001/** 002 * 003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved. 004 * 005 * This library is free software; you can redistribute it and/or 006 * modify it under the terms of the GNU Lesser General Public 007 * License as published by the Free Software Foundation; either 008 * version 2.1 of the License, or (at your option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, 011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013 * Lesser General Public License for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public 016 * License along with this library. If not, see <http://www.gnu.org/licenses/>. 017 * 018 **/ 019/* 020* 021 022Licensed under the Apache License, Version 2.0 (the "License"); 023you may not use this file except in compliance with the License. 024You may obtain a copy of the License at 025 026 http://www.apache.org/licenses/LICENSE-2.0 027 028Unless required by applicable law or agreed to in writing, software 029distributed under the License is distributed on an "AS IS" BASIS, 030WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 031See the License for the specific language governing permissions and 032limitations under the License. 033*/ 034 035package lucee.runtime.img.filter;import java.awt.image.BufferedImage; 036 037import lucee.runtime.engine.ThreadLocalPageContext; 038import lucee.runtime.exp.FunctionException; 039import lucee.runtime.exp.PageException; 040import lucee.runtime.img.ImageUtil; 041import lucee.runtime.type.KeyImpl; 042import lucee.runtime.type.Struct; 043import lucee.runtime.type.util.CollectionUtil; 044 045 046 047public class PointillizeFilter extends CellularFilter implements DynFiltering { 048 049 private float edgeThickness = 0.4f; 050 private boolean fadeEdges = false; 051 private int edgeColor = 0xff000000; 052 private float fuzziness = 0.1f; 053 054 public PointillizeFilter() { 055 setScale(16); 056 setRandomness(0.0f); 057 } 058 059 public void setEdgeThickness(float edgeThickness) { 060 this.edgeThickness = edgeThickness; 061 } 062 063 public float getEdgeThickness() { 064 return edgeThickness; 065 } 066 067 public void setFadeEdges(boolean fadeEdges) { 068 this.fadeEdges = fadeEdges; 069 } 070 071 public boolean getFadeEdges() { 072 return fadeEdges; 073 } 074 075 public void setEdgeColor(int edgeColor) { 076 this.edgeColor = edgeColor; 077 } 078 079 public int getEdgeColor() { 080 return edgeColor; 081 } 082 083 public void setFuzziness(float fuzziness) { 084 this.fuzziness = fuzziness; 085 } 086 087 public float getFuzziness() { 088 return fuzziness; 089 } 090 091 public int getPixel(int x, int y, int[] inPixels, int width, int height) { 092 float nx = m00*x + m01*y; 093 float ny = m10*x + m11*y; 094 nx /= scale; 095 ny /= scale * stretch; 096 nx += 1000; 097 ny += 1000; // Reduce artifacts around 0,0 098 float f = evaluate(nx, ny); 099 100 float f1 = results[0].distance; 101 int srcx = ImageMath.clamp((int)((results[0].x-1000)*scale), 0, width-1); 102 int srcy = ImageMath.clamp((int)((results[0].y-1000)*scale), 0, height-1); 103 int v = inPixels[srcy * width + srcx]; 104 105 if (fadeEdges) { 106 float f2 = results[1].distance; 107 srcx = ImageMath.clamp((int)((results[1].x-1000)*scale), 0, width-1); 108 srcy = ImageMath.clamp((int)((results[1].y-1000)*scale), 0, height-1); 109 int v2 = inPixels[srcy * width + srcx]; 110 v = ImageMath.mixColors(0.5f*f1/f2, v, v2); 111 } else { 112 f = 1-ImageMath.smoothStep(edgeThickness, edgeThickness+fuzziness, f1); 113 v = ImageMath.mixColors(f, edgeColor, v); 114 } 115 return v; 116 } 117 118 public String toString() { 119 return "Stylize/Pointillize..."; 120 } 121 122 public BufferedImage filter(BufferedImage src, Struct parameters) throws PageException {BufferedImage dst=ImageUtil.createBufferedImage(src); 123 Object o; 124 if((o=parameters.removeEL(KeyImpl.init("Fuzziness")))!=null)setFuzziness(ImageFilterUtil.toFloatValue(o,"Fuzziness")); 125 if((o=parameters.removeEL(KeyImpl.init("EdgeThickness")))!=null)setEdgeThickness(ImageFilterUtil.toFloatValue(o,"EdgeThickness")); 126 if((o=parameters.removeEL(KeyImpl.init("FadeEdges")))!=null)setFadeEdges(ImageFilterUtil.toBooleanValue(o,"FadeEdges")); 127 if((o=parameters.removeEL(KeyImpl.init("EdgeColor")))!=null)setEdgeColor(ImageFilterUtil.toColorRGB(o,"EdgeColor")); 128 if((o=parameters.removeEL(KeyImpl.init("Colormap")))!=null)setColormap(ImageFilterUtil.toColormap(o,"Colormap")); 129 if((o=parameters.removeEL(KeyImpl.init("Amount")))!=null)setAmount(ImageFilterUtil.toFloatValue(o,"Amount")); 130 if((o=parameters.removeEL(KeyImpl.init("Turbulence")))!=null)setTurbulence(ImageFilterUtil.toFloatValue(o,"Turbulence")); 131 if((o=parameters.removeEL(KeyImpl.init("Stretch")))!=null)setStretch(ImageFilterUtil.toFloatValue(o,"Stretch")); 132 if((o=parameters.removeEL(KeyImpl.init("Angle")))!=null)setAngle(ImageFilterUtil.toFloatValue(o,"Angle")); 133 if((o=parameters.removeEL(KeyImpl.init("AngleCoefficient")))!=null)setAngleCoefficient(ImageFilterUtil.toFloatValue(o,"AngleCoefficient")); 134 if((o=parameters.removeEL(KeyImpl.init("GradientCoefficient")))!=null)setGradientCoefficient(ImageFilterUtil.toFloatValue(o,"GradientCoefficient")); 135 if((o=parameters.removeEL(KeyImpl.init("F1")))!=null)setF1(ImageFilterUtil.toFloatValue(o,"F1")); 136 if((o=parameters.removeEL(KeyImpl.init("F2")))!=null)setF2(ImageFilterUtil.toFloatValue(o,"F2")); 137 if((o=parameters.removeEL(KeyImpl.init("F3")))!=null)setF3(ImageFilterUtil.toFloatValue(o,"F3")); 138 if((o=parameters.removeEL(KeyImpl.init("F4")))!=null)setF4(ImageFilterUtil.toFloatValue(o,"F4")); 139 if((o=parameters.removeEL(KeyImpl.init("Randomness")))!=null)setRandomness(ImageFilterUtil.toFloatValue(o,"Randomness")); 140 if((o=parameters.removeEL(KeyImpl.init("GridType")))!=null)setGridType(ImageFilterUtil.toString(o,"GridType")); 141 if((o=parameters.removeEL(KeyImpl.init("DistancePower")))!=null)setDistancePower(ImageFilterUtil.toFloatValue(o,"DistancePower")); 142 if((o=parameters.removeEL(KeyImpl.init("Scale")))!=null)setScale(ImageFilterUtil.toFloatValue(o,"Scale")); 143 144 // check for arguments not supported 145 if(parameters.size()>0) { 146 throw new FunctionException(ThreadLocalPageContext.get(), "ImageFilter", 3, "parameters", "the parameter"+(parameters.size()>1?"s":"")+" ["+CollectionUtil.getKeyList(parameters,", ")+"] "+(parameters.size()>1?"are":"is")+" not allowed, only the following parameters are supported [Fuzziness, EdgeThickness, FadeEdges, EdgeColor, Colormap, Amount, Turbulence, Stretch, Angle, Coefficient, AngleCoefficient, GradientCoefficient, F1, F2, F3, F4, Randomness, GridType, DistancePower, Scale]"); 147 } 148 149 return filter(src, dst); 150 } 151}