Minor GL/GLContext additions / cleanups (GL_BGRA, isNPOTTextureAvailable())

- Subsume GL_EXT_texture_format_BGRA8888 -> GL,
  Added GLContext.isTextureFormatBGRA8888Available()

- Movied generic isNPOTTextureAvailable() from GL -> GLContext, used by GL (desktop),
  added simplified impl. in GLES1/GLES2 (false/true)

1 files changed, 12 insertions, 1 deletions

diff --git a/src/jogl/classes/javax/media/opengl/GLContext.java b/src/jogl/classes/javax/media/opengl/GLContext.java
index 894f44b9f..b74cfb939 100644
--- a/src/jogl/classes/javax/media/opengl/GLContext.java
+++ b/src/jogl/classes/javax/media/opengl/GLContext.java
@@ -547,7 +547,18 @@ public abstract class GLContext {
   public final boolean hasGLSL() {
       return isGL2ES2() ;
   }
-
+  
+  /** Note: The GL impl. may return a const value, ie {@link GLES2#isNPOTTextureAvailable()} always returns <code>true</code>. */
+  public boolean isNPOTTextureAvailable() {
+      return isGL3() || isGLES2Compatible() || isExtensionAvailable(GL_ARB_texture_non_power_of_two);
+  }
+  private static final String GL_ARB_texture_non_power_of_two = "GL_ARB_texture_non_power_of_two";
+  
+  public boolean isTextureFormatBGRA8888Available() {
+      return isGL2GL3() || 
+             isExtensionAvailable("GL_EXT_texture_format_BGRA8888") || 
+             isExtensionAvailable("GL_IMG_texture_format_BGRA8888") ;
+  }
 
   public final boolean isGL4bc() {
       return ctxMajorVersion>=4 && 0 != (ctxOptions & CTX_IS_ARB_CREATED)