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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.lw3d;
import java.awt.Image;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Vector;
import javax.vecmath.Color3f;
import javax.vecmath.Vector3f;
import com.sun.j3d.internal.J3dUtilsI18N;
import com.sun.j3d.loaders.IncorrectFormatException;
import com.sun.j3d.loaders.ParsingErrorException;
/**
* This class is responsible for retrieving the surface parameters for a
* particular surface from a binary Object file and turning that data
* into Java3D data. These surface parameters include
* diffuse/specular/emissive properties, color, shininess, transparency,
* and textures. For textures, this class instantiates a LwoTexture object
* to parse that data and turn it into Java3D texture data.
*/
class LwoSurface extends ParserObject {
LWOBFileReader theReader;
int red = 255, green = 255, blue = 255;
float diffuse = 0.0f, specular = 0.0f, transparency = 0.0f, luminosity = 0.0f;
float creaseAngle = 0.0f;
int gloss = 128;
Color3f color, diffuseColor, specularColor, emissiveColor;
float shininess;
Image theImage = null;
Vector3f textureCenter = null, textureSize = null;
int textureAxis;
String surfName;
Vector textureList = new Vector();
/**
* Constructor that parses surface data from the binary file
* and creates the necessary Java3d objects
*/
LwoSurface(LWOBFileReader reader, int length, int debugVals)
throws FileNotFoundException {
super(debugVals);
debugOutputLn(TRACE, "LwoSurface()");
theReader = reader;
getSurf(length);
setJ3dColors();
}
/**
* Creates Java3d color objects from the lw3d surface data
*/
void setJ3dColors() {
color = new Color3f((float)red/(float)255,
(float)green/(float)255,
(float)blue/(float)255);
diffuseColor = new Color3f(diffuse*color.x,
diffuse*color.y,
diffuse*color.z);
specularColor = new Color3f(specular*color.x,
specular*color.y,
specular*color.z);
emissiveColor = new Color3f(luminosity*color.x,
luminosity*color.y,
luminosity*color.z);
shininess = (float)(128.0 * ((float)gloss/1024.0));
}
Color3f getColor() {
return color;
}
Color3f getDiffuseColor() {
return diffuseColor;
}
Color3f getSpecularColor() {
return specularColor;
}
Color3f getEmissiveColor() {
return emissiveColor;
}
float getShininess() {
return shininess;
}
float getCreaseAngle() {
return creaseAngle;
}
/**
* Returns the LwoTexture for the surface, if any is defined. Note that
* lw3d allows users to define multiple textures for any surface, which
* is not possible through Java3d. Therefore, we just grab the first
* texture in any list of textures for a surface
*/
LwoTexture getTexture() {
debugOutputLn(TRACE, "getTexture()");
try {
if (textureList.isEmpty()) {
return null;
}
else {
return (LwoTexture)textureList.elementAt(0);
}
}
catch (ArrayIndexOutOfBoundsException e) {
debugOutputLn(EXCEPTION,
"getTexture(), exception returning first element: " + e);
return null;
}
}
String getSurfName() {
return surfName;
}
float getTransparency() {
return transparency;
}
/**
* Parses the binary file and gets all data for this surface
*/
void getSurf(int length)
throws FileNotFoundException, IncorrectFormatException,
ParsingErrorException {
debugOutputLn(TRACE, "getSurf()");
// These "got*" booleans are to help use read the best version of
// the data - the float values for these parameters should take
// precedence over the other format
boolean gotLuminosityFloat = false;
boolean gotTransparencyFloat = false;
boolean gotDiffuseFloat = false;
boolean gotSpecularFloat = false;
int surfStopMarker = theReader.getMarker() + length;
surfName = theReader.getString();
String tokenString = theReader.getToken();
while (!(tokenString == null) &&
theReader.getMarker() < surfStopMarker) {
debugOutputLn(VALUES, " tokenString = " + tokenString);
debugOutputLn(VALUES, " marker, stop = " +
theReader.getMarker() + ", " + surfStopMarker);
String textureToken = null;
int fieldLength = theReader.getShortInt();
debugOutputLn(VALUES, " fl = " + fieldLength);
if (tokenString.equals("COLR")) {
debugOutputLn(LINE_TRACE, " COLR");
try {
red = theReader.read();
green = theReader.read();
blue = theReader.read();
theReader.read();
}
catch (IOException e) {
throw new ParsingErrorException(e.getMessage());
}
if (fieldLength != 4)
throw new IncorrectFormatException(
J3dUtilsI18N.getString("LwoSurface0"));
}
else if (tokenString.equals("FLAG")) {
debugOutputLn(LINE_TRACE, " FLAG");
theReader.skipLength(fieldLength);
}
else if (tokenString.equals("VLUM")) {
debugOutputLn(LINE_TRACE, " VLUM");
luminosity = theReader.getFloat();
gotLuminosityFloat = true;
}
else if (tokenString.equals("LUMI")) {
debugOutputLn(LINE_TRACE, " LUMI");
if (gotLuminosityFloat)
theReader.skipLength(fieldLength);
else
luminosity = (float)(theReader.getShortInt())/255;
}
else if (tokenString.equals("VDIF")) {
debugOutputLn(LINE_TRACE, " VDIF");
if (fieldLength != 4)
throw new IncorrectFormatException("VDIF problem");
diffuse = theReader.getFloat();
gotDiffuseFloat = true;
debugOutputLn(VALUES, "diff = " + diffuse);
}
else if (tokenString.equals("DIFF")) {
debugOutputLn(LINE_TRACE, " DIFF");
if (gotDiffuseFloat)
theReader.skipLength(fieldLength);
else
diffuse = (float)theReader.getShortInt()/255;
}
else if (tokenString.equals("VTRN")) {
debugOutputLn(LINE_TRACE, " VTRN");
transparency = theReader.getFloat();
gotTransparencyFloat = true;
}
else if (tokenString.equals("TRAN")) {
debugOutputLn(LINE_TRACE, " TRAN");
if (gotTransparencyFloat)
theReader.skipLength(fieldLength);
else
transparency = (float)theReader.getShortInt()/255;
}
else if (tokenString.equals("VSPC")) {
debugOutputLn(LINE_TRACE, " VSPC");
specular = theReader.getFloat();
gotSpecularFloat = true;
debugOutputLn(VALUES, "spec = " + specular);
}
else if (tokenString.equals("SPEC")) {
debugOutputLn(LINE_TRACE, " SPEC");
if (gotSpecularFloat)
theReader.skipLength(fieldLength);
else {
if (fieldLength == 4) // Bug in some LW versions
specular = (float)theReader.getInt()/255;
else
specular = (float)theReader.getShortInt()/255;
}
}
else if (tokenString.equals("GLOS")) {
debugOutputLn(LINE_TRACE, " GLOS");
if (fieldLength == 4)
gloss = theReader.getInt();
else
gloss = theReader.getShortInt();
}
else if (tokenString.equals("SMAN")) {
debugOutputLn(LINE_TRACE, " SMAN");
creaseAngle = theReader.getFloat();
}
else if (tokenString.endsWith("TEX")) {
// Textures are complex - hand off this bit to the
// LwoTexture class
LwoTexture texture =
new LwoTexture(theReader,
surfStopMarker - theReader.getMarker(),
tokenString,
debugPrinter.getValidOutput());
textureToken = texture.getNextToken();
if (texture.isHandled())
textureList.addElement(texture);
debugOutputLn(WARNING, "val = " + tokenString);
}
else {
debugOutputLn(WARNING,
"unrecognized token: " + tokenString);
theReader.skipLength(fieldLength);
}
if (theReader.getMarker() < surfStopMarker) {
if (textureToken == null)
tokenString = theReader.getToken();
else
tokenString = textureToken;
}
}
}
}