llmotion.cpp
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- /**
- * @file llmotion.cpp
- * @brief Implementation of LLMotion class.
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, 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,
- * 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.
- * $/LicenseInfo$
- */
- //-----------------------------------------------------------------------------
- // Header Files
- //-----------------------------------------------------------------------------
- #include "linden_common.h"
- #include "llmotion.h"
- #include "llcriticaldamp.h"
- //-----------------------------------------------------------------------------
- //-----------------------------------------------------------------------------
- // LLMotion class
- //-----------------------------------------------------------------------------
- //-----------------------------------------------------------------------------
- //-----------------------------------------------------------------------------
- // LLMotion()
- // Class Constructor
- //-----------------------------------------------------------------------------
- LLMotion::LLMotion( const LLUUID &id ) :
- mStopped(TRUE),
- mActive(FALSE),
- mID(id),
- mActivationTimestamp(0.f),
- mStopTimestamp(0.f),
- mSendStopTimestamp(F32_MAX),
- mResidualWeight(0.f),
- mFadeWeight(1.f),
- mDeactivateCallback(NULL),
- mDeactivateCallbackUserData(NULL)
- {
- for (int i=0; i<3; ++i)
- memset(&mJointSignature[i][0], 0, sizeof(U8) * LL_CHARACTER_MAX_JOINTS);
- }
- //-----------------------------------------------------------------------------
- // ~LLMotion()
- // Class Destructor
- //-----------------------------------------------------------------------------
- LLMotion::~LLMotion()
- {
- }
- //-----------------------------------------------------------------------------
- // fadeOut()
- //-----------------------------------------------------------------------------
- void LLMotion::fadeOut()
- {
- if (mFadeWeight > 0.01f)
- {
- mFadeWeight = lerp(mFadeWeight, 0.f, LLCriticalDamp::getInterpolant(0.15f));
- }
- else
- {
- mFadeWeight = 0.f;
- }
- }
- //-----------------------------------------------------------------------------
- // fadeIn()
- //-----------------------------------------------------------------------------
- void LLMotion::fadeIn()
- {
- if (mFadeWeight < 0.99f)
- {
- mFadeWeight = lerp(mFadeWeight, 1.f, LLCriticalDamp::getInterpolant(0.15f));
- }
- else
- {
- mFadeWeight = 1.f;
- }
- }
- //-----------------------------------------------------------------------------
- // addJointState()
- //-----------------------------------------------------------------------------
- void LLMotion::addJointState(const LLPointer<LLJointState>& jointState)
- {
- mPose.addJointState(jointState);
- S32 priority = jointState->getPriority();
- if (priority == LLJoint::USE_MOTION_PRIORITY)
- {
- priority = getPriority();
- }
- U32 usage = jointState->getUsage();
- // for now, usage is everything
- mJointSignature[0][jointState->getJoint()->getJointNum()] = (usage & LLJointState::POS) ? (0xff >> (7 - priority)) : 0;
- mJointSignature[1][jointState->getJoint()->getJointNum()] = (usage & LLJointState::ROT) ? (0xff >> (7 - priority)) : 0;
- mJointSignature[2][jointState->getJoint()->getJointNum()] = (usage & LLJointState::SCALE) ? (0xff >> (7 - priority)) : 0;
- }
- void LLMotion::setDeactivateCallback( void (*cb)(void *), void* userdata )
- {
- mDeactivateCallback = cb;
- mDeactivateCallbackUserData = userdata;
- }
- //virtual
- void LLMotion::setStopTime(F32 time)
- {
- mStopTimestamp = time;
- mStopped = TRUE;
- }
- BOOL LLMotion::isBlending()
- {
- return mPose.getWeight() < 1.f;
- }
- //-----------------------------------------------------------------------------
- // activate()
- //-----------------------------------------------------------------------------
- void LLMotion::activate(F32 time)
- {
- mActivationTimestamp = time;
- mStopped = FALSE;
- mActive = TRUE;
- onActivate();
- }
- //-----------------------------------------------------------------------------
- // deactivate()
- //-----------------------------------------------------------------------------
- void LLMotion::deactivate()
- {
- mActive = FALSE;
- mPose.setWeight(0.f);
- if (mDeactivateCallback)
- {
- (*mDeactivateCallback)(mDeactivateCallbackUserData);
- mDeactivateCallback = NULL; // only call callback once
- mDeactivateCallbackUserData = NULL;
- }
- onDeactivate();
- }
- BOOL LLMotion::canDeprecate()
- {
- return TRUE;
- }
- // End