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jellyfin-web/dashboard-ui/bower_components/vibrant/dist/vibrant.js
Luke Pulverenti 8a6884abef minify
2017-01-27 18:07:14 -05:00

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define([],function(){"use strict";var CanvasImage,Swatch,Vibrant,pv={map:function(array,f){var o={};return f?array.map(function(d,i){return o.index=i,f.call(o,d)}):array.slice()},naturalOrder:function(a,b){return a<b?-1:a>b?1:0},sum:function(array,f){var o={};return array.reduce(f?function(p,d,i){return o.index=i,p+f.call(o,d)}:function(p,d){return p+d},0)},max:function(array,f){return Math.max.apply(null,f?pv.map(array,f):array)}},MMCQ=function(){function getColorIndex(r,g,b){return(r<<2*sigbits)+(g<<sigbits)+b}function PQueue(comparator){function sort(){contents.sort(comparator),sorted=!0}var contents=[],sorted=!1;return{push:function(o){contents.push(o),sorted=!1},peek:function(index){return sorted||sort(),void 0===index&&(index=contents.length-1),contents[index]},pop:function(){return sorted||sort(),contents.pop()},size:function(){return contents.length},map:function(f){return contents.map(f)},debug:function(){return sorted||sort(),contents}}}function VBox(r1,r2,g1,g2,b1,b2,histo){var vbox=this;vbox.r1=r1,vbox.r2=r2,vbox.g1=g1,vbox.g2=g2,vbox.b1=b1,vbox.b2=b2,vbox.histo=histo}function CMap(){this.vboxes=new PQueue(function(a,b){return pv.naturalOrder(a.vbox.count()*a.vbox.volume(),b.vbox.count()*b.vbox.volume())})}function getHisto(pixels){var index,rval,gval,bval,histosize=1<<3*sigbits,histo=new Array(histosize);return pixels.forEach(function(pixel){rval=pixel[0]>>rshift,gval=pixel[1]>>rshift,bval=pixel[2]>>rshift,index=getColorIndex(rval,gval,bval),histo[index]=(histo[index]||0)+1}),histo}function vboxFromPixels(pixels,histo){var rval,gval,bval,rmin=1e6,rmax=0,gmin=1e6,gmax=0,bmin=1e6,bmax=0;return pixels.forEach(function(pixel){rval=pixel[0]>>rshift,gval=pixel[1]>>rshift,bval=pixel[2]>>rshift,rval<rmin?rmin=rval:rval>rmax&&(rmax=rval),gval<gmin?gmin=gval:gval>gmax&&(gmax=gval),bval<bmin?bmin=bval:bval>bmax&&(bmax=bval)}),new VBox(rmin,rmax,gmin,gmax,bmin,bmax,histo)}function medianCutApply(histo,vbox){function doCut(color){var left,right,vbox1,vbox2,d2,dim1=color+"1",dim2=color+"2",count2=0;for(i=vbox[dim1];i<=vbox[dim2];i++)if(partialsum[i]>total/2){for(vbox1=vbox.copy(),vbox2=vbox.copy(),left=i-vbox[dim1],right=vbox[dim2]-i,d2=left<=right?Math.min(vbox[dim2]-1,~~(i+right/2)):Math.max(vbox[dim1],~~(i-1-left/2));!partialsum[d2];)d2++;for(count2=lookaheadsum[d2];!count2&&partialsum[d2-1];)count2=lookaheadsum[--d2];return vbox1[dim2]=d2,vbox2[dim1]=vbox1[dim2]+1,[vbox1,vbox2]}}var vBoxCount=vbox.count();if(vBoxCount){var rw=vbox.r2-vbox.r1+1,gw=vbox.g2-vbox.g1+1,bw=vbox.b2-vbox.b1+1,maxw=pv.max([rw,gw,bw]);if(1===vBoxCount)return[vbox.copy()];var i,j,k,sum,index,total=0,partialsum=[],lookaheadsum=[];if(maxw===rw)for(i=vbox.r1;i<=vbox.r2;i++){for(sum=0,j=vbox.g1;j<=vbox.g2;j++)for(k=vbox.b1;k<=vbox.b2;k++)index=getColorIndex(i,j,k),sum+=histo[index]||0;total+=sum,partialsum[i]=total}else if(maxw===gw)for(i=vbox.g1;i<=vbox.g2;i++){for(sum=0,j=vbox.r1;j<=vbox.r2;j++)for(k=vbox.b1;k<=vbox.b2;k++)index=getColorIndex(j,i,k),sum+=histo[index]||0;total+=sum,partialsum[i]=total}else for(i=vbox.b1;i<=vbox.b2;i++){for(sum=0,j=vbox.r1;j<=vbox.r2;j++)for(k=vbox.g1;k<=vbox.g2;k++)index=getColorIndex(j,k,i),sum+=histo[index]||0;total+=sum,partialsum[i]=total}return partialsum.forEach(function(d,i){lookaheadsum[i]=total-d}),doCut(maxw===rw?"r":maxw===gw?"g":"b")}}function quantize(pixels,maxcolors){function iter(lh,target){for(var vbox,ncolors=1,niters=0;niters<maxIterations;)if(vbox=lh.pop(),vbox.count()){var vboxes=medianCutApply(histo,vbox),vbox1=vboxes[0],vbox2=vboxes[1];if(!vbox1)return;if(lh.push(vbox1),vbox2&&(lh.push(vbox2),ncolors++),ncolors>=target)return;if(niters++>maxIterations)return}else lh.push(vbox),niters++}if(!pixels.length||maxcolors<2||maxcolors>256)return!1;var histo=getHisto(pixels),nColors=0;histo.forEach(function(){nColors++});var vbox=vboxFromPixels(pixels,histo),pq=new PQueue(function(a,b){return pv.naturalOrder(a.count(),b.count())});pq.push(vbox),iter(pq,fractByPopulations*maxcolors);for(var pq2=new PQueue(function(a,b){return pv.naturalOrder(a.count()*a.volume(),b.count()*b.volume())});pq.size();)pq2.push(pq.pop());iter(pq2,maxcolors-pq2.size());for(var cmap=new CMap;pq2.size();)cmap.push(pq2.pop());return cmap}var sigbits=5,rshift=8-sigbits,maxIterations=1e3,fractByPopulations=.75;return VBox.prototype={volume:function(force){var vbox=this;return vbox._volume&&!force||(vbox._volume=(vbox.r2-vbox.r1+1)*(vbox.g2-vbox.g1+1)*(vbox.b2-vbox.b1+1)),vbox._volume},count:function(force){var vbox=this,histo=vbox.histo;if(!vbox._count_set||force){var i,j,k,index,npix=0;for(i=vbox.r1;i<=vbox.r2;i++)for(j=vbox.g1;j<=vbox.g2;j++)for(k=vbox.b1;k<=vbox.b2;k++)index=getColorIndex(i,j,k),npix+=histo[index]||0;vbox._count=npix,vbox._count_set=!0}return vbox._count},copy:function(){var vbox=this;return new VBox(vbox.r1,vbox.r2,vbox.g1,vbox.g2,vbox.b1,vbox.b2,vbox.histo)},avg:function(force){var vbox=this,histo=vbox.histo;if(!vbox._avg||force){var hval,i,j,k,histoindex,ntot=0,mult=1<<8-sigbits,rsum=0,gsum=0,bsum=0;for(i=vbox.r1;i<=vbox.r2;i++)for(j=vbox.g1;j<=vbox.g2;j++)for(k=vbox.b1;k<=vbox.b2;k++)histoindex=getColorIndex(i,j,k),hval=histo[histoindex]||0,ntot+=hval,rsum+=hval*(i+.5)*mult,gsum+=hval*(j+.5)*mult,bsum+=hval*(k+.5)*mult;ntot?vbox._avg=[~~(rsum/ntot),~~(gsum/ntot),~~(bsum/ntot)]:vbox._avg=[~~(mult*(vbox.r1+vbox.r2+1)/2),~~(mult*(vbox.g1+vbox.g2+1)/2),~~(mult*(vbox.b1+vbox.b2+1)/2)]}return vbox._avg},contains:function(pixel){var vbox=this,rval=pixel[0]>>rshift;return gval=pixel[1]>>rshift,bval=pixel[2]>>rshift,rval>=vbox.r1&&rval<=vbox.r2&&gval>=vbox.g1&&gval<=vbox.g2&&bval>=vbox.b1&&bval<=vbox.b2}},CMap.prototype={push:function(vbox){this.vboxes.push({vbox:vbox,color:vbox.avg()})},palette:function(){return this.vboxes.map(function(vb){return vb.color})},size:function(){return this.vboxes.size()},map:function(color){for(var vboxes=this.vboxes,i=0;i<vboxes.size();i++)if(vboxes.peek(i).vbox.contains(color))return vboxes.peek(i).color;return this.nearest(color)},nearest:function(color){for(var d1,d2,pColor,vboxes=this.vboxes,i=0;i<vboxes.size();i++)d2=Math.sqrt(Math.pow(color[0]-vboxes.peek(i).color[0],2)+Math.pow(color[1]-vboxes.peek(i).color[1],2)+Math.pow(color[2]-vboxes.peek(i).color[2],2)),(d2<d1||void 0===d1)&&(d1=d2,pColor=vboxes.peek(i).color);return pColor},forcebw:function(){var vboxes=this.vboxes;vboxes.sort(function(a,b){return pv.naturalOrder(pv.sum(a.color),pv.sum(b.color))});var lowest=vboxes[0].color;lowest[0]<5&&lowest[1]<5&&lowest[2]<5&&(vboxes[0].color=[0,0,0]);var idx=vboxes.length-1,highest=vboxes[idx].color;highest[0]>251&&highest[1]>251&&highest[2]>251&&(vboxes[idx].color=[255,255,255])}},{quantize:quantize}}(),bind=function(fn,me){return function(){return fn.apply(me,arguments)}},slice=[].slice;window.Swatch=Swatch=function(){function Swatch(rgb,population){this.rgb=rgb,this.population=population}return Swatch.prototype.hsl=void 0,Swatch.prototype.rgb=void 0,Swatch.prototype.population=1,Swatch.yiq=0,Swatch.prototype.getHsl=function(){return this.hsl||(this.hsl=Vibrant.rgbToHsl(this.rgb[0],this.rgb[1],this.rgb[2])),this.hsl},Swatch.prototype.getPopulation=function(){return this.population},Swatch.prototype.getRgb=function(){return this.rgb},Swatch.prototype.getHex=function(){return"#"+((1<<24)+(this.rgb[0]<<16)+(this.rgb[1]<<8)+this.rgb[2]).toString(16).slice(1,7)},Swatch.prototype.getTitleTextColor=function(){return this._ensureTextColors(),this.yiq<200?"#fff":"#000"},Swatch.prototype.getBodyTextColor=function(){return this._ensureTextColors(),this.yiq<150?"#fff":"#000"},Swatch.prototype._ensureTextColors=function(){if(!this.yiq)return this.yiq=(299*this.rgb[0]+587*this.rgb[1]+114*this.rgb[2])/1e3,this.yiq},Swatch}(),window.Vibrant=Vibrant=function(){function Vibrant(sourceImage,colorCount,quality){this.swatches=bind(this.swatches,this);var a,allPixels,b,cmap,g,i,image,imageData,offset,pixelCount,pixels,r;"undefined"==typeof colorCount&&(colorCount=16),"undefined"==typeof quality&&(quality=5),image=new CanvasImage(sourceImage);try{for(imageData=image.getImageData(),pixels=imageData.data,pixelCount=image.getPixelCount(),allPixels=[],i=0;i<pixelCount;)offset=4*i,r=pixels[offset+0],g=pixels[offset+1],b=pixels[offset+2],a=pixels[offset+3],a>=125&&(r>250&&g>250&&b>250||allPixels.push([r,g,b])),i+=quality;cmap=this.quantize(allPixels,colorCount),this._swatches=cmap.vboxes.map(function(_this){return function(vbox){return new Swatch(vbox.color,vbox.vbox.count())}}(this)),this.maxPopulation=this.findMaxPopulation,this.generateVarationColors(),this.generateEmptySwatches()}finally{image.removeCanvas()}}return Vibrant.prototype.quantize=MMCQ.quantize,Vibrant.prototype._swatches=[],Vibrant.prototype.TARGET_DARK_LUMA=.26,Vibrant.prototype.MAX_DARK_LUMA=.45,Vibrant.prototype.MIN_LIGHT_LUMA=.55,Vibrant.prototype.TARGET_LIGHT_LUMA=.74,Vibrant.prototype.MIN_NORMAL_LUMA=.3,Vibrant.prototype.TARGET_NORMAL_LUMA=.5,Vibrant.prototype.MAX_NORMAL_LUMA=.7,Vibrant.prototype.TARGET_MUTED_SATURATION=.3,Vibrant.prototype.MAX_MUTED_SATURATION=.4,Vibrant.prototype.TARGET_VIBRANT_SATURATION=1,Vibrant.prototype.MIN_VIBRANT_SATURATION=.35,Vibrant.prototype.WEIGHT_SATURATION=3,Vibrant.prototype.WEIGHT_LUMA=6,Vibrant.prototype.WEIGHT_POPULATION=1,Vibrant.prototype.VibrantSwatch=void 0,Vibrant.prototype.MutedSwatch=void 0,Vibrant.prototype.DarkVibrantSwatch=void 0,Vibrant.prototype.DarkMutedSwatch=void 0,Vibrant.prototype.LightVibrantSwatch=void 0,Vibrant.prototype.LightMutedSwatch=void 0,Vibrant.prototype.HighestPopulation=0,Vibrant.prototype.generateVarationColors=function(){return this.VibrantSwatch=this.findColorVariation(this.TARGET_NORMAL_LUMA,this.MIN_NORMAL_LUMA,this.MAX_NORMAL_LUMA,this.TARGET_VIBRANT_SATURATION,this.MIN_VIBRANT_SATURATION,1),this.LightVibrantSwatch=this.findColorVariation(this.TARGET_LIGHT_LUMA,this.MIN_LIGHT_LUMA,1,this.TARGET_VIBRANT_SATURATION,this.MIN_VIBRANT_SATURATION,1),this.DarkVibrantSwatch=this.findColorVariation(this.TARGET_DARK_LUMA,0,this.MAX_DARK_LUMA,this.TARGET_VIBRANT_SATURATION,this.MIN_VIBRANT_SATURATION,1),this.MutedSwatch=this.findColorVariation(this.TARGET_NORMAL_LUMA,this.MIN_NORMAL_LUMA,this.MAX_NORMAL_LUMA,this.TARGET_MUTED_SATURATION,0,this.MAX_MUTED_SATURATION),this.LightMutedSwatch=this.findColorVariation(this.TARGET_LIGHT_LUMA,this.MIN_LIGHT_LUMA,1,this.TARGET_MUTED_SATURATION,0,this.MAX_MUTED_SATURATION),this.DarkMutedSwatch=this.findColorVariation(this.TARGET_DARK_LUMA,0,this.MAX_DARK_LUMA,this.TARGET_MUTED_SATURATION,0,this.MAX_MUTED_SATURATION),this.DarkMutedSwatch},Vibrant.prototype.generateEmptySwatches=function(){var hsl;if(void 0===this.VibrantSwatch&&void 0!==this.DarkVibrantSwatch&&(hsl=this.DarkVibrantSwatch.getHsl(),hsl[2]=this.TARGET_NORMAL_LUMA,this.VibrantSwatch=new Swatch(Vibrant.hslToRgb(hsl[0],hsl[1],hsl[2]),0)),void 0===this.DarkVibrantSwatch&&void 0!==this.VibrantSwatch)return hsl=this.VibrantSwatch.getHsl(),hsl[2]=this.TARGET_DARK_LUMA,this.DarkVibrantSwatch=new Swatch(Vibrant.hslToRgb(hsl[0],hsl[1],hsl[2]),0),this.DarkVibrantSwatch},Vibrant.prototype.findMaxPopulation=function(){var j,len,population,ref,swatch;for(population=0,ref=this._swatches,j=0,len=ref.length;j<len;j++)swatch=ref[j],population=Math.max(population,swatch.getPopulation());return population},Vibrant.prototype.findColorVariation=function(targetLuma,minLuma,maxLuma,targetSaturation,minSaturation,maxSaturation){var j,len,luma,max,maxValue,ref,sat,swatch,value;for(max=void 0,maxValue=0,ref=this._swatches,j=0,len=ref.length;j<len;j++)swatch=ref[j],sat=swatch.getHsl()[1],luma=swatch.getHsl()[2],sat>=minSaturation&&sat<=maxSaturation&&luma>=minLuma&&luma<=maxLuma&&!this.isAlreadySelected(swatch)&&(value=this.createComparisonValue(sat,targetSaturation,luma,targetLuma,swatch.getPopulation(),this.HighestPopulation),(void 0===max||value>maxValue)&&(max=swatch,maxValue=value));return max},Vibrant.prototype.createComparisonValue=function(saturation,targetSaturation,luma,targetLuma,population,maxPopulation){return this.weightedMean(this.invertDiff(saturation,targetSaturation),this.WEIGHT_SATURATION,this.invertDiff(luma,targetLuma),this.WEIGHT_LUMA,population/maxPopulation,this.WEIGHT_POPULATION)},Vibrant.prototype.invertDiff=function(value,targetValue){return 1-Math.abs(value-targetValue)},Vibrant.prototype.weightedMean=function(){var i,sum,sumWeight,value,values,weight;for(values=1<=arguments.length?slice.call(arguments,0):[],sum=0,sumWeight=0,i=0;i<values.length;)value=values[i],weight=values[i+1],sum+=value*weight,sumWeight+=weight,i+=2;return sum/sumWeight},Vibrant.prototype.swatches=function(){return{Vibrant:this.VibrantSwatch,Muted:this.MutedSwatch,DarkVibrant:this.DarkVibrantSwatch,DarkMuted:this.DarkMutedSwatch,LightVibrant:this.LightVibrantSwatch,LightMuted:this.LightMuted}},Vibrant.prototype.isAlreadySelected=function(swatch){return this.VibrantSwatch===swatch||this.DarkVibrantSwatch===swatch||this.LightVibrantSwatch===swatch||this.MutedSwatch===swatch||this.DarkMutedSwatch===swatch||this.LightMutedSwatch===swatch},Vibrant.rgbToHsl=function(r,g,b){var d,h,l,max,min,s;if(r/=255,g/=255,b/=255,max=Math.max(r,g,b),min=Math.min(r,g,b),h=void 0,s=void 0,l=(max+min)/2,max===min)h=s=0;else{switch(d=max-min,s=l>.5?d/(2-max-min):d/(max+min),max){case r:h=(g-b)/d+(g<b?6:0);break;case g:h=(b-r)/d+2;break;case b:h=(r-g)/d+4}h/=6}return[h,s,l]},Vibrant.hslToRgb=function(h,s,l){var b,g,hue2rgb,p,q,r;return r=void 0,g=void 0,b=void 0,hue2rgb=function(p,q,t){return t<0&&(t+=1),t>1&&(t-=1),t<1/6?p+6*(q-p)*t:t<.5?q:t<2/3?p+(q-p)*(2/3-t)*6:p},0===s?r=g=b=l:(q=l<.5?l*(1+s):l+s-l*s,p=2*l-q,r=hue2rgb(p,q,h+1/3),g=hue2rgb(p,q,h),b=hue2rgb(p,q,h-1/3)),[255*r,255*g,255*b]},Vibrant}(),window.CanvasImage=CanvasImage=function(){function CanvasImage(image){this.canvas=document.createElement("canvas"),this.context=this.canvas.getContext("2d");var originalWidth=image.width,originalHeight=image.height,maxArea=9e4,bitmapArea=originalWidth*originalHeight,scaleRatio=1;bitmapArea>maxArea&&(scaleRatio=maxArea/bitmapArea),this.width=this.canvas.width=originalWidth*scaleRatio,this.height=this.canvas.height=originalHeight*scaleRatio,this.context.drawImage(image,0,0,originalWidth,originalHeight,0,0,this.width,this.height)}return CanvasImage.prototype.getPixelCount=function(){return this.width*this.height},CanvasImage.prototype.getImageData=function(){return this.context.getImageData(0,0,this.width,this.height)},CanvasImage.prototype.removeCanvas=function(){this.context=null,this.canvas=null},CanvasImage}()});
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