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Diffstat (limited to 'thirdparty/assimp/code/MakeVerboseFormat.cpp')
| -rw-r--r-- | thirdparty/assimp/code/MakeVerboseFormat.cpp | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/thirdparty/assimp/code/MakeVerboseFormat.cpp b/thirdparty/assimp/code/MakeVerboseFormat.cpp new file mode 100644 index 0000000000..50ff5ed93d --- /dev/null +++ b/thirdparty/assimp/code/MakeVerboseFormat.cpp @@ -0,0 +1,226 @@ +/* +--------------------------------------------------------------------------- +Open Asset Import Library (assimp) +--------------------------------------------------------------------------- + +Copyright (c) 2006-2019, 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 Implementation of the post processing step "MakeVerboseFormat" +*/ + + +#include "MakeVerboseFormat.h" +#include <assimp/scene.h> +#include <assimp/DefaultLogger.hpp> + +using namespace Assimp; + +// ------------------------------------------------------------------------------------------------ +MakeVerboseFormatProcess::MakeVerboseFormatProcess() +{ + // nothing to do here +} +// ------------------------------------------------------------------------------------------------ +MakeVerboseFormatProcess::~MakeVerboseFormatProcess() +{ + // nothing to do here +} +// ------------------------------------------------------------------------------------------------ +// Executes the post processing step on the given imported data. +void MakeVerboseFormatProcess::Execute( aiScene* pScene) +{ + ai_assert(NULL != pScene); + ASSIMP_LOG_DEBUG("MakeVerboseFormatProcess begin"); + + bool bHas = false; + for( unsigned int a = 0; a < pScene->mNumMeshes; a++) + { + if( MakeVerboseFormat( pScene->mMeshes[a])) + bHas = true; + } + if (bHas) { + ASSIMP_LOG_INFO("MakeVerboseFormatProcess finished. There was much work to do ..."); + } else { + ASSIMP_LOG_DEBUG("MakeVerboseFormatProcess. There was nothing to do."); + } + + pScene->mFlags &= ~AI_SCENE_FLAGS_NON_VERBOSE_FORMAT; +} + +// ------------------------------------------------------------------------------------------------ +// Executes the post processing step on the given imported data. +bool MakeVerboseFormatProcess::MakeVerboseFormat(aiMesh* pcMesh) +{ + ai_assert(NULL != pcMesh); + + unsigned int iOldNumVertices = pcMesh->mNumVertices; + const unsigned int iNumVerts = pcMesh->mNumFaces*3; + + aiVector3D* pvPositions = new aiVector3D[ iNumVerts ]; + + aiVector3D* pvNormals = NULL; + if (pcMesh->HasNormals()) + { + pvNormals = new aiVector3D[iNumVerts]; + } + aiVector3D* pvTangents = NULL, *pvBitangents = NULL; + if (pcMesh->HasTangentsAndBitangents()) + { + pvTangents = new aiVector3D[iNumVerts]; + pvBitangents = new aiVector3D[iNumVerts]; + } + + aiVector3D* apvTextureCoords[AI_MAX_NUMBER_OF_TEXTURECOORDS] = {0}; + aiColor4D* apvColorSets[AI_MAX_NUMBER_OF_COLOR_SETS] = {0}; + + unsigned int p = 0; + while (pcMesh->HasTextureCoords(p)) + apvTextureCoords[p++] = new aiVector3D[iNumVerts]; + + p = 0; + while (pcMesh->HasVertexColors(p)) + apvColorSets[p++] = new aiColor4D[iNumVerts]; + + // allocate enough memory to hold output bones and vertex weights ... + std::vector<aiVertexWeight>* newWeights = new std::vector<aiVertexWeight>[pcMesh->mNumBones]; + for (unsigned int i = 0;i < pcMesh->mNumBones;++i) { + newWeights[i].reserve(pcMesh->mBones[i]->mNumWeights*3); + } + + // iterate through all faces and build a clean list + unsigned int iIndex = 0; + for (unsigned int a = 0; a< pcMesh->mNumFaces;++a) + { + aiFace* pcFace = &pcMesh->mFaces[a]; + for (unsigned int q = 0; q < pcFace->mNumIndices;++q,++iIndex) + { + // need to build a clean list of bones, too + for (unsigned int i = 0;i < pcMesh->mNumBones;++i) + { + for (unsigned int a = 0; a < pcMesh->mBones[i]->mNumWeights;a++) + { + const aiVertexWeight& w = pcMesh->mBones[i]->mWeights[a]; + if(pcFace->mIndices[q] == w.mVertexId) + { + aiVertexWeight wNew; + wNew.mVertexId = iIndex; + wNew.mWeight = w.mWeight; + newWeights[i].push_back(wNew); + } + } + } + + pvPositions[iIndex] = pcMesh->mVertices[pcFace->mIndices[q]]; + + if (pcMesh->HasNormals()) + { + pvNormals[iIndex] = pcMesh->mNormals[pcFace->mIndices[q]]; + } + if (pcMesh->HasTangentsAndBitangents()) + { + pvTangents[iIndex] = pcMesh->mTangents[pcFace->mIndices[q]]; + pvBitangents[iIndex] = pcMesh->mBitangents[pcFace->mIndices[q]]; + } + + unsigned int p = 0; + while (pcMesh->HasTextureCoords(p)) + { + apvTextureCoords[p][iIndex] = pcMesh->mTextureCoords[p][pcFace->mIndices[q]]; + ++p; + } + p = 0; + while (pcMesh->HasVertexColors(p)) + { + apvColorSets[p][iIndex] = pcMesh->mColors[p][pcFace->mIndices[q]]; + ++p; + } + pcFace->mIndices[q] = iIndex; + } + } + + + + // build output vertex weights + for (unsigned int i = 0;i < pcMesh->mNumBones;++i) + { + delete [] pcMesh->mBones[i]->mWeights; + if (!newWeights[i].empty()) { + pcMesh->mBones[i]->mWeights = new aiVertexWeight[newWeights[i].size()]; + aiVertexWeight *weightToCopy = &( newWeights[i][0] ); + memcpy(pcMesh->mBones[i]->mWeights, weightToCopy, + sizeof(aiVertexWeight) * newWeights[i].size()); + } else { + pcMesh->mBones[i]->mWeights = NULL; + } + } + delete[] newWeights; + + // delete the old members + delete[] pcMesh->mVertices; + pcMesh->mVertices = pvPositions; + + p = 0; + while (pcMesh->HasTextureCoords(p)) + { + delete[] pcMesh->mTextureCoords[p]; + pcMesh->mTextureCoords[p] = apvTextureCoords[p]; + ++p; + } + p = 0; + while (pcMesh->HasVertexColors(p)) + { + delete[] pcMesh->mColors[p]; + pcMesh->mColors[p] = apvColorSets[p]; + ++p; + } + pcMesh->mNumVertices = iNumVerts; + + if (pcMesh->HasNormals()) + { + delete[] pcMesh->mNormals; + pcMesh->mNormals = pvNormals; + } + if (pcMesh->HasTangentsAndBitangents()) + { + delete[] pcMesh->mTangents; + pcMesh->mTangents = pvTangents; + delete[] pcMesh->mBitangents; + pcMesh->mBitangents = pvBitangents; + } + return (pcMesh->mNumVertices != iOldNumVertices); +} |