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package demos.es1;
import java.nio.*;
import javax.media.opengl.*;
import javax.media.opengl.util.*;
import javax.media.opengl.glu.*;
import com.sun.javafx.newt.*;
public class RedSquare implements MouseListener, GLEventListener {
private GLWindow window;
private GLU glu;
private boolean quit = false;
private long startTime;
private long curTime;
public void mouseClicked(MouseEvent e) {
System.out.println("mouseevent: "+e);
switch(e.getClickCount()) {
case 1:
window.setFullscreen(!window.isFullscreen());
break;
default:
quit=true;
break;
}
}
public void mouseEntered(MouseEvent e) {
}
public void mouseExited(MouseEvent e) {
}
public void mousePressed(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
}
public void mouseMoved(MouseEvent e) {
}
public void mouseDragged(MouseEvent e) {
}
private void run(int type) {
int width = 800;
int height = 480;
System.err.println("RedSquare.run()");
GLProfile.setProfileGL2ES1();
try {
Window nWindow = null;
if(0!=(type&USE_AWT)) {
Display nDisplay = NewtFactory.createDisplay(NewtFactory.AWT, null); // local display
Screen nScreen = NewtFactory.createScreen(NewtFactory.AWT, nDisplay, 0); // screen 0
nWindow = NewtFactory.createWindow(NewtFactory.AWT, nScreen, 0); // dummy VisualID
}
GLCapabilities caps = new GLCapabilities();
// For emulation library, use 16 bpp
caps.setRedBits(5);
caps.setGreenBits(6);
caps.setBlueBits(5);
caps.setDepthBits(16);
window = GLWindow.create(nWindow, caps);
window.addMouseListener(this);
window.addGLEventListener(this);
// Size OpenGL to Video Surface
window.setSize(width, height);
window.setFullscreen(true);
window.setVisible(true);
startTime = System.currentTimeMillis();
while (!quit && ((curTime = System.currentTimeMillis()) - startTime) < 20000) {
window.display();
}
// Shut things down cooperatively
window.close();
window.getFactory().shutdown();
System.out.println("RedSquare shut down cleanly.");
} catch (Throwable t) {
t.printStackTrace();
}
}
// FIXME: we must add storage of the pointers in the GL state to
// the GLImpl classes. The need for this can be seen by making
// these variables method local instead of instance members. The
// square will disappear after a second or so due to garbage
// collection. On desktop OpenGL this implies a stack of
// references due to the existence of glPush/PopClientAttrib. On
// OpenGL ES 1/2 it can simply be one set of references.
private FloatBuffer colors;
private FloatBuffer vertices;
public void init(GLAutoDrawable drawable) {
GL2ES1 gl = drawable.getGL().getGL2ES1();
glu = GLU.createGLU();
System.err.println("Entering initialization");
System.err.println("GL_VERSION=" + gl.glGetString(GL2ES1.GL_VERSION));
System.err.println("GL_EXTENSIONS:");
System.err.println(" " + gl.glGetString(GL2ES1.GL_EXTENSIONS));
// Allocate vertex arrays
colors = BufferUtil.newFloatBuffer(16);
vertices = BufferUtil.newFloatBuffer(12);
// Fill them up
colors.put( 0, 1); colors.put( 1, 0); colors.put( 2, 0); colors.put( 3, 1);
colors.put( 4, 1); colors.put( 5, 0); colors.put( 6, 0); colors.put( 7, 1);
colors.put( 8, 1); colors.put( 9, 0); colors.put(10, 0); colors.put(11, 1);
colors.put(12, 1); colors.put(13, 0); colors.put(14, 0); colors.put(15, 1);
vertices.put(0, -2); vertices.put( 1, 2); vertices.put( 2, 0);
vertices.put(3, 2); vertices.put( 4, 2); vertices.put( 5, 0);
vertices.put(6, -2); vertices.put( 7, -2); vertices.put( 8, 0);
vertices.put(9, 2); vertices.put(10, -2); vertices.put(11, 0);
gl.glEnableClientState(GL2ES1.GL_VERTEX_ARRAY);
gl.glVertexPointer(3, GL2ES1.GL_FLOAT, 0, vertices);
gl.glEnableClientState(GL2ES1.GL_COLOR_ARRAY);
gl.glColorPointer(4, GL2ES1.GL_FLOAT, 0, colors);
// OpenGL Render Settings
gl.glClearColor(0, 0, 0, 1);
gl.glEnable(GL2ES1.GL_DEPTH_TEST);
}
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
GL2ES1 gl = drawable.getGL().getGL2ES1();
// Set location in front of camera
gl.glMatrixMode(GL2ES1.GL_PROJECTION);
gl.glLoadIdentity();
glu.gluPerspective(45.0f, (float)width / (float)height, 1.0f, 100.0f);
}
public void display(GLAutoDrawable drawable) {
GL2ES1 gl = drawable.getGL().getGL2ES1();
gl.glClear(GL2ES1.GL_COLOR_BUFFER_BIT | GL2ES1.GL_DEPTH_BUFFER_BIT);
// One rotation every four seconds
gl.glMatrixMode(GL2ES1.GL_MODELVIEW);
gl.glLoadIdentity();
gl.glTranslatef(0, 0, -10);
float ang = ((float) (curTime - startTime) * 360.0f) / 4000.0f;
gl.glRotatef(ang, 0, 0, 1);
// Draw a square
gl.glDrawArrays(GL2ES1.GL_TRIANGLE_STRIP, 0, 4);
}
public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {
}
public static int USE_NEWT = 0;
public static int USE_AWT = 1 << 0;
public static void main(String[] args) {
int type = USE_NEWT ;
for(int i=args.length-1; i>=0; i--) {
if(args[i].equals("-awt")) {
type |= USE_AWT;
}
}
new RedSquare().run(type);
System.exit(0);
}
}
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