diff --git a/dist/gif.js b/dist/gif.js index 2e4d204..e4cd250 100644 --- a/dist/gif.js +++ b/dist/gif.js @@ -1,3 +1,3 @@ // gif.js 0.2.0 - https://github.com/jnordberg/gif.js -(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.GIF=f()}})(function(){var define,module,exports;return function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o0&&this._events[type].length>m){this._events[type].warned=true;console.error("(node) warning: possible EventEmitter memory "+"leak detected. %d listeners added. "+"Use emitter.setMaxListeners() to increase limit.",this._events[type].length);if(typeof console.trace==="function"){console.trace()}}}return this};EventEmitter.prototype.on=EventEmitter.prototype.addListener;EventEmitter.prototype.once=function(type,listener){if(!isFunction(listener))throw TypeError("listener must be a function");var fired=false;function g(){this.removeListener(type,g);if(!fired){fired=true;listener.apply(this,arguments)}}g.listener=listener;this.on(type,g);return this};EventEmitter.prototype.removeListener=function(type,listener){var list,position,length,i;if(!isFunction(listener))throw TypeError("listener must be a function");if(!this._events||!this._events[type])return this;list=this._events[type];length=list.length;position=-1;if(list===listener||isFunction(list.listener)&&list.listener===listener){delete this._events[type];if(this._events.removeListener)this.emit("removeListener",type,listener)}else if(isObject(list)){for(i=length;i-- >0;){if(list[i]===listener||list[i].listener&&list[i].listener===listener){position=i;break}}if(position<0)return this;if(list.length===1){list.length=0;delete this._events[type]}else{list.splice(position,1)}if(this._events.removeListener)this.emit("removeListener",type,listener)}return this};EventEmitter.prototype.removeAllListeners=function(type){var key,listeners;if(!this._events)return this;if(!this._events.removeListener){if(arguments.length===0)this._events={};else if(this._events[type])delete this._events[type];return this}if(arguments.length===0){for(key in this._events){if(key==="removeListener")continue;this.removeAllListeners(key)}this.removeAllListeners("removeListener");this._events={};return this}listeners=this._events[type];if(isFunction(listeners)){this.removeListener(type,listeners)}else if(listeners){while(listeners.length)this.removeListener(type,listeners[listeners.length-1])}delete this._events[type];return this};EventEmitter.prototype.listeners=function(type){var ret;if(!this._events||!this._events[type])ret=[];else if(isFunction(this._events[type]))ret=[this._events[type]];else ret=this._events[type].slice();return ret};EventEmitter.prototype.listenerCount=function(type){if(this._events){var evlistener=this._events[type];if(isFunction(evlistener))return 1;else if(evlistener)return evlistener.length}return 0};EventEmitter.listenerCount=function(emitter,type){return emitter.listenerCount(type)};function isFunction(arg){return typeof arg==="function"}function isNumber(arg){return typeof arg==="number"}function isObject(arg){return typeof arg==="object"&&arg!==null}function isUndefined(arg){return arg===void 0}},{}],2:[function(require,module,exports){var UA,browser,mode,platform,ua;ua=navigator.userAgent.toLowerCase();platform=navigator.platform.toLowerCase();UA=ua.match(/(opera|ie|firefox|chrome|version)[\s\/:]([\w\d\.]+)?.*?(safari|version[\s\/:]([\w\d\.]+)|$)/)||[null,"unknown",0];mode=UA[1]==="ie"&&document.documentMode;browser={name:UA[1]==="version"?UA[3]:UA[1],version:mode||parseFloat(UA[1]==="opera"&&UA[4]?UA[4]:UA[2]),platform:{name:ua.match(/ip(?:ad|od|hone)/)?"ios":(ua.match(/(?:webos|android)/)||platform.match(/mac|win|linux/)||["other"])[0]}};browser[browser.name]=true;browser[browser.name+parseInt(browser.version,10)]=true;browser.platform[browser.platform.name]=true;module.exports=browser},{}],3:[function(require,module,exports){var EventEmitter,GIF,browser,extend=function(child,parent){for(var key in parent){if(hasProp.call(parent,key))child[key]=parent[key]}function ctor(){this.constructor=child}ctor.prototype=parent.prototype;child.prototype=new ctor;child.__super__=parent.prototype;return child},hasProp={}.hasOwnProperty,indexOf=[].indexOf||function(item){for(var i=0,l=this.length;iref;i=0<=ref?++j:--j){results.push(null)}return results}.call(this);numWorkers=this.spawnWorkers();if(this.options.globalPalette===true){this.renderNextFrame()}else{for(i=j=0,ref=numWorkers;0<=ref?jref;i=0<=ref?++j:--j){this.renderNextFrame()}}this.emit("start");return this.emit("progress",0)};GIF.prototype.abort=function(){var worker;while(true){worker=this.activeWorkers.shift();if(worker==null){break}this.log("killing active worker");worker.terminate()}this.running=false;return this.emit("abort")};GIF.prototype.spawnWorkers=function(){var j,numWorkers,ref,results;numWorkers=Math.min(this.options.workers,this.frames.length);(function(){results=[];for(var j=ref=this.freeWorkers.length;ref<=numWorkers?jnumWorkers;ref<=numWorkers?j++:j--){results.push(j)}return results}).apply(this).forEach(function(_this){return function(i){var worker;_this.log("spawning worker "+i);worker=new Worker(_this.options.workerScript);worker.onmessage=function(event){_this.activeWorkers.splice(_this.activeWorkers.indexOf(worker),1);_this.freeWorkers.push(worker);return _this.frameFinished(event.data)};return _this.freeWorkers.push(worker)}}(this));return numWorkers};GIF.prototype.frameFinished=function(frame){var i,j,ref;this.log("frame "+frame.index+" finished - "+this.activeWorkers.length+" active");this.finishedFrames++;this.emit("progress",this.finishedFrames/this.frames.length);this.imageParts[frame.index]=frame;if(this.options.globalPalette===true){this.options.globalPalette=frame.globalPalette;this.log("global palette analyzed");if(this.frames.length>2){for(i=j=1,ref=this.freeWorkers.length;1<=ref?jref;i=1<=ref?++j:--j){this.renderNextFrame()}}}if(indexOf.call(this.imageParts,null)>=0){return this.renderNextFrame()}else{return this.finishRendering()}};GIF.prototype.finishRendering=function(){var data,frame,i,image,j,k,l,len,len1,len2,len3,offset,page,ref,ref1,ref2;len=0;ref=this.imageParts;for(j=0,len1=ref.length;j=this.frames.length){return}frame=this.frames[this.nextFrame++];worker=this.freeWorkers.shift();task=this.getTask(frame);this.log("starting frame "+(task.index+1)+" of "+this.frames.length);this.activeWorkers.push(worker);return worker.postMessage(task)};GIF.prototype.getContextData=function(ctx){return ctx.getImageData(0,0,this.options.width,this.options.height).data};GIF.prototype.getImageData=function(image){var ctx;if(this._canvas==null){this._canvas=document.createElement("canvas");this._canvas.width=this.options.width;this._canvas.height=this.options.height}ctx=this._canvas.getContext("2d");ctx.setFill=this.options.background;ctx.fillRect(0,0,this.options.width,this.options.height);ctx.drawImage(image,0,0);return this.getContextData(ctx)};GIF.prototype.getTask=function(frame){var index,task;index=this.frames.indexOf(frame);task={index:index,last:index===this.frames.length-1,delay:frame.delay,transparent:frame.transparent,width:this.options.width,height:this.options.height,quality:this.options.quality,dither:this.options.dither,globalPalette:this.options.globalPalette,repeat:this.options.repeat,canTransfer:browser.name==="chrome"};if(frame.data!=null){task.data=frame.data}else if(frame.context!=null){task.data=this.getContextData(frame.context)}else if(frame.image!=null){task.data=this.getImageData(frame.image)}else{throw new Error("Invalid frame")}return task};GIF.prototype.log=function(){var args;args=1<=arguments.length?slice.call(arguments,0):[];if(!this.options.debug){return}return console.log.apply(console,args)};return GIF}(EventEmitter);module.exports=GIF},{"./browser.coffee":2,events:1}]},{},[3])(3)}); +(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.GIF=f()}})(function(){var define,module,exports;return function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o0&&this._events[type].length>m){this._events[type].warned=true;console.error("(node) warning: possible EventEmitter memory "+"leak detected. %d listeners added. "+"Use emitter.setMaxListeners() to increase limit.",this._events[type].length);if(typeof console.trace==="function"){console.trace()}}}return this};EventEmitter.prototype.on=EventEmitter.prototype.addListener;EventEmitter.prototype.once=function(type,listener){if(!isFunction(listener))throw TypeError("listener must be a function");var fired=false;function g(){this.removeListener(type,g);if(!fired){fired=true;listener.apply(this,arguments)}}g.listener=listener;this.on(type,g);return this};EventEmitter.prototype.removeListener=function(type,listener){var list,position,length,i;if(!isFunction(listener))throw TypeError("listener must be a function");if(!this._events||!this._events[type])return this;list=this._events[type];length=list.length;position=-1;if(list===listener||isFunction(list.listener)&&list.listener===listener){delete this._events[type];if(this._events.removeListener)this.emit("removeListener",type,listener)}else if(isObject(list)){for(i=length;i-- >0;){if(list[i]===listener||list[i].listener&&list[i].listener===listener){position=i;break}}if(position<0)return this;if(list.length===1){list.length=0;delete this._events[type]}else{list.splice(position,1)}if(this._events.removeListener)this.emit("removeListener",type,listener)}return this};EventEmitter.prototype.removeAllListeners=function(type){var key,listeners;if(!this._events)return this;if(!this._events.removeListener){if(arguments.length===0)this._events={};else if(this._events[type])delete this._events[type];return this}if(arguments.length===0){for(key in this._events){if(key==="removeListener")continue;this.removeAllListeners(key)}this.removeAllListeners("removeListener");this._events={};return this}listeners=this._events[type];if(isFunction(listeners)){this.removeListener(type,listeners)}else if(listeners){while(listeners.length)this.removeListener(type,listeners[listeners.length-1])}delete this._events[type];return this};EventEmitter.prototype.listeners=function(type){var ret;if(!this._events||!this._events[type])ret=[];else if(isFunction(this._events[type]))ret=[this._events[type]];else ret=this._events[type].slice();return ret};EventEmitter.prototype.listenerCount=function(type){if(this._events){var evlistener=this._events[type];if(isFunction(evlistener))return 1;else if(evlistener)return evlistener.length}return 0};EventEmitter.listenerCount=function(emitter,type){return emitter.listenerCount(type)};function isFunction(arg){return typeof arg==="function"}function isNumber(arg){return typeof arg==="number"}function isObject(arg){return typeof arg==="object"&&arg!==null}function isUndefined(arg){return arg===void 0}},{}],2:[function(require,module,exports){var UA,browser,mode,platform,ua;ua=navigator.userAgent.toLowerCase();platform=navigator.platform.toLowerCase();UA=ua.match(/(opera|ie|firefox|chrome|version)[\s\/:]([\w\d\.]+)?.*?(safari|version[\s\/:]([\w\d\.]+)|$)/)||[null,"unknown",0];mode=UA[1]==="ie"&&document.documentMode;browser={name:UA[1]==="version"?UA[3]:UA[1],version:mode||parseFloat(UA[1]==="opera"&&UA[4]?UA[4]:UA[2]),platform:{name:ua.match(/ip(?:ad|od|hone)/)?"ios":(ua.match(/(?:webos|android)/)||platform.match(/mac|win|linux/)||["other"])[0]}};browser[browser.name]=true;browser[browser.name+parseInt(browser.version,10)]=true;browser.platform[browser.platform.name]=true;module.exports=browser},{}],3:[function(require,module,exports){var EventEmitter,GIF,browser,extend=function(child,parent){for(var key in parent){if(hasProp.call(parent,key))child[key]=parent[key]}function ctor(){this.constructor=child}ctor.prototype=parent.prototype;child.prototype=new ctor;child.__super__=parent.prototype;return child},hasProp={}.hasOwnProperty,indexOf=[].indexOf||function(item){for(var i=0,l=this.length;iref;i=0<=ref?++j:--j){results.push(null)}return results}.call(this);numWorkers=this.spawnWorkers();if(this.options.globalPalette===true){this.renderNextFrame()}else{for(i=j=0,ref=numWorkers;0<=ref?jref;i=0<=ref?++j:--j){this.renderNextFrame()}}this.emit("start");return this.emit("progress",0)};GIF.prototype.abort=function(){var worker;while(true){worker=this.activeWorkers.shift();if(worker==null){break}this.log("killing active worker");worker.terminate()}this.running=false;return this.emit("abort")};GIF.prototype.spawnWorkers=function(){var j,numWorkers,ref,results;numWorkers=Math.min(this.options.workers,this.frames.length);(function(){results=[];for(var j=ref=this.freeWorkers.length;ref<=numWorkers?jnumWorkers;ref<=numWorkers?j++:j--){results.push(j)}return results}).apply(this).forEach(function(_this){return function(i){var worker;_this.log("spawning worker "+i);worker=new Worker(_this.options.workerScript);worker.onmessage=function(event){_this.activeWorkers.splice(_this.activeWorkers.indexOf(worker),1);_this.freeWorkers.push(worker);return _this.frameFinished(event.data)};return _this.freeWorkers.push(worker)}}(this));return numWorkers};GIF.prototype.frameFinished=function(frame){var i,j,ref;this.log("frame "+frame.index+" finished - "+this.activeWorkers.length+" active");this.finishedFrames++;this.emit("progress",this.finishedFrames/this.frames.length);this.imageParts[frame.index]=frame;if(this.options.globalPalette===true){this.options.globalPalette=frame.globalPalette;this.log("global palette analyzed");if(this.frames.length>2){for(i=j=1,ref=this.freeWorkers.length;1<=ref?jref;i=1<=ref?++j:--j){this.renderNextFrame()}}}if(indexOf.call(this.imageParts,null)>=0){return this.renderNextFrame()}else{return this.finishRendering()}};GIF.prototype.finishRendering=function(){var data,frame,i,image,j,k,l,len,len1,len2,len3,offset,page,ref,ref1,ref2;len=0;ref=this.imageParts;for(j=0,len1=ref.length;j=this.frames.length){return}frame=this.frames[this.nextFrame++];worker=this.freeWorkers.shift();task=this.getTask(frame);this.log("starting frame "+(task.index+1)+" of "+this.frames.length);this.activeWorkers.push(worker);return worker.postMessage(task)};GIF.prototype.getContextData=function(ctx){return ctx.getImageData(0,0,this.options.width,this.options.height).data};GIF.prototype.getImageData=function(image){var ctx;if(this._canvas==null){this._canvas=document.createElement("canvas");this._canvas.width=this.options.width;this._canvas.height=this.options.height}ctx=this._canvas.getContext("2d");ctx.clearRect(0,0,this.options.width,this.options.height);ctx.fillStyle=this.options.background;ctx.fillRect(0,0,this.options.width,this.options.height);if(image instanceof ImageData){ctx.putImageData(image,0,0);return image}ctx.drawImage(image,0,0);return this.getContextData(ctx)};GIF.prototype.getBgImageData=function(){var bg_canvas,bg_ctx;bg_canvas=document.createElement("canvas");bg_canvas.width=this.options.width;bg_canvas.height=this.options.height;bg_ctx=bg_canvas.getContext("2d");bg_ctx.fillStyle="#ffffff";bg_ctx.fillRect(0,0,this.options.width,this.options.height);bg_ctx.drawImage(this._canvas,0,0);return this.getContextData(bg_ctx)};GIF.prototype.getTask=function(frame){var index,task;index=this.frames.indexOf(frame);task={index:index,last:index===this.frames.length-1,delay:frame.delay,dispose:frame.dispose,transparent:frame.transparent,width:this.options.width,height:this.options.height,quality:this.options.quality,dither:this.options.dither,globalPalette:this.options.globalPalette,repeat:this.options.repeat,canTransfer:browser.name==="chrome"};if(frame.data!=null){task.data=frame.data;task.data=this.getContextData(frame.data);task.bg_data=this.getBgImageData()}else if(frame.context!=null){task.data=this.getContextData(frame.context);task.bg_data=this.getBgImageData()}else if(frame.image!=null){task.data=this.getImageData(frame.image);task.bg_data=this.getBgImageData()}else{throw new Error("Invalid frame")}return task};GIF.prototype.log=function(){var args;args=1<=arguments.length?slice.call(arguments,0):[];if(!this.options.debug){return}return console.log.apply(console,args)};return GIF}(EventEmitter);module.exports=GIF},{"./browser.coffee":2,events:1}]},{},[3])(3)}); //# sourceMappingURL=gif.js.map diff --git a/dist/gif.js.map b/dist/gif.js.map index c9059f9..3467f55 100644 --- a/dist/gif.js.map +++ b/dist/gif.js.map @@ -1 +1 @@ -{"version":3,"sources":["node_modules/browser-pack/_prelude.js","node_modules/events/events.js","src/browser.coffee","src/gif.coffee"],"names":["f","exports","module","define","amd","g","window","global","self","this","GIF","e","t","n","r","s","o","u","a","require","i","Error","code","l","call","length","1","EventEmitter","_events","_maxListeners","undefined","prototype","defaultMaxListeners","setMaxListeners","isNumber","isNaN","TypeError","emit","type","er","handler","len","args","listeners","error","isObject","arguments","err","context","isUndefined","isFunction","Array","slice","apply","addListener","listener","m","newListener","push","warned","console","trace","on","once","fired","removeListener","list","position","splice","removeAllListeners","key","ret","listenerCount","evlistener","emitter","arg","UA","browser","mode","platform","ua","navigator","userAgent","toLowerCase","match","document","documentMode","name","version","parseFloat","parseInt","extend","child","parent","hasProp","ctor","constructor","__super__","superClass","defaults","frameDefaults","workerScript","workers","repeat","background","quality","width","height","transparent","debug","dither","delay","copy","options","base","value","running","frames","freeWorkers","activeWorkers","setOptions","setOption","_canvas","results","addFrame","image","frame","ImageData","data","CanvasRenderingContext2D","WebGLRenderingContext","getContextData","childNodes","getImageData","render","j","numWorkers","ref","nextFrame","finishedFrames","imageParts","spawnWorkers","globalPalette","renderNextFrame","abort","worker","shift","log","terminate","Math","min","forEach","_this","Worker","onmessage","event","indexOf","frameFinished","index","finishRendering","k","len1","len2","len3","offset","page","ref1","ref2","pageSize","cursor","round","Uint8Array","set","Blob","task","getTask","postMessage","ctx","createElement","getContext","setFill","fillRect","drawImage","last","canTransfer"],"mappings":";CAAA,SAAAA,GAAA,SAAAC,WAAA,gBAAAC,UAAA,YAAA,CAAAA,OAAAD,QAAAD,QAAA,UAAAG,UAAA,YAAAA,OAAAC,IAAA,CAAAD,UAAAH,OAAA,CAAA,GAAAK,EAAA,UAAAC,UAAA,YAAA,CAAAD,EAAAC,WAAA,UAAAC,UAAA,YAAA,CAAAF,EAAAE,WAAA,UAAAC,QAAA,YAAA,CAAAH,EAAAG,SAAA,CAAAH,EAAAI,KAAAJ,EAAAK,IAAAV,OAAA,WAAA,GAAAG,QAAAD,OAAAD,OAAA,OAAA,SAAAU,GAAAC,EAAAC,EAAAC,GAAA,QAAAC,GAAAC,EAAAC,GAAA,IAAAJ,EAAAG,GAAA,CAAA,IAAAJ,EAAAI,GAAA,CAAA,GAAAE,SAAAC,UAAA,YAAAA,OAAA,KAAAF,GAAAC,EAAA,MAAAA,GAAAF,GAAA,EAAA,IAAAI,EAAA,MAAAA,GAAAJ,GAAA,EAAA,IAAAhB,GAAA,GAAAqB,OAAA,uBAAAL,EAAA,IAAA,MAAAhB,GAAAsB,KAAA,mBAAAtB,EAAA,GAAAuB,GAAAV,EAAAG,IAAAf,WAAAW,GAAAI,GAAA,GAAAQ,KAAAD,EAAAtB,QAAA,SAAAU,GAAA,GAAAE,GAAAD,EAAAI,GAAA,GAAAL,EAAA,OAAAI,GAAAF,EAAAA,EAAAF,IAAAY,EAAAA,EAAAtB,QAAAU,EAAAC,EAAAC,EAAAC,GAAA,MAAAD,GAAAG,GAAAf,QAAA,GAAAmB,SAAAD,UAAA,YAAAA,OAAA,KAAA,GAAAH,GAAA,EAAAA,EAAAF,EAAAW,OAAAT,IAAAD,EAAAD,EAAAE,GAAA,OAAAD,KAAAW,GAAA,SAAAP,QAAAjB,OAAAD,SCqBA,QAAA0B,gBACAlB,KAAAmB,QAAAnB,KAAAmB,WACAnB,MAAAoB,cAAApB,KAAAoB,eAAAC,UAEA5B,OAAAD,QAAA0B,YAGAA,cAAAA,aAAAA,YAEAA,cAAAI,UAAAH,QAAAE,SACAH,cAAAI,UAAAF,cAAAC,SAIAH,cAAAK,oBAAA,EAIAL,cAAAI,UAAAE,gBAAA,SAAApB,GACA,IAAAqB,SAAArB,IAAAA,EAAA,GAAAsB,MAAAtB,GACA,KAAAuB,WAAA,8BACA3B,MAAAoB,cAAAhB,CACA,OAAAJ,MAGAkB,cAAAI,UAAAM,KAAA,SAAAC,MACA,GAAAC,IAAAC,QAAAC,IAAAC,KAAAtB,EAAAuB,SAEA,KAAAlC,KAAAmB,QACAnB,KAAAmB,UAGA,IAAAU,OAAA,QAAA,CACA,IAAA7B,KAAAmB,QAAAgB,OACAC,SAAApC,KAAAmB,QAAAgB,SAAAnC,KAAAmB,QAAAgB,MAAAnB,OAAA,CACAc,GAAAO,UAAA,EACA,IAAAP,aAAAlB,OAAA,CACA,KAAAkB,QACA,CAEA,GAAAQ,KAAA,GAAA1B,OAAA,yCAAAkB,GAAA,IACAQ,KAAAC,QAAAT,EACA,MAAAQ,OAKAP,QAAA/B,KAAAmB,QAAAU,KAEA,IAAAW,YAAAT,SACA,MAAA,MAEA,IAAAU,WAAAV,SAAA,CACA,OAAAM,UAAArB,QAEA,IAAA,GACAe,QAAAhB,KAAAf,KACA,MACA,KAAA,GACA+B,QAAAhB,KAAAf,KAAAqC,UAAA,GACA,MACA,KAAA,GACAN,QAAAhB,KAAAf,KAAAqC,UAAA,GAAAA,UAAA,GACA,MAEA,SACAJ,KAAAS,MAAApB,UAAAqB,MAAA5B,KAAAsB,UAAA,EACAN,SAAAa,MAAA5C,KAAAiC,WAEA,IAAAG,SAAAL,SAAA,CACAE,KAAAS,MAAApB,UAAAqB,MAAA5B,KAAAsB,UAAA,EACAH,WAAAH,QAAAY,OACAX,KAAAE,UAAAlB,MACA,KAAAL,EAAA,EAAAA,EAAAqB,IAAArB,IACAuB,UAAAvB,GAAAiC,MAAA5C,KAAAiC,MAGA,MAAA,MAGAf,cAAAI,UAAAuB,YAAA,SAAAhB,KAAAiB,UACA,GAAAC,EAEA,KAAAN,WAAAK,UACA,KAAAnB,WAAA,8BAEA,KAAA3B,KAAAmB,QACAnB,KAAAmB,UAIA,IAAAnB,KAAAmB,QAAA6B,YACAhD,KAAA4B,KAAA,cAAAC,KACAY,WAAAK,SAAAA,UACAA,SAAAA,SAAAA,SAEA,KAAA9C,KAAAmB,QAAAU,MAEA7B,KAAAmB,QAAAU,MAAAiB,aACA,IAAAV,SAAApC,KAAAmB,QAAAU,OAEA7B,KAAAmB,QAAAU,MAAAoB,KAAAH,cAGA9C,MAAAmB,QAAAU,OAAA7B,KAAAmB,QAAAU,MAAAiB,SAGA,IAAAV,SAAApC,KAAAmB,QAAAU,SAAA7B,KAAAmB,QAAAU,MAAAqB,OAAA,CACA,IAAAV,YAAAxC,KAAAoB,eAAA,CACA2B,EAAA/C,KAAAoB,kBACA,CACA2B,EAAA7B,aAAAK,oBAGA,GAAAwB,GAAAA,EAAA,GAAA/C,KAAAmB,QAAAU,MAAAb,OAAA+B,EAAA,CACA/C,KAAAmB,QAAAU,MAAAqB,OAAA,IACAC,SAAAhB,MAAA,gDACA,sCACA,mDACAnC,KAAAmB,QAAAU,MAAAb,OACA,UAAAmC,SAAAC,QAAA,WAAA,CAEAD,QAAAC,UAKA,MAAApD,MAGAkB,cAAAI,UAAA+B,GAAAnC,aAAAI,UAAAuB,WAEA3B,cAAAI,UAAAgC,KAAA,SAAAzB,KAAAiB,UACA,IAAAL,WAAAK,UACA,KAAAnB,WAAA,8BAEA,IAAA4B,OAAA,KAEA,SAAA3D,KACAI,KAAAwD,eAAA3B,KAAAjC,EAEA,KAAA2D,MAAA,CACAA,MAAA,IACAT,UAAAF,MAAA5C,KAAAqC,YAIAzC,EAAAkD,SAAAA,QACA9C,MAAAqD,GAAAxB,KAAAjC,EAEA,OAAAI,MAIAkB,cAAAI,UAAAkC,eAAA,SAAA3B,KAAAiB,UACA,GAAAW,MAAAC,SAAA1C,OAAAL,CAEA,KAAA8B,WAAAK,UACA,KAAAnB,WAAA,8BAEA,KAAA3B,KAAAmB,UAAAnB,KAAAmB,QAAAU,MACA,MAAA7B,KAEAyD,MAAAzD,KAAAmB,QAAAU,KACAb,QAAAyC,KAAAzC,MACA0C,WAAA,CAEA,IAAAD,OAAAX,UACAL,WAAAgB,KAAAX,WAAAW,KAAAX,WAAAA,SAAA,OACA9C,MAAAmB,QAAAU,KACA,IAAA7B,KAAAmB,QAAAqC,eACAxD,KAAA4B,KAAA,iBAAAC,KAAAiB,cAEA,IAAAV,SAAAqB,MAAA,CACA,IAAA9C,EAAAK,OAAAL,KAAA,GAAA,CACA,GAAA8C,KAAA9C,KAAAmC,UACAW,KAAA9C,GAAAmC,UAAAW,KAAA9C,GAAAmC,WAAAA,SAAA,CACAY,SAAA/C,CACA,QAIA,GAAA+C,SAAA,EACA,MAAA1D,KAEA,IAAAyD,KAAAzC,SAAA,EAAA,CACAyC,KAAAzC,OAAA,QACAhB,MAAAmB,QAAAU,UACA,CACA4B,KAAAE,OAAAD,SAAA,GAGA,GAAA1D,KAAAmB,QAAAqC,eACAxD,KAAA4B,KAAA,iBAAAC,KAAAiB,UAGA,MAAA9C,MAGAkB,cAAAI,UAAAsC,mBAAA,SAAA/B,MACA,GAAAgC,KAAA3B,SAEA,KAAAlC,KAAAmB,QACA,MAAAnB,KAGA,KAAAA,KAAAmB,QAAAqC,eAAA,CACA,GAAAnB,UAAArB,SAAA,EACAhB,KAAAmB,eACA,IAAAnB,KAAAmB,QAAAU,YACA7B,MAAAmB,QAAAU,KACA,OAAA7B,MAIA,GAAAqC,UAAArB,SAAA,EAAA,CACA,IAAA6C,MAAA7D,MAAAmB,QAAA,CACA,GAAA0C,MAAA,iBAAA,QACA7D,MAAA4D,mBAAAC,KAEA7D,KAAA4D,mBAAA,iBACA5D,MAAAmB,UACA,OAAAnB,MAGAkC,UAAAlC,KAAAmB,QAAAU,KAEA,IAAAY,WAAAP,WAAA,CACAlC,KAAAwD,eAAA3B,KAAAK,eACA,IAAAA,UAAA,CAEA,MAAAA,UAAAlB,OACAhB,KAAAwD,eAAA3B,KAAAK,UAAAA,UAAAlB,OAAA,UAEAhB,MAAAmB,QAAAU,KAEA,OAAA7B,MAGAkB,cAAAI,UAAAY,UAAA,SAAAL,MACA,GAAAiC,IACA,KAAA9D,KAAAmB,UAAAnB,KAAAmB,QAAAU,MACAiC,WACA,IAAArB,WAAAzC,KAAAmB,QAAAU,OACAiC,KAAA9D,KAAAmB,QAAAU,WAEAiC,KAAA9D,KAAAmB,QAAAU,MAAAc,OACA,OAAAmB,KAGA5C,cAAAI,UAAAyC,cAAA,SAAAlC,MACA,GAAA7B,KAAAmB,QAAA,CACA,GAAA6C,YAAAhE,KAAAmB,QAAAU,KAEA,IAAAY,WAAAuB,YACA,MAAA,OACA,IAAAA,WACA,MAAAA,YAAAhD,OAEA,MAAA,GAGAE,cAAA6C,cAAA,SAAAE,QAAApC,MACA,MAAAoC,SAAAF,cAAAlC,MAGA,SAAAY,YAAAyB,KACA,aAAAA,OAAA,WAGA,QAAAzC,UAAAyC,KACA,aAAAA,OAAA,SAGA,QAAA9B,UAAA8B,KACA,aAAAA,OAAA,UAAAA,MAAA,KAGA,QAAA1B,aAAA0B,KACA,MAAAA,WAAA,6CC5SA,GAAAC,IAAAC,QAAAC,KAAAC,SAAAC,EAEAA,IAAKC,UAAUC,UAAUC,aACzBJ,UAAWE,UAAUF,SAASI,aAC9BP,IAAKI,GAAGI,MAAM,iGAAmG,KAAM,UAAW,EAClIN,MAAOF,GAAG,KAAM,MAAQS,SAASC,YAEjCT,UACEU,KAASX,GAAG,KAAM,UAAeA,GAAG,GAAQA,GAAG,GAC/CY,QAASV,MAAQW,WAAcb,GAAG,KAAM,SAAWA,GAAG,GAAQA,GAAG,GAAQA,GAAG,IAE5EG,UACEQ,KAASP,GAAGI,MAAM,oBAAyB,OAAYJ,GAAGI,MAAM,sBAAwBL,SAASK,MAAM,mBAAqB,UAAU,IAE1IP,SAAQA,QAAQU,MAAQ,IACxBV,SAAQA,QAAQU,KAAOG,SAASb,QAAQW,QAAS,KAAO,IACxDX,SAAQE,SAASF,QAAQE,SAASQ,MAAQ,IAE1CrF,QAAOD,QAAU4E,iDClBjB,GAAAlD,cAAAjB,IAAAmE,QAAAc,OAAA,SAAAC,MAAAC,QAAA,IAAA,GAAAvB,OAAAuB,QAAA,CAAA,GAAAC,QAAAtE,KAAAqE,OAAAvB,KAAAsB,MAAAtB,KAAAuB,OAAAvB,KAAA,QAAAyB,QAAAtF,KAAAuF,YAAAJ,MAAAG,KAAAhE,UAAA8D,OAAA9D,SAAA6D,OAAA7D,UAAA,GAAAgE,KAAAH,OAAAK,UAAAJ,OAAA9D,SAAA,OAAA6D,sKAACjE,cAAgBR,QAAQ,UAARQ,YACjBkD,SAAU1D,QAAQ,mBAEZT,KAAA,SAAAwF,YAEJ,GAAAC,UAAAC,oCAAAD,WACEE,aAAc,gBACdC,QAAS,EACTC,OAAQ,EACRC,WAAY,OACZC,QAAS,GACTC,MAAO,KACPC,OAAQ,KACRC,YAAa,KACbC,MAAO,MACPC,OAAQ,MAEVV,gBACEW,MAAO,IACPC,KAAM,MAEK,SAAAtG,KAACuG,SACZ,GAAAC,MAAA5C,IAAA6C,KAAA1G,MAAC2G,QAAU,KAEX3G,MAACwG,UACDxG,MAAC4G,SAED5G,MAAC6G,cACD7G,MAAC8G,gBAED9G,MAAC+G,WAAWP,QACZ,KAAA3C,MAAA6B,UAAA,6DACW7B,KAAQ6C,sBAErBM,UAAW,SAACnD,IAAK6C,OACf1G,KAACwG,QAAQ3C,KAAO6C,KAChB,IAAG1G,KAAAiH,SAAA,OAAcpD,MAAQ,SAARA,MAAiB,UAAlC,OACE7D,MAACiH,QAAQpD,KAAO6C,sBAEpBK,WAAY,SAACP,SACX,GAAA3C,KAAAqD,QAAAR,KAAAQ,gBAAArD,MAAA2C,SAAA,wEAAAxG,KAACgH,UAAUnD,IAAK6C,sCAElBS,SAAU,SAACC,MAAOZ,SAChB,GAAAa,OAAAxD,sBADgB2C,WAChBa,QACAA,OAAMlB,YAAcnG,KAACwG,QAAQL,WAC7B,KAAAtC,MAAA8B,eAAA,CACE0B,MAAMxD,KAAO2C,QAAQ3C,MAAQ8B,cAAc9B,KAG7C,GAAuC7D,KAAAwG,QAAAP,OAAA,KAAvC,CAAAjG,KAACgH,UAAU,QAASI,MAAMnB,OAC1B,GAAyCjG,KAAAwG,QAAAN,QAAA,KAAzC,CAAAlG,KAACgH,UAAU,SAAUI,MAAMlB,QAE3B,SAAGoB,aAAA,aAAAA,YAAA,MAAeF,gBAAiBE,WAAnC,CACGD,MAAME,KAAOH,MAAMG,SACjB,UAAIC,4BAAA,aAAAA,2BAAA,MAA8BJ,gBAAiBI,iCAA8BC,yBAAA,aAAAA,wBAAA,MAA2BL,gBAAiBK,uBAA7H,CACH,GAAGjB,QAAQD,KAAX,CACEc,MAAME,KAAOvH,KAAC0H,eAAeN,WAD/B,CAGEC,MAAM9E,QAAU6E,WACf,IAAGA,MAAAO,YAAA,KAAH,CACH,GAAGnB,QAAQD,KAAX,CACEc,MAAME,KAAOvH,KAAC4H,aAAaR,WAD7B,CAGEC,MAAMD,MAAQA,WAJb,CAMH,KAAU,IAAAxG,OAAM,uBAElBZ,MAAC4G,OAAO3D,KAAKoE,sBAEfQ,OAAQ,WACN,GAAAlH,GAAAmH,EAAAC,WAAAC,GAAA,IAAqChI,KAAC2G,QAAtC,CAAA,KAAU,IAAA/F,OAAM,mBAEhB,GAAOZ,KAAAwG,QAAAP,OAAA,MAAuBjG,KAAAwG,QAAAN,QAAA,KAA9B,CACE,KAAU,IAAAtF,OAAM,mDAElBZ,KAAC2G,QAAU,IACX3G,MAACiI,UAAY,CACbjI,MAACkI,eAAiB,CAElBlI,MAACmI,WAAD,4BAAejB,gBAAcvG,EAAAmH,EAAA,EAAAE,IAAAhI,KAAA4G,OAAA5F,OAAA,GAAAgH,IAAAF,EAAAE,IAAAF,EAAAE,IAAArH,EAAA,GAAAqH,MAAAF,IAAAA,EAAd,cAAA,gCACfC,YAAa/H,KAACoI,cAEd,IAAGpI,KAACwG,QAAQ6B,gBAAiB,KAA7B,CACErI,KAACsI,sBADH,CAGE,IAA4B3H,EAAAmH,EAAA,EAAAE,IAAAD,WAAA,GAAAC,IAAAF,EAAAE,IAAAF,EAAAE,IAAArH,EAAA,GAAAqH,MAAAF,IAAAA,EAA5B,CAAA9H,KAACsI,mBAEHtI,KAAC4B,KAAK,eACN5B,MAAC4B,KAAK,WAAY,kBAEpB2G,MAAO,WACL,GAAAC,OAAA,OAAA,KAAA,CACEA,OAASxI,KAAC8G,cAAc2B,OACxB,IAAaD,QAAA,KAAb,CAAA,MACAxI,KAAC0I,IAAI,wBACLF,QAAOG,YACT3I,KAAC2G,QAAU,YACX3G,MAAC4B,KAAK,wBAIRwG,aAAc,WACZ,GAAAN,GAAAC,WAAAC,IAAAd,OAAAa,YAAaa,KAAKC,IAAI7I,KAACwG,QAAQX,QAAS7F,KAAC4G,OAAO5F,SAChD,4KAAmC8H,QAAQ,SAAAC,aAAA,UAACpI,GAC1C,GAAA6H,OAAAO,OAACL,IAAI,mBAAoB/H,EACzB6H,QAAa,GAAAQ,QAAOD,MAACvC,QAAQZ,aAC7B4C,QAAOS,UAAY,SAACC,OAClBH,MAACjC,cAAcnD,OAAOoF,MAACjC,cAAcqC,QAAQX,QAAS,EACtDO,OAAClC,YAAY5D,KAAKuF,cAClBO,OAACK,cAAcF,MAAM3B,aACvBwB,OAAClC,YAAY5D,KAAKuF,UAPuBxI,MAQ3C,OAAO+H,2BAETqB,cAAe,SAAC/B,OACd,GAAA1G,GAAAmH,EAAAE,GAAAhI,MAAC0I,IAAI,SAAUrB,MAAMgC,MAAO,eAAerJ,KAAC8G,cAAc9F,OAAQ,UAClEhB,MAACkI,gBACDlI,MAAC4B,KAAK,WAAY5B,KAACkI,eAAiBlI,KAAC4G,OAAO5F,OAC5ChB,MAACmI,WAAWd,MAAMgC,OAAShC,KAE3B,IAAGrH,KAACwG,QAAQ6B,gBAAiB,KAA7B,CACErI,KAACwG,QAAQ6B,cAAgBhB,MAAMgB,aAC/BrI,MAAC0I,IAAI,0BACL,IAAyD1I,KAAC4G,OAAO5F,OAAS,EAA1E,CAAA,IAA4BL,EAAAmH,EAAA,EAAAE,IAAAhI,KAAA6G,YAAA7F,OAAA,GAAAgH,IAAAF,EAAAE,IAAAF,EAAAE,IAAArH,EAAA,GAAAqH,MAAAF,IAAAA,EAA5B,CAAA9H,KAACsI,oBACH,GAAGa,QAAApI,KAAQf,KAACmI,WAAT,OAAA,EAAH,OACEnI,MAACsI,sBADH,OAGEtI,MAACsJ,kCAELA,gBAAiB,WACf,GAAA/B,MAAAF,MAAA1G,EAAAyG,MAAAU,EAAAyB,EAAAzI,EAAAkB,IAAAwH,KAAAC,KAAAC,KAAAC,OAAAC,KAAA5B,IAAA6B,KAAAC,IAAA9H,KAAM,CACNgG,KAAAhI,KAAAmI,UAAA,KAAAL,EAAA,EAAA0B,KAAAxB,IAAAhH,OAAA8G,EAAA0B,KAAA1B,IAAA,aACE9F,OAAQqF,MAAME,KAAKvG,OAAS,GAAKqG,MAAM0C,SAAW1C,MAAM2C,OAC1DhI,KAAOqF,MAAM0C,SAAW1C,MAAM2C,MAC9BhK,MAAC0I,IAAI,iCAAkCE,KAAKqB,MAAMjI,IAAM,KAAO,KAC/DuF,MAAW,GAAA2C,YAAWlI,IACtB2H,QAAS,CACTE,MAAA7J,KAAAmI,UAAA,KAAAoB,EAAA,EAAAE,KAAAI,KAAA7I,OAAAuI,EAAAE,KAAAF,IAAA,cACEO,MAAAzC,MAAAE,IAAA,KAAA5G,EAAAG,EAAA,EAAA4I,KAAAI,KAAA9I,OAAAF,EAAA4I,KAAA/I,IAAAG,EAAA,aACEyG,MAAK4C,IAAIP,KAAMD,OACf,IAAGhJ,IAAK0G,MAAME,KAAKvG,OAAS,EAA5B,CACE2I,QAAUtC,MAAM2C,WADlB,CAGEL,QAAUtC,MAAM0C,WAEtB3C,MAAY,GAAAgD,OAAM7C,OAChB1F,KAAM,oBAER7B,MAAC4B,KAAK,WAAYwF,MAAOG,qBAE3Be,gBAAiB,WACf,GAAAjB,OAAAgD,KAAA7B,MAAA,IAAqCxI,KAAC6G,YAAY7F,SAAU,EAA5D,CAAA,KAAU,IAAAJ,OAAM,mBAChB,GAAUZ,KAACiI,WAAajI,KAAC4G,OAAO5F,OAAhC,CAAA,OAEAqG,MAAQrH,KAAC4G,OAAO5G,KAACiI,YACjBO,QAASxI,KAAC6G,YAAY4B,OACtB4B,MAAOrK,KAACsK,QAAQjD,MAEhBrH,MAAC0I,IAAI,mBAAmB2B,KAAKhB,MAAQ,GAAG,OAAOrJ,KAAC4G,OAAO5F,OACvDhB,MAAC8G,cAAc7D,KAAKuF,cACpBA,QAAO+B,YAAYF,qBAErB3C,eAAgB,SAAC8C,KACf,MAAOA,KAAI5C,aAAa,EAAG,EAAG5H,KAACwG,QAAQP,MAAOjG,KAACwG,QAAQN,QAAQqB,oBAEjEK,aAAc,SAACR,OACb,GAAAoD,IAAA,IAAOxK,KAAAiH,SAAA,KAAP,CACEjH,KAACiH,QAAUrC,SAAS6F,cAAc,SAClCzK,MAACiH,QAAQhB,MAAQjG,KAACwG,QAAQP,KAC1BjG,MAACiH,QAAQf,OAASlG,KAACwG,QAAQN,OAE7BsE,IAAMxK,KAACiH,QAAQyD,WAAW,KAC1BF,KAAIG,QAAU3K,KAACwG,QAAQT,UACvByE,KAAII,SAAS,EAAG,EAAG5K,KAACwG,QAAQP,MAAOjG,KAACwG,QAAQN,OAC5CsE,KAAIK,UAAUzD,MAAO,EAAG,EAExB,OAAOpH,MAAC0H,eAAe8C,oBAEzBF,QAAS,SAACjD,OACR,GAAAgC,OAAAgB,IAAAhB,OAAQrJ,KAAC4G,OAAOuC,QAAQ9B,MACxBgD,OACEhB,MAAOA,MACPyB,KAAMzB,QAAUrJ,KAAC4G,OAAO5F,OAAS,EACjCsF,MAAOe,MAAMf,MACbH,YAAakB,MAAMlB,YACnBF,MAAOjG,KAACwG,QAAQP,MAChBC,OAAQlG,KAACwG,QAAQN,OACjBF,QAAShG,KAACwG,QAAQR,QAClBK,OAAQrG,KAACwG,QAAQH,OACjBgC,cAAerI,KAACwG,QAAQ6B,cACxBvC,OAAQ9F,KAACwG,QAAQV,OACjBiF,YAAc3G,QAAQU,OAAQ,SAEhC,IAAGuC,MAAAE,MAAA,KAAH,CACE8C,KAAK9C,KAAOF,MAAME,SACf,IAAGF,MAAA9E,SAAA,KAAH,CACH8H,KAAK9C,KAAOvH,KAAC0H,eAAeL,MAAM9E,aAC/B,IAAG8E,MAAAD,OAAA,KAAH,CACHiD,KAAK9C,KAAOvH,KAAC4H,aAAaP,MAAMD,WAD7B,CAGH,KAAU,IAAAxG,OAAM,iBAElB,MAAOyJ,qBAET3B,IAAK,WACH,GAAAzG,KADIA,MAAA,GAAAI,UAAArB,OAAA2B,MAAA5B,KAAAsB,UAAA,KACJ,KAAcrC,KAACwG,QAAQJ,MAAvB,CAAA,aACAjD,SAAQuF,IAAR9F,MAAAO,QAAYlB,mBA1MEf,aA6MlBzB,QAAOD,QAAUS","sourceRoot":"","sourcesContent":["(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o 0 && this._events[type].length > m) {\n this._events[type].warned = true;\n console.error('(node) warning: possible EventEmitter memory ' +\n 'leak detected. %d listeners added. ' +\n 'Use emitter.setMaxListeners() to increase limit.',\n this._events[type].length);\n if (typeof console.trace === 'function') {\n // not supported in IE 10\n console.trace();\n }\n }\n }\n\n return this;\n};\n\nEventEmitter.prototype.on = EventEmitter.prototype.addListener;\n\nEventEmitter.prototype.once = function(type, listener) {\n if (!isFunction(listener))\n throw TypeError('listener must be a function');\n\n var fired = false;\n\n function g() {\n this.removeListener(type, g);\n\n if (!fired) {\n fired = true;\n listener.apply(this, arguments);\n }\n }\n\n g.listener = listener;\n this.on(type, g);\n\n return this;\n};\n\n// emits a 'removeListener' event iff the listener was removed\nEventEmitter.prototype.removeListener = function(type, listener) {\n var list, position, length, i;\n\n if (!isFunction(listener))\n throw TypeError('listener must be a function');\n\n if (!this._events || !this._events[type])\n return this;\n\n list = this._events[type];\n length = list.length;\n position = -1;\n\n if (list === listener ||\n (isFunction(list.listener) && list.listener === listener)) {\n delete this._events[type];\n if (this._events.removeListener)\n this.emit('removeListener', type, listener);\n\n } else if (isObject(list)) {\n for (i = length; i-- > 0;) {\n if (list[i] === listener ||\n (list[i].listener && list[i].listener === listener)) {\n position = i;\n break;\n }\n }\n\n if (position < 0)\n return this;\n\n if (list.length === 1) {\n list.length = 0;\n delete this._events[type];\n } else {\n list.splice(position, 1);\n }\n\n if (this._events.removeListener)\n this.emit('removeListener', type, listener);\n }\n\n return this;\n};\n\nEventEmitter.prototype.removeAllListeners = function(type) {\n var key, listeners;\n\n if (!this._events)\n return this;\n\n // not listening for removeListener, no need to emit\n if (!this._events.removeListener) {\n if (arguments.length === 0)\n this._events = {};\n else if (this._events[type])\n delete this._events[type];\n return this;\n }\n\n // emit removeListener for all listeners on all events\n if (arguments.length === 0) {\n for (key in this._events) {\n if (key === 'removeListener') continue;\n this.removeAllListeners(key);\n }\n this.removeAllListeners('removeListener');\n this._events = {};\n return this;\n }\n\n listeners = this._events[type];\n\n if (isFunction(listeners)) {\n this.removeListener(type, listeners);\n } else if (listeners) {\n // LIFO order\n while (listeners.length)\n this.removeListener(type, listeners[listeners.length - 1]);\n }\n delete this._events[type];\n\n return this;\n};\n\nEventEmitter.prototype.listeners = function(type) {\n var ret;\n if (!this._events || !this._events[type])\n ret = [];\n else if (isFunction(this._events[type]))\n ret = [this._events[type]];\n else\n ret = this._events[type].slice();\n return ret;\n};\n\nEventEmitter.prototype.listenerCount = function(type) {\n if (this._events) {\n var evlistener = this._events[type];\n\n if (isFunction(evlistener))\n return 1;\n else if (evlistener)\n return evlistener.length;\n }\n return 0;\n};\n\nEventEmitter.listenerCount = function(emitter, type) {\n return emitter.listenerCount(type);\n};\n\nfunction isFunction(arg) {\n return typeof arg === 'function';\n}\n\nfunction isNumber(arg) {\n return typeof arg === 'number';\n}\n\nfunction isObject(arg) {\n return typeof arg === 'object' && arg !== null;\n}\n\nfunction isUndefined(arg) {\n return arg === void 0;\n}\n","### CoffeeScript version of the browser detection from MooTools ###\n\nua = navigator.userAgent.toLowerCase()\nplatform = navigator.platform.toLowerCase()\nUA = ua.match(/(opera|ie|firefox|chrome|version)[\\s\\/:]([\\w\\d\\.]+)?.*?(safari|version[\\s\\/:]([\\w\\d\\.]+)|$)/) or [null, 'unknown', 0]\nmode = UA[1] == 'ie' && document.documentMode\n\nbrowser =\n name: if UA[1] is 'version' then UA[3] else UA[1]\n version: mode or parseFloat(if UA[1] is 'opera' && UA[4] then UA[4] else UA[2])\n\n platform:\n name: if ua.match(/ip(?:ad|od|hone)/) then 'ios' else (ua.match(/(?:webos|android)/) or platform.match(/mac|win|linux/) or ['other'])[0]\n\nbrowser[browser.name] = true\nbrowser[browser.name + parseInt(browser.version, 10)] = true\nbrowser.platform[browser.platform.name] = true\n\nmodule.exports = browser\n","{EventEmitter} = require 'events'\nbrowser = require './browser.coffee'\n\nclass GIF extends EventEmitter\n\n defaults =\n workerScript: 'gif.worker.js'\n workers: 2\n repeat: 0 # repeat forever, -1 = repeat once\n background: '#fff'\n quality: 10 # pixel sample interval, lower is better\n width: null # size derermined from first frame if possible\n height: null\n transparent: null\n debug: false\n dither: false # see GIFEncoder.js for dithering options\n\n frameDefaults =\n delay: 500 # ms\n copy: false\n\n constructor: (options) ->\n @running = false\n\n @options = {}\n @frames = []\n\n @freeWorkers = []\n @activeWorkers = []\n\n @setOptions options\n for key, value of defaults\n @options[key] ?= value\n\n setOption: (key, value) ->\n @options[key] = value\n if @_canvas? and key in ['width', 'height']\n @_canvas[key] = value\n\n setOptions: (options) ->\n @setOption key, value for own key, value of options\n\n addFrame: (image, options={}) ->\n frame = {}\n frame.transparent = @options.transparent\n for key of frameDefaults\n frame[key] = options[key] or frameDefaults[key]\n\n # use the images width and height for options unless already set\n @setOption 'width', image.width unless @options.width?\n @setOption 'height', image.height unless @options.height?\n\n if ImageData? and image instanceof ImageData\n frame.data = image.data\n else if (CanvasRenderingContext2D? and image instanceof CanvasRenderingContext2D) or (WebGLRenderingContext? and image instanceof WebGLRenderingContext)\n if options.copy\n frame.data = @getContextData image\n else\n frame.context = image\n else if image.childNodes?\n if options.copy\n frame.data = @getImageData image\n else\n frame.image = image\n else\n throw new Error 'Invalid image'\n\n @frames.push frame\n\n render: ->\n throw new Error 'Already running' if @running\n\n if not @options.width? or not @options.height?\n throw new Error 'Width and height must be set prior to rendering'\n\n @running = true\n @nextFrame = 0\n @finishedFrames = 0\n\n @imageParts = (null for i in [0...@frames.length])\n numWorkers = @spawnWorkers()\n # we need to wait for the palette\n if @options.globalPalette == true\n @renderNextFrame()\n else\n @renderNextFrame() for i in [0...numWorkers]\n\n @emit 'start'\n @emit 'progress', 0\n\n abort: ->\n loop\n worker = @activeWorkers.shift()\n break unless worker?\n @log 'killing active worker'\n worker.terminate()\n @running = false\n @emit 'abort'\n\n # private\n\n spawnWorkers: ->\n numWorkers = Math.min(@options.workers, @frames.length)\n [@freeWorkers.length...numWorkers].forEach (i) =>\n @log \"spawning worker #{ i }\"\n worker = new Worker @options.workerScript\n worker.onmessage = (event) =>\n @activeWorkers.splice @activeWorkers.indexOf(worker), 1\n @freeWorkers.push worker\n @frameFinished event.data\n @freeWorkers.push worker\n return numWorkers\n\n frameFinished: (frame) ->\n @log \"frame #{ frame.index } finished - #{ @activeWorkers.length } active\"\n @finishedFrames++\n @emit 'progress', @finishedFrames / @frames.length\n @imageParts[frame.index] = frame\n # remember calculated palette, spawn the rest of the workers\n if @options.globalPalette == true\n @options.globalPalette = frame.globalPalette\n @log 'global palette analyzed'\n @renderNextFrame() for i in [1...@freeWorkers.length] if @frames.length > 2\n if null in @imageParts\n @renderNextFrame()\n else\n @finishRendering()\n\n finishRendering: ->\n len = 0\n for frame in @imageParts\n len += (frame.data.length - 1) * frame.pageSize + frame.cursor\n len += frame.pageSize - frame.cursor\n @log \"rendering finished - filesize #{ Math.round(len / 1000) }kb\"\n data = new Uint8Array len\n offset = 0\n for frame in @imageParts\n for page, i in frame.data\n data.set page, offset\n if i is frame.data.length - 1\n offset += frame.cursor\n else\n offset += frame.pageSize\n\n image = new Blob [data],\n type: 'image/gif'\n\n @emit 'finished', image, data\n\n renderNextFrame: ->\n throw new Error 'No free workers' if @freeWorkers.length is 0\n return if @nextFrame >= @frames.length # no new frame to render\n\n frame = @frames[@nextFrame++]\n worker = @freeWorkers.shift()\n task = @getTask frame\n\n @log \"starting frame #{ task.index + 1 } of #{ @frames.length }\"\n @activeWorkers.push worker\n worker.postMessage task#, [task.data.buffer]\n\n getContextData: (ctx) ->\n return ctx.getImageData(0, 0, @options.width, @options.height).data\n\n getImageData: (image) ->\n if not @_canvas?\n @_canvas = document.createElement 'canvas'\n @_canvas.width = @options.width\n @_canvas.height = @options.height\n\n ctx = @_canvas.getContext '2d'\n ctx.setFill = @options.background\n ctx.fillRect 0, 0, @options.width, @options.height\n ctx.drawImage image, 0, 0\n\n return @getContextData ctx\n\n getTask: (frame) ->\n index = @frames.indexOf frame\n task =\n index: index\n last: index is (@frames.length - 1)\n delay: frame.delay\n transparent: frame.transparent\n width: @options.width\n height: @options.height\n quality: @options.quality\n dither: @options.dither\n globalPalette: @options.globalPalette\n repeat: @options.repeat\n canTransfer: (browser.name is 'chrome')\n\n if frame.data?\n task.data = frame.data\n else if frame.context?\n task.data = @getContextData frame.context\n else if frame.image?\n task.data = @getImageData frame.image\n else\n throw new Error 'Invalid frame'\n\n return task\n\n log: (args...) ->\n return unless @options.debug\n console.log args...\n\n\nmodule.exports = GIF\n"]} \ No newline at end of file +{"version":3,"sources":["node_modules/.6.0.2@browser-pack/_prelude.js","node_modules/.1.1.1@events/events.js","src/browser.coffee","src/gif.coffee"],"names":["f","exports","module","define","amd","g","window","global","self","this","GIF","e","t","n","r","s","o","u","a","require","i","Error","code","l","call","length","1","EventEmitter","_events","_maxListeners","undefined","prototype","defaultMaxListeners","setMaxListeners","isNumber","isNaN","TypeError","emit","type","er","handler","len","args","listeners","error","isObject","arguments","err","context","isUndefined","isFunction","Array","slice","apply","addListener","listener","m","newListener","push","warned","console","trace","on","once","fired","removeListener","list","position","splice","removeAllListeners","key","ret","listenerCount","evlistener","emitter","arg","UA","browser","mode","platform","ua","navigator","userAgent","toLowerCase","match","document","documentMode","name","version","parseFloat","parseInt","extend","child","parent","hasProp","ctor","constructor","__super__","superClass","defaults","frameDefaults","workerScript","workers","repeat","background","quality","width","height","transparent","debug","dither","delay","copy","dispose","options","base","value","running","frames","freeWorkers","activeWorkers","setOptions","setOption","_canvas","results","addFrame","image","frame","ImageData","data","CanvasRenderingContext2D","WebGLRenderingContext","getContextData","childNodes","getImageData","render","j","numWorkers","ref","nextFrame","finishedFrames","imageParts","spawnWorkers","globalPalette","renderNextFrame","abort","worker","shift","log","terminate","Math","min","forEach","_this","Worker","onmessage","event","indexOf","frameFinished","index","finishRendering","k","len1","len2","len3","offset","page","ref1","ref2","pageSize","cursor","round","Uint8Array","set","Blob","task","getTask","postMessage","ctx","createElement","getContext","clearRect","fillStyle","fillRect","putImageData","drawImage","getBgImageData","bg_canvas","bg_ctx","last","canTransfer","bg_data"],"mappings":";CAAA,SAAAA,GAAA,SAAAC,WAAA,gBAAAC,UAAA,YAAA,CAAAA,OAAAD,QAAAD,QAAA,UAAAG,UAAA,YAAAA,OAAAC,IAAA,CAAAD,UAAAH,OAAA,CAAA,GAAAK,EAAA,UAAAC,UAAA,YAAA,CAAAD,EAAAC,WAAA,UAAAC,UAAA,YAAA,CAAAF,EAAAE,WAAA,UAAAC,QAAA,YAAA,CAAAH,EAAAG,SAAA,CAAAH,EAAAI,KAAAJ,EAAAK,IAAAV,OAAA,WAAA,GAAAG,QAAAD,OAAAD,OAAA,OAAA,SAAAU,GAAAC,EAAAC,EAAAC,GAAA,QAAAC,GAAAC,EAAAC,GAAA,IAAAJ,EAAAG,GAAA,CAAA,IAAAJ,EAAAI,GAAA,CAAA,GAAAE,SAAAC,UAAA,YAAAA,OAAA,KAAAF,GAAAC,EAAA,MAAAA,GAAAF,GAAA,EAAA,IAAAI,EAAA,MAAAA,GAAAJ,GAAA,EAAA,IAAAhB,GAAA,GAAAqB,OAAA,uBAAAL,EAAA,IAAA,MAAAhB,GAAAsB,KAAA,mBAAAtB,EAAA,GAAAuB,GAAAV,EAAAG,IAAAf,WAAAW,GAAAI,GAAA,GAAAQ,KAAAD,EAAAtB,QAAA,SAAAU,GAAA,GAAAE,GAAAD,EAAAI,GAAA,GAAAL,EAAA,OAAAI,GAAAF,EAAAA,EAAAF,IAAAY,EAAAA,EAAAtB,QAAAU,EAAAC,EAAAC,EAAAC,GAAA,MAAAD,GAAAG,GAAAf,QAAA,GAAAmB,SAAAD,UAAA,YAAAA,OAAA,KAAA,GAAAH,GAAA,EAAAA,EAAAF,EAAAW,OAAAT,IAAAD,EAAAD,EAAAE,GAAA,OAAAD,KAAAW,GAAA,SAAAP,QAAAjB,OAAAD,SCqBA,QAAA0B,gBACAlB,KAAAmB,QAAAnB,KAAAmB,WACAnB,MAAAoB,cAAApB,KAAAoB,eAAAC,UAEA5B,OAAAD,QAAA0B,YAGAA,cAAAA,aAAAA,YAEAA,cAAAI,UAAAH,QAAAE,SACAH,cAAAI,UAAAF,cAAAC,SAIAH,cAAAK,oBAAA,EAIAL,cAAAI,UAAAE,gBAAA,SAAApB,GACA,IAAAqB,SAAArB,IAAAA,EAAA,GAAAsB,MAAAtB,GACA,KAAAuB,WAAA,8BACA3B,MAAAoB,cAAAhB,CACA,OAAAJ,MAGAkB,cAAAI,UAAAM,KAAA,SAAAC,MACA,GAAAC,IAAAC,QAAAC,IAAAC,KAAAtB,EAAAuB,SAEA,KAAAlC,KAAAmB,QACAnB,KAAAmB,UAGA,IAAAU,OAAA,QAAA,CACA,IAAA7B,KAAAmB,QAAAgB,OACAC,SAAApC,KAAAmB,QAAAgB,SAAAnC,KAAAmB,QAAAgB,MAAAnB,OAAA,CACAc,GAAAO,UAAA,EACA,IAAAP,aAAAlB,OAAA,CACA,KAAAkB,QACA,CAEA,GAAAQ,KAAA,GAAA1B,OAAA,yCAAAkB,GAAA,IACAQ,KAAAC,QAAAT,EACA,MAAAQ,OAKAP,QAAA/B,KAAAmB,QAAAU,KAEA,IAAAW,YAAAT,SACA,MAAA,MAEA,IAAAU,WAAAV,SAAA,CACA,OAAAM,UAAArB,QAEA,IAAA,GACAe,QAAAhB,KAAAf,KACA,MACA,KAAA,GACA+B,QAAAhB,KAAAf,KAAAqC,UAAA,GACA,MACA,KAAA,GACAN,QAAAhB,KAAAf,KAAAqC,UAAA,GAAAA,UAAA,GACA,MAEA,SACAJ,KAAAS,MAAApB,UAAAqB,MAAA5B,KAAAsB,UAAA,EACAN,SAAAa,MAAA5C,KAAAiC,WAEA,IAAAG,SAAAL,SAAA,CACAE,KAAAS,MAAApB,UAAAqB,MAAA5B,KAAAsB,UAAA,EACAH,WAAAH,QAAAY,OACAX,KAAAE,UAAAlB,MACA,KAAAL,EAAA,EAAAA,EAAAqB,IAAArB,IACAuB,UAAAvB,GAAAiC,MAAA5C,KAAAiC,MAGA,MAAA,MAGAf,cAAAI,UAAAuB,YAAA,SAAAhB,KAAAiB,UACA,GAAAC,EAEA,KAAAN,WAAAK,UACA,KAAAnB,WAAA,8BAEA,KAAA3B,KAAAmB,QACAnB,KAAAmB,UAIA,IAAAnB,KAAAmB,QAAA6B,YACAhD,KAAA4B,KAAA,cAAAC,KACAY,WAAAK,SAAAA,UACAA,SAAAA,SAAAA,SAEA,KAAA9C,KAAAmB,QAAAU,MAEA7B,KAAAmB,QAAAU,MAAAiB,aACA,IAAAV,SAAApC,KAAAmB,QAAAU,OAEA7B,KAAAmB,QAAAU,MAAAoB,KAAAH,cAGA9C,MAAAmB,QAAAU,OAAA7B,KAAAmB,QAAAU,MAAAiB,SAGA,IAAAV,SAAApC,KAAAmB,QAAAU,SAAA7B,KAAAmB,QAAAU,MAAAqB,OAAA,CACA,IAAAV,YAAAxC,KAAAoB,eAAA,CACA2B,EAAA/C,KAAAoB,kBACA,CACA2B,EAAA7B,aAAAK,oBAGA,GAAAwB,GAAAA,EAAA,GAAA/C,KAAAmB,QAAAU,MAAAb,OAAA+B,EAAA,CACA/C,KAAAmB,QAAAU,MAAAqB,OAAA,IACAC,SAAAhB,MAAA,gDACA,sCACA,mDACAnC,KAAAmB,QAAAU,MAAAb,OACA,UAAAmC,SAAAC,QAAA,WAAA,CAEAD,QAAAC,UAKA,MAAApD,MAGAkB,cAAAI,UAAA+B,GAAAnC,aAAAI,UAAAuB,WAEA3B,cAAAI,UAAAgC,KAAA,SAAAzB,KAAAiB,UACA,IAAAL,WAAAK,UACA,KAAAnB,WAAA,8BAEA,IAAA4B,OAAA,KAEA,SAAA3D,KACAI,KAAAwD,eAAA3B,KAAAjC,EAEA,KAAA2D,MAAA,CACAA,MAAA,IACAT,UAAAF,MAAA5C,KAAAqC,YAIAzC,EAAAkD,SAAAA,QACA9C,MAAAqD,GAAAxB,KAAAjC,EAEA,OAAAI,MAIAkB,cAAAI,UAAAkC,eAAA,SAAA3B,KAAAiB,UACA,GAAAW,MAAAC,SAAA1C,OAAAL,CAEA,KAAA8B,WAAAK,UACA,KAAAnB,WAAA,8BAEA,KAAA3B,KAAAmB,UAAAnB,KAAAmB,QAAAU,MACA,MAAA7B,KAEAyD,MAAAzD,KAAAmB,QAAAU,KACAb,QAAAyC,KAAAzC,MACA0C,WAAA,CAEA,IAAAD,OAAAX,UACAL,WAAAgB,KAAAX,WAAAW,KAAAX,WAAAA,SAAA,OACA9C,MAAAmB,QAAAU,KACA,IAAA7B,KAAAmB,QAAAqC,eACAxD,KAAA4B,KAAA,iBAAAC,KAAAiB,cAEA,IAAAV,SAAAqB,MAAA,CACA,IAAA9C,EAAAK,OAAAL,KAAA,GAAA,CACA,GAAA8C,KAAA9C,KAAAmC,UACAW,KAAA9C,GAAAmC,UAAAW,KAAA9C,GAAAmC,WAAAA,SAAA,CACAY,SAAA/C,CACA,QAIA,GAAA+C,SAAA,EACA,MAAA1D,KAEA,IAAAyD,KAAAzC,SAAA,EAAA,CACAyC,KAAAzC,OAAA,QACAhB,MAAAmB,QAAAU,UACA,CACA4B,KAAAE,OAAAD,SAAA,GAGA,GAAA1D,KAAAmB,QAAAqC,eACAxD,KAAA4B,KAAA,iBAAAC,KAAAiB,UAGA,MAAA9C,MAGAkB,cAAAI,UAAAsC,mBAAA,SAAA/B,MACA,GAAAgC,KAAA3B,SAEA,KAAAlC,KAAAmB,QACA,MAAAnB,KAGA,KAAAA,KAAAmB,QAAAqC,eAAA,CACA,GAAAnB,UAAArB,SAAA,EACAhB,KAAAmB,eACA,IAAAnB,KAAAmB,QAAAU,YACA7B,MAAAmB,QAAAU,KACA,OAAA7B,MAIA,GAAAqC,UAAArB,SAAA,EAAA,CACA,IAAA6C,MAAA7D,MAAAmB,QAAA,CACA,GAAA0C,MAAA,iBAAA,QACA7D,MAAA4D,mBAAAC,KAEA7D,KAAA4D,mBAAA,iBACA5D,MAAAmB,UACA,OAAAnB,MAGAkC,UAAAlC,KAAAmB,QAAAU,KAEA,IAAAY,WAAAP,WAAA,CACAlC,KAAAwD,eAAA3B,KAAAK,eACA,IAAAA,UAAA,CAEA,MAAAA,UAAAlB,OACAhB,KAAAwD,eAAA3B,KAAAK,UAAAA,UAAAlB,OAAA,UAEAhB,MAAAmB,QAAAU,KAEA,OAAA7B,MAGAkB,cAAAI,UAAAY,UAAA,SAAAL,MACA,GAAAiC,IACA,KAAA9D,KAAAmB,UAAAnB,KAAAmB,QAAAU,MACAiC,WACA,IAAArB,WAAAzC,KAAAmB,QAAAU,OACAiC,KAAA9D,KAAAmB,QAAAU,WAEAiC,KAAA9D,KAAAmB,QAAAU,MAAAc,OACA,OAAAmB,KAGA5C,cAAAI,UAAAyC,cAAA,SAAAlC,MACA,GAAA7B,KAAAmB,QAAA,CACA,GAAA6C,YAAAhE,KAAAmB,QAAAU,KAEA,IAAAY,WAAAuB,YACA,MAAA,OACA,IAAAA,WACA,MAAAA,YAAAhD,OAEA,MAAA,GAGAE,cAAA6C,cAAA,SAAAE,QAAApC,MACA,MAAAoC,SAAAF,cAAAlC,MAGA,SAAAY,YAAAyB,KACA,aAAAA,OAAA,WAGA,QAAAzC,UAAAyC,KACA,aAAAA,OAAA,SAGA,QAAA9B,UAAA8B,KACA,aAAAA,OAAA,UAAAA,MAAA,KAGA,QAAA1B,aAAA0B,KACA,MAAAA,WAAA,6CC5SA,GAAAC,IAAAC,QAAAC,KAAAC,SAAAC,EAEAA,IAAKC,UAAUC,UAAUC,aACzBJ,UAAWE,UAAUF,SAASI,aAC9BP,IAAKI,GAAGI,MAAM,iGAAmG,KAAM,UAAW,EAClIN,MAAOF,GAAG,KAAM,MAAQS,SAASC,YAEjCT,UACEU,KAASX,GAAG,KAAM,UAAeA,GAAG,GAAQA,GAAG,GAC/CY,QAASV,MAAQW,WAAcb,GAAG,KAAM,SAAWA,GAAG,GAAQA,GAAG,GAAQA,GAAG,IAE5EG,UACEQ,KAASP,GAAGI,MAAM,oBAAyB,OAAYJ,GAAGI,MAAM,sBAAwBL,SAASK,MAAM,mBAAqB,UAAU,IAE1IP,SAAQA,QAAQU,MAAQ,IACxBV,SAAQA,QAAQU,KAAOG,SAASb,QAAQW,QAAS,KAAO,IACxDX,SAAQE,SAASF,QAAQE,SAASQ,MAAQ,IAE1CrF,QAAOD,QAAU4E,iDClBjB,GAAAlD,cAAAjB,IAAAmE,QAAAc,OAAA,SAAAC,MAAAC,QAAA,IAAA,GAAAvB,OAAAuB,QAAA,CAAA,GAAAC,QAAAtE,KAAAqE,OAAAvB,KAAAsB,MAAAtB,KAAAuB,OAAAvB,KAAA,QAAAyB,QAAAtF,KAAAuF,YAAAJ,MAAAG,KAAAhE,UAAA8D,OAAA9D,SAAA6D,OAAA7D,UAAA,GAAAgE,KAAAH,OAAAK,UAAAJ,OAAA9D,SAAA,OAAA6D,sKAACjE,cAAgBR,QAAQ,UAARQ,YACjBkD,SAAU1D,QAAQ,mBAEZT,KAAA,SAAAwF,YAEJ,GAAAC,UAAAC,oCAAAD,WACEE,aAAc,gBACdC,QAAS,EACTC,OAAQ,EACRC,WAAY,OACZC,QAAS,GACTC,MAAO,KACPC,OAAQ,KACRC,YAAa,KACbC,MAAO,MACPC,OAAQ,MAEVV,gBACEW,MAAO,IACPC,KAAM,MACNC,SAAU,EAEC,SAAAvG,KAACwG,SACZ,GAAAC,MAAA7C,IAAA8C,KAAA3G,MAAC4G,QAAU,KAEX5G,MAACyG,UACDzG,MAAC6G,SAED7G,MAAC8G,cACD9G,MAAC+G,gBAED/G,MAACgH,WAAWP,QACZ,KAAA5C,MAAA6B,UAAA,6DACW7B,KAAQ8C,sBAErBM,UAAW,SAACpD,IAAK8C,OACf3G,KAACyG,QAAQ5C,KAAO8C,KAChB,IAAG3G,KAAAkH,SAAA,OAAcrD,MAAQ,SAARA,MAAiB,UAAlC,OACE7D,MAACkH,QAAQrD,KAAO8C,sBAEpBK,WAAY,SAACP,SACX,GAAA5C,KAAAsD,QAAAR,KAAAQ,gBAAAtD,MAAA4C,SAAA,wEAAAzG,KAACiH,UAAUpD,IAAK8C,sCAElBS,SAAU,SAACC,MAAOZ,SAChB,GAAAa,OAAAzD,sBADgB4C,WAChBa,QACAA,OAAMnB,YAAcnG,KAACyG,QAAQN,WAC7B,KAAAtC,MAAA8B,eAAA,CACE2B,MAAMzD,KAAO4C,QAAQ5C,MAAQ8B,cAAc9B,KAG7C,GAAuC7D,KAAAyG,QAAAR,OAAA,KAAvC,CAAAjG,KAACiH,UAAU,QAASI,MAAMpB,OAC1B,GAAyCjG,KAAAyG,QAAAP,QAAA,KAAzC,CAAAlG,KAACiH,UAAU,SAAUI,MAAMnB,QAE3B,SAAGqB,aAAA,aAAAA,YAAA,MAAeF,gBAAiBE,WAAnC,CACGD,MAAME,KAAOH,MAAMG,SACjB,UAAIC,4BAAA,aAAAA,2BAAA,MAA8BJ,gBAAiBI,iCAA8BC,yBAAA,aAAAA,wBAAA,MAA2BL,gBAAiBK,uBAA7H,CACH,GAAGjB,QAAQF,KAAX,CACEe,MAAME,KAAOxH,KAAC2H,eAAeN,WAD/B,CAGEC,MAAM/E,QAAU8E,WACf,IAAGA,MAAAO,YAAA,KAAH,CACH,GAAGnB,QAAQF,KAAX,CACEe,MAAME,KAAOxH,KAAC6H,aAAaR,WAD7B,CAGEC,MAAMD,MAAQA,WAJb,CAMH,KAAM,IAAIzG,OAAM,uBAElBZ,MAAC6G,OAAO5D,KAAKqE,sBAEfQ,OAAQ,WACN,GAAAnH,GAAAoH,EAAAC,WAAAC,GAAA,IAAqCjI,KAAC4G,QAAtC,CAAA,KAAM,IAAIhG,OAAM,mBAEhB,GAAOZ,KAAAyG,QAAAR,OAAA,MAAuBjG,KAAAyG,QAAAP,QAAA,KAA9B,CACE,KAAM,IAAItF,OAAM,mDAElBZ,KAAC4G,QAAU,IACX5G,MAACkI,UAAY,CACblI,MAACmI,eAAiB,CAElBnI,MAACoI,WAAD,4BAAejB,gBAAcxG,EAAAoH,EAAA,EAAAE,IAAAjI,KAAA6G,OAAA7F,OAAA,GAAAiH,IAAAF,EAAAE,IAAAF,EAAAE,IAAAtH,EAAA,GAAAsH,MAAAF,IAAAA,EAAd,cAAA,gCACfC,YAAahI,KAACqI,cAEd,IAAGrI,KAACyG,QAAQ6B,gBAAiB,KAA7B,CACEtI,KAACuI,sBADH,CAGE,IAA4B5H,EAAAoH,EAAA,EAAAE,IAAAD,WAAA,GAAAC,IAAAF,EAAAE,IAAAF,EAAAE,IAAAtH,EAAA,GAAAsH,MAAAF,IAAAA,EAA5B,CAAA/H,KAACuI,mBAEHvI,KAAC4B,KAAK,eACN5B,MAAC4B,KAAK,WAAY,kBAEpB4G,MAAO,WACL,GAAAC,OAAA,OAAA,KAAA,CACEA,OAASzI,KAAC+G,cAAc2B,OACxB,IAAaD,QAAA,KAAb,CAAA,MACAzI,KAAC2I,IAAI,wBACLF,QAAOG,YACT5I,KAAC4G,QAAU,YACX5G,MAAC4B,KAAK,wBAIRyG,aAAc,WACZ,GAAAN,GAAAC,WAAAC,IAAAd,OAAAa,YAAaa,KAAKC,IAAI9I,KAACyG,QAAQZ,QAAS7F,KAAC6G,OAAO7F,SAChD,4KAAmC+H,QAAQ,SAAAC,aAAA,UAACrI,GAC1C,GAAA8H,OAAAO,OAACL,IAAI,mBAAoBhI,EACzB8H,QAAS,GAAIQ,QAAOD,MAACvC,QAAQb,aAC7B6C,QAAOS,UAAY,SAACC,OAClBH,MAACjC,cAAcpD,OAAOqF,MAACjC,cAAcqC,QAAQX,QAAS,EACtDO,OAAClC,YAAY7D,KAAKwF,cAClBO,OAACK,cAAcF,MAAM3B,aACvBwB,OAAClC,YAAY7D,KAAKwF,UAPuBzI,MAQ3C,OAAOgI,2BAETqB,cAAe,SAAC/B,OACd,GAAA3G,GAAAoH,EAAAE,GAAAjI,MAAC2I,IAAI,SAAUrB,MAAMgC,MAAO,eAAetJ,KAAC+G,cAAc/F,OAAQ,UAClEhB,MAACmI,gBACDnI,MAAC4B,KAAK,WAAY5B,KAACmI,eAAiBnI,KAAC6G,OAAO7F,OAC5ChB,MAACoI,WAAWd,MAAMgC,OAAShC,KAE3B,IAAGtH,KAACyG,QAAQ6B,gBAAiB,KAA7B,CACEtI,KAACyG,QAAQ6B,cAAgBhB,MAAMgB,aAC/BtI,MAAC2I,IAAI,0BACL,IAAyD3I,KAAC6G,OAAO7F,OAAS,EAA1E,CAAA,IAA4BL,EAAAoH,EAAA,EAAAE,IAAAjI,KAAA8G,YAAA9F,OAAA,GAAAiH,IAAAF,EAAAE,IAAAF,EAAAE,IAAAtH,EAAA,GAAAsH,MAAAF,IAAAA,EAA5B,CAAA/H,KAACuI,oBACH,GAAGa,QAAArI,KAAQf,KAACoI,WAAT,OAAA,EAAH,OACEpI,MAACuI,sBADH,OAGEvI,MAACuJ,kCAELA,gBAAiB,WACf,GAAA/B,MAAAF,MAAA3G,EAAA0G,MAAAU,EAAAyB,EAAA1I,EAAAkB,IAAAyH,KAAAC,KAAAC,KAAAC,OAAAC,KAAA5B,IAAA6B,KAAAC,IAAA/H,KAAM,CACNiG,KAAAjI,KAAAoI,UAAA,KAAAL,EAAA,EAAA0B,KAAAxB,IAAAjH,OAAA+G,EAAA0B,KAAA1B,IAAA,aACE/F,OAAQsF,MAAME,KAAKxG,OAAS,GAAKsG,MAAM0C,SAAW1C,MAAM2C,OAC1DjI,KAAOsF,MAAM0C,SAAW1C,MAAM2C,MAC9BjK,MAAC2I,IAAI,iCAAkCE,KAAKqB,MAAMlI,IAAM,KAAO,KAC/DwF,MAAO,GAAI2C,YAAWnI,IACtB4H,QAAS,CACTE,MAAA9J,KAAAoI,UAAA,KAAAoB,EAAA,EAAAE,KAAAI,KAAA9I,OAAAwI,EAAAE,KAAAF,IAAA,cACEO,MAAAzC,MAAAE,IAAA,KAAA7G,EAAAG,EAAA,EAAA6I,KAAAI,KAAA/I,OAAAF,EAAA6I,KAAAhJ,IAAAG,EAAA,aACE0G,MAAK4C,IAAIP,KAAMD,OACf,IAAGjJ,IAAK2G,MAAME,KAAKxG,OAAS,EAA5B,CACE4I,QAAUtC,MAAM2C,WADlB,CAGEL,QAAUtC,MAAM0C,WAEtB3C,MAAQ,GAAIgD,OAAM7C,OAChB3F,KAAM,oBAER7B,MAAC4B,KAAK,WAAYyF,MAAOG,qBAE3Be,gBAAiB,WACf,GAAAjB,OAAAgD,KAAA7B,MAAA,IAAqCzI,KAAC8G,YAAY9F,SAAU,EAA5D,CAAA,KAAM,IAAIJ,OAAM,mBAChB,GAAUZ,KAACkI,WAAalI,KAAC6G,OAAO7F,OAAhC,CAAA,OAEAsG,MAAQtH,KAAC6G,OAAO7G,KAACkI,YACjBO,QAASzI,KAAC8G,YAAY4B,OACtB4B,MAAOtK,KAACuK,QAAQjD,MAEhBtH,MAAC2I,IAAI,mBAAmB2B,KAAKhB,MAAQ,GAAG,OAAOtJ,KAAC6G,OAAO7F,OACvDhB,MAAC+G,cAAc9D,KAAKwF,cACpBA,QAAO+B,YAAYF,qBAErB3C,eAAgB,SAAC8C,KACf,MAAOA,KAAI5C,aAAa,EAAG,EAAG7H,KAACyG,QAAQR,MAAOjG,KAACyG,QAAQP,QAAQsB,oBAEjEK,aAAc,SAACR,OACb,GAAAoD,IAAA,IAAOzK,KAAAkH,SAAA,KAAP,CACElH,KAACkH,QAAUtC,SAAS8F,cAAc,SAClC1K,MAACkH,QAAQjB,MAAQjG,KAACyG,QAAQR,KAC1BjG,MAACkH,QAAQhB,OAASlG,KAACyG,QAAQP,OAE7BuE,IAAMzK,KAACkH,QAAQyD,WAAW,KAC1BF,KAAIG,UAAU,EAAG,EAAG5K,KAACyG,QAAQR,MAAOjG,KAACyG,QAAQP,OAC7CuE,KAAII,UAAY7K,KAACyG,QAAQV,UACzB0E,KAAIK,SAAS,EAAG,EAAG9K,KAACyG,QAAQR,MAAOjG,KAACyG,QAAQP,OAC5C,IAAGmB,gBAAiBE,WAApB,CACEkD,IAAIM,aAAa1D,MAAO,EAAG,EAC3B,OAAOA,OACToD,IAAIO,UAAU3D,MAAO,EAAG,EACxB,OAAOrH,MAAC2H,eAAe8C,oBAEzBQ,eAAiB,WACf,GAAAC,WAAAC,MAAAD,WAAYtG,SAAS8F,cAAc,SACnCQ,WAAUjF,MAAQjG,KAACyG,QAAQR,KAC3BiF,WAAUhF,OAASlG,KAACyG,QAAQP,MAC5BiF,QAASD,UAAUP,WAAW,KAC9BQ,QAAON,UAAY,SACnBM,QAAOL,SAAS,EAAG,EAAG9K,KAACyG,QAAQR,MAAOjG,KAACyG,QAAQP,OAC/CiF,QAAOH,UAAUhL,KAACkH,QAAS,EAAG,EAC9B,OAAOlH,MAAC2H,eAAewD,uBAEzBZ,QAAS,SAACjD,OACR,GAAAgC,OAAAgB,IAAAhB,OAAQtJ,KAAC6G,OAAOuC,QAAQ9B,MACxBgD,OACEhB,MAAOA,MACP8B,KAAM9B,QAAUtJ,KAAC6G,OAAO7F,OAAS,EACjCsF,MAAOgB,MAAMhB,MACbE,QAASc,MAAMd,QACfL,YAAamB,MAAMnB,YACnBF,MAAOjG,KAACyG,QAAQR,MAChBC,OAAQlG,KAACyG,QAAQP,OACjBF,QAAShG,KAACyG,QAAQT,QAClBK,OAAQrG,KAACyG,QAAQJ,OACjBiC,cAAetI,KAACyG,QAAQ6B,cACxBxC,OAAQ9F,KAACyG,QAAQX,OACjBuF,YAAcjH,QAAQU,OAAQ,SAEhC,IAAGwC,MAAAE,MAAA,KAAH,CACE8C,KAAK9C,KAAOF,MAAME,IAClB8C,MAAK9C,KAAOxH,KAAC2H,eAAeL,MAAME,KAClC8C,MAAKgB,QAAUtL,KAACiL,qBACb,IAAG3D,MAAA/E,SAAA,KAAH,CACH+H,KAAK9C,KAAOxH,KAAC2H,eAAeL,MAAM/E,QAClC+H,MAAKgB,QAAUtL,KAACiL,qBACb,IAAG3D,MAAAD,OAAA,KAAH,CACHiD,KAAK9C,KAAOxH,KAAC6H,aAAaP,MAAMD,MAChCiD,MAAKgB,QAAUtL,KAACiL,qBAFb,CAIH,KAAM,IAAIrK,OAAM,iBAElB,MAAO0J,qBAET3B,IAAK,WACH,GAAA1G,KADIA,MAAA,GAAAI,UAAArB,OAAA2B,MAAA5B,KAAAsB,UAAA,KACJ,KAAcrC,KAACyG,QAAQL,MAAvB,CAAA,aACAjD,SAAQwF,IAAR/F,MAAAO,QAAYlB,mBA7NEf,aAgOlBzB,QAAOD,QAAUS","sourceRoot":"","sourcesContent":["(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o 0 && this._events[type].length > m) {\n this._events[type].warned = true;\n console.error('(node) warning: possible EventEmitter memory ' +\n 'leak detected. %d listeners added. ' +\n 'Use emitter.setMaxListeners() to increase limit.',\n this._events[type].length);\n if (typeof console.trace === 'function') {\n // not supported in IE 10\n console.trace();\n }\n }\n }\n\n return this;\n};\n\nEventEmitter.prototype.on = EventEmitter.prototype.addListener;\n\nEventEmitter.prototype.once = function(type, listener) {\n if (!isFunction(listener))\n throw TypeError('listener must be a function');\n\n var fired = false;\n\n function g() {\n this.removeListener(type, g);\n\n if (!fired) {\n fired = true;\n listener.apply(this, arguments);\n }\n }\n\n g.listener = listener;\n this.on(type, g);\n\n return this;\n};\n\n// emits a 'removeListener' event iff the listener was removed\nEventEmitter.prototype.removeListener = function(type, listener) {\n var list, position, length, i;\n\n if (!isFunction(listener))\n throw TypeError('listener must be a function');\n\n if (!this._events || !this._events[type])\n return this;\n\n list = this._events[type];\n length = list.length;\n position = -1;\n\n if (list === listener ||\n (isFunction(list.listener) && list.listener === listener)) {\n delete this._events[type];\n if (this._events.removeListener)\n this.emit('removeListener', type, listener);\n\n } else if (isObject(list)) {\n for (i = length; i-- > 0;) {\n if (list[i] === listener ||\n (list[i].listener && list[i].listener === listener)) {\n position = i;\n break;\n }\n }\n\n if (position < 0)\n return this;\n\n if (list.length === 1) {\n list.length = 0;\n delete this._events[type];\n } else {\n list.splice(position, 1);\n }\n\n if (this._events.removeListener)\n this.emit('removeListener', type, listener);\n }\n\n return this;\n};\n\nEventEmitter.prototype.removeAllListeners = function(type) {\n var key, listeners;\n\n if (!this._events)\n return this;\n\n // not listening for removeListener, no need to emit\n if (!this._events.removeListener) {\n if (arguments.length === 0)\n this._events = {};\n else if (this._events[type])\n delete this._events[type];\n return this;\n }\n\n // emit removeListener for all listeners on all events\n if (arguments.length === 0) {\n for (key in this._events) {\n if (key === 'removeListener') continue;\n this.removeAllListeners(key);\n }\n this.removeAllListeners('removeListener');\n this._events = {};\n return this;\n }\n\n listeners = this._events[type];\n\n if (isFunction(listeners)) {\n this.removeListener(type, listeners);\n } else if (listeners) {\n // LIFO order\n while (listeners.length)\n this.removeListener(type, listeners[listeners.length - 1]);\n }\n delete this._events[type];\n\n return this;\n};\n\nEventEmitter.prototype.listeners = function(type) {\n var ret;\n if (!this._events || !this._events[type])\n ret = [];\n else if (isFunction(this._events[type]))\n ret = [this._events[type]];\n else\n ret = this._events[type].slice();\n return ret;\n};\n\nEventEmitter.prototype.listenerCount = function(type) {\n if (this._events) {\n var evlistener = this._events[type];\n\n if (isFunction(evlistener))\n return 1;\n else if (evlistener)\n return evlistener.length;\n }\n return 0;\n};\n\nEventEmitter.listenerCount = function(emitter, type) {\n return emitter.listenerCount(type);\n};\n\nfunction isFunction(arg) {\n return typeof arg === 'function';\n}\n\nfunction isNumber(arg) {\n return typeof arg === 'number';\n}\n\nfunction isObject(arg) {\n return typeof arg === 'object' && arg !== null;\n}\n\nfunction isUndefined(arg) {\n return arg === void 0;\n}\n","### CoffeeScript version of the browser detection from MooTools ###\n\nua = navigator.userAgent.toLowerCase()\nplatform = navigator.platform.toLowerCase()\nUA = ua.match(/(opera|ie|firefox|chrome|version)[\\s\\/:]([\\w\\d\\.]+)?.*?(safari|version[\\s\\/:]([\\w\\d\\.]+)|$)/) or [null, 'unknown', 0]\nmode = UA[1] == 'ie' && document.documentMode\n\nbrowser =\n name: if UA[1] is 'version' then UA[3] else UA[1]\n version: mode or parseFloat(if UA[1] is 'opera' && UA[4] then UA[4] else UA[2])\n\n platform:\n name: if ua.match(/ip(?:ad|od|hone)/) then 'ios' else (ua.match(/(?:webos|android)/) or platform.match(/mac|win|linux/) or ['other'])[0]\n\nbrowser[browser.name] = true\nbrowser[browser.name + parseInt(browser.version, 10)] = true\nbrowser.platform[browser.platform.name] = true\n\nmodule.exports = browser\n","{EventEmitter} = require 'events'\nbrowser = require './browser.coffee'\n\nclass GIF extends EventEmitter\n\n defaults =\n workerScript: 'gif.worker.js'\n workers: 2\n repeat: 0 # repeat forever, -1 = repeat once\n background: '#fff'\n quality: 10 # pixel sample interval, lower is better\n width: null # size derermined from first frame if possible\n height: null\n transparent: null\n debug: false\n dither: false # see GIFEncoder.js for dithering options\n\n frameDefaults =\n delay: 500 # ms\n copy: false\n dispose: -1\n\n constructor: (options) ->\n @running = false\n\n @options = {}\n @frames = []\n\n @freeWorkers = []\n @activeWorkers = []\n\n @setOptions options\n for key, value of defaults\n @options[key] ?= value\n\n setOption: (key, value) ->\n @options[key] = value\n if @_canvas? and key in ['width', 'height']\n @_canvas[key] = value\n\n setOptions: (options) ->\n @setOption key, value for own key, value of options\n\n addFrame: (image, options={}) ->\n frame = {}\n frame.transparent = @options.transparent\n for key of frameDefaults\n frame[key] = options[key] or frameDefaults[key]\n\n # use the images width and height for options unless already set\n @setOption 'width', image.width unless @options.width?\n @setOption 'height', image.height unless @options.height?\n\n if ImageData? and image instanceof ImageData\n frame.data = image.data\n else if (CanvasRenderingContext2D? and image instanceof CanvasRenderingContext2D) or (WebGLRenderingContext? and image instanceof WebGLRenderingContext)\n if options.copy\n frame.data = @getContextData image\n else\n frame.context = image\n else if image.childNodes?\n if options.copy\n frame.data = @getImageData image\n else\n frame.image = image\n else\n throw new Error 'Invalid image'\n\n @frames.push frame\n\n render: ->\n throw new Error 'Already running' if @running\n\n if not @options.width? or not @options.height?\n throw new Error 'Width and height must be set prior to rendering'\n\n @running = true\n @nextFrame = 0\n @finishedFrames = 0\n\n @imageParts = (null for i in [0...@frames.length])\n numWorkers = @spawnWorkers()\n # we need to wait for the palette\n if @options.globalPalette == true\n @renderNextFrame()\n else\n @renderNextFrame() for i in [0...numWorkers]\n\n @emit 'start'\n @emit 'progress', 0\n\n abort: ->\n loop\n worker = @activeWorkers.shift()\n break unless worker?\n @log 'killing active worker'\n worker.terminate()\n @running = false\n @emit 'abort'\n\n # private\n\n spawnWorkers: ->\n numWorkers = Math.min(@options.workers, @frames.length)\n [@freeWorkers.length...numWorkers].forEach (i) =>\n @log \"spawning worker #{ i }\"\n worker = new Worker @options.workerScript\n worker.onmessage = (event) =>\n @activeWorkers.splice @activeWorkers.indexOf(worker), 1\n @freeWorkers.push worker\n @frameFinished event.data\n @freeWorkers.push worker\n return numWorkers\n\n frameFinished: (frame) ->\n @log \"frame #{ frame.index } finished - #{ @activeWorkers.length } active\"\n @finishedFrames++\n @emit 'progress', @finishedFrames / @frames.length\n @imageParts[frame.index] = frame\n # remember calculated palette, spawn the rest of the workers\n if @options.globalPalette == true\n @options.globalPalette = frame.globalPalette\n @log 'global palette analyzed'\n @renderNextFrame() for i in [1...@freeWorkers.length] if @frames.length > 2\n if null in @imageParts\n @renderNextFrame()\n else\n @finishRendering()\n\n finishRendering: ->\n len = 0\n for frame in @imageParts\n len += (frame.data.length - 1) * frame.pageSize + frame.cursor\n len += frame.pageSize - frame.cursor\n @log \"rendering finished - filesize #{ Math.round(len / 1000) }kb\"\n data = new Uint8Array len\n offset = 0\n for frame in @imageParts\n for page, i in frame.data\n data.set page, offset\n if i is frame.data.length - 1\n offset += frame.cursor\n else\n offset += frame.pageSize\n\n image = new Blob [data],\n type: 'image/gif'\n\n @emit 'finished', image, data\n\n renderNextFrame: ->\n throw new Error 'No free workers' if @freeWorkers.length is 0\n return if @nextFrame >= @frames.length # no new frame to render\n\n frame = @frames[@nextFrame++]\n worker = @freeWorkers.shift()\n task = @getTask frame\n\n @log \"starting frame #{ task.index + 1 } of #{ @frames.length }\"\n @activeWorkers.push worker\n worker.postMessage task#, [task.data.buffer]\n\n getContextData: (ctx) ->\n return ctx.getImageData(0, 0, @options.width, @options.height).data\n\n getImageData: (image) ->\n if not @_canvas?\n @_canvas = document.createElement 'canvas'\n @_canvas.width = @options.width\n @_canvas.height = @options.height\n\n ctx = @_canvas.getContext '2d'\n ctx.clearRect 0, 0, @options.width, @options.height\n ctx.fillStyle = @options.background\n ctx.fillRect 0, 0, @options.width, @options.height\n if image instanceof ImageData\n ctx.putImageData image, 0, 0\n return image\n ctx.drawImage image, 0, 0\n return @getContextData ctx\n\n getBgImageData: -> \n bg_canvas = document.createElement 'canvas'\n bg_canvas.width = @options.width\n bg_canvas.height = @options.height\n bg_ctx = bg_canvas.getContext '2d'\n bg_ctx.fillStyle = '#ffffff';\n bg_ctx.fillRect 0, 0, @options.width, @options.height\n bg_ctx.drawImage @_canvas, 0, 0\n return @getContextData bg_ctx\n \n getTask: (frame) ->\n index = @frames.indexOf frame\n task =\n index: index\n last: index is (@frames.length - 1)\n delay: frame.delay\n dispose: frame.dispose\n transparent: frame.transparent\n width: @options.width\n height: @options.height\n quality: @options.quality\n dither: @options.dither\n globalPalette: @options.globalPalette\n repeat: @options.repeat\n canTransfer: (browser.name is 'chrome')\n\n if frame.data?\n task.data = frame.data\n task.data = @getContextData frame.data\n task.bg_data = @getBgImageData()\n else if frame.context?\n task.data = @getContextData frame.context\n task.bg_data = @getBgImageData()\n else if frame.image?\n task.data = @getImageData frame.image\n task.bg_data = @getBgImageData()\n else\n throw new Error 'Invalid frame'\n\n return task\n\n log: (args...) ->\n return unless @options.debug\n console.log args...\n\n\nmodule.exports = GIF\n"]} \ No newline at end of file diff --git a/dist/gif.worker.js b/dist/gif.worker.js index 269624e..274a661 100644 --- a/dist/gif.worker.js +++ b/dist/gif.worker.js @@ -1,3 +1,3 @@ // gif.worker.js 0.2.0 - https://github.com/jnordberg/gif.js -(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o=ByteArray.pageSize)this.newPage();this.pages[this.page][this.cursor++]=val};ByteArray.prototype.writeUTFBytes=function(string){for(var l=string.length,i=0;i=0)this.dispose=disposalCode};GIFEncoder.prototype.setRepeat=function(repeat){this.repeat=repeat};GIFEncoder.prototype.setTransparent=function(color){this.transparent=color};GIFEncoder.prototype.addFrame=function(imageData){this.image=imageData;this.colorTab=this.globalPalette&&this.globalPalette.slice?this.globalPalette:null;this.getImagePixels();this.analyzePixels();if(this.globalPalette===true)this.globalPalette=this.colorTab;if(this.firstFrame){this.writeLSD();this.writePalette();if(this.repeat>=0){this.writeNetscapeExt()}}this.writeGraphicCtrlExt();this.writeImageDesc();if(!this.firstFrame&&!this.globalPalette)this.writePalette();this.writePixels();this.firstFrame=false};GIFEncoder.prototype.finish=function(){this.out.writeByte(59)};GIFEncoder.prototype.setQuality=function(quality){if(quality<1)quality=1;this.sample=quality};GIFEncoder.prototype.setDither=function(dither){if(dither===true)dither="FloydSteinberg";this.dither=dither};GIFEncoder.prototype.setGlobalPalette=function(palette){this.globalPalette=palette};GIFEncoder.prototype.getGlobalPalette=function(){return this.globalPalette&&this.globalPalette.slice&&this.globalPalette.slice(0)||this.globalPalette};GIFEncoder.prototype.writeHeader=function(){this.out.writeUTFBytes("GIF89a")};GIFEncoder.prototype.analyzePixels=function(){if(!this.colorTab){this.neuQuant=new NeuQuant(this.pixels,this.sample);this.neuQuant.buildColormap();this.colorTab=this.neuQuant.getColormap()}if(this.dither){this.ditherPixels(this.dither.replace("-serpentine",""),this.dither.match(/-serpentine/)!==null)}else{this.indexPixels()}this.pixels=null;this.colorDepth=8;this.palSize=7;if(this.transparent!==null){this.transIndex=this.findClosest(this.transparent,true)}};GIFEncoder.prototype.indexPixels=function(imgq){var nPix=this.pixels.length/3;this.indexedPixels=new Uint8Array(nPix);var k=0;for(var j=0;j=0&&x1+x=0&&y1+y>16,(c&65280)>>8,c&255,used)};GIFEncoder.prototype.findClosestRGB=function(r,g,b,used){if(this.colorTab===null)return-1;if(this.neuQuant&&!used){return this.neuQuant.lookupRGB(r,g,b)}var c=b|g<<8|r<<16;var minpos=0;var dmin=256*256*256;var len=this.colorTab.length;for(var i=0,index=0;i=0){disp=dispose&7}disp<<=2;this.out.writeByte(0|disp|0|transp);this.writeShort(this.delay);this.out.writeByte(this.transIndex);this.out.writeByte(0)};GIFEncoder.prototype.writeImageDesc=function(){this.out.writeByte(44);this.writeShort(0);this.writeShort(0);this.writeShort(this.width);this.writeShort(this.height);if(this.firstFrame||this.globalPalette){this.out.writeByte(0)}else{this.out.writeByte(128|0|0|0|this.palSize)}};GIFEncoder.prototype.writeLSD=function(){this.writeShort(this.width);this.writeShort(this.height);this.out.writeByte(128|112|0|this.palSize);this.out.writeByte(0);this.out.writeByte(0)};GIFEncoder.prototype.writeNetscapeExt=function(){this.out.writeByte(33);this.out.writeByte(255);this.out.writeByte(11);this.out.writeUTFBytes("NETSCAPE2.0");this.out.writeByte(3);this.out.writeByte(1);this.writeShort(this.repeat);this.out.writeByte(0)};GIFEncoder.prototype.writePalette=function(){this.out.writeBytes(this.colorTab);var n=3*256-this.colorTab.length;for(var i=0;i>8&255)};GIFEncoder.prototype.writePixels=function(){var enc=new LZWEncoder(this.width,this.height,this.indexedPixels,this.colorDepth);enc.encode(this.out)};GIFEncoder.prototype.stream=function(){return this.out};module.exports=GIFEncoder},{"./LZWEncoder.js":2,"./TypedNeuQuant.js":3}],2:[function(require,module,exports){var EOF=-1;var BITS=12;var HSIZE=5003;var masks=[0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535];function LZWEncoder(width,height,pixels,colorDepth){var initCodeSize=Math.max(2,colorDepth);var accum=new Uint8Array(256);var htab=new Int32Array(HSIZE);var codetab=new Int32Array(HSIZE);var cur_accum,cur_bits=0;var a_count;var free_ent=0;var maxcode;var clear_flg=false;var g_init_bits,ClearCode,EOFCode;function char_out(c,outs){accum[a_count++]=c;if(a_count>=254)flush_char(outs)}function cl_block(outs){cl_hash(HSIZE);free_ent=ClearCode+2;clear_flg=true;output(ClearCode,outs)}function cl_hash(hsize){for(var i=0;i=0){disp=hsize_reg-i;if(i===0)disp=1;do{if((i-=disp)<0)i+=hsize_reg;if(htab[i]===fcode){ent=codetab[i];continue outer_loop}}while(htab[i]>=0)}output(ent,outs);ent=c;if(free_ent<1<0){outs.writeByte(a_count);outs.writeBytes(accum,0,a_count);a_count=0}}function MAXCODE(n_bits){return(1<0)cur_accum|=code<=8){char_out(cur_accum&255,outs);cur_accum>>=8;cur_bits-=8}if(free_ent>maxcode||clear_flg){if(clear_flg){maxcode=MAXCODE(n_bits=g_init_bits);clear_flg=false}else{++n_bits;if(n_bits==BITS)maxcode=1<0){char_out(cur_accum&255,outs);cur_accum>>=8;cur_bits-=8}flush_char(outs)}}this.encode=encode}module.exports=LZWEncoder},{}],3:[function(require,module,exports){var ncycles=100;var netsize=256;var maxnetpos=netsize-1;var netbiasshift=4;var intbiasshift=16;var intbias=1<>betashift;var betagamma=intbias<>3;var radiusbiasshift=6;var radiusbias=1<>3);var i,v;for(i=0;i>=netbiasshift;network[i][1]>>=netbiasshift;network[i][2]>>=netbiasshift;network[i][3]=i}}function altersingle(alpha,i,b,g,r){network[i][0]-=alpha*(network[i][0]-b)/initalpha;network[i][1]-=alpha*(network[i][1]-g)/initalpha;network[i][2]-=alpha*(network[i][2]-r)/initalpha}function alterneigh(radius,i,b,g,r){var lo=Math.abs(i-radius);var hi=Math.min(i+radius,netsize);var j=i+1;var k=i-1;var m=1;var p,a;while(jlo){a=radpower[m++];if(jlo){p=network[k--];p[0]-=a*(p[0]-b)/alpharadbias;p[1]-=a*(p[1]-g)/alpharadbias;p[2]-=a*(p[2]-r)/alpharadbias}}}function contest(b,g,r){var bestd=~(1<<31);var bestbiasd=bestd;var bestpos=-1;var bestbiaspos=bestpos;var i,n,dist,biasdist,betafreq;for(i=0;i>intbiasshift-netbiasshift);if(biasdist>betashift;freq[i]-=betafreq;bias[i]+=betafreq<>1;for(j=previouscol+1;j>1;for(j=previouscol+1;j<256;j++)netindex[j]=maxnetpos}function inxsearch(b,g,r){var a,p,dist;var bestd=1e3;var best=-1;var i=netindex[g];var j=i-1;while(i=0){if(i=bestd)i=netsize;else{i++;if(dist<0)dist=-dist;a=p[0]-b;if(a<0)a=-a;dist+=a;if(dist=0){p=network[j];dist=g-p[1];if(dist>=bestd)j=-1;else{j--;if(dist<0)dist=-dist;a=p[0]-b;if(a<0)a=-a;dist+=a;if(dist>radiusbiasshift;if(rad<=1)rad=0;for(i=0;i=lengthcount)pix-=lengthcount;i++;if(delta===0)delta=1;if(i%delta===0){alpha-=alpha/alphadec;radius-=radius/radiusdec;rad=radius>>radiusbiasshift;if(rad<=1)rad=0;for(j=0;j=ByteArray.pageSize)this.newPage();this.pages[this.page][this.cursor++]=val};ByteArray.prototype.writeUTFBytes=function(string){for(var l=string.length,i=0;i=0)this.dispose=disposalCode};GIFEncoder.prototype.setRepeat=function(repeat){this.repeat=repeat};GIFEncoder.prototype.setTransparent=function(color){this.transparent=color};GIFEncoder.prototype.addFrame=function(imageData,bgImageData){this.image=bgImageData;this.no_bg_image=imageData;this.colorTab=this.globalPalette&&this.globalPalette.slice?this.globalPalette:null;this.getImagePixels();this.analyzePixels();if(this.globalPalette===true)this.globalPalette=this.colorTab;if(this.firstFrame){this.writeLSD();this.writePalette();if(this.repeat>=0){this.writeNetscapeExt()}}this.writeGraphicCtrlExt();this.writeImageDesc();if(!this.firstFrame&&!this.globalPalette)this.writePalette();this.writePixels();this.firstFrame=false};GIFEncoder.prototype.finish=function(){this.out.writeByte(59)};GIFEncoder.prototype.setQuality=function(quality){if(quality<1)quality=1;this.sample=quality};GIFEncoder.prototype.setDither=function(dither){if(dither===true)dither="FloydSteinberg";this.dither=dither};GIFEncoder.prototype.setGlobalPalette=function(palette){this.globalPalette=palette};GIFEncoder.prototype.getGlobalPalette=function(){return this.globalPalette&&this.globalPalette.slice&&this.globalPalette.slice(0)||this.globalPalette};GIFEncoder.prototype.writeHeader=function(){this.out.writeUTFBytes("GIF89a")};GIFEncoder.prototype.analyzePixels=function(){var len=this.pixels.length;var nPix=len/3;if(!this.colorTab){this.neuQuant=new NeuQuant(this.pixels,this.sample);this.neuQuant.buildColormap();this.colorTab=this.neuQuant.getColormap()}if(this.dither){this.ditherPixels(this.dither.replace("-serpentine",""),this.dither.match(/-serpentine/)!==null)}else{this.indexPixels()}this.pixels=null;this.colorDepth=8;this.palSize=7;if(this.transparent!==null){this.transIndex=this.findClosest(this.transparent,true);for(var pixelIndex=0;pixelIndex=0&&x1+x=0&&y1+y>16,(c&65280)>>8,c&255,used)};GIFEncoder.prototype.findClosestRGB=function(r,g,b,used){if(this.colorTab===null)return-1;if(this.neuQuant&&!used){return this.neuQuant.lookupRGB(r,g,b)}var c=b|g<<8|r<<16;var minpos=0;var dmin=256*256*256;var len=this.colorTab.length;for(var i=0,index=0;i=0){disp=this.dispose&7}disp<<=2;this.out.writeByte(0|disp|0|transp);this.writeShort(this.delay);this.out.writeByte(this.transIndex);this.out.writeByte(0)};GIFEncoder.prototype.writeImageDesc=function(){this.out.writeByte(44);this.writeShort(0);this.writeShort(0);this.writeShort(this.width);this.writeShort(this.height);if(this.firstFrame||this.globalPalette){this.out.writeByte(0)}else{this.out.writeByte(128|0|0|0|this.palSize)}};GIFEncoder.prototype.writeLSD=function(){this.writeShort(this.width);this.writeShort(this.height);this.out.writeByte(128|112|0|this.palSize);this.out.writeByte(0);this.out.writeByte(0)};GIFEncoder.prototype.writeNetscapeExt=function(){this.out.writeByte(33);this.out.writeByte(255);this.out.writeByte(11);this.out.writeUTFBytes("NETSCAPE2.0");this.out.writeByte(3);this.out.writeByte(1);this.writeShort(this.repeat);this.out.writeByte(0)};GIFEncoder.prototype.writePalette=function(){this.out.writeBytes(this.colorTab);var n=3*256-this.colorTab.length;for(var i=0;i>8&255)};GIFEncoder.prototype.writePixels=function(){var enc=new LZWEncoder(this.width,this.height,this.indexedPixels,this.colorDepth);enc.encode(this.out)};GIFEncoder.prototype.stream=function(){return this.out};module.exports=GIFEncoder},{"./LZWEncoder.js":2,"./TypedNeuQuant.js":3}],2:[function(require,module,exports){var EOF=-1;var BITS=12;var HSIZE=5003;var masks=[0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535];function LZWEncoder(width,height,pixels,colorDepth){var initCodeSize=Math.max(2,colorDepth);var accum=new Uint8Array(256);var htab=new Int32Array(HSIZE);var codetab=new Int32Array(HSIZE);var cur_accum,cur_bits=0;var a_count;var free_ent=0;var maxcode;var clear_flg=false;var g_init_bits,ClearCode,EOFCode;function char_out(c,outs){accum[a_count++]=c;if(a_count>=254)flush_char(outs)}function cl_block(outs){cl_hash(HSIZE);free_ent=ClearCode+2;clear_flg=true;output(ClearCode,outs)}function cl_hash(hsize){for(var i=0;i=0){disp=hsize_reg-i;if(i===0)disp=1;do{if((i-=disp)<0)i+=hsize_reg;if(htab[i]===fcode){ent=codetab[i];continue outer_loop}}while(htab[i]>=0)}output(ent,outs);ent=c;if(free_ent<1<0){outs.writeByte(a_count);outs.writeBytes(accum,0,a_count);a_count=0}}function MAXCODE(n_bits){return(1<0)cur_accum|=code<=8){char_out(cur_accum&255,outs);cur_accum>>=8;cur_bits-=8}if(free_ent>maxcode||clear_flg){if(clear_flg){maxcode=MAXCODE(n_bits=g_init_bits);clear_flg=false}else{++n_bits;if(n_bits==BITS)maxcode=1<0){char_out(cur_accum&255,outs);cur_accum>>=8;cur_bits-=8}flush_char(outs)}}this.encode=encode}module.exports=LZWEncoder},{}],3:[function(require,module,exports){var ncycles=100;var netsize=256;var maxnetpos=netsize-1;var netbiasshift=4;var intbiasshift=16;var intbias=1<>betashift;var betagamma=intbias<>3;var radiusbiasshift=6;var radiusbias=1<>3);var i,v;for(i=0;i>=netbiasshift;network[i][1]>>=netbiasshift;network[i][2]>>=netbiasshift;network[i][3]=i}}function altersingle(alpha,i,b,g,r){network[i][0]-=alpha*(network[i][0]-b)/initalpha;network[i][1]-=alpha*(network[i][1]-g)/initalpha;network[i][2]-=alpha*(network[i][2]-r)/initalpha}function alterneigh(radius,i,b,g,r){var lo=Math.abs(i-radius);var hi=Math.min(i+radius,netsize);var j=i+1;var k=i-1;var m=1;var p,a;while(jlo){a=radpower[m++];if(jlo){p=network[k--];p[0]-=a*(p[0]-b)/alpharadbias;p[1]-=a*(p[1]-g)/alpharadbias;p[2]-=a*(p[2]-r)/alpharadbias}}}function contest(b,g,r){var bestd=~(1<<31);var bestbiasd=bestd;var bestpos=-1;var bestbiaspos=bestpos;var i,n,dist,biasdist,betafreq;for(i=0;i>intbiasshift-netbiasshift);if(biasdist>betashift;freq[i]-=betafreq;bias[i]+=betafreq<>1;for(j=previouscol+1;j>1;for(j=previouscol+1;j<256;j++)netindex[j]=maxnetpos}function inxsearch(b,g,r){var a,p,dist;var bestd=1e3;var best=-1;var i=netindex[g];var j=i-1;while(i=0){if(i=bestd)i=netsize;else{i++;if(dist<0)dist=-dist;a=p[0]-b;if(a<0)a=-a;dist+=a;if(dist=0){p=network[j];dist=g-p[1];if(dist>=bestd)j=-1;else{j--;if(dist<0)dist=-dist;a=p[0]-b;if(a<0)a=-a;dist+=a;if(dist>radiusbiasshift;if(rad<=1)rad=0;for(i=0;i=lengthcount)pix-=lengthcount;i++;if(delta===0)delta=1;if(i%delta===0){alpha-=alpha/alphadec;radius-=radius/radiusdec;rad=radius>>radiusbiasshift;if(rad<=1)rad=0;for(j=0;j= ByteArray.pageSize) this.newPage();\n this.pages[this.page][this.cursor++] = val;\n};\n\nByteArray.prototype.writeUTFBytes = function(string) {\n for (var l = string.length, i = 0; i < l; i++)\n this.writeByte(string.charCodeAt(i));\n};\n\nByteArray.prototype.writeBytes = function(array, offset, length) {\n for (var l = length || array.length, i = offset || 0; i < l; i++)\n this.writeByte(array[i]);\n};\n\nfunction GIFEncoder(width, height) {\n // image size\n this.width = ~~width;\n this.height = ~~height;\n\n // transparent color if given\n this.transparent = null;\n\n // transparent index in color table\n this.transIndex = 0;\n\n // -1 = no repeat, 0 = forever. anything else is repeat count\n this.repeat = -1;\n\n // frame delay (hundredths)\n this.delay = 0;\n\n this.image = null; // current frame\n this.pixels = null; // BGR byte array from frame\n this.indexedPixels = null; // converted frame indexed to palette\n this.colorDepth = null; // number of bit planes\n this.colorTab = null; // RGB palette\n this.neuQuant = null; // NeuQuant instance that was used to generate this.colorTab.\n this.usedEntry = new Array(); // active palette entries\n this.palSize = 7; // color table size (bits-1)\n this.dispose = -1; // disposal code (-1 = use default)\n this.firstFrame = true;\n this.sample = 10; // default sample interval for quantizer\n this.dither = false; // default dithering\n this.globalPalette = false;\n\n this.out = new ByteArray();\n}\n\n/*\n Sets the delay time between each frame, or changes it for subsequent frames\n (applies to last frame added)\n*/\nGIFEncoder.prototype.setDelay = function(milliseconds) {\n this.delay = Math.round(milliseconds / 10);\n};\n\n/*\n Sets frame rate in frames per second.\n*/\nGIFEncoder.prototype.setFrameRate = function(fps) {\n this.delay = Math.round(100 / fps);\n};\n\n/*\n Sets the GIF frame disposal code for the last added frame and any\n subsequent frames.\n\n Default is 0 if no transparent color has been set, otherwise 2.\n*/\nGIFEncoder.prototype.setDispose = function(disposalCode) {\n if (disposalCode >= 0) this.dispose = disposalCode;\n};\n\n/*\n Sets the number of times the set of GIF frames should be played.\n\n -1 = play once\n 0 = repeat indefinitely\n\n Default is -1\n\n Must be invoked before the first image is added\n*/\n\nGIFEncoder.prototype.setRepeat = function(repeat) {\n this.repeat = repeat;\n};\n\n/*\n Sets the transparent color for the last added frame and any subsequent\n frames. Since all colors are subject to modification in the quantization\n process, the color in the final palette for each frame closest to the given\n color becomes the transparent color for that frame. May be set to null to\n indicate no transparent color.\n*/\nGIFEncoder.prototype.setTransparent = function(color) {\n this.transparent = color;\n};\n\n/*\n Adds next GIF frame. The frame is not written immediately, but is\n actually deferred until the next frame is received so that timing\n data can be inserted. Invoking finish() flushes all frames.\n*/\nGIFEncoder.prototype.addFrame = function(imageData) {\n this.image = imageData;\n\n this.colorTab = this.globalPalette && this.globalPalette.slice ? this.globalPalette : null;\n\n this.getImagePixels(); // convert to correct format if necessary\n this.analyzePixels(); // build color table & map pixels\n\n if (this.globalPalette === true) this.globalPalette = this.colorTab;\n\n if (this.firstFrame) {\n this.writeLSD(); // logical screen descriptior\n this.writePalette(); // global color table\n if (this.repeat >= 0) {\n // use NS app extension to indicate reps\n this.writeNetscapeExt();\n }\n }\n\n this.writeGraphicCtrlExt(); // write graphic control extension\n this.writeImageDesc(); // image descriptor\n if (!this.firstFrame && !this.globalPalette) this.writePalette(); // local color table\n this.writePixels(); // encode and write pixel data\n\n this.firstFrame = false;\n};\n\n/*\n Adds final trailer to the GIF stream, if you don't call the finish method\n the GIF stream will not be valid.\n*/\nGIFEncoder.prototype.finish = function() {\n this.out.writeByte(0x3b); // gif trailer\n};\n\n/*\n Sets quality of color quantization (conversion of images to the maximum 256\n colors allowed by the GIF specification). Lower values (minimum = 1)\n produce better colors, but slow processing significantly. 10 is the\n default, and produces good color mapping at reasonable speeds. Values\n greater than 20 do not yield significant improvements in speed.\n*/\nGIFEncoder.prototype.setQuality = function(quality) {\n if (quality < 1) quality = 1;\n this.sample = quality;\n};\n\n/*\n Sets dithering method. Available are:\n - FALSE no dithering\n - TRUE or FloydSteinberg\n - FalseFloydSteinberg\n - Stucki\n - Atkinson\n You can add '-serpentine' to use serpentine scanning\n*/\nGIFEncoder.prototype.setDither = function(dither) {\n if (dither === true) dither = 'FloydSteinberg';\n this.dither = dither;\n};\n\n/*\n Sets global palette for all frames.\n You can provide TRUE to create global palette from first picture.\n Or an array of r,g,b,r,g,b,...\n*/\nGIFEncoder.prototype.setGlobalPalette = function(palette) {\n this.globalPalette = palette;\n};\n\n/*\n Returns global palette used for all frames.\n If setGlobalPalette(true) was used, then this function will return\n calculated palette after the first frame is added.\n*/\nGIFEncoder.prototype.getGlobalPalette = function() {\n return (this.globalPalette && this.globalPalette.slice && this.globalPalette.slice(0)) || this.globalPalette;\n};\n\n/*\n Writes GIF file header\n*/\nGIFEncoder.prototype.writeHeader = function() {\n this.out.writeUTFBytes(\"GIF89a\");\n};\n\n/*\n Analyzes current frame colors and creates color map.\n*/\nGIFEncoder.prototype.analyzePixels = function() {\n if (!this.colorTab) {\n this.neuQuant = new NeuQuant(this.pixels, this.sample);\n this.neuQuant.buildColormap(); // create reduced palette\n this.colorTab = this.neuQuant.getColormap();\n }\n\n // map image pixels to new palette\n if (this.dither) {\n this.ditherPixels(this.dither.replace('-serpentine', ''), this.dither.match(/-serpentine/) !== null);\n } else {\n this.indexPixels();\n }\n\n this.pixels = null;\n this.colorDepth = 8;\n this.palSize = 7;\n\n // get closest match to transparent color if specified\n if (this.transparent !== null) {\n this.transIndex = this.findClosest(this.transparent, true);\n }\n};\n\n/*\n Index pixels, without dithering\n*/\nGIFEncoder.prototype.indexPixels = function(imgq) {\n var nPix = this.pixels.length / 3;\n this.indexedPixels = new Uint8Array(nPix);\n var k = 0;\n for (var j = 0; j < nPix; j++) {\n var index = this.findClosestRGB(\n this.pixels[k++] & 0xff,\n this.pixels[k++] & 0xff,\n this.pixels[k++] & 0xff\n );\n this.usedEntry[index] = true;\n this.indexedPixels[j] = index;\n }\n};\n\n/*\n Taken from http://jsbin.com/iXofIji/2/edit by PAEz\n*/\nGIFEncoder.prototype.ditherPixels = function(kernel, serpentine) {\n var kernels = {\n FalseFloydSteinberg: [\n [3 / 8, 1, 0],\n [3 / 8, 0, 1],\n [2 / 8, 1, 1]\n ],\n FloydSteinberg: [\n [7 / 16, 1, 0],\n [3 / 16, -1, 1],\n [5 / 16, 0, 1],\n [1 / 16, 1, 1]\n ],\n Stucki: [\n [8 / 42, 1, 0],\n [4 / 42, 2, 0],\n [2 / 42, -2, 1],\n [4 / 42, -1, 1],\n [8 / 42, 0, 1],\n [4 / 42, 1, 1],\n [2 / 42, 2, 1],\n [1 / 42, -2, 2],\n [2 / 42, -1, 2],\n [4 / 42, 0, 2],\n [2 / 42, 1, 2],\n [1 / 42, 2, 2]\n ],\n Atkinson: [\n [1 / 8, 1, 0],\n [1 / 8, 2, 0],\n [1 / 8, -1, 1],\n [1 / 8, 0, 1],\n [1 / 8, 1, 1],\n [1 / 8, 0, 2]\n ]\n };\n\n if (!kernel || !kernels[kernel]) {\n throw 'Unknown dithering kernel: ' + kernel;\n }\n\n var ds = kernels[kernel];\n var index = 0,\n height = this.height,\n width = this.width,\n data = this.pixels;\n var direction = serpentine ? -1 : 1;\n\n this.indexedPixels = new Uint8Array(this.pixels.length / 3);\n\n for (var y = 0; y < height; y++) {\n\n if (serpentine) direction = direction * -1;\n\n for (var x = (direction == 1 ? 0 : width - 1), xend = (direction == 1 ? width : 0); x !== xend; x += direction) {\n\n index = (y * width) + x;\n // Get original colour\n var idx = index * 3;\n var r1 = data[idx];\n var g1 = data[idx + 1];\n var b1 = data[idx + 2];\n\n // Get converted colour\n idx = this.findClosestRGB(r1, g1, b1);\n this.usedEntry[idx] = true;\n this.indexedPixels[index] = idx;\n idx *= 3;\n var r2 = this.colorTab[idx];\n var g2 = this.colorTab[idx + 1];\n var b2 = this.colorTab[idx + 2];\n\n var er = r1 - r2;\n var eg = g1 - g2;\n var eb = b1 - b2;\n\n for (var i = (direction == 1 ? 0: ds.length - 1), end = (direction == 1 ? ds.length : 0); i !== end; i += direction) {\n var x1 = ds[i][1]; // *direction; // Should this by timesd by direction?..to make the kernel go in the opposite direction....got no idea....\n var y1 = ds[i][2];\n if (x1 + x >= 0 && x1 + x < width && y1 + y >= 0 && y1 + y < height) {\n var d = ds[i][0];\n idx = index + x1 + (y1 * width);\n idx *= 3;\n\n data[idx] = Math.max(0, Math.min(255, data[idx] + er * d));\n data[idx + 1] = Math.max(0, Math.min(255, data[idx + 1] + eg * d));\n data[idx + 2] = Math.max(0, Math.min(255, data[idx + 2] + eb * d));\n }\n }\n }\n }\n};\n\n/*\n Returns index of palette color closest to c\n*/\nGIFEncoder.prototype.findClosest = function(c, used) {\n return this.findClosestRGB((c & 0xFF0000) >> 16, (c & 0x00FF00) >> 8, (c & 0x0000FF), used);\n};\n\nGIFEncoder.prototype.findClosestRGB = function(r, g, b, used) {\n if (this.colorTab === null) return -1;\n\n if (this.neuQuant && !used) {\n return this.neuQuant.lookupRGB(r, g, b);\n }\n \n var c = b | (g << 8) | (r << 16);\n\n var minpos = 0;\n var dmin = 256 * 256 * 256;\n var len = this.colorTab.length;\n\n for (var i = 0, index = 0; i < len; index++) {\n var dr = r - (this.colorTab[i++] & 0xff);\n var dg = g - (this.colorTab[i++] & 0xff);\n var db = b - (this.colorTab[i++] & 0xff);\n var d = dr * dr + dg * dg + db * db;\n if ((!used || this.usedEntry[index]) && (d < dmin)) {\n dmin = d;\n minpos = index;\n }\n }\n\n return minpos;\n};\n\n/*\n Extracts image pixels into byte array pixels\n (removes alphachannel from canvas imagedata)\n*/\nGIFEncoder.prototype.getImagePixels = function() {\n var w = this.width;\n var h = this.height;\n this.pixels = new Uint8Array(w * h * 3);\n\n var data = this.image;\n var srcPos = 0;\n var count = 0;\n\n for (var i = 0; i < h; i++) {\n for (var j = 0; j < w; j++) {\n this.pixels[count++] = data[srcPos++];\n this.pixels[count++] = data[srcPos++];\n this.pixels[count++] = data[srcPos++];\n srcPos++;\n }\n }\n};\n\n/*\n Writes Graphic Control Extension\n*/\nGIFEncoder.prototype.writeGraphicCtrlExt = function() {\n this.out.writeByte(0x21); // extension introducer\n this.out.writeByte(0xf9); // GCE label\n this.out.writeByte(4); // data block size\n\n var transp, disp;\n if (this.transparent === null) {\n transp = 0;\n disp = 0; // dispose = no action\n } else {\n transp = 1;\n disp = 2; // force clear if using transparent color\n }\n\n if (this.dispose >= 0) {\n disp = dispose & 7; // user override\n }\n disp <<= 2;\n\n // packed fields\n this.out.writeByte(\n 0 | // 1:3 reserved\n disp | // 4:6 disposal\n 0 | // 7 user input - 0 = none\n transp // 8 transparency flag\n );\n\n this.writeShort(this.delay); // delay x 1/100 sec\n this.out.writeByte(this.transIndex); // transparent color index\n this.out.writeByte(0); // block terminator\n};\n\n/*\n Writes Image Descriptor\n*/\nGIFEncoder.prototype.writeImageDesc = function() {\n this.out.writeByte(0x2c); // image separator\n this.writeShort(0); // image position x,y = 0,0\n this.writeShort(0);\n this.writeShort(this.width); // image size\n this.writeShort(this.height);\n\n // packed fields\n if (this.firstFrame || this.globalPalette) {\n // no LCT - GCT is used for first (or only) frame\n this.out.writeByte(0);\n } else {\n // specify normal LCT\n this.out.writeByte(\n 0x80 | // 1 local color table 1=yes\n 0 | // 2 interlace - 0=no\n 0 | // 3 sorted - 0=no\n 0 | // 4-5 reserved\n this.palSize // 6-8 size of color table\n );\n }\n};\n\n/*\n Writes Logical Screen Descriptor\n*/\nGIFEncoder.prototype.writeLSD = function() {\n // logical screen size\n this.writeShort(this.width);\n this.writeShort(this.height);\n\n // packed fields\n this.out.writeByte(\n 0x80 | // 1 : global color table flag = 1 (gct used)\n 0x70 | // 2-4 : color resolution = 7\n 0x00 | // 5 : gct sort flag = 0\n this.palSize // 6-8 : gct size\n );\n\n this.out.writeByte(0); // background color index\n this.out.writeByte(0); // pixel aspect ratio - assume 1:1\n};\n\n/*\n Writes Netscape application extension to define repeat count.\n*/\nGIFEncoder.prototype.writeNetscapeExt = function() {\n this.out.writeByte(0x21); // extension introducer\n this.out.writeByte(0xff); // app extension label\n this.out.writeByte(11); // block size\n this.out.writeUTFBytes('NETSCAPE2.0'); // app id + auth code\n this.out.writeByte(3); // sub-block size\n this.out.writeByte(1); // loop sub-block id\n this.writeShort(this.repeat); // loop count (extra iterations, 0=repeat forever)\n this.out.writeByte(0); // block terminator\n};\n\n/*\n Writes color table\n*/\nGIFEncoder.prototype.writePalette = function() {\n this.out.writeBytes(this.colorTab);\n var n = (3 * 256) - this.colorTab.length;\n for (var i = 0; i < n; i++)\n this.out.writeByte(0);\n};\n\nGIFEncoder.prototype.writeShort = function(pValue) {\n this.out.writeByte(pValue & 0xFF);\n this.out.writeByte((pValue >> 8) & 0xFF);\n};\n\n/*\n Encodes and writes pixel data\n*/\nGIFEncoder.prototype.writePixels = function() {\n var enc = new LZWEncoder(this.width, this.height, this.indexedPixels, this.colorDepth);\n enc.encode(this.out);\n};\n\n/*\n Retrieves the GIF stream\n*/\nGIFEncoder.prototype.stream = function() {\n return this.out;\n};\n\nmodule.exports = GIFEncoder;\n","/*\n LZWEncoder.js\n\n Authors\n Kevin Weiner (original Java version - kweiner@fmsware.com)\n Thibault Imbert (AS3 version - bytearray.org)\n Johan Nordberg (JS version - code@johan-nordberg.com)\n\n Acknowledgements\n GIFCOMPR.C - GIF Image compression routines\n Lempel-Ziv compression based on 'compress'. GIF modifications by\n David Rowley (mgardi@watdcsu.waterloo.edu)\n GIF Image compression - modified 'compress'\n Based on: compress.c - File compression ala IEEE Computer, June 1984.\n By Authors: Spencer W. Thomas (decvax!harpo!utah-cs!utah-gr!thomas)\n Jim McKie (decvax!mcvax!jim)\n Steve Davies (decvax!vax135!petsd!peora!srd)\n Ken Turkowski (decvax!decwrl!turtlevax!ken)\n James A. Woods (decvax!ihnp4!ames!jaw)\n Joe Orost (decvax!vax135!petsd!joe)\n*/\n\nvar EOF = -1;\nvar BITS = 12;\nvar HSIZE = 5003; // 80% occupancy\nvar masks = [0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F,\n 0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF,\n 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF];\n\nfunction LZWEncoder(width, height, pixels, colorDepth) {\n var initCodeSize = Math.max(2, colorDepth);\n\n var accum = new Uint8Array(256);\n var htab = new Int32Array(HSIZE);\n var codetab = new Int32Array(HSIZE);\n\n var cur_accum, cur_bits = 0;\n var a_count;\n var free_ent = 0; // first unused entry\n var maxcode;\n\n // block compression parameters -- after all codes are used up,\n // and compression rate changes, start over.\n var clear_flg = false;\n\n // Algorithm: use open addressing double hashing (no chaining) on the\n // prefix code / next character combination. We do a variant of Knuth's\n // algorithm D (vol. 3, sec. 6.4) along with G. Knott's relatively-prime\n // secondary probe. Here, the modular division first probe is gives way\n // to a faster exclusive-or manipulation. Also do block compression with\n // an adaptive reset, whereby the code table is cleared when the compression\n // ratio decreases, but after the table fills. The variable-length output\n // codes are re-sized at this point, and a special CLEAR code is generated\n // for the decompressor. Late addition: construct the table according to\n // file size for noticeable speed improvement on small files. Please direct\n // questions about this implementation to ames!jaw.\n var g_init_bits, ClearCode, EOFCode;\n\n // Add a character to the end of the current packet, and if it is 254\n // characters, flush the packet to disk.\n function char_out(c, outs) {\n accum[a_count++] = c;\n if (a_count >= 254) flush_char(outs);\n }\n\n // Clear out the hash table\n // table clear for block compress\n function cl_block(outs) {\n cl_hash(HSIZE);\n free_ent = ClearCode + 2;\n clear_flg = true;\n output(ClearCode, outs);\n }\n\n // Reset code table\n function cl_hash(hsize) {\n for (var i = 0; i < hsize; ++i) htab[i] = -1;\n }\n\n function compress(init_bits, outs) {\n var fcode, c, i, ent, disp, hsize_reg, hshift;\n\n // Set up the globals: g_init_bits - initial number of bits\n g_init_bits = init_bits;\n\n // Set up the necessary values\n clear_flg = false;\n n_bits = g_init_bits;\n maxcode = MAXCODE(n_bits);\n\n ClearCode = 1 << (init_bits - 1);\n EOFCode = ClearCode + 1;\n free_ent = ClearCode + 2;\n\n a_count = 0; // clear packet\n\n ent = nextPixel();\n\n hshift = 0;\n for (fcode = HSIZE; fcode < 65536; fcode *= 2) ++hshift;\n hshift = 8 - hshift; // set hash code range bound\n hsize_reg = HSIZE;\n cl_hash(hsize_reg); // clear hash table\n\n output(ClearCode, outs);\n\n outer_loop: while ((c = nextPixel()) != EOF) {\n fcode = (c << BITS) + ent;\n i = (c << hshift) ^ ent; // xor hashing\n if (htab[i] === fcode) {\n ent = codetab[i];\n continue;\n } else if (htab[i] >= 0) { // non-empty slot\n disp = hsize_reg - i; // secondary hash (after G. Knott)\n if (i === 0) disp = 1;\n do {\n if ((i -= disp) < 0) i += hsize_reg;\n if (htab[i] === fcode) {\n ent = codetab[i];\n continue outer_loop;\n }\n } while (htab[i] >= 0);\n }\n output(ent, outs);\n ent = c;\n if (free_ent < 1 << BITS) {\n codetab[i] = free_ent++; // code -> hashtable\n htab[i] = fcode;\n } else {\n cl_block(outs);\n }\n }\n\n // Put out the final code.\n output(ent, outs);\n output(EOFCode, outs);\n }\n\n function encode(outs) {\n outs.writeByte(initCodeSize); // write \"initial code size\" byte\n remaining = width * height; // reset navigation variables\n curPixel = 0;\n compress(initCodeSize + 1, outs); // compress and write the pixel data\n outs.writeByte(0); // write block terminator\n }\n\n // Flush the packet to disk, and reset the accumulator\n function flush_char(outs) {\n if (a_count > 0) {\n outs.writeByte(a_count);\n outs.writeBytes(accum, 0, a_count);\n a_count = 0;\n }\n }\n\n function MAXCODE(n_bits) {\n return (1 << n_bits) - 1;\n }\n\n // Return the next pixel from the image\n function nextPixel() {\n if (remaining === 0) return EOF;\n --remaining;\n var pix = pixels[curPixel++];\n return pix & 0xff;\n }\n\n function output(code, outs) {\n cur_accum &= masks[cur_bits];\n\n if (cur_bits > 0) cur_accum |= (code << cur_bits);\n else cur_accum = code;\n\n cur_bits += n_bits;\n\n while (cur_bits >= 8) {\n char_out((cur_accum & 0xff), outs);\n cur_accum >>= 8;\n cur_bits -= 8;\n }\n\n // If the next entry is going to be too big for the code size,\n // then increase it, if possible.\n if (free_ent > maxcode || clear_flg) {\n if (clear_flg) {\n maxcode = MAXCODE(n_bits = g_init_bits);\n clear_flg = false;\n } else {\n ++n_bits;\n if (n_bits == BITS) maxcode = 1 << BITS;\n else maxcode = MAXCODE(n_bits);\n }\n }\n\n if (code == EOFCode) {\n // At EOF, write the rest of the buffer.\n while (cur_bits > 0) {\n char_out((cur_accum & 0xff), outs);\n cur_accum >>= 8;\n cur_bits -= 8;\n }\n flush_char(outs);\n }\n }\n\n this.encode = encode;\n}\n\nmodule.exports = LZWEncoder;\n","/* NeuQuant Neural-Net Quantization Algorithm\n * ------------------------------------------\n *\n * Copyright (c) 1994 Anthony Dekker\n *\n * NEUQUANT Neural-Net quantization algorithm by Anthony Dekker, 1994.\n * See \"Kohonen neural networks for optimal colour quantization\"\n * in \"Network: Computation in Neural Systems\" Vol. 5 (1994) pp 351-367.\n * for a discussion of the algorithm.\n * See also http://members.ozemail.com.au/~dekker/NEUQUANT.HTML\n *\n * Any party obtaining a copy of these files from the author, directly or\n * indirectly, is granted, free of charge, a full and unrestricted irrevocable,\n * world-wide, paid up, royalty-free, nonexclusive right and license to deal\n * in this software and documentation files (the \"Software\"), including without\n * limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,\n * and/or sell copies of the Software, and to permit persons who receive\n * copies from any such party to do so, with the only requirement being\n * that this copyright notice remain intact.\n *\n * (JavaScript port 2012 by Johan Nordberg)\n */\n\nvar ncycles = 100; // number of learning cycles\nvar netsize = 256; // number of colors used\nvar maxnetpos = netsize - 1;\n\n// defs for freq and bias\nvar netbiasshift = 4; // bias for colour values\nvar intbiasshift = 16; // bias for fractions\nvar intbias = (1 << intbiasshift);\nvar gammashift = 10;\nvar gamma = (1 << gammashift);\nvar betashift = 10;\nvar beta = (intbias >> betashift); /* beta = 1/1024 */\nvar betagamma = (intbias << (gammashift - betashift));\n\n// defs for decreasing radius factor\nvar initrad = (netsize >> 3); // for 256 cols, radius starts\nvar radiusbiasshift = 6; // at 32.0 biased by 6 bits\nvar radiusbias = (1 << radiusbiasshift);\nvar initradius = (initrad * radiusbias); //and decreases by a\nvar radiusdec = 30; // factor of 1/30 each cycle\n\n// defs for decreasing alpha factor\nvar alphabiasshift = 10; // alpha starts at 1.0\nvar initalpha = (1 << alphabiasshift);\nvar alphadec; // biased by 10 bits\n\n/* radbias and alpharadbias used for radpower calculation */\nvar radbiasshift = 8;\nvar radbias = (1 << radbiasshift);\nvar alpharadbshift = (alphabiasshift + radbiasshift);\nvar alpharadbias = (1 << alpharadbshift);\n\n// four primes near 500 - assume no image has a length so large that it is\n// divisible by all four primes\nvar prime1 = 499;\nvar prime2 = 491;\nvar prime3 = 487;\nvar prime4 = 503;\nvar minpicturebytes = (3 * prime4);\n\n/*\n Constructor: NeuQuant\n\n Arguments:\n\n pixels - array of pixels in RGB format\n samplefac - sampling factor 1 to 30 where lower is better quality\n\n >\n > pixels = [r, g, b, r, g, b, r, g, b, ..]\n >\n*/\nfunction NeuQuant(pixels, samplefac) {\n var network; // int[netsize][4]\n var netindex; // for network lookup - really 256\n\n // bias and freq arrays for learning\n var bias;\n var freq;\n var radpower;\n\n /*\n Private Method: init\n\n sets up arrays\n */\n function init() {\n network = [];\n netindex = new Int32Array(256);\n bias = new Int32Array(netsize);\n freq = new Int32Array(netsize);\n radpower = new Int32Array(netsize >> 3);\n\n var i, v;\n for (i = 0; i < netsize; i++) {\n v = (i << (netbiasshift + 8)) / netsize;\n network[i] = new Float64Array([v, v, v, 0]);\n //network[i] = [v, v, v, 0]\n freq[i] = intbias / netsize;\n bias[i] = 0;\n }\n }\n\n /*\n Private Method: unbiasnet\n\n unbiases network to give byte values 0..255 and record position i to prepare for sort\n */\n function unbiasnet() {\n for (var i = 0; i < netsize; i++) {\n network[i][0] >>= netbiasshift;\n network[i][1] >>= netbiasshift;\n network[i][2] >>= netbiasshift;\n network[i][3] = i; // record color number\n }\n }\n\n /*\n Private Method: altersingle\n\n moves neuron *i* towards biased (b,g,r) by factor *alpha*\n */\n function altersingle(alpha, i, b, g, r) {\n network[i][0] -= (alpha * (network[i][0] - b)) / initalpha;\n network[i][1] -= (alpha * (network[i][1] - g)) / initalpha;\n network[i][2] -= (alpha * (network[i][2] - r)) / initalpha;\n }\n\n /*\n Private Method: alterneigh\n\n moves neurons in *radius* around index *i* towards biased (b,g,r) by factor *alpha*\n */\n function alterneigh(radius, i, b, g, r) {\n var lo = Math.abs(i - radius);\n var hi = Math.min(i + radius, netsize);\n\n var j = i + 1;\n var k = i - 1;\n var m = 1;\n\n var p, a;\n while ((j < hi) || (k > lo)) {\n a = radpower[m++];\n\n if (j < hi) {\n p = network[j++];\n p[0] -= (a * (p[0] - b)) / alpharadbias;\n p[1] -= (a * (p[1] - g)) / alpharadbias;\n p[2] -= (a * (p[2] - r)) / alpharadbias;\n }\n\n if (k > lo) {\n p = network[k--];\n p[0] -= (a * (p[0] - b)) / alpharadbias;\n p[1] -= (a * (p[1] - g)) / alpharadbias;\n p[2] -= (a * (p[2] - r)) / alpharadbias;\n }\n }\n }\n\n /*\n Private Method: contest\n\n searches for biased BGR values\n */\n function contest(b, g, r) {\n /*\n finds closest neuron (min dist) and updates freq\n finds best neuron (min dist-bias) and returns position\n for frequently chosen neurons, freq[i] is high and bias[i] is negative\n bias[i] = gamma * ((1 / netsize) - freq[i])\n */\n\n var bestd = ~(1 << 31);\n var bestbiasd = bestd;\n var bestpos = -1;\n var bestbiaspos = bestpos;\n\n var i, n, dist, biasdist, betafreq;\n for (i = 0; i < netsize; i++) {\n n = network[i];\n\n dist = Math.abs(n[0] - b) + Math.abs(n[1] - g) + Math.abs(n[2] - r);\n if (dist < bestd) {\n bestd = dist;\n bestpos = i;\n }\n\n biasdist = dist - ((bias[i]) >> (intbiasshift - netbiasshift));\n if (biasdist < bestbiasd) {\n bestbiasd = biasdist;\n bestbiaspos = i;\n }\n\n betafreq = (freq[i] >> betashift);\n freq[i] -= betafreq;\n bias[i] += (betafreq << gammashift);\n }\n\n freq[bestpos] += beta;\n bias[bestpos] -= betagamma;\n\n return bestbiaspos;\n }\n\n /*\n Private Method: inxbuild\n\n sorts network and builds netindex[0..255]\n */\n function inxbuild() {\n var i, j, p, q, smallpos, smallval, previouscol = 0, startpos = 0;\n for (i = 0; i < netsize; i++) {\n p = network[i];\n smallpos = i;\n smallval = p[1]; // index on g\n // find smallest in i..netsize-1\n for (j = i + 1; j < netsize; j++) {\n q = network[j];\n if (q[1] < smallval) { // index on g\n smallpos = j;\n smallval = q[1]; // index on g\n }\n }\n q = network[smallpos];\n // swap p (i) and q (smallpos) entries\n if (i != smallpos) {\n j = q[0]; q[0] = p[0]; p[0] = j;\n j = q[1]; q[1] = p[1]; p[1] = j;\n j = q[2]; q[2] = p[2]; p[2] = j;\n j = q[3]; q[3] = p[3]; p[3] = j;\n }\n // smallval entry is now in position i\n\n if (smallval != previouscol) {\n netindex[previouscol] = (startpos + i) >> 1;\n for (j = previouscol + 1; j < smallval; j++)\n netindex[j] = i;\n previouscol = smallval;\n startpos = i;\n }\n }\n netindex[previouscol] = (startpos + maxnetpos) >> 1;\n for (j = previouscol + 1; j < 256; j++)\n netindex[j] = maxnetpos; // really 256\n }\n\n /*\n Private Method: inxsearch\n\n searches for BGR values 0..255 and returns a color index\n */\n function inxsearch(b, g, r) {\n var a, p, dist;\n\n var bestd = 1000; // biggest possible dist is 256*3\n var best = -1;\n\n var i = netindex[g]; // index on g\n var j = i - 1; // start at netindex[g] and work outwards\n\n while ((i < netsize) || (j >= 0)) {\n if (i < netsize) {\n p = network[i];\n dist = p[1] - g; // inx key\n if (dist >= bestd) i = netsize; // stop iter\n else {\n i++;\n if (dist < 0) dist = -dist;\n a = p[0] - b; if (a < 0) a = -a;\n dist += a;\n if (dist < bestd) {\n a = p[2] - r; if (a < 0) a = -a;\n dist += a;\n if (dist < bestd) {\n bestd = dist;\n best = p[3];\n }\n }\n }\n }\n if (j >= 0) {\n p = network[j];\n dist = g - p[1]; // inx key - reverse dif\n if (dist >= bestd) j = -1; // stop iter\n else {\n j--;\n if (dist < 0) dist = -dist;\n a = p[0] - b; if (a < 0) a = -a;\n dist += a;\n if (dist < bestd) {\n a = p[2] - r; if (a < 0) a = -a;\n dist += a;\n if (dist < bestd) {\n bestd = dist;\n best = p[3];\n }\n }\n }\n }\n }\n\n return best;\n }\n\n /*\n Private Method: learn\n\n \"Main Learning Loop\"\n */\n function learn() {\n var i;\n\n var lengthcount = pixels.length;\n var alphadec = 30 + ((samplefac - 1) / 3);\n var samplepixels = lengthcount / (3 * samplefac);\n var delta = ~~(samplepixels / ncycles);\n var alpha = initalpha;\n var radius = initradius;\n\n var rad = radius >> radiusbiasshift;\n\n if (rad <= 1) rad = 0;\n for (i = 0; i < rad; i++)\n radpower[i] = alpha * (((rad * rad - i * i) * radbias) / (rad * rad));\n\n var step;\n if (lengthcount < minpicturebytes) {\n samplefac = 1;\n step = 3;\n } else if ((lengthcount % prime1) !== 0) {\n step = 3 * prime1;\n } else if ((lengthcount % prime2) !== 0) {\n step = 3 * prime2;\n } else if ((lengthcount % prime3) !== 0) {\n step = 3 * prime3;\n } else {\n step = 3 * prime4;\n }\n\n var b, g, r, j;\n var pix = 0; // current pixel\n\n i = 0;\n while (i < samplepixels) {\n b = (pixels[pix] & 0xff) << netbiasshift;\n g = (pixels[pix + 1] & 0xff) << netbiasshift;\n r = (pixels[pix + 2] & 0xff) << netbiasshift;\n\n j = contest(b, g, r);\n\n altersingle(alpha, j, b, g, r);\n if (rad !== 0) alterneigh(rad, j, b, g, r); // alter neighbours\n\n pix += step;\n if (pix >= lengthcount) pix -= lengthcount;\n\n i++;\n\n if (delta === 0) delta = 1;\n if (i % delta === 0) {\n alpha -= alpha / alphadec;\n radius -= radius / radiusdec;\n rad = radius >> radiusbiasshift;\n\n if (rad <= 1) rad = 0;\n for (j = 0; j < rad; j++)\n radpower[j] = alpha * (((rad * rad - j * j) * radbias) / (rad * rad));\n }\n }\n }\n\n /*\n Method: buildColormap\n\n 1. initializes network\n 2. trains it\n 3. removes misconceptions\n 4. builds colorindex\n */\n function buildColormap() {\n init();\n learn();\n unbiasnet();\n inxbuild();\n }\n this.buildColormap = buildColormap;\n\n /*\n Method: getColormap\n\n builds colormap from the index\n\n returns array in the format:\n\n >\n > [r, g, b, r, g, b, r, g, b, ..]\n >\n */\n function getColormap() {\n var map = [];\n var index = [];\n\n for (var i = 0; i < netsize; i++)\n index[network[i][3]] = i;\n\n var k = 0;\n for (var l = 0; l < netsize; l++) {\n var j = index[l];\n map[k++] = (network[j][0]);\n map[k++] = (network[j][1]);\n map[k++] = (network[j][2]);\n }\n return map;\n }\n this.getColormap = getColormap;\n\n /*\n Method: lookupRGB\n\n looks for the closest *r*, *g*, *b* color in the map and\n returns its index\n */\n this.lookupRGB = inxsearch;\n}\n\nmodule.exports = NeuQuant;\n","GIFEncoder = require './GIFEncoder.js'\n\nrenderFrame = (frame) ->\n encoder = new GIFEncoder frame.width, frame.height\n\n if frame.index is 0\n encoder.writeHeader()\n else\n encoder.firstFrame = false\n\n encoder.setTransparent frame.transparent\n encoder.setRepeat frame.repeat\n encoder.setDelay frame.delay\n encoder.setQuality frame.quality\n encoder.setDither frame.dither\n encoder.setGlobalPalette frame.globalPalette\n encoder.addFrame frame.data\n encoder.finish() if frame.last\n if frame.globalPalette == true\n frame.globalPalette = encoder.getGlobalPalette()\n\n stream = encoder.stream()\n frame.data = stream.pages\n frame.cursor = stream.cursor\n frame.pageSize = stream.constructor.pageSize\n\n if frame.canTransfer\n transfer = (page.buffer for page in frame.data)\n self.postMessage frame, transfer\n else\n self.postMessage frame\n\nself.onmessage = (event) -> renderFrame event.data\n"]} \ No newline at end of file +{"version":3,"sources":["node_modules/.6.0.2@browser-pack/_prelude.js","src/GIFEncoder.js","src/LZWEncoder.js","src/TypedNeuQuant.js","src/gif.worker.coffee"],"names":["e","t","n","r","s","o","u","a","require","i","f","Error","code","l","exports","call","length","1","module","NeuQuant","LZWEncoder","ByteArray","this","page","pages","newPage","pageSize","charMap","String","fromCharCode","prototype","Uint8Array","cursor","getData","rv","p","writeByte","val","writeUTFBytes","string","charCodeAt","writeBytes","array","offset","GIFEncoder","width","height","transparent","transIndex","repeat","delay","image","no_bg_image","pixels","indexedPixels","colorDepth","colorTab","neuQuant","usedEntry","Array","palSize","dispose","firstFrame","sample","dither","globalPalette","out","setDelay","milliseconds","Math","round","setFrameRate","fps","setDispose","disposalCode","setRepeat","setTransparent","color","addFrame","imageData","bgImageData","slice","getImagePixels","analyzePixels","writeLSD","writePalette","writeNetscapeExt","writeGraphicCtrlExt","writeImageDesc","writePixels","finish","setQuality","quality","setDither","setGlobalPalette","palette","getGlobalPalette","writeHeader","len","nPix","buildColormap","getColormap","ditherPixels","replace","match","indexPixels","findClosest","pixelIndex","imgq","k","j","index","findClosestRGB","kernel","serpentine","kernels","FalseFloydSteinberg","FloydSteinberg","Stucki","Atkinson","ds","data","direction","y","x","xend","idx","r1","g1","b1","r2","g2","b2","er","eg","eb","end","x1","y1","d","max","min","c","used","g","b","lookupRGB","minpos","dmin","dr","dg","db","w","h","srcPos","count","transp","disp","writeShort","pValue","enc","encode","stream","EOF","BITS","HSIZE","masks","initCodeSize","accum","htab","Int32Array","codetab","cur_accum","cur_bits","a_count","free_ent","maxcode","clear_flg","g_init_bits","ClearCode","EOFCode","char_out","outs","flush_char","cl_block","cl_hash","output","hsize","compress","init_bits","fcode","ent","hsize_reg","hshift","n_bits","MAXCODE","nextPixel","outer_loop","remaining","curPixel","pix","ncycles","netsize","maxnetpos","netbiasshift","intbiasshift","intbias","gammashift","gamma","betashift","beta","betagamma","initrad","radiusbiasshift","radiusbias","initradius","radiusdec","alphabiasshift","initalpha","alphadec","radbiasshift","radbias","alpharadbshift","alpharadbias","prime1","prime2","prime3","prime4","minpicturebytes","samplefac","network","netindex","bias","freq","radpower","init","v","Float64Array","unbiasnet","altersingle","alpha","alterneigh","radius","lo","abs","hi","m","contest","bestd","bestbiasd","bestpos","bestbiaspos","dist","biasdist","betafreq","inxbuild","q","smallpos","smallval","previouscol","startpos","inxsearch","best","learn","lengthcount","samplepixels","delta","rad","step","map","renderFrame","frame","encoder","transfer","bg_data","last","constructor","canTransfer","ref","results","buffer","self","postMessage","onmessage","event"],"mappings":";CAAA,QAAAA,GAAAC,EAAAC,EAAAC,GAAA,QAAAC,GAAAC,EAAAC,GAAA,IAAAJ,EAAAG,GAAA,CAAA,IAAAJ,EAAAI,GAAA,CAAA,GAAAE,SAAAC,UAAA,YAAAA,OAAA,KAAAF,GAAAC,EAAA,MAAAA,GAAAF,GAAA,EAAA,IAAAI,EAAA,MAAAA,GAAAJ,GAAA,EAAA,IAAAK,GAAA,GAAAC,OAAA,uBAAAN,EAAA,IAAA,MAAAK,GAAAE,KAAA,mBAAAF,EAAA,GAAAG,GAAAX,EAAAG,IAAAS,WAAAb,GAAAI,GAAA,GAAAU,KAAAF,EAAAC,QAAA,SAAAd,GAAA,GAAAE,GAAAD,EAAAI,GAAA,GAAAL,EAAA,OAAAI,GAAAF,EAAAA,EAAAF,IAAAa,EAAAA,EAAAC,QAAAd,EAAAC,EAAAC,EAAAC,GAAA,MAAAD,GAAAG,GAAAS,QAAA,GAAAL,SAAAD,UAAA,YAAAA,OAAA,KAAA,GAAAH,GAAA,EAAAA,EAAAF,EAAAa,OAAAX,IAAAD,EAAAD,EAAAE,GAAA,OAAAD,MAAAa,GAAA,SAAAT,QAAAU,OAAAJ,SCSA,GAAAK,UAAAX,QAAA,qBACA,IAAAY,YAAAZ,QAAA,kBAEA,SAAAa,aACAC,KAAAC,MAAA,CACAD,MAAAE,QACAF,MAAAG,UAGAJ,UAAAK,SAAA,IACAL,WAAAM,UAEA,KAAA,GAAAlB,GAAA,EAAAA,EAAA,IAAAA,IACAY,UAAAM,QAAAlB,GAAAmB,OAAAC,aAAApB,EAEAY,WAAAS,UAAAL,QAAA,WACAH,KAAAE,QAAAF,KAAAC,MAAA,GAAAQ,YAAAV,UAAAK,SACAJ,MAAAU,OAAA,EAGAX,WAAAS,UAAAG,QAAA,WACA,GAAAC,IAAA,EACA,KAAA,GAAAC,GAAA,EAAAA,EAAAb,KAAAE,MAAAR,OAAAmB,IAAA,CACA,IAAA,GAAA1B,GAAA,EAAAA,EAAAY,UAAAK,SAAAjB,IAAA,CACAyB,IAAAb,UAAAM,QAAAL,KAAAE,MAAAW,GAAA1B,KAGA,MAAAyB,IAGAb,WAAAS,UAAAM,UAAA,SAAAC,KACA,GAAAf,KAAAU,QAAAX,UAAAK,SAAAJ,KAAAG,SACAH,MAAAE,MAAAF,KAAAC,MAAAD,KAAAU,UAAAK,IAGAhB,WAAAS,UAAAQ,cAAA,SAAAC,QACA,IAAA,GAAA1B,GAAA0B,OAAAvB,OAAAP,EAAA,EAAAA,EAAAI,EAAAJ,IACAa,KAAAc,UAAAG,OAAAC,WAAA/B,IAGAY,WAAAS,UAAAW,WAAA,SAAAC,MAAAC,OAAA3B,QACA,IAAA,GAAAH,GAAAG,QAAA0B,MAAA1B,OAAAP,EAAAkC,QAAA,EAAAlC,EAAAI,EAAAJ,IACAa,KAAAc,UAAAM,MAAAjC,IAGA,SAAAmC,YAAAC,MAAAC,QAEAxB,KAAAuB,QAAAA,KACAvB,MAAAwB,SAAAA,MAGAxB,MAAAyB,YAAA,IAGAzB,MAAA0B,WAAA,CAGA1B,MAAA2B,QAAA,CAGA3B,MAAA4B,MAAA,CAEA5B,MAAA6B,MAAA,IACA7B,MAAA8B,YAAA,IACA9B,MAAA+B,OAAA,IACA/B,MAAAgC,cAAA,IACAhC,MAAAiC,WAAA,IACAjC,MAAAkC,SAAA,IACAlC,MAAAmC,SAAA,IACAnC,MAAAoC,UAAA,GAAAC,MACArC,MAAAsC,QAAA,CACAtC,MAAAuC,SAAA,CACAvC,MAAAwC,WAAA,IACAxC,MAAAyC,OAAA,EACAzC,MAAA0C,OAAA,KACA1C,MAAA2C,cAAA,KAEA3C,MAAA4C,IAAA,GAAA7C,WAOAuB,WAAAd,UAAAqC,SAAA,SAAAC,cACA9C,KAAA4B,MAAAmB,KAAAC,MAAAF,aAAA,IAMAxB,YAAAd,UAAAyC,aAAA,SAAAC,KACAlD,KAAA4B,MAAAmB,KAAAC,MAAA,IAAAE,KASA5B,YAAAd,UAAA2C,WAAA,SAAAC,cACA,GAAAA,cAAA,EAAApD,KAAAuC,QAAAa,aAcA9B,YAAAd,UAAA6C,UAAA,SAAA1B,QACA3B,KAAA2B,OAAAA,OAUAL,YAAAd,UAAA8C,eAAA,SAAAC,OACAvD,KAAAyB,YAAA8B,MAQAjC,YAAAd,UAAAgD,SAAA,SAAAC,UAAAC,aACA1D,KAAA6B,MAAA6B,WACA1D,MAAA8B,YAAA2B,SACAzD,MAAAkC,SAAAlC,KAAA2C,eAAA3C,KAAA2C,cAAAgB,MAAA3D,KAAA2C,cAAA,IAEA3C,MAAA4D,gBACA5D,MAAA6D,eAEA,IAAA7D,KAAA2C,gBAAA,KAAA3C,KAAA2C,cAAA3C,KAAAkC,QAEA,IAAAlC,KAAAwC,WAAA,CACAxC,KAAA8D,UACA9D,MAAA+D,cACA,IAAA/D,KAAA2B,QAAA,EAAA,CAEA3B,KAAAgE,oBAIAhE,KAAAiE,qBACAjE,MAAAkE,gBACA,KAAAlE,KAAAwC,aAAAxC,KAAA2C,cAAA3C,KAAA+D,cACA/D,MAAAmE,aAEAnE,MAAAwC,WAAA,MAOAlB,YAAAd,UAAA4D,OAAA,WACApE,KAAA4C,IAAA9B,UAAA,IAUAQ,YAAAd,UAAA6D,WAAA,SAAAC,SACA,GAAAA,QAAA,EAAAA,QAAA,CACAtE,MAAAyC,OAAA6B,QAYAhD,YAAAd,UAAA+D,UAAA,SAAA7B,QACA,GAAAA,SAAA,KAAAA,OAAA,gBACA1C,MAAA0C,OAAAA,OAQApB,YAAAd,UAAAgE,iBAAA,SAAAC,SACAzE,KAAA2C,cAAA8B,QAQAnD,YAAAd,UAAAkE,iBAAA,WACA,MAAA1E,MAAA2C,eAAA3C,KAAA2C,cAAAgB,OAAA3D,KAAA2C,cAAAgB,MAAA,IAAA3D,KAAA2C,cAMArB,YAAAd,UAAAmE,YAAA,WACA3E,KAAA4C,IAAA5B,cAAA,UAMAM,YAAAd,UAAAqD,cAAA,WACA,GAAAe,KAAA5E,KAAA+B,OAAArC,MACA,IAAAmF,MAAAD,IAAA,CAEA,KAAA5E,KAAAkC,SAAA,CACAlC,KAAAmC,SAAA,GAAAtC,UAAAG,KAAA+B,OAAA/B,KAAAyC,OACAzC,MAAAmC,SAAA2C,eACA9E,MAAAkC,SAAAlC,KAAAmC,SAAA4C,cAIA,GAAA/E,KAAA0C,OAAA,CACA1C,KAAAgF,aAAAhF,KAAA0C,OAAAuC,QAAA,cAAA,IAAAjF,KAAA0C,OAAAwC,MAAA,iBAAA,UACA,CACAlF,KAAAmF,cAGAnF,KAAA+B,OAAA,IACA/B,MAAAiC,WAAA,CACAjC,MAAAsC,QAAA,CAGA,IAAAtC,KAAAyB,cAAA,KAAA,CACAzB,KAAA0B,WAAA1B,KAAAoF,YAAApF,KAAAyB,YAAA,KACA,KAAA,GAAA4D,YAAA,EAAAA,WAAAR,KAAAQ,aAAA,CAEA,GAAArF,KAAA8B,YAAAuD,WAAA,EAAA,IAAA,EAAA,CAEArF,KAAAgC,cAAAqD,YAAArF,KAAA0B,cASAJ,YAAAd,UAAA2E,YAAA,SAAAG,MACA,GAAAT,MAAA7E,KAAA+B,OAAArC,OAAA,CACAM,MAAAgC,cAAA,GAAAvB,YAAAoE,KACA,IAAAU,GAAA,CACA,KAAA,GAAAC,GAAA,EAAAA,EAAAX,KAAAW,IAAA,CACA,GAAAC,OAAAzF,KAAA0F,eACA1F,KAAA+B,OAAAwD,KAAA,IACAvF,KAAA+B,OAAAwD,KAAA,IACAvF,KAAA+B,OAAAwD,KAAA,IAEAvF,MAAAoC,UAAAqD,OAAA,IACAzF,MAAAgC,cAAAwD,GAAAC,OAOAnE,YAAAd,UAAAwE,aAAA,SAAAW,OAAAC,YACA,GAAAC,UACAC,sBACA,EAAA,EAAA,EAAA,IACA,EAAA,EAAA,EAAA,IACA,EAAA,EAAA,EAAA,IAEAC,iBACA,EAAA,GAAA,EAAA,IACA,EAAA,IAAA,EAAA,IACA,EAAA,GAAA,EAAA,IACA,EAAA,GAAA,EAAA,IAEAC,SACA,EAAA,GAAA,EAAA,IACA,EAAA,GAAA,EAAA,IACA,EAAA,IAAA,EAAA,IACA,EAAA,IAAA,EAAA,IACA,EAAA,GAAA,EAAA,IACA,EAAA,GAAA,EAAA,IACA,EAAA,GAAA,EAAA,IACA,EAAA,IAAA,EAAA,IACA,EAAA,IAAA,EAAA,IACA,EAAA,GAAA,EAAA,IACA,EAAA,GAAA,EAAA,IACA,EAAA,GAAA,EAAA,IAEAC,WACA,EAAA,EAAA,EAAA,IACA,EAAA,EAAA,EAAA,IACA,EAAA,GAAA,EAAA,IACA,EAAA,EAAA,EAAA,IACA,EAAA,EAAA,EAAA,IACA,EAAA,EAAA,EAAA,IAIA,KAAAN,SAAAE,QAAAF,QAAA,CACA,KAAA,6BAAAA,OAGA,GAAAO,IAAAL,QAAAF,OACA,IAAAF,OAAA,EACAjE,OAAAxB,KAAAwB,OACAD,MAAAvB,KAAAuB,MACA4E,KAAAnG,KAAA+B,MACA,IAAAqE,WAAAR,YAAA,EAAA,CAEA5F,MAAAgC,cAAA,GAAAvB,YAAAT,KAAA+B,OAAArC,OAAA,EAEA,KAAA,GAAA2G,GAAA,EAAAA,EAAA7E,OAAA6E,IAAA,CAEA,GAAAT,WAAAQ,UAAAA,WAAA,CAEA,KAAA,GAAAE,GAAAF,WAAA,EAAA,EAAA7E,MAAA,EAAAgF,KAAAH,WAAA,EAAA7E,MAAA,EAAA+E,IAAAC,KAAAD,GAAAF,UAAA,CAEAX,MAAAY,EAAA9E,MAAA+E,CAEA,IAAAE,KAAAf,MAAA,CACA,IAAAgB,IAAAN,KAAAK,IACA,IAAAE,IAAAP,KAAAK,IAAA,EACA,IAAAG,IAAAR,KAAAK,IAAA,EAGAA,KAAAxG,KAAA0F,eAAAe,GAAAC,GAAAC,GACA3G,MAAAoC,UAAAoE,KAAA,IACAxG,MAAAgC,cAAAyD,OAAAe,GACAA,MAAA,CACA,IAAAI,IAAA5G,KAAAkC,SAAAsE,IACA,IAAAK,IAAA7G,KAAAkC,SAAAsE,IAAA,EACA,IAAAM,IAAA9G,KAAAkC,SAAAsE,IAAA,EAEA,IAAAO,IAAAN,GAAAG,EACA,IAAAI,IAAAN,GAAAG,EACA,IAAAI,IAAAN,GAAAG,EAEA,KAAA,GAAA3H,GAAAiH,WAAA,EAAA,EAAAF,GAAAxG,OAAA,EAAAwH,IAAAd,WAAA,EAAAF,GAAAxG,OAAA,EAAAP,IAAA+H,IAAA/H,GAAAiH,UAAA,CACA,GAAAe,IAAAjB,GAAA/G,GAAA,EACA,IAAAiI,IAAAlB,GAAA/G,GAAA,EACA,IAAAgI,GAAAb,GAAA,GAAAa,GAAAb,EAAA/E,OAAA6F,GAAAf,GAAA,GAAAe,GAAAf,EAAA7E,OAAA,CACA,GAAA6F,GAAAnB,GAAA/G,GAAA,EACAqH,KAAAf,MAAA0B,GAAAC,GAAA7F,KACAiF,MAAA,CAEAL,MAAAK,KAAAzD,KAAAuE,IAAA,EAAAvE,KAAAwE,IAAA,IAAApB,KAAAK,KAAAO,GAAAM,GACAlB,MAAAK,IAAA,GAAAzD,KAAAuE,IAAA,EAAAvE,KAAAwE,IAAA,IAAApB,KAAAK,IAAA,GAAAQ,GAAAK,GACAlB,MAAAK,IAAA,GAAAzD,KAAAuE,IAAA,EAAAvE,KAAAwE,IAAA,IAAApB,KAAAK,IAAA,GAAAS,GAAAI,QAUA/F,YAAAd,UAAA4E,YAAA,SAAAoC,EAAAC,MACA,MAAAzH,MAAA0F,gBAAA8B,EAAA,WAAA,IAAAA,EAAA,QAAA,EAAAA,EAAA,IAAAC,MAGAnG,YAAAd,UAAAkF,eAAA,SAAA7G,EAAA6I,EAAAC,EAAAF,MACA,GAAAzH,KAAAkC,WAAA,KAAA,OAAA,CAEA,IAAAlC,KAAAmC,WAAAsF,KAAA,CACA,MAAAzH,MAAAmC,SAAAyF,UAAA/I,EAAA6I,EAAAC,GAGA,GAAAH,GAAAG,EAAAD,GAAA,EAAA7I,GAAA,EAEA,IAAAgJ,QAAA,CACA,IAAAC,MAAA,IAAA,IAAA,GACA,IAAAlD,KAAA5E,KAAAkC,SAAAxC,MAEA,KAAA,GAAAP,GAAA,EAAAsG,MAAA,EAAAtG,EAAAyF,IAAAa,QAAA,CACA,GAAAsC,IAAAlJ,GAAAmB,KAAAkC,SAAA/C,KAAA,IACA,IAAA6I,IAAAN,GAAA1H,KAAAkC,SAAA/C,KAAA,IACA,IAAA8I,IAAAN,GAAA3H,KAAAkC,SAAA/C,KAAA,IACA,IAAAkI,GAAAU,GAAAA,GAAAC,GAAAA,GAAAC,GAAAA,EACA,MAAAR,MAAAzH,KAAAoC,UAAAqD,SAAA4B,EAAAS,KAAA,CACAA,KAAAT,CACAQ,QAAApC,OAIA,MAAAoC,QAOAvG,YAAAd,UAAAoD,eAAA,WACA,GAAAsE,GAAAlI,KAAAuB,KACA,IAAA4G,GAAAnI,KAAAwB,MACAxB,MAAA+B,OAAA,GAAAtB,YAAAyH,EAAAC,EAAA,EAEA,IAAAhC,MAAAnG,KAAA6B,KACA,IAAAuG,QAAA,CACA,IAAAC,OAAA,CAEA,KAAA,GAAAlJ,GAAA,EAAAA,EAAAgJ,EAAAhJ,IAAA,CACA,IAAA,GAAAqG,GAAA,EAAAA,EAAA0C,EAAA1C,IAAA,CACAxF,KAAA+B,OAAAsG,SAAAlC,KAAAiC,SACApI,MAAA+B,OAAAsG,SAAAlC,KAAAiC,SACApI,MAAA+B,OAAAsG,SAAAlC,KAAAiC,SACAA,YAQA9G,YAAAd,UAAAyD,oBAAA,WACAjE,KAAA4C,IAAA9B,UAAA,GACAd,MAAA4C,IAAA9B,UAAA,IACAd,MAAA4C,IAAA9B,UAAA,EAEA,IAAAwH,QAAAC,IACA,IAAAvI,KAAAyB,cAAA,KAAA,CACA6G,OAAA,CACAC,MAAA,MACA,CACAD,OAAA,CACAC,MAAA,EAGA,GAAAvI,KAAAuC,SAAA,EAAA,CACAgG,KAAAvI,KAAAuC,QAAA,EAEAgG,OAAA,CAGAvI,MAAA4C,IAAA9B,UACA,EACAyH,KACA,EACAD,OAGAtI,MAAAwI,WAAAxI,KAAA4B,MACA5B,MAAA4C,IAAA9B,UAAAd,KAAA0B,WACA1B,MAAA4C,IAAA9B,UAAA,GAMAQ,YAAAd,UAAA0D,eAAA,WACAlE,KAAA4C,IAAA9B,UAAA,GACAd,MAAAwI,WAAA,EACAxI,MAAAwI,WAAA,EACAxI,MAAAwI,WAAAxI,KAAAuB,MACAvB,MAAAwI,WAAAxI,KAAAwB,OAGA,IAAAxB,KAAAwC,YAAAxC,KAAA2C,cAAA,CAEA3C,KAAA4C,IAAA9B,UAAA,OACA,CAEAd,KAAA4C,IAAA9B,UACA,IACA,EACA,EACA,EACAd,KAAAsC,UAQAhB,YAAAd,UAAAsD,SAAA,WAEA9D,KAAAwI,WAAAxI,KAAAuB,MACAvB,MAAAwI,WAAAxI,KAAAwB,OAGAxB,MAAA4C,IAAA9B,UACA,IACA,IACA,EACAd,KAAAsC,QAGAtC,MAAA4C,IAAA9B,UAAA,EACAd,MAAA4C,IAAA9B,UAAA,GAMAQ,YAAAd,UAAAwD,iBAAA,WACAhE,KAAA4C,IAAA9B,UAAA,GACAd,MAAA4C,IAAA9B,UAAA,IACAd,MAAA4C,IAAA9B,UAAA,GACAd,MAAA4C,IAAA5B,cAAA,cACAhB,MAAA4C,IAAA9B,UAAA,EACAd,MAAA4C,IAAA9B,UAAA,EACAd,MAAAwI,WAAAxI,KAAA2B,OACA3B,MAAA4C,IAAA9B,UAAA,GAMAQ,YAAAd,UAAAuD,aAAA,WACA/D,KAAA4C,IAAAzB,WAAAnB,KAAAkC,SACA,IAAAtD,GAAA,EAAA,IAAAoB,KAAAkC,SAAAxC,MACA,KAAA,GAAAP,GAAA,EAAAA,EAAAP,EAAAO,IACAa,KAAA4C,IAAA9B,UAAA,GAGAQ,YAAAd,UAAAgI,WAAA,SAAAC,QACAzI,KAAA4C,IAAA9B,UAAA2H,OAAA,IACAzI,MAAA4C,IAAA9B,UAAA2H,QAAA,EAAA,KAMAnH,YAAAd,UAAA2D,YAAA,WACA,GAAAuE,KAAA,GAAA5I,YAAAE,KAAAuB,MAAAvB,KAAAwB,OAAAxB,KAAAgC,cAAAhC,KAAAiC,WACAyG,KAAAC,OAAA3I,KAAA4C,KAMAtB,YAAAd,UAAAoI,OAAA,WACA,MAAA5I,MAAA4C,IAGAhD,QAAAJ,QAAA8B,8FC9hBA,GAAAuH,MAAA,CACA,IAAAC,MAAA,EACA,IAAAC,OAAA,IACA,IAAAC,QAAA,EAAA,EAAA,EAAA,EAAA,GAAA,GACA,GAAA,IAAA,IAAA,IAAA,KAAA,KACA,KAAA,KAAA,MAAA,MAAA,MAEA,SAAAlJ,YAAAyB,MAAAC,OAAAO,OAAAE,YACA,GAAAgH,cAAAlG,KAAAuE,IAAA,EAAArF,WAEA,IAAAiH,OAAA,GAAAzI,YAAA,IACA,IAAA0I,MAAA,GAAAC,YAAAL,MACA,IAAAM,SAAA,GAAAD,YAAAL,MAEA,IAAAO,WAAAC,SAAA,CACA,IAAAC,QACA,IAAAC,UAAA,CACA,IAAAC,QAIA,IAAAC,WAAA,KAaA,IAAAC,aAAAC,UAAAC,OAIA,SAAAC,UAAAvC,EAAAwC,MACAd,MAAAM,WAAAhC,CACA,IAAAgC,SAAA,IAAAS,WAAAD,MAKA,QAAAE,UAAAF,MACAG,QAAApB,MACAU,UAAAI,UAAA,CACAF,WAAA,IACAS,QAAAP,UAAAG,MAIA,QAAAG,SAAAE,OACA,IAAA,GAAAlL,GAAA,EAAAA,EAAAkL,QAAAlL,EAAAgK,KAAAhK,IAAA,EAGA,QAAAmL,UAAAC,UAAAP,MACA,GAAAQ,OAAAhD,EAAArI,EAAAsL,IAAAlC,KAAAmC,UAAAC,MAGAf,aAAAW,SAGAZ,WAAA,KACAiB,QAAAhB,WACAF,SAAAmB,QAAAD,OAEAf,WAAA,GAAAU,UAAA,CACAT,SAAAD,UAAA,CACAJ,UAAAI,UAAA,CAEAL,SAAA,CAEAiB,KAAAK,WAEAH,QAAA,CACA,KAAAH,MAAAzB,MAAAyB,MAAA,MAAAA,OAAA,IAAAG,MACAA,QAAA,EAAAA,MACAD,WAAA3B,KACAoB,SAAAO,UAEAN,QAAAP,UAAAG,KAEAe,YAAA,OAAAvD,EAAAsD,cAAAjC,IAAA,CACA2B,OAAAhD,GAAAsB,MAAA2B,GACAtL,GAAAqI,GAAAmD,OAAAF,GACA,IAAAtB,KAAAhK,KAAAqL,MAAA,CACAC,IAAApB,QAAAlK,EACA,cACA,IAAAgK,KAAAhK,IAAA,EAAA,CACAoJ,KAAAmC,UAAAvL,CACA,IAAAA,IAAA,EAAAoJ,KAAA,CACA,GAAA,CACA,IAAApJ,GAAAoJ,MAAA,EAAApJ,GAAAuL,SACA,IAAAvB,KAAAhK,KAAAqL,MAAA,CACAC,IAAApB,QAAAlK,EACA,SAAA4L,mBAEA5B,KAAAhK,IAAA,GAEAiL,OAAAK,IAAAT,KACAS,KAAAjD,CACA,IAAAiC,SAAA,GAAAX,KAAA,CACAO,QAAAlK,GAAAsK,UACAN,MAAAhK,GAAAqL,UACA,CACAN,SAAAF,OAKAI,OAAAK,IAAAT,KACAI,QAAAN,QAAAE,MAGA,QAAArB,QAAAqB,MACAA,KAAAlJ,UAAAmI,aACA+B,WAAAzJ,MAAAC,MACAyJ,UAAA,CACAX,UAAArB,aAAA,EAAAe,KACAA,MAAAlJ,UAAA,GAIA,QAAAmJ,YAAAD,MACA,GAAAR,QAAA,EAAA,CACAQ,KAAAlJ,UAAA0I,QACAQ,MAAA7I,WAAA+H,MAAA,EAAAM,QACAA,SAAA,GAIA,QAAAqB,SAAAD,QACA,OAAA,GAAAA,QAAA,EAIA,QAAAE,aACA,GAAAE,YAAA,EAAA,MAAAnC,OACAmC,SACA,IAAAE,KAAAnJ,OAAAkJ,WACA,OAAAC,KAAA,IAGA,QAAAd,QAAA9K,KAAA0K,MACAV,WAAAN,MAAAO,SAEA,IAAAA,SAAA,EAAAD,WAAAhK,MAAAiK,aACAD,WAAAhK,IAEAiK,WAAAqB,MAEA,OAAArB,UAAA,EAAA,CACAQ,SAAAT,UAAA,IAAAU,KACAV,aAAA,CACAC,WAAA,EAKA,GAAAE,SAAAC,SAAAC,UAAA,CACA,GAAAA,UAAA,CACAD,QAAAmB,QAAAD,OAAAhB,YACAD,WAAA,UACA,GACAiB,MACA,IAAAA,QAAA9B,KAAAY,QAAA,GAAAZ,SACAY,SAAAmB,QAAAD,SAIA,GAAAtL,MAAAwK,QAAA,CAEA,MAAAP,SAAA,EAAA,CACAQ,SAAAT,UAAA,IAAAU,KACAV,aAAA,CACAC,WAAA,EAEAU,WAAAD,OAIAhK,KAAA2I,OAAAA,OAGA/I,OAAAJ,QAAAM,oDCzLA,GAAAqL,SAAA,GACA,IAAAC,SAAA,GACA,IAAAC,WAAAD,QAAA,CAGA,IAAAE,cAAA,CACA,IAAAC,cAAA,EACA,IAAAC,SAAA,GAAAD,YACA,IAAAE,YAAA,EACA,IAAAC,OAAA,GAAAD,UACA,IAAAE,WAAA,EACA,IAAAC,MAAAJ,SAAAG,SACA,IAAAE,WAAAL,SAAAC,WAAAE,SAGA,IAAAG,SAAAV,SAAA,CACA,IAAAW,iBAAA,CACA,IAAAC,YAAA,GAAAD,eACA,IAAAE,YAAAH,QAAAE,UACA,IAAAE,WAAA,EAGA,IAAAC,gBAAA,EACA,IAAAC,WAAA,GAAAD,cACA,IAAAE,SAGA,IAAAC,cAAA,CACA,IAAAC,SAAA,GAAAD,YACA,IAAAE,gBAAAL,eAAAG,YACA,IAAAG,cAAA,GAAAD,cAIA,IAAAE,QAAA,GACA,IAAAC,QAAA,GACA,IAAAC,QAAA,GACA,IAAAC,QAAA,GACA,IAAAC,iBAAA,EAAAD,MAcA,SAAAhN,UAAAkC,OAAAgL,WACA,GAAAC,QACA,IAAAC,SAGA,IAAAC,KACA,IAAAC,KACA,IAAAC,SAOA,SAAAC,QACAL,UACAC,UAAA,GAAA7D,YAAA,IACA8D,MAAA,GAAA9D,YAAAgC,QACA+B,MAAA,GAAA/D,YAAAgC,QACAgC,UAAA,GAAAhE,YAAAgC,SAAA,EAEA,IAAAjM,GAAAmO,CACA,KAAAnO,EAAA,EAAAA,EAAAiM,QAAAjM,IAAA,CACAmO,GAAAnO,GAAAmM,aAAA,GAAAF,OACA4B,SAAA7N,GAAA,GAAAoO,eAAAD,EAAAA,EAAAA,EAAA,GAEAH,MAAAhO,GAAAqM,QAAAJ,OACA8B,MAAA/N,GAAA,GASA,QAAAqO,aACA,IAAA,GAAArO,GAAA,EAAAA,EAAAiM,QAAAjM,IAAA,CACA6N,QAAA7N,GAAA,KAAAmM,YACA0B,SAAA7N,GAAA,KAAAmM,YACA0B,SAAA7N,GAAA,KAAAmM,YACA0B,SAAA7N,GAAA,GAAAA,GASA,QAAAsO,aAAAC,MAAAvO,EAAAwI,EAAAD,EAAA7I,GACAmO,QAAA7N,GAAA,IAAAuO,OAAAV,QAAA7N,GAAA,GAAAwI,GAAAyE,SACAY,SAAA7N,GAAA,IAAAuO,OAAAV,QAAA7N,GAAA,GAAAuI,GAAA0E,SACAY,SAAA7N,GAAA,IAAAuO,OAAAV,QAAA7N,GAAA,GAAAN,GAAAuN,UAQA,QAAAuB,YAAAC,OAAAzO,EAAAwI,EAAAD,EAAA7I,GACA,GAAAgP,IAAA9K,KAAA+K,IAAA3O,EAAAyO,OACA,IAAAG,IAAAhL,KAAAwE,IAAApI,EAAAyO,OAAAxC,QAEA,IAAA5F,GAAArG,EAAA,CACA,IAAAoG,GAAApG,EAAA,CACA,IAAA6O,GAAA,CAEA,IAAAnN,GAAA5B,CACA,OAAAuG,EAAAuI,IAAAxI,EAAAsI,GAAA,CACA5O,EAAAmO,SAAAY,IAEA,IAAAxI,EAAAuI,GAAA,CACAlN,EAAAmM,QAAAxH,IACA3E,GAAA,IAAA5B,GAAA4B,EAAA,GAAA8G,GAAA8E,YACA5L,GAAA,IAAA5B,GAAA4B,EAAA,GAAA6G,GAAA+E,YACA5L,GAAA,IAAA5B,GAAA4B,EAAA,GAAAhC,GAAA4N,aAGA,GAAAlH,EAAAsI,GAAA,CACAhN,EAAAmM,QAAAzH,IACA1E,GAAA,IAAA5B,GAAA4B,EAAA,GAAA8G,GAAA8E,YACA5L,GAAA,IAAA5B,GAAA4B,EAAA,GAAA6G,GAAA+E,YACA5L,GAAA,IAAA5B,GAAA4B,EAAA,GAAAhC,GAAA4N,eAUA,QAAAwB,SAAAtG,EAAAD,EAAA7I,GAQA,GAAAqP,SAAA,GAAA,GACA,IAAAC,WAAAD,KACA,IAAAE,UAAA,CACA,IAAAC,aAAAD,OAEA,IAAAjP,GAAAP,EAAA0P,KAAAC,SAAAC,QACA,KAAArP,EAAA,EAAAA,EAAAiM,QAAAjM,IAAA,CACAP,EAAAoO,QAAA7N,EAEAmP,MAAAvL,KAAA+K,IAAAlP,EAAA,GAAA+I,GAAA5E,KAAA+K,IAAAlP,EAAA,GAAA8I,GAAA3E,KAAA+K,IAAAlP,EAAA,GAAAC,EACA,IAAAyP,KAAAJ,MAAA,CACAA,MAAAI,IACAF,SAAAjP,EAGAoP,SAAAD,MAAApB,KAAA/N,IAAAoM,aAAAD,aACA,IAAAiD,SAAAJ,UAAA,CACAA,UAAAI,QACAF,aAAAlP,EAGAqP,SAAArB,KAAAhO,IAAAwM,SACAwB,MAAAhO,IAAAqP,QACAtB,MAAA/N,IAAAqP,UAAA/C,WAGA0B,KAAAiB,UAAAxC,IACAsB,MAAAkB,UAAAvC,SAEA,OAAAwC,aAQA,QAAAI,YACA,GAAAtP,GAAAqG,EAAA3E,EAAA6N,EAAAC,SAAAC,SAAAC,YAAA,EAAAC,SAAA,CACA,KAAA3P,EAAA,EAAAA,EAAAiM,QAAAjM,IAAA,CACA0B,EAAAmM,QAAA7N,EACAwP,UAAAxP,CACAyP,UAAA/N,EAAA,EAEA,KAAA2E,EAAArG,EAAA,EAAAqG,EAAA4F,QAAA5F,IAAA,CACAkJ,EAAA1B,QAAAxH,EACA,IAAAkJ,EAAA,GAAAE,SAAA,CACAD,SAAAnJ,CACAoJ,UAAAF,EAAA,IAGAA,EAAA1B,QAAA2B,SAEA,IAAAxP,GAAAwP,SAAA,CACAnJ,EAAAkJ,EAAA,EAAAA,GAAA,GAAA7N,EAAA,EAAAA,GAAA,GAAA2E,CACAA,GAAAkJ,EAAA,EAAAA,GAAA,GAAA7N,EAAA,EAAAA,GAAA,GAAA2E,CACAA,GAAAkJ,EAAA,EAAAA,GAAA,GAAA7N,EAAA,EAAAA,GAAA,GAAA2E,CACAA,GAAAkJ,EAAA,EAAAA,GAAA,GAAA7N,EAAA,EAAAA,GAAA,GAAA2E,EAIA,GAAAoJ,UAAAC,YAAA,CACA5B,SAAA4B,aAAAC,SAAA3P,GAAA,CACA,KAAAqG,EAAAqJ,YAAA,EAAArJ,EAAAoJ,SAAApJ,IACAyH,SAAAzH,GAAArG,CACA0P,aAAAD,QACAE,UAAA3P,GAGA8N,SAAA4B,aAAAC,SAAAzD,WAAA,CACA,KAAA7F,EAAAqJ,YAAA,EAAArJ,EAAA,IAAAA,IACAyH,SAAAzH,GAAA6F,UAQA,QAAA0D,WAAApH,EAAAD,EAAA7I,GACA,GAAAI,GAAA4B,EAAAyN,IAEA,IAAAJ,OAAA,GACA,IAAAc,OAAA,CAEA,IAAA7P,GAAA8N,SAAAvF,EACA,IAAAlC,GAAArG,EAAA,CAEA,OAAAA,EAAAiM,SAAA5F,GAAA,EAAA,CACA,GAAArG,EAAAiM,QAAA,CACAvK,EAAAmM,QAAA7N,EACAmP,MAAAzN,EAAA,GAAA6G,CACA,IAAA4G,MAAAJ,MAAA/O,EAAAiM,YACA,CACAjM,GACA,IAAAmP,KAAA,EAAAA,MAAAA,IACArP,GAAA4B,EAAA,GAAA8G,CAAA,IAAA1I,EAAA,EAAAA,GAAAA,CACAqP,OAAArP,CACA,IAAAqP,KAAAJ,MAAA,CACAjP,EAAA4B,EAAA,GAAAhC,CAAA,IAAAI,EAAA,EAAAA,GAAAA,CACAqP,OAAArP,CACA,IAAAqP,KAAAJ,MAAA,CACAA,MAAAI,IACAU,MAAAnO,EAAA,MAKA,GAAA2E,GAAA,EAAA,CACA3E,EAAAmM,QAAAxH,EACA8I,MAAA5G,EAAA7G,EAAA,EACA,IAAAyN,MAAAJ,MAAA1I,GAAA,MACA,CACAA,GACA,IAAA8I,KAAA,EAAAA,MAAAA,IACArP,GAAA4B,EAAA,GAAA8G,CAAA,IAAA1I,EAAA,EAAAA,GAAAA,CACAqP,OAAArP,CACA,IAAAqP,KAAAJ,MAAA,CACAjP,EAAA4B,EAAA,GAAAhC,CAAA,IAAAI,EAAA,EAAAA,GAAAA,CACAqP,OAAArP,CACA,IAAAqP,KAAAJ,MAAA,CACAA,MAAAI,IACAU,MAAAnO,EAAA,OAOA,MAAAmO,MAQA,QAAAC,SACA,GAAA9P,EAEA,IAAA+P,aAAAnN,OAAArC,MACA,IAAA2M,UAAA,IAAAU,UAAA,GAAA,CACA,IAAAoC,cAAAD,aAAA,EAAAnC,UACA,IAAAqC,UAAAD,aAAAhE,QACA,IAAAuC,OAAAtB,SACA,IAAAwB,QAAA3B,UAEA,IAAAoD,KAAAzB,QAAA7B,eAEA,IAAAsD,KAAA,EAAAA,IAAA,CACA,KAAAlQ,EAAA,EAAAA,EAAAkQ,IAAAlQ,IACAiO,SAAAjO,GAAAuO,QAAA2B,IAAAA,IAAAlQ,EAAAA,GAAAoN,SAAA8C,IAAAA,KAEA,IAAAC,KACA,IAAAJ,YAAApC,gBAAA,CACAC,UAAA,CACAuC,MAAA,MACA,IAAAJ,YAAAxC,SAAA,EAAA,CACA4C,KAAA,EAAA5C,WACA,IAAAwC,YAAAvC,SAAA,EAAA,CACA2C,KAAA,EAAA3C,WACA,IAAAuC,YAAAtC,SAAA,EAAA,CACA0C,KAAA,EAAA1C,WACA,CACA0C,KAAA,EAAAzC,OAGA,GAAAlF,GAAAD,EAAA7I,EAAA2G,CACA,IAAA0F,KAAA,CAEA/L,GAAA,CACA,OAAAA,EAAAgQ,aAAA,CACAxH,GAAA5F,OAAAmJ,KAAA,MAAAI,YACA5D,IAAA3F,OAAAmJ,IAAA,GAAA,MAAAI,YACAzM,IAAAkD,OAAAmJ,IAAA,GAAA,MAAAI,YAEA9F,GAAAyI,QAAAtG,EAAAD,EAAA7I,EAEA4O,aAAAC,MAAAlI,EAAAmC,EAAAD,EAAA7I,EACA,IAAAwQ,MAAA,EAAA1B,WAAA0B,IAAA7J,EAAAmC,EAAAD,EAAA7I,EAEAqM,MAAAoE,IACA,IAAApE,KAAAgE,YAAAhE,KAAAgE,WAEA/P,IAEA,IAAAiQ,QAAA,EAAAA,MAAA,CACA,IAAAjQ,EAAAiQ,QAAA,EAAA,CACA1B,OAAAA,MAAArB,QACAuB,SAAAA,OAAA1B,SACAmD,KAAAzB,QAAA7B,eAEA,IAAAsD,KAAA,EAAAA,IAAA,CACA,KAAA7J,EAAA,EAAAA,EAAA6J,IAAA7J,IACA4H,SAAA5H,GAAAkI,QAAA2B,IAAAA,IAAA7J,EAAAA,GAAA+G,SAAA8C,IAAAA,QAaA,QAAAvK,iBACAuI,MACA4B,QACAzB,YACAiB,YAEAzO,KAAA8E,cAAAA,aAaA,SAAAC,eACA,GAAAwK,OACA,IAAA9J,SAEA,KAAA,GAAAtG,GAAA,EAAAA,EAAAiM,QAAAjM,IACAsG,MAAAuH,QAAA7N,GAAA,IAAAA,CAEA,IAAAoG,GAAA,CACA,KAAA,GAAAhG,GAAA,EAAAA,EAAA6L,QAAA7L,IAAA,CACA,GAAAiG,GAAAC,MAAAlG,EACAgQ,KAAAhK,KAAAyH,QAAAxH,GAAA,EACA+J,KAAAhK,KAAAyH,QAAAxH,GAAA,EACA+J,KAAAhK,KAAAyH,QAAAxH,GAAA,GAEA,MAAA+J,KAEAvP,KAAA+E,YAAAA,WAQA/E,MAAA4H,UAAAmH,UAGAnP,OAAAJ,QAAAK,kDC9aA,GAAAyB,YAAAkO,WAAAlO,YAAapC,QAAQ,kBAErBsQ,aAAc,SAACC,OACb,GAAAC,SAAAzP,KAAA2I,OAAA+G,QAAAD,SAAU,GAAIpO,YAAWmO,MAAMlO,MAAOkO,MAAMjO,OAE5C,IAAGiO,MAAMhK,QAAS,EAAlB,CACEiK,QAAQ/K,kBADV,CAGE+K,QAAQlN,WAAa,MAEvBkN,QAAQpM,eAAemM,MAAMhO,YAC7BiO,SAAQvM,WAAWsM,MAAMlN,QACzBmN,SAAQrM,UAAUoM,MAAM9N,OACxB+N,SAAQ7M,SAAS4M,MAAM7N,MACvB8N,SAAQrL,WAAWoL,MAAMnL,QACzBoL,SAAQnL,UAAUkL,MAAM/M,OACxBgN,SAAQlL,iBAAiBiL,MAAM9M,cAC/B+M,SAAQlM,SAASiM,MAAMtJ,KAAMsJ,MAAMG,QACnC,IAAoBH,MAAMI,KAA1B,CAAAH,QAAQtL,SACR,GAAGqL,MAAM9M,gBAAiB,KAA1B,CACE8M,MAAM9M,cAAgB+M,QAAQhL,mBAEhCkE,OAAS8G,QAAQ9G,QACjB6G,OAAMtJ,KAAOyC,OAAO1I,KACpBuP,OAAM/O,OAASkI,OAAOlI,MACtB+O,OAAMrP,SAAWwI,OAAOkH,YAAY1P,QAEpC,IAAGqP,MAAMM,YAAT,CACEJ,SAAA,gCAAYK,KAAAP,MAAAtJ,IAAA8J,gBAAA9Q,EAAA,EAAAyF,IAAAoL,IAAAtQ,OAAAP,EAAAyF,IAAAzF,IAAA,0BAAAc,KAAKiQ,gCACjBC,MAAKC,YAAYX,MAAOE,cAF1B,OAIEQ,MAAKC,YAAYX,QAErBU,MAAKE,UAAY,SAACC,aAAUd,aAAYc,MAAMnK","sourceRoot":"","sourcesContent":["(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o= ByteArray.pageSize) this.newPage();\n this.pages[this.page][this.cursor++] = val;\n};\n\nByteArray.prototype.writeUTFBytes = function(string) {\n for (var l = string.length, i = 0; i < l; i++)\n this.writeByte(string.charCodeAt(i));\n};\n\nByteArray.prototype.writeBytes = function(array, offset, length) {\n for (var l = length || array.length, i = offset || 0; i < l; i++)\n this.writeByte(array[i]);\n};\n\nfunction GIFEncoder(width, height) {\n // image size\n this.width = ~~width;\n this.height = ~~height;\n\n // transparent color if given\n this.transparent = null;\n\n // transparent index in color table\n this.transIndex = 0;\n\n // -1 = no repeat, 0 = forever. anything else is repeat count\n this.repeat = -1;\n\n // frame delay (hundredths)\n this.delay = 0;\n\n this.image = null; // current frame with white background\n this.no_bg_image = null; //current frame\n this.pixels = null; // BGR byte array from frame\n this.indexedPixels = null; // converted frame indexed to palette\n this.colorDepth = null; // number of bit planes\n this.colorTab = null; // RGB palette\n this.neuQuant = null; // NeuQuant instance that was used to generate this.colorTab.\n this.usedEntry = new Array(); // active palette entries\n this.palSize = 7; // color table size (bits-1)\n this.dispose = -1; // disposal code (-1 = use default)\n this.firstFrame = true;\n this.sample = 10; // default sample interval for quantizer\n this.dither = false; // default dithering\n this.globalPalette = false;\n\n this.out = new ByteArray();\n}\n\n/*\n Sets the delay time between each frame, or changes it for subsequent frames\n (applies to last frame added)\n*/\nGIFEncoder.prototype.setDelay = function(milliseconds) {\n this.delay = Math.round(milliseconds / 10);\n};\n\n/*\n Sets frame rate in frames per second.\n*/\nGIFEncoder.prototype.setFrameRate = function(fps) {\n this.delay = Math.round(100 / fps);\n};\n\n/*\n Sets the GIF frame disposal code for the last added frame and any\n subsequent frames.\n\n Default is 0 if no transparent color has been set, otherwise 2.\n*/\nGIFEncoder.prototype.setDispose = function(disposalCode) {\n if (disposalCode >= 0) this.dispose = disposalCode;\n};\n\n/*\n Sets the number of times the set of GIF frames should be played.\n\n -1 = play once\n 0 = repeat indefinitely\n\n Default is -1\n\n Must be invoked before the first image is added\n*/\n\nGIFEncoder.prototype.setRepeat = function(repeat) {\n this.repeat = repeat;\n};\n\n/*\n Sets the transparent color for the last added frame and any subsequent\n frames. Since all colors are subject to modification in the quantization\n process, the color in the final palette for each frame closest to the given\n color becomes the transparent color for that frame. May be set to null to\n indicate no transparent color.\n*/\nGIFEncoder.prototype.setTransparent = function(color) {\n this.transparent = color;\n};\n\n/*\n Adds next GIF frame. The frame is not written immediately, but is\n actually deferred until the next frame is received so that timing\n data can be inserted. Invoking finish() flushes all frames.\n*/\nGIFEncoder.prototype.addFrame = function(imageData, bgImageData) {\n this.image = bgImageData;\n this.no_bg_image = imageData;\n this.colorTab = this.globalPalette && this.globalPalette.slice ? this.globalPalette : null;\n\n this.getImagePixels(); // convert to correct format if necessary\n this.analyzePixels(); // build color table & map pixels\n\n if (this.globalPalette === true) this.globalPalette = this.colorTab;\n\n if (this.firstFrame) {\n this.writeLSD(); // logical screen descriptior\n this.writePalette(); // global color table\n if (this.repeat >= 0) {\n // use NS app extension to indicate reps\n this.writeNetscapeExt();\n }\n }\n\n this.writeGraphicCtrlExt(); // write graphic control extension\n this.writeImageDesc(); // image descriptor\n if (!this.firstFrame && !this.globalPalette) this.writePalette(); // local color table\n this.writePixels(); // encode and write pixel data\n\n this.firstFrame = false;\n};\n\n/*\n Adds final trailer to the GIF stream, if you don't call the finish method\n the GIF stream will not be valid.\n*/\nGIFEncoder.prototype.finish = function() {\n this.out.writeByte(0x3b); // gif trailer\n};\n\n/*\n Sets quality of color quantization (conversion of images to the maximum 256\n colors allowed by the GIF specification). Lower values (minimum = 1)\n produce better colors, but slow processing significantly. 10 is the\n default, and produces good color mapping at reasonable speeds. Values\n greater than 20 do not yield significant improvements in speed.\n*/\nGIFEncoder.prototype.setQuality = function(quality) {\n if (quality < 1) quality = 1;\n this.sample = quality;\n};\n\n/*\n Sets dithering method. Available are:\n - FALSE no dithering\n - TRUE or FloydSteinberg\n - FalseFloydSteinberg\n - Stucki\n - Atkinson\n You can add '-serpentine' to use serpentine scanning\n*/\nGIFEncoder.prototype.setDither = function(dither) {\n if (dither === true) dither = 'FloydSteinberg';\n this.dither = dither;\n};\n\n/*\n Sets global palette for all frames.\n You can provide TRUE to create global palette from first picture.\n Or an array of r,g,b,r,g,b,...\n*/\nGIFEncoder.prototype.setGlobalPalette = function(palette) {\n this.globalPalette = palette;\n};\n\n/*\n Returns global palette used for all frames.\n If setGlobalPalette(true) was used, then this function will return\n calculated palette after the first frame is added.\n*/\nGIFEncoder.prototype.getGlobalPalette = function() {\n return (this.globalPalette && this.globalPalette.slice && this.globalPalette.slice(0)) || this.globalPalette;\n};\n\n/*\n Writes GIF file header\n*/\nGIFEncoder.prototype.writeHeader = function() {\n this.out.writeUTFBytes(\"GIF89a\");\n};\n\n/*\n Analyzes current frame colors and creates color map.\n*/\nGIFEncoder.prototype.analyzePixels = function() {\n var len = this.pixels.length;\n var nPix = len / 3;\n\n if (!this.colorTab) {\n this.neuQuant = new NeuQuant(this.pixels, this.sample);\n this.neuQuant.buildColormap(); // create reduced palette\n this.colorTab = this.neuQuant.getColormap();\n }\n\n // map image pixels to new palette\n if (this.dither) {\n this.ditherPixels(this.dither.replace('-serpentine', ''), this.dither.match(/-serpentine/) !== null);\n } else {\n this.indexPixels();\n }\n\n this.pixels = null;\n this.colorDepth = 8;\n this.palSize = 7;\n\n // get closest match to transparent color if specified\n if (this.transparent !== null) {\n this.transIndex = this.findClosest(this.transparent, true);\n for (var pixelIndex = 0; pixelIndex < nPix; pixelIndex++) {\n\n if (this.no_bg_image[pixelIndex * 4 + 3] == 0) {\n\n this.indexedPixels[pixelIndex] = this.transIndex;\n }\n }\n }\n};\n\n/*\n Index pixels, without dithering\n*/\nGIFEncoder.prototype.indexPixels = function(imgq) {\n var nPix = this.pixels.length / 3;\n this.indexedPixels = new Uint8Array(nPix);\n var k = 0;\n for (var j = 0; j < nPix; j++) {\n var index = this.findClosestRGB(\n this.pixels[k++] & 0xff,\n this.pixels[k++] & 0xff,\n this.pixels[k++] & 0xff\n );\n this.usedEntry[index] = true;\n this.indexedPixels[j] = index;\n }\n};\n\n/*\n Taken from http://jsbin.com/iXofIji/2/edit by PAEz\n*/\nGIFEncoder.prototype.ditherPixels = function(kernel, serpentine) {\n var kernels = {\n FalseFloydSteinberg: [\n [3 / 8, 1, 0],\n [3 / 8, 0, 1],\n [2 / 8, 1, 1]\n ],\n FloydSteinberg: [\n [7 / 16, 1, 0],\n [3 / 16, -1, 1],\n [5 / 16, 0, 1],\n [1 / 16, 1, 1]\n ],\n Stucki: [\n [8 / 42, 1, 0],\n [4 / 42, 2, 0],\n [2 / 42, -2, 1],\n [4 / 42, -1, 1],\n [8 / 42, 0, 1],\n [4 / 42, 1, 1],\n [2 / 42, 2, 1],\n [1 / 42, -2, 2],\n [2 / 42, -1, 2],\n [4 / 42, 0, 2],\n [2 / 42, 1, 2],\n [1 / 42, 2, 2]\n ],\n Atkinson: [\n [1 / 8, 1, 0],\n [1 / 8, 2, 0],\n [1 / 8, -1, 1],\n [1 / 8, 0, 1],\n [1 / 8, 1, 1],\n [1 / 8, 0, 2]\n ]\n };\n\n if (!kernel || !kernels[kernel]) {\n throw 'Unknown dithering kernel: ' + kernel;\n }\n\n var ds = kernels[kernel];\n var index = 0,\n height = this.height,\n width = this.width,\n data = this.pixels;\n var direction = serpentine ? -1 : 1;\n\n this.indexedPixels = new Uint8Array(this.pixels.length / 3);\n\n for (var y = 0; y < height; y++) {\n\n if (serpentine) direction = direction * -1;\n\n for (var x = (direction == 1 ? 0 : width - 1), xend = (direction == 1 ? width : 0); x !== xend; x += direction) {\n\n index = (y * width) + x;\n // Get original colour\n var idx = index * 3;\n var r1 = data[idx];\n var g1 = data[idx + 1];\n var b1 = data[idx + 2];\n\n // Get converted colour\n idx = this.findClosestRGB(r1, g1, b1);\n this.usedEntry[idx] = true;\n this.indexedPixels[index] = idx;\n idx *= 3;\n var r2 = this.colorTab[idx];\n var g2 = this.colorTab[idx + 1];\n var b2 = this.colorTab[idx + 2];\n\n var er = r1 - r2;\n var eg = g1 - g2;\n var eb = b1 - b2;\n\n for (var i = (direction == 1 ? 0: ds.length - 1), end = (direction == 1 ? ds.length : 0); i !== end; i += direction) {\n var x1 = ds[i][1]; // *direction; // Should this by timesd by direction?..to make the kernel go in the opposite direction....got no idea....\n var y1 = ds[i][2];\n if (x1 + x >= 0 && x1 + x < width && y1 + y >= 0 && y1 + y < height) {\n var d = ds[i][0];\n idx = index + x1 + (y1 * width);\n idx *= 3;\n\n data[idx] = Math.max(0, Math.min(255, data[idx] + er * d));\n data[idx + 1] = Math.max(0, Math.min(255, data[idx + 1] + eg * d));\n data[idx + 2] = Math.max(0, Math.min(255, data[idx + 2] + eb * d));\n }\n }\n }\n }\n};\n\n/*\n Returns index of palette color closest to c\n*/\nGIFEncoder.prototype.findClosest = function(c, used) {\n return this.findClosestRGB((c & 0xFF0000) >> 16, (c & 0x00FF00) >> 8, (c & 0x0000FF), used);\n};\n\nGIFEncoder.prototype.findClosestRGB = function(r, g, b, used) {\n if (this.colorTab === null) return -1;\n\n if (this.neuQuant && !used) {\n return this.neuQuant.lookupRGB(r, g, b);\n }\n\n var c = b | (g << 8) | (r << 16);\n\n var minpos = 0;\n var dmin = 256 * 256 * 256;\n var len = this.colorTab.length;\n\n for (var i = 0, index = 0; i < len; index++) {\n var dr = r - (this.colorTab[i++] & 0xff);\n var dg = g - (this.colorTab[i++] & 0xff);\n var db = b - (this.colorTab[i++] & 0xff);\n var d = dr * dr + dg * dg + db * db;\n if ((!used || this.usedEntry[index]) && (d < dmin)) {\n dmin = d;\n minpos = index;\n }\n }\n\n return minpos;\n};\n\n/*\n Extracts image pixels into byte array pixels\n (removes alphachannel from canvas imagedata)\n*/\nGIFEncoder.prototype.getImagePixels = function() {\n var w = this.width;\n var h = this.height;\n this.pixels = new Uint8Array(w * h * 3);\n\n var data = this.image;\n var srcPos = 0;\n var count = 0;\n\n for (var i = 0; i < h; i++) {\n for (var j = 0; j < w; j++) {\n this.pixels[count++] = data[srcPos++];\n this.pixels[count++] = data[srcPos++];\n this.pixels[count++] = data[srcPos++];\n srcPos++;\n }\n }\n};\n\n/*\n Writes Graphic Control Extension\n*/\nGIFEncoder.prototype.writeGraphicCtrlExt = function() {\n this.out.writeByte(0x21); // extension introducer\n this.out.writeByte(0xf9); // GCE label\n this.out.writeByte(4); // data block size\n\n var transp, disp;\n if (this.transparent === null) {\n transp = 0;\n disp = 0; // dispose = no action\n } else {\n transp = 1;\n disp = 2; // force clear if using transparent color\n }\n\n if (this.dispose >= 0) {\n disp = this.dispose & 7; // user override\n }\n disp <<= 2;\n\n // packed fields\n this.out.writeByte(\n 0 | // 1:3 reserved\n disp | // 4:6 disposal\n 0 | // 7 user input - 0 = none\n transp // 8 transparency flag\n );\n\n this.writeShort(this.delay); // delay x 1/100 sec\n this.out.writeByte(this.transIndex); // transparent color index\n this.out.writeByte(0); // block terminator\n};\n\n/*\n Writes Image Descriptor\n*/\nGIFEncoder.prototype.writeImageDesc = function() {\n this.out.writeByte(0x2c); // image separator\n this.writeShort(0); // image position x,y = 0,0\n this.writeShort(0);\n this.writeShort(this.width); // image size\n this.writeShort(this.height);\n\n // packed fields\n if (this.firstFrame || this.globalPalette) {\n // no LCT - GCT is used for first (or only) frame\n this.out.writeByte(0);\n } else {\n // specify normal LCT\n this.out.writeByte(\n 0x80 | // 1 local color table 1=yes\n 0 | // 2 interlace - 0=no\n 0 | // 3 sorted - 0=no\n 0 | // 4-5 reserved\n this.palSize // 6-8 size of color table\n );\n }\n};\n\n/*\n Writes Logical Screen Descriptor\n*/\nGIFEncoder.prototype.writeLSD = function() {\n // logical screen size\n this.writeShort(this.width);\n this.writeShort(this.height);\n\n // packed fields\n this.out.writeByte(\n 0x80 | // 1 : global color table flag = 1 (gct used)\n 0x70 | // 2-4 : color resolution = 7\n 0x00 | // 5 : gct sort flag = 0\n this.palSize // 6-8 : gct size\n );\n\n this.out.writeByte(0); // background color index\n this.out.writeByte(0); // pixel aspect ratio - assume 1:1\n};\n\n/*\n Writes Netscape application extension to define repeat count.\n*/\nGIFEncoder.prototype.writeNetscapeExt = function() {\n this.out.writeByte(0x21); // extension introducer\n this.out.writeByte(0xff); // app extension label\n this.out.writeByte(11); // block size\n this.out.writeUTFBytes('NETSCAPE2.0'); // app id + auth code\n this.out.writeByte(3); // sub-block size\n this.out.writeByte(1); // loop sub-block id\n this.writeShort(this.repeat); // loop count (extra iterations, 0=repeat forever)\n this.out.writeByte(0); // block terminator\n};\n\n/*\n Writes color table\n*/\nGIFEncoder.prototype.writePalette = function() {\n this.out.writeBytes(this.colorTab);\n var n = (3 * 256) - this.colorTab.length;\n for (var i = 0; i < n; i++)\n this.out.writeByte(0);\n};\n\nGIFEncoder.prototype.writeShort = function(pValue) {\n this.out.writeByte(pValue & 0xFF);\n this.out.writeByte((pValue >> 8) & 0xFF);\n};\n\n/*\n Encodes and writes pixel data\n*/\nGIFEncoder.prototype.writePixels = function() {\n var enc = new LZWEncoder(this.width, this.height, this.indexedPixels, this.colorDepth);\n enc.encode(this.out);\n};\n\n/*\n Retrieves the GIF stream\n*/\nGIFEncoder.prototype.stream = function() {\n return this.out;\n};\n\nmodule.exports = GIFEncoder;\n","/*\n LZWEncoder.js\n\n Authors\n Kevin Weiner (original Java version - kweiner@fmsware.com)\n Thibault Imbert (AS3 version - bytearray.org)\n Johan Nordberg (JS version - code@johan-nordberg.com)\n\n Acknowledgements\n GIFCOMPR.C - GIF Image compression routines\n Lempel-Ziv compression based on 'compress'. GIF modifications by\n David Rowley (mgardi@watdcsu.waterloo.edu)\n GIF Image compression - modified 'compress'\n Based on: compress.c - File compression ala IEEE Computer, June 1984.\n By Authors: Spencer W. Thomas (decvax!harpo!utah-cs!utah-gr!thomas)\n Jim McKie (decvax!mcvax!jim)\n Steve Davies (decvax!vax135!petsd!peora!srd)\n Ken Turkowski (decvax!decwrl!turtlevax!ken)\n James A. Woods (decvax!ihnp4!ames!jaw)\n Joe Orost (decvax!vax135!petsd!joe)\n*/\n\nvar EOF = -1;\nvar BITS = 12;\nvar HSIZE = 5003; // 80% occupancy\nvar masks = [0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F,\n 0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF,\n 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF];\n\nfunction LZWEncoder(width, height, pixels, colorDepth) {\n var initCodeSize = Math.max(2, colorDepth);\n\n var accum = new Uint8Array(256);\n var htab = new Int32Array(HSIZE);\n var codetab = new Int32Array(HSIZE);\n\n var cur_accum, cur_bits = 0;\n var a_count;\n var free_ent = 0; // first unused entry\n var maxcode;\n\n // block compression parameters -- after all codes are used up,\n // and compression rate changes, start over.\n var clear_flg = false;\n\n // Algorithm: use open addressing double hashing (no chaining) on the\n // prefix code / next character combination. We do a variant of Knuth's\n // algorithm D (vol. 3, sec. 6.4) along with G. Knott's relatively-prime\n // secondary probe. Here, the modular division first probe is gives way\n // to a faster exclusive-or manipulation. Also do block compression with\n // an adaptive reset, whereby the code table is cleared when the compression\n // ratio decreases, but after the table fills. The variable-length output\n // codes are re-sized at this point, and a special CLEAR code is generated\n // for the decompressor. Late addition: construct the table according to\n // file size for noticeable speed improvement on small files. Please direct\n // questions about this implementation to ames!jaw.\n var g_init_bits, ClearCode, EOFCode;\n\n // Add a character to the end of the current packet, and if it is 254\n // characters, flush the packet to disk.\n function char_out(c, outs) {\n accum[a_count++] = c;\n if (a_count >= 254) flush_char(outs);\n }\n\n // Clear out the hash table\n // table clear for block compress\n function cl_block(outs) {\n cl_hash(HSIZE);\n free_ent = ClearCode + 2;\n clear_flg = true;\n output(ClearCode, outs);\n }\n\n // Reset code table\n function cl_hash(hsize) {\n for (var i = 0; i < hsize; ++i) htab[i] = -1;\n }\n\n function compress(init_bits, outs) {\n var fcode, c, i, ent, disp, hsize_reg, hshift;\n\n // Set up the globals: g_init_bits - initial number of bits\n g_init_bits = init_bits;\n\n // Set up the necessary values\n clear_flg = false;\n n_bits = g_init_bits;\n maxcode = MAXCODE(n_bits);\n\n ClearCode = 1 << (init_bits - 1);\n EOFCode = ClearCode + 1;\n free_ent = ClearCode + 2;\n\n a_count = 0; // clear packet\n\n ent = nextPixel();\n\n hshift = 0;\n for (fcode = HSIZE; fcode < 65536; fcode *= 2) ++hshift;\n hshift = 8 - hshift; // set hash code range bound\n hsize_reg = HSIZE;\n cl_hash(hsize_reg); // clear hash table\n\n output(ClearCode, outs);\n\n outer_loop: while ((c = nextPixel()) != EOF) {\n fcode = (c << BITS) + ent;\n i = (c << hshift) ^ ent; // xor hashing\n if (htab[i] === fcode) {\n ent = codetab[i];\n continue;\n } else if (htab[i] >= 0) { // non-empty slot\n disp = hsize_reg - i; // secondary hash (after G. Knott)\n if (i === 0) disp = 1;\n do {\n if ((i -= disp) < 0) i += hsize_reg;\n if (htab[i] === fcode) {\n ent = codetab[i];\n continue outer_loop;\n }\n } while (htab[i] >= 0);\n }\n output(ent, outs);\n ent = c;\n if (free_ent < 1 << BITS) {\n codetab[i] = free_ent++; // code -> hashtable\n htab[i] = fcode;\n } else {\n cl_block(outs);\n }\n }\n\n // Put out the final code.\n output(ent, outs);\n output(EOFCode, outs);\n }\n\n function encode(outs) {\n outs.writeByte(initCodeSize); // write \"initial code size\" byte\n remaining = width * height; // reset navigation variables\n curPixel = 0;\n compress(initCodeSize + 1, outs); // compress and write the pixel data\n outs.writeByte(0); // write block terminator\n }\n\n // Flush the packet to disk, and reset the accumulator\n function flush_char(outs) {\n if (a_count > 0) {\n outs.writeByte(a_count);\n outs.writeBytes(accum, 0, a_count);\n a_count = 0;\n }\n }\n\n function MAXCODE(n_bits) {\n return (1 << n_bits) - 1;\n }\n\n // Return the next pixel from the image\n function nextPixel() {\n if (remaining === 0) return EOF;\n --remaining;\n var pix = pixels[curPixel++];\n return pix & 0xff;\n }\n\n function output(code, outs) {\n cur_accum &= masks[cur_bits];\n\n if (cur_bits > 0) cur_accum |= (code << cur_bits);\n else cur_accum = code;\n\n cur_bits += n_bits;\n\n while (cur_bits >= 8) {\n char_out((cur_accum & 0xff), outs);\n cur_accum >>= 8;\n cur_bits -= 8;\n }\n\n // If the next entry is going to be too big for the code size,\n // then increase it, if possible.\n if (free_ent > maxcode || clear_flg) {\n if (clear_flg) {\n maxcode = MAXCODE(n_bits = g_init_bits);\n clear_flg = false;\n } else {\n ++n_bits;\n if (n_bits == BITS) maxcode = 1 << BITS;\n else maxcode = MAXCODE(n_bits);\n }\n }\n\n if (code == EOFCode) {\n // At EOF, write the rest of the buffer.\n while (cur_bits > 0) {\n char_out((cur_accum & 0xff), outs);\n cur_accum >>= 8;\n cur_bits -= 8;\n }\n flush_char(outs);\n }\n }\n\n this.encode = encode;\n}\n\nmodule.exports = LZWEncoder;\n","/* NeuQuant Neural-Net Quantization Algorithm\n * ------------------------------------------\n *\n * Copyright (c) 1994 Anthony Dekker\n *\n * NEUQUANT Neural-Net quantization algorithm by Anthony Dekker, 1994.\n * See \"Kohonen neural networks for optimal colour quantization\"\n * in \"Network: Computation in Neural Systems\" Vol. 5 (1994) pp 351-367.\n * for a discussion of the algorithm.\n * See also http://members.ozemail.com.au/~dekker/NEUQUANT.HTML\n *\n * Any party obtaining a copy of these files from the author, directly or\n * indirectly, is granted, free of charge, a full and unrestricted irrevocable,\n * world-wide, paid up, royalty-free, nonexclusive right and license to deal\n * in this software and documentation files (the \"Software\"), including without\n * limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,\n * and/or sell copies of the Software, and to permit persons who receive\n * copies from any such party to do so, with the only requirement being\n * that this copyright notice remain intact.\n *\n * (JavaScript port 2012 by Johan Nordberg)\n */\n\nvar ncycles = 100; // number of learning cycles\nvar netsize = 256; // number of colors used\nvar maxnetpos = netsize - 1;\n\n// defs for freq and bias\nvar netbiasshift = 4; // bias for colour values\nvar intbiasshift = 16; // bias for fractions\nvar intbias = (1 << intbiasshift);\nvar gammashift = 10;\nvar gamma = (1 << gammashift);\nvar betashift = 10;\nvar beta = (intbias >> betashift); /* beta = 1/1024 */\nvar betagamma = (intbias << (gammashift - betashift));\n\n// defs for decreasing radius factor\nvar initrad = (netsize >> 3); // for 256 cols, radius starts\nvar radiusbiasshift = 6; // at 32.0 biased by 6 bits\nvar radiusbias = (1 << radiusbiasshift);\nvar initradius = (initrad * radiusbias); //and decreases by a\nvar radiusdec = 30; // factor of 1/30 each cycle\n\n// defs for decreasing alpha factor\nvar alphabiasshift = 10; // alpha starts at 1.0\nvar initalpha = (1 << alphabiasshift);\nvar alphadec; // biased by 10 bits\n\n/* radbias and alpharadbias used for radpower calculation */\nvar radbiasshift = 8;\nvar radbias = (1 << radbiasshift);\nvar alpharadbshift = (alphabiasshift + radbiasshift);\nvar alpharadbias = (1 << alpharadbshift);\n\n// four primes near 500 - assume no image has a length so large that it is\n// divisible by all four primes\nvar prime1 = 499;\nvar prime2 = 491;\nvar prime3 = 487;\nvar prime4 = 503;\nvar minpicturebytes = (3 * prime4);\n\n/*\n Constructor: NeuQuant\n\n Arguments:\n\n pixels - array of pixels in RGB format\n samplefac - sampling factor 1 to 30 where lower is better quality\n\n >\n > pixels = [r, g, b, r, g, b, r, g, b, ..]\n >\n*/\nfunction NeuQuant(pixels, samplefac) {\n var network; // int[netsize][4]\n var netindex; // for network lookup - really 256\n\n // bias and freq arrays for learning\n var bias;\n var freq;\n var radpower;\n\n /*\n Private Method: init\n\n sets up arrays\n */\n function init() {\n network = [];\n netindex = new Int32Array(256);\n bias = new Int32Array(netsize);\n freq = new Int32Array(netsize);\n radpower = new Int32Array(netsize >> 3);\n\n var i, v;\n for (i = 0; i < netsize; i++) {\n v = (i << (netbiasshift + 8)) / netsize;\n network[i] = new Float64Array([v, v, v, 0]);\n //network[i] = [v, v, v, 0]\n freq[i] = intbias / netsize;\n bias[i] = 0;\n }\n }\n\n /*\n Private Method: unbiasnet\n\n unbiases network to give byte values 0..255 and record position i to prepare for sort\n */\n function unbiasnet() {\n for (var i = 0; i < netsize; i++) {\n network[i][0] >>= netbiasshift;\n network[i][1] >>= netbiasshift;\n network[i][2] >>= netbiasshift;\n network[i][3] = i; // record color number\n }\n }\n\n /*\n Private Method: altersingle\n\n moves neuron *i* towards biased (b,g,r) by factor *alpha*\n */\n function altersingle(alpha, i, b, g, r) {\n network[i][0] -= (alpha * (network[i][0] - b)) / initalpha;\n network[i][1] -= (alpha * (network[i][1] - g)) / initalpha;\n network[i][2] -= (alpha * (network[i][2] - r)) / initalpha;\n }\n\n /*\n Private Method: alterneigh\n\n moves neurons in *radius* around index *i* towards biased (b,g,r) by factor *alpha*\n */\n function alterneigh(radius, i, b, g, r) {\n var lo = Math.abs(i - radius);\n var hi = Math.min(i + radius, netsize);\n\n var j = i + 1;\n var k = i - 1;\n var m = 1;\n\n var p, a;\n while ((j < hi) || (k > lo)) {\n a = radpower[m++];\n\n if (j < hi) {\n p = network[j++];\n p[0] -= (a * (p[0] - b)) / alpharadbias;\n p[1] -= (a * (p[1] - g)) / alpharadbias;\n p[2] -= (a * (p[2] - r)) / alpharadbias;\n }\n\n if (k > lo) {\n p = network[k--];\n p[0] -= (a * (p[0] - b)) / alpharadbias;\n p[1] -= (a * (p[1] - g)) / alpharadbias;\n p[2] -= (a * (p[2] - r)) / alpharadbias;\n }\n }\n }\n\n /*\n Private Method: contest\n\n searches for biased BGR values\n */\n function contest(b, g, r) {\n /*\n finds closest neuron (min dist) and updates freq\n finds best neuron (min dist-bias) and returns position\n for frequently chosen neurons, freq[i] is high and bias[i] is negative\n bias[i] = gamma * ((1 / netsize) - freq[i])\n */\n\n var bestd = ~(1 << 31);\n var bestbiasd = bestd;\n var bestpos = -1;\n var bestbiaspos = bestpos;\n\n var i, n, dist, biasdist, betafreq;\n for (i = 0; i < netsize; i++) {\n n = network[i];\n\n dist = Math.abs(n[0] - b) + Math.abs(n[1] - g) + Math.abs(n[2] - r);\n if (dist < bestd) {\n bestd = dist;\n bestpos = i;\n }\n\n biasdist = dist - ((bias[i]) >> (intbiasshift - netbiasshift));\n if (biasdist < bestbiasd) {\n bestbiasd = biasdist;\n bestbiaspos = i;\n }\n\n betafreq = (freq[i] >> betashift);\n freq[i] -= betafreq;\n bias[i] += (betafreq << gammashift);\n }\n\n freq[bestpos] += beta;\n bias[bestpos] -= betagamma;\n\n return bestbiaspos;\n }\n\n /*\n Private Method: inxbuild\n\n sorts network and builds netindex[0..255]\n */\n function inxbuild() {\n var i, j, p, q, smallpos, smallval, previouscol = 0, startpos = 0;\n for (i = 0; i < netsize; i++) {\n p = network[i];\n smallpos = i;\n smallval = p[1]; // index on g\n // find smallest in i..netsize-1\n for (j = i + 1; j < netsize; j++) {\n q = network[j];\n if (q[1] < smallval) { // index on g\n smallpos = j;\n smallval = q[1]; // index on g\n }\n }\n q = network[smallpos];\n // swap p (i) and q (smallpos) entries\n if (i != smallpos) {\n j = q[0]; q[0] = p[0]; p[0] = j;\n j = q[1]; q[1] = p[1]; p[1] = j;\n j = q[2]; q[2] = p[2]; p[2] = j;\n j = q[3]; q[3] = p[3]; p[3] = j;\n }\n // smallval entry is now in position i\n\n if (smallval != previouscol) {\n netindex[previouscol] = (startpos + i) >> 1;\n for (j = previouscol + 1; j < smallval; j++)\n netindex[j] = i;\n previouscol = smallval;\n startpos = i;\n }\n }\n netindex[previouscol] = (startpos + maxnetpos) >> 1;\n for (j = previouscol + 1; j < 256; j++)\n netindex[j] = maxnetpos; // really 256\n }\n\n /*\n Private Method: inxsearch\n\n searches for BGR values 0..255 and returns a color index\n */\n function inxsearch(b, g, r) {\n var a, p, dist;\n\n var bestd = 1000; // biggest possible dist is 256*3\n var best = -1;\n\n var i = netindex[g]; // index on g\n var j = i - 1; // start at netindex[g] and work outwards\n\n while ((i < netsize) || (j >= 0)) {\n if (i < netsize) {\n p = network[i];\n dist = p[1] - g; // inx key\n if (dist >= bestd) i = netsize; // stop iter\n else {\n i++;\n if (dist < 0) dist = -dist;\n a = p[0] - b; if (a < 0) a = -a;\n dist += a;\n if (dist < bestd) {\n a = p[2] - r; if (a < 0) a = -a;\n dist += a;\n if (dist < bestd) {\n bestd = dist;\n best = p[3];\n }\n }\n }\n }\n if (j >= 0) {\n p = network[j];\n dist = g - p[1]; // inx key - reverse dif\n if (dist >= bestd) j = -1; // stop iter\n else {\n j--;\n if (dist < 0) dist = -dist;\n a = p[0] - b; if (a < 0) a = -a;\n dist += a;\n if (dist < bestd) {\n a = p[2] - r; if (a < 0) a = -a;\n dist += a;\n if (dist < bestd) {\n bestd = dist;\n best = p[3];\n }\n }\n }\n }\n }\n\n return best;\n }\n\n /*\n Private Method: learn\n\n \"Main Learning Loop\"\n */\n function learn() {\n var i;\n\n var lengthcount = pixels.length;\n var alphadec = 30 + ((samplefac - 1) / 3);\n var samplepixels = lengthcount / (3 * samplefac);\n var delta = ~~(samplepixels / ncycles);\n var alpha = initalpha;\n var radius = initradius;\n\n var rad = radius >> radiusbiasshift;\n\n if (rad <= 1) rad = 0;\n for (i = 0; i < rad; i++)\n radpower[i] = alpha * (((rad * rad - i * i) * radbias) / (rad * rad));\n\n var step;\n if (lengthcount < minpicturebytes) {\n samplefac = 1;\n step = 3;\n } else if ((lengthcount % prime1) !== 0) {\n step = 3 * prime1;\n } else if ((lengthcount % prime2) !== 0) {\n step = 3 * prime2;\n } else if ((lengthcount % prime3) !== 0) {\n step = 3 * prime3;\n } else {\n step = 3 * prime4;\n }\n\n var b, g, r, j;\n var pix = 0; // current pixel\n\n i = 0;\n while (i < samplepixels) {\n b = (pixels[pix] & 0xff) << netbiasshift;\n g = (pixels[pix + 1] & 0xff) << netbiasshift;\n r = (pixels[pix + 2] & 0xff) << netbiasshift;\n\n j = contest(b, g, r);\n\n altersingle(alpha, j, b, g, r);\n if (rad !== 0) alterneigh(rad, j, b, g, r); // alter neighbours\n\n pix += step;\n if (pix >= lengthcount) pix -= lengthcount;\n\n i++;\n\n if (delta === 0) delta = 1;\n if (i % delta === 0) {\n alpha -= alpha / alphadec;\n radius -= radius / radiusdec;\n rad = radius >> radiusbiasshift;\n\n if (rad <= 1) rad = 0;\n for (j = 0; j < rad; j++)\n radpower[j] = alpha * (((rad * rad - j * j) * radbias) / (rad * rad));\n }\n }\n }\n\n /*\n Method: buildColormap\n\n 1. initializes network\n 2. trains it\n 3. removes misconceptions\n 4. builds colorindex\n */\n function buildColormap() {\n init();\n learn();\n unbiasnet();\n inxbuild();\n }\n this.buildColormap = buildColormap;\n\n /*\n Method: getColormap\n\n builds colormap from the index\n\n returns array in the format:\n\n >\n > [r, g, b, r, g, b, r, g, b, ..]\n >\n */\n function getColormap() {\n var map = [];\n var index = [];\n\n for (var i = 0; i < netsize; i++)\n index[network[i][3]] = i;\n\n var k = 0;\n for (var l = 0; l < netsize; l++) {\n var j = index[l];\n map[k++] = (network[j][0]);\n map[k++] = (network[j][1]);\n map[k++] = (network[j][2]);\n }\n return map;\n }\n this.getColormap = getColormap;\n\n /*\n Method: lookupRGB\n\n looks for the closest *r*, *g*, *b* color in the map and\n returns its index\n */\n this.lookupRGB = inxsearch;\n}\n\nmodule.exports = NeuQuant;\n","GIFEncoder = require './GIFEncoder.js'\n\nrenderFrame = (frame) ->\n encoder = new GIFEncoder frame.width, frame.height\n\n if frame.index is 0\n encoder.writeHeader()\n else\n encoder.firstFrame = false\n\n encoder.setTransparent frame.transparent\n encoder.setDispose frame.dispose\n encoder.setRepeat frame.repeat\n encoder.setDelay frame.delay\n encoder.setQuality frame.quality\n encoder.setDither frame.dither\n encoder.setGlobalPalette frame.globalPalette\n encoder.addFrame frame.data, frame.bg_data\n encoder.finish() if frame.last\n if frame.globalPalette == true\n frame.globalPalette = encoder.getGlobalPalette()\n\n stream = encoder.stream()\n frame.data = stream.pages\n frame.cursor = stream.cursor\n frame.pageSize = stream.constructor.pageSize\n\n if frame.canTransfer\n transfer = (page.buffer for page in frame.data)\n self.postMessage frame, transfer\n else\n self.postMessage frame\n\nself.onmessage = (event) -> renderFrame event.data\n"]} \ No newline at end of file diff --git a/src/GIFEncoder.js b/src/GIFEncoder.js index 99552b6..e1f7c28 100644 --- a/src/GIFEncoder.js +++ b/src/GIFEncoder.js @@ -69,7 +69,8 @@ function GIFEncoder(width, height) { // frame delay (hundredths) this.delay = 0; - this.image = null; // current frame + this.image = null; // current frame with white background + this.no_bg_image = null; //current frame this.pixels = null; // BGR byte array from frame this.indexedPixels = null; // converted frame indexed to palette this.colorDepth = null; // number of bit planes @@ -142,9 +143,9 @@ GIFEncoder.prototype.setTransparent = function(color) { actually deferred until the next frame is received so that timing data can be inserted. Invoking finish() flushes all frames. */ -GIFEncoder.prototype.addFrame = function(imageData) { - this.image = imageData; - +GIFEncoder.prototype.addFrame = function(imageData, bgImageData) { + this.image = bgImageData; + this.no_bg_image = imageData; this.colorTab = this.globalPalette && this.globalPalette.slice ? this.globalPalette : null; this.getImagePixels(); // convert to correct format if necessary @@ -232,6 +233,9 @@ GIFEncoder.prototype.writeHeader = function() { Analyzes current frame colors and creates color map. */ GIFEncoder.prototype.analyzePixels = function() { + var len = this.pixels.length; + var nPix = len / 3; + if (!this.colorTab) { this.neuQuant = new NeuQuant(this.pixels, this.sample); this.neuQuant.buildColormap(); // create reduced palette @@ -252,6 +256,13 @@ GIFEncoder.prototype.analyzePixels = function() { // get closest match to transparent color if specified if (this.transparent !== null) { this.transIndex = this.findClosest(this.transparent, true); + for (var pixelIndex = 0; pixelIndex < nPix; pixelIndex++) { + + if (this.no_bg_image[pixelIndex * 4 + 3] == 0) { + + this.indexedPixels[pixelIndex] = this.transIndex; + } + } } }; diff --git a/src/gif.coffee b/src/gif.coffee index 15a6863..1fb4c45 100644 --- a/src/gif.coffee +++ b/src/gif.coffee @@ -170,12 +170,25 @@ class GIF extends EventEmitter @_canvas.height = @options.height ctx = @_canvas.getContext '2d' - ctx.setFill = @options.background + ctx.clearRect 0, 0, @options.width, @options.height + ctx.fillStyle = @options.background ctx.fillRect 0, 0, @options.width, @options.height + if image instanceof ImageData + ctx.putImageData image, 0, 0 + return image ctx.drawImage image, 0, 0 - return @getContextData ctx + getBgImageData: -> + bg_canvas = document.createElement 'canvas' + bg_canvas.width = @options.width + bg_canvas.height = @options.height + bg_ctx = bg_canvas.getContext '2d' + bg_ctx.fillStyle = '#ffffff'; + bg_ctx.fillRect 0, 0, @options.width, @options.height + bg_ctx.drawImage @_canvas, 0, 0 + return @getContextData bg_ctx + getTask: (frame) -> index = @frames.indexOf frame task = @@ -194,10 +207,14 @@ class GIF extends EventEmitter if frame.data? task.data = frame.data + task.data = @getContextData frame.data + task.bg_data = @getBgImageData() else if frame.context? task.data = @getContextData frame.context + task.bg_data = @getBgImageData() else if frame.image? task.data = @getImageData frame.image + task.bg_data = @getBgImageData() else throw new Error 'Invalid frame' diff --git a/src/gif.worker.coffee b/src/gif.worker.coffee index 49f4815..48352f5 100644 --- a/src/gif.worker.coffee +++ b/src/gif.worker.coffee @@ -15,7 +15,7 @@ renderFrame = (frame) -> encoder.setQuality frame.quality encoder.setDither frame.dither encoder.setGlobalPalette frame.globalPalette - encoder.addFrame frame.data + encoder.addFrame frame.data, frame.bg_data encoder.finish() if frame.last if frame.globalPalette == true frame.globalPalette = encoder.getGlobalPalette()