VanillaQR.min.js

function VanillaQR(r){var e=this;r="object"==typeof r?r:{},e.revision=3,e.imageTypes={bmp:"image/bmp",gif:"image/gif",jpeg:"image/jpeg",jpg:"image/jpg",png:"image/png","svg+xml":"image/svg+xml",tiff:"image/tiff",webp:"image/webp","x-icon":"image/x-icon"},e.toTable=r.toTable,e.domElement=e.toTable?document.createElement("div"):document.createElement("canvas"),e.url=r.url||"",e.size=r.size||280,e.qrc=!1,e.colorLight=r.colorLight||"#fff",e.colorDark=r.colorDark||"#000",e.ecclevel=r.ecclevel||1,e.noBorder=r.noBorder,e.borderSize=r.borderSize||4;var o,a,n,t,i,l,f,c=[],d=[],s=[],v=[],g=[],m=[],u=function(r,e){var o;r>e&&(o=r,r=e,e=o),o=e,o*=e,o+=e,o>>=1,o+=r,v[o]=1},h=function(r,e){var o;for(s[r+n*e]=1,o=-2;o<2;o++)s[r+o+n*(e-2)]=1,s[r-2+n*(e+o+1)]=1,s[r+2+n*(e+o)]=1,s[r+o+1+n*(e+2)]=1;for(o=0;o<2;o++)u(r-1,e+o),u(r+1,e-o),u(r-o,e-1),u(r+o,e+1)},p=function(r){for(;r>=255;)r-=255,r=(r>>8)+(255&r);return r},b=function(r,e,o,a){var n,t,i,l=VanillaQR.gexp,f=VanillaQR.glog;for(n=0;n<a;n++)c[o+n]=0;for(n=0;n<e;n++){if(i=f[c[r+n]^c[o]],255!=i)for(t=1;t<a;t++)c[o+t-1]=c[o+t]^l[p(i+m[a-t])];else for(t=o;t<o+a;t++)c[t]=c[t+1];c[o+a-1]=255==i?0:l[p(i+m[0])]}},R=function(r,e){var o;return r>e&&(o=r,r=e,e=o),o=e,o+=e*e,o>>=1,o+=r,v[o]},Q=function(r){var e,o,a,t;switch(r){case 0:for(o=0;o<n;o++)for(e=0;e<n;e++)e+o&1||R(e,o)||(s[e+o*n]^=1);break;case 1:for(o=0;o<n;o++)for(e=0;e<n;e++)1&o||R(e,o)||(s[e+o*n]^=1);break;case 2:for(o=0;o<n;o++)for(a=0,e=0;e<n;e++,a++)3==a&&(a=0),a||R(e,o)||(s[e+o*n]^=1);break;case 3:for(t=0,o=0;o<n;o++,t++)for(3==t&&(t=0),a=t,e=0;e<n;e++,a++)3==a&&(a=0),a||R(e,o)||(s[e+o*n]^=1);break;case 4:for(o=0;o<n;o++)for(a=0,t=o>>1&1,e=0;e<n;e++,a++)3==a&&(a=0,t=!t),t||R(e,o)||(s[e+o*n]^=1);break;case 5:for(t=0,o=0;o<n;o++,t++)for(3==t&&(t=0),a=0,e=0;e<n;e++,a++)3==a&&(a=0),(e&o&1)+!(!a|!t)||R(e,o)||(s[e+o*n]^=1);break;case 6:for(t=0,o=0;o<n;o++,t++)for(3==t&&(t=0),a=0,e=0;e<n;e++,a++)3==a&&(a=0),(e&o&1)+(a&&a==t)&1||R(e,o)||(s[e+o*n]^=1);break;case 7:for(t=0,o=0;o<n;o++,t++)for(3==t&&(t=0),a=0,e=0;e<n;e++,a++)3==a&&(a=0),(a&&a==t)+(e+o&1)&1||R(e,o)||(s[e+o*n]^=1)}},V=function(r){var e,o=0;for(e=0;e<=r;e++)g[e]>=5&&(o+=VanillaQR.N1+g[e]-5);for(e=3;e<r-1;e+=2)g[e-2]==g[e+2]&&g[e+2]==g[e-1]&&g[e-1]==g[e+1]&&3*g[e-1]==g[e]&&(0==g[e-3]||e+3>r||3*g[e-3]>=4*g[e]||3*g[e+3]>=4*g[e])&&(o+=VanillaQR.N3);return o},k=function(){var r,e,o,a,t,i=0,l=0;for(e=0;e<n-1;e++)for(r=0;r<n-1;r++)(s[r+n*e]&&s[r+1+n*e]&&s[r+n*(e+1)]&&s[r+1+n*(e+1)]||!(s[r+n*e]||s[r+1+n*e]||s[r+n*(e+1)]||s[r+1+n*(e+1)]))&&(i+=VanillaQR.N2);for(e=0;e<n;e++){for(g[0]=0,o=a=r=0;r<n;r++)(t=s[r+n*e])==a?g[o]++:g[++o]=1,a=t,l+=a?1:-1;i+=V(o)}l<0&&(l=-l);var f=l,c=0;for(f+=f<<2,f<<=1;f>n*n;)f-=n*n,c++;for(i+=c*VanillaQR.N4,r=0;r<n;r++){for(g[0]=0,o=a=e=0;e<n;e++)(t=s[r+n*e])==a?g[o]++:g[++o]=1,a=t;i+=V(o)}return i};e.genframe=function(r){var e,g,V,x,C,w,E,N,T=VanillaQR.eccblocks,y=VanillaQR.gexp,z=VanillaQR.glog;x=r.length,a=0;do if(a++,V=4*(o-1)+16*(a-1),t=T[V++],i=T[V++],l=T[V++],f=T[V],V=l*(t+i)+i-3+(a<=9),x<=V)break;while(a<40);for(n=17+4*a,C=l+(l+f)*(t+i)+i,x=0;x<C;x++)d[x]=0;for(c=r.slice(0),x=0;x<n*n;x++)s[x]=0;for(x=0;x<(n*(n+1)+1)/2;x++)v[x]=0;for(x=0;x<3;x++){for(V=0,g=0,1==x&&(V=n-7),2==x&&(g=n-7),s[g+3+n*(V+3)]=1,e=0;e<6;e++)s[g+e+n*V]=1,s[g+n*(V+e+1)]=1,s[g+6+n*(V+e)]=1,s[g+e+1+n*(V+6)]=1;for(e=1;e<5;e++)u(g+e,V+1),u(g+1,V+e+1),u(g+5,V+e),u(g+e+1,V+5);for(e=2;e<4;e++)s[g+e+n*(V+2)]=1,s[g+2+n*(V+e+1)]=1,s[g+4+n*(V+e)]=1,s[g+e+1+n*(V+4)]=1}if(a>1)for(x=VanillaQR.adelta[a],g=n-7;;){for(e=n-7;e>x-3&&(h(e,g),!(e<x));)e-=x;if(g<=x+9)break;g-=x,h(6,g),h(g,6)}for(s[8+n*(n-8)]=1,g=0;g<7;g++)u(7,g),u(n-8,g),u(7,g+n-7);for(e=0;e<8;e++)u(e,7),u(e+n-8,7),u(e,n-8);for(e=0;e<9;e++)u(e,8);for(e=0;e<8;e++)u(e+n-8,8),u(8,e);for(g=0;g<7;g++)u(8,g+n-7);for(e=0;e<n-14;e++)1&e?(u(8+e,6),u(6,8+e)):(s[8+e+6*n]=1,s[6+n*(8+e)]=1);if(a>6)for(x=VanillaQR.vpat[a-7],V=17,e=0;e<6;e++)for(g=0;g<3;g++,V--)1&(V>11?a>>V-12:x>>V)?(s[5-e+n*(2-g+n-11)]=1,s[2-g+n-11+n*(5-e)]=1):(u(5-e,2-g+n-11),u(2-g+n-11,5-e));for(g=0;g<n;g++)for(e=0;e<=g;e++)s[e+n*g]&&u(e,g);for(C=c.length,w=0;w<C;w++)d[w]=c.charCodeAt(w);if(c=d.slice(0),e=l*(t+i)+i,C>=e-2&&(C=e-2,a>9&&C--),w=C,a>9){for(c[w+2]=0,c[w+3]=0;w--;)x=c[w],c[w+3]|=255&x<<4,c[w+2]=x>>4;c[2]|=255&C<<4,c[1]=C>>4,c[0]=64|C>>12}else{for(c[w+1]=0,c[w+2]=0;w--;)x=c[w],c[w+2]|=255&x<<4,c[w+1]=x>>4;c[1]|=255&C<<4,c[0]=64|C>>4}for(w=C+3-(a<10);w<e;)c[w++]=236,c[w++]=17;for(m[0]=1,w=0;w<f;w++){for(m[w+1]=1,E=w;E>0;E--)m[E]=m[E]?m[E-1]^y[p(z[m[E]]+w)]:m[E-1];m[0]=y[p(z[m[0]]+w)]}for(w=0;w<=f;w++)m[w]=z[m[w]];for(V=e,g=0,w=0;w<t;w++)b(g,l,V,f),g+=l,V+=f;for(w=0;w<i;w++)b(g,l+1,V,f),g+=l+1,V+=f;for(g=0,w=0;w<l;w++){for(E=0;E<t;E++)d[g++]=c[w+E*l];for(E=0;E<i;E++)d[g++]=c[t*l+w+E*(l+1)]}for(E=0;E<i;E++)d[g++]=c[t*l+w+E*(l+1)];for(w=0;w<f;w++)for(E=0;E<t+i;E++)d[g++]=c[e+w+E*f];for(c=d,e=g=n-1,V=C=1,N=(l+f)*(t+i)+i,w=0;w<N;w++)for(x=c[w],E=0;E<8;E++,x<<=1){128&x&&(s[e+n*g]=1);do C?e--:(e++,V?0!=g?g--:(e-=2,V=!V,6==e&&(e--,g=9)):g!=n-1?g++:(e-=2,V=!V,6==e&&(e--,g-=8))),C=!C;while(R(e,g))}for(c=s.slice(0),x=0,g=3e4,V=0;V<8&&(Q(V),e=k(),e<g&&(g=e,x=V),7!=x);V++)s=c.slice(0);for(x!=V&&Q(x),g=VanillaQR.fmtword[x+(o-1<<3)],V=0;V<8;V++,g>>=1)1&g&&(s[n-1-V+8*n]=1,V<6?s[8+n*V]=1:s[8+n*(V+1)]=1);for(V=0;V<7;V++,g>>=1)1&g&&(s[8+n*(n-7+V)]=1,V?s[6-V+8*n]=1:s[7+8*n]=1);return s},e.init=function(){o=e.ecclevel;var r=e.genframe(e.url);e.toTable?e.tableWrite(r,n):e.canvasWrite(r,n)},e.init()}VanillaQR.prototype={canvasWrite:function(r,e){var o=this;if(!o.qrc&&(o.qrc=o.getContext(o.domElement),!o.qrc))return o.toTable=!0,o.domElement=document.createElement("div"),void o.tableWrite(r,e);var a=o.size,n=o.qrc;n.lineWidth=1;var t=a;t/=e+10,t=Math.round(t-.5);var i=4;o.noBorder?(n.canvas.width=n.canvas.height=t*e,i=0):n.canvas.width=n.canvas.height=a,n.clearRect(0,0,a,a),n.fillStyle=o.colorLight,n.fillRect(0,0,t*(e+8),t*(e+8)),n.fillStyle=o.colorDark;for(var l=0;l<e;l++)for(var f=0;f<e;f++)r[f*e+l]&&n.fillRect(t*(i+l),t*(i+f),t,t)},tableWrite:function(r,e){var o=this,a="border:0;border-collapse:collapse;",n=Math.round(this.size/e-3.5)+"px",t=e+(o.noBorder?0:2*o.borderSize),i=o.borderSize,l="width:"+n+";height:"+n+";",f=o.colorLight,c=o.colorDark,d=document.createElement("table");d.style.cssText=a;for(var s=document.createElement("tr"),v=document.createElement("td"),g=function(){return v.cloneNode()},m=function(){var r=g();return r.style.cssText=l+"background:"+c,r},u=function(){var r=g();return r.style.cssText=l+"background:"+f,r},h=function(r){for(var e=r.firstChild,a=0;a<o.borderSize;a++){for(var n=s.cloneNode(),i=0;i<t;i++){var l=u();n.appendChild(l)}r.appendChild(n),r.insertBefore(n.cloneNode(!0),e)}},p=function(r){for(var e=r.firstChild,o=0;o<i;o++)r.insertBefore(u(),e),r.appendChild(u())},b=0;b<e;b++){var R=s.cloneNode();d.appendChild(R);for(var Q=0;Q<e;Q++)if(1===r[b*e+Q]){var V=m();R.appendChild(V)}else{var k=u();R.appendChild(k)}o.noBorder||p(R)}o.noBorder||h(d),o.domElement.innerHTML="",o.domElement.appendChild(d)},getContext:function(r){return r.getContext&&r.getContext("2d")?r.getContext("2d"):(console.log("Browser does not have 2d Canvas support"),!1)},toImage:function(r){if(this.qrc){var e=this.imageTypes[r];if(!e)throw new Error(r+" is not a valid image type ");var o=new Image;return o.src=this.domElement.toDataURL(e),o}}},VanillaQR.adelta=[0,11,15,19,23,27,31,16,18,20,22,24,26,28,20,22,24,24,26,28,28,22,24,24,26,26,28,28,24,24,26,26,26,28,28,24,26,26,26,28,28],VanillaQR.vpat=[3220,1468,2713,1235,3062,1890,2119,1549,2344,2936,1117,2583,1330,2470,1667,2249,2028,3780,481,4011,142,3098,831,3445,592,2517,1776,2234,1951,2827,1070,2660,1345,3177],VanillaQR.fmtword=[30660,29427,32170,30877,26159,25368,27713,26998,21522,20773,24188,23371,17913,16590,20375,19104,13663,12392,16177,14854,9396,8579,11994,11245,5769,5054,7399,6608,1890,597,3340,2107],VanillaQR.eccblocks=[1,0,19,7,1,0,16,10,1,0,13,13,1,0,9,17,1,0,34,10,1,0,28,16,1,0,22,22,1,0,16,28,1,0,55,15,1,0,44,26,2,0,17,18,2,0,13,22,1,0,80,20,2,0,32,18,2,0,24,26,4,0,9,16,1,0,108,26,2,0,43,24,2,2,15,18,2,2,11,22,2,0,68,18,4,0,27,16,4,0,19,24,4,0,15,28,2,0,78,20,4,0,31,18,2,4,14,18,4,1,13,26,2,0,97,24,2,2,38,22,4,2,18,22,4,2,14,26,2,0,116,30,3,2,36,22,4,4,16,20,4,4,12,24,2,2,68,18,4,1,43,26,6,2,19,24,6,2,15,28,4,0,81,20,1,4,50,30,4,4,22,28,3,8,12,24,2,2,92,24,6,2,36,22,4,6,20,26,7,4,14,28,4,0,107,26,8,1,37,22,8,4,20,24,12,4,11,22,3,1,115,30,4,5,40,24,11,5,16,20,11,5,12,24,5,1,87,22,5,5,41,24,5,7,24,30,11,7,12,24,5,1,98,24,7,3,45,28,15,2,19,24,3,13,15,30,1,5,107,28,10,1,46,28,1,15,22,28,2,17,14,28,5,1,120,30,9,4,43,26,17,1,22,28,2,19,14,28,3,4,113,28,3,11,44,26,17,4,21,26,9,16,13,26,3,5,107,28,3,13,41,26,15,5,24,30,15,10,15,28,4,4,116,28,17,0,42,26,17,6,22,28,19,6,16,30,2,7,111,28,17,0,46,28,7,16,24,30,34,0,13,24,4,5,121,30,4,14,47,28,11,14,24,30,16,14,15,30,6,4,117,30,6,14,45,28,11,16,24,30,30,2,16,30,8,4,106,26,8,13,47,28,7,22,24,30,22,13,15,30,10,2,114,28,19,4,46,28,28,6,22,28,33,4,16,30,8,4,122,30,22,3,45,28,8,26,23,30,12,28,15,30,3,10,117,30,3,23,45,28,4,31,24,30,11,31,15,30,7,7,116,30,21,7,45,28,1,37,23,30,19,26,15,30,5,10,115,30,19,10,47,28,15,25,24,30,23,25,15,30,13,3,115,30,2,29,46,28,42,1,24,30,23,28,15,30,17,0,115,30,10,23,46,28,10,35,24,30,19,35,15,30,17,1,115,30,14,21,46,28,29,19,24,30,11,46,15,30,13,6,115,30,14,23,46,28,44,7,24,30,59,1,16,30,12,7,121,30,12,26,47,28,39,14,24,30,22,41,15,30,6,14,121,30,6,34,47,28,46,10,24,30,2,64,15,30,17,4,122,30,29,14,46,28,49,10,24,30,24,46,15,30,4,18,122,30,13,32,46,28,48,14,24,30,42,32,15,30,20,4,117,30,40,7,47,28,43,22,24,30,10,67,15,30,19,6,118,30,18,31,47,28,34,34,24,30,20,61,15,30],VanillaQR.glog=[255,0,1,25,2,50,26,198,3,223,51,238,27,104,199,75,4,100,224,14,52,141,239,129,28,193,105,248,200,8,76,113,5,138,101,47,225,36,15,33,53,147,142,218,240,18,130,69,29,181,194,125,106,39,249,185,201,154,9,120,77,228,114,166,6,191,139,98,102,221,48,253,226,152,37,179,16,145,34,136,54,208,148,206,143,150,219,189,241,210,19,92,131,56,70,64,30,66,182,163,195,72,126,110,107,58,40,84,250,133,186,61,202,94,155,159,10,21,121,43,78,212,229,172,115,243,167,87,7,112,192,247,140,128,99,13,103,74,222,237,49,197,254,24,227,165,153,119,38,184,180,124,17,68,146,217,35,32,137,46,55,63,209,91,149,188,207,205,144,135,151,178,220,252,190,97,242,86,211,171,20,42,93,158,132,60,57,83,71,109,65,162,31,45,67,216,183,123,164,118,196,23,73,236,127,12,111,246,108,161,59,82,41,157,85,170,251,96,134,177,187,204,62,90,203,89,95,176,156,169,160,81,11,245,22,235,122,117,44,215,79,174,213,233,230,231,173,232,116,214,244,234,168,80,88,175],VanillaQR.gexp=[1,2,4,8,16,32,64,128,29,58,116,232,205,135,19,38,76,152,45,90,180,117,234,201,143,3,6,12,24,48,96,192,157,39,78,156,37,74,148,53,106,212,181,119,238,193,159,35,70,140,5,10,20,40,80,160,93,186,105,210,185,111,222,161,95,190,97,194,153,47,94,188,101,202,137,15,30,60,120,240,253,231,211,187,107,214,177,127,254,225,223,163,91,182,113,226,217,175,67,134,17,34,68,136,13,26,52,104,208,189,103,206,129,31,62,124,248,237,199,147,59,118,236,197,151,51,102,204,133,23,46,92,184,109,218,169,79,158,33,66,132,21,42,84,168,77,154,41,82,164,85,170,73,146,57,114,228,213,183,115,230,209,191,99,198,145,63,126,252,229,215,179,123,246,241,255,227,219,171,75,150,49,98,196,149,55,110,220,165,87,174,65,130,25,50,100,200,141,7,14,28,56,112,224,221,167,83,166,81,162,89,178,121,242,249,239,195,155,43,86,172,69,138,9,18,36,72,144,61,122,244,245,247,243,251,235,203,139,11,22,44,88,176,125,250,233,207,131,27,54,108,216,173,71,142,0],VanillaQR.N1=3,VanillaQR.N2=3,VanillaQR.N3=40,VanillaQR.N4=10;