move 3rd-party librarys into libs/ and add built-in honeysuckle

1 files changed, 233 insertions, 0 deletions

diff --git a/libs/assimp/code/AssetLib/STL/STLExporter.cpp b/libs/assimp/code/AssetLib/STL/STLExporter.cpp
new file mode 100644
index 0000000..9bbc206
--- /dev/null
+++ b/libs/assimp/code/AssetLib/STL/STLExporter.cpp
@@ -0,0 +1,233 @@
+/*
+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.
+
+----------------------------------------------------------------------
+*/
+
+
+
+#if !defined(ASSIMP_BUILD_NO_EXPORT) && !defined(ASSIMP_BUILD_NO_STL_EXPORTER)
+
+#include "STLExporter.h"
+#include <assimp/version.h>
+#include <assimp/IOSystem.hpp>
+#include <assimp/scene.h>
+#include <assimp/Exporter.hpp>
+#include <memory>
+#include <assimp/Exceptional.h>
+#include <assimp/ByteSwapper.h>
+
+using namespace Assimp;
+
+namespace Assimp    {
+
+// ------------------------------------------------------------------------------------------------
+// Worker function for exporting a scene to Stereolithograpy. Prototyped and registered in Exporter.cpp
+void ExportSceneSTL(const char* pFile,IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* pProperties )
+{
+    bool exportPointClouds = pProperties->GetPropertyBool(AI_CONFIG_EXPORT_POINT_CLOUDS);
+
+    // invoke the exporter
+    STLExporter exporter(pFile, pScene, exportPointClouds );
+
+    if (exporter.mOutput.fail()) {
+        throw DeadlyExportError("output data creation failed. Most likely the file became too large: " + std::string(pFile));
+    }
+
+    // we're still here - export successfully completed. Write the file.
+    std::unique_ptr<IOStream> outfile (pIOSystem->Open(pFile,"wt"));
+    if (outfile == nullptr) {
+        throw DeadlyExportError("could not open output .stl file: " + std::string(pFile));
+    }
+
+    outfile->Write( exporter.mOutput.str().c_str(), static_cast<size_t>(exporter.mOutput.tellp()),1);
+}
+void ExportSceneSTLBinary(const char* pFile,IOSystem* pIOSystem, const aiScene* pScene, const ExportProperties* pProperties )
+{
+    bool exportPointClouds = pProperties->GetPropertyBool(AI_CONFIG_EXPORT_POINT_CLOUDS);
+
+    // invoke the exporter
+    STLExporter exporter(pFile, pScene, exportPointClouds, true);
+
+    if (exporter.mOutput.fail()) {
+        throw DeadlyExportError("output data creation failed. Most likely the file became too large: " + std::string(pFile));
+    }
+
+    // we're still here - export successfully completed. Write the file.
+    std::unique_ptr<IOStream> outfile (pIOSystem->Open(pFile,"wb"));
+    if (outfile == nullptr) {
+        throw DeadlyExportError("could not open output .stl file: " + std::string(pFile));
+    }
+
+    outfile->Write( exporter.mOutput.str().c_str(), static_cast<size_t>(exporter.mOutput.tellp()),1);
+}
+
+} // end of namespace Assimp
+
+static const char *SolidToken = "solid";
+static const char *EndSolidToken = "endsolid";
+
+// ------------------------------------------------------------------------------------------------
+STLExporter::STLExporter(const char* _filename, const aiScene* pScene, bool exportPointClouds, bool binary)
+: filename(_filename)
+, endl("\n")
+{
+    // make sure that all formatting happens using the standard, C locale and not the user's current locale
+    const std::locale& l = std::locale("C");
+    mOutput.imbue(l);
+    mOutput.precision(ASSIMP_AI_REAL_TEXT_PRECISION);
+    if (binary) {
+        char buf[80] = {0} ;
+        buf[0] = 'A'; buf[1] = 's'; buf[2] = 's'; buf[3] = 'i'; buf[4] = 'm'; buf[5] = 'p';
+        buf[6] = 'S'; buf[7] = 'c'; buf[8] = 'e'; buf[9] = 'n'; buf[10] = 'e';
+        mOutput.write(buf, 80);
+        unsigned int meshnum = 0;
+        for(unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
+            for (unsigned int j = 0; j < pScene->mMeshes[i]->mNumFaces; ++j) {
+                meshnum++;
+            }
+        }
+        AI_SWAP4(meshnum);
+        mOutput.write((char *)&meshnum, 4);
+
+        if (exportPointClouds) {
+            throw DeadlyExportError("This functionality is not yet implemented for binary output.");
+        }
+
+        for(unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
+            WriteMeshBinary(pScene->mMeshes[i]);
+        }
+    } else {
+
+        // Exporting only point clouds
+        if (exportPointClouds) {
+            WritePointCloud("Assimp_Pointcloud", pScene );
+            return;
+        }
+
+        // Export the assimp mesh
+        const std::string name = "AssimpScene";
+        mOutput << SolidToken << " " << name << endl;
+        for(unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
+            WriteMesh(pScene->mMeshes[ i ]);
+        }
+        mOutput << EndSolidToken << " " << name << endl;
+    }
+}
+
+// ------------------------------------------------------------------------------------------------
+void STLExporter::WritePointCloud(const std::string &name, const aiScene* pScene) {
+    mOutput << " " << SolidToken << " " << name << endl;
+    aiVector3D nor;
+    mOutput << " facet normal " << nor.x << " " << nor.y << " " << nor.z << endl;
+    for (unsigned int i = 0; i < pScene->mNumMeshes; ++i) {
+        aiMesh *mesh = pScene->mMeshes[i];
+        if (nullptr == mesh) {
+            continue;
+        }
+
+        for (unsigned int a = 0; a < mesh->mNumVertices; ++a) {
+            const aiVector3D& v = mesh->mVertices[a];
+            mOutput << "  vertex " << v.x << " " << v.y << " " << v.z << endl;
+            mOutput << "  vertex " << v.x << " " << v.y << " " << v.z << endl;
+            mOutput << "  vertex " << v.x << " " << v.y << " " << v.z << endl;
+        }
+    }
+    mOutput << EndSolidToken << " " << name << endl;
+}
+
+// ------------------------------------------------------------------------------------------------
+void STLExporter::WriteMesh(const aiMesh* m)
+{
+    for (unsigned int i = 0; i < m->mNumFaces; ++i) {
+        const aiFace& f = m->mFaces[i];
+
+        // we need per-face normals. We specified aiProcess_GenNormals as pre-requisite for this exporter,
+        // but nonetheless we have to expect per-vertex normals.
+        aiVector3D nor;
+        if (m->mNormals) {
+            for(unsigned int a = 0; a < f.mNumIndices; ++a) {
+                nor += m->mNormals[f.mIndices[a]];
+            }
+            nor.NormalizeSafe();
+        }
+        mOutput << " facet normal " << nor.x << " " << nor.y << " " << nor.z << endl;
+        mOutput << "  outer loop" << endl;
+        for(unsigned int a = 0; a < f.mNumIndices; ++a) {
+            const aiVector3D& v  = m->mVertices[f.mIndices[a]];
+            mOutput << "  vertex " << v.x << " " << v.y << " " << v.z << endl;
+        }
+
+        mOutput << "  endloop" << endl;
+        mOutput << " endfacet" << endl << endl;
+    }
+}
+
+void STLExporter::WriteMeshBinary(const aiMesh* m)
+{
+    for (unsigned int i = 0; i < m->mNumFaces; ++i) {
+        const aiFace& f = m->mFaces[i];
+        // we need per-face normals. We specified aiProcess_GenNormals as pre-requisite for this exporter,
+        // but nonetheless we have to expect per-vertex normals.
+        aiVector3D nor;
+        if (m->mNormals) {
+            for(unsigned int a = 0; a < f.mNumIndices; ++a) {
+                nor += m->mNormals[f.mIndices[a]];
+            }
+            nor.Normalize();
+        }
+        // STL binary files use 4-byte floats. This may possibly cause loss of precision
+        // for clients using 8-byte doubles
+        float nx = (float) nor.x;
+        float ny = (float) nor.y;
+        float nz = (float) nor.z;
+        AI_SWAP4(nx); AI_SWAP4(ny); AI_SWAP4(nz);
+        mOutput.write((char *)&nx, 4); mOutput.write((char *)&ny, 4); mOutput.write((char *)&nz, 4);
+        for(unsigned int a = 0; a < f.mNumIndices; ++a) {
+            const aiVector3D& v  = m->mVertices[f.mIndices[a]];
+            float vx = (float) v.x, vy = (float) v.y, vz = (float) v.z;
+            AI_SWAP4(vx); AI_SWAP4(vy); AI_SWAP4(vz);
+            mOutput.write((char *)&vx, 4); mOutput.write((char *)&vy, 4); mOutput.write((char *)&vz, 4);
+        }
+        char dummy[2] = {0};
+        mOutput.write(dummy, 2);
+    }
+}
+
+#endif