Bug 852: Remove CPU sourced data API entry where not allowed (ES3 and GL core >= 3.0) ; GL2 cfg: Ignore GL2ES3 symbols (super)

Remove CPU sourced data API entries via new config 'BufferObjectOnly  <name>',
listed in 'gl-common-gpubufferonly.cfg' and included in ES3 and all GL core >= 3 interfaces.

If BufferObjectOnly is defined for a function, only the 'long offset' variant is being emitted.

Due to limitations of GlueGen's 'ExtendedInterfaceSymbolsIgnore A.java', which only
identifies the function name and not the signature - all CPU sourced variants
are manually added to the compatibility and ES2 GL profiles via '*-common-cpubufferJavaCode.java' files.

GLContext: Added 'isCPUSourcedAvail()' to determine whether context allows CPU sourced data,
i.e. for GL2ES1 and GLES2 ctx.

GLContext/GLProfile/GL: isGLES2() now returns false if having a ES3 context due to 'CPU sourced'
incompatibility!

+++

GL2 cfg: Added ignore GL2ES3 symbols of it's superclass, removing duplicated symbols.

1 files changed, 12 insertions, 2 deletions

diff --git a/src/jogl/classes/javax/media/opengl/GLContext.java b/src/jogl/classes/javax/media/opengl/GLContext.java
index 2dca2a685..3a72319bb 100644
--- a/src/jogl/classes/javax/media/opengl/GLContext.java
+++ b/src/jogl/classes/javax/media/opengl/GLContext.java
@@ -1009,6 +1009,16 @@ public abstract class GLContext {
              ) ;
   }
   
+  /**
+   * Indicates whether this GLContext allows CPU sourced data (indices, vertices ..) as opposed to a GPU buffer source (VBO),
+   * e.g. {@link GL2#glDrawElements(int, int, int, java.nio.Buffer)}. 
+   * <p>Includes [GL2ES1, GLES2] == [ GL4bc, GL3bc, GL2, GLES1, GL2ES1, GLES2 ].</p>
+   * <p>See Bug 852 - https://jogamp.org/bugzilla/show_bug.cgi?id=852 </p>
+   */
+  public final boolean isCPUSourcedAvail() {
+      return isGL2ES1() || isGLES2();
+  }
+  
   /** 
    * Indicates whether this GLContext's native profile does not implement a default <i>vertex array object</i> (VAO), 
    * starting w/ OpenGL 3.1 core and GLES3.
@@ -1078,11 +1088,11 @@ public abstract class GLContext {
   }
 
   /**
-   * Indicates whether this GLContext is capable of GLES2.  <p>Includes [ GLES3, GLES2 ].</p> 
+   * Indicates whether this GLContext is capable of GLES2.  <p>Includes [ GLES2 ].</p> 
    * @see GLProfile#isGLES2() 
    */
   public final boolean isGLES2() {
-      return 0 != ( ctxOptions & CTX_PROFILE_ES ) && ctxVersion.getMajor() >= 2 ;
+      return 0 != ( ctxOptions & CTX_PROFILE_ES ) && ctxVersion.getMajor() == 2 ;
   }
 
   /**