add assimp / nix x86 config / minimal ass test

hw3d.sln

@@ -8,19 +8,13 @@ EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x64 = Debug|x64
-		Debug|x86 = Debug|x86
 		Release|x64 = Release|x64
-		Release|x86 = Release|x86
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{63E56790-0977-47CC-B52B-B1BF8746AFD4}.Debug|x64.ActiveCfg = Debug|x64
 		{63E56790-0977-47CC-B52B-B1BF8746AFD4}.Debug|x64.Build.0 = Debug|x64
-		{63E56790-0977-47CC-B52B-B1BF8746AFD4}.Debug|x86.ActiveCfg = Debug|Win32
-		{63E56790-0977-47CC-B52B-B1BF8746AFD4}.Debug|x86.Build.0 = Debug|Win32
 		{63E56790-0977-47CC-B52B-B1BF8746AFD4}.Release|x64.ActiveCfg = Release|x64
 		{63E56790-0977-47CC-B52B-B1BF8746AFD4}.Release|x64.Build.0 = Release|x64
-		{63E56790-0977-47CC-B52B-B1BF8746AFD4}.Release|x86.ActiveCfg = Release|Win32
-		{63E56790-0977-47CC-B52B-B1BF8746AFD4}.Release|x86.Build.0 = Release|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

hw3d/App.cpp

@@ -9,6 +9,9 @@
 #include "Surface.h"
 #include "GDIPlusManager.h"
 #include "imgui/imgui.h"
+#include <assimp/Importer.hpp>
+#include <assimp/scene.h>
+#include <assimp/postprocess.h>
 
 namespace dx = DirectX;
 
@@ -19,6 +22,12 @@ App::App()
 	wnd( 800,600,"The Donkey Fart Box" ),
 	light( wnd.Gfx() )
 {
+	Assimp::Importer imp;
+	auto model = imp.ReadFile( "models\\suzanne.obj",
+		aiProcess_Triangulate |
+		aiProcess_JoinIdenticalVertices
+	);
+
 	class Factory
 	{
 	public:

hw3d/assimp/include/assimp/Compiler/poppack1.h

+
+// ===============================================================================
+// May be included multiple times - resets structure packing to the defaults 
+// for all supported compilers. Reverts the changes made by #include <pushpack1.h> 
+//
+// Currently this works on the following compilers:
+// MSVC 7,8,9
+// GCC
+// BORLAND (complains about 'pack state changed but not reverted', but works)
+// ===============================================================================
+
+#ifndef AI_PUSHPACK_IS_DEFINED
+#	error pushpack1.h must be included after poppack1.h
+#endif
+
+// reset packing to the original value
+#if defined(_MSC_VER) ||  defined(__BORLANDC__) || defined (__BCPLUSPLUS__)
+#	pragma pack( pop )
+#endif
+#undef PACK_STRUCT
+
+#undef AI_PUSHPACK_IS_DEFINED

hw3d/assimp/include/assimp/Compiler/pushpack1.h

+
+
+// ===============================================================================
+// May be included multiple times - sets structure packing to 1 
+// for all supported compilers. #include <poppack1.h> reverts the changes.
+//
+// Currently this works on the following compilers:
+// MSVC 7,8,9
+// GCC
+// BORLAND (complains about 'pack state changed but not reverted', but works)
+// Clang
+//
+//
+// USAGE:
+//
+// struct StructToBePacked {
+// } PACK_STRUCT;
+//
+// ===============================================================================
+
+#ifdef AI_PUSHPACK_IS_DEFINED
+#	error poppack1.h must be included after pushpack1.h
+#endif
+
+#if defined(_MSC_VER) ||  defined(__BORLANDC__) ||	defined (__BCPLUSPLUS__)
+#	pragma pack(push,1)
+#	define PACK_STRUCT
+#elif defined( __GNUC__ )
+#	if !defined(HOST_MINGW)
+#		define PACK_STRUCT	__attribute__((__packed__))
+#	else
+#		define PACK_STRUCT	__attribute__((gcc_struct, __packed__))
+#	endif
+#else
+#	error Compiler not supported
+#endif
+
+#if defined(_MSC_VER)
+// C4103: Packing was changed after the inclusion of the header, probably missing #pragma pop
+#	pragma warning (disable : 4103) 
+#endif
+
+#define AI_PUSHPACK_IS_DEFINED

hw3d/assimp/include/assimp/DefaultIOStream.h

+/*
+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 Default file I/O using fXXX()-family of functions */
+#ifndef AI_DEFAULTIOSTREAM_H_INC
+#define AI_DEFAULTIOSTREAM_H_INC
+
+#include <stdio.h>
+#include <assimp/IOStream.hpp>
+#include <assimp/importerdesc.h>
+#include <assimp/Defines.h>
+
+namespace Assimp    {
+
+// ----------------------------------------------------------------------------------
+//! @class  DefaultIOStream
+//! @brief  Default IO implementation, use standard IO operations
+//! @note   An instance of this class can exist without a valid file handle
+//!         attached to it. All calls fail, but the instance can nevertheless be
+//!         used with no restrictions.
+class ASSIMP_API DefaultIOStream : public IOStream
+{
+    friend class DefaultIOSystem;
+#if __ANDROID__
+# if __ANDROID_API__ > 9
+#  if defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
+    friend class AndroidJNIIOSystem;
+#  endif // defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
+# endif // __ANDROID_API__ > 9
+#endif // __ANDROID__
+
+protected:
+    DefaultIOStream();
+    DefaultIOStream(FILE* pFile, const std::string &strFilename);
+
+public:
+    /** Destructor public to allow simple deletion to close the file. */
+    ~DefaultIOStream ();
+
+    // -------------------------------------------------------------------
+    /// Read from stream
+    size_t Read(void* pvBuffer,
+        size_t pSize,
+        size_t pCount);
+
+
+    // -------------------------------------------------------------------
+    /// Write to stream
+    size_t Write(const void* pvBuffer,
+        size_t pSize,
+        size_t pCount);
+
+    // -------------------------------------------------------------------
+    /// Seek specific position
+    aiReturn Seek(size_t pOffset,
+        aiOrigin pOrigin);
+
+    // -------------------------------------------------------------------
+    /// Get current seek position
+    size_t Tell() const;
+
+    // -------------------------------------------------------------------
+    /// Get size of file
+    size_t FileSize() const;
+
+    // -------------------------------------------------------------------
+    /// Flush file contents
+    void Flush();
+
+private:
+    //  File data-structure, using clib
+    FILE* mFile;
+    //  Filename
+    std::string mFilename;
+
+    // Cached file size
+    mutable size_t mCachedSize;
+};
+
+// ----------------------------------------------------------------------------------
+inline DefaultIOStream::DefaultIOStream () :
+    mFile       (NULL),
+    mFilename   (""),
+    mCachedSize(SIZE_MAX)
+{
+    // empty
+}
+
+// ----------------------------------------------------------------------------------
+inline DefaultIOStream::DefaultIOStream (FILE* pFile,
+        const std::string &strFilename) :
+    mFile(pFile),
+    mFilename(strFilename),
+    mCachedSize(SIZE_MAX)
+{
+    // empty
+}
+// ----------------------------------------------------------------------------------
+
+} // ns assimp
+
+#endif //!!AI_DEFAULTIOSTREAM_H_INC
+

hw3d/assimp/include/assimp/DefaultIOSystem.h

+/*
+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 Default implementation of IOSystem using the standard C file functions */
+#ifndef AI_DEFAULTIOSYSTEM_H_INC
+#define AI_DEFAULTIOSYSTEM_H_INC
+
+#include <assimp/IOSystem.hpp>
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** Default implementation of IOSystem using the standard C file functions */
+class ASSIMP_API DefaultIOSystem : public IOSystem
+{
+public:
+    /** Constructor. */
+    DefaultIOSystem();
+
+    /** Destructor. */
+    ~DefaultIOSystem();
+
+    // -------------------------------------------------------------------
+    /** Tests for the existence of a file at the given path. */
+    bool Exists( const char* pFile) const;
+
+    // -------------------------------------------------------------------
+    /** Returns the directory separator. */
+    char getOsSeparator() const;
+
+    // -------------------------------------------------------------------
+    /** Open a new file with a given path. */
+    IOStream* Open( const char* pFile, const char* pMode = "rb");
+
+    // -------------------------------------------------------------------
+    /** Closes the given file and releases all resources associated with it. */
+    void Close( IOStream* pFile);
+
+    // -------------------------------------------------------------------
+    /** Compare two paths */
+    bool ComparePaths (const char* one, const char* second) const;
+
+    /** @brief get the file name of a full filepath
+     * example: /tmp/archive.tar.gz -> archive.tar.gz
+     */
+    static std::string fileName( const std::string &path );
+
+    /** @brief get the complete base name of a full filepath
+     * example: /tmp/archive.tar.gz -> archive.tar
+     */
+    static std::string completeBaseName( const std::string &path);
+
+    /** @brief get the path of a full filepath
+     * example: /tmp/archive.tar.gz -> /tmp/
+     */
+    static std::string absolutePath( const std::string &path);
+};
+
+} //!ns Assimp
+
+#endif //AI_DEFAULTIOSYSTEM_H_INC

hw3d/assimp/include/assimp/DefaultLogger.hpp

+/*
+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 DefaultLogger.hpp
+*/
+
+#ifndef INCLUDED_AI_DEFAULTLOGGER
+#define INCLUDED_AI_DEFAULTLOGGER
+
+#include "Logger.hpp"
+#include "LogStream.hpp"
+#include "NullLogger.hpp"
+#include <vector>
+
+namespace Assimp    {
+// ------------------------------------------------------------------------------------
+class IOStream;
+struct LogStreamInfo;
+
+/** default name of logfile */
+#define ASSIMP_DEFAULT_LOG_NAME "AssimpLog.txt"
+
+// ------------------------------------------------------------------------------------
+/** @brief CPP-API: Primary logging facility of Assimp.
+ *
+ *  The library stores its primary #Logger as a static member of this class.
+ *  #get() returns this primary logger. By default the underlying implementation is
+ *  just a #NullLogger which rejects all log messages. By calling #create(), logging
+ *  is turned on. To capture the log output multiple log streams (#LogStream) can be
+ *  attach to the logger. Some default streams for common streaming locations (such as
+ *  a file, std::cout, OutputDebugString()) are also provided.
+ *
+ *  If you wish to customize the logging at an even deeper level supply your own
+ *  implementation of #Logger to #set().
+ *  @note The whole logging stuff causes a small extra overhead for all imports. */
+class ASSIMP_API DefaultLogger :
+    public Logger   {
+
+public:
+
+    // ----------------------------------------------------------------------
+    /** @brief Creates a logging instance.
+     *  @param name Name for log file. Only valid in combination
+     *    with the aiDefaultLogStream_FILE flag.
+     *  @param severity Log severity, VERBOSE turns on debug messages
+     *  @param defStreams  Default log streams to be attached. Any bitwise
+     *    combination of the aiDefaultLogStream enumerated values.
+     *    If #aiDefaultLogStream_FILE is specified but an empty string is
+     *    passed for 'name', no log file is created at all.
+     *  @param  io IOSystem to be used to open external files (such as the
+     *   log file). Pass NULL to rely on the default implementation.
+     *  This replaces the default #NullLogger with a #DefaultLogger instance. */
+    static Logger *create(const char* name = ASSIMP_DEFAULT_LOG_NAME,
+        LogSeverity severity    = NORMAL,
+        unsigned int defStreams = aiDefaultLogStream_DEBUGGER | aiDefaultLogStream_FILE,
+        IOSystem* io            = NULL);
+
+    // ----------------------------------------------------------------------
+    /** @brief Setup a custom #Logger implementation.
+     *
+     *  Use this if the provided #DefaultLogger class doesn't fit into
+     *  your needs. If the provided message formatting is OK for you,
+     *  it's much easier to use #create() and to attach your own custom
+     *  output streams to it.
+     *  @param logger Pass NULL to setup a default NullLogger*/
+    static void set (Logger *logger);
+
+    // ----------------------------------------------------------------------
+    /** @brief  Getter for singleton instance
+     *   @return Only instance. This is never null, but it could be a
+     *  NullLogger. Use isNullLogger to check this.*/
+    static Logger *get();
+
+    // ----------------------------------------------------------------------
+    /** @brief  Return whether a #NullLogger is currently active
+     *  @return true if the current logger is a #NullLogger.
+     *  Use create() or set() to setup a logger that does actually do
+     *  something else than just rejecting all log messages. */
+    static bool isNullLogger();
+
+    // ----------------------------------------------------------------------
+    /** @brief  Kills the current singleton logger and replaces it with a
+     *  #NullLogger instance. */
+    static void kill();
+
+    // ----------------------------------------------------------------------
+    /** @copydoc Logger::attachStream   */
+    bool attachStream(LogStream *pStream,
+        unsigned int severity);
+
+    // ----------------------------------------------------------------------
+    /** @copydoc Logger::detatchStream */
+    bool detatchStream(LogStream *pStream,
+        unsigned int severity);
+
+
+private:
+
+    // ----------------------------------------------------------------------
+    /** @briefPrivate construction for internal use by create().
+     *  @param severity Logging granularity  */
+    explicit DefaultLogger(LogSeverity severity);
+
+    // ----------------------------------------------------------------------
+    /** @briefDestructor    */
+    ~DefaultLogger();
+
+private:
+
+    /** @brief  Logs debug infos, only been written when severity level VERBOSE is set */
+    void OnDebug(const char* message);
+
+    /** @brief  Logs an info message */
+    void OnInfo(const char*  message);
+
+    /** @brief  Logs a warning message */
+    void OnWarn(const char*  message);
+
+    /** @brief  Logs an error message */
+    void OnError(const char* message);
+
+    // ----------------------------------------------------------------------
+    /** @brief Writes a message to all streams */
+    void WriteToStreams(const char* message, ErrorSeverity ErrorSev );
+
+    // ----------------------------------------------------------------------
+    /** @brief Returns the thread id.
+     *  @note This is an OS specific feature, if not supported, a
+     *    zero will be returned.
+     */
+    unsigned int GetThreadID();
+
+private:
+    //  Aliases for stream container
+    typedef std::vector<LogStreamInfo*> StreamArray;
+    typedef std::vector<LogStreamInfo*>::iterator StreamIt;
+    typedef std::vector<LogStreamInfo*>::const_iterator ConstStreamIt;
+
+    //! only logging instance
+    static Logger *m_pLogger;
+    static NullLogger s_pNullLogger;
+
+    //! Attached streams
+    StreamArray m_StreamArray;
+
+    bool noRepeatMsg;
+    char lastMsg[MAX_LOG_MESSAGE_LENGTH*2];
+    size_t lastLen;
+};
+// ------------------------------------------------------------------------------------
+
+} // Namespace Assimp
+
+#endif // !! INCLUDED_AI_DEFAULTLOGGER

hw3d/assimp/include/assimp/Defines.h

+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2012, 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.
+
+----------------------------------------------------------------------
+*/
+
+// We need those constants, workaround for any platforms where nobody defined them yet
+#if (!defined SIZE_MAX)
+#   define SIZE_MAX (~((size_t)0))
+#endif
+
+#if (!defined UINT_MAX)
+#   define UINT_MAX (~((unsigned int)0))
+#endif
+

hw3d/assimp/include/assimp/IOStream.hpp

+/*
+---------------------------------------------------------------------------
+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 IOStream.hpp
+ *  @brief File I/O wrappers for C++.
+ */
+
+#pragma once
+#ifndef AI_IOSTREAM_H_INC
+#define AI_IOSTREAM_H_INC
+
+#include "types.h"
+
+#ifndef __cplusplus
+#   error This header requires C++ to be used. aiFileIO.h is the \
+    corresponding C interface.
+#endif
+
+namespace Assimp    {
+
+// ----------------------------------------------------------------------------------
+/** @brief CPP-API: Class to handle file I/O for C++
+ *
+ *  Derive an own implementation from this interface to provide custom IO handling
+ *  to the Importer. If you implement this interface, be sure to also provide an
+ *  implementation for IOSystem that creates instances of your custom IO class.
+*/
+class ASSIMP_API IOStream
+#ifndef SWIG
+    : public Intern::AllocateFromAssimpHeap
+#endif
+{
+protected:
+    /** Constructor protected, use IOSystem::Open() to create an instance. */
+    IOStream(void);
+
+public:
+    // -------------------------------------------------------------------
+    /** @brief Destructor. Deleting the object closes the underlying file,
+     * alternatively you may use IOSystem::Close() to release the file.
+     */
+    virtual ~IOStream();
+
+    // -------------------------------------------------------------------
+    /** @brief Read from the file
+     *
+     * See fread() for more details
+     * This fails for write-only files */
+    virtual size_t Read(void* pvBuffer,
+        size_t pSize,
+        size_t pCount) = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Write to the file
+    *
+    * See fwrite() for more details
+    * This fails for read-only files */
+    virtual size_t Write(const void* pvBuffer,
+        size_t pSize,
+        size_t pCount) = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Set the read/write cursor of the file
+     *
+     * Note that the offset is _negative_ for aiOrigin_END.
+     * See fseek() for more details */
+    virtual aiReturn Seek(size_t pOffset,
+        aiOrigin pOrigin) = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Get the current position of the read/write cursor
+     *
+     * See ftell() for more details */
+    virtual size_t Tell() const = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Returns filesize
+     *  Returns the filesize. */
+    virtual size_t FileSize() const = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Flush the contents of the file buffer (for writers)
+     *  See fflush() for more details.
+     */
+    virtual void Flush() = 0;
+}; //! class IOStream
+
+// ----------------------------------------------------------------------------------
+inline IOStream::IOStream()
+{
+    // empty
+}
+
+// ----------------------------------------------------------------------------------
+inline IOStream::~IOStream()
+{
+    // empty
+}
+// ----------------------------------------------------------------------------------
+} //!namespace Assimp
+
+#endif //!!AI_IOSTREAM_H_INC

hw3d/assimp/include/assimp/IOSystem.hpp

+/*
+---------------------------------------------------------------------------
+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 IOSystem.hpp
+ *  @brief File system wrapper for C++. Inherit this class to supply
+ *  custom file handling logic to the Import library.
+*/
+
+#pragma once
+#ifndef AI_IOSYSTEM_H_INC
+#define AI_IOSYSTEM_H_INC
+
+#ifndef __cplusplus
+#   error This header requires C++ to be used. aiFileIO.h is the \
+    corresponding C interface.
+#endif
+
+#include "types.h"
+
+#ifdef _WIN32
+#   include <direct.h>  
+#   include <stdlib.h>  
+#   include <stdio.h>  
+#else
+#   include <sys/stat.h>
+#   include <sys/types.h>
+#   include <unistd.h>
+#endif // _WIN32
+
+#include <vector>
+
+namespace Assimp    {
+
+    class IOStream;
+
+// ---------------------------------------------------------------------------
+/** @brief CPP-API: Interface to the file system.
+ *
+ *  Derive an own implementation from this interface to supply custom file handling
+ *  to the importer library. If you implement this interface, you also want to
+ *  supply a custom implementation for IOStream.
+ *
+ *  @see Importer::SetIOHandler() 
+ */
+class ASSIMP_API IOSystem
+#ifndef SWIG
+    : public Intern::AllocateFromAssimpHeap
+#endif
+{
+public:
+
+    // -------------------------------------------------------------------
+    /** @brief Default constructor.
+     *
+     *  Create an instance of your derived class and assign it to an
+     *  #Assimp::Importer instance by calling Importer::SetIOHandler().
+     */
+    IOSystem();
+
+    // -------------------------------------------------------------------
+    /** @brief Virtual destructor.
+     *
+     *  It is safe to be called from within DLL Assimp, we're constructed
+     *  on Assimp's heap.
+     */
+    virtual ~IOSystem();
+
+
+public:
+
+    // -------------------------------------------------------------------
+    /** @brief For backward compatibility
+     *  @see Exists(const char*)
+     */
+    AI_FORCE_INLINE bool Exists( const std::string& pFile) const;
+
+    // -------------------------------------------------------------------
+    /** @brief Tests for the existence of a file at the given path.
+     *
+     * @param pFile Path to the file
+     * @return true if there is a file with this path, else false.
+     */
+    virtual bool Exists( const char* pFile) const = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Returns the system specific directory separator
+     *  @return System specific directory separator
+     */
+    virtual char getOsSeparator() const = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Open a new file with a given path.
+     *
+     *  When the access to the file is finished, call Close() to release
+     *  all associated resources (or the virtual dtor of the IOStream).
+     *
+     *  @param pFile Path to the file
+     *  @param pMode Desired file I/O mode. Required are: "wb", "w", "wt",
+     *         "rb", "r", "rt".
+     *
+     *  @return New IOStream interface allowing the lib to access
+     *         the underlying file.
+     *  @note When implementing this class to provide custom IO handling,
+     *  you probably have to supply an own implementation of IOStream as well.
+     */
+    virtual IOStream* Open(const char* pFile,
+        const char* pMode = "rb") = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief For backward compatibility
+     *  @see Open(const char*, const char*)
+     */
+    inline IOStream* Open(const std::string& pFile,
+        const std::string& pMode = std::string("rb"));
+
+    // -------------------------------------------------------------------
+    /** @brief Closes the given file and releases all resources
+     *    associated with it.
+     *  @param pFile The file instance previously created by Open().
+     */
+    virtual void Close( IOStream* pFile) = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Compares two paths and check whether the point to
+     *         identical files.
+     *
+     * The dummy implementation of this virtual member performs a
+     * case-insensitive comparison of the given strings. The default IO
+     * system implementation uses OS mechanisms to convert relative into
+     * absolute paths, so the result can be trusted.
+     * @param one First file
+     * @param second Second file
+     * @return true if the paths point to the same file. The file needn't
+     *   be existing, however.
+     */
+    virtual bool ComparePaths (const char* one,
+        const char* second) const;
+
+    // -------------------------------------------------------------------
+    /** @brief For backward compatibility
+     *  @see ComparePaths(const char*, const char*)
+     */
+    inline bool ComparePaths (const std::string& one,
+        const std::string& second) const;
+
+    // -------------------------------------------------------------------
+    /** @brief Pushes a new directory onto the directory stack.
+     *  @param path Path to push onto the stack.
+     *  @return True, when push was successful, false if path is empty.
+     */
+    virtual bool PushDirectory( const std::string &path );
+
+    // -------------------------------------------------------------------
+    /** @brief Returns the top directory from the stack.
+     *  @return The directory on the top of the stack.
+     *          Returns empty when no directory was pushed to the stack.
+     */
+    virtual const std::string &CurrentDirectory() const;
+
+    // -------------------------------------------------------------------
+    /** @brief Returns the number of directories stored on the stack.
+     *  @return The number of directories of the stack.
+     */
+    virtual size_t StackSize() const;
+
+    // -------------------------------------------------------------------
+    /** @brief Pops the top directory from the stack.
+     *  @return True, when a directory was on the stack. False if no
+     *          directory was on the stack.
+     */
+    virtual bool PopDirectory();
+
+    // -------------------------------------------------------------------
+    /** @brief CReates an new directory at the given path.
+     *  @param  path    [in] The path to create.
+     *  @return True, when a directory was created. False if the directory
+     *           cannot be created.
+     */
+    virtual bool CreateDirectory( const std::string &path );
+
+    // -------------------------------------------------------------------
+    /** @brief Will change the current directory to the given path.
+     *  @param path     [in] The path to change to.
+     *  @return True, when the directory has changed successfully.
+     */
+    virtual bool ChangeDirectory( const std::string &path );
+
+    virtual bool DeleteFile( const std::string &file );
+
+private:
+    std::vector<std::string> m_pathStack;
+};
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+IOSystem::IOSystem()
+: m_pathStack() {
+    // empty
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+IOSystem::~IOSystem() {
+    // empty
+}
+
+// ----------------------------------------------------------------------------
+// For compatibility, the interface of some functions taking a std::string was
+// changed to const char* to avoid crashes between binary incompatible STL
+// versions. This code her is inlined,  so it shouldn't cause any problems.
+// ----------------------------------------------------------------------------
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+IOStream* IOSystem::Open(const std::string& pFile, const std::string& pMode) {
+    // NOTE:
+    // For compatibility, interface was changed to const char* to
+    // avoid crashes between binary incompatible STL versions
+    return Open(pFile.c_str(),pMode.c_str());
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::Exists( const std::string& pFile) const {
+    // NOTE:
+    // For compatibility, interface was changed to const char* to
+    // avoid crashes between binary incompatible STL versions
+    return Exists(pFile.c_str());
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::ComparePaths (const std::string& one, const std::string& second) const {
+    // NOTE:
+    // For compatibility, interface was changed to const char* to
+    // avoid crashes between binary incompatible STL versions
+    return ComparePaths(one.c_str(),second.c_str());
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::PushDirectory( const std::string &path ) {
+    if ( path.empty() ) {
+        return false;
+    }
+
+    m_pathStack.push_back( path );
+
+    return true;
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+const std::string &IOSystem::CurrentDirectory() const {
+    if ( m_pathStack.empty() ) {
+        static const std::string Dummy("");
+        return Dummy;
+    }
+    return m_pathStack[ m_pathStack.size()-1 ];
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+size_t IOSystem::StackSize() const {
+    return m_pathStack.size();
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::PopDirectory() {
+    if ( m_pathStack.empty() ) {
+        return false;
+    }
+
+    m_pathStack.pop_back();
+
+    return true;
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::CreateDirectory( const std::string &path ) {
+    if ( path.empty() ) {
+        return false;
+    }
+
+#ifdef _WIN32
+    return 0 != ::_mkdir( path.c_str() );
+#else
+    return 0 != ::mkdir( path.c_str(), 0777 );
+#endif // _WIN32
+}
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::ChangeDirectory( const std::string &path ) {
+    if ( path.empty() ) {
+        return false;
+    }
+
+#ifdef _WIN32
+    return 0 != ::_chdir( path.c_str() );
+#else
+    return 0 != ::chdir( path.c_str() );
+#endif // _WIN32
+}
+
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE
+bool IOSystem::DeleteFile( const std::string &file ) {
+    if ( file.empty() ) {
+        return false;
+    }
+    const int retCode( ::remove( file.c_str() ) );
+    return ( 0 == retCode );
+}
+} //!ns Assimp
+
+#endif //AI_IOSYSTEM_H_INC

hw3d/assimp/include/assimp/LogStream.hpp

+/*
+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 LogStream.hpp
+ *  @brief Abstract base class 'LogStream', representing an output log stream.
+ */
+#ifndef INCLUDED_AI_LOGSTREAM_H
+#define INCLUDED_AI_LOGSTREAM_H
+
+#include "types.h"
+
+namespace Assimp    {
+
+class IOSystem;
+
+// ------------------------------------------------------------------------------------
+/** @brief CPP-API: Abstract interface for log stream implementations.
+ *
+ *  Several default implementations are provided, see #aiDefaultLogStream for more
+ *  details. Writing your own implementation of LogStream is just necessary if these
+ *  are not enough for your purpose. */
+class ASSIMP_API LogStream
+#ifndef SWIG
+    : public Intern::AllocateFromAssimpHeap
+#endif
+{
+protected:
+    /** @brief  Default constructor */
+    LogStream();
+
+public:
+    /** @brief  Virtual destructor  */
+    virtual ~LogStream();
+
+    // -------------------------------------------------------------------
+    /** @brief  Overwrite this for your own output methods
+     *
+     *  Log messages *may* consist of multiple lines and you shouldn't
+     *  expect a consistent formatting. If you want custom formatting
+     *  (e.g. generate HTML), supply a custom instance of Logger to
+     *  #DefaultLogger:set(). Usually you can *expect* that a log message
+     *  is exactly one line and terminated with a single \n character.
+     *  @param message Message to be written */
+    virtual void write(const char* message) = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Creates a default log stream
+     *  @param streams Type of the default stream
+     *  @param name For aiDefaultLogStream_FILE: name of the output file
+     *  @param io For aiDefaultLogStream_FILE: IOSystem to be used to open the output
+     *   file. Pass NULL for the default implementation.
+     *  @return New LogStream instance.  */
+    static LogStream* createDefaultStream(aiDefaultLogStream stream,
+        const char* name = "AssimpLog.txt",
+        IOSystem* io = NULL);
+
+}; // !class LogStream
+
+inline
+LogStream::LogStream() {
+    // empty
+}
+
+inline
+LogStream::~LogStream() {
+    // empty
+}
+
+// ------------------------------------------------------------------------------------
+} // Namespace Assimp
+
+#endif

hw3d/assimp/include/assimp/Logger.hpp

+/*
+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 Logger.hpp
+ *  @brief Abstract base class 'Logger', base of the logging system.
+ */
+#ifndef INCLUDED_AI_LOGGER_H
+#define INCLUDED_AI_LOGGER_H
+
+#include "types.h"
+
+namespace Assimp {
+
+class LogStream;
+
+// Maximum length of a log message. Longer messages are rejected.
+#define MAX_LOG_MESSAGE_LENGTH 1024u
+
+// ----------------------------------------------------------------------------------
+/** @brief CPP-API: Abstract interface for logger implementations.
+ *  Assimp provides a default implementation and uses it for almost all
+ *  logging stuff ('DefaultLogger'). This class defines just basic logging
+ *  behaviour and is not of interest for you. Instead, take a look at #DefaultLogger. */
+class ASSIMP_API Logger
+#ifndef SWIG
+    : public Intern::AllocateFromAssimpHeap
+#endif
+{
+public:
+
+    // ----------------------------------------------------------------------
+    /** @enum   LogSeverity
+     *  @brief  Log severity to describe the granularity of logging.
+     */
+    enum LogSeverity
+    {
+        NORMAL,     //!< Normal granularity of logging
+        VERBOSE     //!< Debug infos will be logged, too
+    };
+
+    // ----------------------------------------------------------------------
+    /** @enum   ErrorSeverity
+     *  @brief  Description for severity of a log message.
+     *
+     *  Every LogStream has a bitwise combination of these flags.
+     *  A LogStream doesn't receive any messages of a specific type
+     *  if it doesn't specify the corresponding ErrorSeverity flag.
+     */
+    enum ErrorSeverity
+    {
+        Debugging   = 1,    //!< Debug log message
+        Info        = 2,    //!< Info log message
+        Warn        = 4,    //!< Warn log message
+        Err         = 8     //!< Error log message
+    };
+
+public:
+
+    /** @brief  Virtual destructor */
+    virtual ~Logger();
+
+    // ----------------------------------------------------------------------
+    /** @brief  Writes a debug message
+     *   @param message Debug message*/
+    void debug(const char* message);
+    inline void debug(const std::string &message);
+
+    // ----------------------------------------------------------------------
+    /** @brief  Writes a info message
+     *  @param  message Info message*/
+    void info(const char* message);
+    inline void info(const std::string &message);
+
+    // ----------------------------------------------------------------------
+    /** @brief  Writes a warning message
+     *  @param  message Warn message*/
+    void warn(const char* message);
+    inline void warn(const std::string &message);
+
+    // ----------------------------------------------------------------------
+    /** @brief  Writes an error message
+     *  @param  message Error message*/
+    void error(const char* message);
+    inline void error(const std::string &message);
+
+    // ----------------------------------------------------------------------
+    /** @brief  Set a new log severity.
+     *  @param  log_severity New severity for logging*/
+    void setLogSeverity(LogSeverity log_severity);
+
+    // ----------------------------------------------------------------------
+    /** @brief Get the current log severity*/
+    LogSeverity getLogSeverity() const;
+
+    // ----------------------------------------------------------------------
+    /** @brief  Attach a new log-stream
+     *
+     *  The logger takes ownership of the stream and is responsible
+     *  for its destruction (which is done using ::delete when the logger
+     *  itself is destroyed). Call detachStream to detach a stream and to
+     *  gain ownership of it again.
+     *   @param pStream  Log-stream to attach
+     *  @param severity  Message filter, specified which types of log
+     *    messages are dispatched to the stream. Provide a bitwise
+     *    combination of the ErrorSeverity flags.
+     *  @return true if the stream has been attached, false otherwise.*/
+    virtual bool attachStream(LogStream *pStream,
+        unsigned int severity = Debugging | Err | Warn | Info) = 0;
+
+    // ----------------------------------------------------------------------
+    /** @brief  Detach a still attached stream from the logger (or
+     *          modify the filter flags bits)
+     *   @param pStream Log-stream instance for detaching
+     *  @param severity Provide a bitwise combination of the ErrorSeverity
+     *    flags. This value is &~ed with the current flags of the stream,
+     *    if the result is 0 the stream is detached from the Logger and
+     *    the caller retakes the possession of the stream.
+     *  @return true if the stream has been detached, false otherwise.*/
+    virtual bool detatchStream(LogStream *pStream,
+        unsigned int severity = Debugging | Err | Warn | Info) = 0;
+
+protected:
+
+    /** Default constructor */
+    Logger();
+
+    /** Construction with a given log severity */
+    explicit Logger(LogSeverity severity);
+
+    // ----------------------------------------------------------------------
+    /** @brief Called as a request to write a specific debug message
+     *  @param  message Debug message. Never longer than
+     *    MAX_LOG_MESSAGE_LENGTH characters (excluding the '0').
+     *  @note  The message string is only valid until the scope of
+     *    the function is left.
+     */
+    virtual void OnDebug(const char* message)= 0;
+
+    // ----------------------------------------------------------------------
+    /** @brief Called as a request to write a specific info message
+     *  @param  message Info message. Never longer than
+     *    MAX_LOG_MESSAGE_LENGTH characters (ecxluding the '0').
+     *  @note  The message string is only valid until the scope of
+     *    the function is left.
+     */
+    virtual void OnInfo(const char* message) = 0;
+
+    // ----------------------------------------------------------------------
+    /** @brief Called as a request to write a specific warn message
+     *  @param  message Warn message. Never longer than
+     *    MAX_LOG_MESSAGE_LENGTH characters (exluding the '0').
+     *  @note  The message string is only valid until the scope of
+     *    the function is left.
+     */
+    virtual void OnWarn(const char* essage) = 0;
+
+    // ----------------------------------------------------------------------
+    /** @brief Called as a request to write a specific error message
+     *  @param  message Error message. Never longer than
+     *    MAX_LOG_MESSAGE_LENGTH characters (exluding the '0').
+     *  @note  The message string is only valid until the scope of
+     *    the function is left.
+     */
+    virtual void OnError(const char* message) = 0;
+
+protected:
+
+    //! Logger severity
+    LogSeverity m_Severity;
+};
+
+// ----------------------------------------------------------------------------------
+//  Default constructor
+inline Logger::Logger() {
+    setLogSeverity(NORMAL);
+}
+
+// ----------------------------------------------------------------------------------
+//  Virtual destructor
+inline  Logger::~Logger()
+{
+}
+
+// ----------------------------------------------------------------------------------
+// Construction with given logging severity
+inline Logger::Logger(LogSeverity severity) {
+    setLogSeverity(severity);
+}
+
+// ----------------------------------------------------------------------------------
+// Log severity setter
+inline void Logger::setLogSeverity(LogSeverity log_severity){
+    m_Severity = log_severity;
+}
+
+// ----------------------------------------------------------------------------------
+// Log severity getter
+inline Logger::LogSeverity Logger::getLogSeverity() const {
+    return m_Severity;
+}
+
+// ----------------------------------------------------------------------------------
+inline void Logger::debug(const std::string &message)
+{
+    return debug(message.c_str());
+}
+
+// ----------------------------------------------------------------------------------
+inline void Logger::error(const std::string &message)
+{
+    return error(message.c_str());
+}
+
+// ----------------------------------------------------------------------------------
+inline void Logger::warn(const std::string &message)
+{
+    return warn(message.c_str());
+}
+
+// ----------------------------------------------------------------------------------
+inline void Logger::info(const std::string &message)
+{
+    return info(message.c_str());
+}
+
+// ----------------------------------------------------------------------------------
+
+} // Namespace Assimp
+
+#endif // !! INCLUDED_AI_LOGGER_H

hw3d/assimp/include/assimp/NullLogger.hpp

+/*
+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  NullLogger.hpp
+ *  @brief Dummy logger
+*/
+
+#ifndef INCLUDED_AI_NULLLOGGER_H
+#define INCLUDED_AI_NULLLOGGER_H
+
+#include "Logger.hpp"
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** @brief CPP-API: Empty logging implementation.
+ *
+ * Does nothing! Used by default if the application hasn't requested a
+ * custom logger via #DefaultLogger::set() or #DefaultLogger::create(); */
+class ASSIMP_API NullLogger
+    : public Logger {
+
+public:
+
+    /** @brief  Logs a debug message */
+    void OnDebug(const char* message) {
+        (void)message; //this avoids compiler warnings
+    }
+
+    /** @brief  Logs an info message */
+    void OnInfo(const char* message) {
+        (void)message; //this avoids compiler warnings
+    }
+
+    /** @brief  Logs a warning message */
+    void OnWarn(const char* message) {
+        (void)message; //this avoids compiler warnings
+    }
+
+    /** @brief  Logs an error message */
+    void OnError(const char* message) {
+        (void)message; //this avoids compiler warnings
+    }
+
+    /** @brief  Detach a still attached stream from logger */
+    bool attachStream(LogStream *pStream, unsigned int severity) {
+        (void)pStream; (void)severity; //this avoids compiler warnings
+        return false;
+    }
+
+    /** @brief  Detach a still attached stream from logger */
+    bool detatchStream(LogStream *pStream, unsigned int severity) {
+        (void)pStream; (void)severity; //this avoids compiler warnings
+        return false;
+    }
+
+private:
+};
+}
+#endif // !! AI_NULLLOGGER_H_INCLUDED

hw3d/assimp/include/assimp/ProgressHandler.hpp

+/*
+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 ProgressHandler.hpp
+ *  @brief Abstract base class 'ProgressHandler'.
+ */
+#pragma once
+#ifndef AI_PROGRESSHANDLER_H_INC
+#define AI_PROGRESSHANDLER_H_INC
+
+#include "types.h"
+
+namespace Assimp    {
+
+// ------------------------------------------------------------------------------------
+/** @brief CPP-API: Abstract interface for custom progress report receivers.
+ *
+ *  Each #Importer instance maintains its own #ProgressHandler. The default
+ *  implementation provided by Assimp doesn't do anything at all. */
+class ASSIMP_API ProgressHandler
+#ifndef SWIG
+    : public Intern::AllocateFromAssimpHeap
+#endif
+{
+protected:
+    /** @brief  Default constructor */
+    ProgressHandler () {
+    }
+public:
+    /** @brief  Virtual destructor  */
+    virtual ~ProgressHandler () {
+    }
+
+    // -------------------------------------------------------------------
+    /** @brief Progress callback.
+     *  @param percentage An estimate of the current loading progress,
+     *    in percent. Or -1.f if such an estimate is not available.
+     *
+     *  There are restriction on what you may do from within your
+     *  implementation of this method: no exceptions may be thrown and no
+     *  non-const #Importer methods may be called. It is
+     *  not generally possible to predict the number of callbacks
+     *  fired during a single import.
+     *
+     *  @return Return false to abort loading at the next possible
+     *   occasion (loaders and Assimp are generally allowed to perform
+     *   all needed cleanup tasks prior to returning control to the
+     *   caller). If the loading is aborted, #Importer::ReadFile()
+     *   returns always NULL.
+     *   */
+    virtual bool Update(float percentage = -1.f) = 0;
+
+    // -------------------------------------------------------------------
+    /** @brief Progress callback for file loading steps
+     *  @param numberOfSteps The number of total post-processing
+     *   steps
+     *  @param currentStep The index of the current post-processing
+     *   step that will run, or equal to numberOfSteps if all of
+     *   them has finished. This number is always strictly monotone
+     *   increasing, although not necessarily linearly.
+     *
+     *  @note This is currently only used at the start and the end
+     *   of the file parsing.
+     *   */
+    virtual void UpdateFileRead(int currentStep /*= 0*/, int numberOfSteps /*= 0*/) {
+        float f = numberOfSteps ? currentStep / (float)numberOfSteps : 1.0f;
+        Update( f * 0.5f );
+    }
+
+    // -------------------------------------------------------------------
+    /** @brief Progress callback for post-processing steps
+     *  @param numberOfSteps The number of total post-processing
+     *   steps
+     *  @param currentStep The index of the current post-processing
+     *   step that will run, or equal to numberOfSteps if all of
+     *   them has finished. This number is always strictly monotone
+     *   increasing, although not necessarily linearly.
+     *   */
+    virtual void UpdatePostProcess(int currentStep /*= 0*/, int numberOfSteps /*= 0*/) {
+        float f = numberOfSteps ? currentStep / (float)numberOfSteps : 1.0f;
+        Update( f * 0.5f + 0.5f );
+    }
+
+}; // !class ProgressHandler
+// ------------------------------------------------------------------------------------
+} // Namespace Assimp
+
+#endif // AI_PROGRESSHANDLER_H_INC

hw3d/assimp/include/assimp/SceneCombiner.h

+/*
+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 Declares a helper class, "SceneCombiner" providing various
+ *  utilities to merge scenes.
+ */
+#ifndef AI_SCENE_COMBINER_H_INC
+#define AI_SCENE_COMBINER_H_INC
+
+#include <assimp/ai_assert.h>
+#include <assimp/types.h>
+#include <assimp/Defines.h>
+#include <stddef.h>
+#include <set>
+#include <list>
+#include <stdint.h>
+
+#include <vector>
+
+struct aiScene;
+struct aiNode;
+struct aiMaterial;
+struct aiTexture;
+struct aiCamera;
+struct aiLight;
+struct aiMetadata;
+struct aiBone;
+struct aiMesh;
+struct aiAnimation;
+struct aiNodeAnim;
+
+namespace Assimp    {
+
+// ---------------------------------------------------------------------------
+/** \brief Helper data structure for SceneCombiner.
+ *
+ *  Describes to which node a scene must be attached to.
+ */
+struct AttachmentInfo
+{
+    AttachmentInfo()
+        :   scene           (NULL)
+        ,   attachToNode    (NULL)
+    {}
+
+    AttachmentInfo(aiScene* _scene, aiNode* _attachToNode)
+        :   scene           (_scene)
+        ,   attachToNode    (_attachToNode)
+    {}
+
+    aiScene* scene;
+    aiNode*  attachToNode;
+};
+
+// ---------------------------------------------------------------------------
+struct NodeAttachmentInfo
+{
+    NodeAttachmentInfo()
+        :   node            (NULL)
+        ,   attachToNode    (NULL)
+        ,   resolved        (false)
+        ,   src_idx         (SIZE_MAX)
+    {}
+
+    NodeAttachmentInfo(aiNode* _scene, aiNode* _attachToNode,size_t idx)
+        :   node            (_scene)
+        ,   attachToNode    (_attachToNode)
+        ,   resolved        (false)
+        ,   src_idx         (idx)
+    {}
+
+    aiNode*  node;
+    aiNode*  attachToNode;
+    bool     resolved;
+    size_t   src_idx;
+};
+
+// ---------------------------------------------------------------------------
+/** @def AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES
+ *  Generate unique names for all named scene items
+ */
+#define AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES      0x1
+
+/** @def AI_INT_MERGE_SCENE_GEN_UNIQUE_MATNAMES
+ *  Generate unique names for materials, too.
+ *  This is not absolutely required to pass the validation.
+ */
+#define AI_INT_MERGE_SCENE_GEN_UNIQUE_MATNAMES   0x2
+
+/** @def AI_INT_MERGE_SCENE_DUPLICATES_DEEP_CPY
+ * Use deep copies of duplicate scenes
+ */
+#define AI_INT_MERGE_SCENE_DUPLICATES_DEEP_CPY   0x4
+
+/** @def AI_INT_MERGE_SCENE_RESOLVE_CROSS_ATTACHMENTS
+ * If attachment nodes are not found in the given master scene,
+ * search the other imported scenes for them in an any order.
+ */
+#define AI_INT_MERGE_SCENE_RESOLVE_CROSS_ATTACHMENTS 0x8
+
+/** @def AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY
+ * Can be combined with AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES.
+ * Unique names are generated, but only if this is absolutely
+ * required to avoid name conflicts.
+ */
+#define AI_INT_MERGE_SCENE_GEN_UNIQUE_NAMES_IF_NECESSARY 0x10
+
+typedef std::pair<aiBone*,unsigned int> BoneSrcIndex;
+
+// ---------------------------------------------------------------------------
+/** @brief Helper data structure for SceneCombiner::MergeBones.
+ */
+struct BoneWithHash : public std::pair<uint32_t,aiString*>  {
+    std::vector<BoneSrcIndex> pSrcBones;
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Utility for SceneCombiner
+ */
+struct SceneHelper
+{
+    SceneHelper ()
+        : scene     (NULL)
+        , idlen     (0)
+    {
+        id[0] = 0;
+    }
+
+    explicit SceneHelper (aiScene* _scene)
+        : scene     (_scene)
+        , idlen     (0)
+    {
+        id[0] = 0;
+    }
+
+    AI_FORCE_INLINE aiScene* operator-> () const
+    {
+        return scene;
+    }
+
+    // scene we're working on
+    aiScene* scene;
+
+    // prefix to be added to all identifiers in the scene ...
+    char id [32];
+
+    // and its strlen()
+    unsigned int idlen;
+
+    // hash table to quickly check whether a name is contained in the scene
+    std::set<unsigned int> hashes;
+};
+
+// ---------------------------------------------------------------------------
+/** \brief Static helper class providing various utilities to merge two
+ *    scenes. It is intended as internal utility and NOT for use by
+ *    applications.
+ *
+ * The class is currently being used by various postprocessing steps
+ * and loaders (ie. LWS).
+ */
+class ASSIMP_API SceneCombiner {
+    // class cannot be instanced
+    SceneCombiner() {
+        // empty
+    }
+
+    ~SceneCombiner() {
+        // empty
+    }
+
+public:
+    // -------------------------------------------------------------------
+    /** Merges two or more scenes.
+     *
+     *  @param dest  Receives a pointer to the destination scene. If the
+     *    pointer doesn't point to NULL when the function is called, the
+     *    existing scene is cleared and refilled.
+     *  @param src Non-empty list of scenes to be merged. The function
+     *    deletes the input scenes afterwards. There may be duplicate scenes.
+     *  @param flags Combination of the AI_INT_MERGE_SCENE flags defined above
+     */
+    static void MergeScenes(aiScene** dest,std::vector<aiScene*>& src,
+        unsigned int flags = 0);
+
+    // -------------------------------------------------------------------
+    /** Merges two or more scenes and attaches all scenes to a specific
+     *  position in the node graph of the master scene.
+     *
+     *  @param dest Receives a pointer to the destination scene. If the
+     *    pointer doesn't point to NULL when the function is called, the
+     *    existing scene is cleared and refilled.
+     *  @param master Master scene. It will be deleted afterwards. All
+     *    other scenes will be inserted in its node graph.
+     *  @param src Non-empty list of scenes to be merged along with their
+     *    corresponding attachment points in the master scene. The function
+     *    deletes the input scenes afterwards. There may be duplicate scenes.
+     *  @param flags Combination of the AI_INT_MERGE_SCENE flags defined above
+     */
+    static void MergeScenes(aiScene** dest, aiScene* master,
+        std::vector<AttachmentInfo>& src,
+        unsigned int flags = 0);
+
+    // -------------------------------------------------------------------
+    /** Merges two or more meshes
+     *
+     *  The meshes should have equal vertex formats. Only components
+     *  that are provided by ALL meshes will be present in the output mesh.
+     *  An exception is made for VColors - they are set to black. The
+     *  meshes should have the same material indices, too. The output
+     *  material index is always the material index of the first mesh.
+     *
+     *  @param dest Destination mesh. Must be empty.
+     *  @param flags Currently no parameters
+     *  @param begin First mesh to be processed
+     *  @param end Points to the mesh after the last mesh to be processed
+     */
+    static void MergeMeshes(aiMesh** dest,unsigned int flags,
+        std::vector<aiMesh*>::const_iterator begin,
+        std::vector<aiMesh*>::const_iterator end);
+
+    // -------------------------------------------------------------------
+    /** Merges two or more bones
+     *
+     *  @param out Mesh to receive the output bone list
+     *  @param flags Currently no parameters
+     *  @param begin First mesh to be processed
+     *  @param end Points to the mesh after the last mesh to be processed
+     */
+    static void MergeBones(aiMesh* out,std::vector<aiMesh*>::const_iterator it,
+        std::vector<aiMesh*>::const_iterator end);
+
+    // -------------------------------------------------------------------
+    /** Merges two or more materials
+     *
+     *  The materials should be complementary as much as possible. In case
+     *  of a property present in different materials, the first occurrence
+     *  is used.
+     *
+     *  @param dest Destination material. Must be empty.
+     *  @param begin First material to be processed
+     *  @param end Points to the material after the last material to be processed
+     */
+    static void MergeMaterials(aiMaterial** dest,
+        std::vector<aiMaterial*>::const_iterator begin,
+        std::vector<aiMaterial*>::const_iterator end);
+
+    // -------------------------------------------------------------------
+    /** Builds a list of uniquely named bones in a mesh list
+     *
+     *  @param asBones Receives the output list
+     *  @param it First mesh to be processed
+     *  @param end Last mesh to be processed
+     */
+    static void BuildUniqueBoneList(std::list<BoneWithHash>& asBones,
+        std::vector<aiMesh*>::const_iterator it,
+        std::vector<aiMesh*>::const_iterator end);
+
+    // -------------------------------------------------------------------
+    /** Add a name prefix to all nodes in a scene.
+     *
+     *  @param Current node. This function is called recursively.
+     *  @param prefix Prefix to be added to all nodes
+     *  @param len STring length
+     */
+    static void AddNodePrefixes(aiNode* node, const char* prefix,
+        unsigned int len);
+
+    // -------------------------------------------------------------------
+    /** Add an offset to all mesh indices in a node graph
+     *
+     *  @param Current node. This function is called recursively.
+     *  @param offset Offset to be added to all mesh indices
+     */
+    static void OffsetNodeMeshIndices (aiNode* node, unsigned int offset);
+
+    // -------------------------------------------------------------------
+    /** Attach a list of node graphs to well-defined nodes in a master
+     *  graph. This is a helper for MergeScenes()
+     *
+     *  @param master Master scene
+     *  @param srcList List of source scenes along with their attachment
+     *    points. If an attachment point is NULL (or does not exist in
+     *    the master graph), a scene is attached to the root of the master
+     *    graph (as an additional child node)
+     *  @duplicates List of duplicates. If elem[n] == n the scene is not
+     *    a duplicate. Otherwise elem[n] links scene n to its first occurrence.
+     */
+    static void AttachToGraph ( aiScene* master,
+        std::vector<NodeAttachmentInfo>& srcList);
+
+    static void AttachToGraph (aiNode* attach,
+        std::vector<NodeAttachmentInfo>& srcList);
+
+
+    // -------------------------------------------------------------------
+    /** Get a deep copy of a scene
+     *
+     *  @param dest Receives a pointer to the destination scene
+     *  @param src Source scene - remains unmodified.
+     */
+    static void CopyScene(aiScene** dest,const aiScene* source,bool allocate = true);
+
+
+    // -------------------------------------------------------------------
+    /** Get a flat copy of a scene
+     *
+     *  Only the first hierarchy layer is copied. All pointer members of
+     *  aiScene are shared by source and destination scene.  If the
+     *    pointer doesn't point to NULL when the function is called, the
+     *    existing scene is cleared and refilled.
+     *  @param dest Receives a pointer to the destination scene
+     *  @param src Source scene - remains unmodified.
+     */
+    static void CopySceneFlat(aiScene** dest,const aiScene* source);
+
+
+    // -------------------------------------------------------------------
+    /** Get a deep copy of a mesh
+     *
+     *  @param dest Receives a pointer to the destination mesh
+     *  @param src Source mesh - remains unmodified.
+     */
+    static void Copy     (aiMesh** dest, const aiMesh* src);
+
+    // similar to Copy():
+    static void Copy  (aiMaterial** dest, const aiMaterial* src);
+    static void Copy  (aiTexture** dest, const aiTexture* src);
+    static void Copy  (aiAnimation** dest, const aiAnimation* src);
+    static void Copy  (aiCamera** dest, const aiCamera* src);
+    static void Copy  (aiBone** dest, const aiBone* src);
+    static void Copy  (aiLight** dest, const aiLight* src);
+    static void Copy  (aiNodeAnim** dest, const aiNodeAnim* src);
+    static void Copy  (aiMetadata** dest, const aiMetadata* src);
+
+    // recursive, of course
+    static void Copy     (aiNode** dest, const aiNode* src);
+
+
+private:
+
+    // -------------------------------------------------------------------
+    // Same as AddNodePrefixes, but with an additional check
+    static void AddNodePrefixesChecked(aiNode* node, const char* prefix,
+        unsigned int len,
+        std::vector<SceneHelper>& input,
+        unsigned int cur);
+
+    // -------------------------------------------------------------------
+    // Add node identifiers to a hashing set
+    static void AddNodeHashes(aiNode* node, std::set<unsigned int>& hashes);
+
+
+    // -------------------------------------------------------------------
+    // Search for duplicate names
+    static bool FindNameMatch(const aiString& name,
+        std::vector<SceneHelper>& input, unsigned int cur);
+};
+
+}
+
+#endif // !! AI_SCENE_COMBINER_H_INC

hw3d/assimp/include/assimp/ai_assert.h

+/*
+---------------------------------------------------------------------------
+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.
+---------------------------------------------------------------------------
+*/
+#pragma once
+#ifndef AI_ASSERT_H_INC
+#define AI_ASSERT_H_INC
+
+#ifdef ASSIMP_BUILD_DEBUG
+#   include <assert.h>
+#   define  ai_assert(expression) assert(expression)
+#else
+#   define  ai_assert(expression)
+#endif // 
+
+#endif // AI_ASSERT_H_INC