f);t.pixels.numBlocksY=d,t.pixels.numBlocksX=c,t.pixels.ptr=0;var p,m,v,y,w,g,b,k,x,_,A=0,P=0,I=0,U=0,S=0,T=0,D=0,E=0,B=0,O=0,M=0,C=0,L=0,R=0,V=0,G=new r(f*f),F=o%f||f,z=a%f||f,j=i.numDims,N=t.pixels.resultMask,Z=t.pixels.resultPixels,K=i.fileVersion>=5?14:15,H=i.zMax;for(I=0;I1?(_=Z,O=I*a*f+U*f,Z=new r(t.pixels.resultPixels.buffer,s*k*u,s),H=i.maxValues[k]):_=null,D=e.byteLength-t.ptr,m={},V=0,E=(p=new DataView(e,t.ptr,Math.min(10,D))).getUint8(0),V++,x=i.fileVersion>=5?4&E:0,B=E>>6&255,(E>>2&K)!=(U*f>>3&K))throw"integrity issue";if(x&&0===k)throw"integrity issue";if((w=3&E)>3)throw t.ptr+=V,"Invalid block encoding ("+w+")";if(2!==w)if(0===w){if(x)throw"integrity issue";if(t.counter.uncompressed++,t.ptr+=V,C=(C=S*T*u)<(L=e.byteLength-t.ptr)?C:L,v=new ArrayBuffer(C%u==0?C:C+u-C%u),new Uint8Array(v).set(new Uint8Array(e,t.ptr,C)),y=new r(v),R=0,N)for(A=0;A1&&!n&&(t.pixels.resultPixels=h.swapDimensionOrder(t.pixels.resultPixels,s,j,r))},formatFileInfo:function(e){return{fileIdentifierString:e.headerInfo.fileIdentifierString,fileVersion:e.headerInfo.fileVersion,imageType:e.headerInfo.imageType,height:e.headerInfo.height,width:e.headerInfo.width,numValidPixel:e.headerInfo.numValidPixel,microBlockSize:e.headerInfo.microBlockSize,blobSize:e.headerInfo.blobSize,maxZError:e.headerInfo.maxZError,pixelType:h.getPixelType(e.headerInfo.imageType),eofOffset:e.eofOffset,mask:e.mask?{numBytes:e.mask.numBytes}:null,pixels:{numBlocksX:e.pixels.numBlocksX,numBlocksY:e.pixels.numBlocksY,maxValue:e.headerInfo.zMax,minValue:e.headerInfo.zMin,noDataValue:e.noDataValue}}},constructConstantSurface:function(e,t){var r=e.headerInfo.zMax,n=e.headerInfo.zMin,i=e.headerInfo.maxValues,a=e.headerInfo.numDims,o=e.headerInfo.height*e.headerInfo.width,s=0,f=0,l=0,u=e.pixels.resultMask,c=e.pixels.resultPixels;if(u)if(a>1){if(t)for(s=0;s1&&n!==r)if(t)for(s=0;s=-128&&t<=127;break;case 1:r=t>=0&&t<=255;break;case 2:r=t>=-32768&&t<=32767;break;case 3:r=t>=0&&t<=65536;break;case 4:r=t>=-2147483648&&t<=2147483647;break;case 5:r=t>=0&&t<=4294967296;break;case 6:r=t>=-34027999387901484e22&&t<=34027999387901484e22;break;case 7:r=t>=-17976931348623157e292&&t<=17976931348623157e292;break;default:r=!1}return r},getDataTypeSize:function(e){var t=0;switch(e){case 0:case 1:t=1;break;case 2:case 3:t=2;break;case 4:case 5:case 6:t=4;break;case 7:t=8;break;default:t=e}return t},getDataTypeUsed:function(e,t){var r=e;switch(e){case 2:case 4:r=e-t;break;case 3:case 5:r=e-2*t;break;case 6:r=0===t?e:1===t?2:1;break;case 7:r=0===t?e:e-2*t+1;break;default:r=e}return r},getOnePixel:function(e,t,r,n){var i=0;switch(r){case 0:i=n.getInt8(t);break;case 1:i=n.getUint8(t);break;case 2:i=n.getInt16(t,!0);break;case 3:i=n.getUint16(t,!0);break;case 4:i=n.getInt32(t,!0);break;case 5:i=n.getUInt32(t,!0);break;case 6:i=n.getFloat32(t,!0);break;case 7:i=n.getFloat64(t,!0);break;default:throw"the decoder does not understand this pixel type"}return i},swapDimensionOrder:function(e,t,r,n,i){var a=0,o=0,s=0,f=0,l=e;if(r>1)if(l=new n(t*r),i)for(a=0;a5)throw"unsupported lerc version 2."+o;h.readMask(e,i),a.numValidPixel===a.width*a.height||i.pixels.resultMask||(i.pixels.resultMask=t.maskData);var f=a.width*a.height;i.pixels.resultPixels=new s(f*a.numDims),i.counter={onesweep:0,uncompressed:0,lut:0,bitstuffer:0,constant:0,constantoffset:0};var l,u=!t.returnPixelInterleavedDims;if(0!==a.numValidPixel)if(a.zMax===a.zMin)h.constructConstantSurface(i,u);else if(o>=4&&h.checkMinMaxRanges(e,i))h.constructConstantSurface(i,u);else{var c=new DataView(e,i.ptr,2),d=c.getUint8(0);if(i.ptr++,d)h.readDataOneSweep(e,i,s,u);else if(o>1&&a.imageType<=1&&Math.abs(a.maxZError-.5)<1e-5){var p=c.getUint8(1);if(i.ptr++,i.encodeMode=p,p>2||o<4&&p>1)throw"Invalid Huffman flag "+p;p?h.readHuffman(e,i,s,u):h.readTiles(e,i,s,u)}else h.readTiles(e,i,s,u)}i.eofOffset=i.ptr,t.inputOffset?(l=i.headerInfo.blobSize+t.inputOffset-i.ptr,Math.abs(l)>=1&&(i.eofOffset=t.inputOffset+i.headerInfo.blobSize)):(l=i.headerInfo.blobSize-i.ptr,Math.abs(l)>=1&&(i.eofOffset=i.headerInfo.blobSize));var m={width:a.width,height:a.height,pixelData:i.pixels.resultPixels,minValue:a.zMin,maxValue:a.zMax,validPixelCount:a.numValidPixel,dimCount:a.numDims,dimStats:{minValues:a.minValues,maxValues:a.maxValues},maskData:i.pixels.resultMask};if(i.pixels.resultMask&&h.isValidPixelValue(a.imageType,r)){var v=i.pixels.resultMask;for(n=0;n1&&(l&&m.push(l),k.fileInfo.mask&&k.fileInfo.mask.numBytes>0&&b++),d++,g.pixels.push(k.pixelData),g.statistics.push({minValue:k.minValue,maxValue:k.maxValue,noDataValue:k.noDataValue,dimStats:k.dimStats})}if(n>1&&b>1){for(h=g.width*g.height,g.bandMasks=m,(l=new Uint8Array(h)).set(m[0]),u=1;u0&&void 0!==arguments[0]||new mr},e.writeArrayBuffer=function(e,t){return pr(e,t)},Object.defineProperty(e,"__esModule",{value:!0})})); //# sourceMappingURL=geotiff.js.map