Adding GEOMETRY_SHADER support in ShaderCode, adding core GL3/GEOMETRY_SHADER unit tests. ; Simplified GLContext version number

- Adding GEOMETRY_SHADER support in ShaderCode, adding core GL3/GEOMETRY_SHADER unit tests

  Chuck Ritola reported in December 2012 that we lack support of GEOMETRY_SHADER
  and he provided a test case.

  The latter is cleaned up to use GL3 core profile features only
  tesing a pass-through and the flip-XYZ geometry shader.

  ShaderUtil is fixed.

- Simplified GLContext version number
  The OpenGL major/minor version is now hold in a VersionNumber instance
  to simplify usage. Also expose it via getGLVersionNumber() while marking
  getGLVersionMajor() and getGLVersionMinor() deprecated.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/GLExtensions.java b/src/jogl/classes/com/jogamp/opengl/GLExtensions.java
index cf81b85ee..c0666d153 100644
--- a/src/jogl/classes/com/jogamp/opengl/GLExtensions.java
+++ b/src/jogl/classes/com/jogamp/opengl/GLExtensions.java
@@ -73,8 +73,9 @@ public class GLExtensions {
   public static final String OES_EGL_image_external          = "GL_OES_EGL_image_external";
   
   public static final String ARB_gpu_shader_fp64             = "GL_ARB_gpu_shader_fp64";
-  public static final String ARB_shader_objects              = "GL_ARB_shader_objects";
-   
+  public static final String ARB_shader_objects              = "GL_ARB_shader_objects"; 
+  public static final String ARB_geometry_shader4            = "GL_ARB_geometry_shader4";
+  
   //
   // Aliased GLX/WGL/.. extensions
   //