cafe-ofd/package/index.umd.min.js

A vue component for Ofd

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y(t,e={}){if(!t||"function"!==typeof t.next)throw new Error('CCITTFaxDecoder - invalid "source" parameter.');this.source=t,this.eof=!1,this.encoding=e.K||0,this.eoline=e.EndOfLine||!1,this.byteAlign=e.EncodedByteAlign||!1,this.columns=e.Columns||1728,this.rows=e.Rows||0;let r,i=e.EndOfBlock;null!==i&&void 0!==i||(i=!0),this.eoblock=i,this.black=e.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;while(0===(r=this._lookBits(12)))this._eatBits(1);1===r&&this._eatBits(12),this.encoding>0&&(this.nextLine2D=!this._lookBits(1),this._eatBits(1))}return y.prototype={readNextChar(){if(this.eof)return-1;const t=this.refLine,h=this.codingLine,f=this.columns;let p,g,m,b,y;if(0===this.outputBits){if(this.rowsDone&&(this.eof=!0),this.eof)return-1;let m,y,v;if(this.err=!1,this.nextLine2D){for(b=0;h[b]<f;++b)t[b]=h[b];t[b++]=f,t[b]=f,h[0]=0,this.codingPos=0,p=0,g=0;while(h[this.codingPos]<f)switch(m=this._getTwoDimCode(),m){case r:this._addPixels(t[p+1],g),t[p+1]<f&&(p+=2);break;case i:if(m=y=0,g){do{m+=v=this._getBlackCode()}while(v>=64);do{y+=v=this._getWhiteCode()}while(v>=64)}else{do{m+=v=this._getWhiteCode()}while(v>=64);do{y+=v=this._getBlackCode()}while(v>=64)}this._addPixels(h[this.codingPos]+m,g),h[this.codingPos]<f&&this._addPixels(h[this.codingPos]+y,1^g);while(t[p]<=h[this.codingPos]&&t[p]<f)p+=2;break;case l:if(this._addPixels(t[p]+3,g),g^=1,h[this.codingPos]<f){++p;while(t[p]<=h[this.codingPos]&&t[p]<f)p+=2}break;case c:if(this._addPixels(t[p]+2,g),g^=1,h[this.codingPos]<f){++p;while(t[p]<=h[this.codingPos]&&t[p]<f)p+=2}break;case o:if(this._addPixels(t[p]+1,g),g^=1,h[this.codingPos]<f){++p;while(t[p]<=h[this.codingPos]&&t[p]<f)p+=2}break;case n:if(this._addPixels(t[p],g),g^=1,h[this.codingPos]<f){++p;while(t[p]<=h[this.codingPos]&&t[p]<f)p+=2}break;case d:if(this._addPixelsNeg(t[p]-3,g),g^=1,h[this.codingPos]<f){p>0?--p:++p;while(t[p]<=h[this.codingPos]&&t[p]<f)p+=2}break;case u:if(this._addPixelsNeg(t[p]-2,g),g^=1,h[this.codingPos]<f){p>0?--p:++p;while(t[p]<=h[this.codingPos]&&t[p]<f)p+=2}break;case a:if(this._addPixelsNeg(t[p]-1,g),g^=1,h[this.codingPos]<f){p>0?--p:++p;while(t[p]<=h[this.codingPos]&&t[p]<f)p+=2}break;case e:this._addPixels(f,0),this.eof=!0;break;default:s("bad 2d code"),this._addPixels(f,0),this.err=!0}}else{h[0]=0,this.codingPos=0,g=0;while(h[this.codingPos]<f){if(m=0,g)do{m+=v=this._getBlackCode()}while(v>=64);else do{m+=v=this._getWhiteCode()}while(v>=64);this._addPixels(h[this.codingPos]+m,g),g^=1}}let S=!1;if(this.byteAlign&&(this.inputBits&=-8),this.eoblock||this.row!==this.rows-1){if(m=this._lookBits(12),this.eoline)while(m!==e&&1!==m)this._eatBits(1),m=this._lookBits(12);else while(0===m)this._eatBits(1),m=this._lookBits(12);1===m?(this._eatBits(12),S=!0):m===e&&(this.eof=!0)}else this.rowsDone=!0;if(!this.eof&&this.encoding>0&&!this.rowsDone&&(this.nextLine2D=!this._lookBits(1),this._eatBits(1)),this.eoblock&&S&&this.byteAlign){if(m=this._lookBits(12),1===m){if(this._eatBits(12),this.encoding>0&&(this._lookBits(1),this._eatBits(1)),this.encoding>=0)for(b=0;b<4;++b)m=this._lookBits(12),1!==m&&s("bad rtc code: "+m),this._eatBits(12),this.encoding>0&&(this._lookBits(1),this._eatBits(1));this.eof=!0}}else if(this.err&&this.eoline){while(1){if(m=this._lookBits(13),m===e)return this.eof=!0,-1;if(m>>1===1)break;this._eatBits(1)}this._eatBits(12),this.encoding>0&&(this._eatBits(1),this.nextLine2D=!(1&m))}h[0]>0?this.outputBits=h[this.codingPos=0]:this.outputBits=h[this.codingPos=1],this.row++}if(this.outputBits>=8)y=1&this.codingPos?0:255,this.outputBits-=8,0===this.outputBits&&h[this.codingPos]<f&&(this.codingPos++,this.outputBits=h[this.codingPos]-h[this.codingPos-1]);else{m=8,y=0;do{this.outputBits>m?(y<<=m,1&this.codingPos||(y|=255>>8-m),this.outputBits-=m,m=0):(y<<=this.outputBits,1&this.codingPos||(y|=255>>8-this.outputBits),m-=this.outputBits,this.outputBits=0,h[this.codingPos]<f?(this.codingPos++,this.outputBits=h[this.codingPos]-h[this.codingPos-1]):m>0&&(y<<=m,m=0))}while(m)}return this.black&&(y^=255),y},_addPixels(t,e){const r=this.codingLine;let i=this.codingPos;t>r[i]&&(t>this.columns&&(s("row is wrong length"),this.err=!0,t=this.columns),1&i^e&&++i,r[i]=t),this.codingPos=i},_addPixelsNeg(t,e){const r=this.codingLine;let i=this.codingPos;if(t>r[i])t>this.columns&&(s("row is wrong length"),this.err=!0,t=this.columns),1&i^e&&++i,r[i]=t;else if(t<r[i]){t<0&&(s("invalid code"),this.err=!0,t=0);while(i>0&&t<r[i-1])--i;r[i]=t}this.codingPos=i},_findTableCode(t,r,i,n){const s=n||0;for(let o=t;o<=r;++o){let t=this._lookBits(o);if(t===e)return[!0,1,!1];if(o<r&&(t<<=r-o),!s||t>=s){const e=i[t-s];if(e[0]===o)return this._eatBits(o),[!0,e[1],!0]}}return[!1,0,!1]},_getTwoDimCode(){let t,r=0;if(this.eoblock){if(r=this._lookBits(7),t=h[r],t&&t[0]>0)return this._eatBits(t[0]),t[1]}else{const t=this._findTableCode(1,7,h);if(t[0]&&t[2])return t[1]}return s("Bad two dim code"),e},_getWhiteCode(){let t,r=0;if(this.eoblock){if(r=this._lookBits(12),r===e)return 1;if(t=r>>5===0?f[r]:p[r>>3],t[0]>0)return this._eatBits(t[0]),t[1]}else{let t=this._findTableCode(1,9,p);if(t[0])return t[1];if(t=this._findTableCode(11,12,f),t[0])return t[1]}return s("bad white code"),this._eatBits(1),1},_getBlackCode(){let t,r;if(this.eoblock){if(t=this._lookBits(13),t===e)return 1;if(r=t>>7===0?g[t]:t>>9===0&&t>>7!==0?m[(t>>1)-64]:b[t>>7],r[0]>0)return this._eatBits(r[0]),r[1]}else{let t=this._findTableCode(2,6,b);if(t[0])return t[1];if(t=this._findTableCode(7,12,m,64),t[0])return t[1];if(t=this._findTableCode(10,13,g),t[0])return t[1]}return s("bad black code"),this._eatBits(1),1},_lookBits(t){let r;while(this.inputBits<t){if(-1===(r=this.source.next()))return 0===this.inputBits?e:this.inputBuf<<t-this.inputBits&65535>>16-t;this.inputBuf=this.inputBuf<<8|r,this.inputBits+=8}return this.inputBuf>>this.inputBits-t&65535>>16-t},_eatBits(t){(this.inputBits-=t)<0&&(this.inputBits=0)}},y}();class m extends c{constructor(t){super("JBIG2 error: "+t)}}var b=function(){function t(){}function e(t,e,r){this.data=t,this.start=e,this.end=r}function r(t,e,r){var i=t.getContexts(e),n=1;function s(t){for(var e=0,s=0;s<t;s++){var o=r.readBit(i,n);n=n<256?n<<1|o:511&(n<<1|o)|256,e=e<<1|o}return e>>>0}var o=s(1),a=s(1)?s(1)?s(1)?s(1)?s(1)?s(32)+4436:s(12)+340:s(8)+84:s(6)+20:s(4)+4:s(2);return 0===o?a:a>0?-a:null}function i(t,e,r){for(var i=t.getContexts("IAID"),n=1,s=0;s<r;s++){var o=e.readBit(i,n);n=n<<1|o}return r<31?n&(1<<r)-1:2147483647&n}t.prototype={getContexts(t){return t in this?this[t]:this[t]=new Int8Array(65536)}},e.prototype={get decoder(){var t=new p(this.data,this.start,this.end);return a(this,"decoder",t)},get contextCache(){var e=new t;return a(this,"contextCache",e)}};var n=["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"],s=[[{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}]}],c=[39717,1941,229,405],f=[32,8];function b(t,e,r){var i,n,s,o,a,c,u,l=r.decoder,d=r.contextCache.getContexts("GB"),h=[],f=31735;for(n=0;n<e;n++)for(a=h[n]=new Uint8Array(t),c=n<1?a:h[n-1],u=n<2?a:h[n-2],i=u[0]<<13|u[1]<<12|u[2]<<11|c[0]<<7|c[1]<<6|c[2]<<5|c[3]<<4,s=0;s<t;s++)a[s]=o=l.readBit(d,i),i=(i&f)<<1|(s+3<t?u[s+3]<<11:0)|(s+4<t?c[s+4]<<4:0)|o;return h}function y(t,e,r,i,n,o,a,u){if(t){const t=new j(u.data,u.start,u.end);return X(t,e,r,!1)}if(0===i&&!o&&!n&&4===a.length&&3===a[0].x&&-1===a[0].y&&-3===a[1].x&&-1===a[1].y&&2===a[2].x&&-2===a[2].y&&-2===a[3].x&&-2===a[3].y)return b(e,r,u);var l=!!o,d=s[i].concat(a);d.sort((function(t,e){return t.y-e.y||t.x-e.x}));var h,f,p=d.length,g=new Int8Array(p),m=new Int8Array(p),y=[],v=0,S=0,w=0,A=0;for(f=0;f<p;f++)g[f]=d[f].x,m[f]=d[f].y,S=Math.min(S,d[f].x),w=Math.max(w,d[f].x),A=Math.min(A,d[f].y),f<p-1&&d[f].y===d[f+1].y&&d[f].x===d[f+1].x-1?v|=1<<p-1-f:y.push(f);var E=y.length,C=new Int8Array(E),x=new Int8Array(E),I=new Uint16Array(E);for(h=0;h<E;h++)f=y[h],C[h]=d[f].x,x[h]=d[f].y,I[h]=1<<p-1-f;for(var T,_,P,F,D,R=-S,N=-A,O=e-w,B=c[i],k=new Uint8Array(e),M=[],H=u.decoder,K=u.contextCache.getContexts("GB"),L=0,V=0,U=0;U<r;U++){if(n){var q=H.readBit(K,B);if(L^=q,L){M.push(k);continue}}for(k=new Uint8Array(k),M.push(k),T=0;T<e;T++)if(l&&o[U][T])k[T]=0;else{if(T>=R&&T<O&&U>=N)for(V=V<<1&v,f=0;f<E;f++)_=U+x[f],P=T+C[f],F=M[_][P],F&&(F=I[f],V|=F);else for(V=0,D=p-1,f=0;f<p;f++,D--)P=T+g[f],P>=0&&P<e&&(_=U+m[f],_>=0&&(F=M[_][P],F&&(V|=F<<D)));var z=H.readBit(K,V);k[T]=z}}return M}function v(t,e,r,i,n,s,a,c,u){var l=o[r].coding;0===r&&(l=l.concat([c[0]]));var d,h=l.length,p=new Int32Array(h),g=new Int32Array(h);for(d=0;d<h;d++)p[d]=l[d].x,g[d]=l[d].y;var b=o[r].reference;0===r&&(b=b.concat([c[1]]));var y=b.length,v=new Int32Array(y),S=new Int32Array(y);for(d=0;d<y;d++)v[d]=b[d].x,S[d]=b[d].y;for(var w=i[0].length,A=i.length,E=f[r],C=[],x=u.decoder,I=u.contextCache.getContexts("GR"),T=0,_=0;_<e;_++){if(a){var P=x.readBit(I,E);if(T^=P,T)throw new m("prediction is not supported")}var F=new Uint8Array(t);C.push(F);for(var D=0;D<t;D++){var R,N,O=0;for(d=0;d<h;d++)R=_+g[d],N=D+p[d],R<0||N<0||N>=t?O<<=1:O=O<<1|C[R][N];for(d=0;d<y;d++)R=_+S[d]-s,N=D+v[d]-n,R<0||R>=A||N<0||N>=w?O<<=1:O=O<<1|i[R][N];var B=x.readBit(I,O);F[D]=B}}return C}function S(t,e,n,s,o,a,c,l,d,h,f,p){if(t&&e)throw new m("symbol refinement with Huffman is not supported");var g=[],b=0,S=u(n.length+s),A=f.decoder,E=f.contextCache;let C,x;t&&(C=H(1),x=[],S=Math.max(S,1));while(g.length<s){var I=t?a.tableDeltaHeight.decode(p):r(E,"IADH",A);b+=I;let s=0,o=0;const u=t?x.length:0;while(1){var T,_=t?a.tableDeltaWidth.decode(p):r(E,"IADW",A);if(null===_)break;if(s+=_,o+=s,e){var P=r(E,"IAAI",A);if(P>1)T=w(t,e,s,b,0,P,1,n.concat(g),S,0,0,1,0,a,d,h,f,0,p);else{var F=i(E,A,S),D=r(E,"IARDX",A),R=r(E,"IARDY",A),N=F<n.length?n[F]:g[F-n.length];T=v(s,b,d,N,D,R,!1,h,f)}g.push(T)}else t?x.push(s):(T=y(!1,s,b,c,!1,null,l,f),g.push(T))}if(t&&!e){const t=a.tableBitmapSize.decode(p);let e;if(p.byteAlign(),0===t)e=U(p,o,b);else{const r=p.end,i=p.position+t;p.end=i,e=X(p,o,b,!1),p.end=r,p.position=i}const r=x.length;if(u===r-1)g.push(e);else{let t,i,n,s,o,a=0;for(t=u;t<r;t++){for(s=x[t],n=a+s,o=[],i=0;i<b;i++)o.push(e[i].subarray(a,n));g.push(o),a=n}}}}var O=[],B=[],k=!1,M=n.length+s;while(B.length<M){var j=t?C.decode(p):r(E,"IAEX",A);while(j--)B.push(k);k=!k}for(var K=0,L=n.length;K<L;K++)B[K]&&O.push(n[K]);for(var V=0;V<s;K++,V++)B[K]&&O.push(g[V]);return O}function w(t,e,n,s,o,a,c,u,l,d,h,f,p,g,b,y,S,w,A){if(t&&e)throw new m("refinement with Huffman is not supported");var E,C,x=[];for(E=0;E<s;E++){if(C=new Uint8Array(n),o)for(var I=0;I<n;I++)C[I]=o;x.push(C)}var T=S.decoder,_=S.contextCache,P=t?-g.tableDeltaT.decode(A):-r(_,"IADT",T),F=0;E=0;while(E<a){var D=t?g.tableDeltaT.decode(A):r(_,"IADT",T);P+=D;var R=t?g.tableFirstS.decode(A):r(_,"IAFS",T);F+=R;var N=F;do{let s=0;c>1&&(s=t?A.readBits(w):r(_,"IAIT",T));var O=c*P+s,B=t?g.symbolIDTable.decode(A):i(_,T,l),k=e&&(t?A.readBit():r(_,"IARI",T)),M=u[B],H=M[0].length,j=M.length;if(k){var K=r(_,"IARDW",T),L=r(_,"IARDH",T),V=r(_,"IARDX",T),U=r(_,"IARDY",T);H+=K,j+=L,M=v(H,j,b,M,(K>>1)+V,(L>>1)+U,!1,y,S)}var X,q,z,W=O-(1&f?0:j-1),G=N-(2&f?H-1:0);if(d){for(X=0;X<j;X++)if(C=x[G+X],C){z=M[X];var $=Math.min(n-W,H);switch(p){case 0:for(q=0;q<$;q++)C[W+q]|=z[q];break;case 2:for(q=0;q<$;q++)C[W+q]^=z[q];break;default:throw new m(`operator ${p} is not supported`)}}N+=j-1}else{for(q=0;q<j;q++)if(C=x[W+q],C)switch(z=M[q],p){case 0:for(X=0;X<H;X++)C[G+X]|=z[X];break;case 2:for(X=0;X<H;X++)C[G+X]^=z[X];break;default:throw new m(`operator ${p} is not supported`)}N+=H-1}E++;var Y=t?g.tableDeltaS.decode(A):r(_,"IADS",T);if(null===Y)break;N+=Y+h}while(1)}return x}function A(t,e,r,i,n,s){const o=[];t||(o.push({x:-e,y:0}),0===n&&(o.push({x:-3,y:-1}),o.push({x:2,y:-2}),o.push({x:-2,y:-2})));const a=(i+1)*e,c=y(t,a,r,n,!1,null,o,s),u=[];for(let l=0;l<=i;l++){const t=[],i=e*l,n=i+e;for(let e=0;e<r;e++)t.push(c[e].subarray(i,n));u.push(t)}return u}function E(t,e,r,i,n,s,o,a,c,l,d,h,f,p,g){const b=null;if(o)throw new m("skip is not supported");if(0!==a)throw new m("operator "+a+" is not supported in halftone region");const v=[];let S,w,A;for(S=0;S<n;S++){if(A=new Uint8Array(i),s)for(w=0;w<i;w++)A[w]=s;v.push(A)}const E=e.length,C=e[0],x=C[0].length,I=C.length,T=u(E),_=[];t||(_.push({x:r<=1?3:2,y:-1}),0===r&&(_.push({x:-3,y:-1}),_.push({x:2,y:-2}),_.push({x:-2,y:-2})));const P=[];let F,D,R,N,O,B,k,M,H,K,L;for(t&&(F=new j(g.data,g.start,g.end)),S=T-1;S>=0;S--)D=t?X(F,c,l,!0):y(!1,c,l,r,!1,b,_,g),P[S]=D;for(R=0;R<l;R++)for(N=0;N<c;N++){for(O=0,B=0,w=T-1;w>=0;w--)O=P[w][R][N]^O,B|=O<<w;if(k=e[B],M=d+R*p+N*f>>8,H=h+R*f-N*p>>8,M>=0&&M+x<=i&&H>=0&&H+I<=n)for(S=0;S<I;S++)for(L=v[H+S],K=k[S],w=0;w<x;w++)L[M+w]|=K[w];else{let t,e;for(S=0;S<I;S++)if(e=H+S,!(e<0||e>=n))for(L=v[e],K=k[S],w=0;w<x;w++)t=M+w,t>=0&&t<i&&(L[t]|=K[w])}}return v}function C(t,e){var r={};r.number=h(t,e);var i=t[e+4],s=63&i;if(!n[s])throw new m("invalid segment type: "+s);r.type=s,r.typeName=n[s],r.deferredNonRetain=!!(128&i);var o=!!(64&i),a=t[e+5],c=a>>5&7,u=[31&a],l=e+6;if(7===a){c=536870911&h(t,l-1),l+=3;var f=c+7>>3;u[0]=t[l++];while(--f>0)u.push(t[l++])}else if(5===a||6===a)throw new m("invalid referred-to flags");r.retainBits=u;let p=4;r.number<=256?p=1:r.number<=65536&&(p=2);var g,b,y=[];for(g=0;g<c;g++){let e;e=1===p?t[l]:2===p?d(t,l):h(t,l),y.push(e),l+=p}if(r.referredTo=y,o?(r.pageAssociation=h(t,l),l+=4):r.pageAssociation=t[l++],r.length=h(t,l),l+=4,4294967295===r.length){if(38!==s)throw new m("invalid unknown segment length");var v=I(t,l),S=t[l+T],w=!!(1&S),A=6,E=new Uint8Array(A);for(w||(E[0]=255,E[1]=172),E[2]=v.height>>>24&255,E[3]=v.height>>16&255,E[4]=v.height>>8&255,E[5]=255&v.height,g=l,b=t.length;g<b;g++){var C=0;while(C<A&&E[C]===t[g+C])C++;if(C===A){r.length=g+A;break}}if(4294967295===r.length)throw new m("segment end was not found")}return r.headerEnd=l,r}function x(t,e,r,i){var n=[],s=r;while(s<i){var o=C(e,s);s=o.headerEnd;var a={header:o,data:e};if(t.randomAccess||(a.start=s,s+=o.length,a.end=s),n.push(a),51===o.type)break}if(t.randomAccess)for(var c=0,u=n.length;c<u;c++)n[c].start=s,s+=n[c].header.length,n[c].end=s;return n}function I(t,e){return{width:h(t,e),height:h(t,e+4),x:h(t,e+8),y:h(t,e+12),combinationOperator:7&t[e+16]}}var T=17;function _(t,e){var r,i,n,s,o=t.header,a=t.data,c=t.start,u=t.end;switch(o.type){case 0:var 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y=d(a,c);c+=2,g.huffmanFS=3&y,g.huffmanDS=y>>2&3,g.huffmanDT=y>>4&3,g.huffmanRefinementDW=y>>6&3,g.huffmanRefinementDH=y>>8&3,g.huffmanRefinementDX=y>>10&3,g.huffmanRefinementDY=y>>12&3,g.huffmanRefinementSizeSelector=!!(16384&y)}if(g.refinement&&!g.refinementTemplate){for(i=[],n=0;n<2;n++)i.push({x:l(a,c),y:l(a,c+1)}),c+=2;g.refinementAt=i}g.numberOfSymbolInstances=h(a,c),c+=4,r=[g,o.referredTo,a,c,u];break;case 16:const t={},e=a[c++];t.mmr=!!(1&e),t.template=e>>1&3,t.patternWidth=a[c++],t.patternHeight=a[c++],t.maxPatternIndex=h(a,c),c+=4,r=[t,o.number,a,c,u];break;case 22:case 23:const E={};E.info=I(a,c),c+=T;const C=a[c++];E.mmr=!!(1&C),E.template=C>>1&3,E.enableSkip=!!(8&C),E.combinationOperator=C>>4&7,E.defaultPixelValue=C>>7&1,E.gridWidth=h(a,c),c+=4,E.gridHeight=h(a,c),c+=4,E.gridOffsetX=4294967295&h(a,c),c+=4,E.gridOffsetY=4294967295&h(a,c),c+=4,E.gridVectorX=d(a,c),c+=2,E.gridVectorY=d(a,c),c+=2,r=[E,o.referredTo,a,c,u];break;case 38:case 39:var v={};v.info=I(a,c),c+=T;var S=a[c++];if(v.mmr=!!(1&S),v.template=S>>1&3,v.prediction=!!(8&S),!v.mmr){for(s=0===v.template?4:1,i=[],n=0;n<s;n++)i.push({x:l(a,c),y:l(a,c+1)}),c+=2;v.at=i}r=[v,a,c,u];break;case 48:var w={width:h(a,c),height:h(a,c+4),resolutionX:h(a,c+8),resolutionY:h(a,c+12)};4294967295===w.height&&delete w.height;var A=a[c+16];d(a,c+17),w.lossless=!!(1&A),w.refinement=!!(2&A),w.defaultPixelValue=A>>2&1,w.combinationOperator=A>>3&3,w.requiresBuffer=!!(32&A),w.combinationOperatorOverride=!!(64&A),r=[w];break;case 49:break;case 50:break;case 51:break;case 53:r=[o.number,a,c,u];break;case 62:break;default:throw new m(`segment type ${o.typeName}(${o.type}) is not implemented`)}var E="on"+o.typeName;E in e&&e[E].apply(e,r)}function P(t,e){for(var r=0,i=t.length;r<i;r++)_(t[r],e)}function F(t){for(var e=new R,r=0,i=t.length;r<i;r++){var n=t[r],s=x({},n.data,n.start,n.end);P(s,e)}return e.buffer}function D(t){const e=t.length;let r=0;if(151!==t[r]||74!==t[r+1]||66!==t[r+2]||50!==t[r+3]||13!==t[r+4]||10!==t[r+5]||26!==t[r+6]||10!==t[r+7])throw new m("parseJbig2 - invalid header.");const i=Object.create(null);r+=8;const n=t[r++];i.randomAccess=!(1&n),2&n||(i.numberOfPages=h(t,r),r+=4);const s=x(i,t,r,e),o=new R;P(s,o);const{width:a,height:c}=o.currentPageInfo,u=o.buffer,l=new Uint8ClampedArray(a*c);let d=0,f=0;for(let h=0;h<c;h++){let t,e=0;for(let r=0;r<a;r++)e||(e=128,t=u[f++]),l[d++]=t&e?0:255,e>>=1}return{imgData:l,width:a,height:c}}function R(){}function N(t){2===t.length?(this.isOOB=!0,this.rangeLow=0,this.prefixLength=t[0],this.rangeLength=0,this.prefixCode=t[1],this.isLowerRange=!1):(this.isOOB=!1,this.rangeLow=t[0],this.prefixLength=t[1],this.rangeLength=t[2],this.prefixCode=t[3],this.isLowerRange="lower"===t[4])}function O(t){this.children=[],t?(this.isLeaf=!0,this.rangeLength=t.rangeLength,this.rangeLow=t.rangeLow,this.isLowerRange=t.isLowerRange,this.isOOB=t.isOOB):this.isLeaf=!1}function B(t,e){e||this.assignPrefixCodes(t),this.rootNode=new O(null);for(let r=0,i=t.length;r<i;r++){const e=t[r];e.prefixLength>0&&this.rootNode.buildTree(e,e.prefixLength-1)}}function k(t,e,r){const i=t[e],n=4294967295&h(t,e+1),s=4294967295&h(t,e+5),o=new j(t,e+9,r),a=1+(i>>1&7),c=1+(i>>4&7),u=[];let l,d,f=n;do{l=o.readBits(a),d=o.readBits(c),u.push(new N([f,l,d,0])),f+=1<<d}while(f<s);return l=o.readBits(a),u.push(new N([n-1,l,32,0,"lower"])),l=o.readBits(a),u.push(new N([s,l,32,0])),1&i&&(l=o.readBits(a),u.push(new N([l,0]))),new B(u,!1)}R.prototype={onPageInformation:function(t){this.currentPageInfo=t;var e=t.width+7>>3,r=new Uint8ClampedArray(e*t.height);if(t.defaultPixelValue)for(var i=0,n=r.length;i<n;i++)r[i]=255;this.buffer=r},drawBitmap:function(t,e){var r,i,n,s,o=this.currentPageInfo,a=t.width,c=t.height,u=o.width+7>>3,l=o.combinationOperatorOverride?t.combinationOperator:o.combinationOperator,d=this.buffer,h=128>>(7&t.x),f=t.y*u+(t.x>>3);switch(l){case 0:for(r=0;r<c;r++){for(n=h,s=f,i=0;i<a;i++)e[r][i]&&(d[s]|=n),n>>=1,n||(n=128,s++);f+=u}break;case 2:for(r=0;r<c;r++){for(n=h,s=f,i=0;i<a;i++)e[r][i]&&(d[s]^=n),n>>=1,n||(n=128,s++);f+=u}break;default:throw new m(`operator ${l} is not supported`)}},onImmediateGenericRegion:function(t,r,i,n){var s=t.info,o=new e(r,i,n),a=y(t.mmr,s.width,s.height,t.template,t.prediction,null,t.at,o);this.drawBitmap(s,a)},onImmediateLosslessGenericRegion:function(){this.onImmediateGenericRegion.apply(this,arguments)},onSymbolDictionary:function(t,r,i,n,s,o){let a,c;t.huffman&&(a=V(t,i,this.customTables),c=new j(n,s,o));var u=this.symbols;u||(this.symbols=u={});for(var l=[],d=0,h=i.length;d<h;d++){const t=u[i[d]];t&&(l=l.concat(t))}var f=new e(n,s,o);u[r]=S(t.huffman,t.refinement,l,t.numberOfNewSymbols,t.numberOfExportedSymbols,a,t.template,t.at,t.refinementTemplate,t.refinementAt,f,c)},onImmediateTextRegion:function(t,r,i,n,s){var o=t.info;let a,c;for(var l=this.symbols,d=[],h=0,f=r.length;h<f;h++){const t=l[r[h]];t&&(d=d.concat(t))}var p=u(d.length);t.huffman&&(c=new j(i,n,s),a=L(t,r,this.customTables,d.length,c));var g=new e(i,n,s),m=w(t.huffman,t.refinement,o.width,o.height,t.defaultPixelValue,t.num