Bug 890 - Fix GLES3 Profile Mapping, i.e. GL2ES2 queries and mappings; Validate isGLES*() usage and definition ; Add and use ShaderCode.createExtensionDirective(..)

- Fix GLES3 Profile Mapping, i.e. GL2ES2 queries and mappings
  - GLProfile: Add GL2ES2 -> ES3 mapping
  - EGLContext: Reuqest major '3' for ES3
  - EGLGLCapabilities/EGLGraphicsConfiguration: Consider EGLExt.EGL_OPENGL_ES3_BIT_KHR

- Validate isGLES*() usage and definition
  - Fix BuildComposablePipeline's isGLES() code

  - For GLSL related queries use isGLES() instead of isGLES2(),
    which would exclude ES3

- Add and use ShaderCode.createExtensionDirective(..)
  - Supporting creating GLSL extension directives while reusing strings from GLExtensions

- Minor cleanup of GLContextImpl.setGLFuncAvail(..)

2 files changed, 6 insertions, 4 deletions

diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java b/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
index 012b1d1dd..31ad974d0 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/RegionRendererImpl01.java
@@ -36,6 +36,7 @@ import com.jogamp.graph.curve.Region;
 import com.jogamp.graph.curve.opengl.GLRegion;
 import com.jogamp.graph.curve.opengl.RegionRenderer;
 import com.jogamp.graph.curve.opengl.RenderState;
+import com.jogamp.opengl.GLExtensions;
 import com.jogamp.opengl.util.glsl.ShaderCode;
 import com.jogamp.opengl.util.glsl.ShaderProgram;
 import com.jogamp.opengl.util.glsl.ShaderState;
@@ -57,8 +58,8 @@ public class RegionRendererImpl01 extends RegionRenderer {
         rsVp.defaultShaderCustomization(gl, true, true);
         // rsFp.defaultShaderCustomization(gl, true, true);
         int pos = rsFp.addGLSLVersion(gl);
-        if( gl.isGLES2() ) {
-            pos = rsFp.insertShaderSource(0, pos, ShaderCode.extOESDerivativesEnable);
+        if( gl.isGLES() ) {
+            pos = rsFp.insertShaderSource(0, pos, ShaderCode.createExtensionDirective(GLExtensions.OES_standard_derivatives, ShaderCode.ENABLE));
         }
         final String rsFpDefPrecision =  getFragmentShaderPrecision(gl);
         if( null != rsFpDefPrecision ) {
diff --git a/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java b/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java
index 60758b90b..4ec4d1d98 100644
--- a/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java
+++ b/src/jogl/classes/jogamp/graph/curve/opengl/TextRendererImpl01.java
@@ -36,6 +36,7 @@ import jogamp.graph.curve.text.GlyphString;
 import com.jogamp.graph.curve.opengl.RenderState;
 import com.jogamp.graph.curve.opengl.TextRenderer;
 import com.jogamp.graph.font.Font;
+import com.jogamp.opengl.GLExtensions;
 import com.jogamp.opengl.util.glsl.ShaderCode;
 import com.jogamp.opengl.util.glsl.ShaderProgram;
 import com.jogamp.opengl.util.glsl.ShaderState;
@@ -56,8 +57,8 @@ public class TextRendererImpl01 extends TextRenderer {
         rsVp.defaultShaderCustomization(gl, true, true);
         // rsFp.defaultShaderCustomization(gl, true, true);
         int pos = rsFp.addGLSLVersion(gl);
-        if( gl.isGLES2() ) {
-            pos = rsFp.insertShaderSource(0, pos, ShaderCode.extOESDerivativesEnable);
+        if( gl.isGLES() ) {
+            pos = rsFp.insertShaderSource(0, pos, ShaderCode.createExtensionDirective(GLExtensions.OES_standard_derivatives, ShaderCode.ENABLE));
         }
         final String rsFpDefPrecision =  getFragmentShaderPrecision(gl);
         if( null != rsFpDefPrecision ) {