Major media subsystem revamp:

- All images are loaded through the image manager
- Architected to allow the use of prepared or unprepared images (and
  volatile images when the day comes that they support alpha)
- Tunable caches for images and tiles
- Resource manager caches unpacked resources on the filesystem
- Various and sundry other cleanups


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@2116 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/media/image/BlankMirage.java

@@ -0,0 +1,53 @@
+//
+// $Id: BlankMirage.java,v 1.1 2003/01/13 22:49:46 mdb Exp $
+
+package com.threerings.media.image;
+
+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
+
+/**
+ * A mirage implementation that contains no image data. Generally only
+ * useful for testing.
+ */
+public class BlankMirage implements Mirage
+{
+    public BlankMirage (int width, int height)
+    {
+        _width = width;
+        _height = height;
+    }
+
+    // documentation inherited from interface
+    public void paint (Graphics2D gfx, int x, int y)
+    {
+        // nothing doing
+    }
+
+    // documentation inherited from interface
+    public int getWidth ()
+    {
+        return _width;
+    }
+
+    // documentation inherited from interface
+    public int getHeight ()
+    {
+        return _height;
+    }
+
+    // documentation inherited from interface
+    public boolean hitTest (int x, int y)
+    {
+        return false;
+    }
+
+    // documentation inherited from interface
+    public BufferedImage getSnapshot ()
+    {
+        return null;
+    }
+
+    protected int _width;
+    protected int _height;
+}