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/*
* Copyright (c) 2006 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 or intended for use
* in the design, construction, operation or maintenance of any nuclear
* facility.
*
* Sun gratefully acknowledges that this software was originally authored
* and developed by Kenneth Bradley Russell and Christopher John Kline.
*/
package demos.j2d;
import com.sun.opengl.util.awt.TextureRenderer;
import demos.gears.Gears;
import demos.util.SystemTime;
import demos.util.Time;
import gleem.linalg.Vec2f;
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.text.DecimalFormat;
import javax.media.opengl.GL;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLCapabilities;
import javax.media.opengl.GLEventListener;
import javax.media.opengl.GLProfile;
import javax.media.opengl.awt.GLCanvas;
import javax.media.opengl.glu.GLU;
import javax.media.opengl.util.Animator;
/** A simple test of the TextureRenderer utility class. Draws gears
underneath with moving Java 2D-rendered text on top. */
public class TestTextureRenderer implements GLEventListener {
public static void main(String[] args) {
Frame frame = new Frame("Java 2D Renderer Test");
GLCapabilities caps = new GLCapabilities();
caps.setAlphaBits(8);
GLProfile.setProfile("GL2");
GLCanvas canvas = new GLCanvas(caps);
canvas.addGLEventListener(new Gears());
canvas.addGLEventListener(new TestTextureRenderer());
frame.add(canvas);
frame.setSize(512, 512);
final Animator animator = new Animator(canvas);
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
// Run this on another thread than the AWT event queue to
// make sure the call to Animator.stop() completes before
// exiting
new Thread(new Runnable() {
public void run() {
animator.stop();
System.exit(0);
}
}).start();
}
});
frame.setVisible(true);
animator.start();
}
private TextureRenderer renderer;
private Time time;
private Font font;
private Color TRANSPARENT_BLACK = new Color(0.0f, 0.0f, 0.0f, 0.0f);
private Vec2f velocity = new Vec2f(100.0f, 150.0f);
private Vec2f position;
private Rectangle textBounds;
private Rectangle fpsBounds;
private String TEST_STRING = "Java 2D Text";
private GLU glu = new GLU();
private long startTime;
private int frameCount;
private DecimalFormat format = new DecimalFormat("####.00");
public void init(GLAutoDrawable drawable) {
GL gl = drawable.getGL();
gl.setSwapInterval(0);
renderer = new TextureRenderer(256, 256, true);
time = new SystemTime();
((SystemTime) time).rebase();
// Start the text half way up the left side
position = new Vec2f(0.0f, drawable.getHeight() / 2);
// Create the font, render context, and glyph vector
font = new Font("SansSerif", Font.BOLD, 36);
Graphics2D g2d = renderer.createGraphics();
g2d.setFont(font);
g2d.setComposite(AlphaComposite.Src);
FontRenderContext frc = g2d.getFontRenderContext();
GlyphVector gv = font.createGlyphVector(frc, TEST_STRING);
g2d.setColor(TRANSPARENT_BLACK);
g2d.fillRect(0, 0, renderer.getWidth(), renderer.getHeight());
g2d.setColor(Color.WHITE);
g2d.drawString(TEST_STRING, 10, 50);
textBounds = gv.getPixelBounds(frc, 10, 50);
renderer.markDirty(textBounds.x, textBounds.y, textBounds.width, textBounds.height);
}
public void display(GLAutoDrawable drawable) {
if (startTime == 0) {
startTime = System.currentTimeMillis();
}
if (++frameCount == 100) {
long endTime = System.currentTimeMillis();
float fps = 100.0f / (float) (endTime - startTime) * 1000;
frameCount = 0;
startTime = System.currentTimeMillis();
Graphics2D g2d = renderer.createGraphics();
g2d.setFont(font);
g2d.setComposite(AlphaComposite.Src);
FontRenderContext frc = g2d.getFontRenderContext();
String fpsString = "FPS: " + format.format(fps);
GlyphVector gv = font.createGlyphVector(frc, TEST_STRING);
fpsBounds = gv.getPixelBounds(frc, 10, 100);
g2d.setColor(TRANSPARENT_BLACK);
g2d.fillRect(fpsBounds.x, fpsBounds.y, fpsBounds.width, fpsBounds.height);
g2d.setColor(Color.WHITE);
g2d.drawString(fpsString, 10, 100);
renderer.markDirty(fpsBounds.x, fpsBounds.y, fpsBounds.width, fpsBounds.height);
}
time.update();
// Compute the next position of the text
position = position.plus(velocity.times((float) time.deltaT()));
// Figure out whether we have to switch directions
Rectangle tmpBounds = new Rectangle((int) position.x(), (int) position.y(),
textBounds.width, textBounds.height);
if (tmpBounds.getMinX() < 0) {
velocity.setX(Math.abs(velocity.x()));
} else if (tmpBounds.getMaxX() > drawable.getWidth()) {
velocity.setX(-1.0f * Math.abs(velocity.x()));
}
if (tmpBounds.getMinY() < 0) {
velocity.setY(Math.abs(velocity.y()));
} else if (tmpBounds.getMaxY() > drawable.getHeight()) {
velocity.setY(-1.0f * Math.abs(velocity.y()));
}
GL gl = drawable.getGL();
// Prepare to draw from the renderer's texture
renderer.beginOrthoRendering(drawable.getWidth(), drawable.getHeight());
// Draw from the renderer's texture
renderer.drawOrthoRect((int) position.x(), (int) position.y(),
textBounds.x,
renderer.getHeight() - textBounds.y - textBounds.height,
textBounds.width,
textBounds.height);
// If we have the FPS, draw it
if (fpsBounds != null) {
renderer.drawOrthoRect(drawable.getWidth() - fpsBounds.width,
20,
fpsBounds.x,
renderer.getHeight() - fpsBounds.y - fpsBounds.height,
fpsBounds.width,
fpsBounds.height);
}
// Clean up rendering
renderer.endOrthoRendering();
}
// Unused methods
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {}
public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {}
}
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