Final core and demo changes for jogl merge

Core:
- Region: Cleanup up constant names
- Renderer: Add getRenderType()
- TextRenderer: Add cache size limit
- JavaFontLoader: Add FIXME 'Add cache size to limit memory usage'
- UbuntuFontLoader: Add cache and FIXME 'Add cache size to limit memory usage'
- TypecastFont: Add FIXME 'Add cache size to limit memory usage ??'

Demos:
- Relocated and split (main/listener) for jogl merge
- Add 's' for screenshot
- Text:
  - Add 'i' for live editing mode (until CR, backspace supported)

1 files changed, 39 insertions, 0 deletions

diff --git a/src/com/jogamp/opengl/test/junit/graph/demos/Screenshot.java b/src/com/jogamp/opengl/test/junit/graph/demos/Screenshot.java
new file mode 100644
index 000000000..e0c304e49
--- /dev/null
+++ b/src/com/jogamp/opengl/test/junit/graph/demos/Screenshot.java
@@ -0,0 +1,39 @@
+package com.jogamp.opengl.test.junit.graph.demos;
+
+import java.io.File;
+import java.io.IOException;
+
+import javax.media.opengl.GL;
+import javax.media.opengl.GLAutoDrawable;
+
+import com.jogamp.opengl.util.texture.TextureIO;
+
+public class Screenshot {
+
+    ReadBufferUtil readBufferUtil = new ReadBufferUtil();
+
+    public void dispose() {
+        readBufferUtil.dispose();
+    }
+
+    public void surface2File(GLAutoDrawable drawable, String filename) {
+        GL gl = drawable.getGL();
+        // FIXME glFinish() is an expensive paranoia sync, should not be necessary due to spec
+        gl.glFinish();
+        readBufferUtil.fetchOffscreenTexture(drawable, gl);
+        gl.glFinish();
+        try {
+            surface2File(filename);
+        } catch (IOException ex) {
+            throw new RuntimeException("can not write survace to file", ex);
+        }
+    }
+
+    void surface2File(String filename) throws IOException {
+        File file = new File(filename);
+        TextureIO.write(readBufferUtil.getTextureData(), file);
+        System.err.println("Wrote: " + file.getAbsolutePath() + ", ...");
+        readBufferUtil.rewindPixelBuffer();
+    }
+    
+}