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/**
* @(#) gearsOffScreen2Tga.java
* @(#) author: Brian Paul (converted to Java by Ron Cemer and Sven Goethel)
*
* This version is equal to Brian Paul's version 1.2 1999/10/21
*/
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
import java.lang.*;
import java.util.*;
import java.io.*;
import gl4java.*;
import gl4java.drawable.*;
import gl4java.awt.*;
import gl4java.utils.textures.*;
public class gearsOffScreen2Tga
{
GLOffScreenDrawable canvas;
public void snapshot()
{
canvas = new GLOffScreenDrawable(new Dimension(400,400));
gearRenderer gear = new gearRenderer(true);
canvas.addGLEventListener(gear);
canvas.initDrawable();
if(canvas.cvsIsInit())
{
canvas.repaint();
GLContext glj = canvas.getGLContext();
if( glj.gljMakeCurrent() )
{
TGATextureGrabber textgrab =
new TGATextureGrabber(canvas.getGL());
textgrab.grabPixels(
glj.isDoubleBuffer()?GLEnum.GL_BACK:GLEnum.GL_FRONT,
0, 0,
canvas.getSize().width,
canvas.getSize().height);
textgrab.write2File("gears.tga");
System.out.println("written gears.tga");
glj.gljCheckGL();
glj.gljFree();
}
}
}
public static void main( String args[] )
{
int i = 0;
String gljLib = null;
String glLib = null;
String gluLib = null;
GLContext.gljNativeDebug = false;
GLContext.gljClassDebug = false;
GLContext.gljThreadDebug = false;
while(args.length>i)
{
if(args[i].equals("-gljLib"))
{
i++;
if(args.length>i)
gljLib=args[i];
} else if(args[i].equals("-glLib"))
{
i++;
if(args.length>i)
glLib=args[i];
} else if(args[i].equals("-gluLib"))
{
i++;
if(args.length>i)
gluLib=args[i];
} else {
System.out.println("illegal arg "+i+": "+args[i]);
}
i++;
}
GLContext.doLoadNativeLibraries(gljLib, glLib, gluLib);
/**
* yes .. we need an AWT Frame,
* to let java get in touch with the underlying
* windowing system for initialisation !
*/
Frame mainFrame = new Frame("gears offscreen");
Dimension ps = new Dimension(20,20);
mainFrame.setBounds(-100,-100,99,99);
mainFrame.setVisible(true);
mainFrame.setVisible(false);
mainFrame.setVisible(true);
Insets is = mainFrame.getInsets();
mainFrame.setBounds(0,0,
ps.width+is.left+is.right,
ps.height+is.top+is.bottom);
mainFrame.setVisible(true);
gearsOffScreen2Tga applet = new gearsOffScreen2Tga();
applet.snapshot();
mainFrame.dispose();
System.exit(0);
}
}
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