add assimp submodule

8 files changed, 1795 insertions, 0 deletions

diff --git a/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/DDLNode.h b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/DDLNode.h
new file mode 100644
index 0000000..593a5f1
--- /dev/null
+++ b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/DDLNode.h
@@ -0,0 +1,173 @@
+/*-----------------------------------------------------------------------------------------------
+The MIT License (MIT)
+
+Copyright (c) 2014-2020 Kim Kulling
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+-----------------------------------------------------------------------------------------------*/
+#pragma once
+
+#include <openddlparser/OpenDDLCommon.h>
+
+#include <string>
+#include <vector>
+
+BEGIN_ODDLPARSER_NS
+
+// Forward declarations
+class IOStreamBase;
+class Value;
+class OpenDDLParser;
+
+struct Identifier;
+struct Reference;
+struct Property;
+struct DataArrayList;
+
+///
+/// @ingroup    OpenDDLParser
+///	@brief      This class represents one single instance in the object tree of the parsed OpenDDL-file.
+///
+/// A DDLNode represents one leaf in the OpenDDL-node tree. It can have one parent node and multiple children.
+/// You can assign special properties to a single DDLNode instance.
+///	A node instance can store values via a linked list. You can get the first value from the DDLNode.
+/// A node can store data-array-lists and references as well.
+///
+class DLL_ODDLPARSER_EXPORT DDLNode {
+public:
+    friend class OpenDDLParser;
+
+    /// @brief  The child-node-list type.
+    typedef std::vector<DDLNode *> DllNodeList;
+
+    /// @brief  The child-node-list iterator.
+    typedef std::vector<DDLNode *>::iterator DDLNodeIt;
+
+public:
+    ///	@brief  The class destructor.
+    ~DDLNode();
+
+    ///	@brief  Will attach a parent node instance, an older one will be released.
+    /// @param  parent      [in] The parent node instance.
+    void attachParent(DDLNode *parent);
+
+    /// @brief  Will try to detach a parent node instance, if there is any.
+    void detachParent();
+
+    ///	@brief  Returns the assigned parent node instance, will return ddl_nullptr id no parent is assigned.
+    /// @return The parent node instance.
+    DDLNode *getParent() const;
+
+    ///	@brief  Returns the child node list.
+    /// @return The list of child nodes.
+    const DllNodeList &getChildNodeList() const;
+
+    /// Set the type of the DDLNode instance.
+    /// @param  type    [in] The type.
+    void setType(const std::string &type);
+
+    /// @brief  Returns the type of the DDLNode instance.
+    /// @return The type of the DDLNode instance.
+    const std::string &getType() const;
+
+    /// Set the name of the DDLNode instance.
+    /// @param  name        [in] The name.
+    void setName(const std::string &name);
+
+    /// @brief  Returns the name of the DDLNode instance.
+    /// @return The name of the DDLNode instance.
+    const std::string &getName() const;
+
+    /// @brief  Set a new property set.
+    ///	@param  prop        [in] The first element of the property set.
+    void setProperties(Property *prop);
+
+    ///	@brief  Returns the first element of the assigned property set.
+    ///	@return The first property of the assigned property set.
+    Property *getProperties() const;
+
+    ///	@brief  Looks for a given property.
+    /// @param  name        [in] The name for the property to look for.
+    /// @return true, if a corresponding property is assigned to the node, false if not.
+    bool hasProperty(const std::string &name);
+
+    ///	@brief  Will return true, if any properties are assigned to the node instance.
+    ///	@return True, if properties are assigned.
+    bool hasProperties() const;
+
+    ///	@brief  Search for a given property and returns it. Will return ddl_nullptr if no property was found.
+    /// @param  name        [in] The name for the property to look for.
+    /// @return The property or ddl_nullptr if no property was found.
+    Property *findPropertyByName(const std::string &name);
+
+    /// @brief  Set a new value set.
+    /// @param  val         [in] The first value instance of the value set.
+    void setValue(Value *val);
+
+    ///	@brief  Returns the first element of the assigned value set.
+    ///	@return The first property of the assigned value set.
+    Value *getValue() const;
+
+    /// @brief  Set a new DataArrayList.
+    /// @param  dtArrayList [in] The DataArrayList instance.
+    void setDataArrayList(DataArrayList *dtArrayList);
+
+    ///	@brief  Returns the DataArrayList.
+    ///	@return The DataArrayList.
+    DataArrayList *getDataArrayList() const;
+
+    /// @brief  Set a new Reference set.
+    /// @param  refs        [in] The first value instance of the Reference set.
+    void setReferences(Reference *refs);
+
+    ///	@brief  Returns the first element of the assigned Reference set.
+    ///	@return The first property of the assigned Reference set.
+    Reference *getReferences() const;
+
+    /// @brief  Will dump the node into the stream.
+    /// @param  stream      [in] The stream to write to.
+    void dump(IOStreamBase &stream);
+
+    ///	@brief  The creation method.
+    /// @param  type        [in] The DDLNode type.
+    ///	@param  name        [in] The name for the new DDLNode instance.
+    /// @param  parent      [in] The parent node instance or ddl_nullptr if no parent node is there.
+    /// @return The new created node instance.
+    static DDLNode *create(const std::string &type, const std::string &name, DDLNode *parent = nullptr);
+
+private:
+    DDLNode(const std::string &type, const std::string &name, size_t idx, DDLNode *parent = nullptr);
+    DDLNode();
+    DDLNode(const DDLNode &) ddl_no_copy;
+    DDLNode &operator=(const DDLNode &) ddl_no_copy;
+    static void releaseNodes();
+
+private:
+    std::string m_type;
+    std::string m_name;
+    DDLNode *m_parent;
+    std::vector<DDLNode *> m_children;
+    Property *m_properties;
+    Value *m_value;
+    DataArrayList *m_dtArrayList;
+    Reference *m_references;
+    size_t m_idx;
+    static DllNodeList s_allocatedNodes;
+};
+
+END_ODDLPARSER_NS
diff --git a/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLCommon.h b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLCommon.h
new file mode 100644
index 0000000..6ccc83b
--- /dev/null
+++ b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLCommon.h
@@ -0,0 +1,245 @@
+/*-----------------------------------------------------------------------------------------------
+The MIT License (MIT)
+
+Copyright (c) 2014-2020 Kim Kulling
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+-----------------------------------------------------------------------------------------------*/
+#pragma once
+
+#include <cstddef>
+#include <string>
+#include <vector>
+
+#include <stdio.h>
+#include <string.h>
+#ifndef _WIN32
+#include <inttypes.h>
+#endif
+
+#if defined(_MSC_VER) && !defined(OPENDDL_STATIC_LIBARY)
+
+#define TAG_DLL_EXPORT __declspec(dllexport)
+#define TAG_DLL_IMPORT __declspec(dllimport)
+#ifdef OPENDDLPARSER_BUILD
+#define DLL_ODDLPARSER_EXPORT TAG_DLL_EXPORT
+#else
+#define DLL_ODDLPARSER_EXPORT TAG_DLL_IMPORT
+#endif // OPENDDLPARSER_BUILD
+#pragma warning(disable : 4251)
+#else
+#define DLL_ODDLPARSER_EXPORT
+#endif // _WIN32
+
+// Namespace declarations, override this to avoid any conflicts
+#define BEGIN_ODDLPARSER_NS namespace ODDLParser {
+#define END_ODDLPARSER_NS } // namespace ODDLParser
+#define USE_ODDLPARSER_NS using namespace ODDLParser;
+
+BEGIN_ODDLPARSER_NS
+
+// We will use C++11 optional
+#ifndef OPENDDL_NO_USE_CPP11
+// All C++11 constructs
+#define nullptr nullptr
+#define ddl_override override
+#define ddl_final final
+#define ddl_no_copy = delete
+#else
+// Fall-back for older compilers
+#define nullptr NULL
+#define ddl_override
+#define ddl_final
+#define ddl_no_copy
+#endif // OPENDDL_NO_USE_CPP11
+
+// Forward declarations
+class DDLNode;
+class Value;
+
+struct Name;
+struct Identifier;
+struct Reference;
+struct Property;
+struct DataArrayList;
+
+// Platform-specific typedefs
+#ifdef _WIN32
+typedef signed __int64 int64_impl;
+typedef unsigned __int64 uint64_impl;
+#else
+typedef int64_t int64_impl;
+typedef uint64_t uint64_impl;
+#endif
+
+// OpenDDL-specific data typedefs
+using int8 = signed char; ///< Signed integer, 1 byte
+using int16 = signed short; ///< Signed integer, 2 byte
+using int32 = signed int; ///< Signed integer, 4 byte
+using int64 = int64_impl; ///< Signed integer, 8 byte
+using uint8 = unsigned char; ///< Unsigned integer, 1 byte
+using uint16 = unsigned short ; ///< Unsigned integer, 2 byte
+using uint32 = unsigned int; ///< Unsigned integer, 4 byte
+using uint64 = uint64_impl ; ///< Unsigned integer, 8 byte
+
+///	@brief  Stores a text.
+///
+/// A text is stored in a simple character buffer. Texts buffer can be
+/// greater than the number of stored characters in them.
+struct DLL_ODDLPARSER_EXPORT Text {
+    size_t m_capacity; ///< The capacity of the text.
+    size_t m_len; ///< The length of the text.
+    char *m_buffer; ///< The buffer with the text.
+
+    ///	@brief  The constructor with a given text buffer.
+    /// @param  buffer      [in] The buffer.
+    /// @param  numChars    [in] The number of characters in the buffer.
+    Text(const char *buffer, size_t numChars);
+
+    ///	@brief  The destructor.
+    ~Text();
+
+    ///	@brief  Clears the text.
+    void clear();
+
+    ///	@brief  Set a new text.
+    /// @param  buffer      [in] The buffer.
+    /// @param  numChars    [in] The number of characters in the buffer.
+    void set(const char *buffer, size_t numChars);
+
+    ///	@brief  The compare operator for std::strings.
+    bool operator==(const std::string &name) const;
+
+    ///	@brief  The compare operator for Texts.
+    bool operator==(const Text &rhs) const;
+
+private:
+    Text(const Text &) ddl_no_copy;
+    Text &operator=(const Text &) ddl_no_copy;
+};
+
+///	@brief  Description of the type of a name.
+enum NameType {
+    GlobalName, ///< Name is global.
+    LocalName ///< Name is local.
+};
+
+///	@brief  Stores an OpenDDL-specific name
+struct DLL_ODDLPARSER_EXPORT Name {
+    NameType m_type; ///< The type of the name ( @see NameType ).
+    Text *m_id; ///< The id.
+
+    ///	@brief  The constructor with the type and the id.
+    ///	@param  type    [in] The name type.
+    ///	@param  id      [in] The id.
+    Name(NameType type, Text *id);
+    Name(const Name &name);
+    ///	@brief  The destructor.
+    ~Name();
+
+private:
+    Name &operator=(const Name &) ddl_no_copy;
+};
+
+///	@brief  Stores a bundle of references.
+struct DLL_ODDLPARSER_EXPORT Reference {
+    size_t m_numRefs; ///< The number of stored references.
+    Name **m_referencedName; ///< The reference names.
+
+    ///	@brief  The default constructor.
+    Reference();
+    Reference(const Reference &ref);
+    ///	@brief  The constructor with an array of ref names.
+    /// @param  numrefs     [in] The number of ref names.
+    /// @param  names       [in] The ref names.
+    Reference(size_t numrefs, Name **names);
+
+    ///	@brief  The destructor.
+    ~Reference();
+
+    /// @brief  Returns the size in bytes to store one deep reference copy.
+    /// @return The size on bytes.
+    size_t sizeInBytes();
+
+private:
+    Reference &operator=(const Reference &) ddl_no_copy;
+};
+
+///	@brief  Stores a property list.
+struct DLL_ODDLPARSER_EXPORT Property {
+    Text *m_key; ///< The identifier / key of the property.
+    Value *m_value; ///< The value assigned to its key / id ( ddl_nullptr if none ).
+    Reference *m_ref; ///< References assigned to its key / id ( ddl_nullptr if none ).
+    Property *m_next; ///< The next property ( ddl_nullptr if none ).
+
+    ///	@brief  The default constructor.
+    Property();
+
+    ///	@brief  The constructor for initialization.
+    /// @param  id      [in] The identifier
+    Property(Text *id);
+
+    ///	@brief  The destructor.
+    ~Property();
+
+private:
+    Property(const Property &) ddl_no_copy;
+    Property &operator=(const Property &) ddl_no_copy;
+};
+
+///	@brief  Stores a data array list.
+struct DLL_ODDLPARSER_EXPORT DataArrayList {
+    size_t m_numItems; ///< The number of items in the list.
+    Value *m_dataList; ///< The data list ( a Value ).
+    DataArrayList *m_next; ///< The next data array list ( ddl_nullptr if last ).
+    Reference *m_refs;
+    size_t m_numRefs;
+
+    ///	@brief  The default constructor for initialization.
+    DataArrayList();
+
+    ///	@brief  The destructor.
+    ~DataArrayList();
+
+    /// @brief  Gets the length of the array
+    size_t size();
+
+private:
+    DataArrayList(const DataArrayList &) ddl_no_copy;
+    DataArrayList &operator=(const DataArrayList &) ddl_no_copy;
+};
+
+///	@brief  Stores the context of a parsed OpenDDL declaration.
+struct DLL_ODDLPARSER_EXPORT Context {
+    DDLNode *m_root; ///< The root node of the OpenDDL node tree.
+
+    ///	@brief  Constructor for initialization.
+    Context();
+
+    ///	@brief  Destructor.
+    ~Context();
+
+    ///	@brief  Clears the whole node tree.
+    void clear();
+
+private:
+    Context(const Context &) ddl_no_copy;
+    Context &operator=(const Context &) ddl_no_copy;
+};
+
+END_ODDLPARSER_NS
diff --git a/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLExport.h b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLExport.h
new file mode 100644
index 0000000..9452535
--- /dev/null
+++ b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLExport.h
@@ -0,0 +1,80 @@
+/*-----------------------------------------------------------------------------------------------
+The MIT License (MIT)
+
+Copyright (c) 2014-2020 Kim Kulling
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+-----------------------------------------------------------------------------------------------*/
+#pragma once
+
+#include <openddlparser/OpenDDLCommon.h>
+#include <openddlparser/OpenDDLStream.h>
+#include <openddlparser/Value.h>
+
+BEGIN_ODDLPARSER_NS
+
+// Forward declarations
+class IOStreamBase;
+
+//-------------------------------------------------------------------------------------------------
+///
+/// @ingroup    OpenDDLParser
+///	@brief      This class represents the OpenDDLExporter.
+///
+//-------------------------------------------------------------------------------------------------
+class DLL_ODDLPARSER_EXPORT OpenDDLExport {
+public:
+    ///	@brief  The class constructor
+    OpenDDLExport(IOStreamBase *stream = nullptr);
+
+    ///	@brief  The class destructor.
+    ~OpenDDLExport();
+
+    ///	@brief  Export the data of a parser context.
+    /// @param  ctx         [in] Pointer to the context.
+    /// @param  filename    [in] The filename for the export.
+    /// @return True in case of success, false in case of an error.
+    bool exportContext(Context *ctx, const std::string &filename);
+
+    ///	@brief  Handles a node export.
+    /// @param  node        [in] The node to handle with.
+    /// @return True in case of success, false in case of an error.
+    bool handleNode(DDLNode *node);
+
+    ///	@brief  Writes the statement to the stream.
+    /// @param  statement   [in]  The content to write.
+    /// @return True in case of success, false in case of an error.
+    bool writeToStream(const std::string &statement);
+
+protected:
+    bool writeNode(DDLNode *node, std::string &statement);
+    bool writeNodeHeader(DDLNode *node, std::string &statement);
+    bool writeProperties(DDLNode *node, std::string &statement);
+    bool writeValueType(Value::ValueType type, size_t numItems, std::string &statement);
+    bool writeValue(Value *val, std::string &statement);
+    bool writeValueArray(DataArrayList *al, std::string &statement);
+
+private:
+    OpenDDLExport(const OpenDDLExport &) ddl_no_copy;
+    OpenDDLExport &operator=(const OpenDDLExport &) ddl_no_copy;
+
+private:
+    IOStreamBase *m_stream;
+};
+
+END_ODDLPARSER_NS
diff --git a/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLParser.h b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLParser.h
new file mode 100644
index 0000000..3fbb4b6
--- /dev/null
+++ b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLParser.h
@@ -0,0 +1,206 @@
+/*-----------------------------------------------------------------------------------------------
+The MIT License (MIT)
+
+Copyright (c) 2014-2020 Kim Kulling
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+-----------------------------------------------------------------------------------------------*/
+#pragma once
+
+#include <openddlparser/DDLNode.h>
+#include <openddlparser/OpenDDLCommon.h>
+#include <openddlparser/OpenDDLParserUtils.h>
+#include <openddlparser/Value.h>
+
+#include <string>
+#include <vector>
+#include <functional>
+
+BEGIN_ODDLPARSER_NS
+
+class DDLNode;
+class Value;
+
+struct Identifier;
+struct Reference;
+struct Property;
+
+template <class T>
+inline bool isEmbeddedCommentOpenTag(T *in, T *end) {
+    if (in == '/' && in + 1 == '*') {
+        return true;
+    }
+
+    return false;
+}
+
+///	@brief  Utility function to search for the next token or the end of the buffer.
+/// @param  in      [in] The start position in the buffer.
+/// @param  end     [in] The end position in the buffer.
+///	@return Pointer showing to the next token or the end of the buffer.
+///	@detail Will not increase buffer when already a valid buffer was found.
+template <class T>
+inline T *lookForNextToken(T *in, T *end) {
+    while ((in != end) && (isSpace(*in) || isNewLine(*in) || ',' == *in)) {
+        ++in;
+    }
+    return in;
+}
+
+///	@brief  Utility function to go for the next token or the end of the buffer.
+/// @param  in      [in] The start position in the buffer.
+/// @param  end     [in] The end position in the buffer.
+///	@return Pointer showing to the next token or the end of the buffer.
+///	@detail Will  increase buffer by a minimum of one.
+template <class T>
+inline T *getNextToken(T *in, T *end) {
+    T *tmp(in);
+    in = lookForNextToken(in, end);
+    if (tmp == in) {
+        ++in;
+    }
+    return in;
+}
+
+///	@brief  Defines the log severity.
+enum LogSeverity {
+    ddl_debug_msg = 0, ///< Debug message, for debugging
+    ddl_info_msg, ///< Info messages, normal mode
+    ddl_warn_msg, ///< Parser warnings
+    ddl_error_msg ///< Parser errors
+};
+
+DLL_ODDLPARSER_EXPORT const char *getTypeToken(Value::ValueType type);
+
+//-------------------------------------------------------------------------------------------------
+///	@class		OpenDDLParser
+///	@ingroup	OpenDDLParser
+
+///
+///	@brief  This is the main API for the OpenDDL-parser.
+///
+/// Use instances of this class to manage the parsing and handling of your parser contexts.
+//-------------------------------------------------------------------------------------------------
+class DLL_ODDLPARSER_EXPORT OpenDDLParser {
+public:
+    ///	@brief  The log callback function.
+    typedef std::function<void (LogSeverity severity, const std::string &msg)> logCallback;
+
+public:
+    ///	@brief  The default class constructor.
+    OpenDDLParser();
+
+    ///	@brief  The class constructor.
+    ///	@param  buffer      [in] The buffer
+    ///	@param  len         [in] Size of the buffer
+    OpenDDLParser(const char *buffer, size_t len);
+
+    ///	@brief  The class destructor.
+    ~OpenDDLParser();
+
+    ///	@brief  Setter for an own log callback function.
+    /// @param  callback    [in] The own callback.
+    void setLogCallback(logCallback callback);
+
+    ///	@brief  Getter for the log callback.
+    /// @return The current log callback.
+    logCallback getLogCallback() const;
+
+    /// @brief  A default log callback that writes to a FILE.
+    /// @param  destination [in] Output stream. NULL will use stderr.
+    /// @return A callback that you can pass to setLogCallback.
+    static logCallback StdLogCallback(FILE *destination = nullptr);
+
+    ///	@brief  Assigns a new buffer to parse.
+    ///	@param  buffer      [in] The buffer
+    ///	@param  len         [in] Size of the buffer
+    void setBuffer(const char *buffer, size_t len);
+
+    ///	@brief  Assigns a new buffer to parse.
+    /// @param  buffer      [in] The buffer as a std::vector.
+    void setBuffer(const std::vector<char> &buffer);
+
+    ///	@brief  Returns the buffer pointer.
+    /// @return The buffer pointer.
+    const char *getBuffer() const;
+
+    /// @brief  Returns the size of the buffer.
+    /// @return The buffer size.
+    size_t getBufferSize() const;
+
+    ///	@brief  Clears all parser data, including buffer and active context.
+    void clear();
+
+    bool validate();
+
+    ///	@brief  Starts the parsing of the OpenDDL-file.
+    /// @return True in case of success, false in case of an error.
+    /// @remark In case of errors check log.
+    bool parse();
+
+    
+    bool exportContext(Context *ctx, const std::string &filename);
+
+    ///	@brief  Returns the root node.
+    /// @return The root node.
+    DDLNode *getRoot() const;
+
+    ///	@brief  Returns the parser context, only available in case of a succeeded parsing.
+    /// @return Pointer to the active context or ddl_nullptr.
+    Context *getContext() const;
+
+public: // parser helpers
+    char *parseNextNode(char *current, char *end);
+    char *parseHeader(char *in, char *end);
+    char *parseStructure(char *in, char *end);
+    char *parseStructureBody(char *in, char *end, bool &error);
+    void pushNode(DDLNode *node);
+    DDLNode *popNode();
+    DDLNode *top();
+    static void normalizeBuffer(std::vector<char> &buffer);
+    static char *parseName(char *in, char *end, Name **name);
+    static char *parseIdentifier(char *in, char *end, Text **id);
+    static char *parsePrimitiveDataType(char *in, char *end, Value::ValueType &type, size_t &len);
+    static char *parseReference(char *in, char *end, std::vector<Name *> &names);
+    static char *parseBooleanLiteral(char *in, char *end, Value **boolean);
+    static char *parseIntegerLiteral(char *in, char *end, Value **integer, Value::ValueType integerType = Value::ValueType::ddl_int32);
+    static char *parseFloatingLiteral(char *in, char *end, Value **floating, Value::ValueType floatType = Value::ValueType::ddl_float);
+    static char *parseStringLiteral(char *in, char *end, Value **stringData);
+    static char *parseHexaLiteral(char *in, char *end, Value **data);
+    static char *parseProperty(char *in, char *end, Property **prop);
+    static char *parseDataList(char *in, char *end, Value::ValueType type, Value **data, size_t &numValues, Reference **refs, size_t &numRefs);
+    static char *parseDataArrayList(char *in, char *end, Value::ValueType type, DataArrayList **dataList);
+    static const char *getVersion();
+
+private:
+    OpenDDLParser(const OpenDDLParser &) ddl_no_copy;
+    OpenDDLParser &operator=(const OpenDDLParser &) ddl_no_copy;
+
+private:
+    logCallback m_logCallback;
+    std::vector<char> m_buffer;
+
+    typedef std::vector<DDLNode *> DDLNodeStack;
+    DDLNodeStack m_stack;
+    Context *m_context;
+
+    ///	@brief  Callback for StdLogCallback(). Not meant to be called directly.
+    static void logToStream (FILE *, LogSeverity, const std::string &);
+};
+
+END_ODDLPARSER_NS
diff --git a/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLParserUtils.h b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLParserUtils.h
new file mode 100644
index 0000000..42ad675
--- /dev/null
+++ b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLParserUtils.h
@@ -0,0 +1,503 @@
+/*-----------------------------------------------------------------------------------------------
+The MIT License (MIT)
+
+Copyright (c) 2014-2020 Kim Kulling
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+-----------------------------------------------------------------------------------------------*/
+#pragma once
+
+#include <openddlparser/OpenDDLCommon.h>
+
+BEGIN_ODDLPARSER_NS
+
+template <class T>
+inline bool isUpperCase(T in) {
+    return (in >= 'A' && in <= 'Z');
+}
+
+template <class T>
+inline bool isLowerCase(T in) {
+    return (in >= 'a' && in <= 'z');
+}
+
+template <class T>
+inline bool isSpace(const T in) {
+    return (' ' == in || '\t' == in);
+}
+
+template <class T>
+inline bool isNewLine(const T in) {
+    return ('\n' == in || ('\r' == in));
+}
+
+template <class T>
+inline bool isSeparator(T in) {
+    if (isSpace(in) || ',' == in || '{' == in || '}' == in || '[' == in || '(' == in || ')' == in) {
+        return true;
+    }
+    return false;
+}
+
+static const unsigned char chartype_table[256] = {
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0, // 0-15
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0, // 16-31
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0, // 32-47
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    1,
+    0,
+    0,
+    0,
+    0,
+    0, // 48-63
+
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0, // 64-79
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0, // 80-95
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0, // 96-111
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0, // 112-127
+
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0, // > 127
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+    0,
+};
+
+template <class T>
+inline bool isNumeric(const T in) {
+    size_t idx = static_cast<size_t>(in);
+    return idx < sizeof(chartype_table) && (chartype_table[idx] == 1);
+}
+
+template <class T>
+inline bool isNotEndOfToken(T *in, T *end) {
+    return ('}' != *in && ',' != *in && !isSpace(*in) && ')' != *in && in != end);
+}
+
+template <class T>
+inline bool isInteger(T *in, T *end) {
+    if (in != end) {
+        if (*in == '-') {
+            ++in;
+        }
+    }
+
+    bool result(false);
+    while (isNotEndOfToken(in, end)) {
+        result = isNumeric(*in);
+        if (!result) {
+            break;
+        }
+        ++in;
+    }
+
+    return result;
+}
+
+template <class T>
+inline bool isFloat(T *in, T *end) {
+    if (in != end) {
+        if (*in == '-') {
+            ++in;
+        }
+    }
+
+    // check for <1>.0f
+    bool result(false);
+    while (isNotEndOfToken(in, end)) {
+        if (*in == '.') {
+            result = true;
+            break;
+        }
+        result = isNumeric(*in);
+        if (!result) {
+            return false;
+        }
+        ++in;
+    }
+
+    // check for 1<.>0f
+    if (*in == '.') {
+        ++in;
+    } else {
+        return false;
+    }
+
+    // check for 1.<0>f
+    while (isNotEndOfToken(in, end)) {
+        result = isNumeric(*in);
+        if (!result) {
+            return false;
+        }
+        ++in;
+    }
+
+    return result;
+}
+
+template <class T>
+inline bool isCharacter(const T in) {
+    return ((in >= 'a' && in <= 'z') || (in >= 'A' && in <= 'Z'));
+}
+
+template <class T>
+inline bool isStringLiteral(const T in) {
+    return (in == '\"');
+}
+
+template <class T>
+inline bool isHexLiteral(T *in, T *end) {
+    if (*in == '0') {
+        if (in + 1 != end) {
+            if (*(in + 1) == 'x' || *(in + 1) == 'X') {
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+template <class T>
+inline bool isReference(T *in, T *end) {
+    if (*in == 'r') {
+        if (*(in + 1) == 'e') {
+            if (*(in + 2) == 'f') {
+                if ((in + 2) != end) {
+                    return true;
+                }
+            }
+        }
+    }
+
+    return false;
+}
+
+template <class T>
+inline bool isEndofLine(const T in) {
+    return ('\n' == in);
+}
+
+template <class T>
+inline static T *getNextSeparator(T *in, T *end) {
+    while (!isSeparator(*in) || in == end) {
+        ++in;
+    }
+    return in;
+}
+
+static const int ErrorHex2Decimal = 9999999;
+
+inline int hex2Decimal(char in) {
+    if (isNumeric(in)) {
+        return (in - 48);
+    }
+
+    char hexCodeLower('a'), hexCodeUpper('A');
+    for (int i = 0; i < 16; i++) {
+        if (in == hexCodeLower + i || in == hexCodeUpper + i) {
+            return (i + 10);
+        }
+    }
+
+    return ErrorHex2Decimal;
+}
+
+template <class T>
+inline bool isComment(T *in, T *end) {
+    if (*in == '/') {
+        if (in + 1 != end) {
+            if (*(in + 1) == '/') {
+                char *drive((in + 2));
+                if ((isUpperCase<T>(*drive) || isLowerCase<T>(*drive)) && *(drive + 1) == '/') {
+                    return false;
+                } else {
+                    return true;
+                }
+            }
+        }
+    }
+
+    return false;
+}
+
+template <class T>
+inline bool isCommentOpenTag(T *in, T *end) {
+    if (*in == '/') {
+        if (in + 1 != end) {
+            if (*(in + 1) == '*') {
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+template <class T>
+inline bool isCommentCloseTag(T *in, T *end) {
+    if (*in == '*') {
+        if (in + 1 != end) {
+            if (*(in + 1) == '/') {
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+END_ODDLPARSER_NS
diff --git a/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLStream.h b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLStream.h
new file mode 100644
index 0000000..93bde5f
--- /dev/null
+++ b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/OpenDDLStream.h
@@ -0,0 +1,89 @@
+/*-----------------------------------------------------------------------------------------------
+The MIT License (MIT)
+
+Copyright (c) 2014-2020 Kim Kulling
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+-----------------------------------------------------------------------------------------------*/
+#pragma once
+
+#include <openddlparser/OpenDDLCommon.h>
+
+BEGIN_ODDLPARSER_NS
+
+//-------------------------------------------------------------------------------------------------
+/// @ingroup    IOStreamBase
+///	@brief      This class represents the stream to write out.
+//-------------------------------------------------------------------------------------------------
+class DLL_ODDLPARSER_EXPORT StreamFormatterBase {
+public:
+    /// @brief  The class constructor.
+    StreamFormatterBase();
+
+    /// @brief  The class destructor, virtual.
+    virtual ~StreamFormatterBase();
+
+    /// @brief  Will format the string and return the new formatted result.
+    /// @param  statement   [in] The string to reformat.
+    /// @return The reformatted result.
+    virtual std::string format(const std::string &statement);
+};
+
+//-------------------------------------------------------------------------------------------------
+/// @ingroup    IOStreamBase
+///	@brief      This class represents the stream to write out.
+//-------------------------------------------------------------------------------------------------
+class DLL_ODDLPARSER_EXPORT IOStreamBase {
+public:
+    /// @brief  The class constructor with the formatter.
+    /// @param  formatter   [in] The formatter to use.
+    explicit IOStreamBase(StreamFormatterBase *formatter = nullptr);
+
+    /// @brief  The class destructor, virtual.
+    virtual ~IOStreamBase();
+
+    /// @brief  Will open the stream.
+    /// @param  name        [in] The name for the stream.
+    /// @return true, if the stream was opened successfully, false if not.
+    virtual bool open(const std::string &name);
+
+    /// @brief  Will close the stream.
+    /// @return true, if the stream was closed successfully, false if not.
+    virtual bool close();
+
+    /// @brief  Returns true, if the stream is open.
+    /// @return true, if the stream is open, false if not.
+    virtual bool isOpen() const;
+
+    /// @brief  Will read a string from the stream.
+    /// @param  sizeToRead  [in] The size to read in bytes.
+    /// @param  statement   [out] The read statements.
+    /// @return The bytes read from the stream.
+    virtual size_t read(size_t sizeToRead, std::string &statement);
+
+    /// @brief  Will write a string into the stream.
+    /// @param  statement  [in] The string to write.
+    /// @return The bytes written into the stream.
+    virtual size_t write(const std::string &statement);
+
+private:
+    StreamFormatterBase *m_formatter;
+    FILE *m_file;
+};
+
+END_ODDLPARSER_NS
diff --git a/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/TPoolAllocator.h b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/TPoolAllocator.h
new file mode 100644
index 0000000..6076c73
--- /dev/null
+++ b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/TPoolAllocator.h
@@ -0,0 +1,226 @@
+/*-----------------------------------------------------------------------------------------------
+The MIT License (MIT)
+
+Copyright (c) 2014-2019 Kim Kulling
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+-----------------------------------------------------------------------------------------------*/
+#pragma once
+
+#include <openddlparser/OpenDDLCommon.h>
+#include <string>
+
+BEGIN_ODDLPARSER_NS
+
+//-------------------------------------------------------------------------------------------------
+///	@class		TPoolAllocator
+///	@ingroup	CPPCore
+///
+///	@brief  This class implements a simple pool-based allocation scheme.
+/// Initially you have to define its size. Each allocation will be done from this initially created
+/// pool. You have to release all pooled instances after the usage.
+/// This allocation scheme is fast and does no call any new-calls during the lifetime of the
+/// allocator.
+//-------------------------------------------------------------------------------------------------
+template <class T>
+class TPoolAllocator {
+public:
+    TPoolAllocator();
+    TPoolAllocator(size_t numItems);
+    ~TPoolAllocator();
+    T *alloc();
+    void release();
+    void reserve(size_t size);
+    void clear();
+    size_t capacity() const;
+    size_t reservedMem() const;
+    size_t freeMem() const;
+    void dumpAllocations(std::string &allocs);
+    void resize(size_t growSize);
+
+    CPPCORE_NONE_COPYING(TPoolAllocator)
+
+private:
+    struct Pool {
+        size_t m_poolsize;
+        T *m_pool;
+        size_t m_currentIdx;
+        Pool *m_next;
+
+        Pool() :
+                m_poolsize(0u), m_pool(nullptr), m_currentIdx(0u), m_next(nullptr) {
+            // empty
+        }
+
+        Pool(size_t numItems, Pool *prev) :
+                m_poolsize(numItems), m_pool(nullptr), m_currentIdx(0u), m_next(prev) {
+            m_pool = new T[m_poolsize];
+        }
+
+        ~Pool() {
+            delete[] m_pool;
+            m_pool = nullptr;
+        }
+
+        CPPCORE_NONE_COPYING(Pool)
+    };
+
+    Pool *getFreePool() {
+        Pool *current(m_freeList);
+        if (nullptr != m_freeList) {
+            m_freeList = m_freeList->m_next;
+        }
+        return current;
+    }
+
+    Pool *m_first;
+    Pool *m_current;
+    Pool *m_freeList;
+    size_t m_capacity;
+};
+
+template <class T>
+inline TPoolAllocator<T>::TPoolAllocator() :
+        m_first(nullptr), m_current(nullptr), m_freeList(nullptr), m_capacity(0L) {
+    // empty
+}
+
+template <class T>
+inline TPoolAllocator<T>::TPoolAllocator(size_t numItems) :
+        m_first(nullptr), m_current(nullptr), m_freeList(nullptr), m_capacity(0L) {
+    m_first = new Pool(numItems);
+    m_capacity += numItems;
+    m_current = m_first;
+}
+
+template <class T>
+inline TPoolAllocator<T>::~TPoolAllocator() {
+    clear();
+}
+
+template <class T>
+inline T *TPoolAllocator<T>::alloc() {
+    if (nullptr == m_current) {
+        return nullptr;
+    }
+
+    if (m_current->m_currentIdx == m_current->m_poolsize) {
+        resize(m_current->m_poolsize);
+    }
+
+    T *ptr(&m_current->m_pool[m_current->m_currentIdx]);
+    m_current->m_currentIdx++;
+
+    return ptr;
+}
+
+template <class T>
+inline void TPoolAllocator<T>::release() {
+    if (nullptr == m_current) {
+        return;
+    }
+
+    Pool *current(m_first);
+    while (nullptr != current) {
+        current->m_currentIdx = 0;
+        current = current->m_next;
+    }
+    m_freeList = m_first->m_next;
+    m_current = m_first;
+}
+
+template <class T>
+inline void TPoolAllocator<T>::reserve(size_t size) {
+    clear();
+
+    m_first = new Pool(size, nullptr);
+    m_current = m_first;
+
+    m_current->m_pool = new T[size];
+    m_current->m_poolsize = size;
+
+    m_capacity = size;
+}
+
+template <class T>
+inline void TPoolAllocator<T>::clear() {
+    if (nullptr == m_current) {
+        return;
+    }
+
+    Pool *next(m_first);
+    while (nullptr != next) {
+        Pool *current = next;
+        next = current->m_next;
+        delete current;
+    }
+    m_current = nullptr;
+    m_freeList = nullptr;
+}
+
+template <class T>
+inline size_t TPoolAllocator<T>::capacity() const {
+    return m_capacity;
+}
+
+template <class T>
+inline size_t TPoolAllocator<T>::reservedMem() const {
+    return m_capacity * sizeof(T);
+}
+
+template <class T>
+inline size_t TPoolAllocator<T>::freeMem() const {
+    if (nullptr == m_current) {
+        return 0L;
+    }
+
+    return (m_current->m_poolsize - m_current->m_currentIdx);
+}
+
+template <class T>
+inline void TPoolAllocator<T>::dumpAllocations(std::string &allocs) {
+    allocs.clear();
+    allocs += "Number allocations = ";
+    allocs += std::to_string(m_current->m_currentIdx);
+    allocs += "\n";
+}
+
+template <class T>
+inline void TPoolAllocator<T>::resize(size_t growSize) {
+    if (nullptr != m_current) {
+        if (growSize < m_current->m_poolsize) {
+            return;
+        }
+    }
+
+    if (nullptr == m_first) {
+        m_first = new Pool(growSize, nullptr);
+        m_current = m_first;
+        m_capacity += m_current->m_poolsize;
+    } else {
+        Pool *pool = getFreePool();
+        if (nullptr == pool) {
+            pool = new Pool(growSize, nullptr);
+            m_capacity += growSize;
+        }
+        m_current->m_next = pool;
+        m_current = m_current->m_next;
+    }
+}
+
+END_ODDLPARSER_NS
\ No newline at end of file
diff --git a/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/Value.h b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/Value.h
new file mode 100644
index 0000000..75af781
--- /dev/null
+++ b/src/mesh/assimp-master/contrib/openddlparser/include/openddlparser/Value.h
@@ -0,0 +1,273 @@
+/*-----------------------------------------------------------------------------------------------
+The MIT License (MIT)
+
+Copyright (c) 2014-2020 Kim Kulling
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+-----------------------------------------------------------------------------------------------*/
+#pragma once
+
+#include <openddlparser/OpenDDLCommon.h>
+
+#include <string>
+
+BEGIN_ODDLPARSER_NS
+
+// Forward declarations
+struct ValueAllocator;
+
+class IOStreamBase;
+
+///------------------------------------------------------------------------------------------------
+///	@brief  This class implements a value.
+///
+///	Values are used to store data types like boolean, integer, floats, double and many mode. To get
+///	an overview please check the enum VylueType ( @see Value::ValueType ).
+/// Values can be single items or lists of items. They are implemented as linked lists.
+///------------------------------------------------------------------------------------------------
+class DLL_ODDLPARSER_EXPORT Value {
+    friend struct ValueAllocator;
+
+public:
+    ///	@brief  This class implements an iterator through a Value list.
+    ///
+    /// When getting a new value you need to know how to iterate through it. The Value::Iterator
+    /// will help you here:
+    ///	@code
+    /// Value *val = node->getValue();
+    /// Value::Iterator it( val );
+    /// while( it.hasNext() ) {
+    ///     Value v( it.getNext );
+    /// }
+    /// @endcode
+    class DLL_ODDLPARSER_EXPORT Iterator {
+    public:
+        ///	@brief  The default class constructor.
+        Iterator();
+
+        ///	@brief  The class constructor with the start value.
+        /// @param  start   [in] The first value for iteration,
+        Iterator( Value *start );
+
+        Iterator( const Iterator &rhs );
+
+        ///	@brief  The class destructor.
+        ~Iterator();
+
+        ///	@brief  Will return true, if another value is in the list.
+        /// @return true if another value is there.
+        bool hasNext() const;
+
+        ///	@brief  Returns the next item and moves the iterator to it.
+        ///	@return The next value, is ddl_nullptr in case of being the last item.
+        Value *getNext();
+
+        ///	@brief  The post-increment operator.
+        const Iterator operator++( int );
+
+        ///	@brief  The pre-increment operator.
+        Iterator &operator++( );
+
+        ///	@brief  The compare operator.
+        /// @param  rhs [in] The instance to compare.
+        /// @return true if equal.
+        bool operator == ( const Iterator &rhs ) const;
+
+        /// @brief  The * operator.
+        /// @return The instance or ddl_nullptr if end of list is reached.
+        Value *operator->( ) const;
+
+    private:
+        Value *m_start;
+        Value *m_current;
+
+    private:
+        Iterator &operator = ( const Iterator & );
+    };
+
+    ///	@brief  This enum describes the data type stored in the value.
+    enum class ValueType {
+        ddl_none = -1,          ///< Nothing specified
+        ddl_bool = 0,           ///< A boolean type
+        ddl_int8,               ///< Integer type, 8 bytes
+        ddl_int16,              ///< Integer type, 16 bytes
+        ddl_int32,              ///< Integer type, 32 bytes
+        ddl_int64,              ///< Integer type, 64 bytes
+        ddl_unsigned_int8,      ///< Unsigned integer type, 8 bytes
+        ddl_unsigned_int16,     ///< Unsigned integer type, 16 bytes
+        ddl_unsigned_int32,     ///< Unsigned integer type, 32 bytes
+        ddl_unsigned_int64,     ///< Unsigned integer type, 64 bytes
+        ddl_half,               ///< Half data type.
+        ddl_float,              ///< float data type
+        ddl_double,             ///< Double data type.
+        ddl_string,             ///< String data type.
+        ddl_ref,                ///< Reference, used to define references to other data definitions.
+        ddl_types_max           ///< Upper limit.
+    };
+
+    ///	@brief  The class constructor.
+    /// @param  type        [in] The value type.
+    Value( ValueType type );
+
+    ///	@brief  The class destructor.
+    ~Value();
+
+    ///	@brief  Assigns a boolean to the value.
+    /// @param  value       [in9 The value.
+    void setBool( bool value );
+
+    ///	@brief  Returns the boolean value.
+    /// @return The boolean value.
+    bool getBool();
+
+    ///	@brief  Assigns a int8 to the value.
+    /// @param  value       [in] The value.
+    void setInt8( int8 value );
+
+    ///	@brief  Returns the int8 value.
+    /// @return The int8 value.
+    int8 getInt8();
+
+    ///	@brief  Assigns a int16 to the value.
+    /// @param  value       [in] The value.
+    void setInt16( int16 value );
+
+    ///	@brief  Returns the int16 value.
+    /// @return The int16 value.
+    int16 getInt16();
+
+    ///	@brief  Assigns a int32 to the value.
+    /// @param  value       [in] The value.
+    void setInt32( int32 value );
+
+    ///	@brief  Returns the int16 value.
+    /// @return The int32 value.
+    int32 getInt32();
+
+    ///	@brief  Assigns a int64 to the value.
+    /// @param  value       [in] The value.
+    void setInt64( int64 value );
+
+    ///	@brief  Returns the int16 value.
+    /// @return The int64 value.
+    int64 getInt64();
+
+    ///	@brief  Assigns a unsigned int8 to the value.
+    /// @param  value       [in] The value.
+    void setUnsignedInt8( uint8 value );
+
+    ///	@brief  Returns the unsigned int8 value.
+    /// @return The unsigned int8 value.
+    uint8 getUnsignedInt8() const;
+
+    ///	@brief  Assigns a unsigned int16 to the value.
+    /// @param  value       [in] The value.
+    void setUnsignedInt16( uint16 value );
+
+    ///	@brief  Returns the unsigned int16 value.
+    /// @return The unsigned int16 value.
+    uint16 getUnsignedInt16() const;
+
+    ///	@brief  Assigns a unsigned int32 to the value.
+    /// @param  value       [in] The value.
+    void setUnsignedInt32( uint32 value );
+
+    ///	@brief  Returns the unsigned int8 value.
+    /// @return The unsigned int32 value.
+    uint32 getUnsignedInt32() const;
+
+    ///	@brief  Assigns a unsigned int64 to the value.
+    /// @param  value       [in] The value.
+    void setUnsignedInt64( uint64 value );
+
+    ///	@brief  Returns the unsigned int64 value.
+    /// @return The unsigned int64 value.
+    uint64 getUnsignedInt64() const;
+
+    ///	@brief  Assigns a float to the value.
+    /// @param  value       [in] The value.
+    void setFloat( float value );
+
+    ///	@brief  Returns the float value.
+    /// @return The float value.
+    float getFloat() const;
+
+    ///	@brief  Assigns a double to the value.
+    /// @param  value       [in] The value.
+    void setDouble( double value );
+
+    ///	@brief  Returns the double value.
+    /// @return The double value.
+    double getDouble() const;
+
+    ///	@brief  Assigns a std::string to the value.
+    /// @param  str         [in] The value.
+    void setString( const std::string &str );
+
+    ///	@brief  Returns the std::string value.
+    /// @return The std::string value.
+    const char *getString() const;
+
+    /// @brief  Set the reference.
+    /// @param  ref     [in] Pointer showing to the reference.
+    void setRef( Reference *ref );
+
+    /// @brief  Returns the pointer showing to the reference.
+    /// @return Pointer showing to the reference.
+    Reference *getRef() const;
+
+    ///	@brief  Dumps the value.
+    /// @param  stream  [in] The stream to write in.
+    void dump( IOStreamBase &stream );
+
+    ///	@brief  Assigns the next value.
+    ///	@param  next        [n] The next value.
+    void setNext( Value *next );
+
+    ///	@brief  Returns the next value.
+    /// @return The next value.s
+    Value *getNext() const;
+
+    /// @brief  Gets the length of the array.
+    /// @return The number of items in the array.
+    size_t size() const;
+
+    ValueType m_type;
+    size_t m_size;
+    unsigned char *m_data;
+    Value *m_next;
+
+private:
+    Value &operator =( const Value & ) ddl_no_copy;
+    Value( const Value  & ) ddl_no_copy;
+};
+
+///------------------------------------------------------------------------------------------------
+///	@brief  This class implements the value allocator.
+///------------------------------------------------------------------------------------------------
+struct DLL_ODDLPARSER_EXPORT ValueAllocator {
+    static Value *allocPrimData( Value::ValueType type, size_t len = 1 );
+    static void releasePrimData( Value **data );
+
+private:
+    ValueAllocator() ddl_no_copy;
+    ValueAllocator( const ValueAllocator  & ) ddl_no_copy;
+    ValueAllocator &operator = ( const ValueAllocator & ) ddl_no_copy;
+};
+
+END_ODDLPARSER_NS