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diff --git a/indra/llappearance/lldriverparam.cpp b/indra/llappearance/lldriverparam.cpp
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+/**
+ * @file lldriverparam.cpp
+ * @brief A visual parameter that drives (controls) other visual parameters.
+ *
+ * $LicenseInfo:firstyear=2002&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * 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.
+ *
+ * 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.
+ *
+ * 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
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include "lldriverparam.h"
+
+#include "llavatarappearance.h"
+#include "llwearable.h"
+#include "llwearabledata.h"
+
+//-----------------------------------------------------------------------------
+// LLDriverParamInfo
+//-----------------------------------------------------------------------------
+
+LLDriverParamInfo::LLDriverParamInfo() :
+ mDriverParam(NULL)
+{
+}
+
+BOOL LLDriverParamInfo::parseXml(LLXmlTreeNode* node)
+{
+ llassert( node->hasName( "param" ) && node->getChildByName( "param_driver" ) );
+
+ if( !LLViewerVisualParamInfo::parseXml( node ))
+ return FALSE;
+
+ LLXmlTreeNode* param_driver_node = node->getChildByName( "param_driver" );
+ if( !param_driver_node )
+ return FALSE;
+
+ for (LLXmlTreeNode* child = param_driver_node->getChildByName( "driven" );
+ child;
+ child = param_driver_node->getNextNamedChild())
+ {
+ S32 driven_id;
+ static LLStdStringHandle id_string = LLXmlTree::addAttributeString("id");
+ if( child->getFastAttributeS32( id_string, driven_id ) )
+ {
+ F32 min1 = mMinWeight;
+ F32 max1 = mMaxWeight;
+ F32 max2 = max1;
+ F32 min2 = max1;
+
+ // driven ________ //
+ // ^ /| |\ //
+ // | / | | \ //
+ // | / | | \ //
+ // | / | | \ //
+ // | / | | \ //
+ //-------|----|-------|----|-------> driver //
+ // | min1 max1 max2 min2
+
+ static LLStdStringHandle min1_string = LLXmlTree::addAttributeString("min1");
+ child->getFastAttributeF32( min1_string, min1 ); // optional
+ static LLStdStringHandle max1_string = LLXmlTree::addAttributeString("max1");
+ child->getFastAttributeF32( max1_string, max1 ); // optional
+ static LLStdStringHandle max2_string = LLXmlTree::addAttributeString("max2");
+ child->getFastAttributeF32( max2_string, max2 ); // optional
+ static LLStdStringHandle min2_string = LLXmlTree::addAttributeString("min2");
+ child->getFastAttributeF32( min2_string, min2 ); // optional
+
+ // Push these on the front of the deque, so that we can construct
+ // them in order later (faster)
+ mDrivenInfoList.push_front( LLDrivenEntryInfo( driven_id, min1, max1, max2, min2 ) );
+ }
+ else
+ {
+ llerrs << "<driven> Unable to resolve driven parameter: " << driven_id << llendl;
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+//virtual
+void LLDriverParamInfo::toStream(std::ostream &out)
+{
+ LLViewerVisualParamInfo::toStream(out);
+ out << "driver" << "\t";
+ out << mDrivenInfoList.size() << "\t";
+ for (entry_info_list_t::iterator iter = mDrivenInfoList.begin(); iter != mDrivenInfoList.end(); iter++)
+ {
+ LLDrivenEntryInfo driven = *iter;
+ out << driven.mDrivenID << "\t";
+ }
+
+ out << std::endl;
+
+ if(mDriverParam && mDriverParam->getAvatarAppearance()->isSelf() &&
+ mDriverParam->getAvatarAppearance()->isValid())
+ {
+ for (entry_info_list_t::iterator iter = mDrivenInfoList.begin(); iter != mDrivenInfoList.end(); iter++)
+ {
+ LLDrivenEntryInfo driven = *iter;
+ LLViewerVisualParam *param =
+ (LLViewerVisualParam*)mDriverParam->getAvatarAppearance()->getVisualParam(driven.mDrivenID);
+ if (param)
+ {
+ param->getInfo()->toStream(out);
+ if (param->getWearableType() != mWearableType)
+ {
+ if(param->getCrossWearable())
+ {
+ out << "cross-wearable" << "\t";
+ }
+ else
+ {
+ out << "ERROR!" << "\t";
+ }
+ }
+ else
+ {
+ out << "valid" << "\t";
+ }
+ }
+ else
+ {
+ llwarns << "could not get parameter " << driven.mDrivenID << " from avatar "
+ << mDriverParam->getAvatarAppearance()
+ << " for driver parameter " << getID() << llendl;
+ }
+ out << std::endl;
+ }
+ }
+}
+
+//-----------------------------------------------------------------------------
+// LLDriverParam
+//-----------------------------------------------------------------------------
+
+LLDriverParam::LLDriverParam(LLAvatarAppearance *appearance, LLWearable* wearable /* = NULL */) :
+ mCurrentDistortionParam( NULL ),
+ mAvatarAppearance(appearance),
+ mWearablep(wearable)
+{
+ llassert(mAvatarAppearance);
+ if (mWearablep)
+ {
+ llassert(mAvatarAppearance->isSelf());
+ }
+ mDefaultVec.clear();
+}
+
+LLDriverParam::~LLDriverParam()
+{
+}
+
+BOOL LLDriverParam::setInfo(LLDriverParamInfo *info)
+{
+ llassert(mInfo == NULL);
+ if (info->mID < 0)
+ return FALSE;
+ mInfo = info;
+ mID = info->mID;
+ info->mDriverParam = this;
+
+ setWeight(getDefaultWeight(), FALSE );
+
+ return TRUE;
+}
+
+/*virtual*/ LLViewerVisualParam* LLDriverParam::cloneParam(LLWearable* wearable) const
+{
+ llassert(wearable);
+ LLDriverParam *new_param = new LLDriverParam(mAvatarAppearance, wearable);
+ // FIXME DRANO this clobbers mWearablep, which means any code
+ // currently using mWearablep is wrong, or at least untested.
+ *new_param = *this;
+ //new_param->mWearablep = wearable;
+// new_param->mDriven.clear(); // clear driven list to avoid overwriting avatar driven params from wearables.
+ return new_param;
+}
+
+void LLDriverParam::setWeight(F32 weight, BOOL upload_bake)
+{
+ F32 min_weight = getMinWeight();
+ F32 max_weight = getMaxWeight();
+ if (mIsAnimating)
+ {
+ // allow overshoot when animating
+ mCurWeight = weight;
+ }
+ else
+ {
+ mCurWeight = llclamp(weight, min_weight, max_weight);
+ }
+
+ // driven ________
+ // ^ /| |\ ^
+ // | / | | \ |
+ // | / | | \ |
+ // | / | | \ |
+ // | / | | \ |
+ //-------|----|-------|----|-------> driver
+ // | min1 max1 max2 min2
+
+ for( entry_list_t::iterator iter = mDriven.begin(); iter != mDriven.end(); iter++ )
+ {
+ LLDrivenEntry* driven = &(*iter);
+ LLDrivenEntryInfo* info = driven->mInfo;
+
+ F32 driven_weight = 0.f;
+ F32 driven_min = driven->mParam->getMinWeight();
+ F32 driven_max = driven->mParam->getMaxWeight();
+
+ if (mIsAnimating)
+ {
+ // driven param doesn't interpolate (textures, for example)
+ if (!driven->mParam->getAnimating())
+ {
+ continue;
+ }
+ if( mCurWeight < info->mMin1 )
+ {
+ if (info->mMin1 == min_weight)
+ {
+ if (info->mMin1 == info->mMax1)
+ {
+ driven_weight = driven_max;
+ }
+ else
+ {
+ //up slope extrapolation
+ F32 t = (mCurWeight - info->mMin1) / (info->mMax1 - info->mMin1 );
+ driven_weight = driven_min + t * (driven_max - driven_min);
+ }
+ }
+ else
+ {
+ driven_weight = driven_min;
+ }
+
+ setDrivenWeight(driven,driven_weight,upload_bake);
+ continue;
+ }
+ else
+ if ( mCurWeight > info->mMin2 )
+ {
+ if (info->mMin2 == max_weight)
+ {
+ if (info->mMin2 == info->mMax2)
+ {
+ driven_weight = driven_max;
+ }
+ else
+ {
+ //down slope extrapolation
+ F32 t = (mCurWeight - info->mMax2) / (info->mMin2 - info->mMax2 );
+ driven_weight = driven_max + t * (driven_min - driven_max);
+ }
+ }
+ else
+ {
+ driven_weight = driven_min;
+ }
+
+ setDrivenWeight(driven,driven_weight,upload_bake);
+ continue;
+ }
+ }
+
+ driven_weight = getDrivenWeight(driven, mCurWeight);
+ setDrivenWeight(driven,driven_weight,upload_bake);
+ }
+}
+
+F32 LLDriverParam::getTotalDistortion()
+{
+ F32 sum = 0.f;
+ for( entry_list_t::iterator iter = mDriven.begin(); iter != mDriven.end(); iter++ )
+ {
+ LLDrivenEntry* driven = &(*iter);
+ sum += driven->mParam->getTotalDistortion();
+ }
+
+ return sum;
+}
+
+const LLVector4a &LLDriverParam::getAvgDistortion()
+{
+ // It's not actually correct to take the average of averages, but it good enough here.
+ LLVector4a sum;
+ sum.clear();
+ S32 count = 0;
+ for( entry_list_t::iterator iter = mDriven.begin(); iter != mDriven.end(); iter++ )
+ {
+ LLDrivenEntry* driven = &(*iter);
+ sum.add(driven->mParam->getAvgDistortion());
+ count++;
+ }
+ sum.mul( 1.f/(F32)count);
+
+ mDefaultVec = sum;
+ return mDefaultVec;
+}
+
+F32 LLDriverParam::getMaxDistortion()
+{
+ F32 max = 0.f;
+ for( entry_list_t::iterator iter = mDriven.begin(); iter != mDriven.end(); iter++ )
+ {
+ LLDrivenEntry* driven = &(*iter);
+ F32 param_max = driven->mParam->getMaxDistortion();
+ if( param_max > max )
+ {
+ max = param_max;
+ }
+ }
+
+ return max;
+}
+
+
+LLVector4a LLDriverParam::getVertexDistortion(S32 index, LLPolyMesh *poly_mesh)
+{
+ LLVector4a sum;
+ sum.clear();
+ for( entry_list_t::iterator iter = mDriven.begin(); iter != mDriven.end(); iter++ )
+ {
+ LLDrivenEntry* driven = &(*iter);
+ sum.add(driven->mParam->getVertexDistortion( index, poly_mesh ));
+ }
+ return sum;
+}
+
+const LLVector4a* LLDriverParam::getFirstDistortion(U32 *index, LLPolyMesh **poly_mesh)
+{
+ mCurrentDistortionParam = NULL;
+ const LLVector4a* v = NULL;
+ for( entry_list_t::iterator iter = mDriven.begin(); iter != mDriven.end(); iter++ )
+ {
+ LLDrivenEntry* driven = &(*iter);
+ v = driven->mParam->getFirstDistortion( index, poly_mesh );
+ if( v )
+ {
+ mCurrentDistortionParam = driven->mParam;
+ break;
+ }
+ }
+
+ return v;
+};
+
+const LLVector4a* LLDriverParam::getNextDistortion(U32 *index, LLPolyMesh **poly_mesh)
+{
+ llassert( mCurrentDistortionParam );
+ if( !mCurrentDistortionParam )
+ {
+ return NULL;
+ }
+
+ LLDrivenEntry* driven = NULL;
+ entry_list_t::iterator iter;
+
+ // Set mDriven iteration to the right point
+ for( iter = mDriven.begin(); iter != mDriven.end(); iter++ )
+ {
+ driven = &(*iter);
+ if( driven->mParam == mCurrentDistortionParam )
+ {
+ break;
+ }
+ }
+
+ llassert(driven);
+ if (!driven)
+ {
+ return NULL; // shouldn't happen, but...
+ }
+
+ // We're already in the middle of a param's distortions, so get the next one.
+ const LLVector4a* v = driven->mParam->getNextDistortion( index, poly_mesh );
+ if( (!v) && (iter != mDriven.end()) )
+ {
+ // This param is finished, so start the next param. It might not have any
+ // distortions, though, so we have to loop to find the next param that does.
+ for( iter++; iter != mDriven.end(); iter++ )
+ {
+ driven = &(*iter);
+ v = driven->mParam->getFirstDistortion( index, poly_mesh );
+ if( v )
+ {
+ mCurrentDistortionParam = driven->mParam;
+ break;
+ }
+ }
+ }
+
+ return v;
+};
+
+S32 LLDriverParam::getDrivenParamsCount() const
+{
+ return mDriven.size();
+}
+
+const LLViewerVisualParam* LLDriverParam::getDrivenParam(S32 index) const
+{
+ if (0 > index || index >= mDriven.size())
+ {
+ return NULL;
+ }
+ return mDriven[index].mParam;
+}
+
+//-----------------------------------------------------------------------------
+// setAnimationTarget()
+//-----------------------------------------------------------------------------
+void LLDriverParam::setAnimationTarget( F32 target_value, BOOL upload_bake )
+{
+ LLVisualParam::setAnimationTarget(target_value, upload_bake);
+
+ for( entry_list_t::iterator iter = mDriven.begin(); iter != mDriven.end(); iter++ )
+ {
+ LLDrivenEntry* driven = &(*iter);
+ F32 driven_weight = getDrivenWeight(driven, mTargetWeight);
+
+ // this isn't normally necessary, as driver params handle interpolation of their driven params
+ // but texture params need to know to assume their final value at beginning of interpolation
+ driven->mParam->setAnimationTarget(driven_weight, upload_bake);
+ }
+}
+
+//-----------------------------------------------------------------------------
+// stopAnimating()
+//-----------------------------------------------------------------------------
+void LLDriverParam::stopAnimating(BOOL upload_bake)
+{
+ LLVisualParam::stopAnimating(upload_bake);
+
+ for( entry_list_t::iterator iter = mDriven.begin(); iter != mDriven.end(); iter++ )
+ {
+ LLDrivenEntry* driven = &(*iter);
+ driven->mParam->setAnimating(FALSE);
+ }
+}
+
+/*virtual*/
+BOOL LLDriverParam::linkDrivenParams(visual_param_mapper mapper, BOOL only_cross_params)
+{
+ BOOL success = TRUE;
+ LLDriverParamInfo::entry_info_list_t::iterator iter;
+ for (iter = getInfo()->mDrivenInfoList.begin(); iter != getInfo()->mDrivenInfoList.end(); ++iter)
+ {
+ LLDrivenEntryInfo *driven_info = &(*iter);
+ S32 driven_id = driven_info->mDrivenID;
+
+ // check for already existing links. Do not overwrite.
+ BOOL found = FALSE;
+ for (entry_list_t::iterator driven_iter = mDriven.begin(); driven_iter != mDriven.end() && !found; ++driven_iter)
+ {
+ if (driven_iter->mInfo->mDrivenID == driven_id)
+ {
+ found = TRUE;
+ }
+ }
+
+ if (!found)
+ {
+ LLViewerVisualParam* param = (LLViewerVisualParam*)mapper(driven_id);
+ if (param) param->setParamLocation(this->getParamLocation());
+ bool push = param && (!only_cross_params || param->getCrossWearable());
+ if (push)
+ {
+ mDriven.push_back(LLDrivenEntry( param, driven_info ));
+ }
+ else
+ {
+ success = FALSE;
+ }
+ }
+ }
+
+ return success;
+}
+
+void LLDriverParam::resetDrivenParams()
+{
+ mDriven.clear();
+ mDriven.reserve(getInfo()->mDrivenInfoList.size());
+}
+
+void LLDriverParam::updateCrossDrivenParams(LLWearableType::EType driven_type)
+{
+ bool needs_update = (getWearableType()==driven_type);
+
+ // if the driver has a driven entry for the passed-in wearable type, we need to refresh the value
+ for( entry_list_t::iterator iter = mDriven.begin(); iter != mDriven.end(); iter++ )
+ {
+ LLDrivenEntry* driven = &(*iter);
+ if (driven && driven->mParam && driven->mParam->getCrossWearable() && driven->mParam->getWearableType() == driven_type)
+ {
+ needs_update = true;
+ }
+ }
+
+
+ if (needs_update)
+ {
+ LLWearableType::EType driver_type = (LLWearableType::EType)getWearableType();
+
+ // If we've gotten here, we've added a new wearable of type "type"
+ // Thus this wearable needs to get updates from the driver wearable.
+ // The call to setVisualParamWeight seems redundant, but is necessary
+ // as the number of driven wearables has changed since the last update. -Nyx
+ LLWearable *wearable = mAvatarAppearance->getWearableData()->getTopWearable(driver_type);
+ if (wearable)
+ {
+ wearable->setVisualParamWeight(mID, wearable->getVisualParamWeight(mID), false);
+ }
+ }
+}
+
+
+//-----------------------------------------------------------------------------
+// getDrivenWeight()
+//-----------------------------------------------------------------------------
+F32 LLDriverParam::getDrivenWeight(const LLDrivenEntry* driven, F32 input_weight)
+{
+ F32 min_weight = getMinWeight();
+ F32 max_weight = getMaxWeight();
+ const LLDrivenEntryInfo* info = driven->mInfo;
+
+ F32 driven_weight = 0.f;
+ F32 driven_min = driven->mParam->getMinWeight();
+ F32 driven_max = driven->mParam->getMaxWeight();
+
+ if( input_weight <= info->mMin1 )
+ {
+ if( info->mMin1 == info->mMax1 &&
+ info->mMin1 <= min_weight)
+ {
+ driven_weight = driven_max;
+ }
+ else
+ {
+ driven_weight = driven_min;
+ }
+ }
+ else
+ if( input_weight <= info->mMax1 )
+ {
+ F32 t = (input_weight - info->mMin1) / (info->mMax1 - info->mMin1 );
+ driven_weight = driven_min + t * (driven_max - driven_min);
+ }
+ else
+ if( input_weight <= info->mMax2 )
+ {
+ driven_weight = driven_max;
+ }
+ else
+ if( input_weight <= info->mMin2 )
+ {
+ F32 t = (input_weight - info->mMax2) / (info->mMin2 - info->mMax2 );
+ driven_weight = driven_max + t * (driven_min - driven_max);
+ }
+ else
+ {
+ if (info->mMax2 >= max_weight)
+ {
+ driven_weight = driven_max;
+ }
+ else
+ {
+ driven_weight = driven_min;
+ }
+ }
+
+ return driven_weight;
+}
+
+void LLDriverParam::setDrivenWeight(LLDrivenEntry *driven, F32 driven_weight, bool upload_bake)
+{
+ bool use_self = false;
+ if(mWearablep &&
+ mAvatarAppearance->isValid() &&
+ driven->mParam->getCrossWearable())
+ {
+ LLWearable* wearable = dynamic_cast<LLWearable*> (mWearablep);
+ if (mAvatarAppearance->getWearableData()->isOnTop(wearable))
+ {
+ use_self = true;
+ }
+ }
+
+ if (use_self)
+ {
+ // call setWeight through LLVOAvatarSelf so other wearables can be updated with the correct values
+ mAvatarAppearance->setVisualParamWeight( (LLVisualParam*)driven->mParam, driven_weight, upload_bake );
+ }
+ else
+ {
+ driven->mParam->setWeight( driven_weight, upload_bake );
+ }
+}
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