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diff --git a/indra/llrender/llshadermgr.h b/indra/llrender/llshadermgr.h
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+/** 
+ * @file llshadermgr.h
+ * @brief Shader Manager
+ *
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
+ * 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
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_SHADERMGR_H
+#define LL_SHADERMGR_H
+
+#include "llgl.h"
+#include "llglslshader.h"
+
+class LLShaderMgr
+{
+public:
+	LLShaderMgr();
+	virtual ~LLShaderMgr();
+
+	// singleton pattern implementation
+	static LLShaderMgr * instance();
+
+	BOOL attachShaderFeatures(LLGLSLShader * shader);
+	void dumpObjectLog(GLhandleARB ret, BOOL warns = TRUE);
+	BOOL	linkProgramObject(GLhandleARB obj, BOOL suppress_errors = FALSE);
+	BOOL	validateProgramObject(GLhandleARB obj);
+	GLhandleARB loadShaderFile(const std::string& filename, S32 & shader_level, GLenum type);
+
+	// Implemented in the application to actually point to the shader directory.
+	virtual std::string getShaderDirPrefix(void) = 0; // Pure Virtual
+
+	// Implemented in the application to actually update out of date uniforms for a particular shader
+	virtual void updateShaderUniforms(LLGLSLShader * shader) = 0; // Pure Virtual
+
+public:
+	// Map of shader names to compiled
+	std::map<std::string, GLhandleARB> mShaderObjects;
+
+	//global (reserved slot) shader parameters
+	std::vector<std::string> mReservedAttribs;
+
+	std::vector<std::string> mReservedUniforms;
+
+protected:
+
+	// our parameter manager singleton instance
+	static LLShaderMgr * sInstance;
+
+}; //LLShaderMgr
+
+#endif