Fix Bug 658 (Mesa 9.0 3.1 Intel compat quirk, 3.1 core only) ; No PROFILE_ALIASING compat -> core ; Fix setGLFunctionAvailability(..) failure path @ profile query

- Add GLRendererQuirks.GLNonCompliant, marking a GL context/profile non compliant.
  Currently: 'Mesa DRI Intel(R) Sandybridge Desktop' && 3.1 compat profile

- Fix Bug 658 (Mesa 9.0 3.1 Intel compat quirk, 3.1 core only)
  Detect case using new GLRendererQuirks.GLNonCompliant in setGLFunctionAvailability() and return 'false'.

- No PROFILE_ALIASING compat -> core
  Use true core GL profiles / context if available to ensure
  proper API behavior across platforms due to different functionality.
  E.g. don't use GL3bc if GL3 is requested.

- Fix setGLFunctionAvailability(..) failure path @ profile query
  Destroy temp context & zero result to cont. iterating through GL versions.
  This missing cleanup lead to returning the faulty GL context handle and it's mapping/usage.

1 files changed, 15 insertions, 3 deletions

diff --git a/src/jogl/classes/com/jogamp/opengl/GLRendererQuirks.java b/src/jogl/classes/com/jogamp/opengl/GLRendererQuirks.java
index 2f453a497..9a13ff904 100644
--- a/src/jogl/classes/com/jogamp/opengl/GLRendererQuirks.java
+++ b/src/jogl/classes/com/jogamp/opengl/GLRendererQuirks.java
@@ -37,7 +37,7 @@ package com.jogamp.opengl;
  */
 public class GLRendererQuirks {
     /** 
-     * Crashes XServer when using double buffered PBuffer with:
+     * Crashes XServer when using double buffered PBuffer with GL_RENDERER:
      * <ul>
      *  <li>Mesa DRI Intel(R) Sandybridge Desktop</li>
      *  <li>Mesa DRI Intel(R) Ivybridge Mobile - 3.0 Mesa 8.0.4</li>
@@ -62,11 +62,23 @@ public class GLRendererQuirks {
     /** GLSL <code>discard</code> command leads to undefined behavior or won't get compiled if being used. Appears to happen on Nvidia Tegra2. FIXME: Constrain version. */
     public static final int GLSLBuggyDiscard = 5;
     
+    /** 
+     * Non compliant GL context, e.g. due to a buggy implementation rendering it not suitable for use.
+     * <p>
+     * Mesa >= 9.0 (?), Intel driver, OpenGL 3.1 compatibility context is not compliant: 
+     * <pre>
+     * GL_RENDERER: Mesa DRI Intel(R) Sandybridge Desktop 
+     * </pre>
+     * </p>
+     */
+    public static final int GLNonCompliant = 6;
+    
     /** Number of quirks known. */
-    public static final int COUNT = 6;
+    public static final int COUNT = 7;
     
     private static final String[] _names = new String[] { "NoDoubleBufferedPBuffer", "NoDoubleBufferedBitmap", "NoSetSwapInterval",
-                                                          "NoOffscreenBitmap", "NoSetSwapIntervalPostRetarget", "GLSLBuggyDiscard"
+                                                          "NoOffscreenBitmap", "NoSetSwapIntervalPostRetarget", "GLSLBuggyDiscard",
+                                                          "GLNonCompliant"
                                                         };
 
     private final int _bitmask;