1 /* 2 * Copyright (c) 2009-2010 jMonkeyEngine 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 package com.jme3.font; 33 34 import com.jme3.material.Material; 35 import com.jme3.scene.Geometry; 36 import com.jme3.scene.Mesh; 37 import com.jme3.scene.VertexBuffer; 38 import com.jme3.scene.VertexBuffer.Type; 39 import com.jme3.texture.Texture2D; 40 import com.jme3.util.BufferUtils; 41 import java.nio.ByteBuffer; 42 import java.nio.FloatBuffer; 43 import java.nio.ShortBuffer; 44 import java.util.LinkedList; 45 46 /** 47 * One page per BitmapText Font Texture. 48 * @author Lim, YongHoon 49 */ 50 class BitmapTextPage extends Geometry { 51 52 private final float[] pos; 53 private final float[] tc; 54 private final short[] idx; 55 private final byte[] color; 56 private final int page; 57 private final Texture2D texture; 58 private final LinkedList<LetterQuad> pageQuads = new LinkedList<LetterQuad>(); 59 BitmapTextPage(BitmapFont font, boolean arrayBased, int page)60 BitmapTextPage(BitmapFont font, boolean arrayBased, int page) { 61 super("BitmapFont", new Mesh()); 62 63 if (font == null) { 64 throw new NullPointerException("'font' cannot be null."); 65 } 66 67 this.page = page; 68 69 Material mat = font.getPage(page); 70 if (mat == null) { 71 throw new IllegalStateException("The font's texture was not found!"); 72 } 73 74 setMaterial(mat); 75 this.texture = (Texture2D) mat.getTextureParam("ColorMap").getTextureValue(); 76 77 // initialize buffers 78 Mesh m = getMesh(); 79 m.setBuffer(Type.Position, 3, new float[0]); 80 m.setBuffer(Type.TexCoord, 2, new float[0]); 81 m.setBuffer(Type.Color, 4, new byte[0]); 82 m.setBuffer(Type.Index, 3, new short[0]); 83 84 // scale colors from 0 - 255 range into 0 - 1 85 m.getBuffer(Type.Color).setNormalized(true); 86 87 arrayBased = true; 88 89 if (arrayBased) { 90 pos = new float[4 * 3]; // 4 verticies * 3 floats 91 tc = new float[4 * 2]; // 4 verticies * 2 floats 92 idx = new short[2 * 3]; // 2 triangles * 3 indices 93 color = new byte[4 * 4]; // 4 verticies * 4 bytes 94 } else { 95 pos = null; 96 tc = null; 97 idx = null; 98 color = null; 99 } 100 } 101 BitmapTextPage(BitmapFont font, boolean arrayBased)102 BitmapTextPage(BitmapFont font, boolean arrayBased) { 103 this(font, arrayBased, 0); 104 } 105 BitmapTextPage(BitmapFont font)106 BitmapTextPage(BitmapFont font) { 107 this(font, false, 0); 108 } 109 getTexture()110 Texture2D getTexture() { 111 return texture; 112 } 113 114 @Override clone()115 public BitmapTextPage clone() { 116 BitmapTextPage clone = (BitmapTextPage) super.clone(); 117 clone.mesh = mesh.deepClone(); 118 return clone; 119 } 120 assemble(Letters quads)121 void assemble(Letters quads) { 122 pageQuads.clear(); 123 quads.rewind(); 124 125 while (quads.nextCharacter()) { 126 if (quads.isPrintable()) { 127 if (quads.getCharacterSetPage() == page) { 128 pageQuads.add(quads.getQuad()); 129 } 130 } 131 } 132 133 Mesh m = getMesh(); 134 int vertCount = pageQuads.size() * 4; 135 int triCount = pageQuads.size() * 2; 136 137 VertexBuffer pb = m.getBuffer(Type.Position); 138 VertexBuffer tb = m.getBuffer(Type.TexCoord); 139 VertexBuffer ib = m.getBuffer(Type.Index); 140 VertexBuffer cb = m.getBuffer(Type.Color); 141 142 FloatBuffer fpb = (FloatBuffer) pb.getData(); 143 FloatBuffer ftb = (FloatBuffer) tb.getData(); 144 ShortBuffer sib = (ShortBuffer) ib.getData(); 145 ByteBuffer bcb = (ByteBuffer) cb.getData(); 146 147 // increase capacity of buffers as needed 148 fpb.rewind(); 149 fpb = BufferUtils.ensureLargeEnough(fpb, vertCount * 3); 150 fpb.limit(vertCount * 3); 151 pb.updateData(fpb); 152 153 ftb.rewind(); 154 ftb = BufferUtils.ensureLargeEnough(ftb, vertCount * 2); 155 ftb.limit(vertCount * 2); 156 tb.updateData(ftb); 157 158 bcb.rewind(); 159 bcb = BufferUtils.ensureLargeEnough(bcb, vertCount * 4); 160 bcb.limit(vertCount * 4); 161 cb.updateData(bcb); 162 163 sib.rewind(); 164 sib = BufferUtils.ensureLargeEnough(sib, triCount * 3); 165 sib.limit(triCount * 3); 166 ib.updateData(sib); 167 168 m.updateCounts(); 169 170 // go for each quad and append it to the buffers 171 if (pos != null) { 172 for (int i = 0; i < pageQuads.size(); i++) { 173 LetterQuad fq = pageQuads.get(i); 174 fq.storeToArrays(pos, tc, idx, color, i); 175 fpb.put(pos); 176 ftb.put(tc); 177 sib.put(idx); 178 bcb.put(color); 179 } 180 } else { 181 for (int i = 0; i < pageQuads.size(); i++) { 182 LetterQuad fq = pageQuads.get(i); 183 fq.appendPositions(fpb); 184 fq.appendTexCoords(ftb); 185 fq.appendIndices(sib, i); 186 fq.appendColors(bcb); 187 } 188 } 189 190 fpb.rewind(); 191 ftb.rewind(); 192 sib.rewind(); 193 bcb.rewind(); 194 195 updateModelBound(); 196 } 197 } 198