GLArrayData* VBO binding: Adding explicit bindBuffer(..) method, since VBO is not more bound after enableBuffer(); Fix unit test (test VBO bound).

Explicit bindBuffer(..) is required now, since enableBuffer() doesn't leave it bound.
See fixed VBORegion* patch for use case, i.e. using a VBO index buffer for glDrawElements().

Complets commit 8582ece7dc7f65271b3184261697a542766d9864.

2 files changed, 25 insertions, 4 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/util/GLArrayDataClient.java b/src/jogl/classes/com/jogamp/opengl/util/GLArrayDataClient.java
index 5a1524d05..30fc0012b 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/GLArrayDataClient.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/GLArrayDataClient.java
@@ -171,7 +171,13 @@ public class GLArrayDataClient extends GLArrayDataWrapper implements GLArrayData
         bufferEnabled = enable;
     }
   }
-
+  
+  public void bindBuffer(GL gl, boolean bind) {
+      if(isVBO()) {
+          gl.glBindBuffer(getVBOTarget(), bind ? getVBOName() : 0);
+      }
+  }
+  
   public void setEnableAlways(boolean always) {
     enableBufferAlways = always;
   }
diff --git a/src/jogl/classes/com/jogamp/opengl/util/GLArrayDataEditable.java b/src/jogl/classes/com/jogamp/opengl/util/GLArrayDataEditable.java
index bb22a4b7e..588e90d1e 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/GLArrayDataEditable.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/GLArrayDataEditable.java
@@ -45,9 +45,15 @@ public interface GLArrayDataEditable extends GLArrayData {
     public void seal(GL gl, boolean seal);
 
     /**
-     * <p>Enables/disables the buffer, 
-     * sets the client state, binds the VBO if used
-     * and transfers the data if necessary.</p>
+     * <p>
+     * Enables the buffer if <code>enable</code> is <code>true</code>, 
+     * and transfers the data if required.
+     * In case {@link #isVBO() VBO is used}, it is bound accordingly for the data transfer and data association.
+     * The VBO buffer is unbound when the method returns. 
+     * </p>
+     * <p>
+     * Disables the buffer if <code>enable</code> is <code>false</code>. 
+     * </p>
      * 
      * <p>The action will only be executed,
      * if the internal enable state differs, 
@@ -61,6 +67,15 @@ public interface GLArrayDataEditable extends GLArrayData {
      * @see #setEnableAlways(boolean)
      */
     public void enableBuffer(GL gl, boolean enable);
+    
+    /**
+     * In case {@link #isVBO() VBO is used}, the buffer is bound 
+     * if <code>bind</code> is <code>true</code>, otherwise the buffer is unbound.
+     * 
+     * @param gl
+     * @param bind
+     */
+    public void bindBuffer(GL gl, boolean bind);
 
     /**
      * Affects the behavior of 'enableBuffer'.