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/*
* Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any
* kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
* EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
* NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
* USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
* ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
* CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
* REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
* INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or
* intended for use in the design, construction, operation or
* maintenance of any nuclear facility.
*
*/
package com.sun.j3d.loaders.objectfile;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.StringReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import javax.media.j3d.Appearance;
import javax.media.j3d.GeometryArray;
import javax.media.j3d.Material;
import javax.media.j3d.Shape3D;
import javax.media.j3d.TexCoordGeneration;
import javax.media.j3d.Texture2D;
import javax.media.j3d.TransparencyAttributes;
import javax.vecmath.Color3f;
import com.sun.j3d.loaders.ParsingErrorException;
import com.sun.j3d.utils.image.ImageException;
import com.sun.j3d.utils.image.TextureLoader;
class ObjectFileMaterials implements ImageObserver {
// DEBUG
// 1 = Name of materials
// 16 = Tokens
private static final int DEBUG = 0;
private String curName = null;
private ObjectFileMaterial cur = null;
private HashMap materials; // key=String name of material
// value=ObjectFileMaterial
private String basePath;
private boolean fromUrl;
private class ObjectFileMaterial {
public Color3f Ka;
public Color3f Kd;
public Color3f Ks;
public int illum;
public float Ns;
public Texture2D t;
public boolean transparent;
public float transparencyLevel;
}
void assignMaterial(String matName, Shape3D shape) {
ObjectFileMaterial p = null;
if ((DEBUG & 1) != 0) System.out.println("Color " + matName);
Material m = new Material();
p = (ObjectFileMaterial)materials.get(matName);
Appearance a = new Appearance();
if (p != null) {
// Set ambient & diffuse color
if (p.Ka != null) m.setAmbientColor(p.Ka);
if (p.Kd != null) m.setDiffuseColor(p.Kd);
// Set specular color
if ((p.Ks != null) && (p.illum != 1)) m.setSpecularColor(p.Ks);
else if (p.illum == 1) m.setSpecularColor(0.0f, 0.0f, 0.0f);
if (p.illum >= 1) m.setLightingEnable(true);
else if (p.illum == 0) m.setLightingEnable(false);
if (p.Ns != -1.0f) m.setShininess(p.Ns);
if (p.t != null) {
a.setTexture(p.t);
// Create Texture Coordinates if not already present
if ((((GeometryArray)shape.getGeometry()).getVertexFormat() &
GeometryArray.TEXTURE_COORDINATE_2) == 0) {
TexCoordGeneration tcg = new TexCoordGeneration();
a.setTexCoordGeneration(tcg);
}
}
if (p.transparent)
a.setTransparencyAttributes(
new TransparencyAttributes(TransparencyAttributes.NICEST,
p.transparencyLevel));
}
a.setMaterial(m);
if ((DEBUG & 1) != 0) System.out.println(m);
shape.setAppearance(a);
} // End of assignMaterial
private void readName(ObjectFileParser st) throws ParsingErrorException {
st.getToken();
if (st.ttype == ObjectFileParser.TT_WORD) {
if (curName != null) materials.put(curName, cur);
curName = new String(st.sval);
cur = new ObjectFileMaterial();
}
st.skipToNextLine();
} // End of readName
private void readAmbient(ObjectFileParser st) throws ParsingErrorException {
Color3f p = new Color3f();
st.getNumber();
p.x = (float)st.nval;
st.getNumber();
p.y = (float)st.nval;
st.getNumber();
p.z = (float)st.nval;
cur.Ka = p;
st.skipToNextLine();
} // End of readAmbient
private void readDiffuse(ObjectFileParser st) throws ParsingErrorException {
Color3f p = new Color3f();
st.getNumber();
p.x = (float)st.nval;
st.getNumber();
p.y = (float)st.nval;
st.getNumber();
p.z = (float)st.nval;
cur.Kd = p;
st.skipToNextLine();
} // End of readDiffuse
private void readSpecular(ObjectFileParser st) throws ParsingErrorException {
Color3f p = new Color3f();
st.getNumber();
p.x = (float)st.nval;
st.getNumber();
p.y = (float)st.nval;
st.getNumber();
p.z = (float)st.nval;
cur.Ks = p;
st.skipToNextLine();
} // End of readSpecular
private void readIllum(ObjectFileParser st) throws ParsingErrorException {
st.getNumber();
cur.illum = (int)st.nval;
st.skipToNextLine();
} // End of readSpecular
private void readTransparency(ObjectFileParser st) throws ParsingErrorException {
st.getNumber();
cur.transparencyLevel = (float)st.nval;
if ( cur.transparencyLevel < 1.0f ){
cur.transparent = true;
}
st.skipToNextLine();
} // End of readTransparency
private void readShininess(ObjectFileParser st) throws ParsingErrorException {
float f;
st.getNumber();
cur.Ns = (float)st.nval;
if (cur.Ns < 1.0f) cur.Ns = 1.0f;
else if (cur.Ns > 128.0f) cur.Ns = 128.0f;
st.skipToNextLine();
} // End of readSpecular
public void readMapKd(ObjectFileParser st) {
// Filenames are case sensitive
st.lowerCaseMode(false);
// Get name of texture file (skip path)
String tFile = null;
do {
st.getToken();
if (st.ttype == ObjectFileParser.TT_WORD) tFile = st.sval;
} while (st.ttype != ObjectFileParser.TT_EOL);
st.lowerCaseMode(true);
if (tFile != null) {
// Check for filename with no extension
if (tFile.lastIndexOf('.') != -1) {
try {
// Convert filename to lower case for extension comparisons
String suffix =
tFile.substring(tFile.lastIndexOf('.') + 1).toLowerCase();
TextureLoader t = null;
if ((suffix.equals("int")) || (suffix.equals("inta")) ||
(suffix.equals("rgb")) || (suffix.equals("rgba")) ||
(suffix.equals("bw")) || (suffix.equals("sgi"))) {
RgbFile f;
if (fromUrl) {
f = new RgbFile(new URL(basePath + tFile).openStream());
} else {
f = new RgbFile(new FileInputStream(basePath + tFile));
}
BufferedImage bi = f.getImage();
boolean luminance = suffix.equals("int") || suffix.equals("inta");
boolean alpha = suffix.equals("inta") || suffix.equals("rgba");
cur.transparent = alpha;
String s = null;
if (luminance && alpha) s = "LUM8_ALPHA8";
else if (luminance) s = "LUMINANCE";
else if (alpha) s = "RGBA";
else s = "RGB";
t = new TextureLoader(bi, s, TextureLoader.GENERATE_MIPMAP);
} else {
// For all other file types, use the TextureLoader
if (fromUrl) {
t = new TextureLoader(new URL(basePath + tFile), "RGB",
TextureLoader.GENERATE_MIPMAP, null);
} else {
t = new TextureLoader(basePath + tFile, "RGB",
TextureLoader.GENERATE_MIPMAP, null);
}
}
Texture2D texture = (Texture2D)t.getTexture();
if (texture != null) cur.t = texture;
}
catch (FileNotFoundException e) {
// Texture won't get loaded if file can't be found
}
catch (MalformedURLException e) {
// Texture won't get loaded if file can't be found
}
catch (IOException e) {
// Texture won't get loaded if file can't be found
} // mcneillk: issue 639
catch (ImageException iex) {
// Texture won't get loaded if other problem
}
}
}
st.skipToNextLine();
} // End of readMapKd
private void readFile(ObjectFileParser st) throws ParsingErrorException {
int t;
st.getToken();
while (st.ttype != ObjectFileParser.TT_EOF) {
// Print out one token for each line
if ((DEBUG & 16) != 0) {
System.out.print("Token ");
if (st.ttype == ObjectFileParser.TT_EOL) System.out.println("EOL");
else if (st.ttype == ObjectFileParser.TT_WORD)
System.out.println(st.sval);
else System.out.println((char)st.ttype);
}
if (st.ttype == ObjectFileParser.TT_WORD) {
if (st.sval.equals("newmtl")) {
readName(st);
} else if (st.sval.equals("ka")) {
readAmbient(st);
} else if (st.sval.equals("kd")) {
readDiffuse(st);
} else if (st.sval.equals("ks")) {
readSpecular(st);
} else if (st.sval.equals("illum")) {
readIllum(st);
} else if (st.sval.equals("d")) {
readTransparency(st);
} else if (st.sval.equals("ns")) {
readShininess(st);
} else if (st.sval.equals("tf")) {
st.skipToNextLine();
} else if (st.sval.equals("sharpness")) {
st.skipToNextLine();
} else if (st.sval.equals("map_kd")) {
readMapKd(st);
} else if (st.sval.equals("map_ka")) {
st.skipToNextLine();
} else if (st.sval.equals("map_ks")) {
st.skipToNextLine();
} else if (st.sval.equals("map_ns")) {
st.skipToNextLine();
} else if (st.sval.equals("bump")) {
st.skipToNextLine();
}
}
st.skipToNextLine();
// Get next token
st.getToken();
}
if (curName != null) materials.put(curName, cur);
} // End of readFile
void readMaterialFile(boolean fromUrl, String basePath, String fileName)
throws ParsingErrorException {
Reader reader;
this.basePath = basePath;
this.fromUrl = fromUrl;
try {
if (fromUrl) {
reader = (Reader)
(new InputStreamReader(
new BufferedInputStream(
(new URL(basePath + fileName).openStream()))));
} else {
reader = new BufferedReader(new FileReader(basePath + fileName));
}
}
catch (IOException e) {
// couldn't find it - ignore mtllib
return;
}
if ((DEBUG & 1) != 0)
System.out.println("Material file: " + basePath + fileName);
ObjectFileParser st = new ObjectFileParser(reader);
readFile(st);
} // End of readMaterialFile
ObjectFileMaterials() throws ParsingErrorException {
Reader reader = new StringReader(DefaultMaterials.materials);
ObjectFileParser st = new ObjectFileParser(reader);
materials = new HashMap(50);
readFile(st);
} // End of ObjectFileMaterials
/**
* Implement the ImageObserver interface. Needed to load jpeg and gif
* files using the Toolkit.
*/
@Override
public boolean imageUpdate(Image img, int flags,
int x, int y, int w, int h) {
return (flags & (ALLBITS | ABORT)) == 0;
} // End of imageUpdate
} // End of class ObjectFileMaterials
// End of file ObjectFileMaterials.java