1 files changed, 254 insertions, 0 deletions
diff --git a/NvCloth/samples/external/assimp-4.1.0/code/OFFLoader.cpp b/NvCloth/samples/external/assimp-4.1.0/code/OFFLoader.cpp
new file mode 100644
index 0000000..5038176
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+++ b/NvCloth/samples/external/assimp-4.1.0/code/OFFLoader.cpp
@@ -0,0 +1,254 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2017, 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  OFFLoader.cpp
+ *  @brief Implementation of the OFF importer class
+ */
+
+
+#ifndef ASSIMP_BUILD_NO_OFF_IMPORTER
+
+// internal headers
+#include "OFFLoader.h"
+#include "ParsingUtils.h"
+#include "fast_atof.h"
+#include <memory>
+#include <assimp/IOSystem.hpp>
+#include <assimp/scene.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/importerdesc.h>
+
+using namespace Assimp;
+
+static const aiImporterDesc desc = {
+    "OFF Importer",
+    "",
+    "",
+    "",
+    aiImporterFlags_SupportBinaryFlavour,
+    0,
+    0,
+    0,
+    0,
+    "off"
+};
+
+// ------------------------------------------------------------------------------------------------
+// Constructor to be privately used by Importer
+OFFImporter::OFFImporter()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Destructor, private as well
+OFFImporter::~OFFImporter()
+{}
+
+// ------------------------------------------------------------------------------------------------
+// Returns whether the class can handle the format of the given file.
+bool OFFImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
+{
+    const std::string extension = GetExtension(pFile);
+
+    if (extension == "off")
+        return true;
+    else if (!extension.length() || checkSig)
+    {
+        if (!pIOHandler)return true;
+        const char* tokens[] = {"off"};
+        return SearchFileHeaderForToken(pIOHandler,pFile,tokens,1,3);
+    }
+    return false;
+}
+
+// ------------------------------------------------------------------------------------------------
+const aiImporterDesc* OFFImporter::GetInfo () const
+{
+    return &desc;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Imports the given file into the given scene structure.
+void OFFImporter::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() == NULL) {
+        throw DeadlyImportError( "Failed to open OFF file " + pFile + ".");
+    }
+
+    // allocate storage and copy the contents of the file to a memory buffer
+    std::vector<char> mBuffer2;
+    TextFileToBuffer(file.get(),mBuffer2);
+    const char* buffer = &mBuffer2[0];
+
+    char line[4096];
+    GetNextLine(buffer,line);
+    if ('O' == line[0]) {
+        GetNextLine(buffer,line); // skip the 'OFF' line
+    }
+
+    const char* sz = line; SkipSpaces(&sz);
+    const unsigned int numVertices = strtoul10(sz,&sz);SkipSpaces(&sz);
+    const unsigned int numFaces = strtoul10(sz,&sz);
+
+    if (!numVertices) {
+        throw DeadlyImportError("OFF: There are no valid vertices");
+    }
+    if (!numFaces) {
+        throw DeadlyImportError("OFF: There are no valid faces");
+    }
+
+    pScene->mNumMeshes = 1;
+    pScene->mMeshes = new aiMesh*[ pScene->mNumMeshes ];
+
+    aiMesh* mesh = new aiMesh();
+    pScene->mMeshes[0] = mesh;
+
+    mesh->mNumFaces = numFaces;
+    aiFace* faces = new aiFace [mesh->mNumFaces];
+    mesh->mFaces = faces;
+
+    std::vector<aiVector3D> tempPositions(numVertices);
+
+    // now read all vertex lines
+    for (unsigned int i = 0; i< numVertices;++i)
+    {
+        if(!GetNextLine(buffer,line))
+        {
+            DefaultLogger::get()->error("OFF: The number of verts in the header is incorrect");
+            break;
+        }
+        aiVector3D& v = tempPositions[i];
+
+        sz = line; SkipSpaces(&sz);
+        sz = fast_atoreal_move<ai_real>(sz,(ai_real&)v.x); SkipSpaces(&sz);
+        sz = fast_atoreal_move<ai_real>(sz,(ai_real&)v.y); SkipSpaces(&sz);
+        fast_atoreal_move<ai_real>(sz,(ai_real&)v.z);
+    }
+
+
+    // First find out how many vertices we'll need
+    const char* old = buffer;
+    for (unsigned int i = 0; i< mesh->mNumFaces;++i)
+    {
+        if(!GetNextLine(buffer,line))
+        {
+            DefaultLogger::get()->error("OFF: The number of faces in the header is incorrect");
+            break;
+        }
+        sz = line;SkipSpaces(&sz);
+        faces->mNumIndices = strtoul10(sz,&sz);
+        if(!(faces->mNumIndices) || faces->mNumIndices > 9)
+        {
+            DefaultLogger::get()->error("OFF: Faces with zero indices aren't allowed");
+            --mesh->mNumFaces;
+            continue;
+        }
+        mesh->mNumVertices += faces->mNumIndices;
+        ++faces;
+    }
+
+    if (!mesh->mNumVertices)
+        throw DeadlyImportError("OFF: There are no valid faces");
+
+    // allocate storage for the output vertices
+    std::vector<aiVector3D> verts;
+    verts.reserve(mesh->mNumVertices);
+
+    // second: now parse all face indices
+    buffer = old;
+    faces = mesh->mFaces;
+    for (unsigned int i = 0, p = 0; i< mesh->mNumFaces;)
+    {
+        if(!GetNextLine(buffer,line))break;
+
+        unsigned int idx;
+        sz = line;SkipSpaces(&sz);
+        idx = strtoul10(sz,&sz);
+        if(!(idx) || idx > 9)
+            continue;
+
+        faces->mIndices = new unsigned int [faces->mNumIndices];
+        for (unsigned int m = 0; m < faces->mNumIndices;++m)
+        {
+            SkipSpaces(&sz);
+            idx = strtoul10(sz,&sz);
+            if ((idx) >= numVertices)
+            {
+                DefaultLogger::get()->error("OFF: Vertex index is out of range");
+                idx = numVertices-1;
+            }
+            faces->mIndices[m] = p++;
+            verts.push_back(tempPositions[idx]);
+        }
+        ++i;
+        ++faces;
+    }
+
+    if (mesh->mNumVertices != verts.size()) {
+        throw DeadlyImportError("OFF: Vertex count mismatch");
+    }
+    mesh->mVertices = new aiVector3D[verts.size()];
+    memcpy(mesh->mVertices, &verts[0], verts.size() * sizeof(aiVector3D));
+    // generate the output node graph
+    pScene->mRootNode = new aiNode();
+    pScene->mRootNode->mName.Set("<OFFRoot>");
+    pScene->mRootNode->mNumMeshes = 1;
+    pScene->mRootNode->mMeshes = new unsigned int [pScene->mRootNode->mNumMeshes];
+    pScene->mRootNode->mMeshes[0] = 0;
+
+    // generate a default material
+    pScene->mNumMaterials = 1;
+    pScene->mMaterials = new aiMaterial*[pScene->mNumMaterials];
+    aiMaterial* pcMat = new aiMaterial();
+
+    aiColor4D clr( ai_real( 0.6 ), ai_real( 0.6 ), ai_real( 0.6 ), ai_real( 1.0 ) );
+    pcMat->AddProperty(&clr,1,AI_MATKEY_COLOR_DIFFUSE);
+    pScene->mMaterials[0] = pcMat;
+
+    const int twosided =1;
+    pcMat->AddProperty(&twosided,1,AI_MATKEY_TWOSIDED);
+}
+
+#endif // !! ASSIMP_BUILD_NO_OFF_IMPORTER