(function(b){var a;a=(function(){var m,j,f,k,g,l,i,c;d.load=function(n,e,q){var o,p=this;if(typeof e==="function"){q=e}o=new XMLHttpRequest;o.open("GET",n,true);o.responseType="arraybuffer";o.onload=function(){var r,s;r=new Uint8Array(o.response||o.mozResponseArrayBuffer);s=new d(r);if(typeof(e!=null?e.getContext:void 0)==="function"){s.render(e)}return typeof q==="function"?q(s):void 0};return o.send(null)};k=0;f=1;g=2;j=0;m=1;function d(t){var o,e,q,A,v,n,u,w,z,y,x,B,r,p,s;this.data=t;this.pos=8;this.palette=[];this.imgData=[];this.transparency={};this.animation=null;this.text={};n=null;while(true){o=this.readUInt32();y=((function(){var D,C;C=[];for(u=D=0;D<4;u=++D){C.push(String.fromCharCode(this.data[this.pos++]))}return C}).call(this)).join("");switch(y){case"IHDR":this.width=this.readUInt32();this.height=this.readUInt32();this.bits=this.data[this.pos++];this.colorType=this.data[this.pos++];this.compressionMethod=this.data[this.pos++];this.filterMethod=this.data[this.pos++];this.interlaceMethod=this.data[this.pos++];break;case"acTL":this.animation={numFrames:this.readUInt32(),numPlays:this.readUInt32()||Infinity,frames:[]};break;case"PLTE":this.palette=this.read(o);break;case"fcTL":if(n){this.animation.frames.push(n)}this.pos+=4;n={width:this.readUInt32(),height:this.readUInt32(),xOffset:this.readUInt32(),yOffset:this.readUInt32()};v=this.readUInt16();A=this.readUInt16()||100;n.delay=1000*v/A;n.disposeOp=this.data[this.pos++];n.blendOp=this.data[this.pos++];n.data=[];break;case"IDAT":case"fdAT":if(y==="fdAT"){this.pos+=4;o-=4}t=(n!=null?n.data:void 0)||this.imgData;for(u=r=0;0<=o?r<o:r>o;u=0<=o?++r:--r){t.push(this.data[this.pos++])}break;case"tRNS":this.transparency={};switch(this.colorType){case 3:q=this.palette.length/3;this.transparency.indexed=this.read(o);if(this.transparency.indexed.length>q){throw new Error("More transparent colors than palette size")}x=q-this.transparency.indexed.length;if(x>0){for(u=p=0;0<=x?p<x:p>x;u=0<=x?++p:--p){this.transparency.indexed.push(255)}}break;case 0:this.transparency.grayscale=this.read(o)[0];break;case 2:this.transparency.rgb=this.read(o)}break;case"tEXt":B=this.read(o);w=B.indexOf(0);z=String.fromCharCode.apply(String,B.slice(0,w));this.text[z]=String.fromCharCode.apply(String,B.slice(w+1));break;case"IEND":if(n){this.animation.frames.push(n)}this.colors=(function(){switch(this.colorType){case 0:case 3:case 4:return 1;case 2:case 6:return 3}}).call(this);this.hasAlphaChannel=(s=this.colorType)===4||s===6;e=this.colors+(this.hasAlphaChannel?1:0);this.pixelBitlength=this.bits*e;this.colorSpace=(function(){switch(this.colors){case 1:return"DeviceGray";case 3:return"DeviceRGB"}}).call(this);this.imgData=new Uint8Array(this.imgData);return;default:this.pos+=o}this.pos+=4;if(this.pos>this.data.length){throw new Error("Incomplete or corrupt PNG file")}}return}d.prototype.read=function(n){var o,p,e;e=[];for(o=p=0;0<=n?p<n:p>n;o=0<=n?++p:--p){e.push(this.data[this.pos++])}return e};d.prototype.readUInt32=function(){var p,o,n,e;p=this.data[this.pos++]<<24;o=this.data[this.pos++]<<16;n=this.data[this.pos++]<<8;e=this.data[this.pos++];return p|o|n|e};d.prototype.readUInt16=function(){var n,e;n=this.data[this.pos++]<<8;e=this.data[this.pos++];return n|e};d.prototype.decodePixels=function(K){var F,J,y,G,x,w,D,s,E,q,n,B,C,z,A,I,H,u,v,t,r,o,e;if(K==null){K=this.imgData}if(K.length===0){return new Uint8Array(0)}K=new FlateStream(K);K=K.getBytes();B=this.pixelBitlength/8;I=B*this.width;C=new Uint8Array(I*this.height);w=K.length;A=0;z=0;J=0;while(z<w){switch(K[z++]){case 0:for(G=v=0;v<I;G=v+=1){C[J++]=K[z++]}break;case 1:for(G=t=0;t<I;G=t+=1){F=K[z++];x=G<B?0:C[J-B];C[J++]=(F+x)%256}break;case 2:for(G=r=0;r<I;G=r+=1){F=K[z++];y=(G-(G%B))/B;H=A&&C[(A-1)*I+y*B+(G%B)];C[J++]=(H+F)%256}break;case 3:for(G=o=0;o<I;G=o+=1){F=K[z++];y=(G-(G%B))/B;x=G<B?0:C[J-B];H=A&&C[(A-1)*I+y*B+(G%B)];C[J++]=(F+Math.floor((x+H)/2))%256}break;case 4:for(G=e=0;e<I;G=e+=1){F=K[z++];y=(G-(G%B))/B;x=G<B?0:C[J-B];if(A===0){H=u=0}else{H=C[(A-1)*I+y*B+(G%B)];u=y&&C[(A-1)*I+(y-1)*B+(G%B)]}D=x+H-u;s=Math.abs(D-x);q=Math.abs(D-H);n=Math.abs(D-u);if(s<=q&&s<=n){E=x}else{if(q<=n){E=H}else{E=u}}C[J++]=(F+E)%256}break;default:throw new Error("Invalid filter algorithm: "+K[z-1])}A++}return C};d.prototype.decodePalette=function(){var u,s,e,n,v,t,o,q,r,p;n=this.palette;o=this.transparency.indexed||[];t=new Uint8Array((o.length||0)+n.length);v=0;e=n.length;u=0;for(s=q=0,r=n.length;q<r;s=q+=3){t[v++]=n[s];t[v++]=n[s+1];t[v++]=n[s+2];t[v++]=(p=o[u++])!=null?p:255}return t};d.prototype.copyToImageData=function(e,q){var s,n,w,x,y,t,r,o,p,z,u;n=this.colors;p=null;s=this.hasAlphaChannel;if(this.palette.length){p=(u=this._decodedPalette)!=null?u:this._decodedPalette=this.decodePalette();n=4;s=true}w=e.data||e;o=w.length;y=p||q;x=t=0;if(n===1){while(x<o){r=p?q[x/4]*4:t;z=y[r++];w[x++]=z;w[x++]=z;w[x++]=z;w[x++]=s?y[r++]:255;t=r}}else{while(x<o){r=p?q[x/4]*4:t;w[x++]=y[r++];w[x++]=y[r++];w[x++]=y[r++];w[x++]=s?y[r++]:255;t=r}}};
d.prototype.decode=function(){var e;e=new Uint8Array(this.width*this.height*4);this.copyToImageData(e,this.decodePixels());return e};try{i=b.document.createElement("canvas");c=i.getContext("2d")}catch(h){return -1}l=function(n){var e;c.width=n.width;c.height=n.height;c.clearRect(0,0,n.width,n.height);c.putImageData(n,0,0);e=new Image;e.src=i.toDataURL();return e};d.prototype.decodeFrames=function(u){var n,s,e,o,q,t,r,p;if(!this.animation){return}r=this.animation.frames;p=[];for(s=q=0,t=r.length;q<t;s=++q){n=r[s];e=u.createImageData(n.width,n.height);o=this.decodePixels(new Uint8Array(n.data));this.copyToImageData(e,o);n.imageData=e;p.push(n.image=l(e))}return p};d.prototype.renderFrame=function(e,o){var q,p,n;p=this.animation.frames;q=p[o];n=p[o-1];if(o===0){e.clearRect(0,0,this.width,this.height)}if((n!=null?n.disposeOp:void 0)===f){e.clearRect(n.xOffset,n.yOffset,n.width,n.height)}else{if((n!=null?n.disposeOp:void 0)===g){e.putImageData(n.imageData,n.xOffset,n.yOffset)}}if(q.blendOp===j){e.clearRect(q.xOffset,q.yOffset,q.width,q.height)}return e.drawImage(q.image,q.xOffset,q.yOffset)};d.prototype.animate=function(o){var n,s,r,q,e,p,t=this;s=0;p=this.animation,q=p.numFrames,r=p.frames,e=p.numPlays;return(n=function(){var u,v;u=s++%q;v=r[u];t.renderFrame(o,u);if(q>1&&s/q<e){return t.animation._timeout=setTimeout(n,v.delay)}})()};d.prototype.stopAnimation=function(){var e;return clearTimeout((e=this.animation)!=null?e._timeout:void 0)};d.prototype.render=function(n){var e,o;if(n._png){n._png.stopAnimation()}n._png=this;n.width=this.width;n.height=this.height;e=n.getContext("2d");if(this.animation){this.decodeFrames(e);return this.animate(e)}else{o=e.createImageData(this.width,this.height);this.copyToImageData(o,this.decodePixels());return e.putImageData(o,0,0)}};return d})();b.PNG=a})(typeof window!=="undefined"&&window||this);