diff --git a/.babelrc b/.babelrc
new file mode 100644
index 0000000..2b31862
--- /dev/null
+++ b/.babelrc
@@ -0,0 +1,8 @@
+{
+	"presets": ["@babel/preset-env"],
+	"plugins": [
+		["@babel/plugin-transform-runtime", {
+			"regenerator": true
+		}]
+	]
+}
diff --git a/package-lock.json b/package-lock.json
index 1a86a26..6015a0b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,1115 @@
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@@ -6377,12 +5785,6 @@
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@@ -6412,14 +5814,32 @@
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+      "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-5.8.0.tgz",
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-        "source-map": "~0.6.1"
+        "clone-deep": "^4.0.1",
+        "wildcard": "^2.0.0"
+      }
+    },
+    "webpack-sources": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-2.3.0.tgz",
+      "integrity": "sha512-WyOdtwSvOML1kbgtXbTDnEW0jkJ7hZr/bDByIwszhWd/4XX1A3XMkrbFMsuH4+/MfLlZCUzlAdg4r7jaGKEIgQ==",
+      "dev": true,
+      "requires": {
+        "source-list-map": "^2.0.1",
+        "source-map": "^0.6.1"
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+      "dependencies": {
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+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
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+          "dev": true
+        }
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@@ -6445,9 +5865,9 @@
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+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
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@@ -6459,14 +5879,11 @@
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-      "resolved": "https://registry.npmjs.org/worker-farm/-/worker-farm-1.7.0.tgz",
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-      "dev": true,
-      "requires": {
-        "errno": "~0.1.7"
-      }
+    "wildcard": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/wildcard/-/wildcard-2.0.0.tgz",
+      "integrity": "sha512-JcKqAHLPxcdb9KM49dufGXn2x3ssnfjbcaQdLlfZsL9rH9wgDQjUtDxbo8NE0F6SFvydeu1VhZe7hZuHsB2/pw==",
+      "dev": true
     },
     "wrap-ansi": {
       "version": "5.1.0",
@@ -6485,15 +5902,6 @@
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-        "ansi-styles": {
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-          "dev": true,
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@@ -6520,22 +5928,16 @@
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-      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
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-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.1.tgz",
-      "integrity": "sha512-wNcy4NvjMYL8gogWWYAO7ZFWFfHcbdbE57tZO8e4cbpj8tfUcwrwqSl3ad8HxpYWCdXcJUCeKKZS62Av1affwQ==",
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.3.tgz",
+      "integrity": "sha512-JKhqTOwSrqNA1NY5lSztJ1GrBiUodLMmIZuLiDaMRJ+itFd+ABVE8XBjOvIWL+rSqNDC74LCSFmlb/U4UZ4hJQ==",
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+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
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@@ -6575,15 +5977,6 @@
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-          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
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-          "requires": {
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@@ -6593,10 +5986,10 @@
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-          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
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+        "path-exists": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=",
           "dev": true
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       }
@@ -6610,6 +6003,12 @@
         "camelcase": "^5.0.0",
         "decamelize": "^1.2.0"
       }
+    },
+    "yocto-queue": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",
+      "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==",
+      "dev": true
     }
   }
 }
diff --git a/package.json b/package.json
index 7ca0dbb..8d35687 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "effects"
   ],
   "scripts": {
-    "server": "webpack-dev-server --mode development --open",
+    "server": "webpack serve --mode development --env development --open",
     "dev": "webpack --mode development",
     "build": "webpack --mode production"
   },
@@ -22,27 +22,27 @@
   "homepage": "https://github.com/viliusle/miniPaint",
   "license": "MIT",
   "devDependencies": {
-    "babel-core": "^6.26.3",
-    "babel-loader": "^7.1.5",
-    "babel-preset-env": "^1.7.0",
-    "css-loader": "^3.6.0",
-    "source-map-loader": "^0.2.4",
+    "@babel/core": "^7.14.5",
+    "@babel/plugin-transform-runtime": "^7.14.5",
+    "@babel/preset-env": "^7.14.5",
+    "babel-loader": "^8.2.2",
+    "css-loader": "^5.2.6",
+    "source-map-loader": "^3.0.0",
     "style-loader": "^2.0.0",
-    "webpack": "^4.44.2",
-    "webpack-cli": "^3.3.12",
+    "webpack": "^5.38.1",
+    "webpack-cli": "^4.7.2",
     "webpack-dev-server": "^3.11.2"
   },
   "dependencies": {
+    "@babel/runtime": "^7.14.5",
     "alertifyjs": "^1.13.1",
-    "babel-polyfill": "^6.26.0",
     "blueimp-canvas-to-blob": "^3.28.0",
     "exif-js": "^2.3.0",
-    "file-saver": "^1.3.3",
+    "file-saver": "^2.0.5",
     "gif.js.optimized": "^1.0.1",
     "hermite-resize": "git+https://github.com/viliusle/Hermite-resize.git",
     "jquery": "^3.5.1",
-    "pica": "^5.3.0",
-    "terser": "^3.17.0",
+    "pica": "^7.0.0",
     "uuid": "^8.3.2",
     "webfontloader": "^1.6.28"
   }
diff --git a/src/js/libs/gifjs/gif.js b/src/js/libs/gifjs/gif.js
deleted file mode 100644
index f17a5c2..0000000
--- a/src/js/libs/gifjs/gif.js
+++ /dev/null
@@ -1,2 +0,0 @@
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\ No newline at end of file
diff --git a/src/js/libs/gifjs/gif.js.map b/src/js/libs/gifjs/gif.js.map
deleted file mode 100644
index 779d964..0000000
--- a/src/js/libs/gifjs/gif.js.map
+++ /dev/null
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__webpack_require__(2);\n\t\n\tGIF = (function(superClass) {\n\t  var defaults, frameDefaults;\n\t\n\t  extend(GIF, superClass);\n\t\n\t  defaults = {\n\t    workerScript: 'gif.worker.js',\n\t    workers: 2,\n\t    repeat: 0,\n\t    background: '#fff',\n\t    quality: 10,\n\t    width: null,\n\t    height: null,\n\t    transparent: null,\n\t    debug: false\n\t  };\n\t\n\t  frameDefaults = {\n\t    delay: 500,\n\t    copy: false\n\t  };\n\t\n\t  function GIF(options) {\n\t    var base, key, value;\n\t    this.running = false;\n\t    this.options = {};\n\t    this.frames = [];\n\t    this.groups = new Map();\n\t    this.freeWorkers = [];\n\t    this.activeWorkers = [];\n\t    this.setOptions(options);\n\t    for (key in defaults) {\n\t      value = defaults[key];\n\t      if ((base = this.options)[key] == null) {\n\t        base[key] = value;\n\t      }\n\t    }\n\t  }\n\t\n\t  GIF.prototype.setOption = function(key, value) {\n\t    this.options[key] = value;\n\t    if ((this._canvas != null) && (key === 'width' || key === 'height')) {\n\t      return this._canvas[key] = value;\n\t    }\n\t  };\n\t\n\t  GIF.prototype.setOptions = function(options) {\n\t    var key, results, value;\n\t    results = [];\n\t    for (key in options) {\n\t      if (!hasProp.call(options, key)) continue;\n\t      value = options[key];\n\t      results.push(this.setOption(key, value));\n\t    }\n\t    return results;\n\t  };\n\t\n\t  GIF.prototype.addFrame = function(image, options) {\n\t    var frame, index, key;\n\t    if (options == null) {\n\t      options = {};\n\t    }\n\t    frame = {};\n\t    frame.transparent = this.options.transparent;\n\t    for (key in frameDefaults) {\n\t      frame[key] = options[key] || frameDefaults[key];\n\t    }\n\t    if (this.options.width == null) {\n\t      this.setOption('width', image.width);\n\t    }\n\t    if (this.options.height == null) {\n\t      this.setOption('height', image.height);\n\t    }\n\t    if ((typeof ImageData !== \"undefined\" && ImageData !== null) && image instanceof ImageData) {\n\t      frame.data = image.data;\n\t    } else if (((typeof CanvasRenderingContext2D !== \"undefined\" && CanvasRenderingContext2D !== null) && image instanceof CanvasRenderingContext2D) || ((typeof WebGLRenderingContext !== \"undefined\" && WebGLRenderingContext !== null) && image instanceof WebGLRenderingContext)) {\n\t      if (options.copy) {\n\t        frame.data = this.getContextData(image);\n\t      } else {\n\t        frame.context = image;\n\t      }\n\t    } else if (image.childNodes != null) {\n\t      if (options.copy) {\n\t        frame.data = this.getImageData(image);\n\t      } else {\n\t        frame.image = image;\n\t      }\n\t    } else {\n\t      throw new Error('Invalid image');\n\t    }\n\t    index = this.frames.length;\n\t    if (index > 0 && frame.data) {\n\t      if (this.groups.has(frame.data)) {\n\t        this.groups.get(frame.data).push(index);\n\t      } else {\n\t        this.groups.set(frame.data, [index]);\n\t      }\n\t    }\n\t    return this.frames.push(frame);\n\t  };\n\t\n\t  GIF.prototype.render = function() {\n\t    var i, j, numWorkers, ref;\n\t    if (this.running) {\n\t      throw new Error('Already running');\n\t    }\n\t    if ((this.options.width == null) || (this.options.height == null)) {\n\t      throw new Error('Width and height must be set prior to rendering');\n\t    }\n\t    this.running = true;\n\t    this.nextFrame = 0;\n\t    this.finishedFrames = 0;\n\t    this.imageParts = (function() {\n\t      var j, ref, results;\n\t      results = [];\n\t      for (i = j = 0, ref = this.frames.length; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) {\n\t        results.push(null);\n\t      }\n\t      return results;\n\t    }).call(this);\n\t    numWorkers = this.spawnWorkers();\n\t    if (this.options.globalPalette === true) {\n\t      this.renderNextFrame();\n\t    } else {\n\t      for (i = j = 0, ref = numWorkers; 0 <= ref ? j < ref : j > ref; i = 0 <= ref ? ++j : --j) {\n\t        this.renderNextFrame();\n\t      }\n\t    }\n\t    this.emit('start');\n\t    return this.emit('progress', 0);\n\t  };\n\t\n\t  GIF.prototype.abort = function() {\n\t    var worker;\n\t    while (true) {\n\t      worker = this.activeWorkers.shift();\n\t      if (worker == null) {\n\t        break;\n\t      }\n\t      this.log(\"killing active worker\");\n\t      worker.terminate();\n\t    }\n\t    this.running = false;\n\t    return this.emit('abort');\n\t  };\n\t\n\t  GIF.prototype.spawnWorkers = function() {\n\t    var j, numWorkers, ref, results;\n\t    numWorkers = Math.min(this.options.workers, this.frames.length);\n\t    (function() {\n\t      results = [];\n\t      for (var j = ref = this.freeWorkers.length; ref <= numWorkers ? j < numWorkers : j > numWorkers; ref <= numWorkers ? j++ : j--){ results.push(j); }\n\t      return results;\n\t    }).apply(this).forEach((function(_this) {\n\t      return function(i) {\n\t        var worker;\n\t        _this.log(\"spawning worker \" + i);\n\t        worker = new Worker(_this.options.workerScript);\n\t        worker.onmessage = function(event) {\n\t          _this.activeWorkers.splice(_this.activeWorkers.indexOf(worker), 1);\n\t          _this.freeWorkers.push(worker);\n\t          return _this.frameFinished(event.data, false);\n\t        };\n\t        return _this.freeWorkers.push(worker);\n\t      };\n\t    })(this));\n\t    return numWorkers;\n\t  };\n\t\n\t  GIF.prototype.frameFinished = function(frame, duplicate) {\n\t    var i, indexOfDuplicate, indexOfFirstInGroup, j, ref;\n\t    this.finishedFrames++;\n\t    if (!duplicate) {\n\t      this.log(\"frame \" + (frame.index + 1) + \" finished - \" + this.activeWorkers.length + \" active\");\n\t      this.emit('progress', this.finishedFrames / this.frames.length);\n\t      this.imageParts[frame.index] = frame;\n\t    } else {\n\t      indexOfDuplicate = this.frames.indexOf(frame);\n\t      indexOfFirstInGroup = this.groups.get(frame.data)[0];\n\t      this.log(\"frame \" + (indexOfDuplicate + 1) + \" is duplicate of \" + indexOfFirstInGroup + \" - \" + this.activeWorkers.length + \" active\");\n\t      this.imageParts[indexOfDuplicate] = {\n\t        indexOfFirstInGroup: indexOfFirstInGroup\n\t      };\n\t    }\n\t    if (this.options.globalPalette === true && !duplicate) {\n\t      this.options.globalPalette = frame.globalPalette;\n\t      this.log(\"global palette analyzed\");\n\t      if (this.frames.length > 2) {\n\t        for (i = j = 1, ref = this.freeWorkers.length; 1 <= ref ? j < ref : j > ref; i = 1 <= ref ? ++j : --j) {\n\t          this.renderNextFrame();\n\t        }\n\t      }\n\t    }\n\t    if (indexOf.call(this.imageParts, null) >= 0) {\n\t      return this.renderNextFrame();\n\t    } else {\n\t      return this.finishRendering();\n\t    }\n\t  };\n\t\n\t  GIF.prototype.finishRendering = function() {\n\t    var data, frame, i, image, index, j, k, l, len, len1, len2, len3, len4, m, offset, page, ref, ref1, ref2, ref3;\n\t    ref = this.imageParts;\n\t    for (index = j = 0, len1 = ref.length; j < len1; index = ++j) {\n\t      frame = ref[index];\n\t      if (frame.indexOfFirstInGroup) {\n\t        this.imageParts[index] = this.imageParts[frame.indexOfFirstInGroup];\n\t      }\n\t    }\n\t    len = 0;\n\t    ref1 = this.imageParts;\n\t    for (k = 0, len2 = ref1.length; k < len2; k++) {\n\t      frame = ref1[k];\n\t      len += (frame.data.length - 1) * frame.pageSize + frame.cursor;\n\t    }\n\t    len += frame.pageSize - frame.cursor;\n\t    this.log(\"rendering finished - filesize \" + (Math.round(len / 1000)) + \"kb\");\n\t    data = new Uint8Array(len);\n\t    offset = 0;\n\t    ref2 = this.imageParts;\n\t    for (l = 0, len3 = ref2.length; l < len3; l++) {\n\t      frame = ref2[l];\n\t      ref3 = frame.data;\n\t      for (i = m = 0, len4 = ref3.length; m < len4; i = ++m) {\n\t        page = ref3[i];\n\t        data.set(page, offset);\n\t        if (i === frame.data.length - 1) {\n\t          offset += frame.cursor;\n\t        } else {\n\t          offset += frame.pageSize;\n\t        }\n\t      }\n\t    }\n\t    image = new Blob([data], {\n\t      type: 'image/gif'\n\t    });\n\t    return this.emit('finished', image, data);\n\t  };\n\t\n\t  GIF.prototype.renderNextFrame = function() {\n\t    var frame, index, task, worker;\n\t    if (this.freeWorkers.length === 0) {\n\t      throw new Error('No free workers');\n\t    }\n\t    if (this.nextFrame >= this.frames.length) {\n\t      return;\n\t    }\n\t    frame = this.frames[this.nextFrame++];\n\t    index = this.frames.indexOf(frame);\n\t    if (index > 0 && this.groups.has(frame.data) && this.groups.get(frame.data)[0] !== index) {\n\t      setTimeout((function(_this) {\n\t        return function() {\n\t          return _this.frameFinished(frame, true);\n\t        };\n\t      })(this), 0);\n\t      return;\n\t    }\n\t    worker = this.freeWorkers.shift();\n\t    task = this.getTask(frame);\n\t    this.log(\"starting frame \" + (task.index + 1) + \" of \" + this.frames.length);\n\t    this.activeWorkers.push(worker);\n\t    return worker.postMessage(task);\n\t  };\n\t\n\t  GIF.prototype.getContextData = function(ctx) {\n\t    return ctx.getImageData(0, 0, this.options.width, this.options.height).data;\n\t  };\n\t\n\t  GIF.prototype.getImageData = function(image) {\n\t    var ctx;\n\t    if (this._canvas == null) {\n\t      this._canvas = document.createElement('canvas');\n\t      this._canvas.width = this.options.width;\n\t      this._canvas.height = this.options.height;\n\t    }\n\t    ctx = this._canvas.getContext('2d');\n\t    ctx.setFill = this.options.background;\n\t    ctx.fillRect(0, 0, this.options.width, this.options.height);\n\t    ctx.drawImage(image, 0, 0);\n\t    return this.getContextData(ctx);\n\t  };\n\t\n\t  GIF.prototype.getTask = function(frame) {\n\t    var index, task;\n\t    index = this.frames.indexOf(frame);\n\t    task = {\n\t      index: index,\n\t      last: index === (this.frames.length - 1),\n\t      delay: frame.delay,\n\t      transparent: frame.transparent,\n\t      width: this.options.width,\n\t      height: this.options.height,\n\t      quality: this.options.quality,\n\t      dither: this.options.dither,\n\t      globalPalette: this.options.globalPalette,\n\t      repeat: this.options.repeat,\n\t      canTransfer: true\n\t    };\n\t    if (frame.data != null) {\n\t      task.data = frame.data;\n\t    } else if (frame.context != null) {\n\t      task.data = this.getContextData(frame.context);\n\t    } else if (frame.image != null) {\n\t      task.data = this.getImageData(frame.image);\n\t    } else {\n\t      throw new Error('Invalid frame');\n\t    }\n\t    return task;\n\t  };\n\t\n\t  GIF.prototype.log = function(msg) {\n\t    if (this.options.debug) {\n\t      return console.log(msg);\n\t    }\n\t  };\n\t\n\t  return GIF;\n\t\n\t})(EventEmitter);\n\t\n\tmodule.exports = GIF;\n\n\n/***/ },\n/* 1 */\n/***/ function(module, exports) {\n\n\t// Copyright Joyent, Inc. and other Node contributors.\n\t//\n\t// Permission is hereby granted, free of charge, to any person obtaining a\n\t// copy of this software and associated documentation files (the\n\t// \"Software\"), to deal in the Software without restriction, including\n\t// without limitation the rights to use, copy, modify, merge, publish,\n\t// distribute, sublicense, and/or sell copies of the Software, and to permit\n\t// persons to whom the Software is furnished to do so, subject to the\n\t// following conditions:\n\t//\n\t// The above copyright notice and this permission notice shall be included\n\t// in all copies or substantial portions of the Software.\n\t//\n\t// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n\t// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n\t// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n\t// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n\t// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n\t// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n\t// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\t\n\tfunction EventEmitter() {\n\t  this._events = this._events || {};\n\t  this._maxListeners = this._maxListeners || undefined;\n\t}\n\tmodule.exports = EventEmitter;\n\t\n\t// Backwards-compat with node 0.10.x\n\tEventEmitter.EventEmitter = EventEmitter;\n\t\n\tEventEmitter.prototype._events = undefined;\n\tEventEmitter.prototype._maxListeners = undefined;\n\t\n\t// By default EventEmitters will print a warning if more than 10 listeners are\n\t// added to it. This is a useful default which helps finding memory leaks.\n\tEventEmitter.defaultMaxListeners = 10;\n\t\n\t// Obviously not all Emitters should be limited to 10. This function allows\n\t// that to be increased. Set to zero for unlimited.\n\tEventEmitter.prototype.setMaxListeners = function(n) {\n\t  if (!isNumber(n) || n < 0 || isNaN(n))\n\t    throw TypeError('n must be a positive number');\n\t  this._maxListeners = n;\n\t  return this;\n\t};\n\t\n\tEventEmitter.prototype.emit = function(type) {\n\t  var er, handler, len, args, i, listeners;\n\t\n\t  if (!this._events)\n\t    this._events = {};\n\t\n\t  // If there is no 'error' event listener then throw.\n\t  if (type === 'error') {\n\t    if (!this._events.error ||\n\t        (isObject(this._events.error) && !this._events.error.length)) {\n\t      er = arguments[1];\n\t      if (er instanceof Error) {\n\t        throw er; // Unhandled 'error' event\n\t      } else {\n\t        // At least give some kind of context to the user\n\t        var err = new Error('Uncaught, unspecified \"error\" event. (' + er + ')');\n\t        err.context = er;\n\t        throw err;\n\t      }\n\t    }\n\t  }\n\t\n\t  handler = this._events[type];\n\t\n\t  if (isUndefined(handler))\n\t    return false;\n\t\n\t  if (isFunction(handler)) {\n\t    switch (arguments.length) {\n\t      // fast cases\n\t      case 1:\n\t        handler.call(this);\n\t        break;\n\t      case 2:\n\t        handler.call(this, arguments[1]);\n\t        break;\n\t      case 3:\n\t        handler.call(this, arguments[1], arguments[2]);\n\t        break;\n\t      // slower\n\t      default:\n\t        args = Array.prototype.slice.call(arguments, 1);\n\t        handler.apply(this, args);\n\t    }\n\t  } else if (isObject(handler)) {\n\t    args = Array.prototype.slice.call(arguments, 1);\n\t    listeners = handler.slice();\n\t    len = listeners.length;\n\t    for (i = 0; i < len; i++)\n\t      listeners[i].apply(this, args);\n\t  }\n\t\n\t  return true;\n\t};\n\t\n\tEventEmitter.prototype.addListener = function(type, listener) {\n\t  var m;\n\t\n\t  if (!isFunction(listener))\n\t    throw TypeError('listener must be a function');\n\t\n\t  if (!this._events)\n\t    this._events = {};\n\t\n\t  // To avoid recursion in the case that type === \"newListener\"! Before\n\t  // adding it to the listeners, first emit \"newListener\".\n\t  if (this._events.newListener)\n\t    this.emit('newListener', type,\n\t              isFunction(listener.listener) ?\n\t              listener.listener : listener);\n\t\n\t  if (!this._events[type])\n\t    // Optimize the case of one listener. Don't need the extra array object.\n\t    this._events[type] = listener;\n\t  else if (isObject(this._events[type]))\n\t    // If we've already got an array, just append.\n\t    this._events[type].push(listener);\n\t  else\n\t    // Adding the second element, need to change to array.\n\t    this._events[type] = [this._events[type], listener];\n\t\n\t  // Check for listener leak\n\t  if (isObject(this._events[type]) && !this._events[type].warned) {\n\t    if (!isUndefined(this._maxListeners)) {\n\t      m = this._maxListeners;\n\t    } else {\n\t      m = EventEmitter.defaultMaxListeners;\n\t    }\n\t\n\t    if (m && m > 0 && this._events[type].length > m) {\n\t      this._events[type].warned = true;\n\t      console.error('(node) warning: possible EventEmitter memory ' +\n\t                    'leak detected. %d listeners added. ' +\n\t                    'Use emitter.setMaxListeners() to increase limit.',\n\t                    this._events[type].length);\n\t      if (typeof console.trace === 'function') {\n\t        // not supported in IE 10\n\t        console.trace();\n\t      }\n\t    }\n\t  }\n\t\n\t  return this;\n\t};\n\t\n\tEventEmitter.prototype.on = EventEmitter.prototype.addListener;\n\t\n\tEventEmitter.prototype.once = function(type, listener) {\n\t  if (!isFunction(listener))\n\t    throw TypeError('listener must be a function');\n\t\n\t  var fired = false;\n\t\n\t  function g() {\n\t    this.removeListener(type, g);\n\t\n\t    if (!fired) {\n\t      fired = true;\n\t      listener.apply(this, arguments);\n\t    }\n\t  }\n\t\n\t  g.listener = listener;\n\t  this.on(type, g);\n\t\n\t  return this;\n\t};\n\t\n\t// emits a 'removeListener' event iff the listener was removed\n\tEventEmitter.prototype.removeListener = function(type, listener) {\n\t  var list, position, length, i;\n\t\n\t  if (!isFunction(listener))\n\t    throw TypeError('listener must be a function');\n\t\n\t  if (!this._events || !this._events[type])\n\t    return this;\n\t\n\t  list = this._events[type];\n\t  length = list.length;\n\t  position = -1;\n\t\n\t  if (list === listener ||\n\t      (isFunction(list.listener) && list.listener === listener)) {\n\t    delete this._events[type];\n\t    if (this._events.removeListener)\n\t      this.emit('removeListener', type, listener);\n\t\n\t  } else if (isObject(list)) {\n\t    for (i = length; i-- > 0;) {\n\t      if (list[i] === listener ||\n\t          (list[i].listener && list[i].listener === listener)) {\n\t        position = i;\n\t        break;\n\t      }\n\t    }\n\t\n\t    if (position < 0)\n\t      return this;\n\t\n\t    if (list.length === 1) {\n\t      list.length = 0;\n\t      delete this._events[type];\n\t    } else {\n\t      list.splice(position, 1);\n\t    }\n\t\n\t    if (this._events.removeListener)\n\t      this.emit('removeListener', type, listener);\n\t  }\n\t\n\t  return this;\n\t};\n\t\n\tEventEmitter.prototype.removeAllListeners = function(type) {\n\t  var key, listeners;\n\t\n\t  if (!this._events)\n\t    return this;\n\t\n\t  // not listening for removeListener, no need to emit\n\t  if (!this._events.removeListener) {\n\t    if (arguments.length === 0)\n\t      this._events = {};\n\t    else if (this._events[type])\n\t      delete this._events[type];\n\t    return this;\n\t  }\n\t\n\t  // emit removeListener for all listeners on all events\n\t  if (arguments.length === 0) {\n\t    for (key in this._events) {\n\t      if (key === 'removeListener') continue;\n\t      this.removeAllListeners(key);\n\t    }\n\t    this.removeAllListeners('removeListener');\n\t    this._events = {};\n\t    return this;\n\t  }\n\t\n\t  listeners = this._events[type];\n\t\n\t  if (isFunction(listeners)) {\n\t    this.removeListener(type, listeners);\n\t  } else if (listeners) {\n\t    // LIFO order\n\t    while (listeners.length)\n\t      this.removeListener(type, listeners[listeners.length - 1]);\n\t  }\n\t  delete this._events[type];\n\t\n\t  return this;\n\t};\n\t\n\tEventEmitter.prototype.listeners = function(type) {\n\t  var ret;\n\t  if (!this._events || !this._events[type])\n\t    ret = [];\n\t  else if (isFunction(this._events[type]))\n\t    ret = [this._events[type]];\n\t  else\n\t    ret = this._events[type].slice();\n\t  return ret;\n\t};\n\t\n\tEventEmitter.prototype.listenerCount = function(type) {\n\t  if (this._events) {\n\t    var evlistener = this._events[type];\n\t\n\t    if (isFunction(evlistener))\n\t      return 1;\n\t    else if (evlistener)\n\t      return evlistener.length;\n\t  }\n\t  return 0;\n\t};\n\t\n\tEventEmitter.listenerCount = function(emitter, type) {\n\t  return emitter.listenerCount(type);\n\t};\n\t\n\tfunction isFunction(arg) {\n\t  return typeof arg === 'function';\n\t}\n\t\n\tfunction isNumber(arg) {\n\t  return typeof arg === 'number';\n\t}\n\t\n\tfunction isObject(arg) {\n\t  return typeof arg === 'object' && arg !== null;\n\t}\n\t\n\tfunction isUndefined(arg) {\n\t  return arg === void 0;\n\t}\n\n\n/***/ },\n/* 2 */\n/***/ function(module, exports) {\n\n\t\n\t/* CoffeeScript version of the browser detection from MooTools */\n\tvar UA, browser, mode, platform, ua;\n\t\n\tua = navigator.userAgent.toLowerCase();\n\t\n\tplatform = navigator.platform.toLowerCase();\n\t\n\tUA = ua.match(/(opera|ie|firefox|chrome|version)[\\s\\/:]([\\w\\d\\.]+)?.*?(safari|version[\\s\\/:]([\\w\\d\\.]+)|$)/) || [null, 'unknown', 0];\n\t\n\tmode = UA[1] === 'ie' && document.documentMode;\n\t\n\tbrowser = {\n\t  name: UA[1] === 'version' ? UA[3] : UA[1],\n\t  version: mode || parseFloat(UA[1] === 'opera' && UA[4] ? UA[4] : UA[2]),\n\t  platform: {\n\t    name: ua.match(/ip(?:ad|od|hone)/) ? 'ios' : (ua.match(/(?:webos|android)/) || platform.match(/mac|win|linux/) || ['other'])[0]\n\t  }\n\t};\n\t\n\tbrowser[browser.name] = true;\n\t\n\tbrowser[browser.name + parseInt(browser.version, 10)] = true;\n\t\n\tbrowser.platform[browser.platform.name] = true;\n\t\n\tmodule.exports = browser;\n\n\n/***/ }\n/******/ ])\n});\n;\n\n\n/** WEBPACK FOOTER **\n ** gif.js\n **/"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId])\n \t\t\treturn installedModules[moduleId].exports;\n\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\texports: {},\n \t\t\tid: moduleId,\n \t\t\tloaded: false\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.loaded = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(0);\n\n\n\n/** WEBPACK FOOTER **\n ** webpack/bootstrap c4508600e32c0e7f0139\n **/","{EventEmitter} = require 'events'\r\nbrowser = require './browser.coffee'\r\n\r\nclass GIF extends EventEmitter\r\n\r\n  defaults =\r\n    workerScript: 'gif.worker.js'\r\n    workers: 2\r\n    repeat: 0 # repeat forever, -1 = repeat once\r\n    background: '#fff'\r\n    quality: 10 # pixel sample interval, lower is better\r\n    width: null # size derermined from first frame if possible\r\n    height: null\r\n    transparent: null\r\n    debug: false\r\n\r\n  frameDefaults =\r\n    delay: 500 # ms\r\n    copy: false\r\n\r\n  constructor: (options) ->\r\n    @running = false\r\n\r\n    @options = {}\r\n    @frames = []\r\n\r\n    # TODO: compare by instance and not by data\r\n    @groups = new Map() # for [data1, data1, data2, data1] @groups[data1] == [1, 3] and @groups[data2] = [2]\r\n\r\n    @freeWorkers = []\r\n    @activeWorkers = []\r\n\r\n    @setOptions options\r\n    for key, value of defaults\r\n      @options[key] ?= value\r\n\r\n  setOption: (key, value) ->\r\n    @options[key] = value\r\n    if @_canvas? and key in ['width', 'height']\r\n      @_canvas[key] = value\r\n\r\n  setOptions: (options) ->\r\n    @setOption key, value for own key, value of options\r\n\r\n  addFrame: (image, options={}) ->\r\n    frame = {}\r\n    frame.transparent = @options.transparent\r\n    for key of frameDefaults\r\n      frame[key] = options[key] or frameDefaults[key]\r\n\r\n    # use the images width and height for options unless already set\r\n    @setOption 'width', image.width unless @options.width?\r\n    @setOption 'height', image.height unless @options.height?\r\n\r\n    if ImageData? and image instanceof ImageData\r\n       frame.data = image.data\r\n    else if (CanvasRenderingContext2D? and image instanceof CanvasRenderingContext2D) or (WebGLRenderingContext? and image instanceof WebGLRenderingContext)\r\n      if options.copy\r\n        frame.data = @getContextData image\r\n      else\r\n        frame.context = image\r\n    else if image.childNodes?\r\n      if options.copy\r\n        frame.data = @getImageData image\r\n      else\r\n        frame.image = image\r\n    else\r\n      throw new Error 'Invalid image'\r\n\r\n    # find duplicates in frames.data\r\n    index = @frames.length\r\n    if index > 0 and frame.data # frame 0 contains header, do not count it\r\n      if @groups.has(frame.data)\r\n        @groups.get(frame.data).push index\r\n      else\r\n        @groups.set frame.data, [index]\r\n\r\n    @frames.push frame\r\n\r\n  render: ->\r\n    throw new Error 'Already running' if @running\r\n\r\n    if not @options.width? or not @options.height?\r\n      throw new Error 'Width and height must be set prior to rendering'\r\n\r\n    @running = true\r\n    @nextFrame = 0\r\n    @finishedFrames = 0\r\n\r\n    @imageParts = (null for i in [0...@frames.length])\r\n    numWorkers = @spawnWorkers()\r\n    # we need to wait for the palette\r\n    if @options.globalPalette == true\r\n      @renderNextFrame()\r\n    else\r\n      @renderNextFrame() for i in [0...numWorkers]\r\n\r\n    @emit 'start'\r\n    @emit 'progress', 0\r\n\r\n  abort: ->\r\n    loop\r\n      worker = @activeWorkers.shift()\r\n      break unless worker?\r\n      @log \"killing active worker\"\r\n      worker.terminate()\r\n    @running = false\r\n    @emit 'abort'\r\n\r\n  # private\r\n\r\n  spawnWorkers: ->\r\n    numWorkers = Math.min(@options.workers, @frames.length)\r\n    [@freeWorkers.length...numWorkers].forEach (i) =>\r\n      @log \"spawning worker #{ i }\"\r\n      worker = new Worker @options.workerScript\r\n      worker.onmessage = (event) =>\r\n        @activeWorkers.splice @activeWorkers.indexOf(worker), 1\r\n        @freeWorkers.push worker\r\n        @frameFinished event.data, false\r\n      @freeWorkers.push worker\r\n    return numWorkers\r\n\r\n  frameFinished: (frame, duplicate) ->\r\n    @finishedFrames++\r\n    if not duplicate\r\n      @log \"frame #{ frame.index + 1 } finished - #{ @activeWorkers.length } active\"\r\n      @emit 'progress', @finishedFrames / @frames.length\r\n      @imageParts[frame.index] = frame\r\n    else\r\n      indexOfDuplicate = @frames.indexOf frame\r\n      indexOfFirstInGroup = @groups.get(frame.data)[0]\r\n      @log \"frame #{ indexOfDuplicate + 1 } is duplicate of #{ indexOfFirstInGroup } - #{ @activeWorkers.length } active\"\r\n      @imageParts[indexOfDuplicate] = { indexOfFirstInGroup: indexOfFirstInGroup } # do not put frame here, as it may not be available still. Put index.\r\n    # remember calculated palette, spawn the rest of the workers\r\n    if @options.globalPalette == true and not duplicate\r\n      @options.globalPalette = frame.globalPalette\r\n      @log \"global palette analyzed\"\r\n      @renderNextFrame() for i in [1...@freeWorkers.length] if @frames.length > 2\r\n    if null in @imageParts\r\n      @renderNextFrame()\r\n    else\r\n      @finishRendering()\r\n\r\n  finishRendering: ->\r\n    for frame, index in @imageParts\r\n      @imageParts[index] = @imageParts[frame.indexOfFirstInGroup] if frame.indexOfFirstInGroup\r\n    len = 0\r\n    for frame in @imageParts\r\n      len += (frame.data.length - 1) * frame.pageSize + frame.cursor\r\n    len += frame.pageSize - frame.cursor\r\n    @log \"rendering finished - filesize #{ Math.round(len / 1000) }kb\"\r\n    data = new Uint8Array len\r\n    offset = 0\r\n    for frame in @imageParts\r\n      for page, i in frame.data\r\n        data.set page, offset\r\n        if i is frame.data.length - 1\r\n          offset += frame.cursor\r\n        else\r\n          offset += frame.pageSize\r\n\r\n    image = new Blob [data],\r\n      type: 'image/gif'\r\n\r\n    @emit 'finished', image, data\r\n\r\n  renderNextFrame: ->\r\n    throw new Error 'No free workers' if @freeWorkers.length is 0\r\n    return if @nextFrame >= @frames.length # no new frame to render\r\n\r\n    frame = @frames[@nextFrame++]\r\n\r\n    # check if one of duplicates, but not the first in group\r\n    index = @frames.indexOf frame\r\n    if index > 0 and @groups.has(frame.data) and @groups.get(frame.data)[0] != index\r\n      setTimeout =>\r\n        @frameFinished frame, true\r\n      , 0\r\n      return\r\n\r\n    worker = @freeWorkers.shift()\r\n    task = @getTask frame\r\n\r\n    @log \"starting frame #{ task.index + 1 } of #{ @frames.length }\"\r\n    @activeWorkers.push worker\r\n    worker.postMessage task#, [task.data.buffer]\r\n\r\n  getContextData: (ctx) ->\r\n    return ctx.getImageData(0, 0, @options.width, @options.height).data\r\n\r\n  getImageData: (image) ->\r\n    if not @_canvas?\r\n      @_canvas = document.createElement 'canvas'\r\n      @_canvas.width = @options.width\r\n      @_canvas.height = @options.height\r\n\r\n    ctx = @_canvas.getContext '2d'\r\n    ctx.setFill = @options.background\r\n    ctx.fillRect 0, 0, @options.width, @options.height\r\n    ctx.drawImage image, 0, 0\r\n\r\n    return @getContextData ctx\r\n\r\n  getTask: (frame) ->\r\n    index = @frames.indexOf frame\r\n    task =\r\n      index: index\r\n      last: index is (@frames.length - 1)\r\n      delay: frame.delay\r\n      transparent: frame.transparent\r\n      width: @options.width\r\n      height: @options.height\r\n      quality: @options.quality\r\n      dither: @options.dither\r\n      globalPalette: @options.globalPalette\r\n      repeat: @options.repeat\r\n      canTransfer: true\r\n\r\n    if frame.data?\r\n      task.data = frame.data\r\n    else if frame.context?\r\n      task.data = @getContextData frame.context\r\n    else if frame.image?\r\n      task.data = @getImageData frame.image\r\n    else\r\n      throw new Error 'Invalid frame'\r\n\r\n    return task\r\n\r\n  log: (msg) ->\r\n    console.log msg if @options.debug\r\n\r\nmodule.exports = GIF\r\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/gif.coffee\n **/","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\nfunction EventEmitter() {\n  this._events = this._events || {};\n  this._maxListeners = this._maxListeners || undefined;\n}\nmodule.exports = EventEmitter;\n\n// Backwards-compat with node 0.10.x\nEventEmitter.EventEmitter = EventEmitter;\n\nEventEmitter.prototype._events = undefined;\nEventEmitter.prototype._maxListeners = undefined;\n\n// By default EventEmitters will print a warning if more than 10 listeners are\n// added to it. This is a useful default which helps finding memory leaks.\nEventEmitter.defaultMaxListeners = 10;\n\n// Obviously not all Emitters should be limited to 10. This function allows\n// that to be increased. Set to zero for unlimited.\nEventEmitter.prototype.setMaxListeners = function(n) {\n  if (!isNumber(n) || n < 0 || isNaN(n))\n    throw TypeError('n must be a positive number');\n  this._maxListeners = n;\n  return this;\n};\n\nEventEmitter.prototype.emit = function(type) {\n  var er, handler, len, args, i, listeners;\n\n  if (!this._events)\n    this._events = {};\n\n  // If there is no 'error' event listener then throw.\n  if (type === 'error') {\n    if (!this._events.error ||\n        (isObject(this._events.error) && !this._events.error.length)) {\n      er = arguments[1];\n      if (er instanceof Error) {\n        throw er; // Unhandled 'error' event\n      } else {\n        // At least give some kind of context to the user\n        var err = new Error('Uncaught, unspecified \"error\" event. (' + er + ')');\n        err.context = er;\n        throw err;\n      }\n    }\n  }\n\n  handler = this._events[type];\n\n  if (isUndefined(handler))\n    return false;\n\n  if (isFunction(handler)) {\n    switch (arguments.length) {\n      // fast cases\n      case 1:\n        handler.call(this);\n        break;\n      case 2:\n        handler.call(this, arguments[1]);\n        break;\n      case 3:\n        handler.call(this, arguments[1], arguments[2]);\n        break;\n      // slower\n      default:\n        args = Array.prototype.slice.call(arguments, 1);\n        handler.apply(this, args);\n    }\n  } else if (isObject(handler)) {\n    args = Array.prototype.slice.call(arguments, 1);\n    listeners = handler.slice();\n    len = listeners.length;\n    for (i = 0; i < len; i++)\n      listeners[i].apply(this, args);\n  }\n\n  return true;\n};\n\nEventEmitter.prototype.addListener = function(type, listener) {\n  var m;\n\n  if (!isFunction(listener))\n    throw TypeError('listener must be a function');\n\n  if (!this._events)\n    this._events = {};\n\n  // To avoid recursion in the case that type === \"newListener\"! Before\n  // adding it to the listeners, first emit \"newListener\".\n  if (this._events.newListener)\n    this.emit('newListener', type,\n              isFunction(listener.listener) ?\n              listener.listener : listener);\n\n  if (!this._events[type])\n    // Optimize the case of one listener. Don't need the extra array object.\n    this._events[type] = listener;\n  else if (isObject(this._events[type]))\n    // If we've already got an array, just append.\n    this._events[type].push(listener);\n  else\n    // Adding the second element, need to change to array.\n    this._events[type] = [this._events[type], listener];\n\n  // Check for listener leak\n  if (isObject(this._events[type]) && !this._events[type].warned) {\n    if (!isUndefined(this._maxListeners)) {\n      m = this._maxListeners;\n    } else {\n      m = EventEmitter.defaultMaxListeners;\n    }\n\n    if (m && m > 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\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./~/events/events.js\n ** module id = 1\n ** module chunks = 0\n **/","### CoffeeScript version of the browser detection from MooTools ###\r\n\r\nua = navigator.userAgent.toLowerCase()\r\nplatform = navigator.platform.toLowerCase()\r\nUA = ua.match(/(opera|ie|firefox|chrome|version)[\\s\\/:]([\\w\\d\\.]+)?.*?(safari|version[\\s\\/:]([\\w\\d\\.]+)|$)/) or [null, 'unknown', 0]\r\nmode = UA[1] == 'ie' && document.documentMode\r\n\r\nbrowser =\r\n  name: if UA[1] is 'version' then UA[3] else UA[1]\r\n  version: mode or parseFloat(if UA[1] is 'opera' && UA[4] then UA[4] else UA[2])\r\n\r\n  platform:\r\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]\r\n\r\nbrowser[browser.name] = true\r\nbrowser[browser.name + parseInt(browser.version, 10)] = true\r\nbrowser.platform[browser.platform.name] = true\r\n\r\nmodule.exports = browser\r\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/browser.coffee\n **/"],"sourceRoot":""}
\ No newline at end of file
diff --git a/src/js/libs/gifjs/gif.worker.js b/src/js/libs/gifjs/gif.worker.js
deleted file mode 100644
index 28b1f18..0000000
--- a/src/js/libs/gifjs/gif.worker.js
+++ /dev/null
@@ -1,2 +0,0 @@
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r=i||t.length,s=e||0;s<r;s++)this.writeByte(t[s])},s.prototype.setDelay=function(t){this.delay=Math.round(t/10)},s.prototype.setFrameRate=function(t){this.delay=Math.round(100/t)},s.prototype.setDispose=function(t){t>=0&&(this.dispose=t)},s.prototype.setRepeat=function(t){this.repeat=t},s.prototype.setTransparent=function(t){this.transparent=t},s.prototype.addFrame=function(t){this.image=t,this.colorTab=this.globalPalette&&this.globalPalette.slice?this.globalPalette:null,this.getImagePixels(),this.analyzePixels(),this.globalPalette===!0&&(this.globalPalette=this.colorTab),this.firstFrame&&(this.writeLSD(),this.writePalette(),this.repeat>=0&&this.writeNetscapeExt()),this.writeGraphicCtrlExt(),this.writeImageDesc(),this.firstFrame||this.globalPalette||this.writePalette(),this.writePixels(),this.firstFrame=!1},s.prototype.finish=function(){this.out.writeByte(59)},s.prototype.setQuality=function(t){t<1&&(t=1),this.sample=t},s.prototype.setDither=function(t){t===!0&&(t="FloydSteinberg"),this.dither=t},s.prototype.setGlobalPalette=function(t){this.globalPalette=t},s.prototype.getGlobalPalette=function(){return this.globalPalette&&this.globalPalette.slice&&this.globalPalette.slice(0)||this.globalPalette},s.prototype.writeHeader=function(){this.out.writeUTFBytes("GIF89a")},s.prototype.analyzePixels=function(){this.colorTab||(this.neuQuant=new o(this.pixels,this.sample),this.neuQuant.buildColormap(),this.colorTab=this.neuQuant.getColormap()),this.dither?this.ditherPixels(this.dither.replace("-serpentine",""),null!==this.dither.match(/-serpentine/)):this.indexPixels(),this.pixels=null,this.colorDepth=8,this.palSize=7,null!==this.transparent&&(this.transIndex=this.findClosest(this.transparent,!0))},s.prototype.indexPixels=function(){var t=this.pixels.length/3;this.indexedPixels=new Uint8Array(t);for(var e=0,i=0;i<t;i++){var r=this.findClosestRGB(255&this.pixels[e++],255&this.pixels[e++],255&this.pixels[e++]);this.usedEntry[r]=!0,this.indexedPixels[i]=r}},s.prototype.ditherPixels=function(t,e){var i={FalseFloydSteinberg:[[3/8,1,0],[3/8,0,1],[.25,1,1]],FloydSteinberg:[[7/16,1,0],[3/16,-1,1],[5/16,0,1],[1/16,1,1]],Stucki:[[8/42,1,0],[4/42,2,0],[2/42,-2,1],[4/42,-1,1],[8/42,0,1],[4/42,1,1],[2/42,2,1],[1/42,-2,2],[2/42,-1,2],[4/42,0,2],[2/42,1,2],[1/42,2,2]],Atkinson:[[1/8,1,0],[1/8,2,0],[1/8,-1,1],[1/8,0,1],[1/8,1,1],[1/8,0,2]]};if(!t||!i[t])throw"Unknown dithering kernel: "+t;var r=i[t],s=0,o=this.height,n=this.width,a=this.pixels,h=e?-1:1;this.indexedPixels=new Uint8Array(this.pixels.length/3);for(var l=0;l<o;l++){e&&(h*=-1);for(var u=1==h?0:n-1,p=1==h?n:0;u!==p;u+=h){s=l*n+u;var f=3*s,c=a[f],y=a[f+1],w=a[f+2];f=this.findClosestRGB(c,y,w),this.usedEntry[f]=!0,this.indexedPixels[s]=f,f*=3;for(var d=this.colorTab[f],g=this.colorTab[f+1],x=this.colorTab[f+2],b=c-d,v=y-g,P=w-x,m=1==h?0:r.length-1,B=1==h?r.length:0;m!==B;m+=h){var S=r[m][1],T=r[m][2];if(S+u>=0&&S+u<n&&T+l>=0&&T+l<o){var 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i,s=t.length,o=30+(e-1)/3,a=s/(3*e),h=~~(a/r),l=b,u=d,p=u>>y;for(p<=1&&(p=0),i=0;i<p;i++)Q[i]=l*((p*p-i*i)*P/(p*p));var f;s<A?(e=1,f=3):f=s%S!==0?3*S:s%T!==0?3*T:s%M!==0?3*M:3*F;var c,m,B,C,I=0;for(i=0;i<a;)if(c=(255&t[I])<<n,m=(255&t[I+1])<<n,B=(255&t[I+2])<<n,C=v(c,m,B),w(l,C,c,m,B),0!==p&&x(p,C,c,m,B),I+=f,I>=s&&(I-=s),i++,0===h&&(h=1),i%h===0)for(l-=l/o,u-=u/g,p=u>>y,p<=1&&(p=0),C=0;C<p;C++)Q[C]=l*((p*p-C*C)*P/(p*p))}function D(){i(),I(),c(),m()}function G(){for(var t=[],e=[],i=0;i<s;i++)e[z[i][3]]=i;for(var r=0,o=0;o<s;o++){var n=e[o];t[r++]=z[n][0],t[r++]=z[n][1],t[r++]=z[n][2]}return t}var z,E,R,U,Q;this.buildColormap=D,this.getColormap=G,this.lookupRGB=C}var r=100,s=256,o=s-1,n=4,a=16,h=1<<a,l=10,u=10,p=h>>u,f=h<<l-u,c=s>>3,y=6,w=1<<y,d=c*w,g=30,x=10,b=1<<x,v=8,P=1<<v,m=x+v,B=1<<m,S=499,T=491,M=487,F=503,A=3*F;t.exports=i},function(t,e){function i(t,e,i,a){function h(t,e){S[x++]=t,x>=254&&c(e)}function l(t){u(o),A=P+2,C=!0,d(P,t)}function u(t){for(var 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r=-1,s=12,o=5003,n=[0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535];t.exports=i}]);
-//# sourceMappingURL=gif.worker.js.map
\ No newline at end of file
diff --git a/src/js/libs/gifjs/gif.worker.js.map b/src/js/libs/gifjs/gif.worker.js.map
deleted file mode 100644
index b588382..0000000
--- a/src/js/libs/gifjs/gif.worker.js.map
+++ /dev/null
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(function(modules) { // webpackBootstrap\n/******/ \t// The module cache\n/******/ \tvar installedModules = {};\n/******/\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n/******/\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(installedModules[moduleId])\n/******/ \t\t\treturn installedModules[moduleId].exports;\n/******/\n/******/ \t\t// Create a new module (and put it into the cache)\n/******/ \t\tvar module = installedModules[moduleId] = {\n/******/ \t\t\texports: {},\n/******/ \t\t\tid: moduleId,\n/******/ \t\t\tloaded: false\n/******/ \t\t};\n/******/\n/******/ \t\t// Execute the module function\n/******/ \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n/******/\n/******/ \t\t// Flag the module as loaded\n/******/ \t\tmodule.loaded = true;\n/******/\n/******/ \t\t// Return the exports of the module\n/******/ \t\treturn module.exports;\n/******/ \t}\n/******/\n/******/\n/******/ \t// 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encoder.setDelay(frame.delay);\n\t  encoder.setQuality(frame.quality);\n\t  encoder.setDither(frame.dither);\n\t  encoder.setGlobalPalette(frame.globalPalette);\n\t  encoder.addFrame(frame.data);\n\t  if (frame.last) {\n\t    encoder.finish();\n\t  }\n\t  if (frame.globalPalette === true) {\n\t    frame.globalPalette = encoder.getGlobalPalette();\n\t  }\n\t  stream = encoder.stream();\n\t  frame.data = stream.pages;\n\t  frame.cursor = stream.cursor;\n\t  frame.pageSize = stream.constructor.pageSize;\n\t  if (frame.canTransfer) {\n\t    transfer = (function() {\n\t      var i, len, ref, results;\n\t      ref = frame.data;\n\t      results = [];\n\t      for (i = 0, len = ref.length; i < len; i++) {\n\t        page = ref[i];\n\t        results.push(page.buffer);\n\t      }\n\t      return results;\n\t    })();\n\t    return self.postMessage(frame, transfer);\n\t  } else {\n\t    return self.postMessage(frame);\n\t  }\n\t};\n\t\n\tself.onmessage = function(event) {\n\t  return renderFrame(event.data);\n\t};\n\n\n/***/ },\n/* 1 */\n/***/ function(module, exports, __webpack_require__) {\n\n\t/*\r\n\t  GIFEncoder.js\r\n\t\r\n\t  Authors\r\n\t  Kevin Weiner (original Java version - kweiner@fmsware.com)\r\n\t  Thibault Imbert (AS3 version - bytearray.org)\r\n\t  Johan Nordberg (JS version - code@johan-nordberg.com)\r\n\t*/\r\n\t\r\n\tvar NeuQuant = __webpack_require__(2);\r\n\tvar LZWEncoder = __webpack_require__(3);\r\n\t\r\n\tfunction ByteArray() {\r\n\t  this.page = -1;\r\n\t  this.pages = [];\r\n\t  this.newPage();\r\n\t}\r\n\t\r\n\tByteArray.pageSize = 4096;\r\n\tByteArray.charMap = {};\r\n\t\r\n\tfor (var i = 0; i < 256; i++)\r\n\t  ByteArray.charMap[i] = String.fromCharCode(i);\r\n\t\r\n\tByteArray.prototype.newPage = function() {\r\n\t  this.pages[++this.page] = new Uint8Array(ByteArray.pageSize);\r\n\t  this.cursor = 0;\r\n\t};\r\n\t\r\n\tByteArray.prototype.getData = function() {\r\n\t  var rv = '';\r\n\t  for (var p = 0; p < this.pages.length; p++) {\r\n\t    for (var i = 0; i < ByteArray.pageSize; i++) {\r\n\t      rv += ByteArray.charMap[this.pages[p][i]];\r\n\t    }\r\n\t  }\r\n\t  return rv;\r\n\t};\r\n\t\r\n\tByteArray.prototype.writeByte = function(val) {\r\n\t  if (this.cursor >= ByteArray.pageSize) this.newPage();\r\n\t  this.pages[this.page][this.cursor++] = val;\r\n\t};\r\n\t\r\n\tByteArray.prototype.writeUTFBytes = function(string) {\r\n\t  for (var l = string.length, i = 0; i < l; i++)\r\n\t    this.writeByte(string.charCodeAt(i));\r\n\t};\r\n\t\r\n\tByteArray.prototype.writeBytes = function(array, offset, length) {\r\n\t  for (var l = length || array.length, i = offset || 0; i < l; i++)\r\n\t    this.writeByte(array[i]);\r\n\t};\r\n\t\r\n\tfunction GIFEncoder(width, height) {\r\n\t  // image size\r\n\t  this.width = ~~width;\r\n\t  this.height = ~~height;\r\n\t\r\n\t  // transparent color if given\r\n\t  this.transparent = null;\r\n\t\r\n\t  // transparent index in color table\r\n\t  this.transIndex = 0;\r\n\t\r\n\t  // -1 = no repeat, 0 = forever. anything else is repeat count\r\n\t  this.repeat = -1;\r\n\t\r\n\t  // frame delay (hundredths)\r\n\t  this.delay = 0;\r\n\t\r\n\t  this.image = null; // current frame\r\n\t  this.pixels = null; // BGR byte array from frame\r\n\t  this.indexedPixels = null; // converted frame indexed to palette\r\n\t  this.colorDepth = null; // number of bit planes\r\n\t  this.colorTab = null; // RGB palette\r\n\t  this.neuQuant = null; // NeuQuant instance that was used to generate this.colorTab.\r\n\t  this.usedEntry = new Array(); // active palette entries\r\n\t  this.palSize = 7; // color table size (bits-1)\r\n\t  this.dispose = -1; // disposal code (-1 = use default)\r\n\t  this.firstFrame = true;\r\n\t  this.sample = 10; // default sample interval for quantizer\r\n\t  this.dither = false; // default dithering\r\n\t  this.globalPalette = false;\r\n\t\r\n\t  this.out = new ByteArray();\r\n\t}\r\n\t\r\n\t/*\r\n\t  Sets the delay time between each frame, or changes it for subsequent frames\r\n\t  (applies to last frame added)\r\n\t*/\r\n\tGIFEncoder.prototype.setDelay = function(milliseconds) {\r\n\t  this.delay = Math.round(milliseconds / 10);\r\n\t};\r\n\t\r\n\t/*\r\n\t  Sets frame rate in frames per second.\r\n\t*/\r\n\tGIFEncoder.prototype.setFrameRate = function(fps) {\r\n\t  this.delay = Math.round(100 / fps);\r\n\t};\r\n\t\r\n\t/*\r\n\t  Sets the GIF frame disposal code for the last added frame and any\r\n\t  subsequent frames.\r\n\t\r\n\t  Default is 0 if no transparent color has been set, otherwise 2.\r\n\t*/\r\n\tGIFEncoder.prototype.setDispose = function(disposalCode) {\r\n\t  if (disposalCode >= 0) this.dispose = disposalCode;\r\n\t};\r\n\t\r\n\t/*\r\n\t  Sets the number of times the set of GIF frames should be played.\r\n\t\r\n\t  -1 = play once\r\n\t  0 = repeat indefinitely\r\n\t\r\n\t  Default is -1\r\n\t\r\n\t  Must be invoked before the first image is added\r\n\t*/\r\n\t\r\n\tGIFEncoder.prototype.setRepeat = function(repeat) {\r\n\t  this.repeat = repeat;\r\n\t};\r\n\t\r\n\t/*\r\n\t  Sets the transparent color for the last added frame and any subsequent\r\n\t  frames. Since all colors are subject to modification in the quantization\r\n\t  process, the color in the final palette for each frame closest to the given\r\n\t  color becomes the transparent color for that frame. May be set to null to\r\n\t  indicate no transparent color.\r\n\t*/\r\n\tGIFEncoder.prototype.setTransparent = function(color) {\r\n\t  this.transparent = color;\r\n\t};\r\n\t\r\n\t/*\r\n\t  Adds next GIF frame. The frame is not written immediately, but is\r\n\t  actually deferred until the next frame is received so that timing\r\n\t  data can be inserted.  Invoking finish() flushes all frames.\r\n\t*/\r\n\tGIFEncoder.prototype.addFrame = function(imageData) {\r\n\t  this.image = imageData;\r\n\t\r\n\t  this.colorTab = this.globalPalette && this.globalPalette.slice ? this.globalPalette : null;\r\n\t\r\n\t  this.getImagePixels(); // convert to correct format if necessary\r\n\t  this.analyzePixels(); // build color table & map pixels\r\n\t\r\n\t  if (this.globalPalette === true) this.globalPalette = this.colorTab;\r\n\t\r\n\t  if (this.firstFrame) {\r\n\t    this.writeLSD(); // logical screen descriptior\r\n\t    this.writePalette(); // global color table\r\n\t    if (this.repeat >= 0) {\r\n\t      // use NS app extension to indicate reps\r\n\t      this.writeNetscapeExt();\r\n\t    }\r\n\t  }\r\n\t\r\n\t  this.writeGraphicCtrlExt(); // write graphic control extension\r\n\t  this.writeImageDesc(); // image descriptor\r\n\t  if (!this.firstFrame && !this.globalPalette) this.writePalette(); // local color table\r\n\t  this.writePixels(); // encode and write pixel data\r\n\t\r\n\t  this.firstFrame = false;\r\n\t};\r\n\t\r\n\t/*\r\n\t  Adds final trailer to the GIF stream, if you don't call the finish method\r\n\t  the GIF stream will not be valid.\r\n\t*/\r\n\tGIFEncoder.prototype.finish = function() {\r\n\t  this.out.writeByte(0x3b); // gif trailer\r\n\t};\r\n\t\r\n\t/*\r\n\t  Sets quality of color quantization (conversion of images to the maximum 256\r\n\t  colors allowed by the GIF specification). Lower values (minimum = 1)\r\n\t  produce better colors, but slow processing significantly. 10 is the\r\n\t  default, and produces good color mapping at reasonable speeds. Values\r\n\t  greater than 20 do not yield significant improvements in speed.\r\n\t*/\r\n\tGIFEncoder.prototype.setQuality = function(quality) {\r\n\t  if (quality < 1) quality = 1;\r\n\t  this.sample = quality;\r\n\t};\r\n\t\r\n\t/*\r\n\t  Sets dithering method. Available are:\r\n\t  - FALSE no dithering\r\n\t  - TRUE or FloydSteinberg\r\n\t  - FalseFloydSteinberg\r\n\t  - Stucki\r\n\t  - Atkinson\r\n\t  You can add '-serpentine' to use serpentine scanning\r\n\t*/\r\n\tGIFEncoder.prototype.setDither = function(dither) {\r\n\t  if (dither === true) dither = 'FloydSteinberg';\r\n\t  this.dither = dither;\r\n\t};\r\n\t\r\n\t/*\r\n\t  Sets global palette for all frames.\r\n\t  You can provide TRUE to create global palette from first picture.\r\n\t  Or an array of r,g,b,r,g,b,...\r\n\t*/\r\n\tGIFEncoder.prototype.setGlobalPalette = function(palette) {\r\n\t  this.globalPalette = palette;\r\n\t};\r\n\t\r\n\t/*\r\n\t  Returns global palette used for all frames.\r\n\t  If setGlobalPalette(true) was used, then this function will return\r\n\t  calculated palette after the first frame is added.\r\n\t*/\r\n\tGIFEncoder.prototype.getGlobalPalette = function() {\r\n\t  return (this.globalPalette && this.globalPalette.slice && this.globalPalette.slice(0)) || this.globalPalette;\r\n\t};\r\n\t\r\n\t/*\r\n\t  Writes GIF file header\r\n\t*/\r\n\tGIFEncoder.prototype.writeHeader = function() {\r\n\t  this.out.writeUTFBytes(\"GIF89a\");\r\n\t};\r\n\t\r\n\t/*\r\n\t  Analyzes current frame colors and creates color map.\r\n\t*/\r\n\tGIFEncoder.prototype.analyzePixels = function() {\r\n\t  if (!this.colorTab) {\r\n\t    this.neuQuant = new NeuQuant(this.pixels, this.sample);\r\n\t    this.neuQuant.buildColormap(); // create reduced palette\r\n\t    this.colorTab = this.neuQuant.getColormap();\r\n\t  }\r\n\t\r\n\t  // map image pixels to new palette\r\n\t  if (this.dither) {\r\n\t    this.ditherPixels(this.dither.replace('-serpentine', ''), this.dither.match(/-serpentine/) !== null);\r\n\t  } else {\r\n\t    this.indexPixels();\r\n\t  }\r\n\t\r\n\t  this.pixels = null;\r\n\t  this.colorDepth = 8;\r\n\t  this.palSize = 7;\r\n\t\r\n\t  // get closest match to transparent color if specified\r\n\t  if (this.transparent !== null) {\r\n\t    this.transIndex = this.findClosest(this.transparent, true);\r\n\t  }\r\n\t};\r\n\t\r\n\t/*\r\n\t  Index pixels, without dithering\r\n\t  This method is most expensive (75% of time) because of calls to findClosestRGB, and findClosestRGB should be optimized.\r\n\t*/\r\n\tGIFEncoder.prototype.indexPixels = function() {\r\n\t  var nPix = this.pixels.length / 3;\r\n\t  this.indexedPixels = new Uint8Array(nPix);\r\n\t  var k = 0;\r\n\t  for (var j = 0; j < nPix; j++) {\r\n\t    var index = this.findClosestRGB(\r\n\t      this.pixels[k++] & 0xff,\r\n\t      this.pixels[k++] & 0xff,\r\n\t      this.pixels[k++] & 0xff\r\n\t    );\r\n\t    this.usedEntry[index] = true;\r\n\t    this.indexedPixels[j] = index;\r\n\t  }\r\n\t};\r\n\t\r\n\t/*\r\n\t  Taken from http://jsbin.com/iXofIji/2/edit by PAEz\r\n\t*/\r\n\tGIFEncoder.prototype.ditherPixels = function(kernel, serpentine) {\r\n\t  var kernels = {\r\n\t    FalseFloydSteinberg: [\r\n\t      [3 / 8, 1, 0],\r\n\t      [3 / 8, 0, 1],\r\n\t      [2 / 8, 1, 1]\r\n\t    ],\r\n\t    FloydSteinberg: [\r\n\t      [7 / 16, 1, 0],\r\n\t      [3 / 16, -1, 1],\r\n\t      [5 / 16, 0, 1],\r\n\t      [1 / 16, 1, 1]\r\n\t    ],\r\n\t    Stucki: [\r\n\t      [8 / 42, 1, 0],\r\n\t      [4 / 42, 2, 0],\r\n\t      [2 / 42, -2, 1],\r\n\t      [4 / 42, -1, 1],\r\n\t      [8 / 42, 0, 1],\r\n\t      [4 / 42, 1, 1],\r\n\t      [2 / 42, 2, 1],\r\n\t      [1 / 42, -2, 2],\r\n\t      [2 / 42, -1, 2],\r\n\t      [4 / 42, 0, 2],\r\n\t      [2 / 42, 1, 2],\r\n\t      [1 / 42, 2, 2]\r\n\t    ],\r\n\t    Atkinson: [\r\n\t      [1 / 8, 1, 0],\r\n\t      [1 / 8, 2, 0],\r\n\t      [1 / 8, -1, 1],\r\n\t      [1 / 8, 0, 1],\r\n\t      [1 / 8, 1, 1],\r\n\t      [1 / 8, 0, 2]\r\n\t    ]\r\n\t  };\r\n\t\r\n\t  if (!kernel || !kernels[kernel]) {\r\n\t    throw 'Unknown dithering kernel: ' + kernel;\r\n\t  }\r\n\t\r\n\t  var ds = kernels[kernel];\r\n\t  var index = 0,\r\n\t    height = this.height,\r\n\t    width = this.width,\r\n\t    data = this.pixels;\r\n\t  var direction = serpentine ? -1 : 1;\r\n\t\r\n\t  this.indexedPixels = new Uint8Array(this.pixels.length / 3);\r\n\t\r\n\t  for (var y = 0; y < height; y++) {\r\n\t\r\n\t    if (serpentine) direction = direction * -1;\r\n\t\r\n\t    for (var x = (direction == 1 ? 0 : width - 1), xend = (direction == 1 ? width : 0); x !== xend; x += direction) {\r\n\t\r\n\t      index = (y * width) + x;\r\n\t      // Get original colour\r\n\t      var idx = index * 3;\r\n\t      var r1 = data[idx];\r\n\t      var g1 = data[idx + 1];\r\n\t      var b1 = data[idx + 2];\r\n\t\r\n\t      // Get converted colour\r\n\t      idx = this.findClosestRGB(r1, g1, b1);\r\n\t      this.usedEntry[idx] = true;\r\n\t      this.indexedPixels[index] = idx;\r\n\t      idx *= 3;\r\n\t      var r2 = this.colorTab[idx];\r\n\t      var g2 = this.colorTab[idx + 1];\r\n\t      var b2 = this.colorTab[idx + 2];\r\n\t\r\n\t      var er = r1 - r2;\r\n\t      var eg = g1 - g2;\r\n\t      var eb = b1 - b2;\r\n\t\r\n\t      for (var i = (direction == 1 ? 0: ds.length - 1), end = (direction == 1 ? ds.length : 0); i !== end; i += direction) {\r\n\t        var x1 = ds[i][1]; // *direction;  //  Should this by timesd by direction?..to make the kernel go in the opposite direction....got no idea....\r\n\t        var y1 = ds[i][2];\r\n\t        if (x1 + x >= 0 && x1 + x < width && y1 + y >= 0 && y1 + y < height) {\r\n\t          var d = ds[i][0];\r\n\t          idx = index + x1 + (y1 * width);\r\n\t          idx *= 3;\r\n\t\r\n\t          data[idx] = Math.max(0, Math.min(255, data[idx] + er * d));\r\n\t          data[idx + 1] = Math.max(0, Math.min(255, data[idx + 1] + eg * d));\r\n\t          data[idx + 2] = Math.max(0, Math.min(255, data[idx + 2] + eb * d));\r\n\t        }\r\n\t      }\r\n\t    }\r\n\t  }\r\n\t};\r\n\t\r\n\t/*\r\n\t  Returns index of palette color closest to c\r\n\t*/\r\n\tGIFEncoder.prototype.findClosest = function(c, used) {\r\n\t  return this.findClosestRGB((c & 0xFF0000) >> 16, (c & 0x00FF00) >> 8, (c & 0x0000FF), used);\r\n\t};\r\n\t\r\n\t// Should be heavily optimized\r\n\tGIFEncoder.prototype.findClosestRGB = function(r, g, b, used) {\r\n\t  if (this.colorTab === null) return -1;\r\n\t\r\n\t  if (this.neuQuant && !used) {\r\n\t    return this.neuQuant.lookupRGB(r, g, b);\r\n\t  }\r\n\t  \r\n\t  var c = b | (g << 8) | (r << 16);\r\n\t\r\n\t  var minpos = 0;\r\n\t  var dmin = 256 * 256 * 256;\r\n\t  var len = this.colorTab.length;\r\n\t\r\n\t  for (var i = 0, index = 0; i < len; index++) {\r\n\t    var dr = r - (this.colorTab[i++] & 0xff);\r\n\t    var dg = g - (this.colorTab[i++] & 0xff);\r\n\t    var db = b - (this.colorTab[i++] & 0xff);\r\n\t    var d = dr * dr + dg * dg + db * db;\r\n\t    if ((!used || this.usedEntry[index]) && (d < dmin)) {\r\n\t      dmin = d;\r\n\t      minpos = index;\r\n\t    }\r\n\t  }\r\n\t\r\n\t  return minpos;\r\n\t};\r\n\t\r\n\t/*\r\n\t  Extracts image pixels into byte array pixels\r\n\t  (removes alphachannel from canvas imagedata)\r\n\t*/\r\n\tGIFEncoder.prototype.getImagePixels = function() {\r\n\t  var w = this.width;\r\n\t  var h = this.height;\r\n\t  this.pixels = new Uint8Array(w * h * 3);\r\n\t\r\n\t  var data = this.image;\r\n\t  var srcPos = 0;\r\n\t  var count = 0;\r\n\t\r\n\t  for (var i = 0; i < h; i++) {\r\n\t    for (var j = 0; j < w; j++) {\r\n\t      this.pixels[count++] = data[srcPos++];\r\n\t      this.pixels[count++] = data[srcPos++];\r\n\t      this.pixels[count++] = data[srcPos++];\r\n\t      srcPos++;\r\n\t    }\r\n\t  }\r\n\t};\r\n\t\r\n\t/*\r\n\t  Writes Graphic Control Extension\r\n\t*/\r\n\tGIFEncoder.prototype.writeGraphicCtrlExt = function() {\r\n\t  this.out.writeByte(0x21); // extension introducer\r\n\t  this.out.writeByte(0xf9); // GCE label\r\n\t  this.out.writeByte(4); // data block size\r\n\t\r\n\t  var transp, disp;\r\n\t  if (this.transparent === null) {\r\n\t    transp = 0;\r\n\t    disp = 0; // dispose = no action\r\n\t  } else {\r\n\t    transp = 1;\r\n\t    disp = 2; // force clear if using transparent color\r\n\t  }\r\n\t\r\n\t  if (this.dispose >= 0) {\r\n\t    disp = dispose & 7; // user override\r\n\t  }\r\n\t  disp <<= 2;\r\n\t\r\n\t  // packed fields\r\n\t  this.out.writeByte(\r\n\t    0 | // 1:3 reserved\r\n\t    disp | // 4:6 disposal\r\n\t    0 | // 7 user input - 0 = none\r\n\t    transp // 8 transparency flag\r\n\t  );\r\n\t\r\n\t  this.writeShort(this.delay); // delay x 1/100 sec\r\n\t  this.out.writeByte(this.transIndex); // transparent color index\r\n\t  this.out.writeByte(0); // block terminator\r\n\t};\r\n\t\r\n\t/*\r\n\t  Writes Image Descriptor\r\n\t*/\r\n\tGIFEncoder.prototype.writeImageDesc = function() {\r\n\t  this.out.writeByte(0x2c); // image separator\r\n\t  this.writeShort(0); // image position x,y = 0,0\r\n\t  this.writeShort(0);\r\n\t  this.writeShort(this.width); // image size\r\n\t  this.writeShort(this.height);\r\n\t\r\n\t  // packed fields\r\n\t  if (this.firstFrame || this.globalPalette) {\r\n\t    // no LCT - GCT is used for first (or only) frame\r\n\t    this.out.writeByte(0);\r\n\t  } else {\r\n\t    // specify normal LCT\r\n\t    this.out.writeByte(\r\n\t      0x80 | // 1 local color table 1=yes\r\n\t      0 | // 2 interlace - 0=no\r\n\t      0 | // 3 sorted - 0=no\r\n\t      0 | // 4-5 reserved\r\n\t      this.palSize // 6-8 size of color table\r\n\t    );\r\n\t  }\r\n\t};\r\n\t\r\n\t/*\r\n\t  Writes Logical Screen Descriptor\r\n\t*/\r\n\tGIFEncoder.prototype.writeLSD = function() {\r\n\t  // logical screen size\r\n\t  this.writeShort(this.width);\r\n\t  this.writeShort(this.height);\r\n\t\r\n\t  // packed fields\r\n\t  this.out.writeByte(\r\n\t    0x80 | // 1 : global color table flag = 1 (gct used)\r\n\t    0x70 | // 2-4 : color resolution = 7\r\n\t    0x00 | // 5 : gct sort flag = 0\r\n\t    this.palSize // 6-8 : gct size\r\n\t  );\r\n\t\r\n\t  this.out.writeByte(0); // background color index\r\n\t  this.out.writeByte(0); // pixel aspect ratio - assume 1:1\r\n\t};\r\n\t\r\n\t/*\r\n\t  Writes Netscape application extension to define repeat count.\r\n\t*/\r\n\tGIFEncoder.prototype.writeNetscapeExt = function() {\r\n\t  this.out.writeByte(0x21); // extension introducer\r\n\t  this.out.writeByte(0xff); // app extension label\r\n\t  this.out.writeByte(11); // block size\r\n\t  this.out.writeUTFBytes('NETSCAPE2.0'); // app id + auth code\r\n\t  this.out.writeByte(3); // sub-block size\r\n\t  this.out.writeByte(1); // loop sub-block id\r\n\t  this.writeShort(this.repeat); // loop count (extra iterations, 0=repeat forever)\r\n\t  this.out.writeByte(0); // block terminator\r\n\t};\r\n\t\r\n\t/*\r\n\t  Writes color table\r\n\t*/\r\n\tGIFEncoder.prototype.writePalette = function() {\r\n\t  this.out.writeBytes(this.colorTab);\r\n\t  var n = (3 * 256) - this.colorTab.length;\r\n\t  for (var i = 0; i < n; i++)\r\n\t    this.out.writeByte(0);\r\n\t};\r\n\t\r\n\tGIFEncoder.prototype.writeShort = function(pValue) {\r\n\t  this.out.writeByte(pValue & 0xFF);\r\n\t  this.out.writeByte((pValue >> 8) & 0xFF);\r\n\t};\r\n\t\r\n\t/*\r\n\t  Encodes and writes pixel data\r\n\t*/\r\n\tGIFEncoder.prototype.writePixels = function() {\r\n\t  var enc = new LZWEncoder(this.width, this.height, this.indexedPixels, this.colorDepth);\r\n\t  enc.encode(this.out);\r\n\t};\r\n\t\r\n\t/*\r\n\t  Retrieves the GIF stream\r\n\t*/\r\n\tGIFEncoder.prototype.stream = function() {\r\n\t  return this.out;\r\n\t};\r\n\t\r\n\tmodule.exports = GIFEncoder;\r\n\n\n/***/ },\n/* 2 */\n/***/ function(module, exports) {\n\n\t/* NeuQuant Neural-Net Quantization Algorithm\r\n\t * ------------------------------------------\r\n\t *\r\n\t * Copyright (c) 1994 Anthony Dekker\r\n\t *\r\n\t * NEUQUANT Neural-Net quantization algorithm by Anthony Dekker, 1994.\r\n\t * See \"Kohonen neural networks for optimal colour quantization\"\r\n\t * in \"Network: Computation in Neural Systems\" Vol. 5 (1994) pp 351-367.\r\n\t * for a discussion of the algorithm.\r\n\t * See also  http://members.ozemail.com.au/~dekker/NEUQUANT.HTML\r\n\t *\r\n\t * Any party obtaining a copy of these files from the author, directly or\r\n\t * indirectly, is granted, free of charge, a full and unrestricted irrevocable,\r\n\t * world-wide, paid up, royalty-free, nonexclusive right and license to deal\r\n\t * in this software and documentation files (the \"Software\"), including without\r\n\t * limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,\r\n\t * and/or sell copies of the Software, and to permit persons who receive\r\n\t * copies from any such party to do so, with the only requirement being\r\n\t * that this copyright notice remain intact.\r\n\t *\r\n\t * (JavaScript port 2012 by Johan Nordberg)\r\n\t *\r\n\t * Micro-optimization\r\n\t *  Roman Viskin (npm@terikon.com)\r\n\t */\r\n\t\r\n\tvar ncycles = 100; // number of learning cycles\r\n\tvar netsize = 256; // number of colors used\r\n\tvar maxnetpos = netsize - 1;\r\n\t\r\n\t// defs for freq and bias\r\n\tvar netbiasshift = 4; // bias for colour values\r\n\tvar intbiasshift = 16; // bias for fractions\r\n\tvar intbias = (1 << intbiasshift);\r\n\tvar gammashift = 10;\r\n\tvar gamma = (1 << gammashift);\r\n\tvar betashift = 10;\r\n\tvar beta = (intbias >> betashift); /* beta = 1/1024 */\r\n\tvar betagamma = (intbias << (gammashift - betashift));\r\n\t\r\n\t// defs for decreasing radius factor\r\n\tvar initrad = (netsize >> 3); // for 256 cols, radius starts\r\n\tvar radiusbiasshift = 6; // at 32.0 biased by 6 bits\r\n\tvar radiusbias = (1 << radiusbiasshift);\r\n\tvar initradius = (initrad * radiusbias); //and decreases by a\r\n\tvar radiusdec = 30; // factor of 1/30 each cycle\r\n\t\r\n\t// defs for decreasing alpha factor\r\n\tvar alphabiasshift = 10; // alpha starts at 1.0\r\n\tvar initalpha = (1 << alphabiasshift);\r\n\tvar alphadec; // biased by 10 bits\r\n\t\r\n\t/* radbias and alpharadbias used for radpower calculation */\r\n\tvar radbiasshift = 8;\r\n\tvar radbias = (1 << radbiasshift);\r\n\tvar alpharadbshift = (alphabiasshift + radbiasshift);\r\n\tvar alpharadbias = (1 << alpharadbshift);\r\n\t\r\n\t// four primes near 500 - assume no image has a length so large that it is\r\n\t// divisible by all four primes\r\n\tvar prime1 = 499;\r\n\tvar prime2 = 491;\r\n\tvar prime3 = 487;\r\n\tvar prime4 = 503;\r\n\tvar minpicturebytes = (3 * prime4);\r\n\t\r\n\t/*\r\n\t  Constructor: NeuQuant\r\n\t\r\n\t  Arguments:\r\n\t\r\n\t  pixels - array of pixels in RGB format\r\n\t  samplefac - sampling factor 1 to 30 where lower is better quality\r\n\t\r\n\t  >\r\n\t  > pixels = [r, g, b, r, g, b, r, g, b, ..]\r\n\t  >\r\n\t*/\r\n\tfunction NeuQuant(pixels, samplefac) {\r\n\t  var network; // int[netsize][4]\r\n\t  var netindex; // for network lookup - really 256\r\n\t\r\n\t  // bias and freq arrays for learning\r\n\t  var bias;\r\n\t  var freq;\r\n\t  var radpower;\r\n\t\r\n\t  /*\r\n\t    Private Method: init\r\n\t\r\n\t    sets up arrays\r\n\t  */\r\n\t  function init() {\r\n\t    network = [];\r\n\t    netindex = new Int32Array(256);\r\n\t    bias = new Int32Array(netsize);\r\n\t    freq = new Int32Array(netsize);\r\n\t    radpower = new Int32Array(netsize >> 3);\r\n\t\r\n\t    var i, v;\r\n\t    for (i = 0; i < netsize; i++) {\r\n\t      v = (i << (netbiasshift + 8)) / netsize;\r\n\t      network[i] = new Float64Array([v, v, v, 0]);\r\n\t      //network[i] = [v, v, v, 0]\r\n\t      freq[i] = intbias / netsize;\r\n\t      bias[i] = 0;\r\n\t    }\r\n\t  }\r\n\t\r\n\t  /*\r\n\t    Private Method: unbiasnet\r\n\t\r\n\t    unbiases network to give byte values 0..255 and record position i to prepare for sort\r\n\t  */\r\n\t  function unbiasnet() {\r\n\t    for (var i = 0; i < netsize; i++) {\r\n\t      network[i][0] >>= netbiasshift;\r\n\t      network[i][1] >>= netbiasshift;\r\n\t      network[i][2] >>= netbiasshift;\r\n\t      network[i][3] = i; // record color number\r\n\t    }\r\n\t  }\r\n\t\r\n\t  /*\r\n\t    Private Method: altersingle\r\n\t\r\n\t    moves neuron *i* towards biased (b,g,r) by factor *alpha*\r\n\t  */\r\n\t  function altersingle(alpha, i, b, g, r) {\r\n\t    network[i][0] -= (alpha * (network[i][0] - b)) / initalpha;\r\n\t    network[i][1] -= (alpha * (network[i][1] - g)) / initalpha;\r\n\t    network[i][2] -= (alpha * (network[i][2] - r)) / initalpha;\r\n\t  }\r\n\t\r\n\t  /*\r\n\t    Private Method: alterneigh\r\n\t\r\n\t    moves neurons in *radius* around index *i* towards biased (b,g,r) by factor *alpha*\r\n\t  */\r\n\t  function alterneigh(radius, i, b, g, r) {\r\n\t    var lo = Math.abs(i - radius);\r\n\t    var hi = Math.min(i + radius, netsize);\r\n\t\r\n\t    var j = i + 1;\r\n\t    var k = i - 1;\r\n\t    var m = 1;\r\n\t\r\n\t    var p, a;\r\n\t    while ((j < hi) || (k > lo)) {\r\n\t      a = radpower[m++];\r\n\t\r\n\t      if (j < hi) {\r\n\t        p = network[j++];\r\n\t        p[0] -= (a * (p[0] - b)) / alpharadbias;\r\n\t        p[1] -= (a * (p[1] - g)) / alpharadbias;\r\n\t        p[2] -= (a * (p[2] - r)) / alpharadbias;\r\n\t      }\r\n\t\r\n\t      if (k > lo) {\r\n\t        p = network[k--];\r\n\t        p[0] -= (a * (p[0] - b)) / alpharadbias;\r\n\t        p[1] -= (a * (p[1] - g)) / alpharadbias;\r\n\t        p[2] -= (a * (p[2] - r)) / alpharadbias;\r\n\t      }\r\n\t    }\r\n\t  }\r\n\t\r\n\t  /*\r\n\t    Private Method: contest\r\n\t\r\n\t    searches for biased BGR values\r\n\t    should be heavily optimized\r\n\t  */\r\n\t  function contest(b, g, r) {\r\n\t    /*\r\n\t      finds closest neuron (min dist) and updates freq\r\n\t      finds best neuron (min dist-bias) and returns position\r\n\t      for frequently chosen neurons, freq[i] is high and bias[i] is negative\r\n\t      bias[i] = gamma * ((1 / netsize) - freq[i])\r\n\t    */\r\n\t\r\n\t    b = b | 0;\r\n\t    g = g | 0;\r\n\t    r = r | 0;\r\n\t\r\n\t    var bestd = ~(1 << 31);\r\n\t    var bestbiasd = bestd;\r\n\t    var bestpos = -1;\r\n\t    var bestbiaspos = bestpos;\r\n\t\r\n\t    var i, n, dist, biasdist, betafreq;\r\n\t    for (i = 0; i < netsize; i++) {\r\n\t      n = network[i];\r\n\t\r\n\t      dist = (Math.abs((n[0] | 0) - b) + Math.abs((n[1] | 0) - g) + Math.abs((n[2] | 0) - r)) | 0;\r\n\t      if (dist < bestd) {\r\n\t        bestd = dist;\r\n\t        bestpos = i;\r\n\t      }\r\n\t\r\n\t      biasdist = dist - ((bias[i] | 0) >> (intbiasshift - netbiasshift));\r\n\t      if (biasdist < bestbiasd) {\r\n\t        bestbiasd = biasdist;\r\n\t        bestbiaspos = i;\r\n\t      }\r\n\t\r\n\t      betafreq = (freq[i] >> betashift);\r\n\t      freq[i] -= betafreq;\r\n\t      bias[i] += (betafreq << gammashift);\r\n\t    }\r\n\t\r\n\t    freq[bestpos] += beta;\r\n\t    bias[bestpos] -= betagamma;\r\n\t\r\n\t    return bestbiaspos;\r\n\t  }\r\n\t\r\n\t  /*\r\n\t    Private Method: inxbuild\r\n\t\r\n\t    sorts network and builds netindex[0..255]\r\n\t  */\r\n\t  function inxbuild() {\r\n\t    var i, j, p, q, smallpos, smallval, previouscol = 0, startpos = 0;\r\n\t    for (i = 0; i < netsize; i++) {\r\n\t      p = network[i];\r\n\t      smallpos = i;\r\n\t      smallval = p[1]; // index on g\r\n\t      // find smallest in i..netsize-1\r\n\t      for (j = i + 1; j < netsize; j++) {\r\n\t        q = network[j];\r\n\t        if (q[1] < smallval) { // index on g\r\n\t          smallpos = j;\r\n\t          smallval = q[1]; // index on g\r\n\t        }\r\n\t      }\r\n\t      q = network[smallpos];\r\n\t      // swap p (i) and q (smallpos) entries\r\n\t      if (i != smallpos) {\r\n\t        j = q[0];   q[0] = p[0];   p[0] = j;\r\n\t        j = q[1];   q[1] = p[1];   p[1] = j;\r\n\t        j = q[2];   q[2] = p[2];   p[2] = j;\r\n\t        j = q[3];   q[3] = p[3];   p[3] = j;\r\n\t      }\r\n\t      // smallval entry is now in position i\r\n\t\r\n\t      if (smallval != previouscol) {\r\n\t        netindex[previouscol] = (startpos + i) >> 1;\r\n\t        for (j = previouscol + 1; j < smallval; j++)\r\n\t          netindex[j] = i;\r\n\t        previouscol = smallval;\r\n\t        startpos = i;\r\n\t      }\r\n\t    }\r\n\t    netindex[previouscol] = (startpos + maxnetpos) >> 1;\r\n\t    for (j = previouscol + 1; j < 256; j++)\r\n\t      netindex[j] = maxnetpos; // really 256\r\n\t  }\r\n\t\r\n\t  /*\r\n\t    Private Method: inxsearch\r\n\t\r\n\t    searches for BGR values 0..255 and returns a color index\r\n\t    should be heavily optimized\r\n\t  */\r\n\t  function inxsearch(b, g, r) {\r\n\t\r\n\t    b = b | 0;\r\n\t    g = g | 0;\r\n\t    r = r | 0;\r\n\t\r\n\t    var a, p, dist;\r\n\t\r\n\t    var bestd = 1000; // biggest possible dist is 256*3\r\n\t    var best = -1;\r\n\t\r\n\t    var i = netindex[g] | 0; // index on g\r\n\t    var j = i - 1; // start at netindex[g] and work outwards\r\n\t\r\n\t    while ((i < netsize) || (j >= 0)) {\r\n\t      if (i < netsize) {\r\n\t        p = network[i];\r\n\t        dist = (p[1] | 0) - g; // inx key\r\n\t        if (dist >= bestd) i = netsize; // stop iter\r\n\t        else {\r\n\t          i++;\r\n\t          if (dist < 0) dist = -dist;\r\n\t          a = (p[0] | 0) - b; if (a < 0) a = -a;\r\n\t          dist += a;\r\n\t          if (dist < bestd) {\r\n\t            a = (p[2] | 0) - r; if (a < 0) a = -a;\r\n\t            dist += a;\r\n\t            if (dist < bestd) {\r\n\t              bestd = dist;\r\n\t              best = p[3] | 0;\r\n\t            }\r\n\t          }\r\n\t        }\r\n\t      }\r\n\t      if (j >= 0) {\r\n\t        p = network[j];\r\n\t        dist = g - (p[1] | 0); // inx key - reverse dif\r\n\t        if (dist >= bestd) j = -1; // stop iter\r\n\t        else {\r\n\t          j--;\r\n\t          if (dist < 0) dist = -dist;\r\n\t          a = (p[0] | 0) - b; if (a < 0) a = -a;\r\n\t          dist += a;\r\n\t          if (dist < bestd) {\r\n\t            a = (p[2] | 0) - r; if (a < 0) a = -a;\r\n\t            dist += a;\r\n\t            if (dist < bestd) {\r\n\t              bestd = dist;\r\n\t              best = p[3] | 0;\r\n\t            }\r\n\t          }\r\n\t        }\r\n\t      }\r\n\t    }\r\n\t\r\n\t    return best;\r\n\t  }\r\n\t\r\n\t  /*\r\n\t    Private Method: learn\r\n\t\r\n\t    \"Main Learning Loop\"\r\n\t  */\r\n\t  function learn() {\r\n\t    var i;\r\n\t\r\n\t    var lengthcount = pixels.length;\r\n\t    var alphadec = 30 + ((samplefac - 1) / 3);\r\n\t    var samplepixels = lengthcount / (3 * samplefac);\r\n\t    var delta = ~~(samplepixels / ncycles);\r\n\t    var alpha = initalpha;\r\n\t    var radius = initradius;\r\n\t\r\n\t    var rad = radius >> radiusbiasshift;\r\n\t\r\n\t    if (rad <= 1) rad = 0;\r\n\t    for (i = 0; i < rad; i++)\r\n\t      radpower[i] = alpha * (((rad * rad - i * i) * radbias) / (rad * rad));\r\n\t\r\n\t    var step;\r\n\t    if (lengthcount < minpicturebytes) {\r\n\t      samplefac = 1;\r\n\t      step = 3;\r\n\t    } else if ((lengthcount % prime1) !== 0) {\r\n\t      step = 3 * prime1;\r\n\t    } else if ((lengthcount % prime2) !== 0) {\r\n\t      step = 3 * prime2;\r\n\t    } else if ((lengthcount % prime3) !== 0)  {\r\n\t      step = 3 * prime3;\r\n\t    } else {\r\n\t      step = 3 * prime4;\r\n\t    }\r\n\t\r\n\t    var b, g, r, j;\r\n\t    var pix = 0; // current pixel\r\n\t\r\n\t    i = 0;\r\n\t    while (i < samplepixels) {\r\n\t      b = (pixels[pix] & 0xff) << netbiasshift;\r\n\t      g = (pixels[pix + 1] & 0xff) << netbiasshift;\r\n\t      r = (pixels[pix + 2] & 0xff) << netbiasshift;\r\n\t\r\n\t      j = contest(b, g, r);\r\n\t\r\n\t      altersingle(alpha, j, b, g, r);\r\n\t      if (rad !== 0) alterneigh(rad, j, b, g, r); // alter neighbours\r\n\t\r\n\t      pix += step;\r\n\t      if (pix >= lengthcount) pix -= lengthcount;\r\n\t\r\n\t      i++;\r\n\t\r\n\t      if (delta === 0) delta = 1;\r\n\t      if (i % delta === 0) {\r\n\t        alpha -= alpha / alphadec;\r\n\t        radius -= radius / radiusdec;\r\n\t        rad = radius >> radiusbiasshift;\r\n\t\r\n\t        if (rad <= 1) rad = 0;\r\n\t        for (j = 0; j < rad; j++)\r\n\t          radpower[j] = alpha * (((rad * rad - j * j) * radbias) / (rad * rad));\r\n\t      }\r\n\t    }\r\n\t  }\r\n\t\r\n\t  /*\r\n\t    Method: buildColormap\r\n\t\r\n\t    1. initializes network\r\n\t    2. trains it\r\n\t    3. removes misconceptions\r\n\t    4. builds colorindex\r\n\t  */\r\n\t  function buildColormap() {\r\n\t    init();\r\n\t    learn();\r\n\t    unbiasnet();\r\n\t    inxbuild();\r\n\t  }\r\n\t  this.buildColormap = buildColormap;\r\n\t\r\n\t  /*\r\n\t    Method: getColormap\r\n\t\r\n\t    builds colormap from the index\r\n\t\r\n\t    returns array in the format:\r\n\t\r\n\t    >\r\n\t    > [r, g, b, r, g, b, r, g, b, ..]\r\n\t    >\r\n\t  */\r\n\t  function getColormap() {\r\n\t    var map = [];\r\n\t    var index = [];\r\n\t\r\n\t    for (var i = 0; i < netsize; i++)\r\n\t      index[network[i][3]] = i;\r\n\t\r\n\t    var k = 0;\r\n\t    for (var l = 0; l < netsize; l++) {\r\n\t      var j = index[l];\r\n\t      map[k++] = (network[j][0]);\r\n\t      map[k++] = (network[j][1]);\r\n\t      map[k++] = (network[j][2]);\r\n\t    }\r\n\t    return map;\r\n\t  }\r\n\t  this.getColormap = getColormap;\r\n\t\r\n\t  /*\r\n\t    Method: lookupRGB\r\n\t\r\n\t    looks for the closest *r*, *g*, *b* color in the map and\r\n\t    returns its index\r\n\t  */\r\n\t  this.lookupRGB = inxsearch;\r\n\t}\r\n\t\r\n\tmodule.exports = NeuQuant;\r\n\n\n/***/ },\n/* 3 */\n/***/ function(module, exports) {\n\n\t/*\r\n\t  LZWEncoder.js\r\n\t\r\n\t  Authors\r\n\t  Kevin Weiner (original Java version - kweiner@fmsware.com)\r\n\t  Thibault Imbert (AS3 version - bytearray.org)\r\n\t  Johan Nordberg (JS version - code@johan-nordberg.com)\r\n\t\r\n\t  Acknowledgements\r\n\t  GIFCOMPR.C - GIF Image compression routines\r\n\t  Lempel-Ziv compression based on 'compress'. GIF modifications by\r\n\t  David Rowley (mgardi@watdcsu.waterloo.edu)\r\n\t  GIF Image compression - modified 'compress'\r\n\t  Based on: compress.c - File compression ala IEEE Computer, June 1984.\r\n\t  By Authors: Spencer W. Thomas (decvax!harpo!utah-cs!utah-gr!thomas)\r\n\t  Jim McKie (decvax!mcvax!jim)\r\n\t  Steve Davies (decvax!vax135!petsd!peora!srd)\r\n\t  Ken Turkowski (decvax!decwrl!turtlevax!ken)\r\n\t  James A. Woods (decvax!ihnp4!ames!jaw)\r\n\t  Joe Orost (decvax!vax135!petsd!joe)\r\n\t*/\r\n\t\r\n\tvar EOF = -1;\r\n\tvar BITS = 12;\r\n\tvar HSIZE = 5003; // 80% occupancy\r\n\tvar masks = [0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F,\r\n\t             0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF,\r\n\t             0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF];\r\n\t\r\n\tfunction LZWEncoder(width, height, pixels, colorDepth) {\r\n\t  var initCodeSize = Math.max(2, colorDepth);\r\n\t\r\n\t  var accum = new Uint8Array(256);\r\n\t  var htab = new Int32Array(HSIZE);\r\n\t  var codetab = new Int32Array(HSIZE);\r\n\t\r\n\t  var cur_accum, cur_bits = 0;\r\n\t  var a_count;\r\n\t  var free_ent = 0; // first unused entry\r\n\t  var maxcode;\r\n\t\r\n\t  // block compression parameters -- after all codes are used up,\r\n\t  // and compression rate changes, start over.\r\n\t  var clear_flg = false;\r\n\t\r\n\t  // Algorithm: use open addressing double hashing (no chaining) on the\r\n\t  // prefix code / next character combination. We do a variant of Knuth's\r\n\t  // algorithm D (vol. 3, sec. 6.4) along with G. Knott's relatively-prime\r\n\t  // secondary probe. Here, the modular division first probe is gives way\r\n\t  // to a faster exclusive-or manipulation. Also do block compression with\r\n\t  // an adaptive reset, whereby the code table is cleared when the compression\r\n\t  // ratio decreases, but after the table fills. The variable-length output\r\n\t  // codes are re-sized at this point, and a special CLEAR code is generated\r\n\t  // for the decompressor. Late addition: construct the table according to\r\n\t  // file size for noticeable speed improvement on small files. Please direct\r\n\t  // questions about this implementation to ames!jaw.\r\n\t  var g_init_bits, ClearCode, EOFCode;\r\n\t\r\n\t  // Add a character to the end of the current packet, and if it is 254\r\n\t  // characters, flush the packet to disk.\r\n\t  function char_out(c, outs) {\r\n\t    accum[a_count++] = c;\r\n\t    if (a_count >= 254) flush_char(outs);\r\n\t  }\r\n\t\r\n\t  // Clear out the hash table\r\n\t  // table clear for block compress\r\n\t  function cl_block(outs) {\r\n\t    cl_hash(HSIZE);\r\n\t    free_ent = ClearCode + 2;\r\n\t    clear_flg = true;\r\n\t    output(ClearCode, outs);\r\n\t  }\r\n\t\r\n\t  // Reset code table\r\n\t  function cl_hash(hsize) {\r\n\t    for (var i = 0; i < hsize; ++i) htab[i] = -1;\r\n\t  }\r\n\t\r\n\t  function compress(init_bits, outs) {\r\n\t    var fcode, c, i, ent, disp, hsize_reg, hshift;\r\n\t\r\n\t    // Set up the globals: g_init_bits - initial number of bits\r\n\t    g_init_bits = init_bits;\r\n\t\r\n\t    // Set up the necessary values\r\n\t    clear_flg = false;\r\n\t    n_bits = g_init_bits;\r\n\t    maxcode = MAXCODE(n_bits);\r\n\t\r\n\t    ClearCode = 1 << (init_bits - 1);\r\n\t    EOFCode = ClearCode + 1;\r\n\t    free_ent = ClearCode + 2;\r\n\t\r\n\t    a_count = 0; // clear packet\r\n\t\r\n\t    ent = nextPixel();\r\n\t\r\n\t    hshift = 0;\r\n\t    for (fcode = HSIZE; fcode < 65536; fcode *= 2) ++hshift;\r\n\t    hshift = 8 - hshift; // set hash code range bound\r\n\t    hsize_reg = HSIZE;\r\n\t    cl_hash(hsize_reg); // clear hash table\r\n\t\r\n\t    output(ClearCode, outs);\r\n\t\r\n\t    outer_loop: while ((c = nextPixel()) != EOF) {\r\n\t      fcode = (c << BITS) + ent;\r\n\t      i = (c << hshift) ^ ent; // xor hashing\r\n\t      if (htab[i] === fcode) {\r\n\t        ent = codetab[i];\r\n\t        continue;\r\n\t      } else if (htab[i] >= 0) { // non-empty slot\r\n\t        disp = hsize_reg - i; // secondary hash (after G. Knott)\r\n\t        if (i === 0) disp = 1;\r\n\t        do {\r\n\t          if ((i -= disp) < 0) i += hsize_reg;\r\n\t          if (htab[i] === fcode) {\r\n\t            ent = codetab[i];\r\n\t            continue outer_loop;\r\n\t          }\r\n\t        } while (htab[i] >= 0);\r\n\t      }\r\n\t      output(ent, outs);\r\n\t      ent = c;\r\n\t      if (free_ent < 1 << BITS) {\r\n\t        codetab[i] = free_ent++; // code -> hashtable\r\n\t        htab[i] = fcode;\r\n\t      } else {\r\n\t        cl_block(outs);\r\n\t      }\r\n\t    }\r\n\t\r\n\t    // Put out the final code.\r\n\t    output(ent, outs);\r\n\t    output(EOFCode, outs);\r\n\t  }\r\n\t\r\n\t  function encode(outs) {\r\n\t    outs.writeByte(initCodeSize); // write \"initial code size\" byte\r\n\t    remaining = width * height; // reset navigation variables\r\n\t    curPixel = 0;\r\n\t    compress(initCodeSize + 1, outs); // compress and write the pixel data\r\n\t    outs.writeByte(0); // write block terminator\r\n\t  }\r\n\t\r\n\t  // Flush the packet to disk, and reset the accumulator\r\n\t  function flush_char(outs) {\r\n\t    if (a_count > 0) {\r\n\t      outs.writeByte(a_count);\r\n\t      outs.writeBytes(accum, 0, a_count);\r\n\t      a_count = 0;\r\n\t    }\r\n\t  }\r\n\t\r\n\t  function MAXCODE(n_bits) {\r\n\t    return (1 << n_bits) - 1;\r\n\t  }\r\n\t\r\n\t  // Return the next pixel from the image\r\n\t  function nextPixel() {\r\n\t    if (remaining === 0) return EOF;\r\n\t    --remaining;\r\n\t    var pix = pixels[curPixel++];\r\n\t    return pix & 0xff;\r\n\t  }\r\n\t\r\n\t  function output(code, outs) {\r\n\t    cur_accum &= masks[cur_bits];\r\n\t\r\n\t    if (cur_bits > 0) cur_accum |= (code << cur_bits);\r\n\t    else cur_accum = code;\r\n\t\r\n\t    cur_bits += n_bits;\r\n\t\r\n\t    while (cur_bits >= 8) {\r\n\t      char_out((cur_accum & 0xff), outs);\r\n\t      cur_accum >>= 8;\r\n\t      cur_bits -= 8;\r\n\t    }\r\n\t\r\n\t    // If the next entry is going to be too big for the code size,\r\n\t    // then increase it, if possible.\r\n\t    if (free_ent > maxcode || clear_flg) {\r\n\t      if (clear_flg) {\r\n\t        maxcode = MAXCODE(n_bits = g_init_bits);\r\n\t        clear_flg = false;\r\n\t      } else {\r\n\t        ++n_bits;\r\n\t        if (n_bits == BITS) maxcode = 1 << BITS;\r\n\t        else maxcode = MAXCODE(n_bits);\r\n\t      }\r\n\t    }\r\n\t\r\n\t    if (code == EOFCode) {\r\n\t      // At EOF, write the rest of the buffer.\r\n\t      while (cur_bits > 0) {\r\n\t        char_out((cur_accum & 0xff), outs);\r\n\t        cur_accum >>= 8;\r\n\t        cur_bits -= 8;\r\n\t      }\r\n\t      flush_char(outs);\r\n\t    }\r\n\t  }\r\n\t\r\n\t  this.encode = encode;\r\n\t}\r\n\t\r\n\tmodule.exports = LZWEncoder;\r\n\n\n/***/ }\n/******/ ]);\n\n\n/** WEBPACK FOOTER **\n ** gif.worker.js\n **/"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId])\n \t\t\treturn installedModules[moduleId].exports;\n\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\texports: {},\n \t\t\tid: moduleId,\n \t\t\tloaded: false\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.loaded = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(0);\n\n\n\n/** WEBPACK FOOTER **\n ** webpack/bootstrap 111b1cbdbfe2d1566bf3\n **/","GIFEncoder = require './GIFEncoder.js'\r\n\r\nrenderFrame = (frame) ->\r\n  encoder = new GIFEncoder frame.width, frame.height\r\n\r\n  if frame.index is 0\r\n    encoder.writeHeader()\r\n  else\r\n    encoder.firstFrame = false\r\n\r\n  encoder.setTransparent frame.transparent\r\n  encoder.setRepeat frame.repeat\r\n  encoder.setDelay frame.delay\r\n  encoder.setQuality frame.quality\r\n  encoder.setDither frame.dither\r\n  encoder.setGlobalPalette frame.globalPalette\r\n  encoder.addFrame frame.data\r\n  encoder.finish() if frame.last\r\n  if frame.globalPalette == true\r\n    frame.globalPalette = encoder.getGlobalPalette()\r\n\r\n  stream = encoder.stream()\r\n  frame.data = stream.pages\r\n  frame.cursor = stream.cursor\r\n  frame.pageSize = stream.constructor.pageSize\r\n\r\n  if frame.canTransfer\r\n    transfer = (page.buffer for page in frame.data)\r\n    self.postMessage frame, transfer\r\n  else\r\n    self.postMessage frame\r\n\r\nself.onmessage = (event) -> renderFrame event.data\r\n\n\n\n/** WEBPACK FOOTER **\n ** ./src/gif.worker.coffee\n **/","/*\r\n  GIFEncoder.js\r\n\r\n  Authors\r\n  Kevin Weiner (original Java version - kweiner@fmsware.com)\r\n  Thibault Imbert (AS3 version - bytearray.org)\r\n  Johan Nordberg (JS version - code@johan-nordberg.com)\r\n*/\r\n\r\nvar NeuQuant = require('./TypedNeuQuant.js');\r\nvar LZWEncoder = require('./LZWEncoder.js');\r\n\r\nfunction ByteArray() {\r\n  this.page = -1;\r\n  this.pages = [];\r\n  this.newPage();\r\n}\r\n\r\nByteArray.pageSize = 4096;\r\nByteArray.charMap = {};\r\n\r\nfor (var i = 0; i < 256; i++)\r\n  ByteArray.charMap[i] = String.fromCharCode(i);\r\n\r\nByteArray.prototype.newPage = function() {\r\n  this.pages[++this.page] = new Uint8Array(ByteArray.pageSize);\r\n  this.cursor = 0;\r\n};\r\n\r\nByteArray.prototype.getData = function() {\r\n  var rv = '';\r\n  for (var p = 0; p < this.pages.length; p++) {\r\n    for (var i = 0; i < ByteArray.pageSize; i++) {\r\n      rv += ByteArray.charMap[this.pages[p][i]];\r\n    }\r\n  }\r\n  return rv;\r\n};\r\n\r\nByteArray.prototype.writeByte = function(val) {\r\n  if (this.cursor >= ByteArray.pageSize) this.newPage();\r\n  this.pages[this.page][this.cursor++] = val;\r\n};\r\n\r\nByteArray.prototype.writeUTFBytes = function(string) {\r\n  for (var l = string.length, i = 0; i < l; i++)\r\n    this.writeByte(string.charCodeAt(i));\r\n};\r\n\r\nByteArray.prototype.writeBytes = function(array, offset, length) {\r\n  for (var l = length || array.length, i = offset || 0; i < l; i++)\r\n    this.writeByte(array[i]);\r\n};\r\n\r\nfunction GIFEncoder(width, height) {\r\n  // image size\r\n  this.width = ~~width;\r\n  this.height = ~~height;\r\n\r\n  // transparent color if given\r\n  this.transparent = null;\r\n\r\n  // transparent index in color table\r\n  this.transIndex = 0;\r\n\r\n  // -1 = no repeat, 0 = forever. anything else is repeat count\r\n  this.repeat = -1;\r\n\r\n  // frame delay (hundredths)\r\n  this.delay = 0;\r\n\r\n  this.image = null; // current frame\r\n  this.pixels = null; // BGR byte array from frame\r\n  this.indexedPixels = null; // converted frame indexed to palette\r\n  this.colorDepth = null; // number of bit planes\r\n  this.colorTab = null; // RGB palette\r\n  this.neuQuant = null; // NeuQuant instance that was used to generate this.colorTab.\r\n  this.usedEntry = new Array(); // active palette entries\r\n  this.palSize = 7; // color table size (bits-1)\r\n  this.dispose = -1; // disposal code (-1 = use default)\r\n  this.firstFrame = true;\r\n  this.sample = 10; // default sample interval for quantizer\r\n  this.dither = false; // default dithering\r\n  this.globalPalette = false;\r\n\r\n  this.out = new ByteArray();\r\n}\r\n\r\n/*\r\n  Sets the delay time between each frame, or changes it for subsequent frames\r\n  (applies to last frame added)\r\n*/\r\nGIFEncoder.prototype.setDelay = function(milliseconds) {\r\n  this.delay = Math.round(milliseconds / 10);\r\n};\r\n\r\n/*\r\n  Sets frame rate in frames per second.\r\n*/\r\nGIFEncoder.prototype.setFrameRate = function(fps) {\r\n  this.delay = Math.round(100 / fps);\r\n};\r\n\r\n/*\r\n  Sets the GIF frame disposal code for the last added frame and any\r\n  subsequent frames.\r\n\r\n  Default is 0 if no transparent color has been set, otherwise 2.\r\n*/\r\nGIFEncoder.prototype.setDispose = function(disposalCode) {\r\n  if (disposalCode >= 0) this.dispose = disposalCode;\r\n};\r\n\r\n/*\r\n  Sets the number of times the set of GIF frames should be played.\r\n\r\n  -1 = play once\r\n  0 = repeat indefinitely\r\n\r\n  Default is -1\r\n\r\n  Must be invoked before the first image is added\r\n*/\r\n\r\nGIFEncoder.prototype.setRepeat = function(repeat) {\r\n  this.repeat = repeat;\r\n};\r\n\r\n/*\r\n  Sets the transparent color for the last added frame and any subsequent\r\n  frames. Since all colors are subject to modification in the quantization\r\n  process, the color in the final palette for each frame closest to the given\r\n  color becomes the transparent color for that frame. May be set to null to\r\n  indicate no transparent color.\r\n*/\r\nGIFEncoder.prototype.setTransparent = function(color) {\r\n  this.transparent = color;\r\n};\r\n\r\n/*\r\n  Adds next GIF frame. The frame is not written immediately, but is\r\n  actually deferred until the next frame is received so that timing\r\n  data can be inserted.  Invoking finish() flushes all frames.\r\n*/\r\nGIFEncoder.prototype.addFrame = function(imageData) {\r\n  this.image = imageData;\r\n\r\n  this.colorTab = this.globalPalette && this.globalPalette.slice ? this.globalPalette : null;\r\n\r\n  this.getImagePixels(); // convert to correct format if necessary\r\n  this.analyzePixels(); // build color table & map pixels\r\n\r\n  if (this.globalPalette === true) this.globalPalette = this.colorTab;\r\n\r\n  if (this.firstFrame) {\r\n    this.writeLSD(); // logical screen descriptior\r\n    this.writePalette(); // global color table\r\n    if (this.repeat >= 0) {\r\n      // use NS app extension to indicate reps\r\n      this.writeNetscapeExt();\r\n    }\r\n  }\r\n\r\n  this.writeGraphicCtrlExt(); // write graphic control extension\r\n  this.writeImageDesc(); // image descriptor\r\n  if (!this.firstFrame && !this.globalPalette) this.writePalette(); // local color table\r\n  this.writePixels(); // encode and write pixel data\r\n\r\n  this.firstFrame = false;\r\n};\r\n\r\n/*\r\n  Adds final trailer to the GIF stream, if you don't call the finish method\r\n  the GIF stream will not be valid.\r\n*/\r\nGIFEncoder.prototype.finish = function() {\r\n  this.out.writeByte(0x3b); // gif trailer\r\n};\r\n\r\n/*\r\n  Sets quality of color quantization (conversion of images to the maximum 256\r\n  colors allowed by the GIF specification). Lower values (minimum = 1)\r\n  produce better colors, but slow processing significantly. 10 is the\r\n  default, and produces good color mapping at reasonable speeds. Values\r\n  greater than 20 do not yield significant improvements in speed.\r\n*/\r\nGIFEncoder.prototype.setQuality = function(quality) {\r\n  if (quality < 1) quality = 1;\r\n  this.sample = quality;\r\n};\r\n\r\n/*\r\n  Sets dithering method. Available are:\r\n  - FALSE no dithering\r\n  - TRUE or FloydSteinberg\r\n  - FalseFloydSteinberg\r\n  - Stucki\r\n  - Atkinson\r\n  You can add '-serpentine' to use serpentine scanning\r\n*/\r\nGIFEncoder.prototype.setDither = function(dither) {\r\n  if (dither === true) dither = 'FloydSteinberg';\r\n  this.dither = dither;\r\n};\r\n\r\n/*\r\n  Sets global palette for all frames.\r\n  You can provide TRUE to create global palette from first picture.\r\n  Or an array of r,g,b,r,g,b,...\r\n*/\r\nGIFEncoder.prototype.setGlobalPalette = function(palette) {\r\n  this.globalPalette = palette;\r\n};\r\n\r\n/*\r\n  Returns global palette used for all frames.\r\n  If setGlobalPalette(true) was used, then this function will return\r\n  calculated palette after the first frame is added.\r\n*/\r\nGIFEncoder.prototype.getGlobalPalette = function() {\r\n  return (this.globalPalette && this.globalPalette.slice && this.globalPalette.slice(0)) || this.globalPalette;\r\n};\r\n\r\n/*\r\n  Writes GIF file header\r\n*/\r\nGIFEncoder.prototype.writeHeader = function() {\r\n  this.out.writeUTFBytes(\"GIF89a\");\r\n};\r\n\r\n/*\r\n  Analyzes current frame colors and creates color map.\r\n*/\r\nGIFEncoder.prototype.analyzePixels = function() {\r\n  if (!this.colorTab) {\r\n    this.neuQuant = new NeuQuant(this.pixels, this.sample);\r\n    this.neuQuant.buildColormap(); // create reduced palette\r\n    this.colorTab = this.neuQuant.getColormap();\r\n  }\r\n\r\n  // map image pixels to new palette\r\n  if (this.dither) {\r\n    this.ditherPixels(this.dither.replace('-serpentine', ''), this.dither.match(/-serpentine/) !== null);\r\n  } else {\r\n    this.indexPixels();\r\n  }\r\n\r\n  this.pixels = null;\r\n  this.colorDepth = 8;\r\n  this.palSize = 7;\r\n\r\n  // get closest match to transparent color if specified\r\n  if (this.transparent !== null) {\r\n    this.transIndex = this.findClosest(this.transparent, true);\r\n  }\r\n};\r\n\r\n/*\r\n  Index pixels, without dithering\r\n  This method is most expensive (75% of time) because of calls to findClosestRGB, and findClosestRGB should be optimized.\r\n*/\r\nGIFEncoder.prototype.indexPixels = function() {\r\n  var nPix = this.pixels.length / 3;\r\n  this.indexedPixels = new Uint8Array(nPix);\r\n  var k = 0;\r\n  for (var j = 0; j < nPix; j++) {\r\n    var index = this.findClosestRGB(\r\n      this.pixels[k++] & 0xff,\r\n      this.pixels[k++] & 0xff,\r\n      this.pixels[k++] & 0xff\r\n    );\r\n    this.usedEntry[index] = true;\r\n    this.indexedPixels[j] = index;\r\n  }\r\n};\r\n\r\n/*\r\n  Taken from http://jsbin.com/iXofIji/2/edit by PAEz\r\n*/\r\nGIFEncoder.prototype.ditherPixels = function(kernel, serpentine) {\r\n  var kernels = {\r\n    FalseFloydSteinberg: [\r\n      [3 / 8, 1, 0],\r\n      [3 / 8, 0, 1],\r\n      [2 / 8, 1, 1]\r\n    ],\r\n    FloydSteinberg: [\r\n      [7 / 16, 1, 0],\r\n      [3 / 16, -1, 1],\r\n      [5 / 16, 0, 1],\r\n      [1 / 16, 1, 1]\r\n    ],\r\n    Stucki: [\r\n      [8 / 42, 1, 0],\r\n      [4 / 42, 2, 0],\r\n      [2 / 42, -2, 1],\r\n      [4 / 42, -1, 1],\r\n      [8 / 42, 0, 1],\r\n      [4 / 42, 1, 1],\r\n      [2 / 42, 2, 1],\r\n      [1 / 42, -2, 2],\r\n      [2 / 42, -1, 2],\r\n      [4 / 42, 0, 2],\r\n      [2 / 42, 1, 2],\r\n      [1 / 42, 2, 2]\r\n    ],\r\n    Atkinson: [\r\n      [1 / 8, 1, 0],\r\n      [1 / 8, 2, 0],\r\n      [1 / 8, -1, 1],\r\n      [1 / 8, 0, 1],\r\n      [1 / 8, 1, 1],\r\n      [1 / 8, 0, 2]\r\n    ]\r\n  };\r\n\r\n  if (!kernel || !kernels[kernel]) {\r\n    throw 'Unknown dithering kernel: ' + kernel;\r\n  }\r\n\r\n  var ds = kernels[kernel];\r\n  var index = 0,\r\n    height = this.height,\r\n    width = this.width,\r\n    data = this.pixels;\r\n  var direction = serpentine ? -1 : 1;\r\n\r\n  this.indexedPixels = new Uint8Array(this.pixels.length / 3);\r\n\r\n  for (var y = 0; y < height; y++) {\r\n\r\n    if (serpentine) direction = direction * -1;\r\n\r\n    for (var x = (direction == 1 ? 0 : width - 1), xend = (direction == 1 ? width : 0); x !== xend; x += direction) {\r\n\r\n      index = (y * width) + x;\r\n      // Get original colour\r\n      var idx = index * 3;\r\n      var r1 = data[idx];\r\n      var g1 = data[idx + 1];\r\n      var b1 = data[idx + 2];\r\n\r\n      // Get converted colour\r\n      idx = this.findClosestRGB(r1, g1, b1);\r\n      this.usedEntry[idx] = true;\r\n      this.indexedPixels[index] = idx;\r\n      idx *= 3;\r\n      var r2 = this.colorTab[idx];\r\n      var g2 = this.colorTab[idx + 1];\r\n      var b2 = this.colorTab[idx + 2];\r\n\r\n      var er = r1 - r2;\r\n      var eg = g1 - g2;\r\n      var eb = b1 - b2;\r\n\r\n      for (var i = (direction == 1 ? 0: ds.length - 1), end = (direction == 1 ? ds.length : 0); i !== end; i += direction) {\r\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....\r\n        var y1 = ds[i][2];\r\n        if (x1 + x >= 0 && x1 + x < width && y1 + y >= 0 && y1 + y < height) {\r\n          var d = ds[i][0];\r\n          idx = index + x1 + (y1 * width);\r\n          idx *= 3;\r\n\r\n          data[idx] = Math.max(0, Math.min(255, data[idx] + er * d));\r\n          data[idx + 1] = Math.max(0, Math.min(255, data[idx + 1] + eg * d));\r\n          data[idx + 2] = Math.max(0, Math.min(255, data[idx + 2] + eb * d));\r\n        }\r\n      }\r\n    }\r\n  }\r\n};\r\n\r\n/*\r\n  Returns index of palette color closest to c\r\n*/\r\nGIFEncoder.prototype.findClosest = function(c, used) {\r\n  return this.findClosestRGB((c & 0xFF0000) >> 16, (c & 0x00FF00) >> 8, (c & 0x0000FF), used);\r\n};\r\n\r\n// Should be heavily optimized\r\nGIFEncoder.prototype.findClosestRGB = function(r, g, b, used) {\r\n  if (this.colorTab === null) return -1;\r\n\r\n  if (this.neuQuant && !used) {\r\n    return this.neuQuant.lookupRGB(r, g, b);\r\n  }\r\n  \r\n  var c = b | (g << 8) | (r << 16);\r\n\r\n  var minpos = 0;\r\n  var dmin = 256 * 256 * 256;\r\n  var len = this.colorTab.length;\r\n\r\n  for (var i = 0, index = 0; i < len; index++) {\r\n    var dr = r - (this.colorTab[i++] & 0xff);\r\n    var dg = g - (this.colorTab[i++] & 0xff);\r\n    var db = b - (this.colorTab[i++] & 0xff);\r\n    var d = dr * dr + dg * dg + db * db;\r\n    if ((!used || this.usedEntry[index]) && (d < dmin)) {\r\n      dmin = d;\r\n      minpos = index;\r\n    }\r\n  }\r\n\r\n  return minpos;\r\n};\r\n\r\n/*\r\n  Extracts image pixels into byte array pixels\r\n  (removes alphachannel from canvas imagedata)\r\n*/\r\nGIFEncoder.prototype.getImagePixels = function() {\r\n  var w = this.width;\r\n  var h = this.height;\r\n  this.pixels = new Uint8Array(w * h * 3);\r\n\r\n  var data = this.image;\r\n  var srcPos = 0;\r\n  var count = 0;\r\n\r\n  for (var i = 0; i < h; i++) {\r\n    for (var j = 0; j < w; j++) {\r\n      this.pixels[count++] = data[srcPos++];\r\n      this.pixels[count++] = data[srcPos++];\r\n      this.pixels[count++] = data[srcPos++];\r\n      srcPos++;\r\n    }\r\n  }\r\n};\r\n\r\n/*\r\n  Writes Graphic Control Extension\r\n*/\r\nGIFEncoder.prototype.writeGraphicCtrlExt = function() {\r\n  this.out.writeByte(0x21); // extension introducer\r\n  this.out.writeByte(0xf9); // GCE label\r\n  this.out.writeByte(4); // data block size\r\n\r\n  var transp, disp;\r\n  if (this.transparent === null) {\r\n    transp = 0;\r\n    disp = 0; // dispose = no action\r\n  } else {\r\n    transp = 1;\r\n    disp = 2; // force clear if using transparent color\r\n  }\r\n\r\n  if (this.dispose >= 0) {\r\n    disp = dispose & 7; // user override\r\n  }\r\n  disp <<= 2;\r\n\r\n  // packed fields\r\n  this.out.writeByte(\r\n    0 | // 1:3 reserved\r\n    disp | // 4:6 disposal\r\n    0 | // 7 user input - 0 = none\r\n    transp // 8 transparency flag\r\n  );\r\n\r\n  this.writeShort(this.delay); // delay x 1/100 sec\r\n  this.out.writeByte(this.transIndex); // transparent color index\r\n  this.out.writeByte(0); // block terminator\r\n};\r\n\r\n/*\r\n  Writes Image Descriptor\r\n*/\r\nGIFEncoder.prototype.writeImageDesc = function() {\r\n  this.out.writeByte(0x2c); // image separator\r\n  this.writeShort(0); // image position x,y = 0,0\r\n  this.writeShort(0);\r\n  this.writeShort(this.width); // image size\r\n  this.writeShort(this.height);\r\n\r\n  // packed fields\r\n  if (this.firstFrame || this.globalPalette) {\r\n    // no LCT - GCT is used for first (or only) frame\r\n    this.out.writeByte(0);\r\n  } else {\r\n    // specify normal LCT\r\n    this.out.writeByte(\r\n      0x80 | // 1 local color table 1=yes\r\n      0 | // 2 interlace - 0=no\r\n      0 | // 3 sorted - 0=no\r\n      0 | // 4-5 reserved\r\n      this.palSize // 6-8 size of color table\r\n    );\r\n  }\r\n};\r\n\r\n/*\r\n  Writes Logical Screen Descriptor\r\n*/\r\nGIFEncoder.prototype.writeLSD = function() {\r\n  // logical screen size\r\n  this.writeShort(this.width);\r\n  this.writeShort(this.height);\r\n\r\n  // packed fields\r\n  this.out.writeByte(\r\n    0x80 | // 1 : global color table flag = 1 (gct used)\r\n    0x70 | // 2-4 : color resolution = 7\r\n    0x00 | // 5 : gct sort flag = 0\r\n    this.palSize // 6-8 : gct size\r\n  );\r\n\r\n  this.out.writeByte(0); // background color index\r\n  this.out.writeByte(0); // pixel aspect ratio - assume 1:1\r\n};\r\n\r\n/*\r\n  Writes Netscape application extension to define repeat count.\r\n*/\r\nGIFEncoder.prototype.writeNetscapeExt = function() {\r\n  this.out.writeByte(0x21); // extension introducer\r\n  this.out.writeByte(0xff); // app extension label\r\n  this.out.writeByte(11); // block size\r\n  this.out.writeUTFBytes('NETSCAPE2.0'); // app id + auth code\r\n  this.out.writeByte(3); // sub-block size\r\n  this.out.writeByte(1); // loop sub-block id\r\n  this.writeShort(this.repeat); // loop count (extra iterations, 0=repeat forever)\r\n  this.out.writeByte(0); // block terminator\r\n};\r\n\r\n/*\r\n  Writes color table\r\n*/\r\nGIFEncoder.prototype.writePalette = function() {\r\n  this.out.writeBytes(this.colorTab);\r\n  var n = (3 * 256) - this.colorTab.length;\r\n  for (var i = 0; i < n; i++)\r\n    this.out.writeByte(0);\r\n};\r\n\r\nGIFEncoder.prototype.writeShort = function(pValue) {\r\n  this.out.writeByte(pValue & 0xFF);\r\n  this.out.writeByte((pValue >> 8) & 0xFF);\r\n};\r\n\r\n/*\r\n  Encodes and writes pixel data\r\n*/\r\nGIFEncoder.prototype.writePixels = function() {\r\n  var enc = new LZWEncoder(this.width, this.height, this.indexedPixels, this.colorDepth);\r\n  enc.encode(this.out);\r\n};\r\n\r\n/*\r\n  Retrieves the GIF stream\r\n*/\r\nGIFEncoder.prototype.stream = function() {\r\n  return this.out;\r\n};\r\n\r\nmodule.exports = GIFEncoder;\r\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./src/GIFEncoder.js\n ** module id = 1\n ** module chunks = 0\n **/","/* NeuQuant Neural-Net Quantization Algorithm\r\n * ------------------------------------------\r\n *\r\n * Copyright (c) 1994 Anthony Dekker\r\n *\r\n * NEUQUANT Neural-Net quantization algorithm by Anthony Dekker, 1994.\r\n * See \"Kohonen neural networks for optimal colour quantization\"\r\n * in \"Network: Computation in Neural Systems\" Vol. 5 (1994) pp 351-367.\r\n * for a discussion of the algorithm.\r\n * See also  http://members.ozemail.com.au/~dekker/NEUQUANT.HTML\r\n *\r\n * Any party obtaining a copy of these files from the author, directly or\r\n * indirectly, is granted, free of charge, a full and unrestricted irrevocable,\r\n * world-wide, paid up, royalty-free, nonexclusive right and license to deal\r\n * in this software and documentation files (the \"Software\"), including without\r\n * limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,\r\n * and/or sell copies of the Software, and to permit persons who receive\r\n * copies from any such party to do so, with the only requirement being\r\n * that this copyright notice remain intact.\r\n *\r\n * (JavaScript port 2012 by Johan Nordberg)\r\n *\r\n * Micro-optimization\r\n *  Roman Viskin (npm@terikon.com)\r\n */\r\n\r\nvar ncycles = 100; // number of learning cycles\r\nvar netsize = 256; // number of colors used\r\nvar maxnetpos = netsize - 1;\r\n\r\n// defs for freq and bias\r\nvar netbiasshift = 4; // bias for colour values\r\nvar intbiasshift = 16; // bias for fractions\r\nvar intbias = (1 << intbiasshift);\r\nvar gammashift = 10;\r\nvar gamma = (1 << gammashift);\r\nvar betashift = 10;\r\nvar beta = (intbias >> betashift); /* beta = 1/1024 */\r\nvar betagamma = (intbias << (gammashift - betashift));\r\n\r\n// defs for decreasing radius factor\r\nvar initrad = (netsize >> 3); // for 256 cols, radius starts\r\nvar radiusbiasshift = 6; // at 32.0 biased by 6 bits\r\nvar radiusbias = (1 << radiusbiasshift);\r\nvar initradius = (initrad * radiusbias); //and decreases by a\r\nvar radiusdec = 30; // factor of 1/30 each cycle\r\n\r\n// defs for decreasing alpha factor\r\nvar alphabiasshift = 10; // alpha starts at 1.0\r\nvar initalpha = (1 << alphabiasshift);\r\nvar alphadec; // biased by 10 bits\r\n\r\n/* radbias and alpharadbias used for radpower calculation */\r\nvar radbiasshift = 8;\r\nvar radbias = (1 << radbiasshift);\r\nvar alpharadbshift = (alphabiasshift + radbiasshift);\r\nvar alpharadbias = (1 << alpharadbshift);\r\n\r\n// four primes near 500 - assume no image has a length so large that it is\r\n// divisible by all four primes\r\nvar prime1 = 499;\r\nvar prime2 = 491;\r\nvar prime3 = 487;\r\nvar prime4 = 503;\r\nvar minpicturebytes = (3 * prime4);\r\n\r\n/*\r\n  Constructor: NeuQuant\r\n\r\n  Arguments:\r\n\r\n  pixels - array of pixels in RGB format\r\n  samplefac - sampling factor 1 to 30 where lower is better quality\r\n\r\n  >\r\n  > pixels = [r, g, b, r, g, b, r, g, b, ..]\r\n  >\r\n*/\r\nfunction NeuQuant(pixels, samplefac) {\r\n  var network; // int[netsize][4]\r\n  var netindex; // for network lookup - really 256\r\n\r\n  // bias and freq arrays for learning\r\n  var bias;\r\n  var freq;\r\n  var radpower;\r\n\r\n  /*\r\n    Private Method: init\r\n\r\n    sets up arrays\r\n  */\r\n  function init() {\r\n    network = [];\r\n    netindex = new Int32Array(256);\r\n    bias = new Int32Array(netsize);\r\n    freq = new Int32Array(netsize);\r\n    radpower = new Int32Array(netsize >> 3);\r\n\r\n    var i, v;\r\n    for (i = 0; i < netsize; i++) {\r\n      v = (i << (netbiasshift + 8)) / netsize;\r\n      network[i] = new Float64Array([v, v, v, 0]);\r\n      //network[i] = [v, v, v, 0]\r\n      freq[i] = intbias / netsize;\r\n      bias[i] = 0;\r\n    }\r\n  }\r\n\r\n  /*\r\n    Private Method: unbiasnet\r\n\r\n    unbiases network to give byte values 0..255 and record position i to prepare for sort\r\n  */\r\n  function unbiasnet() {\r\n    for (var i = 0; i < netsize; i++) {\r\n      network[i][0] >>= netbiasshift;\r\n      network[i][1] >>= netbiasshift;\r\n      network[i][2] >>= netbiasshift;\r\n      network[i][3] = i; // record color number\r\n    }\r\n  }\r\n\r\n  /*\r\n    Private Method: altersingle\r\n\r\n    moves neuron *i* towards biased (b,g,r) by factor *alpha*\r\n  */\r\n  function altersingle(alpha, i, b, g, r) {\r\n    network[i][0] -= (alpha * (network[i][0] - b)) / initalpha;\r\n    network[i][1] -= (alpha * (network[i][1] - g)) / initalpha;\r\n    network[i][2] -= (alpha * (network[i][2] - r)) / initalpha;\r\n  }\r\n\r\n  /*\r\n    Private Method: alterneigh\r\n\r\n    moves neurons in *radius* around index *i* towards biased (b,g,r) by factor *alpha*\r\n  */\r\n  function alterneigh(radius, i, b, g, r) {\r\n    var lo = Math.abs(i - radius);\r\n    var hi = Math.min(i + radius, netsize);\r\n\r\n    var j = i + 1;\r\n    var k = i - 1;\r\n    var m = 1;\r\n\r\n    var p, a;\r\n    while ((j < hi) || (k > lo)) {\r\n      a = radpower[m++];\r\n\r\n      if (j < hi) {\r\n        p = network[j++];\r\n        p[0] -= (a * (p[0] - b)) / alpharadbias;\r\n        p[1] -= (a * (p[1] - g)) / alpharadbias;\r\n        p[2] -= (a * (p[2] - r)) / alpharadbias;\r\n      }\r\n\r\n      if (k > lo) {\r\n        p = network[k--];\r\n        p[0] -= (a * (p[0] - b)) / alpharadbias;\r\n        p[1] -= (a * (p[1] - g)) / alpharadbias;\r\n        p[2] -= (a * (p[2] - r)) / alpharadbias;\r\n      }\r\n    }\r\n  }\r\n\r\n  /*\r\n    Private Method: contest\r\n\r\n    searches for biased BGR values\r\n    should be heavily optimized\r\n  */\r\n  function contest(b, g, r) {\r\n    /*\r\n      finds closest neuron (min dist) and updates freq\r\n      finds best neuron (min dist-bias) and returns position\r\n      for frequently chosen neurons, freq[i] is high and bias[i] is negative\r\n      bias[i] = gamma * ((1 / netsize) - freq[i])\r\n    */\r\n\r\n    b = b | 0;\r\n    g = g | 0;\r\n    r = r | 0;\r\n\r\n    var bestd = ~(1 << 31);\r\n    var bestbiasd = bestd;\r\n    var bestpos = -1;\r\n    var bestbiaspos = bestpos;\r\n\r\n    var i, n, dist, biasdist, betafreq;\r\n    for (i = 0; i < netsize; i++) {\r\n      n = network[i];\r\n\r\n      dist = (Math.abs((n[0] | 0) - b) + Math.abs((n[1] | 0) - g) + Math.abs((n[2] | 0) - r)) | 0;\r\n      if (dist < bestd) {\r\n        bestd = dist;\r\n        bestpos = i;\r\n      }\r\n\r\n      biasdist = dist - ((bias[i] | 0) >> (intbiasshift - netbiasshift));\r\n      if (biasdist < bestbiasd) {\r\n        bestbiasd = biasdist;\r\n        bestbiaspos = i;\r\n      }\r\n\r\n      betafreq = (freq[i] >> betashift);\r\n      freq[i] -= betafreq;\r\n      bias[i] += (betafreq << gammashift);\r\n    }\r\n\r\n    freq[bestpos] += beta;\r\n    bias[bestpos] -= betagamma;\r\n\r\n    return bestbiaspos;\r\n  }\r\n\r\n  /*\r\n    Private Method: inxbuild\r\n\r\n    sorts network and builds netindex[0..255]\r\n  */\r\n  function inxbuild() {\r\n    var i, j, p, q, smallpos, smallval, previouscol = 0, startpos = 0;\r\n    for (i = 0; i < netsize; i++) {\r\n      p = network[i];\r\n      smallpos = i;\r\n      smallval = p[1]; // index on g\r\n      // find smallest in i..netsize-1\r\n      for (j = i + 1; j < netsize; j++) {\r\n        q = network[j];\r\n        if (q[1] < smallval) { // index on g\r\n          smallpos = j;\r\n          smallval = q[1]; // index on g\r\n        }\r\n      }\r\n      q = network[smallpos];\r\n      // swap p (i) and q (smallpos) entries\r\n      if (i != smallpos) {\r\n        j = q[0];   q[0] = p[0];   p[0] = j;\r\n        j = q[1];   q[1] = p[1];   p[1] = j;\r\n        j = q[2];   q[2] = p[2];   p[2] = j;\r\n        j = q[3];   q[3] = p[3];   p[3] = j;\r\n      }\r\n      // smallval entry is now in position i\r\n\r\n      if (smallval != previouscol) {\r\n        netindex[previouscol] = (startpos + i) >> 1;\r\n        for (j = previouscol + 1; j < smallval; j++)\r\n          netindex[j] = i;\r\n        previouscol = smallval;\r\n        startpos = i;\r\n      }\r\n    }\r\n    netindex[previouscol] = (startpos + maxnetpos) >> 1;\r\n    for (j = previouscol + 1; j < 256; j++)\r\n      netindex[j] = maxnetpos; // really 256\r\n  }\r\n\r\n  /*\r\n    Private Method: inxsearch\r\n\r\n    searches for BGR values 0..255 and returns a color index\r\n    should be heavily optimized\r\n  */\r\n  function inxsearch(b, g, r) {\r\n\r\n    b = b | 0;\r\n    g = g | 0;\r\n    r = r | 0;\r\n\r\n    var a, p, dist;\r\n\r\n    var bestd = 1000; // biggest possible dist is 256*3\r\n    var best = -1;\r\n\r\n    var i = netindex[g] | 0; // index on g\r\n    var j = i - 1; // start at netindex[g] and work outwards\r\n\r\n    while ((i < netsize) || (j >= 0)) {\r\n      if (i < netsize) {\r\n        p = network[i];\r\n        dist = (p[1] | 0) - g; // inx key\r\n        if (dist >= bestd) i = netsize; // stop iter\r\n        else {\r\n          i++;\r\n          if (dist < 0) dist = -dist;\r\n          a = (p[0] | 0) - b; if (a < 0) a = -a;\r\n          dist += a;\r\n          if (dist < bestd) {\r\n            a = (p[2] | 0) - r; if (a < 0) a = -a;\r\n            dist += a;\r\n            if (dist < bestd) {\r\n              bestd = dist;\r\n              best = p[3] | 0;\r\n            }\r\n          }\r\n        }\r\n      }\r\n      if (j >= 0) {\r\n        p = network[j];\r\n        dist = g - (p[1] | 0); // inx key - reverse dif\r\n        if (dist >= bestd) j = -1; // stop iter\r\n        else {\r\n          j--;\r\n          if (dist < 0) dist = -dist;\r\n          a = (p[0] | 0) - b; if (a < 0) a = -a;\r\n          dist += a;\r\n          if (dist < bestd) {\r\n            a = (p[2] | 0) - r; if (a < 0) a = -a;\r\n            dist += a;\r\n            if (dist < bestd) {\r\n              bestd = dist;\r\n              best = p[3] | 0;\r\n            }\r\n          }\r\n        }\r\n      }\r\n    }\r\n\r\n    return best;\r\n  }\r\n\r\n  /*\r\n    Private Method: learn\r\n\r\n    \"Main Learning Loop\"\r\n  */\r\n  function learn() {\r\n    var i;\r\n\r\n    var lengthcount = pixels.length;\r\n    var alphadec = 30 + ((samplefac - 1) / 3);\r\n    var samplepixels = lengthcount / (3 * samplefac);\r\n    var delta = ~~(samplepixels / ncycles);\r\n    var alpha = initalpha;\r\n    var radius = initradius;\r\n\r\n    var rad = radius >> radiusbiasshift;\r\n\r\n    if (rad <= 1) rad = 0;\r\n    for (i = 0; i < rad; i++)\r\n      radpower[i] = alpha * (((rad * rad - i * i) * radbias) / (rad * rad));\r\n\r\n    var step;\r\n    if (lengthcount < minpicturebytes) {\r\n      samplefac = 1;\r\n      step = 3;\r\n    } else if ((lengthcount % prime1) !== 0) {\r\n      step = 3 * prime1;\r\n    } else if ((lengthcount % prime2) !== 0) {\r\n      step = 3 * prime2;\r\n    } else if ((lengthcount % prime3) !== 0)  {\r\n      step = 3 * prime3;\r\n    } else {\r\n      step = 3 * prime4;\r\n    }\r\n\r\n    var b, g, r, j;\r\n    var pix = 0; // current pixel\r\n\r\n    i = 0;\r\n    while (i < samplepixels) {\r\n      b = (pixels[pix] & 0xff) << netbiasshift;\r\n      g = (pixels[pix + 1] & 0xff) << netbiasshift;\r\n      r = (pixels[pix + 2] & 0xff) << netbiasshift;\r\n\r\n      j = contest(b, g, r);\r\n\r\n      altersingle(alpha, j, b, g, r);\r\n      if (rad !== 0) alterneigh(rad, j, b, g, r); // alter neighbours\r\n\r\n      pix += step;\r\n      if (pix >= lengthcount) pix -= lengthcount;\r\n\r\n      i++;\r\n\r\n      if (delta === 0) delta = 1;\r\n      if (i % delta === 0) {\r\n        alpha -= alpha / alphadec;\r\n        radius -= radius / radiusdec;\r\n        rad = radius >> radiusbiasshift;\r\n\r\n        if (rad <= 1) rad = 0;\r\n        for (j = 0; j < rad; j++)\r\n          radpower[j] = alpha * (((rad * rad - j * j) * radbias) / (rad * rad));\r\n      }\r\n    }\r\n  }\r\n\r\n  /*\r\n    Method: buildColormap\r\n\r\n    1. initializes network\r\n    2. trains it\r\n    3. removes misconceptions\r\n    4. builds colorindex\r\n  */\r\n  function buildColormap() {\r\n    init();\r\n    learn();\r\n    unbiasnet();\r\n    inxbuild();\r\n  }\r\n  this.buildColormap = buildColormap;\r\n\r\n  /*\r\n    Method: getColormap\r\n\r\n    builds colormap from the index\r\n\r\n    returns array in the format:\r\n\r\n    >\r\n    > [r, g, b, r, g, b, r, g, b, ..]\r\n    >\r\n  */\r\n  function getColormap() {\r\n    var map = [];\r\n    var index = [];\r\n\r\n    for (var i = 0; i < netsize; i++)\r\n      index[network[i][3]] = i;\r\n\r\n    var k = 0;\r\n    for (var l = 0; l < netsize; l++) {\r\n      var j = index[l];\r\n      map[k++] = (network[j][0]);\r\n      map[k++] = (network[j][1]);\r\n      map[k++] = (network[j][2]);\r\n    }\r\n    return map;\r\n  }\r\n  this.getColormap = getColormap;\r\n\r\n  /*\r\n    Method: lookupRGB\r\n\r\n    looks for the closest *r*, *g*, *b* color in the map and\r\n    returns its index\r\n  */\r\n  this.lookupRGB = inxsearch;\r\n}\r\n\r\nmodule.exports = NeuQuant;\r\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./src/TypedNeuQuant.js\n ** module id = 2\n ** module chunks = 0\n **/","/*\r\n  LZWEncoder.js\r\n\r\n  Authors\r\n  Kevin Weiner (original Java version - kweiner@fmsware.com)\r\n  Thibault Imbert (AS3 version - bytearray.org)\r\n  Johan Nordberg (JS version - code@johan-nordberg.com)\r\n\r\n  Acknowledgements\r\n  GIFCOMPR.C - GIF Image compression routines\r\n  Lempel-Ziv compression based on 'compress'. GIF modifications by\r\n  David Rowley (mgardi@watdcsu.waterloo.edu)\r\n  GIF Image compression - modified 'compress'\r\n  Based on: compress.c - File compression ala IEEE Computer, June 1984.\r\n  By Authors: Spencer W. Thomas (decvax!harpo!utah-cs!utah-gr!thomas)\r\n  Jim McKie (decvax!mcvax!jim)\r\n  Steve Davies (decvax!vax135!petsd!peora!srd)\r\n  Ken Turkowski (decvax!decwrl!turtlevax!ken)\r\n  James A. Woods (decvax!ihnp4!ames!jaw)\r\n  Joe Orost (decvax!vax135!petsd!joe)\r\n*/\r\n\r\nvar EOF = -1;\r\nvar BITS = 12;\r\nvar HSIZE = 5003; // 80% occupancy\r\nvar masks = [0x0000, 0x0001, 0x0003, 0x0007, 0x000F, 0x001F,\r\n             0x003F, 0x007F, 0x00FF, 0x01FF, 0x03FF, 0x07FF,\r\n             0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF];\r\n\r\nfunction LZWEncoder(width, height, pixels, colorDepth) {\r\n  var initCodeSize = Math.max(2, colorDepth);\r\n\r\n  var accum = new Uint8Array(256);\r\n  var htab = new Int32Array(HSIZE);\r\n  var codetab = new Int32Array(HSIZE);\r\n\r\n  var cur_accum, cur_bits = 0;\r\n  var a_count;\r\n  var free_ent = 0; // first unused entry\r\n  var maxcode;\r\n\r\n  // block compression parameters -- after all codes are used up,\r\n  // and compression rate changes, start over.\r\n  var clear_flg = false;\r\n\r\n  // Algorithm: use open addressing double hashing (no chaining) on the\r\n  // prefix code / next character combination. We do a variant of Knuth's\r\n  // algorithm D (vol. 3, sec. 6.4) along with G. Knott's relatively-prime\r\n  // secondary probe. Here, the modular division first probe is gives way\r\n  // to a faster exclusive-or manipulation. Also do block compression with\r\n  // an adaptive reset, whereby the code table is cleared when the compression\r\n  // ratio decreases, but after the table fills. The variable-length output\r\n  // codes are re-sized at this point, and a special CLEAR code is generated\r\n  // for the decompressor. Late addition: construct the table according to\r\n  // file size for noticeable speed improvement on small files. Please direct\r\n  // questions about this implementation to ames!jaw.\r\n  var g_init_bits, ClearCode, EOFCode;\r\n\r\n  // Add a character to the end of the current packet, and if it is 254\r\n  // characters, flush the packet to disk.\r\n  function char_out(c, outs) {\r\n    accum[a_count++] = c;\r\n    if (a_count >= 254) flush_char(outs);\r\n  }\r\n\r\n  // Clear out the hash table\r\n  // table clear for block compress\r\n  function cl_block(outs) {\r\n    cl_hash(HSIZE);\r\n    free_ent = ClearCode + 2;\r\n    clear_flg = true;\r\n    output(ClearCode, outs);\r\n  }\r\n\r\n  // Reset code table\r\n  function cl_hash(hsize) {\r\n    for (var i = 0; i < hsize; ++i) htab[i] = -1;\r\n  }\r\n\r\n  function compress(init_bits, outs) {\r\n    var fcode, c, i, ent, disp, hsize_reg, hshift;\r\n\r\n    // Set up the globals: g_init_bits - initial number of bits\r\n    g_init_bits = init_bits;\r\n\r\n    // Set up the necessary values\r\n    clear_flg = false;\r\n    n_bits = g_init_bits;\r\n    maxcode = MAXCODE(n_bits);\r\n\r\n    ClearCode = 1 << (init_bits - 1);\r\n    EOFCode = ClearCode + 1;\r\n    free_ent = ClearCode + 2;\r\n\r\n    a_count = 0; // clear packet\r\n\r\n    ent = nextPixel();\r\n\r\n    hshift = 0;\r\n    for (fcode = HSIZE; fcode < 65536; fcode *= 2) ++hshift;\r\n    hshift = 8 - hshift; // set hash code range bound\r\n    hsize_reg = HSIZE;\r\n    cl_hash(hsize_reg); // clear hash table\r\n\r\n    output(ClearCode, outs);\r\n\r\n    outer_loop: while ((c = nextPixel()) != EOF) {\r\n      fcode = (c << BITS) + ent;\r\n      i = (c << hshift) ^ ent; // xor hashing\r\n      if (htab[i] === fcode) {\r\n        ent = codetab[i];\r\n        continue;\r\n      } else if (htab[i] >= 0) { // non-empty slot\r\n        disp = hsize_reg - i; // secondary hash (after G. Knott)\r\n        if (i === 0) disp = 1;\r\n        do {\r\n          if ((i -= disp) < 0) i += hsize_reg;\r\n          if (htab[i] === fcode) {\r\n            ent = codetab[i];\r\n            continue outer_loop;\r\n          }\r\n        } while (htab[i] >= 0);\r\n      }\r\n      output(ent, outs);\r\n      ent = c;\r\n      if (free_ent < 1 << BITS) {\r\n        codetab[i] = free_ent++; // code -> hashtable\r\n        htab[i] = fcode;\r\n      } else {\r\n        cl_block(outs);\r\n      }\r\n    }\r\n\r\n    // Put out the final code.\r\n    output(ent, outs);\r\n    output(EOFCode, outs);\r\n  }\r\n\r\n  function encode(outs) {\r\n    outs.writeByte(initCodeSize); // write \"initial code size\" byte\r\n    remaining = width * height; // reset navigation variables\r\n    curPixel = 0;\r\n    compress(initCodeSize + 1, outs); // compress and write the pixel data\r\n    outs.writeByte(0); // write block terminator\r\n  }\r\n\r\n  // Flush the packet to disk, and reset the accumulator\r\n  function flush_char(outs) {\r\n    if (a_count > 0) {\r\n      outs.writeByte(a_count);\r\n      outs.writeBytes(accum, 0, a_count);\r\n      a_count = 0;\r\n    }\r\n  }\r\n\r\n  function MAXCODE(n_bits) {\r\n    return (1 << n_bits) - 1;\r\n  }\r\n\r\n  // Return the next pixel from the image\r\n  function nextPixel() {\r\n    if (remaining === 0) return EOF;\r\n    --remaining;\r\n    var pix = pixels[curPixel++];\r\n    return pix & 0xff;\r\n  }\r\n\r\n  function output(code, outs) {\r\n    cur_accum &= masks[cur_bits];\r\n\r\n    if (cur_bits > 0) cur_accum |= (code << cur_bits);\r\n    else cur_accum = code;\r\n\r\n    cur_bits += n_bits;\r\n\r\n    while (cur_bits >= 8) {\r\n      char_out((cur_accum & 0xff), outs);\r\n      cur_accum >>= 8;\r\n      cur_bits -= 8;\r\n    }\r\n\r\n    // If the next entry is going to be too big for the code size,\r\n    // then increase it, if possible.\r\n    if (free_ent > maxcode || clear_flg) {\r\n      if (clear_flg) {\r\n        maxcode = MAXCODE(n_bits = g_init_bits);\r\n        clear_flg = false;\r\n      } else {\r\n        ++n_bits;\r\n        if (n_bits == BITS) maxcode = 1 << BITS;\r\n        else maxcode = MAXCODE(n_bits);\r\n      }\r\n    }\r\n\r\n    if (code == EOFCode) {\r\n      // At EOF, write the rest of the buffer.\r\n      while (cur_bits > 0) {\r\n        char_out((cur_accum & 0xff), outs);\r\n        cur_accum >>= 8;\r\n        cur_bits -= 8;\r\n      }\r\n      flush_char(outs);\r\n    }\r\n  }\r\n\r\n  this.encode = encode;\r\n}\r\n\r\nmodule.exports = LZWEncoder;\r\n\n\n\n/*****************\n ** WEBPACK FOOTER\n ** ./src/LZWEncoder.js\n ** module id = 3\n ** module chunks = 0\n **/"],"sourceRoot":""}
\ No newline at end of file
diff --git a/src/js/modules/file/save.js b/src/js/modules/file/save.js
index a7f9c31..6fb0064 100644
--- a/src/js/modules/file/save.js
+++ b/src/js/modules/file/save.js
@@ -5,8 +5,8 @@ import Helper_class from './../../libs/helpers.js';
 import Dialog_class from './../../libs/popup.js';
 import alertify from './../../../../node_modules/alertifyjs/build/alertify.min.js';
 import canvasToBlob from './../../../../node_modules/blueimp-canvas-to-blob/js/canvas-to-blob.min.js';
-import filesaver from './../../../../node_modules/file-saver/FileSaver.min.js';
-import GIF from './../../libs/gifjs/gif.js';
+import filesaver from './../../../../node_modules/file-saver/dist/FileSaver.min.js';
+import GIF from './../../../../node_modules/gif.js.optimized/';
 import CanvasToTIFF from './../../libs/canvastotiff.js';
 
 var instance = null;
@@ -307,7 +307,7 @@ class File_save_class {
 			return;
 		}
 
-		if (type != 'JSON' && type != 'GIF') {
+		if (type != 'JSON') {
 			//create temp canvas
 			var canvas = document.createElement('canvas');
 			var ctx = canvas.getContext("2d");
@@ -593,7 +593,7 @@ class File_save_class {
 				width: config.WIDTH,
 				height: config.HEIGHT,
 				dither: 'FloydSteinberg-serpentine',
-				workerScript: './src/js/libs/gifjs/gif.worker.js',
+				workerScript: './../../../../node_modules/gif.js.optimized/dist/gif.worker.js',
 			};
 			if (config.TRANSPARENCY == true) {
 				gif_settings.transparent = 'rgba(0,0,0,0)';
diff --git a/webpack.config.js b/webpack.config.js
index df66b51..0b65d88 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -3,7 +3,6 @@ var path = require('path');
 
 module.exports = {
 	entry: [
-		'babel-polyfill',
 		'./src/js/main.js',
 	],
 	output: {
@@ -32,12 +31,7 @@ module.exports = {
 			{
 				test: /\.js$/,
 				exclude: /(node_modules|bower_components)/,
-				use: {
-				loader: 'babel-loader',
-					options: {
-					presets: ['env']
-					}
-				}
+				use: ['babel-loader']
 			},
 		]
 	},