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diff --git a/linden/indra/llrender/llglslshader.h b/linden/indra/llrender/llglslshader.h
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+/** 
+ * @file llglslshader.h
+ * @brief GLSL shader wrappers
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2008, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLGLSLSHADER_H
+#define LL_LLGLSLSHADER_H
+
+#include "llgl.h"
+
+class LLShaderFeatures
+{
+public:
+        bool calculatesLighting;
+        bool calculatesAtmospherics;
+        bool hasLighting; // implies no transport (it's possible to have neither though)
+        bool isShiny;
+        bool isFullbright; // implies no lighting
+        bool isSpecular;
+        bool hasWaterFog; // implies no gamma
+        bool hasTransport; // implies no lighting (it's possible to have neither though)
+        bool hasSkinning;       
+        bool hasAtmospherics;
+        bool hasGamma;
+
+        // char numLights;
+        
+        LLShaderFeatures();
+};
+
+class LLGLSLShader
+{
+public:
+
+        enum 
+        {
+                SG_DEFAULT = 0,
+                SG_SKY,
+                SG_WATER
+        };
+        
+        LLGLSLShader();
+
+        void unload();
+        BOOL createShader(std::vector<std::string> * attributes,
+                                                std::vector<std::string> * uniforms);
+        BOOL attachObject(std::string object);
+        void attachObject(GLhandleARB object);
+        void attachObjects(GLhandleARB* objects = NULL, S32 count = 0);
+        BOOL mapAttributes(const std::vector<std::string> * attributes);
+        BOOL mapUniforms(const std::vector<std::string> * uniforms);
+        void mapUniform(GLint index, const std::vector<std::string> * uniforms);
+        void uniform1f(U32 index, GLfloat v);
+        void uniform2f(U32 index, GLfloat x, GLfloat y);
+        void uniform3f(U32 index, GLfloat x, GLfloat y, GLfloat z);
+        void uniform4f(U32 index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
+        void uniform1fv(U32 index, U32 count, const GLfloat* v);
+        void uniform2fv(U32 index, U32 count, const GLfloat* v);
+        void uniform3fv(U32 index, U32 count, const GLfloat* v);
+        void uniform4fv(U32 index, U32 count, const GLfloat* v);
+        void uniform1f(const std::string& uniform, GLfloat v);
+        void uniform2f(const std::string& uniform, GLfloat x, GLfloat y);
+        void uniform3f(const std::string& uniform, GLfloat x, GLfloat y, GLfloat z);
+        void uniform4f(const std::string& uniform, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
+        void uniform1fv(const std::string& uniform, U32 count, const GLfloat* v);
+        void uniform2fv(const std::string& uniform, U32 count, const GLfloat* v);
+        void uniform3fv(const std::string& uniform, U32 count, const GLfloat* v);
+        void uniform4fv(const std::string& uniform, U32 count, const GLfloat* v);
+        void uniformMatrix2fv(U32 index, U32 count, GLboolean transpose, const GLfloat *v);
+        void uniformMatrix3fv(U32 index, U32 count, GLboolean transpose, const GLfloat *v);
+        void uniformMatrix4fv(U32 index, U32 count, GLboolean transpose, const GLfloat *v);
+        void uniformMatrix2fv(const std::string& uniform, U32 count, GLboolean transpose, const GLfloat *v);
+        void uniformMatrix3fv(const std::string& uniform, U32 count, GLboolean transpose, const GLfloat *v);
+        void uniformMatrix4fv(const std::string& uniform, U32 count, GLboolean transpose, const GLfloat *v);
+
+        void vertexAttrib4f(U32 index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
+        void vertexAttrib4fv(U32 index, GLfloat* v);
+        
+        GLint getUniformLocation(const std::string& uniform);
+        
+        GLint mapUniformTextureChannel(GLint location, GLenum type);
+        
+
+        //enable/disable texture channel for specified uniform
+        //if given texture uniform is active in the shader, 
+        //the corresponding channel will be active upon return
+        //returns channel texture is enabled in from [0-MAX)
+        S32 enableTexture(S32 uniform, S32 mode = GL_TEXTURE_2D);
+        S32 disableTexture(S32 uniform, S32 mode = GL_TEXTURE_2D); 
+        
+    BOOL link(BOOL suppress_errors = FALSE);
+        void bind();
+        void unbind();
+
+        // Unbinds any previously bound shader by explicitly binding no shader.
+        static void bindNoShader(void);
+
+        GLhandleARB mProgramObject;
+        std::vector<GLint> mAttribute; //lookup table of attribute enum to attribute channel
+        std::vector<GLint> mUniform;   //lookup table of uniform enum to uniform location
+        std::map<std::string, GLint> mUniformMap;  //lookup map of uniform name to uniform location
+        std::map<GLint, LLVector4> mValue; //lookup map of uniform location to last known value
+        std::vector<GLint> mTexture;
+        S32 mActiveTextureChannels;
+        S32 mShaderLevel;
+        S32 mShaderGroup;
+        BOOL mUniformsDirty;
+        LLShaderFeatures mFeatures;
+        std::vector< std::pair< std::string, GLenum > > mShaderFiles;
+        std::string mName;
+};
+
+#endif