text: /*
  * ColorMatrixFilter
  * Visit http://createjs.com/ for documentation, updates and examples.
  *
  * Copyright (c) 2010 gskinner.com, inc.
  *
  * Permission is hereby granted, free of charge, to any person
  * obtaining a copy of this software and associated documentation
  * files (the "Software"), to deal in the Software without
  * restriction, including without limitation the rights to use,
  * copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the
  * Software is furnished to do so, subject to the following
  * conditions:
  *
  * The above copyright notice and this permission notice shall be
  * included in all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  */
  
  /**
   * @module EaselJS
   */
  
  // namespace:
  this.createjs = this.createjs||{};
  
  (function() {
  	"use strict";
  
  /**
   * Allows you to carry out complex color operations such as modifying saturation, brightness, or inverting. See the
   * {{#crossLink "ColorMatrix"}}{{/crossLink}} for more information on changing colors. For an easier color transform,
   * consider the {{#crossLink "ColorFilter"}}{{/crossLink}}.
   *
   * <h4>Example</h4>
   * This example creates a red circle, inverts its hue, and then saturates it to brighten it up.
   *
   *      var shape = new createjs.Shape().set({x:100,y:100});
   *      shape.graphics.beginFill("#ff0000").drawCircle(0,0,50);
   *
   *      var matrix = new createjs.ColorMatrix().adjustHue(180).adjustSaturation(100);
   *      shape.filters = [
   *          new createjs.ColorMatrixFilter(matrix)
   *      ];
   *
   *      shape.cache(-50, -50, 100, 100);
   *
   * See {{#crossLink "Filter"}}{{/crossLink}} for an more information on applying filters.
   * @class ColorMatrixFilter
   * @constructor
   * @extends Filter
   * @param {Array} matrix A 4x5 matrix describing the color operation to perform. See also the {{#crossLink "ColorMatrix"}}{{/crossLink}}
   * class.
   **/
  var ColorMatrixFilter = function(matrix) {
    this.initialize(matrix);
  };
  var p = ColorMatrixFilter.prototype = new createjs.Filter();
  
  // public properties:
  	p.matrix = null;
  
  // constructor:
  	// TODO: detailed docs.
  	/**
  	 * @method initialize
  	 * @protected
  	 * @param {Array} matrix A 4x5 matrix describing the color operation to perform.
  	 **/
  	p.initialize = function(matrix) {
  		this.matrix = matrix;
  	};
  
  // public methods:
  	p.applyFilter = function(ctx, x, y, width, height, targetCtx, targetX, targetY) {
  		targetCtx = targetCtx || ctx;
  		if (targetX == null) { targetX = x; }
  		if (targetY == null) { targetY = y; }
  		try {
  			var imageData = ctx.getImageData(x, y, width, height);
  		} catch(e) {
  			//if (!this.suppressCrossDomainErrors) throw new Error("unable to access local image data: " + e);
  			return false;
  		}
  		var data = imageData.data;
  		var l = data.length;
  		var r,g,b,a;
  		var mtx = this.matrix;
  		var m0 =  mtx[0],  m1 =  mtx[1],  m2 =  mtx[2],  m3 =  mtx[3],  m4 =  mtx[4];
  		var m5 =  mtx[5],  m6 =  mtx[6],  m7 =  mtx[7],  m8 =  mtx[8],  m9 =  mtx[9];
  		var m10 = mtx[10], m11 = mtx[11], m12 = mtx[12], m13 = mtx[13], m14 = mtx[14];
  		var m15 = mtx[15], m16 = mtx[16], m17 = mtx[17], m18 = mtx[18], m19 = mtx[19];
  
  		for (var i=0; i<l; i+=4) {
  			r = data[i];
  			g = data[i+1];
  			b = data[i+2];
  			a = data[i+3];
  			data[i] = r*m0+g*m1+b*m2+a*m3+m4; // red
  			data[i+1] = r*m5+g*m6+b*m7+a*m8+m9; // green
  			data[i+2] = r*m10+g*m11+b*m12+a*m13+m14; // blue
  			data[i+3] = r*m15+g*m16+b*m17+a*m18+m19; // alpha
  		}
  		targetCtx.putImageData(imageData, targetX, targetY);
  		return true;
  	};
  
  	p.toString = function() {
  		return "[ColorMatrixFilter]";
  	};
  
  	/**
  	 * Returns a clone of this ColorMatrixFilter instance.
  	 * @method clone
  	 * @return {ColorMatrixFilter} A clone of the current ColorMatrixFilter instance.
  	 **/
  	p.clone = function() {
  		return new ColorMatrixFilter(this.matrix);
  	};
  
  	createjs.ColorMatrixFilter = ColorMatrixFilter;
  
  }());
  