/** * @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& jointTransformMap, JointNameSet& jointsFromNodes, JointMap& legalJointNamesMap, U32 maxJointsPerMesh) : mJointList( jointTransformMap ) , 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) , mRigValidJointUpload(true) , mLegacyRigValid(true) , mNoNormalize(false) , mNoOptimize(false) , mCacheOnlyHitIfRigged(false) , mMaxJointsPerMesh(maxJointsPerMesh) , mJointMap(legalJointNamesMap) { 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)); } // static bool LLModelLoader::getSLMFilename(const std::string& model_filename, std::string& slm_filename) { slm_filename = model_filename; std::string::size_type i = model_filename.rfind("."); if (i != std::string::npos) { slm_filename.replace(i, model_filename.size()-1, ".slm"); return true; } else { return false; } } bool LLModelLoader::doLoadModel() { //first, look for a .slm file of the same name that was modified later //than the .dae if (mTrySLM) { std::string slm_filename; if (getSLMFilename(mFilename, slm_filename)) { llstat slm_status; if (LLFile::stat(slm_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(slm_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 ) { //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 start out as true and are forced to false if any mesh in // the model file is not vald by that criterion. Note that a file // can contain multiple meshes. if ( !isJointPositionUploadOK ) { // This starts out true, becomes false if false for any loaded // mesh. setRigValidForJointPositionUpload( false ); } if ( !isRigLegacyOK) { // This starts out true, becomes false if false for any loaded // mesh. setLegacyRigValid( false ); } } //----------------------------------------------------------------------------- // isRigLegacy() //----------------------------------------------------------------------------- bool LLModelLoader::isRigLegacy( const std::vector<std::string> &jointListFromAsset ) { //No joints in asset if ( jointListFromAsset.size() == 0 ) { return false; } // Too many joints in asset if (jointListFromAsset.size()>mMaxJointsPerMesh) { LL_WARNS() << "Rigged to " << jointListFromAsset.size() << " joints, max is " << mMaxJointsPerMesh << LL_ENDL; LL_WARNS() << "Skinning disabled due to too many joints" << LL_ENDL; return false; } // Unknown joints in asset S32 unknown_joint_count = 0; for (std::vector<std::string>::const_iterator it = jointListFromAsset.begin(); it != jointListFromAsset.end(); ++it) { if (mJointMap.find(*it)==mJointMap.end()) { LL_WARNS() << "Rigged to unrecognized joint name " << *it << LL_ENDL; unknown_joint_count++; } } if (unknown_joint_count>0) { LL_WARNS() << "Skinning disabled due to unknown joints" << LL_ENDL; return false; } return true; } //----------------------------------------------------------------------------- // isRigSuitableForJointPositionUpload() //----------------------------------------------------------------------------- bool LLModelLoader::isRigSuitableForJointPositionUpload( const std::vector<std::string> &jointListFromAsset ) { return true; } //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() ; } }