1 /** 2 * Copyright (c) 2011, Novyon Events 3 * 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * - Redistributions of source code must retain the above copyright notice, this 10 * list of conditions and the following disclaimer. 11 * 12 * - Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 25 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 26 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * @author Anthyon 29 */ 30 package com.jme3.terrain.noise.basis; 31 32 import java.nio.FloatBuffer; 33 import java.util.ArrayList; 34 import java.util.List; 35 36 import com.jme3.terrain.noise.Basis; 37 import com.jme3.terrain.noise.filter.AbstractFilter; 38 import com.jme3.terrain.noise.modulator.Modulator; 39 40 public class FilteredBasis extends AbstractFilter implements Basis { 41 42 private Basis basis; 43 private List<Modulator> modulators = new ArrayList<Modulator>(); 44 private float scale; 45 46 public FilteredBasis() {} 47 48 public FilteredBasis(Basis basis) { 49 this.basis = basis; 50 } 51 52 public Basis getBasis() { 53 return this.basis; 54 } 55 56 public void setBasis(Basis basis) { 57 this.basis = basis; 58 } 59 60 @Override 61 public FloatBuffer filter(float sx, float sy, float base, FloatBuffer data, int size) { 62 return data; 63 } 64 65 @Override 66 public void init() { 67 this.basis.init(); 68 } 69 70 @Override 71 public Basis setScale(float scale) { 72 this.scale = scale; 73 return this; 74 } 75 76 @Override 77 public float getScale() { 78 return this.scale; 79 } 80 81 @Override 82 public Basis addModulator(Modulator modulator) { 83 this.modulators.add(modulator); 84 return this; 85 } 86 87 @Override 88 public float value(float x, float y, float z) { 89 throw new UnsupportedOperationException( 90 "Method value cannot be called on FilteredBasis and its descendants. Use getBuffer instead!"); 91 } 92 93 @Override 94 public FloatBuffer getBuffer(float sx, float sy, float base, int size) { 95 int margin = this.getMargin(size, 0); 96 int workSize = size + 2 * margin; 97 FloatBuffer retval = this.basis.getBuffer(sx - margin, sy - margin, base, workSize); 98 return this.clip(this.doFilter(sx, sy, base, retval, workSize), workSize, size, margin); 99 } 100 101 public FloatBuffer clip(FloatBuffer buf, int origSize, int newSize, int offset) { 102 FloatBuffer result = FloatBuffer.allocate(newSize * newSize); 103 104 float[] orig = buf.array(); 105 for (int i = offset; i < offset + newSize; i++) { 106 result.put(orig, i * origSize + offset, newSize); 107 } 108 109 return result; 110 } 111 } 112
