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Commit 81d1248e authored by brutzman's avatar brutzman
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Tools/Authoring/PixelTextureGenerator.java 0 → 100644
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/*
* PixelTextureGenerator.java
* http://web.nps.navy.mil/~brutzman/Savage/Tools/Authoring/PixelTextureGenerator.java
* https://savage.nps.edu/Savage/Tools/Authoring/PixelTextureGenerator.java
* Created on June 10, 2004, 12:24 AM
* Modified on June 17, 2004, 1:46 AM
* Revised 24-26 January 2005, Don Brutzman
* Revised 23 February 2005, Don Brutzman
* Revised 4 January 2006, Don Brutzman
* Revised 3 January 2007, Don Brutzman
* Revised 10 N0vember 2018, Don Brutzman
*/
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
/**
*
* @author Louis Gutierrez
* @author Don Brutzman
* References:
* http://java.sun.com/j2se/1.4.2/docs/api/java/awt/image/PixelGrabber.html
* http://www.geocities.com/marcoschmidt.geo/java-image-file-code-examples.html
*/
public class PixelTextureGenerator extends Frame
{
private Image image;
private File outputFile;
private FileWriter out;
private int height, width;
private String outputFilename;
static String UsageMessage = "usage: java PixelTextureGenerator imageName.ext [outputSceneName.x3d]";
public PixelTextureGenerator(String imageFilename, String pOutputFilename) throws IOException
{
try
{
String name = "";
Toolkit toolkit = Toolkit.getDefaultToolkit();
image = toolkit.getImage(imageFilename);
MediaTracker mediaTracker = new MediaTracker(this);
mediaTracker.addImage(image, 0);
try
{
mediaTracker.waitForID(0); //makes sure image loads
}
catch (InterruptedException ie)
{
System.err.println(ie);
System.exit(1);
}
//string manipulation for output file and header
name = imageFilename.substring(imageFilename.lastIndexOf("\\")+1,imageFilename.lastIndexOf("."));
if (pOutputFilename.length() == 0)
{
outputFilename = name + "PixelTexture.x3d";
}
else outputFilename = pOutputFilename;
// System.out.println ("[outputFilename=" + outputFilename + "]");
System.out.print ("..");
outputFile = new File( outputFilename );
out = new FileWriter( outputFile );
System.out.print (".");
width = image.getWidth (null);
height = image.getHeight(null);
header(outputFilename, imageFilename, width, height);
handlePixels(image, 0, 0, width, height);
footer(width, height);
System.out.println ("created " + outputFile);
}
catch (Exception e)
{
System.err.println(e);
System.exit(1);
}
}
/**
* This method uses pixelGrabber to grab pixels from an image and then each pixel is
* manipulated into a hex string and written to file.
*/
public void handlePixels(Image img, int x, int y, int imageWidth, int imageHeight) throws IOException
{
try
{
out.write(imageWidth + " " + imageHeight + " " + "3 "); //default is 256*256*256 colors
out.write("\n");
int[] pixels = new int[imageWidth * imageHeight]; //array of pixels to grab
PixelGrabber pg = new PixelGrabber(img, x, y, imageWidth, imageHeight, pixels, 0, imageWidth);
try {
pg.grabPixels();
} catch (InterruptedException e) {
System.err.println("[Error] interrupted waiting for pixels!");
return;
}
if ((pg.getStatus() & ImageObserver.ABORT) != 0) {
System.err.println("[Error] image fetch abort or error");
return;
}
//cycles through the array of pixels
// SFImage: Pixels are specified from left to right, bottom to top
// for (int j = 0; j < imageHeight; j++) {
for (int j = imageHeight - 1; j >= 0; j--) {
for (int i = 0; i < imageWidth; i++) {
handleSinglePixel(x+i, y+j, pixels[j * imageWidth + i]);
}
// break long lines of pixels for countability and to help some parsers/editors
out.write("\n");
}
out.flush();
}
catch (Exception e)
{
System.err.println (e);
}
}
/**
* This method translates the integer value passed by pixeGrabber into
* alpha, red, green, and blue. It then converts these integers to a hex
* string.
*/
public void handleSinglePixel(int x, int y, int pixel) throws IOException{
//translates pixel integer
int alpha = (pixel >> 24) & 0xff;
int red = (pixel >> 16) & 0xff;
int green = (pixel >> 8) & 0xff;
int blue = (pixel ) & 0xff;
//converts to hex
hexConverter(red,green, blue);
}
/**
* This method produces a string that represents a 6 digit hex value
* and writes it to file.
*/
public void hexConverter(int r,int g,int b) throws IOException{
String temp = "0x";
temp += hexCase(r/16);
temp += hexCase(r%16);
temp += hexCase(g/16);
temp += hexCase(g%16);
temp += hexCase(b/16);
temp += hexCase(b%16);
//writes hex value to file
out.write(temp + " ");
}
/**
* pThis method simply changes standard form into hex
*/
public char hexCase(int c) {
char out='Z';
switch (c) {
case 0: out = '0'; break;
case 1: out = '1'; break;
case 2: out = '2'; break;
case 3: out = '3'; break;
case 4: out = '4'; break;
case 5: out = '5'; break;
case 6: out = '6'; break;
case 7: out = '7'; break;
case 8: out = '8'; break;
case 9: out = '9'; break;
case 10: out = 'A'; break;
case 11: out = 'B'; break;
case 12: out = 'C'; break;
case 13: out = 'D'; break;
case 14: out = 'E'; break;
case 15: out = 'F'; break;
default: System.out.println("incorrect color value");
}
return out;
}
/**
* This method writes the header information to file
*/
public void header(String outputFileName, String imageFilename, int x, int y) throws IOException{
out.write("<?xml version='1.0' encoding='UTF-8'?>\n");
// final DOCTYPE
out.write("<!DOCTYPE X3D PUBLIC \"ISO//Web3D//DTD X3D 3.1//EN\" \"http://www.web3d.org/specifications/x3d-3.1.dtd\">\n");
out.write("<X3D version='3.1' profile='Interactive'\n");
out.write(" xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation='http://www.web3d.org/specifications/x3d-3.0.xsd'>\n");
out.write(" <head>\n");
out.write(" <meta content='" + outputFileName + "' name='title'/>\n");
out.write(" <meta content='" + imageFilename + "' name='image'/>\n");
out.write(" <meta content='Image converted from binary format into an X3D PixelTexture.' name='description'/>\n");
out.write(" <!-- edit default meta tag entries to document this converted scene -->\n");
out.write(" <meta content='*enter name of original author here*' name='creator'/>\n");
out.write(" <meta content='*if manually translating image-to-X3D, enter name of person translating here*' name='translator'/>\n");
out.write(" <meta content='*enter date*' name='created'/>\n");
out.write(" <meta content='*enter date*' name='translated'/>\n");
out.write(" <meta content='*enter date*' name='modified'/>\n");
out.write(" <meta content='*enter version here, if any*' name='version'/>\n");
out.write(" <meta content='*enter reference citation or relative/online url here*' name='reference'/>\n");
out.write(" <meta content='*enter additional url/bibliographic reference information here*' name='reference'/>\n");
out.write(" <meta content='*enter copyright information here* Example: Copyright (c) Web3D Consortium Inc. 2002*' name='rights'/>\n");
out.write(" <meta content='*enter drawing filename/url here*' name='drawing'/>\n");
out.write(" <meta content='*enter image filename/url here*' name='image'/>\n");
out.write(" <meta content='*enter photo filename/url here*' name='photo'/>\n");
out.write(" <meta content='*enter subject keywords here*' name='subject'/>\n");
out.write(" <meta content='*enter permission statements or url here*' name='permissions'/>\n");
out.write(" <meta content='*insert any known warnings, bugs or errors here*' name='warning'/>\n");
out.write(" <meta content='http://*enter online url address for this file here*/" + outputFileName + "' name='identifier'/>\n");
out.write(" <meta content='http://web.nps.navy.mil/~brutzman/Savage/Tools/Authoring/PixelTextureGenerator.java' name='generator'/>\n");
out.write(" <meta content='http://java.sun.com/j2se/1.4.2/docs/api/java/awt/image/PixelGrabber.html' name='reference'/>\n");
out.write(" <meta content='http://www.web3d.org/x3d/specifications/ISO-IEC-19775-IS-X3DAbstractSpecification/Part01/fieldsDef.html#SFImage' name='reference'/>\n");
out.write(" <meta content='http://www.web3d.org/x3d/specifications/ISO-IEC-19775-IS-X3DAbstractSpecification/Part01/components/texturing.html#Texturecoordinates' name='reference'/>\n");
out.write(" <meta content='http://www.web3d.org/x3d/specifications/ISO-IEC-19775-IS-X3DAbstractSpecification/Part01/components/texturing.html#PixelTexture' name='reference'/>\n");
out.write(" <meta content='http://www.web3d.org/x3d/content/examples/Vrml2.0Sourcebook/Chapter17-Textures/_pages/page13.html' name='reference'/>\n");
out.write(" </head>\n");
out.write(" <Scene>\n");
out.write(" <Viewpoint position='0 0 1.5' description='PixelTexture version of image " + imageFilename + "'/>\n");
out.write(" <!-- Apply the possibly non-square image to square geometry, then scale geometry to match original image aspect ratio -->\n");
out.write(" <Transform translation='-0.5 " + (-0.5 * ((float)y / (float)x)) + " 0' " +
"scale='1 " + ((float)y / (float)x) + " 1'>\n");
out.write(" <Anchor url='" + imageFilename + "' description='Click to view original image " + imageFilename + "' parameter='target=_blank'>\n");
out.write(" <Shape>\n");
out.write(" <!-- double-sided texture since solid='false' -->\n");
out.write(" <IndexedFaceSet coordIndex='0 1 2 3' ccw='true' solid='false'>\n");
out.write(" <Coordinate point='0 0 0, 1 0 0, 1 1 0, 0 1 0'/>\n");
out.write(" </IndexedFaceSet>\n");
out.write(" <Appearance>\n");
out.write(" <Material diffuseColor='0.7 0.7 0.7'/>\n");
out.write(" <PixelTexture image='");
out.flush();
}
/**
* public void footer(int x, int y) throws IOException
* This method writes the footer information to file
*/
public void footer(int x, int y) throws IOException{
out.write("'/>\n");
out.write(" </Appearance>\n");
out.write(" </Shape>\n");
out.write(" </Anchor>\n");
out.write(" </Transform>\n");
out.write(" </Scene>\n");
out.write("</X3D>\n");
out.flush();
}
/**
* public void closeFile() throws IOException
* This method closes the output file
*/
public void closeFile() throws IOException{
out.flush();
out.close();
System.exit(0);
}
public static void main(String[] args) throws IOException
{
if ((args!= null) && (args.length == 1))
{
PixelTextureGenerator gen = new PixelTextureGenerator(args[0], new String(""));
}
else if ((args!= null) && (args.length == 2))
{
PixelTextureGenerator gen = new PixelTextureGenerator(args[0], args[1]);
}
else
{
System.out.println (UsageMessage);
System.exit (-1);
}
}
}
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