llcriticaldamp.h
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- /**
- * @file llcriticaldamp.h
- * @brief A lightweight class that calculates critical damping constants once
- * per frame.
- *
- * $LicenseInfo:firstyear=2002&license=viewergpl$
- *
- * Copyright (c) 2002-2010, 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,
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- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #ifndef LL_LLCRITICALDAMP_H
- #define LL_LLCRITICALDAMP_H
- #include <map>
- #include "llframetimer.h"
- class LL_COMMON_API LLCriticalDamp
- {
- public:
- LLCriticalDamp();
- // MANIPULATORS
- static void updateInterpolants();
- // ACCESSORS
- static F32 getInterpolant(const F32 time_constant, BOOL use_cache = TRUE);
- protected:
- static LLFrameTimer sInternalTimer; // frame timer for calculating deltas
- static std::map<F32, F32> sInterpolants;
- static F32 sTimeDelta;
- };
- #endif // LL_LLCRITICALDAMP_H