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g=8*C;0!==f[1+g]||0!==f[2+g]||0!==f[3+g]||0!==f[4+g]||0!==f[5+g]||0!==f[6+g]||0!==f[7+g]?(u=c*f[0+g]+128>>8,h=c*f[4+g]+128>>8,b=f[2+g],v=f[6+g],m=l*(f[1+g]-f[7+g])+128>>8,k=l*(f[1+g]+f[7+g])+128>>8,p=f[3+g]<<4,d=f[5+g]<<4,w=u-h+1>>1,u=u+h+1>>1,h=w,w=b*i+v*s+128>>8,b=b*s-v*i+128>>8,v=w,w=m-d+1>>1,m=m+d+1>>1,d=w,w=k+p+1>>1,p=k-p+1>>1,k=w,w=u-v+1>>1,u=u+v+1>>1,v=w,w=h-b+1>>1,h=h+b+1>>1,b=w,w=m*t+k*a+2048>>12,m=m*a-k*t+2048>>12,k=w,w=p*o+d*r+2048>>12,p=p*r-d*o+2048>>12,d=w,f[0+g]=u+k,f[7+g]=u-k,f[1+g]=h+d,f[6+g]=h-d,f[2+g]=b+p,f[5+g]=b-p,f[3+g]=v+m,f[4+g]=v-m):(w=c*f[0+g]+512>>10,f[0+g]=w,f[1+g]=w,f[2+g]=w,f[3+g]=w,f[4+g]=w,f[5+g]=w,f[6+g]=w,f[7+g]=w)}for(C=0;C<8;++C){var 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m(e){return e<=0?0:e>=255?255:0|e}class p{}return Object.setPrototypeOf(p.prototype,{load:function(e){var r=function(e){this.parse(e),this.onload&&this.onload()}.bind(this);if(e.indexOf("data:")>-1){for(var n=e.indexOf("base64,")+7,o=atob(e.substring(n)),a=new Uint8Array(o.length),t=o.length-1;t>=0;t--)a[t]=o.charCodeAt(t);r(o)}else{var s=new XMLHttpRequest;s.open("GET",e,!0),s.responseType="arraybuffer",s.onload=function(){var e=new Uint8Array(s.response);r(e)}.bind(this),s.send(null)}},parse:function(r){function o(){var e=r[c]<<8|r[c+1];return c+=2,e}function a(){var e=o(),n=r.subarray(c,c+e-2);return c+=n.length,n}function t(e){for(var r=Math.ceil(e.samplesPerLine/8/e.maxH),n=Math.ceil(e.scanLines/8/e.maxV),o=0;o<e.components.length;o++){S=e.components[o];var a=Math.ceil(Math.ceil(e.samplesPerLine/8)*S.h/e.maxH),t=Math.ceil(Math.ceil(e.scanLines/8)*S.v/e.maxV),s=r*S.h,i=n*S.v*64*(s+1);S.blockData=new Int16Array(i),S.blocksPerLine=a,S.blocksPerColumn=t}e.mcusPerLine=r,e.mcusPerColumn=n}var s,i,c=0,l=(r.length,null),u=null,b=[],m=[],p=[],d=o();if(65496!=d)throw"SOI not found";for(d=o();65497!=d;){var k,w;switch(d){case 65504:case 65505:case 65506:case 65507:case 65508:case 65509:case 65510:case 65511:case 65512:case 65513:case 65514:case 65515:case 65516:case 65517:case 65518:case 65519:case 65534:var C=a();65504===d&&74===C[0]&&70===C[1]&&73===C[2]&&70===C[3]&&0===C[4]&&(l={version:{major:C[5],minor:C[6]},densityUnits:C[7],xDensity:C[8]<<8|C[9],yDensity:C[10]<<8|C[11],thumbWidth:C[12],thumbHeight:C[13],thumbData:C.subarray(14,14+3*C[12]*C[13])}),65518===d&&65===C[0]&&100===C[1]&&111===C[2]&&98===C[3]&&101===C[4]&&0===C[5]&&(u={version:C[6],flags0:C[7]<<8|C[8],flags1:C[9]<<8|C[10],transformCode:C[11]});break;case 65499:for(var P=o()+c-2;c<P;){var g=r[c++],y=new Int32Array(64);if(g>>4==0)for(k=0;k<64;k++)y[e[k]]=r[c++];else{if(g>>4!=1)throw"DQT: invalid table spec";for(k=0;k<64;k++)y[e[k]]=o()}b[15&g]=y}break;case 65472:case 65473:case 65474:if(s)throw"Only single frame JPEGs supported";o(),(s={}).extended=65473===d,s.progressive=65474===d,s.precision=r[c++],s.scanLines=o(),s.samplesPerLine=o(),s.components=[],s.componentIds={};var D,L=r[c++],x=0,T=0;for(J=0;J<L;J++){D=r[c];var A=r[c+1]>>4,U=15&r[c+1];x<A&&(x=A),T<U&&(T=U);var I=r[c+2];w=s.components.push({h:A,v:U,quantizationTable:b[I],quantizationTableId:I,bitConversion:255/((1<<s.precision)-1)}),s.componentIds[D]=w-1,c+=3}s.maxH=x,s.maxV=T,t(s);break;case 65476:var q=o();for(J=2;J<q;){var G=r[c++],M=new Uint8Array(16),z=0;for(k=0;k<16;k++,c++)z+=M[k]=r[c];var H=new Uint8Array(z);for(k=0;k<z;k++,c++)H[k]=r[c];J+=17+z,(G>>4==0?p:m)[15&G]=f(M,H)}break;case 65501:o(),i=o();break;case 65498:o();var O=r[c++],R=[];for(J=0;J<O;J++){var V=s.componentIds[r[c++]];S=s.components[V];var Y=r[c++];S.huffmanTableDC=p[Y>>4],S.huffmanTableAC=m[15&Y],R.push(S)}var j=r[c++],B=r[c++],X=r[c++],E=h(r,c,s,R,i,j,B,X>>4,15&X);c+=E;break;case 65535:255!==r[c]&&c--;break;default:if(255==r[c-3]&&r[c-2]>=192&&r[c-2]<=254){c-=3;break}throw"unknown JPEG marker "+d.toString(16)}d=o()}switch(this.width=s.samplesPerLine,this.height=s.scanLines,this.jfif=l,this.adobe=u,this.components=[],s.components.length){case 1:this.colorspace=n.Grayscale;break;case 3:this.adobe?this.colorspace=n.AdobeRGB:this.colorspace=n.RGB;break;case 4:this.colorspace=n.CYMK;break;default:this.colorspace=n.Unknown}for(var J=0;J<s.components.length;J++){var S;(S=s.components[J]).quantizationTable||null===S.quantizationTableId||(S.quantizationTable=b[S.quantizationTableId]),this.components.push({output:v(0,S),scaleX:S.h/s.maxH,scaleY:S.v/s.maxV,blocksPerLine:S.blocksPerLine,blocksPerColumn:S.blocksPerColumn,bitConversion:S.bitConversion})}},getData16:function(e,r){if(1!==this.components.length)throw"Unsupported color mode";var n,o,a,t,s,i,c=this.width/e,l=this.height/r,f=0,h=this.components.length,b=new Uint16Array(e*r*h),v=new Uint16Array((this.components[0].blocksPerLine<<3)*this.components[0].blocksPerColumn*8);for(i=0;i<h;i++){for(var m,p,d,k=(n=this.components[i]).blocksPerLine,w=n.blocksPerColumn,C=k<<3,P=0,g=0;g<w;g++)for(var y=g<<3,D=0;D<k;D++){var L=u(n,g,D),x=(f=0,D<<3);for(m=0;m<8;m++)for(P=(y+m)*C,p=0;p<8;p++)v[P+x+p]=n.output[L+f++]}for(o=n.scaleX*c,a=n.scaleY*l,f=i,s=0;s<r;s++)for(t=0;t<e;t++)d=(0|s*a)*C+(0|t*o),b[f]=v[d],f+=h}return b},getData:function(e,r){var n,o,a,t,s,i,c,l,f,h,b,v,p,d,k,w=this.width/e,C=this.height/r,P=0,g=this.components.length,y=e*r*g,D=new Uint8Array(y),L=new Uint8Array((this.components[0].blocksPerLine<<3)*this.components[0].blocksPerColumn*8);for(i=0;i<g;i++){for(var x,T,A,U=(n=this.components[i]).blocksPerLine,I=n.blocksPerColumn,q=U<<3,G=0,M=0;M<I;M++)for(var z=M<<3,H=0;H<U;H++){var O=u(n,M,H),R=(P=0,H<<3);for(x=0;x<8;x++)for(G=(z+x)*q,T=0;T<8;T++)L[G+R+T]=n.output[O+P++]*n.bitConversion}for(o=n.scaleX*w,a=n.scaleY*C,P=i,s=0;s<r;s++)for(t=0;t<e;t++)A=(0|s*a)*q+(0|t*o),D[P]=L[A],P+=g}switch(g){case 1:case 2:break;case 3:if(k=!0,this.adobe&&this.adobe.transformCode?k=!0:void 0!==this.colorTransform&&(k=!!this.colorTransform),k)for(i=0;i<y;i+=g)c=D[i],l=D[i+1],v=m(c-179.456+1.402*(f=D[i+2])),p=m(c+135.459-.344*l-.714*f),d=m(c-226.816+1.772*l),D[i]=v,D[i+1]=p,D[i+2]=d;break;case 4:if(!this.adobe)throw"Unsupported color mode (4 components)";if(k=!1,this.adobe&&this.adobe.transformCode?k=!0:void 0!==this.colorTransform&&(k=!!this.colorTransform),k)for(i=0;i<y;i+=g)c=D[i],l=D[i+1],h=m(434.456-c-1.402*(f=D[i+2])),b=m(119.541-c+.344*l+.714*f),c=m(481.816-c-1.772*l),D[i]=h,D[i+1]=b,D[i+2]=c;break;default:throw"Unsupported color mode"}return D}}),p}();e.exports={JpegImage:o}}}]);