4 files changed, 86 insertions, 0 deletions
diff --git a/indra/llrender/CMakeLists.txt b/indra/llrender/CMakeLists.txt
index 331f988382..07a0d8c402 100644
--- a/indra/llrender/CMakeLists.txt
+++ b/indra/llrender/CMakeLists.txt
@@ -51,6 +51,7 @@ set(llrender_SOURCE_FILES
     lltexture.cpp
     lluiimage.cpp
     llvertexbuffer.cpp
+    llglcommonfunc.cpp
     )
     
 set(llrender_HEADER_FILES
@@ -78,6 +79,7 @@ set(llrender_HEADER_FILES
     lltexture.h
     lluiimage.h
     llvertexbuffer.h
+    llglcommonfunc.h
     )
 
 set_source_files_properties(${llrender_HEADER_FILES}
diff --git a/indra/llrender/llgl.h b/indra/llrender/llgl.h
index aa98b3f6bc..4c4302d05b 100644
--- a/indra/llrender/llgl.h
+++ b/indra/llrender/llgl.h
@@ -256,6 +256,9 @@ void clear_glerror();
 	if the existing GL state does not match the expected GL state.
 
 */
+
+#include "boost/function.hpp"
+
 class LLGLState
 {
 public:
@@ -297,6 +300,20 @@ public:
 	LLGLEnableAlphaReject(bool enable);
 };
 
+// Enable with functor
+class LLGLEnableFunc : LLGLState
+{
+public:
+	LLGLEnableFunc(LLGLenum state, bool enable, boost::function<void()> func)
+		: LLGLState(state, enable)
+	{
+		if (enable)
+		{
+			func();
+		}
+	}
+};
+
 /// TODO: Being deprecated.
 class LLGLEnable : public LLGLState
 {
diff --git a/indra/llrender/llglcommonfunc.cpp b/indra/llrender/llglcommonfunc.cpp
new file mode 100644
index 0000000000..e9ec28927f
--- /dev/null
+++ b/indra/llrender/llglcommonfunc.cpp
@@ -0,0 +1,37 @@
+/**
+* @file llglcommonfunc.cpp
+* @brief Implementation of the LLGLCommonFunc.
+*
+* $LicenseInfo:firstyear=2001&license=viewerlgpl$
+* Second Life Viewer Source Code
+* Copyright (C) 2010, Linden Research, Inc.
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public
+* License as published by the Free Software Foundation;
+* version 2.1 of the License only.
+*
+* This library is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+* Lesser General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public
+* License along with this library; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*
+* Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+* $/LicenseInfo$
+*/
+
+#include "llglheaders.h"
+#include "llglcommonfunc.h"
+
+namespace LLGLCommonFunc 
+{
+	void selected_stencil_test()
+	{
+		glStencilFunc(GL_ALWAYS, 2, 0xffff);
+		glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
+	}
+}
diff --git a/indra/llrender/llglcommonfunc.h b/indra/llrender/llglcommonfunc.h
new file mode 100644
index 0000000000..f1f8ff7bc4
--- /dev/null
+++ b/indra/llrender/llglcommonfunc.h
@@ -0,0 +1,30 @@
+/**
+* @file llphoenixfunc.h
+* @brief File include common opengl code snippets
+*
+* $LicenseInfo:firstyear=2003&license=viewerlgpl$
+* Second Life Viewer Source Code
+* Copyright (C) 2010, Linden Research, Inc.
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public
+* License as published by the Free Software Foundation;
+* version 2.1 of the License only.
+*
+* This library is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+* Lesser General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public
+* License along with this library; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*
+* Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+* $/LicenseInfo$
+*/
+
+namespace LLGLCommonFunc
+{
+	void selected_stencil_test();
+}