/* * 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) { this.Filter_constructor(); // 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; this.FRAG_SHADER_BODY = ( "uniform mat4 uColorMatrix;" + "uniform vec4 uColorMatrixOffset;" + "void main(void) {" + "vec4 color = texture2D(uSampler, vRenderCoord);" + "mat4 m = uColorMatrix;" + "vec4 newColor = vec4(0,0,0,0);" + "newColor.r = color.r*m[0][0] + color.g*m[0][1] + color.b*m[0][2] + color.a*m[0][3];" + "newColor.g = color.r*m[1][0] + color.g*m[1][1] + color.b*m[1][2] + color.a*m[1][3];" + "newColor.b = color.r*m[2][0] + color.g*m[2][1] + color.b*m[2][2] + color.a*m[2][3];" + "newColor.a = color.r*m[3][0] + color.g*m[3][1] + color.b*m[3][2] + color.a*m[3][3];" + "gl_FragColor = newColor + uColorMatrixOffset;" + "}" ); } var p = createjs.extend(ColorMatrixFilter, createjs.Filter); // TODO: deprecated // p.initialize = function() {}; // searchable for devs wondering where it is. REMOVED. See docs for details. // Docced in superclass p.shaderParamSetup = function(gl, stage, shaderProgram) { var mat = this.matrix; var colorMatrix = new Float32Array([ mat[0],mat[1],mat[2],mat[3], mat[5],mat[6],mat[7],mat[8], mat[10],mat[11],mat[12],mat[13], mat[15],mat[16],mat[17],mat[18] ]); gl.uniformMatrix4fv( gl.getUniformLocation(shaderProgram, "uColorMatrix"), false, colorMatrix ); gl.uniform4f( gl.getUniformLocation(shaderProgram, "uColorMatrixOffset"), mat[4]/255, mat[9]/255, mat[14]/255, mat[19]/255 ); }; // public methods: // Docced in superclass p.toString = function() { return "[ColorMatrixFilter]"; }; // Docced in superclass p.clone = function() { return new ColorMatrixFilter(this.matrix); }; // private methods: // Docced in superclass 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"); }());