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-rw-r--r--src/mesh/assimp-master/include/assimp/.editorconfig8
-rw-r--r--src/mesh/assimp-master/include/assimp/Base64.hpp68
-rw-r--r--src/mesh/assimp-master/include/assimp/BaseImporter.h396
-rw-r--r--src/mesh/assimp-master/include/assimp/Bitmap.h133
-rw-r--r--src/mesh/assimp-master/include/assimp/BlobIOSystem.h323
-rw-r--r--src/mesh/assimp-master/include/assimp/ByteSwapper.h292
-rw-r--r--src/mesh/assimp-master/include/assimp/ColladaMetaData.h56
-rw-r--r--src/mesh/assimp-master/include/assimp/Compiler/poppack1.h22
-rw-r--r--src/mesh/assimp-master/include/assimp/Compiler/pstdint.h912
-rw-r--r--src/mesh/assimp-master/include/assimp/Compiler/pushpack1.h43
-rw-r--r--src/mesh/assimp-master/include/assimp/CreateAnimMesh.h77
-rw-r--r--src/mesh/assimp-master/include/assimp/DefaultIOStream.h139
-rw-r--r--src/mesh/assimp-master/include/assimp/DefaultIOSystem.h99
-rw-r--r--src/mesh/assimp-master/include/assimp/DefaultLogger.hpp193
-rw-r--r--src/mesh/assimp-master/include/assimp/Exceptional.h182
-rw-r--r--src/mesh/assimp-master/include/assimp/Exporter.hpp509
-rw-r--r--src/mesh/assimp-master/include/assimp/GenericProperty.h133
-rw-r--r--src/mesh/assimp-master/include/assimp/GltfMaterial.h74
-rw-r--r--src/mesh/assimp-master/include/assimp/Hash.h126
-rw-r--r--src/mesh/assimp-master/include/assimp/IOStream.hpp144
-rw-r--r--src/mesh/assimp-master/include/assimp/IOStreamBuffer.h352
-rw-r--r--src/mesh/assimp-master/include/assimp/IOSystem.hpp344
-rw-r--r--src/mesh/assimp-master/include/assimp/Importer.hpp685
-rw-r--r--src/mesh/assimp-master/include/assimp/LineSplitter.h273
-rw-r--r--src/mesh/assimp-master/include/assimp/LogAux.h117
-rw-r--r--src/mesh/assimp-master/include/assimp/LogStream.hpp112
-rw-r--r--src/mesh/assimp-master/include/assimp/Logger.hpp305
-rw-r--r--src/mesh/assimp-master/include/assimp/MathFunctions.h105
-rw-r--r--src/mesh/assimp-master/include/assimp/MemoryIOWrapper.h250
-rw-r--r--src/mesh/assimp-master/include/assimp/NullLogger.hpp109
-rw-r--r--src/mesh/assimp-master/include/assimp/ObjMaterial.h84
-rw-r--r--src/mesh/assimp-master/include/assimp/ParsingUtils.h272
-rw-r--r--src/mesh/assimp-master/include/assimp/Profiler.h103
-rw-r--r--src/mesh/assimp-master/include/assimp/ProgressHandler.hpp150
-rw-r--r--src/mesh/assimp-master/include/assimp/RemoveComments.h93
-rw-r--r--src/mesh/assimp-master/include/assimp/SGSpatialSort.h155
-rw-r--r--src/mesh/assimp-master/include/assimp/SceneCombiner.h389
-rw-r--r--src/mesh/assimp-master/include/assimp/SkeletonMeshBuilder.h128
-rw-r--r--src/mesh/assimp-master/include/assimp/SmallVector.h164
-rw-r--r--src/mesh/assimp-master/include/assimp/SmoothingGroups.h114
-rw-r--r--src/mesh/assimp-master/include/assimp/SmoothingGroups.inl141
-rw-r--r--src/mesh/assimp-master/include/assimp/SpatialSort.h190
-rw-r--r--src/mesh/assimp-master/include/assimp/StandardShapes.h206
-rw-r--r--src/mesh/assimp-master/include/assimp/StreamReader.h344
-rw-r--r--src/mesh/assimp-master/include/assimp/StreamWriter.h307
-rw-r--r--src/mesh/assimp-master/include/assimp/StringComparison.h224
-rw-r--r--src/mesh/assimp-master/include/assimp/StringUtils.h279
-rw-r--r--src/mesh/assimp-master/include/assimp/Subdivision.h134
-rw-r--r--src/mesh/assimp-master/include/assimp/TinyFormatter.h181
-rw-r--r--src/mesh/assimp-master/include/assimp/Vertex.h299
-rw-r--r--src/mesh/assimp-master/include/assimp/XMLTools.h88
-rw-r--r--src/mesh/assimp-master/include/assimp/XmlParser.h493
-rw-r--r--src/mesh/assimp-master/include/assimp/ZipArchiveIOSystem.h94
-rw-r--r--src/mesh/assimp-master/include/assimp/aabb.h83
-rw-r--r--src/mesh/assimp-master/include/assimp/ai_assert.h74
-rw-r--r--src/mesh/assimp-master/include/assimp/anim.h554
-rw-r--r--src/mesh/assimp-master/include/assimp/camera.h234
-rw-r--r--src/mesh/assimp-master/include/assimp/cexport.h273
-rw-r--r--src/mesh/assimp-master/include/assimp/cfileio.h141
-rw-r--r--src/mesh/assimp-master/include/assimp/cimport.h1235
-rw-r--r--src/mesh/assimp-master/include/assimp/color4.h101
-rw-r--r--src/mesh/assimp-master/include/assimp/color4.inl249
-rw-r--r--src/mesh/assimp-master/include/assimp/commonMetaData.h69
-rw-r--r--src/mesh/assimp-master/include/assimp/config.h.in1129
-rw-r--r--src/mesh/assimp-master/include/assimp/defs.h336
-rw-r--r--src/mesh/assimp-master/include/assimp/fast_atof.h385
-rw-r--r--src/mesh/assimp-master/include/assimp/importerdesc.h154
-rw-r--r--src/mesh/assimp-master/include/assimp/light.h258
-rw-r--r--src/mesh/assimp-master/include/assimp/material.h1681
-rw-r--r--src/mesh/assimp-master/include/assimp/material.inl355
-rw-r--r--src/mesh/assimp-master/include/assimp/matrix3x3.h178
-rw-r--r--src/mesh/assimp-master/include/assimp/matrix3x3.inl359
-rw-r--r--src/mesh/assimp-master/include/assimp/matrix4x4.h276
-rw-r--r--src/mesh/assimp-master/include/assimp/matrix4x4.inl677
-rw-r--r--src/mesh/assimp-master/include/assimp/mesh.h943
-rw-r--r--src/mesh/assimp-master/include/assimp/metadata.h535
-rw-r--r--src/mesh/assimp-master/include/assimp/pbrmaterial.h89
-rw-r--r--src/mesh/assimp-master/include/assimp/port/AndroidJNI/AndroidJNIIOSystem.h88
-rw-r--r--src/mesh/assimp-master/include/assimp/port/AndroidJNI/BundledAssetIOSystem.h93
-rw-r--r--src/mesh/assimp-master/include/assimp/postprocess.h708
-rw-r--r--src/mesh/assimp-master/include/assimp/qnan.h162
-rw-r--r--src/mesh/assimp-master/include/assimp/quaternion.h138
-rw-r--r--src/mesh/assimp-master/include/assimp/quaternion.inl310
-rw-r--r--src/mesh/assimp-master/include/assimp/scene.h443
-rw-r--r--src/mesh/assimp-master/include/assimp/texture.h222
-rw-r--r--src/mesh/assimp-master/include/assimp/types.h538
-rw-r--r--src/mesh/assimp-master/include/assimp/vector2.h109
-rw-r--r--src/mesh/assimp-master/include/assimp/vector2.inl248
-rw-r--r--src/mesh/assimp-master/include/assimp/vector3.h167
-rw-r--r--src/mesh/assimp-master/include/assimp/vector3.inl284
-rw-r--r--src/mesh/assimp-master/include/assimp/version.h122
91 files changed, 25213 insertions, 0 deletions
diff --git a/src/mesh/assimp-master/include/assimp/.editorconfig b/src/mesh/assimp-master/include/assimp/.editorconfig
new file mode 100644
index 0000000..9ea6642
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/.editorconfig
@@ -0,0 +1,8 @@
+# See <http://EditorConfig.org> for details
+
+[*.{h,hpp,inl}]
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_size = 4
+indent_style = space
diff --git a/src/mesh/assimp-master/include/assimp/Base64.hpp b/src/mesh/assimp-master/include/assimp/Base64.hpp
new file mode 100644
index 0000000..ee319ac
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Base64.hpp
@@ -0,0 +1,68 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#pragma once
+#ifndef AI_BASE64_HPP_INC
+#define AI_BASE64_HPP_INC
+
+#include <stdint.h>
+#include <vector>
+#include <string>
+
+namespace Assimp {
+namespace Base64 {
+
+/// @brief Will encode the given
+/// @param in
+/// @param inLength
+/// @param out
+void Encode(const uint8_t *in, size_t inLength, std::string &out);
+void Encode(const std::vector<uint8_t>& in, std::string &out);
+std::string Encode(const std::vector<uint8_t>& in);
+
+size_t Decode(const char *in, size_t inLength, uint8_t *&out);
+size_t Decode(const std::string& in, std::vector<uint8_t>& out);
+std::vector<uint8_t> Decode(const std::string& in);
+
+} // namespace Base64
+} // namespace Assimp
+
+#endif // AI_BASE64_HPP_INC
diff --git a/src/mesh/assimp-master/include/assimp/BaseImporter.h b/src/mesh/assimp-master/include/assimp/BaseImporter.h
new file mode 100644
index 0000000..5a3c764
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/BaseImporter.h
@@ -0,0 +1,396 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/// @file Definition of the base class for all importer worker classes.
+
+#pragma once
+#ifndef INCLUDED_AI_BASEIMPORTER_H
+#define INCLUDED_AI_BASEIMPORTER_H
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include "Exceptional.h"
+
+#include <assimp/types.h>
+#include <assimp/ProgressHandler.hpp>
+#include <set>
+#include <vector>
+#include <memory>
+
+struct aiScene;
+struct aiImporterDesc;
+
+namespace Assimp {
+
+class Importer;
+class IOSystem;
+class BaseProcess;
+class SharedPostProcessInfo;
+class IOStream;
+
+// utility to do char4 to uint32 in a portable manner
+#define AI_MAKE_MAGIC(string) ((uint32_t)((string[0] << 24) + \
+ (string[1] << 16) + (string[2] << 8) + string[3]))
+
+// ---------------------------------------------------------------------------
+/** FOR IMPORTER PLUGINS ONLY: The BaseImporter defines a common interface
+ * for all importer worker classes.
+ *
+ * The interface defines two functions: CanRead() is used to check if the
+ * importer can handle the format of the given file. If an implementation of
+ * this function returns true, the importer then calls ReadFile() which
+ * imports the given file. ReadFile is not overridable, it just calls
+ * InternReadFile() and catches any ImportErrorException that might occur.
+ */
+class ASSIMP_API BaseImporter {
+ friend class Importer;
+
+public:
+ /** Constructor to be privately used by #Importer */
+ BaseImporter() AI_NO_EXCEPT;
+
+ /** Destructor, private as well */
+ virtual ~BaseImporter();
+
+ // -------------------------------------------------------------------
+ /** Returns whether the class can handle the format of the given file.
+ *
+ * The implementation is expected to perform a full check of the file
+ * structure, possibly searching the first bytes of the file for magic
+ * identifiers or keywords.
+ *
+ * @param pFile Path and file name of the file to be examined.
+ * @param pIOHandler The IO handler to use for accessing any file.
+ * @param checkSig Legacy; do not use.
+ * @return true if the class can read this file, false if not or if
+ * unsure.
+ */
+ virtual bool CanRead(
+ const std::string &pFile,
+ IOSystem *pIOHandler,
+ bool checkSig) const = 0;
+
+ // -------------------------------------------------------------------
+ /** Imports the given file and returns the imported data.
+ * If the import succeeds, ownership of the data is transferred to
+ * the caller. If the import fails, nullptr is returned. The function
+ * takes care that any partially constructed data is destroyed
+ * beforehand.
+ *
+ * @param pImp #Importer object hosting this loader.
+ * @param pFile Path of the file to be imported.
+ * @param pIOHandler IO-Handler used to open this and possible other files.
+ * @return The imported data or nullptr if failed. If it failed a
+ * human-readable error description can be retrieved by calling
+ * GetErrorText()
+ *
+ * @note This function is not intended to be overridden. Implement
+ * InternReadFile() to do the import. If an exception is thrown somewhere
+ * in InternReadFile(), this function will catch it and transform it into
+ * a suitable response to the caller.
+ */
+ aiScene *ReadFile(
+ Importer *pImp,
+ const std::string &pFile,
+ IOSystem *pIOHandler);
+
+ // -------------------------------------------------------------------
+ /** Returns the error description of the last error that occurred.
+ * If the error is due to a std::exception, this will return the message.
+ * Exceptions can also be accessed with GetException().
+ * @return A description of the last error that occurred. An empty
+ * string if there was no error.
+ */
+ const std::string &GetErrorText() const {
+ return m_ErrorText;
+ }
+
+ // -------------------------------------------------------------------
+ /** Returns the exception of the last exception that occurred.
+ * Note: Exceptions are not the only source of error details, so GetErrorText
+ * should be consulted too.
+ * @return The last exception that occurred.
+ */
+ const std::exception_ptr& GetException() const {
+ return m_Exception;
+ }
+
+ // -------------------------------------------------------------------
+ /** Called prior to ReadFile().
+ * The function is a request to the importer to update its configuration
+ * basing on the Importer's configuration property list.
+ * @param pImp Importer instance
+ */
+ virtual void SetupProperties(
+ const Importer *pImp);
+
+ // -------------------------------------------------------------------
+ /** Called by #Importer::GetImporterInfo to get a description of
+ * some loader features. Importers must provide this information. */
+ virtual const aiImporterDesc *GetInfo() const = 0;
+
+ /**
+ * Will be called only by scale process when scaling is requested.
+ */
+ void SetFileScale(double scale) {
+ fileScale = scale;
+ }
+
+ // -------------------------------------------------------------------
+ /** Called by #Importer::GetExtensionList for each loaded importer.
+ * Take the extension list contained in the structure returned by
+ * #GetInfo and insert all file extensions into the given set.
+ * @param extension set to collect file extensions in*/
+ void GetExtensionList(std::set<std::string> &extensions);
+
+protected:
+ double importerScale = 1.0;
+ double fileScale = 1.0;
+
+ // -------------------------------------------------------------------
+ /** Imports the given file into the given scene structure. The
+ * function is expected to throw an ImportErrorException if there is
+ * an error. If it terminates normally, the data in aiScene is
+ * expected to be correct. Override this function to implement the
+ * actual importing.
+ * <br>
+ * The output scene must meet the following requirements:<br>
+ * <ul>
+ * <li>At least a root node must be there, even if its only purpose
+ * is to reference one mesh.</li>
+ * <li>aiMesh::mPrimitiveTypes may be 0. The types of primitives
+ * in the mesh are determined automatically in this case.</li>
+ * <li>the vertex data is stored in a pseudo-indexed "verbose" format.
+ * In fact this means that every vertex that is referenced by
+ * a face is unique. Or the other way round: a vertex index may
+ * not occur twice in a single aiMesh.</li>
+ * <li>aiAnimation::mDuration may be -1. Assimp determines the length
+ * of the animation automatically in this case as the length of
+ * the longest animation channel.</li>
+ * <li>aiMesh::mBitangents may be nullptr if tangents and normals are
+ * given. In this case bitangents are computed as the cross product
+ * between normal and tangent.</li>
+ * <li>There needn't be a material. If none is there a default material
+ * is generated. However, it is recommended practice for loaders
+ * to generate a default material for yourself that matches the
+ * default material setting for the file format better than Assimp's
+ * generic default material. Note that default materials *should*
+ * be named AI_DEFAULT_MATERIAL_NAME if they're just color-shaded
+ * or AI_DEFAULT_TEXTURED_MATERIAL_NAME if they define a (dummy)
+ * texture. </li>
+ * </ul>
+ * If the AI_SCENE_FLAGS_INCOMPLETE-Flag is <b>not</b> set:<ul>
+ * <li> at least one mesh must be there</li>
+ * <li> there may be no meshes with 0 vertices or faces</li>
+ * </ul>
+ * This won't be checked (except by the validation step): Assimp will
+ * crash if one of the conditions is not met!
+ *
+ * @param pFile Path of the file to be imported.
+ * @param pScene The scene object to hold the imported data.
+ * nullptr is not a valid parameter.
+ * @param pIOHandler The IO handler to use for any file access.
+ * nullptr is not a valid parameter. */
+ virtual void InternReadFile(
+ const std::string &pFile,
+ aiScene *pScene,
+ IOSystem *pIOHandler) = 0;
+
+public: // static utilities
+ // -------------------------------------------------------------------
+ /** A utility for CanRead().
+ *
+ * The function searches the header of a file for a specific token
+ * and returns true if this token is found. This works for text
+ * files only. There is a rudimentary handling of UNICODE files.
+ * The comparison is case independent.
+ *
+ * @param pIOSystem IO System to work with
+ * @param file File name of the file
+ * @param tokens List of tokens to search for
+ * @param numTokens Size of the token array
+ * @param searchBytes Number of bytes to be searched for the tokens.
+ */
+ static bool SearchFileHeaderForToken(
+ IOSystem *pIOSystem,
+ const std::string &file,
+ const char **tokens,
+ std::size_t numTokens,
+ unsigned int searchBytes = 200,
+ bool tokensSol = false,
+ bool noAlphaBeforeTokens = false);
+
+ // -------------------------------------------------------------------
+ /** @brief Check whether a file has a specific file extension
+ * @param pFile Input file
+ * @param ext0 Extension to check for. Lowercase characters only, no dot!
+ * @param ext1 Optional second extension
+ * @param ext2 Optional third extension
+ * @note Case-insensitive
+ */
+ static bool SimpleExtensionCheck(
+ const std::string &pFile,
+ const char *ext0,
+ const char *ext1 = nullptr,
+ const char *ext2 = nullptr);
+
+ // -------------------------------------------------------------------
+ /** @brief Extract file extension from a string
+ * @param pFile Input file
+ * @return Extension without trailing dot, all lowercase
+ */
+ static std::string GetExtension(
+ const std::string &pFile);
+
+ // -------------------------------------------------------------------
+ /** @brief Check whether a file starts with one or more magic tokens
+ * @param pFile Input file
+ * @param pIOHandler IO system to be used
+ * @param magic n magic tokens
+ * @params num Size of magic
+ * @param offset Offset from file start where tokens are located
+ * @param Size of one token, in bytes. Maximally 16 bytes.
+ * @return true if one of the given tokens was found
+ *
+ * @note For convenience, the check is also performed for the
+ * byte-swapped variant of all tokens (big endian). Only for
+ * tokens of size 2,4.
+ */
+ static bool CheckMagicToken(
+ IOSystem *pIOHandler,
+ const std::string &pFile,
+ const void *magic,
+ std::size_t num,
+ unsigned int offset = 0,
+ unsigned int size = 4);
+
+ // -------------------------------------------------------------------
+ /** An utility for all text file loaders. It converts a file to our
+ * UTF8 character set. Errors are reported, but ignored.
+ *
+ * @param data File buffer to be converted to UTF8 data. The buffer
+ * is resized as appropriate. */
+ static void ConvertToUTF8(
+ std::vector<char> &data);
+
+ // -------------------------------------------------------------------
+ /** An utility for all text file loaders. It converts a file from our
+ * UTF8 character set back to ISO-8859-1. Errors are reported, but ignored.
+ *
+ * @param data File buffer to be converted from UTF8 to ISO-8859-1. The buffer
+ * is resized as appropriate. */
+ static void ConvertUTF8toISO8859_1(
+ std::string &data);
+
+ // -------------------------------------------------------------------
+ /// @brief Enum to define, if empty files are ok or not.
+ enum TextFileMode {
+ ALLOW_EMPTY,
+ FORBID_EMPTY
+ };
+
+ // -------------------------------------------------------------------
+ /** Utility for text file loaders which copies the contents of the
+ * file into a memory buffer and converts it to our UTF8
+ * representation.
+ * @param stream Stream to read from.
+ * @param data Output buffer to be resized and filled with the
+ * converted text file data. The buffer is terminated with
+ * a binary 0.
+ * @param mode Whether it is OK to load empty text files. */
+ static void TextFileToBuffer(
+ IOStream *stream,
+ std::vector<char> &data,
+ TextFileMode mode = FORBID_EMPTY);
+
+ // -------------------------------------------------------------------
+ /** Utility function to move a std::vector into a aiScene array
+ * @param vec The vector to be moved
+ * @param out The output pointer to the allocated array.
+ * @param numOut The output count of elements copied. */
+ template <typename T>
+ AI_FORCE_INLINE static void CopyVector(
+ std::vector<T> &vec,
+ T *&out,
+ unsigned int &outLength) {
+ outLength = unsigned(vec.size());
+ if (outLength) {
+ out = new T[outLength];
+ std::swap_ranges(vec.begin(), vec.end(), out);
+ }
+ }
+
+ // -------------------------------------------------------------------
+ /** Utility function to move a std::vector of unique_ptrs into a aiScene array
+ * @param vec The vector of unique_ptrs to be moved
+ * @param out The output pointer to the allocated array.
+ * @param numOut The output count of elements copied. */
+ template <typename T>
+ AI_FORCE_INLINE static void CopyVector(
+ std::vector<std::unique_ptr<T> > &vec,
+ T **&out,
+ unsigned int &outLength) {
+ outLength = unsigned(vec.size());
+ if (outLength) {
+ out = new T*[outLength];
+ T** outPtr = out;
+ std::for_each(vec.begin(), vec.end(), [&outPtr](std::unique_ptr<T>& uPtr){*outPtr = uPtr.release(); ++outPtr; });
+ }
+ }
+
+private:
+ /* Pushes state into importer for the importer scale */
+ void UpdateImporterScale(Importer *pImp);
+
+protected:
+ /// Error description in case there was one.
+ std::string m_ErrorText;
+ /// The exception, in case there was one.
+ std::exception_ptr m_Exception;
+ /// Currently set progress handler.
+ ProgressHandler *m_progress;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_BASEIMPORTER_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/Bitmap.h b/src/mesh/assimp-master/include/assimp/Bitmap.h
new file mode 100644
index 0000000..6a614f7
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Bitmap.h
@@ -0,0 +1,133 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Bitmap.h
+ * @brief Defines bitmap format helper for textures
+ *
+ * Used for file formats which embed their textures into the model file.
+ */
+#pragma once
+#ifndef AI_BITMAP_H_INC
+#define AI_BITMAP_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include "defs.h"
+#include <cstdint>
+#include <cstddef>
+
+struct aiTexture;
+
+namespace Assimp {
+
+class IOStream;
+
+// ---------------------------------------------------------------------------
+/**
+ * This class is used to store and write bitmap information.
+ */
+class ASSIMP_API Bitmap {
+protected:
+
+ struct Header {
+ uint16_t type;
+ uint32_t size;
+ uint16_t reserved1;
+ uint16_t reserved2;
+ uint32_t offset;
+
+ // We define the struct size because sizeof(Header) might return a wrong result because of structure padding.
+ static constexpr std::size_t header_size =
+ sizeof(type) +
+ sizeof(size) +
+ sizeof(reserved1) +
+ sizeof(reserved2) +
+ sizeof(offset);
+ };
+
+ struct DIB {
+ uint32_t size;
+ int32_t width;
+ int32_t height;
+ uint16_t planes;
+ uint16_t bits_per_pixel;
+ uint32_t compression;
+ uint32_t image_size;
+ int32_t x_resolution;
+ int32_t y_resolution;
+ uint32_t nb_colors;
+ uint32_t nb_important_colors;
+
+ // We define the struct size because sizeof(DIB) might return a wrong result because of structure padding.
+ static constexpr std::size_t dib_size =
+ sizeof(size) +
+ sizeof(width) +
+ sizeof(height) +
+ sizeof(planes) +
+ sizeof(bits_per_pixel) +
+ sizeof(compression) +
+ sizeof(image_size) +
+ sizeof(x_resolution) +
+ sizeof(y_resolution) +
+ sizeof(nb_colors) +
+ sizeof(nb_important_colors);
+ };
+
+ static constexpr std::size_t mBytesPerPixel = 4;
+
+public:
+ /// @brief Will save an aiTexture instance as a bitmap.
+ /// @param texture The pointer to the texture instance
+ /// @param file The filename to save into.
+ /// @return true if successfully saved, false if not.
+ static bool Save(aiTexture* texture, IOStream* file);
+
+protected:
+ static void WriteHeader(Header& header, IOStream* file);
+ static void WriteDIB(DIB& dib, IOStream* file);
+ static void WriteData(aiTexture* texture, IOStream* file);
+};
+
+}
+
+#endif // AI_BITMAP_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/BlobIOSystem.h b/src/mesh/assimp-master/include/assimp/BlobIOSystem.h
new file mode 100644
index 0000000..7e8d46a
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/BlobIOSystem.h
@@ -0,0 +1,323 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Provides cheat implementations for IOSystem and IOStream to
+ * redirect exporter output to a blob chain.*/
+
+#pragma once
+#ifndef AI_BLOBIOSYSTEM_H_INCLUDED
+#define AI_BLOBIOSYSTEM_H_INCLUDED
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/cexport.h>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/IOStream.hpp>
+#include <assimp/IOSystem.hpp>
+#include <cstdint>
+#include <set>
+#include <vector>
+
+namespace Assimp {
+class BlobIOSystem;
+
+// --------------------------------------------------------------------------------------------
+/** Redirect IOStream to a blob */
+// --------------------------------------------------------------------------------------------
+class BlobIOStream : public IOStream {
+public:
+ /// @brief The class constructor with all needed parameters
+ /// @param creator Pointer to the creator instance
+ /// @param file The filename
+ /// @param initial The initial size
+ BlobIOStream(BlobIOSystem *creator, const std::string &file, size_t initial = 4096) :
+ buffer(),
+ cur_size(),
+ file_size(),
+ cursor(),
+ initial(initial),
+ file(file),
+ creator(creator) {
+ // empty
+ }
+
+ /// @brief The class destructor.
+ ~BlobIOStream() override;
+
+public:
+ // -------------------------------------------------------------------
+ aiExportDataBlob *GetBlob() {
+ aiExportDataBlob *blob = new aiExportDataBlob();
+ blob->size = file_size;
+ blob->data = buffer;
+
+ buffer = nullptr;
+
+ return blob;
+ }
+
+ // -------------------------------------------------------------------
+ size_t Read(void *, size_t, size_t) override {
+ return 0;
+ }
+
+ // -------------------------------------------------------------------
+ size_t Write(const void *pvBuffer, size_t pSize, size_t pCount) override {
+ pSize *= pCount;
+ if (cursor + pSize > cur_size) {
+ Grow(cursor + pSize);
+ }
+
+ memcpy(buffer + cursor, pvBuffer, pSize);
+ cursor += pSize;
+
+ file_size = std::max(file_size, cursor);
+ return pCount;
+ }
+
+ // -------------------------------------------------------------------
+ aiReturn Seek(size_t pOffset, aiOrigin pOrigin) override {
+ switch (pOrigin) {
+ case aiOrigin_CUR:
+ cursor += pOffset;
+ break;
+
+ case aiOrigin_END:
+ cursor = file_size - pOffset;
+ break;
+
+ case aiOrigin_SET:
+ cursor = pOffset;
+ break;
+
+ default:
+ return AI_FAILURE;
+ }
+
+ if (cursor > file_size) {
+ Grow(cursor);
+ }
+
+ file_size = std::max(cursor, file_size);
+
+ return AI_SUCCESS;
+ }
+
+ // -------------------------------------------------------------------
+ size_t Tell() const override {
+ return cursor;
+ }
+
+ // -------------------------------------------------------------------
+ size_t FileSize() const override {
+ return file_size;
+ }
+
+ // -------------------------------------------------------------------
+ void Flush() override {
+ // ignore
+ }
+
+private:
+ // -------------------------------------------------------------------
+ void Grow(size_t need = 0) {
+ // 1.5 and phi are very heap-friendly growth factors (the first
+ // allows for frequent re-use of heap blocks, the second
+ // forms a fibonacci sequence with similar characteristics -
+ // since this heavily depends on the heap implementation
+ // and other factors as well, i'll just go with 1.5 since
+ // it is quicker to compute).
+ size_t new_size = std::max(initial, std::max(need, cur_size + (cur_size >> 1)));
+
+ const uint8_t *const old = buffer;
+ buffer = new uint8_t[new_size];
+
+ if (old) {
+ memcpy(buffer, old, cur_size);
+ delete[] old;
+ }
+
+ cur_size = new_size;
+ }
+
+private:
+ uint8_t *buffer;
+ size_t cur_size, file_size, cursor, initial;
+
+ const std::string file;
+ BlobIOSystem *const creator;
+};
+
+#define AI_BLOBIO_MAGIC "$blobfile"
+
+// --------------------------------------------------------------------------------------------
+/** Redirect IOSystem to a blob */
+// --------------------------------------------------------------------------------------------
+class BlobIOSystem : public IOSystem {
+
+ friend class BlobIOStream;
+ typedef std::pair<std::string, aiExportDataBlob *> BlobEntry;
+
+
+public:
+ /// @brief The default class constructor.
+ BlobIOSystem() :
+ baseName{AI_BLOBIO_MAGIC} {
+ }
+
+ /// @brief The class constructor with the base name.
+ /// @param baseName The base name.
+ BlobIOSystem(const std::string &baseName) :
+ baseName(baseName) {
+ // empty
+ }
+
+ ~BlobIOSystem() override {
+ for (BlobEntry &blobby : blobs) {
+ delete blobby.second;
+ }
+ }
+
+public:
+ // -------------------------------------------------------------------
+ const char *GetMagicFileName() const {
+ return baseName.c_str();
+ }
+
+ // -------------------------------------------------------------------
+ aiExportDataBlob *GetBlobChain() {
+ const auto magicName = std::string(this->GetMagicFileName());
+ const bool hasBaseName = baseName != AI_BLOBIO_MAGIC;
+
+ // one must be the master
+ aiExportDataBlob *master = nullptr, *cur;
+
+ for (const BlobEntry &blobby : blobs) {
+ if (blobby.first == magicName) {
+ master = blobby.second;
+ master->name.Set(hasBaseName ? blobby.first : "");
+ break;
+ }
+ }
+
+ if (!master) {
+ ASSIMP_LOG_ERROR("BlobIOSystem: no data written or master file was not closed properly.");
+ return nullptr;
+ }
+
+ cur = master;
+
+ for (const BlobEntry &blobby : blobs) {
+ if (blobby.second == master) {
+ continue;
+ }
+
+ cur->next = blobby.second;
+ cur = cur->next;
+
+ if (hasBaseName) {
+ cur->name.Set(blobby.first);
+ } else {
+ // extract the file extension from the file written
+ const std::string::size_type s = blobby.first.find_first_of('.');
+ cur->name.Set(s == std::string::npos ? blobby.first : blobby.first.substr(s + 1));
+ }
+ }
+
+ // give up blob ownership
+ blobs.clear();
+ return master;
+ }
+
+public:
+ // -------------------------------------------------------------------
+ bool Exists(const char *pFile) const override {
+ return created.find(std::string(pFile)) != created.end();
+ }
+
+ // -------------------------------------------------------------------
+ char getOsSeparator() const override {
+ return '/';
+ }
+
+ // -------------------------------------------------------------------
+ IOStream *Open(const char *pFile, const char *pMode) override {
+ if (pMode[0] != 'w') {
+ return nullptr;
+ }
+
+ created.insert(std::string(pFile));
+ return new BlobIOStream(this, std::string(pFile));
+ }
+
+ // -------------------------------------------------------------------
+ void Close(IOStream *pFile) override {
+ delete pFile;
+ }
+
+private:
+ // -------------------------------------------------------------------
+ void OnDestruct(const std::string &filename, BlobIOStream *child) {
+ // we don't know in which the files are closed, so we
+ // can't reliably say that the first must be the master
+ // file ...
+ blobs.emplace_back(filename, child->GetBlob());
+ }
+
+private:
+ std::string baseName;
+ std::set<std::string> created;
+ std::vector<BlobEntry> blobs;
+};
+
+// --------------------------------------------------------------------------------------------
+BlobIOStream::~BlobIOStream() {
+ if (nullptr != creator) {
+ creator->OnDestruct(file, this);
+ }
+ delete[] buffer;
+}
+
+} // namespace Assimp
+
+#endif
diff --git a/src/mesh/assimp-master/include/assimp/ByteSwapper.h b/src/mesh/assimp-master/include/assimp/ByteSwapper.h
new file mode 100644
index 0000000..488f7a5
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/ByteSwapper.h
@@ -0,0 +1,292 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Helper class tp perform various byte order swappings
+ (e.g. little to big endian) */
+#pragma once
+#ifndef AI_BYTESWAPPER_H_INC
+#define AI_BYTESWAPPER_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/ai_assert.h>
+#include <assimp/types.h>
+#include <cstdint>
+
+#if _MSC_VER >= 1400
+#include <cstdlib>
+#endif
+
+namespace Assimp {
+// --------------------------------------------------------------------------------------
+/** Defines some useful byte order swap routines.
+ *
+ * This is required to read big-endian model formats on little-endian machines,
+ * and vice versa. Direct use of this class is DEPRECATED. Use #StreamReader instead. */
+// --------------------------------------------------------------------------------------
+class ByteSwap {
+ ByteSwap() AI_NO_EXCEPT {}
+
+public:
+
+ // ----------------------------------------------------------------------
+ /** Swap two bytes of data
+ * @param[inout] _szOut A void* to save the reintcasts for the caller. */
+ static inline void Swap2(void* _szOut)
+ {
+ ai_assert(_szOut);
+
+#if _MSC_VER >= 1400
+ uint16_t* const szOut = reinterpret_cast<uint16_t*>(_szOut);
+ *szOut = _byteswap_ushort(*szOut);
+#else
+ uint8_t* const szOut = reinterpret_cast<uint8_t*>(_szOut);
+ std::swap(szOut[0],szOut[1]);
+#endif
+ }
+
+ // ----------------------------------------------------------------------
+ /** Swap four bytes of data
+ * @param[inout] _szOut A void* to save the reintcasts for the caller. */
+ static inline void Swap4(void* _szOut)
+ {
+ ai_assert(_szOut);
+
+#if _MSC_VER >= 1400
+ uint32_t* const szOut = reinterpret_cast<uint32_t*>(_szOut);
+ *szOut = _byteswap_ulong(*szOut);
+#else
+ uint8_t* const szOut = reinterpret_cast<uint8_t*>(_szOut);
+ std::swap(szOut[0],szOut[3]);
+ std::swap(szOut[1],szOut[2]);
+#endif
+ }
+
+ // ----------------------------------------------------------------------
+ /** Swap eight bytes of data
+ * @param[inout] _szOut A void* to save the reintcasts for the caller. */
+ static inline void Swap8(void* _szOut)
+ {
+ ai_assert(_szOut);
+
+#if _MSC_VER >= 1400
+ uint64_t* const szOut = reinterpret_cast<uint64_t*>(_szOut);
+ *szOut = _byteswap_uint64(*szOut);
+#else
+ uint8_t* const szOut = reinterpret_cast<uint8_t*>(_szOut);
+ std::swap(szOut[0],szOut[7]);
+ std::swap(szOut[1],szOut[6]);
+ std::swap(szOut[2],szOut[5]);
+ std::swap(szOut[3],szOut[4]);
+#endif
+ }
+
+ // ----------------------------------------------------------------------
+ /** ByteSwap a float. Not a joke.
+ * @param[inout] fOut ehm. .. */
+ static inline void Swap(float* fOut) {
+ Swap4(fOut);
+ }
+
+ // ----------------------------------------------------------------------
+ /** ByteSwap a double. Not a joke.
+ * @param[inout] fOut ehm. .. */
+ static inline void Swap(double* fOut) {
+ Swap8(fOut);
+ }
+
+
+ // ----------------------------------------------------------------------
+ /** ByteSwap an int16t. Not a joke.
+ * @param[inout] fOut ehm. .. */
+ static inline void Swap(int16_t* fOut) {
+ Swap2(fOut);
+ }
+
+ static inline void Swap(uint16_t* fOut) {
+ Swap2(fOut);
+ }
+
+ // ----------------------------------------------------------------------
+ /** ByteSwap an int32t. Not a joke.
+ * @param[inout] fOut ehm. .. */
+ static inline void Swap(int32_t* fOut){
+ Swap4(fOut);
+ }
+
+ static inline void Swap(uint32_t* fOut){
+ Swap4(fOut);
+ }
+
+ // ----------------------------------------------------------------------
+ /** ByteSwap an int64t. Not a joke.
+ * @param[inout] fOut ehm. .. */
+ static inline void Swap(int64_t* fOut) {
+ Swap8(fOut);
+ }
+
+ static inline void Swap(uint64_t* fOut) {
+ Swap8(fOut);
+ }
+
+ // ----------------------------------------------------------------------
+ //! Templatized ByteSwap
+ //! \returns param tOut as swapped
+ template<typename Type>
+ static inline Type Swapped(Type tOut)
+ {
+ return _swapper<Type,sizeof(Type)>()(tOut);
+ }
+
+private:
+
+ template <typename T, size_t size> struct _swapper;
+};
+
+template <typename T> struct ByteSwap::_swapper<T,2> {
+ T operator() (T tOut) {
+ Swap2(&tOut);
+ return tOut;
+ }
+};
+
+template <typename T> struct ByteSwap::_swapper<T,4> {
+ T operator() (T tOut) {
+ Swap4(&tOut);
+ return tOut;
+ }
+};
+
+template <typename T> struct ByteSwap::_swapper<T,8> {
+ T operator() (T tOut) {
+ Swap8(&tOut);
+ return tOut;
+ }
+};
+
+
+// --------------------------------------------------------------------------------------
+// ByteSwap macros for BigEndian/LittleEndian support
+// --------------------------------------------------------------------------------------
+#if (defined AI_BUILD_BIG_ENDIAN)
+# define AI_LE(t) (t)
+# define AI_BE(t) Assimp::ByteSwap::Swapped(t)
+# define AI_LSWAP2(p)
+# define AI_LSWAP4(p)
+# define AI_LSWAP8(p)
+# define AI_LSWAP2P(p)
+# define AI_LSWAP4P(p)
+# define AI_LSWAP8P(p)
+# define LE_NCONST const
+# define AI_SWAP2(p) Assimp::ByteSwap::Swap2(&(p))
+# define AI_SWAP4(p) Assimp::ByteSwap::Swap4(&(p))
+# define AI_SWAP8(p) Assimp::ByteSwap::Swap8(&(p))
+# define AI_SWAP2P(p) Assimp::ByteSwap::Swap2((p))
+# define AI_SWAP4P(p) Assimp::ByteSwap::Swap4((p))
+# define AI_SWAP8P(p) Assimp::ByteSwap::Swap8((p))
+# define BE_NCONST
+#else
+# define AI_BE(t) (t)
+# define AI_LE(t) Assimp::ByteSwap::Swapped(t)
+# define AI_SWAP2(p)
+# define AI_SWAP4(p)
+# define AI_SWAP8(p)
+# define AI_SWAP2P(p)
+# define AI_SWAP4P(p)
+# define AI_SWAP8P(p)
+# define BE_NCONST const
+# define AI_LSWAP2(p) Assimp::ByteSwap::Swap2(&(p))
+# define AI_LSWAP4(p) Assimp::ByteSwap::Swap4(&(p))
+# define AI_LSWAP8(p) Assimp::ByteSwap::Swap8(&(p))
+# define AI_LSWAP2P(p) Assimp::ByteSwap::Swap2((p))
+# define AI_LSWAP4P(p) Assimp::ByteSwap::Swap4((p))
+# define AI_LSWAP8P(p) Assimp::ByteSwap::Swap8((p))
+# define LE_NCONST
+#endif
+
+
+namespace Intern {
+
+// --------------------------------------------------------------------------------------------
+template <typename T, bool doit>
+struct ByteSwapper {
+ void operator() (T* inout) {
+ ByteSwap::Swap(inout);
+ }
+};
+
+template <typename T>
+struct ByteSwapper<T,false> {
+ void operator() (T*) {
+ }
+};
+
+// --------------------------------------------------------------------------------------------
+template <bool SwapEndianess, typename T, bool RuntimeSwitch>
+struct Getter {
+ void operator() (T* inout, bool le) {
+#ifdef AI_BUILD_BIG_ENDIAN
+ le = le;
+#else
+ le = !le;
+#endif
+ if (le) {
+ ByteSwapper<T,(sizeof(T)>1?true:false)> () (inout);
+ }
+ else ByteSwapper<T,false> () (inout);
+ }
+};
+
+template <bool SwapEndianess, typename T>
+struct Getter<SwapEndianess,T,false> {
+
+ void operator() (T* inout, bool /*le*/) {
+ // static branch
+ ByteSwapper<T,(SwapEndianess && sizeof(T)>1)> () (inout);
+ }
+};
+} // end Intern
+} // end Assimp
+
+#endif //!! AI_BYTESWAPPER_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/ColladaMetaData.h b/src/mesh/assimp-master/include/assimp/ColladaMetaData.h
new file mode 100644
index 0000000..52eb3c5
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/ColladaMetaData.h
@@ -0,0 +1,56 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file ColladaMetaData.h
+ * Declares common metadata constants used by Collada files
+ */
+#pragma once
+#ifndef AI_COLLADAMETADATA_H_INC
+#define AI_COLLADAMETADATA_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#define AI_METADATA_COLLADA_ID "Collada_id"
+#define AI_METADATA_COLLADA_SID "Collada_sid"
+
+#endif
diff --git a/src/mesh/assimp-master/include/assimp/Compiler/poppack1.h b/src/mesh/assimp-master/include/assimp/Compiler/poppack1.h
new file mode 100644
index 0000000..ff501bc
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Compiler/poppack1.h
@@ -0,0 +1,22 @@
+
+// ===============================================================================
+// 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(__clang__)) || defined(__BORLANDC__) || defined (__BCPLUSPLUS__)
+# pragma pack( pop )
+#endif
+#undef PACK_STRUCT
+
+#undef AI_PUSHPACK_IS_DEFINED
diff --git a/src/mesh/assimp-master/include/assimp/Compiler/pstdint.h b/src/mesh/assimp-master/include/assimp/Compiler/pstdint.h
new file mode 100644
index 0000000..4de4ce2
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Compiler/pstdint.h
@@ -0,0 +1,912 @@
+/* A portable stdint.h
+ ****************************************************************************
+ * BSD License:
+ ****************************************************************************
+ *
+ * Copyright (c) 2005-2016 Paul Hsieh
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ *
+ ****************************************************************************
+ *
+ * Version 0.1.15.4
+ *
+ * The ANSI C standard committee, for the C99 standard, specified the
+ * inclusion of a new standard include file called stdint.h. This is
+ * a very useful and long desired include file which contains several
+ * very precise definitions for integer scalar types that is
+ * critically important for making portable several classes of
+ * applications including cryptography, hashing, variable length
+ * integer libraries and so on. But for most developers its likely
+ * useful just for programming sanity.
+ *
+ * The problem is that some compiler vendors chose to ignore the C99
+ * standard and some older compilers have no opportunity to be updated.
+ * Because of this situation, simply including stdint.h in your code
+ * makes it unportable.
+ *
+ * So that's what this file is all about. Its an attempt to build a
+ * single universal include file that works on as many platforms as
+ * possible to deliver what stdint.h is supposed to. Even compilers
+ * that already come with stdint.h can use this file instead without
+ * any loss of functionality. A few things that should be noted about
+ * this file:
+ *
+ * 1) It is not guaranteed to be portable and/or present an identical
+ * interface on all platforms. The extreme variability of the
+ * ANSI C standard makes this an impossibility right from the
+ * very get go. Its really only meant to be useful for the vast
+ * majority of platforms that possess the capability of
+ * implementing usefully and precisely defined, standard sized
+ * integer scalars. Systems which are not intrinsically 2s
+ * complement may produce invalid constants.
+ *
+ * 2) There is an unavoidable use of non-reserved symbols.
+ *
+ * 3) Other standard include files are invoked.
+ *
+ * 4) This file may come in conflict with future platforms that do
+ * include stdint.h. The hope is that one or the other can be
+ * used with no real difference.
+ *
+ * 5) In the current version, if your platform can't represent
+ * int32_t, int16_t and int8_t, it just dumps out with a compiler
+ * error.
+ *
+ * 6) 64 bit integers may or may not be defined. Test for their
+ * presence with the test: #ifdef INT64_MAX or #ifdef UINT64_MAX.
+ * Note that this is different from the C99 specification which
+ * requires the existence of 64 bit support in the compiler. If
+ * this is not defined for your platform, yet it is capable of
+ * dealing with 64 bits then it is because this file has not yet
+ * been extended to cover all of your system's capabilities.
+ *
+ * 7) (u)intptr_t may or may not be defined. Test for its presence
+ * with the test: #ifdef PTRDIFF_MAX. If this is not defined
+ * for your platform, then it is because this file has not yet
+ * been extended to cover all of your system's capabilities, not
+ * because its optional.
+ *
+ * 8) The following might not been defined even if your platform is
+ * capable of defining it:
+ *
+ * WCHAR_MIN
+ * WCHAR_MAX
+ * (u)int64_t
+ * PTRDIFF_MIN
+ * PTRDIFF_MAX
+ * (u)intptr_t
+ *
+ * 9) The following have not been defined:
+ *
+ * WINT_MIN
+ * WINT_MAX
+ *
+ * 10) The criteria for defining (u)int_least(*)_t isn't clear,
+ * except for systems which don't have a type that precisely
+ * defined 8, 16, or 32 bit types (which this include file does
+ * not support anyways). Default definitions have been given.
+ *
+ * 11) The criteria for defining (u)int_fast(*)_t isn't something I
+ * would trust to any particular compiler vendor or the ANSI C
+ * committee. It is well known that "compatible systems" are
+ * commonly created that have very different performance
+ * characteristics from the systems they are compatible with,
+ * especially those whose vendors make both the compiler and the
+ * system. Default definitions have been given, but its strongly
+ * recommended that users never use these definitions for any
+ * reason (they do *NOT* deliver any serious guarantee of
+ * improved performance -- not in this file, nor any vendor's
+ * stdint.h).
+ *
+ * 12) The following macros:
+ *
+ * PRINTF_INTMAX_MODIFIER
+ * PRINTF_INT64_MODIFIER
+ * PRINTF_INT32_MODIFIER
+ * PRINTF_INT16_MODIFIER
+ * PRINTF_LEAST64_MODIFIER
+ * PRINTF_LEAST32_MODIFIER
+ * PRINTF_LEAST16_MODIFIER
+ * PRINTF_INTPTR_MODIFIER
+ *
+ * are strings which have been defined as the modifiers required
+ * for the "d", "u" and "x" printf formats to correctly output
+ * (u)intmax_t, (u)int64_t, (u)int32_t, (u)int16_t, (u)least64_t,
+ * (u)least32_t, (u)least16_t and (u)intptr_t types respectively.
+ * PRINTF_INTPTR_MODIFIER is not defined for some systems which
+ * provide their own stdint.h. PRINTF_INT64_MODIFIER is not
+ * defined if INT64_MAX is not defined. These are an extension
+ * beyond what C99 specifies must be in stdint.h.
+ *
+ * In addition, the following macros are defined:
+ *
+ * PRINTF_INTMAX_HEX_WIDTH
+ * PRINTF_INT64_HEX_WIDTH
+ * PRINTF_INT32_HEX_WIDTH
+ * PRINTF_INT16_HEX_WIDTH
+ * PRINTF_INT8_HEX_WIDTH
+ * PRINTF_INTMAX_DEC_WIDTH
+ * PRINTF_INT64_DEC_WIDTH
+ * PRINTF_INT32_DEC_WIDTH
+ * PRINTF_INT16_DEC_WIDTH
+ * PRINTF_UINT8_DEC_WIDTH
+ * PRINTF_UINTMAX_DEC_WIDTH
+ * PRINTF_UINT64_DEC_WIDTH
+ * PRINTF_UINT32_DEC_WIDTH
+ * PRINTF_UINT16_DEC_WIDTH
+ * PRINTF_UINT8_DEC_WIDTH
+ *
+ * Which specifies the maximum number of characters required to
+ * print the number of that type in either hexadecimal or decimal.
+ * These are an extension beyond what C99 specifies must be in
+ * stdint.h.
+ *
+ * Compilers tested (all with 0 warnings at their highest respective
+ * settings): Borland Turbo C 2.0, WATCOM C/C++ 11.0 (16 bits and 32
+ * bits), Microsoft Visual C++ 6.0 (32 bit), Microsoft Visual Studio
+ * .net (VC7), Intel C++ 4.0, GNU gcc v3.3.3
+ *
+ * This file should be considered a work in progress. Suggestions for
+ * improvements, especially those which increase coverage are strongly
+ * encouraged.
+ *
+ * Acknowledgements
+ *
+ * The following people have made significant contributions to the
+ * development and testing of this file:
+ *
+ * Chris Howie
+ * John Steele Scott
+ * Dave Thorup
+ * John Dill
+ * Florian Wobbe
+ * Christopher Sean Morrison
+ * Mikkel Fahnoe Jorgensen
+ *
+ */
+
+#include <stddef.h>
+#include <limits.h>
+#include <signal.h>
+
+/*
+ * For gcc with _STDINT_H, fill in the PRINTF_INT*_MODIFIER macros, and
+ * do nothing else. On the Mac OS X version of gcc this is _STDINT_H_.
+ */
+
+#if ((defined(__SUNPRO_C) && __SUNPRO_C >= 0x570) || (defined(_MSC_VER) && _MSC_VER >= 1600) || (defined(__STDC__) && __STDC__ && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || (defined (__WATCOMC__) && (defined (_STDINT_H_INCLUDED) || __WATCOMC__ >= 1250)) || (defined(__GNUC__) && (__GNUC__ > 3 || defined(_STDINT_H) || defined(_STDINT_H_) || defined (__UINT_FAST64_TYPE__)) )) && !defined (_PSTDINT_H_INCLUDED)
+#include <stdint.h>
+#define _PSTDINT_H_INCLUDED
+# if defined(__GNUC__) && (defined(__x86_64__) || defined(__ppc64__)) && !(defined(__APPLE__) && defined(__MACH__))
+# ifndef PRINTF_INT64_MODIFIER
+# define PRINTF_INT64_MODIFIER "l"
+# endif
+# ifndef PRINTF_INT32_MODIFIER
+# define PRINTF_INT32_MODIFIER ""
+# endif
+# else
+# ifndef PRINTF_INT64_MODIFIER
+# define PRINTF_INT64_MODIFIER "ll"
+# endif
+# ifndef PRINTF_INT32_MODIFIER
+# if (UINT_MAX == UINT32_MAX)
+# define PRINTF_INT32_MODIFIER ""
+# else
+# define PRINTF_INT32_MODIFIER "l"
+# endif
+# endif
+# endif
+# ifndef PRINTF_INT16_MODIFIER
+# define PRINTF_INT16_MODIFIER "h"
+# endif
+# ifndef PRINTF_INTMAX_MODIFIER
+# define PRINTF_INTMAX_MODIFIER PRINTF_INT64_MODIFIER
+# endif
+# ifndef PRINTF_INT64_HEX_WIDTH
+# define PRINTF_INT64_HEX_WIDTH "16"
+# endif
+# ifndef PRINTF_UINT64_HEX_WIDTH
+# define PRINTF_UINT64_HEX_WIDTH "16"
+# endif
+# ifndef PRINTF_INT32_HEX_WIDTH
+# define PRINTF_INT32_HEX_WIDTH "8"
+# endif
+# ifndef PRINTF_UINT32_HEX_WIDTH
+# define PRINTF_UINT32_HEX_WIDTH "8"
+# endif
+# ifndef PRINTF_INT16_HEX_WIDTH
+# define PRINTF_INT16_HEX_WIDTH "4"
+# endif
+# ifndef PRINTF_UINT16_HEX_WIDTH
+# define PRINTF_UINT16_HEX_WIDTH "4"
+# endif
+# ifndef PRINTF_INT8_HEX_WIDTH
+# define PRINTF_INT8_HEX_WIDTH "2"
+# endif
+# ifndef PRINTF_UINT8_HEX_WIDTH
+# define PRINTF_UINT8_HEX_WIDTH "2"
+# endif
+# ifndef PRINTF_INT64_DEC_WIDTH
+# define PRINTF_INT64_DEC_WIDTH "19"
+# endif
+# ifndef PRINTF_UINT64_DEC_WIDTH
+# define PRINTF_UINT64_DEC_WIDTH "20"
+# endif
+# ifndef PRINTF_INT32_DEC_WIDTH
+# define PRINTF_INT32_DEC_WIDTH "10"
+# endif
+# ifndef PRINTF_UINT32_DEC_WIDTH
+# define PRINTF_UINT32_DEC_WIDTH "10"
+# endif
+# ifndef PRINTF_INT16_DEC_WIDTH
+# define PRINTF_INT16_DEC_WIDTH "5"
+# endif
+# ifndef PRINTF_UINT16_DEC_WIDTH
+# define PRINTF_UINT16_DEC_WIDTH "5"
+# endif
+# ifndef PRINTF_INT8_DEC_WIDTH
+# define PRINTF_INT8_DEC_WIDTH "3"
+# endif
+# ifndef PRINTF_UINT8_DEC_WIDTH
+# define PRINTF_UINT8_DEC_WIDTH "3"
+# endif
+# ifndef PRINTF_INTMAX_HEX_WIDTH
+# define PRINTF_INTMAX_HEX_WIDTH PRINTF_UINT64_HEX_WIDTH
+# endif
+# ifndef PRINTF_UINTMAX_HEX_WIDTH
+# define PRINTF_UINTMAX_HEX_WIDTH PRINTF_UINT64_HEX_WIDTH
+# endif
+# ifndef PRINTF_INTMAX_DEC_WIDTH
+# define PRINTF_INTMAX_DEC_WIDTH PRINTF_UINT64_DEC_WIDTH
+# endif
+# ifndef PRINTF_UINTMAX_DEC_WIDTH
+# define PRINTF_UINTMAX_DEC_WIDTH PRINTF_UINT64_DEC_WIDTH
+# endif
+
+/*
+ * Something really weird is going on with Open Watcom. Just pull some of
+ * these duplicated definitions from Open Watcom's stdint.h file for now.
+ */
+
+# if defined (__WATCOMC__) && __WATCOMC__ >= 1250
+# if !defined (INT64_C)
+# define INT64_C(x) (x + (INT64_MAX - INT64_MAX))
+# endif
+# if !defined (UINT64_C)
+# define UINT64_C(x) (x + (UINT64_MAX - UINT64_MAX))
+# endif
+# if !defined (INT32_C)
+# define INT32_C(x) (x + (INT32_MAX - INT32_MAX))
+# endif
+# if !defined (UINT32_C)
+# define UINT32_C(x) (x + (UINT32_MAX - UINT32_MAX))
+# endif
+# if !defined (INT16_C)
+# define INT16_C(x) (x)
+# endif
+# if !defined (UINT16_C)
+# define UINT16_C(x) (x)
+# endif
+# if !defined (INT8_C)
+# define INT8_C(x) (x)
+# endif
+# if !defined (UINT8_C)
+# define UINT8_C(x) (x)
+# endif
+# if !defined (UINT64_MAX)
+# define UINT64_MAX 18446744073709551615ULL
+# endif
+# if !defined (INT64_MAX)
+# define INT64_MAX 9223372036854775807LL
+# endif
+# if !defined (UINT32_MAX)
+# define UINT32_MAX 4294967295UL
+# endif
+# if !defined (INT32_MAX)
+# define INT32_MAX 2147483647L
+# endif
+# if !defined (INTMAX_MAX)
+# define INTMAX_MAX INT64_MAX
+# endif
+# if !defined (INTMAX_MIN)
+# define INTMAX_MIN INT64_MIN
+# endif
+# endif
+#endif
+
+/*
+ * I have no idea what is the truly correct thing to do on older Solaris.
+ * From some online discussions, this seems to be what is being
+ * recommended. For people who actually are developing on older Solaris,
+ * what I would like to know is, does this define all of the relevant
+ * macros of a complete stdint.h? Remember, in pstdint.h 64 bit is
+ * considered optional.
+ */
+
+#if (defined(__SUNPRO_C) && __SUNPRO_C >= 0x420) && !defined(_PSTDINT_H_INCLUDED)
+#include <sys/inttypes.h>
+#define _PSTDINT_H_INCLUDED
+#endif
+
+#ifndef _PSTDINT_H_INCLUDED
+#define _PSTDINT_H_INCLUDED
+
+#ifndef SIZE_MAX
+# define SIZE_MAX (~(size_t)0)
+#endif
+
+/*
+ * Deduce the type assignments from limits.h under the assumption that
+ * integer sizes in bits are powers of 2, and follow the ANSI
+ * definitions.
+ */
+
+#ifndef UINT8_MAX
+# define UINT8_MAX 0xff
+#endif
+#if !defined(uint8_t) && !defined(_UINT8_T) && !defined(vxWorks)
+# if (UCHAR_MAX == UINT8_MAX) || defined (S_SPLINT_S)
+ typedef unsigned char uint8_t;
+# define UINT8_C(v) ((uint8_t) v)
+# else
+# error "Platform not supported"
+# endif
+#endif
+
+#ifndef INT8_MAX
+# define INT8_MAX 0x7f
+#endif
+#ifndef INT8_MIN
+# define INT8_MIN INT8_C(0x80)
+#endif
+#if !defined(int8_t) && !defined(_INT8_T) && !defined(vxWorks)
+# if (SCHAR_MAX == INT8_MAX) || defined (S_SPLINT_S)
+ typedef signed char int8_t;
+# define INT8_C(v) ((int8_t) v)
+# else
+# error "Platform not supported"
+# endif
+#endif
+
+#ifndef UINT16_MAX
+# define UINT16_MAX 0xffff
+#endif
+#if !defined(uint16_t) && !defined(_UINT16_T) && !defined(vxWorks)
+#if (UINT_MAX == UINT16_MAX) || defined (S_SPLINT_S)
+ typedef unsigned int uint16_t;
+# ifndef PRINTF_INT16_MODIFIER
+# define PRINTF_INT16_MODIFIER ""
+# endif
+# define UINT16_C(v) ((uint16_t) (v))
+#elif (USHRT_MAX == UINT16_MAX)
+ typedef unsigned short uint16_t;
+# define UINT16_C(v) ((uint16_t) (v))
+# ifndef PRINTF_INT16_MODIFIER
+# define PRINTF_INT16_MODIFIER "h"
+# endif
+#else
+#error "Platform not supported"
+#endif
+#endif
+
+#ifndef INT16_MAX
+# define INT16_MAX 0x7fff
+#endif
+#ifndef INT16_MIN
+# define INT16_MIN INT16_C(0x8000)
+#endif
+#if !defined(int16_t) && !defined(_INT16_T) && !defined(vxWorks)
+#if (INT_MAX == INT16_MAX) || defined (S_SPLINT_S)
+ typedef signed int int16_t;
+# define INT16_C(v) ((int16_t) (v))
+# ifndef PRINTF_INT16_MODIFIER
+# define PRINTF_INT16_MODIFIER ""
+# endif
+#elif (SHRT_MAX == INT16_MAX)
+ typedef signed short int16_t;
+# define INT16_C(v) ((int16_t) (v))
+# ifndef PRINTF_INT16_MODIFIER
+# define PRINTF_INT16_MODIFIER "h"
+# endif
+#else
+#error "Platform not supported"
+#endif
+#endif
+
+#ifndef UINT32_MAX
+# define UINT32_MAX (0xffffffffUL)
+#endif
+#if !defined(uint32_t) && !defined(_UINT32_T) && !defined(vxWorks)
+#if (ULONG_MAX == UINT32_MAX) || defined (S_SPLINT_S)
+ typedef unsigned long uint32_t;
+# define UINT32_C(v) v ## UL
+# ifndef PRINTF_INT32_MODIFIER
+# define PRINTF_INT32_MODIFIER "l"
+# endif
+#elif (UINT_MAX == UINT32_MAX)
+ typedef unsigned int uint32_t;
+# ifndef PRINTF_INT32_MODIFIER
+# define PRINTF_INT32_MODIFIER ""
+# endif
+# define UINT32_C(v) v ## U
+#elif (USHRT_MAX == UINT32_MAX)
+ typedef unsigned short uint32_t;
+# define UINT32_C(v) ((unsigned short) (v))
+# ifndef PRINTF_INT32_MODIFIER
+# define PRINTF_INT32_MODIFIER ""
+# endif
+#else
+#error "Platform not supported"
+#endif
+#endif
+
+#ifndef INT32_MAX
+# define INT32_MAX (0x7fffffffL)
+#endif
+#ifndef INT32_MIN
+# define INT32_MIN INT32_C(0x80000000)
+#endif
+#if !defined(int32_t) && !defined(_INT32_T) && !defined(vxWorks)
+#if (LONG_MAX == INT32_MAX) || defined (S_SPLINT_S)
+ typedef signed long int32_t;
+# define INT32_C(v) v ## L
+# ifndef PRINTF_INT32_MODIFIER
+# define PRINTF_INT32_MODIFIER "l"
+# endif
+#elif (INT_MAX == INT32_MAX)
+ typedef signed int int32_t;
+# define INT32_C(v) v
+# ifndef PRINTF_INT32_MODIFIER
+# define PRINTF_INT32_MODIFIER ""
+# endif
+#elif (SHRT_MAX == INT32_MAX)
+ typedef signed short int32_t;
+# define INT32_C(v) ((short) (v))
+# ifndef PRINTF_INT32_MODIFIER
+# define PRINTF_INT32_MODIFIER ""
+# endif
+#else
+#error "Platform not supported"
+#endif
+#endif
+
+/*
+ * The macro stdint_int64_defined is temporarily used to record
+ * whether or not 64 integer support is available. It must be
+ * defined for any 64 integer extensions for new platforms that are
+ * added.
+ */
+
+#undef stdint_int64_defined
+#if (defined(__STDC__) && defined(__STDC_VERSION__)) || defined (S_SPLINT_S)
+# if (__STDC__ && __STDC_VERSION__ >= 199901L) || defined (S_SPLINT_S)
+# define stdint_int64_defined
+ typedef long long int64_t;
+ typedef unsigned long long uint64_t;
+# define UINT64_C(v) v ## ULL
+# define INT64_C(v) v ## LL
+# ifndef PRINTF_INT64_MODIFIER
+# define PRINTF_INT64_MODIFIER "ll"
+# endif
+# endif
+#endif
+
+#if !defined (stdint_int64_defined)
+# if defined(__GNUC__) && !defined(vxWorks)
+# define stdint_int64_defined
+ __extension__ typedef long long int64_t;
+ __extension__ typedef unsigned long long uint64_t;
+# define UINT64_C(v) v ## ULL
+# define INT64_C(v) v ## LL
+# ifndef PRINTF_INT64_MODIFIER
+# define PRINTF_INT64_MODIFIER "ll"
+# endif
+# elif defined(__MWERKS__) || defined (__SUNPRO_C) || defined (__SUNPRO_CC) || defined (__APPLE_CC__) || defined (_LONG_LONG) || defined (_CRAYC) || defined (S_SPLINT_S)
+# define stdint_int64_defined
+ typedef long long int64_t;
+ typedef unsigned long long uint64_t;
+# define UINT64_C(v) v ## ULL
+# define INT64_C(v) v ## LL
+# ifndef PRINTF_INT64_MODIFIER
+# define PRINTF_INT64_MODIFIER "ll"
+# endif
+# elif (defined(__WATCOMC__) && defined(__WATCOM_INT64__)) || (defined(_MSC_VER) && _INTEGRAL_MAX_BITS >= 64) || (defined (__BORLANDC__) && __BORLANDC__ > 0x460) || defined (__alpha) || defined (__DECC)
+# define stdint_int64_defined
+ typedef __int64 int64_t;
+ typedef unsigned __int64 uint64_t;
+# define UINT64_C(v) v ## UI64
+# define INT64_C(v) v ## I64
+# ifndef PRINTF_INT64_MODIFIER
+# define PRINTF_INT64_MODIFIER "I64"
+# endif
+# endif
+#endif
+
+#if !defined (LONG_LONG_MAX) && defined (INT64_C)
+# define LONG_LONG_MAX INT64_C (9223372036854775807)
+#endif
+#ifndef ULONG_LONG_MAX
+# define ULONG_LONG_MAX UINT64_C (18446744073709551615)
+#endif
+
+#if !defined (INT64_MAX) && defined (INT64_C)
+# define INT64_MAX INT64_C (9223372036854775807)
+#endif
+#if !defined (INT64_MIN) && defined (INT64_C)
+# define INT64_MIN INT64_C (-9223372036854775808)
+#endif
+#if !defined (UINT64_MAX) && defined (INT64_C)
+# define UINT64_MAX UINT64_C (18446744073709551615)
+#endif
+
+/*
+ * Width of hexadecimal for number field.
+ */
+
+#ifndef PRINTF_INT64_HEX_WIDTH
+# define PRINTF_INT64_HEX_WIDTH "16"
+#endif
+#ifndef PRINTF_INT32_HEX_WIDTH
+# define PRINTF_INT32_HEX_WIDTH "8"
+#endif
+#ifndef PRINTF_INT16_HEX_WIDTH
+# define PRINTF_INT16_HEX_WIDTH "4"
+#endif
+#ifndef PRINTF_INT8_HEX_WIDTH
+# define PRINTF_INT8_HEX_WIDTH "2"
+#endif
+#ifndef PRINTF_INT64_DEC_WIDTH
+# define PRINTF_INT64_DEC_WIDTH "19"
+#endif
+#ifndef PRINTF_INT32_DEC_WIDTH
+# define PRINTF_INT32_DEC_WIDTH "10"
+#endif
+#ifndef PRINTF_INT16_DEC_WIDTH
+# define PRINTF_INT16_DEC_WIDTH "5"
+#endif
+#ifndef PRINTF_INT8_DEC_WIDTH
+# define PRINTF_INT8_DEC_WIDTH "3"
+#endif
+#ifndef PRINTF_UINT64_DEC_WIDTH
+# define PRINTF_UINT64_DEC_WIDTH "20"
+#endif
+#ifndef PRINTF_UINT32_DEC_WIDTH
+# define PRINTF_UINT32_DEC_WIDTH "10"
+#endif
+#ifndef PRINTF_UINT16_DEC_WIDTH
+# define PRINTF_UINT16_DEC_WIDTH "5"
+#endif
+#ifndef PRINTF_UINT8_DEC_WIDTH
+# define PRINTF_UINT8_DEC_WIDTH "3"
+#endif
+
+/*
+ * Ok, lets not worry about 128 bit integers for now. Moore's law says
+ * we don't need to worry about that until about 2040 at which point
+ * we'll have bigger things to worry about.
+ */
+
+#ifdef stdint_int64_defined
+ typedef int64_t intmax_t;
+ typedef uint64_t uintmax_t;
+# define INTMAX_MAX INT64_MAX
+# define INTMAX_MIN INT64_MIN
+# define UINTMAX_MAX UINT64_MAX
+# define UINTMAX_C(v) UINT64_C(v)
+# define INTMAX_C(v) INT64_C(v)
+# ifndef PRINTF_INTMAX_MODIFIER
+# define PRINTF_INTMAX_MODIFIER PRINTF_INT64_MODIFIER
+# endif
+# ifndef PRINTF_INTMAX_HEX_WIDTH
+# define PRINTF_INTMAX_HEX_WIDTH PRINTF_INT64_HEX_WIDTH
+# endif
+# ifndef PRINTF_INTMAX_DEC_WIDTH
+# define PRINTF_INTMAX_DEC_WIDTH PRINTF_INT64_DEC_WIDTH
+# endif
+#else
+ typedef int32_t intmax_t;
+ typedef uint32_t uintmax_t;
+# define INTMAX_MAX INT32_MAX
+# define UINTMAX_MAX UINT32_MAX
+# define UINTMAX_C(v) UINT32_C(v)
+# define INTMAX_C(v) INT32_C(v)
+# ifndef PRINTF_INTMAX_MODIFIER
+# define PRINTF_INTMAX_MODIFIER PRINTF_INT32_MODIFIER
+# endif
+# ifndef PRINTF_INTMAX_HEX_WIDTH
+# define PRINTF_INTMAX_HEX_WIDTH PRINTF_INT32_HEX_WIDTH
+# endif
+# ifndef PRINTF_INTMAX_DEC_WIDTH
+# define PRINTF_INTMAX_DEC_WIDTH PRINTF_INT32_DEC_WIDTH
+# endif
+#endif
+
+/*
+ * Because this file currently only supports platforms which have
+ * precise powers of 2 as bit sizes for the default integers, the
+ * least definitions are all trivial. Its possible that a future
+ * version of this file could have different definitions.
+ */
+
+#ifndef stdint_least_defined
+ typedef int8_t int_least8_t;
+ typedef uint8_t uint_least8_t;
+ typedef int16_t int_least16_t;
+ typedef uint16_t uint_least16_t;
+ typedef int32_t int_least32_t;
+ typedef uint32_t uint_least32_t;
+# define PRINTF_LEAST32_MODIFIER PRINTF_INT32_MODIFIER
+# define PRINTF_LEAST16_MODIFIER PRINTF_INT16_MODIFIER
+# define UINT_LEAST8_MAX UINT8_MAX
+# define INT_LEAST8_MAX INT8_MAX
+# define UINT_LEAST16_MAX UINT16_MAX
+# define INT_LEAST16_MAX INT16_MAX
+# define UINT_LEAST32_MAX UINT32_MAX
+# define INT_LEAST32_MAX INT32_MAX
+# define INT_LEAST8_MIN INT8_MIN
+# define INT_LEAST16_MIN INT16_MIN
+# define INT_LEAST32_MIN INT32_MIN
+# ifdef stdint_int64_defined
+ typedef int64_t int_least64_t;
+ typedef uint64_t uint_least64_t;
+# define PRINTF_LEAST64_MODIFIER PRINTF_INT64_MODIFIER
+# define UINT_LEAST64_MAX UINT64_MAX
+# define INT_LEAST64_MAX INT64_MAX
+# define INT_LEAST64_MIN INT64_MIN
+# endif
+#endif
+#undef stdint_least_defined
+
+/*
+ * The ANSI C committee pretending to know or specify anything about
+ * performance is the epitome of misguided arrogance. The mandate of
+ * this file is to *ONLY* ever support that absolute minimum
+ * definition of the fast integer types, for compatibility purposes.
+ * No extensions, and no attempt to suggest what may or may not be a
+ * faster integer type will ever be made in this file. Developers are
+ * warned to stay away from these types when using this or any other
+ * stdint.h.
+ */
+
+typedef int_least8_t int_fast8_t;
+typedef uint_least8_t uint_fast8_t;
+typedef int_least16_t int_fast16_t;
+typedef uint_least16_t uint_fast16_t;
+typedef int_least32_t int_fast32_t;
+typedef uint_least32_t uint_fast32_t;
+#define UINT_FAST8_MAX UINT_LEAST8_MAX
+#define INT_FAST8_MAX INT_LEAST8_MAX
+#define UINT_FAST16_MAX UINT_LEAST16_MAX
+#define INT_FAST16_MAX INT_LEAST16_MAX
+#define UINT_FAST32_MAX UINT_LEAST32_MAX
+#define INT_FAST32_MAX INT_LEAST32_MAX
+#define INT_FAST8_MIN INT_LEAST8_MIN
+#define INT_FAST16_MIN INT_LEAST16_MIN
+#define INT_FAST32_MIN INT_LEAST32_MIN
+#ifdef stdint_int64_defined
+ typedef int_least64_t int_fast64_t;
+ typedef uint_least64_t uint_fast64_t;
+# define UINT_FAST64_MAX UINT_LEAST64_MAX
+# define INT_FAST64_MAX INT_LEAST64_MAX
+# define INT_FAST64_MIN INT_LEAST64_MIN
+#endif
+
+#undef stdint_int64_defined
+
+/*
+ * Whatever piecemeal, per compiler thing we can do about the wchar_t
+ * type limits.
+ */
+
+#if defined(__WATCOMC__) || defined(_MSC_VER) || defined (__GNUC__) && !defined(vxWorks)
+# include <wchar.h>
+# ifndef WCHAR_MIN
+# define WCHAR_MIN 0
+# endif
+# ifndef WCHAR_MAX
+# define WCHAR_MAX ((wchar_t)-1)
+# endif
+#endif
+
+/*
+ * Whatever piecemeal, per compiler/platform thing we can do about the
+ * (u)intptr_t types and limits.
+ */
+
+#if (defined (_MSC_VER) && defined (_UINTPTR_T_DEFINED)) || defined (_UINTPTR_T)
+# define STDINT_H_UINTPTR_T_DEFINED
+#endif
+
+#ifndef STDINT_H_UINTPTR_T_DEFINED
+# if defined (__alpha__) || defined (__ia64__) || defined (__x86_64__) || defined (_WIN64) || defined (__ppc64__)
+# define stdint_intptr_bits 64
+# elif defined (__WATCOMC__) || defined (__TURBOC__)
+# if defined(__TINY__) || defined(__SMALL__) || defined(__MEDIUM__)
+# define stdint_intptr_bits 16
+# else
+# define stdint_intptr_bits 32
+# endif
+# elif defined (__i386__) || defined (_WIN32) || defined (WIN32) || defined (__ppc64__)
+# define stdint_intptr_bits 32
+# elif defined (__INTEL_COMPILER)
+/* TODO -- what did Intel do about x86-64? */
+# else
+/* #error "This platform might not be supported yet" */
+# endif
+
+# ifdef stdint_intptr_bits
+# define stdint_intptr_glue3_i(a,b,c) a##b##c
+# define stdint_intptr_glue3(a,b,c) stdint_intptr_glue3_i(a,b,c)
+# ifndef PRINTF_INTPTR_MODIFIER
+# define PRINTF_INTPTR_MODIFIER stdint_intptr_glue3(PRINTF_INT,stdint_intptr_bits,_MODIFIER)
+# endif
+# ifndef PTRDIFF_MAX
+# define PTRDIFF_MAX stdint_intptr_glue3(INT,stdint_intptr_bits,_MAX)
+# endif
+# ifndef PTRDIFF_MIN
+# define PTRDIFF_MIN stdint_intptr_glue3(INT,stdint_intptr_bits,_MIN)
+# endif
+# ifndef UINTPTR_MAX
+# define UINTPTR_MAX stdint_intptr_glue3(UINT,stdint_intptr_bits,_MAX)
+# endif
+# ifndef INTPTR_MAX
+# define INTPTR_MAX stdint_intptr_glue3(INT,stdint_intptr_bits,_MAX)
+# endif
+# ifndef INTPTR_MIN
+# define INTPTR_MIN stdint_intptr_glue3(INT,stdint_intptr_bits,_MIN)
+# endif
+# ifndef INTPTR_C
+# define INTPTR_C(x) stdint_intptr_glue3(INT,stdint_intptr_bits,_C)(x)
+# endif
+# ifndef UINTPTR_C
+# define UINTPTR_C(x) stdint_intptr_glue3(UINT,stdint_intptr_bits,_C)(x)
+# endif
+ typedef stdint_intptr_glue3(uint,stdint_intptr_bits,_t) uintptr_t;
+ typedef stdint_intptr_glue3( int,stdint_intptr_bits,_t) intptr_t;
+# else
+/* TODO -- This following is likely wrong for some platforms, and does
+ nothing for the definition of uintptr_t. */
+ typedef ptrdiff_t intptr_t;
+# endif
+# define STDINT_H_UINTPTR_T_DEFINED
+#endif
+
+/*
+ * Assumes sig_atomic_t is signed and we have a 2s complement machine.
+ */
+
+#ifndef SIG_ATOMIC_MAX
+# define SIG_ATOMIC_MAX ((((sig_atomic_t) 1) << (sizeof (sig_atomic_t)*CHAR_BIT-1)) - 1)
+#endif
+
+#endif
+
+#if defined (__TEST_PSTDINT_FOR_CORRECTNESS)
+
+/*
+ * Please compile with the maximum warning settings to make sure macros are
+ * not defined more than once.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#define glue3_aux(x,y,z) x ## y ## z
+#define glue3(x,y,z) glue3_aux(x,y,z)
+
+#define DECLU(bits) glue3(uint,bits,_t) glue3(u,bits,) = glue3(UINT,bits,_C) (0);
+#define DECLI(bits) glue3(int,bits,_t) glue3(i,bits,) = glue3(INT,bits,_C) (0);
+
+#define DECL(us,bits) glue3(DECL,us,) (bits)
+
+#define TESTUMAX(bits) glue3(u,bits,) = ~glue3(u,bits,); if (glue3(UINT,bits,_MAX) != glue3(u,bits,)) printf ("Something wrong with UINT%d_MAX\n", bits)
+
+#define REPORTERROR(msg) { err_n++; if (err_first <= 0) err_first = __LINE__; printf msg; }
+
+int main () {
+ int err_n = 0;
+ int err_first = 0;
+ DECL(I,8)
+ DECL(U,8)
+ DECL(I,16)
+ DECL(U,16)
+ DECL(I,32)
+ DECL(U,32)
+#ifdef INT64_MAX
+ DECL(I,64)
+ DECL(U,64)
+#endif
+ intmax_t imax = INTMAX_C(0);
+ uintmax_t umax = UINTMAX_C(0);
+ char str0[256], str1[256];
+
+ sprintf (str0, "%" PRINTF_INT32_MODIFIER "d", INT32_C(2147483647));
+ if (0 != strcmp (str0, "2147483647")) REPORTERROR (("Something wrong with PRINTF_INT32_MODIFIER : %s\n", str0));
+ if (atoi(PRINTF_INT32_DEC_WIDTH) != (int) strlen(str0)) REPORTERROR (("Something wrong with PRINTF_INT32_DEC_WIDTH : %s\n", PRINTF_INT32_DEC_WIDTH));
+ sprintf (str0, "%" PRINTF_INT32_MODIFIER "u", UINT32_C(4294967295));
+ if (0 != strcmp (str0, "4294967295")) REPORTERROR (("Something wrong with PRINTF_INT32_MODIFIER : %s\n", str0));
+ if (atoi(PRINTF_UINT32_DEC_WIDTH) != (int) strlen(str0)) REPORTERROR (("Something wrong with PRINTF_UINT32_DEC_WIDTH : %s\n", PRINTF_UINT32_DEC_WIDTH));
+#ifdef INT64_MAX
+ sprintf (str1, "%" PRINTF_INT64_MODIFIER "d", INT64_C(9223372036854775807));
+ if (0 != strcmp (str1, "9223372036854775807")) REPORTERROR (("Something wrong with PRINTF_INT32_MODIFIER : %s\n", str1));
+ if (atoi(PRINTF_INT64_DEC_WIDTH) != (int) strlen(str1)) REPORTERROR (("Something wrong with PRINTF_INT64_DEC_WIDTH : %s, %d\n", PRINTF_INT64_DEC_WIDTH, (int) strlen(str1)));
+ sprintf (str1, "%" PRINTF_INT64_MODIFIER "u", UINT64_C(18446744073709550591));
+ if (0 != strcmp (str1, "18446744073709550591")) REPORTERROR (("Something wrong with PRINTF_INT32_MODIFIER : %s\n", str1));
+ if (atoi(PRINTF_UINT64_DEC_WIDTH) != (int) strlen(str1)) REPORTERROR (("Something wrong with PRINTF_UINT64_DEC_WIDTH : %s, %d\n", PRINTF_UINT64_DEC_WIDTH, (int) strlen(str1)));
+#endif
+
+ sprintf (str0, "%d %x\n", 0, ~0);
+
+ sprintf (str1, "%d %x\n", i8, ~0);
+ if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with i8 : %s\n", str1));
+ sprintf (str1, "%u %x\n", u8, ~0);
+ if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with u8 : %s\n", str1));
+ sprintf (str1, "%d %x\n", i16, ~0);
+ if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with i16 : %s\n", str1));
+ sprintf (str1, "%u %x\n", u16, ~0);
+ if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with u16 : %s\n", str1));
+ sprintf (str1, "%" PRINTF_INT32_MODIFIER "d %x\n", i32, ~0);
+ if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with i32 : %s\n", str1));
+ sprintf (str1, "%" PRINTF_INT32_MODIFIER "u %x\n", u32, ~0);
+ if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with u32 : %s\n", str1));
+#ifdef INT64_MAX
+ sprintf (str1, "%" PRINTF_INT64_MODIFIER "d %x\n", i64, ~0);
+ if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with i64 : %s\n", str1));
+#endif
+ sprintf (str1, "%" PRINTF_INTMAX_MODIFIER "d %x\n", imax, ~0);
+ if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with imax : %s\n", str1));
+ sprintf (str1, "%" PRINTF_INTMAX_MODIFIER "u %x\n", umax, ~0);
+ if (0 != strcmp (str0, str1)) REPORTERROR (("Something wrong with umax : %s\n", str1));
+
+ TESTUMAX(8);
+ TESTUMAX(16);
+ TESTUMAX(32);
+#ifdef INT64_MAX
+ TESTUMAX(64);
+#endif
+
+#define STR(v) #v
+#define Q(v) printf ("sizeof " STR(v) " = %u\n", (unsigned) sizeof (v));
+ if (err_n) {
+ printf ("pstdint.h is not correct. Please use sizes below to correct it:\n");
+ }
+
+ Q(int)
+ Q(unsigned)
+ Q(long int)
+ Q(short int)
+ Q(int8_t)
+ Q(int16_t)
+ Q(int32_t)
+#ifdef INT64_MAX
+ Q(int64_t)
+#endif
+
+ return EXIT_SUCCESS;
+}
+
+#endif
diff --git a/src/mesh/assimp-master/include/assimp/Compiler/pushpack1.h b/src/mesh/assimp-master/include/assimp/Compiler/pushpack1.h
new file mode 100644
index 0000000..b32ed17
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Compiler/pushpack1.h
@@ -0,0 +1,43 @@
+
+
+// ===============================================================================
+// 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(__clang__)) || defined(__BORLANDC__) || defined (__BCPLUSPLUS__)
+# pragma pack(push,1)
+# define PACK_STRUCT
+#elif defined( __GNUC__ ) || defined(__clang__)
+# 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
diff --git a/src/mesh/assimp-master/include/assimp/CreateAnimMesh.h b/src/mesh/assimp-master/include/assimp/CreateAnimMesh.h
new file mode 100644
index 0000000..e5211f5
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/CreateAnimMesh.h
@@ -0,0 +1,77 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file CreateAnimMesh.h
+ * Create AnimMesh from Mesh
+ */
+#pragma once
+#ifndef INCLUDED_AI_CREATE_ANIM_MESH_H
+#define INCLUDED_AI_CREATE_ANIM_MESH_H
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/mesh.h>
+
+namespace Assimp {
+
+/**
+ * Create aiAnimMesh from aiMesh.
+ * @param mesh The input mesh to create an animated mesh from.
+ * @param needPositions If true, positions will be copied from.
+ * @param needNormals If true, normals will be copied from.
+ * @param needTangents If true, tangents and bitangents will be copied from.
+ * @param needColors If true, colors will be copied from.
+ * @param needTexCoords If true, texCoords will be copied from.
+ * @return The new created animated mesh.
+ */
+ASSIMP_API aiAnimMesh *aiCreateAnimMesh(const aiMesh *mesh,
+ bool needPositions = true,
+ bool needNormals = true,
+ bool needTangents = true,
+ bool needColors = true,
+ bool needTexCoords = true);
+
+} // end of namespace Assimp
+
+#endif // INCLUDED_AI_CREATE_ANIM_MESH_H
+
diff --git a/src/mesh/assimp-master/include/assimp/DefaultIOStream.h b/src/mesh/assimp-master/include/assimp/DefaultIOStream.h
new file mode 100644
index 0000000..aa298a6
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/DefaultIOStream.h
@@ -0,0 +1,139 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/**
+ * @file
+ * @brief Default file I/O using fXXX()-family of functions
+ */
+#pragma once
+#ifndef AI_DEFAULTIOSTREAM_H_INC
+#define AI_DEFAULTIOSTREAM_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <cstdio>
+#include <assimp/IOStream.hpp>
+#include <assimp/importerdesc.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:
+ /// @brief
+ DefaultIOStream() AI_NO_EXCEPT;
+
+ /// @brief The class constructor with the file name and the stream.
+ /// @param pFile The file-streaam
+ /// @param strFilename The file name
+ 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) override;
+
+ // -------------------------------------------------------------------
+ /// Write to stream
+ size_t Write(const void* pvBuffer, size_t pSize, size_t pCount) override;
+
+ // -------------------------------------------------------------------
+ /// Seek specific position
+ aiReturn Seek(size_t pOffset, aiOrigin pOrigin) override;
+
+ // -------------------------------------------------------------------
+ /// Get current seek position
+ size_t Tell() const override;
+
+ // -------------------------------------------------------------------
+ /// Get size of file
+ size_t FileSize() const override;
+
+ // -------------------------------------------------------------------
+ /// Flush file contents
+ void Flush() override;
+
+private:
+ FILE* mFile;
+ std::string mFilename;
+ mutable size_t mCachedSize;
+};
+
+// ----------------------------------------------------------------------------------
+AI_FORCE_INLINE DefaultIOStream::DefaultIOStream() AI_NO_EXCEPT :
+ mFile(nullptr),
+ mFilename(),
+ mCachedSize(SIZE_MAX) {
+ // empty
+}
+
+// ----------------------------------------------------------------------------------
+AI_FORCE_INLINE DefaultIOStream::DefaultIOStream (FILE* pFile, const std::string &strFilename) :
+ mFile(pFile),
+ mFilename(strFilename),
+ mCachedSize(SIZE_MAX) {
+ // empty
+}
+
+// ----------------------------------------------------------------------------------
+
+} // ns assimp
+
+#endif //!!AI_DEFAULTIOSTREAM_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/DefaultIOSystem.h b/src/mesh/assimp-master/include/assimp/DefaultIOSystem.h
new file mode 100644
index 0000000..8545e75
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/DefaultIOSystem.h
@@ -0,0 +1,99 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/**
+ * @file Default implementation of IOSystem using the standard C file functions
+ */
+#pragma once
+#ifndef AI_DEFAULTIOSYSTEM_H_INC
+#define AI_DEFAULTIOSYSTEM_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/IOSystem.hpp>
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** Default implementation of IOSystem using the standard C file functions */
+class ASSIMP_API DefaultIOSystem : public IOSystem {
+public:
+ // -------------------------------------------------------------------
+ /** Tests for the existence of a file at the given path. */
+ bool Exists( const char* pFile) const override;
+
+ // -------------------------------------------------------------------
+ /** Returns the directory separator. */
+ char getOsSeparator() const override;
+
+ // -------------------------------------------------------------------
+ /** Open a new file with a given path. */
+ IOStream* Open( const char* pFile, const char* pMode = "rb") override;
+
+ // -------------------------------------------------------------------
+ /** Closes the given file and releases all resources associated with it. */
+ void Close( IOStream* pFile) override;
+
+ // -------------------------------------------------------------------
+ /** Compare two paths */
+ bool ComparePaths (const char* one, const char* second) const override;
+
+ /** @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
diff --git a/src/mesh/assimp-master/include/assimp/DefaultLogger.hpp b/src/mesh/assimp-master/include/assimp/DefaultLogger.hpp
new file mode 100644
index 0000000..723097f
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/DefaultLogger.hpp
@@ -0,0 +1,193 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/**
+ * @file DefaultLogger.hpp
+ */
+
+#pragma once
+#ifndef INCLUDED_AI_DEFAULTLOGGER
+#define INCLUDED_AI_DEFAULTLOGGER
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include "LogStream.hpp"
+#include "Logger.hpp"
+#include "NullLogger.hpp"
+#include <vector>
+
+namespace Assimp {
+// ------------------------------------------------------------------------------------
+class IOStream;
+struct LogStreamInfo;
+
+/** default name of log-file */
+#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, DEBUG turns on debug messages and VERBOSE turns on all 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 nullptr 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 = nullptr);
+
+ // ----------------------------------------------------------------------
+ /** @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) override;
+
+ // ----------------------------------------------------------------------
+ /** @copydoc Logger::detachStream */
+ bool detachStream(LogStream *pStream, unsigned int severity) override;
+
+private:
+ // ----------------------------------------------------------------------
+ /** @briefPrivate construction for internal use by create().
+ * @param severity Logging granularity */
+ explicit DefaultLogger(LogSeverity severity);
+
+ // ----------------------------------------------------------------------
+ /** @briefDestructor */
+ ~DefaultLogger() override;
+
+ /** @brief Logs debug infos, only been written when severity level DEBUG or higher is set */
+ void OnDebug(const char *message) override;
+
+ /** @brief Logs debug infos, only been written when severity level VERBOSE is set */
+ void OnVerboseDebug(const char *message) override;
+
+ /** @brief Logs an info message */
+ void OnInfo(const char *message) override;
+
+ /** @brief Logs a warning message */
+ void OnWarn(const char *message) override;
+
+ /** @brief Logs an error message */
+ void OnError(const char *message) override;
+
+ // ----------------------------------------------------------------------
+ /** @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
+ using StreamArray = std::vector<LogStreamInfo *>;
+ using StreamIt = std::vector<LogStreamInfo *>::iterator;
+ using ConstStreamIt = std::vector<LogStreamInfo *>::const_iterator;
+
+ //! 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
diff --git a/src/mesh/assimp-master/include/assimp/Exceptional.h b/src/mesh/assimp-master/include/assimp/Exceptional.h
new file mode 100644
index 0000000..ec3d38c
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Exceptional.h
@@ -0,0 +1,182 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#pragma once
+#ifndef AI_INCLUDED_EXCEPTIONAL_H
+#define AI_INCLUDED_EXCEPTIONAL_H
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/DefaultIOStream.h>
+#include <assimp/TinyFormatter.h>
+#include <stdexcept>
+
+using std::runtime_error;
+
+#ifdef _MSC_VER
+#pragma warning(disable : 4275)
+#endif
+
+// ---------------------------------------------------------------------------
+/**
+ * The base-class for all other exceptions
+ */
+class ASSIMP_API DeadlyErrorBase : public runtime_error {
+protected:
+ /// @brief The class constructor with the formatter.
+ /// @param f The formatter.
+ DeadlyErrorBase(Assimp::Formatter::format f);
+
+ /// @brief The class constructor with the parameter ellipse.
+ /// @tparam ...T The type for the ellipse
+ /// @tparam U The other type
+ /// @param f The formatter
+ /// @param u One parameter
+ /// @param ...args The rest
+ template<typename... T, typename U>
+ DeadlyErrorBase(Assimp::Formatter::format f, U&& u, T&&... args) :
+ DeadlyErrorBase(std::move(f << std::forward<U>(u)), std::forward<T>(args)...) {}
+};
+
+// ---------------------------------------------------------------------------
+/** FOR IMPORTER PLUGINS ONLY: Simple exception class to be thrown if an
+ * unrecoverable error occurs while importing. Loading APIs return
+ * nullptr instead of a valid aiScene then. */
+class ASSIMP_API DeadlyImportError : public DeadlyErrorBase {
+public:
+ /// @brief The class constructor with the message.
+ /// @param message The message
+ DeadlyImportError(const char *message) :
+ DeadlyErrorBase(Assimp::Formatter::format(), std::forward<const char*>(message)) {
+ // empty
+ }
+
+ /// @brief The class constructor with the parameter ellipse.
+ /// @tparam ...T The type for the ellipse
+ /// @param ...args The args
+ template<typename... T>
+ explicit DeadlyImportError(T&&... args) :
+ DeadlyErrorBase(Assimp::Formatter::format(), std::forward<T>(args)...) {
+ // empty
+ }
+};
+
+// ---------------------------------------------------------------------------
+/** FOR EXPORTER PLUGINS ONLY: Simple exception class to be thrown if an
+ * unrecoverable error occurs while exporting. Exporting APIs return
+ * nullptr instead of a valid aiScene then. */
+class ASSIMP_API DeadlyExportError : public DeadlyErrorBase {
+public:
+ /** Constructor with arguments */
+ template<typename... T>
+ explicit DeadlyExportError(T&&... args) :
+ DeadlyErrorBase(Assimp::Formatter::format(), std::forward<T>(args)...) {}
+};
+
+#ifdef _MSC_VER
+#pragma warning(default : 4275)
+#endif
+
+// ---------------------------------------------------------------------------
+template <typename T>
+struct ExceptionSwallower {
+ T operator()() const {
+ return T();
+ }
+};
+
+// ---------------------------------------------------------------------------
+template <typename T>
+struct ExceptionSwallower<T *> {
+ T *operator()() const {
+ return nullptr;
+ }
+};
+
+// ---------------------------------------------------------------------------
+template <>
+struct ExceptionSwallower<aiReturn> {
+ aiReturn operator()() const {
+ try {
+ throw;
+ } catch (std::bad_alloc &) {
+ return aiReturn_OUTOFMEMORY;
+ } catch (...) {
+ return aiReturn_FAILURE;
+ }
+ }
+};
+
+// ---------------------------------------------------------------------------
+template <>
+struct ExceptionSwallower<void> {
+ void operator()() const {
+ return;
+ }
+};
+
+#define ASSIMP_BEGIN_EXCEPTION_REGION() \
+ { \
+ try {
+
+#define ASSIMP_END_EXCEPTION_REGION_WITH_ERROR_STRING(type, ASSIMP_END_EXCEPTION_REGION_errorString, ASSIMP_END_EXCEPTION_REGION_exception) \
+ } \
+ catch (const DeadlyImportError &e) { \
+ ASSIMP_END_EXCEPTION_REGION_errorString = e.what(); \
+ ASSIMP_END_EXCEPTION_REGION_exception = std::current_exception(); \
+ return ExceptionSwallower<type>()(); \
+ } \
+ catch (...) { \
+ ASSIMP_END_EXCEPTION_REGION_errorString = "Unknown exception"; \
+ ASSIMP_END_EXCEPTION_REGION_exception = std::current_exception(); \
+ return ExceptionSwallower<type>()(); \
+ } \
+}
+
+#define ASSIMP_END_EXCEPTION_REGION(type) \
+ } \
+ catch (...) { \
+ return ExceptionSwallower<type>()(); \
+ } \
+ }
+
+#endif // AI_INCLUDED_EXCEPTIONAL_H
diff --git a/src/mesh/assimp-master/include/assimp/Exporter.hpp b/src/mesh/assimp-master/include/assimp/Exporter.hpp
new file mode 100644
index 0000000..09a4594
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Exporter.hpp
@@ -0,0 +1,509 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Exporter.hpp
+* @brief Defines the CPP-API for the Assimp export interface
+*/
+#pragma once
+#ifndef AI_EXPORT_HPP_INC
+#define AI_EXPORT_HPP_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+#include "cexport.h"
+#include <map>
+#include <functional>
+
+namespace Assimp {
+
+class ExporterPimpl;
+class IOSystem;
+class ProgressHandler;
+
+// ----------------------------------------------------------------------------------
+/** CPP-API: The Exporter class forms an C++ interface to the export functionality
+ * of the Open Asset Import Library. Note that the export interface is available
+ * only if Assimp has been built with ASSIMP_BUILD_NO_EXPORT not defined.
+ *
+ * The interface is modeled after the importer interface and mostly
+ * symmetric. The same rules for threading etc. apply.
+ *
+ * In a nutshell, there are two export interfaces: #Export, which writes the
+ * output file(s) either to the regular file system or to a user-supplied
+ * #IOSystem, and #ExportToBlob which returns a linked list of memory
+ * buffers (blob), each referring to one output file (in most cases
+ * there will be only one output file of course, but this extra complexity is
+ * needed since Assimp aims at supporting a wide range of file formats).
+ *
+ * #ExportToBlob is especially useful if you intend to work
+ * with the data in-memory.
+*/
+class ASSIMP_API ExportProperties;
+
+class ASSIMP_API Exporter {
+public:
+ /** Function pointer type of a Export worker function */
+ typedef void (*fpExportFunc)(const char *, IOSystem *, const aiScene *, const ExportProperties *);
+
+ /** Internal description of an Assimp export format option */
+ struct ExportFormatEntry {
+ /// Public description structure to be returned by aiGetExportFormatDescription()
+ aiExportFormatDesc mDescription;
+
+ // Worker function to do the actual exporting
+ fpExportFunc mExportFunction;
+
+ // Post-processing steps to be executed PRIOR to invoking mExportFunction
+ unsigned int mEnforcePP;
+
+ // Constructor to fill all entries
+ ExportFormatEntry(const char *pId, const char *pDesc, const char *pExtension, fpExportFunc pFunction, unsigned int pEnforcePP = 0u) {
+ mDescription.id = pId;
+ mDescription.description = pDesc;
+ mDescription.fileExtension = pExtension;
+ mExportFunction = pFunction;
+ mEnforcePP = pEnforcePP;
+ }
+
+ ExportFormatEntry() :
+ mExportFunction(),
+ mEnforcePP() {
+ mDescription.id = nullptr;
+ mDescription.description = nullptr;
+ mDescription.fileExtension = nullptr;
+ }
+ };
+
+ /**
+ * @brief The class constructor.
+ */
+ Exporter();
+
+ /**
+ * @brief The class destructor.
+ */
+ ~Exporter();
+
+ // -------------------------------------------------------------------
+ /** Supplies a custom IO handler to the exporter to use to open and
+ * access files.
+ *
+ * If you need #Export to use custom IO logic to access the files,
+ * you need to supply a custom implementation of IOSystem and
+ * IOFile to the exporter.
+ *
+ * #Exporter takes ownership of the object and will destroy it
+ * afterwards. The previously assigned handler will be deleted.
+ * Pass NULL to take again ownership of your IOSystem and reset Assimp
+ * to use its default implementation, which uses plain file IO.
+ *
+ * @param pIOHandler The IO handler to be used in all file accesses
+ * of the Importer. */
+ void SetIOHandler(IOSystem *pIOHandler);
+
+ // -------------------------------------------------------------------
+ /** Retrieves the IO handler that is currently set.
+ * You can use #IsDefaultIOHandler() to check whether the returned
+ * interface is the default IO handler provided by ASSIMP. The default
+ * handler is active as long the application doesn't supply its own
+ * custom IO handler via #SetIOHandler().
+ * @return A valid IOSystem interface, never NULL. */
+ IOSystem *GetIOHandler() const;
+
+ // -------------------------------------------------------------------
+ /** Checks whether a default IO handler is active
+ * A default handler is active as long the application doesn't
+ * supply its own custom IO handler via #SetIOHandler().
+ * @return true by default */
+ bool IsDefaultIOHandler() const;
+
+ // -------------------------------------------------------------------
+ /** Supplies a custom progress handler to the exporter. This
+ * interface exposes an #Update() callback, which is called
+ * more or less periodically (please don't sue us if it
+ * isn't as periodically as you'd like it to have ...).
+ * This can be used to implement progress bars and loading
+ * timeouts.
+ * @param pHandler Progress callback interface. Pass nullptr to
+ * disable progress reporting.
+ * @note Progress handlers can be used to abort the loading
+ * at almost any time.*/
+ void SetProgressHandler(ProgressHandler *pHandler);
+
+ // -------------------------------------------------------------------
+ /** Exports the given scene to a chosen file format. Returns the exported
+ * data as a binary blob which you can write into a file or something.
+ * When you're done with the data, simply let the #Exporter instance go
+ * out of scope to have it released automatically.
+ * @param pScene The scene to export. Stays in possession of the caller,
+ * is not changed by the function.
+ * @param pFormatId ID string to specify to which format you want to
+ * export to. Use
+ * #GetExportFormatCount / #GetExportFormatDescription to learn which
+ * export formats are available.
+ * @param pPreprocessing See the documentation for #Export
+ * @return the exported data or nullptr in case of error.
+ * @note If the Exporter instance did already hold a blob from
+ * a previous call to #ExportToBlob, it will be disposed.
+ * Any IO handlers set via #SetIOHandler are ignored here.
+ * @note Use aiCopyScene() to get a modifiable copy of a previously
+ * imported scene. */
+ const aiExportDataBlob *ExportToBlob(const aiScene *pScene, const char *pFormatId,
+ unsigned int pPreprocessing = 0u, const ExportProperties *pProperties = nullptr);
+ const aiExportDataBlob *ExportToBlob(const aiScene *pScene, const std::string &pFormatId,
+ unsigned int pPreprocessing = 0u, const ExportProperties *pProperties = nullptr);
+
+ // -------------------------------------------------------------------
+ /** Convenience function to export directly to a file. Use
+ * #SetIOSystem to supply a custom IOSystem to gain fine-grained control
+ * about the output data flow of the export process.
+ * @param pBlob A data blob obtained from a previous call to #aiExportScene. Must not be nullptr.
+ * @param pPath Full target file name. Target must be accessible.
+ * @param pPreprocessing Accepts any choice of the #aiPostProcessSteps enumerated
+ * flags, but in reality only a subset of them makes sense here. Specifying
+ * 'preprocessing' flags is useful if the input scene does not conform to
+ * Assimp's default conventions as specified in the @link data Data Structures Page @endlink.
+ * In short, this means the geometry data should use a right-handed coordinate systems, face
+ * winding should be counter-clockwise and the UV coordinate origin is assumed to be in
+ * the upper left. The #aiProcess_MakeLeftHanded, #aiProcess_FlipUVs and
+ * #aiProcess_FlipWindingOrder flags are used in the import side to allow users
+ * to have those defaults automatically adapted to their conventions. Specifying those flags
+ * for exporting has the opposite effect, respectively. Some other of the
+ * #aiPostProcessSteps enumerated values may be useful as well, but you'll need
+ * to try out what their effect on the exported file is. Many formats impose
+ * their own restrictions on the structure of the geometry stored therein,
+ * so some preprocessing may have little or no effect at all, or may be
+ * redundant as exporters would apply them anyhow. A good example
+ * is triangulation - whilst you can enforce it by specifying
+ * the #aiProcess_Triangulate flag, most export formats support only
+ * triangulate data so they would run the step even if it wasn't requested.
+ *
+ * If assimp detects that the input scene was directly taken from the importer side of
+ * the library (i.e. not copied using aiCopyScene and potentially modified afterwards),
+ * any post-processing steps already applied to the scene will not be applied again, unless
+ * they show non-idempotent behavior (#aiProcess_MakeLeftHanded, #aiProcess_FlipUVs and
+ * #aiProcess_FlipWindingOrder).
+ * @return AI_SUCCESS if everything was fine.
+ * @note Use aiCopyScene() to get a modifiable copy of a previously
+ * imported scene.*/
+ aiReturn Export(const aiScene *pScene, const char *pFormatId, const char *pPath,
+ unsigned int pPreprocessing = 0u, const ExportProperties *pProperties = nullptr);
+ aiReturn Export(const aiScene *pScene, const std::string &pFormatId, const std::string &pPath,
+ unsigned int pPreprocessing = 0u, const ExportProperties *pProperties = nullptr);
+
+ // -------------------------------------------------------------------
+ /** Returns an error description of an error that occurred in #Export
+ * or #ExportToBlob
+ *
+ * Returns an empty string if no error occurred.
+ * @return A description of the last error, an empty string if no
+ * error occurred. The string is never nullptr.
+ *
+ * @note The returned function remains valid until one of the
+ * following methods is called: #Export, #ExportToBlob, #FreeBlob */
+ const char *GetErrorString() const;
+
+ // -------------------------------------------------------------------
+ /** Return the blob obtained from the last call to #ExportToBlob */
+ const aiExportDataBlob *GetBlob() const;
+
+ // -------------------------------------------------------------------
+ /** Orphan the blob from the last call to #ExportToBlob. This means
+ * the caller takes ownership and is thus responsible for calling
+ * the C API function #aiReleaseExportBlob to release it. */
+ const aiExportDataBlob *GetOrphanedBlob() const;
+
+ // -------------------------------------------------------------------
+ /** Frees the current blob.
+ *
+ * The function does nothing if no blob has previously been
+ * previously produced via #ExportToBlob. #FreeBlob is called
+ * automatically by the destructor. The only reason to call
+ * it manually would be to reclaim as much storage as possible
+ * without giving up the #Exporter instance yet. */
+ void FreeBlob();
+
+ // -------------------------------------------------------------------
+ /** Returns the number of export file formats available in the current
+ * Assimp build. Use #Exporter::GetExportFormatDescription to
+ * retrieve infos of a specific export format.
+ *
+ * This includes built-in exporters as well as exporters registered
+ * using #RegisterExporter.
+ **/
+ size_t GetExportFormatCount() const;
+
+ // -------------------------------------------------------------------
+ /** Returns a description of the nth export file format. Use #
+ * #Exporter::GetExportFormatCount to learn how many export
+ * formats are supported.
+ *
+ * The returned pointer is of static storage duration if the
+ * pIndex pertains to a built-in exporter (i.e. one not registered
+ * via #RegistrerExporter). It is restricted to the life-time of the
+ * #Exporter instance otherwise.
+ *
+ * @param pIndex Index of the export format to retrieve information
+ * for. Valid range is 0 to #Exporter::GetExportFormatCount
+ * @return A description of that specific export format.
+ * NULL if pIndex is out of range. */
+ const aiExportFormatDesc *GetExportFormatDescription(size_t pIndex) const;
+
+ // -------------------------------------------------------------------
+ /** Register a custom exporter. Custom export formats are limited to
+ * to the current #Exporter instance and do not affect the
+ * library globally. The indexes under which the format's
+ * export format description can be queried are assigned
+ * monotonously.
+ * @param desc Exporter description.
+ * @return aiReturn_SUCCESS if the export format was successfully
+ * registered. A common cause that would prevent an exporter
+ * from being registered is that its format id is already
+ * occupied by another format. */
+ aiReturn RegisterExporter(const ExportFormatEntry &desc);
+
+ // -------------------------------------------------------------------
+ /** Remove an export format previously registered with #RegisterExporter
+ * from the #Exporter instance (this can also be used to drop
+ * built-in exporters because those are implicitly registered
+ * using #RegisterExporter).
+ * @param id Format id to be unregistered, this refers to the
+ * 'id' field of #aiExportFormatDesc.
+ * @note Calling this method on a format description not yet registered
+ * has no effect.*/
+ void UnregisterExporter(const char *id);
+
+protected:
+ // Just because we don't want you to know how we're hacking around.
+ ExporterPimpl *pimpl;
+};
+
+class ASSIMP_API ExportProperties {
+public:
+ // Data type to store the key hash
+ typedef unsigned int KeyType;
+
+ // typedefs for our four configuration maps.
+ // We don't need more, so there is no need for a generic solution
+ typedef std::map<KeyType, int> IntPropertyMap;
+ typedef std::map<KeyType, ai_real> FloatPropertyMap;
+ typedef std::map<KeyType, std::string> StringPropertyMap;
+ typedef std::map<KeyType, aiMatrix4x4> MatrixPropertyMap;
+ typedef std::map<KeyType, std::function<void *(void *)>> CallbackPropertyMap;
+
+public:
+ /** Standard constructor
+ * @see ExportProperties()
+ */
+ ExportProperties();
+
+ // -------------------------------------------------------------------
+ /** Copy constructor.
+ *
+ * This copies the configuration properties of another ExportProperties.
+ * @see ExportProperties(const ExportProperties& other)
+ */
+ ExportProperties(const ExportProperties &other);
+
+ // -------------------------------------------------------------------
+ /** Set an integer configuration property.
+ * @param szName Name of the property. All supported properties
+ * are defined in the aiConfig.g header (all constants share the
+ * prefix AI_CONFIG_XXX and are simple strings).
+ * @param iValue New value of the property
+ * @return true if the property was set before. The new value replaces
+ * the previous value in this case.
+ * @note Property of different types (float, int, string ..) are kept
+ * on different stacks, so calling SetPropertyInteger() for a
+ * floating-point property has no effect - the loader will call
+ * GetPropertyFloat() to read the property, but it won't be there.
+ */
+ bool SetPropertyInteger(const char *szName, int iValue);
+
+ // -------------------------------------------------------------------
+ /** Set a boolean configuration property. Boolean properties
+ * are stored on the integer stack internally so it's possible
+ * to set them via #SetPropertyBool and query them with
+ * #GetPropertyBool and vice versa.
+ * @see SetPropertyInteger()
+ */
+ bool SetPropertyBool(const char *szName, bool value) {
+ return SetPropertyInteger(szName, value);
+ }
+
+ // -------------------------------------------------------------------
+ /** Set a floating-point configuration property.
+ * @see SetPropertyInteger()
+ */
+ bool SetPropertyFloat(const char *szName, ai_real fValue);
+
+ // -------------------------------------------------------------------
+ /** Set a string configuration property.
+ * @see SetPropertyInteger()
+ */
+ bool SetPropertyString(const char *szName, const std::string &sValue);
+
+ // -------------------------------------------------------------------
+ /** Set a matrix configuration property.
+ * @see SetPropertyInteger()
+ */
+ bool SetPropertyMatrix(const char *szName, const aiMatrix4x4 &sValue);
+
+ bool SetPropertyCallback(const char *szName, const std::function<void *(void *)> &f);
+
+ // -------------------------------------------------------------------
+ /** Get a configuration property.
+ * @param szName Name of the property. All supported properties
+ * are defined in the aiConfig.g header (all constants share the
+ * prefix AI_CONFIG_XXX).
+ * @param iErrorReturn Value that is returned if the property
+ * is not found.
+ * @return Current value of the property
+ * @note Property of different types (float, int, string ..) are kept
+ * on different lists, so calling SetPropertyInteger() for a
+ * floating-point property has no effect - the loader will call
+ * GetPropertyFloat() to read the property, but it won't be there.
+ */
+ int GetPropertyInteger(const char *szName,
+ int iErrorReturn = 0xffffffff) const;
+
+ // -------------------------------------------------------------------
+ /** Get a boolean configuration property. Boolean properties
+ * are stored on the integer stack internally so it's possible
+ * to set them via #SetPropertyBool and query them with
+ * #GetPropertyBool and vice versa.
+ * @see GetPropertyInteger()
+ */
+ bool GetPropertyBool(const char *szName, bool bErrorReturn = false) const {
+ return GetPropertyInteger(szName, bErrorReturn) != 0;
+ }
+
+ // -------------------------------------------------------------------
+ /** Get a floating-point configuration property
+ * @see GetPropertyInteger()
+ */
+ ai_real GetPropertyFloat(const char *szName,
+ ai_real fErrorReturn = 10e10f) const;
+
+ // -------------------------------------------------------------------
+ /** Get a string configuration property
+ *
+ * The return value remains valid until the property is modified.
+ * @see GetPropertyInteger()
+ */
+ const std::string GetPropertyString(const char *szName,
+ const std::string &sErrorReturn = "") const;
+
+ // -------------------------------------------------------------------
+ /** Get a matrix configuration property
+ *
+ * The return value remains valid until the property is modified.
+ * @see GetPropertyInteger()
+ */
+ const aiMatrix4x4 GetPropertyMatrix(const char *szName,
+ const aiMatrix4x4 &sErrorReturn = aiMatrix4x4()) const;
+
+ std::function<void *(void *)> GetPropertyCallback(const char* szName) const;
+
+ // -------------------------------------------------------------------
+ /** Determine a integer configuration property has been set.
+ * @see HasPropertyInteger()
+ */
+ bool HasPropertyInteger(const char *szName) const;
+
+ /** Determine a boolean configuration property has been set.
+ * @see HasPropertyBool()
+ */
+ bool HasPropertyBool(const char *szName) const;
+
+ /** Determine a boolean configuration property has been set.
+ * @see HasPropertyFloat()
+ */
+ bool HasPropertyFloat(const char *szName) const;
+
+ /** Determine a String configuration property has been set.
+ * @see HasPropertyString()
+ */
+ bool HasPropertyString(const char *szName) const;
+
+ /** Determine a Matrix configuration property has been set.
+ * @see HasPropertyMatrix()
+ */
+ bool HasPropertyMatrix(const char *szName) const;
+
+ bool HasPropertyCallback(const char *szName) const;
+
+ /** List of integer properties */
+ IntPropertyMap mIntProperties;
+
+ /** List of floating-point properties */
+ FloatPropertyMap mFloatProperties;
+
+ /** List of string properties */
+ StringPropertyMap mStringProperties;
+
+ /** List of Matrix properties */
+ MatrixPropertyMap mMatrixProperties;
+
+ CallbackPropertyMap mCallbackProperties;
+};
+
+// ----------------------------------------------------------------------------------
+inline const aiExportDataBlob *Exporter::ExportToBlob(const aiScene *pScene, const std::string &pFormatId,
+ unsigned int pPreprocessing, const ExportProperties *pProperties) {
+ return ExportToBlob(pScene, pFormatId.c_str(), pPreprocessing, pProperties);
+}
+
+// ----------------------------------------------------------------------------------
+inline aiReturn Exporter ::Export(const aiScene *pScene, const std::string &pFormatId,
+ const std::string &pPath, unsigned int pPreprocessing,
+ const ExportProperties *pProperties) {
+ return Export(pScene, pFormatId.c_str(), pPath.c_str(), pPreprocessing, pProperties);
+}
+
+} // namespace Assimp
+
+#endif // ASSIMP_BUILD_NO_EXPORT
+#endif // AI_EXPORT_HPP_INC
diff --git a/src/mesh/assimp-master/include/assimp/GenericProperty.h b/src/mesh/assimp-master/include/assimp/GenericProperty.h
new file mode 100644
index 0000000..073d533
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/GenericProperty.h
@@ -0,0 +1,133 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#pragma once
+#ifndef AI_GENERIC_PROPERTY_H_INCLUDED
+#define AI_GENERIC_PROPERTY_H_INCLUDED
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/Hash.h>
+#include <assimp/ai_assert.h>
+#include <assimp/Importer.hpp>
+
+#include <map>
+
+// ------------------------------------------------------------------------------------------------
+template <class T>
+inline bool SetGenericProperty(std::map<unsigned int, T> &list,
+ const char *szName, const T &value) {
+ ai_assert(nullptr != szName);
+ const uint32_t hash = SuperFastHash(szName);
+
+ typename std::map<unsigned int, T>::iterator it = list.find(hash);
+ if (it == list.end()) {
+ list.insert(std::pair<unsigned int, T>(hash, value));
+ return false;
+ }
+ (*it).second = value;
+
+ return true;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <class T>
+inline const T &GetGenericProperty(const std::map<unsigned int, T> &list,
+ const char *szName, const T &errorReturn) {
+ ai_assert(nullptr != szName);
+ const uint32_t hash = SuperFastHash(szName);
+
+ typename std::map<unsigned int, T>::const_iterator it = list.find(hash);
+ if (it == list.end()) {
+ return errorReturn;
+ }
+
+ return (*it).second;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Special version for pointer types - they will be deleted when replaced with another value
+// passing nullptr removes the whole property
+template <class T>
+inline void SetGenericPropertyPtr(std::map<unsigned int, T *> &list,
+ const char *szName, T *value, bool *bWasExisting = nullptr) {
+ ai_assert(nullptr != szName);
+ const uint32_t hash = SuperFastHash(szName);
+
+ typename std::map<unsigned int, T *>::iterator it = list.find(hash);
+ if (it == list.end()) {
+ if (bWasExisting) {
+ *bWasExisting = false;
+ }
+
+ list.insert(std::pair<unsigned int, T *>(hash, value));
+ return;
+ }
+ if ((*it).second != value) {
+ delete (*it).second;
+ (*it).second = value;
+ }
+ if (!value) {
+ list.erase(it);
+ }
+ if (bWasExisting) {
+ *bWasExisting = true;
+ }
+}
+
+// ------------------------------------------------------------------------------------------------
+template <class T>
+inline bool HasGenericProperty(const std::map<unsigned int, T> &list,
+ const char *szName) {
+ ai_assert(nullptr != szName);
+ const uint32_t hash = SuperFastHash(szName);
+
+ typename std::map<unsigned int, T>::const_iterator it = list.find(hash);
+ if (it == list.end()) {
+ return false;
+ }
+
+ return true;
+}
+
+#endif // !! AI_GENERIC_PROPERTY_H_INCLUDED
diff --git a/src/mesh/assimp-master/include/assimp/GltfMaterial.h b/src/mesh/assimp-master/include/assimp/GltfMaterial.h
new file mode 100644
index 0000000..86ca889
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/GltfMaterial.h
@@ -0,0 +1,74 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file GltfMaterial.h
+ * @brief glTF-specific material macros
+ * These will be made generic at some future date
+ */
+
+#ifndef AI_GLTFMATERIAL_H_INC
+#define AI_GLTFMATERIAL_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/material.h>
+
+#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLICROUGHNESS_TEXTURE aiTextureType_UNKNOWN, 0
+#define AI_MATKEY_GLTF_ALPHAMODE "$mat.gltf.alphaMode", 0, 0
+#define AI_MATKEY_GLTF_ALPHACUTOFF "$mat.gltf.alphaCutoff", 0, 0
+
+#define _AI_MATKEY_GLTF_MAPPINGNAME_BASE "$tex.mappingname"
+#define _AI_MATKEY_GLTF_MAPPINGID_BASE "$tex.mappingid"
+#define _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE "$tex.mappingfiltermag"
+#define _AI_MATKEY_GLTF_MAPPINGFILTER_MIN_BASE "$tex.mappingfiltermin"
+#define _AI_MATKEY_GLTF_SCALE_BASE "$tex.scale"
+#define _AI_MATKEY_GLTF_STRENGTH_BASE "$tex.strength"
+
+#define AI_MATKEY_GLTF_MAPPINGNAME(type, N) _AI_MATKEY_GLTF_MAPPINGNAME_BASE, type, N
+#define AI_MATKEY_GLTF_MAPPINGID(type, N) _AI_MATKEY_GLTF_MAPPINGID_BASE, type, N
+#define AI_MATKEY_GLTF_MAPPINGFILTER_MAG(type, N) _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE, type, N
+#define AI_MATKEY_GLTF_MAPPINGFILTER_MIN(type, N) _AI_MATKEY_GLTF_MAPPINGFILTER_MIN_BASE, type, N
+#define AI_MATKEY_GLTF_TEXTURE_SCALE(type, N) _AI_MATKEY_GLTF_SCALE_BASE, type, N
+#define AI_MATKEY_GLTF_TEXTURE_STRENGTH(type, N) _AI_MATKEY_GLTF_STRENGTH_BASE, type, N
+
+#endif
diff --git a/src/mesh/assimp-master/include/assimp/Hash.h b/src/mesh/assimp-master/include/assimp/Hash.h
new file mode 100644
index 0000000..5a02f5f
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Hash.h
@@ -0,0 +1,126 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#pragma once
+#ifndef AI_HASH_H_INCLUDED
+#define AI_HASH_H_INCLUDED
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <stdint.h>
+#include <string.h>
+
+// ------------------------------------------------------------------------------------------------
+// Hashing function taken from
+// http://www.azillionmonkeys.com/qed/hash.html
+// (incremental version)
+//
+// This code is Copyright 2004-2008 by Paul Hsieh. It is used here in the belief that
+// Assimp's license is considered compatible with Pauls's derivative license as specified
+// on his web page.
+//
+// (stdint.h should have been been included here)
+// ------------------------------------------------------------------------------------------------
+#undef get16bits
+#if (defined(__GNUC__) && defined(__i386__)) || defined(__WATCOMC__) \
+ || defined(_MSC_VER) || defined (__BORLANDC__) || defined (__TURBOC__)
+#define get16bits(d) (*((const uint16_t *) (d)))
+#endif
+
+#if !defined (get16bits)
+#define get16bits(d) ((((uint32_t)(((const uint8_t *)(d))[1])) << 8)\
+ +(uint32_t)(((const uint8_t *)(d))[0]) )
+#endif
+
+// ------------------------------------------------------------------------------------------------
+inline uint32_t SuperFastHash (const char * data, uint32_t len = 0, uint32_t hash = 0) {
+uint32_t tmp;
+int rem;
+size_t offset;
+
+ if (!data) return 0;
+ if (!len)len = (uint32_t)::strlen(data);
+
+ rem = len & 3;
+ len >>= 2;
+
+ /* Main loop */
+ for (;len > 0; len--) {
+ hash += get16bits (data);
+ tmp = (get16bits (data+2) << 11) ^ hash;
+ hash = (hash << 16) ^ tmp;
+ data += 2*sizeof (uint16_t);
+ hash += hash >> 11;
+ }
+
+ /* Handle end cases */
+ switch (rem) {
+ case 3: hash += get16bits (data);
+ hash ^= hash << 16;
+ offset = static_cast<size_t>(sizeof(uint16_t));
+ if (offset < 0) {
+ return 0;
+ }
+ hash ^= data[offset] << 18;
+ hash += hash >> 11;
+ break;
+ case 2: hash += get16bits (data);
+ hash ^= hash << 11;
+ hash += hash >> 17;
+ break;
+ case 1: hash += *data;
+ hash ^= hash << 10;
+ hash += hash >> 1;
+ }
+
+ /* Force "avalanching" of final 127 bits */
+ hash ^= hash << 3;
+ hash += hash >> 5;
+ hash ^= hash << 4;
+ hash += hash >> 17;
+ hash ^= hash << 25;
+ hash += hash >> 6;
+
+ return hash;
+}
+
+#endif // !! AI_HASH_H_INCLUDED
diff --git a/src/mesh/assimp-master/include/assimp/IOStream.hpp b/src/mesh/assimp-master/include/assimp/IOStream.hpp
new file mode 100644
index 0000000..5e19f51
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/IOStream.hpp
@@ -0,0 +1,144 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file IOStream.hpp
+ * @brief File I/O wrappers for C++.
+ */
+
+#pragma once
+#ifndef AI_IOSTREAM_H_INC
+#define AI_IOSTREAM_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/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() AI_NO_EXCEPT;
+
+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
+
+// ----------------------------------------------------------------------------------
+AI_FORCE_INLINE
+IOStream::IOStream() AI_NO_EXCEPT {
+ // empty
+}
+
+// ----------------------------------------------------------------------------------
+AI_FORCE_INLINE
+IOStream::~IOStream() {
+ // empty
+}
+// ----------------------------------------------------------------------------------
+
+} //!namespace Assimp
+
+#endif //!!AI_IOSTREAM_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/IOStreamBuffer.h b/src/mesh/assimp-master/include/assimp/IOStreamBuffer.h
new file mode 100644
index 0000000..09ca1c9
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/IOStreamBuffer.h
@@ -0,0 +1,352 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#pragma once
+#ifndef AI_IOSTREAMBUFFER_H_INC
+#define AI_IOSTREAMBUFFER_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/ParsingUtils.h>
+#include <assimp/types.h>
+#include <assimp/IOStream.hpp>
+
+#include <vector>
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/**
+ * Implementation of a cached stream buffer.
+ */
+template <class T>
+class IOStreamBuffer {
+public:
+ /// @brief The class constructor.
+ IOStreamBuffer(size_t cache = 4096 * 4096);
+
+ /// @brief The class destructor.
+ ~IOStreamBuffer();
+
+ /// @brief Will open the cached access for a given stream.
+ /// @param stream The stream to cache.
+ /// @return true if successful.
+ bool open(IOStream *stream);
+
+ /// @brief Will close the cached access.
+ /// @return true if successful.
+ bool close();
+
+ /// @brief Returns the file-size.
+ /// @return The file-size.
+ size_t size() const;
+
+ /// @brief Returns the cache size.
+ /// @return The cache size.
+ size_t cacheSize() const;
+
+ /// @brief Will read the next block.
+ /// @return true if successful.
+ bool readNextBlock();
+
+ /// @brief Returns the number of blocks to read.
+ /// @return The number of blocks.
+ size_t getNumBlocks() const;
+
+ /// @brief Returns the current block index.
+ /// @return The current block index.
+ size_t getCurrentBlockIndex() const;
+
+ /// @brief Returns the current file pos.
+ /// @return The current file pos.
+ size_t getFilePos() const;
+
+ /// @brief Will read the next line.
+ /// @param buffer The buffer for the next line.
+ /// @return true if successful.
+ bool getNextDataLine(std::vector<T> &buffer, T continuationToken);
+
+ /// @brief Will read the next line ascii or binary end line char.
+ /// @param buffer The buffer for the next line.
+ /// @return true if successful.
+ bool getNextLine(std::vector<T> &buffer);
+
+ /// @brief Will read the next block.
+ /// @param buffer The buffer for the next block.
+ /// @return true if successful.
+ bool getNextBlock(std::vector<T> &buffer);
+
+private:
+ IOStream *m_stream;
+ size_t m_filesize;
+ size_t m_cacheSize;
+ size_t m_numBlocks;
+ size_t m_blockIdx;
+ std::vector<T> m_cache;
+ size_t m_cachePos;
+ size_t m_filePos;
+};
+
+template <class T>
+AI_FORCE_INLINE IOStreamBuffer<T>::IOStreamBuffer(size_t cache) :
+ m_stream(nullptr),
+ m_filesize(0),
+ m_cacheSize(cache),
+ m_numBlocks(0),
+ m_blockIdx(0),
+ m_cachePos(0),
+ m_filePos(0) {
+ m_cache.resize(cache);
+ std::fill(m_cache.begin(), m_cache.end(), '\n');
+}
+
+template <class T>
+AI_FORCE_INLINE IOStreamBuffer<T>::~IOStreamBuffer() {
+ // empty
+}
+
+template <class T>
+AI_FORCE_INLINE bool IOStreamBuffer<T>::open(IOStream *stream) {
+ // file still opened!
+ if (nullptr != m_stream) {
+ return false;
+ }
+
+ // Invalid stream pointer
+ if (nullptr == stream) {
+ return false;
+ }
+
+ m_stream = stream;
+ m_filesize = m_stream->FileSize();
+ if (m_filesize == 0) {
+ return false;
+ }
+ if (m_filesize < m_cacheSize) {
+ m_cacheSize = m_filesize;
+ }
+
+ m_numBlocks = m_filesize / m_cacheSize;
+ if ((m_filesize % m_cacheSize) > 0) {
+ m_numBlocks++;
+ }
+
+ return true;
+}
+
+template <class T>
+AI_FORCE_INLINE bool IOStreamBuffer<T>::close() {
+ if (nullptr == m_stream) {
+ return false;
+ }
+
+ // init counters and state vars
+ m_stream = nullptr;
+ m_filesize = 0;
+ m_numBlocks = 0;
+ m_blockIdx = 0;
+ m_cachePos = 0;
+ m_filePos = 0;
+
+ return true;
+}
+
+template <class T>
+AI_FORCE_INLINE
+ size_t
+ IOStreamBuffer<T>::size() const {
+ return m_filesize;
+}
+
+template <class T>
+AI_FORCE_INLINE
+ size_t
+ IOStreamBuffer<T>::cacheSize() const {
+ return m_cacheSize;
+}
+
+template <class T>
+AI_FORCE_INLINE bool IOStreamBuffer<T>::readNextBlock() {
+ m_stream->Seek(m_filePos, aiOrigin_SET);
+ size_t readLen = m_stream->Read(&m_cache[0], sizeof(T), m_cacheSize);
+ if (readLen == 0) {
+ return false;
+ }
+ if (readLen < m_cacheSize) {
+ m_cacheSize = readLen;
+ }
+ m_filePos += m_cacheSize;
+ m_cachePos = 0;
+ m_blockIdx++;
+
+ return true;
+}
+
+template <class T>
+AI_FORCE_INLINE size_t IOStreamBuffer<T>::getNumBlocks() const {
+ return m_numBlocks;
+}
+
+template <class T>
+AI_FORCE_INLINE size_t IOStreamBuffer<T>::getCurrentBlockIndex() const {
+ return m_blockIdx;
+}
+
+template <class T>
+AI_FORCE_INLINE size_t IOStreamBuffer<T>::getFilePos() const {
+ return m_filePos;
+}
+
+template <class T>
+AI_FORCE_INLINE bool IOStreamBuffer<T>::getNextDataLine(std::vector<T> &buffer, T continuationToken) {
+ buffer.resize(m_cacheSize);
+ if (m_cachePos >= m_cacheSize || 0 == m_filePos) {
+ if (!readNextBlock()) {
+ return false;
+ }
+ }
+
+ size_t i = 0;
+ for (;;) {
+ if (continuationToken == m_cache[m_cachePos] && IsLineEnd(m_cache[m_cachePos + 1])) {
+ ++m_cachePos;
+ while (m_cache[m_cachePos] != '\n') {
+ ++m_cachePos;
+ }
+ ++m_cachePos;
+ } else if (IsLineEnd(m_cache[m_cachePos])) {
+ break;
+ }
+
+ buffer[i] = m_cache[m_cachePos];
+ ++m_cachePos;
+ ++i;
+
+ if(i == buffer.size()) {
+ buffer.resize(buffer.size() * 2);
+ }
+
+ if (m_cachePos >= size()) {
+ break;
+ }
+ if (m_cachePos >= m_cacheSize) {
+ if (!readNextBlock()) {
+ return false;
+ }
+ }
+ }
+
+ buffer[i] = '\n';
+ ++m_cachePos;
+
+ return true;
+}
+
+static AI_FORCE_INLINE bool isEndOfCache(size_t pos, size_t cacheSize) {
+ return (pos == cacheSize);
+}
+
+template <class T>
+AI_FORCE_INLINE bool IOStreamBuffer<T>::getNextLine(std::vector<T> &buffer) {
+ buffer.resize(m_cacheSize);
+ if (isEndOfCache(m_cachePos, m_cacheSize) || 0 == m_filePos) {
+ if (!readNextBlock()) {
+ return false;
+ }
+ }
+
+ if (IsLineEnd(m_cache[m_cachePos])) {
+ // skip line end
+ while (m_cache[m_cachePos] != '\n') {
+ ++m_cachePos;
+ }
+ ++m_cachePos;
+ if (isEndOfCache(m_cachePos, m_cacheSize)) {
+ if (!readNextBlock()) {
+ return false;
+ }
+ }
+ }
+
+ size_t i(0);
+ while (!IsLineEnd(m_cache[m_cachePos])) {
+ buffer[i] = m_cache[m_cachePos];
+ ++m_cachePos;
+ ++i;
+
+ if(i == buffer.size()) {
+ buffer.resize(buffer.size() * 2);
+ }
+
+ if (m_cachePos >= m_cacheSize) {
+ if (!readNextBlock()) {
+ return false;
+ }
+ }
+ }
+ buffer[i] = '\n';
+ ++m_cachePos;
+
+ return true;
+}
+
+template <class T>
+AI_FORCE_INLINE bool IOStreamBuffer<T>::getNextBlock(std::vector<T> &buffer) {
+ // Return the last block-value if getNextLine was used before
+ if (0 != m_cachePos) {
+ buffer = std::vector<T>(m_cache.begin() + m_cachePos, m_cache.end());
+ m_cachePos = 0;
+ } else {
+ if (!readNextBlock()) {
+ return false;
+ }
+
+ buffer = std::vector<T>(m_cache.begin(), m_cache.end());
+ }
+
+ return true;
+}
+
+} // namespace Assimp
+
+#endif // AI_IOSTREAMBUFFER_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/IOSystem.hpp b/src/mesh/assimp-master/include/assimp/IOSystem.hpp
new file mode 100644
index 0000000..e67a075
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/IOSystem.hpp
@@ -0,0 +1,344 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file 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
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#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 <cstdlib>
+# include <cstdio>
+#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() AI_NO_EXCEPT;
+
+ // -------------------------------------------------------------------
+ /** @brief Virtual destructor.
+ *
+ * It is safe to be called from within DLL Assimp, we're constructed
+ * on Assimp's heap.
+ */
+ virtual ~IOSystem();
+
+ // -------------------------------------------------------------------
+ /** @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 );
+
+ // -------------------------------------------------------------------
+ /**
+ * @brief Will delete the given file.
+ * @param file [in] The filename
+ * @return true, if the file wase deleted, false if not.
+ */
+ virtual bool DeleteFile(const std::string &file);
+
+private:
+ std::vector<std::string> m_pathStack;
+};
+
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE IOSystem::IOSystem() AI_NO_EXCEPT :
+ 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 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
diff --git a/src/mesh/assimp-master/include/assimp/Importer.hpp b/src/mesh/assimp-master/include/assimp/Importer.hpp
new file mode 100644
index 0000000..05a1513
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Importer.hpp
@@ -0,0 +1,685 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Importer.hpp
+ * @brief Defines the C++-API to the Open Asset Import Library.
+ */
+#pragma once
+#ifndef AI_ASSIMP_HPP_INC
+#define AI_ASSIMP_HPP_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#ifndef __cplusplus
+#error This header requires C++ to be used. Use assimp.h for plain C.
+#endif // __cplusplus
+
+// Public ASSIMP data structures
+#include <assimp/types.h>
+
+#include <exception>
+
+namespace Assimp {
+// =======================================================================
+// Public interface to Assimp
+class Importer;
+class IOStream;
+class IOSystem;
+class ProgressHandler;
+
+// =======================================================================
+// Plugin development
+//
+// Include the following headers for the declarations:
+// BaseImporter.h
+// BaseProcess.h
+class BaseImporter;
+class BaseProcess;
+class SharedPostProcessInfo;
+class BatchLoader;
+
+// =======================================================================
+// Holy stuff, only for members of the high council of the Jedi.
+class ImporterPimpl;
+} // namespace Assimp
+
+#define AI_PROPERTY_WAS_NOT_EXISTING 0xffffffff
+
+struct aiScene;
+
+// importerdesc.h
+struct aiImporterDesc;
+
+/** @namespace Assimp Assimp's CPP-API and all internal APIs */
+namespace Assimp {
+
+// ----------------------------------------------------------------------------------
+/** CPP-API: The Importer class forms an C++ interface to the functionality of the
+* Open Asset Import Library.
+*
+* Create an object of this class and call ReadFile() to import a file.
+* If the import succeeds, the function returns a pointer to the imported data.
+* The data remains property of the object, it is intended to be accessed
+* read-only. The imported data will be destroyed along with the Importer
+* object. If the import fails, ReadFile() returns a nullptr pointer. In this
+* case you can retrieve a human-readable error description be calling
+* GetErrorString(). You can call ReadFile() multiple times with a single Importer
+* instance. Actually, constructing Importer objects involves quite many
+* allocations and may take some time, so it's better to reuse them as often as
+* possible.
+*
+* If you need the Importer to do custom file handling to access the files,
+* implement IOSystem and IOStream and supply an instance of your custom
+* IOSystem implementation by calling SetIOHandler() before calling ReadFile().
+* If you do not assign a custion IO handler, a default handler using the
+* standard C++ IO logic will be used.
+*
+* @note One Importer instance is not thread-safe. If you use multiple
+* threads for loading, each thread should maintain its own Importer instance.
+*/
+class ASSIMP_API Importer {
+public:
+ /**
+ * @brief The upper limit for hints.
+ */
+ static const unsigned int MaxLenHint = 200;
+
+public:
+ // -------------------------------------------------------------------
+ /** Constructor. Creates an empty importer object.
+ *
+ * Call ReadFile() to start the import process. The configuration
+ * property table is initially empty.
+ */
+ Importer();
+
+ // -------------------------------------------------------------------
+ /** Copy constructor.
+ *
+ * This copies the configuration properties of another Importer.
+ * If this Importer owns a scene it won't be copied.
+ * Call ReadFile() to start the import process.
+ */
+ Importer(const Importer &other) = delete;
+
+ // -------------------------------------------------------------------
+ /** Assignment operator has been deleted
+ */
+ Importer &operator=(const Importer &) = delete;
+
+ // -------------------------------------------------------------------
+ /** Destructor. The object kept ownership of the imported data,
+ * which now will be destroyed along with the object.
+ */
+ ~Importer();
+
+ // -------------------------------------------------------------------
+ /** Registers a new loader.
+ *
+ * @param pImp Importer to be added. The Importer instance takes
+ * ownership of the pointer, so it will be automatically deleted
+ * with the Importer instance.
+ * @return AI_SUCCESS if the loader has been added. The registration
+ * fails if there is already a loader for a specific file extension.
+ */
+ aiReturn RegisterLoader(BaseImporter *pImp);
+
+ // -------------------------------------------------------------------
+ /** Unregisters a loader.
+ *
+ * @param pImp Importer to be unregistered.
+ * @return AI_SUCCESS if the loader has been removed. The function
+ * fails if the loader is currently in use (this could happen
+ * if the #Importer instance is used by more than one thread) or
+ * if it has not yet been registered.
+ */
+ aiReturn UnregisterLoader(BaseImporter *pImp);
+
+ // -------------------------------------------------------------------
+ /** Registers a new post-process step.
+ *
+ * At the moment, there's a small limitation: new post processing
+ * steps are added to end of the list, or in other words, executed
+ * last, after all built-in steps.
+ * @param pImp Post-process step to be added. The Importer instance
+ * takes ownership of the pointer, so it will be automatically
+ * deleted with the Importer instance.
+ * @return AI_SUCCESS if the step has been added correctly.
+ */
+ aiReturn RegisterPPStep(BaseProcess *pImp);
+
+ // -------------------------------------------------------------------
+ /** Unregisters a post-process step.
+ *
+ * @param pImp Step to be unregistered.
+ * @return AI_SUCCESS if the step has been removed. The function
+ * fails if the step is currently in use (this could happen
+ * if the #Importer instance is used by more than one thread) or
+ * if it has not yet been registered.
+ */
+ aiReturn UnregisterPPStep(BaseProcess *pImp);
+
+ // -------------------------------------------------------------------
+ /** Set an integer configuration property.
+ * @param szName Name of the property. All supported properties
+ * are defined in the aiConfig.g header (all constants share the
+ * prefix AI_CONFIG_XXX and are simple strings).
+ * @param iValue New value of the property
+ * @return true if the property was set before. The new value replaces
+ * the previous value in this case.
+ * @note Property of different types (float, int, string ..) are kept
+ * on different stacks, so calling SetPropertyInteger() for a
+ * floating-point property has no effect - the loader will call
+ * GetPropertyFloat() to read the property, but it won't be there.
+ */
+ bool SetPropertyInteger(const char *szName, int iValue);
+
+ // -------------------------------------------------------------------
+ /** Set a boolean configuration property. Boolean properties
+ * are stored on the integer stack internally so it's possible
+ * to set them via #SetPropertyBool and query them with
+ * #GetPropertyBool and vice versa.
+ * @see SetPropertyInteger()
+ */
+ bool SetPropertyBool(const char *szName, bool value) {
+ return SetPropertyInteger(szName, value);
+ }
+
+ // -------------------------------------------------------------------
+ /** Set a floating-point configuration property.
+ * @see SetPropertyInteger()
+ */
+ bool SetPropertyFloat(const char *szName, ai_real fValue);
+
+ // -------------------------------------------------------------------
+ /** Set a string configuration property.
+ * @see SetPropertyInteger()
+ */
+ bool SetPropertyString(const char *szName, const std::string &sValue);
+
+ // -------------------------------------------------------------------
+ /** Set a matrix configuration property.
+ * @see SetPropertyInteger()
+ */
+ bool SetPropertyMatrix(const char *szName, const aiMatrix4x4 &sValue);
+
+ // -------------------------------------------------------------------
+ /** Set a pointer configuration property.
+ * @see SetPropertyInteger()
+ */
+ bool SetPropertyPointer(const char *szName, void *sValue);
+
+ // -------------------------------------------------------------------
+ /** Get a configuration property.
+ * @param szName Name of the property. All supported properties
+ * are defined in the aiConfig.g header (all constants share the
+ * prefix AI_CONFIG_XXX).
+ * @param iErrorReturn Value that is returned if the property
+ * is not found.
+ * @return Current value of the property
+ * @note Property of different types (float, int, string ..) are kept
+ * on different lists, so calling SetPropertyInteger() for a
+ * floating-point property has no effect - the loader will call
+ * GetPropertyFloat() to read the property, but it won't be there.
+ */
+ int GetPropertyInteger(const char *szName,
+ int iErrorReturn = 0xffffffff) const;
+
+ // -------------------------------------------------------------------
+ /** Get a boolean configuration property. Boolean properties
+ * are stored on the integer stack internally so it's possible
+ * to set them via #SetPropertyBool and query them with
+ * #GetPropertyBool and vice versa.
+ * @see GetPropertyInteger()
+ */
+ bool GetPropertyBool(const char *szName, bool bErrorReturn = false) const {
+ return GetPropertyInteger(szName, bErrorReturn) != 0;
+ }
+
+ // -------------------------------------------------------------------
+ /** Get a floating-point configuration property
+ * @see GetPropertyInteger()
+ */
+ ai_real GetPropertyFloat(const char *szName,
+ ai_real fErrorReturn = 10e10) const;
+
+ // -------------------------------------------------------------------
+ /** Get a string configuration property
+ *
+ * The return value remains valid until the property is modified.
+ * @see GetPropertyInteger()
+ */
+ std::string GetPropertyString(const char *szName,
+ const std::string &sErrorReturn = std::string()) const;
+
+ // -------------------------------------------------------------------
+ /** Get a matrix configuration property
+ *
+ * The return value remains valid until the property is modified.
+ * @see GetPropertyInteger()
+ */
+ aiMatrix4x4 GetPropertyMatrix(const char *szName,
+ const aiMatrix4x4 &sErrorReturn = aiMatrix4x4()) const;
+
+ // -------------------------------------------------------------------
+ /** Get a pointer configuration property
+ *
+ * The return value remains valid until the property is modified.
+ * @see GetPropertyInteger()
+ */
+ void* GetPropertyPointer(const char *szName,
+ void *sErrorReturn = nullptr) const;
+
+ // -------------------------------------------------------------------
+ /** Supplies a custom IO handler to the importer to use to open and
+ * access files. If you need the importer to use custom IO logic to
+ * access the files, you need to provide a custom implementation of
+ * IOSystem and IOFile to the importer. Then create an instance of
+ * your custom IOSystem implementation and supply it by this function.
+ *
+ * The Importer takes ownership of the object and will destroy it
+ * afterwards. The previously assigned handler will be deleted.
+ * Pass nullptr to take again ownership of your IOSystem and reset Assimp
+ * to use its default implementation.
+ *
+ * @param pIOHandler The IO handler to be used in all file accesses
+ * of the Importer.
+ */
+ void SetIOHandler(IOSystem *pIOHandler);
+
+ // -------------------------------------------------------------------
+ /** Retrieves the IO handler that is currently set.
+ * You can use #IsDefaultIOHandler() to check whether the returned
+ * interface is the default IO handler provided by ASSIMP. The default
+ * handler is active as long the application doesn't supply its own
+ * custom IO handler via #SetIOHandler().
+ * @return A valid IOSystem interface, never nullptr.
+ */
+ IOSystem *GetIOHandler() const;
+
+ // -------------------------------------------------------------------
+ /** Checks whether a default IO handler is active
+ * A default handler is active as long the application doesn't
+ * supply its own custom IO handler via #SetIOHandler().
+ * @return true by default
+ */
+ bool IsDefaultIOHandler() const;
+
+ // -------------------------------------------------------------------
+ /** Supplies a custom progress handler to the importer. This
+ * interface exposes an #Update() callback, which is called
+ * more or less periodically (please don't sue us if it
+ * isn't as periodically as you'd like it to have ...).
+ * This can be used to implement progress bars and loading
+ * timeouts.
+ * @param pHandler Progress callback interface. Pass nullptr to
+ * disable progress reporting.
+ * @note Progress handlers can be used to abort the loading
+ * at almost any time.*/
+ void SetProgressHandler(ProgressHandler *pHandler);
+
+ // -------------------------------------------------------------------
+ /** Retrieves the progress handler that is currently set.
+ * You can use #IsDefaultProgressHandler() to check whether the returned
+ * interface is the default handler provided by ASSIMP. The default
+ * handler is active as long the application doesn't supply its own
+ * custom handler via #SetProgressHandler().
+ * @return A valid ProgressHandler interface, never nullptr.
+ */
+ ProgressHandler *GetProgressHandler() const;
+
+ // -------------------------------------------------------------------
+ /** Checks whether a default progress handler is active
+ * A default handler is active as long the application doesn't
+ * supply its own custom progress handler via #SetProgressHandler().
+ * @return true by default
+ */
+ bool IsDefaultProgressHandler() const;
+
+ // -------------------------------------------------------------------
+ /** @brief Check whether a given set of post-processing flags
+ * is supported.
+ *
+ * Some flags are mutually exclusive, others are probably
+ * not available because your excluded them from your
+ * Assimp builds. Calling this function is recommended if
+ * you're unsure.
+ *
+ * @param pFlags Bitwise combination of the aiPostProcess flags.
+ * @return true if this flag combination is fine.
+ */
+ bool ValidateFlags(unsigned int pFlags) const;
+
+ // -------------------------------------------------------------------
+ /** Reads the given file and returns its contents if successful.
+ *
+ * If the call succeeds, the contents of the file are returned as a
+ * pointer to an aiScene object. The returned data is intended to be
+ * read-only, the importer object keeps ownership of the data and will
+ * destroy it upon destruction. If the import fails, nullptr is returned.
+ * A human-readable error description can be retrieved by calling
+ * GetErrorString(). The previous scene will be deleted during this call.
+ * @param pFile Path and filename to the file to be imported.
+ * @param pFlags Optional post processing steps to be executed after
+ * a successful import. Provide a bitwise combination of the
+ * #aiPostProcessSteps flags. If you wish to inspect the imported
+ * scene first in order to fine-tune your post-processing setup,
+ * consider to use #ApplyPostProcessing().
+ * @return A pointer to the imported data, nullptr if the import failed.
+ * The pointer to the scene remains in possession of the Importer
+ * instance. Use GetOrphanedScene() to take ownership of it.
+ *
+ * @note Assimp is able to determine the file format of a file
+ * automatically.
+ */
+ const aiScene *ReadFile(
+ const char *pFile,
+ unsigned int pFlags);
+
+ // -------------------------------------------------------------------
+ /** Reads the given file from a memory buffer and returns its
+ * contents if successful.
+ *
+ * If the call succeeds, the contents of the file are returned as a
+ * pointer to an aiScene object. The returned data is intended to be
+ * read-only, the importer object keeps ownership of the data and will
+ * destroy it upon destruction. If the import fails, nullptr is returned.
+ * A human-readable error description can be retrieved by calling
+ * GetErrorString(). The previous scene will be deleted during this call.
+ * Calling this method doesn't affect the active IOSystem.
+ * @param pBuffer Pointer to the file data
+ * @param pLength Length of pBuffer, in bytes
+ * @param pFlags Optional post processing steps to be executed after
+ * a successful import. Provide a bitwise combination of the
+ * #aiPostProcessSteps flags. If you wish to inspect the imported
+ * scene first in order to fine-tune your post-processing setup,
+ * consider to use #ApplyPostProcessing().
+ * @param pHint An additional hint to the library. If this is a non
+ * empty string, the library looks for a loader to support
+ * the file extension specified by pHint and passes the file to
+ * the first matching loader. If this loader is unable to completely
+ * the request, the library continues and tries to determine the
+ * file format on its own, a task that may or may not be successful.
+ * Check the return value, and you'll know ...
+ * @return A pointer to the imported data, nullptr if the import failed.
+ * The pointer to the scene remains in possession of the Importer
+ * instance. Use GetOrphanedScene() to take ownership of it.
+ *
+ * @note This is a straightforward way to decode models from memory
+ * buffers, but it doesn't handle model formats that spread their
+ * data across multiple files or even directories. Examples include
+ * OBJ or MD3, which outsource parts of their material info into
+ * external scripts. If you need full functionality, provide
+ * a custom IOSystem to make Assimp find these files and use
+ * the regular ReadFile() API.
+ */
+ const aiScene *ReadFileFromMemory(
+ const void *pBuffer,
+ size_t pLength,
+ unsigned int pFlags,
+ const char *pHint = "");
+
+ // -------------------------------------------------------------------
+ /** Apply post-processing to an already-imported scene.
+ *
+ * This is strictly equivalent to calling #ReadFile() with the same
+ * flags. However, you can use this separate function to inspect
+ * the imported scene first to fine-tune your post-processing setup.
+ * @param pFlags Provide a bitwise combination of the
+ * #aiPostProcessSteps flags.
+ * @return A pointer to the post-processed data. This is still the
+ * same as the pointer returned by #ReadFile(). However, if
+ * post-processing fails, the scene could now be nullptr.
+ * That's quite a rare case, post processing steps are not really
+ * designed to 'fail'. To be exact, the #aiProcess_ValidateDS
+ * flag is currently the only post processing step which can actually
+ * cause the scene to be reset to nullptr.
+ *
+ * @note The method does nothing if no scene is currently bound
+ * to the #Importer instance. */
+ const aiScene *ApplyPostProcessing(unsigned int pFlags);
+
+ const aiScene *ApplyCustomizedPostProcessing(BaseProcess *rootProcess, bool requestValidation);
+
+ // -------------------------------------------------------------------
+ /** @brief Reads the given file and returns its contents if successful.
+ *
+ * This function is provided for backward compatibility.
+ * See the const char* version for detailed docs.
+ * @see ReadFile(const char*, pFlags) */
+ const aiScene *ReadFile(
+ const std::string &pFile,
+ unsigned int pFlags);
+
+ // -------------------------------------------------------------------
+ /** Frees the current scene.
+ *
+ * The function does nothing if no scene has previously been
+ * read via ReadFile(). FreeScene() is called automatically by the
+ * destructor and ReadFile() itself. */
+ void FreeScene();
+
+ // -------------------------------------------------------------------
+ /** Returns an error description of an error that occurred in ReadFile().
+ *
+ * Returns an empty string if no error occurred.
+ * @return A description of the last error, an empty string if no
+ * error occurred. The string is never nullptr.
+ *
+ * @note The returned function remains valid until one of the
+ * following methods is called: #ReadFile(), #FreeScene(). */
+ const char *GetErrorString() const;
+
+ // -------------------------------------------------------------------
+ /** Returns an exception if one occurred during import.
+ *
+ * @return The last exception which occurred.
+ *
+ * @note The returned value remains valid until one of the
+ * following methods is called: #ReadFile(), #FreeScene(). */
+ const std::exception_ptr& GetException() const;
+
+ // -------------------------------------------------------------------
+ /** Returns the scene loaded by the last successful call to ReadFile()
+ *
+ * @return Current scene or nullptr if there is currently no scene loaded */
+ const aiScene *GetScene() const;
+
+ // -------------------------------------------------------------------
+ /** Returns the scene loaded by the last successful call to ReadFile()
+ * and releases the scene from the ownership of the Importer
+ * instance. The application is now responsible for deleting the
+ * scene. Any further calls to GetScene() or GetOrphanedScene()
+ * will return nullptr - until a new scene has been loaded via ReadFile().
+ *
+ * @return Current scene or nullptr if there is currently no scene loaded
+ * @note Use this method with maximal caution, and only if you have to.
+ * By design, aiScene's are exclusively maintained, allocated and
+ * deallocated by Assimp and no one else. The reasoning behind this
+ * is the golden rule that deallocations should always be done
+ * by the module that did the original allocation because heaps
+ * are not necessarily shared. GetOrphanedScene() enforces you
+ * to delete the returned scene by yourself, but this will only
+ * be fine if and only if you're using the same heap as assimp.
+ * On Windows, it's typically fine provided everything is linked
+ * against the multithreaded-dll version of the runtime library.
+ * It will work as well for static linkage with Assimp.*/
+ aiScene *GetOrphanedScene();
+
+ // -------------------------------------------------------------------
+ /** Returns whether a given file extension is supported by ASSIMP.
+ *
+ * @param szExtension Extension to be checked.
+ * Must include a trailing dot '.'. Example: ".3ds", ".md3".
+ * Cases-insensitive.
+ * @return true if the extension is supported, false otherwise */
+ bool IsExtensionSupported(const char *szExtension) const;
+
+ // -------------------------------------------------------------------
+ /** @brief Returns whether a given file extension is supported by ASSIMP.
+ *
+ * This function is provided for backward compatibility.
+ * See the const char* version for detailed and up-to-date docs.
+ * @see IsExtensionSupported(const char*) */
+ inline bool IsExtensionSupported(const std::string &szExtension) const;
+
+ // -------------------------------------------------------------------
+ /** Get a full list of all file extensions supported by ASSIMP.
+ *
+ * If a file extension is contained in the list this does of course not
+ * mean that ASSIMP is able to load all files with this extension ---
+ * it simply means there is an importer loaded which claims to handle
+ * files with this file extension.
+ * @param szOut String to receive the extension list.
+ * Format of the list: "*.3ds;*.obj;*.dae". This is useful for
+ * use with the WinAPI call GetOpenFileName(Ex). */
+ void GetExtensionList(aiString &szOut) const;
+
+ // -------------------------------------------------------------------
+ /** @brief Get a full list of all file extensions supported by ASSIMP.
+ *
+ * This function is provided for backward compatibility.
+ * See the aiString version for detailed and up-to-date docs.
+ * @see GetExtensionList(aiString&)*/
+ inline void GetExtensionList(std::string &szOut) const;
+
+ // -------------------------------------------------------------------
+ /** Get the number of importers currently registered with Assimp. */
+ size_t GetImporterCount() const;
+
+ // -------------------------------------------------------------------
+ /** Get meta data for the importer corresponding to a specific index..
+ *
+ * For the declaration of #aiImporterDesc, include <assimp/importerdesc.h>.
+ * @param index Index to query, must be within [0,GetImporterCount())
+ * @return Importer meta data structure, nullptr if the index does not
+ * exist or if the importer doesn't offer meta information (
+ * importers may do this at the cost of being hated by their peers).*/
+ const aiImporterDesc *GetImporterInfo(size_t index) const;
+
+ // -------------------------------------------------------------------
+ /** Find the importer corresponding to a specific index.
+ *
+ * @param index Index to query, must be within [0,GetImporterCount())
+ * @return Importer instance. nullptr if the index does not
+ * exist. */
+ BaseImporter *GetImporter(size_t index) const;
+
+ // -------------------------------------------------------------------
+ /** Find the importer corresponding to a specific file extension.
+ *
+ * This is quite similar to #IsExtensionSupported except a
+ * BaseImporter instance is returned.
+ * @param szExtension Extension to check for. The following formats
+ * are recognized (BAH being the file extension): "BAH" (comparison
+ * is case-insensitive), ".bah", "*.bah" (wild card and dot
+ * characters at the beginning of the extension are skipped).
+ * @return nullptr if no importer is found*/
+ BaseImporter *GetImporter(const char *szExtension) const;
+
+ // -------------------------------------------------------------------
+ /** Find the importer index corresponding to a specific file extension.
+ *
+ * @param szExtension Extension to check for. The following formats
+ * are recognized (BAH being the file extension): "BAH" (comparison
+ * is case-insensitive), ".bah", "*.bah" (wild card and dot
+ * characters at the beginning of the extension are skipped).
+ * @return (size_t)-1 if no importer is found */
+ size_t GetImporterIndex(const char *szExtension) const;
+
+ // -------------------------------------------------------------------
+ /** Returns the storage allocated by ASSIMP to hold the scene data
+ * in memory.
+ *
+ * This refers to the currently loaded file, see #ReadFile().
+ * @param in Data structure to be filled.
+ * @note The returned memory statistics refer to the actual
+ * size of the use data of the aiScene. Heap-related overhead
+ * is (naturally) not included.*/
+ void GetMemoryRequirements(aiMemoryInfo &in) const;
+
+ // -------------------------------------------------------------------
+ /** Enables "extra verbose" mode.
+ *
+ * 'Extra verbose' means the data structure is validated after *every*
+ * single post processing step to make sure everyone modifies the data
+ * structure in a well-defined manner. This is a debug feature and not
+ * intended for use in production environments. */
+ void SetExtraVerbose(bool bDo);
+
+ // -------------------------------------------------------------------
+ /** Private, do not use. */
+ ImporterPimpl *Pimpl() { return pimpl; }
+ const ImporterPimpl *Pimpl() const { return pimpl; }
+
+protected:
+ // Just because we don't want you to know how we're hacking around.
+ ImporterPimpl *pimpl;
+}; //! class Importer
+
+// ----------------------------------------------------------------------------
+// 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 const aiScene *Importer::ReadFile(const std::string &pFile, unsigned int pFlags) {
+ return ReadFile(pFile.c_str(), pFlags);
+}
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE void Importer::GetExtensionList(std::string &szOut) const {
+ aiString s;
+ GetExtensionList(s);
+ szOut = s.data;
+}
+// ----------------------------------------------------------------------------
+AI_FORCE_INLINE bool Importer::IsExtensionSupported(const std::string &szExtension) const {
+ return IsExtensionSupported(szExtension.c_str());
+}
+
+} // namespace Assimp
+
+#endif // AI_ASSIMP_HPP_INC
diff --git a/src/mesh/assimp-master/include/assimp/LineSplitter.h b/src/mesh/assimp-master/include/assimp/LineSplitter.h
new file mode 100644
index 0000000..a8aa665
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/LineSplitter.h
@@ -0,0 +1,273 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file LineSplitter.h
+ * @brief LineSplitter, a helper class to iterate through all lines
+ * of a file easily. Works with StreamReader.
+ */
+#pragma once
+#ifndef INCLUDED_LINE_SPLITTER_H
+#define INCLUDED_LINE_SPLITTER_H
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <stdexcept>
+#include <assimp/StreamReader.h>
+#include <assimp/ParsingUtils.h>
+
+namespace Assimp {
+
+// ------------------------------------------------------------------------------------------------
+/** Usage:
+@code
+for(LineSplitter splitter(stream);splitter;++splitter) {
+
+ if (*splitter == "hi!") {
+ ...
+ }
+ else if (splitter->substr(0,5) == "hello") {
+ ...
+ // access the third token in the line (tokens are space-separated)
+ if (strtol(splitter[2]) > 5) { .. }
+ }
+
+ ASSIMP_LOG_VERBOSE_DEBUG("Current line is: ", splitter.get_index());
+}
+@endcode
+*/
+// ------------------------------------------------------------------------------------------------
+class LineSplitter {
+public:
+ typedef size_t line_idx;
+
+ // -----------------------------------------
+ /** construct from existing stream reader
+ note: trim is *always* assumed true if skyp_empty_lines==true
+ */
+ LineSplitter(StreamReaderLE& stream, bool skip_empty_lines = true, bool trim = true);
+
+ ~LineSplitter();
+
+ // -----------------------------------------
+ /** pseudo-iterator increment */
+ LineSplitter& operator++();
+
+ // -----------------------------------------
+ LineSplitter& operator++(int);
+
+ // -----------------------------------------
+ /** get a pointer to the beginning of a particular token */
+ const char* operator[] (size_t idx) const;
+
+ // -----------------------------------------
+ /** extract the start positions of N tokens from the current line*/
+ template <size_t N>
+ void get_tokens(const char* (&tokens)[N]) const;
+
+ // -----------------------------------------
+ /** member access */
+ const std::string* operator -> () const;
+
+ std::string operator* () const;
+
+ // -----------------------------------------
+ /** boolean context */
+ operator bool() const;
+
+ // -----------------------------------------
+ /** line indices are zero-based, empty lines are included */
+ operator line_idx() const;
+
+ line_idx get_index() const;
+
+ // -----------------------------------------
+ /** access the underlying stream object */
+ StreamReaderLE& get_stream();
+
+ // -----------------------------------------
+ /** !strcmp((*this)->substr(0,strlen(check)),check) */
+ bool match_start(const char* check);
+
+ // -----------------------------------------
+ /** swallow the next call to ++, return the previous value. */
+ void swallow_next_increment();
+
+ LineSplitter( const LineSplitter & ) = delete;
+ LineSplitter(LineSplitter &&) = delete;
+ LineSplitter &operator = ( const LineSplitter & ) = delete;
+
+private:
+ line_idx mIdx;
+ std::string mCur;
+ StreamReaderLE& mStream;
+ bool mSwallow, mSkip_empty_lines, mTrim;
+};
+
+AI_FORCE_INLINE LineSplitter::LineSplitter(StreamReaderLE& stream, bool skip_empty_lines, bool trim ) :
+ mIdx(0),
+ mCur(),
+ mStream(stream),
+ mSwallow(),
+ mSkip_empty_lines(skip_empty_lines),
+ mTrim(trim) {
+ mCur.reserve(1024);
+ operator++();
+ mIdx = 0;
+}
+
+AI_FORCE_INLINE LineSplitter::~LineSplitter() {
+ // empty
+}
+
+AI_FORCE_INLINE LineSplitter& LineSplitter::operator++() {
+ if (mSwallow) {
+ mSwallow = false;
+ return *this;
+ }
+
+ if (!*this) {
+ throw std::logic_error("End of file, no more lines to be retrieved.");
+ }
+
+ char s;
+ mCur.clear();
+ while (mStream.GetRemainingSize() && (s = mStream.GetI1(), 1)) {
+ if (s == '\n' || s == '\r') {
+ if (mSkip_empty_lines) {
+ while (mStream.GetRemainingSize() && ((s = mStream.GetI1()) == ' ' || s == '\r' || s == '\n'));
+ if (mStream.GetRemainingSize()) {
+ mStream.IncPtr(-1);
+ }
+ } else {
+ // skip both potential line terminators but don't read past this line.
+ if (mStream.GetRemainingSize() && (s == '\r' && mStream.GetI1() != '\n')) {
+ mStream.IncPtr(-1);
+ }
+ if (mTrim) {
+ while (mStream.GetRemainingSize() && ((s = mStream.GetI1()) == ' ' || s == '\t'));
+ if (mStream.GetRemainingSize()) {
+ mStream.IncPtr(-1);
+ }
+ }
+ }
+ break;
+ }
+ mCur += s;
+ }
+ ++mIdx;
+
+ return *this;
+}
+
+AI_FORCE_INLINE LineSplitter &LineSplitter::operator++(int) {
+ return ++(*this);
+}
+
+AI_FORCE_INLINE const char *LineSplitter::operator[] (size_t idx) const {
+ const char* s = operator->()->c_str();
+
+ SkipSpaces(&s);
+ for (size_t i = 0; i < idx; ++i) {
+ for (; !IsSpace(*s); ++s) {
+ if (IsLineEnd(*s)) {
+ throw std::range_error("Token index out of range, EOL reached");
+ }
+ }
+ SkipSpaces(&s);
+ }
+ return s;
+}
+
+template <size_t N>
+AI_FORCE_INLINE void LineSplitter::get_tokens(const char* (&tokens)[N]) const {
+ const char* s = operator->()->c_str();
+
+ SkipSpaces(&s);
+ for (size_t i = 0; i < N; ++i) {
+ if (IsLineEnd(*s)) {
+ throw std::range_error("Token count out of range, EOL reached");
+ }
+ tokens[i] = s;
+
+ for (; *s && !IsSpace(*s); ++s);
+ SkipSpaces(&s);
+ }
+}
+
+AI_FORCE_INLINE const std::string* LineSplitter::operator -> () const {
+ return &mCur;
+}
+
+AI_FORCE_INLINE std::string LineSplitter::operator* () const {
+ return mCur;
+}
+
+AI_FORCE_INLINE LineSplitter::operator bool() const {
+ return mStream.GetRemainingSize() > 0;
+}
+
+AI_FORCE_INLINE LineSplitter::operator line_idx() const {
+ return mIdx;
+}
+
+AI_FORCE_INLINE LineSplitter::line_idx LineSplitter::get_index() const {
+ return mIdx;
+}
+
+AI_FORCE_INLINE StreamReaderLE &LineSplitter::get_stream() {
+ return mStream;
+}
+
+AI_FORCE_INLINE bool LineSplitter::match_start(const char* check) {
+ const size_t len = ::strlen(check);
+
+ return len <= mCur.length() && std::equal(check, check + len, mCur.begin());
+}
+
+AI_FORCE_INLINE void LineSplitter::swallow_next_increment() {
+ mSwallow = true;
+}
+
+} // Namespace Assimp
+
+#endif // INCLUDED_LINE_SPLITTER_H
diff --git a/src/mesh/assimp-master/include/assimp/LogAux.h b/src/mesh/assimp-master/include/assimp/LogAux.h
new file mode 100644
index 0000000..c7b86a1
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/LogAux.h
@@ -0,0 +1,117 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file LogAux.h
+ * @brief Common logging usage patterns for importer implementations
+ */
+#pragma once
+#ifndef INCLUDED_AI_LOGAUX_H
+#define INCLUDED_AI_LOGAUX_H
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/TinyFormatter.h>
+#include <assimp/Exceptional.h>
+#include <assimp/DefaultLogger.hpp>
+
+namespace Assimp {
+
+/// @brief Logger class, which will extend the class by log-functions.
+/// @tparam TDeriving
+template<class TDeriving>
+class LogFunctions {
+public:
+ // ------------------------------------------------------------------------------------------------
+ template<typename... T>
+ static void ThrowException(T&&... args)
+ {
+ throw DeadlyImportError(Prefix(), std::forward<T>(args)...);
+ }
+
+ // ------------------------------------------------------------------------------------------------
+ template<typename... T>
+ static void LogWarn(T&&... args) {
+ if (!DefaultLogger::isNullLogger()) {
+ ASSIMP_LOG_WARN(Prefix(), std::forward<T>(args)...);
+ }
+ }
+
+ // ------------------------------------------------------------------------------------------------
+ template<typename... T>
+ static void LogError(T&&... args) {
+ if (!DefaultLogger::isNullLogger()) {
+ ASSIMP_LOG_ERROR(Prefix(), std::forward<T>(args)...);
+ }
+ }
+
+ // ------------------------------------------------------------------------------------------------
+ template<typename... T>
+ static void LogInfo(T&&... args) {
+ if (!DefaultLogger::isNullLogger()) {
+ ASSIMP_LOG_INFO(Prefix(), std::forward<T>(args)...);
+ }
+ }
+
+ // ------------------------------------------------------------------------------------------------
+ template<typename... T>
+ static void LogDebug(T&&... args) {
+ if (!DefaultLogger::isNullLogger()) {
+ ASSIMP_LOG_DEBUG(Prefix(), std::forward<T>(args)...);
+ }
+ }
+
+ // ------------------------------------------------------------------------------------------------
+ template<typename... T>
+ static void LogVerboseDebug(T&&... args) {
+ if (!DefaultLogger::isNullLogger()) {
+ ASSIMP_LOG_VERBOSE_DEBUG(Prefix(), std::forward<T>(args)...);
+ }
+ }
+
+private:
+ static const char* Prefix();
+};
+
+} // ! Assimp
+
+#endif // INCLUDED_AI_LOGAUX_H
diff --git a/src/mesh/assimp-master/include/assimp/LogStream.hpp b/src/mesh/assimp-master/include/assimp/LogStream.hpp
new file mode 100644
index 0000000..0ac74c6
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/LogStream.hpp
@@ -0,0 +1,112 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file LogStream.hpp
+ * @brief Abstract base class 'LogStream', representing an output log stream.
+ */
+#pragma once
+#ifndef INCLUDED_AI_LOGSTREAM_H
+#define INCLUDED_AI_LOGSTREAM_H
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#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() AI_NO_EXCEPT;
+
+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 nullptr for the default implementation.
+ * @return New LogStream instance. */
+ static LogStream *createDefaultStream(aiDefaultLogStream stream,
+ const char *name = "AssimpLog.txt",
+ IOSystem *io = nullptr);
+
+}; // !class LogStream
+
+inline LogStream::LogStream() AI_NO_EXCEPT {
+ // empty
+}
+
+inline LogStream::~LogStream() {
+ // empty
+}
+
+} // Namespace Assimp
+
+#endif // INCLUDED_AI_LOGSTREAM_H
diff --git a/src/mesh/assimp-master/include/assimp/Logger.hpp b/src/mesh/assimp-master/include/assimp/Logger.hpp
new file mode 100644
index 0000000..54fd5d0
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Logger.hpp
@@ -0,0 +1,305 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Logger.hpp
+ * @brief Abstract base class 'Logger', base of the logging system.
+ */
+#pragma once
+#ifndef INCLUDED_AI_LOGGER_H
+#define INCLUDED_AI_LOGGER_H
+
+#include <assimp/types.h>
+#include <assimp/TinyFormatter.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
+ * behavior 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
+ DEBUGGING, ///< Debug messages will be logged, but not verbose debug messages.
+ VERBOSE ///< All messages will be logged
+ };
+
+ // ----------------------------------------------------------------------
+ /** @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
+ };
+
+ /** @brief Virtual destructor */
+ virtual ~Logger();
+
+ // ----------------------------------------------------------------------
+ /** @brief Writes a debug message
+ * @param message Debug message*/
+ void debug(const char* message);
+
+ template<typename... T>
+ void debug(T&&... args) {
+ debug(formatMessage(std::forward<T>(args)...).c_str());
+ }
+
+ // ----------------------------------------------------------------------
+ /** @brief Writes a debug message
+ * @param message Debug message*/
+ void verboseDebug(const char* message);
+
+ template<typename... T>
+ void verboseDebug(T&&... args) {
+ verboseDebug(formatMessage(std::forward<T>(args)...).c_str());
+ }
+
+ // ----------------------------------------------------------------------
+ /** @brief Writes a info message
+ * @param message Info message*/
+ void info(const char* message);
+
+ template<typename... T>
+ void info(T&&... args) {
+ info(formatMessage(std::forward<T>(args)...).c_str());
+ }
+
+ // ----------------------------------------------------------------------
+ /** @brief Writes a warning message
+ * @param message Warn message*/
+ void warn(const char* message);
+
+ template<typename... T>
+ void warn(T&&... args) {
+ warn(formatMessage(std::forward<T>(args)...).c_str());
+ }
+
+ // ----------------------------------------------------------------------
+ /** @brief Writes an error message
+ * @param message Error message*/
+ void error(const char* message);
+
+ template<typename... T>
+ void error(T&&... args) {
+ error(formatMessage(std::forward<T>(args)...).c_str());
+ }
+
+ // ----------------------------------------------------------------------
+ /** @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 detachStream(LogStream *pStream,
+ unsigned int severity = Debugging | Err | Warn | Info) = 0;
+
+protected:
+ /**
+ * Default constructor
+ */
+ Logger() AI_NO_EXCEPT;
+
+ /**
+ * 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 verbose 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 OnVerboseDebug(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:
+ std::string formatMessage(Assimp::Formatter::format f) {
+ return f;
+ }
+
+ template<typename... T, typename U>
+ std::string formatMessage(Assimp::Formatter::format f, U&& u, T&&... args) {
+ return formatMessage(std::move(f << std::forward<U>(u)), std::forward<T>(args)...);
+ }
+
+protected:
+ LogSeverity m_Severity;
+};
+
+// ----------------------------------------------------------------------------------
+inline Logger::Logger() AI_NO_EXCEPT :
+ m_Severity(NORMAL) {
+ // empty
+}
+
+// ----------------------------------------------------------------------------------
+inline Logger::~Logger() {
+ // empty
+}
+
+// ----------------------------------------------------------------------------------
+inline Logger::Logger(LogSeverity severity) :
+ m_Severity(severity) {
+ // empty
+}
+
+// ----------------------------------------------------------------------------------
+inline void Logger::setLogSeverity(LogSeverity log_severity){
+ m_Severity = log_severity;
+}
+
+// ----------------------------------------------------------------------------------
+// Log severity getter
+inline Logger::LogSeverity Logger::getLogSeverity() const {
+ return m_Severity;
+}
+
+} // Namespace Assimp
+
+// ------------------------------------------------------------------------------------------------
+#define ASSIMP_LOG_WARN(...) \
+ Assimp::DefaultLogger::get()->warn(__VA_ARGS__)
+
+#define ASSIMP_LOG_ERROR(...) \
+ Assimp::DefaultLogger::get()->error(__VA_ARGS__)
+
+#define ASSIMP_LOG_DEBUG(...) \
+ Assimp::DefaultLogger::get()->debug(__VA_ARGS__)
+
+#define ASSIMP_LOG_VERBOSE_DEBUG(...) \
+ Assimp::DefaultLogger::get()->verboseDebug(__VA_ARGS__)
+
+#define ASSIMP_LOG_INFO(...) \
+ Assimp::DefaultLogger::get()->info(__VA_ARGS__)
+
+#endif // !! INCLUDED_AI_LOGGER_H
diff --git a/src/mesh/assimp-master/include/assimp/MathFunctions.h b/src/mesh/assimp-master/include/assimp/MathFunctions.h
new file mode 100644
index 0000000..f2a7ccd
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/MathFunctions.h
@@ -0,0 +1,105 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#pragma once
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+/** @file MathFunctions.h
+* @brief Implementation of math utility functions.
+ *
+*/
+
+#include <limits>
+
+namespace Assimp {
+namespace Math {
+
+/// @brief Will return the greatest common divisor.
+/// @param a [in] Value a.
+/// @param b [in] Value b.
+/// @return The greatest common divisor.
+template <typename IntegerType>
+inline IntegerType gcd( IntegerType a, IntegerType b ) {
+ const IntegerType zero = (IntegerType)0;
+ while ( true ) {
+ if ( a == zero ) {
+ return b;
+ }
+ b %= a;
+
+ if ( b == zero ) {
+ return a;
+ }
+ a %= b;
+ }
+}
+
+/// @brief Will return the greatest common divisor.
+/// @param a [in] Value a.
+/// @param b [in] Value b.
+/// @return The greatest common divisor.
+template < typename IntegerType >
+inline IntegerType lcm( IntegerType a, IntegerType b ) {
+ const IntegerType t = gcd (a,b);
+ if (!t) {
+ return t;
+ }
+ return a / t * b;
+}
+/// @brief Will return the smallest epsilon-value for the requested type.
+/// @return The numercical limit epsilon depending on its type.
+template<class T>
+inline T getEpsilon() {
+ return std::numeric_limits<T>::epsilon();
+}
+
+/// @brief Will return the constant PI for the requested type.
+/// @return Pi
+template<class T>
+inline T aiPi() {
+ return static_cast<T>(3.14159265358979323846);
+}
+
+} // namespace Math
+} // namespace Assimp
diff --git a/src/mesh/assimp-master/include/assimp/MemoryIOWrapper.h b/src/mesh/assimp-master/include/assimp/MemoryIOWrapper.h
new file mode 100644
index 0000000..b4c3776
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/MemoryIOWrapper.h
@@ -0,0 +1,250 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file MemoryIOWrapper.h
+ * Handy IOStream/IOSystem implementation to read directly from a memory buffer */
+#pragma once
+#ifndef AI_MEMORYIOSTREAM_H_INC
+#define AI_MEMORYIOSTREAM_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/IOStream.hpp>
+#include <assimp/IOSystem.hpp>
+#include <assimp/ai_assert.h>
+
+#include <stdint.h>
+
+namespace Assimp {
+
+#define AI_MEMORYIO_MAGIC_FILENAME "$$$___magic___$$$"
+#define AI_MEMORYIO_MAGIC_FILENAME_LENGTH 17
+
+// ----------------------------------------------------------------------------------
+/** Implementation of IOStream to read directly from a memory buffer */
+// ----------------------------------------------------------------------------------
+class MemoryIOStream : public IOStream {
+public:
+ MemoryIOStream (const uint8_t* buff, size_t len, bool own = false)
+ : buffer (buff)
+ , length(len)
+ , pos((size_t)0)
+ , own(own) {
+ // empty
+ }
+
+ ~MemoryIOStream () {
+ if(own) {
+ delete[] buffer;
+ }
+ }
+
+ // -------------------------------------------------------------------
+ // Read from stream
+ size_t Read(void* pvBuffer, size_t pSize, size_t pCount) {
+ ai_assert(nullptr != pvBuffer);
+ ai_assert(0 != pSize);
+
+ const size_t cnt = std::min( pCount, (length-pos) / pSize);
+ const size_t ofs = pSize * cnt;
+
+ ::memcpy(pvBuffer,buffer+pos,ofs);
+ pos += ofs;
+
+ return cnt;
+ }
+
+ // -------------------------------------------------------------------
+ // Write to stream
+ size_t Write(const void* /*pvBuffer*/, size_t /*pSize*/,size_t /*pCount*/) {
+ ai_assert(false); // won't be needed
+ return 0;
+ }
+
+ // -------------------------------------------------------------------
+ // Seek specific position
+ aiReturn Seek(size_t pOffset, aiOrigin pOrigin) {
+ if (aiOrigin_SET == pOrigin) {
+ if (pOffset > length) {
+ return AI_FAILURE;
+ }
+ pos = pOffset;
+ } else if (aiOrigin_END == pOrigin) {
+ if (pOffset > length) {
+ return AI_FAILURE;
+ }
+ pos = length-pOffset;
+ } else {
+ if (pOffset+pos > length) {
+ return AI_FAILURE;
+ }
+ pos += pOffset;
+ }
+ return AI_SUCCESS;
+ }
+
+ // -------------------------------------------------------------------
+ // Get current seek position
+ size_t Tell() const {
+ return pos;
+ }
+
+ // -------------------------------------------------------------------
+ // Get size of file
+ size_t FileSize() const {
+ return length;
+ }
+
+ // -------------------------------------------------------------------
+ // Flush file contents
+ void Flush() {
+ ai_assert(false); // won't be needed
+ }
+
+private:
+ const uint8_t* buffer;
+ size_t length,pos;
+ bool own;
+};
+
+// ---------------------------------------------------------------------------
+/** Dummy IO system to read from a memory buffer */
+class MemoryIOSystem : public IOSystem {
+public:
+ /** Constructor. */
+ MemoryIOSystem(const uint8_t* buff, size_t len, IOSystem* io)
+ : buffer(buff)
+ , length(len)
+ , existing_io(io)
+ , created_streams() {
+ // empty
+ }
+
+ /** Destructor. */
+ ~MemoryIOSystem() {
+ }
+
+ // -------------------------------------------------------------------
+ /** Tests for the existence of a file at the given path. */
+ bool Exists(const char* pFile) const override {
+ if (0 == strncmp( pFile, AI_MEMORYIO_MAGIC_FILENAME, AI_MEMORYIO_MAGIC_FILENAME_LENGTH ) ) {
+ return true;
+ }
+ return existing_io ? existing_io->Exists(pFile) : false;
+ }
+
+ // -------------------------------------------------------------------
+ /** Returns the directory separator. */
+ char getOsSeparator() const override {
+ return existing_io ? existing_io->getOsSeparator()
+ : '/'; // why not? it doesn't care
+ }
+
+ // -------------------------------------------------------------------
+ /** Open a new file with a given path. */
+ IOStream* Open(const char* pFile, const char* pMode = "rb") override {
+ if ( 0 == strncmp( pFile, AI_MEMORYIO_MAGIC_FILENAME, AI_MEMORYIO_MAGIC_FILENAME_LENGTH ) ) {
+ created_streams.emplace_back(new MemoryIOStream(buffer, length));
+ return created_streams.back();
+ }
+ return existing_io ? existing_io->Open(pFile, pMode) : NULL;
+ }
+
+ // -------------------------------------------------------------------
+ /** Closes the given file and releases all resources associated with it. */
+ void Close( IOStream* pFile) override {
+ auto it = std::find(created_streams.begin(), created_streams.end(), pFile);
+ if (it != created_streams.end()) {
+ delete pFile;
+ created_streams.erase(it);
+ } else if (existing_io) {
+ existing_io->Close(pFile);
+ }
+ }
+
+ // -------------------------------------------------------------------
+ /** Compare two paths */
+ bool ComparePaths(const char* one, const char* second) const override {
+ return existing_io ? existing_io->ComparePaths(one, second) : false;
+ }
+
+ bool PushDirectory( const std::string &path ) override {
+ return existing_io ? existing_io->PushDirectory(path) : false;
+ }
+
+ const std::string &CurrentDirectory() const override {
+ static std::string empty;
+ return existing_io ? existing_io->CurrentDirectory() : empty;
+ }
+
+ size_t StackSize() const override {
+ return existing_io ? existing_io->StackSize() : 0;
+ }
+
+ bool PopDirectory() override {
+ return existing_io ? existing_io->PopDirectory() : false;
+ }
+
+ bool CreateDirectory( const std::string &path ) override {
+ return existing_io ? existing_io->CreateDirectory(path) : false;
+ }
+
+ bool ChangeDirectory( const std::string &path ) override {
+ return existing_io ? existing_io->ChangeDirectory(path) : false;
+ }
+
+ bool DeleteFile( const std::string &file ) override {
+ return existing_io ? existing_io->DeleteFile(file) : false;
+ }
+
+private:
+ const uint8_t* buffer;
+ size_t length;
+ IOSystem* existing_io;
+ std::vector<IOStream*> created_streams;
+};
+
+} // end namespace Assimp
+
+#endif
diff --git a/src/mesh/assimp-master/include/assimp/NullLogger.hpp b/src/mesh/assimp-master/include/assimp/NullLogger.hpp
new file mode 100644
index 0000000..1b594ea
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/NullLogger.hpp
@@ -0,0 +1,109 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file NullLogger.hpp
+ * @brief Dummy logger
+*/
+
+#pragma once
+#ifndef INCLUDED_AI_NULLLOGGER_H
+#define INCLUDED_AI_NULLLOGGER_H
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#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 a verbose debug message */
+ void OnVerboseDebug(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 detachStream(LogStream *pStream, unsigned int severity) {
+ (void)pStream; (void)severity; //this avoids compiler warnings
+ return false;
+ }
+
+private:
+};
+}
+#endif // !! AI_NULLLOGGER_H_INCLUDED
diff --git a/src/mesh/assimp-master/include/assimp/ObjMaterial.h b/src/mesh/assimp-master/include/assimp/ObjMaterial.h
new file mode 100644
index 0000000..bba2076
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/ObjMaterial.h
@@ -0,0 +1,84 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file OBJMATERIAL.h
+ * @brief Obj-specific material macros
+ *
+ */
+
+#ifndef AI_OBJMATERIAL_H_INC
+#define AI_OBJMATERIAL_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/material.h>
+
+// ---------------------------------------------------------------------------
+
+// the original illum property
+#define AI_MATKEY_OBJ_ILLUM "$mat.illum", 0, 0
+
+// ---------------------------------------------------------------------------
+
+// ---------------------------------------------------------------------------
+// Pure key names for all obj texture-related properties
+//! @cond MATS_DOC_FULL
+
+// support for bump -bm
+#define _AI_MATKEY_OBJ_BUMPMULT_BASE "$tex.bumpmult"
+//! @endcond
+
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_OBJ_BUMPMULT(type, N) _AI_MATKEY_OBJ_BUMPMULT_BASE, type, N
+
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_OBJ_BUMPMULT_NORMALS(N) \
+ AI_MATKEY_OBJ_BUMPMULT(aiTextureType_NORMALS, N)
+
+#define AI_MATKEY_OBJ_BUMPMULT_HEIGHT(N) \
+ AI_MATKEY_OBJ_BUMPMULT(aiTextureType_HEIGHT, N)
+
+//! @endcond
+
+
+#endif
diff --git a/src/mesh/assimp-master/include/assimp/ParsingUtils.h b/src/mesh/assimp-master/include/assimp/ParsingUtils.h
new file mode 100644
index 0000000..b08f232
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/ParsingUtils.h
@@ -0,0 +1,272 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file ParsingUtils.h
+ * @brief Defines helper functions for text parsing
+ */
+#pragma once
+#ifndef AI_PARSING_UTILS_H_INC
+#define AI_PARSING_UTILS_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/StringComparison.h>
+#include <assimp/StringUtils.h>
+#include <assimp/defs.h>
+
+#include <vector>
+#include <algorithm>
+
+namespace Assimp {
+
+// NOTE: the functions below are mostly intended as replacement for
+// std::upper, std::lower, std::isupper, std::islower, std::isspace.
+// we don't bother of locales. We don't want them. We want reliable
+// (i.e. identical) results across all locales.
+
+// The functions below accept any character type, but know only
+// about ASCII. However, UTF-32 is the only safe ASCII superset to
+// use since it doesn't have multi-byte sequences.
+
+static const unsigned int BufferSize = 4096;
+
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool IsUpper(char_t in) {
+ return (in >= (char_t)'A' && in <= (char_t)'Z');
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool IsLower(char_t in) {
+ return (in >= (char_t)'a' && in <= (char_t)'z');
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool IsSpace(char_t in) {
+ return (in == (char_t)' ' || in == (char_t)'\t');
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool IsLineEnd(char_t in) {
+ return (in == (char_t)'\r' || in == (char_t)'\n' || in == (char_t)'\0' || in == (char_t)'\f');
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool IsSpaceOrNewLine(char_t in) {
+ return IsSpace<char_t>(in) || IsLineEnd<char_t>(in);
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool SkipSpaces(const char_t *in, const char_t **out) {
+ while (*in == (char_t)' ' || *in == (char_t)'\t') {
+ ++in;
+ }
+ *out = in;
+ return !IsLineEnd<char_t>(*in);
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool SkipSpaces(const char_t **inout) {
+ return SkipSpaces<char_t>(*inout, inout);
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool SkipLine(const char_t *in, const char_t **out) {
+ while (*in != (char_t)'\r' && *in != (char_t)'\n' && *in != (char_t)'\0') {
+ ++in;
+ }
+
+ // files are opened in binary mode. Ergo there are both NL and CR
+ while (*in == (char_t)'\r' || *in == (char_t)'\n') {
+ ++in;
+ }
+ *out = in;
+ return *in != (char_t)'\0';
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool SkipLine(const char_t **inout) {
+ return SkipLine<char_t>(*inout, inout);
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool SkipSpacesAndLineEnd(const char_t *in, const char_t **out) {
+ while (*in == (char_t)' ' || *in == (char_t)'\t' || *in == (char_t)'\r' || *in == (char_t)'\n') {
+ ++in;
+ }
+ *out = in;
+ return *in != '\0';
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool SkipSpacesAndLineEnd(const char_t **inout) {
+ return SkipSpacesAndLineEnd<char_t>(*inout, inout);
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool GetNextLine(const char_t *&buffer, char_t out[BufferSize]) {
+ if ((char_t)'\0' == *buffer) {
+ return false;
+ }
+
+ char *_out = out;
+ char *const end = _out + BufferSize;
+ while (!IsLineEnd(*buffer) && _out < end) {
+ *_out++ = *buffer++;
+ }
+ *_out = (char_t)'\0';
+
+ while (IsLineEnd(*buffer) && '\0' != *buffer) {
+ ++buffer;
+ }
+
+ return true;
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool IsNumeric(char_t in) {
+ return (in >= '0' && in <= '9') || '-' == in || '+' == in;
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE bool TokenMatch(char_t *&in, const char *token, unsigned int len) {
+ if (!::strncmp(token, in, len) && IsSpaceOrNewLine(in[len])) {
+ if (in[len] != '\0') {
+ in += len + 1;
+ } else {
+ // If EOF after the token make sure we don't go past end of buffer
+ in += len;
+ }
+ return true;
+ }
+
+ return false;
+}
+// ---------------------------------------------------------------------------------
+/** @brief Case-ignoring version of TokenMatch
+ * @param in Input
+ * @param token Token to check for
+ * @param len Number of characters to check
+ */
+AI_FORCE_INLINE bool TokenMatchI(const char *&in, const char *token, unsigned int len) {
+ if (!ASSIMP_strincmp(token, in, len) && IsSpaceOrNewLine(in[len])) {
+ in += len + 1;
+ return true;
+ }
+ return false;
+}
+
+// ---------------------------------------------------------------------------------
+AI_FORCE_INLINE void SkipToken(const char *&in) {
+ SkipSpaces(&in);
+ while (!IsSpaceOrNewLine(*in)) {
+ ++in;
+ }
+}
+
+// ---------------------------------------------------------------------------------
+AI_FORCE_INLINE std::string GetNextToken(const char *&in) {
+ SkipSpacesAndLineEnd(&in);
+ const char *cur = in;
+ while (!IsSpaceOrNewLine(*in)) {
+ ++in;
+ }
+ return std::string(cur, (size_t)(in - cur));
+}
+
+// ---------------------------------------------------------------------------------
+/** @brief Will perform a simple tokenize.
+ * @param str String to tokenize.
+ * @param tokens Array with tokens, will be empty if no token was found.
+ * @param delimiters Delimiter for tokenize.
+ * @return Number of found token.
+ */
+template <class string_type>
+AI_FORCE_INLINE unsigned int tokenize(const string_type &str, std::vector<string_type> &tokens,
+ const string_type &delimiters) {
+ // Skip delimiters at beginning.
+ typename string_type::size_type lastPos = str.find_first_not_of(delimiters, 0);
+
+ // Find first "non-delimiter".
+ typename string_type::size_type pos = str.find_first_of(delimiters, lastPos);
+ while (string_type::npos != pos || string_type::npos != lastPos) {
+ // Found a token, add it to the vector.
+ string_type tmp = str.substr(lastPos, pos - lastPos);
+ if (!tmp.empty() && ' ' != tmp[0])
+ tokens.push_back(tmp);
+
+ // Skip delimiters. Note the "not_of"
+ lastPos = str.find_first_not_of(delimiters, pos);
+
+ // Find next "non-delimiter"
+ pos = str.find_first_of(delimiters, lastPos);
+ }
+
+ return static_cast<unsigned int>(tokens.size());
+}
+
+inline std::string ai_stdStrToLower(const std::string &str) {
+ std::string out(str);
+ for (size_t i = 0; i < str.size(); ++i) {
+ out[i] = (char) tolower((unsigned char)out[i]);
+ }
+ return out;
+}
+
+} // namespace Assimp
+
+#endif // ! AI_PARSING_UTILS_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/Profiler.h b/src/mesh/assimp-master/include/assimp/Profiler.h
new file mode 100644
index 0000000..fe0ffbb
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Profiler.h
@@ -0,0 +1,103 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Profiler.h
+ * @brief Utility to measure the respective runtime of each import step
+ */
+#pragma once
+#ifndef AI_INCLUDED_PROFILER_H
+#define AI_INCLUDED_PROFILER_H
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <chrono>
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/TinyFormatter.h>
+
+#include <map>
+
+namespace Assimp {
+namespace Profiling {
+
+using namespace Formatter;
+
+// ------------------------------------------------------------------------------------------------
+/** Simple wrapper around boost::timer to simplify reporting. Timings are automatically
+ * dumped to the log file.
+ */
+class Profiler {
+public:
+ Profiler() {
+ // empty
+ }
+
+
+ /** Start a named timer */
+ void BeginRegion(const std::string& region) {
+ regions[region] = std::chrono::system_clock::now();
+ ASSIMP_LOG_DEBUG("START `",region,"`");
+ }
+
+
+ /** End a specific named timer and write its end time to the log */
+ void EndRegion(const std::string& region) {
+ RegionMap::const_iterator it = regions.find(region);
+ if (it == regions.end()) {
+ return;
+ }
+
+ std::chrono::duration<double> elapsedSeconds = std::chrono::system_clock::now() - regions[region];
+ ASSIMP_LOG_DEBUG("END `",region,"`, dt= ", elapsedSeconds.count()," s");
+ }
+
+private:
+ typedef std::map<std::string,std::chrono::time_point<std::chrono::system_clock>> RegionMap;
+ RegionMap regions;
+};
+
+}
+}
+
+#endif // AI_INCLUDED_PROFILER_H
+
diff --git a/src/mesh/assimp-master/include/assimp/ProgressHandler.hpp b/src/mesh/assimp-master/include/assimp/ProgressHandler.hpp
new file mode 100644
index 0000000..1a272bb
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/ProgressHandler.hpp
@@ -0,0 +1,150 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file ProgressHandler.hpp
+ * @brief Abstract base class 'ProgressHandler'.
+ */
+#pragma once
+#ifndef AI_PROGRESSHANDLER_H_INC
+#define AI_PROGRESSHANDLER_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/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 () AI_NO_EXCEPT {
+ // empty
+ }
+
+public:
+ /// @brief Virtual destructor.
+ virtual ~ProgressHandler () {
+ // empty
+ }
+
+ // -------------------------------------------------------------------
+ /** @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 nullptr.
+ * */
+ 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 );
+ }
+
+
+ // -------------------------------------------------------------------
+ /** @brief Progress callback for export steps.
+ * @param numberOfSteps The number of total 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 UpdateFileWrite(int currentStep /*= 0*/, int numberOfSteps /*= 0*/) {
+ float f = numberOfSteps ? currentStep / (float)numberOfSteps : 1.0f;
+ Update(f * 0.5f);
+ }
+}; // !class ProgressHandler
+
+// ------------------------------------------------------------------------------------
+
+} // Namespace Assimp
+
+#endif // AI_PROGRESSHANDLER_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/RemoveComments.h b/src/mesh/assimp-master/include/assimp/RemoveComments.h
new file mode 100644
index 0000000..c2defff
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/RemoveComments.h
@@ -0,0 +1,93 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Declares a helper class, "CommentRemover", which can be
+ * used to remove comments (single and multi line) from a text file.
+ */
+#pragma once
+#ifndef AI_REMOVE_COMMENTS_H_INC
+#define AI_REMOVE_COMMENTS_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/defs.h>
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** \brief Helper class to remove single and multi line comments from a file
+ *
+ * Some mesh formats like MD5 have comments that are quite similar
+ * to those in C or C++ so this code has been moved to a separate
+ * module.
+ */
+class ASSIMP_API CommentRemover {
+ // class cannot be instanced
+ CommentRemover() {}
+
+public:
+
+ //! Remove single-line comments. The end of a line is
+ //! expected to be either NL or CR or NLCR.
+ //! \param szComment The start sequence of the comment, e.g. "//"
+ //! \param szBuffer Buffer to work with
+ //! \param chReplacement Character to be used as replacement
+ //! for commented lines. By default this is ' '
+ static void RemoveLineComments(const char* szComment,
+ char* szBuffer, char chReplacement = ' ');
+
+ //! Remove multi-line comments. The end of a line is
+ //! expected to be either NL or CR or NLCR. Multi-line comments
+ //! may not be nested (as in C).
+ //! \param szCommentStart The start sequence of the comment, e.g. "/*"
+ //! \param szCommentEnd The end sequence of the comment, e.g. "*/"
+ //! \param szBuffer Buffer to work with
+ //! \param chReplacement Character to be used as replacement
+ //! for commented lines. By default this is ' '
+ static void RemoveMultiLineComments(const char* szCommentStart,
+ const char* szCommentEnd,char* szBuffer,
+ char chReplacement = ' ');
+};
+} // ! Assimp
+
+#endif // !! AI_REMOVE_COMMENTS_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/SGSpatialSort.h b/src/mesh/assimp-master/include/assimp/SGSpatialSort.h
new file mode 100644
index 0000000..96feefa
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/SGSpatialSort.h
@@ -0,0 +1,155 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** Small helper classes to optimize finding vertices close to a given location
+ */
+#pragma once
+#ifndef AI_D3DSSPATIALSORT_H_INC
+#define AI_D3DSSPATIALSORT_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/types.h>
+#include <vector>
+#include <stdint.h>
+
+namespace Assimp {
+
+// ----------------------------------------------------------------------------------
+/** Specialized version of SpatialSort to support smoothing groups
+ * This is used in by the 3DS, ASE and LWO loaders. 3DS and ASE share their
+ * normal computation code in SmoothingGroups.inl, the LWO loader has its own
+ * implementation to handle all details of its file format correctly.
+ */
+// ----------------------------------------------------------------------------------
+class ASSIMP_API SGSpatialSort
+{
+public:
+
+ SGSpatialSort();
+
+ // -------------------------------------------------------------------
+ /** Construction from a given face array, handling smoothing groups
+ * properly
+ */
+ explicit SGSpatialSort(const std::vector<aiVector3D>& vPositions);
+
+ // -------------------------------------------------------------------
+ /** Add a vertex to the spatial sort
+ * @param vPosition Vertex position to be added
+ * @param index Index of the vrtex
+ * @param smoothingGroup SmoothingGroup for this vertex
+ */
+ void Add(const aiVector3D& vPosition, unsigned int index,
+ unsigned int smoothingGroup);
+
+ // -------------------------------------------------------------------
+ /** Prepare the spatial sorter for use. This step runs in O(logn)
+ */
+ void Prepare();
+
+ /** Destructor */
+ ~SGSpatialSort();
+
+ // -------------------------------------------------------------------
+ /** Returns an iterator for all positions close to the given position.
+ * @param pPosition The position to look for vertices.
+ * @param pSG Only included vertices with at least one shared smooth group
+ * @param pRadius Maximal distance from the position a vertex may have
+ * to be counted in.
+ * @param poResults The container to store the indices of the found
+ * positions. Will be emptied by the call so it may contain anything.
+ * @param exactMatch Specifies whether smoothing groups are bit masks
+ * (false) or integral values (true). In the latter case, a vertex
+ * cannot belong to more than one smoothing group.
+ * @return An iterator to iterate over all vertices in the given area.
+ */
+ // -------------------------------------------------------------------
+ void FindPositions( const aiVector3D& pPosition, uint32_t pSG,
+ float pRadius, std::vector<unsigned int>& poResults,
+ bool exactMatch = false) const;
+
+protected:
+ /** Normal of the sorting plane, normalized. The center is always at (0, 0, 0) */
+ aiVector3D mPlaneNormal;
+
+ // -------------------------------------------------------------------
+ /** An entry in a spatially sorted position array. Consists of a
+ * vertex index, its position and its pre-calculated distance from
+ * the reference plane */
+ // -------------------------------------------------------------------
+ struct Entry {
+ unsigned int mIndex; ///< The vertex referred by this entry
+ aiVector3D mPosition; ///< Position
+ uint32_t mSmoothGroups;
+ float mDistance; ///< Distance of this vertex to the sorting plane
+
+ Entry() AI_NO_EXCEPT
+ : mIndex(0)
+ , mPosition()
+ , mSmoothGroups(0)
+ , mDistance(0.0f) {
+ // empty
+ }
+
+ Entry( unsigned int pIndex, const aiVector3D& pPosition, float pDistance,uint32_t pSG)
+ : mIndex( pIndex)
+ , mPosition( pPosition)
+ , mSmoothGroups(pSG)
+ , mDistance( pDistance) {
+ // empty
+ }
+
+ bool operator < (const Entry& e) const {
+ return mDistance < e.mDistance;
+ }
+ };
+
+ // all positions, sorted by distance to the sorting plane
+ std::vector<Entry> mPositions;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_SPATIALSORT_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/SceneCombiner.h b/src/mesh/assimp-master/include/assimp/SceneCombiner.h
new file mode 100644
index 0000000..6da38cd
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/SceneCombiner.h
@@ -0,0 +1,389 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Declares a helper class, "SceneCombiner" providing various
+ * utilities to merge scenes.
+ */
+#pragma once
+#ifndef AI_SCENE_COMBINER_H_INC
+#define AI_SCENE_COMBINER_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/ai_assert.h>
+#include <assimp/types.h>
+
+#include <cstddef>
+#include <cstdint>
+#include <list>
+#include <set>
+#include <vector>
+
+struct aiScene;
+struct aiNode;
+struct aiMaterial;
+struct aiTexture;
+struct aiCamera;
+struct aiLight;
+struct aiMetadata;
+struct aiBone;
+struct aiMesh;
+struct aiAnimMesh;
+struct aiAnimation;
+struct aiNodeAnim;
+struct aiMeshMorphAnim;
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** \brief Helper data structure for SceneCombiner.
+ *
+ * Describes to which node a scene must be attached to.
+ */
+struct AttachmentInfo {
+ AttachmentInfo() :
+ scene(nullptr),
+ attachToNode(nullptr) {}
+
+ AttachmentInfo(aiScene *_scene, aiNode *_attachToNode) :
+ scene(_scene), attachToNode(_attachToNode) {}
+
+ aiScene *scene;
+ aiNode *attachToNode;
+};
+
+// ---------------------------------------------------------------------------
+struct NodeAttachmentInfo {
+ NodeAttachmentInfo() :
+ node(nullptr),
+ attachToNode(nullptr),
+ 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(nullptr),
+ 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 nullptr 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 nullptr 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 nullptr (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 nullptr 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(aiAnimMesh **dest, const aiAnimMesh *src);
+ 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(aiMeshMorphAnim **dest, const aiMeshMorphAnim *src);
+ static void Copy(aiMetadata **dest, const aiMetadata *src);
+ static void Copy(aiString **dest, const aiString *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);
+};
+
+} // namespace Assimp
+
+#endif // !! AI_SCENE_COMBINER_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/SkeletonMeshBuilder.h b/src/mesh/assimp-master/include/assimp/SkeletonMeshBuilder.h
new file mode 100644
index 0000000..2929aaa
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/SkeletonMeshBuilder.h
@@ -0,0 +1,128 @@
+/** Helper class to construct a dummy mesh for file formats containing only motion data */
+
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file SkeletonMeshBuilder.h
+ * Declares SkeletonMeshBuilder, a tiny utility to build dummy meshes
+ * for animation skeletons.
+ */
+
+#pragma once
+#ifndef AI_SKELETONMESHBUILDER_H_INC
+#define AI_SKELETONMESHBUILDER_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/mesh.h>
+#include <vector>
+
+struct aiMaterial;
+struct aiScene;
+struct aiNode;
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/**
+ * This little helper class constructs a dummy mesh for a given scene
+ * the resembles the node hierarchy. This is useful for file formats
+ * that don't carry any mesh data but only animation data.
+ */
+class ASSIMP_API SkeletonMeshBuilder {
+public:
+ // -------------------------------------------------------------------
+ /** The constructor processes the given scene and adds a mesh there.
+ *
+ * Does nothing if the scene already has mesh data.
+ * @param pScene The scene for which a skeleton mesh should be constructed.
+ * @param root The node to start with. nullptr is the scene root
+ * @param bKnobsOnly Set this to true if you don't want the connectors
+ * between the knobs representing the nodes.
+ */
+ SkeletonMeshBuilder(aiScene *pScene, aiNode *root = nullptr,
+ bool bKnobsOnly = false);
+
+protected:
+ // -------------------------------------------------------------------
+ /** Recursively builds a simple mesh representation for the given node
+ * and also creates a joint for the node that affects this part of
+ * the mesh.
+ * @param pNode The node to build geometry for.
+ */
+ void CreateGeometry(const aiNode *pNode);
+
+ // -------------------------------------------------------------------
+ /** Creates the mesh from the internally accumulated stuff and returns it.
+ */
+ aiMesh *CreateMesh();
+
+ // -------------------------------------------------------------------
+ /** Creates a dummy material and returns it. */
+ aiMaterial *CreateMaterial();
+
+private:
+ /** space to assemble the mesh data: points */
+ std::vector<aiVector3D> mVertices;
+
+ /** faces */
+ struct Face {
+ unsigned int mIndices[3];
+ Face();
+ Face(unsigned int p0, unsigned int p1, unsigned int p2) {
+ mIndices[0] = p0;
+ mIndices[1] = p1;
+ mIndices[2] = p2;
+ }
+ };
+ std::vector<Face> mFaces;
+
+ /** bones */
+ std::vector<aiBone *> mBones;
+
+ bool mKnobsOnly;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_SKELETONMESHBUILDER_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/SmallVector.h b/src/mesh/assimp-master/include/assimp/SmallVector.h
new file mode 100644
index 0000000..60ad264
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/SmallVector.h
@@ -0,0 +1,164 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines small vector with inplace storage.
+Based on CppCon 2016: Chandler Carruth "High Performance Code 201: Hybrid Data Structures" */
+
+#pragma once
+#ifndef AI_SMALLVECTOR_H_INC
+#define AI_SMALLVECTOR_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+namespace Assimp {
+
+// --------------------------------------------------------------------------------------------
+/// @brief Small vector with inplace storage.
+///
+/// Reduces heap allocations when list is shorter. It uses a small array for a dedicated size.
+/// When the growing gets bigger than this small cache a dynamic growing algorithm will be
+/// used.
+// --------------------------------------------------------------------------------------------
+template<typename T, unsigned int Capacity>
+class SmallVector {
+public:
+ /// @brief The default class constructor.
+ SmallVector() :
+ mStorage(mInplaceStorage),
+ mSize(0),
+ mCapacity(Capacity) {
+ // empty
+ }
+
+ /// @brief The class destructor.
+ ~SmallVector() {
+ if (mStorage != mInplaceStorage) {
+ delete [] mStorage;
+ }
+ }
+
+ /// @brief Will push a new item. The capacity will grow in case of a too small capacity.
+ /// @param item [in] The item to push at the end of the vector.
+ void push_back(const T& item) {
+ if (mSize < mCapacity) {
+ mStorage[mSize++] = item;
+ return;
+ }
+
+ push_back_and_grow(item);
+ }
+
+ /// @brief Will resize the vector.
+ /// @param newSize [in] The new size.
+ void resize(size_t newSize) {
+ if (newSize > mCapacity) {
+ grow(newSize);
+ }
+ mSize = newSize;
+ }
+
+ /// @brief Returns the current size of the vector.
+ /// @return The current size.
+ size_t size() const {
+ return mSize;
+ }
+
+ /// @brief Returns a pointer to the first item.
+ /// @return The first item as a pointer.
+ T* begin() {
+ return mStorage;
+ }
+
+ /// @brief Returns a pointer to the end.
+ /// @return The end as a pointer.
+ T* end() {
+ return &mStorage[mSize];
+ }
+
+ /// @brief Returns a const pointer to the first item.
+ /// @return The first item as a const pointer.
+ T* begin() const {
+ return mStorage;
+ }
+
+ /// @brief Returns a const pointer to the end.
+ /// @return The end as a const pointer.
+ T* end() const {
+ return &mStorage[mSize];
+ }
+
+ SmallVector(const SmallVector &) = delete;
+ SmallVector(SmallVector &&) = delete;
+ SmallVector &operator = (const SmallVector &) = delete;
+ SmallVector &operator = (SmallVector &&) = delete;
+
+private:
+ void grow( size_t newCapacity) {
+ T* oldStorage = mStorage;
+ T* newStorage = new T[newCapacity];
+
+ std::memcpy(newStorage, oldStorage, mSize * sizeof(T));
+
+ mStorage = newStorage;
+ mCapacity = newCapacity;
+
+ if (oldStorage != mInplaceStorage) {
+ delete [] oldStorage;
+ }
+ }
+
+ void push_back_and_grow(const T& item) {
+ grow(mCapacity + Capacity);
+
+ mStorage[mSize++] = item;
+ }
+
+ T* mStorage;
+ size_t mSize;
+ size_t mCapacity;
+ T mInplaceStorage[Capacity];
+};
+
+} // end namespace Assimp
+
+#endif // !! AI_SMALLVECTOR_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/SmoothingGroups.h b/src/mesh/assimp-master/include/assimp/SmoothingGroups.h
new file mode 100644
index 0000000..4625a29
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/SmoothingGroups.h
@@ -0,0 +1,114 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines the helper data structures for importing 3DS files.
+http://www.jalix.org/ressources/graphics/3DS/_unofficials/3ds-unofficial.txt */
+
+#pragma once
+#ifndef AI_SMOOTHINGGROUPS_H_INC
+#define AI_SMOOTHINGGROUPS_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/vector3.h>
+
+#include <stdint.h>
+#include <vector>
+
+// ---------------------------------------------------------------------------
+/** Helper structure representing a face with smoothing groups assigned */
+struct FaceWithSmoothingGroup {
+ FaceWithSmoothingGroup() AI_NO_EXCEPT
+ : mIndices()
+ , iSmoothGroup(0) {
+ // in debug builds set all indices to a common magic value
+#ifdef ASSIMP_BUILD_DEBUG
+ this->mIndices[0] = 0xffffffff;
+ this->mIndices[1] = 0xffffffff;
+ this->mIndices[2] = 0xffffffff;
+#endif
+ }
+
+
+ //! Indices. .3ds is using uint16. However, after
+ //! an unique vertex set has been generated,
+ //! individual index values might exceed 2^16
+ uint32_t mIndices[3];
+
+ //! specifies to which smoothing group the face belongs to
+ uint32_t iSmoothGroup;
+};
+
+// ---------------------------------------------------------------------------
+/** Helper structure representing a mesh whose faces have smoothing
+ groups assigned. This allows us to reuse the code for normal computations
+ from smoothings groups for several loaders (3DS, ASE). All of them
+ use face structures which inherit from #FaceWithSmoothingGroup,
+ but as they add extra members and need to be copied by value we
+ need to use a template here.
+ */
+template <class T>
+struct MeshWithSmoothingGroups
+{
+ //! Vertex positions
+ std::vector<aiVector3D> mPositions;
+
+ //! Face lists
+ std::vector<T> mFaces;
+
+ //! List of normal vectors
+ std::vector<aiVector3D> mNormals;
+};
+
+// ---------------------------------------------------------------------------
+/** Computes normal vectors for the mesh
+ */
+template <class T>
+void ComputeNormalsWithSmoothingsGroups(MeshWithSmoothingGroups<T>& sMesh);
+
+
+// include implementations
+#include "SmoothingGroups.inl"
+
+#endif // !! AI_SMOOTHINGGROUPS_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/SmoothingGroups.inl b/src/mesh/assimp-master/include/assimp/SmoothingGroups.inl
new file mode 100644
index 0000000..d5fff5b
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/SmoothingGroups.inl
@@ -0,0 +1,141 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Generation of normal vectors basing on smoothing groups */
+
+#pragma once
+#ifndef AI_SMOOTHINGGROUPS_INL_INCLUDED
+#define AI_SMOOTHINGGROUPS_INL_INCLUDED
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/SGSpatialSort.h>
+
+#include <algorithm>
+
+using namespace Assimp;
+
+// ------------------------------------------------------------------------------------------------
+template <class T>
+void ComputeNormalsWithSmoothingsGroups(MeshWithSmoothingGroups<T>& sMesh)
+{
+ // First generate face normals
+ sMesh.mNormals.resize(sMesh.mPositions.size(),aiVector3D());
+ for( unsigned int a = 0; a < sMesh.mFaces.size(); a++)
+ {
+ T& face = sMesh.mFaces[a];
+
+ aiVector3D* pV1 = &sMesh.mPositions[face.mIndices[0]];
+ aiVector3D* pV2 = &sMesh.mPositions[face.mIndices[1]];
+ aiVector3D* pV3 = &sMesh.mPositions[face.mIndices[2]];
+
+ aiVector3D pDelta1 = *pV2 - *pV1;
+ aiVector3D pDelta2 = *pV3 - *pV1;
+ aiVector3D vNor = pDelta1 ^ pDelta2;
+
+ for (unsigned int c = 0; c < 3;++c)
+ sMesh.mNormals[face.mIndices[c]] = vNor;
+ }
+
+ // calculate the position bounds so we have a reliable epsilon to check position differences against
+ aiVector3D minVec( 1e10f, 1e10f, 1e10f), maxVec( -1e10f, -1e10f, -1e10f);
+ for( unsigned int a = 0; a < sMesh.mPositions.size(); a++)
+ {
+ minVec.x = std::min( minVec.x, sMesh.mPositions[a].x);
+ minVec.y = std::min( minVec.y, sMesh.mPositions[a].y);
+ minVec.z = std::min( minVec.z, sMesh.mPositions[a].z);
+ maxVec.x = std::max( maxVec.x, sMesh.mPositions[a].x);
+ maxVec.y = std::max( maxVec.y, sMesh.mPositions[a].y);
+ maxVec.z = std::max( maxVec.z, sMesh.mPositions[a].z);
+ }
+ const float posEpsilon = (maxVec - minVec).Length() * 1e-5f;
+ std::vector<aiVector3D> avNormals;
+ avNormals.resize(sMesh.mNormals.size());
+
+ // now generate the spatial sort tree
+ SGSpatialSort sSort;
+ for( typename std::vector<T>::iterator i = sMesh.mFaces.begin();
+ i != sMesh.mFaces.end();++i)
+ {
+ for (unsigned int c = 0; c < 3;++c)
+ sSort.Add(sMesh.mPositions[(*i).mIndices[c]],(*i).mIndices[c],(*i).iSmoothGroup);
+ }
+ sSort.Prepare();
+
+ std::vector<bool> vertexDone(sMesh.mPositions.size(),false);
+ for( typename std::vector<T>::iterator i = sMesh.mFaces.begin();
+ i != sMesh.mFaces.end();++i)
+ {
+ std::vector<unsigned int> poResult;
+ for (unsigned int c = 0; c < 3;++c)
+ {
+ unsigned int idx = (*i).mIndices[c];
+ if (vertexDone[idx])continue;
+
+ sSort.FindPositions(sMesh.mPositions[idx],(*i).iSmoothGroup,
+ posEpsilon,poResult);
+
+ aiVector3D vNormals;
+ for (std::vector<unsigned int>::const_iterator
+ a = poResult.begin();
+ a != poResult.end();++a)
+ {
+ vNormals += sMesh.mNormals[(*a)];
+ }
+ vNormals.NormalizeSafe();
+
+ // write back into all affected normals
+ for (std::vector<unsigned int>::const_iterator
+ a = poResult.begin();
+ a != poResult.end();++a)
+ {
+ idx = *a;
+ avNormals [idx] = vNormals;
+ vertexDone[idx] = true;
+ }
+ }
+ }
+ sMesh.mNormals = avNormals;
+}
+
+#endif // !! AI_SMOOTHINGGROUPS_INL_INCLUDED
diff --git a/src/mesh/assimp-master/include/assimp/SpatialSort.h b/src/mesh/assimp-master/include/assimp/SpatialSort.h
new file mode 100644
index 0000000..87b009d
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/SpatialSort.h
@@ -0,0 +1,190 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** Small helper classes to optimise finding vertizes close to a given location */
+#pragma once
+#ifndef AI_SPATIALSORT_H_INC
+#define AI_SPATIALSORT_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/types.h>
+#include <vector>
+#include <limits>
+
+namespace Assimp {
+
+// ------------------------------------------------------------------------------------------------
+/** A little helper class to quickly find all vertices in the epsilon environment of a given
+ * position. Construct an instance with an array of positions. The class stores the given positions
+ * by their indices and sorts them by their distance to an arbitrary chosen plane.
+ * You can then query the instance for all vertices close to a given position in an average O(log n)
+ * time, with O(n) worst case complexity when all vertices lay on the plane. The plane is chosen
+ * so that it avoids common planes in usual data sets. */
+// ------------------------------------------------------------------------------------------------
+class ASSIMP_API SpatialSort {
+public:
+ SpatialSort();
+
+ // ------------------------------------------------------------------------------------
+ /** Constructs a spatially sorted representation from the given position array.
+ * Supply the positions in its layout in memory, the class will only refer to them
+ * by index.
+ * @param pPositions Pointer to the first position vector of the array.
+ * @param pNumPositions Number of vectors to expect in that array.
+ * @param pElementOffset Offset in bytes from the beginning of one vector in memory
+ * to the beginning of the next vector. */
+ SpatialSort(const aiVector3D *pPositions, unsigned int pNumPositions,
+ unsigned int pElementOffset);
+
+ /** Destructor */
+ ~SpatialSort();
+
+ // ------------------------------------------------------------------------------------
+ /** Sets the input data for the SpatialSort. This replaces existing data, if any.
+ * The new data receives new indices in ascending order.
+ *
+ * @param pPositions Pointer to the first position vector of the array.
+ * @param pNumPositions Number of vectors to expect in that array.
+ * @param pElementOffset Offset in bytes from the beginning of one vector in memory
+ * to the beginning of the next vector.
+ * @param pFinalize Specifies whether the SpatialSort's internal representation
+ * is finalized after the new data has been added. Finalization is
+ * required in order to use #FindPosition() or #GenerateMappingTable().
+ * If you don't finalize yet, you can use #Append() to add data from
+ * other sources.*/
+ void Fill(const aiVector3D *pPositions, unsigned int pNumPositions,
+ unsigned int pElementOffset,
+ bool pFinalize = true);
+
+ // ------------------------------------------------------------------------------------
+ /** Same as #Fill(), except the method appends to existing data in the #SpatialSort. */
+ void Append(const aiVector3D *pPositions, unsigned int pNumPositions,
+ unsigned int pElementOffset,
+ bool pFinalize = true);
+
+ // ------------------------------------------------------------------------------------
+ /** Finalize the spatial hash data structure. This can be useful after
+ * multiple calls to #Append() with the pFinalize parameter set to false.
+ * This is finally required before one of #FindPositions() and #GenerateMappingTable()
+ * can be called to query the spatial sort.*/
+ void Finalize();
+
+ // ------------------------------------------------------------------------------------
+ /** Returns an iterator for all positions close to the given position.
+ * @param pPosition The position to look for vertices.
+ * @param pRadius Maximal distance from the position a vertex may have to be counted in.
+ * @param poResults The container to store the indices of the found positions.
+ * Will be emptied by the call so it may contain anything.
+ * @return An iterator to iterate over all vertices in the given area.*/
+ void FindPositions(const aiVector3D &pPosition, ai_real pRadius,
+ std::vector<unsigned int> &poResults) const;
+
+ // ------------------------------------------------------------------------------------
+ /** Fills an array with indices of all positions identical to the given position. In
+ * opposite to FindPositions(), not an epsilon is used but a (very low) tolerance of
+ * four floating-point units.
+ * @param pPosition The position to look for vertices.
+ * @param poResults The container to store the indices of the found positions.
+ * Will be emptied by the call so it may contain anything.*/
+ void FindIdenticalPositions(const aiVector3D &pPosition,
+ std::vector<unsigned int> &poResults) const;
+
+ // ------------------------------------------------------------------------------------
+ /** Compute a table that maps each vertex ID referring to a spatially close
+ * enough position to the same output ID. Output IDs are assigned in ascending order
+ * from 0...n.
+ * @param fill Will be filled with numPositions entries.
+ * @param pRadius Maximal distance from the position a vertex may have to
+ * be counted in.
+ * @return Number of unique vertices (n). */
+ unsigned int GenerateMappingTable(std::vector<unsigned int> &fill,
+ ai_real pRadius) const;
+
+protected:
+ /** Return the distance to the sorting plane. */
+ ai_real CalculateDistance(const aiVector3D &pPosition) const;
+
+protected:
+ /** Normal of the sorting plane, normalized.
+ */
+ aiVector3D mPlaneNormal;
+
+ /** The centroid of the positions, which is used as a point on the sorting plane
+ * when calculating distance. This value is calculated in Finalize.
+ */
+ aiVector3D mCentroid;
+
+ /** An entry in a spatially sorted position array. Consists of a vertex index,
+ * its position and its pre-calculated distance from the reference plane */
+ struct Entry {
+ unsigned int mIndex; ///< The vertex referred by this entry
+ aiVector3D mPosition; ///< Position
+ /// Distance of this vertex to the sorting plane. This is set by Finalize.
+ ai_real mDistance;
+
+ Entry() AI_NO_EXCEPT
+ : mIndex(std::numeric_limits<unsigned int>::max()),
+ mPosition(),
+ mDistance(std::numeric_limits<ai_real>::max()) {
+ // empty
+ }
+ Entry(unsigned int pIndex, const aiVector3D &pPosition) :
+ mIndex(pIndex), mPosition(pPosition), mDistance(std::numeric_limits<ai_real>::max()) {
+ // empty
+ }
+
+ bool operator<(const Entry &e) const { return mDistance < e.mDistance; }
+ };
+
+ // all positions, sorted by distance to the sorting plane
+ std::vector<Entry> mPositions;
+
+ /// false until the Finalize method is called.
+ bool mFinalized;
+};
+
+} // end of namespace Assimp
+
+#endif // AI_SPATIALSORT_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/StandardShapes.h b/src/mesh/assimp-master/include/assimp/StandardShapes.h
new file mode 100644
index 0000000..77880cf
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/StandardShapes.h
@@ -0,0 +1,206 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Declares a helper class, "StandardShapes" which generates
+ * vertices for standard shapes, such as cylinders, cones, spheres ..
+ */
+#pragma once
+#ifndef AI_STANDARD_SHAPES_H_INC
+#define AI_STANDARD_SHAPES_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/vector3.h>
+#include <stddef.h>
+#include <vector>
+
+struct aiMesh;
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** \brief Helper class to generate vertex buffers for standard geometric
+ * shapes, such as cylinders, cones, boxes, spheres, elipsoids ... .
+ */
+class ASSIMP_API StandardShapes
+{
+ // class cannot be instanced
+ StandardShapes() {}
+
+public:
+
+
+ // ----------------------------------------------------------------
+ /** Generates a mesh from an array of vertex positions.
+ *
+ * @param positions List of vertex positions
+ * @param numIndices Number of indices per primitive
+ * @return Output mesh
+ */
+ static aiMesh* MakeMesh(const std::vector<aiVector3D>& positions,
+ unsigned int numIndices);
+
+
+ static aiMesh* MakeMesh ( unsigned int (*GenerateFunc)
+ (std::vector<aiVector3D>&));
+
+ static aiMesh* MakeMesh ( unsigned int (*GenerateFunc)
+ (std::vector<aiVector3D>&, bool));
+
+ static aiMesh* MakeMesh ( unsigned int n, void (*GenerateFunc)
+ (unsigned int,std::vector<aiVector3D>&));
+
+ // ----------------------------------------------------------------
+ /** @brief Generates a hexahedron (cube)
+ *
+ * Hexahedrons can be scaled on all axes.
+ * @param positions Receives output triangles.
+ * @param polygons If you pass true here quads will be returned
+ * @return Number of vertices per face
+ */
+ static unsigned int MakeHexahedron(
+ std::vector<aiVector3D>& positions,
+ bool polygons = false);
+
+ // ----------------------------------------------------------------
+ /** @brief Generates an icosahedron
+ *
+ * @param positions Receives output triangles.
+ * @return Number of vertices per face
+ */
+ static unsigned int MakeIcosahedron(
+ std::vector<aiVector3D>& positions);
+
+
+ // ----------------------------------------------------------------
+ /** @brief Generates a dodecahedron
+ *
+ * @param positions Receives output triangles
+ * @param polygons If you pass true here pentagons will be returned
+ * @return Number of vertices per face
+ */
+ static unsigned int MakeDodecahedron(
+ std::vector<aiVector3D>& positions,
+ bool polygons = false);
+
+
+ // ----------------------------------------------------------------
+ /** @brief Generates an octahedron
+ *
+ * @param positions Receives output triangles.
+ * @return Number of vertices per face
+ */
+ static unsigned int MakeOctahedron(
+ std::vector<aiVector3D>& positions);
+
+
+ // ----------------------------------------------------------------
+ /** @brief Generates a tetrahedron
+ *
+ * @param positions Receives output triangles.
+ * @return Number of vertices per face
+ */
+ static unsigned int MakeTetrahedron(
+ std::vector<aiVector3D>& positions);
+
+
+
+ // ----------------------------------------------------------------
+ /** @brief Generates a sphere
+ *
+ * @param tess Number of subdivions - 0 generates a octahedron
+ * @param positions Receives output triangles.
+ */
+ static void MakeSphere(unsigned int tess,
+ std::vector<aiVector3D>& positions);
+
+
+ // ----------------------------------------------------------------
+ /** @brief Generates a cone or a cylinder, either open or closed.
+ *
+ * @code
+ *
+ * |-----| <- radius 1
+ *
+ * __x__ <- ] ^
+ * / \ | height |
+ * / \ | Y
+ * / \ |
+ * / \ |
+ * /______x______\ <- ] <- end cap
+ *
+ * |-------------| <- radius 2
+ *
+ * @endcode
+ *
+ * @param height Height of the cone
+ * @param radius1 First radius
+ * @param radius2 Second radius
+ * @param tess Number of triangles.
+ * @param bOpened true for an open cone/cylinder. An open shape has
+ * no 'end caps'
+ * @param positions Receives output triangles
+ */
+ static void MakeCone(ai_real height,ai_real radius1,
+ ai_real radius2,unsigned int tess,
+ std::vector<aiVector3D>& positions,bool bOpen= false);
+
+
+ // ----------------------------------------------------------------
+ /** @brief Generates a flat circle
+ *
+ * The circle is constructed in the planned formed by the x,z
+ * axes of the cartesian coordinate system.
+ *
+ * @param radius Radius of the circle
+ * @param tess Number of segments.
+ * @param positions Receives output triangles.
+ */
+ static void MakeCircle(ai_real radius, unsigned int tess,
+ std::vector<aiVector3D>& positions);
+
+};
+} // ! Assimp
+
+#endif // !! AI_STANDARD_SHAPES_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/StreamReader.h b/src/mesh/assimp-master/include/assimp/StreamReader.h
new file mode 100644
index 0000000..44b24a3
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/StreamReader.h
@@ -0,0 +1,344 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Defines the StreamReader class which reads data from
+ * a binary stream with a well-defined endianness.
+ */
+#pragma once
+#ifndef AI_STREAMREADER_H_INCLUDED
+#define AI_STREAMREADER_H_INCLUDED
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/ByteSwapper.h>
+#include <assimp/Exceptional.h>
+#include <assimp/IOStream.hpp>
+
+#include <memory>
+
+namespace Assimp {
+
+// --------------------------------------------------------------------------------------------
+/** Wrapper class around IOStream to allow for consistent reading of binary data in both
+ * little and big endian format. Don't attempt to instance the template directly. Use
+ * StreamReaderLE to read from a little-endian stream and StreamReaderBE to read from a
+ * BE stream. The class expects that the endianness of any input data is known at
+ * compile-time, which should usually be true (#BaseImporter::ConvertToUTF8 implements
+ * runtime endianness conversions for text files).
+ *
+ * XXX switch from unsigned int for size types to size_t? or ptrdiff_t?*/
+// --------------------------------------------------------------------------------------------
+template <bool SwapEndianess = false, bool RuntimeSwitch = false>
+class StreamReader {
+public:
+ using diff = size_t;
+ using pos = size_t;
+
+ // ---------------------------------------------------------------------
+ /** Construction from a given stream with a well-defined endianness.
+ *
+ * The StreamReader holds a permanent strong reference to the
+ * stream, which is released upon destruction.
+ * @param stream Input stream. The stream is not restarted if
+ * its file pointer is not at 0. Instead, the stream reader
+ * reads from the current position to the end of the stream.
+ * @param le If @c RuntimeSwitch is true: specifies whether the
+ * stream is in little endian byte order. Otherwise the
+ * endianness information is contained in the @c SwapEndianess
+ * template parameter and this parameter is meaningless. */
+ StreamReader(std::shared_ptr<IOStream> stream, bool le = false) :
+ mStream(stream),
+ mBuffer(nullptr),
+ mCurrent(nullptr),
+ mEnd(nullptr),
+ mLimit(nullptr),
+ mLe(le) {
+ ai_assert(stream);
+ InternBegin();
+ }
+
+ // ---------------------------------------------------------------------
+ StreamReader(IOStream *stream, bool le = false) :
+ mStream(std::shared_ptr<IOStream>(stream)),
+ mBuffer(nullptr),
+ mCurrent(nullptr),
+ mEnd(nullptr),
+ mLimit(nullptr),
+ mLe(le) {
+ ai_assert(nullptr != stream);
+ InternBegin();
+ }
+
+ // ---------------------------------------------------------------------
+ ~StreamReader() {
+ delete[] mBuffer;
+ }
+
+ // deprecated, use overloaded operator>> instead
+
+ // ---------------------------------------------------------------------
+ /// Read a float from the stream.
+ float GetF4() {
+ return Get<float>();
+ }
+
+ // ---------------------------------------------------------------------
+ /// Read a double from the stream.
+ double GetF8() {
+ return Get<double>();
+ }
+
+ // ---------------------------------------------------------------------
+ /** Read a signed 16 bit integer from the stream */
+ int16_t GetI2() {
+ return Get<int16_t>();
+ }
+
+ // ---------------------------------------------------------------------
+ /** Read a signed 8 bit integer from the stream */
+ int8_t GetI1() {
+ return Get<int8_t>();
+ }
+
+ // ---------------------------------------------------------------------
+ /** Read an signed 32 bit integer from the stream */
+ int32_t GetI4() {
+ return Get<int32_t>();
+ }
+
+ // ---------------------------------------------------------------------
+ /** Read a signed 64 bit integer from the stream */
+ int64_t GetI8() {
+ return Get<int64_t>();
+ }
+
+ // ---------------------------------------------------------------------
+ /** Read a unsigned 16 bit integer from the stream */
+ uint16_t GetU2() {
+ return Get<uint16_t>();
+ }
+
+ // ---------------------------------------------------------------------
+ /// Read a unsigned 8 bit integer from the stream
+ uint8_t GetU1() {
+ return Get<uint8_t>();
+ }
+
+ // ---------------------------------------------------------------------
+ /// Read an unsigned 32 bit integer from the stream
+ uint32_t GetU4() {
+ return Get<uint32_t>();
+ }
+
+ // ---------------------------------------------------------------------
+ /// Read a unsigned 64 bit integer from the stream
+ uint64_t GetU8() {
+ return Get<uint64_t>();
+ }
+
+ // ---------------------------------------------------------------------
+ /// Get the remaining stream size (to the end of the stream)
+ size_t GetRemainingSize() const {
+ return (unsigned int)(mEnd - mCurrent);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Get the remaining stream size (to the current read limit). The
+ * return value is the remaining size of the stream if no custom
+ * read limit has been set. */
+ size_t GetRemainingSizeToLimit() const {
+ return (unsigned int)(mLimit - mCurrent);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Increase the file pointer (relative seeking) */
+ void IncPtr(intptr_t plus) {
+ mCurrent += plus;
+ if (mCurrent > mLimit) {
+ throw DeadlyImportError("End of file or read limit was reached");
+ }
+ }
+
+ // ---------------------------------------------------------------------
+ /** Get the current file pointer */
+ int8_t *GetPtr() const {
+ return mCurrent;
+ }
+
+ // ---------------------------------------------------------------------
+ /** Set current file pointer (Get it from #GetPtr). This is if you
+ * prefer to do pointer arithmetic on your own or want to copy
+ * large chunks of data at once.
+ * @param p The new pointer, which is validated against the size
+ * limit and buffer boundaries. */
+ void SetPtr(int8_t *p) {
+ mCurrent = p;
+ if (mCurrent > mLimit || mCurrent < mBuffer) {
+ throw DeadlyImportError("End of file or read limit was reached");
+ }
+ }
+
+ // ---------------------------------------------------------------------
+ /** Copy n bytes to an external buffer
+ * @param out Destination for copying
+ * @param bytes Number of bytes to copy */
+ void CopyAndAdvance(void *out, size_t bytes) {
+ int8_t *ur = GetPtr();
+ SetPtr(ur + bytes); // fire exception if eof
+
+ ::memcpy(out, ur, bytes);
+ }
+
+ /// @brief Get the current offset from the beginning of the file
+ int GetCurrentPos() const {
+ return (unsigned int)(mCurrent - mBuffer);
+ }
+
+ void SetCurrentPos(size_t pos) {
+ SetPtr(mBuffer + pos);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Setup a temporary read limit
+ *
+ * @param limit Maximum number of bytes to be read from
+ * the beginning of the file. Specifying UINT_MAX
+ * resets the limit to the original end of the stream.
+ * Returns the previously set limit. */
+ unsigned int SetReadLimit(unsigned int _limit) {
+ unsigned int prev = GetReadLimit();
+ if (UINT_MAX == _limit) {
+ mLimit = mEnd;
+ return prev;
+ }
+
+ mLimit = mBuffer + _limit;
+ if (mLimit > mEnd) {
+ throw DeadlyImportError("StreamReader: Invalid read limit");
+ }
+ return prev;
+ }
+
+ // ---------------------------------------------------------------------
+ /** Get the current read limit in bytes. Reading over this limit
+ * accidentally raises an exception. */
+ unsigned int GetReadLimit() const {
+ return (unsigned int)(mLimit - mBuffer);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Skip to the read limit in bytes. Reading over this limit
+ * accidentally raises an exception. */
+ void SkipToReadLimit() {
+ mCurrent = mLimit;
+ }
+
+ // ---------------------------------------------------------------------
+ /** overload operator>> and allow chaining of >> ops. */
+ template <typename T>
+ StreamReader &operator>>(T &f) {
+ f = Get<T>();
+ return *this;
+ }
+
+ // ---------------------------------------------------------------------
+ /** Generic read method. ByteSwap::Swap(T*) *must* be defined */
+ template <typename T>
+ T Get() {
+ if (mCurrent + sizeof(T) > mLimit) {
+ throw DeadlyImportError("End of file or stream limit was reached");
+ }
+
+ T f;
+ ::memcpy(&f, mCurrent, sizeof(T));
+ Intern::Getter<SwapEndianess, T, RuntimeSwitch>()(&f, mLe);
+ mCurrent += sizeof(T);
+
+ return f;
+ }
+
+private:
+ // ---------------------------------------------------------------------
+ void InternBegin() {
+ if (nullptr == mStream) {
+ throw DeadlyImportError("StreamReader: Unable to open file");
+ }
+
+ const size_t filesize = mStream->FileSize() - mStream->Tell();
+ if (0 == filesize) {
+ throw DeadlyImportError("StreamReader: File is empty or EOF is already reached");
+ }
+
+ mCurrent = mBuffer = new int8_t[filesize];
+ const size_t read = mStream->Read(mCurrent, 1, filesize);
+ // (read < s) can only happen if the stream was opened in text mode, in which case FileSize() is not reliable
+ ai_assert(read <= filesize);
+ mEnd = mLimit = &mBuffer[read - 1] + 1;
+ }
+
+private:
+ std::shared_ptr<IOStream> mStream;
+ int8_t *mBuffer;
+ int8_t *mCurrent;
+ int8_t *mEnd;
+ int8_t *mLimit;
+ bool mLe;
+};
+
+// --------------------------------------------------------------------------------------------
+// `static` StreamReaders. Their byte order is fixed and they might be a little bit faster.
+#ifdef AI_BUILD_BIG_ENDIAN
+typedef StreamReader<true> StreamReaderLE;
+typedef StreamReader<false> StreamReaderBE;
+#else
+typedef StreamReader<true> StreamReaderBE;
+typedef StreamReader<false> StreamReaderLE;
+#endif
+
+// `dynamic` StreamReader. The byte order of the input data is specified in the
+// c'tor. This involves runtime branching and might be a little bit slower.
+typedef StreamReader<true, true> StreamReaderAny;
+
+} // end namespace Assimp
+
+#endif // !! AI_STREAMREADER_H_INCLUDED
diff --git a/src/mesh/assimp-master/include/assimp/StreamWriter.h b/src/mesh/assimp-master/include/assimp/StreamWriter.h
new file mode 100644
index 0000000..1bdfcc6
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/StreamWriter.h
@@ -0,0 +1,307 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file Defines the StreamWriter class which writes data to
+ * a binary stream with a well-defined endianness. */
+#pragma once
+#ifndef AI_STREAMWRITER_H_INCLUDED
+#define AI_STREAMWRITER_H_INCLUDED
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/ByteSwapper.h>
+#include <assimp/IOStream.hpp>
+
+#include <memory>
+#include <vector>
+
+namespace Assimp {
+
+// --------------------------------------------------------------------------------------------
+/** Wrapper class around IOStream to allow for consistent writing of binary data in both
+ * little and big endian format. Don't attempt to instance the template directly. Use
+ * StreamWriterLE to write to a little-endian stream and StreamWriterBE to write to a
+ * BE stream. Alternatively, there is StreamWriterAny if the endianness of the output
+ * stream is to be determined at runtime.
+ */
+// --------------------------------------------------------------------------------------------
+template <bool SwapEndianess = false, bool RuntimeSwitch = false>
+class StreamWriter
+{
+ enum {
+ INITIAL_CAPACITY = 1024
+ };
+
+public:
+
+ // ---------------------------------------------------------------------
+ /** Construction from a given stream with a well-defined endianness.
+ *
+ * The StreamReader holds a permanent strong reference to the
+ * stream, which is released upon destruction.
+ * @param stream Input stream. The stream is not re-seeked and writing
+ continues at the current position of the stream cursor.
+ * @param le If @c RuntimeSwitch is true: specifies whether the
+ * stream is in little endian byte order. Otherwise the
+ * endianness information is defined by the @c SwapEndianess
+ * template parameter and this parameter is meaningless. */
+ StreamWriter(std::shared_ptr<IOStream> stream, bool le = false)
+ : stream(stream)
+ , le(le)
+ , cursor()
+ {
+ ai_assert(stream);
+ buffer.reserve(INITIAL_CAPACITY);
+ }
+
+ // ---------------------------------------------------------------------
+ StreamWriter(IOStream* stream, bool le = false)
+ : stream(std::shared_ptr<IOStream>(stream))
+ , le(le)
+ , cursor()
+ {
+ ai_assert(stream);
+ buffer.reserve(INITIAL_CAPACITY);
+ }
+
+ // ---------------------------------------------------------------------
+ ~StreamWriter() {
+ stream->Write(buffer.data(), 1, buffer.size());
+ stream->Flush();
+ }
+
+public:
+
+ // ---------------------------------------------------------------------
+ /** Flush the contents of the internal buffer, and the output IOStream */
+ void Flush()
+ {
+ stream->Write(buffer.data(), 1, buffer.size());
+ stream->Flush();
+ buffer.clear();
+ cursor = 0;
+ }
+
+ // ---------------------------------------------------------------------
+ /** Seek to the given offset / origin in the output IOStream.
+ *
+ * Flushes the internal buffer and the output IOStream prior to seeking. */
+ aiReturn Seek(size_t pOffset, aiOrigin pOrigin=aiOrigin_SET)
+ {
+ Flush();
+ return stream->Seek(pOffset, pOrigin);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Tell the current position in the output IOStream.
+ *
+ * First flushes the internal buffer and the output IOStream. */
+ size_t Tell()
+ {
+ Flush();
+ return stream->Tell();
+ }
+
+public:
+
+ // ---------------------------------------------------------------------
+ /** Write a float to the stream */
+ void PutF4(float f)
+ {
+ Put(f);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Write a double to the stream */
+ void PutF8(double d) {
+ Put(d);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Write a signed 16 bit integer to the stream */
+ void PutI2(int16_t n) {
+ Put(n);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Write a signed 8 bit integer to the stream */
+ void PutI1(int8_t n) {
+ Put(n);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Write an signed 32 bit integer to the stream */
+ void PutI4(int32_t n) {
+ Put(n);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Write a signed 64 bit integer to the stream */
+ void PutI8(int64_t n) {
+ Put(n);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Write a unsigned 16 bit integer to the stream */
+ void PutU2(uint16_t n) {
+ Put(n);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Write a unsigned 8 bit integer to the stream */
+ void PutU1(uint8_t n) {
+ Put(n);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Write an unsigned 32 bit integer to the stream */
+ void PutU4(uint32_t n) {
+ Put(n);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Write a unsigned 64 bit integer to the stream */
+ void PutU8(uint64_t n) {
+ Put(n);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Write a single character to the stream */
+ void PutChar(char c) {
+ Put(c);
+ }
+
+ // ---------------------------------------------------------------------
+ /** Write an aiString to the stream */
+ void PutString(const aiString& s)
+ {
+ // as Put(T f) below
+ if (cursor + s.length >= buffer.size()) {
+ buffer.resize(cursor + s.length);
+ }
+ void* dest = &buffer[cursor];
+ ::memcpy(dest, s.C_Str(), s.length);
+ cursor += s.length;
+ }
+
+ // ---------------------------------------------------------------------
+ /** Write a std::string to the stream */
+ void PutString(const std::string& s)
+ {
+ // as Put(T f) below
+ if (cursor + s.size() >= buffer.size()) {
+ buffer.resize(cursor + s.size());
+ }
+ void* dest = &buffer[cursor];
+ ::memcpy(dest, s.c_str(), s.size());
+ cursor += s.size();
+ }
+
+public:
+
+ // ---------------------------------------------------------------------
+ /** overload operator<< and allow chaining of MM ops. */
+ template <typename T>
+ StreamWriter& operator << (T f) {
+ Put(f);
+ return *this;
+ }
+
+ // ---------------------------------------------------------------------
+ std::size_t GetCurrentPos() const {
+ return cursor;
+ }
+
+ // ---------------------------------------------------------------------
+ void SetCurrentPos(std::size_t new_cursor) {
+ cursor = new_cursor;
+ }
+
+ // ---------------------------------------------------------------------
+ /** Generic write method. ByteSwap::Swap(T*) *must* be defined */
+ template <typename T>
+ void Put(T f) {
+ Intern :: Getter<SwapEndianess,T,RuntimeSwitch>() (&f, le);
+
+ if (cursor + sizeof(T) >= buffer.size()) {
+ buffer.resize(cursor + sizeof(T));
+ }
+
+ void* dest = &buffer[cursor];
+
+ // reinterpret_cast + assignment breaks strict aliasing rules
+ // and generally causes trouble on platforms such as ARM that
+ // do not silently ignore alignment faults.
+ ::memcpy(dest, &f, sizeof(T));
+ cursor += sizeof(T);
+ }
+
+private:
+
+ std::shared_ptr<IOStream> stream;
+ bool le;
+
+ std::vector<uint8_t> buffer;
+ std::size_t cursor;
+};
+
+
+// --------------------------------------------------------------------------------------------
+// `static` StreamWriter. Their byte order is fixed and they might be a little bit faster.
+#ifdef AI_BUILD_BIG_ENDIAN
+ typedef StreamWriter<true> StreamWriterLE;
+ typedef StreamWriter<false> StreamWriterBE;
+#else
+ typedef StreamWriter<true> StreamWriterBE;
+ typedef StreamWriter<false> StreamWriterLE;
+#endif
+
+// `dynamic` StreamWriter. The byte order of the input data is specified in the
+// c'tor. This involves runtime branching and might be a little bit slower.
+typedef StreamWriter<true,true> StreamWriterAny;
+
+} // end namespace Assimp
+
+#endif // !! AI_STREAMWriter_H_INCLUDED
diff --git a/src/mesh/assimp-master/include/assimp/StringComparison.h b/src/mesh/assimp-master/include/assimp/StringComparison.h
new file mode 100644
index 0000000..0518d42
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/StringComparison.h
@@ -0,0 +1,224 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Definition of platform independent string workers:
+
+ ASSIMP_itoa10
+ ASSIMP_stricmp
+ ASSIMP_strincmp
+
+ These functions are not consistently available on all platforms,
+ or the provided implementations behave too differently.
+*/
+#pragma once
+#ifndef INCLUDED_AI_STRING_WORKERS_H
+#define INCLUDED_AI_STRING_WORKERS_H
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/StringComparison.h>
+#include <assimp/ai_assert.h>
+#include <assimp/defs.h>
+
+#include <cstdint>
+#include <cstring>
+#include <string>
+
+namespace Assimp {
+
+// -------------------------------------------------------------------------------
+/** @brief itoa with a fixed base 10
+ * 'itoa' is not consistently available on all platforms so it is quite useful
+ * to have a small replacement function here. No need to use a full sprintf()
+ * if we just want to print a number ...
+ * @param out Output buffer
+ * @param max Maximum number of characters to be written, including '\0'.
+ * This parameter may not be 0.
+ * @param number Number to be written
+ * @return Length of the output string, excluding the '\0'
+ */
+inline unsigned int ASSIMP_itoa10(char *out, unsigned int max, int32_t number) {
+ ai_assert(nullptr != out);
+
+ // write the unary minus to indicate we have a negative number
+ unsigned int written = 1u;
+ if (number < 0 && written < max) {
+ *out++ = '-';
+ ++written;
+ number = -number;
+ }
+
+ // We begin with the largest number that is not zero.
+ int32_t cur = 1000000000; // 2147483648
+ bool mustPrint = false;
+ while (written < max) {
+
+ const unsigned int digit = number / cur;
+ if (mustPrint || digit > 0 || 1 == cur) {
+ // print all future zero's from now
+ mustPrint = true;
+
+ *out++ = '0' + static_cast<char>(digit);
+
+ ++written;
+ number -= digit * cur;
+ if (1 == cur) {
+ break;
+ }
+ }
+ cur /= 10;
+ }
+
+ // append a terminal zero
+ *out++ = '\0';
+ return written - 1;
+}
+
+// -------------------------------------------------------------------------------
+/** @brief itoa with a fixed base 10 (Secure template overload)
+ * The compiler should choose this function if he or she is able to determine the
+ * size of the array automatically.
+ */
+template <size_t length>
+inline unsigned int ASSIMP_itoa10(char (&out)[length], int32_t number) {
+ return ASSIMP_itoa10(out, length, number);
+}
+
+// -------------------------------------------------------------------------------
+/** @brief Helper function to do platform independent string comparison.
+ *
+ * This is required since stricmp() is not consistently available on
+ * all platforms. Some platforms use the '_' prefix, others don't even
+ * have such a function.
+ *
+ * @param s1 First input string
+ * @param s2 Second input string
+ * @return 0 if the given strings are identical
+ */
+inline int ASSIMP_stricmp(const char *s1, const char *s2) {
+ ai_assert(nullptr != s1);
+ ai_assert(nullptr != s2);
+
+#if (defined _MSC_VER)
+
+ return ::_stricmp(s1, s2);
+#else
+ char c1, c2;
+ do {
+ c1 = tolower((unsigned char)*(s1++));
+ c2 = tolower((unsigned char)*(s2++));
+ } while (c1 && (c1 == c2));
+ return c1 - c2;
+#endif
+}
+
+// -------------------------------------------------------------------------------
+/** @brief Case independent comparison of two std::strings
+ *
+ * @param a First string
+ * @param b Second string
+ * @return 0 if a == b
+ */
+inline int ASSIMP_stricmp(const std::string &a, const std::string &b) {
+ int i = (int)b.length() - (int)a.length();
+ return (i ? i : ASSIMP_stricmp(a.c_str(), b.c_str()));
+}
+
+// -------------------------------------------------------------------------------
+/** @brief Helper function to do platform independent string comparison.
+ *
+ * This is required since strincmp() is not consistently available on
+ * all platforms. Some platforms use the '_' prefix, others don't even
+ * have such a function.
+ *
+ * @param s1 First input string
+ * @param s2 Second input string
+ * @param n Maximum number of characters to compare
+ * @return 0 if the given strings are identical
+ */
+inline int ASSIMP_strincmp(const char *s1, const char *s2, unsigned int n) {
+ ai_assert(nullptr != s1);
+ ai_assert(nullptr != s2);
+ if (!n) {
+ return 0;
+ }
+
+#if (defined _MSC_VER)
+
+ return ::_strnicmp(s1, s2, n);
+
+#elif defined(__GNUC__)
+
+ return ::strncasecmp(s1, s2, n);
+
+#else
+ char c1, c2;
+ unsigned int p = 0;
+ do {
+ if (p++ >= n) return 0;
+ c1 = tolower((unsigned char)*(s1++));
+ c2 = tolower((unsigned char)*(s2++));
+ } while (c1 && (c1 == c2));
+
+ return c1 - c2;
+#endif
+}
+
+// -------------------------------------------------------------------------------
+/** @brief Evaluates an integer power
+ *
+ * todo: move somewhere where it fits better in than here
+ */
+inline unsigned int integer_pow(unsigned int base, unsigned int power) {
+ unsigned int res = 1;
+ for (unsigned int i = 0; i < power; ++i) {
+ res *= base;
+ }
+
+ return res;
+}
+
+} // namespace Assimp
+
+#endif // ! AI_STRINGCOMPARISON_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/StringUtils.h b/src/mesh/assimp-master/include/assimp/StringUtils.h
new file mode 100644
index 0000000..59c6e9e
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/StringUtils.h
@@ -0,0 +1,279 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+#pragma once
+#ifndef INCLUDED_AI_STRINGUTILS_H
+#define INCLUDED_AI_STRINGUTILS_H
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/defs.h>
+
+#include <cstdarg>
+#include <algorithm>
+#include <cctype>
+#include <cstdlib>
+#include <locale>
+#include <sstream>
+#include <iomanip>
+
+#ifdef _MSC_VER
+#define AI_SIZEFMT "%Iu"
+#else
+#define AI_SIZEFMT "%zu"
+#endif
+
+// ---------------------------------------------------------------------------------
+/// @fn ai_snprintf
+/// @brief The portable version of the function snprintf ( C99 standard ), which
+/// works on visual studio compilers 2013 and earlier.
+/// @param outBuf The buffer to write in
+/// @param size The buffer size
+/// @param format The format string
+/// @param ap The additional arguments.
+/// @return The number of written characters if the buffer size was big enough.
+/// If an encoding error occurs, a negative number is returned.
+// ---------------------------------------------------------------------------------
+#if defined(_MSC_VER) && _MSC_VER < 1900
+
+inline int c99_ai_vsnprintf(char *outBuf, size_t size, const char *format, va_list ap) {
+ int count(-1);
+ if (0 != size) {
+ count = _vsnprintf_s(outBuf, size, _TRUNCATE, format, ap);
+ }
+ if (count == -1) {
+ count = _vscprintf(format, ap);
+ }
+
+ return count;
+}
+
+inline int ai_snprintf(char *outBuf, size_t size, const char *format, ...) {
+ int count;
+ va_list ap;
+
+ va_start(ap, format);
+ count = c99_ai_vsnprintf(outBuf, size, format, ap);
+ va_end(ap);
+
+ return count;
+}
+
+#elif defined(__MINGW32__)
+#define ai_snprintf __mingw_snprintf
+#else
+#define ai_snprintf snprintf
+#endif
+
+// ---------------------------------------------------------------------------------
+/// @fn to_string
+/// @brief The portable version of to_string ( some gcc-versions on embedded
+/// devices are not supporting this).
+/// @param value The value to write into the std::string.
+/// @return The value as a std::string
+// ---------------------------------------------------------------------------------
+template <typename T>
+AI_FORCE_INLINE std::string ai_to_string(T value) {
+ std::ostringstream os;
+ os << value;
+
+ return os.str();
+}
+
+// ---------------------------------------------------------------------------------
+/// @fn ai_strtof
+/// @brief The portable version of strtof.
+/// @param begin The first character of the string.
+/// @param end The last character
+/// @return The float value, 0.0f in case of an error.
+// ---------------------------------------------------------------------------------
+AI_FORCE_INLINE
+float ai_strtof(const char *begin, const char *end) {
+ if (nullptr == begin) {
+ return 0.0f;
+ }
+ float val(0.0f);
+ if (nullptr == end) {
+ val = static_cast<float>(::atof(begin));
+ } else {
+ std::string::size_type len(end - begin);
+ std::string token(begin, len);
+ val = static_cast<float>(::atof(token.c_str()));
+ }
+
+ return val;
+}
+
+// ---------------------------------------------------------------------------------
+/// @fn DecimalToHexa
+/// @brief The portable to convert a decimal value into a hexadecimal string.
+/// @param toConvert Value to convert
+/// @return The hexadecimal string, is empty in case of an error.
+// ---------------------------------------------------------------------------------
+template <class T>
+AI_FORCE_INLINE std::string ai_decimal_to_hexa(T toConvert) {
+ std::string result;
+ std::stringstream ss;
+ ss << std::hex << toConvert;
+ ss >> result;
+
+ for (size_t i = 0; i < result.size(); ++i) {
+ result[i] = (char)toupper((unsigned char)result[i]);
+ }
+
+ return result;
+}
+
+// ---------------------------------------------------------------------------------
+/// @brief translate RGBA to String
+/// @param r aiColor.r
+/// @param g aiColor.g
+/// @param b aiColor.b
+/// @param a aiColor.a
+/// @param with_head #
+/// @return The hexadecimal string, is empty in case of an error.
+// ---------------------------------------------------------------------------------
+AI_FORCE_INLINE std::string ai_rgba2hex(int r, int g, int b, int a, bool with_head) {
+ std::stringstream ss;
+ if (with_head) {
+ ss << "#";
+ }
+ ss << std::hex << std::setfill('0') << std::setw(8) << (r << 24 | g << 16 | b << 8 | a);
+
+ return ss.str();
+}
+
+// ---------------------------------------------------------------------------------
+/// @brief Performs a trim from start (in place)
+/// @param s string to trim.
+AI_FORCE_INLINE void ai_trim_left(std::string &s) {
+ s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](unsigned char ch) {
+ return !std::isspace(ch);
+ }));
+}
+
+// ---------------------------------------------------------------------------------
+/// @brief Performs a trim from end (in place).
+/// @param s string to trim.
+// ---------------------------------------------------------------------------------
+// ---------------------------------------------------------------------------------
+AI_FORCE_INLINE void ai_trim_right(std::string &s) {
+ s.erase(std::find_if(s.rbegin(), s.rend(), [](unsigned char ch) {
+ return !std::isspace(ch);
+ }).base(), s.end());
+}
+
+// ---------------------------------------------------------------------------------
+/// @brief Performs a trim from both ends (in place).
+/// @param s string to trim.
+// ---------------------------------------------------------------------------------
+AI_FORCE_INLINE std::string ai_trim(std::string &s) {
+ std::string out(s);
+ ai_trim_left(out);
+ ai_trim_right(out);
+
+ return out;
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE char_t ai_tolower(char_t in) {
+ return (in >= (char_t)'A' && in <= (char_t)'Z') ? (char_t)(in + 0x20) : in;
+}
+
+// ---------------------------------------------------------------------------------
+/// @brief Performs a ToLower-operation and return the lower-case string.
+/// @param in The incoming string.
+/// @return The string as lowercase.
+// ---------------------------------------------------------------------------------
+AI_FORCE_INLINE std::string ai_tolower(const std::string &in) {
+ std::string out(in);
+ ai_trim_left(out);
+ ai_trim_right(out);
+ std::transform(out.begin(), out.end(), out.begin(), [](unsigned char c) { return ai_tolower(c); });
+ return out;
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE char_t ai_toupper(char_t in) {
+ return (in >= (char_t)'a' && in <= (char_t)'z') ? (char_t)(in - 0x20) : in;
+}
+
+// ---------------------------------------------------------------------------------
+/// @brief Performs a ToLower-operation and return the upper-case string.
+/// @param in The incoming string.
+/// @return The string as uppercase.
+AI_FORCE_INLINE std::string ai_str_toupper(const std::string &in) {
+ std::string out(in);
+ std::transform(out.begin(), out.end(), out.begin(), [](char c) { return ai_toupper(c); });
+ return out;
+}
+
+// ---------------------------------------------------------------------------------
+/// @brief Make a string printable by replacing all non-printable characters with
+/// the specified placeholder character.
+/// @param in The incoming string.
+/// @param placeholder Placeholder character, default is a question mark.
+/// @return The string, with all non-printable characters replaced.
+AI_FORCE_INLINE std::string ai_str_toprintable(const std::string &in, char placeholder = '?') {
+ std::string out(in);
+ std::transform(out.begin(), out.end(), out.begin(), [placeholder] (unsigned char c) {
+ return isprint(c) ? (char)c : placeholder;
+ });
+ return out;
+}
+
+// ---------------------------------------------------------------------------------
+/// @brief Make a string printable by replacing all non-printable characters with
+/// the specified placeholder character.
+/// @param in The incoming string.
+/// @param len The length of the incoming string.
+/// @param placeholder Placeholder character, default is a question mark.
+/// @return The string, with all non-printable characters replaced. Will return an
+/// empty string if in is null or len is <= 0.
+AI_FORCE_INLINE std::string ai_str_toprintable(const char *in, int len, char placeholder = '?') {
+ return (in && len > 0) ? ai_str_toprintable(std::string(in, len), placeholder) : std::string();
+}
+
+
+#endif // INCLUDED_AI_STRINGUTILS_H
diff --git a/src/mesh/assimp-master/include/assimp/Subdivision.h b/src/mesh/assimp-master/include/assimp/Subdivision.h
new file mode 100644
index 0000000..9dfb389
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Subdivision.h
@@ -0,0 +1,134 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines a helper class to evaluate subdivision surfaces.*/
+#pragma once
+#ifndef AI_SUBDISIVION_H_INC
+#define AI_SUBDISIVION_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/types.h>
+
+struct aiMesh;
+
+namespace Assimp {
+
+// ------------------------------------------------------------------------------
+/** Helper class to evaluate subdivision surfaces. Different algorithms
+ * are provided for choice. */
+// ------------------------------------------------------------------------------
+class ASSIMP_API Subdivider {
+public:
+
+ /** Enumerates all supported subvidision algorithms */
+ enum Algorithm {
+ CATMULL_CLARKE = 0x1
+ };
+
+ virtual ~Subdivider();
+
+ // ---------------------------------------------------------------
+ /** Create a subdivider of a specific type
+ *
+ * @param algo Algorithm to be used for subdivision
+ * @return Subdivider instance. */
+ static Subdivider* Create (Algorithm algo);
+
+ // ---------------------------------------------------------------
+ /** Subdivide a mesh using the selected algorithm
+ *
+ * @param mesh First mesh to be subdivided. Must be in verbose
+ * format.
+ * @param out Receives the output mesh, allocated by me.
+ * @param num Number of subdivisions to perform.
+ * @param discard_input If true is passed, the input mesh is
+ * deleted after the subdivision is complete. This can
+ * improve performance because it allows the optimization
+ * to reuse the existing mesh for intermediate results.
+ * @pre out!=mesh*/
+ virtual void Subdivide ( aiMesh* mesh,
+ aiMesh*& out, unsigned int num,
+ bool discard_input = false) = 0;
+
+ // ---------------------------------------------------------------
+ /** Subdivide multiple meshes using the selected algorithm. This
+ * avoids erroneous smoothing on objects consisting of multiple
+ * per-material meshes. Usually, most 3d modellers smooth on a
+ * per-object base, regardless the materials assigned to the
+ * meshes.
+ *
+ * @param smesh Array of meshes to be subdivided. Must be in
+ * verbose format.
+ * @param nmesh Number of meshes in smesh.
+ * @param out Receives the output meshes. The array must be
+ * sufficiently large (at least @c nmesh elements) and may not
+ * overlap the input array. Output meshes map one-to-one to
+ * their corresponding input meshes. The meshes are allocated
+ * by the function.
+ * @param discard_input If true is passed, input meshes are
+ * deleted after the subdivision is complete. This can
+ * improve performance because it allows the optimization
+ * of reusing existing meshes for intermediate results.
+ * @param num Number of subdivisions to perform.
+ * @pre nmesh != 0, smesh and out may not overlap*/
+ virtual void Subdivide (
+ aiMesh** smesh,
+ size_t nmesh,
+ aiMesh** out,
+ unsigned int num,
+ bool discard_input = false) = 0;
+
+};
+
+inline
+Subdivider::~Subdivider() {
+ // empty
+}
+
+} // end namespace Assimp
+
+
+#endif // !! AI_SUBDISIVION_H_INC
+
diff --git a/src/mesh/assimp-master/include/assimp/TinyFormatter.h b/src/mesh/assimp-master/include/assimp/TinyFormatter.h
new file mode 100644
index 0000000..df2a32e
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/TinyFormatter.h
@@ -0,0 +1,181 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file TinyFormatter.h
+ * @brief Utility to format log messages more easily. Introduced
+ * to get rid of the boost::format dependency. Much slinker,
+ * basically just extends stringstream.
+ */
+#pragma once
+#ifndef INCLUDED_TINY_FORMATTER_H
+#define INCLUDED_TINY_FORMATTER_H
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <sstream>
+
+namespace Assimp {
+namespace Formatter {
+
+// ------------------------------------------------------------------------------------------------
+/** stringstream utility. Usage:
+ * @code
+ * void writelog(const std::string&s);
+ * void writelog(const std::wstring&s);
+ * ...
+ * writelog(format()<< "hi! this is a number: " << 4);
+ * writelog(wformat()<< L"hi! this is a number: " << 4);
+ *
+ * @endcode */
+template < typename T,
+ typename CharTraits = std::char_traits<T>,
+ typename Allocator = std::allocator<T> >
+class basic_formatter {
+public:
+ typedef class std::basic_string<T,CharTraits,Allocator> string;
+ typedef class std::basic_ostringstream<T,CharTraits,Allocator> stringstream;
+
+ basic_formatter() {
+ // empty
+ }
+
+ /* Allow basic_formatter<T>'s to be used almost interchangeably
+ * with std::(w)string or const (w)char* arguments because the
+ * conversion c'tor is called implicitly. */
+ template <typename TT>
+ basic_formatter(const TT& sin) {
+ underlying << sin;
+ }
+
+ // Same problem as the copy constructor below, but with root cause is that stream move
+ // is not permitted on older GCC versions. Small performance impact on those platforms.
+#if defined(__GNUC__) && (__GNUC__ == 4 && __GNUC_MINOR__ <= 9)
+ basic_formatter(basic_formatter&& other) {
+ underlying << (string)other;
+ }
+#else
+ basic_formatter(basic_formatter&& other)
+ : underlying(std::move(other.underlying)) {
+ }
+#endif
+
+ // The problem described here:
+ // https://sourceforge.net/tracker/?func=detail&atid=1067632&aid=3358562&group_id=226462
+ // can also cause trouble here. Apparently, older gcc versions sometimes copy temporaries
+ // being bound to const ref& function parameters. Copying streams is not permitted, though.
+ // This workaround avoids this by manually specifying a copy ctor.
+#if !defined(__GNUC__) || !defined(__APPLE__) || __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+ explicit basic_formatter(const basic_formatter& other) {
+ underlying << (string)other;
+ }
+#endif
+
+ operator string () const {
+ return underlying.str();
+ }
+
+ /* note - this is declared const because binding temporaries does only
+ * work for const references, so many function prototypes will
+ * include const basic_formatter<T>& s but might still want to
+ * modify the formatted string without the need for a full copy.*/
+ template <typename TToken, typename std::enable_if<!std::is_base_of<std::exception, TToken>::value>::type * = nullptr>
+ const basic_formatter &operator<<(const TToken &s) const {
+ underlying << s;
+ return *this;
+ }
+
+ template <typename TToken, typename std::enable_if<std::is_base_of<std::exception, TToken>::value>::type * = nullptr>
+ const basic_formatter &operator<<(const TToken &s) const {
+ underlying << s.what();
+ return *this;
+ }
+
+ template <typename TToken, typename std::enable_if<!std::is_base_of<std::exception, TToken>::value>::type * = nullptr>
+ basic_formatter &operator<<(const TToken &s) {
+ underlying << s;
+ return *this;
+ }
+
+ template <typename TToken, typename std::enable_if<std::is_base_of<std::exception, TToken>::value>::type * = nullptr>
+ basic_formatter &operator<<(const TToken &s) {
+ underlying << s.what();
+ return *this;
+ }
+
+
+ // comma operator overloaded as well, choose your preferred way.
+ template <typename TToken>
+ const basic_formatter& operator, (const TToken& s) const {
+ *this << s;
+ return *this;
+ }
+
+ template <typename TToken>
+ basic_formatter& operator, (const TToken& s) {
+ *this << s;
+ return *this;
+ }
+
+ // Fix for MSVC8
+ // See https://sourceforge.net/projects/assimp/forums/forum/817654/topic/4372824
+ template <typename TToken>
+ basic_formatter& operator, (TToken& s) {
+ *this << s;
+ return *this;
+ }
+
+
+private:
+ mutable stringstream underlying;
+};
+
+
+typedef basic_formatter< char > format;
+typedef basic_formatter< wchar_t > wformat;
+
+} // ! namespace Formatter
+
+} // ! namespace Assimp
+
+#endif
diff --git a/src/mesh/assimp-master/include/assimp/Vertex.h b/src/mesh/assimp-master/include/assimp/Vertex.h
new file mode 100644
index 0000000..fd7eb03
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/Vertex.h
@@ -0,0 +1,299 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+/** @file Defines a helper class to represent an interleaved vertex
+ along with arithmetic operations to support vertex operations
+ such as subdivision, smoothing etc.
+
+ While the code is kept as general as possible, arithmetic operations
+ that are not currently well-defined (and would cause compile errors
+ due to missing operators in the math library), are commented.
+ */
+#pragma once
+#ifndef AI_VERTEX_H_INC
+#define AI_VERTEX_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/vector3.h>
+#include <assimp/mesh.h>
+#include <assimp/ai_assert.h>
+
+#include <functional>
+
+namespace Assimp {
+
+ ///////////////////////////////////////////////////////////////////////////
+ // std::plus-family operates on operands with identical types - we need to
+ // support all the (vectype op float) combinations in vector maths.
+ // Providing T(float) would open the way to endless implicit conversions.
+ ///////////////////////////////////////////////////////////////////////////
+ namespace Intern {
+ template <typename T0, typename T1, typename TRES = T0> struct plus {
+ TRES operator() (const T0& t0, const T1& t1) const {
+ return t0+t1;
+ }
+ };
+ template <typename T0, typename T1, typename TRES = T0> struct minus {
+ TRES operator() (const T0& t0, const T1& t1) const {
+ return t0-t1;
+ }
+ };
+ template <typename T0, typename T1, typename TRES = T0> struct multiplies {
+ TRES operator() (const T0& t0, const T1& t1) const {
+ return t0*t1;
+ }
+ };
+ template <typename T0, typename T1, typename TRES = T0> struct divides {
+ TRES operator() (const T0& t0, const T1& t1) const {
+ return t0/t1;
+ }
+ };
+ }
+
+// ------------------------------------------------------------------------------------------------
+/** Intermediate description a vertex with all possible components. Defines a full set of
+ * operators, so you may use such a 'Vertex' in basic arithmetic. All operators are applied
+ * to *all* vertex components equally. This is useful for stuff like interpolation
+ * or subdivision, but won't work if special handling is required for some vertex components. */
+// ------------------------------------------------------------------------------------------------
+class Vertex {
+ friend Vertex operator + (const Vertex&,const Vertex&);
+ friend Vertex operator - (const Vertex&,const Vertex&);
+ friend Vertex operator * (const Vertex&,ai_real);
+ friend Vertex operator / (const Vertex&,ai_real);
+ friend Vertex operator * (ai_real, const Vertex&);
+
+public:
+ Vertex() {}
+
+ // ----------------------------------------------------------------------------
+ /** Extract a particular vertex from a mesh and interleave all components */
+ explicit Vertex(const aiMesh* msh, unsigned int idx) {
+ ai_assert(idx < msh->mNumVertices);
+ position = msh->mVertices[idx];
+
+ if (msh->HasNormals()) {
+ normal = msh->mNormals[idx];
+ }
+
+ if (msh->HasTangentsAndBitangents()) {
+ tangent = msh->mTangents[idx];
+ bitangent = msh->mBitangents[idx];
+ }
+
+ for (unsigned int i = 0; msh->HasTextureCoords(i); ++i) {
+ texcoords[i] = msh->mTextureCoords[i][idx];
+ }
+
+ for (unsigned int i = 0; msh->HasVertexColors(i); ++i) {
+ colors[i] = msh->mColors[i][idx];
+ }
+ }
+
+ // ----------------------------------------------------------------------------
+ /** Extract a particular vertex from a anim mesh and interleave all components */
+ explicit Vertex(const aiAnimMesh* msh, unsigned int idx) {
+ ai_assert(idx < msh->mNumVertices);
+ if (msh->HasPositions()) {
+ position = msh->mVertices[idx];
+ }
+
+ if (msh->HasNormals()) {
+ normal = msh->mNormals[idx];
+ }
+
+ if (msh->HasTangentsAndBitangents()) {
+ tangent = msh->mTangents[idx];
+ bitangent = msh->mBitangents[idx];
+ }
+
+ for (unsigned int i = 0; msh->HasTextureCoords(i); ++i) {
+ texcoords[i] = msh->mTextureCoords[i][idx];
+ }
+
+ for (unsigned int i = 0; msh->HasVertexColors(i); ++i) {
+ colors[i] = msh->mColors[i][idx];
+ }
+ }
+
+ Vertex& operator += (const Vertex& v) {
+ *this = *this+v;
+ return *this;
+ }
+
+ Vertex& operator -= (const Vertex& v) {
+ *this = *this-v;
+ return *this;
+ }
+
+ Vertex& operator *= (ai_real v) {
+ *this = *this*v;
+ return *this;
+ }
+
+ Vertex& operator /= (ai_real v) {
+ *this = *this/v;
+ return *this;
+ }
+
+ // ----------------------------------------------------------------------------
+ /** Convert back to non-interleaved storage */
+ void SortBack(aiMesh* out, unsigned int idx) const {
+ ai_assert(idx<out->mNumVertices);
+ out->mVertices[idx] = position;
+
+ if (out->HasNormals()) {
+ out->mNormals[idx] = normal;
+ }
+
+ if (out->HasTangentsAndBitangents()) {
+ out->mTangents[idx] = tangent;
+ out->mBitangents[idx] = bitangent;
+ }
+
+ for(unsigned int i = 0; out->HasTextureCoords(i); ++i) {
+ out->mTextureCoords[i][idx] = texcoords[i];
+ }
+
+ for(unsigned int i = 0; out->HasVertexColors(i); ++i) {
+ out->mColors[i][idx] = colors[i];
+ }
+ }
+
+private:
+
+ // ----------------------------------------------------------------------------
+ /** Construct from two operands and a binary operation to combine them */
+ template <template <typename t> class op> static Vertex BinaryOp(const Vertex& v0, const Vertex& v1) {
+ // this is a heavy task for the compiler to optimize ... *pray*
+
+ Vertex res;
+ res.position = op<aiVector3D>()(v0.position,v1.position);
+ res.normal = op<aiVector3D>()(v0.normal,v1.normal);
+ res.tangent = op<aiVector3D>()(v0.tangent,v1.tangent);
+ res.bitangent = op<aiVector3D>()(v0.bitangent,v1.bitangent);
+
+ for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+ res.texcoords[i] = op<aiVector3D>()(v0.texcoords[i],v1.texcoords[i]);
+ }
+ for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_COLOR_SETS; ++i) {
+ res.colors[i] = op<aiColor4D>()(v0.colors[i],v1.colors[i]);
+ }
+ return res;
+ }
+
+ // ----------------------------------------------------------------------------
+ /** This time binary arithmetic of v0 with a floating-point number */
+ template <template <typename, typename, typename> class op> static Vertex BinaryOp(const Vertex& v0, ai_real f) {
+ // this is a heavy task for the compiler to optimize ... *pray*
+
+ Vertex res;
+ res.position = op<aiVector3D,ai_real,aiVector3D>()(v0.position,f);
+ res.normal = op<aiVector3D,ai_real,aiVector3D>()(v0.normal,f);
+ res.tangent = op<aiVector3D,ai_real,aiVector3D>()(v0.tangent,f);
+ res.bitangent = op<aiVector3D,ai_real,aiVector3D>()(v0.bitangent,f);
+
+ for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+ res.texcoords[i] = op<aiVector3D,ai_real,aiVector3D>()(v0.texcoords[i],f);
+ }
+ for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_COLOR_SETS; ++i) {
+ res.colors[i] = op<aiColor4D,ai_real,aiColor4D>()(v0.colors[i],f);
+ }
+ return res;
+ }
+
+ // ----------------------------------------------------------------------------
+ /** This time binary arithmetic of v0 with a floating-point number */
+ template <template <typename, typename, typename> class op> static Vertex BinaryOp(ai_real f, const Vertex& v0) {
+ // this is a heavy task for the compiler to optimize ... *pray*
+
+ Vertex res;
+ res.position = op<ai_real,aiVector3D,aiVector3D>()(f,v0.position);
+ res.normal = op<ai_real,aiVector3D,aiVector3D>()(f,v0.normal);
+ res.tangent = op<ai_real,aiVector3D,aiVector3D>()(f,v0.tangent);
+ res.bitangent = op<ai_real,aiVector3D,aiVector3D>()(f,v0.bitangent);
+
+ for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
+ res.texcoords[i] = op<ai_real,aiVector3D,aiVector3D>()(f,v0.texcoords[i]);
+ }
+ for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_COLOR_SETS; ++i) {
+ res.colors[i] = op<ai_real,aiColor4D,aiColor4D>()(f,v0.colors[i]);
+ }
+ return res;
+ }
+
+public:
+
+ aiVector3D position;
+ aiVector3D normal;
+ aiVector3D tangent, bitangent;
+
+ aiVector3D texcoords[AI_MAX_NUMBER_OF_TEXTURECOORDS];
+ aiColor4D colors[AI_MAX_NUMBER_OF_COLOR_SETS];
+};
+
+// ------------------------------------------------------------------------------------------------
+AI_FORCE_INLINE Vertex operator + (const Vertex& v0,const Vertex& v1) {
+ return Vertex::BinaryOp<std::plus>(v0,v1);
+}
+
+AI_FORCE_INLINE Vertex operator - (const Vertex& v0,const Vertex& v1) {
+ return Vertex::BinaryOp<std::minus>(v0,v1);
+}
+
+AI_FORCE_INLINE Vertex operator * (const Vertex& v0,ai_real f) {
+ return Vertex::BinaryOp<Intern::multiplies>(v0,f);
+}
+
+AI_FORCE_INLINE Vertex operator / (const Vertex& v0,ai_real f) {
+ return Vertex::BinaryOp<Intern::multiplies>(v0,1.f/f);
+}
+
+AI_FORCE_INLINE Vertex operator * (ai_real f,const Vertex& v0) {
+ return Vertex::BinaryOp<Intern::multiplies>(f,v0);
+}
+
+}
+
+#endif // AI_VERTEX_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/XMLTools.h b/src/mesh/assimp-master/include/assimp/XMLTools.h
new file mode 100644
index 0000000..b2766f1
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/XMLTools.h
@@ -0,0 +1,88 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#pragma once
+#ifndef INCLUDED_ASSIMP_XML_TOOLS_H
+#define INCLUDED_ASSIMP_XML_TOOLS_H
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <string>
+
+namespace Assimp {
+ // XML escape the 5 XML special characters (",',<,> and &) in |data|
+ // Based on http://stackoverflow.com/questions/5665231
+ std::string XMLEscape(const std::string& data) {
+ std::string buffer;
+
+ const size_t size = data.size();
+ buffer.reserve(size + size / 8);
+ for(size_t i = 0; i < size; ++i) {
+ const char c = data[i];
+ switch(c) {
+ case '&' :
+ buffer.append("&amp;");
+ break;
+ case '\"':
+ buffer.append("&quot;");
+ break;
+ case '\'':
+ buffer.append("&apos;");
+ break;
+ case '<' :
+ buffer.append("&lt;");
+ break;
+ case '>' :
+ buffer.append("&gt;");
+ break;
+ default:
+ buffer.append(&c, 1);
+ break;
+ }
+ }
+ return buffer;
+ }
+}
+
+#endif // INCLUDED_ASSIMP_XML_TOOLS_H
diff --git a/src/mesh/assimp-master/include/assimp/XmlParser.h b/src/mesh/assimp-master/include/assimp/XmlParser.h
new file mode 100644
index 0000000..28f2be8
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/XmlParser.h
@@ -0,0 +1,493 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+#ifndef INCLUDED_AI_IRRXML_WRAPPER
+#define INCLUDED_AI_IRRXML_WRAPPER
+
+#include <assimp/ai_assert.h>
+#include <assimp/DefaultLogger.hpp>
+
+#include "BaseImporter.h"
+#include "IOStream.hpp"
+
+#include <pugixml.hpp>
+#include <vector>
+
+namespace Assimp {
+
+/// @brief Will find a node by its name.
+struct find_node_by_name_predicate {
+ std::string mName;
+ find_node_by_name_predicate(const std::string &name) :
+ mName(name) {
+ // empty
+ }
+
+ bool operator()(pugi::xml_node node) const {
+ return node.name() == mName;
+ }
+};
+
+/// @brief Will convert an attribute to its int value.
+/// @tparam TNodeType The node type.
+template <class TNodeType>
+struct NodeConverter {
+public:
+ static int to_int(TNodeType &node, const char *attribName) {
+ ai_assert(nullptr != attribName);
+ return node.attribute(attribName).to_int();
+ }
+};
+
+using XmlNode = pugi::xml_node;
+using XmlAttribute = pugi::xml_attribute;
+
+/// @brief The Xml-Parser class.
+///
+/// Use this parser if you have to import any kind of xml-format.
+///
+/// An example:
+/// @code
+/// TXmlParser<XmlNode> theParser;
+/// if (theParser.parse(fileStream)) {
+/// auto node = theParser.getRootNode();
+/// for ( auto currentNode : node.children()) {
+/// // Will loop over all children
+/// }
+/// }
+/// @endcode
+/// @tparam TNodeType
+template <class TNodeType>
+class TXmlParser {
+public:
+ /// @brief The default class constructor.
+ TXmlParser() :
+ mDoc(nullptr),
+ mData() {
+ // empty
+ }
+
+ /// @brief The class destructor.
+ ~TXmlParser() {
+ clear();
+ }
+
+ /// @brief Will clear the parsed xml-file.
+ void clear() {
+ if (mData.empty()) {
+ mDoc = nullptr;
+ return;
+ }
+ mData.clear();
+ delete mDoc;
+ mDoc = nullptr;
+ }
+
+ /// @brief Will search for a child-node by its name
+ /// @param name [in] The name of the child-node.
+ /// @return The node instance or nullptr, if nothing was found.
+ TNodeType *findNode(const std::string &name) {
+ if (name.empty()) {
+ return nullptr;
+ }
+
+ if (nullptr == mDoc) {
+ return nullptr;
+ }
+
+ find_node_by_name_predicate predicate(name);
+ mCurrent = mDoc->find_node(predicate);
+ if (mCurrent.empty()) {
+ return nullptr;
+ }
+
+ return &mCurrent;
+ }
+
+ /// @brief Will return true, if the node is a child-node.
+ /// @param name [in] The name of the child node to look for.
+ /// @return true, if the node is a child-node or false if not.
+ bool hasNode(const std::string &name) {
+ return nullptr != findNode(name);
+ }
+
+ /// @brief Will parse an xml-file from a given stream.
+ /// @param stream The input stream.
+ /// @return true, if the parsing was successful, false if not.
+ bool parse(IOStream *stream) {
+ if (nullptr == stream) {
+ ASSIMP_LOG_DEBUG("Stream is nullptr.");
+ return false;
+ }
+
+ const size_t len = stream->FileSize();
+ mData.resize(len + 1);
+ memset(&mData[0], '\0', len + 1);
+ stream->Read(&mData[0], 1, len);
+
+ mDoc = new pugi::xml_document();
+ pugi::xml_parse_result parse_result = mDoc->load_string(&mData[0], pugi::parse_full);
+ if (parse_result.status == pugi::status_ok) {
+ return true;
+ }
+
+ ASSIMP_LOG_DEBUG("Error while parse xml.", std::string(parse_result.description()), " @ ", parse_result.offset);
+
+ return false;
+ }
+
+ /// @brief Will return truem if a root node is there.
+ /// @return true in case of an existing root.
+ bool hasRoot() const {
+ return nullptr != mDoc;
+ }
+ /// @brief Will return the document pointer, is nullptr if no xml-file was parsed.
+ /// @return The pointer showing to the document.
+ pugi::xml_document *getDocument() const {
+ return mDoc;
+ }
+
+ /// @brief Will return the root node, const version.
+ /// @return The root node.
+ const TNodeType getRootNode() const {
+ static pugi::xml_node none;
+ if (nullptr == mDoc) {
+ return none;
+ }
+ return mDoc->root();
+ }
+
+ /// @brief Will return the root node, non-const version.
+ /// @return The root node.
+ TNodeType getRootNode() {
+ static pugi::xml_node none;
+ if (nullptr == mDoc) {
+ return none;
+ }
+ return mDoc->root();
+ }
+
+ /// @brief Will check if a node with the given name is in.
+ /// @param node [in] The node to look in.
+ /// @param name [in] The name of the child-node.
+ /// @return true, if node was found, false if not.
+ static inline bool hasNode(XmlNode &node, const char *name) {
+ pugi::xml_node child = node.find_child(find_node_by_name_predicate(name));
+ return !child.empty();
+ }
+
+ /// @brief Will check if an attribute is part of the XmlNode.
+ /// @param xmlNode [in] The node to search in.
+ /// @param name [in} The attribute name to look for.
+ /// @return true, if the was found, false if not.
+ static inline bool hasAttribute(XmlNode &xmlNode, const char *name) {
+ pugi::xml_attribute attr = xmlNode.attribute(name);
+ return !attr.empty();
+ }
+
+ /// @brief Will try to get an unsigned int attribute value.
+ /// @param xmlNode [in] The node to search in.
+ /// @param name [in] The attribute name to look for.
+ /// @param val [out] The unsigned int value from the attribute.
+ /// @return true, if the node contains an attribute with the given name and if the value is an unsigned int.
+ static inline bool getUIntAttribute(XmlNode &xmlNode, const char *name, unsigned int &val) {
+ pugi::xml_attribute attr = xmlNode.attribute(name);
+ if (attr.empty()) {
+ return false;
+ }
+
+ val = attr.as_uint();
+ return true;
+ }
+
+ /// @brief Will try to get an int attribute value.
+ /// @param xmlNode [in] The node to search in.
+ /// @param name [in] The attribute name to look for.
+ /// @param val [out] The int value from the attribute.
+ /// @return true, if the node contains an attribute with the given name and if the value is an int.
+ static inline bool getIntAttribute(XmlNode &xmlNode, const char *name, int &val) {
+ pugi::xml_attribute attr = xmlNode.attribute(name);
+ if (attr.empty()) {
+ return false;
+ }
+
+ val = attr.as_int();
+ return true;
+ }
+
+ /// @brief Will try to get a real attribute value.
+ /// @param xmlNode [in] The node to search in.
+ /// @param name [in] The attribute name to look for.
+ /// @param val [out] The real value from the attribute.
+ /// @return true, if the node contains an attribute with the given name and if the value is a real.
+ static inline bool getRealAttribute(XmlNode &xmlNode, const char *name, ai_real &val) {
+ pugi::xml_attribute attr = xmlNode.attribute(name);
+ if (attr.empty()) {
+ return false;
+ }
+#ifdef ASSIMP_DOUBLE_PRECISION
+ val = attr.as_double();
+#else
+ val = attr.as_float();
+#endif
+ return true;
+ }
+
+ /// @brief Will try to get a float attribute value.
+ /// @param xmlNode [in] The node to search in.
+ /// @param name [in] The attribute name to look for.
+ /// @param val [out] The float value from the attribute.
+ /// @return true, if the node contains an attribute with the given name and if the value is a float.
+ static inline bool getFloatAttribute(XmlNode &xmlNode, const char *name, float &val) {
+ pugi::xml_attribute attr = xmlNode.attribute(name);
+ if (attr.empty()) {
+ return false;
+ }
+
+ val = attr.as_float();
+ return true;
+ }
+
+ /// @brief Will try to get a double attribute value.
+ /// @param xmlNode [in] The node to search in.
+ /// @param name [in] The attribute name to look for.
+ /// @param val [out] The double value from the attribute.
+ /// @return true, if the node contains an attribute with the given name and if the value is a double.
+ static inline bool getDoubleAttribute(XmlNode &xmlNode, const char *name, double &val) {
+ pugi::xml_attribute attr = xmlNode.attribute(name);
+ if (attr.empty()) {
+ return false;
+ }
+
+ val = attr.as_double();
+ return true;
+ }
+
+ /// @brief Will try to get a std::string attribute value.
+ /// @param xmlNode [in] The node to search in.
+ /// @param name [in] The attribute name to look for.
+ /// @param val [out] The std::string value from the attribute.
+ /// @return true, if the node contains an attribute with the given name and if the value is a std::string.
+ static inline bool getStdStrAttribute(XmlNode &xmlNode, const char *name, std::string &val) {
+ pugi::xml_attribute attr = xmlNode.attribute(name);
+ if (attr.empty()) {
+ return false;
+ }
+
+ val = attr.as_string();
+ return true;
+ }
+
+ /// @brief Will try to get a bool attribute value.
+ /// @param xmlNode [in] The node to search in.
+ /// @param name [in] The attribute name to look for.
+ /// @param val [out] The bool value from the attribute.
+ /// @return true, if the node contains an attribute with the given name and if the value is a bool.
+ static inline bool getBoolAttribute(XmlNode &xmlNode, const char *name, bool &val) {
+ pugi::xml_attribute attr = xmlNode.attribute(name);
+ if (attr.empty()) {
+ return false;
+ }
+
+ val = attr.as_bool();
+ return true;
+ }
+
+ /// @brief Will try to get the value of the node as a string.
+ /// @param node [in] The node to search in.
+ /// @param text [out] The value as a text.
+ /// @return true, if the value can be read out.
+ static inline bool getValueAsString(XmlNode &node, std::string &text) {
+ text = std::string();
+ if (node.empty()) {
+ return false;
+ }
+
+ text = node.text().as_string();
+
+ return true;
+ }
+
+ /// @brief Will try to get the value of the node as a float.
+ /// @param node [in] The node to search in.
+ /// @param text [out] The value as a float.
+ /// @return true, if the value can be read out.
+ static inline bool getValueAsFloat(XmlNode &node, ai_real &v) {
+ if (node.empty()) {
+ return false;
+ }
+
+ v = node.text().as_float();
+
+ return true;
+ }
+
+ /// @brief Will try to get the value of the node as an integer.
+ /// @param node [in] The node to search in.
+ /// @param text [out] The value as a int.
+ /// @return true, if the value can be read out.
+ static inline bool getValueAsInt(XmlNode &node, int &v) {
+ if (node.empty()) {
+ return false;
+ }
+
+ v = node.text().as_int();
+
+ return true;
+ }
+
+ /// @brief Will try to get the value of the node as an bool.
+ /// @param node [in] The node to search in.
+ /// @param text [out] The value as a bool.
+ /// @return true, if the value can be read out.
+ static inline bool getValueAsBool(XmlNode& node, bool& v)
+ {
+ if (node.empty()) {
+ return false;
+ }
+
+ v = node.text().as_bool();
+
+ return true;
+ }
+
+private:
+ pugi::xml_document *mDoc;
+ TNodeType mCurrent;
+ std::vector<char> mData;
+};
+
+using XmlParser = TXmlParser<pugi::xml_node>;
+
+/// @brief This class declares an iterator to loop through all children of the root node.
+class XmlNodeIterator {
+public:
+ /// @brief The iteration mode.
+ enum IterationMode {
+ PreOrderMode, ///< Pre-ordering, get the values, continue the iteration.
+ PostOrderMode ///< Post-ordering, continue the iteration, get the values.
+ };
+ /// @brief The class constructor
+ /// @param parent [in] The xml parent to to iterate through.
+ /// @param mode [in] The iteration mode.
+ explicit XmlNodeIterator(XmlNode &parent, IterationMode mode) :
+ mParent(parent),
+ mNodes(),
+ mIndex(0) {
+ if (mode == PreOrderMode) {
+ collectChildrenPreOrder(parent);
+ } else {
+ collectChildrenPostOrder(parent);
+ }
+ }
+
+ /// @brief The class destructor.
+ ~XmlNodeIterator() {
+ // empty
+ }
+
+ /// @brief Will iterate through all children in pre-order iteration.
+ /// @param node [in] The nod to iterate through.
+ void collectChildrenPreOrder(XmlNode &node) {
+ if (node != mParent && node.type() == pugi::node_element) {
+ mNodes.push_back(node);
+ }
+ for (XmlNode currentNode : node.children()) {
+ collectChildrenPreOrder(currentNode);
+ }
+ }
+
+ /// @brief Will iterate through all children in post-order iteration.
+ /// @param node [in] The nod to iterate through.
+ void collectChildrenPostOrder(XmlNode &node) {
+ for (XmlNode currentNode = node.first_child(); currentNode; currentNode = currentNode.next_sibling()) {
+ collectChildrenPostOrder(currentNode);
+ }
+ if (node != mParent) {
+ mNodes.push_back(node);
+ }
+ }
+
+ /// @brief Will iterate through all collected nodes.
+ /// @param next The next node, if there is any.
+ /// @return true, if there is a node left.
+ bool getNext(XmlNode &next) {
+ if (mIndex == mNodes.size()) {
+ return false;
+ }
+
+ next = mNodes[mIndex];
+ ++mIndex;
+
+ return true;
+ }
+
+ /// @brief Will return the number of collected nodes.
+ /// @return The number of collected nodes.
+ size_t size() const {
+ return mNodes.size();
+ }
+
+ /// @brief Returns true, if the node is empty.
+ /// @return true, if the node is empty, false if not.
+ bool isEmpty() const {
+ return mNodes.empty();
+ }
+
+ /// @brief Will clear all collected nodes.
+ void clear() {
+ if (mNodes.empty()) {
+ return;
+ }
+
+ mNodes.clear();
+ mIndex = 0;
+ }
+
+private:
+ XmlNode &mParent;
+ std::vector<XmlNode> mNodes;
+ size_t mIndex;
+};
+
+} // namespace Assimp
+
+#endif // !! INCLUDED_AI_IRRXML_WRAPPER
diff --git a/src/mesh/assimp-master/include/assimp/ZipArchiveIOSystem.h b/src/mesh/assimp-master/include/assimp/ZipArchiveIOSystem.h
new file mode 100644
index 0000000..dac60b5
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/ZipArchiveIOSystem.h
@@ -0,0 +1,94 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file ZipArchiveIOSystem.h
+ * @brief Implementation of IOSystem to read a ZIP file from another IOSystem
+*/
+
+#pragma once
+#ifndef AI_ZIPARCHIVEIOSYSTEM_H_INC
+#define AI_ZIPARCHIVEIOSYSTEM_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/IOStream.hpp>
+#include <assimp/IOSystem.hpp>
+
+namespace Assimp {
+
+class ZipArchiveIOSystem : public IOSystem {
+public:
+ //! Open a Zip using the proffered IOSystem
+ ZipArchiveIOSystem(IOSystem* pIOHandler, const char *pFilename, const char* pMode = "r");
+ ZipArchiveIOSystem(IOSystem* pIOHandler, const std::string& rFilename, const char* pMode = "r");
+ virtual ~ZipArchiveIOSystem();
+ bool Exists(const char* pFilename) const override;
+ char getOsSeparator() const override;
+ IOStream* Open(const char* pFilename, const char* pMode = "rb") override;
+ void Close(IOStream* pFile) override;
+
+ // Specific to ZIP
+ //! The file was opened and is a ZIP
+ bool isOpen() const;
+
+ //! Get the list of all files with their simplified paths
+ //! Intended for use within Assimp library boundaries
+ void getFileList(std::vector<std::string>& rFileList) const;
+
+ //! Get the list of all files with extension (must be lowercase)
+ //! Intended for use within Assimp library boundaries
+ void getFileListExtension(std::vector<std::string>& rFileList, const std::string& extension) const;
+
+ static bool isZipArchive(IOSystem* pIOHandler, const char *pFilename);
+ static bool isZipArchive(IOSystem* pIOHandler, const std::string& rFilename);
+
+private:
+ class Implement;
+ Implement *pImpl = nullptr;
+};
+
+} // Namespace Assimp
+
+#endif // AI_ZIPARCHIVEIOSYSTEM_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/aabb.h b/src/mesh/assimp-master/include/assimp/aabb.h
new file mode 100644
index 0000000..51443bc
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/aabb.h
@@ -0,0 +1,83 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#pragma once
+#ifndef AI_AABB_H_INC
+#define AI_AABB_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/vector3.h>
+
+// ---------------------------------------------------------------------------
+/**
+ * An axis-aligned bounding box.
+ */
+struct aiAABB {
+ C_STRUCT aiVector3D mMin;
+ C_STRUCT aiVector3D mMax;
+
+#ifdef __cplusplus
+ /// @brief The default class constructor.
+ aiAABB() :
+ mMin(), mMax() {
+ // empty
+ }
+
+ /// @brief The class constructor with the minimum and maximum.
+ /// @param min The minimum dimension.
+ /// @param max The maximum dimension.
+ aiAABB(const aiVector3D &min, const aiVector3D &max) :
+ mMin(min), mMax(max) {
+ // empty
+ }
+
+ /// @brief The class destructor.
+ ~aiAABB() {
+ // empty
+ }
+
+#endif // __cplusplus
+};
+
+#endif // AI_AABB_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/ai_assert.h b/src/mesh/assimp-master/include/assimp/ai_assert.h
new file mode 100644
index 0000000..b41c08f
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/ai_assert.h
@@ -0,0 +1,74 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file ai_assert.h
+ * @brief Declares the assimp-specific assertion handler.
+ */
+
+#pragma once
+#ifndef AI_ASSERT_H_INC
+#define AI_ASSERT_H_INC
+
+#include <assimp/defs.h>
+
+#if defined(ASSIMP_BUILD_DEBUG)
+
+namespace Assimp {
+
+/// @brief Assert violation behavior can be customized: see AssertHandler.h.
+/// @param failedExpression The expression to validate.
+/// @param file The file location
+/// @param line The line number
+ASSIMP_API void aiAssertViolation(const char* failedExpression, const char* file, int line);
+
+}
+#endif
+
+// Define assertion resolinig
+#if defined(ASSIMP_BUILD_DEBUG)
+# define ai_assert(expression) (void)((!!(expression)) || (Assimp::aiAssertViolation(#expression, __FILE__, __LINE__), 0))
+# define ai_assert_entry() ai_assert(false)
+#else
+# define ai_assert(expression)
+# define ai_assert_entry()
+#endif // ASSIMP_BUILD_DEBUG
+
+#endif // AI_ASSERT_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/anim.h b/src/mesh/assimp-master/include/assimp/anim.h
new file mode 100644
index 0000000..ef56c1d
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/anim.h
@@ -0,0 +1,554 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/**
+ * @file anim.h
+ * @brief Defines the data structures in which the imported animations
+ * are returned.
+ */
+#pragma once
+#ifndef AI_ANIM_H_INC
+#define AI_ANIM_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/quaternion.h>
+#include <assimp/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------------
+/** A time-value pair specifying a certain 3D vector for the given time. */
+struct aiVectorKey {
+ /** The time of this key */
+ double mTime;
+
+ /** The value of this key */
+ C_STRUCT aiVector3D mValue;
+
+#ifdef __cplusplus
+
+ /// @brief The default constructor.
+ aiVectorKey() AI_NO_EXCEPT
+ : mTime(0.0),
+ mValue() {
+ // empty
+ }
+
+ /// @brief Construction from a given time and key value.
+
+ aiVectorKey(double time, const aiVector3D &value) :
+ mTime(time), mValue(value) {
+ // empty
+ }
+
+ typedef aiVector3D elem_type;
+
+ // Comparison operators. For use with std::find();
+ bool operator==(const aiVectorKey &rhs) const {
+ return rhs.mValue == this->mValue;
+ }
+ bool operator!=(const aiVectorKey &rhs) const {
+ return rhs.mValue != this->mValue;
+ }
+
+ // Relational operators. For use with std::sort();
+ bool operator<(const aiVectorKey &rhs) const {
+ return mTime < rhs.mTime;
+ }
+
+ bool operator>(const aiVectorKey &rhs) const {
+ return mTime > rhs.mTime;
+ }
+#endif // __cplusplus
+};
+
+// ---------------------------------------------------------------------------
+/** A time-value pair specifying a rotation for the given time.
+ * Rotations are expressed with quaternions. */
+struct aiQuatKey {
+ /** The time of this key */
+ double mTime;
+
+ /** The value of this key */
+ C_STRUCT aiQuaternion mValue;
+
+#ifdef __cplusplus
+ aiQuatKey() AI_NO_EXCEPT
+ : mTime(0.0),
+ mValue() {
+ // empty
+ }
+
+ /** Construction from a given time and key value */
+ aiQuatKey(double time, const aiQuaternion &value) :
+ mTime(time), mValue(value) {}
+
+ typedef aiQuaternion elem_type;
+
+ // Comparison operators. For use with std::find();
+ bool operator==(const aiQuatKey &rhs) const {
+ return rhs.mValue == this->mValue;
+ }
+
+ bool operator!=(const aiQuatKey &rhs) const {
+ return rhs.mValue != this->mValue;
+ }
+
+ // Relational operators. For use with std::sort();
+ bool operator<(const aiQuatKey &rhs) const {
+ return mTime < rhs.mTime;
+ }
+
+ bool operator>(const aiQuatKey &rhs) const {
+ return mTime > rhs.mTime;
+ }
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** Binds a anim-mesh to a specific point in time. */
+struct aiMeshKey {
+ /** The time of this key */
+ double mTime;
+
+ /** Index into the aiMesh::mAnimMeshes array of the
+ * mesh corresponding to the #aiMeshAnim hosting this
+ * key frame. The referenced anim mesh is evaluated
+ * according to the rules defined in the docs for #aiAnimMesh.*/
+ unsigned int mValue;
+
+#ifdef __cplusplus
+
+ aiMeshKey() AI_NO_EXCEPT
+ : mTime(0.0),
+ mValue(0) {
+ }
+
+ /** Construction from a given time and key value */
+ aiMeshKey(double time, const unsigned int value) :
+ mTime(time), mValue(value) {}
+
+ typedef unsigned int elem_type;
+
+ // Comparison operators. For use with std::find();
+ bool operator==(const aiMeshKey &o) const {
+ return o.mValue == this->mValue;
+ }
+ bool operator!=(const aiMeshKey &o) const {
+ return o.mValue != this->mValue;
+ }
+
+ // Relational operators. For use with std::sort();
+ bool operator<(const aiMeshKey &o) const {
+ return mTime < o.mTime;
+ }
+ bool operator>(const aiMeshKey &o) const {
+ return mTime > o.mTime;
+ }
+
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** Binds a morph anim mesh to a specific point in time. */
+struct aiMeshMorphKey {
+ /** The time of this key */
+ double mTime;
+
+ /** The values and weights at the time of this key */
+ unsigned int *mValues;
+ double *mWeights;
+
+ /** The number of values and weights */
+ unsigned int mNumValuesAndWeights;
+#ifdef __cplusplus
+ aiMeshMorphKey() AI_NO_EXCEPT
+ : mTime(0.0),
+ mValues(nullptr),
+ mWeights(nullptr),
+ mNumValuesAndWeights(0) {
+ }
+
+ ~aiMeshMorphKey() {
+ if (mNumValuesAndWeights && mValues && mWeights) {
+ delete[] mValues;
+ delete[] mWeights;
+ }
+ }
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** Defines how an animation channel behaves outside the defined time
+ * range. This corresponds to aiNodeAnim::mPreState and
+ * aiNodeAnim::mPostState.*/
+enum aiAnimBehaviour {
+ /** The value from the default node transformation is taken*/
+ aiAnimBehaviour_DEFAULT = 0x0,
+
+ /** The nearest key value is used without interpolation */
+ aiAnimBehaviour_CONSTANT = 0x1,
+
+ /** The value of the nearest two keys is linearly
+ * extrapolated for the current time value.*/
+ aiAnimBehaviour_LINEAR = 0x2,
+
+ /** The animation is repeated.
+ *
+ * If the animation key go from n to m and the current
+ * time is t, use the value at (t-n) % (|m-n|).*/
+ aiAnimBehaviour_REPEAT = 0x3,
+
+/** This value is not used, it is just here to force the
+ * the compiler to map this enum to a 32 Bit integer */
+#ifndef SWIG
+ _aiAnimBehaviour_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** Describes the animation of a single node. The name specifies the
+ * bone/node which is affected by this animation channel. The keyframes
+ * are given in three separate series of values, one each for position,
+ * rotation and scaling. The transformation matrix computed from these
+ * values replaces the node's original transformation matrix at a
+ * specific time.
+ * This means all keys are absolute and not relative to the bone default pose.
+ * The order in which the transformations are applied is
+ * - as usual - scaling, rotation, translation.
+ *
+ * @note All keys are returned in their correct, chronological order.
+ * Duplicate keys don't pass the validation step. Most likely there
+ * will be no negative time values, but they are not forbidden also ( so
+ * implementations need to cope with them! ) */
+struct aiNodeAnim {
+ /** The name of the node affected by this animation. The node
+ * must exist and it must be unique.*/
+ C_STRUCT aiString mNodeName;
+
+ /** The number of position keys */
+ unsigned int mNumPositionKeys;
+
+ /** The position keys of this animation channel. Positions are
+ * specified as 3D vector. The array is mNumPositionKeys in size.
+ *
+ * If there are position keys, there will also be at least one
+ * scaling and one rotation key.*/
+ C_STRUCT aiVectorKey *mPositionKeys;
+
+ /** The number of rotation keys */
+ unsigned int mNumRotationKeys;
+
+ /** The rotation keys of this animation channel. Rotations are
+ * given as quaternions, which are 4D vectors. The array is
+ * mNumRotationKeys in size.
+ *
+ * If there are rotation keys, there will also be at least one
+ * scaling and one position key. */
+ C_STRUCT aiQuatKey *mRotationKeys;
+
+ /** The number of scaling keys */
+ unsigned int mNumScalingKeys;
+
+ /** The scaling keys of this animation channel. Scalings are
+ * specified as 3D vector. The array is mNumScalingKeys in size.
+ *
+ * If there are scaling keys, there will also be at least one
+ * position and one rotation key.*/
+ C_STRUCT aiVectorKey *mScalingKeys;
+
+ /** Defines how the animation behaves before the first
+ * key is encountered.
+ *
+ * The default value is aiAnimBehaviour_DEFAULT (the original
+ * transformation matrix of the affected node is used).*/
+ C_ENUM aiAnimBehaviour mPreState;
+
+ /** Defines how the animation behaves after the last
+ * key was processed.
+ *
+ * The default value is aiAnimBehaviour_DEFAULT (the original
+ * transformation matrix of the affected node is taken).*/
+ C_ENUM aiAnimBehaviour mPostState;
+
+#ifdef __cplusplus
+ aiNodeAnim() AI_NO_EXCEPT
+ : mNumPositionKeys(0),
+ mPositionKeys(nullptr),
+ mNumRotationKeys(0),
+ mRotationKeys(nullptr),
+ mNumScalingKeys(0),
+ mScalingKeys(nullptr),
+ mPreState(aiAnimBehaviour_DEFAULT),
+ mPostState(aiAnimBehaviour_DEFAULT) {
+ // empty
+ }
+
+ ~aiNodeAnim() {
+ delete[] mPositionKeys;
+ delete[] mRotationKeys;
+ delete[] mScalingKeys;
+ }
+#endif // __cplusplus
+};
+
+// ---------------------------------------------------------------------------
+/** Describes vertex-based animations for a single mesh or a group of
+ * meshes. Meshes carry the animation data for each frame in their
+ * aiMesh::mAnimMeshes array. The purpose of aiMeshAnim is to
+ * define keyframes linking each mesh attachment to a particular
+ * point in time. */
+struct aiMeshAnim {
+ /** Name of the mesh to be animated. An empty string is not allowed,
+ * animated meshes need to be named (not necessarily uniquely,
+ * the name can basically serve as wild-card to select a group
+ * of meshes with similar animation setup)*/
+ C_STRUCT aiString mName;
+
+ /** Size of the #mKeys array. Must be 1, at least. */
+ unsigned int mNumKeys;
+
+ /** Key frames of the animation. May not be nullptr. */
+ C_STRUCT aiMeshKey *mKeys;
+
+#ifdef __cplusplus
+
+ aiMeshAnim() AI_NO_EXCEPT
+ : mNumKeys(),
+ mKeys() {}
+
+ ~aiMeshAnim() {
+ delete[] mKeys;
+ }
+
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** Describes a morphing animation of a given mesh. */
+struct aiMeshMorphAnim {
+ /** Name of the mesh to be animated. An empty string is not allowed,
+ * animated meshes need to be named (not necessarily uniquely,
+ * the name can basically serve as wildcard to select a group
+ * of meshes with similar animation setup)*/
+ C_STRUCT aiString mName;
+
+ /** Size of the #mKeys array. Must be 1, at least. */
+ unsigned int mNumKeys;
+
+ /** Key frames of the animation. May not be nullptr. */
+ C_STRUCT aiMeshMorphKey *mKeys;
+
+#ifdef __cplusplus
+
+ aiMeshMorphAnim() AI_NO_EXCEPT
+ : mNumKeys(),
+ mKeys() {}
+
+ ~aiMeshMorphAnim() {
+ delete[] mKeys;
+ }
+
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** An animation consists of key-frame data for a number of nodes. For
+ * each node affected by the animation a separate series of data is given.*/
+struct aiAnimation {
+ /** The name of the animation. If the modeling package this data was
+ * exported from does support only a single animation channel, this
+ * name is usually empty (length is zero). */
+ C_STRUCT aiString mName;
+
+ /** Duration of the animation in ticks. */
+ double mDuration;
+
+ /** Ticks per second. 0 if not specified in the imported file */
+ double mTicksPerSecond;
+
+ /** The number of bone animation channels. Each channel affects
+ * a single node. */
+ unsigned int mNumChannels;
+
+ /** The node animation channels. Each channel affects a single node.
+ * The array is mNumChannels in size. */
+ C_STRUCT aiNodeAnim **mChannels;
+
+ /** The number of mesh animation channels. Each channel affects
+ * a single mesh and defines vertex-based animation. */
+ unsigned int mNumMeshChannels;
+
+ /** The mesh animation channels. Each channel affects a single mesh.
+ * The array is mNumMeshChannels in size. */
+ C_STRUCT aiMeshAnim **mMeshChannels;
+
+ /** The number of mesh animation channels. Each channel affects
+ * a single mesh and defines morphing animation. */
+ unsigned int mNumMorphMeshChannels;
+
+ /** The morph mesh animation channels. Each channel affects a single mesh.
+ * The array is mNumMorphMeshChannels in size. */
+ C_STRUCT aiMeshMorphAnim **mMorphMeshChannels;
+
+#ifdef __cplusplus
+ aiAnimation() AI_NO_EXCEPT
+ : mDuration(-1.),
+ mTicksPerSecond(0.),
+ mNumChannels(0),
+ mChannels(nullptr),
+ mNumMeshChannels(0),
+ mMeshChannels(nullptr),
+ mNumMorphMeshChannels(0),
+ mMorphMeshChannels(nullptr) {
+ // empty
+ }
+
+ ~aiAnimation() {
+ // DO NOT REMOVE THIS ADDITIONAL CHECK
+ if (mNumChannels && mChannels) {
+ for (unsigned int a = 0; a < mNumChannels; a++) {
+ delete mChannels[a];
+ }
+
+ delete[] mChannels;
+ }
+ if (mNumMeshChannels && mMeshChannels) {
+ for (unsigned int a = 0; a < mNumMeshChannels; a++) {
+ delete mMeshChannels[a];
+ }
+
+ delete[] mMeshChannels;
+ }
+ if (mNumMorphMeshChannels && mMorphMeshChannels) {
+ for (unsigned int a = 0; a < mNumMorphMeshChannels; a++) {
+ delete mMorphMeshChannels[a];
+ }
+
+ delete[] mMorphMeshChannels;
+ }
+ }
+#endif // __cplusplus
+};
+
+#ifdef __cplusplus
+}
+
+/// @brief Some C++ utilities for inter- and extrapolation
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/**
+ * @brief CPP-API: Utility class to simplify interpolations of various data types.
+ *
+ * The type of interpolation is chosen automatically depending on the
+ * types of the arguments.
+ */
+template <typename T>
+struct Interpolator {
+ // ------------------------------------------------------------------
+ /** @brief Get the result of the interpolation between a,b.
+ *
+ * The interpolation algorithm depends on the type of the operands.
+ * aiQuaternion's and aiQuatKey's SLERP, the rest does a simple
+ * linear interpolation. */
+ void operator()(T &anim_out, const T &a, const T &b, ai_real d) const {
+ anim_out = a + (b - a) * d;
+ }
+}; // ! Interpolator <T>
+
+//! @cond Never
+
+template <>
+struct Interpolator<aiQuaternion> {
+ void operator()(aiQuaternion &out, const aiQuaternion &a,
+ const aiQuaternion &b, ai_real d) const {
+ aiQuaternion::Interpolate(out, a, b, d);
+ }
+}; // ! Interpolator <aiQuaternion>
+
+template <>
+struct Interpolator<unsigned int> {
+ void operator()(unsigned int &out, unsigned int a,
+ unsigned int b, ai_real d) const {
+ out = d > 0.5f ? b : a;
+ }
+}; // ! Interpolator <aiQuaternion>
+
+template <>
+struct Interpolator<aiVectorKey> {
+ void operator()(aiVector3D &out, const aiVectorKey &a,
+ const aiVectorKey &b, ai_real d) const {
+ Interpolator<aiVector3D> ipl;
+ ipl(out, a.mValue, b.mValue, d);
+ }
+}; // ! Interpolator <aiVectorKey>
+
+template <>
+struct Interpolator<aiQuatKey> {
+ void operator()(aiQuaternion &out, const aiQuatKey &a,
+ const aiQuatKey &b, ai_real d) const {
+ Interpolator<aiQuaternion> ipl;
+ ipl(out, a.mValue, b.mValue, d);
+ }
+}; // ! Interpolator <aiQuatKey>
+
+template <>
+struct Interpolator<aiMeshKey> {
+ void operator()(unsigned int &out, const aiMeshKey &a,
+ const aiMeshKey &b, ai_real d) const {
+ Interpolator<unsigned int> ipl;
+ ipl(out, a.mValue, b.mValue, d);
+ }
+}; // ! Interpolator <aiQuatKey>
+
+//! @endcond
+
+} // namespace Assimp
+
+#endif // __cplusplus
+
+#endif // AI_ANIM_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/camera.h b/src/mesh/assimp-master/include/assimp/camera.h
new file mode 100644
index 0000000..09255fa
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/camera.h
@@ -0,0 +1,234 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file camera.h
+ * @brief Defines the aiCamera data structure
+ */
+
+#pragma once
+#ifndef AI_CAMERA_H_INC
+#define AI_CAMERA_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include "types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------------
+/** Helper structure to describe a virtual camera.
+ *
+ * Cameras have a representation in the node graph and can be animated.
+ * An important aspect is that the camera itself is also part of the
+ * scene-graph. This means, any values such as the look-at vector are not
+ * *absolute*, they're <b>relative</b> to the coordinate system defined
+ * by the node which corresponds to the camera. This allows for camera
+ * animations. For static cameras parameters like the 'look-at' or 'up' vectors
+ * are usually specified directly in aiCamera, but beware, they could also
+ * be encoded in the node transformation. The following (pseudo)code sample
+ * shows how to do it: <br><br>
+ * @code
+ * // Get the camera matrix for a camera at a specific time
+ * // if the node hierarchy for the camera does not contain
+ * // at least one animated node this is a static computation
+ * get-camera-matrix (node sceneRoot, camera cam) : matrix
+ * {
+ * node cnd = find-node-for-camera(cam)
+ * matrix cmt = identity()
+ *
+ * // as usual - get the absolute camera transformation for this frame
+ * for each node nd in hierarchy from sceneRoot to cnd
+ * matrix cur
+ * if (is-animated(nd))
+ * cur = eval-animation(nd)
+ * else cur = nd->mTransformation;
+ * cmt = mult-matrices( cmt, cur )
+ * end for
+ *
+ * // now multiply with the camera's own local transform
+ * cam = mult-matrices (cam, get-camera-matrix(cmt) )
+ * }
+ * @endcode
+ *
+ * @note some file formats (such as 3DS, ASE) export a "target point" -
+ * the point the camera is looking at (it can even be animated). Assimp
+ * writes the target point as a subnode of the camera's main node,
+ * called "<camName>.Target". However this is just additional information
+ * then the transformation tracks of the camera main node make the
+ * camera already look in the right direction.
+ *
+*/
+struct aiCamera {
+ /** The name of the camera.
+ *
+ * There must be a node in the scenegraph with the same name.
+ * This node specifies the position of the camera in the scene
+ * hierarchy and can be animated.
+ */
+ C_STRUCT aiString mName;
+
+ /** Position of the camera relative to the coordinate space
+ * defined by the corresponding node.
+ *
+ * The default value is 0|0|0.
+ */
+ C_STRUCT aiVector3D mPosition;
+
+ /** 'Up' - vector of the camera coordinate system relative to
+ * the coordinate space defined by the corresponding node.
+ *
+ * The 'right' vector of the camera coordinate system is
+ * the cross product of the up and lookAt vectors.
+ * The default value is 0|1|0. The vector
+ * may be normalized, but it needn't.
+ */
+ C_STRUCT aiVector3D mUp;
+
+ /** 'LookAt' - vector of the camera coordinate system relative to
+ * the coordinate space defined by the corresponding node.
+ *
+ * This is the viewing direction of the user.
+ * The default value is 0|0|1. The vector
+ * may be normalized, but it needn't.
+ */
+ C_STRUCT aiVector3D mLookAt;
+
+ /** Horizontal field of view angle, in radians.
+ *
+ * The field of view angle is the angle between the center
+ * line of the screen and the left or right border.
+ * The default value is 1/4PI.
+ */
+ float mHorizontalFOV;
+
+ /** Distance of the near clipping plane from the camera.
+ *
+ * The value may not be 0.f (for arithmetic reasons to prevent
+ * a division through zero). The default value is 0.1f.
+ */
+ float mClipPlaneNear;
+
+ /** Distance of the far clipping plane from the camera.
+ *
+ * The far clipping plane must, of course, be further away than the
+ * near clipping plane. The default value is 1000.f. The ratio
+ * between the near and the far plane should not be too
+ * large (between 1000-10000 should be ok) to avoid floating-point
+ * inaccuracies which could lead to z-fighting.
+ */
+ float mClipPlaneFar;
+
+ /** Screen aspect ratio.
+ *
+ * This is the ration between the width and the height of the
+ * screen. Typical values are 4/3, 1/2 or 1/1. This value is
+ * 0 if the aspect ratio is not defined in the source file.
+ * 0 is also the default value.
+ */
+ float mAspect;
+
+ /** Half horizontal orthographic width, in scene units.
+ *
+ * The orthographic width specifies the half width of the
+ * orthographic view box. If non-zero the camera is
+ * orthographic and the mAspect should define to the
+ * ratio between the orthographic width and height
+ * and mHorizontalFOV should be set to 0.
+ * The default value is 0 (not orthographic).
+ */
+ float mOrthographicWidth;
+#ifdef __cplusplus
+
+ aiCamera() AI_NO_EXCEPT
+ : mUp(0.f, 1.f, 0.f),
+ mLookAt(0.f, 0.f, 1.f),
+ mHorizontalFOV(0.25f * (float)AI_MATH_PI),
+ mClipPlaneNear(0.1f),
+ mClipPlaneFar(1000.f),
+ mAspect(0.f),
+ mOrthographicWidth(0.f) {}
+
+ /** @brief Get a *right-handed* camera matrix from me
+ * @param out Camera matrix to be filled
+ */
+ void GetCameraMatrix(aiMatrix4x4 &out) const {
+ /** todo: test ... should work, but i'm not absolutely sure */
+
+ /** We don't know whether these vectors are already normalized ...*/
+ aiVector3D zaxis = mLookAt;
+ zaxis.Normalize();
+ aiVector3D yaxis = mUp;
+ yaxis.Normalize();
+ aiVector3D xaxis = mUp ^ mLookAt;
+ xaxis.Normalize();
+
+ out.a4 = -(xaxis * mPosition);
+ out.b4 = -(yaxis * mPosition);
+ out.c4 = -(zaxis * mPosition);
+
+ out.a1 = xaxis.x;
+ out.a2 = xaxis.y;
+ out.a3 = xaxis.z;
+
+ out.b1 = yaxis.x;
+ out.b2 = yaxis.y;
+ out.b3 = yaxis.z;
+
+ out.c1 = zaxis.x;
+ out.c2 = zaxis.y;
+ out.c3 = zaxis.z;
+
+ out.d1 = out.d2 = out.d3 = 0.f;
+ out.d4 = 1.f;
+ }
+
+#endif
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // AI_CAMERA_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/cexport.h b/src/mesh/assimp-master/include/assimp/cexport.h
new file mode 100644
index 0000000..a45ece3
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/cexport.h
@@ -0,0 +1,273 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file cexport.h
+* @brief Defines the C-API for the Assimp export interface
+*/
+#pragma once
+#ifndef AI_EXPORT_H_INC
+#define AI_EXPORT_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+#include <assimp/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct aiScene;
+struct aiFileIO;
+
+// --------------------------------------------------------------------------------
+/**
+ * @brief Describes an file format which Assimp can export to.
+ *
+ * Use #aiGetExportFormatCount() to learn how many export-formats are supported by
+ * the current Assimp-build and #aiGetExportFormatDescription() to retrieve the
+ * description of the export format option.
+ */
+struct aiExportFormatDesc {
+ /// a short string ID to uniquely identify the export format. Use this ID string to
+ /// specify which file format you want to export to when calling #aiExportScene().
+ /// Example: "dae" or "obj"
+ const char *id;
+
+ /// A short description of the file format to present to users. Useful if you want
+ /// to allow the user to select an export format.
+ const char *description;
+
+ /// Recommended file extension for the exported file in lower case.
+ const char *fileExtension;
+};
+
+// --------------------------------------------------------------------------------
+/** Returns the number of export file formats available in the current Assimp build.
+ * Use aiGetExportFormatDescription() to retrieve infos of a specific export format.
+ */
+ASSIMP_API size_t aiGetExportFormatCount(void);
+
+// --------------------------------------------------------------------------------
+/** Returns a description of the nth export file format. Use #aiGetExportFormatCount()
+ * to learn how many export formats are supported. The description must be released by
+ * calling aiReleaseExportFormatDescription afterwards.
+ * @param pIndex Index of the export format to retrieve information for. Valid range is
+ * 0 to #aiGetExportFormatCount()
+ * @return A description of that specific export format. NULL if pIndex is out of range.
+ */
+ASSIMP_API const C_STRUCT aiExportFormatDesc *aiGetExportFormatDescription(size_t pIndex);
+
+// --------------------------------------------------------------------------------
+/** Release a description of the nth export file format. Must be returned by
+* aiGetExportFormatDescription
+* @param desc Pointer to the description
+*/
+ASSIMP_API void aiReleaseExportFormatDescription(const C_STRUCT aiExportFormatDesc *desc);
+
+// --------------------------------------------------------------------------------
+/** Create a modifiable copy of a scene.
+ * This is useful to import files via Assimp, change their topology and
+ * export them again. Since the scene returned by the various importer functions
+ * is const, a modifiable copy is needed.
+ * @param pIn Valid scene to be copied
+ * @param pOut Receives a modifiable copy of the scene. Use aiFreeScene() to
+ * delete it again.
+ */
+ASSIMP_API void aiCopyScene(const C_STRUCT aiScene *pIn,
+ C_STRUCT aiScene **pOut);
+
+// --------------------------------------------------------------------------------
+/** Frees a scene copy created using aiCopyScene() */
+ASSIMP_API void aiFreeScene(const C_STRUCT aiScene *pIn);
+
+// --------------------------------------------------------------------------------
+/** Exports the given scene to a chosen file format and writes the result file(s) to disk.
+* @param pScene The scene to export. Stays in possession of the caller, is not changed by the function.
+* The scene is expected to conform to Assimp's Importer output format as specified
+* in the @link data Data Structures Page @endlink. In short, this means the model data
+* should use a right-handed coordinate systems, face winding should be counter-clockwise
+* and the UV coordinate origin is assumed to be in the upper left. If your input data
+* uses different conventions, have a look at the last parameter.
+* @param pFormatId ID string to specify to which format you want to export to. Use
+* aiGetExportFormatCount() / aiGetExportFormatDescription() to learn which export formats are available.
+* @param pFileName Output file to write
+* @param pPreprocessing Accepts any choice of the #aiPostProcessSteps enumerated
+* flags, but in reality only a subset of them makes sense here. Specifying
+* 'preprocessing' flags is useful if the input scene does not conform to
+* Assimp's default conventions as specified in the @link data Data Structures Page @endlink.
+* In short, this means the geometry data should use a right-handed coordinate systems, face
+* winding should be counter-clockwise and the UV coordinate origin is assumed to be in
+* the upper left. The #aiProcess_MakeLeftHanded, #aiProcess_FlipUVs and
+* #aiProcess_FlipWindingOrder flags are used in the import side to allow users
+* to have those defaults automatically adapted to their conventions. Specifying those flags
+* for exporting has the opposite effect, respectively. Some other of the
+* #aiPostProcessSteps enumerated values may be useful as well, but you'll need
+* to try out what their effect on the exported file is. Many formats impose
+* their own restrictions on the structure of the geometry stored therein,
+* so some preprocessing may have little or no effect at all, or may be
+* redundant as exporters would apply them anyhow. A good example
+* is triangulation - whilst you can enforce it by specifying
+* the #aiProcess_Triangulate flag, most export formats support only
+* triangulate data so they would run the step anyway.
+*
+* If assimp detects that the input scene was directly taken from the importer side of
+* the library (i.e. not copied using aiCopyScene and potentially modified afterwards),
+* any post-processing steps already applied to the scene will not be applied again, unless
+* they show non-idempotent behavior (#aiProcess_MakeLeftHanded, #aiProcess_FlipUVs and
+* #aiProcess_FlipWindingOrder).
+* @return a status code indicating the result of the export
+* @note Use aiCopyScene() to get a modifiable copy of a previously
+* imported scene.
+*/
+ASSIMP_API aiReturn aiExportScene(const C_STRUCT aiScene *pScene,
+ const char *pFormatId,
+ const char *pFileName,
+ unsigned int pPreprocessing);
+
+// --------------------------------------------------------------------------------
+/** Exports the given scene to a chosen file format using custom IO logic supplied by you.
+* @param pScene The scene to export. Stays in possession of the caller, is not changed by the function.
+* @param pFormatId ID string to specify to which format you want to export to. Use
+* aiGetExportFormatCount() / aiGetExportFormatDescription() to learn which export formats are available.
+* @param pFileName Output file to write
+* @param pIO custom IO implementation to be used. Use this if you use your own storage methods.
+* If none is supplied, a default implementation using standard file IO is used. Note that
+* #aiExportSceneToBlob is provided as convenience function to export to memory buffers.
+* @param pPreprocessing Please see the documentation for #aiExportScene
+* @return a status code indicating the result of the export
+* @note Include <aiFileIO.h> for the definition of #aiFileIO.
+* @note Use aiCopyScene() to get a modifiable copy of a previously
+* imported scene.
+*/
+ASSIMP_API aiReturn aiExportSceneEx(const C_STRUCT aiScene *pScene,
+ const char *pFormatId,
+ const char *pFileName,
+ C_STRUCT aiFileIO *pIO,
+ unsigned int pPreprocessing);
+
+// --------------------------------------------------------------------------------
+/** Describes a blob of exported scene data. Use #aiExportSceneToBlob() to create a blob containing an
+* exported scene. The memory referred by this structure is owned by Assimp.
+* to free its resources. Don't try to free the memory on your side - it will crash for most build configurations
+* due to conflicting heaps.
+*
+* Blobs can be nested - each blob may reference another blob, which may in turn reference another blob and so on.
+* This is used when exporters write more than one output file for a given #aiScene. See the remarks for
+* #aiExportDataBlob::name for more information.
+*/
+struct aiExportDataBlob {
+ /// Size of the data in bytes
+ size_t size;
+
+ /// The data.
+ void *data;
+
+ /** Name of the blob. An empty string always
+ * indicates the first (and primary) blob,
+ * which contains the actual file data.
+ * Any other blobs are auxiliary files produced
+ * by exporters (i.e. material files). Existence
+ * of such files depends on the file format. Most
+ * formats don't split assets across multiple files.
+ *
+ * If used, blob names usually contain the file
+ * extension that should be used when writing
+ * the data to disc.
+ *
+ * The blob names generated can be influenced by
+ * setting the #AI_CONFIG_EXPORT_BLOB_NAME export
+ * property to the name that is used for the master
+ * blob. All other names are typically derived from
+ * the base name, by the file format exporter.
+ */
+ C_STRUCT aiString name;
+
+ /** Pointer to the next blob in the chain or NULL if there is none. */
+ C_STRUCT aiExportDataBlob *next;
+
+#ifdef __cplusplus
+ /// Default constructor
+ aiExportDataBlob() {
+ size = 0;
+ data = next = nullptr;
+ }
+ /// Releases the data
+ ~aiExportDataBlob() {
+ delete[] static_cast<unsigned char *>(data);
+ delete next;
+ }
+
+ aiExportDataBlob(const aiExportDataBlob &) = delete;
+ aiExportDataBlob &operator=(const aiExportDataBlob &) = delete;
+
+#endif // __cplusplus
+};
+
+// --------------------------------------------------------------------------------
+/** Exports the given scene to a chosen file format. Returns the exported data as a binary blob which
+* you can write into a file or something. When you're done with the data, use #aiReleaseExportBlob()
+* to free the resources associated with the export.
+* @param pScene The scene to export. Stays in possession of the caller, is not changed by the function.
+* @param pFormatId ID string to specify to which format you want to export to. Use
+* #aiGetExportFormatCount() / #aiGetExportFormatDescription() to learn which export formats are available.
+* @param pPreprocessing Please see the documentation for #aiExportScene
+* @return the exported data or NULL in case of error
+*/
+ASSIMP_API const C_STRUCT aiExportDataBlob *aiExportSceneToBlob(const C_STRUCT aiScene *pScene, const char *pFormatId,
+ unsigned int pPreprocessing);
+
+// --------------------------------------------------------------------------------
+/** Releases the memory associated with the given exported data. Use this function to free a data blob
+* returned by aiExportScene().
+* @param pData the data blob returned by #aiExportSceneToBlob
+*/
+ASSIMP_API void aiReleaseExportBlob(const C_STRUCT aiExportDataBlob *pData);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // ASSIMP_BUILD_NO_EXPORT
+#endif // AI_EXPORT_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/cfileio.h b/src/mesh/assimp-master/include/assimp/cfileio.h
new file mode 100644
index 0000000..fc1b95a
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/cfileio.h
@@ -0,0 +1,141 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file cfileio.h
+ * @brief Defines generic C routines to access memory-mapped files
+ */
+#pragma once
+#ifndef AI_FILEIO_H_INC
+#define AI_FILEIO_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct aiFileIO;
+struct aiFile;
+
+// aiFile callbacks
+typedef size_t (*aiFileWriteProc) (C_STRUCT aiFile*, const char*, size_t, size_t);
+typedef size_t (*aiFileReadProc) (C_STRUCT aiFile*, char*, size_t,size_t);
+typedef size_t (*aiFileTellProc) (C_STRUCT aiFile*);
+typedef void (*aiFileFlushProc) (C_STRUCT aiFile*);
+typedef C_ENUM aiReturn (*aiFileSeek) (C_STRUCT aiFile*, size_t, C_ENUM aiOrigin);
+
+// aiFileIO callbacks
+typedef C_STRUCT aiFile* (*aiFileOpenProc) (C_STRUCT aiFileIO*, const char*, const char*);
+typedef void (*aiFileCloseProc) (C_STRUCT aiFileIO*, C_STRUCT aiFile*);
+
+// Represents user-defined data
+typedef char* aiUserData;
+
+// ----------------------------------------------------------------------------------
+/** @brief C-API: File system callbacks
+ *
+ * Provided are functions to open and close files. Supply a custom structure to
+ * the import function. If you don't, a default implementation is used. Use custom
+ * file systems to enable reading from other sources, such as ZIPs
+ * or memory locations. */
+struct aiFileIO
+{
+ /** Function used to open a new file
+ */
+ aiFileOpenProc OpenProc;
+
+ /** Function used to close an existing file
+ */
+ aiFileCloseProc CloseProc;
+
+ /** User-defined, opaque data */
+ aiUserData UserData;
+};
+
+// ----------------------------------------------------------------------------------
+/** @brief C-API: File callbacks
+ *
+ * Actually, it's a data structure to wrap a set of fXXXX (e.g fopen)
+ * replacement functions.
+ *
+ * The default implementation of the functions utilizes the fXXX functions from
+ * the CRT. However, you can supply a custom implementation to Assimp by
+ * delivering a custom aiFileIO. Use this to enable reading from other sources,
+ * such as ZIP archives or memory locations. */
+struct aiFile {
+ /** Callback to read from a file */
+ aiFileReadProc ReadProc;
+
+ /** Callback to write to a file */
+ aiFileWriteProc WriteProc;
+
+ /** Callback to retrieve the current position of
+ * the file cursor (ftell())
+ */
+ aiFileTellProc TellProc;
+
+ /** Callback to retrieve the size of the file,
+ * in bytes
+ */
+ aiFileTellProc FileSizeProc;
+
+ /** Callback to set the current position
+ * of the file cursor (fseek())
+ */
+ aiFileSeek SeekProc;
+
+ /** Callback to flush the file contents
+ */
+ aiFileFlushProc FlushProc;
+
+ /** User-defined, opaque data
+ */
+ aiUserData UserData;
+};
+
+#ifdef __cplusplus
+}
+#endif
+#endif // AI_FILEIO_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/cimport.h b/src/mesh/assimp-master/include/assimp/cimport.h
new file mode 100644
index 0000000..935ed18
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/cimport.h
@@ -0,0 +1,1235 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file cimport.h
+ * @brief Defines the C-API to the Open Asset Import Library.
+ */
+#pragma once
+#ifndef AI_ASSIMP_H_INC
+#define AI_ASSIMP_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/importerdesc.h>
+#include <assimp/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct aiScene;
+struct aiFileIO;
+
+typedef void (*aiLogStreamCallback)(const char * /* message */, char * /* user */);
+
+// --------------------------------------------------------------------------------
+/** C-API: Represents a log stream. A log stream receives all log messages and
+ * streams them _somewhere_.
+ * @see aiGetPredefinedLogStream
+ * @see aiAttachLogStream
+ * @see aiDetachLogStream */
+// --------------------------------------------------------------------------------
+struct aiLogStream {
+ /** callback to be called */
+ aiLogStreamCallback callback;
+
+ /** user data to be passed to the callback */
+ char *user;
+};
+
+// --------------------------------------------------------------------------------
+/** C-API: Represents an opaque set of settings to be used during importing.
+ * @see aiCreatePropertyStore
+ * @see aiReleasePropertyStore
+ * @see aiImportFileExWithProperties
+ * @see aiSetPropertyInteger
+ * @see aiSetPropertyFloat
+ * @see aiSetPropertyString
+ * @see aiSetPropertyMatrix
+ */
+// --------------------------------------------------------------------------------
+struct aiPropertyStore {
+ char sentinel;
+};
+
+/** Our own C boolean type */
+typedef int aiBool;
+
+#define AI_FALSE 0
+#define AI_TRUE 1
+
+// --------------------------------------------------------------------------------
+/** Reads the given file and returns its content.
+ *
+ * If the call succeeds, the imported data is returned in an aiScene structure.
+ * The data is intended to be read-only, it stays property of the ASSIMP
+ * library and will be stable until aiReleaseImport() is called. After you're
+ * done with it, call aiReleaseImport() to free the resources associated with
+ * this file. If the import fails, NULL is returned instead. Call
+ * aiGetErrorString() to retrieve a human-readable error text.
+ * @param pFile Path and filename of the file to be imported,
+ * expected to be a null-terminated c-string. NULL is not a valid value.
+ * @param pFlags Optional post processing steps to be executed after
+ * a successful import. Provide a bitwise combination of the
+ * #aiPostProcessSteps flags.
+ * @return Pointer to the imported data or NULL if the import failed.
+ */
+ASSIMP_API const C_STRUCT aiScene *aiImportFile(
+ const char *pFile,
+ unsigned int pFlags);
+
+// --------------------------------------------------------------------------------
+/** Reads the given file using user-defined I/O functions and returns
+ * its content.
+ *
+ * If the call succeeds, the imported data is returned in an aiScene structure.
+ * The data is intended to be read-only, it stays property of the ASSIMP
+ * library and will be stable until aiReleaseImport() is called. After you're
+ * done with it, call aiReleaseImport() to free the resources associated with
+ * this file. If the import fails, NULL is returned instead. Call
+ * aiGetErrorString() to retrieve a human-readable error text.
+ * @param pFile Path and filename of the file to be imported,
+ * expected to be a null-terminated c-string. NULL is not a valid value.
+ * @param pFlags Optional post processing steps to be executed after
+ * a successful import. Provide a bitwise combination of the
+ * #aiPostProcessSteps flags.
+ * @param pFS aiFileIO structure. Will be used to open the model file itself
+ * and any other files the loader needs to open. Pass NULL to use the default
+ * implementation.
+ * @return Pointer to the imported data or NULL if the import failed.
+ * @note Include <aiFileIO.h> for the definition of #aiFileIO.
+ */
+ASSIMP_API const C_STRUCT aiScene *aiImportFileEx(
+ const char *pFile,
+ unsigned int pFlags,
+ C_STRUCT aiFileIO *pFS);
+
+// --------------------------------------------------------------------------------
+/** Same as #aiImportFileEx, but adds an extra parameter containing importer settings.
+ *
+ * @param pFile Path and filename of the file to be imported,
+ * expected to be a null-terminated c-string. NULL is not a valid value.
+ * @param pFlags Optional post processing steps to be executed after
+ * a successful import. Provide a bitwise combination of the
+ * #aiPostProcessSteps flags.
+ * @param pFS aiFileIO structure. Will be used to open the model file itself
+ * and any other files the loader needs to open. Pass NULL to use the default
+ * implementation.
+ * @param pProps #aiPropertyStore instance containing import settings.
+ * @return Pointer to the imported data or NULL if the import failed.
+ * @note Include <aiFileIO.h> for the definition of #aiFileIO.
+ * @see aiImportFileEx
+ */
+ASSIMP_API const C_STRUCT aiScene *aiImportFileExWithProperties(
+ const char *pFile,
+ unsigned int pFlags,
+ C_STRUCT aiFileIO *pFS,
+ const C_STRUCT aiPropertyStore *pProps);
+
+// --------------------------------------------------------------------------------
+/** Reads the given file from a given memory buffer,
+ *
+ * If the call succeeds, the contents of the file are returned as a pointer to an
+ * aiScene object. The returned data is intended to be read-only, the importer keeps
+ * ownership of the data and will destroy it upon destruction. If the import fails,
+ * NULL is returned.
+ * A human-readable error description can be retrieved by calling aiGetErrorString().
+ * @param pBuffer Pointer to the file data
+ * @param pLength Length of pBuffer, in bytes
+ * @param pFlags Optional post processing steps to be executed after
+ * a successful import. Provide a bitwise combination of the
+ * #aiPostProcessSteps flags. If you wish to inspect the imported
+ * scene first in order to fine-tune your post-processing setup,
+ * consider to use #aiApplyPostProcessing().
+ * @param pHint An additional hint to the library. If this is a non empty string,
+ * the library looks for a loader to support the file extension specified by pHint
+ * and passes the file to the first matching loader. If this loader is unable to
+ * completely the request, the library continues and tries to determine the file
+ * format on its own, a task that may or may not be successful.
+ * Check the return value, and you'll know ...
+ * @return A pointer to the imported data, NULL if the import failed.
+ *
+ * @note This is a straightforward way to decode models from memory
+ * buffers, but it doesn't handle model formats that spread their
+ * data across multiple files or even directories. Examples include
+ * OBJ or MD3, which outsource parts of their material info into
+ * external scripts. If you need full functionality, provide
+ * a custom IOSystem to make Assimp find these files and use
+ * the regular aiImportFileEx()/aiImportFileExWithProperties() API.
+ */
+ASSIMP_API const C_STRUCT aiScene *aiImportFileFromMemory(
+ const char *pBuffer,
+ unsigned int pLength,
+ unsigned int pFlags,
+ const char *pHint);
+
+// --------------------------------------------------------------------------------
+/** Same as #aiImportFileFromMemory, but adds an extra parameter containing importer settings.
+ *
+ * @param pBuffer Pointer to the file data
+ * @param pLength Length of pBuffer, in bytes
+ * @param pFlags Optional post processing steps to be executed after
+ * a successful import. Provide a bitwise combination of the
+ * #aiPostProcessSteps flags. If you wish to inspect the imported
+ * scene first in order to fine-tune your post-processing setup,
+ * consider to use #aiApplyPostProcessing().
+ * @param pHint An additional hint to the library. If this is a non empty string,
+ * the library looks for a loader to support the file extension specified by pHint
+ * and passes the file to the first matching loader. If this loader is unable to
+ * completely the request, the library continues and tries to determine the file
+ * format on its own, a task that may or may not be successful.
+ * Check the return value, and you'll know ...
+ * @param pProps #aiPropertyStore instance containing import settings.
+ * @return A pointer to the imported data, NULL if the import failed.
+ *
+ * @note This is a straightforward way to decode models from memory
+ * buffers, but it doesn't handle model formats that spread their
+ * data across multiple files or even directories. Examples include
+ * OBJ or MD3, which outsource parts of their material info into
+ * external scripts. If you need full functionality, provide
+ * a custom IOSystem to make Assimp find these files and use
+ * the regular aiImportFileEx()/aiImportFileExWithProperties() API.
+ * @see aiImportFileFromMemory
+ */
+ASSIMP_API const C_STRUCT aiScene *aiImportFileFromMemoryWithProperties(
+ const char *pBuffer,
+ unsigned int pLength,
+ unsigned int pFlags,
+ const char *pHint,
+ const C_STRUCT aiPropertyStore *pProps);
+
+// --------------------------------------------------------------------------------
+/** Apply post-processing to an already-imported scene.
+ *
+ * This is strictly equivalent to calling #aiImportFile()/#aiImportFileEx with the
+ * same flags. However, you can use this separate function to inspect the imported
+ * scene first to fine-tune your post-processing setup.
+ * @param pScene Scene to work on.
+ * @param pFlags Provide a bitwise combination of the #aiPostProcessSteps flags.
+ * @return A pointer to the post-processed data. Post processing is done in-place,
+ * meaning this is still the same #aiScene which you passed for pScene. However,
+ * _if_ post-processing failed, the scene could now be NULL. That's quite a rare
+ * case, post processing steps are not really designed to 'fail'. To be exact,
+ * the #aiProcess_ValidateDataStructure flag is currently the only post processing step
+ * which can actually cause the scene to be reset to NULL.
+ */
+ASSIMP_API const C_STRUCT aiScene *aiApplyPostProcessing(
+ const C_STRUCT aiScene *pScene,
+ unsigned int pFlags);
+
+// --------------------------------------------------------------------------------
+/** Get one of the predefine log streams. This is the quick'n'easy solution to
+ * access Assimp's log system. Attaching a log stream can slightly reduce Assimp's
+ * overall import performance.
+ *
+ * Usage is rather simple (this will stream the log to a file, named log.txt, and
+ * the stdout stream of the process:
+ * @code
+ * struct aiLogStream c;
+ * c = aiGetPredefinedLogStream(aiDefaultLogStream_FILE,"log.txt");
+ * aiAttachLogStream(&c);
+ * c = aiGetPredefinedLogStream(aiDefaultLogStream_STDOUT,NULL);
+ * aiAttachLogStream(&c);
+ * @endcode
+ *
+ * @param pStreams One of the #aiDefaultLogStream enumerated values.
+ * @param file Solely for the #aiDefaultLogStream_FILE flag: specifies the file to write to.
+ * Pass NULL for all other flags.
+ * @return The log stream. callback is set to NULL if something went wrong.
+ */
+ASSIMP_API C_STRUCT aiLogStream aiGetPredefinedLogStream(
+ C_ENUM aiDefaultLogStream pStreams,
+ const char *file);
+
+// --------------------------------------------------------------------------------
+/** Attach a custom log stream to the libraries' logging system.
+ *
+ * Attaching a log stream can slightly reduce Assimp's overall import
+ * performance. Multiple log-streams can be attached.
+ * @param stream Describes the new log stream.
+ * @note To ensure proper destruction of the logging system, you need to manually
+ * call aiDetachLogStream() on every single log stream you attach.
+ * Alternatively (for the lazy folks) #aiDetachAllLogStreams is provided.
+ */
+ASSIMP_API void aiAttachLogStream(
+ const C_STRUCT aiLogStream *stream);
+
+// --------------------------------------------------------------------------------
+/** Enable verbose logging. Verbose logging includes debug-related stuff and
+ * detailed import statistics. This can have severe impact on import performance
+ * and memory consumption. However, it might be useful to find out why a file
+ * didn't read correctly.
+ * @param d AI_TRUE or AI_FALSE, your decision.
+ */
+ASSIMP_API void aiEnableVerboseLogging(aiBool d);
+
+// --------------------------------------------------------------------------------
+/** Detach a custom log stream from the libraries' logging system.
+ *
+ * This is the counterpart of #aiAttachLogStream. If you attached a stream,
+ * don't forget to detach it again.
+ * @param stream The log stream to be detached.
+ * @return AI_SUCCESS if the log stream has been detached successfully.
+ * @see aiDetachAllLogStreams
+ */
+ASSIMP_API C_ENUM aiReturn aiDetachLogStream(
+ const C_STRUCT aiLogStream *stream);
+
+// --------------------------------------------------------------------------------
+/** Detach all active log streams from the libraries' logging system.
+ * This ensures that the logging system is terminated properly and all
+ * resources allocated by it are actually freed. If you attached a stream,
+ * don't forget to detach it again.
+ * @see aiAttachLogStream
+ * @see aiDetachLogStream
+ */
+ASSIMP_API void aiDetachAllLogStreams(void);
+
+// --------------------------------------------------------------------------------
+/** Releases all resources associated with the given import process.
+ *
+ * Call this function after you're done with the imported data.
+ * @param pScene The imported data to release. NULL is a valid value.
+ */
+ASSIMP_API void aiReleaseImport(
+ const C_STRUCT aiScene *pScene);
+
+// --------------------------------------------------------------------------------
+/** Returns the error text of the last failed import process.
+ *
+ * @return A textual description of the error that occurred at the last
+ * import process. NULL if there was no error. There can't be an error if you
+ * got a non-NULL #aiScene from #aiImportFile/#aiImportFileEx/#aiApplyPostProcessing.
+ */
+ASSIMP_API const char *aiGetErrorString(void);
+
+// --------------------------------------------------------------------------------
+/** Returns whether a given file extension is supported by ASSIMP
+ *
+ * @param szExtension Extension for which the function queries support for.
+ * Must include a leading dot '.'. Example: ".3ds", ".md3"
+ * @return AI_TRUE if the file extension is supported.
+ */
+ASSIMP_API aiBool aiIsExtensionSupported(
+ const char *szExtension);
+
+// --------------------------------------------------------------------------------
+/** Get a list of all file extensions supported by ASSIMP.
+ *
+ * If a file extension is contained in the list this does, of course, not
+ * mean that ASSIMP is able to load all files with this extension.
+ * @param szOut String to receive the extension list.
+ * Format of the list: "*.3ds;*.obj;*.dae". NULL is not a valid parameter.
+ */
+ASSIMP_API void aiGetExtensionList(
+ C_STRUCT aiString *szOut);
+
+// --------------------------------------------------------------------------------
+/** Get the approximated storage required by an imported asset
+ * @param pIn Input asset.
+ * @param in Data structure to be filled.
+ */
+ASSIMP_API void aiGetMemoryRequirements(
+ const C_STRUCT aiScene *pIn,
+ C_STRUCT aiMemoryInfo *in);
+
+// --------------------------------------------------------------------------------
+/** Create an empty property store. Property stores are used to collect import
+ * settings.
+ * @return New property store. Property stores need to be manually destroyed using
+ * the #aiReleasePropertyStore API function.
+ */
+ASSIMP_API C_STRUCT aiPropertyStore *aiCreatePropertyStore(void);
+
+// --------------------------------------------------------------------------------
+/** Delete a property store.
+ * @param p Property store to be deleted.
+ */
+ASSIMP_API void aiReleasePropertyStore(C_STRUCT aiPropertyStore *p);
+
+// --------------------------------------------------------------------------------
+/** Set an integer property.
+ *
+ * This is the C-version of #Assimp::Importer::SetPropertyInteger(). In the C
+ * interface, properties are always shared by all imports. It is not possible to
+ * specify them per import.
+ *
+ * @param store Store to modify. Use #aiCreatePropertyStore to obtain a store.
+ * @param szName Name of the configuration property to be set. All supported
+ * public properties are defined in the config.h header file (AI_CONFIG_XXX).
+ * @param value New value for the property
+ */
+ASSIMP_API void aiSetImportPropertyInteger(
+ C_STRUCT aiPropertyStore *store,
+ const char *szName,
+ int value);
+
+// --------------------------------------------------------------------------------
+/** Set a floating-point property.
+ *
+ * This is the C-version of #Assimp::Importer::SetPropertyFloat(). In the C
+ * interface, properties are always shared by all imports. It is not possible to
+ * specify them per import.
+ *
+ * @param store Store to modify. Use #aiCreatePropertyStore to obtain a store.
+ * @param szName Name of the configuration property to be set. All supported
+ * public properties are defined in the config.h header file (AI_CONFIG_XXX).
+ * @param value New value for the property
+ */
+ASSIMP_API void aiSetImportPropertyFloat(
+ C_STRUCT aiPropertyStore *store,
+ const char *szName,
+ ai_real value);
+
+// --------------------------------------------------------------------------------
+/** Set a string property.
+ *
+ * This is the C-version of #Assimp::Importer::SetPropertyString(). In the C
+ * interface, properties are always shared by all imports. It is not possible to
+ * specify them per import.
+ *
+ * @param store Store to modify. Use #aiCreatePropertyStore to obtain a store.
+ * @param szName Name of the configuration property to be set. All supported
+ * public properties are defined in the config.h header file (AI_CONFIG_XXX).
+ * @param st New value for the property
+ */
+ASSIMP_API void aiSetImportPropertyString(
+ C_STRUCT aiPropertyStore *store,
+ const char *szName,
+ const C_STRUCT aiString *st);
+
+// --------------------------------------------------------------------------------
+/** Set a matrix property.
+ *
+ * This is the C-version of #Assimp::Importer::SetPropertyMatrix(). In the C
+ * interface, properties are always shared by all imports. It is not possible to
+ * specify them per import.
+ *
+ * @param store Store to modify. Use #aiCreatePropertyStore to obtain a store.
+ * @param szName Name of the configuration property to be set. All supported
+ * public properties are defined in the config.h header file (AI_CONFIG_XXX).
+ * @param mat New value for the property
+ */
+ASSIMP_API void aiSetImportPropertyMatrix(
+ C_STRUCT aiPropertyStore *store,
+ const char *szName,
+ const C_STRUCT aiMatrix4x4 *mat);
+
+// --------------------------------------------------------------------------------
+/** Construct a quaternion from a 3x3 rotation matrix.
+ * @param quat Receives the output quaternion.
+ * @param mat Matrix to 'quaternionize'.
+ * @see aiQuaternion(const aiMatrix3x3& pRotMatrix)
+ */
+ASSIMP_API void aiCreateQuaternionFromMatrix(
+ C_STRUCT aiQuaternion *quat,
+ const C_STRUCT aiMatrix3x3 *mat);
+
+// --------------------------------------------------------------------------------
+/** Decompose a transformation matrix into its rotational, translational and
+ * scaling components.
+ *
+ * @param mat Matrix to decompose
+ * @param scaling Receives the scaling component
+ * @param rotation Receives the rotational component
+ * @param position Receives the translational component.
+ * @see aiMatrix4x4::Decompose (aiVector3D&, aiQuaternion&, aiVector3D&) const;
+ */
+ASSIMP_API void aiDecomposeMatrix(
+ const C_STRUCT aiMatrix4x4 *mat,
+ C_STRUCT aiVector3D *scaling,
+ C_STRUCT aiQuaternion *rotation,
+ C_STRUCT aiVector3D *position);
+
+// --------------------------------------------------------------------------------
+/** Transpose a 4x4 matrix.
+ * @param mat Pointer to the matrix to be transposed
+ */
+ASSIMP_API void aiTransposeMatrix4(
+ C_STRUCT aiMatrix4x4 *mat);
+
+// --------------------------------------------------------------------------------
+/** Transpose a 3x3 matrix.
+ * @param mat Pointer to the matrix to be transposed
+ */
+ASSIMP_API void aiTransposeMatrix3(
+ C_STRUCT aiMatrix3x3 *mat);
+
+// --------------------------------------------------------------------------------
+/** Transform a vector by a 3x3 matrix
+ * @param vec Vector to be transformed.
+ * @param mat Matrix to transform the vector with.
+ */
+ASSIMP_API void aiTransformVecByMatrix3(
+ C_STRUCT aiVector3D *vec,
+ const C_STRUCT aiMatrix3x3 *mat);
+
+// --------------------------------------------------------------------------------
+/** Transform a vector by a 4x4 matrix
+ * @param vec Vector to be transformed.
+ * @param mat Matrix to transform the vector with.
+ */
+ASSIMP_API void aiTransformVecByMatrix4(
+ C_STRUCT aiVector3D *vec,
+ const C_STRUCT aiMatrix4x4 *mat);
+
+// --------------------------------------------------------------------------------
+/** Multiply two 4x4 matrices.
+ * @param dst First factor, receives result.
+ * @param src Matrix to be multiplied with 'dst'.
+ */
+ASSIMP_API void aiMultiplyMatrix4(
+ C_STRUCT aiMatrix4x4 *dst,
+ const C_STRUCT aiMatrix4x4 *src);
+
+// --------------------------------------------------------------------------------
+/** Multiply two 3x3 matrices.
+ * @param dst First factor, receives result.
+ * @param src Matrix to be multiplied with 'dst'.
+ */
+ASSIMP_API void aiMultiplyMatrix3(
+ C_STRUCT aiMatrix3x3 *dst,
+ const C_STRUCT aiMatrix3x3 *src);
+
+// --------------------------------------------------------------------------------
+/** Get a 3x3 identity matrix.
+ * @param mat Matrix to receive its personal identity
+ */
+ASSIMP_API void aiIdentityMatrix3(
+ C_STRUCT aiMatrix3x3 *mat);
+
+// --------------------------------------------------------------------------------
+/** Get a 4x4 identity matrix.
+ * @param mat Matrix to receive its personal identity
+ */
+ASSIMP_API void aiIdentityMatrix4(
+ C_STRUCT aiMatrix4x4 *mat);
+
+// --------------------------------------------------------------------------------
+/** Returns the number of import file formats available in the current Assimp build.
+ * Use aiGetImportFormatDescription() to retrieve infos of a specific import format.
+ */
+ASSIMP_API size_t aiGetImportFormatCount(void);
+
+// --------------------------------------------------------------------------------
+/** Returns a description of the nth import file format. Use #aiGetImportFormatCount()
+ * to learn how many import formats are supported.
+ * @param pIndex Index of the import format to retrieve information for. Valid range is
+ * 0 to #aiGetImportFormatCount()
+ * @return A description of that specific import format. NULL if pIndex is out of range.
+ */
+ASSIMP_API const C_STRUCT aiImporterDesc *aiGetImportFormatDescription(size_t pIndex);
+
+// --------------------------------------------------------------------------------
+/** Check if 2D vectors are equal.
+ * @param a First vector to compare
+ * @param b Second vector to compare
+ * @return 1 if the vectors are equal
+ * @return 0 if the vectors are not equal
+ */
+ASSIMP_API int aiVector2AreEqual(
+ const C_STRUCT aiVector2D *a,
+ const C_STRUCT aiVector2D *b);
+
+// --------------------------------------------------------------------------------
+/** Check if 2D vectors are equal using epsilon.
+ * @param a First vector to compare
+ * @param b Second vector to compare
+ * @param epsilon Epsilon
+ * @return 1 if the vectors are equal
+ * @return 0 if the vectors are not equal
+ */
+ASSIMP_API int aiVector2AreEqualEpsilon(
+ const C_STRUCT aiVector2D *a,
+ const C_STRUCT aiVector2D *b,
+ const float epsilon);
+
+// --------------------------------------------------------------------------------
+/** Add 2D vectors.
+ * @param dst First addend, receives result.
+ * @param src Vector to be added to 'dst'.
+ */
+ASSIMP_API void aiVector2Add(
+ C_STRUCT aiVector2D *dst,
+ const C_STRUCT aiVector2D *src);
+
+// --------------------------------------------------------------------------------
+/** Subtract 2D vectors.
+ * @param dst Minuend, receives result.
+ * @param src Vector to be subtracted from 'dst'.
+ */
+ASSIMP_API void aiVector2Subtract(
+ C_STRUCT aiVector2D *dst,
+ const C_STRUCT aiVector2D *src);
+
+// --------------------------------------------------------------------------------
+/** Multiply a 2D vector by a scalar.
+ * @param dst Vector to be scaled by \p s
+ * @param s Scale factor
+ */
+ASSIMP_API void aiVector2Scale(
+ C_STRUCT aiVector2D *dst,
+ const float s);
+
+// --------------------------------------------------------------------------------
+/** Multiply each component of a 2D vector with
+ * the components of another vector.
+ * @param dst First vector, receives result
+ * @param other Second vector
+ */
+ASSIMP_API void aiVector2SymMul(
+ C_STRUCT aiVector2D *dst,
+ const C_STRUCT aiVector2D *other);
+
+// --------------------------------------------------------------------------------
+/** Divide a 2D vector by a scalar.
+ * @param dst Vector to be divided by \p s
+ * @param s Scalar divisor
+ */
+ASSIMP_API void aiVector2DivideByScalar(
+ C_STRUCT aiVector2D *dst,
+ const float s);
+
+// --------------------------------------------------------------------------------
+/** Divide each component of a 2D vector by
+ * the components of another vector.
+ * @param dst Vector as the dividend
+ * @param v Vector as the divisor
+ */
+ASSIMP_API void aiVector2DivideByVector(
+ C_STRUCT aiVector2D *dst,
+ C_STRUCT aiVector2D *v);
+
+// --------------------------------------------------------------------------------
+/** Get the length of a 2D vector.
+ * @return v Vector to evaluate
+ */
+ASSIMP_API float aiVector2Length(
+ const C_STRUCT aiVector2D *v);
+
+// --------------------------------------------------------------------------------
+/** Get the squared length of a 2D vector.
+ * @return v Vector to evaluate
+ */
+ASSIMP_API float aiVector2SquareLength(
+ const C_STRUCT aiVector2D *v);
+
+// --------------------------------------------------------------------------------
+/** Negate a 2D vector.
+ * @param dst Vector to be negated
+ */
+ASSIMP_API void aiVector2Negate(
+ C_STRUCT aiVector2D *dst);
+
+// --------------------------------------------------------------------------------
+/** Get the dot product of 2D vectors.
+ * @param a First vector
+ * @param b Second vector
+ * @return The dot product of vectors
+ */
+ASSIMP_API float aiVector2DotProduct(
+ const C_STRUCT aiVector2D *a,
+ const C_STRUCT aiVector2D *b);
+
+// --------------------------------------------------------------------------------
+/** Normalize a 2D vector.
+ * @param v Vector to normalize
+ */
+ASSIMP_API void aiVector2Normalize(
+ C_STRUCT aiVector2D *v);
+
+// --------------------------------------------------------------------------------
+/** Check if 3D vectors are equal.
+ * @param a First vector to compare
+ * @param b Second vector to compare
+ * @return 1 if the vectors are equal
+ * @return 0 if the vectors are not equal
+ */
+ASSIMP_API int aiVector3AreEqual(
+ const C_STRUCT aiVector3D *a,
+ const C_STRUCT aiVector3D *b);
+
+// --------------------------------------------------------------------------------
+/** Check if 3D vectors are equal using epsilon.
+ * @param a First vector to compare
+ * @param b Second vector to compare
+ * @param epsilon Epsilon
+ * @return 1 if the vectors are equal
+ * @return 0 if the vectors are not equal
+ */
+ASSIMP_API int aiVector3AreEqualEpsilon(
+ const C_STRUCT aiVector3D *a,
+ const C_STRUCT aiVector3D *b,
+ const float epsilon);
+
+// --------------------------------------------------------------------------------
+/** Check if vector \p a is less than vector \p b.
+ * @param a First vector to compare
+ * @param b Second vector to compare
+ * @param epsilon Epsilon
+ * @return 1 if \p a is less than \p b
+ * @return 0 if \p a is equal or greater than \p b
+ */
+ASSIMP_API int aiVector3LessThan(
+ const C_STRUCT aiVector3D *a,
+ const C_STRUCT aiVector3D *b);
+
+// --------------------------------------------------------------------------------
+/** Add 3D vectors.
+ * @param dst First addend, receives result.
+ * @param src Vector to be added to 'dst'.
+ */
+ASSIMP_API void aiVector3Add(
+ C_STRUCT aiVector3D *dst,
+ const C_STRUCT aiVector3D *src);
+
+// --------------------------------------------------------------------------------
+/** Subtract 3D vectors.
+ * @param dst Minuend, receives result.
+ * @param src Vector to be subtracted from 'dst'.
+ */
+ASSIMP_API void aiVector3Subtract(
+ C_STRUCT aiVector3D *dst,
+ const C_STRUCT aiVector3D *src);
+
+// --------------------------------------------------------------------------------
+/** Multiply a 3D vector by a scalar.
+ * @param dst Vector to be scaled by \p s
+ * @param s Scale factor
+ */
+ASSIMP_API void aiVector3Scale(
+ C_STRUCT aiVector3D *dst,
+ const float s);
+
+// --------------------------------------------------------------------------------
+/** Multiply each component of a 3D vector with
+ * the components of another vector.
+ * @param dst First vector, receives result
+ * @param other Second vector
+ */
+ASSIMP_API void aiVector3SymMul(
+ C_STRUCT aiVector3D *dst,
+ const C_STRUCT aiVector3D *other);
+
+// --------------------------------------------------------------------------------
+/** Divide a 3D vector by a scalar.
+ * @param dst Vector to be divided by \p s
+ * @param s Scalar divisor
+ */
+ASSIMP_API void aiVector3DivideByScalar(
+ C_STRUCT aiVector3D *dst,
+ const float s);
+
+// --------------------------------------------------------------------------------
+/** Divide each component of a 3D vector by
+ * the components of another vector.
+ * @param dst Vector as the dividend
+ * @param v Vector as the divisor
+ */
+ASSIMP_API void aiVector3DivideByVector(
+ C_STRUCT aiVector3D *dst,
+ C_STRUCT aiVector3D *v);
+
+// --------------------------------------------------------------------------------
+/** Get the length of a 3D vector.
+ * @return v Vector to evaluate
+ */
+ASSIMP_API float aiVector3Length(
+ const C_STRUCT aiVector3D *v);
+
+// --------------------------------------------------------------------------------
+/** Get the squared length of a 3D vector.
+ * @return v Vector to evaluate
+ */
+ASSIMP_API float aiVector3SquareLength(
+ const C_STRUCT aiVector3D *v);
+
+// --------------------------------------------------------------------------------
+/** Negate a 3D vector.
+ * @param dst Vector to be negated
+ */
+ASSIMP_API void aiVector3Negate(
+ C_STRUCT aiVector3D *dst);
+
+// --------------------------------------------------------------------------------
+/** Get the dot product of 3D vectors.
+ * @param a First vector
+ * @param b Second vector
+ * @return The dot product of vectors
+ */
+ASSIMP_API float aiVector3DotProduct(
+ const C_STRUCT aiVector3D *a,
+ const C_STRUCT aiVector3D *b);
+
+// --------------------------------------------------------------------------------
+/** Get cross product of 3D vectors.
+ * @param dst Vector to receive the result.
+ * @param a First vector
+ * @param b Second vector
+ * @return The dot product of vectors
+ */
+ASSIMP_API void aiVector3CrossProduct(
+ C_STRUCT aiVector3D *dst,
+ const C_STRUCT aiVector3D *a,
+ const C_STRUCT aiVector3D *b);
+
+// --------------------------------------------------------------------------------
+/** Normalize a 3D vector.
+ * @param v Vector to normalize
+ */
+ASSIMP_API void aiVector3Normalize(
+ C_STRUCT aiVector3D *v);
+
+// --------------------------------------------------------------------------------
+/** Check for division by zero and normalize a 3D vector.
+ * @param v Vector to normalize
+ */
+ASSIMP_API void aiVector3NormalizeSafe(
+ C_STRUCT aiVector3D *v);
+
+// --------------------------------------------------------------------------------
+/** Rotate a 3D vector by a quaternion.
+ * @param v The vector to rotate by \p q
+ * @param q Quaternion to use to rotate \p v
+ */
+ASSIMP_API void aiVector3RotateByQuaternion(
+ C_STRUCT aiVector3D *v,
+ const C_STRUCT aiQuaternion *q);
+
+// --------------------------------------------------------------------------------
+/** Construct a 3x3 matrix from a 4x4 matrix.
+ * @param dst Receives the output matrix
+ * @param mat The 4x4 matrix to use
+ */
+ASSIMP_API void aiMatrix3FromMatrix4(
+ C_STRUCT aiMatrix3x3 *dst,
+ const C_STRUCT aiMatrix4x4 *mat);
+
+// --------------------------------------------------------------------------------
+/** Construct a 3x3 matrix from a quaternion.
+ * @param mat Receives the output matrix
+ * @param q The quaternion matrix to use
+ */
+ASSIMP_API void aiMatrix3FromQuaternion(
+ C_STRUCT aiMatrix3x3 *mat,
+ const C_STRUCT aiQuaternion *q);
+
+// --------------------------------------------------------------------------------
+/** Check if 3x3 matrices are equal.
+ * @param a First matrix to compare
+ * @param b Second matrix to compare
+ * @return 1 if the matrices are equal
+ * @return 0 if the matrices are not equal
+ */
+ASSIMP_API int aiMatrix3AreEqual(
+ const C_STRUCT aiMatrix3x3 *a,
+ const C_STRUCT aiMatrix3x3 *b);
+
+// --------------------------------------------------------------------------------
+/** Check if 3x3 matrices are equal.
+ * @param a First matrix to compare
+ * @param b Second matrix to compare
+ * @param epsilon Epsilon
+ * @return 1 if the matrices are equal
+ * @return 0 if the matrices are not equal
+ */
+ASSIMP_API int aiMatrix3AreEqualEpsilon(
+ const C_STRUCT aiMatrix3x3 *a,
+ const C_STRUCT aiMatrix3x3 *b,
+ const float epsilon);
+
+// --------------------------------------------------------------------------------
+/** Invert a 3x3 matrix.
+ * @param mat Matrix to invert
+ */
+ASSIMP_API void aiMatrix3Inverse(
+ C_STRUCT aiMatrix3x3 *mat);
+
+// --------------------------------------------------------------------------------
+/** Get the determinant of a 3x3 matrix.
+ * @param mat Matrix to get the determinant from
+ */
+ASSIMP_API float aiMatrix3Determinant(
+ const C_STRUCT aiMatrix3x3 *mat);
+
+// --------------------------------------------------------------------------------
+/** Get a 3x3 rotation matrix around the Z axis.
+ * @param mat Receives the output matrix
+ * @param angle Rotation angle, in radians
+ */
+ASSIMP_API void aiMatrix3RotationZ(
+ C_STRUCT aiMatrix3x3 *mat,
+ const float angle);
+
+// --------------------------------------------------------------------------------
+/** Returns a 3x3 rotation matrix for a rotation around an arbitrary axis.
+ * @param mat Receives the output matrix
+ * @param axis Rotation axis, should be a normalized vector
+ * @param angle Rotation angle, in radians
+ */
+ASSIMP_API void aiMatrix3FromRotationAroundAxis(
+ C_STRUCT aiMatrix3x3 *mat,
+ const C_STRUCT aiVector3D *axis,
+ const float angle);
+
+// --------------------------------------------------------------------------------
+/** Get a 3x3 translation matrix.
+ * @param mat Receives the output matrix
+ * @param translation The translation vector
+ */
+ASSIMP_API void aiMatrix3Translation(
+ C_STRUCT aiMatrix3x3 *mat,
+ const C_STRUCT aiVector2D *translation);
+
+// --------------------------------------------------------------------------------
+/** Create a 3x3 matrix that rotates one vector to another vector.
+ * @param mat Receives the output matrix
+ * @param from Vector to rotate from
+ * @param to Vector to rotate to
+ */
+ASSIMP_API void aiMatrix3FromTo(
+ C_STRUCT aiMatrix3x3 *mat,
+ const C_STRUCT aiVector3D *from,
+ const C_STRUCT aiVector3D *to);
+
+// --------------------------------------------------------------------------------
+/** Construct a 4x4 matrix from a 3x3 matrix.
+ * @param dst Receives the output matrix
+ * @param mat The 3x3 matrix to use
+ */
+ASSIMP_API void aiMatrix4FromMatrix3(
+ C_STRUCT aiMatrix4x4 *dst,
+ const C_STRUCT aiMatrix3x3 *mat);
+
+// --------------------------------------------------------------------------------
+/** Construct a 4x4 matrix from scaling, rotation and position.
+ * @param mat Receives the output matrix.
+ * @param scaling The scaling for the x,y,z axes
+ * @param rotation The rotation as a hamilton quaternion
+ * @param position The position for the x,y,z axes
+ */
+ASSIMP_API void aiMatrix4FromScalingQuaternionPosition(
+ C_STRUCT aiMatrix4x4 *mat,
+ const C_STRUCT aiVector3D *scaling,
+ const C_STRUCT aiQuaternion *rotation,
+ const C_STRUCT aiVector3D *position);
+
+// --------------------------------------------------------------------------------
+/** Add 4x4 matrices.
+ * @param dst First addend, receives result.
+ * @param src Matrix to be added to 'dst'.
+ */
+ASSIMP_API void aiMatrix4Add(
+ C_STRUCT aiMatrix4x4 *dst,
+ const C_STRUCT aiMatrix4x4 *src);
+
+// --------------------------------------------------------------------------------
+/** Check if 4x4 matrices are equal.
+ * @param a First matrix to compare
+ * @param b Second matrix to compare
+ * @return 1 if the matrices are equal
+ * @return 0 if the matrices are not equal
+ */
+ASSIMP_API int aiMatrix4AreEqual(
+ const C_STRUCT aiMatrix4x4 *a,
+ const C_STRUCT aiMatrix4x4 *b);
+
+// --------------------------------------------------------------------------------
+/** Check if 4x4 matrices are equal.
+ * @param a First matrix to compare
+ * @param b Second matrix to compare
+ * @param epsilon Epsilon
+ * @return 1 if the matrices are equal
+ * @return 0 if the matrices are not equal
+ */
+ASSIMP_API int aiMatrix4AreEqualEpsilon(
+ const C_STRUCT aiMatrix4x4 *a,
+ const C_STRUCT aiMatrix4x4 *b,
+ const float epsilon);
+
+// --------------------------------------------------------------------------------
+/** Invert a 4x4 matrix.
+ * @param result Matrix to invert
+ */
+ASSIMP_API void aiMatrix4Inverse(
+ C_STRUCT aiMatrix4x4 *mat);
+
+// --------------------------------------------------------------------------------
+/** Get the determinant of a 4x4 matrix.
+ * @param mat Matrix to get the determinant from
+ * @return The determinant of the matrix
+ */
+ASSIMP_API float aiMatrix4Determinant(
+ const C_STRUCT aiMatrix4x4 *mat);
+
+// --------------------------------------------------------------------------------
+/** Returns true of the matrix is the identity matrix.
+ * @param mat Matrix to get the determinant from
+ * @return 1 if \p mat is an identity matrix.
+ * @return 0 if \p mat is not an identity matrix.
+ */
+ASSIMP_API int aiMatrix4IsIdentity(
+ const C_STRUCT aiMatrix4x4 *mat);
+
+// --------------------------------------------------------------------------------
+/** Decompose a transformation matrix into its scaling,
+ * rotational as euler angles, and translational components.
+ *
+ * @param mat Matrix to decompose
+ * @param scaling Receives the output scaling for the x,y,z axes
+ * @param rotation Receives the output rotation as a Euler angles
+ * @param position Receives the output position for the x,y,z axes
+ */
+ASSIMP_API void aiMatrix4DecomposeIntoScalingEulerAnglesPosition(
+ const C_STRUCT aiMatrix4x4 *mat,
+ C_STRUCT aiVector3D *scaling,
+ C_STRUCT aiVector3D *rotation,
+ C_STRUCT aiVector3D *position);
+
+// --------------------------------------------------------------------------------
+/** Decompose a transformation matrix into its scaling,
+ * rotational split into an axis and rotational angle,
+ * and it's translational components.
+ *
+ * @param mat Matrix to decompose
+ * @param rotation Receives the rotational component
+ * @param axis Receives the output rotation axis
+ * @param angle Receives the output rotation angle
+ * @param position Receives the output position for the x,y,z axes.
+ */
+ASSIMP_API void aiMatrix4DecomposeIntoScalingAxisAnglePosition(
+ const C_STRUCT aiMatrix4x4 *mat,
+ C_STRUCT aiVector3D *scaling,
+ C_STRUCT aiVector3D *axis,
+ ai_real *angle,
+ C_STRUCT aiVector3D *position);
+
+// --------------------------------------------------------------------------------
+/** Decompose a transformation matrix into its rotational and
+ * translational components.
+ *
+ * @param mat Matrix to decompose
+ * @param rotation Receives the rotational component
+ * @param position Receives the translational component.
+ */
+ASSIMP_API void aiMatrix4DecomposeNoScaling(
+ const C_STRUCT aiMatrix4x4 *mat,
+ C_STRUCT aiQuaternion *rotation,
+ C_STRUCT aiVector3D *position);
+
+// --------------------------------------------------------------------------------
+/** Creates a 4x4 matrix from a set of euler angles.
+ * @param mat Receives the output matrix
+ * @param x Rotation angle for the x-axis, in radians
+ * @param y Rotation angle for the y-axis, in radians
+ * @param z Rotation angle for the z-axis, in radians
+ */
+ASSIMP_API void aiMatrix4FromEulerAngles(
+ C_STRUCT aiMatrix4x4 *mat,
+ float x, float y, float z);
+
+// --------------------------------------------------------------------------------
+/** Get a 4x4 rotation matrix around the X axis.
+ * @param mat Receives the output matrix
+ * @param angle Rotation angle, in radians
+ */
+ASSIMP_API void aiMatrix4RotationX(
+ C_STRUCT aiMatrix4x4 *mat,
+ const float angle);
+
+// --------------------------------------------------------------------------------
+/** Get a 4x4 rotation matrix around the Y axis.
+ * @param mat Receives the output matrix
+ * @param angle Rotation angle, in radians
+ */
+ASSIMP_API void aiMatrix4RotationY(
+ C_STRUCT aiMatrix4x4 *mat,
+ const float angle);
+
+// --------------------------------------------------------------------------------
+/** Get a 4x4 rotation matrix around the Z axis.
+ * @param mat Receives the output matrix
+ * @param angle Rotation angle, in radians
+ */
+ASSIMP_API void aiMatrix4RotationZ(
+ C_STRUCT aiMatrix4x4 *mat,
+ const float angle);
+
+// --------------------------------------------------------------------------------
+/** Returns a 4x4 rotation matrix for a rotation around an arbitrary axis.
+ * @param mat Receives the output matrix
+ * @param axis Rotation axis, should be a normalized vector
+ * @param angle Rotation angle, in radians
+ */
+ASSIMP_API void aiMatrix4FromRotationAroundAxis(
+ C_STRUCT aiMatrix4x4 *mat,
+ const C_STRUCT aiVector3D *axis,
+ const float angle);
+
+// --------------------------------------------------------------------------------
+/** Get a 4x4 translation matrix.
+ * @param mat Receives the output matrix
+ * @param translation The translation vector
+ */
+ASSIMP_API void aiMatrix4Translation(
+ C_STRUCT aiMatrix4x4 *mat,
+ const C_STRUCT aiVector3D *translation);
+
+// --------------------------------------------------------------------------------
+/** Get a 4x4 scaling matrix.
+ * @param mat Receives the output matrix
+ * @param scaling The scaling vector
+ */
+ASSIMP_API void aiMatrix4Scaling(
+ C_STRUCT aiMatrix4x4 *mat,
+ const C_STRUCT aiVector3D *scaling);
+
+// --------------------------------------------------------------------------------
+/** Create a 4x4 matrix that rotates one vector to another vector.
+ * @param mat Receives the output matrix
+ * @param from Vector to rotate from
+ * @param to Vector to rotate to
+ */
+ASSIMP_API void aiMatrix4FromTo(
+ C_STRUCT aiMatrix4x4 *mat,
+ const C_STRUCT aiVector3D *from,
+ const C_STRUCT aiVector3D *to);
+
+// --------------------------------------------------------------------------------
+/** Create a Quaternion from euler angles.
+ * @param q Receives the output quaternion
+ * @param x Rotation angle for the x-axis, in radians
+ * @param y Rotation angle for the y-axis, in radians
+ * @param z Rotation angle for the z-axis, in radians
+ */
+ASSIMP_API void aiQuaternionFromEulerAngles(
+ C_STRUCT aiQuaternion *q,
+ float x, float y, float z);
+
+// --------------------------------------------------------------------------------
+/** Create a Quaternion from an axis angle pair.
+ * @param q Receives the output quaternion
+ * @param axis The orientation axis
+ * @param angle The rotation angle, in radians
+ */
+ASSIMP_API void aiQuaternionFromAxisAngle(
+ C_STRUCT aiQuaternion *q,
+ const C_STRUCT aiVector3D *axis,
+ const float angle);
+
+// --------------------------------------------------------------------------------
+/** Create a Quaternion from a normalized quaternion stored
+ * in a 3D vector.
+ * @param q Receives the output quaternion
+ * @param normalized The vector that stores the quaternion
+ */
+ASSIMP_API void aiQuaternionFromNormalizedQuaternion(
+ C_STRUCT aiQuaternion *q,
+ const C_STRUCT aiVector3D *normalized);
+
+// --------------------------------------------------------------------------------
+/** Check if quaternions are equal.
+ * @param a First quaternion to compare
+ * @param b Second quaternion to compare
+ * @return 1 if the quaternions are equal
+ * @return 0 if the quaternions are not equal
+ */
+ASSIMP_API int aiQuaternionAreEqual(
+ const C_STRUCT aiQuaternion *a,
+ const C_STRUCT aiQuaternion *b);
+
+// --------------------------------------------------------------------------------
+/** Check if quaternions are equal using epsilon.
+ * @param a First quaternion to compare
+ * @param b Second quaternion to compare
+ * @param epsilon Epsilon
+ * @return 1 if the quaternions are equal
+ * @return 0 if the quaternions are not equal
+ */
+ASSIMP_API int aiQuaternionAreEqualEpsilon(
+ const C_STRUCT aiQuaternion *a,
+ const C_STRUCT aiQuaternion *b,
+ const float epsilon);
+
+// --------------------------------------------------------------------------------
+/** Normalize a quaternion.
+ * @param q Quaternion to normalize
+ */
+ASSIMP_API void aiQuaternionNormalize(
+ C_STRUCT aiQuaternion *q);
+
+// --------------------------------------------------------------------------------
+/** Compute quaternion conjugate.
+ * @param q Quaternion to compute conjugate,
+ * receives the output quaternion
+ */
+ASSIMP_API void aiQuaternionConjugate(
+ C_STRUCT aiQuaternion *q);
+
+// --------------------------------------------------------------------------------
+/** Multiply quaternions.
+ * @param dst First quaternion, receives the output quaternion
+ * @param q Second quaternion
+ */
+ASSIMP_API void aiQuaternionMultiply(
+ C_STRUCT aiQuaternion *dst,
+ const C_STRUCT aiQuaternion *q);
+
+// --------------------------------------------------------------------------------
+/** Performs a spherical interpolation between two quaternions.
+ * @param dst Receives the quaternion resulting from the interpolation.
+ * @param start Quaternion when factor == 0
+ * @param end Quaternion when factor == 1
+ * @param factor Interpolation factor between 0 and 1
+ */
+ASSIMP_API void aiQuaternionInterpolate(
+ C_STRUCT aiQuaternion *dst,
+ const C_STRUCT aiQuaternion *start,
+ const C_STRUCT aiQuaternion *end,
+ const float factor);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // AI_ASSIMP_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/color4.h b/src/mesh/assimp-master/include/assimp/color4.h
new file mode 100644
index 0000000..e1e3549
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/color4.h
@@ -0,0 +1,101 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file color4.h
+ * @brief RGBA color structure, including operators when compiling in C++
+ */
+#pragma once
+#ifndef AI_COLOR4D_H_INC
+#define AI_COLOR4D_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/defs.h>
+
+#ifdef __cplusplus
+
+// ----------------------------------------------------------------------------------
+/** Represents a color in Red-Green-Blue space including an
+* alpha component. Color values range from 0 to 1. */
+// ----------------------------------------------------------------------------------
+template <typename TReal>
+class aiColor4t {
+public:
+ aiColor4t() AI_NO_EXCEPT : r(), g(), b(), a() {}
+ aiColor4t (TReal _r, TReal _g, TReal _b, TReal _a)
+ : r(_r), g(_g), b(_b), a(_a) {}
+ explicit aiColor4t (TReal _r) : r(_r), g(_r), b(_r), a(_r) {}
+ aiColor4t (const aiColor4t& o) = default;
+
+ // combined operators
+ const aiColor4t& operator += (const aiColor4t& o);
+ const aiColor4t& operator -= (const aiColor4t& o);
+ const aiColor4t& operator *= (TReal f);
+ const aiColor4t& operator /= (TReal f);
+
+ // comparison
+ bool operator == (const aiColor4t& other) const;
+ bool operator != (const aiColor4t& other) const;
+ bool operator < (const aiColor4t& other) const;
+
+ // color tuple access, rgba order
+ inline TReal operator[](unsigned int i) const;
+ inline TReal& operator[](unsigned int i);
+
+ /** check whether a color is (close to) black */
+ inline bool IsBlack() const;
+
+ // Red, green, blue and alpha color values
+ TReal r, g, b, a;
+}; // !struct aiColor4D
+
+typedef aiColor4t<ai_real> aiColor4D;
+
+#else
+
+struct aiColor4D {
+ ai_real r, g, b, a;
+};
+
+#endif // __cplusplus
+
+#endif // AI_COLOR4D_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/color4.inl b/src/mesh/assimp-master/include/assimp/color4.inl
new file mode 100644
index 0000000..aed3de6
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/color4.inl
@@ -0,0 +1,249 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file color4.inl
+ * @brief Inline implementation of aiColor4t<TReal> operators
+ */
+#pragma once
+#ifndef AI_COLOR4D_INL_INC
+#define AI_COLOR4D_INL_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#ifdef __cplusplus
+#include <assimp/color4.h>
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+const aiColor4t<TReal>& aiColor4t<TReal>::operator += (const aiColor4t<TReal>& o) {
+ r += o.r;
+ g += o.g;
+ b += o.b;
+ a += o.a;
+
+ return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+const aiColor4t<TReal>& aiColor4t<TReal>::operator -= (const aiColor4t<TReal>& o) {
+ r -= o.r;
+ g -= o.g;
+ b -= o.b;
+ a -= o.a;
+
+ return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+const aiColor4t<TReal>& aiColor4t<TReal>::operator *= (TReal f) {
+ r *= f;
+ g *= f;
+ b *= f;
+ a *= f;
+
+ return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+const aiColor4t<TReal>& aiColor4t<TReal>::operator /= (TReal f) {
+ r /= f;
+ g /= f;
+ b /= f;
+ a /= f;
+
+ return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+TReal aiColor4t<TReal>::operator[](unsigned int i) const {
+ switch ( i ) {
+ case 0:
+ return r;
+ case 1:
+ return g;
+ case 2:
+ return b;
+ case 3:
+ return a;
+ default:
+ break;
+ }
+ return r;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+TReal& aiColor4t<TReal>::operator[](unsigned int i) {
+ switch ( i ) {
+ case 0:
+ return r;
+ case 1:
+ return g;
+ case 2:
+ return b;
+ case 3:
+ return a;
+ default:
+ break;
+ }
+ return r;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+bool aiColor4t<TReal>::operator== (const aiColor4t<TReal>& other) const {
+ return r == other.r && g == other.g && b == other.b && a == other.a;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+bool aiColor4t<TReal>::operator!= (const aiColor4t<TReal>& other) const {
+ return r != other.r || g != other.g || b != other.b || a != other.a;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+bool aiColor4t<TReal>::operator< (const aiColor4t<TReal>& other) const {
+ return r < other.r || (
+ r == other.r && (
+ g < other.g || (
+ g == other.g && (
+ b < other.b || (
+ b == other.b && (
+ a < other.a
+ )
+ )
+ )
+ )
+ )
+ );
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiColor4t<TReal> operator + (const aiColor4t<TReal>& v1, const aiColor4t<TReal>& v2) {
+ return aiColor4t<TReal>( v1.r + v2.r, v1.g + v2.g, v1.b + v2.b, v1.a + v2.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiColor4t<TReal> operator - (const aiColor4t<TReal>& v1, const aiColor4t<TReal>& v2) {
+ return aiColor4t<TReal>( v1.r - v2.r, v1.g - v2.g, v1.b - v2.b, v1.a - v2.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiColor4t<TReal> operator * (const aiColor4t<TReal>& v1, const aiColor4t<TReal>& v2) {
+ return aiColor4t<TReal>( v1.r * v2.r, v1.g * v2.g, v1.b * v2.b, v1.a * v2.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiColor4t<TReal> operator / (const aiColor4t<TReal>& v1, const aiColor4t<TReal>& v2) {
+ return aiColor4t<TReal>( v1.r / v2.r, v1.g / v2.g, v1.b / v2.b, v1.a / v2.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiColor4t<TReal> operator * ( TReal f, const aiColor4t<TReal>& v) {
+ return aiColor4t<TReal>( f*v.r, f*v.g, f*v.b, f*v.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiColor4t<TReal> operator * ( const aiColor4t<TReal>& v, TReal f) {
+ return aiColor4t<TReal>( f*v.r, f*v.g, f*v.b, f*v.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiColor4t<TReal> operator / ( const aiColor4t<TReal>& v, TReal f) {
+ return v * (1/f);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiColor4t<TReal> operator / ( TReal f,const aiColor4t<TReal>& v) {
+ return aiColor4t<TReal>(f,f,f,f)/v;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiColor4t<TReal> operator + ( const aiColor4t<TReal>& v, TReal f) {
+ return aiColor4t<TReal>( f+v.r, f+v.g, f+v.b, f+v.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiColor4t<TReal> operator - ( const aiColor4t<TReal>& v, TReal f) {
+ return aiColor4t<TReal>( v.r-f, v.g-f, v.b-f, v.a-f);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiColor4t<TReal> operator + ( TReal f, const aiColor4t<TReal>& v) {
+ return aiColor4t<TReal>( f+v.r, f+v.g, f+v.b, f+v.a);
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiColor4t<TReal> operator - ( TReal f, const aiColor4t<TReal>& v) {
+ return aiColor4t<TReal>( f-v.r, f-v.g, f-v.b, f-v.a);
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+bool aiColor4t<TReal>::IsBlack() const {
+ // The alpha component doesn't care here. black is black.
+ static const TReal epsilon = 10e-3f;
+ return std::fabs( r ) < epsilon && std::fabs( g ) < epsilon && std::fabs( b ) < epsilon;
+}
+
+#endif // __cplusplus
+#endif // AI_VECTOR3D_INL_INC
diff --git a/src/mesh/assimp-master/include/assimp/commonMetaData.h b/src/mesh/assimp-master/include/assimp/commonMetaData.h
new file mode 100644
index 0000000..ccded58
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/commonMetaData.h
@@ -0,0 +1,69 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file commonMetaData.h
+ * @brief Defines a set of common scene metadata keys.
+ */
+#pragma once
+#ifndef AI_COMMONMETADATA_H_INC
+#define AI_COMMONMETADATA_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+/// Scene metadata holding the name of the importer which loaded the source asset.
+/// This is always present if the scene was created from an imported asset.
+#define AI_METADATA_SOURCE_FORMAT "SourceAsset_Format"
+
+/// Scene metadata holding the version of the source asset as a string, if available.
+/// Not all formats add this metadata.
+#define AI_METADATA_SOURCE_FORMAT_VERSION "SourceAsset_FormatVersion"
+
+/// Scene metadata holding the name of the software which generated the source asset, if available.
+/// Not all formats add this metadata.
+#define AI_METADATA_SOURCE_GENERATOR "SourceAsset_Generator"
+
+/// Scene metadata holding the source asset copyright statement, if available.
+/// Not all formats add this metadata.
+#define AI_METADATA_SOURCE_COPYRIGHT "SourceAsset_Copyright"
+
+#endif
diff --git a/src/mesh/assimp-master/include/assimp/config.h.in b/src/mesh/assimp-master/include/assimp/config.h.in
new file mode 100644
index 0000000..bf00765
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/config.h.in
@@ -0,0 +1,1129 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, 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 config.h
+ * @brief Defines constants for configurable properties for the library
+ *
+ * Typically these properties are set via
+ * #Assimp::Importer::SetPropertyFloat,
+ * #Assimp::Importer::SetPropertyInteger or
+ * #Assimp::Importer::SetPropertyString,
+ * depending on the data type of a property. All properties have a
+ * default value. See the doc for the mentioned methods for more details.
+ *
+ * <br><br>
+ * The corresponding functions for use with the plain-c API are:
+ * #aiSetImportPropertyInteger,
+ * #aiSetImportPropertyFloat,
+ * #aiSetImportPropertyString
+ */
+#pragma once
+#ifndef AI_CONFIG_H_INC
+#define AI_CONFIG_H_INC
+
+
+// ###########################################################################
+// LIBRARY SETTINGS
+// General, global settings
+// ###########################################################################
+
+// ---------------------------------------------------------------------------
+/** @brief Enables time measurements.
+ *
+ * If enabled, measures the time needed for each part of the loading
+ * process (i.e. IO time, importing, postprocessing, ..) and dumps
+ * these timings to the DefaultLogger. See the @link perf Performance
+ * Page@endlink for more information on this topic.
+ *
+ * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_GLOB_MEASURE_TIME \
+ "GLOB_MEASURE_TIME"
+
+
+// ---------------------------------------------------------------------------
+/** @brief Global setting to disable generation of skeleton dummy meshes
+ *
+ * Skeleton dummy meshes are generated as a visualization aid in cases which
+ * the input data contains no geometry, but only animation data.
+ * Property data type: bool. Default value: false
+ */
+// ---------------------------------------------------------------------------
+#define AI_CONFIG_IMPORT_NO_SKELETON_MESHES \
+ "IMPORT_NO_SKELETON_MESHES"
+
+
+
+# if 0 // not implemented yet
+// ---------------------------------------------------------------------------
+/** @brief Set Assimp's multithreading policy.
+ *
+ * This setting is ignored if Assimp was built without boost.thread
+ * support (ASSIMP_BUILD_NO_THREADING, which is implied by ASSIMP_BUILD_BOOST_WORKAROUND).
+ * Possible values are: -1 to let Assimp decide what to do, 0 to disable
+ * multithreading entirely and any number larger than 0 to force a specific
+ * number of threads. Assimp is always free to ignore this settings, which is
+ * merely a hint. Usually, the default value (-1) will be fine. However, if
+ * Assimp is used concurrently from multiple user threads, it might be useful
+ * to limit each Importer instance to a specific number of cores.
+ *
+ * For more information, see the @link threading Threading page@endlink.
+ * Property type: int, default value: -1.
+ */
+#define AI_CONFIG_GLOB_MULTITHREADING \
+ "GLOB_MULTITHREADING"
+#endif
+
+// ###########################################################################
+// POST PROCESSING SETTINGS
+// Various stuff to fine-tune the behavior of a specific post processing step.
+// ###########################################################################
+
+
+// ---------------------------------------------------------------------------
+/** @brief Maximum bone count per mesh for the SplitbyBoneCount step.
+ *
+ * Meshes are split until the maximum number of bones is reached. The default
+ * value is AI_SBBC_DEFAULT_MAX_BONES, which may be altered at
+ * compile-time.
+ * Property data type: integer.
+ */
+// ---------------------------------------------------------------------------
+#define AI_CONFIG_PP_SBBC_MAX_BONES \
+ "PP_SBBC_MAX_BONES"
+
+
+// default limit for bone count
+#if (!defined AI_SBBC_DEFAULT_MAX_BONES)
+# define AI_SBBC_DEFAULT_MAX_BONES 60
+#endif
+
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies the maximum angle that may be between two vertex tangents
+ * that their tangents and bi-tangents are smoothed.
+ *
+ * This applies to the CalcTangentSpace-Step. The angle is specified
+ * in degrees. The maximum value is 175.
+ * Property type: float. Default value: 45 degrees
+ */
+#define AI_CONFIG_PP_CT_MAX_SMOOTHING_ANGLE \
+ "PP_CT_MAX_SMOOTHING_ANGLE"
+
+// ---------------------------------------------------------------------------
+/** @brief Source UV channel for tangent space computation.
+ *
+ * The specified channel must exist or an error will be raised.
+ * Property type: integer. Default value: 0
+ */
+// ---------------------------------------------------------------------------
+#define AI_CONFIG_PP_CT_TEXTURE_CHANNEL_INDEX \
+ "PP_CT_TEXTURE_CHANNEL_INDEX"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies the maximum angle that may be between two face normals
+ * at the same vertex position that their are smoothed together.
+ *
+ * Sometimes referred to as 'crease angle'.
+ * This applies to the GenSmoothNormals-Step. The angle is specified
+ * in degrees, so 180 is PI. The default value is 175 degrees (all vertex
+ * normals are smoothed). The maximum value is 175, too. Property type: float.
+ * Warning: setting this option may cause a severe loss of performance. The
+ * performance is unaffected if the #AI_CONFIG_FAVOUR_SPEED flag is set but
+ * the output quality may be reduced.
+ */
+#define AI_CONFIG_PP_GSN_MAX_SMOOTHING_ANGLE \
+ "PP_GSN_MAX_SMOOTHING_ANGLE"
+
+
+// ---------------------------------------------------------------------------
+/** @brief Sets the colormap (= palette) to be used to decode embedded
+ * textures in MDL (Quake or 3DGS) files.
+ *
+ * This must be a valid path to a file. The file is 768 (256*3) bytes
+ * large and contains RGB triplets for each of the 256 palette entries.
+ * The default value is colormap.lmp. If the file is not found,
+ * a default palette (from Quake 1) is used.
+ * Property type: string.
+ */
+#define AI_CONFIG_IMPORT_MDL_COLORMAP \
+ "IMPORT_MDL_COLORMAP"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_RemoveRedundantMaterials step to
+ * keep materials matching a name in a given list.
+ *
+ * This is a list of 1 to n strings, ' ' serves as delimiter character.
+ * Identifiers containing whitespaces must be enclosed in *single*
+ * quotation marks. For example:<tt>
+ * "keep-me and_me_to anotherMaterialToBeKept \'name with whitespace\'"</tt>.
+ * If a material matches on of these names, it will not be modified or
+ * removed by the postprocessing step nor will other materials be replaced
+ * by a reference to it. <br>
+ * This option might be useful if you are using some magic material names
+ * to pass additional semantics through the content pipeline. This ensures
+ * they won't be optimized away, but a general optimization is still
+ * performed for materials not contained in the list.
+ * Property type: String. Default value: n/a
+ * @note Linefeeds, tabs or carriage returns are treated as whitespace.
+ * Material names are case sensitive.
+ */
+#define AI_CONFIG_PP_RRM_EXCLUDE_LIST \
+ "PP_RRM_EXCLUDE_LIST"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_PreTransformVertices step to
+ * keep the scene hierarchy. Meshes are moved to worldspace, but
+ * no optimization is performed (read: meshes with equal materials are not
+ * joined. The total number of meshes won't change).
+ *
+ * This option could be of use for you if the scene hierarchy contains
+ * important additional information which you intend to parse.
+ * For rendering, you can still render all meshes in the scene without
+ * any transformations.
+ * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_PP_PTV_KEEP_HIERARCHY \
+ "PP_PTV_KEEP_HIERARCHY"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_PreTransformVertices step to normalize
+ * all vertex components into the [-1,1] range. That is, a bounding box
+ * for the whole scene is computed, the maximum component is taken and all
+ * meshes are scaled appropriately (uniformly of course!).
+ * This might be useful if you don't know the spatial dimension of the input
+ * data*/
+#define AI_CONFIG_PP_PTV_NORMALIZE \
+ "PP_PTV_NORMALIZE"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_PreTransformVertices step to use
+ * a users defined matrix as the scene root node transformation before
+ * transforming vertices.
+ * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_PP_PTV_ADD_ROOT_TRANSFORMATION \
+ "PP_PTV_ADD_ROOT_TRANSFORMATION"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_PreTransformVertices step to use
+ * a users defined matrix as the scene root node transformation before
+ * transforming vertices. This property correspond to the 'a1' component
+ * of the transformation matrix.
+ * Property type: aiMatrix4x4.
+ */
+#define AI_CONFIG_PP_PTV_ROOT_TRANSFORMATION \
+ "PP_PTV_ROOT_TRANSFORMATION"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_FindDegenerates step to
+ * remove degenerated primitives from the import - immediately.
+ *
+ * The default behaviour converts degenerated triangles to lines and
+ * degenerated lines to points. See the documentation to the
+ * #aiProcess_FindDegenerates step for a detailed example of the various ways
+ * to get rid of these lines and points if you don't want them.
+ * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_PP_FD_REMOVE \
+ "PP_FD_REMOVE"
+
+// ---------------------------------------------------------------------------
+/**
+ * @brief Configures the #aiProcess_FindDegenerates to check the area of a
+ * trinagle to be greates than e-6. If this is not the case the triangle will
+ * be removed if #AI_CONFIG_PP_FD_REMOVE is set to true.
+ */
+#define AI_CONFIG_PP_FD_CHECKAREA \
+ "PP_FD_CHECKAREA"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the #aiProcess_OptimizeGraph step to preserve nodes
+ * matching a name in a given list.
+ *
+ * This is a list of 1 to n strings, ' ' serves as delimiter character.
+ * Identifiers containing whitespaces must be enclosed in *single*
+ * quotation marks. For example:<tt>
+ * "keep-me and_me_to anotherNodeToBeKept \'name with whitespace\'"</tt>.
+ * If a node matches on of these names, it will not be modified or
+ * removed by the postprocessing step.<br>
+ * This option might be useful if you are using some magic node names
+ * to pass additional semantics through the content pipeline. This ensures
+ * they won't be optimized away, but a general optimization is still
+ * performed for nodes not contained in the list.
+ * Property type: String. Default value: n/a
+ * @note Linefeeds, tabs or carriage returns are treated as whitespace.
+ * Node names are case sensitive.
+ */
+#define AI_CONFIG_PP_OG_EXCLUDE_LIST \
+ "PP_OG_EXCLUDE_LIST"
+
+// ---------------------------------------------------------------------------
+/** @brief Set the maximum number of triangles in a mesh.
+ *
+ * This is used by the "SplitLargeMeshes" PostProcess-Step to determine
+ * whether a mesh must be split or not.
+ * @note The default value is AI_SLM_DEFAULT_MAX_TRIANGLES
+ * Property type: integer.
+ */
+#define AI_CONFIG_PP_SLM_TRIANGLE_LIMIT \
+ "PP_SLM_TRIANGLE_LIMIT"
+
+// default value for AI_CONFIG_PP_SLM_TRIANGLE_LIMIT
+#if (!defined AI_SLM_DEFAULT_MAX_TRIANGLES)
+# define AI_SLM_DEFAULT_MAX_TRIANGLES 1000000
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Set the maximum number of vertices in a mesh.
+ *
+ * This is used by the "SplitLargeMeshes" PostProcess-Step to determine
+ * whether a mesh must be split or not.
+ * @note The default value is AI_SLM_DEFAULT_MAX_VERTICES
+ * Property type: integer.
+ */
+#define AI_CONFIG_PP_SLM_VERTEX_LIMIT \
+ "PP_SLM_VERTEX_LIMIT"
+
+// default value for AI_CONFIG_PP_SLM_VERTEX_LIMIT
+#if (!defined AI_SLM_DEFAULT_MAX_VERTICES)
+# define AI_SLM_DEFAULT_MAX_VERTICES 1000000
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Set the maximum number of bones affecting a single vertex
+ *
+ * This is used by the #aiProcess_LimitBoneWeights PostProcess-Step.
+ * @note The default value is AI_LMW_MAX_WEIGHTS
+ * Property type: integer.*/
+#define AI_CONFIG_PP_LBW_MAX_WEIGHTS \
+ "PP_LBW_MAX_WEIGHTS"
+
+// default value for AI_CONFIG_PP_LBW_MAX_WEIGHTS
+#if (!defined AI_LMW_MAX_WEIGHTS)
+# define AI_LMW_MAX_WEIGHTS 0x4
+#endif // !! AI_LMW_MAX_WEIGHTS
+
+// ---------------------------------------------------------------------------
+/** @brief Lower the deboning threshold in order to remove more bones.
+ *
+ * This is used by the #aiProcess_Debone PostProcess-Step.
+ * @note The default value is AI_DEBONE_THRESHOLD
+ * Property type: float.*/
+#define AI_CONFIG_PP_DB_THRESHOLD \
+ "PP_DB_THRESHOLD"
+
+// default value for AI_CONFIG_PP_LBW_MAX_WEIGHTS
+#if (!defined AI_DEBONE_THRESHOLD)
+# define AI_DEBONE_THRESHOLD 1.0f
+#endif // !! AI_DEBONE_THRESHOLD
+
+// ---------------------------------------------------------------------------
+/** @brief Require all bones qualify for deboning before removing any
+ *
+ * This is used by the #aiProcess_Debone PostProcess-Step.
+ * @note The default value is 0
+ * Property type: bool.*/
+#define AI_CONFIG_PP_DB_ALL_OR_NONE \
+ "PP_DB_ALL_OR_NONE"
+
+/** @brief Default value for the #AI_CONFIG_PP_ICL_PTCACHE_SIZE property
+ */
+#ifndef PP_ICL_PTCACHE_SIZE
+# define PP_ICL_PTCACHE_SIZE 12
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Set the size of the post-transform vertex cache to optimize the
+ * vertices for. This configures the #aiProcess_ImproveCacheLocality step.
+ *
+ * The size is given in vertices. Of course you can't know how the vertex
+ * format will exactly look like after the import returns, but you can still
+ * guess what your meshes will probably have.
+ * @note The default value is #PP_ICL_PTCACHE_SIZE. That results in slight
+ * performance improvements for most nVidia/AMD cards since 2002.
+ * Property type: integer.
+ */
+#define AI_CONFIG_PP_ICL_PTCACHE_SIZE "PP_ICL_PTCACHE_SIZE"
+
+// ---------------------------------------------------------------------------
+/** @brief Enumerates components of the aiScene and aiMesh data structures
+ * that can be excluded from the import using the #aiProcess_RemoveComponent step.
+ *
+ * See the documentation to #aiProcess_RemoveComponent for more details.
+ */
+enum aiComponent
+{
+ /** Normal vectors */
+#ifdef SWIG
+ aiComponent_NORMALS = 0x2,
+#else
+ aiComponent_NORMALS = 0x2u,
+#endif
+
+ /** Tangents and bitangents go always together ... */
+#ifdef SWIG
+ aiComponent_TANGENTS_AND_BITANGENTS = 0x4,
+#else
+ aiComponent_TANGENTS_AND_BITANGENTS = 0x4u,
+#endif
+
+ /** ALL color sets
+ * Use aiComponent_COLORn(N) to specify the N'th set */
+ aiComponent_COLORS = 0x8,
+
+ /** ALL texture UV sets
+ * aiComponent_TEXCOORDn(N) to specify the N'th set */
+ aiComponent_TEXCOORDS = 0x10,
+
+ /** Removes all bone weights from all meshes.
+ * The scenegraph nodes corresponding to the bones are NOT removed.
+ * use the #aiProcess_OptimizeGraph step to do this */
+ aiComponent_BONEWEIGHTS = 0x20,
+
+ /** Removes all node animations (aiScene::mAnimations).
+ * The corresponding scenegraph nodes are NOT removed.
+ * use the #aiProcess_OptimizeGraph step to do this */
+ aiComponent_ANIMATIONS = 0x40,
+
+ /** Removes all embedded textures (aiScene::mTextures) */
+ aiComponent_TEXTURES = 0x80,
+
+ /** Removes all light sources (aiScene::mLights).
+ * The corresponding scenegraph nodes are NOT removed.
+ * use the #aiProcess_OptimizeGraph step to do this */
+ aiComponent_LIGHTS = 0x100,
+
+ /** Removes all cameras (aiScene::mCameras).
+ * The corresponding scenegraph nodes are NOT removed.
+ * use the #aiProcess_OptimizeGraph step to do this */
+ aiComponent_CAMERAS = 0x200,
+
+ /** Removes all meshes (aiScene::mMeshes). */
+ aiComponent_MESHES = 0x400,
+
+ /** Removes all materials. One default material will
+ * be generated, so aiScene::mNumMaterials will be 1. */
+ aiComponent_MATERIALS = 0x800,
+
+
+ /** This value is not used. It is just there to force the
+ * compiler to map this enum to a 32 Bit integer. */
+#ifndef SWIG
+ _aiComponent_Force32Bit = 0x9fffffff
+#endif
+};
+
+// Remove a specific color channel 'n'
+#define aiComponent_COLORSn(n) (1u << (n+20u))
+
+// Remove a specific UV channel 'n'
+#define aiComponent_TEXCOORDSn(n) (1u << (n+25u))
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_RemoveComponent step:
+ * Specifies the parts of the data structure to be removed.
+ *
+ * See the documentation to this step for further details. The property
+ * is expected to be an integer, a bitwise combination of the
+ * #aiComponent flags defined above in this header. The default
+ * value is 0. Important: if no valid mesh is remaining after the
+ * step has been executed (e.g you thought it was funny to specify ALL
+ * of the flags defined above) the import FAILS. Mainly because there is
+ * no data to work on anymore ...
+ */
+#define AI_CONFIG_PP_RVC_FLAGS \
+ "PP_RVC_FLAGS"
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_SortByPType step:
+ * Specifies which primitive types are removed by the step.
+ *
+ * This is a bitwise combination of the aiPrimitiveType flags.
+ * Specifying all of them is illegal, of course. A typical use would
+ * be to exclude all line and point meshes from the import. This
+ * is an integer property, its default value is 0.
+ */
+#define AI_CONFIG_PP_SBP_REMOVE \
+ "PP_SBP_REMOVE"
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_FindInvalidData step:
+ * Specifies the floating-point accuracy for animation values. The step
+ * checks for animation tracks where all frame values are absolutely equal
+ * and removes them. This tweakable controls the epsilon for floating-point
+ * comparisons - two keys are considered equal if the invariant
+ * abs(n0-n1)>epsilon holds true for all vector respectively quaternion
+ * components. The default value is 0.f - comparisons are exact then.
+ */
+#define AI_CONFIG_PP_FID_ANIM_ACCURACY \
+ "PP_FID_ANIM_ACCURACY"
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_FindInvalidData step:
+ * Set to true to ignore texture coordinates. This may be useful if you have
+ * to assign different kind of textures like one for the summer or one for the winter.
+ */
+#define AI_CONFIG_PP_FID_IGNORE_TEXTURECOORDS \
+ "PP_FID_IGNORE_TEXTURECOORDS"
+
+// TransformUVCoords evaluates UV scalings
+#define AI_UVTRAFO_SCALING 0x1
+
+// TransformUVCoords evaluates UV rotations
+#define AI_UVTRAFO_ROTATION 0x2
+
+// TransformUVCoords evaluates UV translation
+#define AI_UVTRAFO_TRANSLATION 0x4
+
+// Everything baked together -> default value
+#define AI_UVTRAFO_ALL (AI_UVTRAFO_SCALING | AI_UVTRAFO_ROTATION | AI_UVTRAFO_TRANSLATION)
+
+// ---------------------------------------------------------------------------
+/** @brief Input parameter to the #aiProcess_TransformUVCoords step:
+ * Specifies which UV transformations are evaluated.
+ *
+ * This is a bitwise combination of the AI_UVTRAFO_XXX flags (integer
+ * property, of course). By default all transformations are enabled
+ * (AI_UVTRAFO_ALL).
+ */
+#define AI_CONFIG_PP_TUV_EVALUATE \
+ "PP_TUV_EVALUATE"
+
+// ---------------------------------------------------------------------------
+/** @brief A hint to assimp to favour speed against import quality.
+ *
+ * Enabling this option may result in faster loading, but it needn't.
+ * It represents just a hint to loaders and post-processing steps to use
+ * faster code paths, if possible.
+ * This property is expected to be an integer, != 0 stands for true.
+ * The default value is 0.
+ */
+#define AI_CONFIG_FAVOUR_SPEED \
+ "FAVOUR_SPEED"
+
+
+// ###########################################################################
+// IMPORTER SETTINGS
+// Various stuff to fine-tune the behaviour of specific importer plugins.
+// ###########################################################################
+
+// ---------------------------------------------------------------------------
+/** @brief Importers which parse JSON may use this to obtain a pointer to a
+ * rapidjson::IRemoteSchemaDocumentProvider.
+ *
+ * The default value is nullptr
+ * Property type: void*
+ */
+#define AI_CONFIG_IMPORT_SCHEMA_DOCUMENT_PROVIDER \
+ "IMPORT_SCHEMA_DOCUMENT_PROVIDER"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will merge all geometry layers present
+ * in the source file or take only the first.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_ALL_GEOMETRY_LAYERS \
+ "IMPORT_FBX_READ_ALL_GEOMETRY_LAYERS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read all materials present in the
+ * source file or take only the referenced materials.
+ *
+ * This is void unless IMPORT_FBX_READ_MATERIALS=1.
+ *
+ * The default value is false (0)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_ALL_MATERIALS \
+ "IMPORT_FBX_READ_ALL_MATERIALS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read materials.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_MATERIALS \
+ "IMPORT_FBX_READ_MATERIALS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read embedded textures.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_TEXTURES \
+ "IMPORT_FBX_READ_TEXTURES"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read cameras.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_CAMERAS \
+ "IMPORT_FBX_READ_CAMERAS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read light sources.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_LIGHTS \
+ "IMPORT_FBX_READ_LIGHTS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read animations.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_ANIMATIONS \
+ "IMPORT_FBX_READ_ANIMATIONS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will read weights.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_READ_WEIGHTS \
+ "IMPORT_FBX_READ_WEIGHTS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will act in strict mode in which only
+ * FBX 2013 is supported and any other sub formats are rejected. FBX 2013
+ * is the primary target for the importer, so this format is best
+ * supported and well-tested.
+ *
+ * The default value is false (0)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_STRICT_MODE \
+ "IMPORT_FBX_STRICT_MODE"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will preserve pivot points for
+ * transformations (as extra nodes). If set to false, pivots and offsets
+ * will be evaluated whenever possible.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_PRESERVE_PIVOTS \
+ "IMPORT_FBX_PRESERVE_PIVOTS"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the importer will drop empty animation curves or
+ * animation curves which match the bind pose transformation over their
+ * entire defined range.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_OPTIMIZE_EMPTY_ANIMATION_CURVES \
+ "IMPORT_FBX_OPTIMIZE_EMPTY_ANIMATION_CURVES"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the fbx importer will use the legacy embedded texture naming.
+ *
+ * The default value is false (0)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING \
+ "AI_CONFIG_IMPORT_FBX_EMBEDDED_TEXTURES_LEGACY_NAMING"
+
+// ---------------------------------------------------------------------------
+/** @brief Set wether the importer shall not remove empty bones.
+ *
+ * Empty bone are often used to define connections for other models.
+ */
+#define AI_CONFIG_IMPORT_REMOVE_EMPTY_BONES \
+ "AI_CONFIG_IMPORT_REMOVE_EMPTY_BONES"
+
+
+// ---------------------------------------------------------------------------
+/** @brief Set wether the FBX importer shall convert the unit from cm to m.
+ */
+#define AI_CONFIG_FBX_CONVERT_TO_M \
+ "AI_CONFIG_FBX_CONVERT_TO_M"
+
+// ---------------------------------------------------------------------------
+/** @brief Set the vertex animation keyframe to be imported
+ *
+ * ASSIMP does not support vertex keyframes (only bone animation is supported).
+ * The library reads only one frame of models with vertex animations.
+ * By default this is the first frame.
+ * \note The default value is 0. This option applies to all importers.
+ * However, it is also possible to override the global setting
+ * for a specific loader. You can use the AI_CONFIG_IMPORT_XXX_KEYFRAME
+ * options (where XXX is a placeholder for the file format for which you
+ * want to override the global setting).
+ * Property type: integer.
+ */
+#define AI_CONFIG_IMPORT_GLOBAL_KEYFRAME "IMPORT_GLOBAL_KEYFRAME"
+
+#define AI_CONFIG_IMPORT_MD3_KEYFRAME "IMPORT_MD3_KEYFRAME"
+#define AI_CONFIG_IMPORT_MD2_KEYFRAME "IMPORT_MD2_KEYFRAME"
+#define AI_CONFIG_IMPORT_MDL_KEYFRAME "IMPORT_MDL_KEYFRAME"
+#define AI_CONFIG_IMPORT_MDC_KEYFRAME "IMPORT_MDC_KEYFRAME"
+#define AI_CONFIG_IMPORT_SMD_KEYFRAME "IMPORT_SMD_KEYFRAME"
+#define AI_CONFIG_IMPORT_UNREAL_KEYFRAME "IMPORT_UNREAL_KEYFRAME"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the MDL (HL1) importer will read animations.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_MDL_HL1_READ_ANIMATIONS "IMPORT_MDL_HL1_READ_ANIMATIONS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the MDL (HL1) importer will read animation events.
+ * \note This property requires AI_CONFIG_IMPORT_MDL_HL1_READ_ANIMATIONS to be set to true.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_MDL_HL1_READ_ANIMATION_EVENTS "IMPORT_MDL_HL1_READ_ANIMATION_EVENTS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the MDL (HL1) importer will read blend controllers.
+ * \note This property requires AI_CONFIG_IMPORT_MDL_HL1_READ_ANIMATIONS to be set to true.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_MDL_HL1_READ_BLEND_CONTROLLERS "IMPORT_MDL_HL1_READ_BLEND_CONTROLLERS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the MDL (HL1) importer will read sequence transition graph.
+ * \note This property requires AI_CONFIG_IMPORT_MDL_HL1_READ_ANIMATIONS to be set to true.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_MDL_HL1_READ_SEQUENCE_TRANSITIONS "IMPORT_MDL_HL1_READ_SEQUENCE_TRANSITIONS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the MDL (HL1) importer will read attachments info.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_MDL_HL1_READ_ATTACHMENTS "IMPORT_MDL_HL1_READ_ATTACHMENTS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the MDL (HL1) importer will read bone controllers info.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_MDL_HL1_READ_BONE_CONTROLLERS "IMPORT_MDL_HL1_READ_BONE_CONTROLLERS"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the MDL (HL1) importer will read hitboxes info.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_MDL_HL1_READ_HITBOXES "IMPORT_MDL_HL1_READ_HITBOXES"
+
+// ---------------------------------------------------------------------------
+/** @brief Set whether the MDL (HL1) importer will read miscellaneous global model info.
+ *
+ * The default value is true (1)
+ * Property type: bool
+ */
+#define AI_CONFIG_IMPORT_MDL_HL1_READ_MISC_GLOBAL_INFO "IMPORT_MDL_HL1_READ_MISC_GLOBAL_INFO"
+
+// ---------------------------------------------------------------------------
+/** Smd load multiple animations
+ *
+ * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_SMD_LOAD_ANIMATION_LIST "IMPORT_SMD_LOAD_ANIMATION_LIST"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the AC loader to collect all surfaces which have the
+ * "Backface cull" flag set in separate meshes.
+ *
+ * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_AC_SEPARATE_BFCULL \
+ "IMPORT_AC_SEPARATE_BFCULL"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures whether the AC loader evaluates subdivision surfaces (
+ * indicated by the presence of the 'subdiv' attribute in the file). By
+ * default, Assimp performs the subdivision using the standard
+ * Catmull-Clark algorithm
+ *
+ * * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_AC_EVAL_SUBDIVISION \
+ "IMPORT_AC_EVAL_SUBDIVISION"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the UNREAL 3D loader to separate faces with different
+ * surface flags (e.g. two-sided vs. single-sided).
+ *
+ * * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_UNREAL_HANDLE_FLAGS \
+ "UNREAL_HANDLE_FLAGS"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the terragen import plugin to compute uv's for
+ * terrains, if not given. Furthermore a default texture is assigned.
+ *
+ * UV coordinates for terrains are so simple to compute that you'll usually
+ * want to compute them on your own, if you need them. This option is intended
+ * for model viewers which want to offer an easy way to apply textures to
+ * terrains.
+ * * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_TER_MAKE_UVS \
+ "IMPORT_TER_MAKE_UVS"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the ASE loader to always reconstruct normal vectors
+ * basing on the smoothing groups loaded from the file.
+ *
+ * Some ASE files have carry invalid normals, other don't.
+ * * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_ASE_RECONSTRUCT_NORMALS \
+ "IMPORT_ASE_RECONSTRUCT_NORMALS"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the M3D loader to detect and process multi-part
+ * Quake player models.
+ *
+ * These models usually consist of 3 files, lower.md3, upper.md3 and
+ * head.md3. If this property is set to true, Assimp will try to load and
+ * combine all three files if one of them is loaded.
+ * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_MD3_HANDLE_MULTIPART \
+ "IMPORT_MD3_HANDLE_MULTIPART"
+
+// ---------------------------------------------------------------------------
+/** @brief Tells the MD3 loader which skin files to load.
+ *
+ * When loading MD3 files, Assimp checks whether a file
+ * [md3_file_name]_[skin_name].skin is existing. These files are used by
+ * Quake III to be able to assign different skins (e.g. red and blue team)
+ * to models. 'default', 'red', 'blue' are typical skin names.
+ * Property type: String. Default value: "default".
+ */
+#define AI_CONFIG_IMPORT_MD3_SKIN_NAME \
+ "IMPORT_MD3_SKIN_NAME"
+
+// ---------------------------------------------------------------------------
+/** @brief Specify if to try load Quake 3 shader files. This also controls
+ * original surface name handling: when disabled it will be used unchanged.
+ *
+ * Property type: bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_MD3_LOAD_SHADERS \
+ "IMPORT_MD3_LOAD_SHADERS"
+
+// ---------------------------------------------------------------------------
+/** @brief Specify the Quake 3 shader file to be used for a particular
+ * MD3 file. This can also be a search path.
+ *
+ * By default Assimp's behaviour is as follows: If a MD3 file
+ * <tt>any_path/models/any_q3_subdir/model_name/file_name.md3</tt> is
+ * loaded, the library tries to locate the corresponding shader file in
+ * <tt>any_path/scripts/model_name.shader</tt>. This property overrides this
+ * behaviour. It can either specify a full path to the shader to be loaded
+ * or alternatively the path (relative or absolute) to the directory where
+ * the shaders for all MD3s to be loaded reside. Assimp attempts to open
+ * <tt>IMPORT_MD3_SHADER_SRC/model_name.shader</tt> first, <tt>IMPORT_MD3_SHADER_SRC/file_name.shader</tt>
+ * is the fallback file. Note that IMPORT_MD3_SHADER_SRC should have a terminal (back)slash.
+ * Property type: String. Default value: n/a.
+ */
+#define AI_CONFIG_IMPORT_MD3_SHADER_SRC \
+ "IMPORT_MD3_SHADER_SRC"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the LWO loader to load just one layer from the model.
+ *
+ * LWO files consist of layers and in some cases it could be useful to load
+ * only one of them. This property can be either a string - which specifies
+ * the name of the layer - or an integer - the index of the layer. If the
+ * property is not set the whole LWO model is loaded. Loading fails if the
+ * requested layer is not available. The layer index is zero-based and the
+ * layer name may not be empty.<br>
+ * Property type: Integer. Default value: all layers are loaded.
+ */
+#define AI_CONFIG_IMPORT_LWO_ONE_LAYER_ONLY \
+ "IMPORT_LWO_ONE_LAYER_ONLY"
+
+// ---------------------------------------------------------------------------
+/** @brief Configures the MD5 loader to not load the MD5ANIM file for
+ * a MD5MESH file automatically.
+ *
+ * The default strategy is to look for a file with the same name but the
+ * MD5ANIM extension in the same directory. If it is found, it is loaded
+ * and combined with the MD5MESH file. This configuration option can be
+ * used to disable this behaviour.
+ *
+ * * Property type: bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_MD5_NO_ANIM_AUTOLOAD \
+ "IMPORT_MD5_NO_ANIM_AUTOLOAD"
+
+// ---------------------------------------------------------------------------
+/** @brief Defines the begin of the time range for which the LWS loader
+ * evaluates animations and computes aiNodeAnim's.
+ *
+ * Assimp provides full conversion of LightWave's envelope system, including
+ * pre and post conditions. The loader computes linearly subsampled animation
+ * chanels with the frame rate given in the LWS file. This property defines
+ * the start time. Note: animation channels are only generated if a node
+ * has at least one envelope with more tan one key assigned. This property.
+ * is given in frames, '0' is the first frame. By default, if this property
+ * is not set, the importer takes the animation start from the input LWS
+ * file ('FirstFrame' line)<br>
+ * Property type: Integer. Default value: taken from file.
+ *
+ * @see AI_CONFIG_IMPORT_LWS_ANIM_END - end of the imported time range
+ */
+#define AI_CONFIG_IMPORT_LWS_ANIM_START \
+ "IMPORT_LWS_ANIM_START"
+#define AI_CONFIG_IMPORT_LWS_ANIM_END \
+ "IMPORT_LWS_ANIM_END"
+
+// ---------------------------------------------------------------------------
+/** @brief Defines the output frame rate of the IRR loader.
+ *
+ * IRR animations are difficult to convert for Assimp and there will
+ * always be a loss of quality. This setting defines how many keys per second
+ * are returned by the converter.<br>
+ * Property type: integer. Default value: 100
+ */
+#define AI_CONFIG_IMPORT_IRR_ANIM_FPS \
+ "IMPORT_IRR_ANIM_FPS"
+
+// ---------------------------------------------------------------------------
+/** @brief Ogre Importer will try to find referenced materials from this file.
+ *
+ * Ogre meshes reference with material names, this does not tell Assimp the file
+ * where it is located in. Assimp will try to find the source file in the following
+ * order: <material-name>.material, <mesh-filename-base>.material and
+ * lastly the material name defined by this config property.
+ * <br>
+ * Property type: String. Default value: Scene.material.
+ */
+#define AI_CONFIG_IMPORT_OGRE_MATERIAL_FILE \
+ "IMPORT_OGRE_MATERIAL_FILE"
+
+// ---------------------------------------------------------------------------
+/** @brief Ogre Importer detect the texture usage from its filename.
+ *
+ * Ogre material texture units do not define texture type, the textures usage
+ * depends on the used shader or Ogre's fixed pipeline. If this config property
+ * is true Assimp will try to detect the type from the textures filename postfix:
+ * _n, _nrm, _nrml, _normal, _normals and _normalmap for normal map, _s, _spec,
+ * _specular and _specularmap for specular map, _l, _light, _lightmap, _occ
+ * and _occlusion for light map, _disp and _displacement for displacement map.
+ * The matching is case insensitive. Post fix is taken between the last
+ * underscore and the last period.
+ * Default behavior is to detect type from lower cased texture unit name by
+ * matching against: normalmap, specularmap, lightmap and displacementmap.
+ * For both cases if no match is found aiTextureType_DIFFUSE is used.
+ * <br>
+ * Property type: Bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_OGRE_TEXTURETYPE_FROM_FILENAME \
+ "IMPORT_OGRE_TEXTURETYPE_FROM_FILENAME"
+
+ /** @brief Specifies whether the Android JNI asset extraction is supported.
+ *
+ * Turn on this option if you want to manage assets in native
+ * Android application without having to keep the internal directory and asset
+ * manager pointer.
+ */
+ #define AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT "AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the IFC loader skips over IfcSpace elements.
+ *
+ * IfcSpace elements (and their geometric representations) are used to
+ * represent, well, free space in a building storey.<br>
+ * Property type: Bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_IFC_SKIP_SPACE_REPRESENTATIONS "IMPORT_IFC_SKIP_SPACE_REPRESENTATIONS"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the IFC loader will use its own, custom triangulation
+ * algorithm to triangulate wall and floor meshes.
+ *
+ * If this property is set to false, walls will be either triangulated by
+ * #aiProcess_Triangulate or will be passed through as huge polygons with
+ * faked holes (i.e. holes that are connected with the outer boundary using
+ * a dummy edge). It is highly recommended to set this property to true
+ * if you want triangulated data because #aiProcess_Triangulate is known to
+ * have problems with the kind of polygons that the IFC loader spits out for
+ * complicated meshes.
+ * Property type: Bool. Default value: true.
+ */
+#define AI_CONFIG_IMPORT_IFC_CUSTOM_TRIANGULATION "IMPORT_IFC_CUSTOM_TRIANGULATION"
+
+// ---------------------------------------------------------------------------
+/** @brief Set the tessellation conic angle for IFC smoothing curves.
+ *
+ * This is used by the IFC importer to determine the tessellation parameter
+ * for smoothing curves.
+ * @note The default value is AI_IMPORT_IFC_DEFAULT_SMOOTHING_ANGLE and the
+ * accepted values are in range [5.0, 120.0].
+ * Property type: Float.
+ */
+#define AI_CONFIG_IMPORT_IFC_SMOOTHING_ANGLE "IMPORT_IFC_SMOOTHING_ANGLE"
+
+// default value for AI_CONFIG_IMPORT_IFC_SMOOTHING_ANGLE
+#if (!defined AI_IMPORT_IFC_DEFAULT_SMOOTHING_ANGLE)
+# define AI_IMPORT_IFC_DEFAULT_SMOOTHING_ANGLE 10.0f
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Set the tessellation for IFC cylindrical shapes.
+ *
+ * This is used by the IFC importer to determine the tessellation parameter
+ * for cylindrical shapes, i.e. the number of segments used to approximate a circle.
+ * @note The default value is AI_IMPORT_IFC_DEFAULT_CYLINDRICAL_TESSELLATION and the
+ * accepted values are in range [3, 180].
+ * Property type: Integer.
+ */
+#define AI_CONFIG_IMPORT_IFC_CYLINDRICAL_TESSELLATION "IMPORT_IFC_CYLINDRICAL_TESSELLATION"
+
+// default value for AI_CONFIG_IMPORT_IFC_CYLINDRICAL_TESSELLATION
+#if (!defined AI_IMPORT_IFC_DEFAULT_CYLINDRICAL_TESSELLATION)
+# define AI_IMPORT_IFC_DEFAULT_CYLINDRICAL_TESSELLATION 32
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the Collada loader will ignore the provided up direction.
+ *
+ * If this property is set to true, the up direction provided in the file header will
+ * be ignored and the file will be loaded as is.
+ * Property type: Bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_COLLADA_IGNORE_UP_DIRECTION "IMPORT_COLLADA_IGNORE_UP_DIRECTION"
+
+// ---------------------------------------------------------------------------
+/** @brief Specifies whether the Collada loader should use Collada names.
+ *
+ * If this property is set to true, the Collada names will be used as the node and
+ * mesh names. The default is to use the id tag (resp. sid tag, if no id tag is present)
+ * instead.
+ * Property type: Bool. Default value: false.
+ */
+#define AI_CONFIG_IMPORT_COLLADA_USE_COLLADA_NAMES "IMPORT_COLLADA_USE_COLLADA_NAMES"
+
+// ---------- All the Export defines ------------
+
+/** @brief Specifies the xfile use double for real values of float
+ *
+ * Property type: Bool. Default value: false.
+ */
+
+#define AI_CONFIG_EXPORT_XFILE_64BIT "EXPORT_XFILE_64BIT"
+
+/** @brief Specifies whether the assimp export shall be able to export point clouds
+ *
+ * When this flag is not defined the render data has to contain valid faces.
+ * Point clouds are only a collection of vertices which have nor spatial organization
+ * by a face and the validation process will remove them. Enabling this feature will
+ * switch off the flag and enable the functionality to export pure point clouds.
+ */
+#define AI_CONFIG_EXPORT_POINT_CLOUDS "EXPORT_POINT_CLOUDS"
+
+/**
+ * @brief Specifies the blob name, assimp uses for exporting.
+ *
+ * Some formats require auxiliary files to be written, that need to be linked back into
+ * the original file. For example, OBJ files export materials to a separate MTL file and
+ * use the `mtllib` keyword to reference this file.
+ *
+ * When exporting blobs using #ExportToBlob, assimp does not know the name of the blob
+ * file and thus outputs `mtllib $blobfile.mtl`, which might not be desired, since the
+ * MTL file might be called differently.
+ *
+ * This property can be used to give the exporter a hint on how to use the magic
+ * `$blobfile` keyword. If the exporter detects the keyword and is provided with a name
+ * for the blob, it instead uses this name.
+ */
+#define AI_CONFIG_EXPORT_BLOB_NAME "EXPORT_BLOB_NAME"
+
+/**
+ * @brief Specifies a gobal key factor for scale, float value
+ */
+#define AI_CONFIG_GLOBAL_SCALE_FACTOR_KEY "GLOBAL_SCALE_FACTOR"
+
+#if (!defined AI_CONFIG_GLOBAL_SCALE_FACTOR_DEFAULT)
+# define AI_CONFIG_GLOBAL_SCALE_FACTOR_DEFAULT 1.0f
+#endif // !! AI_DEBONE_THRESHOLD
+
+#define AI_CONFIG_APP_SCALE_KEY "APP_SCALE_FACTOR"
+
+#if (!defined AI_CONFIG_APP_SCALE_KEY)
+# define AI_CONFIG_APP_SCALE_KEY 1.0
+#endif // AI_CONFIG_APP_SCALE_KEY
+
+
+// ---------- All the Build/Compile-time defines ------------
+
+/** @brief Specifies if double precision is supported inside assimp
+ *
+ * Property type: Bool. Default value: undefined.
+ */
+
+#cmakedefine ASSIMP_DOUBLE_PRECISION 1
+
+#endif // !! AI_CONFIG_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/defs.h b/src/mesh/assimp-master/include/assimp/defs.h
new file mode 100644
index 0000000..0626a8d
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/defs.h
@@ -0,0 +1,336 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file defs.h
+ * @brief Assimp build configuration setup. See the notes in the comment
+ * blocks to find out how to customize _your_ Assimp build.
+ */
+
+#pragma once
+#ifndef AI_DEFINES_H_INC
+#define AI_DEFINES_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/config.h>
+
+//////////////////////////////////////////////////////////////////////////
+/* Define ASSIMP_BUILD_NO_XX_IMPORTER to disable a specific
+ * file format loader. The loader is be excluded from the
+ * build in this case. 'XX' stands for the most common file
+ * extension of the file format. E.g.:
+ * ASSIMP_BUILD_NO_X_IMPORTER disables the X loader.
+ *
+ * If you're unsure about that, take a look at the implementation of the
+ * import plugin you wish to disable. You'll find the right define in the
+ * first lines of the corresponding unit.
+ *
+ * Other (mixed) configuration switches are listed here:
+ * ASSIMP_BUILD_NO_COMPRESSED_X
+ * - Disable support for compressed X files (zip)
+ * ASSIMP_BUILD_NO_COMPRESSED_BLEND
+ * - Disable support for compressed Blender files (zip)
+ * ASSIMP_BUILD_NO_COMPRESSED_IFC
+ * - Disable support for IFCZIP files (unzip)
+ */
+//////////////////////////////////////////////////////////////////////////
+
+#ifndef ASSIMP_BUILD_NO_COMPRESSED_X
+#define ASSIMP_BUILD_NEED_Z_INFLATE
+#endif
+
+#ifndef ASSIMP_BUILD_NO_COMPRESSED_BLEND
+#define ASSIMP_BUILD_NEED_Z_INFLATE
+#endif
+
+#ifndef ASSIMP_BUILD_NO_COMPRESSED_IFC
+#define ASSIMP_BUILD_NEED_Z_INFLATE
+#define ASSIMP_BUILD_NEED_UNZIP
+#endif
+
+#ifndef ASSIMP_BUILD_NO_Q3BSP_IMPORTER
+#define ASSIMP_BUILD_NEED_Z_INFLATE
+#define ASSIMP_BUILD_NEED_UNZIP
+#endif
+
+// 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*/
+
+//////////////////////////////////////////////////////////////////////////
+/* Define ASSIMP_BUILD_NO_XX_PROCESS to disable a specific
+ * post processing step. This is the current list of process names ('XX'):
+ * CALCTANGENTS
+ * JOINVERTICES
+ * TRIANGULATE
+ * DROPFACENORMALS
+ * GENFACENORMALS
+ * GENVERTEXNORMALS
+ * REMOVEVC
+ * SPLITLARGEMESHES
+ * PRETRANSFORMVERTICES
+ * LIMITBONEWEIGHTS
+ * VALIDATEDS
+ * IMPROVECACHELOCALITY
+ * FIXINFACINGNORMALS
+ * REMOVE_REDUNDANTMATERIALS
+ * OPTIMIZEGRAPH
+ * SORTBYPTYPE
+ * FINDINVALIDDATA
+ * TRANSFORMTEXCOORDS
+ * GENUVCOORDS
+ * ENTITYMESHBUILDER
+ * EMBEDTEXTURES
+ * MAKELEFTHANDED
+ * FLIPUVS
+ * FLIPWINDINGORDER
+ * OPTIMIZEMESHES
+ * OPTIMIZEANIMS
+ * OPTIMIZEGRAPH
+ * GENENTITYMESHES
+ * FIXTEXTUREPATHS
+ * GENBOUNDINGBOXES */
+//////////////////////////////////////////////////////////////////////////
+
+#ifdef _WIN32
+#undef ASSIMP_API
+//////////////////////////////////////////////////////////////////////////
+/* Define 'ASSIMP_BUILD_DLL_EXPORT' to build a DLL of the library */
+//////////////////////////////////////////////////////////////////////////
+#ifdef ASSIMP_BUILD_DLL_EXPORT
+#define ASSIMP_API __declspec(dllexport)
+#define ASSIMP_API_WINONLY __declspec(dllexport)
+
+//////////////////////////////////////////////////////////////////////////
+/* Define 'ASSIMP_DLL' before including Assimp to link to ASSIMP in
+ * an external DLL under Windows. Default is static linkage. */
+//////////////////////////////////////////////////////////////////////////
+#elif (defined ASSIMP_DLL)
+#define ASSIMP_API __declspec(dllimport)
+#define ASSIMP_API_WINONLY __declspec(dllimport)
+#else
+#define ASSIMP_API
+#define ASSIMP_API_WINONLY
+#endif
+#elif defined(SWIG)
+/* Do nothing, the relevant defines are all in AssimpSwigPort.i */
+#else
+#define ASSIMP_API __attribute__((visibility("default")))
+#define ASSIMP_API_WINONLY
+#endif // _WIN32
+
+#ifdef _MSC_VER
+ #pragma warning(disable : 4521 4512 4714 4127 4351 4510)
+ #ifdef ASSIMP_BUILD_DLL_EXPORT
+ #pragma warning(disable : 4251)
+ #endif
+ /* Force the compiler to inline a function, if possible */
+ #define AI_FORCE_INLINE inline
+
+ /* Tells the compiler that a function never returns. Used in code analysis
+ * to skip dead paths (e.g. after an assertion evaluated to false). */
+ #define AI_WONT_RETURN __declspec(noreturn)
+#elif defined(SWIG)
+ /* Do nothing, the relevant defines are all in AssimpSwigPort.i */
+#else
+ #define AI_WONT_RETURN
+ #define AI_FORCE_INLINE inline
+#endif // (defined _MSC_VER)
+
+#ifdef __GNUC__
+# define AI_WONT_RETURN_SUFFIX __attribute__((noreturn))
+#else
+# define AI_WONT_RETURN_SUFFIX
+#endif // (defined __clang__)
+
+#ifdef __cplusplus
+/* No explicit 'struct' and 'enum' tags for C++, this keeps showing up
+ * in doxydocs.
+ */
+#define C_STRUCT
+#define C_ENUM
+#else
+//////////////////////////////////////////////////////////////////////////
+/* To build the documentation, make sure ASSIMP_DOXYGEN_BUILD
+ * is defined by Doxygen's preprocessor. The corresponding
+ * entries in the DOXYFILE are: */
+//////////////////////////////////////////////////////////////////////////
+#if 0
+ ENABLE_PREPROCESSING = YES
+ MACRO_EXPANSION = YES
+ EXPAND_ONLY_PREDEF = YES
+ SEARCH_INCLUDES = YES
+ INCLUDE_PATH =
+ INCLUDE_FILE_PATTERNS =
+ PREDEFINED = ASSIMP_DOXYGEN_BUILD=1
+ EXPAND_AS_DEFINED = C_STRUCT C_ENUM
+ SKIP_FUNCTION_MACROS = YES
+#endif
+//////////////////////////////////////////////////////////////////////////
+/* Doxygen gets confused if we use c-struct typedefs to avoid
+ * the explicit 'struct' notation. This trick here has the same
+ * effect as the TYPEDEF_HIDES_STRUCT option, but we don't need
+ * to typedef all structs/enums. */
+//////////////////////////////////////////////////////////////////////////
+#if (defined ASSIMP_DOXYGEN_BUILD)
+#define C_STRUCT
+#define C_ENUM
+#else
+#define C_STRUCT struct
+#define C_ENUM enum
+#endif
+#endif
+
+#if (defined(__BORLANDC__) || defined(__BCPLUSPLUS__))
+#error Currently, Borland is unsupported. Feel free to port Assimp.
+#endif
+
+//////////////////////////////////////////////////////////////////////////
+/* Define ASSIMP_BUILD_SINGLETHREADED to compile assimp
+ * without threading support. The library doesn't utilize
+ * threads then and is itself not threadsafe. */
+//////////////////////////////////////////////////////////////////////////
+#ifndef ASSIMP_BUILD_SINGLETHREADED
+#define ASSIMP_BUILD_SINGLETHREADED
+#endif
+
+#if defined(_DEBUG) || !defined(NDEBUG)
+#define ASSIMP_BUILD_DEBUG
+#endif
+
+//////////////////////////////////////////////////////////////////////////
+/* Define ASSIMP_DOUBLE_PRECISION to compile assimp
+ * with double precision support (64-bit). */
+//////////////////////////////////////////////////////////////////////////
+
+#ifdef ASSIMP_DOUBLE_PRECISION
+typedef double ai_real;
+typedef signed long long int ai_int;
+typedef unsigned long long int ai_uint;
+#ifndef ASSIMP_AI_REAL_TEXT_PRECISION
+#define ASSIMP_AI_REAL_TEXT_PRECISION 17
+#endif // ASSIMP_AI_REAL_TEXT_PRECISION
+#else // ASSIMP_DOUBLE_PRECISION
+typedef float ai_real;
+typedef signed int ai_int;
+typedef unsigned int ai_uint;
+#ifndef ASSIMP_AI_REAL_TEXT_PRECISION
+#define ASSIMP_AI_REAL_TEXT_PRECISION 9
+#endif // ASSIMP_AI_REAL_TEXT_PRECISION
+#endif // ASSIMP_DOUBLE_PRECISION
+
+//////////////////////////////////////////////////////////////////////////
+/* Useful constants */
+//////////////////////////////////////////////////////////////////////////
+
+/* This is PI. Hi PI. */
+#define AI_MATH_PI (3.141592653589793238462643383279)
+#define AI_MATH_TWO_PI (AI_MATH_PI * 2.0)
+#define AI_MATH_HALF_PI (AI_MATH_PI * 0.5)
+
+/* And this is to avoid endless casts to float */
+#define AI_MATH_PI_F (3.1415926538f)
+#define AI_MATH_TWO_PI_F (AI_MATH_PI_F * 2.0f)
+#define AI_MATH_HALF_PI_F (AI_MATH_PI_F * 0.5f)
+
+/* Tiny macro to convert from radians to degrees and back */
+#define AI_DEG_TO_RAD(x) ((x) * (ai_real) 0.0174532925)
+#define AI_RAD_TO_DEG(x) ((x) * (ai_real) 57.2957795)
+
+/* Numerical limits */
+static const ai_real ai_epsilon = (ai_real) 1e-6;
+
+/* Support for big-endian builds */
+#if defined(__BYTE_ORDER__)
+#if (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
+#if !defined(__BIG_ENDIAN__)
+#define __BIG_ENDIAN__
+#endif
+#else /* little endian */
+#if defined(__BIG_ENDIAN__)
+#undef __BIG_ENDIAN__
+#endif
+#endif
+#endif
+#if defined(__BIG_ENDIAN__)
+#define AI_BUILD_BIG_ENDIAN
+#endif
+
+/**
+ * To avoid running out of memory
+ * This can be adjusted for specific use cases
+ * It's NOT a total limit, just a limit for individual allocations
+ */
+#define AI_MAX_ALLOC(type) ((256U * 1024 * 1024) / sizeof(type))
+
+#ifndef _MSC_VER
+#if __cplusplus >= 201103L // C++11
+#define AI_NO_EXCEPT noexcept
+#else
+#define AI_NO_EXCEPT
+#endif
+#else
+#if (_MSC_VER >= 1915)
+#define AI_NO_EXCEPT noexcept
+#else
+#define AI_NO_EXCEPT
+#endif
+#endif // _MSC_VER
+
+/**
+ * Helper macro to set a pointer to NULL in debug builds
+ */
+#if (defined ASSIMP_BUILD_DEBUG)
+#define AI_DEBUG_INVALIDATE_PTR(x) x = NULL;
+#else
+#define AI_DEBUG_INVALIDATE_PTR(x)
+#endif
+
+#define AI_COUNT_OF(X) (sizeof(X) / sizeof((X)[0]))
+
+#endif // !! AI_DEFINES_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/fast_atof.h b/src/mesh/assimp-master/include/assimp/fast_atof.h
new file mode 100644
index 0000000..43bbbff
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/fast_atof.h
@@ -0,0 +1,385 @@
+#pragma once
+
+// Copyright (C) 2002-2007 Nikolaus Gebhardt
+// This file is part of the "Irrlicht Engine" and the "irrXML" project.
+// For conditions of distribution and use, see copyright notice in irrlicht.h and irrXML.h
+
+// ------------------------------------------------------------------------------------
+// Original description: (Schrompf)
+// Adapted to the ASSIMP library because the builtin atof indeed takes AGES to parse a
+// float inside a large string. Before parsing, it does a strlen on the given point.
+// Changes:
+// 22nd October 08 (Aramis_acg): Added temporary cast to double, added strtoul10_64
+// to ensure long numbers are handled correctly
+// ------------------------------------------------------------------------------------
+
+#pragma once
+#ifndef FAST_A_TO_F_H_INCLUDED
+#define FAST_A_TO_F_H_INCLUDED
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <cmath>
+#include <limits>
+#include <stdint.h>
+#include <assimp/defs.h>
+
+#include "StringComparison.h"
+#include <assimp/DefaultLogger.hpp>
+#include <assimp/Exceptional.h>
+#include <assimp/StringUtils.h>
+
+#ifdef _MSC_VER
+# include <stdint.h>
+#else
+# include <assimp/Compiler/pstdint.h>
+#endif
+
+namespace Assimp {
+
+const double fast_atof_table[16] = { // we write [16] here instead of [] to work around a swig bug
+ 0.0,
+ 0.1,
+ 0.01,
+ 0.001,
+ 0.0001,
+ 0.00001,
+ 0.000001,
+ 0.0000001,
+ 0.00000001,
+ 0.000000001,
+ 0.0000000001,
+ 0.00000000001,
+ 0.000000000001,
+ 0.0000000000001,
+ 0.00000000000001,
+ 0.000000000000001
+};
+
+
+// ------------------------------------------------------------------------------------
+// Convert a string in decimal format to a number
+// ------------------------------------------------------------------------------------
+inline
+unsigned int strtoul10( const char* in, const char** out=0) {
+ unsigned int value = 0;
+
+ for ( ;; ) {
+ if ( *in < '0' || *in > '9' ) {
+ break;
+ }
+
+ value = ( value * 10 ) + ( *in - '0' );
+ ++in;
+ }
+ if ( out ) {
+ *out = in;
+ }
+ return value;
+}
+
+// ------------------------------------------------------------------------------------
+// Convert a string in octal format to a number
+// ------------------------------------------------------------------------------------
+inline
+unsigned int strtoul8( const char* in, const char** out=0) {
+ unsigned int value( 0 );
+ for ( ;; ) {
+ if ( *in < '0' || *in > '7' ) {
+ break;
+ }
+
+ value = ( value << 3 ) + ( *in - '0' );
+ ++in;
+ }
+ if ( out ) {
+ *out = in;
+ }
+ return value;
+}
+
+// ------------------------------------------------------------------------------------
+// Convert a string in hex format to a number
+// ------------------------------------------------------------------------------------
+inline
+unsigned int strtoul16( const char* in, const char** out=0) {
+ unsigned int value( 0 );
+ for ( ;; ) {
+ if ( *in >= '0' && *in <= '9' ) {
+ value = ( value << 4u ) + ( *in - '0' );
+ } else if (*in >= 'A' && *in <= 'F') {
+ value = ( value << 4u ) + ( *in - 'A' ) + 10;
+ } else if (*in >= 'a' && *in <= 'f') {
+ value = ( value << 4u ) + ( *in - 'a' ) + 10;
+ } else {
+ break;
+ }
+ ++in;
+ }
+ if ( out ) {
+ *out = in;
+ }
+ return value;
+}
+
+// ------------------------------------------------------------------------------------
+// Convert just one hex digit
+// Return value is UINT_MAX if the input character is not a hex digit.
+// ------------------------------------------------------------------------------------
+inline
+unsigned int HexDigitToDecimal(char in) {
+ unsigned int out( UINT_MAX );
+ if ( in >= '0' && in <= '9' ) {
+ out = in - '0';
+ } else if ( in >= 'a' && in <= 'f' ) {
+ out = 10u + in - 'a';
+ } else if ( in >= 'A' && in <= 'F' ) {
+ out = 10u + in - 'A';
+ }
+
+ // return value is UINT_MAX if the input is not a hex digit
+ return out;
+}
+
+// ------------------------------------------------------------------------------------
+// Convert a hex-encoded octet (2 characters, i.e. df or 1a).
+// ------------------------------------------------------------------------------------
+inline
+uint8_t HexOctetToDecimal(const char* in) {
+ return ((uint8_t)HexDigitToDecimal(in[0])<<4)+(uint8_t)HexDigitToDecimal(in[1]);
+}
+
+// ------------------------------------------------------------------------------------
+// signed variant of strtoul10
+// ------------------------------------------------------------------------------------
+inline
+int strtol10( const char* in, const char** out=0) {
+ bool inv = (*in=='-');
+ if ( inv || *in == '+' ) {
+ ++in;
+ }
+
+ int value = strtoul10(in,out);
+ if (inv) {
+ value = -value;
+ }
+ return value;
+}
+
+// ------------------------------------------------------------------------------------
+// Parse a C++-like integer literal - hex and oct prefixes.
+// 0xNNNN - hex
+// 0NNN - oct
+// NNN - dec
+// ------------------------------------------------------------------------------------
+inline
+unsigned int strtoul_cppstyle( const char* in, const char** out=0) {
+ if ('0' == in[0]) {
+ return 'x' == in[1] ? strtoul16(in+2,out) : strtoul8(in+1,out);
+ }
+ return strtoul10(in, out);
+}
+
+// ------------------------------------------------------------------------------------
+// Special version of the function, providing higher accuracy and safety
+// It is mainly used by fast_atof to prevent ugly and unwanted integer overflows.
+// ------------------------------------------------------------------------------------
+template<typename ExceptionType = DeadlyImportError>
+inline
+uint64_t strtoul10_64( const char* in, const char** out=0, unsigned int* max_inout=0) {
+ unsigned int cur = 0;
+ uint64_t value = 0;
+
+ if ( *in < '0' || *in > '9' ) {
+ // The string is known to be bad, so don't risk printing the whole thing.
+ throw ExceptionType("The string \"", ai_str_toprintable(in, (int)strlen(in)), "\" cannot be converted into a value." );
+ }
+
+ for ( ;; ) {
+ if ( *in < '0' || *in > '9' ) {
+ break;
+ }
+
+ const uint64_t new_value = ( value * (uint64_t) 10 ) + ( (uint64_t) ( *in - '0' ) );
+
+ // numeric overflow, we rely on you
+ if ( new_value < value ) {
+ ASSIMP_LOG_WARN( "Converting the string \"", in, "\" into a value resulted in overflow." );
+ return 0;
+ }
+
+ value = new_value;
+
+ ++in;
+ ++cur;
+
+ if (max_inout && *max_inout == cur) {
+ if (out) { /* skip to end */
+ while ( *in >= '0' && *in <= '9' ) {
+ ++in;
+ }
+ *out = in;
+ }
+
+ return value;
+ }
+ }
+ if ( out ) {
+ *out = in;
+ }
+
+ if ( max_inout ) {
+ *max_inout = cur;
+ }
+
+ return value;
+}
+
+// ------------------------------------------------------------------------------------
+// signed variant of strtoul10_64
+// ------------------------------------------------------------------------------------
+template<typename ExceptionType = DeadlyImportError>
+inline
+int64_t strtol10_64(const char* in, const char** out = 0, unsigned int* max_inout = 0) {
+ bool inv = (*in == '-');
+ if ( inv || *in == '+' ) {
+ ++in;
+ }
+
+ int64_t value = strtoul10_64<ExceptionType>(in, out, max_inout);
+ if (inv) {
+ value = -value;
+ }
+ return value;
+}
+
+// Number of relevant decimals for floating-point parsing.
+#define AI_FAST_ATOF_RELAVANT_DECIMALS 15
+
+// ------------------------------------------------------------------------------------
+//! Provides a fast function for converting a string into a float,
+//! about 6 times faster than atof in win32.
+// If you find any bugs, please send them to me, niko (at) irrlicht3d.org.
+// ------------------------------------------------------------------------------------
+template<typename Real, typename ExceptionType = DeadlyImportError>
+inline
+const char* fast_atoreal_move(const char* c, Real& out, bool check_comma = true) {
+ Real f = 0;
+
+ bool inv = (*c == '-');
+ if (inv || *c == '+') {
+ ++c;
+ }
+
+ if ((c[0] == 'N' || c[0] == 'n') && ASSIMP_strincmp(c, "nan", 3) == 0) {
+ out = std::numeric_limits<Real>::quiet_NaN();
+ c += 3;
+ return c;
+ }
+
+ if ((c[0] == 'I' || c[0] == 'i') && ASSIMP_strincmp(c, "inf", 3) == 0) {
+ out = std::numeric_limits<Real>::infinity();
+ if (inv) {
+ out = -out;
+ }
+ c += 3;
+ if ((c[0] == 'I' || c[0] == 'i') && ASSIMP_strincmp(c, "inity", 5) == 0) {
+ c += 5;
+ }
+ return c;
+ }
+
+ if (!(c[0] >= '0' && c[0] <= '9') &&
+ !((c[0] == '.' || (check_comma && c[0] == ',')) && c[1] >= '0' && c[1] <= '9')) {
+ // The string is known to be bad, so don't risk printing the whole thing.
+ throw ExceptionType("Cannot parse string \"", ai_str_toprintable(c, (int)strlen(c)),
+ "\" as a real number: does not start with digit "
+ "or decimal point followed by digit.");
+ }
+
+ if (*c != '.' && (! check_comma || c[0] != ',')) {
+ f = static_cast<Real>( strtoul10_64<ExceptionType> ( c, &c) );
+ }
+
+ if ((*c == '.' || (check_comma && c[0] == ',')) && c[1] >= '0' && c[1] <= '9') {
+ ++c;
+
+ // NOTE: The original implementation is highly inaccurate here. The precision of a single
+ // IEEE 754 float is not high enough, everything behind the 6th digit tends to be more
+ // inaccurate than it would need to be. Casting to double seems to solve the problem.
+ // strtol_64 is used to prevent integer overflow.
+
+ // Another fix: this tends to become 0 for long numbers if we don't limit the maximum
+ // number of digits to be read. AI_FAST_ATOF_RELAVANT_DECIMALS can be a value between
+ // 1 and 15.
+ unsigned int diff = AI_FAST_ATOF_RELAVANT_DECIMALS;
+ double pl = static_cast<double>( strtoul10_64<ExceptionType> ( c, &c, &diff ));
+
+ pl *= fast_atof_table[diff];
+ f += static_cast<Real>( pl );
+ }
+ // For backwards compatibility: eat trailing dots, but not trailing commas.
+ else if (*c == '.') {
+ ++c;
+ }
+
+ // A major 'E' must be allowed. Necessary for proper reading of some DXF files.
+ // Thanks to Zhao Lei to point out that this if() must be outside the if (*c == '.' ..)
+ if (*c == 'e' || *c == 'E') {
+ ++c;
+ const bool einv = (*c=='-');
+ if (einv || *c=='+') {
+ ++c;
+ }
+
+ // The reason float constants are used here is that we've seen cases where compilers
+ // would perform such casts on compile-time constants at runtime, which would be
+ // bad considering how frequently fast_atoreal_move<float> is called in Assimp.
+ Real exp = static_cast<Real>( strtoul10_64<ExceptionType>(c, &c) );
+ if (einv) {
+ exp = -exp;
+ }
+ f *= std::pow(static_cast<Real>(10.0), exp);
+ }
+
+ if (inv) {
+ f = -f;
+ }
+ out = f;
+ return c;
+}
+
+// ------------------------------------------------------------------------------------
+// The same but more human.
+template<typename ExceptionType = DeadlyImportError>
+inline
+ai_real fast_atof(const char* c) {
+ ai_real ret(0.0);
+ fast_atoreal_move<ai_real, ExceptionType>(c, ret);
+
+ return ret;
+}
+
+template<typename ExceptionType = DeadlyImportError>
+inline
+ai_real fast_atof( const char* c, const char** cout) {
+ ai_real ret(0.0);
+ *cout = fast_atoreal_move<ai_real, ExceptionType>(c, ret);
+
+ return ret;
+}
+
+template<typename ExceptionType = DeadlyImportError>
+inline
+ai_real fast_atof( const char** inout) {
+ ai_real ret(0.0);
+ *inout = fast_atoreal_move<ai_real, ExceptionType>(*inout, ret);
+
+ return ret;
+}
+
+} //! namespace Assimp
+
+#endif // FAST_A_TO_F_H_INCLUDED
diff --git a/src/mesh/assimp-master/include/assimp/importerdesc.h b/src/mesh/assimp-master/include/assimp/importerdesc.h
new file mode 100644
index 0000000..d08bd17
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/importerdesc.h
@@ -0,0 +1,154 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file importerdesc.h
+ * @brief #aiImporterFlags, aiImporterDesc implementation.
+ */
+#pragma once
+#ifndef AI_IMPORTER_DESC_H_INC
+#define AI_IMPORTER_DESC_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Mixed set of flags for #aiImporterDesc, indicating some features
+ * common to many importers*/
+enum aiImporterFlags {
+ /** Indicates that there is a textual encoding of the
+ * file format; and that it is supported.*/
+ aiImporterFlags_SupportTextFlavour = 0x1,
+
+ /** Indicates that there is a binary encoding of the
+ * file format; and that it is supported.*/
+ aiImporterFlags_SupportBinaryFlavour = 0x2,
+
+ /** Indicates that there is a compressed encoding of the
+ * file format; and that it is supported.*/
+ aiImporterFlags_SupportCompressedFlavour = 0x4,
+
+ /** Indicates that the importer reads only a very particular
+ * subset of the file format. This happens commonly for
+ * declarative or procedural formats which cannot easily
+ * be mapped to #aiScene */
+ aiImporterFlags_LimitedSupport = 0x8,
+
+ /** Indicates that the importer is highly experimental and
+ * should be used with care. This only happens for trunk
+ * (i.e. SVN) versions, experimental code is not included
+ * in releases. */
+ aiImporterFlags_Experimental = 0x10
+};
+
+/** Meta information about a particular importer. Importers need to fill
+ * this structure, but they can freely decide how talkative they are.
+ * A common use case for loader meta info is a user interface
+ * in which the user can choose between various import/export file
+ * formats. Building such an UI by hand means a lot of maintenance
+ * as importers/exporters are added to Assimp, so it might be useful
+ * to have a common mechanism to query some rough importer
+ * characteristics. */
+struct aiImporterDesc {
+ /** Full name of the importer (i.e. Blender3D importer)*/
+ const char *mName;
+
+ /** Original author (left blank if unknown or whole assimp team) */
+ const char *mAuthor;
+
+ /** Current maintainer, left blank if the author maintains */
+ const char *mMaintainer;
+
+ /** Implementation comments, i.e. unimplemented features*/
+ const char *mComments;
+
+ /** These flags indicate some characteristics common to many
+ importers. */
+ unsigned int mFlags;
+
+ /** Minimum format version that can be loaded im major.minor format,
+ both are set to 0 if there is either no version scheme
+ or if the loader doesn't care. */
+ unsigned int mMinMajor;
+ unsigned int mMinMinor;
+
+ /** Maximum format version that can be loaded im major.minor format,
+ both are set to 0 if there is either no version scheme
+ or if the loader doesn't care. Loaders that expect to be
+ forward-compatible to potential future format versions should
+ indicate zero, otherwise they should specify the current
+ maximum version.*/
+ unsigned int mMaxMajor;
+ unsigned int mMaxMinor;
+
+ /** List of file extensions this importer can handle.
+ List entries are separated by space characters.
+ All entries are lower case without a leading dot (i.e.
+ "xml dae" would be a valid value. Note that multiple
+ importers may respond to the same file extension -
+ assimp calls all importers in the order in which they
+ are registered and each importer gets the opportunity
+ to load the file until one importer "claims" the file. Apart
+ from file extension checks, importers typically use
+ other methods to quickly reject files (i.e. magic
+ words) so this does not mean that common or generic
+ file extensions such as XML would be tediously slow. */
+ const char *mFileExtensions;
+};
+
+/** \brief Returns the Importer description for a given extension.
+
+Will return a nullptr if no assigned importer desc. was found for the given extension
+ \param extension [in] The extension to look for
+ \return A pointer showing to the ImporterDesc, \see aiImporterDesc.
+*/
+ASSIMP_API const C_STRUCT aiImporterDesc *aiGetImporterDesc(const char *extension);
+
+#ifdef __cplusplus
+} // end of extern "C"
+#endif
+
+#endif // AI_IMPORTER_DESC_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/light.h b/src/mesh/assimp-master/include/assimp/light.h
new file mode 100644
index 0000000..3331997
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/light.h
@@ -0,0 +1,258 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file light.h
+ * @brief Defines the aiLight data structure
+ */
+
+#pragma once
+#ifndef AI_LIGHT_H_INC
+#define AI_LIGHT_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------------
+/** Enumerates all supported types of light sources.
+ */
+enum aiLightSourceType {
+ aiLightSource_UNDEFINED = 0x0,
+
+ //! A directional light source has a well-defined direction
+ //! but is infinitely far away. That's quite a good
+ //! approximation for sun light.
+ aiLightSource_DIRECTIONAL = 0x1,
+
+ //! A point light source has a well-defined position
+ //! in space but no direction - it emits light in all
+ //! directions. A normal bulb is a point light.
+ aiLightSource_POINT = 0x2,
+
+ //! A spot light source emits light in a specific
+ //! angle. It has a position and a direction it is pointing to.
+ //! A good example for a spot light is a light spot in
+ //! sport arenas.
+ aiLightSource_SPOT = 0x3,
+
+ //! The generic light level of the world, including the bounces
+ //! of all other light sources.
+ //! Typically, there's at most one ambient light in a scene.
+ //! This light type doesn't have a valid position, direction, or
+ //! other properties, just a color.
+ aiLightSource_AMBIENT = 0x4,
+
+ //! An area light is a rectangle with predefined size that uniformly
+ //! emits light from one of its sides. The position is center of the
+ //! rectangle and direction is its normal vector.
+ aiLightSource_AREA = 0x5,
+
+ /** This value is not used. It is just there to force the
+ * compiler to map this enum to a 32 Bit integer.
+ */
+#ifndef SWIG
+ _aiLightSource_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** Helper structure to describe a light source.
+ *
+ * Assimp supports multiple sorts of light sources, including
+ * directional, point and spot lights. All of them are defined with just
+ * a single structure and distinguished by their parameters.
+ * Note - some file formats (such as 3DS, ASE) export a "target point" -
+ * the point a spot light is looking at (it can even be animated). Assimp
+ * writes the target point as a sub-node of a spot-lights's main node,
+ * called "<spotName>.Target". However, this is just additional information
+ * then, the transformation tracks of the main node make the
+ * spot light already point in the right direction.
+*/
+struct aiLight {
+ /** The name of the light source.
+ *
+ * There must be a node in the scene-graph with the same name.
+ * This node specifies the position of the light in the scene
+ * hierarchy and can be animated.
+ */
+ C_STRUCT aiString mName;
+
+ /** The type of the light source.
+ *
+ * aiLightSource_UNDEFINED is not a valid value for this member.
+ */
+ C_ENUM aiLightSourceType mType;
+
+ /** Position of the light source in space. Relative to the
+ * transformation of the node corresponding to the light.
+ *
+ * The position is undefined for directional lights.
+ */
+ C_STRUCT aiVector3D mPosition;
+
+ /** Direction of the light source in space. Relative to the
+ * transformation of the node corresponding to the light.
+ *
+ * The direction is undefined for point lights. The vector
+ * may be normalized, but it needn't.
+ */
+ C_STRUCT aiVector3D mDirection;
+
+ /** Up direction of the light source in space. Relative to the
+ * transformation of the node corresponding to the light.
+ *
+ * The direction is undefined for point lights. The vector
+ * may be normalized, but it needn't.
+ */
+ C_STRUCT aiVector3D mUp;
+
+ /** Constant light attenuation factor.
+ *
+ * The intensity of the light source at a given distance 'd' from
+ * the light's position is
+ * @code
+ * Atten = 1/( att0 + att1 * d + att2 * d*d)
+ * @endcode
+ * This member corresponds to the att0 variable in the equation.
+ * Naturally undefined for directional lights.
+ */
+ float mAttenuationConstant;
+
+ /** Linear light attenuation factor.
+ *
+ * The intensity of the light source at a given distance 'd' from
+ * the light's position is
+ * @code
+ * Atten = 1/( att0 + att1 * d + att2 * d*d)
+ * @endcode
+ * This member corresponds to the att1 variable in the equation.
+ * Naturally undefined for directional lights.
+ */
+ float mAttenuationLinear;
+
+ /** Quadratic light attenuation factor.
+ *
+ * The intensity of the light source at a given distance 'd' from
+ * the light's position is
+ * @code
+ * Atten = 1/( att0 + att1 * d + att2 * d*d)
+ * @endcode
+ * This member corresponds to the att2 variable in the equation.
+ * Naturally undefined for directional lights.
+ */
+ float mAttenuationQuadratic;
+
+ /** Diffuse color of the light source
+ *
+ * The diffuse light color is multiplied with the diffuse
+ * material color to obtain the final color that contributes
+ * to the diffuse shading term.
+ */
+ C_STRUCT aiColor3D mColorDiffuse;
+
+ /** Specular color of the light source
+ *
+ * The specular light color is multiplied with the specular
+ * material color to obtain the final color that contributes
+ * to the specular shading term.
+ */
+ C_STRUCT aiColor3D mColorSpecular;
+
+ /** Ambient color of the light source
+ *
+ * The ambient light color is multiplied with the ambient
+ * material color to obtain the final color that contributes
+ * to the ambient shading term. Most renderers will ignore
+ * this value it, is just a remaining of the fixed-function pipeline
+ * that is still supported by quite many file formats.
+ */
+ C_STRUCT aiColor3D mColorAmbient;
+
+ /** Inner angle of a spot light's light cone.
+ *
+ * The spot light has maximum influence on objects inside this
+ * angle. The angle is given in radians. It is 2PI for point
+ * lights and undefined for directional lights.
+ */
+ float mAngleInnerCone;
+
+ /** Outer angle of a spot light's light cone.
+ *
+ * The spot light does not affect objects outside this angle.
+ * The angle is given in radians. It is 2PI for point lights and
+ * undefined for directional lights. The outer angle must be
+ * greater than or equal to the inner angle.
+ * It is assumed that the application uses a smooth
+ * interpolation between the inner and the outer cone of the
+ * spot light.
+ */
+ float mAngleOuterCone;
+
+ /** Size of area light source. */
+ C_STRUCT aiVector2D mSize;
+
+#ifdef __cplusplus
+
+ aiLight() AI_NO_EXCEPT
+ : mType (aiLightSource_UNDEFINED)
+ , mAttenuationConstant (0.f)
+ , mAttenuationLinear (1.f)
+ , mAttenuationQuadratic (0.f)
+ , mAngleInnerCone ((float)AI_MATH_TWO_PI)
+ , mAngleOuterCone ((float)AI_MATH_TWO_PI)
+ , mSize (0.f, 0.f)
+ {
+ }
+
+#endif
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // !! AI_LIGHT_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/material.h b/src/mesh/assimp-master/include/assimp/material.h
new file mode 100644
index 0000000..416dbc4
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/material.h
@@ -0,0 +1,1681 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file material.h
+ * @brief Defines the material system of the library
+ */
+#pragma once
+#ifndef AI_MATERIAL_H_INC
+#define AI_MATERIAL_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#include <assimp/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Name for default materials (2nd is used if meshes have UV coords)
+#define AI_DEFAULT_MATERIAL_NAME "DefaultMaterial"
+
+// ---------------------------------------------------------------------------
+/** @brief Defines how the Nth texture of a specific type is combined with
+ * the result of all previous layers.
+ *
+ * Example (left: key, right: value): <br>
+ * @code
+ * DiffColor0 - gray
+ * DiffTextureOp0 - aiTextureOpMultiply
+ * DiffTexture0 - tex1.png
+ * DiffTextureOp0 - aiTextureOpAdd
+ * DiffTexture1 - tex2.png
+ * @endcode
+ * Written as equation, the final diffuse term for a specific pixel would be:
+ * @code
+ * diffFinal = DiffColor0 * sampleTex(DiffTexture0,UV0) +
+ * sampleTex(DiffTexture1,UV0) * diffContrib;
+ * @endcode
+ * where 'diffContrib' is the intensity of the incoming light for that pixel.
+ */
+enum aiTextureOp {
+ /** T = T1 * T2 */
+ aiTextureOp_Multiply = 0x0,
+
+ /** T = T1 + T2 */
+ aiTextureOp_Add = 0x1,
+
+ /** T = T1 - T2 */
+ aiTextureOp_Subtract = 0x2,
+
+ /** T = T1 / T2 */
+ aiTextureOp_Divide = 0x3,
+
+ /** T = (T1 + T2) - (T1 * T2) */
+ aiTextureOp_SmoothAdd = 0x4,
+
+ /** T = T1 + (T2-0.5) */
+ aiTextureOp_SignedAdd = 0x5,
+
+#ifndef SWIG
+ _aiTextureOp_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Defines how UV coordinates outside the [0...1] range are handled.
+ *
+ * Commonly referred to as 'wrapping mode'.
+ */
+enum aiTextureMapMode {
+ /** A texture coordinate u|v is translated to u%1|v%1
+ */
+ aiTextureMapMode_Wrap = 0x0,
+
+ /** Texture coordinates outside [0...1]
+ * are clamped to the nearest valid value.
+ */
+ aiTextureMapMode_Clamp = 0x1,
+
+ /** If the texture coordinates for a pixel are outside [0...1]
+ * the texture is not applied to that pixel
+ */
+ aiTextureMapMode_Decal = 0x3,
+
+ /** A texture coordinate u|v becomes u%1|v%1 if (u-(u%1))%2 is zero and
+ * 1-(u%1)|1-(v%1) otherwise
+ */
+ aiTextureMapMode_Mirror = 0x2,
+
+#ifndef SWIG
+ _aiTextureMapMode_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Defines how the mapping coords for a texture are generated.
+ *
+ * Real-time applications typically require full UV coordinates, so the use of
+ * the aiProcess_GenUVCoords step is highly recommended. It generates proper
+ * UV channels for non-UV mapped objects, as long as an accurate description
+ * how the mapping should look like (e.g spherical) is given.
+ * See the #AI_MATKEY_MAPPING property for more details.
+ */
+enum aiTextureMapping {
+ /** The mapping coordinates are taken from an UV channel.
+ *
+ * #AI_MATKEY_UVWSRC property specifies from which UV channel
+ * the texture coordinates are to be taken from (remember,
+ * meshes can have more than one UV channel).
+ */
+ aiTextureMapping_UV = 0x0,
+
+ /** Spherical mapping */
+ aiTextureMapping_SPHERE = 0x1,
+
+ /** Cylindrical mapping */
+ aiTextureMapping_CYLINDER = 0x2,
+
+ /** Cubic mapping */
+ aiTextureMapping_BOX = 0x3,
+
+ /** Planar mapping */
+ aiTextureMapping_PLANE = 0x4,
+
+ /** Undefined mapping. Have fun. */
+ aiTextureMapping_OTHER = 0x5,
+
+#ifndef SWIG
+ _aiTextureMapping_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Defines the purpose of a texture
+ *
+ * This is a very difficult topic. Different 3D packages support different
+ * kinds of textures. For very common texture types, such as bumpmaps, the
+ * rendering results depend on implementation details in the rendering
+ * pipelines of these applications. Assimp loads all texture references from
+ * the model file and tries to determine which of the predefined texture
+ * types below is the best choice to match the original use of the texture
+ * as closely as possible.<br>
+ *
+ * In content pipelines you'll usually define how textures have to be handled,
+ * and the artists working on models have to conform to this specification,
+ * regardless which 3D tool they're using.
+ */
+enum aiTextureType {
+ /** Dummy value.
+ *
+ * No texture, but the value to be used as 'texture semantic'
+ * (#aiMaterialProperty::mSemantic) for all material properties
+ * *not* related to textures.
+ */
+ aiTextureType_NONE = 0,
+
+ /** LEGACY API MATERIALS
+ * Legacy refers to materials which
+ * Were originally implemented in the specifications around 2000.
+ * These must never be removed, as most engines support them.
+ */
+
+ /** The texture is combined with the result of the diffuse
+ * lighting equation.
+ * OR
+ * PBR Specular/Glossiness
+ */
+ aiTextureType_DIFFUSE = 1,
+
+ /** The texture is combined with the result of the specular
+ * lighting equation.
+ * OR
+ * PBR Specular/Glossiness
+ */
+ aiTextureType_SPECULAR = 2,
+
+ /** The texture is combined with the result of the ambient
+ * lighting equation.
+ */
+ aiTextureType_AMBIENT = 3,
+
+ /** The texture is added to the result of the lighting
+ * calculation. It isn't influenced by incoming light.
+ */
+ aiTextureType_EMISSIVE = 4,
+
+ /** The texture is a height map.
+ *
+ * By convention, higher gray-scale values stand for
+ * higher elevations from the base height.
+ */
+ aiTextureType_HEIGHT = 5,
+
+ /** The texture is a (tangent space) normal-map.
+ *
+ * Again, there are several conventions for tangent-space
+ * normal maps. Assimp does (intentionally) not
+ * distinguish here.
+ */
+ aiTextureType_NORMALS = 6,
+
+ /** The texture defines the glossiness of the material.
+ *
+ * The glossiness is in fact the exponent of the specular
+ * (phong) lighting equation. Usually there is a conversion
+ * function defined to map the linear color values in the
+ * texture to a suitable exponent. Have fun.
+ */
+ aiTextureType_SHININESS = 7,
+
+ /** The texture defines per-pixel opacity.
+ *
+ * Usually 'white' means opaque and 'black' means
+ * 'transparency'. Or quite the opposite. Have fun.
+ */
+ aiTextureType_OPACITY = 8,
+
+ /** Displacement texture
+ *
+ * The exact purpose and format is application-dependent.
+ * Higher color values stand for higher vertex displacements.
+ */
+ aiTextureType_DISPLACEMENT = 9,
+
+ /** Lightmap texture (aka Ambient Occlusion)
+ *
+ * Both 'Lightmaps' and dedicated 'ambient occlusion maps' are
+ * covered by this material property. The texture contains a
+ * scaling value for the final color value of a pixel. Its
+ * intensity is not affected by incoming light.
+ */
+ aiTextureType_LIGHTMAP = 10,
+
+ /** Reflection texture
+ *
+ * Contains the color of a perfect mirror reflection.
+ * Rarely used, almost never for real-time applications.
+ */
+ aiTextureType_REFLECTION = 11,
+
+ /** PBR Materials
+ * PBR definitions from maya and other modelling packages now use this standard.
+ * This was originally introduced around 2012.
+ * Support for this is in game engines like Godot, Unreal or Unity3D.
+ * Modelling packages which use this are very common now.
+ */
+
+ aiTextureType_BASE_COLOR = 12,
+ aiTextureType_NORMAL_CAMERA = 13,
+ aiTextureType_EMISSION_COLOR = 14,
+ aiTextureType_METALNESS = 15,
+ aiTextureType_DIFFUSE_ROUGHNESS = 16,
+ aiTextureType_AMBIENT_OCCLUSION = 17,
+
+ /** PBR Material Modifiers
+ * Some modern renderers have further PBR modifiers that may be overlaid
+ * on top of the 'base' PBR materials for additional realism.
+ * These use multiple texture maps, so only the base type is directly defined
+ */
+
+ /** Sheen
+ * Generally used to simulate textiles that are covered in a layer of microfibers
+ * eg velvet
+ * https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_sheen
+ */
+ aiTextureType_SHEEN = 19,
+
+ /** Clearcoat
+ * Simulates a layer of 'polish' or 'laquer' layered on top of a PBR substrate
+ * https://autodesk.github.io/standard-surface/#closures/coating
+ * https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_clearcoat
+ */
+ aiTextureType_CLEARCOAT = 20,
+
+ /** Transmission
+ * Simulates transmission through the surface
+ * May include further information such as wall thickness
+ */
+ aiTextureType_TRANSMISSION = 21,
+
+ /** Unknown texture
+ *
+ * A texture reference that does not match any of the definitions
+ * above is considered to be 'unknown'. It is still imported,
+ * but is excluded from any further post-processing.
+ */
+ aiTextureType_UNKNOWN = 18,
+
+#ifndef SWIG
+ _aiTextureType_Force32Bit = INT_MAX
+#endif
+};
+
+#define AI_TEXTURE_TYPE_MAX aiTextureType_UNKNOWN
+
+// -------------------------------------------------------------------------------
+// Get a string for a given aiTextureType
+ASSIMP_API const char *TextureTypeToString(enum aiTextureType in);
+
+// ---------------------------------------------------------------------------
+/** @brief Defines all shading models supported by the library
+ *
+ * Property: #AI_MATKEY_SHADING_MODEL
+ *
+ * The list of shading modes has been taken from Blender.
+ * See Blender documentation for more information. The API does
+ * not distinguish between "specular" and "diffuse" shaders (thus the
+ * specular term for diffuse shading models like Oren-Nayar remains
+ * undefined). <br>
+ * Again, this value is just a hint. Assimp tries to select the shader whose
+ * most common implementation matches the original rendering results of the
+ * 3D modeler which wrote a particular model as closely as possible.
+ *
+ */
+enum aiShadingMode {
+ /** Flat shading. Shading is done on per-face base,
+ * diffuse only. Also known as 'faceted shading'.
+ */
+ aiShadingMode_Flat = 0x1,
+
+ /** Simple Gouraud shading.
+ */
+ aiShadingMode_Gouraud = 0x2,
+
+ /** Phong-Shading -
+ */
+ aiShadingMode_Phong = 0x3,
+
+ /** Phong-Blinn-Shading
+ */
+ aiShadingMode_Blinn = 0x4,
+
+ /** Toon-Shading per pixel
+ *
+ * Also known as 'comic' shader.
+ */
+ aiShadingMode_Toon = 0x5,
+
+ /** OrenNayar-Shading per pixel
+ *
+ * Extension to standard Lambertian shading, taking the
+ * roughness of the material into account
+ */
+ aiShadingMode_OrenNayar = 0x6,
+
+ /** Minnaert-Shading per pixel
+ *
+ * Extension to standard Lambertian shading, taking the
+ * "darkness" of the material into account
+ */
+ aiShadingMode_Minnaert = 0x7,
+
+ /** CookTorrance-Shading per pixel
+ *
+ * Special shader for metallic surfaces.
+ */
+ aiShadingMode_CookTorrance = 0x8,
+
+ /** No shading at all. Constant light influence of 1.0.
+ * Also known as "Unlit"
+ */
+ aiShadingMode_NoShading = 0x9,
+ aiShadingMode_Unlit = aiShadingMode_NoShading, // Alias
+
+ /** Fresnel shading
+ */
+ aiShadingMode_Fresnel = 0xa,
+
+ /** Physically-Based Rendering (PBR) shading using
+ * Bidirectional scattering/reflectance distribution function (BSDF/BRDF)
+ * There are multiple methods under this banner, and model files may provide
+ * data for more than one PBR-BRDF method.
+ * Applications should use the set of provided properties to determine which
+ * of their preferred PBR rendering methods are likely to be available
+ * eg:
+ * - If AI_MATKEY_METALLIC_FACTOR is set, then a Metallic/Roughness is available
+ * - If AI_MATKEY_GLOSSINESS_FACTOR is set, then a Specular/Glossiness is available
+ * Note that some PBR methods allow layering of techniques
+ */
+ aiShadingMode_PBR_BRDF = 0xb,
+
+#ifndef SWIG
+ _aiShadingMode_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Defines some mixed flags for a particular texture.
+ *
+ * Usually you'll instruct your cg artists how textures have to look like ...
+ * and how they will be processed in your application. However, if you use
+ * Assimp for completely generic loading purposes you might also need to
+ * process these flags in order to display as many 'unknown' 3D models as
+ * possible correctly.
+ *
+ * This corresponds to the #AI_MATKEY_TEXFLAGS property.
+*/
+enum aiTextureFlags {
+ /** The texture's color values have to be inverted (component-wise 1-n)
+ */
+ aiTextureFlags_Invert = 0x1,
+
+ /** Explicit request to the application to process the alpha channel
+ * of the texture.
+ *
+ * Mutually exclusive with #aiTextureFlags_IgnoreAlpha. These
+ * flags are set if the library can say for sure that the alpha
+ * channel is used/is not used. If the model format does not
+ * define this, it is left to the application to decide whether
+ * the texture alpha channel - if any - is evaluated or not.
+ */
+ aiTextureFlags_UseAlpha = 0x2,
+
+ /** Explicit request to the application to ignore the alpha channel
+ * of the texture.
+ *
+ * Mutually exclusive with #aiTextureFlags_UseAlpha.
+ */
+ aiTextureFlags_IgnoreAlpha = 0x4,
+
+#ifndef SWIG
+ _aiTextureFlags_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Defines alpha-blend flags.
+ *
+ * If you're familiar with OpenGL or D3D, these flags aren't new to you.
+ * They define *how* the final color value of a pixel is computed, basing
+ * on the previous color at that pixel and the new color value from the
+ * material.
+ * The blend formula is:
+ * @code
+ * SourceColor * SourceBlend + DestColor * DestBlend
+ * @endcode
+ * where DestColor is the previous color in the frame-buffer at this
+ * position and SourceColor is the material color before the transparency
+ * calculation.<br>
+ * This corresponds to the #AI_MATKEY_BLEND_FUNC property.
+*/
+enum aiBlendMode {
+ /**
+ * Formula:
+ * @code
+ * SourceColor*SourceAlpha + DestColor*(1-SourceAlpha)
+ * @endcode
+ */
+ aiBlendMode_Default = 0x0,
+
+ /** Additive blending
+ *
+ * Formula:
+ * @code
+ * SourceColor*1 + DestColor*1
+ * @endcode
+ */
+ aiBlendMode_Additive = 0x1,
+
+// we don't need more for the moment, but we might need them
+// in future versions ...
+
+#ifndef SWIG
+ _aiBlendMode_Force32Bit = INT_MAX
+#endif
+};
+
+#include "./Compiler/pushpack1.h"
+
+// ---------------------------------------------------------------------------
+/** @brief Defines how an UV channel is transformed.
+ *
+ * This is just a helper structure for the #AI_MATKEY_UVTRANSFORM key.
+ * See its documentation for more details.
+ *
+ * Typically you'll want to build a matrix of this information. However,
+ * we keep separate scaling/translation/rotation values to make it
+ * easier to process and optimize UV transformations internally.
+ */
+struct aiUVTransform {
+ /** Translation on the u and v axes.
+ *
+ * The default value is (0|0).
+ */
+ C_STRUCT aiVector2D mTranslation;
+
+ /** Scaling on the u and v axes.
+ *
+ * The default value is (1|1).
+ */
+ C_STRUCT aiVector2D mScaling;
+
+ /** Rotation - in counter-clockwise direction.
+ *
+ * The rotation angle is specified in radians. The
+ * rotation center is 0.5f|0.5f. The default value
+ * 0.f.
+ */
+ ai_real mRotation;
+
+#ifdef __cplusplus
+ aiUVTransform() AI_NO_EXCEPT
+ : mTranslation(0.0, 0.0),
+ mScaling(1.0, 1.0),
+ mRotation(0.0) {
+ // nothing to be done here ...
+ }
+#endif
+};
+
+#include "./Compiler/poppack1.h"
+
+//! @cond AI_DOX_INCLUDE_INTERNAL
+// ---------------------------------------------------------------------------
+/** @brief A very primitive RTTI system for the contents of material
+ * properties.
+ */
+enum aiPropertyTypeInfo {
+ /** Array of single-precision (32 Bit) floats
+ *
+ * It is possible to use aiGetMaterialInteger[Array]() (or the C++-API
+ * aiMaterial::Get()) to query properties stored in floating-point format.
+ * The material system performs the type conversion automatically.
+ */
+ aiPTI_Float = 0x1,
+
+ /** Array of double-precision (64 Bit) floats
+ *
+ * It is possible to use aiGetMaterialInteger[Array]() (or the C++-API
+ * aiMaterial::Get()) to query properties stored in floating-point format.
+ * The material system performs the type conversion automatically.
+ */
+ aiPTI_Double = 0x2,
+
+ /** The material property is an aiString.
+ *
+ * Arrays of strings aren't possible, aiGetMaterialString() (or the
+ * C++-API aiMaterial::Get()) *must* be used to query a string property.
+ */
+ aiPTI_String = 0x3,
+
+ /** Array of (32 Bit) integers
+ *
+ * It is possible to use aiGetMaterialFloat[Array]() (or the C++-API
+ * aiMaterial::Get()) to query properties stored in integer format.
+ * The material system performs the type conversion automatically.
+ */
+ aiPTI_Integer = 0x4,
+
+ /** Simple binary buffer, content undefined. Not convertible to anything.
+ */
+ aiPTI_Buffer = 0x5,
+
+/** This value is not used. It is just there to force the
+ * compiler to map this enum to a 32 Bit integer.
+ */
+#ifndef SWIG
+ _aiPTI_Force32Bit = INT_MAX
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Data structure for a single material property
+ *
+ * As an user, you'll probably never need to deal with this data structure.
+ * Just use the provided aiGetMaterialXXX() or aiMaterial::Get() family
+ * of functions to query material properties easily. Processing them
+ * manually is faster, but it is not the recommended way. It isn't worth
+ * the effort. <br>
+ * Material property names follow a simple scheme:
+ * @code
+ * $<name>
+ * ?<name>
+ * A public property, there must be corresponding AI_MATKEY_XXX define
+ * 2nd: Public, but ignored by the #aiProcess_RemoveRedundantMaterials
+ * post-processing step.
+ * ~<name>
+ * A temporary property for internal use.
+ * @endcode
+ * @see aiMaterial
+ */
+struct aiMaterialProperty {
+ /** Specifies the name of the property (key)
+ * Keys are generally case insensitive.
+ */
+ C_STRUCT aiString mKey;
+
+ /** Textures: Specifies their exact usage semantic.
+ * For non-texture properties, this member is always 0
+ * (or, better-said, #aiTextureType_NONE).
+ */
+ unsigned int mSemantic;
+
+ /** Textures: Specifies the index of the texture.
+ * For non-texture properties, this member is always 0.
+ */
+ unsigned int mIndex;
+
+ /** Size of the buffer mData is pointing to, in bytes.
+ * This value may not be 0.
+ */
+ unsigned int mDataLength;
+
+ /** Type information for the property.
+ *
+ * Defines the data layout inside the data buffer. This is used
+ * by the library internally to perform debug checks and to
+ * utilize proper type conversions.
+ * (It's probably a hacky solution, but it works.)
+ */
+ C_ENUM aiPropertyTypeInfo mType;
+
+ /** Binary buffer to hold the property's value.
+ * The size of the buffer is always mDataLength.
+ */
+ char *mData;
+
+#ifdef __cplusplus
+
+ aiMaterialProperty() AI_NO_EXCEPT
+ : mSemantic(0),
+ mIndex(0),
+ mDataLength(0),
+ mType(aiPTI_Float),
+ mData(nullptr) {
+ // empty
+ }
+
+ ~aiMaterialProperty() {
+ delete[] mData;
+ mData = nullptr;
+ }
+
+#endif
+};
+//! @endcond
+
+#ifdef __cplusplus
+} // We need to leave the "C" block here to allow template member functions
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Data structure for a material
+*
+* Material data is stored using a key-value structure. A single key-value
+* pair is called a 'material property'. C++ users should use the provided
+* member functions of aiMaterial to process material properties, C users
+* have to stick with the aiMaterialGetXXX family of unbound functions.
+* The library defines a set of standard keys (AI_MATKEY_XXX).
+*/
+#ifdef __cplusplus
+struct ASSIMP_API aiMaterial
+#else
+struct aiMaterial
+#endif
+{
+
+#ifdef __cplusplus
+
+public:
+ aiMaterial();
+ ~aiMaterial();
+
+ // -------------------------------------------------------------------
+ /**
+ * @brief Returns the name of the material.
+ * @return The name of the material.
+ */
+ // -------------------------------------------------------------------
+ aiString GetName() const;
+
+ // -------------------------------------------------------------------
+ /** @brief Retrieve an array of Type values with a specific key
+ * from the material
+ *
+ * @param pKey Key to search for. One of the AI_MATKEY_XXX constants.
+ * @param type .. set by AI_MATKEY_XXX
+ * @param idx .. set by AI_MATKEY_XXX
+ * @param pOut Pointer to a buffer to receive the result.
+ * @param pMax Specifies the size of the given buffer, in Type's.
+ * Receives the number of values (not bytes!) read.
+ * NULL is a valid value for this parameter.
+ */
+ template <typename Type>
+ aiReturn Get(const char *pKey, unsigned int type,
+ unsigned int idx, Type *pOut, unsigned int *pMax) const;
+
+ aiReturn Get(const char *pKey, unsigned int type,
+ unsigned int idx, int *pOut, unsigned int *pMax) const;
+
+ aiReturn Get(const char *pKey, unsigned int type,
+ unsigned int idx, ai_real *pOut, unsigned int *pMax) const;
+
+ // -------------------------------------------------------------------
+ /** @brief Retrieve a Type value with a specific key
+ * from the material
+ *
+ * @param pKey Key to search for. One of the AI_MATKEY_XXX constants.
+ * @param type Specifies the type of the texture to be retrieved (
+ * e.g. diffuse, specular, height map ...)
+ * @param idx Index of the texture to be retrieved.
+ * @param pOut Reference to receive the output value
+ */
+ template <typename Type>
+ aiReturn Get(const char *pKey, unsigned int type,
+ unsigned int idx, Type &pOut) const;
+
+ aiReturn Get(const char *pKey, unsigned int type,
+ unsigned int idx, int &pOut) const;
+
+ aiReturn Get(const char *pKey, unsigned int type,
+ unsigned int idx, ai_real &pOut) const;
+
+ aiReturn Get(const char *pKey, unsigned int type,
+ unsigned int idx, aiString &pOut) const;
+
+ aiReturn Get(const char *pKey, unsigned int type,
+ unsigned int idx, aiColor3D &pOut) const;
+
+ aiReturn Get(const char *pKey, unsigned int type,
+ unsigned int idx, aiColor4D &pOut) const;
+
+ aiReturn Get(const char *pKey, unsigned int type,
+ unsigned int idx, aiUVTransform &pOut) const;
+
+ // -------------------------------------------------------------------
+ /** Get the number of textures for a particular texture type.
+ * @param type Texture type to check for
+ * @return Number of textures for this type.
+ * @note A texture can be easily queried using #GetTexture() */
+ unsigned int GetTextureCount(aiTextureType type) const;
+
+ // -------------------------------------------------------------------
+ /** Helper function to get all parameters pertaining to a
+ * particular texture slot from a material.
+ *
+ * This function is provided just for convenience, you could also
+ * read the single material properties manually.
+ * @param type Specifies the type of the texture to be retrieved (
+ * e.g. diffuse, specular, height map ...)
+ * @param index Index of the texture to be retrieved. The function fails
+ * if there is no texture of that type with this index.
+ * #GetTextureCount() can be used to determine the number of textures
+ * per texture type.
+ * @param path Receives the path to the texture.
+ * Use aiScene::GetEmbeddedTexture() method to determine if returned path
+ * is an image file to be opened or a string key of embedded texture stored in the corresponding scene
+ * (could be a '*' followed by the id of the texture in case of no name)
+ * NULL is a valid value.
+ * @param mapping The texture mapping.
+ * NULL is allowed as value.
+ * @param uvindex Receives the UV index of the texture.
+ * NULL is a valid value.
+ * @param blend Receives the blend factor for the texture
+ * NULL is a valid value.
+ * @param op Receives the texture operation to be performed between
+ * this texture and the previous texture. NULL is allowed as value.
+ * @param mapmode Receives the mapping modes to be used for the texture.
+ * The parameter may be NULL but if it is a valid pointer it MUST
+ * point to an array of 3 aiTextureMapMode's (one for each
+ * axis: UVW order (=XYZ)).
+ */
+ // -------------------------------------------------------------------
+ aiReturn GetTexture(aiTextureType type,
+ unsigned int index,
+ C_STRUCT aiString *path,
+ aiTextureMapping *mapping = NULL,
+ unsigned int *uvindex = NULL,
+ ai_real *blend = NULL,
+ aiTextureOp *op = NULL,
+ aiTextureMapMode *mapmode = NULL) const;
+
+ // Setters
+
+ // ------------------------------------------------------------------------------
+ /** @brief Add a property with a given key and type info to the material
+ * structure
+ *
+ * @param pInput Pointer to input data
+ * @param pSizeInBytes Size of input data
+ * @param pKey Key/Usage of the property (AI_MATKEY_XXX)
+ * @param type Set by the AI_MATKEY_XXX macro
+ * @param index Set by the AI_MATKEY_XXX macro
+ * @param pType Type information hint */
+ aiReturn AddBinaryProperty(const void *pInput,
+ unsigned int pSizeInBytes,
+ const char *pKey,
+ unsigned int type,
+ unsigned int index,
+ aiPropertyTypeInfo pType);
+
+ // ------------------------------------------------------------------------------
+ /** @brief Add a string property with a given key and type info to the
+ * material structure
+ *
+ * @param pInput Input string
+ * @param pKey Key/Usage of the property (AI_MATKEY_XXX)
+ * @param type Set by the AI_MATKEY_XXX macro
+ * @param index Set by the AI_MATKEY_XXX macro */
+ aiReturn AddProperty(const aiString *pInput,
+ const char *pKey,
+ unsigned int type = 0,
+ unsigned int index = 0);
+
+ // ------------------------------------------------------------------------------
+ /** @brief Add a property with a given key to the material structure
+ * @param pInput Pointer to the input data
+ * @param pNumValues Number of values in the array
+ * @param pKey Key/Usage of the property (AI_MATKEY_XXX)
+ * @param type Set by the AI_MATKEY_XXX macro
+ * @param index Set by the AI_MATKEY_XXX macro */
+ template <class TYPE>
+ aiReturn AddProperty(const TYPE *pInput,
+ unsigned int pNumValues,
+ const char *pKey,
+ unsigned int type = 0,
+ unsigned int index = 0);
+
+ aiReturn AddProperty(const aiVector3D *pInput,
+ unsigned int pNumValues,
+ const char *pKey,
+ unsigned int type = 0,
+ unsigned int index = 0);
+
+ aiReturn AddProperty(const aiColor3D *pInput,
+ unsigned int pNumValues,
+ const char *pKey,
+ unsigned int type = 0,
+ unsigned int index = 0);
+
+ aiReturn AddProperty(const aiColor4D *pInput,
+ unsigned int pNumValues,
+ const char *pKey,
+ unsigned int type = 0,
+ unsigned int index = 0);
+
+ aiReturn AddProperty(const int *pInput,
+ unsigned int pNumValues,
+ const char *pKey,
+ unsigned int type = 0,
+ unsigned int index = 0);
+
+ aiReturn AddProperty(const float *pInput,
+ unsigned int pNumValues,
+ const char *pKey,
+ unsigned int type = 0,
+ unsigned int index = 0);
+
+ aiReturn AddProperty(const double *pInput,
+ unsigned int pNumValues,
+ const char *pKey,
+ unsigned int type = 0,
+ unsigned int index = 0);
+
+ aiReturn AddProperty(const aiUVTransform *pInput,
+ unsigned int pNumValues,
+ const char *pKey,
+ unsigned int type = 0,
+ unsigned int index = 0);
+
+ // ------------------------------------------------------------------------------
+ /** @brief Remove a given key from the list.
+ *
+ * The function fails if the key isn't found
+ * @param pKey Key to be deleted
+ * @param type Set by the AI_MATKEY_XXX macro
+ * @param index Set by the AI_MATKEY_XXX macro */
+ aiReturn RemoveProperty(const char *pKey,
+ unsigned int type = 0,
+ unsigned int index = 0);
+
+ // ------------------------------------------------------------------------------
+ /** @brief Removes all properties from the material.
+ *
+ * The data array remains allocated so adding new properties is quite fast. */
+ void Clear();
+
+ // ------------------------------------------------------------------------------
+ /** Copy the property list of a material
+ * @param pcDest Destination material
+ * @param pcSrc Source material
+ */
+ static void CopyPropertyList(aiMaterial *pcDest,
+ const aiMaterial *pcSrc);
+
+#endif
+
+ /** List of all material properties loaded. */
+ C_STRUCT aiMaterialProperty **mProperties;
+
+ /** Number of properties in the data base */
+ unsigned int mNumProperties;
+
+ /** Storage allocated */
+ unsigned int mNumAllocated;
+};
+
+// Go back to extern "C" again
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_NAME "?mat.name", 0, 0
+#define AI_MATKEY_TWOSIDED "$mat.twosided", 0, 0
+#define AI_MATKEY_SHADING_MODEL "$mat.shadingm", 0, 0
+#define AI_MATKEY_ENABLE_WIREFRAME "$mat.wireframe", 0, 0
+#define AI_MATKEY_BLEND_FUNC "$mat.blend", 0, 0
+#define AI_MATKEY_OPACITY "$mat.opacity", 0, 0
+#define AI_MATKEY_TRANSPARENCYFACTOR "$mat.transparencyfactor", 0, 0
+#define AI_MATKEY_BUMPSCALING "$mat.bumpscaling", 0, 0
+#define AI_MATKEY_SHININESS "$mat.shininess", 0, 0
+#define AI_MATKEY_REFLECTIVITY "$mat.reflectivity", 0, 0
+#define AI_MATKEY_SHININESS_STRENGTH "$mat.shinpercent", 0, 0
+#define AI_MATKEY_REFRACTI "$mat.refracti", 0, 0
+#define AI_MATKEY_COLOR_DIFFUSE "$clr.diffuse", 0, 0
+#define AI_MATKEY_COLOR_AMBIENT "$clr.ambient", 0, 0
+#define AI_MATKEY_COLOR_SPECULAR "$clr.specular", 0, 0
+#define AI_MATKEY_COLOR_EMISSIVE "$clr.emissive", 0, 0
+#define AI_MATKEY_COLOR_TRANSPARENT "$clr.transparent", 0, 0
+#define AI_MATKEY_COLOR_REFLECTIVE "$clr.reflective", 0, 0
+#define AI_MATKEY_GLOBAL_BACKGROUND_IMAGE "?bg.global", 0, 0
+#define AI_MATKEY_GLOBAL_SHADERLANG "?sh.lang", 0, 0
+#define AI_MATKEY_SHADER_VERTEX "?sh.vs", 0, 0
+#define AI_MATKEY_SHADER_FRAGMENT "?sh.fs", 0, 0
+#define AI_MATKEY_SHADER_GEO "?sh.gs", 0, 0
+#define AI_MATKEY_SHADER_TESSELATION "?sh.ts", 0, 0
+#define AI_MATKEY_SHADER_PRIMITIVE "?sh.ps", 0, 0
+#define AI_MATKEY_SHADER_COMPUTE "?sh.cs", 0, 0
+
+// ---------------------------------------------------------------------------
+// PBR material support
+// --------------------
+// Properties defining PBR rendering techniques
+#define AI_MATKEY_USE_COLOR_MAP "$mat.useColorMap", 0, 0
+
+// Metallic/Roughness Workflow
+// ---------------------------
+// Base RGBA color factor. Will be multiplied by final base color texture values if extant
+// Note: Importers may choose to copy this into AI_MATKEY_COLOR_DIFFUSE for compatibility
+// with renderers and formats that do not support Metallic/Roughness PBR
+#define AI_MATKEY_BASE_COLOR "$clr.base", 0, 0
+#define AI_MATKEY_BASE_COLOR_TEXTURE aiTextureType_BASE_COLOR, 0
+#define AI_MATKEY_USE_METALLIC_MAP "$mat.useMetallicMap", 0, 0
+// Metallic factor. 0.0 = Full Dielectric, 1.0 = Full Metal
+#define AI_MATKEY_METALLIC_FACTOR "$mat.metallicFactor", 0, 0
+#define AI_MATKEY_METALLIC_TEXTURE aiTextureType_METALNESS, 0
+#define AI_MATKEY_USE_ROUGHNESS_MAP "$mat.useRoughnessMap", 0, 0
+// Roughness factor. 0.0 = Perfectly Smooth, 1.0 = Completely Rough
+#define AI_MATKEY_ROUGHNESS_FACTOR "$mat.roughnessFactor", 0, 0
+#define AI_MATKEY_ROUGHNESS_TEXTURE aiTextureType_DIFFUSE_ROUGHNESS, 0
+// Anisotropy factor. 0.0 = isotropic, 1.0 = anisotropy along tangent direction,
+// -1.0 = anisotropy along bitangent direction
+#define AI_MATKEY_ANISOTROPY_FACTOR "$mat.anisotropyFactor", 0, 0
+
+// Specular/Glossiness Workflow
+// ---------------------------
+// Diffuse/Albedo Color. Note: Pure Metals have a diffuse of {0,0,0}
+// AI_MATKEY_COLOR_DIFFUSE
+// Specular Color.
+// Note: Metallic/Roughness may also have a Specular Color
+// AI_MATKEY_COLOR_SPECULAR
+#define AI_MATKEY_SPECULAR_FACTOR "$mat.specularFactor", 0, 0
+// Glossiness factor. 0.0 = Completely Rough, 1.0 = Perfectly Smooth
+#define AI_MATKEY_GLOSSINESS_FACTOR "$mat.glossinessFactor", 0, 0
+
+// Sheen
+// -----
+// Sheen base RGB color. Default {0,0,0}
+#define AI_MATKEY_SHEEN_COLOR_FACTOR "$clr.sheen.factor", 0, 0
+// Sheen Roughness Factor.
+#define AI_MATKEY_SHEEN_ROUGHNESS_FACTOR "$mat.sheen.roughnessFactor", 0, 0
+#define AI_MATKEY_SHEEN_COLOR_TEXTURE aiTextureType_SHEEN, 0
+#define AI_MATKEY_SHEEN_ROUGHNESS_TEXTURE aiTextureType_SHEEN, 1
+
+// Clearcoat
+// ---------
+// Clearcoat layer intensity. 0.0 = none (disabled)
+#define AI_MATKEY_CLEARCOAT_FACTOR "$mat.clearcoat.factor", 0, 0
+#define AI_MATKEY_CLEARCOAT_ROUGHNESS_FACTOR "$mat.clearcoat.roughnessFactor", 0, 0
+#define AI_MATKEY_CLEARCOAT_TEXTURE aiTextureType_CLEARCOAT, 0
+#define AI_MATKEY_CLEARCOAT_ROUGHNESS_TEXTURE aiTextureType_CLEARCOAT, 1
+#define AI_MATKEY_CLEARCOAT_NORMAL_TEXTURE aiTextureType_CLEARCOAT, 2
+
+// Transmission
+// ------------
+// https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_transmission
+// Base percentage of light transmitted through the surface. 0.0 = Opaque, 1.0 = Fully transparent
+#define AI_MATKEY_TRANSMISSION_FACTOR "$mat.transmission.factor", 0, 0
+// Texture defining percentage of light transmitted through the surface.
+// Multiplied by AI_MATKEY_TRANSMISSION_FACTOR
+#define AI_MATKEY_TRANSMISSION_TEXTURE aiTextureType_TRANSMISSION, 0
+
+// Volume
+// ------------
+// https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_materials_volume
+// The thickness of the volume beneath the surface. If the value is 0 the material is thin-walled. Otherwise the material is a volume boundary.
+#define AI_MATKEY_VOLUME_THICKNESS_FACTOR "$mat.volume.thicknessFactor", 0, 0
+// Texture that defines the thickness.
+// Multiplied by AI_MATKEY_THICKNESS_FACTOR
+#define AI_MATKEY_VOLUME_THICKNESS_TEXTURE aiTextureType_TRANSMISSION, 1
+// Density of the medium given as the average distance that light travels in the medium before interacting with a particle.
+#define AI_MATKEY_VOLUME_ATTENUATION_DISTANCE "$mat.volume.attenuationDistance", 0, 0
+// The color that white light turns into due to absorption when reaching the attenuation distance.
+#define AI_MATKEY_VOLUME_ATTENUATION_COLOR "$mat.volume.attenuationColor", 0, 0
+
+// Emissive
+// --------
+#define AI_MATKEY_USE_EMISSIVE_MAP "$mat.useEmissiveMap", 0, 0
+#define AI_MATKEY_EMISSIVE_INTENSITY "$mat.emissiveIntensity", 0, 0
+#define AI_MATKEY_USE_AO_MAP "$mat.useAOMap", 0, 0
+
+// ---------------------------------------------------------------------------
+// Pure key names for all texture-related properties
+//! @cond MATS_DOC_FULL
+#define _AI_MATKEY_TEXTURE_BASE "$tex.file"
+#define _AI_MATKEY_UVWSRC_BASE "$tex.uvwsrc"
+#define _AI_MATKEY_TEXOP_BASE "$tex.op"
+#define _AI_MATKEY_MAPPING_BASE "$tex.mapping"
+#define _AI_MATKEY_TEXBLEND_BASE "$tex.blend"
+#define _AI_MATKEY_MAPPINGMODE_U_BASE "$tex.mapmodeu"
+#define _AI_MATKEY_MAPPINGMODE_V_BASE "$tex.mapmodev"
+#define _AI_MATKEY_TEXMAP_AXIS_BASE "$tex.mapaxis"
+#define _AI_MATKEY_UVTRANSFORM_BASE "$tex.uvtrafo"
+#define _AI_MATKEY_TEXFLAGS_BASE "$tex.flags"
+//! @endcond
+
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_TEXTURE(type, N) _AI_MATKEY_TEXTURE_BASE, type, N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_TEXTURE_DIFFUSE(N) \
+ AI_MATKEY_TEXTURE(aiTextureType_DIFFUSE, N)
+
+#define AI_MATKEY_TEXTURE_SPECULAR(N) \
+ AI_MATKEY_TEXTURE(aiTextureType_SPECULAR, N)
+
+#define AI_MATKEY_TEXTURE_AMBIENT(N) \
+ AI_MATKEY_TEXTURE(aiTextureType_AMBIENT, N)
+
+#define AI_MATKEY_TEXTURE_EMISSIVE(N) \
+ AI_MATKEY_TEXTURE(aiTextureType_EMISSIVE, N)
+
+#define AI_MATKEY_TEXTURE_NORMALS(N) \
+ AI_MATKEY_TEXTURE(aiTextureType_NORMALS, N)
+
+#define AI_MATKEY_TEXTURE_HEIGHT(N) \
+ AI_MATKEY_TEXTURE(aiTextureType_HEIGHT, N)
+
+#define AI_MATKEY_TEXTURE_SHININESS(N) \
+ AI_MATKEY_TEXTURE(aiTextureType_SHININESS, N)
+
+#define AI_MATKEY_TEXTURE_OPACITY(N) \
+ AI_MATKEY_TEXTURE(aiTextureType_OPACITY, N)
+
+#define AI_MATKEY_TEXTURE_DISPLACEMENT(N) \
+ AI_MATKEY_TEXTURE(aiTextureType_DISPLACEMENT, N)
+
+#define AI_MATKEY_TEXTURE_LIGHTMAP(N) \
+ AI_MATKEY_TEXTURE(aiTextureType_LIGHTMAP, N)
+
+#define AI_MATKEY_TEXTURE_REFLECTION(N) \
+ AI_MATKEY_TEXTURE(aiTextureType_REFLECTION, N)
+
+//! @endcond
+
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_UVWSRC(type, N) _AI_MATKEY_UVWSRC_BASE, type, N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_UVWSRC_DIFFUSE(N) \
+ AI_MATKEY_UVWSRC(aiTextureType_DIFFUSE, N)
+
+#define AI_MATKEY_UVWSRC_SPECULAR(N) \
+ AI_MATKEY_UVWSRC(aiTextureType_SPECULAR, N)
+
+#define AI_MATKEY_UVWSRC_AMBIENT(N) \
+ AI_MATKEY_UVWSRC(aiTextureType_AMBIENT, N)
+
+#define AI_MATKEY_UVWSRC_EMISSIVE(N) \
+ AI_MATKEY_UVWSRC(aiTextureType_EMISSIVE, N)
+
+#define AI_MATKEY_UVWSRC_NORMALS(N) \
+ AI_MATKEY_UVWSRC(aiTextureType_NORMALS, N)
+
+#define AI_MATKEY_UVWSRC_HEIGHT(N) \
+ AI_MATKEY_UVWSRC(aiTextureType_HEIGHT, N)
+
+#define AI_MATKEY_UVWSRC_SHININESS(N) \
+ AI_MATKEY_UVWSRC(aiTextureType_SHININESS, N)
+
+#define AI_MATKEY_UVWSRC_OPACITY(N) \
+ AI_MATKEY_UVWSRC(aiTextureType_OPACITY, N)
+
+#define AI_MATKEY_UVWSRC_DISPLACEMENT(N) \
+ AI_MATKEY_UVWSRC(aiTextureType_DISPLACEMENT, N)
+
+#define AI_MATKEY_UVWSRC_LIGHTMAP(N) \
+ AI_MATKEY_UVWSRC(aiTextureType_LIGHTMAP, N)
+
+#define AI_MATKEY_UVWSRC_REFLECTION(N) \
+ AI_MATKEY_UVWSRC(aiTextureType_REFLECTION, N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_TEXOP(type, N) _AI_MATKEY_TEXOP_BASE, type, N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_TEXOP_DIFFUSE(N) \
+ AI_MATKEY_TEXOP(aiTextureType_DIFFUSE, N)
+
+#define AI_MATKEY_TEXOP_SPECULAR(N) \
+ AI_MATKEY_TEXOP(aiTextureType_SPECULAR, N)
+
+#define AI_MATKEY_TEXOP_AMBIENT(N) \
+ AI_MATKEY_TEXOP(aiTextureType_AMBIENT, N)
+
+#define AI_MATKEY_TEXOP_EMISSIVE(N) \
+ AI_MATKEY_TEXOP(aiTextureType_EMISSIVE, N)
+
+#define AI_MATKEY_TEXOP_NORMALS(N) \
+ AI_MATKEY_TEXOP(aiTextureType_NORMALS, N)
+
+#define AI_MATKEY_TEXOP_HEIGHT(N) \
+ AI_MATKEY_TEXOP(aiTextureType_HEIGHT, N)
+
+#define AI_MATKEY_TEXOP_SHININESS(N) \
+ AI_MATKEY_TEXOP(aiTextureType_SHININESS, N)
+
+#define AI_MATKEY_TEXOP_OPACITY(N) \
+ AI_MATKEY_TEXOP(aiTextureType_OPACITY, N)
+
+#define AI_MATKEY_TEXOP_DISPLACEMENT(N) \
+ AI_MATKEY_TEXOP(aiTextureType_DISPLACEMENT, N)
+
+#define AI_MATKEY_TEXOP_LIGHTMAP(N) \
+ AI_MATKEY_TEXOP(aiTextureType_LIGHTMAP, N)
+
+#define AI_MATKEY_TEXOP_REFLECTION(N) \
+ AI_MATKEY_TEXOP(aiTextureType_REFLECTION, N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_MAPPING(type, N) _AI_MATKEY_MAPPING_BASE, type, N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_MAPPING_DIFFUSE(N) \
+ AI_MATKEY_MAPPING(aiTextureType_DIFFUSE, N)
+
+#define AI_MATKEY_MAPPING_SPECULAR(N) \
+ AI_MATKEY_MAPPING(aiTextureType_SPECULAR, N)
+
+#define AI_MATKEY_MAPPING_AMBIENT(N) \
+ AI_MATKEY_MAPPING(aiTextureType_AMBIENT, N)
+
+#define AI_MATKEY_MAPPING_EMISSIVE(N) \
+ AI_MATKEY_MAPPING(aiTextureType_EMISSIVE, N)
+
+#define AI_MATKEY_MAPPING_NORMALS(N) \
+ AI_MATKEY_MAPPING(aiTextureType_NORMALS, N)
+
+#define AI_MATKEY_MAPPING_HEIGHT(N) \
+ AI_MATKEY_MAPPING(aiTextureType_HEIGHT, N)
+
+#define AI_MATKEY_MAPPING_SHININESS(N) \
+ AI_MATKEY_MAPPING(aiTextureType_SHININESS, N)
+
+#define AI_MATKEY_MAPPING_OPACITY(N) \
+ AI_MATKEY_MAPPING(aiTextureType_OPACITY, N)
+
+#define AI_MATKEY_MAPPING_DISPLACEMENT(N) \
+ AI_MATKEY_MAPPING(aiTextureType_DISPLACEMENT, N)
+
+#define AI_MATKEY_MAPPING_LIGHTMAP(N) \
+ AI_MATKEY_MAPPING(aiTextureType_LIGHTMAP, N)
+
+#define AI_MATKEY_MAPPING_REFLECTION(N) \
+ AI_MATKEY_MAPPING(aiTextureType_REFLECTION, N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_TEXBLEND(type, N) _AI_MATKEY_TEXBLEND_BASE, type, N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_TEXBLEND_DIFFUSE(N) \
+ AI_MATKEY_TEXBLEND(aiTextureType_DIFFUSE, N)
+
+#define AI_MATKEY_TEXBLEND_SPECULAR(N) \
+ AI_MATKEY_TEXBLEND(aiTextureType_SPECULAR, N)
+
+#define AI_MATKEY_TEXBLEND_AMBIENT(N) \
+ AI_MATKEY_TEXBLEND(aiTextureType_AMBIENT, N)
+
+#define AI_MATKEY_TEXBLEND_EMISSIVE(N) \
+ AI_MATKEY_TEXBLEND(aiTextureType_EMISSIVE, N)
+
+#define AI_MATKEY_TEXBLEND_NORMALS(N) \
+ AI_MATKEY_TEXBLEND(aiTextureType_NORMALS, N)
+
+#define AI_MATKEY_TEXBLEND_HEIGHT(N) \
+ AI_MATKEY_TEXBLEND(aiTextureType_HEIGHT, N)
+
+#define AI_MATKEY_TEXBLEND_SHININESS(N) \
+ AI_MATKEY_TEXBLEND(aiTextureType_SHININESS, N)
+
+#define AI_MATKEY_TEXBLEND_OPACITY(N) \
+ AI_MATKEY_TEXBLEND(aiTextureType_OPACITY, N)
+
+#define AI_MATKEY_TEXBLEND_DISPLACEMENT(N) \
+ AI_MATKEY_TEXBLEND(aiTextureType_DISPLACEMENT, N)
+
+#define AI_MATKEY_TEXBLEND_LIGHTMAP(N) \
+ AI_MATKEY_TEXBLEND(aiTextureType_LIGHTMAP, N)
+
+#define AI_MATKEY_TEXBLEND_REFLECTION(N) \
+ AI_MATKEY_TEXBLEND(aiTextureType_REFLECTION, N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_MAPPINGMODE_U(type, N) _AI_MATKEY_MAPPINGMODE_U_BASE, type, N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_MAPPINGMODE_U_DIFFUSE(N) \
+ AI_MATKEY_MAPPINGMODE_U(aiTextureType_DIFFUSE, N)
+
+#define AI_MATKEY_MAPPINGMODE_U_SPECULAR(N) \
+ AI_MATKEY_MAPPINGMODE_U(aiTextureType_SPECULAR, N)
+
+#define AI_MATKEY_MAPPINGMODE_U_AMBIENT(N) \
+ AI_MATKEY_MAPPINGMODE_U(aiTextureType_AMBIENT, N)
+
+#define AI_MATKEY_MAPPINGMODE_U_EMISSIVE(N) \
+ AI_MATKEY_MAPPINGMODE_U(aiTextureType_EMISSIVE, N)
+
+#define AI_MATKEY_MAPPINGMODE_U_NORMALS(N) \
+ AI_MATKEY_MAPPINGMODE_U(aiTextureType_NORMALS, N)
+
+#define AI_MATKEY_MAPPINGMODE_U_HEIGHT(N) \
+ AI_MATKEY_MAPPINGMODE_U(aiTextureType_HEIGHT, N)
+
+#define AI_MATKEY_MAPPINGMODE_U_SHININESS(N) \
+ AI_MATKEY_MAPPINGMODE_U(aiTextureType_SHININESS, N)
+
+#define AI_MATKEY_MAPPINGMODE_U_OPACITY(N) \
+ AI_MATKEY_MAPPINGMODE_U(aiTextureType_OPACITY, N)
+
+#define AI_MATKEY_MAPPINGMODE_U_DISPLACEMENT(N) \
+ AI_MATKEY_MAPPINGMODE_U(aiTextureType_DISPLACEMENT, N)
+
+#define AI_MATKEY_MAPPINGMODE_U_LIGHTMAP(N) \
+ AI_MATKEY_MAPPINGMODE_U(aiTextureType_LIGHTMAP, N)
+
+#define AI_MATKEY_MAPPINGMODE_U_REFLECTION(N) \
+ AI_MATKEY_MAPPINGMODE_U(aiTextureType_REFLECTION, N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_MAPPINGMODE_V(type, N) _AI_MATKEY_MAPPINGMODE_V_BASE, type, N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_MAPPINGMODE_V_DIFFUSE(N) \
+ AI_MATKEY_MAPPINGMODE_V(aiTextureType_DIFFUSE, N)
+
+#define AI_MATKEY_MAPPINGMODE_V_SPECULAR(N) \
+ AI_MATKEY_MAPPINGMODE_V(aiTextureType_SPECULAR, N)
+
+#define AI_MATKEY_MAPPINGMODE_V_AMBIENT(N) \
+ AI_MATKEY_MAPPINGMODE_V(aiTextureType_AMBIENT, N)
+
+#define AI_MATKEY_MAPPINGMODE_V_EMISSIVE(N) \
+ AI_MATKEY_MAPPINGMODE_V(aiTextureType_EMISSIVE, N)
+
+#define AI_MATKEY_MAPPINGMODE_V_NORMALS(N) \
+ AI_MATKEY_MAPPINGMODE_V(aiTextureType_NORMALS, N)
+
+#define AI_MATKEY_MAPPINGMODE_V_HEIGHT(N) \
+ AI_MATKEY_MAPPINGMODE_V(aiTextureType_HEIGHT, N)
+
+#define AI_MATKEY_MAPPINGMODE_V_SHININESS(N) \
+ AI_MATKEY_MAPPINGMODE_V(aiTextureType_SHININESS, N)
+
+#define AI_MATKEY_MAPPINGMODE_V_OPACITY(N) \
+ AI_MATKEY_MAPPINGMODE_V(aiTextureType_OPACITY, N)
+
+#define AI_MATKEY_MAPPINGMODE_V_DISPLACEMENT(N) \
+ AI_MATKEY_MAPPINGMODE_V(aiTextureType_DISPLACEMENT, N)
+
+#define AI_MATKEY_MAPPINGMODE_V_LIGHTMAP(N) \
+ AI_MATKEY_MAPPINGMODE_V(aiTextureType_LIGHTMAP, N)
+
+#define AI_MATKEY_MAPPINGMODE_V_REFLECTION(N) \
+ AI_MATKEY_MAPPINGMODE_V(aiTextureType_REFLECTION, N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_TEXMAP_AXIS(type, N) _AI_MATKEY_TEXMAP_AXIS_BASE, type, N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_TEXMAP_AXIS_DIFFUSE(N) \
+ AI_MATKEY_TEXMAP_AXIS(aiTextureType_DIFFUSE, N)
+
+#define AI_MATKEY_TEXMAP_AXIS_SPECULAR(N) \
+ AI_MATKEY_TEXMAP_AXIS(aiTextureType_SPECULAR, N)
+
+#define AI_MATKEY_TEXMAP_AXIS_AMBIENT(N) \
+ AI_MATKEY_TEXMAP_AXIS(aiTextureType_AMBIENT, N)
+
+#define AI_MATKEY_TEXMAP_AXIS_EMISSIVE(N) \
+ AI_MATKEY_TEXMAP_AXIS(aiTextureType_EMISSIVE, N)
+
+#define AI_MATKEY_TEXMAP_AXIS_NORMALS(N) \
+ AI_MATKEY_TEXMAP_AXIS(aiTextureType_NORMALS, N)
+
+#define AI_MATKEY_TEXMAP_AXIS_HEIGHT(N) \
+ AI_MATKEY_TEXMAP_AXIS(aiTextureType_HEIGHT, N)
+
+#define AI_MATKEY_TEXMAP_AXIS_SHININESS(N) \
+ AI_MATKEY_TEXMAP_AXIS(aiTextureType_SHININESS, N)
+
+#define AI_MATKEY_TEXMAP_AXIS_OPACITY(N) \
+ AI_MATKEY_TEXMAP_AXIS(aiTextureType_OPACITY, N)
+
+#define AI_MATKEY_TEXMAP_AXIS_DISPLACEMENT(N) \
+ AI_MATKEY_TEXMAP_AXIS(aiTextureType_DISPLACEMENT, N)
+
+#define AI_MATKEY_TEXMAP_AXIS_LIGHTMAP(N) \
+ AI_MATKEY_TEXMAP_AXIS(aiTextureType_LIGHTMAP, N)
+
+#define AI_MATKEY_TEXMAP_AXIS_REFLECTION(N) \
+ AI_MATKEY_TEXMAP_AXIS(aiTextureType_REFLECTION, N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_UVTRANSFORM(type, N) _AI_MATKEY_UVTRANSFORM_BASE, type, N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_UVTRANSFORM_DIFFUSE(N) \
+ AI_MATKEY_UVTRANSFORM(aiTextureType_DIFFUSE, N)
+
+#define AI_MATKEY_UVTRANSFORM_SPECULAR(N) \
+ AI_MATKEY_UVTRANSFORM(aiTextureType_SPECULAR, N)
+
+#define AI_MATKEY_UVTRANSFORM_AMBIENT(N) \
+ AI_MATKEY_UVTRANSFORM(aiTextureType_AMBIENT, N)
+
+#define AI_MATKEY_UVTRANSFORM_EMISSIVE(N) \
+ AI_MATKEY_UVTRANSFORM(aiTextureType_EMISSIVE, N)
+
+#define AI_MATKEY_UVTRANSFORM_NORMALS(N) \
+ AI_MATKEY_UVTRANSFORM(aiTextureType_NORMALS, N)
+
+#define AI_MATKEY_UVTRANSFORM_HEIGHT(N) \
+ AI_MATKEY_UVTRANSFORM(aiTextureType_HEIGHT, N)
+
+#define AI_MATKEY_UVTRANSFORM_SHININESS(N) \
+ AI_MATKEY_UVTRANSFORM(aiTextureType_SHININESS, N)
+
+#define AI_MATKEY_UVTRANSFORM_OPACITY(N) \
+ AI_MATKEY_UVTRANSFORM(aiTextureType_OPACITY, N)
+
+#define AI_MATKEY_UVTRANSFORM_DISPLACEMENT(N) \
+ AI_MATKEY_UVTRANSFORM(aiTextureType_DISPLACEMENT, N)
+
+#define AI_MATKEY_UVTRANSFORM_LIGHTMAP(N) \
+ AI_MATKEY_UVTRANSFORM(aiTextureType_LIGHTMAP, N)
+
+#define AI_MATKEY_UVTRANSFORM_REFLECTION(N) \
+ AI_MATKEY_UVTRANSFORM(aiTextureType_REFLECTION, N)
+
+#define AI_MATKEY_UVTRANSFORM_UNKNOWN(N) \
+ AI_MATKEY_UVTRANSFORM(aiTextureType_UNKNOWN, N)
+
+//! @endcond
+// ---------------------------------------------------------------------------
+#define AI_MATKEY_TEXFLAGS(type, N) _AI_MATKEY_TEXFLAGS_BASE, type, N
+
+// For backward compatibility and simplicity
+//! @cond MATS_DOC_FULL
+#define AI_MATKEY_TEXFLAGS_DIFFUSE(N) \
+ AI_MATKEY_TEXFLAGS(aiTextureType_DIFFUSE, N)
+
+#define AI_MATKEY_TEXFLAGS_SPECULAR(N) \
+ AI_MATKEY_TEXFLAGS(aiTextureType_SPECULAR, N)
+
+#define AI_MATKEY_TEXFLAGS_AMBIENT(N) \
+ AI_MATKEY_TEXFLAGS(aiTextureType_AMBIENT, N)
+
+#define AI_MATKEY_TEXFLAGS_EMISSIVE(N) \
+ AI_MATKEY_TEXFLAGS(aiTextureType_EMISSIVE, N)
+
+#define AI_MATKEY_TEXFLAGS_NORMALS(N) \
+ AI_MATKEY_TEXFLAGS(aiTextureType_NORMALS, N)
+
+#define AI_MATKEY_TEXFLAGS_HEIGHT(N) \
+ AI_MATKEY_TEXFLAGS(aiTextureType_HEIGHT, N)
+
+#define AI_MATKEY_TEXFLAGS_SHININESS(N) \
+ AI_MATKEY_TEXFLAGS(aiTextureType_SHININESS, N)
+
+#define AI_MATKEY_TEXFLAGS_OPACITY(N) \
+ AI_MATKEY_TEXFLAGS(aiTextureType_OPACITY, N)
+
+#define AI_MATKEY_TEXFLAGS_DISPLACEMENT(N) \
+ AI_MATKEY_TEXFLAGS(aiTextureType_DISPLACEMENT, N)
+
+#define AI_MATKEY_TEXFLAGS_LIGHTMAP(N) \
+ AI_MATKEY_TEXFLAGS(aiTextureType_LIGHTMAP, N)
+
+#define AI_MATKEY_TEXFLAGS_REFLECTION(N) \
+ AI_MATKEY_TEXFLAGS(aiTextureType_REFLECTION, N)
+
+#define AI_MATKEY_TEXFLAGS_UNKNOWN(N) \
+ AI_MATKEY_TEXFLAGS(aiTextureType_UNKNOWN, N)
+
+//! @endcond
+//!
+// ---------------------------------------------------------------------------
+/** @brief Retrieve a material property with a specific key from the material
+ *
+ * @param pMat Pointer to the input material. May not be NULL
+ * @param pKey Key to search for. One of the AI_MATKEY_XXX constants.
+ * @param type Specifies the type of the texture to be retrieved (
+ * e.g. diffuse, specular, height map ...)
+ * @param index Index of the texture to be retrieved.
+ * @param pPropOut Pointer to receive a pointer to a valid aiMaterialProperty
+ * structure or NULL if the key has not been found. */
+// ---------------------------------------------------------------------------
+ASSIMP_API C_ENUM aiReturn aiGetMaterialProperty(
+ const C_STRUCT aiMaterial *pMat,
+ const char *pKey,
+ unsigned int type,
+ unsigned int index,
+ const C_STRUCT aiMaterialProperty **pPropOut);
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve an array of float values with a specific key
+ * from the material
+ *
+ * Pass one of the AI_MATKEY_XXX constants for the last three parameters (the
+ * example reads the #AI_MATKEY_UVTRANSFORM property of the first diffuse texture)
+ * @code
+ * aiUVTransform trafo;
+ * unsigned int max = sizeof(aiUVTransform);
+ * if (AI_SUCCESS != aiGetMaterialFloatArray(mat, AI_MATKEY_UVTRANSFORM(aiTextureType_DIFFUSE,0),
+ * (float*)&trafo, &max) || sizeof(aiUVTransform) != max)
+ * {
+ * // error handling
+ * }
+ * @endcode
+ *
+ * @param pMat Pointer to the input material. May not be NULL
+ * @param pKey Key to search for. One of the AI_MATKEY_XXX constants.
+ * @param pOut Pointer to a buffer to receive the result.
+ * @param pMax Specifies the size of the given buffer, in float's.
+ * Receives the number of values (not bytes!) read.
+ * @param type (see the code sample above)
+ * @param index (see the code sample above)
+ * @return Specifies whether the key has been found. If not, the output
+ * arrays remains unmodified and pMax is set to 0.*/
+// ---------------------------------------------------------------------------
+ASSIMP_API C_ENUM aiReturn aiGetMaterialFloatArray(
+ const C_STRUCT aiMaterial *pMat,
+ const char *pKey,
+ unsigned int type,
+ unsigned int index,
+ ai_real *pOut,
+ unsigned int *pMax);
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve a single float property with a specific key from the material.
+*
+* Pass one of the AI_MATKEY_XXX constants for the last three parameters (the
+* example reads the #AI_MATKEY_SHININESS_STRENGTH property of the first diffuse texture)
+* @code
+* float specStrength = 1.f; // default value, remains unmodified if we fail.
+* aiGetMaterialFloat(mat, AI_MATKEY_SHININESS_STRENGTH,
+* (float*)&specStrength);
+* @endcode
+*
+* @param pMat Pointer to the input material. May not be NULL
+* @param pKey Key to search for. One of the AI_MATKEY_XXX constants.
+* @param pOut Receives the output float.
+* @param type (see the code sample above)
+* @param index (see the code sample above)
+* @return Specifies whether the key has been found. If not, the output
+* float remains unmodified.*/
+// ---------------------------------------------------------------------------
+inline aiReturn aiGetMaterialFloat(const C_STRUCT aiMaterial *pMat,
+ const char *pKey,
+ unsigned int type,
+ unsigned int index,
+ ai_real *pOut) {
+ return aiGetMaterialFloatArray(pMat, pKey, type, index, pOut, (unsigned int *)0x0);
+}
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve an array of integer values with a specific key
+ * from a material
+ *
+ * See the sample for aiGetMaterialFloatArray for more information.*/
+ASSIMP_API C_ENUM aiReturn aiGetMaterialIntegerArray(const C_STRUCT aiMaterial *pMat,
+ const char *pKey,
+ unsigned int type,
+ unsigned int index,
+ int *pOut,
+ unsigned int *pMax);
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve an integer property with a specific key from a material
+ *
+ * See the sample for aiGetMaterialFloat for more information.*/
+// ---------------------------------------------------------------------------
+inline aiReturn aiGetMaterialInteger(const C_STRUCT aiMaterial *pMat,
+ const char *pKey,
+ unsigned int type,
+ unsigned int index,
+ int *pOut) {
+ return aiGetMaterialIntegerArray(pMat, pKey, type, index, pOut, (unsigned int *)0x0);
+}
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve a color value from the material property table
+*
+* See the sample for aiGetMaterialFloat for more information*/
+// ---------------------------------------------------------------------------
+ASSIMP_API C_ENUM aiReturn aiGetMaterialColor(const C_STRUCT aiMaterial *pMat,
+ const char *pKey,
+ unsigned int type,
+ unsigned int index,
+ C_STRUCT aiColor4D *pOut);
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve a aiUVTransform value from the material property table
+*
+* See the sample for aiGetMaterialFloat for more information*/
+// ---------------------------------------------------------------------------
+ASSIMP_API C_ENUM aiReturn aiGetMaterialUVTransform(const C_STRUCT aiMaterial *pMat,
+ const char *pKey,
+ unsigned int type,
+ unsigned int index,
+ C_STRUCT aiUVTransform *pOut);
+
+// ---------------------------------------------------------------------------
+/** @brief Retrieve a string from the material property table
+*
+* See the sample for aiGetMaterialFloat for more information.*/
+// ---------------------------------------------------------------------------
+ASSIMP_API C_ENUM aiReturn aiGetMaterialString(const C_STRUCT aiMaterial *pMat,
+ const char *pKey,
+ unsigned int type,
+ unsigned int index,
+ C_STRUCT aiString *pOut);
+
+// ---------------------------------------------------------------------------
+/** Get the number of textures for a particular texture type.
+ * @param[in] pMat Pointer to the input material. May not be NULL
+ * @param type Texture type to check for
+ * @return Number of textures for this type.
+ * @note A texture can be easily queried using #aiGetMaterialTexture() */
+// ---------------------------------------------------------------------------
+ASSIMP_API unsigned int aiGetMaterialTextureCount(const C_STRUCT aiMaterial *pMat,
+ C_ENUM aiTextureType type);
+
+// ---------------------------------------------------------------------------
+/** @brief Helper function to get all values pertaining to a particular
+ * texture slot from a material structure.
+ *
+ * This function is provided just for convenience. You could also read the
+ * texture by parsing all of its properties manually. This function bundles
+ * all of them in a huge function monster.
+ *
+ * @param[in] mat Pointer to the input material. May not be NULL
+ * @param[in] type Specifies the texture stack to read from (e.g. diffuse,
+ * specular, height map ...).
+ * @param[in] index Index of the texture. The function fails if the
+ * requested index is not available for this texture type.
+ * #aiGetMaterialTextureCount() can be used to determine the number of
+ * textures in a particular texture stack.
+ * @param[out] path Receives the output path
+ * If the texture is embedded, receives a '*' followed by the id of
+ * the texture (for the textures stored in the corresponding scene) which
+ * can be converted to an int using a function like atoi.
+ * This parameter must be non-null.
+ * @param mapping The texture mapping mode to be used.
+ * Pass NULL if you're not interested in this information.
+ * @param[out] uvindex For UV-mapped textures: receives the index of the UV
+ * source channel. Unmodified otherwise.
+ * Pass NULL if you're not interested in this information.
+ * @param[out] blend Receives the blend factor for the texture
+ * Pass NULL if you're not interested in this information.
+ * @param[out] op Receives the texture blend operation to be perform between
+ * this texture and the previous texture.
+ * Pass NULL if you're not interested in this information.
+ * @param[out] mapmode Receives the mapping modes to be used for the texture.
+ * Pass NULL if you're not interested in this information. Otherwise,
+ * pass a pointer to an array of two aiTextureMapMode's (one for each
+ * axis, UV order).
+ * @param[out] flags Receives the the texture flags.
+ * @return AI_SUCCESS on success, otherwise something else. Have fun.*/
+// ---------------------------------------------------------------------------
+#ifdef __cplusplus
+ASSIMP_API aiReturn aiGetMaterialTexture(const C_STRUCT aiMaterial *mat,
+ aiTextureType type,
+ unsigned int index,
+ aiString *path,
+ aiTextureMapping *mapping = NULL,
+ unsigned int *uvindex = NULL,
+ ai_real *blend = NULL,
+ aiTextureOp *op = NULL,
+ aiTextureMapMode *mapmode = NULL,
+ unsigned int *flags = NULL);
+#else
+C_ENUM aiReturn aiGetMaterialTexture(const C_STRUCT aiMaterial *mat,
+ C_ENUM aiTextureType type,
+ unsigned int index,
+ C_STRUCT aiString *path,
+ C_ENUM aiTextureMapping *mapping /*= NULL*/,
+ unsigned int *uvindex /*= NULL*/,
+ ai_real *blend /*= NULL*/,
+ C_ENUM aiTextureOp *op /*= NULL*/,
+ C_ENUM aiTextureMapMode *mapmode /*= NULL*/,
+ unsigned int *flags /*= NULL*/);
+#endif // !#ifdef __cplusplus
+
+#ifdef __cplusplus
+}
+
+#include "material.inl"
+
+#endif //!__cplusplus
+
+#endif //!!AI_MATERIAL_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/material.inl b/src/mesh/assimp-master/include/assimp/material.inl
new file mode 100644
index 0000000..a10ba4d
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/material.inl
@@ -0,0 +1,355 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file material.inl
+ * @brief Defines the C++ getters for the material system
+ */
+
+#pragma once
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiPropertyTypeInfo ai_real_to_property_type_info(float) {
+ return aiPTI_Float;
+}
+
+AI_FORCE_INLINE aiPropertyTypeInfo ai_real_to_property_type_info(double) {
+ return aiPTI_Double;
+}
+// ---------------------------------------------------------------------------
+
+//! @cond never
+
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::GetTexture( aiTextureType type,
+ unsigned int index,
+ C_STRUCT aiString* path,
+ aiTextureMapping* mapping /*= NULL*/,
+ unsigned int* uvindex /*= NULL*/,
+ ai_real* blend /*= NULL*/,
+ aiTextureOp* op /*= NULL*/,
+ aiTextureMapMode* mapmode /*= NULL*/) const {
+ return ::aiGetMaterialTexture(this,type,index,path,mapping,uvindex,blend,op,mapmode);
+}
+
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE unsigned int aiMaterial::GetTextureCount(aiTextureType type) const {
+ return ::aiGetMaterialTextureCount(this,type);
+}
+
+// ---------------------------------------------------------------------------
+template <typename Type>
+AI_FORCE_INLINE aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+ unsigned int idx, Type* pOut,
+ unsigned int* pMax) const {
+ unsigned int iNum = pMax ? *pMax : 1;
+
+ const aiMaterialProperty* prop;
+ const aiReturn ret = ::aiGetMaterialProperty(this,pKey,type,idx,
+ (const aiMaterialProperty**)&prop);
+ if ( AI_SUCCESS == ret ) {
+
+ if (prop->mDataLength < sizeof(Type)*iNum) {
+ return AI_FAILURE;
+ }
+
+ if (prop->mType != aiPTI_Buffer) {
+ return AI_FAILURE;
+ }
+
+ iNum = static_cast<unsigned int>(std::min(static_cast<size_t>(iNum),prop->mDataLength / sizeof(Type)));
+ ::memcpy(pOut,prop->mData,iNum * sizeof(Type));
+ if (pMax) {
+ *pMax = iNum;
+ }
+ }
+ return ret;
+}
+
+// ---------------------------------------------------------------------------
+template <typename Type>
+AI_FORCE_INLINE aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+ unsigned int idx,Type& pOut) const {
+ const aiMaterialProperty* prop;
+ const aiReturn ret = ::aiGetMaterialProperty(this,pKey,type,idx,
+ (const aiMaterialProperty**)&prop);
+ if ( AI_SUCCESS == ret ) {
+
+ if (prop->mDataLength < sizeof(Type)) {
+ return AI_FAILURE;
+ }
+
+ if (prop->mType != aiPTI_Buffer) {
+ return AI_FAILURE;
+ }
+
+ ::memcpy( &pOut, prop->mData, sizeof( Type ) );
+ }
+ return ret;
+}
+
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+ unsigned int idx,ai_real* pOut,
+ unsigned int* pMax) const {
+ return ::aiGetMaterialFloatArray(this,pKey,type,idx,pOut,pMax);
+}
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+ unsigned int idx,int* pOut,
+ unsigned int* pMax) const {
+ return ::aiGetMaterialIntegerArray(this,pKey,type,idx,pOut,pMax);
+}
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+ unsigned int idx,ai_real& pOut) const {
+ return aiGetMaterialFloat(this,pKey,type,idx,&pOut);
+}
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+ unsigned int idx,int& pOut) const {
+ return aiGetMaterialInteger(this,pKey,type,idx,&pOut);
+}
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+ unsigned int idx,aiColor4D& pOut) const {
+ return aiGetMaterialColor(this,pKey,type,idx,&pOut);
+}
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+ unsigned int idx,aiColor3D& pOut) const {
+ aiColor4D c;
+ const aiReturn ret = aiGetMaterialColor(this,pKey,type,idx,&c);
+ pOut = aiColor3D(c.r,c.g,c.b);
+ return ret;
+}
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+ unsigned int idx,aiString& pOut) const {
+ return aiGetMaterialString(this,pKey,type,idx,&pOut);
+}
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::Get(const char* pKey,unsigned int type,
+ unsigned int idx,aiUVTransform& pOut) const {
+ return aiGetMaterialUVTransform(this,pKey,type,idx,&pOut);
+}
+
+// ---------------------------------------------------------------------------
+template<class TYPE>
+aiReturn aiMaterial::AddProperty (const TYPE* pInput,
+ const unsigned int pNumValues, const char* pKey, unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput, pNumValues * sizeof(TYPE),
+ pKey,type,index,aiPTI_Buffer);
+}
+
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty(const float* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(float),
+ pKey,type,index,aiPTI_Float);
+}
+
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty(const double* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(double),
+ pKey,type,index,aiPTI_Double);
+}
+
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty(const aiUVTransform* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(aiUVTransform),
+ pKey,type,index,ai_real_to_property_type_info(pInput->mRotation));
+}
+
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty(const aiColor4D* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(aiColor4D),
+ pKey,type,index,ai_real_to_property_type_info(pInput->a));
+}
+
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty(const aiColor3D* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(aiColor3D),
+ pKey,type,index,ai_real_to_property_type_info(pInput->b));
+}
+
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty(const aiVector3D* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(aiVector3D),
+ pKey,type,index,ai_real_to_property_type_info(pInput->x));
+}
+
+// ---------------------------------------------------------------------------
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty(const int* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(int),
+ pKey,type,index,aiPTI_Integer);
+}
+
+
+// ---------------------------------------------------------------------------
+// The template specializations below are for backwards compatibility.
+// The recommended way to add material properties is using the non-template
+// overloads.
+// ---------------------------------------------------------------------------
+
+// ---------------------------------------------------------------------------
+template<>
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty<float>(const float* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(float),
+ pKey,type,index,aiPTI_Float);
+}
+
+// ---------------------------------------------------------------------------
+template<>
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty<double>(const double* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(double),
+ pKey,type,index,aiPTI_Double);
+}
+
+// ---------------------------------------------------------------------------
+template<>
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty<aiUVTransform>(const aiUVTransform* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(aiUVTransform),
+ pKey,type,index,aiPTI_Float);
+}
+
+// ---------------------------------------------------------------------------
+template<>
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty<aiColor4D>(const aiColor4D* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(aiColor4D),
+ pKey,type,index,aiPTI_Float);
+}
+
+// ---------------------------------------------------------------------------
+template<>
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty<aiColor3D>(const aiColor3D* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(aiColor3D),
+ pKey,type,index,aiPTI_Float);
+}
+
+// ---------------------------------------------------------------------------
+template<>
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty<aiVector3D>(const aiVector3D* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(aiVector3D),
+ pKey,type,index,aiPTI_Float);
+}
+
+// ---------------------------------------------------------------------------
+template<>
+AI_FORCE_INLINE aiReturn aiMaterial::AddProperty<int>(const int* pInput,
+ const unsigned int pNumValues,
+ const char* pKey,
+ unsigned int type,
+ unsigned int index) {
+ return AddBinaryProperty((const void*)pInput,
+ pNumValues * sizeof(int),
+ pKey,type,index,aiPTI_Integer);
+}
+
+//! @endcond
diff --git a/src/mesh/assimp-master/include/assimp/matrix3x3.h b/src/mesh/assimp-master/include/assimp/matrix3x3.h
new file mode 100644
index 0000000..74382e2
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/matrix3x3.h
@@ -0,0 +1,178 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file matrix3x3.h
+ * @brief Definition of a 3x3 matrix, including operators when compiling in C++
+ */
+#pragma once
+#ifndef AI_MATRIX3X3_H_INC
+#define AI_MATRIX3X3_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/defs.h>
+
+#ifdef __cplusplus
+
+template <typename T> class aiMatrix4x4t;
+template <typename T> class aiVector2t;
+template <typename T> class aiVector3t;
+
+// ---------------------------------------------------------------------------
+/** @brief Represents a row-major 3x3 matrix
+ *
+ * There's much confusion about matrix layouts (column vs. row order).
+ * This is *always* a row-major matrix. Not even with the
+ * #aiProcess_ConvertToLeftHanded flag, which absolutely does not affect
+ * matrix order - it just affects the handedness of the coordinate system
+ * defined thereby.
+ */
+template <typename TReal>
+class aiMatrix3x3t {
+public:
+ aiMatrix3x3t() AI_NO_EXCEPT :
+ a1(static_cast<TReal>(1.0f)), a2(), a3(),
+ b1(), b2(static_cast<TReal>(1.0f)), b3(),
+ c1(), c2(), c3(static_cast<TReal>(1.0f)) {}
+
+ aiMatrix3x3t ( TReal _a1, TReal _a2, TReal _a3,
+ TReal _b1, TReal _b2, TReal _b3,
+ TReal _c1, TReal _c2, TReal _c3) :
+ a1(_a1), a2(_a2), a3(_a3),
+ b1(_b1), b2(_b2), b3(_b3),
+ c1(_c1), c2(_c2), c3(_c3)
+ {}
+
+ // matrix multiplication.
+ aiMatrix3x3t& operator *= (const aiMatrix3x3t& m);
+ aiMatrix3x3t operator * (const aiMatrix3x3t& m) const;
+
+ // array access operators
+ TReal* operator[] (unsigned int p_iIndex);
+ const TReal* operator[] (unsigned int p_iIndex) const;
+
+ // comparison operators
+ bool operator== (const aiMatrix3x3t<TReal>& m) const;
+ bool operator!= (const aiMatrix3x3t<TReal>& m) const;
+
+ bool Equal(const aiMatrix3x3t<TReal> &m, TReal epsilon = ai_epsilon) const;
+
+ template <typename TOther>
+ operator aiMatrix3x3t<TOther> () const;
+
+ // -------------------------------------------------------------------
+ /** @brief Construction from a 4x4 matrix. The remaining parts
+ * of the matrix are ignored.
+ */
+ explicit aiMatrix3x3t( const aiMatrix4x4t<TReal>& pMatrix);
+
+ // -------------------------------------------------------------------
+ /** @brief Transpose the matrix
+ */
+ aiMatrix3x3t& Transpose();
+
+ // -------------------------------------------------------------------
+ /** @brief Invert the matrix.
+ * If the matrix is not invertible all elements are set to qnan.
+ * Beware, use (f != f) to check whether a TReal f is qnan.
+ */
+ aiMatrix3x3t& Inverse();
+ TReal Determinant() const;
+
+ // -------------------------------------------------------------------
+ /** @brief Returns a rotation matrix for a rotation around z
+ * @param a Rotation angle, in radians
+ * @param out Receives the output matrix
+ * @return Reference to the output matrix
+ */
+ static aiMatrix3x3t& RotationZ(TReal a, aiMatrix3x3t& out);
+
+ // -------------------------------------------------------------------
+ /** @brief Returns a rotation matrix for a rotation around
+ * an arbitrary axis.
+ *
+ * @param a Rotation angle, in radians
+ * @param axis Axis to rotate around
+ * @param out To be filled
+ */
+ static aiMatrix3x3t& Rotation( TReal a, const aiVector3t<TReal>& axis, aiMatrix3x3t& out);
+
+ // -------------------------------------------------------------------
+ /** @brief Returns a translation matrix
+ * @param v Translation vector
+ * @param out Receives the output matrix
+ * @return Reference to the output matrix
+ */
+ static aiMatrix3x3t& Translation( const aiVector2t<TReal>& v, aiMatrix3x3t& out);
+
+ // -------------------------------------------------------------------
+ /** @brief A function for creating a rotation matrix that rotates a
+ * vector called "from" into another vector called "to".
+ * Input : from[3], to[3] which both must be *normalized* non-zero vectors
+ * Output: mtx[3][3] -- a 3x3 matrix in column-major form
+ * Authors: Tomas Möller, John Hughes
+ * "Efficiently Building a Matrix to Rotate One Vector to Another"
+ * Journal of Graphics Tools, 4(4):1-4, 1999
+ */
+ static aiMatrix3x3t& FromToMatrix(const aiVector3t<TReal>& from,
+ const aiVector3t<TReal>& to, aiMatrix3x3t& out);
+
+public:
+ TReal a1, a2, a3;
+ TReal b1, b2, b3;
+ TReal c1, c2, c3;
+};
+
+typedef aiMatrix3x3t<ai_real> aiMatrix3x3;
+
+#else
+
+struct aiMatrix3x3 {
+ ai_real a1, a2, a3;
+ ai_real b1, b2, b3;
+ ai_real c1, c2, c3;
+};
+
+#endif // __cplusplus
+
+#endif // AI_MATRIX3X3_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/matrix3x3.inl b/src/mesh/assimp-master/include/assimp/matrix3x3.inl
new file mode 100644
index 0000000..99d9197
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/matrix3x3.inl
@@ -0,0 +1,359 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file matrix3x3.inl
+ * @brief Inline implementation of the 3x3 matrix operators
+ */
+#pragma once
+#ifndef AI_MATRIX3X3_INL_INC
+#define AI_MATRIX3X3_INL_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#ifdef __cplusplus
+#include <assimp/matrix3x3.h>
+#include <assimp/matrix4x4.h>
+
+#include <algorithm>
+#include <cmath>
+#include <limits>
+
+// ------------------------------------------------------------------------------------------------
+// Construction from a 4x4 matrix. The remaining parts of the matrix are ignored.
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix3x3t<TReal>::aiMatrix3x3t( const aiMatrix4x4t<TReal>& pMatrix) {
+ a1 = pMatrix.a1; a2 = pMatrix.a2; a3 = pMatrix.a3;
+ b1 = pMatrix.b1; b2 = pMatrix.b2; b3 = pMatrix.b3;
+ c1 = pMatrix.c1; c2 = pMatrix.c2; c3 = pMatrix.c3;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::operator *= (const aiMatrix3x3t<TReal>& m) {
+ *this = aiMatrix3x3t<TReal>(m.a1 * a1 + m.b1 * a2 + m.c1 * a3,
+ m.a2 * a1 + m.b2 * a2 + m.c2 * a3,
+ m.a3 * a1 + m.b3 * a2 + m.c3 * a3,
+ m.a1 * b1 + m.b1 * b2 + m.c1 * b3,
+ m.a2 * b1 + m.b2 * b2 + m.c2 * b3,
+ m.a3 * b1 + m.b3 * b2 + m.c3 * b3,
+ m.a1 * c1 + m.b1 * c2 + m.c1 * c3,
+ m.a2 * c1 + m.b2 * c2 + m.c2 * c3,
+ m.a3 * c1 + m.b3 * c2 + m.c3 * c3);
+ return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+template <typename TOther>
+aiMatrix3x3t<TReal>::operator aiMatrix3x3t<TOther> () const {
+ return aiMatrix3x3t<TOther>(static_cast<TOther>(a1),static_cast<TOther>(a2),static_cast<TOther>(a3),
+ static_cast<TOther>(b1),static_cast<TOther>(b2),static_cast<TOther>(b3),
+ static_cast<TOther>(c1),static_cast<TOther>(c2),static_cast<TOther>(c3));
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix3x3t<TReal> aiMatrix3x3t<TReal>::operator* (const aiMatrix3x3t<TReal>& m) const {
+ aiMatrix3x3t<TReal> temp( *this);
+ temp *= m;
+ return temp;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+TReal* aiMatrix3x3t<TReal>::operator[] (unsigned int p_iIndex) {
+ switch ( p_iIndex ) {
+ case 0:
+ return &a1;
+ case 1:
+ return &b1;
+ case 2:
+ return &c1;
+ default:
+ break;
+ }
+ return &a1;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+const TReal* aiMatrix3x3t<TReal>::operator[] (unsigned int p_iIndex) const {
+ switch ( p_iIndex ) {
+ case 0:
+ return &a1;
+ case 1:
+ return &b1;
+ case 2:
+ return &c1;
+ default:
+ break;
+ }
+ return &a1;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+bool aiMatrix3x3t<TReal>::operator== (const aiMatrix3x3t<TReal>& m) const {
+ return a1 == m.a1 && a2 == m.a2 && a3 == m.a3 &&
+ b1 == m.b1 && b2 == m.b2 && b3 == m.b3 &&
+ c1 == m.c1 && c2 == m.c2 && c3 == m.c3;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+bool aiMatrix3x3t<TReal>::operator!= (const aiMatrix3x3t<TReal>& m) const {
+ return !(*this == m);
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+AI_FORCE_INLINE
+bool aiMatrix3x3t<TReal>::Equal(const aiMatrix3x3t<TReal>& m, TReal epsilon) const {
+ return
+ std::abs(a1 - m.a1) <= epsilon &&
+ std::abs(a2 - m.a2) <= epsilon &&
+ std::abs(a3 - m.a3) <= epsilon &&
+ std::abs(b1 - m.b1) <= epsilon &&
+ std::abs(b2 - m.b2) <= epsilon &&
+ std::abs(b3 - m.b3) <= epsilon &&
+ std::abs(c1 - m.c1) <= epsilon &&
+ std::abs(c2 - m.c2) <= epsilon &&
+ std::abs(c3 - m.c3) <= epsilon;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::Transpose() {
+ // (TReal&) don't remove, GCC complains cause of packed fields
+ std::swap( (TReal&)a2, (TReal&)b1);
+ std::swap( (TReal&)a3, (TReal&)c1);
+ std::swap( (TReal&)b3, (TReal&)c2);
+ return *this;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+TReal aiMatrix3x3t<TReal>::Determinant() const {
+ return a1*b2*c3 - a1*b3*c2 + a2*b3*c1 - a2*b1*c3 + a3*b1*c2 - a3*b2*c1;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::Inverse() {
+ // Compute the reciprocal determinant
+ TReal det = Determinant();
+ if(det == static_cast<TReal>(0.0))
+ {
+ // Matrix not invertible. Setting all elements to nan is not really
+ // correct in a mathematical sense; but at least qnans are easy to
+ // spot. XXX we might throw an exception instead, which would
+ // be even much better to spot :/.
+ const TReal nan = std::numeric_limits<TReal>::quiet_NaN();
+ *this = aiMatrix3x3t<TReal>( nan,nan,nan,nan,nan,nan,nan,nan,nan);
+
+ return *this;
+ }
+
+ TReal invdet = static_cast<TReal>(1.0) / det;
+
+ aiMatrix3x3t<TReal> res;
+ res.a1 = invdet * (b2 * c3 - b3 * c2);
+ res.a2 = -invdet * (a2 * c3 - a3 * c2);
+ res.a3 = invdet * (a2 * b3 - a3 * b2);
+ res.b1 = -invdet * (b1 * c3 - b3 * c1);
+ res.b2 = invdet * (a1 * c3 - a3 * c1);
+ res.b3 = -invdet * (a1 * b3 - a3 * b1);
+ res.c1 = invdet * (b1 * c2 - b2 * c1);
+ res.c2 = -invdet * (a1 * c2 - a2 * c1);
+ res.c3 = invdet * (a1 * b2 - a2 * b1);
+ *this = res;
+
+ return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::RotationZ(TReal a, aiMatrix3x3t<TReal>& out) {
+ out.a1 = out.b2 = std::cos(a);
+ out.b1 = std::sin(a);
+ out.a2 = - out.b1;
+
+ out.a3 = out.b3 = out.c1 = out.c2 = 0.f;
+ out.c3 = 1.f;
+
+ return out;
+}
+
+// ------------------------------------------------------------------------------------------------
+// Returns a rotation matrix for a rotation around an arbitrary axis.
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::Rotation( TReal a, const aiVector3t<TReal>& axis, aiMatrix3x3t<TReal>& out) {
+ TReal c = std::cos( a), s = std::sin( a), t = 1 - c;
+ TReal x = axis.x, y = axis.y, z = axis.z;
+
+ // Many thanks to MathWorld and Wikipedia
+ out.a1 = t*x*x + c; out.a2 = t*x*y - s*z; out.a3 = t*x*z + s*y;
+ out.b1 = t*x*y + s*z; out.b2 = t*y*y + c; out.b3 = t*y*z - s*x;
+ out.c1 = t*x*z - s*y; out.c2 = t*y*z + s*x; out.c3 = t*z*z + c;
+
+ return out;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::Translation( const aiVector2t<TReal>& v, aiMatrix3x3t<TReal>& out) {
+ out = aiMatrix3x3t<TReal>();
+ out.a3 = v.x;
+ out.b3 = v.y;
+ return out;
+}
+
+// ----------------------------------------------------------------------------------------
+/** A function for creating a rotation matrix that rotates a vector called
+ * "from" into another vector called "to".
+ * Input : from[3], to[3] which both must be *normalized* non-zero vectors
+ * Output: mtx[3][3] -- a 3x3 matrix in colum-major form
+ * Authors: Tomas Möller, John Hughes
+ * "Efficiently Building a Matrix to Rotate One Vector to Another"
+ * Journal of Graphics Tools, 4(4):1-4, 1999
+ */
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiMatrix3x3t<TReal>& aiMatrix3x3t<TReal>::FromToMatrix(const aiVector3t<TReal>& from,
+ const aiVector3t<TReal>& to, aiMatrix3x3t<TReal>& mtx) {
+ const TReal e = from * to;
+ const TReal f = (e < 0)? -e:e;
+
+ if (f > static_cast<TReal>(1.0) - static_cast<TReal>(0.00001)) /* "from" and "to"-vector almost parallel */
+ {
+ aiVector3D u,v; /* temporary storage vectors */
+ aiVector3D x; /* vector most nearly orthogonal to "from" */
+
+ x.x = (from.x > 0.0)? from.x : -from.x;
+ x.y = (from.y > 0.0)? from.y : -from.y;
+ x.z = (from.z > 0.0)? from.z : -from.z;
+
+ if (x.x < x.y)
+ {
+ if (x.x < x.z)
+ {
+ x.x = static_cast<TReal>(1.0);
+ x.y = x.z = static_cast<TReal>(0.0);
+ }
+ else
+ {
+ x.z = static_cast<TReal>(1.0);
+ x.x = x.y = static_cast<TReal>(0.0);
+ }
+ }
+ else
+ {
+ if (x.y < x.z)
+ {
+ x.y = static_cast<TReal>(1.0);
+ x.x = x.z = static_cast<TReal>(0.0);
+ }
+ else
+ {
+ x.z = static_cast<TReal>(1.0);
+ x.x = x.y = static_cast<TReal>(0.0);
+ }
+ }
+
+ u.x = x.x - from.x; u.y = x.y - from.y; u.z = x.z - from.z;
+ v.x = x.x - to.x; v.y = x.y - to.y; v.z = x.z - to.z;
+
+ const TReal c1_ = static_cast<TReal>(2.0) / (u * u);
+ const TReal c2_ = static_cast<TReal>(2.0) / (v * v);
+ const TReal c3_ = c1_ * c2_ * (u * v);
+
+ for (unsigned int i = 0; i < 3; i++)
+ {
+ for (unsigned int j = 0; j < 3; j++)
+ {
+ mtx[i][j] = - c1_ * u[i] * u[j] - c2_ * v[i] * v[j]
+ + c3_ * v[i] * u[j];
+ }
+ mtx[i][i] += static_cast<TReal>(1.0);
+ }
+ }
+ else /* the most common case, unless "from"="to", or "from"=-"to" */
+ {
+ const aiVector3D v = from ^ to;
+ /* ... use this hand optimized version (9 mults less) */
+ const TReal h = static_cast<TReal>(1.0)/(static_cast<TReal>(1.0) + e); /* optimization by Gottfried Chen */
+ const TReal hvx = h * v.x;
+ const TReal hvz = h * v.z;
+ const TReal hvxy = hvx * v.y;
+ const TReal hvxz = hvx * v.z;
+ const TReal hvyz = hvz * v.y;
+ mtx[0][0] = e + hvx * v.x;
+ mtx[0][1] = hvxy - v.z;
+ mtx[0][2] = hvxz + v.y;
+
+ mtx[1][0] = hvxy + v.z;
+ mtx[1][1] = e + h * v.y * v.y;
+ mtx[1][2] = hvyz - v.x;
+
+ mtx[2][0] = hvxz - v.y;
+ mtx[2][1] = hvyz + v.x;
+ mtx[2][2] = e + hvz * v.z;
+ }
+ return mtx;
+}
+
+#endif // __cplusplus
+#endif // AI_MATRIX3X3_INL_INC
diff --git a/src/mesh/assimp-master/include/assimp/matrix4x4.h b/src/mesh/assimp-master/include/assimp/matrix4x4.h
new file mode 100644
index 0000000..67e0e35
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/matrix4x4.h
@@ -0,0 +1,276 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file matrix4x4.h
+ * @brief 4x4 matrix structure, including operators when compiling in C++
+ */
+#pragma once
+#ifndef AI_MATRIX4X4_H_INC
+#define AI_MATRIX4X4_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/vector3.h>
+#include <assimp/defs.h>
+
+#ifdef __cplusplus
+
+template<typename TReal> class aiMatrix3x3t;
+template<typename TReal> class aiQuaterniont;
+
+// ---------------------------------------------------------------------------
+/** @brief Represents a row-major 4x4 matrix, use this for homogeneous
+ * coordinates.
+ *
+ * There's much confusion about matrix layouts (column vs. row order).
+ * This is *always* a row-major matrix. Not even with the
+ * #aiProcess_ConvertToLeftHanded flag, which absolutely does not affect
+ * matrix order - it just affects the handedness of the coordinate system
+ * defined thereby.
+ */
+template<typename TReal>
+class aiMatrix4x4t {
+public:
+
+ /** set to identity */
+ aiMatrix4x4t() AI_NO_EXCEPT;
+
+ /** construction from single values */
+ aiMatrix4x4t ( TReal _a1, TReal _a2, TReal _a3, TReal _a4,
+ TReal _b1, TReal _b2, TReal _b3, TReal _b4,
+ TReal _c1, TReal _c2, TReal _c3, TReal _c4,
+ TReal _d1, TReal _d2, TReal _d3, TReal _d4);
+
+
+ /** construction from 3x3 matrix, remaining elements are set to identity */
+ explicit aiMatrix4x4t( const aiMatrix3x3t<TReal>& m);
+
+ /** construction from position, rotation and scaling components
+ * @param scaling The scaling for the x,y,z axes
+ * @param rotation The rotation as a hamilton quaternion
+ * @param position The position for the x,y,z axes
+ */
+ aiMatrix4x4t(const aiVector3t<TReal>& scaling, const aiQuaterniont<TReal>& rotation,
+ const aiVector3t<TReal>& position);
+
+ // array access operators
+ /** @fn TReal* operator[] (unsigned int p_iIndex)
+ * @param [in] p_iIndex - index of the row.
+ * @return pointer to pointed row.
+ */
+ TReal* operator[] (unsigned int p_iIndex);
+
+ /** @fn const TReal* operator[] (unsigned int p_iIndex) const
+ * @overload TReal* operator[] (unsigned int p_iIndex)
+ */
+ const TReal* operator[] (unsigned int p_iIndex) const;
+
+ // comparison operators
+ bool operator== (const aiMatrix4x4t& m) const;
+ bool operator!= (const aiMatrix4x4t& m) const;
+
+ bool Equal(const aiMatrix4x4t &m, TReal epsilon = ai_epsilon) const;
+
+ // matrix multiplication.
+ aiMatrix4x4t& operator *= (const aiMatrix4x4t& m);
+ aiMatrix4x4t operator * (const aiMatrix4x4t& m) const;
+ aiMatrix4x4t operator * (const TReal& aFloat) const;
+ aiMatrix4x4t operator + (const aiMatrix4x4t& aMatrix) const;
+
+ template <typename TOther>
+ operator aiMatrix4x4t<TOther> () const;
+
+ // -------------------------------------------------------------------
+ /** @brief Transpose the matrix */
+ aiMatrix4x4t& Transpose();
+
+ // -------------------------------------------------------------------
+ /** @brief Invert the matrix.
+ * If the matrix is not invertible all elements are set to qnan.
+ * Beware, use (f != f) to check whether a TReal f is qnan.
+ */
+ aiMatrix4x4t& Inverse();
+ TReal Determinant() const;
+
+
+ // -------------------------------------------------------------------
+ /** @brief Returns true of the matrix is the identity matrix.
+ * The check is performed against a not so small epsilon.
+ */
+ inline bool IsIdentity() const;
+
+ // -------------------------------------------------------------------
+ /** @brief Decompose a trafo matrix into its original components
+ * @param scaling Receives the output scaling for the x,y,z axes
+ * @param rotation Receives the output rotation as a hamilton
+ * quaternion
+ * @param position Receives the output position for the x,y,z axes
+ */
+ void Decompose (aiVector3t<TReal>& scaling, aiQuaterniont<TReal>& rotation,
+ aiVector3t<TReal>& position) const;
+
+ // -------------------------------------------------------------------
+ /** @fn void Decompose(aiVector3t<TReal>& pScaling, aiVector3t<TReal>& pRotation, aiVector3t<TReal>& pPosition) const
+ * @brief Decompose a trafo matrix into its original components.
+ * Thx to good FAQ at http://www.gamedev.ru/code/articles/faq_matrix_quat
+ * @param [out] pScaling - Receives the output scaling for the x,y,z axes.
+ * @param [out] pRotation - Receives the output rotation as a Euler angles.
+ * @param [out] pPosition - Receives the output position for the x,y,z axes.
+ */
+ void Decompose(aiVector3t<TReal>& pScaling, aiVector3t<TReal>& pRotation, aiVector3t<TReal>& pPosition) const;
+
+ // -------------------------------------------------------------------
+ /** @fn void Decompose(aiVector3t<TReal>& pScaling, aiVector3t<TReal>& pRotationAxis, TReal& pRotationAngle, aiVector3t<TReal>& pPosition) const
+ * @brief Decompose a trafo matrix into its original components
+ * Thx to good FAQ at http://www.gamedev.ru/code/articles/faq_matrix_quat
+ * @param [out] pScaling - Receives the output scaling for the x,y,z axes.
+ * @param [out] pRotationAxis - Receives the output rotation axis.
+ * @param [out] pRotationAngle - Receives the output rotation angle for @ref pRotationAxis.
+ * @param [out] pPosition - Receives the output position for the x,y,z axes.
+ */
+ void Decompose(aiVector3t<TReal>& pScaling, aiVector3t<TReal>& pRotationAxis, TReal& pRotationAngle, aiVector3t<TReal>& pPosition) const;
+
+ // -------------------------------------------------------------------
+ /** @brief Decompose a trafo matrix with no scaling into its
+ * original components
+ * @param rotation Receives the output rotation as a hamilton
+ * quaternion
+ * @param position Receives the output position for the x,y,z axes
+ */
+ void DecomposeNoScaling (aiQuaterniont<TReal>& rotation,
+ aiVector3t<TReal>& position) const;
+
+ // -------------------------------------------------------------------
+ /** @brief Creates a trafo matrix from a set of euler angles
+ * @param x Rotation angle for the x-axis, in radians
+ * @param y Rotation angle for the y-axis, in radians
+ * @param z Rotation angle for the z-axis, in radians
+ */
+ aiMatrix4x4t& FromEulerAnglesXYZ(TReal x, TReal y, TReal z);
+ aiMatrix4x4t& FromEulerAnglesXYZ(const aiVector3t<TReal>& blubb);
+
+ // -------------------------------------------------------------------
+ /** @brief Returns a rotation matrix for a rotation around the x axis
+ * @param a Rotation angle, in radians
+ * @param out Receives the output matrix
+ * @return Reference to the output matrix
+ */
+ static aiMatrix4x4t& RotationX(TReal a, aiMatrix4x4t& out);
+
+ // -------------------------------------------------------------------
+ /** @brief Returns a rotation matrix for a rotation around the y axis
+ * @param a Rotation angle, in radians
+ * @param out Receives the output matrix
+ * @return Reference to the output matrix
+ */
+ static aiMatrix4x4t& RotationY(TReal a, aiMatrix4x4t& out);
+
+ // -------------------------------------------------------------------
+ /** @brief Returns a rotation matrix for a rotation around the z axis
+ * @param a Rotation angle, in radians
+ * @param out Receives the output matrix
+ * @return Reference to the output matrix
+ */
+ static aiMatrix4x4t& RotationZ(TReal a, aiMatrix4x4t& out);
+
+ // -------------------------------------------------------------------
+ /** Returns a rotation matrix for a rotation around an arbitrary axis.
+ * @param a Rotation angle, in radians
+ * @param axis Rotation axis, should be a normalized vector.
+ * @param out Receives the output matrix
+ * @return Reference to the output matrix
+ */
+ static aiMatrix4x4t& Rotation(TReal a, const aiVector3t<TReal>& axis,
+ aiMatrix4x4t& out);
+
+ // -------------------------------------------------------------------
+ /** @brief Returns a translation matrix
+ * @param v Translation vector
+ * @param out Receives the output matrix
+ * @return Reference to the output matrix
+ */
+ static aiMatrix4x4t& Translation( const aiVector3t<TReal>& v,
+ aiMatrix4x4t& out);
+
+ // -------------------------------------------------------------------
+ /** @brief Returns a scaling matrix
+ * @param v Scaling vector
+ * @param out Receives the output matrix
+ * @return Reference to the output matrix
+ */
+ static aiMatrix4x4t& Scaling( const aiVector3t<TReal>& v, aiMatrix4x4t& out);
+
+ // -------------------------------------------------------------------
+ /** @brief A function for creating a rotation matrix that rotates a
+ * vector called "from" into another vector called "to".
+ * Input : from[3], to[3] which both must be *normalized* non-zero vectors
+ * Output: mtx[3][3] -- a 3x3 matrix in column-major form
+ * Authors: Tomas Mueller, John Hughes
+ * "Efficiently Building a Matrix to Rotate One Vector to Another"
+ * Journal of Graphics Tools, 4(4):1-4, 1999
+ */
+ static aiMatrix4x4t& FromToMatrix(const aiVector3t<TReal>& from,
+ const aiVector3t<TReal>& to, aiMatrix4x4t& out);
+
+ TReal a1, a2, a3, a4;
+ TReal b1, b2, b3, b4;
+ TReal c1, c2, c3, c4;
+ TReal d1, d2, d3, d4;
+};
+
+typedef aiMatrix4x4t<ai_real> aiMatrix4x4;
+
+#else
+
+struct aiMatrix4x4 {
+ ai_real a1, a2, a3, a4;
+ ai_real b1, b2, b3, b4;
+ ai_real c1, c2, c3, c4;
+ ai_real d1, d2, d3, d4;
+};
+
+
+#endif // __cplusplus
+
+#endif // AI_MATRIX4X4_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/matrix4x4.inl b/src/mesh/assimp-master/include/assimp/matrix4x4.inl
new file mode 100644
index 0000000..54d176d
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/matrix4x4.inl
@@ -0,0 +1,677 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file matrix4x4.inl
+ * @brief Inline implementation of the 4x4 matrix operators
+ */
+#pragma once
+#ifndef AI_MATRIX4X4_INL_INC
+#define AI_MATRIX4X4_INL_INC
+
+#ifdef __cplusplus
+
+#include "matrix4x4.h"
+#include "matrix3x3.h"
+#include "quaternion.h"
+#include "MathFunctions.h"
+
+#include <algorithm>
+#include <limits>
+#include <cmath>
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+aiMatrix4x4t<TReal>::aiMatrix4x4t() AI_NO_EXCEPT :
+ a1(1.0f), a2(), a3(), a4(),
+ b1(), b2(1.0f), b3(), b4(),
+ c1(), c2(), c3(1.0f), c4(),
+ d1(), d2(), d3(), d4(1.0f) {
+ // empty
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+aiMatrix4x4t<TReal>::aiMatrix4x4t (TReal _a1, TReal _a2, TReal _a3, TReal _a4,
+ TReal _b1, TReal _b2, TReal _b3, TReal _b4,
+ TReal _c1, TReal _c2, TReal _c3, TReal _c4,
+ TReal _d1, TReal _d2, TReal _d3, TReal _d4) :
+ a1(_a1), a2(_a2), a3(_a3), a4(_a4),
+ b1(_b1), b2(_b2), b3(_b3), b4(_b4),
+ c1(_c1), c2(_c2), c3(_c3), c4(_c4),
+ d1(_d1), d2(_d2), d3(_d3), d4(_d4) {
+ // empty
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+template <typename TOther>
+aiMatrix4x4t<TReal>::operator aiMatrix4x4t<TOther> () const {
+ return aiMatrix4x4t<TOther>(static_cast<TOther>(a1),static_cast<TOther>(a2),static_cast<TOther>(a3),static_cast<TOther>(a4),
+ static_cast<TOther>(b1),static_cast<TOther>(b2),static_cast<TOther>(b3),static_cast<TOther>(b4),
+ static_cast<TOther>(c1),static_cast<TOther>(c2),static_cast<TOther>(c3),static_cast<TOther>(c4),
+ static_cast<TOther>(d1),static_cast<TOther>(d2),static_cast<TOther>(d3),static_cast<TOther>(d4));
+}
+
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal>::aiMatrix4x4t (const aiMatrix3x3t<TReal>& m) {
+ a1 = m.a1; a2 = m.a2; a3 = m.a3; a4 = static_cast<TReal>(0.0);
+ b1 = m.b1; b2 = m.b2; b3 = m.b3; b4 = static_cast<TReal>(0.0);
+ c1 = m.c1; c2 = m.c2; c3 = m.c3; c4 = static_cast<TReal>(0.0);
+ d1 = static_cast<TReal>(0.0); d2 = static_cast<TReal>(0.0); d3 = static_cast<TReal>(0.0); d4 = static_cast<TReal>(1.0);
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal>::aiMatrix4x4t (const aiVector3t<TReal>& scaling, const aiQuaterniont<TReal>& rotation, const aiVector3t<TReal>& position) {
+ // build a 3x3 rotation matrix
+ aiMatrix3x3t<TReal> m = rotation.GetMatrix();
+
+ a1 = m.a1 * scaling.x;
+ a2 = m.a2 * scaling.x;
+ a3 = m.a3 * scaling.x;
+ a4 = position.x;
+
+ b1 = m.b1 * scaling.y;
+ b2 = m.b2 * scaling.y;
+ b3 = m.b3 * scaling.y;
+ b4 = position.y;
+
+ c1 = m.c1 * scaling.z;
+ c2 = m.c2 * scaling.z;
+ c3 = m.c3 * scaling.z;
+ c4= position.z;
+
+ d1 = static_cast<TReal>(0.0);
+ d2 = static_cast<TReal>(0.0);
+ d3 = static_cast<TReal>(0.0);
+ d4 = static_cast<TReal>(1.0);
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::operator *= (const aiMatrix4x4t<TReal>& m) {
+ *this = aiMatrix4x4t<TReal>(
+ m.a1 * a1 + m.b1 * a2 + m.c1 * a3 + m.d1 * a4,
+ m.a2 * a1 + m.b2 * a2 + m.c2 * a3 + m.d2 * a4,
+ m.a3 * a1 + m.b3 * a2 + m.c3 * a3 + m.d3 * a4,
+ m.a4 * a1 + m.b4 * a2 + m.c4 * a3 + m.d4 * a4,
+ m.a1 * b1 + m.b1 * b2 + m.c1 * b3 + m.d1 * b4,
+ m.a2 * b1 + m.b2 * b2 + m.c2 * b3 + m.d2 * b4,
+ m.a3 * b1 + m.b3 * b2 + m.c3 * b3 + m.d3 * b4,
+ m.a4 * b1 + m.b4 * b2 + m.c4 * b3 + m.d4 * b4,
+ m.a1 * c1 + m.b1 * c2 + m.c1 * c3 + m.d1 * c4,
+ m.a2 * c1 + m.b2 * c2 + m.c2 * c3 + m.d2 * c4,
+ m.a3 * c1 + m.b3 * c2 + m.c3 * c3 + m.d3 * c4,
+ m.a4 * c1 + m.b4 * c2 + m.c4 * c3 + m.d4 * c4,
+ m.a1 * d1 + m.b1 * d2 + m.c1 * d3 + m.d1 * d4,
+ m.a2 * d1 + m.b2 * d2 + m.c2 * d3 + m.d2 * d4,
+ m.a3 * d1 + m.b3 * d2 + m.c3 * d3 + m.d3 * d4,
+ m.a4 * d1 + m.b4 * d2 + m.c4 * d3 + m.d4 * d4);
+ return *this;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiMatrix4x4t<TReal> aiMatrix4x4t<TReal>::operator* (const TReal& aFloat) const {
+ aiMatrix4x4t<TReal> temp(
+ a1 * aFloat,
+ a2 * aFloat,
+ a3 * aFloat,
+ a4 * aFloat,
+ b1 * aFloat,
+ b2 * aFloat,
+ b3 * aFloat,
+ b4 * aFloat,
+ c1 * aFloat,
+ c2 * aFloat,
+ c3 * aFloat,
+ c4 * aFloat,
+ d1 * aFloat,
+ d2 * aFloat,
+ d3 * aFloat,
+ d4 * aFloat);
+ return temp;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal> aiMatrix4x4t<TReal>::operator+ (const aiMatrix4x4t<TReal>& m) const {
+ aiMatrix4x4t<TReal> temp(
+ m.a1 + a1,
+ m.a2 + a2,
+ m.a3 + a3,
+ m.a4 + a4,
+ m.b1 + b1,
+ m.b2 + b2,
+ m.b3 + b3,
+ m.b4 + b4,
+ m.c1 + c1,
+ m.c2 + c2,
+ m.c3 + c3,
+ m.c4 + c4,
+ m.d1 + d1,
+ m.d2 + d2,
+ m.d3 + d3,
+ m.d4 + d4);
+ return temp;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal> aiMatrix4x4t<TReal>::operator* (const aiMatrix4x4t<TReal>& m) const {
+ aiMatrix4x4t<TReal> temp( *this);
+ temp *= m;
+ return temp;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::Transpose() {
+ // (TReal&) don't remove, GCC complains cause of packed fields
+ std::swap( (TReal&)b1, (TReal&)a2);
+ std::swap( (TReal&)c1, (TReal&)a3);
+ std::swap( (TReal&)c2, (TReal&)b3);
+ std::swap( (TReal&)d1, (TReal&)a4);
+ std::swap( (TReal&)d2, (TReal&)b4);
+ std::swap( (TReal&)d3, (TReal&)c4);
+ return *this;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+TReal aiMatrix4x4t<TReal>::Determinant() const {
+ return a1*b2*c3*d4 - a1*b2*c4*d3 + a1*b3*c4*d2 - a1*b3*c2*d4
+ + a1*b4*c2*d3 - a1*b4*c3*d2 - a2*b3*c4*d1 + a2*b3*c1*d4
+ - a2*b4*c1*d3 + a2*b4*c3*d1 - a2*b1*c3*d4 + a2*b1*c4*d3
+ + a3*b4*c1*d2 - a3*b4*c2*d1 + a3*b1*c2*d4 - a3*b1*c4*d2
+ + a3*b2*c4*d1 - a3*b2*c1*d4 - a4*b1*c2*d3 + a4*b1*c3*d2
+ - a4*b2*c3*d1 + a4*b2*c1*d3 - a4*b3*c1*d2 + a4*b3*c2*d1;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::Inverse() {
+ // Compute the reciprocal determinant
+ const TReal det = Determinant();
+ if(det == static_cast<TReal>(0.0))
+ {
+ // Matrix not invertible. Setting all elements to nan is not really
+ // correct in a mathematical sense but it is easy to debug for the
+ // programmer.
+ const TReal nan = std::numeric_limits<TReal>::quiet_NaN();
+ *this = aiMatrix4x4t<TReal>(
+ nan,nan,nan,nan,
+ nan,nan,nan,nan,
+ nan,nan,nan,nan,
+ nan,nan,nan,nan);
+
+ return *this;
+ }
+
+ const TReal invdet = static_cast<TReal>(1.0) / det;
+
+ aiMatrix4x4t<TReal> res;
+ res.a1 = invdet * (b2 * (c3 * d4 - c4 * d3) + b3 * (c4 * d2 - c2 * d4) + b4 * (c2 * d3 - c3 * d2));
+ res.a2 = -invdet * (a2 * (c3 * d4 - c4 * d3) + a3 * (c4 * d2 - c2 * d4) + a4 * (c2 * d3 - c3 * d2));
+ res.a3 = invdet * (a2 * (b3 * d4 - b4 * d3) + a3 * (b4 * d2 - b2 * d4) + a4 * (b2 * d3 - b3 * d2));
+ res.a4 = -invdet * (a2 * (b3 * c4 - b4 * c3) + a3 * (b4 * c2 - b2 * c4) + a4 * (b2 * c3 - b3 * c2));
+ res.b1 = -invdet * (b1 * (c3 * d4 - c4 * d3) + b3 * (c4 * d1 - c1 * d4) + b4 * (c1 * d3 - c3 * d1));
+ res.b2 = invdet * (a1 * (c3 * d4 - c4 * d3) + a3 * (c4 * d1 - c1 * d4) + a4 * (c1 * d3 - c3 * d1));
+ res.b3 = -invdet * (a1 * (b3 * d4 - b4 * d3) + a3 * (b4 * d1 - b1 * d4) + a4 * (b1 * d3 - b3 * d1));
+ res.b4 = invdet * (a1 * (b3 * c4 - b4 * c3) + a3 * (b4 * c1 - b1 * c4) + a4 * (b1 * c3 - b3 * c1));
+ res.c1 = invdet * (b1 * (c2 * d4 - c4 * d2) + b2 * (c4 * d1 - c1 * d4) + b4 * (c1 * d2 - c2 * d1));
+ res.c2 = -invdet * (a1 * (c2 * d4 - c4 * d2) + a2 * (c4 * d1 - c1 * d4) + a4 * (c1 * d2 - c2 * d1));
+ res.c3 = invdet * (a1 * (b2 * d4 - b4 * d2) + a2 * (b4 * d1 - b1 * d4) + a4 * (b1 * d2 - b2 * d1));
+ res.c4 = -invdet * (a1 * (b2 * c4 - b4 * c2) + a2 * (b4 * c1 - b1 * c4) + a4 * (b1 * c2 - b2 * c1));
+ res.d1 = -invdet * (b1 * (c2 * d3 - c3 * d2) + b2 * (c3 * d1 - c1 * d3) + b3 * (c1 * d2 - c2 * d1));
+ res.d2 = invdet * (a1 * (c2 * d3 - c3 * d2) + a2 * (c3 * d1 - c1 * d3) + a3 * (c1 * d2 - c2 * d1));
+ res.d3 = -invdet * (a1 * (b2 * d3 - b3 * d2) + a2 * (b3 * d1 - b1 * d3) + a3 * (b1 * d2 - b2 * d1));
+ res.d4 = invdet * (a1 * (b2 * c3 - b3 * c2) + a2 * (b3 * c1 - b1 * c3) + a3 * (b1 * c2 - b2 * c1));
+ *this = res;
+
+ return *this;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+TReal* aiMatrix4x4t<TReal>::operator[](unsigned int p_iIndex) {
+ if (p_iIndex > 3) {
+ return nullptr;
+ }
+ switch ( p_iIndex ) {
+ case 0:
+ return &a1;
+ case 1:
+ return &b1;
+ case 2:
+ return &c1;
+ case 3:
+ return &d1;
+ default:
+ break;
+ }
+ return &a1;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+const TReal* aiMatrix4x4t<TReal>::operator[](unsigned int p_iIndex) const {
+ if (p_iIndex > 3) {
+ return nullptr;
+ }
+
+ switch ( p_iIndex ) {
+ case 0:
+ return &a1;
+ case 1:
+ return &b1;
+ case 2:
+ return &c1;
+ case 3:
+ return &d1;
+ default:
+ break;
+ }
+ return &a1;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+bool aiMatrix4x4t<TReal>::operator== (const aiMatrix4x4t<TReal>& m) const {
+ return (a1 == m.a1 && a2 == m.a2 && a3 == m.a3 && a4 == m.a4 &&
+ b1 == m.b1 && b2 == m.b2 && b3 == m.b3 && b4 == m.b4 &&
+ c1 == m.c1 && c2 == m.c2 && c3 == m.c3 && c4 == m.c4 &&
+ d1 == m.d1 && d2 == m.d2 && d3 == m.d3 && d4 == m.d4);
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+bool aiMatrix4x4t<TReal>::operator!= (const aiMatrix4x4t<TReal>& m) const {
+ return !(*this == m);
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+AI_FORCE_INLINE
+bool aiMatrix4x4t<TReal>::Equal(const aiMatrix4x4t<TReal>& m, TReal epsilon) const {
+ return
+ std::abs(a1 - m.a1) <= epsilon &&
+ std::abs(a2 - m.a2) <= epsilon &&
+ std::abs(a3 - m.a3) <= epsilon &&
+ std::abs(a4 - m.a4) <= epsilon &&
+ std::abs(b1 - m.b1) <= epsilon &&
+ std::abs(b2 - m.b2) <= epsilon &&
+ std::abs(b3 - m.b3) <= epsilon &&
+ std::abs(b4 - m.b4) <= epsilon &&
+ std::abs(c1 - m.c1) <= epsilon &&
+ std::abs(c2 - m.c2) <= epsilon &&
+ std::abs(c3 - m.c3) <= epsilon &&
+ std::abs(c4 - m.c4) <= epsilon &&
+ std::abs(d1 - m.d1) <= epsilon &&
+ std::abs(d2 - m.d2) <= epsilon &&
+ std::abs(d3 - m.d3) <= epsilon &&
+ std::abs(d4 - m.d4) <= epsilon;
+}
+
+// ----------------------------------------------------------------------------------------
+
+#define ASSIMP_MATRIX4_4_DECOMPOSE_PART \
+ const aiMatrix4x4t<TReal>& _this = *this;/* Create alias for conveniance. */ \
+ \
+ /* extract translation */ \
+ pPosition.x = _this[0][3]; \
+ pPosition.y = _this[1][3]; \
+ pPosition.z = _this[2][3]; \
+ \
+ /* extract the columns of the matrix. */ \
+ aiVector3t<TReal> vCols[3] = { \
+ aiVector3t<TReal>(_this[0][0],_this[1][0],_this[2][0]), \
+ aiVector3t<TReal>(_this[0][1],_this[1][1],_this[2][1]), \
+ aiVector3t<TReal>(_this[0][2],_this[1][2],_this[2][2]) \
+ }; \
+ \
+ /* extract the scaling factors */ \
+ pScaling.x = vCols[0].Length(); \
+ pScaling.y = vCols[1].Length(); \
+ pScaling.z = vCols[2].Length(); \
+ \
+ /* and the sign of the scaling */ \
+ if (Determinant() < 0) pScaling = -pScaling; \
+ \
+ /* and remove all scaling from the matrix */ \
+ if(pScaling.x) vCols[0] /= pScaling.x; \
+ if(pScaling.y) vCols[1] /= pScaling.y; \
+ if(pScaling.z) vCols[2] /= pScaling.z; \
+ \
+ do {} while(false)
+
+template <typename TReal>
+AI_FORCE_INLINE
+void aiMatrix4x4t<TReal>::Decompose (aiVector3t<TReal>& pScaling, aiQuaterniont<TReal>& pRotation,
+ aiVector3t<TReal>& pPosition) const {
+ ASSIMP_MATRIX4_4_DECOMPOSE_PART;
+
+ // build a 3x3 rotation matrix
+ aiMatrix3x3t<TReal> m(vCols[0].x,vCols[1].x,vCols[2].x,
+ vCols[0].y,vCols[1].y,vCols[2].y,
+ vCols[0].z,vCols[1].z,vCols[2].z);
+
+ // and generate the rotation quaternion from it
+ pRotation = aiQuaterniont<TReal>(m);
+}
+
+template <typename TReal>
+AI_FORCE_INLINE
+void aiMatrix4x4t<TReal>::Decompose(aiVector3t<TReal>& pScaling, aiVector3t<TReal>& pRotation, aiVector3t<TReal>& pPosition) const {
+ ASSIMP_MATRIX4_4_DECOMPOSE_PART;
+
+ /*
+ assuming a right-handed coordinate system
+ and post-multiplication of column vectors,
+ the rotation matrix for an euler XYZ rotation is M = Rz * Ry * Rx.
+ combining gives:
+
+ | CE BDE-AF ADE+BF 0 |
+ M = | CF BDF+AE ADF-BE 0 |
+ | -D CB AC 0 |
+ | 0 0 0 1 |
+
+ where
+ A = cos(angle_x), B = sin(angle_x);
+ C = cos(angle_y), D = sin(angle_y);
+ E = cos(angle_z), F = sin(angle_z);
+ */
+
+ // Use a small epsilon to solve floating-point inaccuracies
+ const TReal epsilon = Assimp::Math::getEpsilon<TReal>();
+
+ pRotation.y = std::asin(-vCols[0].z);// D. Angle around oY.
+
+ TReal C = std::cos(pRotation.y);
+
+ if(std::fabs(C) > epsilon)
+ {
+ // Finding angle around oX.
+ TReal tan_x = vCols[2].z / C;// A
+ TReal tan_y = vCols[1].z / C;// B
+
+ pRotation.x = std::atan2(tan_y, tan_x);
+ // Finding angle around oZ.
+ tan_x = vCols[0].x / C;// E
+ tan_y = vCols[0].y / C;// F
+ pRotation.z = std::atan2(tan_y, tan_x);
+ }
+ else
+ {// oY is fixed.
+ pRotation.x = 0;// Set angle around oX to 0. => A == 1, B == 0, C == 0, D == 1.
+
+ // And finding angle around oZ.
+ TReal tan_x = vCols[1].y;// BDF+AE => E
+ TReal tan_y = -vCols[1].x;// BDE-AF => F
+
+ pRotation.z = std::atan2(tan_y, tan_x);
+ }
+}
+
+#undef ASSIMP_MATRIX4_4_DECOMPOSE_PART
+
+template <typename TReal>
+AI_FORCE_INLINE
+void aiMatrix4x4t<TReal>::Decompose(aiVector3t<TReal>& pScaling, aiVector3t<TReal>& pRotationAxis, TReal& pRotationAngle,
+ aiVector3t<TReal>& pPosition) const {
+ aiQuaterniont<TReal> pRotation;
+
+ Decompose(pScaling, pRotation, pPosition);
+ pRotation.Normalize();
+
+ TReal angle_cos = pRotation.w;
+ TReal angle_sin = std::sqrt(1.0f - angle_cos * angle_cos);
+
+ pRotationAngle = std::acos(angle_cos) * 2;
+
+ // Use a small epsilon to solve floating-point inaccuracies
+ const TReal epsilon = 10e-3f;
+
+ if(std::fabs(angle_sin) < epsilon) angle_sin = 1;
+
+ pRotationAxis.x = pRotation.x / angle_sin;
+ pRotationAxis.y = pRotation.y / angle_sin;
+ pRotationAxis.z = pRotation.z / angle_sin;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+void aiMatrix4x4t<TReal>::DecomposeNoScaling (aiQuaterniont<TReal>& rotation,
+ aiVector3t<TReal>& position) const {
+ const aiMatrix4x4t<TReal>& _this = *this;
+
+ // extract translation
+ position.x = _this[0][3];
+ position.y = _this[1][3];
+ position.z = _this[2][3];
+
+ // extract rotation
+ rotation = aiQuaterniont<TReal>((aiMatrix3x3t<TReal>)_this);
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::FromEulerAnglesXYZ(const aiVector3t<TReal>& blubb) {
+ return FromEulerAnglesXYZ(blubb.x,blubb.y,blubb.z);
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::FromEulerAnglesXYZ(TReal x, TReal y, TReal z) {
+ aiMatrix4x4t<TReal>& _this = *this;
+
+ TReal cx = std::cos(x);
+ TReal sx = std::sin(x);
+ TReal cy = std::cos(y);
+ TReal sy = std::sin(y);
+ TReal cz = std::cos(z);
+ TReal sz = std::sin(z);
+
+ // mz*my*mx
+ _this.a1 = cz * cy;
+ _this.a2 = cz * sy * sx - sz * cx;
+ _this.a3 = sz * sx + cz * sy * cx;
+
+ _this.b1 = sz * cy;
+ _this.b2 = cz * cx + sz * sy * sx;
+ _this.b3 = sz * sy * cx - cz * sx;
+
+ _this.c1 = -sy;
+ _this.c2 = cy * sx;
+ _this.c3 = cy * cx;
+
+ return *this;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+bool aiMatrix4x4t<TReal>::IsIdentity() const {
+ // Use a small epsilon to solve floating-point inaccuracies
+ const static TReal epsilon = 10e-3f;
+
+ return (a2 <= epsilon && a2 >= -epsilon &&
+ a3 <= epsilon && a3 >= -epsilon &&
+ a4 <= epsilon && a4 >= -epsilon &&
+ b1 <= epsilon && b1 >= -epsilon &&
+ b3 <= epsilon && b3 >= -epsilon &&
+ b4 <= epsilon && b4 >= -epsilon &&
+ c1 <= epsilon && c1 >= -epsilon &&
+ c2 <= epsilon && c2 >= -epsilon &&
+ c4 <= epsilon && c4 >= -epsilon &&
+ d1 <= epsilon && d1 >= -epsilon &&
+ d2 <= epsilon && d2 >= -epsilon &&
+ d3 <= epsilon && d3 >= -epsilon &&
+ a1 <= 1.f+epsilon && a1 >= 1.f-epsilon &&
+ b2 <= 1.f+epsilon && b2 >= 1.f-epsilon &&
+ c3 <= 1.f+epsilon && c3 >= 1.f-epsilon &&
+ d4 <= 1.f+epsilon && d4 >= 1.f-epsilon);
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::RotationX(TReal a, aiMatrix4x4t<TReal>& out) {
+ /*
+ | 1 0 0 0 |
+ M = | 0 cos(A) -sin(A) 0 |
+ | 0 sin(A) cos(A) 0 |
+ | 0 0 0 1 | */
+ out = aiMatrix4x4t<TReal>();
+ out.b2 = out.c3 = std::cos(a);
+ out.b3 = -(out.c2 = std::sin(a));
+ return out;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::RotationY(TReal a, aiMatrix4x4t<TReal>& out) {
+ /*
+ | cos(A) 0 sin(A) 0 |
+ M = | 0 1 0 0 |
+ | -sin(A) 0 cos(A) 0 |
+ | 0 0 0 1 |
+ */
+ out = aiMatrix4x4t<TReal>();
+ out.a1 = out.c3 = std::cos(a);
+ out.c1 = -(out.a3 = std::sin(a));
+ return out;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::RotationZ(TReal a, aiMatrix4x4t<TReal>& out) {
+ /*
+ | cos(A) -sin(A) 0 0 |
+ M = | sin(A) cos(A) 0 0 |
+ | 0 0 1 0 |
+ | 0 0 0 1 | */
+ out = aiMatrix4x4t<TReal>();
+ out.a1 = out.b2 = std::cos(a);
+ out.a2 = -(out.b1 = std::sin(a));
+ return out;
+}
+
+// ----------------------------------------------------------------------------------------
+// Returns a rotation matrix for a rotation around an arbitrary axis.
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::Rotation( TReal a, const aiVector3t<TReal>& axis, aiMatrix4x4t<TReal>& out) {
+ TReal c = std::cos( a), s = std::sin( a), t = 1 - c;
+ TReal x = axis.x, y = axis.y, z = axis.z;
+
+ // Many thanks to MathWorld and Wikipedia
+ out.a1 = t*x*x + c; out.a2 = t*x*y - s*z; out.a3 = t*x*z + s*y;
+ out.b1 = t*x*y + s*z; out.b2 = t*y*y + c; out.b3 = t*y*z - s*x;
+ out.c1 = t*x*z - s*y; out.c2 = t*y*z + s*x; out.c3 = t*z*z + c;
+ out.a4 = out.b4 = out.c4 = static_cast<TReal>(0.0);
+ out.d1 = out.d2 = out.d3 = static_cast<TReal>(0.0);
+ out.d4 = static_cast<TReal>(1.0);
+
+ return out;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::Translation( const aiVector3t<TReal>& v, aiMatrix4x4t<TReal>& out) {
+ out = aiMatrix4x4t<TReal>();
+ out.a4 = v.x;
+ out.b4 = v.y;
+ out.c4 = v.z;
+ return out;
+}
+
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::Scaling( const aiVector3t<TReal>& v, aiMatrix4x4t<TReal>& out) {
+ out = aiMatrix4x4t<TReal>();
+ out.a1 = v.x;
+ out.b2 = v.y;
+ out.c3 = v.z;
+ return out;
+}
+
+// ----------------------------------------------------------------------------------------
+/** A function for creating a rotation matrix that rotates a vector called
+ * "from" into another vector called "to".
+ * Input : from[3], to[3] which both must be *normalized* non-zero vectors
+ * Output: mtx[3][3] -- a 3x3 matrix in colum-major form
+ * Authors: Tomas Möller, John Hughes
+ * "Efficiently Building a Matrix to Rotate One Vector to Another"
+ * Journal of Graphics Tools, 4(4):1-4, 1999
+ */
+// ----------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiMatrix4x4t<TReal>& aiMatrix4x4t<TReal>::FromToMatrix(const aiVector3t<TReal>& from,
+ const aiVector3t<TReal>& to, aiMatrix4x4t<TReal>& mtx) {
+ aiMatrix3x3t<TReal> m3;
+ aiMatrix3x3t<TReal>::FromToMatrix(from,to,m3);
+ mtx = aiMatrix4x4t<TReal>(m3);
+ return mtx;
+}
+
+#endif // __cplusplus
+#endif // AI_MATRIX4X4_INL_INC
diff --git a/src/mesh/assimp-master/include/assimp/mesh.h b/src/mesh/assimp-master/include/assimp/mesh.h
new file mode 100644
index 0000000..5704e7c
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/mesh.h
@@ -0,0 +1,943 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file mesh.h
+ * @brief Declares the data structures in which the imported geometry is
+ returned by ASSIMP: aiMesh, aiFace and aiBone data structures.
+ */
+#pragma once
+#ifndef AI_MESH_H_INC
+#define AI_MESH_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#ifdef _MSC_VER
+#pragma warning(disable : 4351)
+#endif // _MSC_VER
+
+#include <assimp/aabb.h>
+#include <assimp/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------------
+// Limits. These values are required to match the settings Assimp was
+// compiled against. Therefore, do not redefine them unless you build the
+// library from source using the same definitions.
+// ---------------------------------------------------------------------------
+
+/** @def AI_MAX_FACE_INDICES
+ * Maximum number of indices per face (polygon). */
+
+#ifndef AI_MAX_FACE_INDICES
+#define AI_MAX_FACE_INDICES 0x7fff
+#endif
+
+/** @def AI_MAX_BONE_WEIGHTS
+ * Maximum number of indices per face (polygon). */
+
+#ifndef AI_MAX_BONE_WEIGHTS
+#define AI_MAX_BONE_WEIGHTS 0x7fffffff
+#endif
+
+/** @def AI_MAX_VERTICES
+ * Maximum number of vertices per mesh. */
+
+#ifndef AI_MAX_VERTICES
+#define AI_MAX_VERTICES 0x7fffffff
+#endif
+
+/** @def AI_MAX_FACES
+ * Maximum number of faces per mesh. */
+
+#ifndef AI_MAX_FACES
+#define AI_MAX_FACES 0x7fffffff
+#endif
+
+/** @def AI_MAX_NUMBER_OF_COLOR_SETS
+ * Supported number of vertex color sets per mesh. */
+
+#ifndef AI_MAX_NUMBER_OF_COLOR_SETS
+#define AI_MAX_NUMBER_OF_COLOR_SETS 0x8
+#endif // !! AI_MAX_NUMBER_OF_COLOR_SETS
+
+/** @def AI_MAX_NUMBER_OF_TEXTURECOORDS
+ * Supported number of texture coord sets (UV(W) channels) per mesh */
+
+#ifndef AI_MAX_NUMBER_OF_TEXTURECOORDS
+#define AI_MAX_NUMBER_OF_TEXTURECOORDS 0x8
+#endif // !! AI_MAX_NUMBER_OF_TEXTURECOORDS
+
+// ---------------------------------------------------------------------------
+/** @brief A single face in a mesh, referring to multiple vertices.
+ *
+ * If mNumIndices is 3, we call the face 'triangle', for mNumIndices > 3
+ * it's called 'polygon' (hey, that's just a definition!).
+ * <br>
+ * aiMesh::mPrimitiveTypes can be queried to quickly examine which types of
+ * primitive are actually present in a mesh. The #aiProcess_SortByPType flag
+ * executes a special post-processing algorithm which splits meshes with
+ * *different* primitive types mixed up (e.g. lines and triangles) in several
+ * 'clean' submeshes. Furthermore there is a configuration option (
+ * #AI_CONFIG_PP_SBP_REMOVE) to force #aiProcess_SortByPType to remove
+ * specific kinds of primitives from the imported scene, completely and forever.
+ * In many cases you'll probably want to set this setting to
+ * @code
+ * aiPrimitiveType_LINE|aiPrimitiveType_POINT
+ * @endcode
+ * Together with the #aiProcess_Triangulate flag you can then be sure that
+ * #aiFace::mNumIndices is always 3.
+ * @note Take a look at the @link data Data Structures page @endlink for
+ * more information on the layout and winding order of a face.
+ */
+struct aiFace {
+ //! Number of indices defining this face.
+ //! The maximum value for this member is #AI_MAX_FACE_INDICES.
+ unsigned int mNumIndices;
+
+ //! Pointer to the indices array. Size of the array is given in numIndices.
+ unsigned int *mIndices;
+
+#ifdef __cplusplus
+
+ //! Default constructor
+ aiFace() AI_NO_EXCEPT
+ : mNumIndices(0),
+ mIndices(nullptr) {
+ // empty
+ }
+
+ //! Default destructor. Delete the index array
+ ~aiFace() {
+ delete[] mIndices;
+ }
+
+ //! Copy constructor. Copy the index array
+ aiFace(const aiFace &o) :
+ mNumIndices(0), mIndices(nullptr) {
+ *this = o;
+ }
+
+ //! Assignment operator. Copy the index array
+ aiFace &operator=(const aiFace &o) {
+ if (&o == this) {
+ return *this;
+ }
+
+ delete[] mIndices;
+ mNumIndices = o.mNumIndices;
+ if (mNumIndices) {
+ mIndices = new unsigned int[mNumIndices];
+ ::memcpy(mIndices, o.mIndices, mNumIndices * sizeof(unsigned int));
+ } else {
+ mIndices = nullptr;
+ }
+
+ return *this;
+ }
+
+ //! Comparison operator. Checks whether the index array
+ //! of two faces is identical
+ bool operator==(const aiFace &o) const {
+ if (mIndices == o.mIndices) {
+ return true;
+ }
+
+ if (nullptr != mIndices && mNumIndices != o.mNumIndices) {
+ return false;
+ }
+
+ if (nullptr == mIndices) {
+ return false;
+ }
+
+ for (unsigned int i = 0; i < this->mNumIndices; ++i) {
+ if (mIndices[i] != o.mIndices[i]) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ //! Inverse comparison operator. Checks whether the index
+ //! array of two faces is NOT identical
+ bool operator!=(const aiFace &o) const {
+ return !(*this == o);
+ }
+#endif // __cplusplus
+}; // struct aiFace
+
+// ---------------------------------------------------------------------------
+/** @brief A single influence of a bone on a vertex.
+ */
+struct aiVertexWeight {
+ //! Index of the vertex which is influenced by the bone.
+ unsigned int mVertexId;
+
+ //! The strength of the influence in the range (0...1).
+ //! The influence from all bones at one vertex amounts to 1.
+ ai_real mWeight;
+
+#ifdef __cplusplus
+
+ //! Default constructor
+ aiVertexWeight() AI_NO_EXCEPT
+ : mVertexId(0),
+ mWeight(0.0f) {
+ // empty
+ }
+
+ //! Initialization from a given index and vertex weight factor
+ //! \param pID ID
+ //! \param pWeight Vertex weight factor
+ aiVertexWeight(unsigned int pID, float pWeight) :
+ mVertexId(pID), mWeight(pWeight) {
+ // empty
+ }
+
+ bool operator==(const aiVertexWeight &rhs) const {
+ return (mVertexId == rhs.mVertexId && mWeight == rhs.mWeight);
+ }
+
+ bool operator!=(const aiVertexWeight &rhs) const {
+ return (*this == rhs);
+ }
+
+#endif // __cplusplus
+};
+
+// Forward declare aiNode (pointer use only)
+struct aiNode;
+
+// ---------------------------------------------------------------------------
+/** @brief A single bone of a mesh.
+ *
+ * A bone has a name by which it can be found in the frame hierarchy and by
+ * which it can be addressed by animations. In addition it has a number of
+ * influences on vertices, and a matrix relating the mesh position to the
+ * position of the bone at the time of binding.
+ */
+struct aiBone {
+ //! The name of the bone.
+ C_STRUCT aiString mName;
+
+ //! The number of vertices affected by this bone.
+ //! The maximum value for this member is #AI_MAX_BONE_WEIGHTS.
+ unsigned int mNumWeights;
+
+#ifndef ASSIMP_BUILD_NO_ARMATUREPOPULATE_PROCESS
+ // The bone armature node - used for skeleton conversion
+ // you must enable aiProcess_PopulateArmatureData to populate this
+ C_STRUCT aiNode *mArmature;
+
+ // The bone node in the scene - used for skeleton conversion
+ // you must enable aiProcess_PopulateArmatureData to populate this
+ C_STRUCT aiNode *mNode;
+
+#endif
+ //! The influence weights of this bone, by vertex index.
+ C_STRUCT aiVertexWeight *mWeights;
+
+ /** Matrix that transforms from bone space to mesh space in bind pose.
+ *
+ * This matrix describes the position of the mesh
+ * in the local space of this bone when the skeleton was bound.
+ * Thus it can be used directly to determine a desired vertex position,
+ * given the world-space transform of the bone when animated,
+ * and the position of the vertex in mesh space.
+ *
+ * It is sometimes called an inverse-bind matrix,
+ * or inverse bind pose matrix.
+ */
+ C_STRUCT aiMatrix4x4 mOffsetMatrix;
+
+#ifdef __cplusplus
+
+ //! Default constructor
+ aiBone() AI_NO_EXCEPT
+ : mName(),
+ mNumWeights(0),
+#ifndef ASSIMP_BUILD_NO_ARMATUREPOPULATE_PROCESS
+ mArmature(nullptr),
+ mNode(nullptr),
+#endif
+ mWeights(nullptr),
+ mOffsetMatrix() {
+ // empty
+ }
+
+ //! Copy constructor
+ aiBone(const aiBone &other) :
+ mName(other.mName),
+ mNumWeights(other.mNumWeights),
+#ifndef ASSIMP_BUILD_NO_ARMATUREPOPULATE_PROCESS
+ mArmature(nullptr),
+ mNode(nullptr),
+#endif
+ mWeights(nullptr),
+ mOffsetMatrix(other.mOffsetMatrix) {
+ if (other.mWeights && other.mNumWeights) {
+ mWeights = new aiVertexWeight[mNumWeights];
+ ::memcpy(mWeights, other.mWeights, mNumWeights * sizeof(aiVertexWeight));
+ }
+ }
+
+ //! Assignment operator
+ aiBone &operator=(const aiBone &other) {
+ if (this == &other) {
+ return *this;
+ }
+
+ mName = other.mName;
+ mNumWeights = other.mNumWeights;
+ mOffsetMatrix = other.mOffsetMatrix;
+
+ if (other.mWeights && other.mNumWeights) {
+ if (mWeights) {
+ delete[] mWeights;
+ }
+
+ mWeights = new aiVertexWeight[mNumWeights];
+ ::memcpy(mWeights, other.mWeights, mNumWeights * sizeof(aiVertexWeight));
+ }
+
+ return *this;
+ }
+
+ bool operator==(const aiBone &rhs) const {
+ if (mName != rhs.mName || mNumWeights != rhs.mNumWeights) {
+ return false;
+ }
+
+ for (size_t i = 0; i < mNumWeights; ++i) {
+ if (mWeights[i] != rhs.mWeights[i]) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+ //! Destructor - deletes the array of vertex weights
+ ~aiBone() {
+ delete[] mWeights;
+ }
+#endif // __cplusplus
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Enumerates the types of geometric primitives supported by Assimp.
+ *
+ * @see aiFace Face data structure
+ * @see aiProcess_SortByPType Per-primitive sorting of meshes
+ * @see aiProcess_Triangulate Automatic triangulation
+ * @see AI_CONFIG_PP_SBP_REMOVE Removal of specific primitive types.
+ */
+enum aiPrimitiveType {
+ /** A point primitive.
+ *
+ * This is just a single vertex in the virtual world,
+ * #aiFace contains just one index for such a primitive.
+ */
+ aiPrimitiveType_POINT = 0x1,
+
+ /** A line primitive.
+ *
+ * This is a line defined through a start and an end position.
+ * #aiFace contains exactly two indices for such a primitive.
+ */
+ aiPrimitiveType_LINE = 0x2,
+
+ /** A triangular primitive.
+ *
+ * A triangle consists of three indices.
+ */
+ aiPrimitiveType_TRIANGLE = 0x4,
+
+ /** A higher-level polygon with more than 3 edges.
+ *
+ * A triangle is a polygon, but polygon in this context means
+ * "all polygons that are not triangles". The "Triangulate"-Step
+ * is provided for your convenience, it splits all polygons in
+ * triangles (which are much easier to handle).
+ */
+ aiPrimitiveType_POLYGON = 0x8,
+
+ /**
+ * A flag to determine whether this triangles only mesh is NGON encoded.
+ *
+ * NGON encoding is a special encoding that tells whether 2 or more consecutive triangles
+ * should be considered as a triangle fan. This is identified by looking at the first vertex index.
+ * 2 consecutive triangles with the same 1st vertex index are part of the same
+ * NGON.
+ *
+ * At the moment, only quads (concave or convex) are supported, meaning that polygons are 'seen' as
+ * triangles, as usual after a triangulation pass.
+ *
+ * To get an NGON encoded mesh, please use the aiProcess_Triangulate post process.
+ *
+ * @see aiProcess_Triangulate
+ * @link https://github.com/KhronosGroup/glTF/pull/1620
+ */
+ aiPrimitiveType_NGONEncodingFlag = 0x10,
+
+/** This value is not used. It is just here to force the
+ * compiler to map this enum to a 32 Bit integer.
+ */
+#ifndef SWIG
+ _aiPrimitiveType_Force32Bit = INT_MAX
+#endif
+}; //! enum aiPrimitiveType
+
+// Get the #aiPrimitiveType flag for a specific number of face indices
+#define AI_PRIMITIVE_TYPE_FOR_N_INDICES(n) \
+ ((n) > 3 ? aiPrimitiveType_POLYGON : (aiPrimitiveType)(1u << ((n)-1)))
+
+// ---------------------------------------------------------------------------
+/** @brief An AnimMesh is an attachment to an #aiMesh stores per-vertex
+ * animations for a particular frame.
+ *
+ * You may think of an #aiAnimMesh as a `patch` for the host mesh, which
+ * replaces only certain vertex data streams at a particular time.
+ * Each mesh stores n attached attached meshes (#aiMesh::mAnimMeshes).
+ * The actual relationship between the time line and anim meshes is
+ * established by #aiMeshAnim, which references singular mesh attachments
+ * by their ID and binds them to a time offset.
+*/
+struct aiAnimMesh {
+ /**Anim Mesh name */
+ C_STRUCT aiString mName;
+
+ /** Replacement for aiMesh::mVertices. If this array is non-nullptr,
+ * it *must* contain mNumVertices entries. The corresponding
+ * array in the host mesh must be non-nullptr as well - animation
+ * meshes may neither add or nor remove vertex components (if
+ * a replacement array is nullptr and the corresponding source
+ * array is not, the source data is taken instead)*/
+ C_STRUCT aiVector3D *mVertices;
+
+ /** Replacement for aiMesh::mNormals. */
+ C_STRUCT aiVector3D *mNormals;
+
+ /** Replacement for aiMesh::mTangents. */
+ C_STRUCT aiVector3D *mTangents;
+
+ /** Replacement for aiMesh::mBitangents. */
+ C_STRUCT aiVector3D *mBitangents;
+
+ /** Replacement for aiMesh::mColors */
+ C_STRUCT aiColor4D *mColors[AI_MAX_NUMBER_OF_COLOR_SETS];
+
+ /** Replacement for aiMesh::mTextureCoords */
+ C_STRUCT aiVector3D *mTextureCoords[AI_MAX_NUMBER_OF_TEXTURECOORDS];
+
+ /** The number of vertices in the aiAnimMesh, and thus the length of all
+ * the member arrays.
+ *
+ * This has always the same value as the mNumVertices property in the
+ * corresponding aiMesh. It is duplicated here merely to make the length
+ * of the member arrays accessible even if the aiMesh is not known, e.g.
+ * from language bindings.
+ */
+ unsigned int mNumVertices;
+
+ /**
+ * Weight of the AnimMesh.
+ */
+ float mWeight;
+
+#ifdef __cplusplus
+
+ aiAnimMesh() AI_NO_EXCEPT
+ : mVertices(nullptr),
+ mNormals(nullptr),
+ mTangents(nullptr),
+ mBitangents(nullptr),
+ mColors(),
+ mTextureCoords(),
+ mNumVertices(0),
+ mWeight(0.0f) {
+ // fixme consider moving this to the ctor initializer list as well
+ for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; a++) {
+ mTextureCoords[a] = nullptr;
+ }
+ for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; a++) {
+ mColors[a] = nullptr;
+ }
+ }
+
+ ~aiAnimMesh() {
+ delete[] mVertices;
+ delete[] mNormals;
+ delete[] mTangents;
+ delete[] mBitangents;
+ for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; a++) {
+ delete[] mTextureCoords[a];
+ }
+ for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; a++) {
+ delete[] mColors[a];
+ }
+ }
+
+ /** Check whether the anim mesh overrides the vertex positions
+ * of its host mesh*/
+ bool HasPositions() const {
+ return mVertices != nullptr;
+ }
+
+ /** Check whether the anim mesh overrides the vertex normals
+ * of its host mesh*/
+ bool HasNormals() const {
+ return mNormals != nullptr;
+ }
+
+ /** Check whether the anim mesh overrides the vertex tangents
+ * and bitangents of its host mesh. As for aiMesh,
+ * tangents and bitangents always go together. */
+ bool HasTangentsAndBitangents() const {
+ return mTangents != nullptr;
+ }
+
+ /** Check whether the anim mesh overrides a particular
+ * set of vertex colors on his host mesh.
+ * @param pIndex 0<index<AI_MAX_NUMBER_OF_COLOR_SETS */
+ bool HasVertexColors(unsigned int pIndex) const {
+ return pIndex >= AI_MAX_NUMBER_OF_COLOR_SETS ? false : mColors[pIndex] != nullptr;
+ }
+
+ /** Check whether the anim mesh overrides a particular
+ * set of texture coordinates on his host mesh.
+ * @param pIndex 0<index<AI_MAX_NUMBER_OF_TEXTURECOORDS */
+ bool HasTextureCoords(unsigned int pIndex) const {
+ return pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS ? false : mTextureCoords[pIndex] != nullptr;
+ }
+
+#endif
+};
+
+// ---------------------------------------------------------------------------
+/** @brief Enumerates the methods of mesh morphing supported by Assimp.
+ */
+enum aiMorphingMethod {
+ /** Interpolation between morph targets */
+ aiMorphingMethod_VERTEX_BLEND = 0x1,
+
+ /** Normalized morphing between morph targets */
+ aiMorphingMethod_MORPH_NORMALIZED = 0x2,
+
+ /** Relative morphing between morph targets */
+ aiMorphingMethod_MORPH_RELATIVE = 0x3,
+
+/** This value is not used. It is just here to force the
+ * compiler to map this enum to a 32 Bit integer.
+ */
+#ifndef SWIG
+ _aiMorphingMethod_Force32Bit = INT_MAX
+#endif
+}; //! enum aiMorphingMethod
+
+// ---------------------------------------------------------------------------
+/** @brief A mesh represents a geometry or model with a single material.
+*
+* It usually consists of a number of vertices and a series of primitives/faces
+* referencing the vertices. In addition there might be a series of bones, each
+* of them addressing a number of vertices with a certain weight. Vertex data
+* is presented in channels with each channel containing a single per-vertex
+* information such as a set of texture coordinates or a normal vector.
+* If a data pointer is non-null, the corresponding data stream is present.
+* From C++-programs you can also use the comfort functions Has*() to
+* test for the presence of various data streams.
+*
+* A Mesh uses only a single material which is referenced by a material ID.
+* @note The mPositions member is usually not optional. However, vertex positions
+* *could* be missing if the #AI_SCENE_FLAGS_INCOMPLETE flag is set in
+* @code
+* aiScene::mFlags
+* @endcode
+*/
+struct aiMesh {
+ /** Bitwise combination of the members of the #aiPrimitiveType enum.
+ * This specifies which types of primitives are present in the mesh.
+ * The "SortByPrimitiveType"-Step can be used to make sure the
+ * output meshes consist of one primitive type each.
+ */
+ unsigned int mPrimitiveTypes;
+
+ /** The number of vertices in this mesh.
+ * This is also the size of all of the per-vertex data arrays.
+ * The maximum value for this member is #AI_MAX_VERTICES.
+ */
+ unsigned int mNumVertices;
+
+ /** The number of primitives (triangles, polygons, lines) in this mesh.
+ * This is also the size of the mFaces array.
+ * The maximum value for this member is #AI_MAX_FACES.
+ */
+ unsigned int mNumFaces;
+
+ /** Vertex positions.
+ * This array is always present in a mesh. The array is
+ * mNumVertices in size.
+ */
+ C_STRUCT aiVector3D *mVertices;
+
+ /** Vertex normals.
+ * The array contains normalized vectors, nullptr if not present.
+ * The array is mNumVertices in size. Normals are undefined for
+ * point and line primitives. A mesh consisting of points and
+ * lines only may not have normal vectors. Meshes with mixed
+ * primitive types (i.e. lines and triangles) may have normals,
+ * but the normals for vertices that are only referenced by
+ * point or line primitives are undefined and set to QNaN (WARN:
+ * qNaN compares to inequal to *everything*, even to qNaN itself.
+ * Using code like this to check whether a field is qnan is:
+ * @code
+ * #define IS_QNAN(f) (f != f)
+ * @endcode
+ * still dangerous because even 1.f == 1.f could evaluate to false! (
+ * remember the subtleties of IEEE754 artithmetics). Use stuff like
+ * @c fpclassify instead.
+ * @note Normal vectors computed by Assimp are always unit-length.
+ * However, this needn't apply for normals that have been taken
+ * directly from the model file.
+ */
+ C_STRUCT aiVector3D *mNormals;
+
+ /** Vertex tangents.
+ * The tangent of a vertex points in the direction of the positive
+ * X texture axis. The array contains normalized vectors, nullptr if
+ * not present. The array is mNumVertices in size. A mesh consisting
+ * of points and lines only may not have normal vectors. Meshes with
+ * mixed primitive types (i.e. lines and triangles) may have
+ * normals, but the normals for vertices that are only referenced by
+ * point or line primitives are undefined and set to qNaN. See
+ * the #mNormals member for a detailed discussion of qNaNs.
+ * @note If the mesh contains tangents, it automatically also
+ * contains bitangents.
+ */
+ C_STRUCT aiVector3D *mTangents;
+
+ /** Vertex bitangents.
+ * The bitangent of a vertex points in the direction of the positive
+ * Y texture axis. The array contains normalized vectors, nullptr if not
+ * present. The array is mNumVertices in size.
+ * @note If the mesh contains tangents, it automatically also contains
+ * bitangents.
+ */
+ C_STRUCT aiVector3D *mBitangents;
+
+ /** Vertex color sets.
+ * A mesh may contain 0 to #AI_MAX_NUMBER_OF_COLOR_SETS vertex
+ * colors per vertex. nullptr if not present. Each array is
+ * mNumVertices in size if present.
+ */
+ C_STRUCT aiColor4D *mColors[AI_MAX_NUMBER_OF_COLOR_SETS];
+
+ /** Vertex texture coordinates, also known as UV channels.
+ * A mesh may contain 0 to AI_MAX_NUMBER_OF_TEXTURECOORDS per
+ * vertex. nullptr if not present. The array is mNumVertices in size.
+ */
+ C_STRUCT aiVector3D *mTextureCoords[AI_MAX_NUMBER_OF_TEXTURECOORDS];
+
+ /** Specifies the number of components for a given UV channel.
+ * Up to three channels are supported (UVW, for accessing volume
+ * or cube maps). If the value is 2 for a given channel n, the
+ * component p.z of mTextureCoords[n][p] is set to 0.0f.
+ * If the value is 1 for a given channel, p.y is set to 0.0f, too.
+ * @note 4D coordinates are not supported
+ */
+ unsigned int mNumUVComponents[AI_MAX_NUMBER_OF_TEXTURECOORDS];
+
+ /** The faces the mesh is constructed from.
+ * Each face refers to a number of vertices by their indices.
+ * This array is always present in a mesh, its size is given
+ * in mNumFaces. If the #AI_SCENE_FLAGS_NON_VERBOSE_FORMAT
+ * is NOT set each face references an unique set of vertices.
+ */
+ C_STRUCT aiFace *mFaces;
+
+ /** The number of bones this mesh contains.
+ * Can be 0, in which case the mBones array is nullptr.
+ */
+ unsigned int mNumBones;
+
+ /** The bones of this mesh.
+ * A bone consists of a name by which it can be found in the
+ * frame hierarchy and a set of vertex weights.
+ */
+ C_STRUCT aiBone **mBones;
+
+ /** The material used by this mesh.
+ * A mesh uses only a single material. If an imported model uses
+ * multiple materials, the import splits up the mesh. Use this value
+ * as index into the scene's material list.
+ */
+ unsigned int mMaterialIndex;
+
+ /** Name of the mesh. Meshes can be named, but this is not a
+ * requirement and leaving this field empty is totally fine.
+ * There are mainly three uses for mesh names:
+ * - some formats name nodes and meshes independently.
+ * - importers tend to split meshes up to meet the
+ * one-material-per-mesh requirement. Assigning
+ * the same (dummy) name to each of the result meshes
+ * aids the caller at recovering the original mesh
+ * partitioning.
+ * - Vertex animations refer to meshes by their names.
+ **/
+ C_STRUCT aiString mName;
+
+ /** The number of attachment meshes. Note! Currently only works with Collada loader. */
+ unsigned int mNumAnimMeshes;
+
+ /** Attachment meshes for this mesh, for vertex-based animation.
+ * Attachment meshes carry replacement data for some of the
+ * mesh'es vertex components (usually positions, normals).
+ * Note! Currently only works with Collada loader.*/
+ C_STRUCT aiAnimMesh **mAnimMeshes;
+
+ /**
+ * Method of morphing when anim-meshes are specified.
+ * @see aiMorphingMethod to learn more about the provided morphing targets.
+ */
+ unsigned int mMethod;
+
+ /**
+ * The bounding box.
+ */
+ C_STRUCT aiAABB mAABB;
+
+ /** Vertex UV stream names. Pointer to array of size AI_MAX_NUMBER_OF_TEXTURECOORDS
+ */
+ C_STRUCT aiString **mTextureCoordsNames;
+
+#ifdef __cplusplus
+
+ //! Default constructor. Initializes all members to 0
+ aiMesh() AI_NO_EXCEPT
+ : mPrimitiveTypes(0),
+ mNumVertices(0),
+ mNumFaces(0),
+ mVertices(nullptr),
+ mNormals(nullptr),
+ mTangents(nullptr),
+ mBitangents(nullptr),
+ mColors(),
+ mTextureCoords(),
+ mNumUVComponents(),
+ mFaces(nullptr),
+ mNumBones(0),
+ mBones(nullptr),
+ mMaterialIndex(0),
+ mNumAnimMeshes(0),
+ mAnimMeshes(nullptr),
+ mMethod(0),
+ mAABB(),
+ mTextureCoordsNames(nullptr) {
+ for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++a) {
+ mNumUVComponents[a] = 0;
+ mTextureCoords[a] = nullptr;
+ }
+
+ for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; ++a) {
+ mColors[a] = nullptr;
+ }
+ }
+
+ //! Deletes all storage allocated for the mesh
+ ~aiMesh() {
+ delete[] mVertices;
+ delete[] mNormals;
+ delete[] mTangents;
+ delete[] mBitangents;
+ for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; a++) {
+ delete[] mTextureCoords[a];
+ }
+
+ if (mTextureCoordsNames) {
+ for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; a++) {
+ delete mTextureCoordsNames[a];
+ }
+ delete[] mTextureCoordsNames;
+ }
+
+ for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_COLOR_SETS; a++) {
+ delete[] mColors[a];
+ }
+
+ // DO NOT REMOVE THIS ADDITIONAL CHECK
+ if (mNumBones && mBones) {
+ for (unsigned int a = 0; a < mNumBones; a++) {
+ if (mBones[a]) {
+ delete mBones[a];
+ }
+ }
+ delete[] mBones;
+ }
+
+ if (mNumAnimMeshes && mAnimMeshes) {
+ for (unsigned int a = 0; a < mNumAnimMeshes; a++) {
+ delete mAnimMeshes[a];
+ }
+ delete[] mAnimMeshes;
+ }
+
+ delete[] mFaces;
+ }
+
+ //! Check whether the mesh contains positions. Provided no special
+ //! scene flags are set, this will always be true
+ bool HasPositions() const { return mVertices != nullptr && mNumVertices > 0; }
+
+ //! Check whether the mesh contains faces. If no special scene flags
+ //! are set this should always return true
+ bool HasFaces() const { return mFaces != nullptr && mNumFaces > 0; }
+
+ //! Check whether the mesh contains normal vectors
+ bool HasNormals() const { return mNormals != nullptr && mNumVertices > 0; }
+
+ //! Check whether the mesh contains tangent and bitangent vectors
+ //! It is not possible that it contains tangents and no bitangents
+ //! (or the other way round). The existence of one of them
+ //! implies that the second is there, too.
+ bool HasTangentsAndBitangents() const { return mTangents != nullptr && mBitangents != nullptr && mNumVertices > 0; }
+
+ //! Check whether the mesh contains a vertex color set
+ //! \param pIndex Index of the vertex color set
+ bool HasVertexColors(unsigned int pIndex) const {
+ if (pIndex >= AI_MAX_NUMBER_OF_COLOR_SETS) {
+ return false;
+ } else {
+ return mColors[pIndex] != nullptr && mNumVertices > 0;
+ }
+ }
+
+ //! Check whether the mesh contains a texture coordinate set
+ //! \param pIndex Index of the texture coordinates set
+ bool HasTextureCoords(unsigned int pIndex) const {
+ if (pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS) {
+ return false;
+ } else {
+ return mTextureCoords[pIndex] != nullptr && mNumVertices > 0;
+ }
+ }
+
+ //! Get the number of UV channels the mesh contains
+ unsigned int GetNumUVChannels() const {
+ unsigned int n(0);
+ while (n < AI_MAX_NUMBER_OF_TEXTURECOORDS && mTextureCoords[n]) {
+ ++n;
+ }
+
+ return n;
+ }
+
+ //! Get the number of vertex color channels the mesh contains
+ unsigned int GetNumColorChannels() const {
+ unsigned int n(0);
+ while (n < AI_MAX_NUMBER_OF_COLOR_SETS && mColors[n]) {
+ ++n;
+ }
+ return n;
+ }
+
+ //! Check whether the mesh contains bones
+ bool HasBones() const {
+ return mBones != nullptr && mNumBones > 0;
+ }
+
+ //! Check whether the mesh contains a texture coordinate set name
+ //! \param pIndex Index of the texture coordinates set
+ bool HasTextureCoordsName(unsigned int pIndex) const {
+ if (mTextureCoordsNames == nullptr || pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS) {
+ return false;
+ }
+ return mTextureCoordsNames[pIndex] != nullptr;
+ }
+
+ //! Set a texture coordinate set name
+ //! \param pIndex Index of the texture coordinates set
+ //! \param texCoordsName name of the texture coordinate set
+ void SetTextureCoordsName(unsigned int pIndex, const aiString &texCoordsName) {
+ if (pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS) {
+ return;
+ }
+
+ if (mTextureCoordsNames == nullptr) {
+ // Construct and null-init array
+ mTextureCoordsNames = new aiString *[AI_MAX_NUMBER_OF_TEXTURECOORDS] {};
+ }
+
+ if (texCoordsName.length == 0) {
+ delete mTextureCoordsNames[pIndex];
+ mTextureCoordsNames[pIndex] = nullptr;
+ return;
+ }
+
+ if (mTextureCoordsNames[pIndex] == nullptr) {
+ mTextureCoordsNames[pIndex] = new aiString(texCoordsName);
+ return;
+ }
+
+ *mTextureCoordsNames[pIndex] = texCoordsName;
+ }
+
+ //! Get a texture coordinate set name
+ //! \param pIndex Index of the texture coordinates set
+ const aiString *GetTextureCoordsName(unsigned int pIndex) const {
+ if (mTextureCoordsNames == nullptr || pIndex >= AI_MAX_NUMBER_OF_TEXTURECOORDS) {
+ return nullptr;
+ }
+
+ return mTextureCoordsNames[pIndex];
+ }
+
+#endif // __cplusplus
+};
+
+#ifdef __cplusplus
+}
+#endif //! extern "C"
+#endif // AI_MESH_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/metadata.h b/src/mesh/assimp-master/include/assimp/metadata.h
new file mode 100644
index 0000000..d2ec837
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/metadata.h
@@ -0,0 +1,535 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file metadata.h
+ * @brief Defines the data structures for holding node meta information.
+ */
+#pragma once
+#ifndef AI_METADATA_H_INC
+#define AI_METADATA_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+#if defined(_MSC_VER) && (_MSC_VER <= 1500)
+#include "Compiler/pstdint.h"
+#else
+#include <stdint.h>
+#endif
+
+// -------------------------------------------------------------------------------
+/**
+ * Enum used to distinguish data types
+ */
+// -------------------------------------------------------------------------------
+typedef enum aiMetadataType {
+ AI_BOOL = 0,
+ AI_INT32 = 1,
+ AI_UINT64 = 2,
+ AI_FLOAT = 3,
+ AI_DOUBLE = 4,
+ AI_AISTRING = 5,
+ AI_AIVECTOR3D = 6,
+ AI_AIMETADATA = 7,
+ AI_META_MAX = 8,
+
+#ifndef SWIG
+ FORCE_32BIT = INT_MAX
+#endif
+} aiMetadataType;
+
+// -------------------------------------------------------------------------------
+/**
+ * Metadata entry
+ *
+ * The type field uniquely identifies the underlying type of the data field
+ */
+// -------------------------------------------------------------------------------
+struct aiMetadataEntry {
+ aiMetadataType mType;
+ void *mData;
+
+#ifdef __cplusplus
+ aiMetadataEntry() :
+ mType(AI_META_MAX),
+ mData( nullptr ) {
+ // empty
+ }
+#endif
+};
+
+#ifdef __cplusplus
+
+#include <string>
+
+struct aiMetadata;
+
+// -------------------------------------------------------------------------------
+/**
+ * Helper functions to get the aiType enum entry for a type
+ */
+// -------------------------------------------------------------------------------
+
+inline aiMetadataType GetAiType(bool) {
+ return AI_BOOL;
+}
+inline aiMetadataType GetAiType(int32_t) {
+ return AI_INT32;
+}
+inline aiMetadataType GetAiType(uint64_t) {
+ return AI_UINT64;
+}
+inline aiMetadataType GetAiType(float) {
+ return AI_FLOAT;
+}
+inline aiMetadataType GetAiType(double) {
+ return AI_DOUBLE;
+}
+inline aiMetadataType GetAiType(const aiString &) {
+ return AI_AISTRING;
+}
+inline aiMetadataType GetAiType(const aiVector3D &) {
+ return AI_AIVECTOR3D;
+}
+inline aiMetadataType GetAiType(const aiMetadata &) {
+ return AI_AIMETADATA;
+}
+
+#endif // __cplusplus
+
+// -------------------------------------------------------------------------------
+/**
+ * Container for holding metadata.
+ *
+ * Metadata is a key-value store using string keys and values.
+ */
+// -------------------------------------------------------------------------------
+struct aiMetadata {
+ /** Length of the mKeys and mValues arrays, respectively */
+ unsigned int mNumProperties;
+
+ /** Arrays of keys, may not be NULL. Entries in this array may not be NULL as well. */
+ C_STRUCT aiString *mKeys;
+
+ /** Arrays of values, may not be NULL. Entries in this array may be NULL if the
+ * corresponding property key has no assigned value. */
+ C_STRUCT aiMetadataEntry *mValues;
+
+#ifdef __cplusplus
+
+ /**
+ * @brief The default constructor, set all members to zero by default.
+ */
+ aiMetadata() AI_NO_EXCEPT
+ : mNumProperties(0),
+ mKeys(nullptr),
+ mValues(nullptr) {
+ // empty
+ }
+
+ aiMetadata(const aiMetadata &rhs) :
+ mNumProperties(rhs.mNumProperties), mKeys(nullptr), mValues(nullptr) {
+ mKeys = new aiString[mNumProperties];
+ for (size_t i = 0; i < static_cast<size_t>(mNumProperties); ++i) {
+ mKeys[i] = rhs.mKeys[i];
+ }
+ mValues = new aiMetadataEntry[mNumProperties];
+ for (size_t i = 0; i < static_cast<size_t>(mNumProperties); ++i) {
+ mValues[i].mType = rhs.mValues[i].mType;
+ switch (rhs.mValues[i].mType) {
+ case AI_BOOL:
+ mValues[i].mData = new bool;
+ ::memcpy(mValues[i].mData, rhs.mValues[i].mData, sizeof(bool));
+ break;
+ case AI_INT32: {
+ int32_t v;
+ ::memcpy(&v, rhs.mValues[i].mData, sizeof(int32_t));
+ mValues[i].mData = new int32_t(v);
+ } break;
+ case AI_UINT64: {
+ uint64_t v;
+ ::memcpy(&v, rhs.mValues[i].mData, sizeof(uint64_t));
+ mValues[i].mData = new uint64_t(v);
+ } break;
+ case AI_FLOAT: {
+ float v;
+ ::memcpy(&v, rhs.mValues[i].mData, sizeof(float));
+ mValues[i].mData = new float(v);
+ } break;
+ case AI_DOUBLE: {
+ double v;
+ ::memcpy(&v, rhs.mValues[i].mData, sizeof(double));
+ mValues[i].mData = new double(v);
+ } break;
+ case AI_AISTRING: {
+ aiString v;
+ rhs.Get<aiString>(static_cast<unsigned int>(i), v);
+ mValues[i].mData = new aiString(v);
+ } break;
+ case AI_AIVECTOR3D: {
+ aiVector3D v;
+ rhs.Get<aiVector3D>(static_cast<unsigned int>(i), v);
+ mValues[i].mData = new aiVector3D(v);
+ } break;
+ case AI_AIMETADATA: {
+ aiMetadata v;
+ rhs.Get<aiMetadata>(static_cast<unsigned int>(i), v);
+ mValues[i].mData = new aiMetadata(v);
+ } break;
+#ifndef SWIG
+ case FORCE_32BIT:
+#endif
+ default:
+ break;
+ }
+ }
+ }
+
+ aiMetadata &operator=(aiMetadata rhs) {
+ using std::swap;
+ swap(mNumProperties, rhs.mNumProperties);
+ swap(mKeys, rhs.mKeys);
+ swap(mValues, rhs.mValues);
+ return *this;
+ }
+
+ /**
+ * @brief The destructor.
+ */
+ ~aiMetadata() {
+ delete[] mKeys;
+ mKeys = nullptr;
+ if (mValues) {
+ // Delete each metadata entry
+ for (unsigned i = 0; i < mNumProperties; ++i) {
+ void *data = mValues[i].mData;
+ switch (mValues[i].mType) {
+ case AI_BOOL:
+ delete static_cast<bool *>(data);
+ break;
+ case AI_INT32:
+ delete static_cast<int32_t *>(data);
+ break;
+ case AI_UINT64:
+ delete static_cast<uint64_t *>(data);
+ break;
+ case AI_FLOAT:
+ delete static_cast<float *>(data);
+ break;
+ case AI_DOUBLE:
+ delete static_cast<double *>(data);
+ break;
+ case AI_AISTRING:
+ delete static_cast<aiString *>(data);
+ break;
+ case AI_AIVECTOR3D:
+ delete static_cast<aiVector3D *>(data);
+ break;
+ case AI_AIMETADATA:
+ delete static_cast<aiMetadata *>(data);
+ break;
+#ifndef SWIG
+ case FORCE_32BIT:
+#endif
+ default:
+ break;
+ }
+ }
+
+ // Delete the metadata array
+ delete[] mValues;
+ mValues = nullptr;
+ }
+ }
+
+ /**
+ * @brief Allocates property fields + keys.
+ * @param numProperties Number of requested properties.
+ */
+ static inline aiMetadata *Alloc(unsigned int numProperties) {
+ if (0 == numProperties) {
+ return nullptr;
+ }
+
+ aiMetadata *data = new aiMetadata;
+ data->mNumProperties = numProperties;
+ data->mKeys = new aiString[data->mNumProperties]();
+ data->mValues = new aiMetadataEntry[data->mNumProperties]();
+
+ return data;
+ }
+
+ /**
+ * @brief Deallocates property fields + keys.
+ */
+ static inline void Dealloc(aiMetadata *metadata) {
+ delete metadata;
+ }
+
+ template <typename T>
+ inline void Add(const std::string &key, const T &value) {
+ aiString *new_keys = new aiString[mNumProperties + 1];
+ aiMetadataEntry *new_values = new aiMetadataEntry[mNumProperties + 1];
+
+ for (unsigned int i = 0; i < mNumProperties; ++i) {
+ new_keys[i] = mKeys[i];
+ new_values[i] = mValues[i];
+ }
+
+ delete[] mKeys;
+ delete[] mValues;
+
+ mKeys = new_keys;
+ mValues = new_values;
+
+ mNumProperties++;
+
+ Set(mNumProperties - 1, key, value);
+ }
+
+ template <typename T>
+ inline bool Set(unsigned index, const std::string &key, const T &value) {
+ // In range assertion
+ if (index >= mNumProperties) {
+ return false;
+ }
+
+ // Ensure that we have a valid key.
+ if (key.empty()) {
+ return false;
+ }
+
+ // Set metadata key
+ mKeys[index] = key;
+
+ // Set metadata type
+ mValues[index].mType = GetAiType(value);
+
+ // Copy the given value to the dynamic storage
+ if (nullptr != mValues[index].mData && AI_AIMETADATA != mValues[index].mType) {
+ ::memcpy(mValues[index].mData, &value, sizeof(T));
+ } else if (nullptr != mValues[index].mData && AI_AIMETADATA == mValues[index].mType) {
+ *static_cast<T *>(mValues[index].mData) = value;
+ } else {
+ if (nullptr != mValues[index].mData) {
+ delete static_cast<T *>(mValues[index].mData);
+ mValues[index].mData = nullptr;
+ }
+ mValues[index].mData = new T(value);
+ }
+
+ return true;
+ }
+
+ template <typename T>
+ inline bool Set(const std::string &key, const T &value) {
+ if (key.empty()) {
+ return false;
+ }
+
+ bool result = false;
+ for (unsigned int i = 0; i < mNumProperties; ++i) {
+ if (key == mKeys[i].C_Str()) {
+ Set(i, key, value);
+ result = true;
+ break;
+ }
+ }
+
+ return result;
+ }
+
+ template <typename T>
+ inline bool Get(unsigned index, T &value) const {
+ // In range assertion
+ if (index >= mNumProperties) {
+ return false;
+ }
+
+ // Return false if the output data type does
+ // not match the found value's data type
+ if (GetAiType(value) != mValues[index].mType) {
+ return false;
+ }
+
+ // Otherwise, output the found value and
+ // return true
+ value = *static_cast<T *>(mValues[index].mData);
+
+ return true;
+ }
+
+ template <typename T>
+ inline bool Get(const aiString &key, T &value) const {
+ // Search for the given key
+ for (unsigned int i = 0; i < mNumProperties; ++i) {
+ if (mKeys[i] == key) {
+ return Get(i, value);
+ }
+ }
+ return false;
+ }
+
+ template <typename T>
+ inline bool Get(const std::string &key, T &value) const {
+ return Get(aiString(key), value);
+ }
+
+ /// Return metadata entry for analyzing it by user.
+ /// \param [in] pIndex - index of the entry.
+ /// \param [out] pKey - pointer to the key value.
+ /// \param [out] pEntry - pointer to the entry: type and value.
+ /// \return false - if pIndex is out of range, else - true.
+ inline bool Get(size_t index, const aiString *&key, const aiMetadataEntry *&entry) const {
+ if (index >= mNumProperties) {
+ return false;
+ }
+
+ key = &mKeys[index];
+ entry = &mValues[index];
+
+ return true;
+ }
+
+ /// Check whether there is a metadata entry for the given key.
+ /// \param [in] Key - the key value value to check for.
+ inline bool HasKey(const char *key) const {
+ if (nullptr == key) {
+ return false;
+ }
+
+ // Search for the given key
+ for (unsigned int i = 0; i < mNumProperties; ++i) {
+ if (0 == strncmp(mKeys[i].C_Str(), key, mKeys[i].length)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ friend bool CompareKeys(const aiMetadata &lhs, const aiMetadata &rhs) {
+ if (lhs.mNumProperties != rhs.mNumProperties) {
+ return false;
+ }
+
+ for (unsigned int i = 0; i < lhs.mNumProperties; ++i) {
+ if (lhs.mKeys[i] != rhs.mKeys[i]) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ friend bool CompareValues(const aiMetadata &lhs, const aiMetadata &rhs) {
+ if (lhs.mNumProperties != rhs.mNumProperties) {
+ return false;
+ }
+
+ for (unsigned int i = 0; i < lhs.mNumProperties; ++i) {
+ if (lhs.mValues[i].mType != rhs.mValues[i].mType) {
+ return false;
+ }
+
+ switch (lhs.mValues[i].mType) {
+ case AI_BOOL: {
+ if (*static_cast<bool *>(lhs.mValues[i].mData) != *static_cast<bool *>(rhs.mValues[i].mData)) {
+ return false;
+ }
+ } break;
+ case AI_INT32: {
+ if (*static_cast<int32_t *>(lhs.mValues[i].mData) != *static_cast<int32_t *>(rhs.mValues[i].mData)) {
+ return false;
+ }
+ } break;
+ case AI_UINT64: {
+ if (*static_cast<uint64_t *>(lhs.mValues[i].mData) != *static_cast<uint64_t *>(rhs.mValues[i].mData)) {
+ return false;
+ }
+ } break;
+ case AI_FLOAT: {
+ if (*static_cast<float *>(lhs.mValues[i].mData) != *static_cast<float *>(rhs.mValues[i].mData)) {
+ return false;
+ }
+ } break;
+ case AI_DOUBLE: {
+ if (*static_cast<double *>(lhs.mValues[i].mData) != *static_cast<double *>(rhs.mValues[i].mData)) {
+ return false;
+ }
+ } break;
+ case AI_AISTRING: {
+ if (*static_cast<aiString *>(lhs.mValues[i].mData) != *static_cast<aiString *>(rhs.mValues[i].mData)) {
+ return false;
+ }
+ } break;
+ case AI_AIVECTOR3D: {
+ if (*static_cast<aiVector3D *>(lhs.mValues[i].mData) != *static_cast<aiVector3D *>(rhs.mValues[i].mData)) {
+ return false;
+ }
+ } break;
+ case AI_AIMETADATA: {
+ if (*static_cast<aiMetadata *>(lhs.mValues[i].mData) != *static_cast<aiMetadata *>(rhs.mValues[i].mData)) {
+ return false;
+ }
+ } break;
+#ifndef SWIG
+ case FORCE_32BIT:
+#endif
+ default:
+ break;
+ }
+ }
+
+ return true;
+ }
+
+ friend bool operator==(const aiMetadata &lhs, const aiMetadata &rhs) {
+ return CompareKeys(lhs, rhs) && CompareValues(lhs, rhs);
+ }
+
+ friend bool operator!=(const aiMetadata &lhs, const aiMetadata &rhs) {
+ return !(lhs == rhs);
+ }
+
+#endif // __cplusplus
+};
+
+#endif // AI_METADATA_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/pbrmaterial.h b/src/mesh/assimp-master/include/assimp/pbrmaterial.h
new file mode 100644
index 0000000..06932ce
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/pbrmaterial.h
@@ -0,0 +1,89 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file pbrmaterial.h
+ * @brief Deprecated GLTF_PBR macros
+ */
+#pragma once
+#ifndef AI_PBRMATERIAL_H_INC
+#define AI_PBRMATERIAL_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+# warning pbrmaterial.h is deprecated. Please update to PBR materials in materials.h and glTF-specific items in GltfMaterial.h
+#else if defined(_MSC_VER)
+# pragma message("pbrmaterial.h is deprecated. Please update to PBR materials in materials.h and glTF-specific items in GltfMaterial.h")
+#endif
+
+#include <assimp/material.h>
+#include <assimp/GltfMaterial.h>
+
+#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_FACTOR AI_MATKEY_BASE_COLOR
+#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_BASE_COLOR_TEXTURE AI_MATKEY_BASE_COLOR_TEXTURE
+#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_METALLIC_FACTOR AI_MATKEY_METALLIC_FACTOR
+#define AI_MATKEY_GLTF_PBRMETALLICROUGHNESS_ROUGHNESS_FACTOR AI_MATKEY_ROUGHNESS_FACTOR
+
+//#define AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS "$mat.gltf.pbrSpecularGlossiness", 0, 0
+#define AI_MATKEY_GLTF_PBRSPECULARGLOSSINESS_GLOSSINESS_FACTOR AI_MATKEY_GLOSSINESS_FACTOR
+
+// Use AI_MATKEY_SHADING_MODEL == aiShadingMode_Unlit instead
+#define AI_MATKEY_GLTF_UNLIT "$mat.gltf.unlit", 0, 0
+
+//AI_MATKEY_GLTF_MATERIAL_SHEEN
+#define AI_MATKEY_GLTF_MATERIAL_SHEEN_COLOR_FACTOR AI_MATKEY_SHEEN_COLOR_FACTOR
+#define AI_MATKEY_GLTF_MATERIAL_SHEEN_ROUGHNESS_FACTOR AI_MATKEY_SHEEN_ROUGHNESS_FACTOR
+#define AI_MATKEY_GLTF_MATERIAL_SHEEN_COLOR_TEXTURE AI_MATKEY_SHEEN_COLOR_TEXTURE
+#define AI_MATKEY_GLTF_MATERIAL_SHEEN_ROUGHNESS_TEXTURE AI_MATKEY_SHEEN_ROUGHNESS_TEXTURE
+
+//AI_MATKEY_GLTF_MATERIAL_CLEARCOAT
+#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_FACTOR AI_MATKEY_CLEARCOAT_FACTOR
+#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_ROUGHNESS_FACTOR AI_MATKEY_CLEARCOAT_ROUGHNESS_FACTOR
+#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_TEXTURE AI_MATKEY_CLEARCOAT_TEXTURE
+#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_ROUGHNESS_TEXTURE AI_MATKEY_CLEARCOAT_ROUGHNESS_TEXTURE
+#define AI_MATKEY_GLTF_MATERIAL_CLEARCOAT_NORMAL_TEXTURE AI_MATKEY_CLEARCOAT_NORMAL_TEXTURE
+
+//AI_MATKEY_GLTF_MATERIAL_TRANSMISSION
+#define AI_MATKEY_GLTF_MATERIAL_TRANSMISSION_FACTOR AI_MATKEY_TRANSMISSION_FACTOR
+#define AI_MATKEY_GLTF_MATERIAL_TRANSMISSION_TEXTURE AI_MATKEY_TRANSMISSION_TEXTURE
+
+#define AI_MATKEY_GLTF_TEXTURE_TEXCOORD(type, N) AI_MATKEY_UVWSRC(type, N)
+
+#endif //!!AI_PBRMATERIAL_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/port/AndroidJNI/AndroidJNIIOSystem.h b/src/mesh/assimp-master/include/assimp/port/AndroidJNI/AndroidJNIIOSystem.h
new file mode 100644
index 0000000..29ad8e0
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/port/AndroidJNI/AndroidJNIIOSystem.h
@@ -0,0 +1,88 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2021, 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 Android implementation of IOSystem using the standard C file functions.
+ * Aimed to ease the access to android assets */
+
+#if __ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
+#ifndef AI_ANDROIDJNIIOSYSTEM_H_INC
+#define AI_ANDROIDJNIIOSYSTEM_H_INC
+
+#include <assimp/DefaultIOSystem.h>
+#include <android/asset_manager.h>
+#include <android/asset_manager_jni.h>
+#include <android/native_activity.h>
+
+namespace Assimp {
+
+// ---------------------------------------------------------------------------
+/** Android extension to DefaultIOSystem using the standard C file functions */
+class ASSIMP_API AndroidJNIIOSystem : public DefaultIOSystem {
+public:
+ /** Initialize android activity data */
+ std::string mApkWorkspacePath;
+ AAssetManager* mApkAssetManager;
+
+ /// Constructor.
+ AndroidJNIIOSystem(ANativeActivity* activity);
+
+ /// Class constructor with past and asset manager.
+ AndroidJNIIOSystem(const char *internalPath, AAssetManager* assetManager);
+
+ /// Destructor.
+ ~AndroidJNIIOSystem();
+
+ /// Tests for the existence of a file at the given path.
+ bool Exists( const char* pFile) const;
+
+ /// Opens a file at the given path, with given mode
+ IOStream* Open( const char* strFile, const char* strMode);
+
+ /// Inits Android extractor
+ void AndroidActivityInit(ANativeActivity* activity);
+
+ /// Extracts android asset
+ bool AndroidExtractAsset(std::string name);
+};
+
+} //!ns Assimp
+
+#endif //AI_ANDROIDJNIIOSYSTEM_H_INC
+#endif //__ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
diff --git a/src/mesh/assimp-master/include/assimp/port/AndroidJNI/BundledAssetIOSystem.h b/src/mesh/assimp-master/include/assimp/port/AndroidJNI/BundledAssetIOSystem.h
new file mode 100644
index 0000000..bc1ce78
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/port/AndroidJNI/BundledAssetIOSystem.h
@@ -0,0 +1,93 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2021, 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 Android implementation of IOSystem using the standard C file functions.
+ * Aimed to ease the access to android assets */
+
+#if __ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
+#ifndef AI_BUNDLEDASSETIOSYSTEM_H_INC
+#define AI_BUNDLEDASSETIOSYSTEM_H_INC
+
+#include <android/asset_manager_jni.h>
+
+#include <assimp/DefaultIOSystem.h>
+#include <assimp/IOStream.hpp>
+
+namespace Assimp {
+
+class BundledAssetIOSystem : public Assimp::DefaultIOSystem {
+
+public:
+ AAssetManager* mApkAssetManager;
+
+ BundledAssetIOSystem(JNIEnv* env, jobject assetManager) { mApkAssetManager = AAssetManager_fromJava(env, assetManager); }
+ ~BundledAssetIOSystem() {};
+
+ bool Exists( const char* pFile) const;
+
+ Assimp::IOStream* Open( const char* pFile, const char* pMode = "rb");
+
+ void Close( Assimp::IOStream* pFile);
+
+private:
+
+ class AssetIOStream : public Assimp::IOStream {
+ AAsset * asset;
+
+ public:
+ AssetIOStream(AAsset *asset) { this->asset = asset; };
+ ~AssetIOStream() { AAsset_close(asset); }
+
+ size_t Read(void* pvBuffer, size_t pSize, size_t pCount) { return AAsset_read(asset, pvBuffer, pSize * pCount);}
+ size_t Write(const void* pvBuffer, size_t pSize, size_t pCount) { return 0; };
+ aiReturn Seek(size_t pOffset, aiOrigin pOrigin) { return (AAsset_seek(asset, pOffset, pOrigin) >= 0 ? aiReturn_SUCCESS : aiReturn_FAILURE); }
+ size_t Tell() const { return(AAsset_getLength(asset) - AAsset_getRemainingLength(asset)); };
+ size_t FileSize() const { return AAsset_getLength(asset); }
+ void Flush() { }
+ };
+
+};
+
+
+} //!ns Assimp
+
+#endif //AI_BUNDLEDASSETIOSYSTEM_H_INC
+#endif //__ANDROID__ and __ANDROID_API__ > 9 and defined(AI_CONFIG_ANDROID_JNI_ASSIMP_MANAGER_SUPPORT)
+
diff --git a/src/mesh/assimp-master/include/assimp/postprocess.h b/src/mesh/assimp-master/include/assimp/postprocess.h
new file mode 100644
index 0000000..cdcbf05
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/postprocess.h
@@ -0,0 +1,708 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file postprocess.h
+ * @brief Definitions for import post processing steps
+ */
+#pragma once
+#ifndef AI_POSTPROCESS_H_INC
+#define AI_POSTPROCESS_H_INC
+
+#include <assimp/types.h>
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// -----------------------------------------------------------------------------------
+/** @enum aiPostProcessSteps
+ * @brief Defines the flags for all possible post processing steps.
+ *
+ * @note Some steps are influenced by properties set on the Assimp::Importer itself
+ *
+ * @see Assimp::Importer::ReadFile()
+ * @see Assimp::Importer::SetPropertyInteger()
+ * @see aiImportFile
+ * @see aiImportFileEx
+ */
+// -----------------------------------------------------------------------------------
+enum aiPostProcessSteps
+{
+
+ // -------------------------------------------------------------------------
+ /** <hr>Calculates the tangents and bitangents for the imported meshes.
+ *
+ * Does nothing if a mesh does not have normals. You might want this post
+ * processing step to be executed if you plan to use tangent space calculations
+ * such as normal mapping applied to the meshes. There's an importer property,
+ * <tt>#AI_CONFIG_PP_CT_MAX_SMOOTHING_ANGLE</tt>, which allows you to specify
+ * a maximum smoothing angle for the algorithm. However, usually you'll
+ * want to leave it at the default value.
+ */
+ aiProcess_CalcTangentSpace = 0x1,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Identifies and joins identical vertex data sets within all
+ * imported meshes.
+ *
+ * After this step is run, each mesh contains unique vertices,
+ * so a vertex may be used by multiple faces. You usually want
+ * to use this post processing step. If your application deals with
+ * indexed geometry, this step is compulsory or you'll just waste rendering
+ * time. <b>If this flag is not specified</b>, no vertices are referenced by
+ * more than one face and <b>no index buffer is required</b> for rendering.
+ */
+ aiProcess_JoinIdenticalVertices = 0x2,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Converts all the imported data to a left-handed coordinate space.
+ *
+ * By default the data is returned in a right-handed coordinate space (which
+ * OpenGL prefers). In this space, +X points to the right,
+ * +Z points towards the viewer, and +Y points upwards. In the DirectX
+ * coordinate space +X points to the right, +Y points upwards, and +Z points
+ * away from the viewer.
+ *
+ * You'll probably want to consider this flag if you use Direct3D for
+ * rendering. The #aiProcess_ConvertToLeftHanded flag supersedes this
+ * setting and bundles all conversions typically required for D3D-based
+ * applications.
+ */
+ aiProcess_MakeLeftHanded = 0x4,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Triangulates all faces of all meshes.
+ *
+ * By default the imported mesh data might contain faces with more than 3
+ * indices. For rendering you'll usually want all faces to be triangles.
+ * This post processing step splits up faces with more than 3 indices into
+ * triangles. Line and point primitives are *not* modified! If you want
+ * 'triangles only' with no other kinds of primitives, try the following
+ * solution:
+ * <ul>
+ * <li>Specify both #aiProcess_Triangulate and #aiProcess_SortByPType </li>
+ * <li>Ignore all point and line meshes when you process assimp's output</li>
+ * </ul>
+ */
+ aiProcess_Triangulate = 0x8,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Removes some parts of the data structure (animations, materials,
+ * light sources, cameras, textures, vertex components).
+ *
+ * The components to be removed are specified in a separate
+ * importer property, <tt>#AI_CONFIG_PP_RVC_FLAGS</tt>. This is quite useful
+ * if you don't need all parts of the output structure. Vertex colors
+ * are rarely used today for example... Calling this step to remove unneeded
+ * data from the pipeline as early as possible results in increased
+ * performance and a more optimized output data structure.
+ * This step is also useful if you want to force Assimp to recompute
+ * normals or tangents. The corresponding steps don't recompute them if
+ * they're already there (loaded from the source asset). By using this
+ * step you can make sure they are NOT there.
+ *
+ * This flag is a poor one, mainly because its purpose is usually
+ * misunderstood. Consider the following case: a 3D model has been exported
+ * from a CAD app, and it has per-face vertex colors. Vertex positions can't be
+ * shared, thus the #aiProcess_JoinIdenticalVertices step fails to
+ * optimize the data because of these nasty little vertex colors.
+ * Most apps don't even process them, so it's all for nothing. By using
+ * this step, unneeded components are excluded as early as possible
+ * thus opening more room for internal optimizations.
+ */
+ aiProcess_RemoveComponent = 0x10,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Generates normals for all faces of all meshes.
+ *
+ * This is ignored if normals are already there at the time this flag
+ * is evaluated. Model importers try to load them from the source file, so
+ * they're usually already there. Face normals are shared between all points
+ * of a single face, so a single point can have multiple normals, which
+ * forces the library to duplicate vertices in some cases.
+ * #aiProcess_JoinIdenticalVertices is *senseless* then.
+ *
+ * This flag may not be specified together with #aiProcess_GenSmoothNormals.
+ */
+ aiProcess_GenNormals = 0x20,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Generates smooth normals for all vertices in the mesh.
+ *
+ * This is ignored if normals are already there at the time this flag
+ * is evaluated. Model importers try to load them from the source file, so
+ * they're usually already there.
+ *
+ * This flag may not be specified together with
+ * #aiProcess_GenNormals. There's a importer property,
+ * <tt>#AI_CONFIG_PP_GSN_MAX_SMOOTHING_ANGLE</tt> which allows you to specify
+ * an angle maximum for the normal smoothing algorithm. Normals exceeding
+ * this limit are not smoothed, resulting in a 'hard' seam between two faces.
+ * Using a decent angle here (e.g. 80 degrees) results in very good visual
+ * appearance.
+ */
+ aiProcess_GenSmoothNormals = 0x40,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Splits large meshes into smaller sub-meshes.
+ *
+ * This is quite useful for real-time rendering, where the number of triangles
+ * which can be maximally processed in a single draw-call is limited
+ * by the video driver/hardware. The maximum vertex buffer is usually limited
+ * too. Both requirements can be met with this step: you may specify both a
+ * triangle and vertex limit for a single mesh.
+ *
+ * The split limits can (and should!) be set through the
+ * <tt>#AI_CONFIG_PP_SLM_VERTEX_LIMIT</tt> and <tt>#AI_CONFIG_PP_SLM_TRIANGLE_LIMIT</tt>
+ * importer properties. The default values are <tt>#AI_SLM_DEFAULT_MAX_VERTICES</tt> and
+ * <tt>#AI_SLM_DEFAULT_MAX_TRIANGLES</tt>.
+ *
+ * Note that splitting is generally a time-consuming task, but only if there's
+ * something to split. The use of this step is recommended for most users.
+ */
+ aiProcess_SplitLargeMeshes = 0x80,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Removes the node graph and pre-transforms all vertices with
+ * the local transformation matrices of their nodes.
+ *
+ * If the resulting scene can be reduced to a single mesh, with a single
+ * material, no lights, and no cameras, then the output scene will contain
+ * only a root node (with no children) that references the single mesh.
+ * Otherwise, the output scene will be reduced to a root node with a single
+ * level of child nodes, each one referencing one mesh, and each mesh
+ * referencing one material.
+ *
+ * In either case, for rendering, you can
+ * simply render all meshes in order - you don't need to pay
+ * attention to local transformations and the node hierarchy.
+ * Animations are removed during this step.
+ * This step is intended for applications without a scenegraph.
+ * The step CAN cause some problems: if e.g. a mesh of the asset
+ * contains normals and another, using the same material index, does not,
+ * they will be brought together, but the first meshes's part of
+ * the normal list is zeroed. However, these artifacts are rare.
+ * @note The <tt>#AI_CONFIG_PP_PTV_NORMALIZE</tt> configuration property
+ * can be set to normalize the scene's spatial dimension to the -1...1
+ * range.
+ */
+ aiProcess_PreTransformVertices = 0x100,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Limits the number of bones simultaneously affecting a single vertex
+ * to a maximum value.
+ *
+ * If any vertex is affected by more than the maximum number of bones, the least
+ * important vertex weights are removed and the remaining vertex weights are
+ * renormalized so that the weights still sum up to 1.
+ * The default bone weight limit is 4 (defined as <tt>#AI_LMW_MAX_WEIGHTS</tt> in
+ * config.h), but you can use the <tt>#AI_CONFIG_PP_LBW_MAX_WEIGHTS</tt> importer
+ * property to supply your own limit to the post processing step.
+ *
+ * If you intend to perform the skinning in hardware, this post processing
+ * step might be of interest to you.
+ */
+ aiProcess_LimitBoneWeights = 0x200,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Validates the imported scene data structure.
+ * This makes sure that all indices are valid, all animations and
+ * bones are linked correctly, all material references are correct .. etc.
+ *
+ * It is recommended that you capture Assimp's log output if you use this flag,
+ * so you can easily find out what's wrong if a file fails the
+ * validation. The validator is quite strict and will find *all*
+ * inconsistencies in the data structure... It is recommended that plugin
+ * developers use it to debug their loaders. There are two types of
+ * validation failures:
+ * <ul>
+ * <li>Error: There's something wrong with the imported data. Further
+ * postprocessing is not possible and the data is not usable at all.
+ * The import fails. #Importer::GetErrorString() or #aiGetErrorString()
+ * carry the error message around.</li>
+ * <li>Warning: There are some minor issues (e.g. 1000000 animation
+ * keyframes with the same time), but further postprocessing and use
+ * of the data structure is still safe. Warning details are written
+ * to the log file, <tt>#AI_SCENE_FLAGS_VALIDATION_WARNING</tt> is set
+ * in #aiScene::mFlags</li>
+ * </ul>
+ *
+ * This post-processing step is not time-consuming. Its use is not
+ * compulsory, but recommended.
+ */
+ aiProcess_ValidateDataStructure = 0x400,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Reorders triangles for better vertex cache locality.
+ *
+ * The step tries to improve the ACMR (average post-transform vertex cache
+ * miss ratio) for all meshes. The implementation runs in O(n) and is
+ * roughly based on the 'tipsify' algorithm (see <a href="
+ * http://www.cs.princeton.edu/gfx/pubs/Sander_2007_%3ETR/tipsy.pdf">this
+ * paper</a>).
+ *
+ * If you intend to render huge models in hardware, this step might
+ * be of interest to you. The <tt>#AI_CONFIG_PP_ICL_PTCACHE_SIZE</tt>
+ * importer property can be used to fine-tune the cache optimization.
+ */
+ aiProcess_ImproveCacheLocality = 0x800,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Searches for redundant/unreferenced materials and removes them.
+ *
+ * This is especially useful in combination with the
+ * #aiProcess_PreTransformVertices and #aiProcess_OptimizeMeshes flags.
+ * Both join small meshes with equal characteristics, but they can't do
+ * their work if two meshes have different materials. Because several
+ * material settings are lost during Assimp's import filters,
+ * (and because many exporters don't check for redundant materials), huge
+ * models often have materials which are are defined several times with
+ * exactly the same settings.
+ *
+ * Several material settings not contributing to the final appearance of
+ * a surface are ignored in all comparisons (e.g. the material name).
+ * So, if you're passing additional information through the
+ * content pipeline (probably using *magic* material names), don't
+ * specify this flag. Alternatively take a look at the
+ * <tt>#AI_CONFIG_PP_RRM_EXCLUDE_LIST</tt> importer property.
+ */
+ aiProcess_RemoveRedundantMaterials = 0x1000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>This step tries to determine which meshes have normal vectors
+ * that are facing inwards and inverts them.
+ *
+ * The algorithm is simple but effective:
+ * the bounding box of all vertices + their normals is compared against
+ * the volume of the bounding box of all vertices without their normals.
+ * This works well for most objects, problems might occur with planar
+ * surfaces. However, the step tries to filter such cases.
+ * The step inverts all in-facing normals. Generally it is recommended
+ * to enable this step, although the result is not always correct.
+ */
+ aiProcess_FixInfacingNormals = 0x2000,
+
+
+
+ // -------------------------------------------------------------------------
+ /**
+ * This step generically populates aiBone->mArmature and aiBone->mNode generically
+ * The point of these is it saves you later having to calculate these elements
+ * This is useful when handling rest information or skin information
+ * If you have multiple armatures on your models we strongly recommend enabling this
+ * Instead of writing your own multi-root, multi-armature lookups we have done the
+ * hard work for you :)
+ */
+ aiProcess_PopulateArmatureData = 0x4000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>This step splits meshes with more than one primitive type in
+ * homogeneous sub-meshes.
+ *
+ * The step is executed after the triangulation step. After the step
+ * returns, just one bit is set in aiMesh::mPrimitiveTypes. This is
+ * especially useful for real-time rendering where point and line
+ * primitives are often ignored or rendered separately.
+ * You can use the <tt>#AI_CONFIG_PP_SBP_REMOVE</tt> importer property to
+ * specify which primitive types you need. This can be used to easily
+ * exclude lines and points, which are rarely used, from the import.
+ */
+ aiProcess_SortByPType = 0x8000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>This step searches all meshes for degenerate primitives and
+ * converts them to proper lines or points.
+ *
+ * A face is 'degenerate' if one or more of its points are identical.
+ * To have the degenerate stuff not only detected and collapsed but
+ * removed, try one of the following procedures:
+ * <br><b>1.</b> (if you support lines and points for rendering but don't
+ * want the degenerates)<br>
+ * <ul>
+ * <li>Specify the #aiProcess_FindDegenerates flag.
+ * </li>
+ * <li>Set the <tt>#AI_CONFIG_PP_FD_REMOVE</tt> importer property to
+ * 1. This will cause the step to remove degenerate triangles from the
+ * import as soon as they're detected. They won't pass any further
+ * pipeline steps.
+ * </li>
+ * </ul>
+ * <br><b>2.</b>(if you don't support lines and points at all)<br>
+ * <ul>
+ * <li>Specify the #aiProcess_FindDegenerates flag.
+ * </li>
+ * <li>Specify the #aiProcess_SortByPType flag. This moves line and
+ * point primitives to separate meshes.
+ * </li>
+ * <li>Set the <tt>#AI_CONFIG_PP_SBP_REMOVE</tt> importer property to
+ * @code aiPrimitiveType_POINTS | aiPrimitiveType_LINES
+ * @endcode to cause SortByPType to reject point
+ * and line meshes from the scene.
+ * </li>
+ * </ul>
+ *
+ * This step also removes very small triangles with a surface area smaller
+ * than 10^-6. If you rely on having these small triangles, or notice holes
+ * in your model, set the property <tt>#AI_CONFIG_PP_FD_CHECKAREA</tt> to
+ * false.
+ * @note Degenerate polygons are not necessarily evil and that's why
+ * they're not removed by default. There are several file formats which
+ * don't support lines or points, and some exporters bypass the
+ * format specification and write them as degenerate triangles instead.
+ */
+ aiProcess_FindDegenerates = 0x10000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>This step searches all meshes for invalid data, such as zeroed
+ * normal vectors or invalid UV coords and removes/fixes them. This is
+ * intended to get rid of some common exporter errors.
+ *
+ * This is especially useful for normals. If they are invalid, and
+ * the step recognizes this, they will be removed and can later
+ * be recomputed, i.e. by the #aiProcess_GenSmoothNormals flag.<br>
+ * The step will also remove meshes that are infinitely small and reduce
+ * animation tracks consisting of hundreds if redundant keys to a single
+ * key. The <tt>AI_CONFIG_PP_FID_ANIM_ACCURACY</tt> config property decides
+ * the accuracy of the check for duplicate animation tracks.
+ */
+ aiProcess_FindInvalidData = 0x20000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>This step converts non-UV mappings (such as spherical or
+ * cylindrical mapping) to proper texture coordinate channels.
+ *
+ * Most applications will support UV mapping only, so you will
+ * probably want to specify this step in every case. Note that Assimp is not
+ * always able to match the original mapping implementation of the
+ * 3D app which produced a model perfectly. It's always better to let the
+ * modelling app compute the UV channels - 3ds max, Maya, Blender,
+ * LightWave, and Modo do this for example.
+ *
+ * @note If this step is not requested, you'll need to process the
+ * <tt>#AI_MATKEY_MAPPING</tt> material property in order to display all assets
+ * properly.
+ */
+ aiProcess_GenUVCoords = 0x40000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>This step applies per-texture UV transformations and bakes
+ * them into stand-alone vtexture coordinate channels.
+ *
+ * UV transformations are specified per-texture - see the
+ * <tt>#AI_MATKEY_UVTRANSFORM</tt> material key for more information.
+ * This step processes all textures with
+ * transformed input UV coordinates and generates a new (pre-transformed) UV channel
+ * which replaces the old channel. Most applications won't support UV
+ * transformations, so you will probably want to specify this step.
+ *
+ * @note UV transformations are usually implemented in real-time apps by
+ * transforming texture coordinates at vertex shader stage with a 3x3
+ * (homogeneous) transformation matrix.
+ */
+ aiProcess_TransformUVCoords = 0x80000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>This step searches for duplicate meshes and replaces them
+ * with references to the first mesh.
+ *
+ * This step takes a while, so don't use it if speed is a concern.
+ * Its main purpose is to workaround the fact that many export
+ * file formats don't support instanced meshes, so exporters need to
+ * duplicate meshes. This step removes the duplicates again. Please
+ * note that Assimp does not currently support per-node material
+ * assignment to meshes, which means that identical meshes with
+ * different materials are currently *not* joined, although this is
+ * planned for future versions.
+ */
+ aiProcess_FindInstances = 0x100000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>A post-processing step to reduce the number of meshes.
+ *
+ * This will, in fact, reduce the number of draw calls.
+ *
+ * This is a very effective optimization and is recommended to be used
+ * together with #aiProcess_OptimizeGraph, if possible. The flag is fully
+ * compatible with both #aiProcess_SplitLargeMeshes and #aiProcess_SortByPType.
+ */
+ aiProcess_OptimizeMeshes = 0x200000,
+
+
+ // -------------------------------------------------------------------------
+ /** <hr>A post-processing step to optimize the scene hierarchy.
+ *
+ * Nodes without animations, bones, lights or cameras assigned are
+ * collapsed and joined.
+ *
+ * Node names can be lost during this step. If you use special 'tag nodes'
+ * to pass additional information through your content pipeline, use the
+ * <tt>#AI_CONFIG_PP_OG_EXCLUDE_LIST</tt> importer property to specify a
+ * list of node names you want to be kept. Nodes matching one of the names
+ * in this list won't be touched or modified.
+ *
+ * Use this flag with caution. Most simple files will be collapsed to a
+ * single node, so complex hierarchies are usually completely lost. This is not
+ * useful for editor environments, but probably a very effective
+ * optimization if you just want to get the model data, convert it to your
+ * own format, and render it as fast as possible.
+ *
+ * This flag is designed to be used with #aiProcess_OptimizeMeshes for best
+ * results.
+ *
+ * @note 'Crappy' scenes with thousands of extremely small meshes packed
+ * in deeply nested nodes exist for almost all file formats.
+ * #aiProcess_OptimizeMeshes in combination with #aiProcess_OptimizeGraph
+ * usually fixes them all and makes them renderable.
+ */
+ aiProcess_OptimizeGraph = 0x400000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>This step flips all UV coordinates along the y-axis and adjusts
+ * material settings and bitangents accordingly.
+ *
+ * <b>Output UV coordinate system:</b>
+ * @code
+ * 0y|0y ---------- 1x|0y
+ * | |
+ * | |
+ * | |
+ * 0x|1y ---------- 1x|1y
+ * @endcode
+ *
+ * You'll probably want to consider this flag if you use Direct3D for
+ * rendering. The #aiProcess_ConvertToLeftHanded flag supersedes this
+ * setting and bundles all conversions typically required for D3D-based
+ * applications.
+ */
+ aiProcess_FlipUVs = 0x800000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>This step adjusts the output face winding order to be CW.
+ *
+ * The default face winding order is counter clockwise (CCW).
+ *
+ * <b>Output face order:</b>
+ * @code
+ * x2
+ *
+ * x0
+ * x1
+ * @endcode
+ */
+ aiProcess_FlipWindingOrder = 0x1000000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>This step splits meshes with many bones into sub-meshes so that each
+ * sub-mesh has fewer or as many bones as a given limit.
+ */
+ aiProcess_SplitByBoneCount = 0x2000000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>This step removes bones losslessly or according to some threshold.
+ *
+ * In some cases (i.e. formats that require it) exporters are forced to
+ * assign dummy bone weights to otherwise static meshes assigned to
+ * animated meshes. Full, weight-based skinning is expensive while
+ * animating nodes is extremely cheap, so this step is offered to clean up
+ * the data in that regard.
+ *
+ * Use <tt>#AI_CONFIG_PP_DB_THRESHOLD</tt> to control this.
+ * Use <tt>#AI_CONFIG_PP_DB_ALL_OR_NONE</tt> if you want bones removed if and
+ * only if all bones within the scene qualify for removal.
+ */
+ aiProcess_Debone = 0x4000000,
+
+
+
+ // -------------------------------------------------------------------------
+ /** <hr>This step will perform a global scale of the model.
+ *
+ * Some importers are providing a mechanism to define a scaling unit for the
+ * model. This post processing step can be used to do so. You need to get the
+ * global scaling from your importer settings like in FBX. Use the flag
+ * AI_CONFIG_GLOBAL_SCALE_FACTOR_KEY from the global property table to configure this.
+ *
+ * Use <tt>#AI_CONFIG_GLOBAL_SCALE_FACTOR_KEY</tt> to setup the global scaling factor.
+ */
+ aiProcess_GlobalScale = 0x8000000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>A postprocessing step to embed of textures.
+ *
+ * This will remove external data dependencies for textures.
+ * If a texture's file does not exist at the specified path
+ * (due, for instance, to an absolute path generated on another system),
+ * it will check if a file with the same name exists at the root folder
+ * of the imported model. And if so, it uses that.
+ */
+ aiProcess_EmbedTextures = 0x10000000,
+
+ // aiProcess_GenEntityMeshes = 0x100000,
+ // aiProcess_OptimizeAnimations = 0x200000
+ // aiProcess_FixTexturePaths = 0x200000
+
+
+ aiProcess_ForceGenNormals = 0x20000000,
+
+ // -------------------------------------------------------------------------
+ /** <hr>Drops normals for all faces of all meshes.
+ *
+ * This is ignored if no normals are present.
+ * Face normals are shared between all points of a single face,
+ * so a single point can have multiple normals, which
+ * forces the library to duplicate vertices in some cases.
+ * #aiProcess_JoinIdenticalVertices is *senseless* then.
+ * This process gives sense back to aiProcess_JoinIdenticalVertices
+ */
+ aiProcess_DropNormals = 0x40000000,
+
+ // -------------------------------------------------------------------------
+ /**
+ */
+ aiProcess_GenBoundingBoxes = 0x80000000
+};
+
+
+// ---------------------------------------------------------------------------------------
+/** @def aiProcess_ConvertToLeftHanded
+ * @brief Shortcut flag for Direct3D-based applications.
+ *
+ * Supersedes the #aiProcess_MakeLeftHanded and #aiProcess_FlipUVs and
+ * #aiProcess_FlipWindingOrder flags.
+ * The output data matches Direct3D's conventions: left-handed geometry, upper-left
+ * origin for UV coordinates and finally clockwise face order, suitable for CCW culling.
+ *
+ * @deprecated
+ */
+#define aiProcess_ConvertToLeftHanded ( \
+ aiProcess_MakeLeftHanded | \
+ aiProcess_FlipUVs | \
+ aiProcess_FlipWindingOrder | \
+ 0 )
+
+
+// ---------------------------------------------------------------------------------------
+/** @def aiProcessPreset_TargetRealtime_Fast
+ * @brief Default postprocess configuration optimizing the data for real-time rendering.
+ *
+ * Applications would want to use this preset to load models on end-user PCs,
+ * maybe for direct use in game.
+ *
+ * If you're using DirectX, don't forget to combine this value with
+ * the #aiProcess_ConvertToLeftHanded step. If you don't support UV transformations
+ * in your application apply the #aiProcess_TransformUVCoords step, too.
+ * @note Please take the time to read the docs for the steps enabled by this preset.
+ * Some of them offer further configurable properties, while some of them might not be of
+ * use for you so it might be better to not specify them.
+ */
+#define aiProcessPreset_TargetRealtime_Fast ( \
+ aiProcess_CalcTangentSpace | \
+ aiProcess_GenNormals | \
+ aiProcess_JoinIdenticalVertices | \
+ aiProcess_Triangulate | \
+ aiProcess_GenUVCoords | \
+ aiProcess_SortByPType | \
+ 0 )
+
+ // ---------------------------------------------------------------------------------------
+ /** @def aiProcessPreset_TargetRealtime_Quality
+ * @brief Default postprocess configuration optimizing the data for real-time rendering.
+ *
+ * Unlike #aiProcessPreset_TargetRealtime_Fast, this configuration
+ * performs some extra optimizations to improve rendering speed and
+ * to minimize memory usage. It could be a good choice for a level editor
+ * environment where import speed is not so important.
+ *
+ * If you're using DirectX, don't forget to combine this value with
+ * the #aiProcess_ConvertToLeftHanded step. If you don't support UV transformations
+ * in your application apply the #aiProcess_TransformUVCoords step, too.
+ * @note Please take the time to read the docs for the steps enabled by this preset.
+ * Some of them offer further configurable properties, while some of them might not be
+ * of use for you so it might be better to not specify them.
+ */
+#define aiProcessPreset_TargetRealtime_Quality ( \
+ aiProcess_CalcTangentSpace | \
+ aiProcess_GenSmoothNormals | \
+ aiProcess_JoinIdenticalVertices | \
+ aiProcess_ImproveCacheLocality | \
+ aiProcess_LimitBoneWeights | \
+ aiProcess_RemoveRedundantMaterials | \
+ aiProcess_SplitLargeMeshes | \
+ aiProcess_Triangulate | \
+ aiProcess_GenUVCoords | \
+ aiProcess_SortByPType | \
+ aiProcess_FindDegenerates | \
+ aiProcess_FindInvalidData | \
+ 0 )
+
+ // ---------------------------------------------------------------------------------------
+ /** @def aiProcessPreset_TargetRealtime_MaxQuality
+ * @brief Default postprocess configuration optimizing the data for real-time rendering.
+ *
+ * This preset enables almost every optimization step to achieve perfectly
+ * optimized data. It's your choice for level editor environments where import speed
+ * is not important.
+ *
+ * If you're using DirectX, don't forget to combine this value with
+ * the #aiProcess_ConvertToLeftHanded step. If you don't support UV transformations
+ * in your application, apply the #aiProcess_TransformUVCoords step, too.
+ * @note Please take the time to read the docs for the steps enabled by this preset.
+ * Some of them offer further configurable properties, while some of them might not be
+ * of use for you so it might be better to not specify them.
+ */
+#define aiProcessPreset_TargetRealtime_MaxQuality ( \
+ aiProcessPreset_TargetRealtime_Quality | \
+ aiProcess_FindInstances | \
+ aiProcess_ValidateDataStructure | \
+ aiProcess_OptimizeMeshes | \
+ 0 )
+
+
+#ifdef __cplusplus
+} // end of extern "C"
+#endif
+
+#endif // AI_POSTPROCESS_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/qnan.h b/src/mesh/assimp-master/include/assimp/qnan.h
new file mode 100644
index 0000000..c64caba
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/qnan.h
@@ -0,0 +1,162 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file qnan.h
+ * @brief Some utilities for our dealings with qnans.
+ *
+ * @note Some loaders use qnans to mark invalid values tempoarily, also
+ * Assimp explicitly enforces undefined normals to be set to qnan.
+ * qnan utilities are available in standard libraries (C99 for example)
+ * but last time I checked compiler coverage was so bad that I decided
+ * to reinvent the wheel.
+ */
+#pragma once
+#ifndef AI_QNAN_H_INCLUDED
+#define AI_QNAN_H_INCLUDED
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/defs.h>
+
+#include <limits>
+#include <stdint.h>
+
+// ---------------------------------------------------------------------------
+/** Data structure to represent the bit pattern of a 32 Bit
+ * IEEE 754 floating-point number. */
+union _IEEESingle {
+ float Float;
+ struct
+ {
+ uint32_t Frac : 23;
+ uint32_t Exp : 8;
+ uint32_t Sign : 1;
+ } IEEE;
+};
+
+// ---------------------------------------------------------------------------
+/** Data structure to represent the bit pattern of a 64 Bit
+ * IEEE 754 floating-point number. */
+union _IEEEDouble {
+ double Double;
+ struct
+ {
+ uint64_t Frac : 52;
+ uint64_t Exp : 11;
+ uint64_t Sign : 1;
+ } IEEE;
+};
+
+// ---------------------------------------------------------------------------
+/** Check whether a given float is qNaN.
+ * @param in Input value */
+AI_FORCE_INLINE bool is_qnan(float in) {
+ // the straightforward solution does not work:
+ // return (in != in);
+ // compiler generates code like this
+ // load <in> to <register-with-different-width>
+ // compare <register-with-different-width> against <in>
+
+ // FIXME: Use <float> stuff instead? I think fpclassify needs C99
+ _IEEESingle temp;
+ memcpy(&temp, &in, sizeof(float));
+ return (temp.IEEE.Exp == (1u << 8)-1 &&
+ temp.IEEE.Frac);
+}
+
+// ---------------------------------------------------------------------------
+/** Check whether a given double is qNaN.
+ * @param in Input value */
+AI_FORCE_INLINE bool is_qnan(double in) {
+ // the straightforward solution does not work:
+ // return (in != in);
+ // compiler generates code like this
+ // load <in> to <register-with-different-width>
+ // compare <register-with-different-width> against <in>
+
+ // FIXME: Use <float> stuff instead? I think fpclassify needs C99
+ _IEEEDouble temp;
+ memcpy(&temp, &in, sizeof(in));
+ return (temp.IEEE.Exp == (1u << 11)-1 &&
+ temp.IEEE.Frac);
+}
+
+// ---------------------------------------------------------------------------
+/** @brief check whether a float is either NaN or (+/-) INF.
+ *
+ * Denorms return false, they're treated like normal values.
+ * @param in Input value */
+AI_FORCE_INLINE bool is_special_float(float in) {
+ _IEEESingle temp;
+ memcpy(&temp, &in, sizeof(float));
+ return (temp.IEEE.Exp == (1u << 8)-1);
+}
+
+// ---------------------------------------------------------------------------
+/** @brief check whether a double is either NaN or (+/-) INF.
+ *
+ * Denorms return false, they're treated like normal values.
+ * @param in Input value */
+AI_FORCE_INLINE bool is_special_float(double in) {
+ _IEEESingle temp;
+ memcpy(&temp, &in, sizeof(float));
+ return (temp.IEEE.Exp == (1u << 11)-1);
+}
+
+// ---------------------------------------------------------------------------
+/** Check whether a float is NOT qNaN.
+ * @param in Input value */
+template<class TReal>
+AI_FORCE_INLINE bool is_not_qnan(TReal in) {
+ return !is_qnan(in);
+}
+
+// ---------------------------------------------------------------------------
+/** @brief Get a fresh qnan. */
+AI_FORCE_INLINE ai_real get_qnan() {
+ return std::numeric_limits<ai_real>::quiet_NaN();
+}
+
+#endif // !! AI_QNAN_H_INCLUDED
diff --git a/src/mesh/assimp-master/include/assimp/quaternion.h b/src/mesh/assimp-master/include/assimp/quaternion.h
new file mode 100644
index 0000000..b6d0a56
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/quaternion.h
@@ -0,0 +1,138 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the
+following conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file quaternion.h
+ * @brief Quaternion structure, including operators when compiling in C++
+ */
+#pragma once
+#ifndef AI_QUATERNION_H_INC
+#define AI_QUATERNION_H_INC
+
+#ifdef __cplusplus
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/defs.h>
+
+template <typename TReal> class aiVector3t;
+template <typename TReal> class aiMatrix3x3t;
+template <typename TReal> class aiMatrix4x4t;
+
+// ---------------------------------------------------------------------------
+/** Represents a quaternion in a 4D vector. */
+template <typename TReal>
+class aiQuaterniont
+{
+public:
+ aiQuaterniont() AI_NO_EXCEPT : w(1.0), x(), y(), z() {}
+ aiQuaterniont(TReal pw, TReal px, TReal py, TReal pz)
+ : w(pw), x(px), y(py), z(pz) {}
+
+ /** Construct from rotation matrix. Result is undefined if the matrix is not orthonormal. */
+ explicit aiQuaterniont( const aiMatrix3x3t<TReal>& pRotMatrix);
+
+ /** Construct from euler angles */
+ aiQuaterniont( TReal roty, TReal rotz, TReal rotx);
+
+ /** Construct from an axis-angle pair */
+ aiQuaterniont( aiVector3t<TReal> axis, TReal angle);
+
+ /** Construct from a normalized quaternion stored in a vec3 */
+ explicit aiQuaterniont( aiVector3t<TReal> normalized);
+
+ /** Returns a matrix representation of the quaternion */
+ aiMatrix3x3t<TReal> GetMatrix() const;
+
+public:
+
+ bool operator== (const aiQuaterniont& o) const;
+ bool operator!= (const aiQuaterniont& o) const;
+
+ // transform vector by matrix
+ aiQuaterniont& operator *= (const aiMatrix4x4t<TReal>& mat);
+
+ bool Equal(const aiQuaterniont &o, TReal epsilon = ai_epsilon) const;
+
+public:
+
+ /** Normalize the quaternion */
+ aiQuaterniont& Normalize();
+
+ /** Compute quaternion conjugate */
+ aiQuaterniont& Conjugate ();
+
+ /** Rotate a point by this quaternion */
+ aiVector3t<TReal> Rotate (const aiVector3t<TReal>& in) const;
+
+ /** Multiply two quaternions */
+ aiQuaterniont operator* (const aiQuaterniont& two) const;
+
+public:
+
+ /** Performs a spherical interpolation between two quaternions and writes the result into the third.
+ * @param pOut Target object to received the interpolated rotation.
+ * @param pStart Start rotation of the interpolation at factor == 0.
+ * @param pEnd End rotation, factor == 1.
+ * @param pFactor Interpolation factor between 0 and 1. Values outside of this range yield undefined results.
+ */
+ static void Interpolate( aiQuaterniont& pOut, const aiQuaterniont& pStart,
+ const aiQuaterniont& pEnd, TReal pFactor);
+
+public:
+
+ //! w,x,y,z components of the quaternion
+ TReal w, x, y, z;
+} ;
+
+typedef aiQuaterniont<ai_real> aiQuaternion;
+
+#else
+
+struct aiQuaternion {
+ ai_real w, x, y, z;
+};
+
+#endif
+
+#endif // AI_QUATERNION_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/quaternion.inl b/src/mesh/assimp-master/include/assimp/quaternion.inl
new file mode 100644
index 0000000..960e91a
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/quaternion.inl
@@ -0,0 +1,310 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file quaternion.inl
+ * @brief Inline implementation of aiQuaterniont<TReal> operators
+ */
+#pragma once
+#ifndef AI_QUATERNION_INL_INC
+#define AI_QUATERNION_INL_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#ifdef __cplusplus
+#include <assimp/quaternion.h>
+
+#include <cmath>
+
+// ------------------------------------------------------------------------------------------------
+/** Transformation of a quaternion by a 4x4 matrix */
+template <typename TReal>
+AI_FORCE_INLINE
+aiQuaterniont<TReal> operator * (const aiMatrix4x4t<TReal>& pMatrix, const aiQuaterniont<TReal>& pQuaternion) {
+ aiQuaterniont<TReal> res;
+ res.x = pMatrix.a1 * pQuaternion.x + pMatrix.a2 * pQuaternion.y + pMatrix.a3 * pQuaternion.z + pMatrix.a4 * pQuaternion.w;
+ res.y = pMatrix.b1 * pQuaternion.x + pMatrix.b2 * pQuaternion.y + pMatrix.b3 * pQuaternion.z + pMatrix.b4 * pQuaternion.w;
+ res.z = pMatrix.c1 * pQuaternion.x + pMatrix.c2 * pQuaternion.y + pMatrix.c3 * pQuaternion.z + pMatrix.c4 * pQuaternion.w;
+ res.w = pMatrix.d1 * pQuaternion.x + pMatrix.d2 * pQuaternion.y + pMatrix.d3 * pQuaternion.z + pMatrix.d4 * pQuaternion.w;
+ return res;
+}
+// ---------------------------------------------------------------------------
+template<typename TReal>
+bool aiQuaterniont<TReal>::operator== (const aiQuaterniont& o) const
+{
+ return x == o.x && y == o.y && z == o.z && w == o.w;
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+bool aiQuaterniont<TReal>::operator!= (const aiQuaterniont& o) const
+{
+ return !(*this == o);
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE
+aiQuaterniont<TReal>& aiQuaterniont<TReal>::operator *= (const aiMatrix4x4t<TReal>& mat){
+ return (*this = mat * (*this));
+}
+// ------------------------------------------------------------------------------------------------
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline bool aiQuaterniont<TReal>::Equal(const aiQuaterniont& o, TReal epsilon) const {
+ return
+ std::abs(x - o.x) <= epsilon &&
+ std::abs(y - o.y) <= epsilon &&
+ std::abs(z - o.z) <= epsilon &&
+ std::abs(w - o.w) <= epsilon;
+}
+
+// ---------------------------------------------------------------------------
+// Constructs a quaternion from a rotation matrix
+template<typename TReal>
+inline aiQuaterniont<TReal>::aiQuaterniont( const aiMatrix3x3t<TReal> &pRotMatrix)
+{
+ TReal t = pRotMatrix.a1 + pRotMatrix.b2 + pRotMatrix.c3;
+
+ // large enough
+ if( t > static_cast<TReal>(0))
+ {
+ TReal s = std::sqrt(1 + t) * static_cast<TReal>(2.0);
+ x = (pRotMatrix.c2 - pRotMatrix.b3) / s;
+ y = (pRotMatrix.a3 - pRotMatrix.c1) / s;
+ z = (pRotMatrix.b1 - pRotMatrix.a2) / s;
+ w = static_cast<TReal>(0.25) * s;
+ } // else we have to check several cases
+ else if( pRotMatrix.a1 > pRotMatrix.b2 && pRotMatrix.a1 > pRotMatrix.c3 )
+ {
+ // Column 0:
+ TReal s = std::sqrt( static_cast<TReal>(1.0) + pRotMatrix.a1 - pRotMatrix.b2 - pRotMatrix.c3) * static_cast<TReal>(2.0);
+ x = static_cast<TReal>(0.25) * s;
+ y = (pRotMatrix.b1 + pRotMatrix.a2) / s;
+ z = (pRotMatrix.a3 + pRotMatrix.c1) / s;
+ w = (pRotMatrix.c2 - pRotMatrix.b3) / s;
+ }
+ else if( pRotMatrix.b2 > pRotMatrix.c3)
+ {
+ // Column 1:
+ TReal s = std::sqrt( static_cast<TReal>(1.0) + pRotMatrix.b2 - pRotMatrix.a1 - pRotMatrix.c3) * static_cast<TReal>(2.0);
+ x = (pRotMatrix.b1 + pRotMatrix.a2) / s;
+ y = static_cast<TReal>(0.25) * s;
+ z = (pRotMatrix.c2 + pRotMatrix.b3) / s;
+ w = (pRotMatrix.a3 - pRotMatrix.c1) / s;
+ } else
+ {
+ // Column 2:
+ TReal s = std::sqrt( static_cast<TReal>(1.0) + pRotMatrix.c3 - pRotMatrix.a1 - pRotMatrix.b2) * static_cast<TReal>(2.0);
+ x = (pRotMatrix.a3 + pRotMatrix.c1) / s;
+ y = (pRotMatrix.c2 + pRotMatrix.b3) / s;
+ z = static_cast<TReal>(0.25) * s;
+ w = (pRotMatrix.b1 - pRotMatrix.a2) / s;
+ }
+}
+
+// ---------------------------------------------------------------------------
+// Construction from euler angles
+template<typename TReal>
+inline aiQuaterniont<TReal>::aiQuaterniont( TReal fPitch, TReal fYaw, TReal fRoll )
+{
+ const TReal fSinPitch(std::sin(fPitch*static_cast<TReal>(0.5)));
+ const TReal fCosPitch(std::cos(fPitch*static_cast<TReal>(0.5)));
+ const TReal fSinYaw(std::sin(fYaw*static_cast<TReal>(0.5)));
+ const TReal fCosYaw(std::cos(fYaw*static_cast<TReal>(0.5)));
+ const TReal fSinRoll(std::sin(fRoll*static_cast<TReal>(0.5)));
+ const TReal fCosRoll(std::cos(fRoll*static_cast<TReal>(0.5)));
+ const TReal fCosPitchCosYaw(fCosPitch*fCosYaw);
+ const TReal fSinPitchSinYaw(fSinPitch*fSinYaw);
+ x = fSinRoll * fCosPitchCosYaw - fCosRoll * fSinPitchSinYaw;
+ y = fCosRoll * fSinPitch * fCosYaw + fSinRoll * fCosPitch * fSinYaw;
+ z = fCosRoll * fCosPitch * fSinYaw - fSinRoll * fSinPitch * fCosYaw;
+ w = fCosRoll * fCosPitchCosYaw + fSinRoll * fSinPitchSinYaw;
+}
+
+// ---------------------------------------------------------------------------
+// Returns a matrix representation of the quaternion
+template<typename TReal>
+inline aiMatrix3x3t<TReal> aiQuaterniont<TReal>::GetMatrix() const
+{
+ aiMatrix3x3t<TReal> resMatrix;
+ resMatrix.a1 = static_cast<TReal>(1.0) - static_cast<TReal>(2.0) * (y * y + z * z);
+ resMatrix.a2 = static_cast<TReal>(2.0) * (x * y - z * w);
+ resMatrix.a3 = static_cast<TReal>(2.0) * (x * z + y * w);
+ resMatrix.b1 = static_cast<TReal>(2.0) * (x * y + z * w);
+ resMatrix.b2 = static_cast<TReal>(1.0) - static_cast<TReal>(2.0) * (x * x + z * z);
+ resMatrix.b3 = static_cast<TReal>(2.0) * (y * z - x * w);
+ resMatrix.c1 = static_cast<TReal>(2.0) * (x * z - y * w);
+ resMatrix.c2 = static_cast<TReal>(2.0) * (y * z + x * w);
+ resMatrix.c3 = static_cast<TReal>(1.0) - static_cast<TReal>(2.0) * (x * x + y * y);
+
+ return resMatrix;
+}
+
+// ---------------------------------------------------------------------------
+// Construction from an axis-angle pair
+template<typename TReal>
+inline aiQuaterniont<TReal>::aiQuaterniont( aiVector3t<TReal> axis, TReal angle)
+{
+ axis.Normalize();
+
+ const TReal sin_a = std::sin( angle / 2 );
+ const TReal cos_a = std::cos( angle / 2 );
+ x = axis.x * sin_a;
+ y = axis.y * sin_a;
+ z = axis.z * sin_a;
+ w = cos_a;
+}
+// ---------------------------------------------------------------------------
+// Construction from am existing, normalized quaternion
+template<typename TReal>
+inline aiQuaterniont<TReal>::aiQuaterniont( aiVector3t<TReal> normalized)
+{
+ x = normalized.x;
+ y = normalized.y;
+ z = normalized.z;
+
+ const TReal t = static_cast<TReal>(1.0) - (x*x) - (y*y) - (z*z);
+
+ if (t < static_cast<TReal>(0.0)) {
+ w = static_cast<TReal>(0.0);
+ }
+ else w = std::sqrt (t);
+}
+
+// ---------------------------------------------------------------------------
+// Performs a spherical interpolation between two quaternions
+// Implementation adopted from the gmtl project. All others I found on the net fail in some cases.
+// Congrats, gmtl!
+template<typename TReal>
+inline void aiQuaterniont<TReal>::Interpolate( aiQuaterniont& pOut, const aiQuaterniont& pStart, const aiQuaterniont& pEnd, TReal pFactor)
+{
+ // calc cosine theta
+ TReal cosom = pStart.x * pEnd.x + pStart.y * pEnd.y + pStart.z * pEnd.z + pStart.w * pEnd.w;
+
+ // adjust signs (if necessary)
+ aiQuaterniont end = pEnd;
+ if( cosom < static_cast<TReal>(0.0))
+ {
+ cosom = -cosom;
+ end.x = -end.x; // Reverse all signs
+ end.y = -end.y;
+ end.z = -end.z;
+ end.w = -end.w;
+ }
+
+ // Calculate coefficients
+ TReal sclp, sclq;
+ if( (static_cast<TReal>(1.0) - cosom) > static_cast<TReal>(0.0001)) // 0.0001 -> some epsillon
+ {
+ // Standard case (slerp)
+ TReal omega, sinom;
+ omega = std::acos( cosom); // extract theta from dot product's cos theta
+ sinom = std::sin( omega);
+ sclp = std::sin( (static_cast<TReal>(1.0) - pFactor) * omega) / sinom;
+ sclq = std::sin( pFactor * omega) / sinom;
+ } else
+ {
+ // Very close, do linear interp (because it's faster)
+ sclp = static_cast<TReal>(1.0) - pFactor;
+ sclq = pFactor;
+ }
+
+ pOut.x = sclp * pStart.x + sclq * end.x;
+ pOut.y = sclp * pStart.y + sclq * end.y;
+ pOut.z = sclp * pStart.z + sclq * end.z;
+ pOut.w = sclp * pStart.w + sclq * end.w;
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline aiQuaterniont<TReal>& aiQuaterniont<TReal>::Normalize()
+{
+ // compute the magnitude and divide through it
+ const TReal mag = std::sqrt(x*x + y*y + z*z + w*w);
+ if (mag)
+ {
+ const TReal invMag = static_cast<TReal>(1.0)/mag;
+ x *= invMag;
+ y *= invMag;
+ z *= invMag;
+ w *= invMag;
+ }
+ return *this;
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline aiQuaterniont<TReal> aiQuaterniont<TReal>::operator* (const aiQuaterniont& t) const
+{
+ return aiQuaterniont(w*t.w - x*t.x - y*t.y - z*t.z,
+ w*t.x + x*t.w + y*t.z - z*t.y,
+ w*t.y + y*t.w + z*t.x - x*t.z,
+ w*t.z + z*t.w + x*t.y - y*t.x);
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline aiQuaterniont<TReal>& aiQuaterniont<TReal>::Conjugate ()
+{
+ x = -x;
+ y = -y;
+ z = -z;
+ return *this;
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline aiVector3t<TReal> aiQuaterniont<TReal>::Rotate (const aiVector3t<TReal>& v) const
+{
+ aiQuaterniont q2(0.f,v.x,v.y,v.z), q = *this, qinv = q;
+ qinv.Conjugate();
+
+ q = q*q2*qinv;
+ return aiVector3t<TReal>(q.x,q.y,q.z);
+}
+
+#endif
+#endif // AI_QUATERNION_INL_INC
diff --git a/src/mesh/assimp-master/include/assimp/scene.h b/src/mesh/assimp-master/include/assimp/scene.h
new file mode 100644
index 0000000..f4c6d79
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/scene.h
@@ -0,0 +1,443 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file scene.h
+ * @brief Defines the data structures in which the imported scene is returned.
+ */
+#pragma once
+#ifndef AI_SCENE_H_INC
+#define AI_SCENE_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/types.h>
+#include <assimp/texture.h>
+#include <assimp/mesh.h>
+#include <assimp/light.h>
+#include <assimp/camera.h>
+#include <assimp/material.h>
+#include <assimp/anim.h>
+#include <assimp/metadata.h>
+
+#ifdef __cplusplus
+# include <cstdlib>
+extern "C" {
+#endif
+
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wattributes"
+#endif
+
+// -------------------------------------------------------------------------------
+/**
+ * A node in the imported hierarchy.
+ *
+ * Each node has name, a parent node (except for the root node),
+ * a transformation relative to its parent and possibly several child nodes.
+ * Simple file formats don't support hierarchical structures - for these formats
+ * the imported scene does consist of only a single root node without children.
+ */
+// -------------------------------------------------------------------------------
+struct ASSIMP_API aiNode
+{
+ /** The name of the node.
+ *
+ * The name might be empty (length of zero) but all nodes which
+ * need to be referenced by either bones or animations are named.
+ * Multiple nodes may have the same name, except for nodes which are referenced
+ * by bones (see #aiBone and #aiMesh::mBones). Their names *must* be unique.
+ *
+ * Cameras and lights reference a specific node by name - if there
+ * are multiple nodes with this name, they are assigned to each of them.
+ * <br>
+ * There are no limitations with regard to the characters contained in
+ * the name string as it is usually taken directly from the source file.
+ *
+ * Implementations should be able to handle tokens such as whitespace, tabs,
+ * line feeds, quotation marks, ampersands etc.
+ *
+ * Sometimes assimp introduces new nodes not present in the source file
+ * into the hierarchy (usually out of necessity because sometimes the
+ * source hierarchy format is simply not compatible). Their names are
+ * surrounded by @verbatim <> @endverbatim e.g.
+ * @verbatim<DummyRootNode> @endverbatim.
+ */
+ C_STRUCT aiString mName;
+
+ /** The transformation relative to the node's parent. */
+ C_STRUCT aiMatrix4x4 mTransformation;
+
+ /** Parent node. nullptr if this node is the root node. */
+ C_STRUCT aiNode* mParent;
+
+ /** The number of child nodes of this node. */
+ unsigned int mNumChildren;
+
+ /** The child nodes of this node. nullptr if mNumChildren is 0. */
+ C_STRUCT aiNode** mChildren;
+
+ /** The number of meshes of this node. */
+ unsigned int mNumMeshes;
+
+ /** The meshes of this node. Each entry is an index into the
+ * mesh list of the #aiScene.
+ */
+ unsigned int* mMeshes;
+
+ /** Metadata associated with this node or nullptr if there is no metadata.
+ * Whether any metadata is generated depends on the source file format. See the
+ * @link importer_notes @endlink page for more information on every source file
+ * format. Importers that don't document any metadata don't write any.
+ */
+ C_STRUCT aiMetadata* mMetaData;
+
+#ifdef __cplusplus
+ /** Constructor */
+ aiNode();
+
+ /** Construction from a specific name */
+ explicit aiNode(const std::string& name);
+
+ /** Destructor */
+ ~aiNode();
+
+ /** Searches for a node with a specific name, beginning at this
+ * nodes. Normally you will call this method on the root node
+ * of the scene.
+ *
+ * @param name Name to search for
+ * @return nullptr or a valid Node if the search was successful.
+ */
+ inline
+ const aiNode* FindNode(const aiString& name) const {
+ return FindNode(name.data);
+ }
+
+ inline
+ aiNode* FindNode(const aiString& name) {
+ return FindNode(name.data);
+ }
+
+ const aiNode* FindNode(const char* name) const;
+
+ aiNode* FindNode(const char* name);
+
+ /**
+ * @brief Will add new children.
+ * @param numChildren Number of children to add.
+ * @param children The array with pointers showing to the children.
+ */
+ void addChildren(unsigned int numChildren, aiNode **children);
+#endif // __cplusplus
+};
+
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
+// -------------------------------------------------------------------------------
+/**
+ * Specifies that the scene data structure that was imported is not complete.
+ * This flag bypasses some internal validations and allows the import
+ * of animation skeletons, material libraries or camera animation paths
+ * using Assimp. Most applications won't support such data.
+ */
+#define AI_SCENE_FLAGS_INCOMPLETE 0x1
+
+/**
+ * This flag is set by the validation postprocess-step (aiPostProcess_ValidateDS)
+ * if the validation is successful. In a validated scene you can be sure that
+ * any cross references in the data structure (e.g. vertex indices) are valid.
+ */
+#define AI_SCENE_FLAGS_VALIDATED 0x2
+
+/**
+ * This flag is set by the validation postprocess-step (aiPostProcess_ValidateDS)
+ * if the validation is successful but some issues have been found.
+ * This can for example mean that a texture that does not exist is referenced
+ * by a material or that the bone weights for a vertex don't sum to 1.0 ... .
+ * In most cases you should still be able to use the import. This flag could
+ * be useful for applications which don't capture Assimp's log output.
+ */
+#define AI_SCENE_FLAGS_VALIDATION_WARNING 0x4
+
+/**
+ * This flag is currently only set by the aiProcess_JoinIdenticalVertices step.
+ * It indicates that the vertices of the output meshes aren't in the internal
+ * verbose format anymore. In the verbose format all vertices are unique,
+ * no vertex is ever referenced by more than one face.
+ */
+#define AI_SCENE_FLAGS_NON_VERBOSE_FORMAT 0x8
+
+ /**
+ * Denotes pure height-map terrain data. Pure terrains usually consist of quads,
+ * sometimes triangles, in a regular grid. The x,y coordinates of all vertex
+ * positions refer to the x,y coordinates on the terrain height map, the z-axis
+ * stores the elevation at a specific point.
+ *
+ * TER (Terragen) and HMP (3D Game Studio) are height map formats.
+ * @note Assimp is probably not the best choice for loading *huge* terrains -
+ * fully triangulated data takes extremely much free store and should be avoided
+ * as long as possible (typically you'll do the triangulation when you actually
+ * need to render it).
+ */
+#define AI_SCENE_FLAGS_TERRAIN 0x10
+
+ /**
+ * Specifies that the scene data can be shared between structures. For example:
+ * one vertex in few faces. \ref AI_SCENE_FLAGS_NON_VERBOSE_FORMAT can not be
+ * used for this because \ref AI_SCENE_FLAGS_NON_VERBOSE_FORMAT has internal
+ * meaning about postprocessing steps.
+ */
+#define AI_SCENE_FLAGS_ALLOW_SHARED 0x20
+
+// -------------------------------------------------------------------------------
+/** The root structure of the imported data.
+ *
+ * Everything that was imported from the given file can be accessed from here.
+ * Objects of this class are generally maintained and owned by Assimp, not
+ * by the caller. You shouldn't want to instance it, nor should you ever try to
+ * delete a given scene on your own.
+ */
+// -------------------------------------------------------------------------------
+struct aiScene
+{
+ /** Any combination of the AI_SCENE_FLAGS_XXX flags. By default
+ * this value is 0, no flags are set. Most applications will
+ * want to reject all scenes with the AI_SCENE_FLAGS_INCOMPLETE
+ * bit set.
+ */
+ unsigned int mFlags;
+
+ /** The root node of the hierarchy.
+ *
+ * There will always be at least the root node if the import
+ * was successful (and no special flags have been set).
+ * Presence of further nodes depends on the format and content
+ * of the imported file.
+ */
+ C_STRUCT aiNode* mRootNode;
+
+ /** The number of meshes in the scene. */
+ unsigned int mNumMeshes;
+
+ /** The array of meshes.
+ *
+ * Use the indices given in the aiNode structure to access
+ * this array. The array is mNumMeshes in size. If the
+ * AI_SCENE_FLAGS_INCOMPLETE flag is not set there will always
+ * be at least ONE material.
+ */
+ C_STRUCT aiMesh** mMeshes;
+
+ /** The number of materials in the scene. */
+ unsigned int mNumMaterials;
+
+ /** The array of materials.
+ *
+ * Use the index given in each aiMesh structure to access this
+ * array. The array is mNumMaterials in size. If the
+ * AI_SCENE_FLAGS_INCOMPLETE flag is not set there will always
+ * be at least ONE material.
+ */
+ C_STRUCT aiMaterial** mMaterials;
+
+ /** The number of animations in the scene. */
+ unsigned int mNumAnimations;
+
+ /** The array of animations.
+ *
+ * All animations imported from the given file are listed here.
+ * The array is mNumAnimations in size.
+ */
+ C_STRUCT aiAnimation** mAnimations;
+
+ /** The number of textures embedded into the file */
+ unsigned int mNumTextures;
+
+ /** The array of embedded textures.
+ *
+ * Not many file formats embed their textures into the file.
+ * An example is Quake's MDL format (which is also used by
+ * some GameStudio versions)
+ */
+ C_STRUCT aiTexture** mTextures;
+
+ /** The number of light sources in the scene. Light sources
+ * are fully optional, in most cases this attribute will be 0
+ */
+ unsigned int mNumLights;
+
+ /** The array of light sources.
+ *
+ * All light sources imported from the given file are
+ * listed here. The array is mNumLights in size.
+ */
+ C_STRUCT aiLight** mLights;
+
+ /** The number of cameras in the scene. Cameras
+ * are fully optional, in most cases this attribute will be 0
+ */
+ unsigned int mNumCameras;
+
+ /** The array of cameras.
+ *
+ * All cameras imported from the given file are listed here.
+ * The array is mNumCameras in size. The first camera in the
+ * array (if existing) is the default camera view into
+ * the scene.
+ */
+ C_STRUCT aiCamera** mCameras;
+
+ /**
+ * @brief The global metadata assigned to the scene itself.
+ *
+ * This data contains global metadata which belongs to the scene like
+ * unit-conversions, versions, vendors or other model-specific data. This
+ * can be used to store format-specific metadata as well.
+ */
+ C_STRUCT aiMetadata* mMetaData;
+
+ /** The name of the scene itself.
+ */
+ C_STRUCT aiString mName;
+
+#ifdef __cplusplus
+
+ //! Default constructor - set everything to 0/nullptr
+ ASSIMP_API aiScene();
+
+ //! Destructor
+ ASSIMP_API ~aiScene();
+
+ //! Check whether the scene contains meshes
+ //! Unless no special scene flags are set this will always be true.
+ inline bool HasMeshes() const {
+ return mMeshes != nullptr && mNumMeshes > 0;
+ }
+
+ //! Check whether the scene contains materials
+ //! Unless no special scene flags are set this will always be true.
+ inline bool HasMaterials() const {
+ return mMaterials != nullptr && mNumMaterials > 0;
+ }
+
+ //! Check whether the scene contains lights
+ inline bool HasLights() const {
+ return mLights != nullptr && mNumLights > 0;
+ }
+
+ //! Check whether the scene contains textures
+ inline bool HasTextures() const {
+ return mTextures != nullptr && mNumTextures > 0;
+ }
+
+ //! Check whether the scene contains cameras
+ inline bool HasCameras() const {
+ return mCameras != nullptr && mNumCameras > 0;
+ }
+
+ //! Check whether the scene contains animations
+ inline bool HasAnimations() const {
+ return mAnimations != nullptr && mNumAnimations > 0;
+ }
+
+ //! Returns a short filename from a full path
+ static const char* GetShortFilename(const char* filename) {
+ const char* lastSlash = strrchr(filename, '/');
+ if (lastSlash == nullptr) {
+ lastSlash = strrchr(filename, '\\');
+ }
+ const char* shortFilename = lastSlash != nullptr ? lastSlash + 1 : filename;
+ return shortFilename;
+ }
+
+ //! Returns an embedded texture
+ const aiTexture* GetEmbeddedTexture(const char* filename) const {
+ return GetEmbeddedTextureAndIndex(filename).first;
+ }
+
+ //! Returns an embedded texture and its index
+ std::pair<const aiTexture*, int> GetEmbeddedTextureAndIndex(const char* filename) const {
+ if (nullptr==filename) {
+ return std::make_pair(nullptr, -1);
+ }
+ // lookup using texture ID (if referenced like: "*1", "*2", etc.)
+ if ('*' == *filename) {
+ int index = std::atoi(filename + 1);
+ if (0 > index || mNumTextures <= static_cast<unsigned>(index)) {
+ return std::make_pair(nullptr, -1);
+ }
+ return std::make_pair(mTextures[index], index);
+ }
+ // lookup using filename
+ const char* shortFilename = GetShortFilename(filename);
+ if (nullptr == shortFilename) {
+ return std::make_pair(nullptr, -1);
+ }
+
+ for (unsigned int i = 0; i < mNumTextures; i++) {
+ const char* shortTextureFilename = GetShortFilename(mTextures[i]->mFilename.C_Str());
+ if (strcmp(shortTextureFilename, shortFilename) == 0) {
+ return std::make_pair(mTextures[i], i);
+ }
+ }
+ return std::make_pair(nullptr, -1);
+ }
+#endif // __cplusplus
+
+ /** Internal data, do not touch */
+#ifdef __cplusplus
+ void* mPrivate;
+#else
+ char* mPrivate;
+#endif
+
+};
+
+#ifdef __cplusplus
+}
+#endif //! extern "C"
+
+#endif // AI_SCENE_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/texture.h b/src/mesh/assimp-master/include/assimp/texture.h
new file mode 100644
index 0000000..576fa77
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/texture.h
@@ -0,0 +1,222 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file texture.h
+ * @brief Defines texture helper structures for the library
+ *
+ * Used for file formats which embed their textures into the model file.
+ * Supported are both normal textures, which are stored as uncompressed
+ * pixels, and "compressed" textures, which are stored in a file format
+ * such as PNG or TGA.
+ */
+#pragma once
+#ifndef AI_TEXTURE_H_INC
+#define AI_TEXTURE_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#include <assimp/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// --------------------------------------------------------------------------------
+
+/** \def AI_EMBEDDED_TEXNAME_PREFIX
+ * \ref AI_MAKE_EMBEDDED_TEXNAME
+ */
+#ifndef AI_EMBEDDED_TEXNAME_PREFIX
+# define AI_EMBEDDED_TEXNAME_PREFIX "*"
+#endif
+
+/** @def AI_MAKE_EMBEDDED_TEXNAME
+ * Used to build the reserved path name used by the material system to
+ * reference textures that are embedded into their corresponding
+ * model files. The parameter specifies the index of the texture
+ * (zero-based, in the aiScene::mTextures array)
+ */
+#if (!defined AI_MAKE_EMBEDDED_TEXNAME)
+# define AI_MAKE_EMBEDDED_TEXNAME(_n_) AI_EMBEDDED_TEXNAME_PREFIX # _n_
+#endif
+
+#include "./Compiler/pushpack1.h"
+
+// --------------------------------------------------------------------------------
+/** @brief Helper structure to represent a texel in a ARGB8888 format
+*
+* Used by aiTexture.
+*/
+struct aiTexel {
+ unsigned char b,g,r,a;
+
+#ifdef __cplusplus
+ //! Comparison operator
+ bool operator== (const aiTexel& other) const {
+ return b == other.b && r == other.r &&
+ g == other.g && a == other.a;
+ }
+
+ //! Inverse comparison operator
+ bool operator!= (const aiTexel& other) const {
+ return b != other.b || r != other.r ||
+ g != other.g || a != other.a;
+ }
+
+ //! Conversion to a floating-point 4d color
+ operator aiColor4D() const {
+ return aiColor4D(r/255.f,g/255.f,b/255.f,a/255.f);
+ }
+#endif // __cplusplus
+
+} PACK_STRUCT;
+
+#include "./Compiler/poppack1.h"
+
+#define HINTMAXTEXTURELEN 9
+
+// --------------------------------------------------------------------------------
+/** Helper structure to describe an embedded texture
+ *
+ * Normally textures are contained in external files but some file formats embed
+ * them directly in the model file. There are two types of embedded textures:
+ * 1. Uncompressed textures. The color data is given in an uncompressed format.
+ * 2. Compressed textures stored in a file format like png or jpg. The raw file
+ * bytes are given so the application must utilize an image decoder (e.g. DevIL) to
+ * get access to the actual color data.
+ *
+ * Embedded textures are referenced from materials using strings like "*0", "*1", etc.
+ * as the texture paths (a single asterisk character followed by the
+ * zero-based index of the texture in the aiScene::mTextures array).
+ */
+struct aiTexture {
+ /** Width of the texture, in pixels
+ *
+ * If mHeight is zero the texture is compressed in a format
+ * like JPEG. In this case mWidth specifies the size of the
+ * memory area pcData is pointing to, in bytes.
+ */
+ unsigned int mWidth;
+
+ /** Height of the texture, in pixels
+ *
+ * If this value is zero, pcData points to an compressed texture
+ * in any format (e.g. JPEG).
+ */
+ unsigned int mHeight;
+
+ /** A hint from the loader to make it easier for applications
+ * to determine the type of embedded textures.
+ *
+ * If mHeight != 0 this member is show how data is packed. Hint will consist of
+ * two parts: channel order and channel bitness (count of the bits for every
+ * color channel). For simple parsing by the viewer it's better to not omit
+ * absent color channel and just use 0 for bitness. For example:
+ * 1. Image contain RGBA and 8 bit per channel, achFormatHint == "rgba8888";
+ * 2. Image contain ARGB and 8 bit per channel, achFormatHint == "argb8888";
+ * 3. Image contain RGB and 5 bit for R and B channels and 6 bit for G channel, achFormatHint == "rgba5650";
+ * 4. One color image with B channel and 1 bit for it, achFormatHint == "rgba0010";
+ * If mHeight == 0 then achFormatHint is set set to '\\0\\0\\0\\0' if the loader has no additional
+ * information about the texture file format used OR the
+ * file extension of the format without a trailing dot. If there
+ * are multiple file extensions for a format, the shortest
+ * extension is chosen (JPEG maps to 'jpg', not to 'jpeg').
+ * E.g. 'dds\\0', 'pcx\\0', 'jpg\\0'. All characters are lower-case.
+ * The fourth character will always be '\\0'.
+ */
+ char achFormatHint[ HINTMAXTEXTURELEN ];// 8 for string + 1 for terminator.
+
+ /** Data of the texture.
+ *
+ * Points to an array of mWidth * mHeight aiTexel's.
+ * The format of the texture data is always ARGB8888 to
+ * make the implementation for user of the library as easy
+ * as possible. If mHeight = 0 this is a pointer to a memory
+ * buffer of size mWidth containing the compressed texture
+ * data. Good luck, have fun!
+ */
+ C_STRUCT aiTexel* pcData;
+
+ /** Texture original filename
+ *
+ * Used to get the texture reference
+ */
+ C_STRUCT aiString mFilename;
+
+#ifdef __cplusplus
+
+ //! For compressed textures (mHeight == 0): compare the
+ //! format hint against a given string.
+ //! @param s Input string. 3 characters are maximally processed.
+ //! Example values: "jpg", "png"
+ //! @return true if the given string matches the format hint
+ bool CheckFormat(const char* s) const {
+ if (nullptr == s) {
+ return false;
+ }
+
+ return (0 == ::strncmp(achFormatHint, s, sizeof(achFormatHint)));
+ }
+
+ // Construction
+ aiTexture() AI_NO_EXCEPT :
+ mWidth(0),
+ mHeight(0),
+ pcData(nullptr),
+ mFilename() {
+ memset(achFormatHint, 0, sizeof(achFormatHint));
+ }
+
+ // Destruction
+ ~aiTexture () {
+ delete[] pcData;
+ }
+#endif
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // AI_TEXTURE_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/types.h b/src/mesh/assimp-master/include/assimp/types.h
new file mode 100644
index 0000000..a41363b
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/types.h
@@ -0,0 +1,538 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file types.h
+ * Basic data types and primitives, such as vectors or colors.
+ */
+#pragma once
+#ifndef AI_TYPES_H_INC
+#define AI_TYPES_H_INC
+
+#ifdef __GNUC__
+#pragma GCC system_header
+#endif
+
+// Some runtime headers
+#include <limits.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/types.h>
+
+// Our compile configuration
+#include <assimp/defs.h>
+
+// Some types moved to separate header due to size of operators
+#include <assimp/vector2.h>
+#include <assimp/vector3.h>
+#include <assimp/color4.h>
+#include <assimp/matrix3x3.h>
+#include <assimp/matrix4x4.h>
+#include <assimp/quaternion.h>
+
+typedef int32_t ai_int32;
+typedef uint32_t ai_uint32;
+
+#ifdef __cplusplus
+
+#include <cstring>
+#include <new> // for std::nothrow_t
+#include <string> // for aiString::Set(const std::string&)
+
+namespace Assimp {
+//! @cond never
+namespace Intern {
+// --------------------------------------------------------------------
+/** @brief Internal helper class to utilize our internal new/delete
+ * routines for allocating object of this and derived classes.
+ *
+ * By doing this you can safely share class objects between Assimp
+ * and the application - it works even over DLL boundaries. A good
+ * example is the #IOSystem where the application allocates its custom
+ * #IOSystem, then calls #Importer::SetIOSystem(). When the Importer
+ * destructs, Assimp calls operator delete on the stored #IOSystem.
+ * If it lies on a different heap than Assimp is working with,
+ * the application is determined to crash.
+ */
+// --------------------------------------------------------------------
+#ifndef SWIG
+struct ASSIMP_API AllocateFromAssimpHeap {
+ // http://www.gotw.ca/publications/mill15.htm
+
+ // new/delete overload
+ void *operator new(size_t num_bytes) /* throw( std::bad_alloc ) */;
+ void *operator new(size_t num_bytes, const std::nothrow_t &) throw();
+ void operator delete(void *data);
+
+ // array new/delete overload
+ void *operator new[](size_t num_bytes) /* throw( std::bad_alloc ) */;
+ void *operator new[](size_t num_bytes, const std::nothrow_t &) throw();
+ void operator delete[](void *data);
+
+}; // struct AllocateFromAssimpHeap
+#endif
+} // namespace Intern
+//! @endcond
+} // namespace Assimp
+
+extern "C" {
+#endif
+
+/** Maximum dimension for strings, ASSIMP strings are zero terminated. */
+#ifdef __cplusplus
+static const size_t MAXLEN = 1024;
+#else
+#define MAXLEN 1024
+#endif
+
+// ----------------------------------------------------------------------------------
+/** Represents a plane in a three-dimensional, euclidean space
+*/
+struct aiPlane {
+#ifdef __cplusplus
+ aiPlane() AI_NO_EXCEPT : a(0.f), b(0.f), c(0.f), d(0.f) {}
+ aiPlane(ai_real _a, ai_real _b, ai_real _c, ai_real _d) :
+ a(_a), b(_b), c(_c), d(_d) {}
+
+ aiPlane(const aiPlane &o) :
+ a(o.a), b(o.b), c(o.c), d(o.d) {}
+
+#endif // !__cplusplus
+
+ //! Plane equation
+ ai_real a, b, c, d;
+}; // !struct aiPlane
+
+// ----------------------------------------------------------------------------------
+/** Represents a ray
+*/
+struct aiRay {
+#ifdef __cplusplus
+ aiRay() AI_NO_EXCEPT {}
+ aiRay(const aiVector3D &_pos, const aiVector3D &_dir) :
+ pos(_pos), dir(_dir) {}
+
+ aiRay(const aiRay &o) :
+ pos(o.pos), dir(o.dir) {}
+
+#endif // !__cplusplus
+
+ //! Position and direction of the ray
+ C_STRUCT aiVector3D pos, dir;
+}; // !struct aiRay
+
+// ----------------------------------------------------------------------------------
+/** Represents a color in Red-Green-Blue space.
+*/
+struct aiColor3D {
+#ifdef __cplusplus
+ aiColor3D() AI_NO_EXCEPT : r(0.0f), g(0.0f), b(0.0f) {}
+ aiColor3D(ai_real _r, ai_real _g, ai_real _b) :
+ r(_r), g(_g), b(_b) {}
+ explicit aiColor3D(ai_real _r) :
+ r(_r), g(_r), b(_r) {}
+ aiColor3D(const aiColor3D &o) :
+ r(o.r), g(o.g), b(o.b) {}
+
+ aiColor3D &operator=(const aiColor3D &o) {
+ r = o.r;
+ g = o.g;
+ b = o.b;
+ return *this;
+ }
+
+ /** Component-wise comparison */
+ // TODO: add epsilon?
+ bool operator==(const aiColor3D &other) const { return r == other.r && g == other.g && b == other.b; }
+
+ /** Component-wise inverse comparison */
+ // TODO: add epsilon?
+ bool operator!=(const aiColor3D &other) const { return r != other.r || g != other.g || b != other.b; }
+
+ /** Component-wise comparison */
+ // TODO: add epsilon?
+ bool operator<(const aiColor3D &other) const {
+ return r < other.r || (r == other.r && (g < other.g || (g == other.g && b < other.b)));
+ }
+
+ /** Component-wise addition */
+ aiColor3D operator+(const aiColor3D &c) const {
+ return aiColor3D(r + c.r, g + c.g, b + c.b);
+ }
+
+ /** Component-wise subtraction */
+ aiColor3D operator-(const aiColor3D &c) const {
+ return aiColor3D(r - c.r, g - c.g, b - c.b);
+ }
+
+ /** Component-wise multiplication */
+ aiColor3D operator*(const aiColor3D &c) const {
+ return aiColor3D(r * c.r, g * c.g, b * c.b);
+ }
+
+ /** Multiply with a scalar */
+ aiColor3D operator*(ai_real f) const {
+ return aiColor3D(r * f, g * f, b * f);
+ }
+
+ /** Access a specific color component */
+ ai_real operator[](unsigned int i) const {
+ return *(&r + i);
+ }
+
+ /** Access a specific color component */
+ ai_real &operator[](unsigned int i) {
+ if (0 == i) {
+ return r;
+ } else if (1 == i) {
+ return g;
+ } else if (2 == i) {
+ return b;
+ }
+ return r;
+ }
+
+ /** Check whether a color is black */
+ bool IsBlack() const {
+ static const ai_real epsilon = ai_real(10e-3);
+ return std::fabs(r) < epsilon && std::fabs(g) < epsilon && std::fabs(b) < epsilon;
+ }
+
+#endif // !__cplusplus
+
+ //! Red, green and blue color values
+ ai_real r, g, b;
+}; // !struct aiColor3D
+
+// ----------------------------------------------------------------------------------
+/** Represents an UTF-8 string, zero byte terminated.
+ *
+ * The character set of an aiString is explicitly defined to be UTF-8. This Unicode
+ * transformation was chosen in the belief that most strings in 3d files are limited
+ * to ASCII, thus the character set needed to be strictly ASCII compatible.
+ *
+ * Most text file loaders provide proper Unicode input file handling, special unicode
+ * characters are correctly transcoded to UTF8 and are kept throughout the libraries'
+ * import pipeline.
+ *
+ * For most applications, it will be absolutely sufficient to interpret the
+ * aiString as ASCII data and work with it as one would work with a plain char*.
+ * Windows users in need of proper support for i.e asian characters can use the
+ * MultiByteToWideChar(), WideCharToMultiByte() WinAPI functionality to convert the
+ * UTF-8 strings to their working character set (i.e. MBCS, WideChar).
+ *
+ * We use this representation instead of std::string to be C-compatible. The
+ * (binary) length of such a string is limited to MAXLEN characters (including the
+ * the terminating zero).
+*/
+struct aiString {
+#ifdef __cplusplus
+ /** Default constructor, the string is set to have zero length */
+ aiString() AI_NO_EXCEPT
+ : length(0) {
+ data[0] = '\0';
+
+#ifdef ASSIMP_BUILD_DEBUG
+ // Debug build: overwrite the string on its full length with ESC (27)
+ memset(data + 1, 27, MAXLEN - 1);
+#endif
+ }
+
+ /** Copy constructor */
+ aiString(const aiString &rOther) :
+ length(rOther.length) {
+ // Crop the string to the maximum length
+ length = length >= MAXLEN ? MAXLEN - 1 : length;
+ memcpy(data, rOther.data, length);
+ data[length] = '\0';
+ }
+
+ /** Constructor from std::string */
+ explicit aiString(const std::string &pString) :
+ length((ai_uint32)pString.length()) {
+ length = length >= MAXLEN ? MAXLEN - 1 : length;
+ memcpy(data, pString.c_str(), length);
+ data[length] = '\0';
+ }
+
+ /** Copy a std::string to the aiString */
+ void Set(const std::string &pString) {
+ if (pString.length() > MAXLEN - 1) {
+ return;
+ }
+ length = (ai_uint32)pString.length();
+ memcpy(data, pString.c_str(), length);
+ data[length] = 0;
+ }
+
+ /** Copy a const char* to the aiString */
+ void Set(const char *sz) {
+ ai_int32 len = (ai_uint32)::strlen(sz);
+ if (len > (ai_int32)MAXLEN - 1) {
+ len = (ai_int32) MAXLEN - 1;
+ }
+ length = len;
+ memcpy(data, sz, len);
+ data[len] = 0;
+ }
+
+ /** Assignment operator */
+ aiString &operator=(const aiString &rOther) {
+ if (this == &rOther) {
+ return *this;
+ }
+
+ length = rOther.length;
+ if (length >(MAXLEN - 1)) {
+ length = (ai_int32) MAXLEN - 1;
+ }
+
+ memcpy(data, rOther.data, length);
+ data[length] = '\0';
+ return *this;
+ }
+
+ /** Assign a const char* to the string */
+ aiString &operator=(const char *sz) {
+ Set(sz);
+ return *this;
+ }
+
+ /** Assign a cstd::string to the string */
+ aiString &operator=(const std::string &pString) {
+ Set(pString);
+ return *this;
+ }
+
+ /** Comparison operator */
+ bool operator==(const aiString &other) const {
+ return (length == other.length && 0 == memcmp(data, other.data, length));
+ }
+
+ /** Inverse comparison operator */
+ bool operator!=(const aiString &other) const {
+ return (length != other.length || 0 != memcmp(data, other.data, length));
+ }
+
+ /** Append a string to the string */
+ void Append(const char *app) {
+ const ai_uint32 len = (ai_uint32)::strlen(app);
+ if (!len) {
+ return;
+ }
+ if (length + len >= MAXLEN) {
+ return;
+ }
+
+ memcpy(&data[length], app, len + 1);
+ length += len;
+ }
+
+ /** Clear the string - reset its length to zero */
+ void Clear() {
+ length = 0;
+ data[0] = '\0';
+
+#ifdef ASSIMP_BUILD_DEBUG
+ // Debug build: overwrite the string on its full length with ESC (27)
+ memset(data + 1, 27, MAXLEN - 1);
+#endif
+ }
+
+ /** Returns a pointer to the underlying zero-terminated array of characters */
+ const char *C_Str() const {
+ return data;
+ }
+
+#endif // !__cplusplus
+
+ /** Binary length of the string excluding the terminal 0. This is NOT the
+ * logical length of strings containing UTF-8 multi-byte sequences! It's
+ * the number of bytes from the beginning of the string to its end.*/
+ ai_uint32 length;
+
+ /** String buffer. Size limit is MAXLEN */
+ char data[MAXLEN];
+}; // !struct aiString
+
+// ----------------------------------------------------------------------------------
+/** Standard return type for some library functions.
+ * Rarely used, and if, mostly in the C API.
+ */
+typedef enum aiReturn {
+ /** Indicates that a function was successful */
+ aiReturn_SUCCESS = 0x0,
+
+ /** Indicates that a function failed */
+ aiReturn_FAILURE = -0x1,
+
+ /** Indicates that not enough memory was available
+ * to perform the requested operation
+ */
+ aiReturn_OUTOFMEMORY = -0x3,
+
+ /** @cond never
+ * Force 32-bit size enum
+ */
+ _AI_ENFORCE_ENUM_SIZE = 0x7fffffff
+
+ /// @endcond
+} aiReturn; // !enum aiReturn
+
+// just for backwards compatibility, don't use these constants anymore
+#define AI_SUCCESS aiReturn_SUCCESS
+#define AI_FAILURE aiReturn_FAILURE
+#define AI_OUTOFMEMORY aiReturn_OUTOFMEMORY
+
+// ----------------------------------------------------------------------------------
+/** Seek origins (for the virtual file system API).
+ * Much cooler than using SEEK_SET, SEEK_CUR or SEEK_END.
+ */
+enum aiOrigin {
+ /** Beginning of the file */
+ aiOrigin_SET = 0x0,
+
+ /** Current position of the file pointer */
+ aiOrigin_CUR = 0x1,
+
+ /** End of the file, offsets must be negative */
+ aiOrigin_END = 0x2,
+
+ /** @cond never
+ * Force 32-bit size enum
+ */
+ _AI_ORIGIN_ENFORCE_ENUM_SIZE = 0x7fffffff
+
+ /// @endcond
+}; // !enum aiOrigin
+
+// ----------------------------------------------------------------------------------
+/** @brief Enumerates predefined log streaming destinations.
+ * Logging to these streams can be enabled with a single call to
+ * #LogStream::createDefaultStream.
+ */
+enum aiDefaultLogStream {
+ /** Stream the log to a file */
+ aiDefaultLogStream_FILE = 0x1,
+
+ /** Stream the log to std::cout */
+ aiDefaultLogStream_STDOUT = 0x2,
+
+ /** Stream the log to std::cerr */
+ aiDefaultLogStream_STDERR = 0x4,
+
+ /** MSVC only: Stream the log the the debugger
+ * (this relies on OutputDebugString from the Win32 SDK)
+ */
+ aiDefaultLogStream_DEBUGGER = 0x8,
+
+ /** @cond never
+ * Force 32-bit size enum
+ */
+ _AI_DLS_ENFORCE_ENUM_SIZE = 0x7fffffff
+ /// @endcond
+}; // !enum aiDefaultLogStream
+
+// just for backwards compatibility, don't use these constants anymore
+#define DLS_FILE aiDefaultLogStream_FILE
+#define DLS_STDOUT aiDefaultLogStream_STDOUT
+#define DLS_STDERR aiDefaultLogStream_STDERR
+#define DLS_DEBUGGER aiDefaultLogStream_DEBUGGER
+
+// ----------------------------------------------------------------------------------
+/** Stores the memory requirements for different components (e.g. meshes, materials,
+ * animations) of an import. All sizes are in bytes.
+ * @see Importer::GetMemoryRequirements()
+*/
+struct aiMemoryInfo {
+#ifdef __cplusplus
+
+ /** Default constructor */
+ aiMemoryInfo() AI_NO_EXCEPT
+ : textures(0),
+ materials(0),
+ meshes(0),
+ nodes(0),
+ animations(0),
+ cameras(0),
+ lights(0),
+ total(0) {}
+
+#endif
+
+ /** Storage allocated for texture data */
+ unsigned int textures;
+
+ /** Storage allocated for material data */
+ unsigned int materials;
+
+ /** Storage allocated for mesh data */
+ unsigned int meshes;
+
+ /** Storage allocated for node data */
+ unsigned int nodes;
+
+ /** Storage allocated for animation data */
+ unsigned int animations;
+
+ /** Storage allocated for camera data */
+ unsigned int cameras;
+
+ /** Storage allocated for light data */
+ unsigned int lights;
+
+ /** Total storage allocated for the full import. */
+ unsigned int total;
+}; // !struct aiMemoryInfo
+
+#ifdef __cplusplus
+}
+#endif //! __cplusplus
+
+// Include implementation files
+#include "vector2.inl"
+#include "vector3.inl"
+#include "color4.inl"
+#include "matrix3x3.inl"
+#include "matrix4x4.inl"
+#include "quaternion.inl"
+
+#endif // AI_TYPES_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/vector2.h b/src/mesh/assimp-master/include/assimp/vector2.h
new file mode 100644
index 0000000..f06e944
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/vector2.h
@@ -0,0 +1,109 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file vector2.h
+ * @brief 2D vector structure, including operators when compiling in C++
+ */
+#pragma once
+#ifndef AI_VECTOR2D_H_INC
+#define AI_VECTOR2D_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#ifdef __cplusplus
+# include <cmath>
+#else
+# include <math.h>
+#endif
+
+#include "defs.h"
+
+// ----------------------------------------------------------------------------------
+/** Represents a two-dimensional vector.
+ */
+
+#ifdef __cplusplus
+template <typename TReal>
+class aiVector2t {
+public:
+ aiVector2t () : x(), y() {}
+ aiVector2t (TReal _x, TReal _y) : x(_x), y(_y) {}
+ explicit aiVector2t (TReal _xyz) : x(_xyz), y(_xyz) {}
+ aiVector2t (const aiVector2t& o) = default;
+
+ void Set( TReal pX, TReal pY);
+ TReal SquareLength() const ;
+ TReal Length() const ;
+ aiVector2t& Normalize();
+
+ const aiVector2t& operator += (const aiVector2t& o);
+ const aiVector2t& operator -= (const aiVector2t& o);
+ const aiVector2t& operator *= (TReal f);
+ const aiVector2t& operator /= (TReal f);
+
+ TReal operator[](unsigned int i) const;
+
+ bool operator== (const aiVector2t& other) const;
+ bool operator!= (const aiVector2t& other) const;
+
+ bool Equal(const aiVector2t &other, TReal epsilon = ai_epsilon) const;
+
+ aiVector2t& operator= (TReal f);
+ const aiVector2t SymMul(const aiVector2t& o);
+
+ template <typename TOther>
+ operator aiVector2t<TOther> () const;
+
+ TReal x, y;
+};
+
+typedef aiVector2t<ai_real> aiVector2D;
+
+#else
+
+struct aiVector2D {
+ ai_real x, y;
+};
+
+#endif // __cplusplus
+
+#endif // AI_VECTOR2D_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/vector2.inl b/src/mesh/assimp-master/include/assimp/vector2.inl
new file mode 100644
index 0000000..245eb31
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/vector2.inl
@@ -0,0 +1,248 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file vector2.inl
+ * @brief Inline implementation of aiVector2t<TReal> operators
+ */
+#pragma once
+#ifndef AI_VECTOR2D_INL_INC
+#define AI_VECTOR2D_INL_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#ifdef __cplusplus
+#include <assimp/vector2.h>
+
+#include <cmath>
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+template <typename TOther>
+aiVector2t<TReal>::operator aiVector2t<TOther> () const {
+ return aiVector2t<TOther>(static_cast<TOther>(x),static_cast<TOther>(y));
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+void aiVector2t<TReal>::Set( TReal pX, TReal pY) {
+ x = pX; y = pY;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+TReal aiVector2t<TReal>::SquareLength() const {
+ return x*x + y*y;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+TReal aiVector2t<TReal>::Length() const {
+ return std::sqrt( SquareLength());
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+aiVector2t<TReal>& aiVector2t<TReal>::Normalize() {
+ *this /= Length();
+ return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+const aiVector2t<TReal>& aiVector2t<TReal>::operator += (const aiVector2t& o) {
+ x += o.x; y += o.y;
+ return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+const aiVector2t<TReal>& aiVector2t<TReal>::operator -= (const aiVector2t& o) {
+ x -= o.x; y -= o.y;
+ return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+const aiVector2t<TReal>& aiVector2t<TReal>::operator *= (TReal f) {
+ x *= f; y *= f;
+ return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+const aiVector2t<TReal>& aiVector2t<TReal>::operator /= (TReal f) {
+ x /= f; y /= f;
+ return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+TReal aiVector2t<TReal>::operator[](unsigned int i) const {
+ switch (i) {
+ case 0:
+ return x;
+ case 1:
+ return y;
+ default:
+ break;
+
+ }
+ return x;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+bool aiVector2t<TReal>::operator== (const aiVector2t& other) const {
+ return x == other.x && y == other.y;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+bool aiVector2t<TReal>::operator!= (const aiVector2t& other) const {
+ return x != other.x || y != other.y;
+}
+
+// ---------------------------------------------------------------------------
+template<typename TReal>
+inline
+bool aiVector2t<TReal>::Equal(const aiVector2t& other, TReal epsilon) const {
+ return
+ std::abs(x - other.x) <= epsilon &&
+ std::abs(y - other.y) <= epsilon;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+aiVector2t<TReal>& aiVector2t<TReal>::operator= (TReal f) {
+ x = y = f;
+ return *this;
+}
+
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+inline
+const aiVector2t<TReal> aiVector2t<TReal>::SymMul(const aiVector2t& o) {
+ return aiVector2t(x*o.x,y*o.y);
+}
+
+
+// ------------------------------------------------------------------------------------------------
+// symmetric addition
+template <typename TReal>
+inline
+aiVector2t<TReal> operator + (const aiVector2t<TReal>& v1, const aiVector2t<TReal>& v2) {
+ return aiVector2t<TReal>( v1.x + v2.x, v1.y + v2.y);
+}
+
+// ------------------------------------------------------------------------------------------------
+// symmetric subtraction
+template <typename TReal>
+inline
+aiVector2t<TReal> operator - (const aiVector2t<TReal>& v1, const aiVector2t<TReal>& v2) {
+ return aiVector2t<TReal>( v1.x - v2.x, v1.y - v2.y);
+}
+
+// ------------------------------------------------------------------------------------------------
+// scalar product
+template <typename TReal>
+inline
+TReal operator * (const aiVector2t<TReal>& v1, const aiVector2t<TReal>& v2) {
+ return v1.x*v2.x + v1.y*v2.y;
+}
+
+// ------------------------------------------------------------------------------------------------
+// scalar multiplication
+template <typename TReal>
+inline
+aiVector2t<TReal> operator * ( TReal f, const aiVector2t<TReal>& v) {
+ return aiVector2t<TReal>( f*v.x, f*v.y);
+}
+
+// ------------------------------------------------------------------------------------------------
+// and the other way around
+template <typename TReal>
+inline
+aiVector2t<TReal> operator * ( const aiVector2t<TReal>& v, TReal f) {
+ return aiVector2t<TReal>( f*v.x, f*v.y);
+}
+
+// ------------------------------------------------------------------------------------------------
+// scalar division
+template <typename TReal>
+inline
+aiVector2t<TReal> operator / ( const aiVector2t<TReal>& v, TReal f) {
+ return v * (1/f);
+}
+
+// ------------------------------------------------------------------------------------------------
+// vector division
+template <typename TReal>
+inline
+aiVector2t<TReal> operator / ( const aiVector2t<TReal>& v, const aiVector2t<TReal>& v2) {
+ return aiVector2t<TReal>(v.x / v2.x,v.y / v2.y);
+}
+
+// ------------------------------------------------------------------------------------------------
+// vector negation
+template <typename TReal>
+inline
+aiVector2t<TReal> operator - ( const aiVector2t<TReal>& v) {
+ return aiVector2t<TReal>( -v.x, -v.y);
+}
+
+#endif
+
+#endif // AI_VECTOR2D_INL_INC
diff --git a/src/mesh/assimp-master/include/assimp/vector3.h b/src/mesh/assimp-master/include/assimp/vector3.h
new file mode 100644
index 0000000..a886def
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/vector3.h
@@ -0,0 +1,167 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+/** @file vector3.h
+ * @brief 3D vector structure, including operators when compiling in C++
+ */
+#pragma once
+#ifndef AI_VECTOR3D_H_INC
+#define AI_VECTOR3D_H_INC
+
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
+#ifdef __cplusplus
+# include <cmath>
+#else
+# include <math.h>
+#endif
+
+#include <assimp/defs.h>
+
+#ifdef __cplusplus
+
+template<typename TReal> class aiMatrix3x3t;
+template<typename TReal> class aiMatrix4x4t;
+
+// ---------------------------------------------------------------------------
+/// @brief Represents a three-dimensional vector.
+// ---------------------------------------------------------------------------
+template <typename TReal>
+class aiVector3t {
+public:
+ /// @brief The default class constructor.
+ aiVector3t() AI_NO_EXCEPT : x(), y(), z() {}
+
+ /// @brief The class constructor with the components.
+ /// @param _x The x-component for the vector.
+ /// @param _y The y-component for the vector.
+ /// @param _z The z-component for the vector.
+ aiVector3t(TReal _x, TReal _y, TReal _z) : x(_x), y(_y), z(_z) {}
+
+ /// @brief The class constructor with a default value.
+ /// @param _xyz The value for x, y and z.
+ explicit aiVector3t (TReal _xyz ) : x(_xyz), y(_xyz), z(_xyz) {}
+
+ /// @brief The copy constructor.
+ /// @param o The instance to copy from.
+ aiVector3t( const aiVector3t& o ) = default;
+
+ /// @brief combined operators
+ /// @brief The copy constructor.
+ const aiVector3t& operator += (const aiVector3t& o);
+
+ /// @brief The copy constructor.
+ const aiVector3t& operator -= (const aiVector3t& o);
+
+ /// @brief The copy constructor.
+ const aiVector3t& operator *= (TReal f);
+
+ /// @brief The copy constructor.
+ const aiVector3t& operator /= (TReal f);
+
+ /// @brief Transform vector by matrix
+ aiVector3t& operator *= (const aiMatrix3x3t<TReal>& mat);
+ aiVector3t& operator *= (const aiMatrix4x4t<TReal>& mat);
+
+ /// @brief access a single element, const.
+ TReal operator[](unsigned int i) const;
+
+ /// @brief access a single element, non-const.
+ TReal& operator[](unsigned int i);
+
+ // comparison
+ bool operator== (const aiVector3t& other) const;
+ bool operator!= (const aiVector3t& other) const;
+ bool operator < (const aiVector3t& other) const;
+
+ /// @brief
+ bool Equal(const aiVector3t &other, TReal epsilon = ai_epsilon) const;
+
+ template <typename TOther>
+ operator aiVector3t<TOther> () const;
+
+ /** @brief Set the components of a vector
+ * @param pX X component
+ * @param pY Y component
+ * @param pZ Z component */
+ void Set( TReal pX, TReal pY, TReal pZ);
+
+ /** @brief Get the squared length of the vector
+ * @return Square length */
+ TReal SquareLength() const;
+
+ /** @brief Get the length of the vector
+ * @return length */
+ TReal Length() const;
+
+
+ /** @brief Normalize the vector */
+ aiVector3t& Normalize();
+
+ /** @brief Normalize the vector with extra check for zero vectors */
+ aiVector3t& NormalizeSafe();
+
+ /** @brief Componentwise multiplication of two vectors
+ *
+ * Note that vec*vec yields the dot product.
+ * @param o Second factor */
+ const aiVector3t SymMul(const aiVector3t& o);
+
+ TReal x, y, z;
+};
+
+
+typedef aiVector3t<ai_real> aiVector3D;
+
+#else
+
+struct aiVector3D {
+ ai_real x, y, z;
+};
+
+#endif // __cplusplus
+
+#ifdef __cplusplus
+
+#endif // __cplusplus
+
+#endif // AI_VECTOR3D_H_INC
diff --git a/src/mesh/assimp-master/include/assimp/vector3.inl b/src/mesh/assimp-master/include/assimp/vector3.inl
new file mode 100644
index 0000000..28ca2be
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/vector3.inl
@@ -0,0 +1,284 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file vector3.inl
+ * @brief Inline implementation of aiVector3t<TReal> operators
+ */
+#pragma once
+#ifndef AI_VECTOR3D_INL_INC
+#define AI_VECTOR3D_INL_INC
+
+#ifdef __cplusplus
+#include <assimp/vector3.h>
+
+#include <cmath>
+
+// ------------------------------------------------------------------------------------------------
+/** Transformation of a vector by a 3x3 matrix */
+template <typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal> operator * (const aiMatrix3x3t<TReal>& pMatrix, const aiVector3t<TReal>& pVector) {
+ aiVector3t<TReal> res;
+ res.x = pMatrix.a1 * pVector.x + pMatrix.a2 * pVector.y + pMatrix.a3 * pVector.z;
+ res.y = pMatrix.b1 * pVector.x + pMatrix.b2 * pVector.y + pMatrix.b3 * pVector.z;
+ res.z = pMatrix.c1 * pVector.x + pMatrix.c2 * pVector.y + pMatrix.c3 * pVector.z;
+ return res;
+}
+
+// ------------------------------------------------------------------------------------------------
+/** Transformation of a vector by a 4x4 matrix */
+template <typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal> operator * (const aiMatrix4x4t<TReal>& pMatrix, const aiVector3t<TReal>& pVector) {
+ aiVector3t<TReal> res;
+ res.x = pMatrix.a1 * pVector.x + pMatrix.a2 * pVector.y + pMatrix.a3 * pVector.z + pMatrix.a4;
+ res.y = pMatrix.b1 * pVector.x + pMatrix.b2 * pVector.y + pMatrix.b3 * pVector.z + pMatrix.b4;
+ res.z = pMatrix.c1 * pVector.x + pMatrix.c2 * pVector.y + pMatrix.c3 * pVector.z + pMatrix.c4;
+ return res;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+template <typename TOther>
+aiVector3t<TReal>::operator aiVector3t<TOther> () const {
+ return aiVector3t<TOther>(static_cast<TOther>(x),static_cast<TOther>(y),static_cast<TOther>(z));
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE void aiVector3t<TReal>::Set( TReal pX, TReal pY, TReal pZ) {
+ x = pX;
+ y = pY;
+ z = pZ;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE TReal aiVector3t<TReal>::SquareLength() const {
+ return x*x + y*y + z*z;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE TReal aiVector3t<TReal>::Length() const {
+ return std::sqrt( SquareLength());
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+ aiVector3t<TReal>& aiVector3t<TReal>::Normalize() {
+ const TReal l = Length();
+ if (l == 0) {
+ return *this;
+ }
+ *this /= Length();
+
+ return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal>& aiVector3t<TReal>::NormalizeSafe() {
+ TReal len = Length();
+ if ( len > static_cast< TReal >( 0 ) ) {
+ *this /= len;
+ }
+ return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE const aiVector3t<TReal>& aiVector3t<TReal>::operator += (const aiVector3t<TReal>& o) {
+ x += o.x;
+ y += o.y;
+ z += o.z;
+
+ return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE const aiVector3t<TReal>& aiVector3t<TReal>::operator -= (const aiVector3t<TReal>& o) {
+ x -= o.x;
+ y -= o.y;
+ z -= o.z;
+
+ return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE const aiVector3t<TReal>& aiVector3t<TReal>::operator *= (TReal f) {
+ x *= f;
+ y *= f;
+ z *= f;
+
+ return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE const aiVector3t<TReal>& aiVector3t<TReal>::operator /= (TReal f) {
+ if ( f == static_cast<TReal>(0.0)) {
+ return *this;
+ }
+ const TReal invF = (TReal) 1.0 / f;
+ x *= invF;
+ y *= invF;
+ z *= invF;
+
+ return *this;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal>& aiVector3t<TReal>::operator *= (const aiMatrix3x3t<TReal>& mat){
+ return (*this = mat * (*this));
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal>& aiVector3t<TReal>::operator *= (const aiMatrix4x4t<TReal>& mat){
+ return (*this = mat * (*this));
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE TReal aiVector3t<TReal>::operator[](unsigned int i) const {
+ switch (i) {
+ case 0:
+ return x;
+ case 1:
+ return y;
+ case 2:
+ return z;
+ default:
+ break;
+ }
+ return x;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE TReal& aiVector3t<TReal>::operator[](unsigned int i) {
+ switch (i) {
+ case 0:
+ return x;
+ case 1:
+ return y;
+ case 2:
+ return z;
+ default:
+ break;
+ }
+ return x;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE bool aiVector3t<TReal>::operator== (const aiVector3t<TReal>& other) const {
+ return x == other.x && y == other.y && z == other.z;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE bool aiVector3t<TReal>::operator!= (const aiVector3t<TReal>& other) const {
+ return x != other.x || y != other.y || z != other.z;
+}
+// ---------------------------------------------------------------------------
+template<typename TReal>
+AI_FORCE_INLINE bool aiVector3t<TReal>::Equal(const aiVector3t<TReal>& other, TReal epsilon) const {
+ return
+ std::abs(x - other.x) <= epsilon &&
+ std::abs(y - other.y) <= epsilon &&
+ std::abs(z - other.z) <= epsilon;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE bool aiVector3t<TReal>::operator < (const aiVector3t<TReal>& other) const {
+ return x != other.x ? x < other.x : y != other.y ? y < other.y : z < other.z;
+}
+// ------------------------------------------------------------------------------------------------
+template <typename TReal>
+AI_FORCE_INLINE const aiVector3t<TReal> aiVector3t<TReal>::SymMul(const aiVector3t<TReal>& o) {
+ return aiVector3t<TReal>(x*o.x,y*o.y,z*o.z);
+}
+// ------------------------------------------------------------------------------------------------
+// symmetric addition
+template <typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal> operator + (const aiVector3t<TReal>& v1, const aiVector3t<TReal>& v2) {
+ return aiVector3t<TReal>( v1.x + v2.x, v1.y + v2.y, v1.z + v2.z);
+}
+// ------------------------------------------------------------------------------------------------
+// symmetric subtraction
+template <typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal> operator - (const aiVector3t<TReal>& v1, const aiVector3t<TReal>& v2) {
+ return aiVector3t<TReal>( v1.x - v2.x, v1.y - v2.y, v1.z - v2.z);
+}
+// ------------------------------------------------------------------------------------------------
+// scalar product
+template <typename TReal>
+AI_FORCE_INLINE TReal operator * (const aiVector3t<TReal>& v1, const aiVector3t<TReal>& v2) {
+ return v1.x*v2.x + v1.y*v2.y + v1.z*v2.z;
+}
+// ------------------------------------------------------------------------------------------------
+// scalar multiplication
+template <typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal> operator * ( TReal f, const aiVector3t<TReal>& v) {
+ return aiVector3t<TReal>( f*v.x, f*v.y, f*v.z);
+}
+// ------------------------------------------------------------------------------------------------
+// and the other way around
+template <typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal> operator * ( const aiVector3t<TReal>& v, TReal f) {
+ return aiVector3t<TReal>( f*v.x, f*v.y, f*v.z);
+}
+// ------------------------------------------------------------------------------------------------
+// scalar division
+template <typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal> operator / ( const aiVector3t<TReal>& v, TReal f) {
+ return v * (1/f);
+}
+// ------------------------------------------------------------------------------------------------
+// vector division
+template <typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal> operator / ( const aiVector3t<TReal>& v, const aiVector3t<TReal>& v2) {
+ return aiVector3t<TReal>(v.x / v2.x,v.y / v2.y,v.z / v2.z);
+}
+// ------------------------------------------------------------------------------------------------
+// cross product
+template<typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal> operator ^ ( const aiVector3t<TReal>& v1, const aiVector3t<TReal>& v2) {
+ return aiVector3t<TReal>( v1.y*v2.z - v1.z*v2.y, v1.z*v2.x - v1.x*v2.z, v1.x*v2.y - v1.y*v2.x);
+}
+// ------------------------------------------------------------------------------------------------
+// vector negation
+template<typename TReal>
+AI_FORCE_INLINE aiVector3t<TReal> operator - ( const aiVector3t<TReal>& v) {
+ return aiVector3t<TReal>( -v.x, -v.y, -v.z);
+}
+
+// ------------------------------------------------------------------------------------------------
+
+#endif // __cplusplus
+#endif // AI_VECTOR3D_INL_INC
diff --git a/src/mesh/assimp-master/include/assimp/version.h b/src/mesh/assimp-master/include/assimp/version.h
new file mode 100644
index 0000000..b83110a
--- /dev/null
+++ b/src/mesh/assimp-master/include/assimp/version.h
@@ -0,0 +1,122 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+ copyright notice, this list of conditions and the
+ following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the
+ following disclaimer in the documentation and/or other
+ materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+ contributors may be used to endorse or promote products
+ derived from this software without specific prior
+ written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file version.h
+ * @brief Functions to query the version of the Assimp runtime, check
+ * compile flags, ...
+ */
+#pragma once
+#ifndef AI_VERSION_H_INC
+#define AI_VERSION_H_INC
+
+#include <assimp/defs.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// ---------------------------------------------------------------------------
+/** @brief Returns a string with legal copyright and licensing information
+ * about Assimp. The string may include multiple lines.
+ * @return Pointer to static string.
+ */
+ASSIMP_API const char* aiGetLegalString (void);
+
+// ---------------------------------------------------------------------------
+/** @brief Returns the current patch version number of Assimp.
+ * @return Patch version of the Assimp runtime the application was
+ * linked/built against
+ */
+ASSIMP_API unsigned int aiGetVersionPatch(void);
+
+// ---------------------------------------------------------------------------
+/** @brief Returns the current minor version number of Assimp.
+ * @return Minor version of the Assimp runtime the application was
+ * linked/built against
+ */
+ASSIMP_API unsigned int aiGetVersionMinor (void);
+
+// ---------------------------------------------------------------------------
+/** @brief Returns the current major version number of Assimp.
+ * @return Major version of the Assimp runtime the application was
+ * linked/built against
+ */
+ASSIMP_API unsigned int aiGetVersionMajor (void);
+
+// ---------------------------------------------------------------------------
+/** @brief Returns the repository revision of the Assimp runtime.
+ * @return SVN Repository revision number of the Assimp runtime the
+ * application was linked/built against.
+ */
+ASSIMP_API unsigned int aiGetVersionRevision (void);
+
+// ---------------------------------------------------------------------------
+/** @brief Returns the branch-name of the Assimp runtime.
+ * @return The current branch name.
+ */
+ASSIMP_API const char *aiGetBranchName();
+
+//! Assimp was compiled as a shared object (Windows: DLL)
+#define ASSIMP_CFLAGS_SHARED 0x1
+//! Assimp was compiled against STLport
+#define ASSIMP_CFLAGS_STLPORT 0x2
+//! Assimp was compiled as a debug build
+#define ASSIMP_CFLAGS_DEBUG 0x4
+
+//! Assimp was compiled with ASSIMP_BUILD_BOOST_WORKAROUND defined
+#define ASSIMP_CFLAGS_NOBOOST 0x8
+//! Assimp was compiled with ASSIMP_BUILD_SINGLETHREADED defined
+#define ASSIMP_CFLAGS_SINGLETHREADED 0x10
+//! Assimp was compiled with ASSIMP_BUILD_SINGLETHREADED defined
+#define ASSIMP_CFLAGS_DOUBLE_SUPPORT 0x20
+
+// ---------------------------------------------------------------------------
+/** @brief Returns assimp's compile flags
+ * @return Any bitwise combination of the ASSIMP_CFLAGS_xxx constants.
+ */
+ASSIMP_API unsigned int aiGetCompileFlags(void);
+
+#ifdef __cplusplus
+} // end extern "C"
+#endif
+
+#endif // !! #ifndef AI_VERSION_H_INC
+