/**
*
* Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
**/
/*
*
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package lucee.runtime.img.filter;import java.awt.image.BufferedImage;
import lucee.runtime.engine.ThreadLocalPageContext;
import lucee.runtime.exp.FunctionException;
import lucee.runtime.exp.PageException;
import lucee.runtime.img.ImageUtil;
import lucee.runtime.type.KeyImpl;
import lucee.runtime.type.Struct;
import lucee.runtime.type.util.CollectionUtil;
public class PointillizeFilter extends CellularFilter implements DynFiltering {
private float edgeThickness = 0.4f;
private boolean fadeEdges = false;
private int edgeColor = 0xff000000;
private float fuzziness = 0.1f;
public PointillizeFilter() {
setScale(16);
setRandomness(0.0f);
}
public void setEdgeThickness(float edgeThickness) {
this.edgeThickness = edgeThickness;
}
public float getEdgeThickness() {
return edgeThickness;
}
public void setFadeEdges(boolean fadeEdges) {
this.fadeEdges = fadeEdges;
}
public boolean getFadeEdges() {
return fadeEdges;
}
public void setEdgeColor(int edgeColor) {
this.edgeColor = edgeColor;
}
public int getEdgeColor() {
return edgeColor;
}
public void setFuzziness(float fuzziness) {
this.fuzziness = fuzziness;
}
public float getFuzziness() {
return fuzziness;
}
@Override
public int getPixel(int x, int y, int[] inPixels, int width, int height) {
float nx = m00*x + m01*y;
float ny = m10*x + m11*y;
nx /= scale;
ny /= scale * stretch;
nx += 1000;
ny += 1000; // Reduce artifacts around 0,0
float f = evaluate(nx, ny);
float f1 = results[0].distance;
int srcx = ImageMath.clamp((int)((results[0].x-1000)*scale), 0, width-1);
int srcy = ImageMath.clamp((int)((results[0].y-1000)*scale), 0, height-1);
int v = inPixels[srcy * width + srcx];
if (fadeEdges) {
float f2 = results[1].distance;
srcx = ImageMath.clamp((int)((results[1].x-1000)*scale), 0, width-1);
srcy = ImageMath.clamp((int)((results[1].y-1000)*scale), 0, height-1);
int v2 = inPixels[srcy * width + srcx];
v = ImageMath.mixColors(0.5f*f1/f2, v, v2);
} else {
f = 1-ImageMath.smoothStep(edgeThickness, edgeThickness+fuzziness, f1);
v = ImageMath.mixColors(f, edgeColor, v);
}
return v;
}
@Override
public String toString() {
return "Stylize/Pointillize...";
}
@Override
public BufferedImage filter(BufferedImage src, Struct parameters) throws PageException {BufferedImage dst=ImageUtil.createBufferedImage(src);
Object o;
if((o=parameters.removeEL(KeyImpl.init("Fuzziness")))!=null)setFuzziness(ImageFilterUtil.toFloatValue(o,"Fuzziness"));
if((o=parameters.removeEL(KeyImpl.init("EdgeThickness")))!=null)setEdgeThickness(ImageFilterUtil.toFloatValue(o,"EdgeThickness"));
if((o=parameters.removeEL(KeyImpl.init("FadeEdges")))!=null)setFadeEdges(ImageFilterUtil.toBooleanValue(o,"FadeEdges"));
if((o=parameters.removeEL(KeyImpl.init("EdgeColor")))!=null)setEdgeColor(ImageFilterUtil.toColorRGB(o,"EdgeColor"));
if((o=parameters.removeEL(KeyImpl.init("Colormap")))!=null)setColormap(ImageFilterUtil.toColormap(o,"Colormap"));
if((o=parameters.removeEL(KeyImpl.init("Amount")))!=null)setAmount(ImageFilterUtil.toFloatValue(o,"Amount"));
if((o=parameters.removeEL(KeyImpl.init("Turbulence")))!=null)setTurbulence(ImageFilterUtil.toFloatValue(o,"Turbulence"));
if((o=parameters.removeEL(KeyImpl.init("Stretch")))!=null)setStretch(ImageFilterUtil.toFloatValue(o,"Stretch"));
if((o=parameters.removeEL(KeyImpl.init("Angle")))!=null)setAngle(ImageFilterUtil.toFloatValue(o,"Angle"));
if((o=parameters.removeEL(KeyImpl.init("AngleCoefficient")))!=null)setAngleCoefficient(ImageFilterUtil.toFloatValue(o,"AngleCoefficient"));
if((o=parameters.removeEL(KeyImpl.init("GradientCoefficient")))!=null)setGradientCoefficient(ImageFilterUtil.toFloatValue(o,"GradientCoefficient"));
if((o=parameters.removeEL(KeyImpl.init("F1")))!=null)setF1(ImageFilterUtil.toFloatValue(o,"F1"));
if((o=parameters.removeEL(KeyImpl.init("F2")))!=null)setF2(ImageFilterUtil.toFloatValue(o,"F2"));
if((o=parameters.removeEL(KeyImpl.init("F3")))!=null)setF3(ImageFilterUtil.toFloatValue(o,"F3"));
if((o=parameters.removeEL(KeyImpl.init("F4")))!=null)setF4(ImageFilterUtil.toFloatValue(o,"F4"));
if((o=parameters.removeEL(KeyImpl.init("Randomness")))!=null)setRandomness(ImageFilterUtil.toFloatValue(o,"Randomness"));
if((o=parameters.removeEL(KeyImpl.init("GridType")))!=null)setGridType(ImageFilterUtil.toString(o,"GridType"));
if((o=parameters.removeEL(KeyImpl.init("DistancePower")))!=null)setDistancePower(ImageFilterUtil.toFloatValue(o,"DistancePower"));
if((o=parameters.removeEL(KeyImpl.init("Scale")))!=null)setScale(ImageFilterUtil.toFloatValue(o,"Scale"));
// check for arguments not supported
if(parameters.size()>0) {
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]");
}
return filter(src, dst);
}
}