Added CubeFBO demo

git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@243 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4

1 files changed, 125 insertions, 0 deletions

diff --git a/src/demos/cubefbo/FBObject.java b/src/demos/cubefbo/FBObject.java
new file mode 100755
index 0000000..a55096f
--- /dev/null
+++ b/src/demos/cubefbo/FBObject.java
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2008 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.
+ * 
+ */
+
+package demos.cubefbo;
+
+import javax.media.opengl.*;
+import com.sun.opengl.util.*;
+import java.nio.*;
+
+class FBObject {
+    private int fb, fbo_tex, depth_rb, stencil_rb, width, height;
+
+    public FBObject(int width, int height) {
+
+        this.width = width;
+        this.height = height;
+    }        
+
+    public void init(GL gl) {
+        // generate fbo ..
+        int name[] = new int[1];
+
+        gl.glGenTextures(1, name, 0);
+        fbo_tex = name[0];
+        System.out.println("fbo_tex: "+fbo_tex);
+
+        gl.glBindTexture(GL.GL_TEXTURE_2D, fbo_tex);
+        gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST);
+        gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST);
+        gl.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB8, width, height, 0,
+                        GL.GL_RGB, GL.GL_UNSIGNED_BYTE, null);
+
+        gl.glGenRenderbuffersEXT(1, name, 0);
+        depth_rb = name[0];
+        System.out.println("depth_rb: "+depth_rb);
+
+        // Initialize the depth buffer:
+        gl.glBindRenderbufferEXT(GL.GL_RENDERBUFFER_EXT, depth_rb);
+        gl.glRenderbufferStorageEXT(GL.GL_RENDERBUFFER_EXT,
+                                    GL.GL_DEPTH_COMPONENT24, width, height);
+
+        // gl.glGenRenderbuffersEXT(1, name, 0);
+        // stencil_rb = name[0];
+        stencil_rb = 0;
+        System.out.println("stencil_rb: "+stencil_rb);
+
+        gl.glGenFramebuffersEXT(1, name, 0);
+        fb = name[0];
+        System.out.println("fb: "+fb);
+
+        // bind fbo ..
+        gl.glBindFramebufferEXT(GL.GL_FRAMEBUFFER_EXT, fb);
+
+        // Set up the color buffer for use as a renderable texture:
+        gl.glFramebufferTexture2DEXT(GL.GL_FRAMEBUFFER_EXT,
+                                  GL.GL_COLOR_ATTACHMENT0_EXT,
+                                  GL.GL_TEXTURE_2D, fbo_tex, 0); 
+
+        // Set up the depth buffer attachment:
+        gl.glFramebufferRenderbufferEXT(GL.GL_FRAMEBUFFER_EXT,
+                                        GL.GL_DEPTH_ATTACHMENT_EXT,
+                                        GL.GL_RENDERBUFFER_EXT, depth_rb);
+
+        if(stencil_rb!=0) {
+            // Initialize the stencil buffer:
+            gl.glBindRenderbufferEXT(GL.GL_RENDERBUFFER_EXT, stencil_rb);
+
+            gl.glRenderbufferStorageEXT(GL.GL_RENDERBUFFER_EXT,
+                                        GL.GL_STENCIL_INDEX8_EXT, width, height);
+
+            gl.glFramebufferRenderbufferEXT(GL.GL_FRAMEBUFFER_EXT,
+                                            GL.GL_STENCIL_ATTACHMENT_EXT,
+                                            GL.GL_RENDERBUFFER_EXT, stencil_rb);
+        }
+        unbind(gl);
+    }
+
+    public void bind(GL gl) {
+        gl.glBindFramebufferEXT(GL.GL_FRAMEBUFFER_EXT, fb); 
+    }
+
+    public void unbind(GL gl) {
+        //        gl.glBindTexture(GL.GL_TEXTURE_2D, 0);
+        //        gl.glDisable (GL.GL_TEXTURE_2D);
+        gl.glBindFramebufferEXT(GL.GL_FRAMEBUFFER_EXT, 0); 
+    }
+
+    public int getFBName() {
+        return fb;
+    }
+    public int getTextureName() {
+        return fbo_tex;
+    }
+}
+