pdfjs-dist/legacy/image_decoders/pdf.image_decoders.min.js

Generic build of Mozilla's PDF.js library.

/**
 * @licstart The following is the entire license notice for the
 * JavaScript code in this page
 *
 * Copyright 2022 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @licend The above is the entire license notice for the
 * JavaScript code in this page
 */
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applyTransform(e,t){return[e[0]*t[0]+e[1]*t[2]+t[4],e[0]*t[1]+e[1]*t[3]+t[5]]}static applyInverseTransform(e,t){const n=t[0]*t[3]-t[1]*t[2];return[(e[0]*t[3]-e[1]*t[2]+t[2]*t[5]-t[4]*t[3])/n,(-e[0]*t[1]+e[1]*t[0]+t[4]*t[1]-t[5]*t[0])/n]}static getAxialAlignedBoundingBox(e,t){const n=Util.applyTransform(e,t),r=Util.applyTransform(e.slice(2,4),t),i=Util.applyTransform([e[0],e[3]],t),o=Util.applyTransform([e[2],e[1]],t);return[Math.min(n[0],r[0],i[0],o[0]),Math.min(n[1],r[1],i[1],o[1]),Math.max(n[0],r[0],i[0],o[0]),Math.max(n[1],r[1],i[1],o[1])]}static inverseTransform(e){const t=e[0]*e[3]-e[1]*e[2];return[e[3]/t,-e[1]/t,-e[2]/t,e[0]/t,(e[2]*e[5]-e[4]*e[3])/t,(e[4]*e[1]-e[5]*e[0])/t]}static apply3dTransform(e,t){return[e[0]*t[0]+e[1]*t[1]+e[2]*t[2],e[3]*t[0]+e[4]*t[1]+e[5]*t[2],e[6]*t[0]+e[7]*t[1]+e[8]*t[2]]}static singularValueDecompose2dScale(e){const 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r=n(10);e.exports=!r((function(){function F(){}F.prototype.constructor=null;return Object.getPrototypeOf(new F)!==F.prototype}))},(e,t,n)=>{var r=n(17),i=n(48),o=n(85);e.exports=Object.setPrototypeOf||("__proto__"in{}?function(){var e,t=!1,n={};try{(e=r(Object.getOwnPropertyDescriptor(Object.prototype,"__proto__").set))(n,[]);t=n instanceof Array}catch(e){}return function setPrototypeOf(n,r){i(n);o(r);t?e(n,r):n.__proto__=r;return n}}():void 0)},(e,t,n)=>{var r=n(23),i=String,o=TypeError;e.exports=function(e){if("object"==typeof e||r(e))return e;throw o("Can't set "+i(e)+" as a prototype")}},(e,t,n)=>{"use strict";Object.defineProperty(t,"__esModule",{value:!0});t.Jbig2Image=void 0;var r=n(1),i=n(87),o=n(90),s=n(91);class Jbig2Error extends r.BaseException{constructor(e){super(`JBIG2 error: ${e}`,"Jbig2Error")}}class ContextCache{getContexts(e){return e in this?this[e]:this[e]=new Int8Array(65536)}}class DecodingContext{constructor(e,t,n){this.data=e;this.start=t;this.end=n}get 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a=["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"],c=[[{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}]],l=[{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}]}],f=[39717,1941,229,405],u=[32,8];function decodeBitmap(e,t,n,r,i,o,s,a){if(e){return decodeMMRBitmap(new Reader(a.data,a.start,a.end),t,n,!1)}if(0===r&&!o&&!i&&4===s.length&&3===s[0].x&&-1===s[0].y&&-3===s[1].x&&-1===s[1].y&&2===s[2].x&&-2===s[2].y&&-2===s[3].x&&-2===s[3].y)return function decodeBitmapTemplate0(e,t,n){const r=n.decoder,i=n.contextCache.getContexts("GB"),o=[];let s,a,c,l,f,u,h;for(a=0;a<t;a++){f=o[a]=new Uint8Array(e);u=a<1?f:o[a-1];h=a<2?f:o[a-2];s=h[0]<<13|h[1]<<12|h[2]<<11|u[0]<<7|u[1]<<6|u[2]<<5|u[3]<<4;for(c=0;c<e;c++){f[c]=l=r.readBit(i,s);s=(31735&s)<<1|(c+3<e?h[c+3]<<11:0)|(c+4<e?u[c+4]<<4:0)|l}}return o}(t,n,a);const l=!!o,u=c[r].concat(s);u.sort((function(e,t){return e.y-t.y||e.x-t.x}));const h=u.length,d=new Int8Array(h),p=new Int8Array(h),g=[];let m,b,y=0,x=0,w=0,T=0;for(b=0;b<h;b++){d[b]=u[b].x;p[b]=u[b].y;x=Math.min(x,u[b].x);w=Math.max(w,u[b].x);T=Math.min(T,u[b].y);b<h-1&&u[b].y===u[b+1].y&&u[b].x===u[b+1].x-1?y|=1<<h-1-b:g.push(b)}const S=g.length,C=new Int8Array(S),P=new Int8Array(S),v=new Uint16Array(S);for(m=0;m<S;m++){b=g[m];C[m]=u[b].x;P[m]=u[b].y;v[m]=1<<h-1-b}const E=-x,I=-T,A=t-w,k=f[r];let O=new Uint8Array(t);const _=[],B=a.decoder,D=a.contextCache.getContexts("GB");let M,R,L,U,N,j=0,H=0;for(let e=0;e<n;e++){if(i){j^=B.readBit(D,k);if(j){_.push(O);continue}}O=new Uint8Array(O);_.push(O);for(M=0;M<t;M++){if(l&&o[e][M]){O[M]=0;continue}if(M>=E&&M<A&&e>=I){H=H<<1&y;for(b=0;b<S;b++){R=e+P[b];L=M+C[b];U=_[R][L];if(U){U=v[b];H|=U}}}else{H=0;N=h-1;for(b=0;b<h;b++,N--){L=M+d[b];if(L>=0&&L<t){R=e+p[b];if(R>=0){U=_[R][L];U&&(H|=U<<N)}}}}const n=B.readBit(D,H);O[M]=n}}return _}function decodeRefinement(e,t,n,r,i,o,s,a,c){let f=l[n].coding;0===n&&(f=f.concat([a[0]]));const h=f.length,d=new Int32Array(h),p=new Int32Array(h);let g;for(g=0;g<h;g++){d[g]=f[g].x;p[g]=f[g].y}let m=l[n].reference;0===n&&(m=m.concat([a[1]]));const b=m.length,y=new Int32Array(b),x=new Int32Array(b);for(g=0;g<b;g++){y[g]=m[g].x;x[g]=m[g].y}const w=r[0].length,T=r.length,S=u[n],C=[],P=c.decoder,v=c.contextCache.getContexts("GR");let E=0;for(let n=0;n<t;n++){if(s){E^=P.readBit(v,S);if(E)throw new Jbig2Error("prediction is not supported")}const t=new Uint8Array(e);C.push(t);for(let s=0;s<e;s++){let a,c,l=0;for(g=0;g<h;g++){a=n+p[g];c=s+d[g];a<0||c<0||c>=e?l<<=1:l=l<<1|C[a][c]}for(g=0;g<b;g++){a=n+x[g]-o;c=s+y[g]-i;a<0||a>=T||c<0||c>=w?l<<=1:l=l<<1|r[a][c]}const f=P.readBit(v,l);t[s]=f}}return C}function decodeTextRegion(e,t,n,r,i,o,s,a,c,l,f,u,h,d,p,g,m,b,y){if(e&&t)throw new Jbig2Error("refinement with Huffman is not supported");const x=[];let w,T;for(w=0;w<r;w++){T=new Uint8Array(n);if(i)for(let e=0;e<n;e++)T[e]=i;x.push(T)}const S=m.decoder,C=m.contextCache;let P=e?-d.tableDeltaT.decode(y):-decodeInteger(C,"IADT",S),v=0;w=0;for(;w<o;){P+=e?d.tableDeltaT.decode(y):decodeInteger(C,"IADT",S);v+=e?d.tableFirstS.decode(y):decodeInteger(C,"IAFS",S);let r=v;for(;;){let i=0;s>1&&(i=e?y.readBits(b):decodeInteger(C,"IAIT",S));const o=s*P+i,v=e?d.symbolIDTable.decode(y):decodeIAID(C,S,c),E=t&&(e?y.readBit():decodeInteger(C,"IARI",S));let I=a[v],A=I[0].length,k=I.length;if(E){const e=decodeInteger(C,"IARDW",S),t=decodeInteger(C,"IARDH",S),n=decodeInteger(C,"IARDX",S),r=decodeInteger(C,"IARDY",S);A+=e;k+=t;I=decodeRefinement(A,k,p,I,(e>>1)+n,(t>>1)+r,!1,g,m)}const O=o-(1&u?0:k-1),_=r-(2&u?A-1:0);let B,D,M;if(l){for(B=0;B<k;B++){T=x[_+B];if(!T)continue;M=I[B];const e=Math.min(n-O,A);switch(h){case 0:for(D=0;D<e;D++)T[O+D]|=M[D];break;case 2:for(D=0;D<e;D++)T[O+D]^=M[D];break;default:throw new Jbig2Error(`operator ${h} is not supported`)}}r+=k-1}else{for(D=0;D<k;D++){T=x[O+D];if(T){M=I[D];switch(h){case 0:for(B=0;B<A;B++)T[_+B]|=M[B];break;case 2:for(B=0;B<A;B++)T[_+B]^=M[B];break;default:throw new Jbig2Error(`operator ${h} is not supported`)}}}r+=A-1}w++;const R=e?d.tableDeltaS.decode(y):decodeInteger(C,"IADS",S);if(null===R)break;r+=R+f}}return x}function readSegmentHeader(e,t){const n={};n.number=(0,i.readUint32)(e,t);const r=e[t+4],o=63&r;if(!a[o])throw new Jbig2Error("invalid segment type: "+o);n.type=o;n.typeName=a[o];n.deferredNonRetain=!!(128&r);const s=!!(64&r),c=e[t+5];let l=c>>5&7;const f=[31&c];let u=t+6;if(7===c){l=536870911&(0,i.readUint32)(e,u-1);u+=3;let t=l+7>>3;f[0]=e[u++];for(;--t>0;)f.push(e[u++])}else if(5===c||6===c)throw new Jbig2Error("invalid referred-to flags");n.retainBits=f;let d=4;n.number<=256?d=1:n.number<=65536&&(d=2);const p=[];let g,m;for(g=0;g<l;g++){let t;t=1===d?e[u]:2===d?(0,i.readUint16)(e,u):(0,i.readUint32)(e,u);p.push(t);u+=d}n.referredTo=p;if(s){n.pageAssociation=(0,i.readUint32)(e,u);u+=4}else n.pageAssociation=e[u++];n.length=(0,i.readUint32)(e,u);u+=4;if(4294967295===n.length){if(38!==o)throw new Jbig2Error("invalid unknown segment length");{const t=readRegionSegmentInformation(e,u),r=!!(1&e[u+h]),i=6,o=new Uint8Array(i);if(!r){o[0]=255;o[1]=172}o[2]=t.height>>>24&255;o[3]=t.height>>16&255;o[4]=t.height>>8&255;o[5]=255&t.height;for(g=u,m=e.length;g<m;g++){let t=0;for(;t<i&&o[t]===e[g+t];)t++;if(t===i){n.length=g+i;break}}if(4294967295===n.length)throw new Jbig2Error("segment end was not found")}}n.headerEnd=u;return n}function readSegments(e,t,n,r){const i=[];let o=n;for(;o<r;){const n=readSegmentHeader(t,o);o=n.headerEnd;const r={header:n,data:t};if(!e.randomAccess){r.start=o;o+=n.length;r.end=o}i.push(r);if(51===n.type)break}if(e.randomAccess)for(let e=0,t=i.length;e<t;e++){i[e].start=o;o+=i[e].header.length;i[e].end=o}return i}function readRegionSegmentInformation(e,t){return{width:(0,i.readUint32)(e,t),height:(0,i.readUint32)(e,t+4),x:(0,i.readUint32)(e,t+8),y:(0,i.readUint32)(e,t+12),combinationOperator:7&e[t+16]}}const h=17;function processSegment(e,t){const n=e.header,r=e.data,o=e.end;let s,a,c,l,f=e.start;switch(n.type){case 0:const e={},t=(0,i.readUint16)(r,f);e.huffman=!!(1&t);e.refinement=!!(2&t);e.huffmanDHSelector=t>>2&3;e.huffmanDWSelector=t>>4&3;e.bitmapSizeSelector=t>>6&1;e.aggregationInstancesSelector=t>>7&1;e.bitmapCodingContextUsed=!!(256&t);e.bitmapCodingContextRetained=!!(512&t);e.template=t>>10&3;e.refinementTemplate=t>>12&1;f+=2;if(!e.huffman){l=0===e.template?4:1;a=[];for(c=0;c<l;c++){a.push({x:(0,i.readInt8)(r,f),y:(0,i.readInt8)(r,f+1)});f+=2}e.at=a}if(e.refinement&&!e.refinementTemplate){a=[];for(c=0;c<2;c++){a.push({x:(0,i.readInt8)(r,f),y:(0,i.readInt8)(r,f+1)});f+=2}e.refinementAt=a}e.numberOfExportedSymbols=(0,i.readUint32)(r,f);f+=4;e.numberOfNewSymbols=(0,i.readUint32)(r,f);f+=4;s=[e,n.number,n.referredTo,r,f,o];break;case 6:case 7:const u={};u.info=readRegionSegmentInformation(r,f);f+=h;const d=(0,i.readUint16)(r,f);f+=2;u.huffman=!!(1&d);u.refinement=!!(2&d);u.logStripSize=d>>2&3;u.stripSize=1<<u.logStripSize;u.referenceCorner=d>>4&3;u.transposed=!!(64&d);u.combinationOperator=d>>7&3;u.defaultPixelValue=d>>9&1;u.dsOffset=d<<17>>27;u.refinementTemplate=d>>15&1;if(u.huffman){const e=(0,i.readUint16)(r,f);f+=2;u.huffmanFS=3&e;u.huffmanDS=e>>2&3;u.huffmanDT=e>>4&3;u.huffmanRefinementDW=e>>6&3;u.huffmanRefinementDH=e>>8&3;u.huffmanRefinementDX=e>>10&3;u.huffmanRefinementDY=e>>12&3;u.huffmanRefinementSizeSelector=!!(16384&e)}if(u.refinement&&!u.refinementTemplate){a=[];for(c=0;c<2;c++){a.push({x:(0,i.readInt8)(r,f),y:(0,i.readInt8)(r,f+1)});f+=2}u.refinementAt=a}u.numberOfSymbolInstances=(0,i.readUint32)(r,f);f+=4;s=[u,n.referredTo,r,f,o];break;case 16:const p={},g=r[f++];p.mmr=!!(1&g);p.template=g>>1&3;p.patternWidth=r[f++];p.patternHeight=r[f++];p.maxPatternIndex=(0,i.readUint32)(r,f);f+=4;s=[p,n.number,r,f,o];break;case 22:case 23:const m={};m.info=readRegionSegmentInformation(r,f);f+=h;const b=r[f++];m.mmr=!!(1&b);m.template=b>>1&3;m.enableSkip=!!(8&b);m.combinationOperator=b>>4&7;m.defaultPixelValue=b>>7&1;m.gridWidth=(0,i.readUint32)(r,f);f+=4;m.gridHeight=(0,i.readUint32)(r,f);f+=4;m.gridOffsetX=4294967295&(0,i.readUint32)(r,f);f+=4;m.gridOffsetY=4294967295&(0,i.readUint32)(r,f);f+=4;m.gridVectorX=(0,i.readUint16)(r,f);f+=2;m.gridVectorY=(0,i.readUint16)(r,f);f+=2;s=[m,n.referredTo,r,f,o];break;case 38:case 39:const y={};y.info=readRegionSegmentInformation(r,f);f+=h;const x=r[f++];y.mmr=!!(1&x);y.template=x>>1&3;y.prediction=!!(8&x);if(!y.mmr){l=0===y.template?4:1;a=[];for(c=0;c<l;c++){a.push({x:(0,i.readInt8)(r,f),y:(0,i.readInt8)(r,f+1)});f+=2}y.at=a}s=[y,r,f,o];break;case 48:const w={width:(0,i.readUint32)(r,f),height:(0,i.readUint32)(r,f+4),resolutionX:(0,i.readUint32)(r,f+8),resolutionY:(0,i.readUint32)(r,f+12)};4294967295===w.height&&delete w.height;const T=r[f+16];(0,i.readUint16)(r,f+17);w.lossless=!!(1&T);w.refinement=!!(2&T);w.defaultPixelValue=T>>2&1;w.combinationOperator=T>>3&3;w.requiresBuffer=!!(32&T);w.combinationOperatorOverride=!!(64&T);s=[w];break;case 49:case 50:case 51:case 62:break;case 53:s=[n.number,r,f,o];break;default:throw new Jbig2Error(`segment type ${n.typeName}(${n.type}) is not implemented`)}const u="on"+n.typeName;u in t&&t[u].apply(t,s)}function processSegments(e,t){for(let n=0,r=e.length;n<r;n++)processSegment(e[n],t)}class SimpleSegmentVisitor{onPageInformation(e){this.currentPageInfo=e;const t=e.width+7>>3,n=new Uint8ClampedArray(t*e.height);e.defaultPixelValue&&n.fill(255);this.buffer=n}drawBitmap(e,t){const n=this.currentPageInfo,r=e.width,i=e.height,o=n.width+7>>3,s=n.combinationOperatorOverride?e.combinationOperator:n.combinationOperator,a=this.buffer,c=128>>(7&e.x);let l,f,u,h,d=e.y*o+(e.x>>3);switch(s){case 0:for(l=0;l<i;l++){u=c;h=d;for(f=0;f<r;f++){t[l][f]&&(a[h]|=u);u>>=1;if(!u){u=128;h++}}d+=o}break;case 2:for(l=0;l<i;l++){u=c;h=d;for(f=0;f<r;f++){t[l][f]&&(a[h]^=u);u>>=1;if(!u){u=128;h++}}d+=o}break;default:throw new Jbig2Error(`operator ${s} is not supported`)}}onImmediateGenericRegion(e,t,n,r){const i=e.info,o=new DecodingContext(t,n,r),s=decodeBitmap(e.mmr,i.width,i.height,e.template,e.prediction,null,e.at,o);this.drawBitmap(i,s)}onImmediateLosslessGenericRegion(){this.onImmediateGenericRegion(...arguments)}onSymbolDictionary(e,t,n,r,o,s){let a,c;if(e.huffman){a=function getSymbolDictionaryHuffmanTables(e,t,n){let r,i,o,s,a=0;switch(e.huffmanDHSelector){case 0:case 1:r=getStandardTable(e.huffmanDHSelector+4);break;case 3:r=getCustomHuffmanTable(a,t,n);a++;break;default:throw new Jbig2Error("invalid Huffman DH selector")}switch(e.huffmanDWSelector){case 0:case 1:i=getStandardTable(e.huffmanDWSelector+2);break;case 3:i=getCustomHuffmanTable(a,t,n);a++;break;default:throw new Jbig2Error("invalid Huffman DW selector")}if(e.bitmapSizeSelector){o=getCustomHuffmanTable(a,t,n);a++}else o=getStandardTable(1);s=e.aggregationInstancesSelector?getCustomHuffmanTable(a,t,n):getStandardTable(1);return{tableDeltaHeight:r,tableDeltaWidth:i,tableBitmapSize:o,tableAggregateInstances:s}}(e,n,this.customTables);c=new Reader(r,o,s)}let l=this.symbols;l||(this.symbols=l={});const f=[];for(const e of n){const t=l[e];t&&f.push(...t)}const u=new DecodingContext(r,o,s);l[t]=function decodeSymbolDictionary(e,t,n,r,o,s,a,c,l,f,u,h){if(e&&t)throw new Jbig2Error("symbol refinement with Huffman is not supported");const d=[];let p=0,g=(0,i.log2)(n.length+r);const m=u.decoder,b=u.contextCache;let y,x;if(e){y=getStandardTable(1);x=[];g=Math.max(g,1)}for(;d.length<r;){p+=e?s.tableDeltaHeight.decode(h):decodeInteger(b,"IADH",m);let r=0,i=0;const o=e?x.length:0;for(;;){const o=e?s.tableDeltaWidth.decode(h):decodeInteger(b,"IADW",m);if(null===o)break;r+=o;i+=r;let y;if(t){const i=decodeInteger(b,"IAAI",m);if(i>1)y=decodeTextRegion(e,t,r,p,0,i,1,n.concat(d),g,0,0,1,0,s,l,f,u,0,h);else{const e=decodeIAID(b,m,g),t=decodeInteger(b,"IARDX",m),i=decodeInteger(b,"IARDY",m);y=decodeRefinement(r,p,l,e<n.length?n[e]:d[e-n.length],t,i,!1,f,u)}d.push(y)}else if(e)x.push(r);else{y=decodeBitmap(!1,r,p,a,!1,null,c,u);d.push(y)}}if(e&&!t){const e=s.tableBitmapSize.decode(h);h.byteAlign();let t;if(0===e)t=readUncompressedBitmap(h,i,p);else{const n=h.end,r=h.position+e;h.end=r;t=decodeMMRBitmap(h,i,p,!1);h.end=n;h.position=r}const n=x.length;if(o===n-1)d.push(t);else{let e,r,i,s,a,c=0;for(e=o;e<n;e++){s=x[e];i=c+s;a=[];for(r=0;r<p;r++)a.push(t[r].subarray(c,i));d.push(a);c=i}}}}const w=[],T=[];let S,C,P=!1;const v=n.length+r;for(;T.length<v;){let t=e?y.decode(h):decodeInteger(b,"IAEX",m);for(;t--;)T.push(P);P=!P}for(S=0,C=n.length;S<C;S++)T[S]&&w.push(n[S]);for(let e=0;e<r;S++,e++)T[S]&&w.push(d[e]);return w}(e.huffman,e.refinement,f,e.numberOfNewSymbols,e.numberOfExportedSymbols,a,e.template,e.at,e.refinementTemplate,e.refinementAt,u,c)}onImmediateTextRegion(e,t,n,r,o){const s=e.info;let a,c;const l=this.symbols,f=[];for(const e of t){const t=l[e];t&&f.push(...t)}const u=(0,i.log2)(f.length);if(e.huffman){c=new Reader(n,r,o);a=function getTextRegionHuffmanTables(e,t,n,r,i){const o=[];for(let e=0;e<=34;e++){const t=i.readBits(4);o.push(new HuffmanLine([e,t,0,0]))}const s=new H