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diff --git a/linden/indra/newview/lldrawpoolalpha.h b/linden/indra/newview/lldrawpoolalpha.h
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+/** 
+ * @file lldrawpoolalpha.h
+ * @brief LLDrawPoolAlpha class definition
+ *
+ * Copyright (c) 2002-2007, Linden Research, Inc.
+ * 
+ * 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://secondlife.com/developers/opensource/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://secondlife.com/developers/opensource/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.
+ */
+
+#ifndef LL_LLDRAWPOOLALPHA_H
+#define LL_LLDRAWPOOLALPHA_H
+
+#include "lldrawpool.h"
+#include "llviewerimage.h"
+#include "llframetimer.h"
+
+class LLFace;
+class LLColor4;
+
+class LLDrawPoolAlpha: public LLDrawPool
+{
+public:
+        LLDrawPoolAlpha();
+        /*virtual*/ ~LLDrawPoolAlpha();
+
+        /*virtual*/ LLDrawPool *instancePool();
+
+        /*virtual*/ void beginRenderPass(S32 pass = 0);
+        /*virtual*/ void render(S32 pass = 0);
+        /*virtual*/ void renderFaceSelected(LLFace *facep, LLImageGL *image, const LLColor4 &color,
+                                                                                const S32 index_offset = 0, const S32 index_count = 0);
+        /*virtual*/ void prerender();
+        /*virtual*/ void renderForSelect();
+
+        /*virtual*/ void enqueue(LLFace *face);
+        /*virtual*/ BOOL removeFace(LLFace *face);
+        /*virtual*/ void resetDrawOrders();
+
+        /*virtual*/ void enableShade();
+        /*virtual*/ void disableShade();
+        /*virtual*/ void setShade(F32 shade);
+
+
+        virtual S32 getMaterialAttribIndex();
+
+        BOOL mRebuiltLastFrame;
+        enum
+        {
+                NUM_ALPHA_BINS = 1024
+        };
+
+        /*virtual*/ BOOL verify() const;
+        /*virtual*/ LLViewerImage *getDebugTexture();
+        /*virtual*/ LLColor3 getDebugColor() const; // For AGP debug display
+
+        static BOOL sShowDebugAlpha;
+protected:
+        F32 mMinDistance;
+        F32 mMaxDistance;
+        F32 mInvBinSize;
+
+        LLDynamicArray<LLFace*> mDistanceBins[NUM_ALPHA_BINS];
+};
+
+#endif // LL_LLDRAWPOOLALPHA_H