diff --git a/bin/pixi.js b/bin/pixi.js index d0a62c2..e2c8d22 100644 --- a/bin/pixi.js +++ b/bin/pixi.js @@ -8948,7 +8948,7 @@ * The DEFAULT Garbage Collection mode for pixi textures is MANUAL * If set to DEFAULT, the renderer will occasianally check textures usage. If they are not used for a specified period of time they will be removed from the GPU. * They will of corse be uploaded again when they are required. This is a silent behind the scenes process that should ensure that the GPU does not get filled up. - * Handy for mobile devices! + * Handy for mobile devices! * This property only affects WebGL * @static * @constant @@ -8985,7 +8985,7 @@ RESOLUTION:1, FILTER_RESOLUTION:1, - + /** * The default render options if none are supplied to {@link PIXI.WebGLRenderer} * or {@link PIXI.CanvasRenderer}. @@ -9039,7 +9039,7 @@ // TODO: maybe change to SPRITE.BATCH_SIZE: 2000 // TODO: maybe add PARTICLE.BATCH_SIZE: 15000 SPRITE_BATCH_SIZE: 4096, //nice balance between mobile and desktop machines - SPRITE_MAX_TEXTURES: require('./utils/maxRecommendedTextures')(32)//this is the MAXIMUM - various gpus will have there own limits. + SPRITE_MAX_TEXTURES: require('./utils/maxRecommendedTextures')(16)//this is the MAXIMUM - various gpus will have there own limits. }; module.exports = CONST; @@ -18902,8 +18902,6 @@ // create a couple of buffers this.indexBuffer = glCore.GLBuffer.createIndexBuffer(gl, this.indices, gl.STATIC_DRAW); - - for (var i = 0; i < this.vaoMax; i++) { this.vertexBuffers[i] = glCore.GLBuffer.createVertexBuffer(gl, null, gl.STREAM_DRAW); // build the vao object that will render.. @@ -18922,7 +18920,7 @@ SpriteRenderer.prototype.onPrerender = function () { this.vertexCount = 0; -} +}; /** * Renders the sprite object. @@ -19190,7 +19188,7 @@ var shader = new Shader(gl, vertexSrc, fragmentSrc); var sampleValues = []; - for (var i = 0; i < maxTextures; i++) + for (var i = 0; i < maxTextures; i++) { sampleValues[i] = i; } @@ -19207,8 +19205,8 @@ src += '\n'; src += '\n'; - - for (var i = 0; i < maxTextures; i++) + + for (var i = 0; i < maxTextures; i++) { if(i > 0) { diff --git a/bin/pixi.js b/bin/pixi.js index d0a62c2..e2c8d22 100644 --- a/bin/pixi.js +++ b/bin/pixi.js @@ -8948,7 +8948,7 @@ * The DEFAULT Garbage Collection mode for pixi textures is MANUAL * If set to DEFAULT, the renderer will occasianally check textures usage. If they are not used for a specified period of time they will be removed from the GPU. * They will of corse be uploaded again when they are required. This is a silent behind the scenes process that should ensure that the GPU does not get filled up. - * Handy for mobile devices! + * Handy for mobile devices! * This property only affects WebGL * @static * @constant @@ -8985,7 +8985,7 @@ RESOLUTION:1, FILTER_RESOLUTION:1, - + /** * The default render options if none are supplied to {@link PIXI.WebGLRenderer} * or {@link PIXI.CanvasRenderer}. @@ -9039,7 +9039,7 @@ // TODO: maybe change to SPRITE.BATCH_SIZE: 2000 // TODO: maybe add PARTICLE.BATCH_SIZE: 15000 SPRITE_BATCH_SIZE: 4096, //nice balance between mobile and desktop machines - SPRITE_MAX_TEXTURES: require('./utils/maxRecommendedTextures')(32)//this is the MAXIMUM - various gpus will have there own limits. + SPRITE_MAX_TEXTURES: require('./utils/maxRecommendedTextures')(16)//this is the MAXIMUM - various gpus will have there own limits. }; module.exports = CONST; @@ -18902,8 +18902,6 @@ // create a couple of buffers this.indexBuffer = glCore.GLBuffer.createIndexBuffer(gl, this.indices, gl.STATIC_DRAW); - - for (var i = 0; i < this.vaoMax; i++) { this.vertexBuffers[i] = glCore.GLBuffer.createVertexBuffer(gl, null, gl.STREAM_DRAW); // build the vao object that will render.. @@ -18922,7 +18920,7 @@ SpriteRenderer.prototype.onPrerender = function () { this.vertexCount = 0; -} +}; /** * Renders the sprite object. @@ -19190,7 +19188,7 @@ var shader = new Shader(gl, vertexSrc, fragmentSrc); var sampleValues = []; - for (var i = 0; i < maxTextures; i++) + for (var i = 0; i < maxTextures; i++) { sampleValues[i] = i; } @@ -19207,8 +19205,8 @@ src += '\n'; src += '\n'; - - for (var i = 0; i < maxTextures; i++) + + for (var i = 0; i < maxTextures; i++) { if(i > 0) { diff --git a/bin/pixi.js.map b/bin/pixi.js.map index 899ec0f..44aabdf 100644 --- a/bin/pixi.js.map +++ b/bin/pixi.js.map @@ -1 +1 @@ -{"version":3,"names":[],"mappings":"","sources":["pixi.js"],"sourcesContent":["(function(f){if(typeof exports===\"object\"&&typeof module!==\"undefined\"){module.exports=f()}else if(typeof define===\"function\"&&define.amd){define([],f)}else{var g;if(typeof window!==\"undefined\"){g=window}else if(typeof global!==\"undefined\"){g=global}else if(typeof self!==\"undefined\"){g=self}else{g=this}g.PIXI = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o= data.byteLength)\n\t{\n\t\tgl.bufferSubData(this.type, offset, data);\n\t}\n\telse\n\t{\n\t\tgl.bufferData(this.type, data, this.drawType);\n\t}\n\n\tthis.data = data;\n}\n/**\n * Binds the buffer\n *\n */\nBuffer.prototype.bind = function()\n{\n\tvar gl = this.gl;\n\tgl.bindBuffer(this.type, this.buffer);\n}\n\nBuffer.createVertexBuffer = function(gl, data, drawType)\n{\n\treturn new Buffer(gl, gl.ARRAY_BUFFER, data, drawType);\n}\n\nBuffer.createIndexBuffer = function(gl, data, drawType)\n{\n\treturn new Buffer(gl, gl.ELEMENT_ARRAY_BUFFER, data, drawType);\n}\n\nBuffer.create = function(gl, type, data, drawType)\n{\n\treturn new Buffer(gl, type, drawType);\n}\n\n/**\n * Destroys the buffer\n *\n */\nBuffer.prototype.destroy = function(){\n\tthis.gl.deleteBuffer(this.buffer);\n}\n\nmodule.exports = Buffer;\n\n},{}],3:[function(require,module,exports){\n\nvar Texture = require('./GLTexture');\n\n/**\n * Helper class to create a webGL Framebuffer\n *\n * @class\n * @memberof pixi.gl\n * @param gl {WebGLRenderingContext} The current WebGL rendering context\n * @param width {Number} the width of the drawing area of the frame buffer\n * @param height {Number} the height of the drawing area of the frame buffer\n */\nvar Framebuffer = function(gl, width, height)\n{\n\t/**\n * The current WebGL rendering context\n *\n * @member {WebGLRenderingContext}\n */\n\tthis.gl = gl;\n\n\t/**\n * The frame buffer\n *\n * @member {WebGLFramebuffer}\n */\n\tthis.framebuffer = gl.createFramebuffer();\n\n\t/**\n * The stencil buffer\n *\n * @member {WebGLRenderbuffer}\n */\n\tthis.stencil = null;\n\n\t/**\n * The stencil buffer\n *\n * @member {GLTexture}\n */\n\tthis.texture = null;\n\n\t/**\n * The width of the drawing area of the buffer\n *\n * @member {Number}\n */\n\tthis.width = width || 100;\n\t/**\n * The height of the drawing area of the buffer\n *\n * @member {Number}\n */\n\tthis.height = height || 100;\n}\n\n/**\n * Adds a texture to the frame buffer\n * @param texture {GLTexture}\n */\nFramebuffer.prototype.enableTexture = function(texture)\n{\n\tvar gl = this.gl;\n\n\tthis.texture = texture || new Texture(gl);\n\n\tthis.texture.bind();\n\n\t//gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, this.width, this.height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);\n\n\tthis.bind();\n\n\tgl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, this.texture.texture, 0);\n}\n\n/**\n * Initialises the stencil buffer\n * @mat maybe you can come up with a better explaination\n */\nFramebuffer.prototype.enableStencil = function()\n{\n\tif(this.stencil)return;\n\n\tvar gl = this.gl;\n\n\tthis.stencil = gl.createRenderbuffer();\n\n gl.bindRenderbuffer(gl.RENDERBUFFER, this.stencil);\n\n // TODO.. this is depth AND stencil?\n gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_STENCIL_ATTACHMENT, gl.RENDERBUFFER, this.stencil);\n gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_STENCIL, this.width , this.height );\n}\n\n/**\n * Erases the drawing area and fills it with a colour\n * @param r {Number} the red value of the clearing colour\n * @param g {Number} the green value of the clearing colour\n * @param b {Number} the blue value of the clearing colour\n * @param a {Number} the alpha value of the clearing colour\n */\nFramebuffer.prototype.clear = function( r, g, b, a )\n{\n\tthis.bind();\n\n\tvar gl = this.gl;\n\n gl.clearColor(r, g, b, a);\n gl.clear(gl.COLOR_BUFFER_BIT);\n}\n\n/**\n * Binds the frame buffer to the WebGL context\n */\nFramebuffer.prototype.bind = function()\n{\n\tvar gl = this.gl;\n\n\tif(this.texture)\n\t{\n\t\tthis.texture.unbind();\n\t}\n\n\tgl.bindFramebuffer(gl.FRAMEBUFFER, this.framebuffer );\n}\n\n/**\n * Unbinds the frame buffer to the WebGL context\n */\nFramebuffer.prototype.unbind = function()\n{\n\tvar gl = this.gl;\n\tgl.bindFramebuffer(gl.FRAMEBUFFER, null );\t\n}\n/**\n * Resizes the drawing area of the buffer to the given width and height\n * @param width {Number} the new width\n * @param height {Number} the new height\n */\nFramebuffer.prototype.resize = function(width, height)\n{\n\tvar gl = this.gl;\n\n\tthis.width = width;\n\tthis.height = height;\n\n\tif ( this.texture )\n {\n \tthis.texture.uploadData(null, width, height);\n\t}\n\n\tif ( this.stencil )\n {\n // update the stencil buffer width and height\n gl.bindRenderbuffer(gl.RENDERBUFFER, this.stencil);\n gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_STENCIL, width, height);\n }\n}\n\n/**\n * Destroys this buffer\n */\nFramebuffer.prototype.destroy = function()\n{\n\tvar gl = this.gl;\n\n\t//TODO\n\tif(this.texture)\n\t{\n\t\tthis.texture.destroy();\n\t}\n\n\tgl.deleteFramebuffer(this.framebuffer);\n\n\tthis.gl = null;\n\n\tthis.stencil = null;\n\tthis.texture = null;\n}\n\n/**\n * Creates a frame buffer with a texture containing the given data\n * @mat can you confirm ? :)\n * @static\n * @param gl {WebGLRenderingContext} The current WebGL rendering context\n * @param width {Number} the width of the drawing area of the frame buffer\n * @param height {Number} the height of the drawing area of the frame buffer\n * @param data {ArrayBuffer| SharedArrayBuffer|ArrayBufferView} an array of data\n */\nFramebuffer.createRGBA = function(gl, width, height, data)\n{\n\tvar texture = Texture.fromData(gl, null, width, height);\n\ttexture.enableNearestScaling();\n texture.enableWrapClamp();\n\n //now create the framebuffer object and attach the texture to it.\n var fbo = new Framebuffer(gl, width, height);\n fbo.enableTexture(texture);\n\n fbo.unbind();\n\n return fbo;\n}\n\n/**\n * Creates a frame buffer with a texture containing the given data\n * @mat not sure what the difference is with the method above ?\n * @static\n * @param gl {WebGLRenderingContext} The current WebGL rendering context\n * @param width {Number} the width of the drawing area of the frame buffer\n * @param height {Number} the height of the drawing area of the frame buffer\n * @param data {ArrayBuffer| SharedArrayBuffer|ArrayBufferView} an array of data\n */\nFramebuffer.createFloat32 = function(gl, width, height, data)\n{\n\t// create a new texture..\n var texture = new Texture.fromData(gl, data, width, height);\n texture.enableNearestScaling();\n texture.enableWrapClamp();\n\n //now create the framebuffer object and attach the texture to it.\n var fbo = new Framebuffer(gl, width, height);\n fbo.enableTexture(texture)\n\n fbo.unbind();\n\n return fbo;\n}\n\nmodule.exports = Framebuffer;\n\n},{\"./GLTexture\":5}],4:[function(require,module,exports){\n\nvar compileProgram = require('./shader/compileProgram'),\n\textractAttributes = require('./shader/extractAttributes'),\n\textractUniforms = require('./shader/extractUniforms'),\n\tgenerateUniformAccessObject = require('./shader/generateUniformAccessObject');\n\n/**\n * Helper class to create a webGL Shader\n *\n * @class\n * @memberof pixi.gl\n * @param gl {WebGLRenderingContext}\n * @param vertexSrc {string|string[]} The vertex shader source as an array of strings.\n * @param fragmentSrc {string|string[]} The fragment shader source as an array of strings.\n */\nvar Shader = function(gl, vertexSrc, fragmentSrc)\n{\n\t/**\n\t * The current WebGL rendering context\n\t *\n\t * @member {WebGLRenderingContext}\n\t */\n\tthis.gl = gl;\n\n\t/**\n\t * The shader program\n\t *\n\t * @member {WebGLProgram}\n\t */\n\t// First compile the program..\n\tthis.program = compileProgram(gl, vertexSrc, fragmentSrc);\n\n\n\t/**\n\t * The attributes of the shader as an object containing the following properties\n\t * {\n\t * \ttype,\n\t * \tsize,\n\t * \tlocation,\n\t * \tpointer\n\t * }\n\t * @member {Object}\n\t */\n\t// next extract the attributes\n\tthis.attributes = extractAttributes(gl, this.program);\n\n var uniformData = extractUniforms(gl, this.program);\n\n\t/**\n\t * The uniforms of the shader as an object containing the following properties\n\t * {\n\t * \tgl,\n\t * \tdata\n\t * }\n\t * @member {Object}\n\t */\n this.uniforms = generateUniformAccessObject( gl, uniformData );\n}\n/**\n * Uses this shader\n */\nShader.prototype.bind = function()\n{\n\tthis.gl.useProgram(this.program);\n}\n\n/**\n * Destroys this shader\n * TODO\n */\nShader.prototype.destroy = function()\n{\n\tvar gl = this.gl;\n}\n\nmodule.exports = Shader;\n\n},{\"./shader/compileProgram\":9,\"./shader/extractAttributes\":11,\"./shader/extractUniforms\":12,\"./shader/generateUniformAccessObject\":13}],5:[function(require,module,exports){\n\n/**\n * Helper class to create a WebGL Texture\n *\n * @class\n * @memberof pixi.gl\n * @param gl {WebGLRenderingContext} The current WebGL context\n * @param width {number} the width of the texture\n * @param height {number} the height of the texture\n * @param format {number} the pixel format of the texture. defaults to gl.RGBA\n * @param type {number} the gl type of the texture. defaults to gl.UNSIGNED_BYTE\n */\nvar Texture = function(gl, width, height, format, type)\n{\n\t/**\n\t * The current WebGL rendering context\n\t *\n\t * @member {WebGLRenderingContext}\n\t */\n\tthis.gl = gl;\n\n\n\t/**\n\t * The WebGL texture\n\t *\n\t * @member {WebGLTexture}\n\t */\n\tthis.texture = gl.createTexture();\n\n\t/**\n\t * If mipmapping was used for this texture, enable and disable with enableMipmap()\n\t *\n\t * @member {Boolean}\n\t */\n\t// some settings..\n\tthis.mipmap = false;\n\n\n\t/**\n\t * Set to true to enable pre-multiplied alpha\n\t *\n\t * @member {Boolean}\n\t */\n\tthis.premultiplyAlpha = false;\n\n\t/**\n\t * The width of texture\n\t *\n\t * @member {Number}\n\t */\n\tthis.width = width || 0;\n\t/**\n\t * The height of texture\n\t *\n\t * @member {Number}\n\t */\n\tthis.height = height || 0;\n\n\t/**\n\t * The pixel format of the texture. defaults to gl.RGBA\n\t *\n\t * @member {Number}\n\t */\n\tthis.format = format || gl.RGBA;\n\n\t/**\n\t * The gl type of the texture. defaults to gl.UNSIGNED_BYTE\n\t *\n\t * @member {Number}\n\t */\n\tthis.type = type || gl.UNSIGNED_BYTE;\n\n\n}\n\n/**\n * Uploads this texture to the GPU\n * @param source {HTMLImageElement|ImageData|HTMLVideoElement} the source image of the texture\n */\nTexture.prototype.upload = function(source)\n{\n\tthis.bind();\n\n\tvar gl = this.gl;\n\n\t// if the source is a video, we need to use the videoWidth / videoHeight properties as width / height will be incorrect.\n\tthis.width = source.videoWidth || source.width;\n\tthis.height = source.videoHeight || source.height;\n\n\tgl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, this.premultiplyAlpha);\n gl.texImage2D(gl.TEXTURE_2D, 0, this.format, this.format, this.type, source);\n}\n\nvar FLOATING_POINT_AVAILABLE = false;\n\n/**\n * Use a data source and uploads this texture to the GPU\n * @param data {TypedArray} the data to upload to the texture\n * @param width {number} the new width of the texture\n * @param height {number} the new height of the texture\n */\nTexture.prototype.uploadData = function(data, width, height)\n{\n\tthis.bind();\n\n\tvar gl = this.gl;\n\n\tthis.width = width || this.width;\n\tthis.height = height || this.height;\n\n\tif(data instanceof Float32Array)\n\t{\n\t\tif(!FLOATING_POINT_AVAILABLE)\n\t\t{\n\t\t\tvar ext = gl.getExtension(\"OES_texture_float\");\n\n\t\t\tif(ext)\n\t\t\t{\n\t\t\t\tFLOATING_POINT_AVAILABLE = true;\n\t\t\t}\n\t\t\telse\n\t\t\t{\n\t\t\t\tthrow new Error('floating point textures not available');\n\t\t\t}\n\t\t}\n\n\t\tthis.type = gl.FLOAT;\n\t}\n\telse\n\t{\n\t\t// TODO support for other types\n\t\tthis.type = gl.UNSIGNED_BYTE;\n\t}\n\n\n\n\t// what type of data?\n\tgl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, this.premultiplyAlpha);\n\tgl.texImage2D(gl.TEXTURE_2D, 0, this.format, this.width, this.height, 0, this.format, this.type, data || null);\n\n}\n\n/**\n * Binds the texture\n * @param location {@mat}\n */\nTexture.prototype.bind = function(location)\n{\n\tvar gl = this.gl;\n\n\tif(location !== undefined)\n\t{\n\t\tgl.activeTexture(gl.TEXTURE0 + location);\n\t}\n\n\tgl.bindTexture(gl.TEXTURE_2D, this.texture);\n}\n\n/**\n * Unbinds the texture\n */\nTexture.prototype.unbind = function()\n{\n\tvar gl = this.gl;\n\tgl.bindTexture(gl.TEXTURE_2D, null);\n}\n\n/**\n * @mat\n * @param linear {Boolean} if we want to use linear filtering or nearest neighbour interpolation\n */\nTexture.prototype.minFilter = function( linear )\n{\n\tvar gl = this.gl;\n\n\tthis.bind();\n\n\tif(this.mipmap)\n\t{\n\t\tgl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, linear ? gl.LINEAR_MIPMAP_LINEAR : gl.NEAREST_MIPMAP_NEAREST);\n\t}\n\telse\n\t{\n\t\tgl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, linear ? gl.LINEAR : gl.NEAREST);\n\t}\n}\n\n/**\n * @mat\n * @param linear {Boolean} if we want to use linear filtering or nearest neighbour interpolation\n */\nTexture.prototype.magFilter = function( linear )\n{\n\tvar gl = this.gl;\n\n\tthis.bind();\n\n\tgl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, linear ? gl.LINEAR : gl.NEAREST);\n}\n\n/**\n * Enables mipmapping\n */\nTexture.prototype.enableMipmap = function()\n{\n\tvar gl = this.gl;\n\n\tthis.bind();\n\n\tthis.mipmap = true;\n\n\tgl.generateMipmap(gl.TEXTURE_2D);\n}\n\n/**\n * Enables linear filtering\n */\nTexture.prototype.enableLinearScaling = function()\n{\n\tthis.minFilter(true);\n\tthis.magFilter(true);\n}\n\n/**\n * Enables nearest neighbour interpolation\n */\nTexture.prototype.enableNearestScaling = function()\n{\n\tthis.minFilter(false);\n\tthis.magFilter(false);\n}\n\n/**\n * Enables clamping on the texture so WebGL will not repeat it\n */\nTexture.prototype.enableWrapClamp = function()\n{\n\tvar gl = this.gl;\n\n\tthis.bind();\n\n\tgl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);\n gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);\n}\n\n/**\n * Enable tiling on the texture\n */\nTexture.prototype.enableWrapRepeat = function()\n{\n\tvar gl = this.gl;\n\n\tthis.bind();\n\n\tgl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT);\n gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT);\n}\n\n/**\n * @mat\n */\nTexture.prototype.enableWrapMirrorRepeat = function()\n{\n\tvar gl = this.gl;\n\n\tthis.bind();\n\n\tgl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.MIRRORED_REPEAT);\n gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.MIRRORED_REPEAT);\n}\n\n\n/**\n * Destroys this texture\n */\nTexture.prototype.destroy = function()\n{\n\tvar gl = this.gl;\n\t//TODO\n\tgl.deleteTexture(this.texture);\n}\n\n/**\n * @static\n * @param gl {WebGLRenderingContext} The current WebGL context\n * @param source {HTMLImageElement|ImageData} the source image of the texture\n * @param premultiplyAlpha {Boolean} If we want to use pre-multiplied alpha\n */\nTexture.fromSource = function(gl, source, premultiplyAlpha)\n{\n\tvar texture = new Texture(gl);\n\ttexture.premultiplyAlpha = premultiplyAlpha || false;\n\ttexture.upload(source);\n\n\treturn texture;\n}\n\n/**\n * @static\n * @param gl {WebGLRenderingContext} The current WebGL context\n * @param data {TypedArray} the data to upload to the texture\n * @param width {number} the new width of the texture\n * @param height {number} the new height of the texture\n */\nTexture.fromData = function(gl, data, width, height)\n{\n\t//console.log(data, width, height);\n\tvar texture = new Texture(gl);\n\ttexture.uploadData(data, width, height);\n\n\treturn texture;\n}\n\n\nmodule.exports = Texture;\n\n},{}],6:[function(require,module,exports){\n\n// state object//\nvar setVertexAttribArrays = require( './setVertexAttribArrays' );\n\n/**\n * Helper class to work with WebGL VertexArrayObjects (vaos)\n * Only works if WebGL extensions are enabled (they usually are)\n *\n * @class\n * @memberof pixi.gl\n * @param gl {WebGLRenderingContext} The current WebGL rendering context\n */\nfunction VertexArrayObject(gl, state)\n{\n\n\tthis.nativeVaoExtension = (\n gl.getExtension('OES_vertex_array_object') ||\n gl.getExtension('MOZ_OES_vertex_array_object') ||\n gl.getExtension('WEBKIT_OES_vertex_array_object')\n );\n\n\tthis.nativeState = state;\n\n\tif(this.nativeVaoExtension)\n\t{\n\t\tthis.nativeVao = this.nativeVaoExtension.createVertexArrayOES();\n\t\t\n\t\tvar maxAttribs = gl.getParameter(gl.MAX_VERTEX_ATTRIBS);\n\t\t\n\t\t// VAO - overwrite the state..\n\t\tthis.nativeState = {tempAttribState:new Array(maxAttribs)\n\t\t\t\t\t\t\t,attribState:new Array(maxAttribs)};\n\t}\n\n\t/**\n\t * The current WebGL rendering context\n\t *\n\t * @member {WebGLRenderingContext}\n\t */\n\tthis.gl = gl;\n\n\t/**\n\t * An array of attributes ? @mat\n\t *\n\t * @member {Array}\n\t */\n\tthis.attributes = [];\n\n\t/**\n\t * @mat\n\t *\n\t * @member {Array}\n\t */\n\tthis.indexBuffer = null;\n\n\t/**\n\t * A boolean flag\n\t *\n\t * @member {Boolean}\n\t */\n\tthis.dirty = false;\n}\n\nVertexArrayObject.prototype.constructor = VertexArrayObject;\nmodule.exports = VertexArrayObject;\n\n\n/**\n * Binds the buffer\n */\nVertexArrayObject.prototype.bind = function()\n{\n\tif(this.nativeVao)\n\t{\n\t\tthis.nativeVaoExtension.bindVertexArrayOES(this.nativeVao);\n\n\t\tif(this.dirty)\n\t\t{\n\t\t\tthis.dirty = false;\n\t\t\tthis.activate();\n\t\t}\n\t}\n\telse\n\t{\n\t\t\n\t\tthis.activate();\n\t}\n\n\treturn this;\n}\n\n/**\n * Unbinds the buffer\n */\nVertexArrayObject.prototype.unbind = function()\n{\n\tif(this.nativeVao)\n\t{\n\t\tthis.nativeVaoExtension.bindVertexArrayOES(null);\n\t}\n\n\treturn this;\n}\n\n/**\n * Uses this vao\n */\nVertexArrayObject.prototype.activate = function()\n{\n\t\n\tvar gl = this.gl;\n\tvar lastBuffer = null;\n\n\tfor (var i = 0; i < this.attributes.length; i++)\n\t{\n\t\tvar attrib = this.attributes[i];\n\n\t\tif(lastBuffer !== attrib.buffer)\n\t\t{\n\t\t\tattrib.buffer.bind();\n\t\t\tlastBuffer = attrib.buffer;\n\t\t}\n\n\t\t//attrib.attribute.pointer(attrib.type, attrib.normalized, attrib.stride, attrib.start);\n\t\tgl.vertexAttribPointer(attrib.attribute.location,\n\t\t\t\t\t\t\t attrib.attribute.size, attrib.type || gl.FLOAT,\n\t\t\t\t\t\t\t attrib.normalized || false,\n\t\t\t\t\t\t\t attrib.stride || 0,\n\t\t\t\t\t\t\t attrib.start || 0);\n\n\n\t};\n\n\tsetVertexAttribArrays(gl, this.attributes, this.nativeState);\n\t\n\tthis.indexBuffer.bind();\n\n\treturn this;\n}\n\n/**\n *\n * @param buffer {WebGLBuffer}\n * @param attribute {[type]}\n * @param type {[type]}\n * @param normalized {[type]}\n * @param stride {Number}\n * @param start {Number}\n */\nVertexArrayObject.prototype.addAttribute = function(buffer, attribute, type, normalized, stride, start)\n{\n this.attributes.push({\n \tbuffer: \tbuffer,\n \tattribute: \tattribute,\n\n \tlocation: \tattribute.location,\n\t \ttype: \t\ttype || this.gl.FLOAT,\n\t \tnormalized: normalized || false,\n\t \tstride: \tstride || 0,\n\t \tstart: \t\tstart || 0\n\t})\n\n\tthis.dirty = true;\n\n\treturn this;\n}\n\n/**\n *\n * @param buffer {WebGLBuffer}\n * @param options {Object}\n */\nVertexArrayObject.prototype.addIndex = function(buffer, options)\n{\n this.indexBuffer = buffer;\n\n this.dirty = true;\n\n return this;\n}\n\n/**\n * Unbinds this vao and disables it\n */\nVertexArrayObject.prototype.clear = function()\n{\n\tvar gl = this.gl;\n\n\t// TODO - should this function unbind after clear?\n\t// for now, no but lets see what happens in the real world!\n\tif(this.nativeVao)\n\t{\n\t\tthis.nativeVaoExtension.bindVertexArrayOES(this.nativeVao);\n\t}\n\n\tthis.attributes.length = 0;\n\tthis.indexBuffer = null;\n\n\treturn this;\n}\n\n/**\n * @mat\n * @param type {Number}\n * @param size {Number}\n * @param start {Number}\n */\nVertexArrayObject.prototype.draw = function(type, size, start)\n{\n\tvar gl = this.gl;\n\tgl.drawElements(type, size, gl.UNSIGNED_SHORT, start || 0);\n\n\treturn this;\n}\n\n},{\"./setVertexAttribArrays\":8}],7:[function(require,module,exports){\n\n/**\n * Helper class to create a webGL Context\n *\n * @class\n * @memberof pixi.gl\n * @param canvas {HTMLCanvasElement} the canvas element that we will get the context from\n * @param options {Object} An options object that gets passed in to the canvas element containing the context attributes,\n * see https://developer.mozilla.org/en/docs/Web/API/HTMLCanvasElement/getContext for the options available\n * @return {WebGLRenderingContext} the WebGL context\n */\nvar createContext = function(canvas, options)\n{\n var gl = canvas.getContext('webgl', options) || \n \t canvas.getContext('experimental-webgl', options);\n\n if (!gl)\n {\n // fail, not able to get a context\n throw new Error('This browser does not support webGL. Try using the canvas renderer');\n }\n\n return gl;\n}\n\nmodule.exports = createContext;\n\n},{}],8:[function(require,module,exports){\nvar GL_MAP = {};\n\n/**\n * @mat\n * @param gl {WebGLRenderingContext} The current WebGL context\n * @param attribs {[type]}\n */\nvar setVertexAttribArrays = function (gl, attribs, state)\n{\n\n if(state)\n {\n\n var i,\n tempAttribState = state.tempAttribState,\n attribState = state.attribState;\n\n for (i = 0; i < tempAttribState.length; i++)\n {\n tempAttribState[i] = false;\n }\n\n // set the new attribs\n for (i in attribs)\n {\n tempAttribState[attribs[i].attribute.location] = true;\n }\n\n for (i = 0; i < attribState.length; i++)\n {\n if (attribState[i] !== tempAttribState[i])\n {\n attribState[i] = tempAttribState[i];\n\n if (state.attribState[i])\n {\n gl.enableVertexAttribArray(i);\n }\n else\n {\n gl.disableVertexAttribArray(i);\n }\n }\n }\n\n }\n else\n {\n for (var i = 0; i < attribs.length; i++)\n {\n var attrib = attribs[i];\n gl.enableVertexAttribArray(attrib.attribute.location);\n }\n }\n};\n\nmodule.exports = setVertexAttribArrays;\n\n},{}],9:[function(require,module,exports){\n\n/**\n *\n * @param gl {WebGLRenderingContext} The current WebGL context {WebGLProgram}\n * @param vertexSrc {string|string[]} The vertex shader source as an array of strings.\n * @param fragmentSrc {string|string[]} The fragment shader source as an array of strings.\n * @return {WebGLProgram} the shader program\n */\ncompileProgram = function(gl, vertexSrc, fragmentSrc)\n{\n var glVertShader = compileShader(gl, gl.VERTEX_SHADER, vertexSrc);\n var glFragShader = compileShader(gl, gl.FRAGMENT_SHADER, fragmentSrc);\n\n var program = gl.createProgram();\n\n gl.attachShader(program, glVertShader);\n gl.attachShader(program, glFragShader);\n gl.linkProgram(program);\n\n // if linking fails, then log and cleanup\n if (!gl.getProgramParameter(program, gl.LINK_STATUS))\n {\n console.error('Pixi.js Error: Could not initialize shader.');\n console.error('gl.VALIDATE_STATUS', gl.getProgramParameter(program, gl.VALIDATE_STATUS));\n console.error('gl.getError()', gl.getError());\n\n // if there is a program info log, log it\n if (gl.getProgramInfoLog(program) !== '')\n {\n console.warn('Pixi.js Warning: gl.getProgramInfoLog()', gl.getProgramInfoLog(program));\n }\n\n gl.deleteProgram(program);\n program = null;\n }\n\n // clean up some shaders\n gl.deleteShader(glVertShader);\n gl.deleteShader(glFragShader);\n\n return program;\n}\n\n/**\n *\n * @param gl {WebGLRenderingContext} The current WebGL context {WebGLProgram}\n * @param type {Number} the type, can be either VERTEX_SHADER or FRAGMENT_SHADER\n * @param vertexSrc {string|string[]} The vertex shader source as an array of strings.\n * @return {WebGLShader} the shader\n */\nvar compileShader = function (gl, type, src)\n{\n var shader = gl.createShader(type);\n\n gl.shaderSource(shader, src);\n gl.compileShader(shader);\n\n if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS))\n {\n console.log(gl.getShaderInfoLog(shader));\n return null;\n }\n\n return shader;\n};\n\nmodule.exports = compileProgram;\n\n},{}],10:[function(require,module,exports){\n\n\nvar defaultValue = function(type, size) \n{\n switch (type)\n {\n case 'float':\n return 0;\n\n case 'vec2': \n return new Float32Array(2 * size);\n\n case 'vec3':\n return new Float32Array(3 * size);\n\n case 'vec4': \n return new Float32Array(4 * size);\n \n case 'int':\n case 'sampler2D':\n return 0;\n\n case 'ivec2': \n return new Int32Array(2 * size);\n\n case 'ivec3':\n return new Int32Array(3 * size);\n\n case 'ivec4': \n return new Int32Array(4 * size);\n\n case 'bool': \n return false;\n\n case 'bvec2':\n\n return booleanArray( 2 * size);\n\n case 'bvec3':\n return booleanArray(3 * size);\n\n case 'bvec4':\n return booleanArray(4 * size);\n\n case 'mat2':\n return new Float32Array([1, 0\n ,0, 1]);\n\n case 'mat3': \n return new Float32Array([1, 0, 0\n ,0, 1, 0\n ,0, 0, 1]);\n\n case 'mat4':\n return new Float32Array([1, 0, 0, 0\n ,0, 1, 0, 0\n ,0, 0, 1, 0\n ,0, 0, 0, 1]);\n }\n}\n\nvar booleanArray = function(size)\n{\n var array = new Array(size);\n\n for (var i = 0; i < array.length; i++) \n {\n array[i] = false;\n };\n\n return array;\n}\n\nmodule.exports = defaultValue;\n\n},{}],11:[function(require,module,exports){\n\nvar mapType = require('./mapType');\nvar mapSize = require('./mapSize');\n\n/**\n * Extracts the attributes\n * @param gl {WebGLRenderingContext} The current WebGL rendering context\n * @param program {WebGLProgram} The shader program to get the attributes from\n * @return attributes {Object}\n */\nvar extractAttributes = function(gl, program)\n{\n var attributes = {};\n\n var totalAttributes = gl.getProgramParameter(program, gl.ACTIVE_ATTRIBUTES)\n\n for (var i = 0; i < totalAttributes; i++)\n {\n var attribData = gl.getActiveAttrib(program, i);\n var type = mapType(gl, attribData.type);\n\n attributes[attribData.name] = {\n type:type,\n size:mapSize(type),\n location:gl.getAttribLocation(program, attribData.name),\n //TODO - make an attribute object\n pointer:function(type, normalized, stride, start){\n\n // console.log(this.location)\n gl.vertexAttribPointer(this.location,this.size, type || gl.FLOAT, normalized || false, stride || 0, start || 0);\n\n }\n }\n };\n\n return attributes;\n}\n\nmodule.exports = extractAttributes;\n\n},{\"./mapSize\":14,\"./mapType\":15}],12:[function(require,module,exports){\nvar mapType = require('./mapType');\nvar defaultValue = require('./defaultValue');\n\n/**\n * Extracts the uniforms\n * @param gl {WebGLRenderingContext} The current WebGL rendering context\n * @param program {WebGLProgram} The shader program to get the uniforms from\n * @return uniforms {Object}\n */\nvar extractUniforms = function(gl, program)\n{\n\tvar uniforms = {};\n\n var totalUniforms = gl.getProgramParameter(program, gl.ACTIVE_UNIFORMS)\n\n for (var i = 0; i < totalUniforms; i++)\n {\n \tvar uniformData = gl.getActiveUniform(program, i);\n \tvar name = uniformData.name.replace(/\\[.*?\\]/, \"\");\n var type = mapType(gl, uniformData.type );\n\n \tuniforms[name] = {\n \t\ttype:type,\n \t\tsize:uniformData.size,\n \t\tlocation:gl.getUniformLocation(program, name),\n \t\tvalue:defaultValue(type, uniformData.size)\n \t}\n };\n\n\treturn uniforms;\n}\n\nmodule.exports = extractUniforms;\n\n},{\"./defaultValue\":10,\"./mapType\":15}],13:[function(require,module,exports){\n/**\n * Extracts the attributes\n * @param gl {WebGLRenderingContext} The current WebGL rendering context\n * @param uniforms {Array} @mat ?\n * @return attributes {Object}\n */\nvar generateUniformAccessObject = function(gl, uniformData)\n{\n // this is the object we will be sending back.\n // an object hierachy will be created for structs\n var uniforms = {data:{}};\n\n uniforms.gl = gl;\n\n var uniformKeys= Object.keys(uniformData);\n\n for (var i = 0; i < uniformKeys.length; i++)\n {\n var fullName = uniformKeys[i]\n\n var nameTokens = fullName.split('.');\n var name = nameTokens[nameTokens.length - 1];\n\n var uniformGroup = getUniformGroup(nameTokens, uniforms);\n\n var uniform = uniformData[fullName];\n uniformGroup.data[name] = uniform;\n\n uniformGroup.gl = gl;\n\n Object.defineProperty(uniformGroup, name, {\n get: generateGetter(name),\n set: generateSetter(name, uniform)\n })\n };\n\n return uniforms;\n}\n\nvar generateGetter = function(name)\n{\n\tvar template = getterTemplate.replace('%%', name);\n\treturn new Function(template);\n}\n\nvar generateSetter = function(name, uniform)\n{\n var template = setterTemplate.replace(/%%/g, name);\n var setTemplate\n\n if(uniform.size === 1)\n {\n setTemplate = GLSL_TO_SINGLE_SETTERS[uniform.type];\n }\n else\n {\n setTemplate = GLSL_TO_ARRAY_SETTERS[uniform.type];\n }\n\n if(setTemplate)\n {\n template += \"\\nthis.gl.\" + setTemplate + \";\";\n }\n\n \treturn new Function('value', template);\n}\n\nvar getUniformGroup = function(nameTokens, uniform)\n{\n var cur = uniform;\n\n for (var i = 0; i < nameTokens.length - 1; i++)\n {\n var o = cur[nameTokens[i]] || {data:{}};\n cur[nameTokens[i]] = o;\n cur = o;\n };\n\n return cur\n}\n\nvar getterTemplate = [\n 'return this.data.%%.value;',\n].join('\\n');\n\nvar setterTemplate = [\n 'this.data.%%.value = value;',\n 'var location = this.data.%%.location;'\n].join('\\n');\n\n\nvar GLSL_TO_SINGLE_SETTERS = {\n\n 'float': 'uniform1f(location, value)',\n\n 'vec2': 'uniform2f(location, value[0], value[1])',\n 'vec3': 'uniform3f(location, value[0], value[1], value[2])',\n 'vec4': 'uniform4f(location, value[0], value[1], value[2], value[3])',\n\n 'int': 'uniform1i(location, value)',\n 'ivec2': 'uniform2i(location, value[0], value[1])',\n 'ivec3': 'uniform3i(location, value[0], value[1], value[2])',\n 'ivec4': 'uniform4i(location, value[0], value[1], value[2], value[3])',\n\n 'bool': 'uniform1i(location, value)',\n 'bvec2': 'uniform2i(location, value[0], value[1])',\n 'bvec3': 'uniform3i(location, value[0], value[1], value[2])',\n 'bvec4': 'uniform4i(location, value[0], value[1], value[2], value[3])',\n\n 'mat2': 'uniformMatrix2fv(location, false, value)',\n 'mat3': 'uniformMatrix3fv(location, false, value)',\n 'mat4': 'uniformMatrix4fv(location, false, value)',\n\n 'sampler2D':'uniform1i(location, value)'\n}\n\nvar GLSL_TO_ARRAY_SETTERS = {\n\n 'float': 'uniform1fv(location, value)',\n\n 'vec2': 'uniform2fv(location, value)',\n 'vec3': 'uniform3fv(location, value)',\n 'vec4': 'uniform4fv(location, value)',\n\n 'int': 'uniform1iv(location, value)',\n 'ivec2': 'uniform2iv(location, value)',\n 'ivec3': 'uniform3iv(location, value)',\n 'ivec4': 'uniform4iv(location, value)',\n\n 'bool': 'uniform1iv(location, value)',\n 'bvec2': 'uniform2iv(location, value)',\n 'bvec3': 'uniform3iv(location, value)',\n 'bvec4': 'uniform4iv(location, value)',\n\n 'sampler2D':'uniform1iv(location, value)'\n}\n\nmodule.exports = generateUniformAccessObject;\n\n},{}],14:[function(require,module,exports){\n\n\nvar mapSize = function(type) \n{ \n return GLSL_TO_SIZE[type];\n}\n\n\nvar GLSL_TO_SIZE = {\n 'float': 1,\n 'vec2': 2,\n 'vec3': 3,\n 'vec4': 4,\n\n 'int': 1,\n 'ivec2': 2,\n 'ivec3': 3,\n 'ivec4': 4,\n\n 'bool': 1,\n 'bvec2': 2,\n 'bvec3': 3,\n 'bvec4': 4,\n\n 'mat2': 4,\n 'mat3': 9,\n 'mat4': 16,\n\n 'sampler2D': 1\n}\n\nmodule.exports = mapSize;\n\n},{}],15:[function(require,module,exports){\n\n\nvar mapSize = function(gl, type) \n{\n if(!GL_TABLE) \n {\n var typeNames = Object.keys(GL_TO_GLSL_TYPES);\n\n GL_TABLE = {};\n\n for(var i = 0; i < typeNames.length; ++i) \n {\n var tn = typeNames[i];\n GL_TABLE[ gl[tn] ] = GL_TO_GLSL_TYPES[tn];\n }\n }\n\n return GL_TABLE[type];\n}\n\nvar GL_TABLE = null;\n\nvar GL_TO_GLSL_TYPES = {\n 'FLOAT': 'float',\n 'FLOAT_VEC2': 'vec2',\n 'FLOAT_VEC3': 'vec3',\n 'FLOAT_VEC4': 'vec4',\n\n 'INT': 'int',\n 'INT_VEC2': 'ivec2',\n 'INT_VEC3': 'ivec3',\n 'INT_VEC4': 'ivec4',\n \n 'BOOL': 'bool',\n 'BOOL_VEC2': 'bvec2',\n 'BOOL_VEC3': 'bvec3',\n 'BOOL_VEC4': 'bvec4',\n \n 'FLOAT_MAT2': 'mat2',\n 'FLOAT_MAT3': 'mat3',\n 'FLOAT_MAT4': 'mat4',\n \n 'SAMPLER_2D': 'sampler2D' \n}\n\nmodule.exports = mapSize;\n\n},{}],16:[function(require,module,exports){\n(function (process,global){\n/*!\n * async\n * https://github.com/caolan/async\n *\n * Copyright 2010-2014 Caolan McMahon\n * Released under the MIT license\n */\n(function () {\n\n var async = {};\n function noop() {}\n function identity(v) {\n return v;\n }\n function toBool(v) {\n return !!v;\n }\n function notId(v) {\n return !v;\n }\n\n // global on the server, window in the browser\n var previous_async;\n\n // Establish the root object, `window` (`self`) in the browser, `global`\n // on the server, or `this` in some virtual machines. We use `self`\n // instead of `window` for `WebWorker` support.\n var root = typeof self === 'object' && self.self === self && self ||\n typeof global === 'object' && global.global === global && global ||\n this;\n\n if (root != null) {\n previous_async = root.async;\n }\n\n async.noConflict = function () {\n root.async = previous_async;\n return async;\n };\n\n function only_once(fn) {\n return function() {\n if (fn === null) throw new Error(\"Callback was already called.\");\n fn.apply(this, arguments);\n fn = null;\n };\n }\n\n function _once(fn) {\n return function() {\n if (fn === null) return;\n fn.apply(this, arguments);\n fn = null;\n };\n }\n\n //// cross-browser compatiblity functions ////\n\n var _toString = Object.prototype.toString;\n\n var _isArray = Array.isArray || function (obj) {\n return _toString.call(obj) === '[object Array]';\n };\n\n // Ported from underscore.js isObject\n var _isObject = function(obj) {\n var type = typeof obj;\n return type === 'function' || type === 'object' && !!obj;\n };\n\n function _isArrayLike(arr) {\n return _isArray(arr) || (\n // has a positive integer length property\n typeof arr.length === \"number\" &&\n arr.length >= 0 &&\n arr.length % 1 === 0\n );\n }\n\n function _arrayEach(arr, iterator) {\n var index = -1,\n length = arr.length;\n\n while (++index < length) {\n iterator(arr[index], index, arr);\n }\n }\n\n function _map(arr, iterator) {\n var index = -1,\n length = arr.length,\n result = Array(length);\n\n while (++index < length) {\n result[index] = iterator(arr[index], index, arr);\n }\n return result;\n }\n\n function _range(count) {\n return _map(Array(count), function (v, i) { return i; });\n }\n\n function _reduce(arr, iterator, memo) {\n _arrayEach(arr, function (x, i, a) {\n memo = iterator(memo, x, i, a);\n });\n return memo;\n }\n\n function _forEachOf(object, iterator) {\n _arrayEach(_keys(object), function (key) {\n iterator(object[key], key);\n });\n }\n\n function _indexOf(arr, item) {\n for (var i = 0; i < arr.length; i++) {\n if (arr[i] === item) return i;\n }\n return -1;\n }\n\n var _keys = Object.keys || function (obj) {\n var keys = [];\n for (var k in obj) {\n if (obj.hasOwnProperty(k)) {\n keys.push(k);\n }\n }\n return keys;\n };\n\n function _keyIterator(coll) {\n var i = -1;\n var len;\n var keys;\n if (_isArrayLike(coll)) {\n len = coll.length;\n return function next() {\n i++;\n return i < len ? i : null;\n };\n } else {\n keys = _keys(coll);\n len = keys.length;\n return function next() {\n i++;\n return i < len ? keys[i] : null;\n };\n }\n }\n\n // Similar to ES6's rest param (http://ariya.ofilabs.com/2013/03/es6-and-rest-parameter.html)\n // This accumulates the arguments passed into an array, after a given index.\n // From underscore.js (https://github.com/jashkenas/underscore/pull/2140).\n function _restParam(func, startIndex) {\n startIndex = startIndex == null ? func.length - 1 : +startIndex;\n return function() {\n var length = Math.max(arguments.length - startIndex, 0);\n var rest = Array(length);\n for (var index = 0; index < length; index++) {\n rest[index] = arguments[index + startIndex];\n }\n switch (startIndex) {\n case 0: return func.call(this, rest);\n case 1: return func.call(this, arguments[0], rest);\n }\n // Currently unused but handle cases outside of the switch statement:\n // var args = Array(startIndex + 1);\n // for (index = 0; index < startIndex; index++) {\n // args[index] = arguments[index];\n // }\n // args[startIndex] = rest;\n // return func.apply(this, args);\n };\n }\n\n function _withoutIndex(iterator) {\n return function (value, index, callback) {\n return iterator(value, callback);\n };\n }\n\n //// exported async module functions ////\n\n //// nextTick implementation with browser-compatible fallback ////\n\n // capture the global reference to guard against fakeTimer mocks\n var _setImmediate = typeof setImmediate === 'function' && setImmediate;\n\n var _delay = _setImmediate ? function(fn) {\n // not a direct alias for IE10 compatibility\n _setImmediate(fn);\n } : function(fn) {\n setTimeout(fn, 0);\n };\n\n if (typeof process === 'object' && typeof process.nextTick === 'function') {\n async.nextTick = process.nextTick;\n } else {\n async.nextTick = _delay;\n }\n async.setImmediate = _setImmediate ? _delay : async.nextTick;\n\n\n async.forEach =\n async.each = function (arr, iterator, callback) {\n return async.eachOf(arr, _withoutIndex(iterator), callback);\n };\n\n async.forEachSeries =\n async.eachSeries = function (arr, iterator, callback) {\n return async.eachOfSeries(arr, _withoutIndex(iterator), callback);\n };\n\n\n async.forEachLimit =\n async.eachLimit = function (arr, limit, iterator, callback) {\n return _eachOfLimit(limit)(arr, _withoutIndex(iterator), callback);\n };\n\n async.forEachOf =\n async.eachOf = function (object, iterator, callback) {\n callback = _once(callback || noop);\n object = object || [];\n\n var iter = _keyIterator(object);\n var key, completed = 0;\n\n while ((key = iter()) != null) {\n completed += 1;\n iterator(object[key], key, only_once(done));\n }\n\n if (completed === 0) callback(null);\n\n function done(err) {\n completed--;\n if (err) {\n callback(err);\n }\n // Check key is null in case iterator isn't exhausted\n // and done resolved synchronously.\n else if (key === null && completed <= 0) {\n callback(null);\n }\n }\n };\n\n async.forEachOfSeries =\n async.eachOfSeries = function (obj, iterator, callback) {\n callback = _once(callback || noop);\n obj = obj || [];\n var nextKey = _keyIterator(obj);\n var key = nextKey();\n function iterate() {\n var sync = true;\n if (key === null) {\n return callback(null);\n }\n iterator(obj[key], key, only_once(function (err) {\n if (err) {\n callback(err);\n }\n else {\n key = nextKey();\n if (key === null) {\n return callback(null);\n } else {\n if (sync) {\n async.setImmediate(iterate);\n } else {\n iterate();\n }\n }\n }\n }));\n sync = false;\n }\n iterate();\n };\n\n\n\n async.forEachOfLimit =\n async.eachOfLimit = function (obj, limit, iterator, callback) {\n _eachOfLimit(limit)(obj, iterator, callback);\n };\n\n function _eachOfLimit(limit) {\n\n return function (obj, iterator, callback) {\n callback = _once(callback || noop);\n obj = obj || [];\n var nextKey = _keyIterator(obj);\n if (limit <= 0) {\n return callback(null);\n }\n var done = false;\n var running = 0;\n var errored = false;\n\n (function replenish () {\n if (done && running <= 0) {\n return callback(null);\n }\n\n while (running < limit && !errored) {\n var key = nextKey();\n if (key === null) {\n done = true;\n if (running <= 0) {\n callback(null);\n }\n return;\n }\n running += 1;\n iterator(obj[key], key, only_once(function (err) {\n running -= 1;\n if (err) {\n callback(err);\n errored = true;\n }\n else {\n replenish();\n }\n }));\n }\n })();\n };\n }\n\n\n function doParallel(fn) {\n return function (obj, iterator, callback) {\n return fn(async.eachOf, obj, iterator, callback);\n };\n }\n function doParallelLimit(fn) {\n return function (obj, limit, iterator, callback) {\n return fn(_eachOfLimit(limit), obj, iterator, callback);\n };\n }\n function doSeries(fn) {\n return function (obj, iterator, callback) {\n return fn(async.eachOfSeries, obj, iterator, callback);\n };\n }\n\n function _asyncMap(eachfn, arr, iterator, callback) {\n callback = _once(callback || noop);\n arr = arr || [];\n var results = _isArrayLike(arr) ? [] : {};\n eachfn(arr, function (value, index, callback) {\n iterator(value, function (err, v) {\n results[index] = v;\n callback(err);\n });\n }, function (err) {\n callback(err, results);\n });\n }\n\n async.map = doParallel(_asyncMap);\n async.mapSeries = doSeries(_asyncMap);\n async.mapLimit = doParallelLimit(_asyncMap);\n\n // reduce only has a series version, as doing reduce in parallel won't\n // work in many situations.\n async.inject =\n async.foldl =\n async.reduce = function (arr, memo, iterator, callback) {\n async.eachOfSeries(arr, function (x, i, callback) {\n iterator(memo, x, function (err, v) {\n memo = v;\n callback(err);\n });\n }, function (err) {\n callback(err, memo);\n });\n };\n\n async.foldr =\n async.reduceRight = function (arr, memo, iterator, callback) {\n var reversed = _map(arr, identity).reverse();\n async.reduce(reversed, memo, iterator, callback);\n };\n\n async.transform = function (arr, memo, iterator, callback) {\n if (arguments.length === 3) {\n callback = iterator;\n iterator = memo;\n memo = _isArray(arr) ? [] : {};\n }\n\n async.eachOf(arr, function(v, k, cb) {\n iterator(memo, v, k, cb);\n }, function(err) {\n callback(err, memo);\n });\n };\n\n function _filter(eachfn, arr, iterator, callback) {\n var results = [];\n eachfn(arr, function (x, index, callback) {\n iterator(x, function (v) {\n if (v) {\n results.push({index: index, value: x});\n }\n callback();\n });\n }, function () {\n callback(_map(results.sort(function (a, b) {\n return a.index - b.index;\n }), function (x) {\n return x.value;\n }));\n });\n }\n\n async.select =\n async.filter = doParallel(_filter);\n\n async.selectLimit =\n async.filterLimit = doParallelLimit(_filter);\n\n async.selectSeries =\n async.filterSeries = doSeries(_filter);\n\n function _reject(eachfn, arr, iterator, callback) {\n _filter(eachfn, arr, function(value, cb) {\n iterator(value, function(v) {\n cb(!v);\n });\n }, callback);\n }\n async.reject = doParallel(_reject);\n async.rejectLimit = doParallelLimit(_reject);\n async.rejectSeries = doSeries(_reject);\n\n function _createTester(eachfn, check, getResult) {\n return function(arr, limit, iterator, cb) {\n function done() {\n if (cb) cb(getResult(false, void 0));\n }\n function iteratee(x, _, callback) {\n if (!cb) return callback();\n iterator(x, function (v) {\n if (cb && check(v)) {\n cb(getResult(true, x));\n cb = iterator = false;\n }\n callback();\n });\n }\n if (arguments.length > 3) {\n eachfn(arr, limit, iteratee, done);\n } else {\n cb = iterator;\n iterator = limit;\n eachfn(arr, iteratee, done);\n }\n };\n }\n\n async.any =\n async.some = _createTester(async.eachOf, toBool, identity);\n\n async.someLimit = _createTester(async.eachOfLimit, toBool, identity);\n\n async.all =\n async.every = _createTester(async.eachOf, notId, notId);\n\n async.everyLimit = _createTester(async.eachOfLimit, notId, notId);\n\n function _findGetResult(v, x) {\n return x;\n }\n async.detect = _createTester(async.eachOf, identity, _findGetResult);\n async.detectSeries = _createTester(async.eachOfSeries, identity, _findGetResult);\n async.detectLimit = _createTester(async.eachOfLimit, identity, _findGetResult);\n\n async.sortBy = function (arr, iterator, callback) {\n async.map(arr, function (x, callback) {\n iterator(x, function (err, criteria) {\n if (err) {\n callback(err);\n }\n else {\n callback(null, {value: x, criteria: criteria});\n }\n });\n }, function (err, results) {\n if (err) {\n return callback(err);\n }\n else {\n callback(null, _map(results.sort(comparator), function (x) {\n return x.value;\n }));\n }\n\n });\n\n function comparator(left, right) {\n var a = left.criteria, b = right.criteria;\n return a < b ? -1 : a > b ? 1 : 0;\n }\n };\n\n async.auto = function (tasks, concurrency, callback) {\n if (typeof arguments[1] === 'function') {\n // concurrency is optional, shift the args.\n callback = concurrency;\n concurrency = null;\n }\n callback = _once(callback || noop);\n var keys = _keys(tasks);\n var remainingTasks = keys.length;\n if (!remainingTasks) {\n return callback(null);\n }\n if (!concurrency) {\n concurrency = remainingTasks;\n }\n\n var results = {};\n var runningTasks = 0;\n\n var hasError = false;\n\n var listeners = [];\n function addListener(fn) {\n listeners.unshift(fn);\n }\n function removeListener(fn) {\n var idx = _indexOf(listeners, fn);\n if (idx >= 0) listeners.splice(idx, 1);\n }\n function taskComplete() {\n remainingTasks--;\n _arrayEach(listeners.slice(0), function (fn) {\n fn();\n });\n }\n\n addListener(function () {\n if (!remainingTasks) {\n callback(null, results);\n }\n });\n\n _arrayEach(keys, function (k) {\n if (hasError) return;\n var task = _isArray(tasks[k]) ? tasks[k]: [tasks[k]];\n var taskCallback = _restParam(function(err, args) {\n runningTasks--;\n if (args.length <= 1) {\n args = args[0];\n }\n if (err) {\n var safeResults = {};\n _forEachOf(results, function(val, rkey) {\n safeResults[rkey] = val;\n });\n safeResults[k] = args;\n hasError = true;\n\n callback(err, safeResults);\n }\n else {\n results[k] = args;\n async.setImmediate(taskComplete);\n }\n });\n var requires = task.slice(0, task.length - 1);\n // prevent dead-locks\n var len = requires.length;\n var dep;\n while (len--) {\n if (!(dep = tasks[requires[len]])) {\n throw new Error('Has nonexistent dependency in ' + requires.join(', '));\n }\n if (_isArray(dep) && _indexOf(dep, k) >= 0) {\n throw new Error('Has cyclic dependencies');\n }\n }\n function ready() {\n return runningTasks < concurrency && _reduce(requires, function (a, x) {\n return (a && results.hasOwnProperty(x));\n }, true) && !results.hasOwnProperty(k);\n }\n if (ready()) {\n runningTasks++;\n task[task.length - 1](taskCallback, results);\n }\n else {\n addListener(listener);\n }\n function listener() {\n if (ready()) {\n runningTasks++;\n removeListener(listener);\n task[task.length - 1](taskCallback, results);\n }\n }\n });\n };\n\n\n\n async.retry = function(times, task, callback) {\n var DEFAULT_TIMES = 5;\n var DEFAULT_INTERVAL = 0;\n\n var attempts = [];\n\n var opts = {\n times: DEFAULT_TIMES,\n interval: DEFAULT_INTERVAL\n };\n\n function parseTimes(acc, t){\n if(typeof t === 'number'){\n acc.times = parseInt(t, 10) || DEFAULT_TIMES;\n } else if(typeof t === 'object'){\n acc.times = parseInt(t.times, 10) || DEFAULT_TIMES;\n acc.interval = parseInt(t.interval, 10) || DEFAULT_INTERVAL;\n } else {\n throw new Error('Unsupported argument type for \\'times\\': ' + typeof t);\n }\n }\n\n var length = arguments.length;\n if (length < 1 || length > 3) {\n throw new Error('Invalid arguments - must be either (task), (task, callback), (times, task) or (times, task, callback)');\n } else if (length <= 2 && typeof times === 'function') {\n callback = task;\n task = times;\n }\n if (typeof times !== 'function') {\n parseTimes(opts, times);\n }\n opts.callback = callback;\n opts.task = task;\n\n function wrappedTask(wrappedCallback, wrappedResults) {\n function retryAttempt(task, finalAttempt) {\n return function(seriesCallback) {\n task(function(err, result){\n seriesCallback(!err || finalAttempt, {err: err, result: result});\n }, wrappedResults);\n };\n }\n\n function retryInterval(interval){\n return function(seriesCallback){\n setTimeout(function(){\n seriesCallback(null);\n }, interval);\n };\n }\n\n while (opts.times) {\n\n var finalAttempt = !(opts.times-=1);\n attempts.push(retryAttempt(opts.task, finalAttempt));\n if(!finalAttempt && opts.interval > 0){\n attempts.push(retryInterval(opts.interval));\n }\n }\n\n async.series(attempts, function(done, data){\n data = data[data.length - 1];\n (wrappedCallback || opts.callback)(data.err, data.result);\n });\n }\n\n // If a callback is passed, run this as a controll flow\n return opts.callback ? wrappedTask() : wrappedTask;\n };\n\n async.waterfall = function (tasks, callback) {\n callback = _once(callback || noop);\n if (!_isArray(tasks)) {\n var err = new Error('First argument to waterfall must be an array of functions');\n return callback(err);\n }\n if (!tasks.length) {\n return callback();\n }\n function wrapIterator(iterator) {\n return _restParam(function (err, args) {\n if (err) {\n callback.apply(null, [err].concat(args));\n }\n else {\n var next = iterator.next();\n if (next) {\n args.push(wrapIterator(next));\n }\n else {\n args.push(callback);\n }\n ensureAsync(iterator).apply(null, args);\n }\n });\n }\n wrapIterator(async.iterator(tasks))();\n };\n\n function _parallel(eachfn, tasks, callback) {\n callback = callback || noop;\n var results = _isArrayLike(tasks) ? [] : {};\n\n eachfn(tasks, function (task, key, callback) {\n task(_restParam(function (err, args) {\n if (args.length <= 1) {\n args = args[0];\n }\n results[key] = args;\n callback(err);\n }));\n }, function (err) {\n callback(err, results);\n });\n }\n\n async.parallel = function (tasks, callback) {\n _parallel(async.eachOf, tasks, callback);\n };\n\n async.parallelLimit = function(tasks, limit, callback) {\n _parallel(_eachOfLimit(limit), tasks, callback);\n };\n\n async.series = function(tasks, callback) {\n _parallel(async.eachOfSeries, tasks, callback);\n };\n\n async.iterator = function (tasks) {\n function makeCallback(index) {\n function fn() {\n if (tasks.length) {\n tasks[index].apply(null, arguments);\n }\n return fn.next();\n }\n fn.next = function () {\n return (index < tasks.length - 1) ? makeCallback(index + 1): null;\n };\n return fn;\n }\n return makeCallback(0);\n };\n\n async.apply = _restParam(function (fn, args) {\n return _restParam(function (callArgs) {\n return fn.apply(\n null, args.concat(callArgs)\n );\n });\n });\n\n function _concat(eachfn, arr, fn, callback) {\n var result = [];\n eachfn(arr, function (x, index, cb) {\n fn(x, function (err, y) {\n result = result.concat(y || []);\n cb(err);\n });\n }, function (err) {\n callback(err, result);\n });\n }\n async.concat = doParallel(_concat);\n async.concatSeries = doSeries(_concat);\n\n async.whilst = function (test, iterator, callback) {\n callback = callback || noop;\n if (test()) {\n var next = _restParam(function(err, args) {\n if (err) {\n callback(err);\n } else if (test.apply(this, args)) {\n iterator(next);\n } else {\n callback.apply(null, [null].concat(args));\n }\n });\n iterator(next);\n } else {\n callback(null);\n }\n };\n\n async.doWhilst = function (iterator, test, callback) {\n var calls = 0;\n return async.whilst(function() {\n return ++calls <= 1 || test.apply(this, arguments);\n }, iterator, callback);\n };\n\n async.until = function (test, iterator, callback) {\n return async.whilst(function() {\n return !test.apply(this, arguments);\n }, iterator, callback);\n };\n\n async.doUntil = function (iterator, test, callback) {\n return async.doWhilst(iterator, function() {\n return !test.apply(this, arguments);\n }, callback);\n };\n\n async.during = function (test, iterator, callback) {\n callback = callback || noop;\n\n var next = _restParam(function(err, args) {\n if (err) {\n callback(err);\n } else {\n args.push(check);\n test.apply(this, args);\n }\n });\n\n var check = function(err, truth) {\n if (err) {\n callback(err);\n } else if (truth) {\n iterator(next);\n } else {\n callback(null);\n }\n };\n\n test(check);\n };\n\n async.doDuring = function (iterator, test, callback) {\n var calls = 0;\n async.during(function(next) {\n if (calls++ < 1) {\n next(null, true);\n } else {\n test.apply(this, arguments);\n }\n }, iterator, callback);\n };\n\n function _queue(worker, concurrency, payload) {\n if (concurrency == null) {\n concurrency = 1;\n }\n else if(concurrency === 0) {\n throw new Error('Concurrency must not be zero');\n }\n function _insert(q, data, pos, callback) {\n if (callback != null && typeof callback !== \"function\") {\n throw new Error(\"task callback must be a function\");\n }\n q.started = true;\n if (!_isArray(data)) {\n data = [data];\n }\n if(data.length === 0 && q.idle()) {\n // call drain immediately if there are no tasks\n return async.setImmediate(function() {\n q.drain();\n });\n }\n _arrayEach(data, function(task) {\n var item = {\n data: task,\n callback: callback || noop\n };\n\n if (pos) {\n q.tasks.unshift(item);\n } else {\n q.tasks.push(item);\n }\n\n if (q.tasks.length === q.concurrency) {\n q.saturated();\n }\n });\n async.setImmediate(q.process);\n }\n function _next(q, tasks) {\n return function(){\n workers -= 1;\n\n var removed = false;\n var args = arguments;\n _arrayEach(tasks, function (task) {\n _arrayEach(workersList, function (worker, index) {\n if (worker === task && !removed) {\n workersList.splice(index, 1);\n removed = true;\n }\n });\n\n task.callback.apply(task, args);\n });\n if (q.tasks.length + workers === 0) {\n q.drain();\n }\n q.process();\n };\n }\n\n var workers = 0;\n var workersList = [];\n var q = {\n tasks: [],\n concurrency: concurrency,\n payload: payload,\n saturated: noop,\n empty: noop,\n drain: noop,\n started: false,\n paused: false,\n push: function (data, callback) {\n _insert(q, data, false, callback);\n },\n kill: function () {\n q.drain = noop;\n q.tasks = [];\n },\n unshift: function (data, callback) {\n _insert(q, data, true, callback);\n },\n process: function () {\n while(!q.paused && workers < q.concurrency && q.tasks.length){\n\n var tasks = q.payload ?\n q.tasks.splice(0, q.payload) :\n q.tasks.splice(0, q.tasks.length);\n\n var data = _map(tasks, function (task) {\n return task.data;\n });\n\n if (q.tasks.length === 0) {\n q.empty();\n }\n workers += 1;\n workersList.push(tasks[0]);\n var cb = only_once(_next(q, tasks));\n worker(data, cb);\n }\n },\n length: function () {\n return q.tasks.length;\n },\n running: function () {\n return workers;\n },\n workersList: function () {\n return workersList;\n },\n idle: function() {\n return q.tasks.length + workers === 0;\n },\n pause: function () {\n q.paused = true;\n },\n resume: function () {\n if (q.paused === false) { return; }\n q.paused = false;\n var resumeCount = Math.min(q.concurrency, q.tasks.length);\n // Need to call q.process once per concurrent\n // worker to preserve full concurrency after pause\n for (var w = 1; w <= resumeCount; w++) {\n async.setImmediate(q.process);\n }\n }\n };\n return q;\n }\n\n async.queue = function (worker, concurrency) {\n var q = _queue(function (items, cb) {\n worker(items[0], cb);\n }, concurrency, 1);\n\n return q;\n };\n\n async.priorityQueue = function (worker, concurrency) {\n\n function _compareTasks(a, b){\n return a.priority - b.priority;\n }\n\n function _binarySearch(sequence, item, compare) {\n var beg = -1,\n end = sequence.length - 1;\n while (beg < end) {\n var mid = beg + ((end - beg + 1) >>> 1);\n if (compare(item, sequence[mid]) >= 0) {\n beg = mid;\n } else {\n end = mid - 1;\n }\n }\n return beg;\n }\n\n function _insert(q, data, priority, callback) {\n if (callback != null && typeof callback !== \"function\") {\n throw new Error(\"task callback must be a function\");\n }\n q.started = true;\n if (!_isArray(data)) {\n data = [data];\n }\n if(data.length === 0) {\n // call drain immediately if there are no tasks\n return async.setImmediate(function() {\n q.drain();\n });\n }\n _arrayEach(data, function(task) {\n var item = {\n data: task,\n priority: priority,\n callback: typeof callback === 'function' ? callback : noop\n };\n\n q.tasks.splice(_binarySearch(q.tasks, item, _compareTasks) + 1, 0, item);\n\n if (q.tasks.length === q.concurrency) {\n q.saturated();\n }\n async.setImmediate(q.process);\n });\n }\n\n // Start with a normal queue\n var q = async.queue(worker, concurrency);\n\n // Override push to accept second parameter representing priority\n q.push = function (data, priority, callback) {\n _insert(q, data, priority, callback);\n };\n\n // Remove unshift function\n delete q.unshift;\n\n return q;\n };\n\n async.cargo = function (worker, payload) {\n return _queue(worker, 1, payload);\n };\n\n function _console_fn(name) {\n return _restParam(function (fn, args) {\n fn.apply(null, args.concat([_restParam(function (err, args) {\n if (typeof console === 'object') {\n if (err) {\n if (console.error) {\n console.error(err);\n }\n }\n else if (console[name]) {\n _arrayEach(args, function (x) {\n console[name](x);\n });\n }\n }\n })]));\n });\n }\n async.log = _console_fn('log');\n async.dir = _console_fn('dir');\n /*async.info = _console_fn('info');\n async.warn = _console_fn('warn');\n async.error = _console_fn('error');*/\n\n async.memoize = function (fn, hasher) {\n var memo = {};\n var queues = {};\n var has = Object.prototype.hasOwnProperty;\n hasher = hasher || identity;\n var memoized = _restParam(function memoized(args) {\n var callback = args.pop();\n var key = hasher.apply(null, args);\n if (has.call(memo, key)) { \n async.setImmediate(function () {\n callback.apply(null, memo[key]);\n });\n }\n else if (has.call(queues, key)) {\n queues[key].push(callback);\n }\n else {\n queues[key] = [callback];\n fn.apply(null, args.concat([_restParam(function (args) {\n memo[key] = args;\n var q = queues[key];\n delete queues[key];\n for (var i = 0, l = q.length; i < l; i++) {\n q[i].apply(null, args);\n }\n })]));\n }\n });\n memoized.memo = memo;\n memoized.unmemoized = fn;\n return memoized;\n };\n\n async.unmemoize = function (fn) {\n return function () {\n return (fn.unmemoized || fn).apply(null, arguments);\n };\n };\n\n function _times(mapper) {\n return function (count, iterator, callback) {\n mapper(_range(count), iterator, callback);\n };\n }\n\n async.times = _times(async.map);\n async.timesSeries = _times(async.mapSeries);\n async.timesLimit = function (count, limit, iterator, callback) {\n return async.mapLimit(_range(count), limit, iterator, callback);\n };\n\n async.seq = function (/* functions... */) {\n var fns = arguments;\n return _restParam(function (args) {\n var that = this;\n\n var callback = args[args.length - 1];\n if (typeof callback == 'function') {\n args.pop();\n } else {\n callback = noop;\n }\n\n async.reduce(fns, args, function (newargs, fn, cb) {\n fn.apply(that, newargs.concat([_restParam(function (err, nextargs) {\n cb(err, nextargs);\n })]));\n },\n function (err, results) {\n callback.apply(that, [err].concat(results));\n });\n });\n };\n\n async.compose = function (/* functions... */) {\n return async.seq.apply(null, Array.prototype.reverse.call(arguments));\n };\n\n\n function _applyEach(eachfn) {\n return _restParam(function(fns, args) {\n var go = _restParam(function(args) {\n var that = this;\n var callback = args.pop();\n return eachfn(fns, function (fn, _, cb) {\n fn.apply(that, args.concat([cb]));\n },\n callback);\n });\n if (args.length) {\n return go.apply(this, args);\n }\n else {\n return go;\n }\n });\n }\n\n async.applyEach = _applyEach(async.eachOf);\n async.applyEachSeries = _applyEach(async.eachOfSeries);\n\n\n async.forever = function (fn, callback) {\n var done = only_once(callback || noop);\n var task = ensureAsync(fn);\n function next(err) {\n if (err) {\n return done(err);\n }\n task(next);\n }\n next();\n };\n\n function ensureAsync(fn) {\n return _restParam(function (args) {\n var callback = args.pop();\n args.push(function () {\n var innerArgs = arguments;\n if (sync) {\n async.setImmediate(function () {\n callback.apply(null, innerArgs);\n });\n } else {\n callback.apply(null, innerArgs);\n }\n });\n var sync = true;\n fn.apply(this, args);\n sync = false;\n });\n }\n\n async.ensureAsync = ensureAsync;\n\n async.constant = _restParam(function(values) {\n var args = [null].concat(values);\n return function (callback) {\n return callback.apply(this, args);\n };\n });\n\n async.wrapSync =\n async.asyncify = function asyncify(func) {\n return _restParam(function (args) {\n var callback = args.pop();\n var result;\n try {\n result = func.apply(this, args);\n } catch (e) {\n return callback(e);\n }\n // if result is Promise object\n if (_isObject(result) && typeof result.then === \"function\") {\n result.then(function(value) {\n callback(null, value);\n })[\"catch\"](function(err) {\n callback(err.message ? err : new Error(err));\n });\n } else {\n callback(null, result);\n }\n });\n };\n\n // Node.js\n if (typeof module === 'object' && module.exports) {\n module.exports = async;\n }\n // AMD / RequireJS\n else if (typeof define === 'function' && define.amd) {\n define([], function () {\n return async;\n });\n }\n // included directly via