Make sure all BufferedImages are compatible to current settings.

src/de/teamteamteam/spacescooter/Main.java

@@ -25,7 +25,7 @@ public class Main {
 	 * @param args Command line arguments.
 	 */
 	public static void main(String[] args) {
-		final GraphicsSettings gs = new GraphicsSettings(); // Get settings
+		final GraphicsSettings gs = GraphicsSettings.instance; // Get settings
 
 		// Initialize SuperScreen and add to GameFrame, so we can call doPaint()
 		// on it.

src/de/teamteamteam/spacescooter/utility/GraphicsSettings.java

@@ -1,8 +1,11 @@
 package de.teamteamteam.spacescooter.utility;
 
 import java.awt.DisplayMode;
+import java.awt.Graphics2D;
 import java.awt.GraphicsDevice;
 import java.awt.GraphicsEnvironment;
+import java.awt.image.BufferedImage;
+import java.awt.image.ColorModel;
 
 import de.teamteamteam.spacescooter.brain.GameConfig;
 
@@ -32,11 +35,30 @@ public class GraphicsSettings {
 	 */
 	private int bitDepth;
 	
+	/**
+	 * ScreenDevice this game is supposed to be run on.
+	 * Probably just the primary screen device.
+	 */
+	private GraphicsDevice screenDevice;
 	
 	/**
-	 * Constructor. Just retrieve the settings once.
+	 * Instance holder for GraphicsSettings.
 	 */
-	public GraphicsSettings() {
+	public static GraphicsSettings instance;
+	
+	
+	/**
+	 * Create the instance and store it in the instance holder.
+	 */
+	static {
+		GraphicsSettings.instance = new GraphicsSettings();
+	}
+	
+	/**
+	 * Private Constructor. Just retrieve the settings once and 
+	 * storing the instance in GraphicsSettings.instance.
+	 */
+	private GraphicsSettings() {
 		this.retrieveSettings();
 	}
 	
@@ -73,6 +95,7 @@ public class GraphicsSettings {
 				this.bitDepth = dm.getBitDepth();
 				this.height = dm.getHeight();
 				this.width = dm.getWidth();
+				this.screenDevice = gs[i]; 
 			}
 			if(GameConfig.DEBUG) {
 				System.out.println("Display Mode " + i + ": " + this.width + "x" + this.height+ "@" + this.refreshRate + "Hz, " + this.bitDepth + " bit");
@@ -80,4 +103,25 @@ public class GraphicsSettings {
 		}
 	}
 	
+	/**
+	 * Get the ColorModel of the screen device the game is supposed to be run on.
+	 */
+	public ColorModel getColorModel() {
+		return this.screenDevice.getDefaultConfiguration().getColorModel();
+	}
+	
+	/**
+	 * Creates a compatible BufferedImage from a given BufferedImage and returns it.
+	 */
+	public BufferedImage createCompatibleBufferedImage(BufferedImage originalImage) {
+		BufferedImage compatibleImage = this.screenDevice.getDefaultConfiguration()
+			.createCompatibleImage(originalImage.getWidth(), originalImage.getHeight(), originalImage.getTransparency());
+		//Transfer the actual image content by simply drawing.
+		Graphics2D g = (Graphics2D) compatibleImage.getGraphics();
+		g.drawImage(originalImage, 0, 0, null);
+		g.dispose();
+		//We're done.
+		return compatibleImage;
+	}
+	
 }

src/de/teamteamteam/spacescooter/utility/Loader.java

@@ -164,11 +164,13 @@ public class Loader {
 	}
 
 	/**
-	 * Load a BufferedImage by relative filename.
+	 * Load a BufferedImage by relative filename, creating a compatible 
+	 * BufferedImage using the GraphicsSettings ColorModel.
 	 */
 	private static void addBufferedImageByFilename(String filename) {
 		try {
-			BufferedImage image = ImageIO.read(Loader.class.getClassLoader().getResourceAsStream(filename));
+			BufferedImage storedImage = ImageIO.read(Loader.class.getClassLoader().getResourceAsStream(filename));
+			BufferedImage image = Loader.createCompatibleImage(storedImage);
 			Loader.images.put(filename, image);
 		} catch (Exception e) {
 			System.err.println("Unable to load BufferedImage: " + filename);
@@ -177,6 +179,20 @@ public class Loader {
 
 	}
 
+	/**
+	 * Helper method creating a compatible BufferedImage from a 
+	 * given BufferedImage taking into account the current ColorModel of the
+	 * current ScreenDevice.
+	 */
+	private static BufferedImage createCompatibleImage(BufferedImage storedImage) {
+		if(GraphicsSettings.instance.getColorModel().equals(storedImage.getColorModel())) {
+			return storedImage;
+		} else {
+			return GraphicsSettings.instance.createCompatibleBufferedImage(storedImage);
+		}
+	}
+
+
 	/**
 	 * Load an AudioInputStream by relative filename.
 	 */