jQuery.fn.vintage=function(options){var r=[0,0,0,1,1,2,3,3,3,4,4,4,5,5,5,6,6,7,7,7,7,8,8,8,9,9,9,9,10,10,10,10,11,11,12,12,12,12,13,13,13,14,14,15,15,16,16,17,17,17,18,19,19,20,21,22,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,39,40,41,42,44,45,47,48,49,52,54,55,57,59,60,62,65,67,69,70,72,74,77,79,81,83,86,88,90,92,94,97,99,101,103,107,109,111,112,116,118,120,124,126,127,129,133,135,136,140,142,143,145,149,150,152,155,157,159,162,163,165,167,170,171,173,176,177,178,180,183,184,185,188,189,190,192,194,195,196,198,200,201,202,203,204,206,207,208,209,211,212,213,214,215,216,218,219,219,220,221,222,223,224,225,226,227,227,228,229,229,230,231,232,232,233,234,234,235,236,236,237,238,238,239,239,240,241,241,242,242,243,244,244,245,245,245,246,247,247,248,248,249,249,249,250,251,251,252,252,252,253,254,254,254,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255],g=[0,0,1,2,2,3,5,5,6,7,8,8,10,11,11,12,13,15,15,16,17,18,18,19,21,22,22,23,24,26,26,27,28,29,31,31,32,33,34,35,35,37,38,39,40,41,43,44,44,45,46,47,48,50,51,52,53,54,56,57,58,59,60,61,63,64,65,66,67,68,69,71,72,73,74,75,76,77,79,80,81,83,84,85,86,88,89,90,92,93,94,95,96,97,100,101,102,103,105,106,107,108,109,111,113,114,115,117,118,119,120,122,123,124,126,127,128,129,131,132,133,135,136,137,138,140,141,142,144,145,146,148,149,150,151,153,154,155,157,158,159,160,162,163,164,166,167,168,169,171,172,173,174,175,176,177,178,179,181,182,183,184,186,186,187,188,189,190,192,193,194,195,195,196,197,199,200,201,202,202,203,204,205,206,207,208,208,209,210,211,212,213,214,214,215,216,217,218,219,219,220,221,222,223,223,224,225,226,226,227,228,228,229,230,231,232,232,232,233,234,235,235,236,236,237,238,238,239,239,240,240,241,242,242,242,243,244,245,245,246,246,247,247,248,249,249,249,250,251,251,252,252,252,253,254,255],b=[53,53,53,54,54,54,55,55,55,56,57,57,57,58,58,58,59,59,59,60,61,61,61,62,62,63,63,63,64,65,65,65,66,66,67,67,67,68,69,69,69,70,70,71,71,72,73,73,73,74,74,75,75,76,77,77,78,78,79,79,80,81,81,82,82,83,83,84,85,85,86,86,87,87,88,89,89,90,90,91,91,93,93,94,94,95,95,96,97,98,98,99,99,100,101,102,102,103,104,105,105,106,106,107,108,109,109,110,111,111,112,113,114,114,115,116,117,117,118,119,119,121,121,122,122,123,124,125,126,126,127,128,129,129,130,131,132,132,133,134,134,135,136,137,137,138,139,140,140,141,142,142,143,144,145,145,146,146,148,148,149,149,150,151,152,152,153,153,154,155,156,156,157,157,158,159,160,160,161,161,162,162,163,164,164,165,165,166,166,167,168,168,169,169,170,170,171,172,172,173,173,174,174,175,176,176,177,177,177,178,178,179,180,180,181,181,181,182,182,183,184,184,184,185,185,186,186,186,187,188,188,188,189,189,189,190,190,191,191,192,192,193,193,193,194,194,194,195,196,196,196,197,197,197,198,199];var defaultOptions={vignette:{black:0.6,white:0.1},noise:20,screen:{red:227,green:12,blue:169,strength:0.1},desaturate:false,allowMultiEffect:false,mime:'image/jpeg',viewFinder:false};var greenOptions={vignette:{black:0.6,white:0.1},noise:20,screen:{red:255,green:255,blue:0,strength:0.1},desaturate:false,allowMultiEffect:false,mime:'image/jpeg',viewFinder:false};var grayscaleOptions={vignette:{black:0.7,white:0.2},noise:25,screen:false,desaturate:1,allowMultiEffect:false,mime:'image/jpeg',viewFinder:false};var sepiaOptions={vignette:{black:0.6,white:0.1},noise:25,screen:{red:141,green:107,blue:3,strength:0.47},desaturate:0.7,allowMultiEffect:false,mime:'image/jpeg',viewFinder:false};var customOptions={vignette:false,noise:false,screen:false,desaturate:false,allowMultiEffect:true,mime:'image/jpeg',viewFinder:false};options=options||{};options.preset=options.preset||'default';switch(options.preset){case'custom':options=jQuery.extend(customOptions,options);break;case'green':options=jQuery.extend(greenOptions,options);break;case'sepia':options=jQuery.extend(sepiaOptions,options);break;case'grayscale':options=jQuery.extend(grayscaleOptions,options);break;default:options=jQuery.extend(defaultOptions,options);break;}
return this.each(function(){var obj=jQuery(this),ctx,canvas,loader;if(!obj.is('img')){return;}
if(options.allowMultiEffect===false){if(obj.data('vintage-applied')!==true){obj.data('vintage-applied',true);}else{return;}}
var initVintage=function(){var pos=obj.offset();pos.top+=Math.round(obj.height()/2);pos.left+=Math.round(obj.width()/2);loader=jQuery('<div class="vintage-loader">Loading&hellip;</div>');loader.css('top',pos.top+'px').css('left',pos.left+'px').hide().appendTo('body').fadeTo(0,0.8,function(){process();});};var process=function(){canvas=jQuery('<canvas></canvas>').get(0);if(!canvas.getContext){loader.addClass('error').html('Your browser does not support the canvas element.').animate({opacity:'+=0'},3000,function(){$(this).fadeOut(300,function(){$(this).remove();});});}else{ctx=canvas.getContext('2d');var image=new Image();image.src=obj.attr('src');image.onload=function(){canvas.width=this.width;canvas.height=this.height;ctx.drawImage(this,0,0,this.width,this.height,0,0,canvas.width,canvas.height);if(options.vignette!==false){addVignetteEffect();}
manipulatePixels(function(){obj.attr('src',canvas.toDataURL(options.mime));loader.remove();if(typeof(options.callback)=='function'){options.callback();}});};}};var addVignetteEffect=function(){var gradient;var outerRadius=Math.sqrt(Math.pow(canvas.width/2,2)+Math.pow(canvas.height/2,2));ctx.globalCompositeOperation='source-over';gradient=ctx.createRadialGradient(canvas.width/2,canvas.height/2,0,canvas.width/2,canvas.height/2,outerRadius);gradient.addColorStop(0,'rgba(0,0,0,0)');gradient.addColorStop(0.65,'rgba(0,0,0,0)');gradient.addColorStop(1,'rgba(0,0,0,'+options.vignette.black+')');ctx.fillStyle=gradient;ctx.fillRect(0,0,canvas.width,canvas.height);ctx.globalCompositeOperation='lighter';gradient=ctx.createRadialGradient(canvas.width/2,canvas.height/2,0,canvas.width/2,canvas.height/2,outerRadius);gradient.addColorStop(0,'rgba(255,255,255,'+options.vignette.white+')');gradient.addColorStop(0.65,'rgba(255,255,255,0)');gradient.addColorStop(1,'rgba(0,0,0,0)');ctx.fillStyle=gradient;ctx.fillRect(0,0,canvas.width,canvas.height);};var manipulatePixels=function(callback){var imageData=ctx.getImageData(0,0,canvas.width,canvas.height);for(var i=0;i<imageData.data.length;i+=4){if(options.desaturate!==false){var average=(r[imageData.data[i]]+g[imageData.data[i+1]]+b[imageData.data[i+2]])/3;imageData.data[i]+=Math.round((average-imageData.data[i])*options.desaturate);imageData.data[i+1]+=Math.round((average-imageData.data[i+1])*options.desaturate);imageData.data[i+2]+=Math.round((average-imageData.data[i+2])*options.desaturate);}else{imageData.data[i]=r[imageData.data[i]];imageData.data[i+1]=g[imageData.data[i+1]];imageData.data[i+2]=b[imageData.data[i+2]];}
if(options.screen!==false){imageData.data[i]=255-((255-imageData.data[i])*(255-options.screen.red*options.screen.strength)/255);imageData.data[i+1]=255-((255-imageData.data[i+1])*(255-options.screen.green*options.screen.strength)/255);imageData.data[i+2]=255-((255-imageData.data[i+2])*(255-options.screen.blue*options.screen.strength)/255);}
if(options.noise>0){var noise=Math.round(options.noise-Math.random()*options.noise/2);var dblHlp=0;for(var k=0;k<3;k++){dblHlp=noise+imageData.data[i+k];imageData.data[i+k]=((dblHlp>255)?255:((dblHlp<0)?0:dblHlp));}}}
if(options.viewFinder!==false){var img=new Image();img.src=options.viewFinder;img.onload=function(){var viewFinderCanvas=jQuery('<canvas></canvas>').get(0);var viewFinderCtx=viewFinderCanvas.getContext('2d');viewFinderCanvas.width=canvas.width;viewFinderCanvas.height=canvas.height;viewFinderCtx.drawImage(this,0,0,this.width,this.height,0,0,canvas.width,canvas.height);var viewFinderImageData=viewFinderCtx.getImageData(0,0,canvas.width,canvas.height);for(var a=0;a<imageData.data.length;a+=4){var red=(imageData.data[a]*viewFinderImageData.data[a])/255;imageData.data[a]=red>255?255:red<0?0:red;var green=(imageData.data[a+1]*viewFinderImageData.data[a+1])/255;imageData.data[a+1]=green>255?green:green<0?0:green;var blue=(imageData.data[a+2]*viewFinderImageData.data[a+2])/255;imageData.data[a+2]=blue>255?255:blue<0?0:blue;}
ctx.putImageData(imageData,0,0);callback();}}else{ctx.putImageData(imageData,0,0);callback();}};initVintage();});};