Fix Bug 692: Add tracking of VERTEX_ARRAY_BINDING, and enable allowing a bound non default VAO to pass VBO enabled test, even if VBO is disabled.

VAO is available if: GL >= 3.0 or is having GL_ARB_vertex_array_object extension.

checkBufferObject(..) checks whether VERTEX_ARRAY_BINDING has a non default VAO bound in case
no VBO is being bound and VAO is allowed.

glBindVertexArray(int) is being tracked, i.e. on state VERTEX_ARRAY_BINDING

1 files changed, 2 insertions, 0 deletions

diff --git a/src/jogl/classes/jogamp/opengl/GLBufferStateTracker.java b/src/jogl/classes/jogamp/opengl/GLBufferStateTracker.java
index 4a1a81bcb..7f5316fbd 100644
--- a/src/jogl/classes/jogamp/opengl/GLBufferStateTracker.java
+++ b/src/jogl/classes/jogamp/opengl/GLBufferStateTracker.java
@@ -91,6 +91,7 @@ public class GLBufferStateTracker {
     bindingMap.setKeyNotFoundValue(0xFFFFFFFF);
 
     // Start with known unbound targets for known keys
+    // setBoundBufferObject(GL2GL3.GL_VERTEX_ARRAY_BINDING, 0); // not using default VAO (removed in GL3 core) - only explicit
     setBoundBufferObject(GL.GL_ARRAY_BUFFER,         0);
     setBoundBufferObject(GL.GL_ELEMENT_ARRAY_BUFFER, 0);
     setBoundBufferObject(GL2.GL_PIXEL_PACK_BUFFER,   0);
@@ -120,6 +121,7 @@ public class GLBufferStateTracker {
       boolean gotQueryTarget = true;
       int queryTarget = 0;
       switch (target) {
+        case GL2GL3.GL_VERTEX_ARRAY_BINDING: queryTarget = GL2GL3.GL_VERTEX_ARRAY_BINDING;  break;
         case GL.GL_ARRAY_BUFFER:          queryTarget = GL.GL_ARRAY_BUFFER_BINDING;         break;
         case GL.GL_ELEMENT_ARRAY_BUFFER:  queryTarget = GL.GL_ELEMENT_ARRAY_BUFFER_BINDING; break;
         case GL2.GL_PIXEL_PACK_BUFFER:    queryTarget = GL2.GL_PIXEL_PACK_BUFFER_BINDING;    break;