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Diffstat (limited to 'src/mesh/assimp-master/code/AssetLib/LWO/LWOLoader.cpp')
| -rw-r--r-- | src/mesh/assimp-master/code/AssetLib/LWO/LWOLoader.cpp | 1422 |
1 files changed, 0 insertions, 1422 deletions
diff --git a/src/mesh/assimp-master/code/AssetLib/LWO/LWOLoader.cpp b/src/mesh/assimp-master/code/AssetLib/LWO/LWOLoader.cpp deleted file mode 100644 index 7410fb6..0000000 --- a/src/mesh/assimp-master/code/AssetLib/LWO/LWOLoader.cpp +++ /dev/null @@ -1,1422 +0,0 @@ -/* ---------------------------------------------------------------------------- -Open Asset Import Library (assimp) ---------------------------------------------------------------------------- - -Copyright (c) 2006-2022, assimp team - - - -All rights reserved. - -Redistribution and use of this software in source and binary forms, -with or without modification, are permitted provided that the following -conditions are met: - -* Redistributions of source code must retain the above - copyright notice, this list of conditions and the - following disclaimer. - -* Redistributions in binary form must reproduce the above - copyright notice, this list of conditions and the - following disclaimer in the documentation and/or other - materials provided with the distribution. - -* Neither the name of the assimp team, nor the names of its - contributors may be used to endorse or promote products - derived from this software without specific prior - written permission of the assimp team. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ---------------------------------------------------------------------------- -*/ - -/** @file LWOLoader.cpp - * @brief Implementation of the LWO importer class - */ - -#ifndef ASSIMP_BUILD_NO_LWO_IMPORTER - -// internal headers -#include "AssetLib/LWO/LWOLoader.h" -#include "PostProcessing/ConvertToLHProcess.h" -#include "PostProcessing/ProcessHelper.h" - -#include <assimp/ByteSwapper.h> -#include <assimp/SGSpatialSort.h> -#include <assimp/StringComparison.h> -#include <assimp/importerdesc.h> -#include <assimp/IOSystem.hpp> - -#include <iomanip> -#include <map> -#include <memory> -#include <sstream> - -using namespace Assimp; - -static const aiImporterDesc desc = { - "LightWave/Modo Object Importer", - "", - "", - "https://www.lightwave3d.com/lightwave_sdk/", - aiImporterFlags_SupportTextFlavour, - 0, - 0, - 0, - 0, - "lwo lxo" -}; - -// ------------------------------------------------------------------------------------------------ -// Constructor to be privately used by Importer -LWOImporter::LWOImporter() : - mIsLWO2(), - mIsLXOB(), - mLayers(), - mCurLayer(), - mTags(), - mMapping(), - mSurfaces(), - mFileBuffer(), - fileSize(), - mScene(nullptr), - configSpeedFlag(), - configLayerIndex(), - hasNamedLayer() { - // empty -} - -// ------------------------------------------------------------------------------------------------ -// Destructor, private as well -LWOImporter::~LWOImporter() { - // empty -} - -// ------------------------------------------------------------------------------------------------ -// Returns whether the class can handle the format of the given file. -bool LWOImporter::CanRead(const std::string &file, IOSystem *pIOHandler, bool /*checkSig*/) const { - static const uint32_t tokens[] = { - AI_LWO_FOURCC_LWOB, - AI_LWO_FOURCC_LWO2, - AI_LWO_FOURCC_LXOB - }; - return CheckMagicToken(pIOHandler, file, tokens, AI_COUNT_OF(tokens), 8); -} - -// ------------------------------------------------------------------------------------------------ -// Setup configuration properties -void LWOImporter::SetupProperties(const Importer *pImp) { - configSpeedFlag = (0 != pImp->GetPropertyInteger(AI_CONFIG_FAVOUR_SPEED, 0) ? true : false); - configLayerIndex = pImp->GetPropertyInteger(AI_CONFIG_IMPORT_LWO_ONE_LAYER_ONLY, UINT_MAX); - configLayerName = pImp->GetPropertyString(AI_CONFIG_IMPORT_LWO_ONE_LAYER_ONLY, ""); -} - -// ------------------------------------------------------------------------------------------------ -// Get list of file extensions -const aiImporterDesc *LWOImporter::GetInfo() const { - return &desc; -} - -// ------------------------------------------------------------------------------------------------ -// Imports the given file into the given scene structure. -void LWOImporter::InternReadFile(const std::string &pFile, - aiScene *pScene, - IOSystem *pIOHandler) { - std::unique_ptr<IOStream> file(pIOHandler->Open(pFile, "rb")); - - // Check whether we can read from the file - if (file.get() == nullptr) { - throw DeadlyImportError("Failed to open LWO file ", pFile, "."); - } - - if ((this->fileSize = (unsigned int)file->FileSize()) < 12) { - throw DeadlyImportError("LWO: The file is too small to contain the IFF header"); - } - - // Allocate storage and copy the contents of the file to a memory buffer - std::vector<uint8_t> mBuffer(fileSize); - file->Read(&mBuffer[0], 1, fileSize); - mScene = pScene; - - // Determine the type of the file - uint32_t fileType; - const char *sz = IFF::ReadHeader(&mBuffer[0], fileType); - if (sz) { - throw DeadlyImportError(sz); - } - - mFileBuffer = &mBuffer[0] + 12; - fileSize -= 12; - - // Initialize some members with their default values - hasNamedLayer = false; - - // Create temporary storage on the stack but store pointers to it in the class - // instance. Therefore everything will be destructed properly if an exception - // is thrown and we needn't take care of that. - LayerList _mLayers; - SurfaceList _mSurfaces; - TagList _mTags; - TagMappingTable _mMapping; - - mLayers = &_mLayers; - mTags = &_mTags; - mMapping = &_mMapping; - mSurfaces = &_mSurfaces; - - // Allocate a default layer (layer indices are 1-based from now) - mLayers->push_back(Layer()); - mCurLayer = &mLayers->back(); - mCurLayer->mName = "<LWODefault>"; - mCurLayer->mIndex = (uint16_t) -1; - - // old lightwave file format (prior to v6) - if (AI_LWO_FOURCC_LWOB == fileType) { - ASSIMP_LOG_INFO("LWO file format: LWOB (<= LightWave 5.5)"); - - mIsLWO2 = false; - mIsLXOB = false; - LoadLWOBFile(); - } else if (AI_LWO_FOURCC_LWO2 == fileType) { - // New lightwave format - mIsLXOB = false; - ASSIMP_LOG_INFO("LWO file format: LWO2 (>= LightWave 6)"); - } else if (AI_LWO_FOURCC_LXOB == fileType) { - // MODO file format - mIsLXOB = true; - ASSIMP_LOG_INFO("LWO file format: LXOB (Modo)"); - } - else { - char szBuff[5]; - szBuff[0] = (char)(fileType >> 24u); - szBuff[1] = (char)(fileType >> 16u); - szBuff[2] = (char)(fileType >> 8u); - szBuff[3] = (char)(fileType); - szBuff[4] = '\0'; - throw DeadlyImportError("Unknown LWO sub format: ", szBuff); - } - - if (AI_LWO_FOURCC_LWOB != fileType) { - mIsLWO2 = true; - LoadLWO2File(); - - // The newer lightwave format allows the user to configure the - // loader that just one layer is used. If this is the case - // we need to check now whether the requested layer has been found. - if (UINT_MAX != configLayerIndex) { - unsigned int layerCount = 0; - for (std::list<LWO::Layer>::iterator itLayers = mLayers->begin(); itLayers != mLayers->end(); ++itLayers) - if (!itLayers->skip) - layerCount++; - if (layerCount != 2) - throw DeadlyImportError("LWO2: The requested layer was not found"); - } - - if (configLayerName.length() && !hasNamedLayer) { - throw DeadlyImportError("LWO2: Unable to find the requested layer: ", configLayerName); - } - } - - // now, as we have loaded all data, we can resolve cross-referenced tags and clips - ResolveTags(); - ResolveClips(); - - // now process all layers and build meshes and nodes - std::vector<aiMesh *> apcMeshes; - std::map<uint16_t, aiNode *> apcNodes; - - apcMeshes.reserve(mLayers->size() * std::min(((unsigned int)mSurfaces->size() / 2u), 1u)); - - unsigned int iDefaultSurface = UINT_MAX; // index of the default surface - for (LWO::Layer &layer : *mLayers) { - if (layer.skip) - continue; - - // I don't know whether there could be dummy layers, but it would be possible - const unsigned int meshStart = (unsigned int)apcMeshes.size(); - if (!layer.mFaces.empty() && !layer.mTempPoints.empty()) { - - // now sort all faces by the surfaces assigned to them - std::vector<SortedRep> pSorted(mSurfaces->size() + 1); - - unsigned int i = 0; - for (FaceList::iterator it = layer.mFaces.begin(), end = layer.mFaces.end(); it != end; ++it, ++i) { - // Check whether we support this face's type - if ((*it).type != AI_LWO_FACE && (*it).type != AI_LWO_PTCH && - (*it).type != AI_LWO_BONE && (*it).type != AI_LWO_SUBD) { - continue; - } - - unsigned int idx = (*it).surfaceIndex; - if (idx >= mTags->size()) { - ASSIMP_LOG_WARN("LWO: Invalid face surface index"); - idx = UINT_MAX; - } - if (UINT_MAX == idx || UINT_MAX == (idx = _mMapping[idx])) { - if (UINT_MAX == iDefaultSurface) { - iDefaultSurface = (unsigned int)mSurfaces->size(); - mSurfaces->push_back(LWO::Surface()); - LWO::Surface &surf = mSurfaces->back(); - surf.mColor.r = surf.mColor.g = surf.mColor.b = 0.6f; - surf.mName = "LWODefaultSurface"; - } - idx = iDefaultSurface; - } - pSorted[idx].push_back(i); - } - if (UINT_MAX == iDefaultSurface) { - pSorted.erase(pSorted.end() - 1); - } - for (unsigned int p = 0, j = 0; j < mSurfaces->size(); ++j) { - SortedRep &sorted = pSorted[j]; - if (sorted.empty()) - continue; - - // generate the mesh - aiMesh *mesh = new aiMesh(); - apcMeshes.push_back(mesh); - mesh->mNumFaces = (unsigned int)sorted.size(); - - // count the number of vertices - SortedRep::const_iterator it = sorted.begin(), end = sorted.end(); - for (; it != end; ++it) { - mesh->mNumVertices += layer.mFaces[*it].mNumIndices; - } - - aiVector3D *nrm = nullptr, *pv = mesh->mVertices = new aiVector3D[mesh->mNumVertices]; - aiFace *pf = mesh->mFaces = new aiFace[mesh->mNumFaces]; - mesh->mMaterialIndex = j; - - // find out which vertex color channels and which texture coordinate - // channels are really required by the material attached to this mesh - unsigned int vUVChannelIndices[AI_MAX_NUMBER_OF_TEXTURECOORDS]; - unsigned int vVColorIndices[AI_MAX_NUMBER_OF_COLOR_SETS]; - -#ifdef ASSIMP_BUILD_DEBUG - for (unsigned int mui = 0; mui < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++mui) { - vUVChannelIndices[mui] = UINT_MAX; - } - for (unsigned int mui = 0; mui < AI_MAX_NUMBER_OF_COLOR_SETS; ++mui) { - vVColorIndices[mui] = UINT_MAX; - } -#endif - - FindUVChannels(_mSurfaces[j], sorted, layer, vUVChannelIndices); - FindVCChannels(_mSurfaces[j], sorted, layer, vVColorIndices); - - // allocate storage for UV and CV channels - aiVector3D *pvUV[AI_MAX_NUMBER_OF_TEXTURECOORDS]; - for (unsigned int mui = 0; mui < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++mui) { - if (UINT_MAX == vUVChannelIndices[mui]) { - break; - } - - pvUV[mui] = mesh->mTextureCoords[mui] = new aiVector3D[mesh->mNumVertices]; - - // LightWave doesn't support more than 2 UV components (?) - mesh->mNumUVComponents[0] = 2; - } - - if (layer.mNormals.name.length()) { - nrm = mesh->mNormals = new aiVector3D[mesh->mNumVertices]; - } - - aiColor4D *pvVC[AI_MAX_NUMBER_OF_COLOR_SETS]; - for (unsigned int mui = 0; mui < AI_MAX_NUMBER_OF_COLOR_SETS; ++mui) { - if (UINT_MAX == vVColorIndices[mui]) { - break; - } - pvVC[mui] = mesh->mColors[mui] = new aiColor4D[mesh->mNumVertices]; - } - - // we would not need this extra array, but the code is much cleaner if we use it - std::vector<unsigned int> &smoothingGroups = layer.mPointReferrers; - smoothingGroups.erase(smoothingGroups.begin(), smoothingGroups.end()); - smoothingGroups.resize(mesh->mNumFaces, 0); - - // now convert all faces - unsigned int vert = 0; - std::vector<unsigned int>::iterator outIt = smoothingGroups.begin(); - for (it = sorted.begin(); it != end; ++it, ++outIt) { - const LWO::Face &face = layer.mFaces[*it]; - *outIt = face.smoothGroup; - - // copy all vertices - for (unsigned int q = 0; q < face.mNumIndices; ++q, ++vert) { - unsigned int idx = face.mIndices[q]; - *pv++ = layer.mTempPoints[idx] /*- layer.mPivot*/; - - // process UV coordinates - for (unsigned int w = 0; w < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++w) { - if (UINT_MAX == vUVChannelIndices[w]) { - break; - } - aiVector3D *&pp = pvUV[w]; - const aiVector2D &src = ((aiVector2D *)&layer.mUVChannels[vUVChannelIndices[w]].rawData[0])[idx]; - pp->x = src.x; - pp->y = src.y; - pp++; - } - - // process normals (MODO extension) - if (nrm) { - *nrm = ((aiVector3D *)&layer.mNormals.rawData[0])[idx]; - nrm->z *= -1.f; - ++nrm; - } - - // process vertex colors - for (unsigned int w = 0; w < AI_MAX_NUMBER_OF_COLOR_SETS; ++w) { - if (UINT_MAX == vVColorIndices[w]) { - break; - } - *pvVC[w] = ((aiColor4D *)&layer.mVColorChannels[vVColorIndices[w]].rawData[0])[idx]; - - // If a RGB color map is explicitly requested delete the - // alpha channel - it could theoretically be != 1. - if (_mSurfaces[j].mVCMapType == AI_LWO_RGB) - pvVC[w]->a = 1.f; - - pvVC[w]++; - } - -#if 0 - // process vertex weights. We can't properly reconstruct the whole skeleton for now, - // but we can create dummy bones for all weight channels which we have. - for (unsigned int w = 0; w < layer.mWeightChannels.size();++w) - { - } -#endif - - face.mIndices[q] = vert; - } - pf->mIndices = face.mIndices; - pf->mNumIndices = face.mNumIndices; - unsigned int **facePtr = (unsigned int **)&face.mIndices; - *facePtr = nullptr; // HACK: make sure it won't be deleted - pf++; - } - - if (!mesh->mNormals) { - // Compute normal vectors for the mesh - we can't use our GenSmoothNormal- - // Step here since it wouldn't handle smoothing groups correctly for LWO. - // So we use a separate implementation. - ComputeNormals(mesh, smoothingGroups, _mSurfaces[j]); - } else { - ASSIMP_LOG_VERBOSE_DEBUG("LWO2: No need to compute normals, they're already there"); - } - ++p; - } - } - - // Generate nodes to render the mesh. Store the source layer in the mParent member of the nodes - unsigned int num = static_cast<unsigned int>(apcMeshes.size() - meshStart); - if (layer.mName != "<LWODefault>" || num > 0) { - aiNode *pcNode = new aiNode(); - pcNode->mName.Set(layer.mName); - pcNode->mParent = (aiNode *)&layer; - pcNode->mNumMeshes = num; - - if (pcNode->mNumMeshes) { - pcNode->mMeshes = new unsigned int[pcNode->mNumMeshes]; - for (unsigned int p = 0; p < pcNode->mNumMeshes; ++p) - pcNode->mMeshes[p] = p + meshStart; - } - apcNodes[layer.mIndex] = pcNode; - } - } - - if (apcNodes.empty() || apcMeshes.empty()) - throw DeadlyImportError("LWO: No meshes loaded"); - - // The RemoveRedundantMaterials step will clean this up later - pScene->mMaterials = new aiMaterial *[pScene->mNumMaterials = (unsigned int)mSurfaces->size()]; - for (unsigned int mat = 0; mat < pScene->mNumMaterials; ++mat) { - aiMaterial *pcMat = new aiMaterial(); - pScene->mMaterials[mat] = pcMat; - ConvertMaterial((*mSurfaces)[mat], pcMat); - } - - // copy the meshes to the output structure - pScene->mMeshes = new aiMesh *[pScene->mNumMeshes = (unsigned int)apcMeshes.size()]; - ::memcpy(pScene->mMeshes, &apcMeshes[0], pScene->mNumMeshes * sizeof(void *)); - - // generate the final node graph - GenerateNodeGraph(apcNodes); -} - -// ------------------------------------------------------------------------------------------------ -void LWOImporter::ComputeNormals(aiMesh *mesh, const std::vector<unsigned int> &smoothingGroups, - const LWO::Surface &surface) { - // Allocate output storage - mesh->mNormals = new aiVector3D[mesh->mNumVertices]; - - // First generate per-face normals - aiVector3D *out; - std::vector<aiVector3D> faceNormals; - - // ... in some cases that's already enough - if (!surface.mMaximumSmoothAngle) - out = mesh->mNormals; - else { - faceNormals.resize(mesh->mNumVertices); - out = &faceNormals[0]; - } - - aiFace *begin = mesh->mFaces, *const end = mesh->mFaces + mesh->mNumFaces; - for (; begin != end; ++begin) { - aiFace &face = *begin; - - if (face.mNumIndices < 3) { - continue; - } - - // LWO doc: "the normal is defined as the cross product of the first and last edges" - aiVector3D *pV1 = mesh->mVertices + face.mIndices[0]; - aiVector3D *pV2 = mesh->mVertices + face.mIndices[1]; - aiVector3D *pV3 = mesh->mVertices + face.mIndices[face.mNumIndices - 1]; - - aiVector3D vNor = ((*pV2 - *pV1) ^ (*pV3 - *pV1)).Normalize(); - for (unsigned int i = 0; i < face.mNumIndices; ++i) - out[face.mIndices[i]] = vNor; - } - if (!surface.mMaximumSmoothAngle) return; - const float posEpsilon = ComputePositionEpsilon(mesh); - - // Now generate the spatial sort tree - SGSpatialSort sSort; - std::vector<unsigned int>::const_iterator it = smoothingGroups.begin(); - for (begin = mesh->mFaces; begin != end; ++begin, ++it) { - aiFace &face = *begin; - for (unsigned int i = 0; i < face.mNumIndices; ++i) { - unsigned int tt = face.mIndices[i]; - sSort.Add(mesh->mVertices[tt], tt, *it); - } - } - // Sort everything - this takes O(nlogn) time - sSort.Prepare(); - std::vector<unsigned int> poResult; - poResult.reserve(20); - - // Generate vertex normals. We have O(logn) for the binary lookup, which we need - // for n elements, thus the EXPECTED complexity is O(nlogn) - if (surface.mMaximumSmoothAngle < 3.f && !configSpeedFlag) { - const float fLimit = std::cos(surface.mMaximumSmoothAngle); - - for (begin = mesh->mFaces, it = smoothingGroups.begin(); begin != end; ++begin, ++it) { - const aiFace &face = *begin; - unsigned int *beginIdx = face.mIndices, *const endIdx = face.mIndices + face.mNumIndices; - for (; beginIdx != endIdx; ++beginIdx) { - unsigned int idx = *beginIdx; - sSort.FindPositions(mesh->mVertices[idx], *it, posEpsilon, poResult, true); - - aiVector3D vNormals; - for (std::vector<unsigned int>::const_iterator a = poResult.begin(); a != poResult.end(); ++a) { - const aiVector3D &v = faceNormals[*a]; - if (v * faceNormals[idx] < fLimit) - continue; - vNormals += v; - } - mesh->mNormals[idx] = vNormals.Normalize(); - } - } - } - // faster code path in case there is no smooth angle - else { - std::vector<bool> vertexDone(mesh->mNumVertices, false); - for (begin = mesh->mFaces, it = smoothingGroups.begin(); begin != end; ++begin, ++it) { - const aiFace &face = *begin; - unsigned int *beginIdx = face.mIndices, *const endIdx = face.mIndices + face.mNumIndices; - for (; beginIdx != endIdx; ++beginIdx) { - unsigned int idx = *beginIdx; - if (vertexDone[idx]) - continue; - sSort.FindPositions(mesh->mVertices[idx], *it, posEpsilon, poResult, true); - - aiVector3D vNormals; - for (std::vector<unsigned int>::const_iterator a = poResult.begin(); a != poResult.end(); ++a) { - const aiVector3D &v = faceNormals[*a]; - vNormals += v; - } - vNormals.Normalize(); - for (std::vector<unsigned int>::const_iterator a = poResult.begin(); a != poResult.end(); ++a) { - mesh->mNormals[*a] = vNormals; - vertexDone[*a] = true; - } - } - } - } -} - -// ------------------------------------------------------------------------------------------------ -void LWOImporter::GenerateNodeGraph(std::map<uint16_t, aiNode *> &apcNodes) { - // now generate the final nodegraph - generate a root node and attach children - aiNode *root = mScene->mRootNode = new aiNode(); - root->mName.Set("<LWORoot>"); - - //Set parent of all children, inserting pivots - std::map<uint16_t, aiNode *> mapPivot; - for (auto itapcNodes = apcNodes.begin(); itapcNodes != apcNodes.end(); ++itapcNodes) { - - //Get the parent index - LWO::Layer *nodeLayer = (LWO::Layer *)(itapcNodes->second->mParent); - uint16_t parentIndex = nodeLayer->mParent; - - //Create pivot node, store it into the pivot map, and set the parent as the pivot - aiNode *pivotNode = new aiNode(); - pivotNode->mName.Set("Pivot-" + std::string(itapcNodes->second->mName.data)); - itapcNodes->second->mParent = pivotNode; - - //Look for the parent node to attach the pivot to - if (apcNodes.find(parentIndex) != apcNodes.end()) { - pivotNode->mParent = apcNodes[parentIndex]; - } else { - //If not, attach to the root node - pivotNode->mParent = root; - } - - //Set the node and the pivot node transformation - itapcNodes->second->mTransformation.a4 = -nodeLayer->mPivot.x; - itapcNodes->second->mTransformation.b4 = -nodeLayer->mPivot.y; - itapcNodes->second->mTransformation.c4 = -nodeLayer->mPivot.z; - pivotNode->mTransformation.a4 = nodeLayer->mPivot.x; - pivotNode->mTransformation.b4 = nodeLayer->mPivot.y; - pivotNode->mTransformation.c4 = nodeLayer->mPivot.z; - mapPivot[-(itapcNodes->first + 2)] = pivotNode; - } - - //Merge pivot map into node map - for (auto itMapPivot = mapPivot.begin(); itMapPivot != mapPivot.end(); ++itMapPivot) { - apcNodes[itMapPivot->first] = itMapPivot->second; - } - - //Set children of all parents - apcNodes[(uint16_t)-1] = root; - for (auto itMapParentNodes = apcNodes.begin(); itMapParentNodes != apcNodes.end(); ++itMapParentNodes) { - for (auto itMapChildNodes = apcNodes.begin(); itMapChildNodes != apcNodes.end(); ++itMapChildNodes) { - if ((itMapParentNodes->first != itMapChildNodes->first) && (itMapParentNodes->second == itMapChildNodes->second->mParent)) { - ++(itMapParentNodes->second->mNumChildren); - } - } - if (itMapParentNodes->second->mNumChildren) { - itMapParentNodes->second->mChildren = new aiNode *[itMapParentNodes->second->mNumChildren]; - uint16_t p = 0; - for (auto itMapChildNodes = apcNodes.begin(); itMapChildNodes != apcNodes.end(); ++itMapChildNodes) { - if ((itMapParentNodes->first != itMapChildNodes->first) && (itMapParentNodes->second == itMapChildNodes->second->mParent)) { - itMapParentNodes->second->mChildren[p++] = itMapChildNodes->second; - } - } - } - } - - if (!mScene->mRootNode->mNumChildren) - throw DeadlyImportError("LWO: Unable to build a valid node graph"); - - // Remove a single root node with no meshes assigned to it ... - if (1 == mScene->mRootNode->mNumChildren) { - aiNode *pc = mScene->mRootNode->mChildren[0]; - pc->mParent = mScene->mRootNode->mChildren[0] = nullptr; - delete mScene->mRootNode; - mScene->mRootNode = pc; - } - - // convert the whole stuff to RH with CCW winding - MakeLeftHandedProcess maker; - maker.Execute(mScene); - - FlipWindingOrderProcess flipper; - flipper.Execute(mScene); -} - -// ------------------------------------------------------------------------------------------------ -void LWOImporter::ResolveTags() { - // --- this function is used for both LWO2 and LWOB - mMapping->resize(mTags->size(), UINT_MAX); - for (unsigned int a = 0; a < mTags->size(); ++a) { - - const std::string &c = (*mTags)[a]; - for (unsigned int i = 0; i < mSurfaces->size(); ++i) { - - const std::string &d = (*mSurfaces)[i].mName; - if (!ASSIMP_stricmp(c, d)) { - - (*mMapping)[a] = i; - break; - } - } - } -} - -// ------------------------------------------------------------------------------------------------ -void LWOImporter::ResolveClips() { - for (unsigned int i = 0; i < mClips.size(); ++i) { - - Clip &clip = mClips[i]; - if (Clip::REF == clip.type) { - - if (clip.clipRef >= mClips.size()) { - ASSIMP_LOG_ERROR("LWO2: Clip referrer index is out of range"); - clip.clipRef = 0; - } - - Clip &dest = mClips[clip.clipRef]; - if (Clip::REF == dest.type) { - ASSIMP_LOG_ERROR("LWO2: Clip references another clip reference"); - clip.type = Clip::UNSUPPORTED; - } - - else { - clip.path = dest.path; - clip.type = dest.type; - } - } - } -} - -// ------------------------------------------------------------------------------------------------ -void LWOImporter::AdjustTexturePath(std::string &out) { - // --- this function is used for both LWO2 and LWOB - if (!mIsLWO2 && ::strstr(out.c_str(), "(sequence)")) { - - // remove the (sequence) and append 000 - ASSIMP_LOG_INFO("LWOB: Sequence of animated texture found. It will be ignored"); - out = out.substr(0, out.length() - 10) + "000"; - } - - // format: drive:path/file - we just need to insert a slash after the drive - std::string::size_type n = out.find_first_of(':'); - if (std::string::npos != n) { - out.insert(n + 1, "/"); - } -} - -// ------------------------------------------------------------------------------------------------ -void LWOImporter::LoadLWOTags(unsigned int size) { - // --- this function is used for both LWO2 and LWOB - - const char *szCur = (const char *)mFileBuffer, *szLast = szCur; - const char *const szEnd = szLast + size; - while (szCur < szEnd) { - if (!(*szCur)) { - const size_t len = (size_t)(szCur - szLast); - // FIX: skip empty-sized tags - if (len) - mTags->push_back(std::string(szLast, len)); - szCur += (len & 0x1 ? 1 : 2); - szLast = szCur; - } - szCur++; - } -} - -// ------------------------------------------------------------------------------------------------ -void LWOImporter::LoadLWOPoints(unsigned int length) { - // --- this function is used for both LWO2 and LWOB but for - // LWO2 we need to allocate 25% more storage - it could be we'll - // need to duplicate some points later. - const size_t vertexLen = 12; - if ((length % vertexLen) != 0) { - throw DeadlyImportError("LWO2: Points chunk length is not multiple of vertexLen (12)"); - } - unsigned int regularSize = (unsigned int)mCurLayer->mTempPoints.size() + length / 12; - if (mIsLWO2) { - mCurLayer->mTempPoints.reserve(regularSize + (regularSize >> 2u)); - mCurLayer->mTempPoints.resize(regularSize); - - // initialize all point referrers with the default values - mCurLayer->mPointReferrers.reserve(regularSize + (regularSize >> 2u)); - mCurLayer->mPointReferrers.resize(regularSize, UINT_MAX); - } else - mCurLayer->mTempPoints.resize(regularSize); - - // perform endianness conversions -#ifndef AI_BUILD_BIG_ENDIAN - for (unsigned int i = 0; i<length >> 2; ++i) - ByteSwap::Swap4(mFileBuffer + (i << 2)); -#endif - ::memcpy(&mCurLayer->mTempPoints[0], mFileBuffer, length); -} - -// ------------------------------------------------------------------------------------------------ -void LWOImporter::LoadLWO2Polygons(unsigned int length) { - LE_NCONST uint16_t *const end = (LE_NCONST uint16_t *)(mFileBuffer + length); - const uint32_t type = GetU4(); - - // Determine the type of the polygons - switch (type) { - // read unsupported stuff too (although we won't process it) - case AI_LWO_MBAL: - ASSIMP_LOG_WARN("LWO2: Encountered unsupported primitive chunk (METABALL)"); - break; - case AI_LWO_CURV: - ASSIMP_LOG_WARN("LWO2: Encountered unsupported primitive chunk (SPLINE)"); - ; - break; - - // These are ok with no restrictions - case AI_LWO_PTCH: - case AI_LWO_FACE: - case AI_LWO_BONE: - case AI_LWO_SUBD: - break; - default: - - // hm!? wtf is this? ok ... - ASSIMP_LOG_ERROR("LWO2: Ignoring unknown polygon type."); - break; - } - - // first find out how many faces and vertices we'll finally need - uint16_t *cursor = (uint16_t *)mFileBuffer; - - unsigned int iNumFaces = 0, iNumVertices = 0; - CountVertsAndFacesLWO2(iNumVertices, iNumFaces, cursor, end); - - // allocate the output array and copy face indices - if (iNumFaces) { - cursor = (uint16_t *)mFileBuffer; - - mCurLayer->mFaces.resize(iNumFaces, LWO::Face(type)); - FaceList::iterator it = mCurLayer->mFaces.begin(); - CopyFaceIndicesLWO2(it, cursor, end); - } -} - -// ------------------------------------------------------------------------------------------------ -void LWOImporter::CountVertsAndFacesLWO2(unsigned int &verts, unsigned int &faces, - uint16_t *&cursor, const uint16_t *const end, unsigned int max) { - while (cursor < end && max--) { - uint16_t numIndices; - ::memcpy(&numIndices, cursor++, 2); - AI_LSWAP2(numIndices); - numIndices &= 0x03FF; - - verts += numIndices; - ++faces; - - for (uint16_t i = 0; i < numIndices; i++) { - ReadVSizedIntLWO2((uint8_t *&)cursor); - } - } -} - -// ------------------------------------------------------------------------------------------------ -void LWOImporter::CopyFaceIndicesLWO2(FaceList::iterator &it, - uint16_t *&cursor, - const uint16_t *const end) { - while (cursor < end) { - LWO::Face &face = *it++; - uint16_t numIndices; - ::memcpy(&numIndices, cursor++, 2); - AI_LSWAP2(numIndices); - face.mNumIndices = numIndices & 0x03FF; - - if (face.mNumIndices) /* byte swapping has already been done */ - { - face.mIndices = new unsigned int[face.mNumIndices]; - for (unsigned int i = 0; i < face.mNumIndices; i++) { - face.mIndices[i] = ReadVSizedIntLWO2((uint8_t *&)cursor) + mCurLayer->mPointIDXOfs; - if (face.mIndices[i] > mCurLayer->mTempPoints.size()) { - ASSIMP_LOG_WARN("LWO2: Failure evaluating face record, index is out of range"); - face.mIndices[i] = (unsigned int)mCurLayer->mTempPoints.size() - 1; - } - } - } else - throw DeadlyImportError("LWO2: Encountered invalid face record with zero indices"); - } -} - -// ------------------------------------------------------------------------------------------------ -void LWOImporter::LoadLWO2PolygonTags(unsigned int length) { - LE_NCONST uint8_t *const end = mFileBuffer + length; - - AI_LWO_VALIDATE_CHUNK_LENGTH(length, PTAG, 4); - uint32_t type = GetU4(); - - if (type != AI_LWO_SURF && type != AI_LWO_SMGP) - return; - - while (mFileBuffer < end) { - unsigned int i = ReadVSizedIntLWO2(mFileBuffer) + mCurLayer->mFaceIDXOfs; - unsigned int j = GetU2(); - - if (i >= mCurLayer->mFaces.size()) { - ASSIMP_LOG_WARN("LWO2: face index in PTAG is out of range"); - continue; - } - - switch (type) { - - case AI_LWO_SURF: - mCurLayer->mFaces[i].surfaceIndex = j; - break; - case AI_LWO_SMGP: /* is that really used? */ - mCurLayer->mFaces[i].smoothGroup = j; - break; - }; - } -} - -// ------------------------------------------------------------------------------------------------ -template <class T> -VMapEntry *FindEntry(std::vector<T> &list, const std::string &name, bool perPoly) { - for (auto &elem : list) { - if (elem.name == name) { - if (!perPoly) { - ASSIMP_LOG_WARN("LWO2: Found two VMAP sections with equal names"); - } - return &elem; - } - } - list.push_back(T()); - VMapEntry *p = &list.back(); - p->name = name; - return p; -} - -// ------------------------------------------------------------------------------------------------ -template <class T> -inline void CreateNewEntry(T &chan, unsigned int srcIdx) { - if (!chan.name.length()) - return; - - chan.abAssigned[srcIdx] = true; - chan.abAssigned.resize(chan.abAssigned.size() + 1, false); - - for (unsigned int a = 0; a < chan.dims; ++a) - chan.rawData.push_back(chan.rawData[srcIdx * chan.dims + a]); -} - -// ------------------------------------------------------------------------------------------------ -template <class T> -inline void CreateNewEntry(std::vector<T> &list, unsigned int srcIdx) { - for (auto &elem : list) { - CreateNewEntry(elem, srcIdx); - } -} - -// ------------------------------------------------------------------------------------------------ -inline void LWOImporter::DoRecursiveVMAPAssignment(VMapEntry *base, unsigned int numRead, - unsigned int idx, float *data) { - ai_assert(nullptr != data); - LWO::ReferrerList &refList = mCurLayer->mPointReferrers; - unsigned int i; - - if (idx >= base->abAssigned.size()) { - throw DeadlyImportError("Bad index"); - } - base->abAssigned[idx] = true; - for (i = 0; i < numRead; ++i) { - base->rawData[idx * base->dims + i] = data[i]; - } - - if (UINT_MAX != (i = refList[idx])) { - DoRecursiveVMAPAssignment(base, numRead, i, data); - } -} - -// ------------------------------------------------------------------------------------------------ -inline void AddToSingleLinkedList(ReferrerList &refList, unsigned int srcIdx, unsigned int destIdx) { - if (UINT_MAX == refList[srcIdx]) { - refList[srcIdx] = destIdx; - return; - } - AddToSingleLinkedList(refList, refList[srcIdx], destIdx); -} - -// ------------------------------------------------------------------------------------------------ -// Load LWO2 vertex map -void LWOImporter::LoadLWO2VertexMap(unsigned int length, bool perPoly) { - LE_NCONST uint8_t *const end = mFileBuffer + length; - - AI_LWO_VALIDATE_CHUNK_LENGTH(length, VMAP, 6); - unsigned int type = GetU4(); - unsigned int dims = GetU2(); - - VMapEntry *base; - - // read the name of the vertex map - std::string name; - GetS0(name, length); - - switch (type) { - case AI_LWO_TXUV: - if (dims != 2) { - ASSIMP_LOG_WARN("LWO2: Skipping UV channel \'", name, "\' with !2 components"); - return; - } - base = FindEntry(mCurLayer->mUVChannels, name, perPoly); - break; - case AI_LWO_WGHT: - case AI_LWO_MNVW: - if (dims != 1) { - ASSIMP_LOG_WARN("LWO2: Skipping Weight Channel \'", name, "\' with !1 components"); - return; - } - base = FindEntry((type == AI_LWO_WGHT ? mCurLayer->mWeightChannels : mCurLayer->mSWeightChannels), name, perPoly); - break; - case AI_LWO_RGB: - case AI_LWO_RGBA: - if (dims != 3 && dims != 4) { - ASSIMP_LOG_WARN("LWO2: Skipping Color Map \'", name, "\' with a dimension > 4 or < 3"); - return; - } - base = FindEntry(mCurLayer->mVColorChannels, name, perPoly); - break; - - case AI_LWO_MODO_NORM: - /* This is a non-standard extension chunk used by Luxology's MODO. - * It stores per-vertex normals. This VMAP exists just once, has - * 3 dimensions and is btw extremely beautiful. - */ - if (name != "vert_normals" || dims != 3 || mCurLayer->mNormals.name.length()) - return; - - ASSIMP_LOG_INFO("Processing non-standard extension: MODO VMAP.NORM.vert_normals"); - - mCurLayer->mNormals.name = name; - base = &mCurLayer->mNormals; - break; - - case AI_LWO_PICK: /* these VMAPs are just silently dropped */ - case AI_LWO_MORF: - case AI_LWO_SPOT: - return; - - default: - if (name == "APS.Level") { - // XXX handle this (seems to be subdivision-related). - } - ASSIMP_LOG_WARN("LWO2: Skipping unknown VMAP/VMAD channel \'", name, "\'"); - return; - }; - base->Allocate((unsigned int)mCurLayer->mTempPoints.size()); - - // now read all entries in the map - type = std::min(dims, base->dims); - const unsigned int diff = (dims - type) << 2u; - - LWO::FaceList &list = mCurLayer->mFaces; - LWO::PointList &pointList = mCurLayer->mTempPoints; - LWO::ReferrerList &refList = mCurLayer->mPointReferrers; - - const unsigned int numPoints = (unsigned int)pointList.size(); - const unsigned int numFaces = (unsigned int)list.size(); - - while (mFileBuffer < end) { - - unsigned int idx = ReadVSizedIntLWO2(mFileBuffer) + mCurLayer->mPointIDXOfs; - if (idx >= numPoints) { - ASSIMP_LOG_WARN("LWO2: Failure evaluating VMAP/VMAD entry \'", name, "\', vertex index is out of range"); - mFileBuffer += base->dims << 2u; - continue; - } - if (perPoly) { - unsigned int polyIdx = ReadVSizedIntLWO2(mFileBuffer) + mCurLayer->mFaceIDXOfs; - if (base->abAssigned[idx]) { - // we have already a VMAP entry for this vertex - thus - // we need to duplicate the corresponding polygon. - if (polyIdx >= numFaces) { - ASSIMP_LOG_WARN("LWO2: Failure evaluating VMAD entry \'", name, "\', polygon index is out of range"); - mFileBuffer += base->dims << 2u; - continue; - } - - LWO::Face &src = list[polyIdx]; - - // generate a new unique vertex for the corresponding index - but only - // if we can find the index in the face - bool had = false; - for (unsigned int i = 0; i < src.mNumIndices; ++i) { - - unsigned int srcIdx = src.mIndices[i], tmp = idx; - do { - if (tmp == srcIdx) - break; - } while ((tmp = refList[tmp]) != UINT_MAX); - if (tmp == UINT_MAX) { - continue; - } - - had = true; - refList.resize(refList.size() + 1, UINT_MAX); - - idx = (unsigned int)pointList.size(); - src.mIndices[i] = (unsigned int)pointList.size(); - - // store the index of the new vertex in the old vertex - // so we get a single linked list we can traverse in - // only one direction - AddToSingleLinkedList(refList, srcIdx, src.mIndices[i]); - pointList.push_back(pointList[srcIdx]); - - CreateNewEntry(mCurLayer->mVColorChannels, srcIdx); - CreateNewEntry(mCurLayer->mUVChannels, srcIdx); - CreateNewEntry(mCurLayer->mWeightChannels, srcIdx); - CreateNewEntry(mCurLayer->mSWeightChannels, srcIdx); - CreateNewEntry(mCurLayer->mNormals, srcIdx); - } - if (!had) { - ASSIMP_LOG_WARN("LWO2: Failure evaluating VMAD entry \'", name, "\', vertex index wasn't found in that polygon"); - ai_assert(had); - } - } - } - - std::unique_ptr<float[]> temp(new float[type]); - for (unsigned int l = 0; l < type; ++l) - temp[l] = GetF4(); - - DoRecursiveVMAPAssignment(base, type, idx, temp.get()); - mFileBuffer += diff; - } -} - -// ------------------------------------------------------------------------------------------------ -// Load LWO2 clip -void LWOImporter::LoadLWO2Clip(unsigned int length) { - AI_LWO_VALIDATE_CHUNK_LENGTH(length, CLIP, 10); - - mClips.push_back(LWO::Clip()); - LWO::Clip &clip = mClips.back(); - - // first - get the index of the clip - clip.idx = GetU4(); - - IFF::SubChunkHeader head = IFF::LoadSubChunk(mFileBuffer); - switch (head.type) { - case AI_LWO_STIL: - AI_LWO_VALIDATE_CHUNK_LENGTH(head.length, STIL, 1); - - // "Normal" texture - GetS0(clip.path, head.length); - clip.type = Clip::STILL; - break; - - case AI_LWO_ISEQ: - AI_LWO_VALIDATE_CHUNK_LENGTH(head.length, ISEQ, 16); - // Image sequence. We'll later take the first. - { - uint8_t digits = GetU1(); - mFileBuffer++; - int16_t offset = GetU2(); - mFileBuffer += 4; - int16_t start = GetU2(); - mFileBuffer += 4; - - std::string s; - std::ostringstream ss; - GetS0(s, head.length); - - head.length -= (uint16_t)s.length() + 1; - ss << s; - ss << std::setw(digits) << offset + start; - GetS0(s, head.length); - ss << s; - clip.path = ss.str(); - clip.type = Clip::SEQ; - } - break; - - case AI_LWO_STCC: - ASSIMP_LOG_WARN("LWO2: Color shifted images are not supported"); - break; - - case AI_LWO_ANIM: - ASSIMP_LOG_WARN("LWO2: Animated textures are not supported"); - break; - - case AI_LWO_XREF: - AI_LWO_VALIDATE_CHUNK_LENGTH(head.length, XREF, 4); - - // Just a cross-reference to another CLIp - clip.type = Clip::REF; - clip.clipRef = GetU4(); - break; - - case AI_LWO_NEGA: - AI_LWO_VALIDATE_CHUNK_LENGTH(head.length, NEGA, 2); - clip.negate = (0 != GetU2()); - break; - - default: - ASSIMP_LOG_WARN("LWO2: Encountered unknown CLIP sub-chunk"); - } -} - -// ------------------------------------------------------------------------------------------------ -// Load envelope description -void LWOImporter::LoadLWO2Envelope(unsigned int length) { - LE_NCONST uint8_t *const end = mFileBuffer + length; - AI_LWO_VALIDATE_CHUNK_LENGTH(length, ENVL, 4); - - mEnvelopes.push_back(LWO::Envelope()); - LWO::Envelope &envelope = mEnvelopes.back(); - - // Get the index of the envelope - envelope.index = ReadVSizedIntLWO2(mFileBuffer); - - // It looks like there might be an extra U4 right after the index, - // at least in modo (LXOB) files: we'll ignore it if it's zero, - // otherwise it represents the start of a subchunk, so we backtrack. - if (mIsLXOB) { - uint32_t extra = GetU4(); - if (extra) { - mFileBuffer -= 4; - } - } - - // ... and read all subchunks - while (true) { - if (mFileBuffer + 6 >= end) break; - LE_NCONST IFF::SubChunkHeader head = IFF::LoadSubChunk(mFileBuffer); - - if (mFileBuffer + head.length > end) - throw DeadlyImportError("LWO2: Invalid envelope chunk length"); - - uint8_t *const next = mFileBuffer + head.length; - switch (head.type) { - // Type & representation of the envelope - case AI_LWO_TYPE: - AI_LWO_VALIDATE_CHUNK_LENGTH(head.length, TYPE, 2); - mFileBuffer++; // skip user format - - // Determine type of envelope - envelope.type = (LWO::EnvelopeType)*mFileBuffer; - ++mFileBuffer; - break; - - // precondition - case AI_LWO_PRE: - AI_LWO_VALIDATE_CHUNK_LENGTH(head.length, PRE, 2); - envelope.pre = (LWO::PrePostBehaviour)GetU2(); - break; - - // postcondition - case AI_LWO_POST: - AI_LWO_VALIDATE_CHUNK_LENGTH(head.length, POST, 2); - envelope.post = (LWO::PrePostBehaviour)GetU2(); - break; - - // keyframe - case AI_LWO_KEY: { - AI_LWO_VALIDATE_CHUNK_LENGTH(head.length, KEY, 8); - - envelope.keys.push_back(LWO::Key()); - LWO::Key &key = envelope.keys.back(); - - key.time = GetF4(); - key.value = GetF4(); - break; - } - - // interval interpolation - case AI_LWO_SPAN: { - AI_LWO_VALIDATE_CHUNK_LENGTH(head.length, SPAN, 4); - if (envelope.keys.size() < 2) - ASSIMP_LOG_WARN("LWO2: Unexpected SPAN chunk"); - else { - LWO::Key &key = envelope.keys.back(); - switch (GetU4()) { - case AI_LWO_STEP: - key.inter = LWO::IT_STEP; - break; - case AI_LWO_LINE: - key.inter = LWO::IT_LINE; - break; - case AI_LWO_TCB: - key.inter = LWO::IT_TCB; - break; - case AI_LWO_HERM: - key.inter = LWO::IT_HERM; - break; - case AI_LWO_BEZI: - key.inter = LWO::IT_BEZI; - break; - case AI_LWO_BEZ2: - key.inter = LWO::IT_BEZ2; - break; - default: - ASSIMP_LOG_WARN("LWO2: Unknown interval interpolation mode"); - }; - - // todo ... read params - } - break; - } - - default: - ASSIMP_LOG_WARN("LWO2: Encountered unknown ENVL subchunk"); - break; - } - // regardless how much we did actually read, go to the next chunk - mFileBuffer = next; - } -} - -// ------------------------------------------------------------------------------------------------ -// Load file - master function -void LWOImporter::LoadLWO2File() { - bool skip = false; - - LE_NCONST uint8_t *const end = mFileBuffer + fileSize; - unsigned int iUnnamed = 0; - while (true) { - if (mFileBuffer + sizeof(IFF::ChunkHeader) > end) break; - const IFF::ChunkHeader head = IFF::LoadChunk(mFileBuffer); - - if (mFileBuffer + head.length > end) { - throw DeadlyImportError("LWO2: Chunk length points behind the file"); - break; - } - uint8_t *const next = mFileBuffer + head.length; - - if (!head.length) { - mFileBuffer = next; - continue; - } - - switch (head.type) { - // new layer - case AI_LWO_LAYR: { - // add a new layer to the list .... - mLayers->push_back(LWO::Layer()); - LWO::Layer &layer = mLayers->back(); - mCurLayer = &layer; - - AI_LWO_VALIDATE_CHUNK_LENGTH(head.length, LAYR, 16); - - // layer index. - layer.mIndex = GetU2(); - - // Continue loading this layer or ignore it? Check the layer index property - if (UINT_MAX != configLayerIndex && (configLayerIndex - 1) != layer.mIndex) { - skip = true; - } else - skip = false; - - // pivot point - mFileBuffer += 2; /* unknown */ - mCurLayer->mPivot.x = GetF4(); - mCurLayer->mPivot.y = GetF4(); - mCurLayer->mPivot.z = GetF4(); - GetS0(layer.mName, head.length - 16); - - // if the name is empty, generate a default name - if (layer.mName.empty()) { - char buffer[128]; // should be sufficiently large - ::ai_snprintf(buffer, 128, "Layer_%i", iUnnamed++); - layer.mName = buffer; - } - - // load this layer or ignore it? Check the layer name property - if (configLayerName.length() && configLayerName != layer.mName) { - skip = true; - } else - hasNamedLayer = true; - - // optional: parent of this layer - if (mFileBuffer + 2 <= next) - layer.mParent = GetU2(); - else - layer.mParent = (uint16_t) -1; - - // Set layer skip parameter - layer.skip = skip; - - break; - } - - // vertex list - case AI_LWO_PNTS: { - if (skip) - break; - - unsigned int old = (unsigned int)mCurLayer->mTempPoints.size(); - LoadLWOPoints(head.length); - mCurLayer->mPointIDXOfs = old; - break; - } - // vertex tags - case AI_LWO_VMAD: - if (mCurLayer->mFaces.empty()) { - ASSIMP_LOG_WARN("LWO2: Unexpected VMAD chunk"); - break; - } - // --- intentionally no break here - case AI_LWO_VMAP: { - if (skip) - break; - - if (mCurLayer->mTempPoints.empty()) - ASSIMP_LOG_WARN("LWO2: Unexpected VMAP chunk"); - else - LoadLWO2VertexMap(head.length, head.type == AI_LWO_VMAD); - break; - } - // face list - case AI_LWO_POLS: { - if (skip) - break; - - unsigned int old = (unsigned int)mCurLayer->mFaces.size(); - LoadLWO2Polygons(head.length); - mCurLayer->mFaceIDXOfs = old; - break; - } - // polygon tags - case AI_LWO_PTAG: { - if (skip) - break; - - if (mCurLayer->mFaces.empty()) { - ASSIMP_LOG_WARN("LWO2: Unexpected PTAG"); - } else { - LoadLWO2PolygonTags(head.length); - } - break; - } - // list of tags - case AI_LWO_TAGS: { - if (!mTags->empty()) { - ASSIMP_LOG_WARN("LWO2: SRFS chunk encountered twice"); - } else { - LoadLWOTags(head.length); - } - break; - } - - // surface chunk - case AI_LWO_SURF: { - LoadLWO2Surface(head.length); - break; - } - - // clip chunk - case AI_LWO_CLIP: { - LoadLWO2Clip(head.length); - break; - } - - // envelope chunk - case AI_LWO_ENVL: { - LoadLWO2Envelope(head.length); - break; - } - } - mFileBuffer = next; - } -} - -#endif // !! ASSIMP_BUILD_NO_LWO_IMPORTER |