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

Generic build of Mozilla's PDF.js library.

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d(t,e,n,r,i,o,s,a){if(t)return A(new O(a.data,a.start,a.end),e,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(t,e,n){var r,i,o,s,a,c,u,f=n.decoder,l=n.contextCache.getContexts("GB"),h=[];for(i=0;i<e;i++)for(a=h[i]=new Uint8Array(t),c=i<1?a:h[i-1],r=(u=i<2?a:h[i-2])[0]<<13|u[1]<<12|u[2]<<11|c[0]<<7|c[1]<<6|c[2]<<5|c[3]<<4,o=0;o<t;o++)a[o]=s=f.readBit(l,r),r=(31735&r)<<1|(o+3<t?u[o+3]<<11:0)|(o+4<t?c[o+4]<<4:0)|s;return h}(e,n,a);var c=!!o,f=u[r].concat(s);f.sort(function(t,e){return t.y-e.y||t.x-e.x});var h,d,p=f.length,m=new Int8Array(p),v=new Int8Array(p),g=[],y=0,b=0,w=0,x=0;for(d=0;d<p;d++)m[d]=f[d].x,v[d]=f[d].y,b=Math.min(b,f[d].x),w=Math.max(w,f[d].x),x=Math.min(x,f[d].y),d<p-1&&f[d].y===f[d+1].y&&f[d].x===f[d+1].x-1?y|=1<<p-1-d:g.push(d);var S=g.length,P=new Int8Array(S),T=new Int8Array(S),C=new Uint16Array(S);for(h=0;h<S;h++)d=g[h],P[h]=f[d].x,T[h]=f[d].y,C[h]=1<<p-1-d;for(var k,I,L,E,M,_=-b,D=-x,R=e-w,B=l[r],U=new Uint8Array(e),N=[],F=a.decoder,j=a.contextCache.getContexts("GB"),z=0,H=0,X=0;X<n;X++){if(i)if(z^=F.readBit(j,B)){N.push(U);continue}for(U=new Uint8Array(U),N.push(U),k=0;k<e;k++)if(c&&o[X][k])U[k]=0;else{if(k>=_&&k<R&&X>=D)for(H=H<<1&y,d=0;d<S;d++)I=X+T[d],L=k+P[d],(E=N[I][L])&&(H|=E=C[d]);else for(H=0,M=p-1,d=0;d<p;d++,M--)(L=k+m[d])>=0&&L<e&&(I=X+v[d])>=0&&(E=N[I][L])&&(H|=E<<M);var Y=F.readBit(j,H);U[k]=Y}}return N}function p(t,e,n,r,i,o,a,c,u){var l=f[n].coding;0===n&&(l=l.concat([c[0]]));var d,p=l.length,m=new Int32Array(p),v=new Int32Array(p);for(d=0;d<p;d++)m[d]=l[d].x,v[d]=l[d].y;var g=f[n].reference;0===n&&(g=g.concat([c[1]]));var y=g.length,b=new Int32Array(y),w=new Int32Array(y);for(d=0;d<y;d++)b[d]=g[d].x,w[d]=g[d].y;for(var x=r[0].length,S=r.length,P=h[n],T=[],C=u.decoder,k=u.contextCache.getContexts("GR"),I=0,O=0;O<e;O++){if(a)if(I^=C.readBit(k,P))throw new s("prediction is not supported");var L=new Uint8Array(t);T.push(L);for(var E=0;E<t;E++){var A,M,_=0;for(d=0;d<p;d++)A=O+v[d],M=E+m[d],A<0||M<0||M>=t?_<<=1:_=_<<1|T[A][M];for(d=0;d<y;d++)A=O+w[d]-o,M=E+b[d]-i,A<0||A>=S||M<0||M>=x?_<<=1:_=_<<1|r[A][M];var D=C.readBit(k,_);L[E]=D}}return T}function m(t,e,r,i,o,c,u,f,l,h,d,m,v,g,y,b,w,x,S){if(t&&e)throw new s("refinement with Huffman is not supported");var P,T,C=[];for(P=0;P<i;P++){if(T=new Uint8Array(r),o)for(var k=0;k<r;k++)T[k]=o;C.push(T)}var I=w.decoder,O=w.contextCache,L=t?-g.tableDeltaT.decode(S):-n(O,"IADT",I),E=0;for(P=0;P<c;){L+=t?g.tableDeltaT.decode(S):n(O,"IADT",I);for(var A=E+=t?g.tableFirstS.decode(S):n(O,"IAFS",I);;){var M=0;u>1&&(M=t?S.readBits(x):n(O,"IAIT",I));var _=u*L+M,D=t?g.symbolIDTable.decode(S):a(O,I,l),R=e&&(t?S.readBit():n(O,"IARI",I)),B=f[D],U=B[0].length,N=B.length;if(R){var F=n(O,"IARDW",I),j=n(O,"IARDH",I);B=p(U+=F,N+=j,y,B,(F>>1)+n(O,"IARDX",I),(j>>1)+n(O,"IARDY",I),!1,b,w)}var z,H,X,Y=_-(1&m?0:N-1),W=A-(2&m?U-1:0);if(h){for(z=0;z