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+/*
+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 to parse a XFile into a temporary structure */
+#ifndef AI_XFILEPARSER_H_INC
+#define AI_XFILEPARSER_H_INC
+
+#include <string>
+#include <vector>
+
+#include <assimp/types.h>
+
+namespace Assimp {
+ namespace XFile {
+ struct Node;
+ struct Mesh;
+ struct Scene;
+ struct Material;
+ struct Animation;
+ struct AnimBone;
+ }
+
+/**
+ * @brief The XFileParser reads a XFile either in text or binary form and builds a temporary
+ * data structure out of it.
+ */
+class XFileParser {
+public:
+ /// Constructor. Creates a data structure out of the XFile given in the memory block.
+ /// @param pBuffer Null-terminated memory buffer containing the XFile
+ explicit XFileParser( const std::vector<char>& pBuffer);
+
+ /// Destructor. Destroys all imported data along with it
+ ~XFileParser();
+
+ /// Returns the temporary representation of the imported data.
+ XFile::Scene* GetImportedData() const { return mScene; }
+
+protected:
+ void ParseFile();
+ void ParseDataObjectTemplate();
+ void ParseDataObjectFrame( XFile::Node *pParent);
+ void ParseDataObjectTransformationMatrix( aiMatrix4x4& pMatrix);
+ void ParseDataObjectMesh( XFile::Mesh* pMesh);
+ void ParseDataObjectSkinWeights( XFile::Mesh* pMesh);
+ void ParseDataObjectSkinMeshHeader( XFile::Mesh* pMesh);
+ void ParseDataObjectMeshNormals( XFile::Mesh* pMesh);
+ void ParseDataObjectMeshTextureCoords( XFile::Mesh* pMesh);
+ void ParseDataObjectMeshVertexColors( XFile::Mesh* pMesh);
+ void ParseDataObjectMeshMaterialList( XFile::Mesh* pMesh);
+ void ParseDataObjectMaterial( XFile::Material* pMaterial);
+ void ParseDataObjectAnimTicksPerSecond();
+ void ParseDataObjectAnimationSet();
+ void ParseDataObjectAnimation( XFile::Animation* pAnim);
+ void ParseDataObjectAnimationKey( XFile::AnimBone *pAnimBone);
+ void ParseDataObjectTextureFilename( std::string& pName);
+ void ParseUnknownDataObject();
+
+ //! places pointer to next begin of a token, and ignores comments
+ void FindNextNoneWhiteSpace();
+
+ //! returns next valid token. Returns empty string if no token there
+ std::string GetNextToken();
+
+ //! reads header of data object including the opening brace.
+ //! returns false if error happened, and writes name of object
+ //! if there is one
+ void readHeadOfDataObject(std::string *poName = nullptr);
+
+ //! checks for closing curly brace, throws exception if not there
+ void CheckForClosingBrace();
+
+ //! checks for one following semicolon, throws exception if not there
+ void CheckForSemicolon();
+
+ //! checks for a separator char, either a ',' or a ';'
+ void CheckForSeparator();
+
+ /// tests and possibly consumes a separator char, but does nothing if there was no separator
+ void TestForSeparator();
+
+ //! reads a x file style string
+ void GetNextTokenAsString( std::string& poString);
+
+ void ReadUntilEndOfLine();
+
+ unsigned short ReadBinWord();
+ unsigned int ReadBinDWord();
+ unsigned int ReadInt();
+ ai_real ReadFloat();
+ aiVector2D ReadVector2();
+ aiVector3D ReadVector3();
+ aiColor3D ReadRGB();
+ aiColor4D ReadRGBA();
+
+ /** Throws an exception with a line number and the given text. */
+ template<typename... T>
+ AI_WONT_RETURN void ThrowException(T&&... args) AI_WONT_RETURN_SUFFIX;
+
+ /**
+ * @brief Filters the imported hierarchy for some degenerated cases that some exporters produce.
+ * @param pData The sub-hierarchy to filter
+ */
+ void FilterHierarchy( XFile::Node* pNode);
+
+protected:
+ unsigned int mMajorVersion, mMinorVersion; ///< version numbers
+ bool mIsBinaryFormat; ///< true if the file is in binary, false if it's in text form
+ unsigned int mBinaryFloatSize; ///< float size in bytes, either 4 or 8
+ unsigned int mBinaryNumCount; /// < counter for number arrays in binary format
+ const char* mP;
+ const char* mEnd;
+ unsigned int mLineNumber; ///< Line number when reading in text format
+ XFile::Scene* mScene; ///< Imported data
+};
+
+} //! ns Assimp
+
+#endif // AI_XFILEPARSER_H_INC