delete src/mesh/assimp-master

1 files changed, 0 insertions, 575 deletions

diff --git a/src/mesh/assimp-master/code/AssetLib/STL/STLLoader.cpp b/src/mesh/assimp-master/code/AssetLib/STL/STLLoader.cpp
deleted file mode 100644
index 8de57f1..0000000
--- a/src/mesh/assimp-master/code/AssetLib/STL/STLLoader.cpp
+++ /dev/null
@@ -1,575 +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 Implementation of the STL importer class */
-
-#ifndef ASSIMP_BUILD_NO_STL_IMPORTER
-
-#include "STLLoader.h"
-#include <assimp/ParsingUtils.h>
-#include <assimp/fast_atof.h>
-#include <assimp/importerdesc.h>
-#include <assimp/scene.h>
-#include <assimp/DefaultLogger.hpp>
-#include <assimp/IOSystem.hpp>
-#include <memory>
-
-using namespace Assimp;
-
-namespace {
-
-static const aiImporterDesc desc = {
-    "Stereolithography (STL) Importer",
-    "",
-    "",
-    "",
-    aiImporterFlags_SupportTextFlavour | aiImporterFlags_SupportBinaryFlavour,
-    0,
-    0,
-    0,
-    0,
-    "stl"
-};
-
-// A valid binary STL buffer should consist of the following elements, in order:
-// 1) 80 byte header
-// 2) 4 byte face count
-// 3) 50 bytes per face
-static bool IsBinarySTL(const char *buffer, unsigned int fileSize) {
-    if (fileSize < 84) {
-        return false;
-    }
-
-    const char *facecount_pos = buffer + 80;
-    uint32_t faceCount(0);
-    ::memcpy(&faceCount, facecount_pos, sizeof(uint32_t));
-    const uint32_t expectedBinaryFileSize = faceCount * 50 + 84;
-
-    return expectedBinaryFileSize == fileSize;
-}
-
-static const size_t BufferSize = 500;
-static const char UnicodeBoundary = 127;
-
-// An ascii STL buffer will begin with "solid NAME", where NAME is optional.
-// Note: The "solid NAME" check is necessary, but not sufficient, to determine
-// if the buffer is ASCII; a binary header could also begin with "solid NAME".
-static bool IsAsciiSTL(const char *buffer, unsigned int fileSize) {
-    if (IsBinarySTL(buffer, fileSize))
-        return false;
-
-    const char *bufferEnd = buffer + fileSize;
-
-    if (!SkipSpaces(&buffer)) {
-        return false;
-    }
-
-    if (buffer + 5 >= bufferEnd) {
-        return false;
-    }
-
-    bool isASCII(strncmp(buffer, "solid", 5) == 0);
-    if (isASCII) {
-        // A lot of importers are write solid even if the file is binary. So we have to check for ASCII-characters.
-        if (fileSize >= BufferSize) {
-            isASCII = true;
-            for (unsigned int i = 0; i < BufferSize; i++) {
-                if (buffer[i] > UnicodeBoundary) {
-                    isASCII = false;
-                    break;
-                }
-            }
-        }
-    }
-    return isASCII;
-}
-} // namespace
-
-// ------------------------------------------------------------------------------------------------
-// Constructor to be privately used by Importer
-STLImporter::STLImporter() :
-        mBuffer(),
-        mFileSize(0),
-        mScene() {
-   // empty
-}
-
-// ------------------------------------------------------------------------------------------------
-// Destructor, private as well
-STLImporter::~STLImporter() {
-    // empty
-}
-
-// ------------------------------------------------------------------------------------------------
-// Returns whether the class can handle the format of the given file.
-bool STLImporter::CanRead(const std::string &pFile, IOSystem *pIOHandler, bool /*checkSig*/) const {
-    static const char *tokens[] = { "STL", "solid" };
-    return SearchFileHeaderForToken(pIOHandler, pFile, tokens, AI_COUNT_OF(tokens));
-}
-
-// ------------------------------------------------------------------------------------------------
-const aiImporterDesc *STLImporter::GetInfo() const {
-    return &desc;
-}
-
-void addFacesToMesh(aiMesh *pMesh) {
-    pMesh->mFaces = new aiFace[pMesh->mNumFaces];
-    for (unsigned int i = 0, p = 0; i < pMesh->mNumFaces; ++i) {
-
-        aiFace &face = pMesh->mFaces[i];
-        face.mIndices = new unsigned int[face.mNumIndices = 3];
-        for (unsigned int o = 0; o < 3; ++o, ++p) {
-            face.mIndices[o] = p;
-        }
-    }
-}
-
-// ------------------------------------------------------------------------------------------------
-// Imports the given file into the given scene structure.
-void STLImporter::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 STL file ", pFile, ".");
-    }
-
-    mFileSize = (unsigned int)file->FileSize();
-
-    // allocate storage and copy the contents of the file to a memory buffer
-    // (terminate it with zero)
-    std::vector<char> buffer2;
-    TextFileToBuffer(file.get(), buffer2);
-
-    mScene = pScene;
-    mBuffer = &buffer2[0];
-
-    // the default vertex color is light gray.
-    mClrColorDefault.r = mClrColorDefault.g = mClrColorDefault.b = mClrColorDefault.a = (ai_real)0.6;
-
-    // allocate a single node
-    mScene->mRootNode = new aiNode();
-
-    bool bMatClr = false;
-
-    if (IsBinarySTL(mBuffer, mFileSize)) {
-        bMatClr = LoadBinaryFile();
-    } else if (IsAsciiSTL(mBuffer, mFileSize)) {
-        LoadASCIIFile(mScene->mRootNode);
-    } else {
-        throw DeadlyImportError("Failed to determine STL storage representation for ", pFile, ".");
-    }
-
-    // create a single default material, using a white diffuse color for consistency with
-    // other geometric types (e.g., PLY).
-    aiMaterial *pcMat = new aiMaterial();
-    aiString s;
-    s.Set(AI_DEFAULT_MATERIAL_NAME);
-    pcMat->AddProperty(&s, AI_MATKEY_NAME);
-
-    aiColor4D clrDiffuse(ai_real(1.0), ai_real(1.0), ai_real(1.0), ai_real(1.0));
-    if (bMatClr) {
-        clrDiffuse = mClrColorDefault;
-    }
-    pcMat->AddProperty(&clrDiffuse, 1, AI_MATKEY_COLOR_DIFFUSE);
-    pcMat->AddProperty(&clrDiffuse, 1, AI_MATKEY_COLOR_SPECULAR);
-    clrDiffuse = aiColor4D(ai_real(0.05), ai_real(0.05), ai_real(0.05), ai_real(1.0));
-    pcMat->AddProperty(&clrDiffuse, 1, AI_MATKEY_COLOR_AMBIENT);
-
-    mScene->mNumMaterials = 1;
-    mScene->mMaterials = new aiMaterial *[1];
-    mScene->mMaterials[0] = pcMat;
-
-    mBuffer = nullptr;
-}
-
-// ------------------------------------------------------------------------------------------------
-// Read an ASCII STL file
-void STLImporter::LoadASCIIFile(aiNode *root) {
-    std::vector<aiMesh *> meshes;
-    std::vector<aiNode *> nodes;
-    const char *sz = mBuffer;
-    const char *bufferEnd = mBuffer + mFileSize;
-    std::vector<aiVector3D> positionBuffer;
-    std::vector<aiVector3D> normalBuffer;
-
-    // try to guess how many vertices we could have
-    // assume we'll need 160 bytes for each face
-    size_t sizeEstimate = std::max(1u, mFileSize / 160u) * 3;
-    positionBuffer.reserve(sizeEstimate);
-    normalBuffer.reserve(sizeEstimate);
-
-    while (IsAsciiSTL(sz, static_cast<unsigned int>(bufferEnd - sz))) {
-        std::vector<unsigned int> meshIndices;
-        aiMesh *pMesh = new aiMesh();
-        pMesh->mMaterialIndex = 0;
-        meshIndices.push_back((unsigned int)meshes.size());
-        meshes.push_back(pMesh);
-        aiNode *node = new aiNode;
-        node->mParent = root;
-        nodes.push_back(node);
-        SkipSpaces(&sz);
-        ai_assert(!IsLineEnd(sz));
-
-        sz += 5; // skip the "solid"
-        SkipSpaces(&sz);
-        const char *szMe = sz;
-        while (!::IsSpaceOrNewLine(*sz)) {
-            sz++;
-        }
-
-        size_t temp = (size_t)(sz - szMe);
-        // setup the name of the node
-        if ( temp ) {
-            if (temp >= MAXLEN) {
-                throw DeadlyImportError("STL: Node name too long");
-            }
-            std::string name(szMe, temp);
-            node->mName.Set(name.c_str());
-            pMesh->mName.Set(name.c_str());
-        } else {
-            mScene->mRootNode->mName.Set("<STL_ASCII>");
-        }
-
-        unsigned int faceVertexCounter = 3;
-        for (;;) {
-            // go to the next token
-            if (!SkipSpacesAndLineEnd(&sz)) {
-                // seems we're finished although there was no end marker
-                ASSIMP_LOG_WARN("STL: unexpected EOF. \'endsolid\' keyword was expected");
-                break;
-            }
-            // facet normal -0.13 -0.13 -0.98
-            if (!strncmp(sz, "facet", 5) && IsSpaceOrNewLine(*(sz + 5)) && *(sz + 5) != '\0') {
-
-                if (faceVertexCounter != 3) {
-                    ASSIMP_LOG_WARN("STL: A new facet begins but the old is not yet complete");
-                }
-                faceVertexCounter = 0;
-                normalBuffer.push_back(aiVector3D());
-                aiVector3D *vn = &normalBuffer.back();
-
-                sz += 6;
-                SkipSpaces(&sz);
-                if (strncmp(sz, "normal", 6)) {
-                    ASSIMP_LOG_WARN("STL: a facet normal vector was expected but not found");
-                } else {
-                    if (sz[6] == '\0') {
-                        throw DeadlyImportError("STL: unexpected EOF while parsing facet");
-                    }
-                    sz += 7;
-                    SkipSpaces(&sz);
-                    sz = fast_atoreal_move<ai_real>(sz, (ai_real &)vn->x);
-                    SkipSpaces(&sz);
-                    sz = fast_atoreal_move<ai_real>(sz, (ai_real &)vn->y);
-                    SkipSpaces(&sz);
-                    sz = fast_atoreal_move<ai_real>(sz, (ai_real &)vn->z);
-                    normalBuffer.push_back(*vn);
-                    normalBuffer.push_back(*vn);
-                }
-            } else if (!strncmp(sz, "vertex", 6) && ::IsSpaceOrNewLine(*(sz + 6))) { // vertex 1.50000 1.50000 0.00000
-                if (faceVertexCounter >= 3) {
-                    ASSIMP_LOG_ERROR("STL: a facet with more than 3 vertices has been found");
-                    ++sz;
-                } else {
-                    if (sz[6] == '\0') {
-                        throw DeadlyImportError("STL: unexpected EOF while parsing facet");
-                    }
-                    sz += 7;
-                    SkipSpaces(&sz);
-                    positionBuffer.push_back(aiVector3D());
-                    aiVector3D *vn = &positionBuffer.back();
-                    sz = fast_atoreal_move<ai_real>(sz, (ai_real &)vn->x);
-                    SkipSpaces(&sz);
-                    sz = fast_atoreal_move<ai_real>(sz, (ai_real &)vn->y);
-                    SkipSpaces(&sz);
-                    sz = fast_atoreal_move<ai_real>(sz, (ai_real &)vn->z);
-                    faceVertexCounter++;
-                }
-            } else if (!::strncmp(sz, "endsolid", 8)) {
-                do {
-                    ++sz;
-                } while (!::IsLineEnd(*sz));
-                SkipSpacesAndLineEnd(&sz);
-                // finished!
-                break;
-            } else { // else skip the whole identifier
-                do {
-                    ++sz;
-                } while (!::IsSpaceOrNewLine(*sz));
-            }
-        }
-
-        if (positionBuffer.empty()) {
-            pMesh->mNumFaces = 0;
-            ASSIMP_LOG_WARN("STL: mesh is empty or invalid; no data loaded");
-        }
-        if (positionBuffer.size() % 3 != 0) {
-            pMesh->mNumFaces = 0;
-            throw DeadlyImportError("STL: Invalid number of vertices");
-        }
-        if (normalBuffer.size() != positionBuffer.size()) {
-            pMesh->mNumFaces = 0;
-            throw DeadlyImportError("Normal buffer size does not match position buffer size");
-        }
-
-        // only process positionbuffer when filled, else exception when accessing with index operator
-        // see line 353: only warning is triggered
-        // see line 373(now): access to empty positionbuffer with index operator forced exception
-        if (!positionBuffer.empty()) {
-            pMesh->mNumFaces = static_cast<unsigned int>(positionBuffer.size() / 3);
-            pMesh->mNumVertices = static_cast<unsigned int>(positionBuffer.size());
-            pMesh->mVertices = new aiVector3D[pMesh->mNumVertices];
-            for (size_t i=0; i<pMesh->mNumVertices; ++i ) {
-                pMesh->mVertices[i].x = positionBuffer[i].x;
-                pMesh->mVertices[i].y = positionBuffer[i].y;
-                pMesh->mVertices[i].z = positionBuffer[i].z;
-            }
-            positionBuffer.clear();
-        }
-        // also only process normalBuffer when filled, else exception when accessing with index operator
-        if (!normalBuffer.empty()) {
-            pMesh->mNormals = new aiVector3D[pMesh->mNumVertices];
-            for (size_t i=0; i<pMesh->mNumVertices; ++i ) {
-                pMesh->mNormals[i].x = normalBuffer[i].x;
-                pMesh->mNormals[i].y = normalBuffer[i].y;
-                pMesh->mNormals[i].z = normalBuffer[i].z;
-            }
-            normalBuffer.clear();
-        }
-
-        // now copy faces
-        addFacesToMesh(pMesh);
-
-        // assign the meshes to the current node
-        pushMeshesToNode(meshIndices, node);
-    }
-
-    // now add the loaded meshes
-    mScene->mNumMeshes = (unsigned int)meshes.size();
-    mScene->mMeshes = new aiMesh *[mScene->mNumMeshes];
-    for (size_t i = 0; i < meshes.size(); i++) {
-        mScene->mMeshes[i] = meshes[i];
-    }
-
-    root->mNumChildren = (unsigned int)nodes.size();
-    root->mChildren = new aiNode *[root->mNumChildren];
-    for (size_t i = 0; i < nodes.size(); ++i) {
-        root->mChildren[i] = nodes[i];
-    }
-}
-
-// ------------------------------------------------------------------------------------------------
-// Read a binary STL file
-bool STLImporter::LoadBinaryFile() {
-    // allocate one mesh
-    mScene->mNumMeshes = 1;
-    mScene->mMeshes = new aiMesh *[1];
-    aiMesh *pMesh = mScene->mMeshes[0] = new aiMesh();
-    pMesh->mMaterialIndex = 0;
-
-    // skip the first 80 bytes
-    if (mFileSize < 84) {
-        throw DeadlyImportError("STL: file is too small for the header");
-    }
-    bool bIsMaterialise = false;
-
-    // search for an occurrence of "COLOR=" in the header
-    const unsigned char *sz2 = (const unsigned char *)mBuffer;
-    const unsigned char *const szEnd = sz2 + 80;
-    while (sz2 < szEnd) {
-
-        if ('C' == *sz2++ && 'O' == *sz2++ && 'L' == *sz2++ &&
-                'O' == *sz2++ && 'R' == *sz2++ && '=' == *sz2++) {
-
-            // read the default vertex color for facets
-            bIsMaterialise = true;
-            ASSIMP_LOG_INFO("STL: Taking code path for Materialise files");
-            const ai_real invByte = (ai_real)1.0 / (ai_real)255.0;
-            mClrColorDefault.r = (*sz2++) * invByte;
-            mClrColorDefault.g = (*sz2++) * invByte;
-            mClrColorDefault.b = (*sz2++) * invByte;
-            mClrColorDefault.a = (*sz2++) * invByte;
-            break;
-        }
-    }
-    const unsigned char *sz = (const unsigned char *)mBuffer + 80;
-
-    // now read the number of facets
-    mScene->mRootNode->mName.Set("<STL_BINARY>");
-
-    pMesh->mNumFaces = *((uint32_t *)sz);
-    sz += 4;
-
-    if (mFileSize < 84 + pMesh->mNumFaces * 50) {
-        throw DeadlyImportError("STL: file is too small to hold all facets");
-    }
-
-    if (!pMesh->mNumFaces) {
-        throw DeadlyImportError("STL: file is empty. There are no facets defined");
-    }
-
-    pMesh->mNumVertices = pMesh->mNumFaces * 3;
-
-    aiVector3D *vp = pMesh->mVertices = new aiVector3D[pMesh->mNumVertices];
-    aiVector3D *vn = pMesh->mNormals = new aiVector3D[pMesh->mNumVertices];
-
-    typedef aiVector3t<float> aiVector3F;
-    aiVector3F *theVec;
-    aiVector3F theVec3F;
-
-    for (unsigned int i = 0; i < pMesh->mNumFaces; ++i) {
-        // NOTE: Blender sometimes writes empty normals ... this is not
-        // our fault ... the RemoveInvalidData helper step should fix that
-
-        // There's one normal for the face in the STL; use it three times
-        // for vertex normals
-        theVec = (aiVector3F *)sz;
-        ::memcpy(&theVec3F, theVec, sizeof(aiVector3F));
-        vn->x = theVec3F.x;
-        vn->y = theVec3F.y;
-        vn->z = theVec3F.z;
-        *(vn + 1) = *vn;
-        *(vn + 2) = *vn;
-        ++theVec;
-        vn += 3;
-
-        // vertex 1
-        ::memcpy(&theVec3F, theVec, sizeof(aiVector3F));
-        vp->x = theVec3F.x;
-        vp->y = theVec3F.y;
-        vp->z = theVec3F.z;
-        ++theVec;
-        ++vp;
-
-        // vertex 2
-        ::memcpy(&theVec3F, theVec, sizeof(aiVector3F));
-        vp->x = theVec3F.x;
-        vp->y = theVec3F.y;
-        vp->z = theVec3F.z;
-        ++theVec;
-        ++vp;
-
-        // vertex 3
-        ::memcpy(&theVec3F, theVec, sizeof(aiVector3F));
-        vp->x = theVec3F.x;
-        vp->y = theVec3F.y;
-        vp->z = theVec3F.z;
-        ++theVec;
-        ++vp;
-
-        sz = (const unsigned char *)theVec;
-
-        uint16_t color = *((uint16_t *)sz);
-        sz += 2;
-
-        if (color & (1 << 15)) {
-            // seems we need to take the color
-            if (!pMesh->mColors[0]) {
-                pMesh->mColors[0] = new aiColor4D[pMesh->mNumVertices];
-                for (unsigned int j = 0; j < pMesh->mNumVertices; ++j) {
-                    *pMesh->mColors[0]++ = mClrColorDefault;
-                }
-                pMesh->mColors[0] -= pMesh->mNumVertices;
-
-                ASSIMP_LOG_INFO("STL: Mesh has vertex colors");
-            }
-            aiColor4D *clr = &pMesh->mColors[0][i * 3];
-            clr->a = 1.0;
-            const ai_real invVal((ai_real)1.0 / (ai_real)31.0);
-            if (bIsMaterialise) // this is reversed
-            {
-                clr->r = (color & 0x31u) * invVal;
-                clr->g = ((color & (0x31u << 5)) >> 5u) * invVal;
-                clr->b = ((color & (0x31u << 10)) >> 10u) * invVal;
-            } else {
-                clr->b = (color & 0x31u) * invVal;
-                clr->g = ((color & (0x31u << 5)) >> 5u) * invVal;
-                clr->r = ((color & (0x31u << 10)) >> 10u) * invVal;
-            }
-            // assign the color to all vertices of the face
-            *(clr + 1) = *clr;
-            *(clr + 2) = *clr;
-        }
-    }
-
-    // now copy faces
-    addFacesToMesh(pMesh);
-
-    aiNode *root = mScene->mRootNode;
-
-    // allocate one node
-    aiNode *node = new aiNode();
-    node->mParent = root;
-
-    root->mNumChildren = 1u;
-    root->mChildren = new aiNode *[root->mNumChildren];
-    root->mChildren[0] = node;
-
-    // add all created meshes to the single node
-    node->mNumMeshes = mScene->mNumMeshes;
-    node->mMeshes = new unsigned int[mScene->mNumMeshes];
-    for (unsigned int i = 0; i < mScene->mNumMeshes; ++i) {
-        node->mMeshes[i] = i;
-    }
-
-    if (bIsMaterialise && !pMesh->mColors[0]) {
-        // use the color as diffuse material color
-        return true;
-    }
-    return false;
-}
-
-void STLImporter::pushMeshesToNode(std::vector<unsigned int> &meshIndices, aiNode *node) {
-    ai_assert(nullptr != node);
-    if (meshIndices.empty()) {
-        return;
-    }
-
-    node->mNumMeshes = static_cast<unsigned int>(meshIndices.size());
-    node->mMeshes = new unsigned int[meshIndices.size()];
-    for (size_t i = 0; i < meshIndices.size(); ++i) {
-        node->mMeshes[i] = meshIndices[i];
-    }
-    meshIndices.clear();
-}
-
-#endif // !! ASSIMP_BUILD_NO_STL_IMPORTER