1 files changed, 231 insertions, 0 deletions
diff --git a/src/mesh/assimp-master/code/PostProcessing/MakeVerboseFormat.cpp b/src/mesh/assimp-master/code/PostProcessing/MakeVerboseFormat.cpp
new file mode 100644
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--- /dev/null
+++ b/src/mesh/assimp-master/code/PostProcessing/MakeVerboseFormat.cpp
@@ -0,0 +1,231 @@
+/*
+---------------------------------------------------------------------------
+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 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(nullptr != 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(nullptr != pcMesh);
+
+    unsigned int iOldNumVertices = pcMesh->mNumVertices;
+    const unsigned int iNumVerts = pcMesh->mNumFaces * 3;
+
+    aiVector3D *pvPositions = new aiVector3D[iNumVerts];
+
+    aiVector3D *pvNormals = nullptr;
+    if (pcMesh->HasNormals()) {
+        pvNormals = new aiVector3D[iNumVerts];
+    }
+    aiVector3D *pvTangents = nullptr, *pvBitangents = nullptr;
+    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 boneIdx = 0; boneIdx < pcMesh->mBones[i]->mNumWeights; ++boneIdx) {
+                    const aiVertexWeight &w = pcMesh->mBones[i]->mWeights[boneIdx];
+                    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 pp = 0;
+            while (pcMesh->HasTextureCoords(pp)) {
+                apvTextureCoords[pp][iIndex] = pcMesh->mTextureCoords[pp][pcFace->mIndices[q]];
+                ++pp;
+            }
+            pp = 0;
+            while (pcMesh->HasVertexColors(pp)) {
+                apvColorSets[pp][iIndex] = pcMesh->mColors[pp][pcFace->mIndices[q]];
+                ++pp;
+            }
+            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()];
+            pcMesh->mBones[i]->mNumWeights = static_cast<unsigned int>(newWeights[i].size());
+            aiVertexWeight *weightToCopy = &(newWeights[i][0]);
+            memcpy(pcMesh->mBones[i]->mWeights, weightToCopy,
+                    sizeof(aiVertexWeight) * newWeights[i].size());
+        } else {
+            pcMesh->mBones[i]->mWeights = nullptr;
+        }
+    }
+    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);
+}
+
+// ------------------------------------------------------------------------------------------------
+bool IsMeshInVerboseFormat(const aiMesh *mesh) {
+    // avoid slow vector<bool> specialization
+    std::vector<unsigned int> seen(mesh->mNumVertices, 0);
+    for (unsigned int i = 0; i < mesh->mNumFaces; ++i) {
+        const aiFace &f = mesh->mFaces[i];
+        for (unsigned int j = 0; j < f.mNumIndices; ++j) {
+            if (++seen[f.mIndices[j]] == 2) {
+                // found a duplicate index
+                return false;
+            }
+        }
+    }
+
+    return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+bool MakeVerboseFormatProcess::IsVerboseFormat(const aiScene *pScene) {
+    for (unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
+        if (!IsMeshInVerboseFormat(pScene->mMeshes[i])) {
+            return false;
+        }
+    }
+
+    return true;
+}