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+/**
+ * @file llmodelloader.cpp
+ * @brief LLModelLoader class implementation
+ *
+ * $LicenseInfo:firstyear=2004&license=viewerlgpl$
+ * 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 "llmodelloader.h"
+#include "llsdserialize.h"
+#include "lljoint.h"
+#include "llcallbacklist.h"
+
+#include "glh/glh_linear.h"
+#include "llmatrix4a.h"
+#include <boost/bind.hpp>
+
+std::list<LLModelLoader*> LLModelLoader::sActiveLoaderList;
+
+void stretch_extents(LLModel* model, LLMatrix4a& mat, LLVector4a& min, LLVector4a& max, BOOL& first_transform)
+{
+ LLVector4a box[] =
+ {
+ LLVector4a(-1, 1,-1),
+ LLVector4a(-1, 1, 1),
+ LLVector4a(-1,-1,-1),
+ LLVector4a(-1,-1, 1),
+ LLVector4a( 1, 1,-1),
+ LLVector4a( 1, 1, 1),
+ LLVector4a( 1,-1,-1),
+ LLVector4a( 1,-1, 1),
+ };
+
+ for (S32 j = 0; j < model->getNumVolumeFaces(); ++j)
+ {
+ const LLVolumeFace& face = model->getVolumeFace(j);
+
+ LLVector4a center;
+ center.setAdd(face.mExtents[0], face.mExtents[1]);
+ center.mul(0.5f);
+ LLVector4a size;
+ size.setSub(face.mExtents[1],face.mExtents[0]);
+ size.mul(0.5f);
+
+ for (U32 i = 0; i < 8; i++)
+ {
+ LLVector4a t;
+ t.setMul(size, box[i]);
+ t.add(center);
+
+ LLVector4a v;
+
+ mat.affineTransform(t, v);
+
+ if (first_transform)
+ {
+ first_transform = FALSE;
+ min = max = v;
+ }
+ else
+ {
+ update_min_max(min, max, v);
+ }
+ }
+ }
+}
+
+void stretch_extents(LLModel* model, LLMatrix4& mat, LLVector3& min, LLVector3& max, BOOL& first_transform)
+{
+ LLVector4a mina, maxa;
+ LLMatrix4a mata;
+
+ mata.loadu(mat);
+ mina.load3(min.mV);
+ maxa.load3(max.mV);
+
+ stretch_extents(model, mata, mina, maxa, first_transform);
+
+ min.set(mina.getF32ptr());
+ max.set(maxa.getF32ptr());
+}
+
+//-----------------------------------------------------------------------------
+// LLModelLoader
+//-----------------------------------------------------------------------------
+LLModelLoader::LLModelLoader(
+ std::string filename,
+ S32 lod,
+ load_callback_t load_cb,
+ joint_lookup_func_t joint_lookup_func,
+ texture_load_func_t texture_load_func,
+ state_callback_t state_cb,
+ void* opaque_userdata,
+ JointTransformMap& jointMap,
+ JointSet& jointsFromNodes )
+: mJointList( jointMap )
+, mJointsFromNode( jointsFromNodes )
+, LLThread("Model Loader")
+, mFilename(filename)
+, mLod(lod)
+, mTrySLM(false)
+, mFirstTransform(TRUE)
+, mNumOfFetchingTextures(0)
+, mLoadCallback(load_cb)
+, mJointLookupFunc(joint_lookup_func)
+, mTextureLoadFunc(texture_load_func)
+, mStateCallback(state_cb)
+, mOpaqueData(opaque_userdata)
+, mRigParityWithScene(false)
+, mRigValidJointUpload(false)
+, mLegacyRigValid(false)
+, mNoNormalize(false)
+, mNoOptimize(false)
+, mCacheOnlyHitIfRigged(false)
+{
+ mJointMap["mPelvis"] = "mPelvis";
+ mJointMap["mTorso"] = "mTorso";
+ mJointMap["mChest"] = "mChest";
+ mJointMap["mNeck"] = "mNeck";
+ mJointMap["mHead"] = "mHead";
+ mJointMap["mSkull"] = "mSkull";
+ mJointMap["mEyeRight"] = "mEyeRight";
+ mJointMap["mEyeLeft"] = "mEyeLeft";
+ mJointMap["mCollarLeft"] = "mCollarLeft";
+ mJointMap["mShoulderLeft"] = "mShoulderLeft";
+ mJointMap["mElbowLeft"] = "mElbowLeft";
+ mJointMap["mWristLeft"] = "mWristLeft";
+ mJointMap["mCollarRight"] = "mCollarRight";
+ mJointMap["mShoulderRight"] = "mShoulderRight";
+ mJointMap["mElbowRight"] = "mElbowRight";
+ mJointMap["mWristRight"] = "mWristRight";
+ mJointMap["mHipRight"] = "mHipRight";
+ mJointMap["mKneeRight"] = "mKneeRight";
+ mJointMap["mAnkleRight"] = "mAnkleRight";
+ mJointMap["mFootRight"] = "mFootRight";
+ mJointMap["mToeRight"] = "mToeRight";
+ mJointMap["mHipLeft"] = "mHipLeft";
+ mJointMap["mKneeLeft"] = "mKneeLeft";
+ mJointMap["mAnkleLeft"] = "mAnkleLeft";
+ mJointMap["mFootLeft"] = "mFootLeft";
+ mJointMap["mToeLeft"] = "mToeLeft";
+
+ mJointMap["avatar_mPelvis"] = "mPelvis";
+ mJointMap["avatar_mTorso"] = "mTorso";
+ mJointMap["avatar_mChest"] = "mChest";
+ mJointMap["avatar_mNeck"] = "mNeck";
+ mJointMap["avatar_mHead"] = "mHead";
+ mJointMap["avatar_mSkull"] = "mSkull";
+ mJointMap["avatar_mEyeRight"] = "mEyeRight";
+ mJointMap["avatar_mEyeLeft"] = "mEyeLeft";
+ mJointMap["avatar_mCollarLeft"] = "mCollarLeft";
+ mJointMap["avatar_mShoulderLeft"] = "mShoulderLeft";
+ mJointMap["avatar_mElbowLeft"] = "mElbowLeft";
+ mJointMap["avatar_mWristLeft"] = "mWristLeft";
+ mJointMap["avatar_mCollarRight"] = "mCollarRight";
+ mJointMap["avatar_mShoulderRight"] = "mShoulderRight";
+ mJointMap["avatar_mElbowRight"] = "mElbowRight";
+ mJointMap["avatar_mWristRight"] = "mWristRight";
+ mJointMap["avatar_mHipRight"] = "mHipRight";
+ mJointMap["avatar_mKneeRight"] = "mKneeRight";
+ mJointMap["avatar_mAnkleRight"] = "mAnkleRight";
+ mJointMap["avatar_mFootRight"] = "mFootRight";
+ mJointMap["avatar_mToeRight"] = "mToeRight";
+ mJointMap["avatar_mHipLeft"] = "mHipLeft";
+ mJointMap["avatar_mKneeLeft"] = "mKneeLeft";
+ mJointMap["avatar_mAnkleLeft"] = "mAnkleLeft";
+ mJointMap["avatar_mFootLeft"] = "mFootLeft";
+ mJointMap["avatar_mToeLeft"] = "mToeLeft";
+
+
+ mJointMap["hip"] = "mPelvis";
+ mJointMap["abdomen"] = "mTorso";
+ mJointMap["chest"] = "mChest";
+ mJointMap["neck"] = "mNeck";
+ mJointMap["head"] = "mHead";
+ mJointMap["figureHair"] = "mSkull";
+ mJointMap["lCollar"] = "mCollarLeft";
+ mJointMap["lShldr"] = "mShoulderLeft";
+ mJointMap["lForeArm"] = "mElbowLeft";
+ mJointMap["lHand"] = "mWristLeft";
+ mJointMap["rCollar"] = "mCollarRight";
+ mJointMap["rShldr"] = "mShoulderRight";
+ mJointMap["rForeArm"] = "mElbowRight";
+ mJointMap["rHand"] = "mWristRight";
+ mJointMap["rThigh"] = "mHipRight";
+ mJointMap["rShin"] = "mKneeRight";
+ mJointMap["rFoot"] = "mFootRight";
+ mJointMap["lThigh"] = "mHipLeft";
+ mJointMap["lShin"] = "mKneeLeft";
+ mJointMap["lFoot"] = "mFootLeft";
+
+ //move into joint mapper class
+ //1. joints for joint offset verification
+ mMasterJointList.push_front("mPelvis");
+ mMasterJointList.push_front("mTorso");
+ mMasterJointList.push_front("mChest");
+ mMasterJointList.push_front("mNeck");
+ mMasterJointList.push_front("mHead");
+ mMasterJointList.push_front("mCollarLeft");
+ mMasterJointList.push_front("mShoulderLeft");
+ mMasterJointList.push_front("mElbowLeft");
+ mMasterJointList.push_front("mWristLeft");
+ mMasterJointList.push_front("mCollarRight");
+ mMasterJointList.push_front("mShoulderRight");
+ mMasterJointList.push_front("mElbowRight");
+ mMasterJointList.push_front("mWristRight");
+ mMasterJointList.push_front("mHipRight");
+ mMasterJointList.push_front("mKneeRight");
+ mMasterJointList.push_front("mFootRight");
+ mMasterJointList.push_front("mHipLeft");
+ mMasterJointList.push_front("mKneeLeft");
+ mMasterJointList.push_front("mFootLeft");
+
+ //2. legacy joint list - used to verify rigs that will not be using joint offsets
+ mMasterLegacyJointList.push_front("mPelvis");
+ mMasterLegacyJointList.push_front("mTorso");
+ mMasterLegacyJointList.push_front("mChest");
+ mMasterLegacyJointList.push_front("mNeck");
+ mMasterLegacyJointList.push_front("mHead");
+ mMasterLegacyJointList.push_front("mHipRight");
+ mMasterLegacyJointList.push_front("mKneeRight");
+ mMasterLegacyJointList.push_front("mFootRight");
+ mMasterLegacyJointList.push_front("mHipLeft");
+ mMasterLegacyJointList.push_front("mKneeLeft");
+ mMasterLegacyJointList.push_front("mFootLeft");
+
+ assert_main_thread();
+ sActiveLoaderList.push_back(this) ;
+}
+
+LLModelLoader::~LLModelLoader()
+{
+ assert_main_thread();
+ sActiveLoaderList.remove(this);
+}
+
+void LLModelLoader::run()
+{
+ doLoadModel();
+ doOnIdleOneTime(boost::bind(&LLModelLoader::loadModelCallback,this));
+}
+
+bool LLModelLoader::doLoadModel()
+{
+ //first, look for a .slm file of the same name that was modified later
+ //than the .dae
+
+ if (mTrySLM)
+ {
+ std::string filename = mFilename;
+
+ std::string::size_type i = filename.rfind(".");
+ if (i != std::string::npos)
+ {
+ filename.replace(i, filename.size()-1, ".slm");
+ llstat slm_status;
+ if (LLFile::stat(filename, &slm_status) == 0)
+ { //slm file exists
+ llstat dae_status;
+ if (LLFile::stat(mFilename, &dae_status) != 0 ||
+ dae_status.st_mtime < slm_status.st_mtime)
+ {
+ if (loadFromSLM(filename))
+ { //slm successfully loaded, if this fails, fall through and
+ //try loading from dae
+
+ mLod = -1; //successfully loading from an slm implicitly sets all
+ //LoDs
+ return true;
+ }
+ }
+ }
+ }
+ }
+
+ return OpenFile(mFilename);
+}
+
+void LLModelLoader::setLoadState(U32 state)
+{
+ mStateCallback(state, mOpaqueData);
+}
+
+bool LLModelLoader::loadFromSLM(const std::string& filename)
+{
+ //only need to populate mScene with data from slm
+ llstat stat;
+
+ if (LLFile::stat(filename, &stat))
+ { //file does not exist
+ return false;
+ }
+
+ S32 file_size = (S32) stat.st_size;
+
+ llifstream ifstream(filename.c_str(), std::ifstream::in | std::ifstream::binary);
+ LLSD data;
+ LLSDSerialize::fromBinary(data, ifstream, file_size);
+ ifstream.close();
+
+ //build model list for each LoD
+ model_list model[LLModel::NUM_LODS];
+
+ if (data["version"].asInteger() != SLM_SUPPORTED_VERSION)
+ { //unsupported version
+ return false;
+ }
+
+ LLSD& mesh = data["mesh"];
+
+ LLVolumeParams volume_params;
+ volume_params.setType(LL_PCODE_PROFILE_SQUARE, LL_PCODE_PATH_LINE);
+
+ for (S32 lod = 0; lod < LLModel::NUM_LODS; ++lod)
+ {
+ for (U32 i = 0; i < mesh.size(); ++i)
+ {
+ std::stringstream str(mesh[i].asString());
+ LLPointer<LLModel> loaded_model = new LLModel(volume_params, (F32) lod);
+ if (loaded_model->loadModel(str))
+ {
+ loaded_model->mLocalID = i;
+ model[lod].push_back(loaded_model);
+
+ if (lod == LLModel::LOD_HIGH)
+ {
+ if (!loaded_model->mSkinInfo.mJointNames.empty())
+ {
+ //check to see if rig is valid
+ critiqueRigForUploadApplicability( loaded_model->mSkinInfo.mJointNames );
+ }
+ else if (mCacheOnlyHitIfRigged)
+ {
+ return false;
+ }
+ }
+ }
+ }
+ }
+
+ if (model[LLModel::LOD_HIGH].empty())
+ { //failed to load high lod
+ return false;
+ }
+
+ //load instance list
+ model_instance_list instance_list;
+
+ LLSD& instance = data["instance"];
+
+ for (U32 i = 0; i < instance.size(); ++i)
+ {
+ //deserialize instance list
+ instance_list.push_back(LLModelInstance(instance[i]));
+
+ //match up model instance pointers
+ S32 idx = instance_list[i].mLocalMeshID;
+ std::string instance_label = instance_list[i].mLabel;
+
+ for (U32 lod = 0; lod < LLModel::NUM_LODS; ++lod)
+ {
+ if (!model[lod].empty())
+ {
+ if (idx >= model[lod].size())
+ {
+ if (model[lod].size())
+ {
+ instance_list[i].mLOD[lod] = model[lod][0];
+ }
+ else
+ {
+ instance_list[i].mLOD[lod] = NULL;
+ }
+ continue;
+ }
+
+ if (model[lod][idx]
+ && model[lod][idx]->mLabel.empty()
+ && !instance_label.empty())
+ {
+ // restore model names
+ std::string name = instance_label;
+ switch (lod)
+ {
+ case LLModel::LOD_IMPOSTOR: name += "_LOD0"; break;
+ case LLModel::LOD_LOW: name += "_LOD1"; break;
+ case LLModel::LOD_MEDIUM: name += "_LOD2"; break;
+ case LLModel::LOD_PHYSICS: name += "_PHYS"; break;
+ case LLModel::LOD_HIGH: break;
+ }
+ model[lod][idx]->mLabel = name;
+ }
+
+ instance_list[i].mLOD[lod] = model[lod][idx];
+ }
+ }
+
+ if (!instance_list[i].mModel)
+ instance_list[i].mModel = model[LLModel::LOD_HIGH][idx];
+ }
+
+ // Set name for UI to use
+ std::string name = data["name"];
+ if (!name.empty())
+ {
+ model[LLModel::LOD_HIGH][0]->mRequestedLabel = name;
+ }
+
+
+ //convert instance_list to mScene
+ mFirstTransform = TRUE;
+ for (U32 i = 0; i < instance_list.size(); ++i)
+ {
+ LLModelInstance& cur_instance = instance_list[i];
+ mScene[cur_instance.mTransform].push_back(cur_instance);
+ stretch_extents(cur_instance.mModel, cur_instance.mTransform, mExtents[0], mExtents[1], mFirstTransform);
+ }
+
+ setLoadState( DONE );
+
+ return true;
+}
+
+//static
+bool LLModelLoader::isAlive(LLModelLoader* loader)
+{
+ if(!loader)
+ {
+ return false ;
+ }
+
+ std::list<LLModelLoader*>::iterator iter = sActiveLoaderList.begin() ;
+ for(; iter != sActiveLoaderList.end() && (*iter) != loader; ++iter) ;
+
+ return *iter == loader ;
+}
+
+void LLModelLoader::loadModelCallback()
+{
+ mLoadCallback(mScene,mModelList,mLod, mOpaqueData);
+
+ while (!isStopped())
+ { //wait until this thread is stopped before deleting self
+ apr_sleep(100);
+ }
+
+ //double check if "this" is valid before deleting it, in case it is aborted during running.
+ if(!isAlive(this))
+ {
+ return ;
+ }
+
+ delete this;
+}
+
+//-----------------------------------------------------------------------------
+// critiqueRigForUploadApplicability()
+//-----------------------------------------------------------------------------
+void LLModelLoader::critiqueRigForUploadApplicability( const std::vector<std::string> &jointListFromAsset )
+{
+ critiqueJointToNodeMappingFromScene();
+
+ //Determines the following use cases for a rig:
+ //1. It is suitable for upload with skin weights & joint positions, or
+ //2. It is suitable for upload as standard av with just skin weights
+
+ bool isJointPositionUploadOK = isRigSuitableForJointPositionUpload( jointListFromAsset );
+ bool isRigLegacyOK = isRigLegacy( jointListFromAsset );
+
+ //It's OK that both could end up being true, both default to false
+ if ( isJointPositionUploadOK )
+ {
+ setRigValidForJointPositionUpload( true );
+ }
+
+ if ( isRigLegacyOK)
+ {
+ setLegacyRigValid( true );
+ }
+
+}
+//-----------------------------------------------------------------------------
+// critiqueJointToNodeMappingFromScene()
+//-----------------------------------------------------------------------------
+void LLModelLoader::critiqueJointToNodeMappingFromScene( void )
+{
+ //Do the actual nodes back the joint listing from the dae?
+ //if yes then this is a fully rigged asset, otherwise it's just a partial rig
+
+ JointSet::iterator jointsFromNodeIt = mJointsFromNode.begin();
+ JointSet::iterator jointsFromNodeEndIt = mJointsFromNode.end();
+ bool result = true;
+
+ if ( !mJointsFromNode.empty() )
+ {
+ for ( ;jointsFromNodeIt!=jointsFromNodeEndIt;++jointsFromNodeIt )
+ {
+ std::string name = *jointsFromNodeIt;
+ if ( mJointTransformMap.find( name ) != mJointTransformMap.end() )
+ {
+ continue;
+ }
+ else
+ {
+ LL_INFOS() <<"critiqueJointToNodeMappingFromScene is missing a: " << name << LL_ENDL;
+ result = false;
+ }
+ }
+ }
+ else
+ {
+ result = false;
+ }
+
+ //Determines the following use cases for a rig:
+ //1. Full av rig w/1-1 mapping from the scene and joint array
+ //2. Partial rig but w/o parity between the scene and joint array
+ if ( result )
+ {
+ setRigWithSceneParity( true );
+ }
+}
+//-----------------------------------------------------------------------------
+// isRigLegacy()
+//-----------------------------------------------------------------------------
+bool LLModelLoader::isRigLegacy( const std::vector<std::string> &jointListFromAsset )
+{
+ //No joints in asset
+ if ( jointListFromAsset.size() == 0 )
+ {
+ return false;
+ }
+
+ bool result = false;
+
+ JointSet :: const_iterator masterJointIt = mMasterLegacyJointList.begin();
+ JointSet :: const_iterator masterJointEndIt = mMasterLegacyJointList.end();
+
+ std::vector<std::string> :: const_iterator modelJointIt = jointListFromAsset.begin();
+ std::vector<std::string> :: const_iterator modelJointItEnd = jointListFromAsset.end();
+
+ for ( ;masterJointIt!=masterJointEndIt;++masterJointIt )
+ {
+ result = false;
+ modelJointIt = jointListFromAsset.begin();
+
+ for ( ;modelJointIt!=modelJointItEnd; ++modelJointIt )
+ {
+ if ( *masterJointIt == *modelJointIt )
+ {
+ result = true;
+ break;
+ }
+ }
+ if ( !result )
+ {
+ LL_INFOS() <<" Asset did not contain the joint (if you're u/l a fully rigged asset w/joint positions - it is required)." << *masterJointIt<< LL_ENDL;
+ break;
+ }
+ }
+ return result;
+}
+//-----------------------------------------------------------------------------
+// isRigSuitableForJointPositionUpload()
+//-----------------------------------------------------------------------------
+bool LLModelLoader::isRigSuitableForJointPositionUpload( const std::vector<std::string> &jointListFromAsset )
+{
+ bool result = false;
+
+ JointSet :: const_iterator masterJointIt = mMasterJointList.begin();
+ JointSet :: const_iterator masterJointEndIt = mMasterJointList.end();
+
+ std::vector<std::string> :: const_iterator modelJointIt = jointListFromAsset.begin();
+ std::vector<std::string> :: const_iterator modelJointItEnd = jointListFromAsset.end();
+
+ for ( ;masterJointIt!=masterJointEndIt;++masterJointIt )
+ {
+ result = false;
+ modelJointIt = jointListFromAsset.begin();
+
+ for ( ;modelJointIt!=modelJointItEnd; ++modelJointIt )
+ {
+ if ( *masterJointIt == *modelJointIt )
+ {
+ result = true;
+ break;
+ }
+ }
+ if ( !result )
+ {
+ LL_INFOS() <<" Asset did not contain the joint (if you're u/l a fully rigged asset w/joint positions - it is required)." << *masterJointIt<< LL_ENDL;
+ break;
+ }
+ }
+ return result;
+}
+
+
+//called in the main thread
+void LLModelLoader::loadTextures()
+{
+ BOOL is_paused = isPaused() ;
+ pause() ; //pause the loader
+
+ for(scene::iterator iter = mScene.begin(); iter != mScene.end(); ++iter)
+ {
+ for(U32 i = 0 ; i < iter->second.size(); i++)
+ {
+ for(std::map<std::string, LLImportMaterial>::iterator j = iter->second[i].mMaterial.begin();
+ j != iter->second[i].mMaterial.end(); ++j)
+ {
+ LLImportMaterial& material = j->second;
+
+ if(!material.mDiffuseMapFilename.empty())
+ {
+ mNumOfFetchingTextures += mTextureLoadFunc(material, mOpaqueData);
+ }
+ }
+ }
+ }
+
+ if(!is_paused)
+ {
+ unpause() ;
+ }
+}
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