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o(e,t={}){if(!e||typeof e.next!=`function`)throw Error(`CCITTFaxDecoder - invalid "source" parameter.`);this.source=e,this.eof=!1,this.encoding=t.K||0,this.eoline=t.EndOfLine||!1,this.byteAlign=t.EncodedByteAlign||!1,this.columns=t.Columns||1728,this.rows=t.Rows||0;let n=t.EndOfBlock;n??=!0,this.eoblock=n,this.black=t.BlackIs1||!1,this.codingLine=new Uint32Array(this.columns+1),this.refLine=new Uint32Array(this.columns+2),this.codingLine[0]=this.columns,this.codingPos=0,this.row=0,this.nextLine2D=this.encoding<0,this.inputBits=0,this.inputBuf=0,this.outputBits=0,this.rowsDone=!1;let r;for(;(r=this._lookBits(12))===0;)this._eatBits(1);r===1&&this._eatBits(12),this.encoding>0&&(this.nextLine2D=!this._lookBits(1),this._eatBits(1))}return o.prototype={readNextChar(){if(this.eof)return-1;let e=this.refLine,t=this.codingLine,n=this.columns,r,i,a,o;if(this.outputBits===0){if(this.rowsDone&&(this.eof=!0),this.eof)return-1;this.err=!1;let a,s,c;if(this.nextLine2D){for(o=0;t[o]<n;++o)e[o]=t[o];for(e[o++]=n,e[o]=n,t[0]=0,this.codingPos=0,r=0,i=0;t[this.codingPos]<n;)switch(a=this._getTwoDimCode(),a){case 0:this._addPixels(e[r+1],i),e[r+1]<n&&(r+=2);break;case 1:if(a=s=0,i){do a+=c=this._getBlackCode();while(c>=64);do s+=c=this._getWhiteCode();while(c>=64)}else{do a+=c=this._getWhiteCode();while(c>=64);do s+=c=this._getBlackCode();while(c>=64)}for(this._addPixels(t[this.codingPos]+a,i),t[this.codingPos]<n&&this._addPixels(t[this.codingPos]+s,i^1);e[r]<=t[this.codingPos]&&e[r]<n;)r+=2;break;case 7:if(this._addPixels(e[r]+3,i),i^=1,t[this.codingPos]<n)for(++r;e[r]<=t[this.codingPos]&&e[r]<n;)r+=2;break;case 5:if(this._addPixels(e[r]+2,i),i^=1,t[this.codingPos]<n)for(++r;e[r]<=t[this.codingPos]&&e[r]<n;)r+=2;break;case 3:if(this._addPixels(e[r]+1,i),i^=1,t[this.codingPos]<n)for(++r;e[r]<=t[this.codingPos]&&e[r]<n;)r+=2;break;case 2:if(this._addPixels(e[r],i),i^=1,t[this.codingPos]<n)for(++r;e[r]<=t[this.codingPos]&&e[r]<n;)r+=2;break;case 8:if(this._addPixelsNeg(e[r]-3,i),i^=1,t[this.codingPos]<n)for(r>0?--r:++r;e[r]<=t[this.codingPos]&&e[r]<n;)r+=2;break;case 6:if(this._addPixelsNeg(e[r]-2,i),i^=1,t[this.codingPos]<n)for(r>0?--r:++r;e[r]<=t[this.codingPos]&&e[r]<n;)r+=2;break;case 4:if(this._addPixelsNeg(e[r]-1,i),i^=1,t[this.codingPos]<n)for(r>0?--r:++r;e[r]<=t[this.codingPos]&&e[r]<n;)r+=2;break;case-1:this._addPixels(n,0),this.eof=!0;break;default:J(`bad 2d code`),this._addPixels(n,0),this.err=!0}}else for(t[0]=0,this.codingPos=0,i=0;t[this.codingPos]<n;){if(a=0,i)do a+=c=this._getBlackCode();while(c>=64);else do a+=c=this._getWhiteCode();while(c>=64);this._addPixels(t[this.codingPos]+a,i),i^=1}let l=!1;if(this.byteAlign&&(this.inputBits&=-8),!this.eoblock&&this.row===this.rows-1)this.rowsDone=!0;else{if(a=this._lookBits(12),this.eoline)for(;a!==-1&&a!==1;)this._eatBits(1),a=this._lookBits(12);else for(;a===0;)this._eatBits(1),a=this._lookBits(12);a===1?(this._eatBits(12),l=!0):a===-1&&(this.eof=!0)}if(!this.eof&&this.encoding>0&&!this.rowsDone&&(this.nextLine2D=!this._lookBits(1),this._eatBits(1)),this.eoblock&&l&&this.byteAlign){if(a=this._lookBits(12),a===1){if(this._eatBits(12),this.encoding>0&&(this._lookBits(1),this._eatBits(1)),this.encoding>=0)for(o=0;o<4;++o)a=this._lookBits(12),a!==1&&J(`bad rtc code: `+a),this._eatBits(12),this.encoding>0&&(this._lookBits(1),this._eatBits(1));this.eof=!0}}else if(this.err&&this.eoline){for(;;){if(a=this._lookBits(13),a===-1)return this.eof=!0,-1;if(a>>1==1)break;this._eatBits(1)}this._eatBits(12),this.encoding>0&&(this._eatBits(1),this.nextLine2D=!(a&1))}t[0]>0?this.outputBits=t[this.codingPos=0]:this.outputBits=t[this.codingPos=1],this.row++}let s;if(this.outputBits>=8)s=this.codingPos&1?0:255,this.outputBits-=8,this.outputBits===0&&t[this.codingPos]<n&&(this.codingPos++,this.outputBits=t[this.codingPos]-t[this.codingPos-1]);else{a=8,s=0;do this.outputBits>a?(s<<=a,this.codingPos&1||(s|=255>>8-a),this.outputBits-=a,a=0):(s<<=this.outputBits,this.codingPos&1||(s|=255>>8-this.outputBits),a-=this.outputBits,this.outputBits=0,t[this.codingPos]<n?(this.codingPos++,this.outputBits=t[this.codingPos]-t[this.codingPos-1]):a>0&&(s<<=a,a=0));while(a)}return this.black&&(s^=255),s},_addPixels(e,t){let n=this.codingLine,r=this.codingPos;e>n[r]&&(e>this.columns&&(J(`row is wrong length`),this.err=!0,e=this.columns),r&1^t&&++r,n[r]=e),this.codingPos=r},_addPixelsNeg(e,t){let n=this.codingLine,r=this.codingPos;if(e>n[r])e>this.columns&&(J(`row is wrong length`),this.err=!0,e=this.columns),r&1^t&&++r,n[r]=e;else if(e<n[r]){for(e<0&&(J(`invalid code`),this.err=!0,e=0);r>0&&e<n[r-1];)--r;n[r]=e}this.codingPos=r},_findTableCode(e,t,n,r){let i=r||0;for(let r=e;r<=t;++r){let e=this._lookBits(r);if(e===-1)return[!0,1,!1];if(r<t&&(e<<=t-r),!i||e>=i){let t=n[e-i];if(t[0]===r)return this._eatBits(r),[!0,t[1],!0]}}return[!1,0,!1]},_getTwoDimCode(){let t=0,n;if(this.eoblock){if(t=this._lookBits(7),n=e[t],n&&n[0]>0)return this._eatBits(n[0]),n[1]}else{let t=this._findTableCode(1,7,e);if(t[0]&&t[2])return t[1]}return J(`Bad two dim code`),-1},_getWhiteCode(){let e=0,r;if(this.eoblock){if(e=this._lookBits(12),e===-1)return 1;if(r=e>>5?n[e>>3]:t[e],r[0]>0)return this._eatBits(r[0]),r[1]}else{let e=this._findTableCode(1,9,n);if(e[0]||(e=this._findTableCode(11,12,t),e[0]))return e[1]}return J(`bad white code`),this._eatBits(1),1},_getBlackCode(){let e,t;if(this.eoblock){if(e=this._lookBits(13),e===-1)return 1;if(t=e>>7?!(e>>9)&&e>>7?i[(e>>1)-64]:a[e>>7]:r[e],t[0]>0)return this._eatBits(t[0]),t[1]}else{let e=this._findTableCode(2,6,a);if(e[0]||(e=this._findTableCode(7,12,i,64),e[0])||(e=this._findTableCode(10,13,r),e[0]))return e[1]}return J(`bad black code`),this._eatBits(1),1},_lookBits(e){let t;for(;this.inputBits<e;){if((t=this.source.next())===-1)return this.inputBits===0?-1:this.inputBuf<<e-this.inputBits&65535>>16-e;this.inputBuf=this.inputBuf<<8|t,this.inputBits+=8}return this.inputBuf>>this.inputBits-e&65535>>16-e},_eatBits(e){(this.inputBits-=e)<0&&(this.inputBits=0)}},o})(),Q=class extends ae{constructor(e){super(`JBIG2 error: ${e}`)}},ue=(function(){function e(){}e.prototype={getContexts(e){return e in this?this[e]:this[e]=new Int8Array(65536)}};function t(e,t,n){this.data=e,this.start=t,this.end=n}t.prototype={get decoder(){var e=new ce(this.data,this.start,this.end);return ie(this,`decoder`,e)},get contextCache(){var t=new e;return ie(this,`contextCache`,t)}};function n(e,t,n){var r=e.getContexts(t),i=1;function a(e){for(var t=0,a=0;a<e;a++){var o=n.readBit(r,i);i=i<256?i<<1|o:(i<<1|o)&511|256,t=t<<1|o}return t>>>0}var o=a(1),s=a(1)?a(1)?a(1)?a(1)?a(1)?a(32)+4436:a(12)+340:a(8)+84:a(6)+20:a(4)+4:a(2);return o===0?s:s>0?-s:null}function r(e,t,n){for(var r=e.getContexts(`IAID`),i=1,a=0;a<n;a++){var o=t.readBit(r,i);i=i<<1|o}return n<31?i&(1<<n)-1:i&2147483647}var i=[`SymbolDictionary`,null,null,null,`IntermediateTextRegion`,null,`ImmediateTextRegion`,`ImmediateLosslessTextRegion`,null,null,null,null,null,null,null,null,`PatternDictionary`,null,null,null,`IntermediateHalftoneRegion`,null,`ImmediateHalftoneRegion`,`ImmediateLosslessHalftoneRegion`,null,null,null,null,null,null,null,null,null,null,null,null,`IntermediateGenericRegion`,null,`ImmediateGenericRegion`,`ImmediateLosslessGenericRegion`,`IntermediateGenericRefinementRegion`,null,`ImmediateGenericRefinementRegion`,`ImmediateLosslessGenericRefinementRegion`,null,null,null,null,`PageInformation`,`EndOfPage`,`EndOfStripe`,`EndOfFile`,`Profiles`,`Tables`,null,null,null,null,null,null,null,null,`Extension`],a=[[{x:-1,y:-2},{x:0,y:-2},{x:1,y:-2},{x:-2,y:-1},{x:-1,y:-1},{x:0,y:-1},{x:1,y:-1},{x:2,y:-1},{x:-4,y:0},{x:-3,y:0},{x:-2,y:0},{x:-1,y:0}],[{x:-1,y:-2},{x:0,y:-2},{x:1,y:-2},{x:2,y:-2},{x:-2,y:-1},{x:-1,y:-1},{x:0,y:-1},{x:1,y:-1},{x:2,y:-1},{x:-3,y:0},{x:-2,y:0},{x:-1,y:0}],[{x:-1,y:-2},{x:0,y:-2},{x:1,y:-2},{x:-2,y:-1},{x:-1,y:-1},{x:0,y:-1},{x:1,y:-1},{x:-2,y:0},{x:-1,y:0}],[{x:-3,y:-1},{x:-2,y:-1},{x:-1,y:-1},{x:0,y:-1},{x:1,y:-1},{x:-4,y:0},{x:-3,y:0},{x:-2,y:0},{x:-1,y:0}]],o=[{coding:[{x:0,y:-1},{x:1,y:-1},{x:-1,y:0}],reference:[{x:0,y:-1},{x:1,y:-1},{x:-1,y:0},{x:0,y:0},{x:1,y:0},{x:-1,y:1},{x:0,y:1},{x:1,y:1}]},{coding:[{x:-1,y:-1},{x:0,y:-1},{x:1,y:-1},{x:-1,y:0}],reference:[{x:0,y:-1},{x:-1,y:0},{x:0,y:0},{x:1,y:0},{x:0,y:1},{x:1,y:1}]}],s=[39717,1941,229,405],c=[32,8];function l(e,t,n){var r=n.decoder,i=n.contextCache.getContexts(`GB`),a,o,s,c,l,u,d,f=[],p=31735;for(o=0;o<t;o++)for(l=f[o]=new Uint8Array(e),u=o<1?l:f[o-1],d=o<2?l:f[o-2],a=d[0]<<13|d[1]<<12|d[2]<<11|u[0]<<7|u[1]<<6|u[2]<<5|u[3]<<4,s=0;s<e;s++)l[s]=c=r.readBit(i,a),a=(a&p)<<1|(s+3<e?d[s+3]<<11:0)|(s+4<e?u[s+4]<<4:0)|c;return f}function u(e,t,n,r,i,o,c,u){if(e)return I(new j(u.data,u.start,u.end),t,n,!1);if(r===0&&!o&&!i&&c.length===4&&c[0].x===3&&c[0].y===-1&&c[1].x===-3&&c[1].y===-1&&c[2].x===2&&c[2].y===-2&&c[3].x===-2&&c[3].y===-2)return l(t,n,u);var d=!!o,f=a[r].concat(c);f.sort(function(e,t){return e.y-t.y||e.x-t.x});var p=f.length,m=new Int8Array(p),h=new Int8Array(p),g=[],_=0,v=0,y=0,b=0,x,S;for(S=0;S<p;S++)m[S]=f[S].x,h[S]=f[S].y,v=Math.min(v,f[S].x),y=Math.max(y,f[S].x),b=Math.min(b,f[S].y),S<p-1&&f[S].y===f[S+1].y&&f[S].x===f[S+1].x-1?_|=1<<p-1-S:g.push(S);var C=g.length,w=new Int8Array(C),T=new Int8Array(C),E=new Uint16Array(C);for(x=0;x<C;x++)S=g[x],w[x]=f[S].x,T[x]=f[S].y,E[x]=1<<p-1-S;for(var D=-v,O=-b,k=t-y,A=s[r],M=new Uint8Array(t),N=[],P=u.decoder,F=u.contextCache.getContexts(`GB`),L=0,R,z,B,V=0,H,U,W=0;W<n;W++){if(i){var G=P.readBit(F,A);if(L^=G,L){N.push(M);continue}}for(M=new Uint8Array(M),N.push(M),R=0;R<t;R++){if(d&&o[W][R]){M[R]=0;continue}if(R>=D&&R<k&&W>=O)for(V=V<<1&_,S=0;S<C;S++)z=W+T[S],B=R+w[S],H=N[z][B],H&&(H=E[S],V|=H);else for(V=0,U=p-1,S=0;S<p;S++,U--)B=R+m[S],B>=0&&B<t&&(z=W+h[S],z>=0&&(H=N[z][B],H&&(V|=H<<U)));var K=P.readBit(F,V);M[R]=K}}return N}function d(e,t,n,r,i,a,s,l,u){var d=o[n].coding;n===0&&(d=d.concat([l[0]]));var f=d.length,p=new Int32Array(f),m=new Int32Array(f),h;for(h=0;h<f;h++)p[h]=d[h].x,m[h]=d[h].y;var g=o[n].reference;n===0&&(g=g.concat([l[1]]));var _=g.length,v=new Int32Array(_),y=new Int32Array(_);for(h=0;h<_;h++)v[h]=g[h].x,y[h]=g[h].y;for(var b=r[0].length,x=r.length,S=c[n],C=[],w=u.decoder,T=u.contextCache.getContexts(`GR`),E=0,D=0;D<t;D++){if(s){var O=w.readBit(T,S);if(E^=O,E)throw new Q(`prediction is not supported`)}var k=new Uint8Array(e);C.push(k);for(var A=0;A<e;A++){var j,M,N=0;for(h=0;h<f;h++)j=D+m[h],M=A+p[h],j<0||M<0||M>=e?N<<=1:N=N<<1|C[j][M];for(h=0;h<_;h++)j=D+y[h]-a,M=A+v[h]-i,j<0||j>=x||M<0||M>=b?N<<=1:N=N<<1|r[j][M];k[A]=w.readBit(T,N)}}return C}function f(e,t,i,a,o,s,c,l,f,m,h,g){if(e&&t)throw new Q(`symbol refinement with Huffman is not supported`);var _=[],v=0,y=oe(i.length+a),b=h.decoder,x=h.contextCache;let S,C;for(e&&(S=A(1),C=[],y=Math.max(y,1));_.length<a;){var w=e?s.tableDeltaHeight.decode(g):n(x,`IADH`,b);v+=w;let a=0,o=0,S=e?C.length:0;for(;;){var T=e?s.tableDeltaWidth.decode(g):n(x,`IADW`,b);if(T===null)break;a+=T,o+=a;var E;if(t){var D=n(x,`IAAI`,b);if(D>1)E=p(e,t,a,v,0,D,1,i.concat(_),y,0,0,1,0,s,f,m,h,0,g);else{var O=r(x,b,y),k=n(x,`IARDX`,b),j=n(x,`IARDY`,b),M=O<i.length?i[O]:_[O-i.length];E=d(a,v,f,M,k,j,!1,m,h)}_.push(E)}else e?C.push(a):(E=u(!1,a,v,c,!1,null,l,h),_.push(E))}if(e&&!t){let e=s.tableBitmapSize.decode(g);g.byteAlign();let t;if(e===0)t=F(g,o,v);else{let n=g.end,r=g.position+e;g.end=r,t=I(g,o,v,!1),g.end=n,g.position=r}let n=C.length;if(S===n-1)_.push(t);else{let e,r,i=0,a,o,s;for(e=S;e<n;e++){for(o=C[e],a=i+o,s=[],r=0;r<v;r++)s.push(t[r].subarray(i,a));_.push(s),i=a}}}}for(var N=[],P=[],L=!1,R=i.length+a;P.length<R;){for(var z=e?S.decode(g):n(x,`IAEX`,b);z--;)P.push(L);L=!L}for(var B=0,V=i.length;B<V;B++)P[B]&&N.push(i[B]);for(var H=0;H<a;B++,H++)P[B]&&N.push(_[H]);return N}function p(e,t,i,a,o,s,c,l,u,f,p,m,h,g,_,v,y,b,x){if(e&&t)throw new Q(`refinement with Huffman is not supported`);var S=[],C,w;for(C=0;C<a;C++){if(w=new Uint8Array(i),o)for(var T=0;T<i;T++)w[T]=o;S.push(w)}var E=y.decoder,D=y.contextCache,O=e?-g.tableDeltaT.decode(x):-n(D,`IADT`,E),k=0;for(C=0;C<s;){var A=e?g.tableDeltaT.decode(x):n(D,`IADT`,E);O+=A;var j=e?g.tableFirstS.decode(x):n(D,`IAFS`,E);k+=j;var M=k;do{let a=0;c>1&&(a=e?x.readBits(b):n(D,`IAIT`,E));var N=c*O+a,P=e?g.symbolIDTable.decode(x):r(D,E,u),F=t&&(e?x.readBit():n(D,`IARI`,E)),I=l[P],L=I[0].length,R=I.length;if(F){var z=n(D,`IARDW`,E),B=n(D,`IARDH`,E),V=n(D,`IARDX`,E),H=n(D,`IARDY`,E);L+=z,R+=B,I=d(L,R,_,I,(z>>1)+V,(B>>1)+H,!1,v,y)}var U=N-(m&1?0:R-1),W=M-(m&2?L-1:0),G,K,q;if(f){for(G=0;G<R;G++)if(w=S[W+G],w){q=I[G];var ee=Math.min(i-U,L);switch(h){case 0:for(K=0;K<ee;K++)w[U+K]|=q[K];break;case 2:for(K=0;K<ee;K++)w[U+K]^=q[K];break;default:throw new Q(`operator ${h} is not supported`)}}M+=R-1}else{for(K=0;K<R;K++)if(w=S[U+K],w)switch(q=I[K],h){case 0:for(G=0;G<L;G++)w[W+G]|=q[G];break;case 2:for(G=0;G<L;G++)w[W+G]^=q[G];break;default:throw new Q(`operator ${h} is not supported`)}M+=L-1}C++;var te=e?g.tableDeltaS.decode(x):n(D,`IADS`,E);if(te===null)break;M+=te+p}while(!0)}return S}function m(e,t,n,r,i,a){let o=[];e||(o.push({x:-t,y:0}),i===0&&(o.push({x:-3,y:-1}),o.push({x:2,y:-2}),o.push({x:-2,y:-2})));let s=u(e,(r+1)*t,n,i,!1,null,o,a),c=[];for(let e=0;e<=r;e++){let r=[],i=t*e,a=i+t;for(let e=0;e<n;e++)r.push(s[e].subarray(i,a));c.push(r)}return c}function h(e,t,n,r,i,a,o,s,c,l,d,f,p,m,h){if(o)throw new Q(`skip is not supported`);if(s!==0)throw new Q(`operator `+s+` is not supported in halftone region`);let g=[],_,v,y;for(_=0;_<i;_++){if(y=new Uint8Array(r),a)for(v=0;v<r;v++)y[v]=a;g.push(y)}let b=t.length,x=t[0],S=x[0].length,C=x.length,w=oe(b),T=[];e||(T.push({x:n<=1?3:2,y:-1}),n===0&&(T.push({x:-3,y:-1}),T.push({x:2,y:-2}),T.push({x:-2,y:-2})));let E=[],D,O;for(e&&(D=new j(h.data,h.start,h.end)),_=w-1;_>=0;_--)O=e?I(D,c,l,!0):u(!1,c,l,n,!1,null,T,h),E[_]=O;let k,A,M,N,P,F,L,R,z;for(k=0;k<l;k++)for(A=0;A<c;A++){for(M=0,N=0,v=w-1;v>=0;v--)M=E[v][k][A]^M,N|=M<<v;if(P=t[N],F=d+k*m+A*p>>8,L=f+k*p-A*m>>8,F>=0&&F+S<=r&&L>=0&&L+C<=i)for(_=0;_<C;_++)for(z=g[L+_],R=P[_],v=0;v<S;v++)z[F+v]|=R[v];else{let e,t;for(_=0;_<C;_++)if(t=L+_,!(t<0||t>=i))for(z=g[t],R=P[_],v=0;v<S;v++)e=F+v,e>=0&&e<r&&(z[e]|=R[v])}}return g}function g(e,t){var n={};n.number=Z(e,t);var r=e[t+4],a=r&63;if(!i[a])throw new Q(`invalid segment type: `+a);n.type=a,n.typeName=i[a],n.deferredNonRetain=!!(r&128);var o=!!(r&64),s=e[t+5],c=s>>5&7,l=[s&31],u=t+6;if(s===7){c=Z(e,u-1)&536870911,u+=3;var d=c+7>>3;for(l[0]=e[u++];--d>0;)l.push(e[u++])}else if(s===5||s===6)throw new Q(`invalid referred-to flags`);n.retainBits=l;let f=4;n.number<=256?f=1:n.number<=65536&&(f=2);var p=[],m,h;for(m=0;m<c;m++){let t;t=f===1?e[u]:f===2?X(e,u):Z(e,u),p.push(t),u+=f}if(n.referredTo=p,o?(n.pageAssociation=Z(e,u),u+=4):n.pageAssociation=e[u++],n.length=Z(e,u),u+=4,n.length===4294967295)if(a===38){var g=v(e,u),_=!!(e[u+y]&1),b=6,x=new Uint8Array(b);for(_||(x[0]=255,x[1]=172),x[2]=g.height>>>24&255,x[3]=g.height>>16&255,x[4]=g.height>>8&255,x[5]=g.height&255,m=u,h=e.length;m<h;m++){for(var S=0;S<b&&x[S]===e[m+S];)S++;if(S===b){n.length=m+b;break}}if(n.length===4294967295)throw new Q(`segment end was not found`)}else throw new Q(`invalid unknown segment length`);return n.headerEnd=u,n}function _(e,t,n,r){for(var i=[],a=n;a<r;){var o=g(t,a);a=o.headerEnd;var s={header:o,data:t};if(e.randomAccess||(s.start=a,a+=o.length,s.end=a),i.push(s),o.type===51)break}if(e.randomAccess)for(var c=0,l=i.length;c<l;c++)i[c].start=a,a+=i[c].header.length,i[c].end=a;return i}function v(e,t){return{width:Z(e,t),height:Z(e,t+4),x:Z(e,t+8),y:Z(e,t+12),combinationOperator:e[t+16]&7}}var y=17;function b(e,t){var n=e.header,r=e.data,i=e.start,a=e.end,o,s,c,l;switch(n.type){case 0:var u={},d=X(r,i);if(u.huffman=!!(d&1),u.refinement=!!(d&2),u.huffmanDHSelector=d>>2&3,u.huffmanDWSelector=d>>4&3,u.bitmapSizeSelector=d>>6&1,u.aggregationInstancesSelector=d>>7&1,u.bitmapCodingContextUsed=!!(d&256),u.bitmapCodingContextRetained=!!(d&512),u.template=d>>10&3,u.refinementTemplate=d>>12&1,i+=2,!u.huffman){for(l=u.template===0?4:1,s=[],c=0;c<l;c++)s.push({x:Y(r,i),y:Y(r,i+1)}),i+=2;u.at=s}if(u.refinement&&!u.refinementTemplate){for(s=[],c=0;c<2;c++)s.push({x:Y(r,i),y:Y(r,i+1)}),i+=2;u.refinementAt=s}u.numberOfExportedSymbols=Z(r,i),i+=4,u.numberOfNewSymbols=Z(r,i),i+=4,o=[u,n.number,n.referredTo,r,i,a];break;case 6:case 7:var f={};f.info=v(r,i),i+=y;var p=X(r,i);if(i+=2,f.huffman=!!(p&1),f.refinement=!!(p&2),f.logStripSize=p>>2&3,f.stripSize=1<<f.logStripSize,f.referenceCorner=p>>4&3,f.transposed=!!(p&64),f.combinationOperator=p>>7&3,f.defaultPixelValue=p>>9&1,f.dsOffset=p<<17>>27,f.refinementTemplate=p>>15&1,f.huffman){var m=X(r,i);i+=2,f.huffmanFS=m&3,f.huffmanDS=m>>2&3,f.huffmanDT=m>>4&3,f.huffmanRefinementDW=m>>6&3,f.huffmanRefinementDH=m>>8&3,f.huffmanRefinementDX=m>>10&3,f.huffmanRefinementDY=m>>12&3,f.huffmanRefinementSizeSelector=!!(m&16384)}if(f.refinement&&!f.refinementTemplate){for(s=[],c=0;c<2;c++)s.push({x:Y(r,i),y:Y(r,i+1)}),i+=2;f.refinementAt=s}f.numberOfSymbolInstances=Z(r,i),i+=4,o=[f,n.referredTo,r,i,a];break;case 16:let e={},t=r[i++];e.mmr=!!(t&1),e.template=t>>1&3,e.patternWidth=r[i++],e.patternHeight=r[i++],e.maxPatternIndex=Z(r,i),i+=4,o=[e,n.number,r,i,a];break;case 22:case 23:let x={};x.info=v(r,i),i+=y;let S=r[i++];x.mmr=!!(S&1),x.template=S>>1&3,x.enableSkip=!!(S&8),x.combinationOperator=S>>4&7,x.defaultPixelValue=S>>7&1,x.gridWidth=Z(r,i),i+=4,x.gridHeight=Z(r,i),i+=4,x.gridOffsetX=Z(r,i)&4294967295,i+=4,x.gridOffsetY=Z(r,i)&4294967295,i+=4,x.gridVectorX=X(r,i),i+=2,x.gridVectorY=X(r,i),i+=2,o=[x,n.referredTo,r,i,a];break;case 38:case 39:var h={};h.info=v(r,i),i+=y;var g=r[i++];if(h.mmr=!!(g&1),h.template=g>>1&3,h.prediction=!!(g&8),!h.mmr){for(l=h.template===0?4:1,s=[],c=0;c<l;c++)s.push({x:Y(r,i),y:Y(r,i+1)}),i+=2;h.at=s}o=[h,r,i,a];break;case 48:var _={width:Z(r,i),height:Z(r,i+4),resolutionX:Z(r,i+8),resolutionY:Z(r,i+12)};_.height===4294967295&&delete _.height;var b=r[i+16];X(r,i+17),_.lossless=!!(b&1),_.refinement=!!(b&2),_.defaultPixelValue=b>>2&1,_.combinationOperator=b>>3&3,_.requiresBuffer=!!(b&32),_.combinationOperatorOverride=!!(b&64),o=[_];break;case 49:break;case 50:break;case 51:break;case 53:o=[n.number,r,i,a];break;case 62:break;default:throw new Q(`segment type ${n.typeName}(${n.type}) is not implemented`)}var x=`on`+n.typeName;x in t&&t[x].apply(t,o)}function x(e,t){for(var n=0,r=e.length;n<r;n++)b(e[n],t)}function S(e){for(var t=new w,n=0,r=e.length;n<r;n++){var i=e[n];x(_({},i.data,i.start,i.end),t)}return t.buffer}function C(e){let t=e.length,n=0;if(e[n]!==151||e[n+1]!==74||e[n+2]!==66||e[n+3]!==50||e[n+4]!==13||e[n+5]!==10||e[n+6]!==26||e[n+7]!==10)throw new Q(`parseJbig2 - invalid header.`);let r=Object.create(null);n+=8;let i=e[n++];r.randomAccess=!(i&1),i&2||(r.numberOfPages=Z(e,n),n+=4);let a=_(r,e,n,t),o=new w;x(a,o);let{width:s,height:c}=o.currentPageInfo,l=o.buffer,u=new Uint8ClampedArray(s*c),d=0,f=0;for(let e=0;e<c;e++){let e=0,t;for(let n=0;n<s;n++)e||(e=128,t=l[f++]),u[d++]=t&e?0:255,e>>=1}return{imgData:u,width:s,height:c}}function w(){}w.prototype={onPageInformation:function(e){this.currentPageInfo=e;var t=e.width+7>>3,n=new Uint8ClampedArray(t*e.height);if(e.defaultPixelValue)for(var r=0,i=n.length;r<i;r++)n[r]=255;this.buffer=n},drawBitmap:function(e,t){var n=this.currentPageInfo,r=e.width,i=e.height,a=n.width+7>>3,o=n.combinationOperatorOverride?e.combinationOperator:n.combinationOperator,s=this.buffer,c=128>>(e.x&7),l=e.y*a+(e.x>>3),u,d,f,p;switch(o){case 0:for(u=0;u<i;u++){for(f=c,p=l,d=0;d<r;d++)t[u][d]&&(s[p]|=f),f>>=1,f||(f=128,p++);l+=a}break;case 2:for(u=0;u<i;u++){for(f=c,p=l,d=0;d<r;d++)t[u][d]&&(s[p]^=f),f>>=1,f||(f=128,p++);l+=a}break;default:throw new Q(`operator ${o} is not supported`)}},onImmediateGenericRegion:function(e,n,r,i){var a=e.info,o=new t(n,r,i),s=u(e.mmr,a.width,a.height,e.template,e.prediction,null,e.at,o);this.drawBitmap(a,s)},onImmediateLosslessGenericRegion:function(){this.onImmediateGenericRegion.apply(this,arguments)},onSymbolDictionary:function(e,n,r,i,a,o){let s,c;e.huffman&&(s=P(e,r,this.customTables),c=new j(i,a,o));var l=this.symbols;l||(this.symbols=l={});for(var u=[],d=0,p=r.length;d<p;d++){let e=l[r[d]];e&&(u=u.concat(e))}var m=new t(i,a,o);l[n]=f(e.huffman,e.refinement,u,e.numberOfNewSymbols,e.numberOfExportedSymbols,s,e.template,e.at,e.refinementTemplate,e.refinementAt,m,c)},onImmediateTextRegion:function(e,n,r,i,a){var o=e.info;let s,c;for(var l=this.symbols,u=[],d=0,f=n.length;d<f;d++){let e=l[n[d]];e&&(u=u.concat(e))}var m=oe(u.length);e.huffman&&(c=new j(r,i,a),s=N(e,n,this.customTables,u.length,c));var h=new t(r,i,a),g=p(e.huffman,e.refinement,o.width,o.height,e.defaultPixelValue,e.numberOfSymbolInstances,e.stripSize,u,m,e.transposed,e.dsOffset,e.referenceCorner,e.combinationOperator,s,e.refinementTemplate,e.refinementAt,h,e.logStripSize,c);this.drawBitmap(o,g)},onImmediateLosslessTextRegion:function(){this.onImmediateTextRegion.apply(this,arguments)},onPatternDictionary(e,n,r,i,a){let o=this.patterns;o||(this.patterns=o={});let s=new t(r,i,a);o[n]=m(e.mmr,e.patternWidth,e.patternHeight,e.maxPatternIndex,e.template,s)},onImmediateHalftoneRegion(e,n,r,i,a){let o=this.patterns[n[0]],s=e.info,c=new t(r,i,a),l=h(e.mmr,o,e.template,s.width,s.height,e.defaultPixelValue,e.enableSkip,e.combinationOperator,e.gridWidth,e.gridHeight,e.gridOffsetX,e.gridOffsetY,e.gridVectorX,e.gridVectorY,c);this.drawBitmap(s,l)},onImmediateLosslessHalftoneRegion(){this.onImmediateHalftoneRegion.apply(this,arguments)},onTables(e,t,n,r){let i=this.customTables;i||(this.customTables=i={}),i[e]=O(t,n,r)}};function T(e){e.length===2?(this.isOOB=!0,this.rangeLow=0,this.prefixLength=e[0],this.rangeLength=0,this.prefixCode=e[1],this.isLowerRange=!1):(this.isOOB=!1,this.rangeLow=e[0],this.prefixLength=e[1],this.rangeLength=e[2],this.prefixCode=e[3],this.isLowerRange=e[4]===`lower`)}function E(e){this.children=[],e?(this.isLeaf=!0,this.rangeLength=e.rangeLength,this.rangeLow=e.rangeLow,this.isLowerRange=e.isLowerRange,this.isOOB=e.isOOB):this.isLeaf=!1}E.prototype={buildTree(e,t){let n=e.prefixCode>>t&1;if(t<=0)this.children[n]=new E(e);else{let r=this.children[n];r||(this.children[n]=r=new E(null)),r.buildTree(e,t-1)}},decodeNode(e){if(this.isLeaf){if(this.isOOB)return null;let t=e.readBits(this.rangeLength);return this.rangeLow+(this.isLowerRange?-t:t)}let t=this.children[e.readBit()];if(!t)throw new Q(`invalid Huffman data`);return t.decodeNode(e)}};function D(e,t){t||this.assignPrefixCodes(e),this.rootNode=new E(null);for(let t=0,n=e.length;t<n;t++){let n=e[t];n.prefixLength>0&&this.rootNode.buildTree(n,n.prefixLength-1)}}D.prototype={decode(e){return this.rootNode.decodeNode(e)},assignPrefixCodes(e){let t=e.length,n=0;for(let r=0;r<t;r++)n=Math.max(n,e[r].prefixLength);let r=new Uint32Array(n+1);for(let n=0;n<t;n++)r[e[n].prefixLength]++;let i=1,a=0,o,s,c;for(r[0]=0;i<=n;){for(a=a+r[i-1]<<1,o=a,s=0;s<t;)c=e[s],c.prefixLength===i&&(c.prefixCode=o,o++),s++;i++}}};function O(e,t,n){let r=e[t],i=Z(e,t+1)&4294967295,a=Z(e,t+5)&4294967295,o=new j(e,t+9,n),s=(r>>1&7)+1,c=(r>>4&7)+1,l=[],u,d,f=i;do u=o.readBits(s),d=o.readBits(c),l.push(new T([f,u,d,0])),f+=1<<d;while(f<a);return u=o.readBits(s),l.push(new T([i-1,u,32,0,`lower`])),u=o.readBits(s),l.push(new T([a,u,32,0])),r&1&&(u=o.readBits(s),l.push(new T([u,0]))),new D(l,!1)}let k={};function A(e){let t=k[e];if(t)return t;let n;switch(e){case 1:n=[[0,1,4,0],[16,2,8,2],[272,3,16,6],[65808,3,32,7]];break;case 2:n=[[0,1,0,0],[1,2,0,2],[2,3,0,6],[3,4,3,14],[11,5,6,30],[75,6,32,62],[6,63]];break;case 3:n=[[-256,8,8,254],[0,1,0,0],[1,2,0,2],[2,3,0,6],[3,4,3,14],[11,5,6,30],[-257,8,32,255,`lower`],[75,7,32,126],[6,62]];break;case 4:n=[[1,1,0,0],[2,2,0,2],[3,3,0,6],[4,4,3,14],[12,5,6,30],[76,5,32,31]];break;case 5:n=[[-255,7,8,126],[1,1,0,0],[2,2,0,2],[3,3,0,6],[4,4,3,14],[12,5,6,30],[-256,7,32,127,`lower`],[76,6,32,62]];break;case 6:n=[[-2048,5,10,28],[-1024,4,9,8],[-512,4,8,9],[-256,4,7,10],[-128,5,6,29],[-64,5,5,30],[-32,4,5,11],[0,2,7,0],[128,3,7,2],[256,3,8,3],[512,4,9,12],[1024,4,10,13],[-2049,6,32,62,`lower`],[2048,6,32,63]];break;case 7:n=[[-1024,4,9,8],[-512,3,8,0],[-256,4,7,9],[-128,5,6,26],[-64,5,5,27],[-32,4,5,10],[0,4,5,11],[32,5,5,28],[64,5,6,29],[128,4,7,12],[256,3,8,1],[512,3,9,2],[1024,3,10,3],[-1025,5,32,30,`lower`],[2048,5,32,31]];break;case 8:n=[[-15,8,3,252],[-7,9,1,508],[-5,8,1,253],[-3,9,0,509],[-2,7,0,124],[-1,4,0,10],[0,2,1,0],[2,5,0,26],[3,6,0,58],[4,3,4,4],[20,6,1,59],[22,4,4,11],[38,4,5,12],[70,5,6,27],[134,5,7,28],[262,6,7,60],[390,7,8,125],[646,6,10,61],[-16,9,32,510,`lower`],[1670,9,32,511],[2,1]];break;case 9:n=[[-31,8,4,252],[-15,9,2,508],[-11,8,2,253],[-7,9,1,509],[-5,7,1,124],[-3,4,1,10],[-1,3,1,2],[1,3,1,3],[3,5,1,26],[5,6,1,58],[7,3,5,4],[39,6,2,59],[43,4,5,11],[75,4,6,12],[139,5,7,27],[267,5,8,28],[523,6,8,60],[779,7,9,125],[1291,6,11,61],[-32,9,32,510,`lower`],[3339,9,32,511],[2,0]];break;case 10:n=[[-21,7,4,122],[-5,8,0,252],[-4,7,0,123],[-3,5,0,24],[-2,2,2,0],[2,5,0,25],[3,6,0,54],[4,7,0,124],[5,8,0,253],[6,2,6,1],[70,5,5,26],[102,6,5,55],[134,6,6,56],[198,6,7,57],[326,6,8,58],[582,6,9,59],[1094,6,10,60],[2118,7,11,125],[-22,8,32,254,`lower`],[4166,8,32,255],[2,2]];break;case 11:n=[[1,1,0,0],[2,2,1,2],[4,4,0,12],[5,4,1,13],[7,5,1,28],[9,5,2,29],[13,6,2,60],[17,7,2,122],[21,7,3,123],[29,7,4,124],[45,7,5,125],[77,7,6,126],[141,7,32,127]];break;case 12:n=[[1,1,0,0],[2,2,0,2],[3,3,1,6],[5,5,0,28],[6,5,1,29],[8,6,1,60],[10,7,0,122],[11,7,1,123],[13,7,2,124],[17,7,3,125],[25,7,4,126],[41,8,5,254],[73,8,32,255]];break;case 13:n=[[1,1,0,0],[2,3,0,4],[3,4,0,12],[4,5,0,28],[5,4,1,13],[7,3,3,5],[15,6,1,58],[17,6,2,59],[21,6,3,60],[29,6,4,61],[45,6,5,62],[77,7,6,126],[141,7,32,127]];break;case 14:n=[[-2,3,0,4],[-1,3,0,5],[0,1,0,0],[1,3,0,6],[2,3,0,7]];break;case 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