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Diffstat (limited to 'indra/newview/lldriverparam.cpp')
| -rw-r--r-- | indra/newview/lldriverparam.cpp | 435 |
1 files changed, 435 insertions, 0 deletions
diff --git a/indra/newview/lldriverparam.cpp b/indra/newview/lldriverparam.cpp new file mode 100644 index 0000000000..e0d1792e6c --- /dev/null +++ b/indra/newview/lldriverparam.cpp @@ -0,0 +1,435 @@ +/** + * @file lldriverparam.cpp + * @brief A visual parameter that drives (controls) other visual parameters. + * + * Copyright (c) 2002-$CurrentYear$, Linden Research, Inc. + * $License$ + */ + +#include "llviewerprecompiledheaders.h" + +#include "lldriverparam.h" + +#include "llfasttimer.h" + +//----------------------------------------------------------------------------- +// LLDriverParamInfo +//----------------------------------------------------------------------------- + +LLDriverParamInfo::LLDriverParamInfo() +{ +} + +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; +} + +//----------------------------------------------------------------------------- +// LLDriverParam +//----------------------------------------------------------------------------- + +LLDriverParam::LLDriverParam(LLVOAvatar *avatarp) + : mCurrentDistortionParam( NULL ), mAvatarp(avatarp) +{ +} + +LLDriverParam::~LLDriverParam() +{ +} + +BOOL LLDriverParam::setInfo(LLDriverParamInfo *info) +{ + llassert(mInfo == NULL); + if (info->mID < 0) + return FALSE; + mInfo = info; + mID = info->mID; + + setWeight(getDefaultWeight(), FALSE ); + + LLDriverParamInfo::entry_info_list_t::iterator iter; + mDriven.reserve(getInfo()->mDrivenInfoList.size()); + for (iter = getInfo()->mDrivenInfoList.begin(); iter != getInfo()->mDrivenInfoList.end(); iter++) + { + LLDrivenEntryInfo *driven_info = &(*iter); + S32 driven_id = driven_info->mDrivenID; + LLViewerVisualParam* param = (LLViewerVisualParam*)mAvatarp->getVisualParam( driven_id ); + if (param) + { + mDriven.push_back(LLDrivenEntry( param, driven_info )); + } + else + { + llerrs << "<driven> Unable to resolve driven parameter: " << driven_id << llendl; + mInfo = NULL; + return FALSE; + } + } + + return TRUE; +} + +#if 0 // obsolete +BOOL LLDriverParam::parseData(LLXmlTreeNode* node) +{ + LLDriverParamInfo* info = new LLDriverParamInfo; + + info->parseXml(node); + if (!setInfo(info)) + { + delete info; + return FALSE; + } + return TRUE; +} +#endif + +void LLDriverParam::setWeight(F32 weight, BOOL set_by_user) +{ + 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; + } + + driven->mParam->setWeight( driven_weight, set_by_user ); + 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; + } + + driven->mParam->setWeight( driven_weight, set_by_user ); + continue; + } + } + + driven_weight = getDrivenWeight(driven, mCurWeight); + driven->mParam->setWeight( driven_weight, set_by_user ); + } +} + +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 LLVector3 &LLDriverParam::getAvgDistortion() +{ + // It's not actually correct to take the average of averages, but it good enough here. + LLVector3 sum; + S32 count = 0; + for( entry_list_t::iterator iter = mDriven.begin(); iter != mDriven.end(); iter++ ) + { + LLDrivenEntry* driven = &(*iter); + sum += driven->mParam->getAvgDistortion(); + count++; + } + sum /= (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; +} + + +LLVector3 LLDriverParam::getVertexDistortion(S32 index, LLPolyMesh *poly_mesh) +{ + LLVector3 sum; + for( entry_list_t::iterator iter = mDriven.begin(); iter != mDriven.end(); iter++ ) + { + LLDrivenEntry* driven = &(*iter); + sum += driven->mParam->getVertexDistortion( index, poly_mesh ); + } + return sum; +} + +const LLVector3* LLDriverParam::getFirstDistortion(U32 *index, LLPolyMesh **poly_mesh) +{ + mCurrentDistortionParam = NULL; + const LLVector3* 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 LLVector3* 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; + } + } + + // We're already in the middle of a param's distortions, so get the next one. + const LLVector3* v = driven->mParam->getNextDistortion( index, poly_mesh ); + if( !v ) + { + // 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; +}; + +//----------------------------------------------------------------------------- +// setAnimationTarget() +//----------------------------------------------------------------------------- +void LLDriverParam::setAnimationTarget( F32 target_value, BOOL set_by_user ) +{ + LLVisualParam::setAnimationTarget(target_value, set_by_user); + + 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, set_by_user); + } +} + +//----------------------------------------------------------------------------- +// stopAnimating() +//----------------------------------------------------------------------------- +void LLDriverParam::stopAnimating(BOOL set_by_user) +{ + LLVisualParam::stopAnimating(set_by_user); + + for( entry_list_t::iterator iter = mDriven.begin(); iter != mDriven.end(); iter++ ) + { + LLDrivenEntry* driven = &(*iter); + driven->mParam->setAnimating(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; +} |