beging np2 extension check work.
diff --git a/libs/rs/rsContext.h b/libs/rs/rsContext.h
index 03e65f1..04bd748 100644
--- a/libs/rs/rsContext.h
+++ b/libs/rs/rsContext.h
@@ -163,6 +163,8 @@
 
     mutable const ObjectBase * mObjHead;
 
+    bool ext_OES_texture_npot() const {return mGL.OES_texture_npot;}
+
 protected:
     Device *mDev;
 
@@ -196,6 +198,8 @@
         int32_t mMaxVertexAttribs;
         int32_t mMaxVertexUniformVectors;
         int32_t mMaxVertexTextureUnits;
+
+        bool OES_texture_npot;
     } mGL;
 
     uint32_t mWidth;