/*
* 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";
// constructor:
/**
* 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 | ColorMatrix} matrix A 4x5 matrix describing the color operation to perform. See also the {{#crossLink "ColorMatrix"}}{{/crossLink}}
* class.
**/
function ColorMatrixFilter(matrix) {
// public properties:
/**
* A 4x5 matrix describing the color operation to perform. See also the {{#crossLink "ColorMatrix"}}{{/crossLink}}
* @property matrix
* @type Array | ColorMatrix
**/
this.matrix = matrix;
}
var p = createjs.extend(ColorMatrixFilter, createjs.Filter);
// public methods:
/** docced in super class **/
p.toString = function() {
return "[ColorMatrixFilter]";
};
/** docced in super class **/
p.clone = function() {
return new ColorMatrixFilter(this.matrix);
};
// private methods:
/** docced in super class **/
p._applyFilter = function(imageData) {
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
}
return true;
};
createjs.ColorMatrixFilter = createjs.promote(ColorMatrixFilter, "Filter");
}());