package org.newdawn.slick.tests;
import java.nio.ByteOrder;
import org.newdawn.slick.AppGameContainer;
import org.newdawn.slick.BasicGame;
import org.newdawn.slick.Color;
import org.newdawn.slick.GameContainer;
import org.newdawn.slick.Graphics;
import org.newdawn.slick.Image;
import org.newdawn.slick.ImageBuffer;
import org.newdawn.slick.SlickException;
/**
* Quick test for endianess in image buffers
*
* @author thaaks
*/
public class ImageBufferEndianTest extends BasicGame {
/** The buffer filled with red pixels */
private ImageBuffer redImageBuffer;
/** The buffer filled with blue pixels */
private ImageBuffer blueImageBuffer;
/** The image created from red pixels */
private Image fromRed;
/** The image create from blue pixels */
private Image fromBlue;
/** The edian message */
private String endian;
/**
* Create a new test
*/
public ImageBufferEndianTest() {
super("ImageBuffer Endian Test");
}
/**
* Entry point to the test
*
* @param args The arguments passed into the test
*/
public static void main(String[] args) {
try {
AppGameContainer container = new AppGameContainer(new ImageBufferEndianTest());
container.setDisplayMode(800,600,false);
container.start();
} catch (SlickException e) {
e.printStackTrace();
}
}
/*
* (non-Javadoc)
* @see org.newdawn.slick.Game#render(org.newdawn.slick.GameContainer, org.newdawn.slick.Graphics)
*/
public void render(GameContainer container, Graphics g) throws SlickException {
g.setColor(Color.white);
g.drawString("Endianness is " + endian, 10, 100);
g.drawString("Image below should be red", 10, 200);
g.drawImage(fromRed, 10, 220);
g.drawString("Image below should be blue", 410, 200);
g.drawImage(fromBlue, 410, 220);
}
/*
* (non-Javadoc)
* @see org.newdawn.slick.BasicGame#init(org.newdawn.slick.GameContainer)
*/
public void init(GameContainer container) throws SlickException {
// detect what endian we have
if (ByteOrder.nativeOrder() == ByteOrder.BIG_ENDIAN) {
endian = "Big endian";
} else if (ByteOrder.nativeOrder() == ByteOrder.LITTLE_ENDIAN) {
endian = "Little endian";
} else
endian = "no idea";
redImageBuffer = new ImageBuffer(100,100);
fillImageBufferWithColor(redImageBuffer, Color.red, 100, 100);
blueImageBuffer = new ImageBuffer(100,100);
fillImageBufferWithColor(blueImageBuffer, Color.blue, 100, 100);
fromRed = redImageBuffer.getImage();
fromBlue = blueImageBuffer.getImage();
}
/**
* Fill a buffer with a given color
*
* @param buffer The buffer to fill
* @param c The color to apply
* @param width The width of the image
* @param height The height of the image
*/
private void fillImageBufferWithColor(ImageBuffer buffer, Color c, int width, int height) {
for (int x = 0; x < width; x++) {
for (int y = 0; y < height; y++) {
buffer.setRGBA(x, y, c.getRed(), c.getGreen(), c.getBlue(), c.getAlpha());
}
}
}
/*
* (non-Javadoc)
* @see org.newdawn.slick.BasicGame#update(org.newdawn.slick.GameContainer, int)
*/
public void update(GameContainer container, int delta) throws SlickException {
// nothing to do
}
}