diff options
Diffstat (limited to 'indra/newview/llviewerstats.h')
| -rw-r--r-- | indra/newview/llviewerstats.h | 91 |
1 files changed, 70 insertions, 21 deletions
diff --git a/indra/newview/llviewerstats.h b/indra/newview/llviewerstats.h index 13d73000d2..5d8f58d5e9 100644 --- a/indra/newview/llviewerstats.h +++ b/indra/newview/llviewerstats.h @@ -2,31 +2,25 @@ * @file llviewerstats.h * @brief LLViewerStats class header file * - * $LicenseInfo:firstyear=2002&license=viewergpl$ - * - * Copyright (c) 2002-2009, Linden Research, Inc. - * + * $LicenseInfo:firstyear=2002&license=viewerlgpl$ * 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 + * Copyright (C) 2010, Linden Research, Inc. * - * 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 + * 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. * - * 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. + * 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. * - * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO - * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, - * COMPLETENESS OR PERFORMANCE. + * 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 * $/LicenseInfo$ */ @@ -197,6 +191,61 @@ public: void addToMessage(LLSD &body) const; + struct StatsAccumulator + { + S32 mCount; + F32 mSum; + F32 mSumOfSquares; + U32 mCountOfNextUpdatesToIgnore; + + inline void push( F32 val ) + { + if ( mCountOfNextUpdatesToIgnore > 0 ) + { + mCountOfNextUpdatesToIgnore--; + return; + } + + mCount++; + mSum += val; + mSumOfSquares += val * val; + } + + inline F32 getMean() const + { + return (mCount == 0) ? 0.f : ((F32)mSum)/mCount; + } + + inline F32 getStdDev() const + { + const F32 mean = getMean(); + return (mCount == 0) ? 0.f : sqrt( mSumOfSquares/mCount - (mean * mean) ); + } + + inline U32 getCount() const + { + return mCount; + } + + inline void reset() + { + mCount = 0; + mSum = mSumOfSquares = 0.f; + mCountOfNextUpdatesToIgnore = 0; + } + + inline LLSD getData() const + { + LLSD data; + data["mean"] = getMean(); + data["std_dev"] = getStdDev(); + data["count"] = (S32)mCount; + return data; + } + }; + + StatsAccumulator mAgentPositionSnaps; + private: F64 mStats[ST_COUNT]; |